Warning: Permanently added '10.128.0.77' (ED25519) to the list of known hosts. 1970/01/01 00:01:02 ignoring optional flag "type"="gce" 1970/01/01 00:01:03 parsed 1 programs [ 64.478704][ T4456] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 65.453383][ T4486] chnl_net:caif_netlink_parms(): no params data found [ 65.470909][ T4486] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.472141][ T4486] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.473528][ T4486] device bridge_slave_0 entered promiscuous mode [ 65.475447][ T4486] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.476558][ T4486] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.477973][ T4486] device bridge_slave_1 entered promiscuous mode [ 65.485085][ T4486] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.487367][ T4486] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.494691][ T4486] team0: Port device team_slave_0 added [ 65.496888][ T4486] team0: Port device team_slave_1 added [ 65.502894][ T4486] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.503961][ T4486] 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. [ 65.508302][ T4486] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.511661][ T4486] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.512683][ T4486] 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. [ 65.516199][ T4486] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.568826][ T4486] device hsr_slave_0 entered promiscuous mode [ 65.608074][ T4486] device hsr_slave_1 entered promiscuous mode [ 66.190699][ T4486] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.258041][ T4486] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.299115][ T4486] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.349634][ T4486] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.417846][ T4486] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.419046][ T4486] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.420251][ T4486] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.421315][ T4486] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.454165][ T4486] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.459734][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.461633][ T1644] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.462965][ T1644] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.464857][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 66.479269][ T4486] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.481676][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 66.483220][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.484656][ T1644] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.485731][ T1644] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.494409][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 66.496380][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.497740][ T1644] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.498843][ T1644] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.502219][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 66.510508][ T4486] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 66.511974][ T4486] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 66.514355][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 66.515928][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 66.519681][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.521298][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 66.522872][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.524294][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 66.525883][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.527395][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 66.530257][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.533778][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.535238][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.570620][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.571812][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.574635][ T4486] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.582759][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 66.584247][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.593422][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 66.594894][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.596496][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.598365][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.600855][ T4486] device veth0_vlan entered promiscuous mode [ 66.603880][ T4486] device veth1_vlan entered promiscuous mode [ 66.615362][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.616829][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.618553][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 66.619963][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.628341][ T4486] device veth0_macvtap entered promiscuous mode [ 66.631205][ T4486] device veth1_macvtap entered promiscuous mode [ 66.635803][ T4486] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.636990][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.638975][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 66.640432][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 66.641896][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.647609][ T4486] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.650167][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.651629][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.654132][ T4486] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.655453][ T4486] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.656678][ T4486] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.667783][ T4486] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.123317][ T148] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.490882][ T148] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.608988][ T25] cfg80211: failed to load regulatory.db [ 69.609180][ T2064] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.611133][ T2064] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.040503][ T148] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.071127][ T148] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.374520][ T416] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.375721][ T416] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.377556][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 72.382466][ T136] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.383731][ T136] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.387399][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:12 executed programs: 0 [ 72.620514][ T4919] chnl_net:caif_netlink_parms(): no params data found [ 72.637745][ T4919] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.639368][ T4919] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.640889][ T4919] device bridge_slave_0 entered promiscuous mode [ 72.642947][ T4919] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.644127][ T4919] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.645579][ T4919] device bridge_slave_1 entered promiscuous mode [ 72.666488][ T4919] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.669228][ T4919] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.677077][ T4919] team0: Port device team_slave_0 added [ 72.679955][ T4919] team0: Port device team_slave_1 added [ 72.686738][ T4919] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.688302][ T4919] 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. [ 72.692054][ T4919] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.698874][ T4919] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.699980][ T4919] 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. [ 72.703689][ T4919] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 72.739338][ T4919] device hsr_slave_0 entered promiscuous mode [ 72.788022][ T4919] device hsr_slave_1 entered promiscuous mode [ 72.827814][ T4919] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 72.828950][ T4919] Cannot create hsr debugfs directory [ 73.265358][ T4919] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.289292][ T4919] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.347707][ T4919] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.389637][ T4919] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.438501][ T4919] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.439579][ T4919] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.440667][ T4919] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.441676][ T4919] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.458753][ T4919] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.460256][ T1644] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.461784][ T1644] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.467187][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.469161][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.471779][ T4919] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.474579][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.476093][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.477422][ T1644] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.478483][ T1644] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.495003][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.496531][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.498440][ T1644] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.499451][ T1644] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.500708][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 73.502196][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 73.503742][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 73.505559][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.507002][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 73.508539][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.510123][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 73.511786][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.515089][ T4919] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.516956][ T4919] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.521450][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.523053][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 73.524518][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.567586][ T4919] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.571290][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.572546][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.580362][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 73.581951][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.589446][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 73.590905][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.592311][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.593701][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.596075][ T4919] device veth0_vlan entered promiscuous mode [ 73.601445][ T4919] device veth1_vlan entered promiscuous mode [ 73.609542][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.610997][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.612300][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 73.613690][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.616751][ T4919] device veth0_macvtap entered promiscuous mode [ 73.619608][ T4919] device veth1_macvtap entered promiscuous mode [ 73.624515][ T4919] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 73.626041][ T4919] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 73.630471][ T4919] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.631635][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.633042][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 73.634417][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.635883][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.639337][ T4919] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 73.640934][ T4919] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 73.642690][ T4919] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.644534][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.645887][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.650805][ T4919] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.652317][ T4919] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.653676][ T4919] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.654832][ T4919] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.676462][ T416] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.677724][ T416] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.680286][ T416] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.691825][ T416] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.692982][ T416] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.694395][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 73.820485][ T5039] loop0: detected capacity change from 0 to 32768 [ 73.832432][ T5039] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.15 (5039) [ 73.842359][ T5039] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 73.843785][ T5039] BTRFS info (device loop0): using free space tree [ 73.844675][ T5039] BTRFS info (device loop0): has skinny extents [ 73.854992][ T5039] BTRFS info (device loop0): enabling ssd optimizations [ 73.865915][ T5039] FAULT_INJECTION: forcing a failure. [ 73.865915][ T5039] name failslab, interval 1, probability 0, space 0, times 1 [ 73.871067][ T5039] CPU: 1 PID: 5039 Comm: syz.0.15 Not tainted syzkaller #0 [ 73.872259][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.873677][ T5039] Call trace: [ 73.874130][ T5039] dump_backtrace+0x0/0x43c [ 73.874761][ T5039] show_stack+0x2c/0x3c [ 73.875343][ T5039] __dump_stack+0x30/0x40 [ 73.875976][ T5039] dump_stack_lvl+0xf8/0x160 [ 73.876645][ T5039] dump_stack+0x1c/0x5c [ 73.877249][ T5039] should_fail+0x3c0/0x51c [ 73.877834][ T5039] __should_failslab+0xbc/0x10c [ 73.878535][ T5039] should_failslab+0x10/0x28 [ 73.879313][ T5039] slab_pre_alloc_hook+0x64/0xec [ 73.880161][ T5039] kmem_cache_alloc+0x94/0x3e4 [ 73.880901][ T5039] btrfs_alloc_path+0x5c/0x68 [ 73.881648][ T5039] __btrfs_unlink_inode+0x1d8/0xb00 [ 73.882518][ T5039] btrfs_unlink+0x108/0x258 [ 73.883270][ T5039] vfs_unlink+0x2e0/0x4f4 [ 73.883984][ T5039] do_unlinkat+0x31c/0x600 [ 73.884617][ T5039] __arm64_sys_unlinkat+0xe0/0xfc [ 73.885349][ T5039] invoke_syscall+0x98/0x2b8 [ 73.886073][ T5039] el0_svc_common+0x138/0x258 [ 73.886708][ T5039] do_el0_svc+0x58/0x14c [ 73.887328][ T5039] el0_svc+0x78/0x1e0 [ 73.887884][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 73.888602][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 74.059705][ T5069] loop0: detected capacity change from 0 to 32768 [ 74.062407][ T5069] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.16 (5069) [ 74.066973][ T5069] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.068513][ T5069] BTRFS info (device loop0): using free space tree [ 74.069491][ T5069] BTRFS info (device loop0): has skinny extents [ 74.089728][ T5069] BTRFS info (device loop0): enabling ssd optimizations [ 74.094361][ T5069] FAULT_INJECTION: forcing a failure. [ 74.094361][ T5069] name failslab, interval 1, probability 0, space 0, times 0 [ 74.096216][ T5069] CPU: 0 PID: 5069 Comm: syz.0.16 Not tainted syzkaller #0 [ 74.097212][ T5069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.098578][ T5069] Call trace: [ 74.098995][ T5069] dump_backtrace+0x0/0x43c [ 74.099604][ T5069] show_stack+0x2c/0x3c [ 74.100154][ T5069] __dump_stack+0x30/0x40 [ 74.100774][ T5069] dump_stack_lvl+0xf8/0x160 [ 74.101390][ T5069] dump_stack+0x1c/0x5c [ 74.101938][ T5069] should_fail+0x3c0/0x51c [ 74.102526][ T5069] __should_failslab+0xbc/0x10c [ 74.103207][ T5069] should_failslab+0x10/0x28 [ 74.103871][ T5069] slab_pre_alloc_hook+0x64/0xec [ 74.104596][ T5069] kmem_cache_alloc_trace+0x98/0x3fc [ 74.105394][ T5069] btrfs_delete_delayed_dir_index+0x220/0x550 [ 74.106319][ T5069] __btrfs_unlink_inode+0x34c/0xb00 [ 74.107087][ T5069] btrfs_unlink+0x108/0x258 [ 74.107674][ T5069] vfs_unlink+0x2e0/0x4f4 [ 74.108324][ T5069] do_unlinkat+0x31c/0x600 [ 74.108935][ T5069] __arm64_sys_unlinkat+0xe0/0xfc [ 74.109656][ T5069] invoke_syscall+0x98/0x2b8 [ 74.110284][ T5069] el0_svc_common+0x138/0x258 [ 74.110984][ T5069] do_el0_svc+0x58/0x14c [ 74.111550][ T5069] el0_svc+0x78/0x1e0 [ 74.112189][ T5069] el0t_64_sync_handler+0xcc/0xe4 [ 74.112937][ T5069] el0t_64_sync+0x1a0/0x1a4 [ 74.115481][ T5069] ------------[ cut here ]------------ [ 74.116416][ T5069] WARNING: CPU: 0 PID: 5069 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 74.117743][ T5069] Modules linked in: [ 74.118323][ T5069] CPU: 0 PID: 5069 Comm: syz.0.16 Not tainted syzkaller #0 [ 74.119340][ T5069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.120709][ T5069] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.121768][ T5069] pc : __btrfs_unlink_inode+0x908/0xb00 [ 74.122532][ T5069] lr : __btrfs_unlink_inode+0x908/0xb00 [ 74.123317][ T5069] sp : ffff800020a27a60 [ 74.123908][ T5069] x29: ffff800020a27b10 x28: ffff0000ddbce000 x27: ffff0000ed01c010 [ 74.125219][ T5069] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d3c6ce70 [ 74.126450][ T5069] x23: 1ffff00004144f54 x22: dfff800000000000 x21: ffff0000ed1a13a0 [ 74.127527][ T5069] x20: ffff0000de1d9108 x19: 1fffe0001bc3b221 x18: 0000000000000001 [ 74.128657][ T5069] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 74.129849][ T5069] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 74.130976][ T5069] x11: 0000000000000000 x10: 0000000000000000 x9 : f1266a2cf18b0000 [ 74.132057][ T5069] x8 : f1266a2cf18b0000 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.133166][ T5069] x5 : ffff800020a27358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 74.134312][ T5069] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.135445][ T5069] Call trace: [ 74.135941][ T5069] __btrfs_unlink_inode+0x908/0xb00 [ 74.136685][ T5069] btrfs_unlink+0x108/0x258 [ 74.137327][ T5069] vfs_unlink+0x2e0/0x4f4 [ 74.137930][ T5069] do_unlinkat+0x31c/0x600 [ 74.138599][ T5069] __arm64_sys_unlinkat+0xe0/0xfc [ 74.139318][ T5069] invoke_syscall+0x98/0x2b8 [ 74.140015][ T5069] el0_svc_common+0x138/0x258 [ 74.140660][ T5069] do_el0_svc+0x58/0x14c [ 74.141255][ T5069] el0_svc+0x78/0x1e0 [ 74.141816][ T5069] el0t_64_sync_handler+0xcc/0xe4 [ 74.142516][ T5069] el0t_64_sync+0x1a0/0x1a4 [ 74.143152][ T5069] irq event stamp: 79906 [ 74.143744][ T5069] hardirqs last enabled at (79905): [] __up_console_sem+0xb4/0x100 [ 74.145111][ T5069] hardirqs last disabled at (79906): [] el1_dbg+0x24/0x80 [ 74.146482][ T5069] softirqs last enabled at (79886): [] handle_softirqs+0xa4c/0xbf0 [ 74.148095][ T5069] softirqs last disabled at (79835): [] __irq_exit_rcu+0x240/0x440 [ 74.149558][ T5069] ---[ end trace 2689470f4b4bb17f ]--- [ 74.151446][ T5069] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 74.152778][ T5069] BTRFS info (device loop0): forced readonly [ 74.299072][ T5092] loop0: detected capacity change from 0 to 32768 [ 74.342566][ T5092] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.17 (5092) [ 74.347586][ T5092] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.349021][ T5092] BTRFS info (device loop0): using free space tree [ 74.349941][ T5092] BTRFS info (device loop0): has skinny extents [ 74.356835][ T5092] BTRFS info (device loop0): enabling ssd optimizations [ 74.368446][ T5092] FAULT_INJECTION: forcing a failure. [ 74.368446][ T5092] name failslab, interval 1, probability 0, space 0, times 0 [ 74.370365][ T5092] CPU: 0 PID: 5092 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 74.371502][ T5092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.372839][ T5092] Call trace: [ 74.373304][ T5092] dump_backtrace+0x0/0x43c [ 74.373900][ T5092] show_stack+0x2c/0x3c [ 74.374447][ T5092] __dump_stack+0x30/0x40 [ 74.375031][ T5092] dump_stack_lvl+0xf8/0x160 [ 74.375617][ T5092] dump_stack+0x1c/0x5c [ 74.376200][ T5092] should_fail+0x3c0/0x51c [ 74.376814][ T5092] __should_failslab+0xbc/0x10c [ 74.377485][ T5092] should_failslab+0x10/0x28 [ 74.378079][ T5092] slab_pre_alloc_hook+0x64/0xec [ 74.378781][ T5092] kmem_cache_alloc_trace+0x98/0x3fc [ 74.379515][ T5092] btrfs_delete_delayed_dir_index+0x220/0x550 [ 74.380328][ T5092] __btrfs_unlink_inode+0x34c/0xb00 [ 74.381036][ T5092] btrfs_unlink+0x108/0x258 [ 74.381704][ T5092] vfs_unlink+0x2e0/0x4f4 [ 74.382326][ T5092] do_unlinkat+0x31c/0x600 [ 74.382929][ T5092] __arm64_sys_unlinkat+0xe0/0xfc [ 74.383642][ T5092] invoke_syscall+0x98/0x2b8 [ 74.384302][ T5092] el0_svc_common+0x138/0x258 [ 74.384985][ T5092] do_el0_svc+0x58/0x14c [ 74.385579][ T5092] el0_svc+0x78/0x1e0 [ 74.386157][ T5092] el0t_64_sync_handler+0xcc/0xe4 [ 74.386852][ T5092] el0t_64_sync+0x1a0/0x1a4 [ 74.387894][ T5092] ------------[ cut here ]------------ [ 74.388761][ T5092] WARNING: CPU: 0 PID: 5092 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 74.390074][ T5092] Modules linked in: [ 74.390608][ T5092] CPU: 0 PID: 5092 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 74.391749][ T5092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.393126][ T5092] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.394177][ T5092] pc : __btrfs_unlink_inode+0x908/0xb00 [ 74.394928][ T5092] lr : __btrfs_unlink_inode+0x908/0xb00 [ 74.395635][ T5092] sp : ffff800020cd7a60 [ 74.396181][ T5092] x29: ffff800020cd7b10 x28: ffff0000d894a000 x27: ffff0000ed01c410 [ 74.397322][ T5092] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cd7aff20 [ 74.398436][ T5092] x23: 1ffff0000419af54 x22: dfff800000000000 x21: ffff0000ed1a3ae0 [ 74.399531][ T5092] x20: ffff0000de1d9268 x19: 1fffe0001bc3b24d x18: 0000000000000001 [ 74.400623][ T5092] x17: 0000000000000000 x16: ffff800008302168 x15: 00000000ffffffff [ 74.401717][ T5092] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 74.402930][ T5092] x11: 0000000000000000 x10: 0000000000000000 x9 : 22e69f499a872a00 [ 74.404087][ T5092] x8 : 22e69f499a872a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.405230][ T5092] x5 : ffff800020cd7358 x4 : ffff80001426f520 x3 : ffff800008302278 [ 74.406350][ T5092] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.407496][ T5092] Call trace: [ 74.407976][ T5092] __btrfs_unlink_inode+0x908/0xb00 [ 74.408690][ T5092] btrfs_unlink+0x108/0x258 [ 74.409306][ T5092] vfs_unlink+0x2e0/0x4f4 [ 74.409885][ T5092] do_unlinkat+0x31c/0x600 [ 74.410512][ T5092] __arm64_sys_unlinkat+0xe0/0xfc [ 74.411197][ T5092] invoke_syscall+0x98/0x2b8 [ 74.411826][ T5092] el0_svc_common+0x138/0x258 [ 74.412495][ T5092] do_el0_svc+0x58/0x14c [ 74.413099][ T5092] el0_svc+0x78/0x1e0 [ 74.413675][ T5092] el0t_64_sync_handler+0xcc/0xe4 [ 74.414385][ T5092] el0t_64_sync+0x1a0/0x1a4 [ 74.415019][ T5092] irq event stamp: 79620 [ 74.415553][ T5092] hardirqs last enabled at (79619): [] __up_console_sem+0xb4/0x100 [ 74.416854][ T5092] hardirqs last disabled at (79620): [] el1_dbg+0x24/0x80 [ 74.418061][ T5092] softirqs last enabled at (79600): [] handle_softirqs+0xa4c/0xbf0 [ 74.419383][ T5092] softirqs last disabled at (79529): [] __irq_exit_rcu+0x240/0x440 [ 74.420696][ T5092] ---[ end trace 2689470f4b4bb180 ]--- [ 74.423136][ T5092] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 74.424506][ T5092] BTRFS info (device loop0): forced readonly [ 74.560637][ T5114] loop0: detected capacity change from 0 to 32768 [ 74.629112][ T5114] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.18 (5114) [ 74.648084][ T3625] Bluetooth: hci0: command 0x0409 tx timeout [ 74.671926][ T5114] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.673268][ T5114] BTRFS info (device loop0): using free space tree [ 74.674281][ T5114] BTRFS info (device loop0): has skinny extents [ 74.691989][ T5114] BTRFS info (device loop0): enabling ssd optimizations [ 74.695850][ T5114] FAULT_INJECTION: forcing a failure. [ 74.695850][ T5114] name failslab, interval 1, probability 0, space 0, times 0 [ 74.699482][ T5114] CPU: 0 PID: 5114 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 74.700875][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.702471][ T5114] Call trace: [ 74.702952][ T5114] dump_backtrace+0x0/0x43c [ 74.703638][ T5114] show_stack+0x2c/0x3c [ 74.704168][ T5114] __dump_stack+0x30/0x40 [ 74.704816][ T5114] dump_stack_lvl+0xf8/0x160 [ 74.705431][ T5114] dump_stack+0x1c/0x5c [ 74.706001][ T5114] should_fail+0x3c0/0x51c [ 74.706584][ T5114] __should_failslab+0xbc/0x10c [ 74.707290][ T5114] should_failslab+0x10/0x28 [ 74.707937][ T5114] slab_pre_alloc_hook+0x64/0xec [ 74.708643][ T5114] kmem_cache_alloc+0x94/0x3e4 [ 74.709330][ T5114] btrfs_alloc_path+0x5c/0x68 [ 74.710024][ T5114] __btrfs_unlink_inode+0x1d8/0xb00 [ 74.710793][ T5114] btrfs_unlink+0x108/0x258 [ 74.711397][ T5114] vfs_unlink+0x2e0/0x4f4 [ 74.712008][ T5114] do_unlinkat+0x31c/0x600 [ 74.712633][ T5114] __arm64_sys_unlinkat+0xe0/0xfc [ 74.713349][ T5114] invoke_syscall+0x98/0x2b8 [ 74.713998][ T5114] el0_svc_common+0x138/0x258 [ 74.714649][ T5114] do_el0_svc+0x58/0x14c [ 74.715277][ T5114] el0_svc+0x78/0x1e0 [ 74.715846][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 74.716613][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 74.861504][ T5140] loop0: detected capacity change from 0 to 32768 [ 74.869841][ T5140] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.19 (5140) [ 74.873534][ T5140] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.874876][ T5140] BTRFS info (device loop0): using free space tree [ 74.875823][ T5140] BTRFS info (device loop0): has skinny extents [ 74.883107][ T5140] BTRFS info (device loop0): enabling ssd optimizations [ 74.886791][ T5140] FAULT_INJECTION: forcing a failure. [ 74.886791][ T5140] name failslab, interval 1, probability 0, space 0, times 0 [ 74.889480][ T5140] CPU: 1 PID: 5140 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 74.890683][ T5140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.892115][ T5140] Call trace: [ 74.892532][ T5140] dump_backtrace+0x0/0x43c [ 74.893163][ T5140] show_stack+0x2c/0x3c [ 74.893730][ T5140] __dump_stack+0x30/0x40 [ 74.894333][ T5140] dump_stack_lvl+0xf8/0x160 [ 74.894941][ T5140] dump_stack+0x1c/0x5c [ 74.895553][ T5140] should_fail+0x3c0/0x51c [ 74.896200][ T5140] __should_failslab+0xbc/0x10c [ 74.896900][ T5140] should_failslab+0x10/0x28 [ 74.897556][ T5140] slab_pre_alloc_hook+0x64/0xec [ 74.898205][ T5140] kmem_cache_alloc+0x94/0x3e4 [ 74.899028][ T5140] btrfs_alloc_path+0x5c/0x68 [ 74.899843][ T5140] __btrfs_unlink_inode+0x1d8/0xb00 [ 74.900674][ T5140] btrfs_unlink+0x108/0x258 [ 74.901316][ T5140] vfs_unlink+0x2e0/0x4f4 [ 74.901972][ T5140] do_unlinkat+0x31c/0x600 [ 74.902620][ T5140] __arm64_sys_unlinkat+0xe0/0xfc [ 74.903356][ T5140] invoke_syscall+0x98/0x2b8 [ 74.904029][ T5140] el0_svc_common+0x138/0x258 [ 74.904702][ T5140] do_el0_svc+0x58/0x14c [ 74.905360][ T5140] el0_svc+0x78/0x1e0 [ 74.905968][ T5140] el0t_64_sync_handler+0xcc/0xe4 [ 74.906689][ T5140] el0t_64_sync+0x1a0/0x1a4 [ 74.911915][ T148] device hsr_slave_0 left promiscuous mode [ 74.949696][ T148] device hsr_slave_1 left promiscuous mode [ 75.007976][ T148] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 75.009249][ T148] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 75.011976][ T148] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 75.013105][ T148] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 75.014485][ T148] device bridge_slave_1 left promiscuous mode [ 75.015478][ T148] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.029403][ T148] device bridge_slave_0 left promiscuous mode [ 75.030415][ T148] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.055496][ T5163] loop0: detected capacity change from 0 to 32768 [ 75.139890][ T5163] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.20 (5163) [ 75.142867][ T5163] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.144488][ T5163] BTRFS info (device loop0): using free space tree [ 75.145527][ T5163] BTRFS info (device loop0): has skinny extents [ 75.153140][ T5163] BTRFS info (device loop0): enabling ssd optimizations [ 75.156980][ T5163] FAULT_INJECTION: forcing a failure. [ 75.156980][ T5163] name failslab, interval 1, probability 0, space 0, times 0 [ 75.158093][ T148] device veth1_macvtap left promiscuous mode [ 75.159019][ T5163] CPU: 1 PID: 5163 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 75.159885][ T148] device veth0_macvtap left promiscuous mode [ 75.161140][ T5163] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.162036][ T148] device veth1_vlan left promiscuous mode [ 75.163385][ T5163] Call trace: [ 75.163391][ T5163] dump_backtrace+0x0/0x43c [ 75.164620][ T148] device veth0_vlan left promiscuous mode [ 75.164640][ T5163] show_stack+0x2c/0x3c [ 75.166751][ T5163] __dump_stack+0x30/0x40 [ 75.167359][ T5163] dump_stack_lvl+0xf8/0x160 [ 75.167975][ T5163] dump_stack+0x1c/0x5c [ 75.168537][ T5163] should_fail+0x3c0/0x51c [ 75.169162][ T5163] __should_failslab+0xbc/0x10c [ 75.169842][ T5163] should_failslab+0x10/0x28 [ 75.170457][ T5163] slab_pre_alloc_hook+0x64/0xec [ 75.171211][ T5163] kmem_cache_alloc_trace+0x98/0x3fc [ 75.172036][ T5163] btrfs_delete_delayed_dir_index+0x220/0x550 [ 75.172958][ T5163] __btrfs_unlink_inode+0x34c/0xb00 [ 75.173703][ T5163] btrfs_unlink+0x108/0x258 [ 75.174385][ T5163] vfs_unlink+0x2e0/0x4f4 [ 75.175079][ T5163] do_unlinkat+0x31c/0x600 [ 75.175749][ T5163] __arm64_sys_unlinkat+0xe0/0xfc [ 75.176549][ T5163] invoke_syscall+0x98/0x2b8 [ 75.177270][ T5163] el0_svc_common+0x138/0x258 [ 75.177970][ T5163] do_el0_svc+0x58/0x14c [ 75.178635][ T5163] el0_svc+0x78/0x1e0 [ 75.179239][ T5163] el0t_64_sync_handler+0xcc/0xe4 [ 75.179971][ T5163] el0t_64_sync+0x1a0/0x1a4 [ 75.180991][ T5163] ------------[ cut here ]------------ [ 75.181901][ T5163] WARNING: CPU: 1 PID: 5163 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 75.183179][ T5163] Modules linked in: [ 75.183766][ T5163] CPU: 1 PID: 5163 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 75.184941][ T5163] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.186527][ T5163] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.187705][ T5163] pc : __btrfs_unlink_inode+0x908/0xb00 [ 75.188533][ T5163] lr : __btrfs_unlink_inode+0x908/0xb00 [ 75.189335][ T5163] sp : ffff800020f07a60 [ 75.189923][ T5163] x29: ffff800020f07b10 x28: ffff0000ce61c000 x27: ffff0000ed18c810 [ 75.191017][ T5163] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000da9ad6e0 [ 75.192164][ T5163] x23: 1ffff000041e0f54 x22: dfff800000000000 x21: ffff0000ed13d850 [ 75.193315][ T5163] x20: ffff0000de24b688 x19: 1fffe0001bc496d1 x18: 0000000000000001 [ 75.194549][ T5163] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 75.195774][ T5163] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 75.197017][ T5163] x11: 0000000000000000 x10: 0000000000000000 x9 : 1cec786ed3f1ad00 [ 75.198136][ T5163] x8 : 1cec786ed3f1ad00 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.199295][ T5163] x5 : ffff800020f07358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 75.200530][ T5163] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.201757][ T5163] Call trace: [ 75.202232][ T5163] __btrfs_unlink_inode+0x908/0xb00 [ 75.202984][ T5163] btrfs_unlink+0x108/0x258 [ 75.203661][ T5163] vfs_unlink+0x2e0/0x4f4 [ 75.204279][ T5163] do_unlinkat+0x31c/0x600 [ 75.204892][ T5163] __arm64_sys_unlinkat+0xe0/0xfc [ 75.205574][ T5163] invoke_syscall+0x98/0x2b8 [ 75.206278][ T5163] el0_svc_common+0x138/0x258 [ 75.206992][ T5163] do_el0_svc+0x58/0x14c [ 75.207594][ T5163] el0_svc+0x78/0x1e0 [ 75.208201][ T5163] el0t_64_sync_handler+0xcc/0xe4 [ 75.208934][ T5163] el0t_64_sync+0x1a0/0x1a4 [ 75.209513][ T5163] irq event stamp: 78952 [ 75.210113][ T5163] hardirqs last enabled at (78951): [] __up_console_sem+0xb4/0x100 [ 75.211471][ T5163] hardirqs last disabled at (78952): [] el1_dbg+0x24/0x80 [ 75.212689][ T5163] softirqs last enabled at (78932): [] handle_softirqs+0xa4c/0xbf0 [ 75.213947][ T5163] softirqs last disabled at (78849): [] __irq_exit_rcu+0x240/0x440 [ 75.215188][ T5163] ---[ end trace 2689470f4b4bb181 ]--- [ 75.216125][ T5163] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 75.217803][ T5163] BTRFS info (device loop0): forced readonly [ 75.351962][ T148] team0 (unregistering): Port device team_slave_1 removed [ 75.356258][ T148] team0 (unregistering): Port device team_slave_0 removed [ 75.369522][ T148] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 75.400970][ T5186] loop0: detected capacity change from 0 to 32768 [ 75.409101][ T5186] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.21 (5186) [ 75.413216][ T5186] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.414827][ T5186] BTRFS info (device loop0): using free space tree [ 75.415734][ T5186] BTRFS info (device loop0): has skinny extents [ 75.415798][ T148] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 75.434482][ T5186] BTRFS info (device loop0): enabling ssd optimizations [ 75.438909][ T5186] FAULT_INJECTION: forcing a failure. [ 75.438909][ T5186] name failslab, interval 1, probability 0, space 0, times 0 [ 75.440955][ T5186] CPU: 1 PID: 5186 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 75.442152][ T5186] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.443593][ T5186] Call trace: [ 75.444079][ T5186] dump_backtrace+0x0/0x43c [ 75.444704][ T5186] show_stack+0x2c/0x3c [ 75.445317][ T5186] __dump_stack+0x30/0x40 [ 75.445910][ T5186] dump_stack_lvl+0xf8/0x160 [ 75.446555][ T5186] dump_stack+0x1c/0x5c [ 75.447144][ T5186] should_fail+0x3c0/0x51c [ 75.447730][ T5186] __should_failslab+0xbc/0x10c [ 75.448377][ T5186] should_failslab+0x10/0x28 [ 75.449008][ T5186] slab_pre_alloc_hook+0x64/0xec [ 75.449751][ T5186] kmem_cache_alloc_trace+0x98/0x3fc [ 75.450577][ T5186] btrfs_delete_delayed_dir_index+0x220/0x550 [ 75.451400][ T5186] __btrfs_unlink_inode+0x34c/0xb00 [ 75.452124][ T5186] btrfs_unlink+0x108/0x258 [ 75.452740][ T5186] vfs_unlink+0x2e0/0x4f4 [ 75.453363][ T5186] do_unlinkat+0x31c/0x600 [ 75.453973][ T5186] __arm64_sys_unlinkat+0xe0/0xfc [ 75.454638][ T5186] invoke_syscall+0x98/0x2b8 [ 75.455306][ T5186] el0_svc_common+0x138/0x258 [ 75.456052][ T5186] do_el0_svc+0x58/0x14c [ 75.456659][ T5186] el0_svc+0x78/0x1e0 [ 75.457241][ T5186] el0t_64_sync_handler+0xcc/0xe4 [ 75.457959][ T5186] el0t_64_sync+0x1a0/0x1a4 [ 75.462157][ T5186] ------------[ cut here ]------------ [ 75.463132][ T5186] WARNING: CPU: 0 PID: 5186 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 75.464464][ T5186] Modules linked in: [ 75.465029][ T5186] CPU: 0 PID: 5186 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 75.466180][ T5186] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.467636][ T5186] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.468715][ T5186] pc : __btrfs_unlink_inode+0x908/0xb00 [ 75.469513][ T5186] lr : __btrfs_unlink_inode+0x908/0xb00 [ 75.470279][ T5186] sp : ffff800020f17a60 [ 75.470866][ T5186] x29: ffff800020f17b10 x28: ffff0000eb87c000 x27: ffff0000ed18cc10 [ 75.472058][ T5186] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d3cc36e0 [ 75.473202][ T5186] x23: 1ffff000041e2f54 x22: dfff800000000000 x21: ffff0000ed13f5c0 [ 75.474317][ T5186] x20: ffff0000de24b7e8 x19: 1fffe0001bc496fd x18: 0000000000000001 [ 75.475481][ T5186] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 75.476593][ T5186] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 75.477804][ T5186] x11: 0000000000000000 x10: 0000000000000000 x9 : 70dddc03d32ddc00 [ 75.478986][ T5186] x8 : 70dddc03d32ddc00 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.480161][ T5186] x5 : ffff800020f17358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 75.481325][ T5186] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.482544][ T5186] Call trace: [ 75.483058][ T5186] __btrfs_unlink_inode+0x908/0xb00 [ 75.483810][ T5186] btrfs_unlink+0x108/0x258 [ 75.484408][ T5186] vfs_unlink+0x2e0/0x4f4 [ 75.484994][ T5186] do_unlinkat+0x31c/0x600 [ 75.485604][ T5186] __arm64_sys_unlinkat+0xe0/0xfc [ 75.486281][ T5186] invoke_syscall+0x98/0x2b8 [ 75.486942][ T5186] el0_svc_common+0x138/0x258 [ 75.487614][ T5186] do_el0_svc+0x58/0x14c [ 75.488215][ T5186] el0_svc+0x78/0x1e0 [ 75.488788][ T5186] el0t_64_sync_handler+0xcc/0xe4 [ 75.489495][ T5186] el0t_64_sync+0x1a0/0x1a4 [ 75.490154][ T5186] irq event stamp: 79170 [ 75.490769][ T5186] hardirqs last enabled at (79169): [] __up_console_sem+0xb4/0x100 [ 75.492164][ T5186] hardirqs last disabled at (79170): [] el1_dbg+0x24/0x80 [ 75.493405][ T5186] softirqs last enabled at (79148): [] handle_softirqs+0xa4c/0xbf0 [ 75.494976][ T5186] softirqs last disabled at (79067): [] __irq_exit_rcu+0x240/0x440 [ 75.496427][ T5186] ---[ end trace 2689470f4b4bb182 ]--- [ 75.501260][ T5186] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 75.502773][ T5186] BTRFS info (device loop0): forced readonly [ 75.560474][ T148] bond0 (unregistering): Released all slaves [ 75.646326][ T5208] loop0: detected capacity change from 0 to 32768 [ 75.653975][ T5208] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.22 (5208) [ 75.663717][ T5208] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.665096][ T5208] BTRFS info (device loop0): using free space tree [ 75.666146][ T5208] BTRFS info (device loop0): has skinny extents [ 75.694373][ T5208] BTRFS info (device loop0): enabling ssd optimizations [ 75.699947][ T5208] FAULT_INJECTION: forcing a failure. [ 75.699947][ T5208] name failslab, interval 1, probability 0, space 0, times 0 [ 75.701948][ T5208] CPU: 1 PID: 5208 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 75.703180][ T5208] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.704639][ T5208] Call trace: [ 75.705113][ T5208] dump_backtrace+0x0/0x43c [ 75.705782][ T5208] show_stack+0x2c/0x3c [ 75.706389][ T5208] __dump_stack+0x30/0x40 [ 75.707021][ T5208] dump_stack_lvl+0xf8/0x160 [ 75.707692][ T5208] dump_stack+0x1c/0x5c [ 75.708316][ T5208] should_fail+0x3c0/0x51c [ 75.708969][ T5208] __should_failslab+0xbc/0x10c [ 75.709654][ T5208] should_failslab+0x10/0x28 [ 75.710316][ T5208] slab_pre_alloc_hook+0x64/0xec [ 75.710997][ T5208] kmem_cache_alloc_trace+0x98/0x3fc [ 75.711706][ T5208] btrfs_delete_delayed_dir_index+0x220/0x550 [ 75.712554][ T5208] __btrfs_unlink_inode+0x34c/0xb00 [ 75.713342][ T5208] btrfs_unlink+0x108/0x258 [ 75.713977][ T5208] vfs_unlink+0x2e0/0x4f4 [ 75.714559][ T5208] do_unlinkat+0x31c/0x600 [ 75.715191][ T5208] __arm64_sys_unlinkat+0xe0/0xfc [ 75.715968][ T5208] invoke_syscall+0x98/0x2b8 [ 75.716629][ T5208] el0_svc_common+0x138/0x258 [ 75.717274][ T5208] do_el0_svc+0x58/0x14c [ 75.717866][ T5208] el0_svc+0x78/0x1e0 [ 75.718436][ T5208] el0t_64_sync_handler+0xcc/0xe4 [ 75.719180][ T5208] el0t_64_sync+0x1a0/0x1a4 [ 75.720092][ T5208] ------------[ cut here ]------------ [ 75.721091][ T5208] WARNING: CPU: 1 PID: 5208 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 75.722546][ T5208] Modules linked in: [ 75.723163][ T5208] CPU: 1 PID: 5208 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 75.724520][ T5208] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.726011][ T5208] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.727218][ T5208] pc : __btrfs_unlink_inode+0x908/0xb00 [ 75.728081][ T5208] lr : __btrfs_unlink_inode+0x908/0xb00 [ 75.728984][ T5208] sp : ffff8000212f7a60 [ 75.729614][ T5208] x29: ffff8000212f7b10 x28: ffff0000d235c000 x27: ffff0000ed18d010 [ 75.730774][ T5208] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d3c37790 [ 75.731877][ T5208] x23: 1ffff0000425ef54 x22: dfff800000000000 x21: ffff0000ed1d9d70 [ 75.733043][ T5208] x20: ffff0000de24b948 x19: 1fffe0001bc49729 x18: 0000000000000001 [ 75.734142][ T5208] x17: 0000000000000000 x16: ffff800008302168 x15: 00000000ffffffff [ 75.735256][ T5208] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 75.736405][ T5208] x11: 0000000000000000 x10: 0000000000000000 x9 : be95d013732e7100 [ 75.737583][ T5208] x8 : be95d013732e7100 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.738843][ T5208] x5 : ffff8000212f7358 x4 : ffff80001426f520 x3 : ffff800008302278 [ 75.739949][ T5208] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.741061][ T5208] Call trace: [ 75.741513][ T5208] __btrfs_unlink_inode+0x908/0xb00 [ 75.742272][ T5208] btrfs_unlink+0x108/0x258 [ 75.742951][ T5208] vfs_unlink+0x2e0/0x4f4 [ 75.743609][ T5208] do_unlinkat+0x31c/0x600 [ 75.744281][ T5208] __arm64_sys_unlinkat+0xe0/0xfc [ 75.744996][ T5208] invoke_syscall+0x98/0x2b8 [ 75.745658][ T5208] el0_svc_common+0x138/0x258 [ 75.746335][ T5208] do_el0_svc+0x58/0x14c [ 75.746897][ T5208] el0_svc+0x78/0x1e0 [ 75.747454][ T5208] el0t_64_sync_handler+0xcc/0xe4 [ 75.748116][ T5208] el0t_64_sync+0x1a0/0x1a4 [ 75.748712][ T5208] irq event stamp: 79746 [ 75.749320][ T5208] hardirqs last enabled at (79745): [] __up_console_sem+0xb4/0x100 [ 75.750661][ T5208] hardirqs last disabled at (79746): [] el1_dbg+0x24/0x80 [ 75.751834][ T5208] softirqs last enabled at (79726): [] handle_softirqs+0xa4c/0xbf0 [ 75.753164][ T5208] softirqs last disabled at (79667): [] __irq_exit_rcu+0x240/0x440 [ 75.754482][ T5208] ---[ end trace 2689470f4b4bb183 ]--- [ 75.755469][ T5208] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 75.756999][ T5208] BTRFS info (device loop0): forced readonly [ 75.892128][ T5230] loop0: detected capacity change from 0 to 32768 [ 75.970258][ T5230] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.23 (5230) [ 75.973196][ T5230] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.974478][ T5230] BTRFS info (device loop0): using free space tree [ 75.975373][ T5230] BTRFS info (device loop0): has skinny extents [ 75.994338][ T5230] BTRFS info (device loop0): enabling ssd optimizations [ 76.000564][ T5230] FAULT_INJECTION: forcing a failure. [ 76.000564][ T5230] name failslab, interval 1, probability 0, space 0, times 0 [ 76.002367][ T5230] CPU: 0 PID: 5230 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 76.003730][ T5230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.005120][ T5230] Call trace: [ 76.005578][ T5230] dump_backtrace+0x0/0x43c [ 76.006195][ T5230] show_stack+0x2c/0x3c [ 76.006819][ T5230] __dump_stack+0x30/0x40 [ 76.007502][ T5230] dump_stack_lvl+0xf8/0x160 [ 76.008230][ T5230] dump_stack+0x1c/0x5c [ 76.008862][ T5230] should_fail+0x3c0/0x51c [ 76.009533][ T5230] __should_failslab+0xbc/0x10c [ 76.010262][ T5230] should_failslab+0x10/0x28 [ 76.010933][ T5230] slab_pre_alloc_hook+0x64/0xec [ 76.011593][ T5230] kmem_cache_alloc+0x94/0x3e4 [ 76.012241][ T5230] btrfs_alloc_path+0x5c/0x68 [ 76.012909][ T5230] __btrfs_unlink_inode+0x1d8/0xb00 [ 76.013660][ T5230] btrfs_unlink+0x108/0x258 [ 76.014345][ T5230] vfs_unlink+0x2e0/0x4f4 [ 76.014932][ T5230] do_unlinkat+0x31c/0x600 [ 76.015534][ T5230] __arm64_sys_unlinkat+0xe0/0xfc [ 76.016239][ T5230] invoke_syscall+0x98/0x2b8 [ 76.016853][ T5230] el0_svc_common+0x138/0x258 [ 76.017566][ T5230] do_el0_svc+0x58/0x14c [ 76.018244][ T5230] el0_svc+0x78/0x1e0 [ 76.018801][ T5230] el0t_64_sync_handler+0xcc/0xe4 [ 76.019533][ T5230] el0t_64_sync+0x1a0/0x1a4 [ 76.158443][ T5252] loop0: detected capacity change from 0 to 32768 [ 76.189907][ T5252] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.24 (5252) [ 76.193589][ T5252] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.194968][ T5252] BTRFS info (device loop0): using free space tree [ 76.196018][ T5252] BTRFS info (device loop0): has skinny extents [ 76.204009][ T5252] BTRFS info (device loop0): enabling ssd optimizations [ 76.209535][ T5252] FAULT_INJECTION: forcing a failure. [ 76.209535][ T5252] name failslab, interval 1, probability 0, space 0, times 0 [ 76.211538][ T5252] CPU: 1 PID: 5252 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 76.212861][ T5252] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.214278][ T5252] Call trace: [ 76.214763][ T5252] dump_backtrace+0x0/0x43c [ 76.215421][ T5252] show_stack+0x2c/0x3c [ 76.216016][ T5252] __dump_stack+0x30/0x40 [ 76.216642][ T5252] dump_stack_lvl+0xf8/0x160 [ 76.217270][ T5252] dump_stack+0x1c/0x5c [ 76.217854][ T5252] should_fail+0x3c0/0x51c [ 76.218496][ T5252] __should_failslab+0xbc/0x10c [ 76.219219][ T5252] should_failslab+0x10/0x28 [ 76.219857][ T5252] slab_pre_alloc_hook+0x64/0xec [ 76.220537][ T5252] kmem_cache_alloc_trace+0x98/0x3fc [ 76.221270][ T5252] btrfs_delete_delayed_dir_index+0x220/0x550 [ 76.222119][ T5252] __btrfs_unlink_inode+0x34c/0xb00 [ 76.222820][ T5252] btrfs_unlink+0x108/0x258 [ 76.223492][ T5252] vfs_unlink+0x2e0/0x4f4 [ 76.224097][ T5252] do_unlinkat+0x31c/0x600 [ 76.224732][ T5252] __arm64_sys_unlinkat+0xe0/0xfc [ 76.225466][ T5252] invoke_syscall+0x98/0x2b8 [ 76.226168][ T5252] el0_svc_common+0x138/0x258 [ 76.226843][ T5252] do_el0_svc+0x58/0x14c [ 76.227485][ T5252] el0_svc+0x78/0x1e0 [ 76.228083][ T5252] el0t_64_sync_handler+0xcc/0xe4 [ 76.228806][ T5252] el0t_64_sync+0x1a0/0x1a4 [ 76.229939][ T5252] ------------[ cut here ]------------ [ 76.230798][ T5252] WARNING: CPU: 1 PID: 5252 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 76.232073][ T5252] Modules linked in: [ 76.232678][ T5252] CPU: 1 PID: 5252 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 76.233955][ T5252] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.235368][ T5252] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.236452][ T5252] pc : __btrfs_unlink_inode+0x908/0xb00 [ 76.237213][ T5252] lr : __btrfs_unlink_inode+0x908/0xb00 [ 76.237982][ T5252] sp : ffff800021487a60 [ 76.238608][ T5252] x29: ffff800021487b10 x28: ffff0000d5f8a000 x27: ffff0000ed18d410 [ 76.239724][ T5252] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d99d64d0 [ 76.240994][ T5252] x23: 1ffff00004290f54 x22: dfff800000000000 x21: ffff0000ed1dbae0 [ 76.242119][ T5252] x20: ffff0000de24baa8 x19: 1fffe0001bc49755 x18: 0000000000000001 [ 76.243290][ T5252] x17: 0000000000000000 x16: ffff800008302168 x15: 00000000ffffffff [ 76.244484][ T5252] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 76.245644][ T5252] x11: 0000000000000000 x10: 0000000000000000 x9 : 6b6e71da3774b600 [ 76.246731][ T5252] x8 : 6b6e71da3774b600 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.247866][ T5252] x5 : ffff800021487358 x4 : ffff80001426f520 x3 : ffff800008302278 [ 76.248993][ T5252] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.250148][ T5252] Call trace: [ 76.250657][ T5252] __btrfs_unlink_inode+0x908/0xb00 [ 76.251406][ T5252] btrfs_unlink+0x108/0x258 [ 76.252096][ T5252] vfs_unlink+0x2e0/0x4f4 [ 76.252758][ T5252] do_unlinkat+0x31c/0x600 [ 76.253437][ T5252] __arm64_sys_unlinkat+0xe0/0xfc [ 76.254159][ T5252] invoke_syscall+0x98/0x2b8 [ 76.254833][ T5252] el0_svc_common+0x138/0x258 [ 76.255522][ T5252] do_el0_svc+0x58/0x14c [ 76.256165][ T5252] el0_svc+0x78/0x1e0 [ 76.256728][ T5252] el0t_64_sync_handler+0xcc/0xe4 [ 76.257425][ T5252] el0t_64_sync+0x1a0/0x1a4 [ 76.258072][ T5252] irq event stamp: 79100 [ 76.258659][ T5252] hardirqs last enabled at (79099): [] __up_console_sem+0xb4/0x100 [ 76.260006][ T5252] hardirqs last disabled at (79100): [] el1_dbg+0x24/0x80 [ 76.261197][ T5252] softirqs last enabled at (79080): [] handle_softirqs+0xa4c/0xbf0 [ 76.262512][ T5252] softirqs last disabled at (79061): [] __irq_exit_rcu+0x240/0x440 [ 76.263852][ T5252] ---[ end trace 2689470f4b4bb184 ]--- [ 76.265022][ T5252] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 76.266442][ T5252] BTRFS info (device loop0): forced readonly [ 76.402059][ T5274] loop0: detected capacity change from 0 to 32768 [ 76.507847][ T5274] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.25 (5274) [ 76.513805][ T5274] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.515124][ T5274] BTRFS info (device loop0): using free space tree [ 76.516128][ T5274] BTRFS info (device loop0): has skinny extents [ 76.526888][ T5274] BTRFS info (device loop0): enabling ssd optimizations [ 76.530905][ T5274] FAULT_INJECTION: forcing a failure. [ 76.530905][ T5274] name failslab, interval 1, probability 0, space 0, times 0 [ 76.532783][ T5274] CPU: 1 PID: 5274 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 76.534031][ T5274] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.535412][ T5274] Call trace: [ 76.535998][ T5274] dump_backtrace+0x0/0x43c [ 76.536610][ T5274] show_stack+0x2c/0x3c [ 76.537271][ T5274] __dump_stack+0x30/0x40 [ 76.537872][ T5274] dump_stack_lvl+0xf8/0x160 [ 76.538552][ T5274] dump_stack+0x1c/0x5c [ 76.539163][ T5274] should_fail+0x3c0/0x51c [ 76.539759][ T5274] __should_failslab+0xbc/0x10c [ 76.540418][ T5274] should_failslab+0x10/0x28 [ 76.541100][ T5274] slab_pre_alloc_hook+0x64/0xec [ 76.541796][ T5274] kmem_cache_alloc_trace+0x98/0x3fc [ 76.542568][ T5274] btrfs_delete_delayed_dir_index+0x220/0x550 [ 76.543421][ T5274] __btrfs_unlink_inode+0x34c/0xb00 [ 76.544179][ T5274] btrfs_unlink+0x108/0x258 [ 76.544793][ T5274] vfs_unlink+0x2e0/0x4f4 [ 76.545435][ T5274] do_unlinkat+0x31c/0x600 [ 76.546017][ T5274] __arm64_sys_unlinkat+0xe0/0xfc [ 76.546693][ T5274] invoke_syscall+0x98/0x2b8 [ 76.547333][ T5274] el0_svc_common+0x138/0x258 [ 76.548019][ T5274] do_el0_svc+0x58/0x14c [ 76.548637][ T5274] el0_svc+0x78/0x1e0 [ 76.549167][ T5274] el0t_64_sync_handler+0xcc/0xe4 [ 76.549814][ T5274] el0t_64_sync+0x1a0/0x1a4 [ 76.552196][ T5274] ------------[ cut here ]------------ [ 76.553095][ T5274] WARNING: CPU: 1 PID: 5274 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 76.554306][ T5274] Modules linked in: [ 76.554815][ T5274] CPU: 1 PID: 5274 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 76.556092][ T5274] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.557469][ T5274] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.558622][ T5274] pc : __btrfs_unlink_inode+0x908/0xb00 [ 76.559432][ T5274] lr : __btrfs_unlink_inode+0x908/0xb00 [ 76.560199][ T5274] sp : ffff8000214f7a60 [ 76.560811][ T5274] x29: ffff8000214f7b10 x28: ffff0000d7340000 x27: ffff0000ed18d810 [ 76.561929][ T5274] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d4bad4d0 [ 76.563090][ T5274] x23: 1ffff0000429ef54 x22: dfff800000000000 x21: ffff0000ed1de220 [ 76.564278][ T5274] x20: ffff0000de24bc08 x19: 1fffe0001bc49781 x18: 0000000000000001 [ 76.565442][ T5274] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 76.566626][ T5274] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 76.567809][ T5274] x11: 0000000000000000 x10: 0000000000000000 x9 : 998a94fdbd45fa00 [ 76.569023][ T5274] x8 : 998a94fdbd45fa00 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.570224][ T5274] x5 : ffff8000214f7358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 76.571437][ T5274] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.572681][ T5274] Call trace: [ 76.573167][ T5274] __btrfs_unlink_inode+0x908/0xb00 [ 76.573924][ T5274] btrfs_unlink+0x108/0x258 [ 76.574626][ T5274] vfs_unlink+0x2e0/0x4f4 [ 76.575239][ T5274] do_unlinkat+0x31c/0x600 [ 76.575883][ T5274] __arm64_sys_unlinkat+0xe0/0xfc [ 76.576589][ T5274] invoke_syscall+0x98/0x2b8 [ 76.577274][ T5274] el0_svc_common+0x138/0x258 [ 76.577933][ T5274] do_el0_svc+0x58/0x14c [ 76.578526][ T5274] el0_svc+0x78/0x1e0 [ 76.579089][ T5274] el0t_64_sync_handler+0xcc/0xe4 [ 76.579824][ T5274] el0t_64_sync+0x1a0/0x1a4 [ 76.580489][ T5274] irq event stamp: 79752 [ 76.581078][ T5274] hardirqs last enabled at (79751): [] __up_console_sem+0xb4/0x100 [ 76.582310][ T5274] hardirqs last disabled at (79752): [] el1_dbg+0x24/0x80 [ 76.583513][ T5274] softirqs last enabled at (79732): [] handle_softirqs+0xa4c/0xbf0 [ 76.584835][ T5274] softirqs last disabled at (79689): [] __irq_exit_rcu+0x240/0x440 [ 76.586147][ T5274] ---[ end trace 2689470f4b4bb185 ]--- [ 76.590320][ T5274] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 76.591607][ T5274] BTRFS info (device loop0): forced readonly [ 76.728448][ T4138] Bluetooth: hci0: command 0x041b tx timeout [ 76.778111][ T5296] loop0: detected capacity change from 0 to 32768 [ 76.819149][ T5296] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.26 (5296) [ 76.822079][ T5296] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.823473][ T5296] BTRFS info (device loop0): using free space tree [ 76.824428][ T5296] BTRFS info (device loop0): has skinny extents [ 76.847202][ T5296] BTRFS info (device loop0): enabling ssd optimizations [ 76.851255][ T5296] FAULT_INJECTION: forcing a failure. [ 76.851255][ T5296] name failslab, interval 1, probability 0, space 0, times 0 [ 76.853045][ T5296] CPU: 1 PID: 5296 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 76.854206][ T5296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.855652][ T5296] Call trace: [ 76.856093][ T5296] dump_backtrace+0x0/0x43c [ 76.856735][ T5296] show_stack+0x2c/0x3c [ 76.857313][ T5296] __dump_stack+0x30/0x40 [ 76.857905][ T5296] dump_stack_lvl+0xf8/0x160 [ 76.858545][ T5296] dump_stack+0x1c/0x5c [ 76.859161][ T5296] should_fail+0x3c0/0x51c [ 76.859745][ T5296] __should_failslab+0xbc/0x10c [ 76.860445][ T5296] should_failslab+0x10/0x28 [ 76.861196][ T5296] slab_pre_alloc_hook+0x64/0xec [ 76.861889][ T5296] kmem_cache_alloc_trace+0x98/0x3fc [ 76.862642][ T5296] btrfs_delete_delayed_dir_index+0x220/0x550 [ 76.863498][ T5296] __btrfs_unlink_inode+0x34c/0xb00 [ 76.864229][ T5296] btrfs_unlink+0x108/0x258 [ 76.864813][ T5296] vfs_unlink+0x2e0/0x4f4 [ 76.865417][ T5296] do_unlinkat+0x31c/0x600 [ 76.866024][ T5296] __arm64_sys_unlinkat+0xe0/0xfc [ 76.866728][ T5296] invoke_syscall+0x98/0x2b8 [ 76.867406][ T5296] el0_svc_common+0x138/0x258 [ 76.868031][ T5296] do_el0_svc+0x58/0x14c [ 76.868628][ T5296] el0_svc+0x78/0x1e0 [ 76.869192][ T5296] el0t_64_sync_handler+0xcc/0xe4 [ 76.869896][ T5296] el0t_64_sync+0x1a0/0x1a4 [ 76.872138][ T5296] ------------[ cut here ]------------ [ 76.873034][ T5296] WARNING: CPU: 1 PID: 5296 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 76.874429][ T5296] Modules linked in: [ 76.874993][ T5296] CPU: 1 PID: 5296 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 76.876274][ T5296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.877744][ T5296] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.878949][ T5296] pc : __btrfs_unlink_inode+0x908/0xb00 [ 76.879815][ T5296] lr : __btrfs_unlink_inode+0x908/0xb00 [ 76.880660][ T5296] sp : ffff800021707a60 [ 76.881277][ T5296] x29: ffff800021707b10 x28: ffff0000cefec000 x27: ffff0000ed18dc10 [ 76.882452][ T5296] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d247b630 [ 76.883613][ T5296] x23: 1ffff000042e0f54 x22: dfff800000000000 x21: ffff0000ed1189d0 [ 76.884808][ T5296] x20: ffff0000de24bd68 x19: 1fffe0001bc497ad x18: 0000000000000001 [ 76.885985][ T5296] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 76.887144][ T5296] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 76.888327][ T5296] x11: 0000000000000000 x10: 0000000000000000 x9 : b29729410bbff400 [ 76.889555][ T5296] x8 : b29729410bbff400 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.890618][ T5296] x5 : ffff800021707358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 76.891815][ T5296] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.892976][ T5296] Call trace: [ 76.893429][ T5296] __btrfs_unlink_inode+0x908/0xb00 [ 76.894150][ T5296] btrfs_unlink+0x108/0x258 [ 76.894775][ T5296] vfs_unlink+0x2e0/0x4f4 [ 76.895378][ T5296] do_unlinkat+0x31c/0x600 [ 76.895960][ T5296] __arm64_sys_unlinkat+0xe0/0xfc [ 76.896675][ T5296] invoke_syscall+0x98/0x2b8 [ 76.897331][ T5296] el0_svc_common+0x138/0x258 [ 76.897990][ T5296] do_el0_svc+0x58/0x14c [ 76.898642][ T5296] el0_svc+0x78/0x1e0 [ 76.899183][ T5296] el0t_64_sync_handler+0xcc/0xe4 [ 76.899828][ T5296] el0t_64_sync+0x1a0/0x1a4 [ 76.900460][ T5296] irq event stamp: 79236 [ 76.901052][ T5296] hardirqs last enabled at (79235): [] __up_console_sem+0xb4/0x100 [ 76.902325][ T5296] hardirqs last disabled at (79236): [] el1_dbg+0x24/0x80 [ 76.903611][ T5296] softirqs last enabled at (79216): [] handle_softirqs+0xa4c/0xbf0 [ 76.904941][ T5296] softirqs last disabled at (79185): [] __irq_exit_rcu+0x240/0x440 [ 76.906475][ T5296] ---[ end trace 2689470f4b4bb186 ]--- [ 76.910772][ T5296] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 76.912103][ T5296] BTRFS info (device loop0): forced readonly [ 77.131656][ T5318] loop0: detected capacity change from 0 to 32768 [ 77.137856][ T5318] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.27 (5318) [ 77.149055][ T5318] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.150422][ T5318] BTRFS info (device loop0): using free space tree [ 77.151347][ T5318] BTRFS info (device loop0): has skinny extents [ 77.226781][ T5318] BTRFS info (device loop0): enabling ssd optimizations [ 77.236850][ T5318] FAULT_INJECTION: forcing a failure. [ 77.236850][ T5318] name failslab, interval 1, probability 0, space 0, times 0 [ 77.238828][ T5318] CPU: 0 PID: 5318 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 77.240033][ T5318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.241430][ T5318] Call trace: [ 77.241879][ T5318] dump_backtrace+0x0/0x43c [ 77.242529][ T5318] show_stack+0x2c/0x3c [ 77.243095][ T5318] __dump_stack+0x30/0x40 [ 77.243715][ T5318] dump_stack_lvl+0xf8/0x160 [ 77.244366][ T5318] dump_stack+0x1c/0x5c [ 77.244945][ T5318] should_fail+0x3c0/0x51c [ 77.245569][ T5318] __should_failslab+0xbc/0x10c [ 77.246224][ T5318] should_failslab+0x10/0x28 [ 77.246902][ T5318] slab_pre_alloc_hook+0x64/0xec [ 77.247643][ T5318] kmem_cache_alloc_trace+0x98/0x3fc [ 77.248414][ T5318] btrfs_delete_delayed_dir_index+0x220/0x550 [ 77.249330][ T5318] __btrfs_unlink_inode+0x34c/0xb00 [ 77.250047][ T5318] btrfs_unlink+0x108/0x258 [ 77.250741][ T5318] vfs_unlink+0x2e0/0x4f4 [ 77.251355][ T5318] do_unlinkat+0x31c/0x600 [ 77.251981][ T5318] __arm64_sys_unlinkat+0xe0/0xfc [ 77.252667][ T5318] invoke_syscall+0x98/0x2b8 [ 77.253299][ T5318] el0_svc_common+0x138/0x258 [ 77.253931][ T5318] do_el0_svc+0x58/0x14c [ 77.254543][ T5318] el0_svc+0x78/0x1e0 [ 77.255073][ T5318] el0t_64_sync_handler+0xcc/0xe4 [ 77.255768][ T5318] el0t_64_sync+0x1a0/0x1a4 [ 77.256868][ T5318] ------------[ cut here ]------------ [ 77.257853][ T5318] WARNING: CPU: 0 PID: 5318 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 77.259242][ T5318] Modules linked in: [ 77.259841][ T5318] CPU: 0 PID: 5318 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 77.261058][ T5318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.262514][ T5318] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.263611][ T5318] pc : __btrfs_unlink_inode+0x908/0xb00 [ 77.264409][ T5318] lr : __btrfs_unlink_inode+0x908/0xb00 [ 77.265230][ T5318] sp : ffff8000215e7a60 [ 77.265796][ T5318] x29: ffff8000215e7b10 x28: ffff0000c1ab0000 x27: ffff0000ed01d010 [ 77.266895][ T5318] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c195f8f0 [ 77.268083][ T5318] x23: 1ffff000042bcf54 x22: dfff800000000000 x21: ffff0000ed144e80 [ 77.269331][ T5318] x20: ffff0000de1d9948 x19: 1fffe0001bc3b329 x18: 0000000000000001 [ 77.270566][ T5318] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 77.271681][ T5318] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 77.272899][ T5318] x11: 0000000000000000 x10: 0000000000000000 x9 : 66ba6e8b4cf1c900 [ 77.274036][ T5318] x8 : 66ba6e8b4cf1c900 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.275151][ T5318] x5 : ffff8000215e7358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 77.276388][ T5318] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.277549][ T5318] Call trace: [ 77.278035][ T5318] __btrfs_unlink_inode+0x908/0xb00 [ 77.278784][ T5318] btrfs_unlink+0x108/0x258 [ 77.279440][ T5318] vfs_unlink+0x2e0/0x4f4 [ 77.280022][ T5318] do_unlinkat+0x31c/0x600 [ 77.280642][ T5318] __arm64_sys_unlinkat+0xe0/0xfc [ 77.281353][ T5318] invoke_syscall+0x98/0x2b8 [ 77.282013][ T5318] el0_svc_common+0x138/0x258 [ 77.282684][ T5318] do_el0_svc+0x58/0x14c [ 77.283264][ T5318] el0_svc+0x78/0x1e0 [ 77.283857][ T5318] el0t_64_sync_handler+0xcc/0xe4 [ 77.284662][ T5318] el0t_64_sync+0x1a0/0x1a4 [ 77.285335][ T5318] irq event stamp: 79862 [ 77.285900][ T5318] hardirqs last enabled at (79861): [] __up_console_sem+0xb4/0x100 [ 77.287248][ T5318] hardirqs last disabled at (79862): [] el1_dbg+0x24/0x80 [ 77.288489][ T5318] softirqs last enabled at (79842): [] handle_softirqs+0xa4c/0xbf0 [ 77.289841][ T5318] softirqs last disabled at (79827): [] __irq_exit_rcu+0x240/0x440 [ 77.291194][ T5318] ---[ end trace 2689470f4b4bb187 ]--- [ 77.318045][ T5318] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 77.319498][ T5318] BTRFS info (device loop0): forced readonly [ 77.452268][ T5340] loop0: detected capacity change from 0 to 32768 [ 77.499068][ T5340] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.28 (5340) [ 77.603704][ T5340] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.605147][ T5340] BTRFS info (device loop0): using free space tree [ 77.606123][ T5340] BTRFS info (device loop0): has skinny extents [ 77.619514][ T5340] BTRFS info (device loop0): enabling ssd optimizations [ 77.630523][ T5340] FAULT_INJECTION: forcing a failure. [ 77.630523][ T5340] name failslab, interval 1, probability 0, space 0, times 0 [ 77.632505][ T5340] CPU: 1 PID: 5340 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 77.633795][ T5340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.635191][ T5340] Call trace: [ 77.635647][ T5340] dump_backtrace+0x0/0x43c [ 77.636342][ T5340] show_stack+0x2c/0x3c [ 77.636929][ T5340] __dump_stack+0x30/0x40 [ 77.637640][ T5340] dump_stack_lvl+0xf8/0x160 [ 77.638310][ T5340] dump_stack+0x1c/0x5c [ 77.638979][ T5340] should_fail+0x3c0/0x51c [ 77.639557][ T5340] __should_failslab+0xbc/0x10c [ 77.640287][ T5340] should_failslab+0x10/0x28 [ 77.640958][ T5340] slab_pre_alloc_hook+0x64/0xec [ 77.641614][ T5340] kmem_cache_alloc_trace+0x98/0x3fc [ 77.642371][ T5340] btrfs_delete_delayed_dir_index+0x220/0x550 [ 77.643332][ T5340] __btrfs_unlink_inode+0x34c/0xb00 [ 77.644037][ T5340] btrfs_unlink+0x108/0x258 [ 77.644666][ T5340] vfs_unlink+0x2e0/0x4f4 [ 77.645305][ T5340] do_unlinkat+0x31c/0x600 [ 77.645925][ T5340] __arm64_sys_unlinkat+0xe0/0xfc [ 77.646653][ T5340] invoke_syscall+0x98/0x2b8 [ 77.647337][ T5340] el0_svc_common+0x138/0x258 [ 77.647968][ T5340] do_el0_svc+0x58/0x14c [ 77.648593][ T5340] el0_svc+0x78/0x1e0 [ 77.649141][ T5340] el0t_64_sync_handler+0xcc/0xe4 [ 77.649861][ T5340] el0t_64_sync+0x1a0/0x1a4 [ 77.650982][ T5340] ------------[ cut here ]------------ [ 77.651876][ T5340] WARNING: CPU: 1 PID: 5340 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 77.653096][ T5340] Modules linked in: [ 77.653615][ T5340] CPU: 1 PID: 5340 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 77.654820][ T5340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.656217][ T5340] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.657354][ T5340] pc : __btrfs_unlink_inode+0x908/0xb00 [ 77.658119][ T5340] lr : __btrfs_unlink_inode+0x908/0xb00 [ 77.658960][ T5340] sp : ffff800021927a60 [ 77.659498][ T5340] x29: ffff800021927b10 x28: ffff0000ebcac000 x27: ffff0000ed01d410 [ 77.660665][ T5340] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d3c6c8f0 [ 77.661778][ T5340] x23: 1ffff00004324f54 x22: dfff800000000000 x21: ffff0000ed146bf0 [ 77.662922][ T5340] x20: ffff0000de24b268 x19: 1fffe0001bc4964d x18: 0000000000000001 [ 77.664177][ T5340] x17: 0000000000000000 x16: ffff800008302168 x15: 00000000ffffffff [ 77.665374][ T5340] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 77.666562][ T5340] x11: 0000000000000000 x10: 0000000000000000 x9 : d4fde05f2da25b00 [ 77.667722][ T5340] x8 : d4fde05f2da25b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.668968][ T5340] x5 : ffff800021927358 x4 : ffff80001426f520 x3 : ffff800008302278 [ 77.670165][ T5340] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.671323][ T5340] Call trace: [ 77.671809][ T5340] __btrfs_unlink_inode+0x908/0xb00 [ 77.672526][ T5340] btrfs_unlink+0x108/0x258 [ 77.673154][ T5340] vfs_unlink+0x2e0/0x4f4 [ 77.673735][ T5340] do_unlinkat+0x31c/0x600 [ 77.674379][ T5340] __arm64_sys_unlinkat+0xe0/0xfc [ 77.675124][ T5340] invoke_syscall+0x98/0x2b8 [ 77.675739][ T5340] el0_svc_common+0x138/0x258 [ 77.676362][ T5340] do_el0_svc+0x58/0x14c [ 77.676900][ T5340] el0_svc+0x78/0x1e0 [ 77.677469][ T5340] el0t_64_sync_handler+0xcc/0xe4 [ 77.678146][ T5340] el0t_64_sync+0x1a0/0x1a4 [ 77.678847][ T5340] irq event stamp: 79242 [ 77.679449][ T5340] hardirqs last enabled at (79241): [] __up_console_sem+0xb4/0x100 [ 77.680769][ T5340] hardirqs last disabled at (79242): [] el1_dbg+0x24/0x80 [ 77.681984][ T5340] softirqs last enabled at (79222): [] handle_softirqs+0xa4c/0xbf0 [ 77.683365][ T5340] softirqs last disabled at (79157): [] __irq_exit_rcu+0x240/0x440 [ 77.684744][ T5340] ---[ end trace 2689470f4b4bb188 ]--- [ 77.686000][ T5340] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 77.687380][ T5340] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:17 executed programs: 16 [ 77.845699][ T5362] loop0: detected capacity change from 0 to 32768 [ 77.920112][ T5362] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.29 (5362) [ 77.923247][ T5362] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.924515][ T5362] BTRFS info (device loop0): using free space tree [ 77.925492][ T5362] BTRFS info (device loop0): has skinny extents [ 77.942550][ T5362] BTRFS info (device loop0): enabling ssd optimizations [ 77.946400][ T5362] FAULT_INJECTION: forcing a failure. [ 77.946400][ T5362] name failslab, interval 1, probability 0, space 0, times 0 [ 77.948505][ T5362] CPU: 1 PID: 5362 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 77.949722][ T5362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.951023][ T5362] Call trace: [ 77.951478][ T5362] dump_backtrace+0x0/0x43c [ 77.952194][ T5362] show_stack+0x2c/0x3c [ 77.952808][ T5362] __dump_stack+0x30/0x40 [ 77.953444][ T5362] dump_stack_lvl+0xf8/0x160 [ 77.954089][ T5362] dump_stack+0x1c/0x5c [ 77.954620][ T5362] should_fail+0x3c0/0x51c [ 77.955251][ T5362] __should_failslab+0xbc/0x10c [ 77.955943][ T5362] should_failslab+0x10/0x28 [ 77.956566][ T5362] slab_pre_alloc_hook+0x64/0xec [ 77.957307][ T5362] kmem_cache_alloc_trace+0x98/0x3fc [ 77.958159][ T5362] btrfs_delete_delayed_dir_index+0x220/0x550 [ 77.959015][ T5362] __btrfs_unlink_inode+0x34c/0xb00 [ 77.959786][ T5362] btrfs_unlink+0x108/0x258 [ 77.960418][ T5362] vfs_unlink+0x2e0/0x4f4 [ 77.961100][ T5362] do_unlinkat+0x31c/0x600 [ 77.961708][ T5362] __arm64_sys_unlinkat+0xe0/0xfc [ 77.962382][ T5362] invoke_syscall+0x98/0x2b8 [ 77.963039][ T5362] el0_svc_common+0x138/0x258 [ 77.963714][ T5362] do_el0_svc+0x58/0x14c [ 77.964377][ T5362] el0_svc+0x78/0x1e0 [ 77.964962][ T5362] el0t_64_sync_handler+0xcc/0xe4 [ 77.965679][ T5362] el0t_64_sync+0x1a0/0x1a4 [ 77.966497][ T5362] ------------[ cut here ]------------ [ 77.967359][ T5362] WARNING: CPU: 1 PID: 5362 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 77.968655][ T5362] Modules linked in: [ 77.969218][ T5362] CPU: 1 PID: 5362 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 77.970412][ T5362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.971771][ T5362] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.972862][ T5362] pc : __btrfs_unlink_inode+0x908/0xb00 [ 77.973694][ T5362] lr : __btrfs_unlink_inode+0x908/0xb00 [ 77.974469][ T5362] sp : ffff800021a07a60 [ 77.975084][ T5362] x29: ffff800021a07b10 x28: ffff0000dc0a2000 x27: ffff0000ed18c010 [ 77.976223][ T5362] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d7f1c8f0 [ 77.977398][ T5362] x23: 1ffff00004340f54 x22: dfff800000000000 x21: ffff0000ed11b110 [ 77.978496][ T5362] x20: ffff0000de24b108 x19: 1fffe0001bc49621 x18: 0000000000000001 [ 77.979704][ T5362] x17: 0000000000000000 x16: ffff800008302168 x15: 00000000ffffffff [ 77.980922][ T5362] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 77.982184][ T5362] x11: 0000000000000000 x10: 0000000000000000 x9 : 8ad919b7385f7700 [ 77.983364][ T5362] x8 : 8ad919b7385f7700 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.984492][ T5362] x5 : ffff800021a07358 x4 : ffff80001426f520 x3 : ffff800008302278 [ 77.985641][ T5362] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.986708][ T5362] Call trace: [ 77.987215][ T5362] __btrfs_unlink_inode+0x908/0xb00 [ 77.987958][ T5362] btrfs_unlink+0x108/0x258 [ 77.988561][ T5362] vfs_unlink+0x2e0/0x4f4 [ 77.989149][ T5362] do_unlinkat+0x31c/0x600 [ 77.989817][ T5362] __arm64_sys_unlinkat+0xe0/0xfc [ 77.990538][ T5362] invoke_syscall+0x98/0x2b8 [ 77.991249][ T5362] el0_svc_common+0x138/0x258 [ 77.991862][ T5362] do_el0_svc+0x58/0x14c [ 77.992444][ T5362] el0_svc+0x78/0x1e0 [ 77.992980][ T5362] el0t_64_sync_handler+0xcc/0xe4 [ 77.993773][ T5362] el0t_64_sync+0x1a0/0x1a4 [ 77.994441][ T5362] irq event stamp: 79096 [ 77.995061][ T5362] hardirqs last enabled at (79095): [] __up_console_sem+0xb4/0x100 [ 77.996424][ T5362] hardirqs last disabled at (79096): [] el1_dbg+0x24/0x80 [ 77.997674][ T5362] softirqs last enabled at (79080): [] handle_softirqs+0xa4c/0xbf0 [ 77.998997][ T5362] softirqs last disabled at (78999): [] __irq_exit_rcu+0x240/0x440 [ 78.000290][ T5362] ---[ end trace 2689470f4b4bb189 ]--- [ 78.001207][ T5362] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 78.002603][ T5362] BTRFS info (device loop0): forced readonly [ 78.132417][ T5384] loop0: detected capacity change from 0 to 32768 [ 78.180850][ T5384] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.30 (5384) [ 78.231232][ T5384] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.232499][ T5384] BTRFS info (device loop0): using free space tree [ 78.233426][ T5384] BTRFS info (device loop0): has skinny extents [ 78.240971][ T5384] BTRFS info (device loop0): enabling ssd optimizations [ 78.244769][ T5384] FAULT_INJECTION: forcing a failure. [ 78.244769][ T5384] name failslab, interval 1, probability 0, space 0, times 0 [ 78.246680][ T5384] CPU: 1 PID: 5384 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 78.247937][ T5384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.249444][ T5384] Call trace: [ 78.249924][ T5384] dump_backtrace+0x0/0x43c [ 78.250610][ T5384] show_stack+0x2c/0x3c [ 78.251174][ T5384] __dump_stack+0x30/0x40 [ 78.251780][ T5384] dump_stack_lvl+0xf8/0x160 [ 78.252389][ T5384] dump_stack+0x1c/0x5c [ 78.252996][ T5384] should_fail+0x3c0/0x51c [ 78.253633][ T5384] __should_failslab+0xbc/0x10c [ 78.254390][ T5384] should_failslab+0x10/0x28 [ 78.255160][ T5384] slab_pre_alloc_hook+0x64/0xec [ 78.256056][ T5384] kmem_cache_alloc_trace+0x98/0x3fc [ 78.256902][ T5384] btrfs_delete_delayed_dir_index+0x220/0x550 [ 78.257815][ T5384] __btrfs_unlink_inode+0x34c/0xb00 [ 78.258590][ T5384] btrfs_unlink+0x108/0x258 [ 78.259204][ T5384] vfs_unlink+0x2e0/0x4f4 [ 78.259803][ T5384] do_unlinkat+0x31c/0x600 [ 78.260554][ T5384] __arm64_sys_unlinkat+0xe0/0xfc [ 78.261404][ T5384] invoke_syscall+0x98/0x2b8 [ 78.262148][ T5384] el0_svc_common+0x138/0x258 [ 78.262956][ T5384] do_el0_svc+0x58/0x14c [ 78.263645][ T5384] el0_svc+0x78/0x1e0 [ 78.264226][ T5384] el0t_64_sync_handler+0xcc/0xe4 [ 78.264972][ T5384] el0t_64_sync+0x1a0/0x1a4 [ 78.266865][ T5384] ------------[ cut here ]------------ [ 78.267831][ T5384] WARNING: CPU: 1 PID: 5384 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 78.269199][ T5384] Modules linked in: [ 78.269791][ T5384] CPU: 1 PID: 5384 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 78.270992][ T5384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.272393][ T5384] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.273515][ T5384] pc : __btrfs_unlink_inode+0x908/0xb00 [ 78.274289][ T5384] lr : __btrfs_unlink_inode+0x908/0xb00 [ 78.275121][ T5384] sp : ffff800021a07a60 [ 78.275772][ T5384] x29: ffff800021a07b10 x28: ffff0000cd8ce000 x27: ffff0000ed18e010 [ 78.276923][ T5384] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000dc28c9a0 [ 78.278113][ T5384] x23: 1ffff00004340f54 x22: dfff800000000000 x21: ffff0000ed11d850 [ 78.279264][ T5384] x20: ffff0000de24bec8 x19: 1fffe0001bc497d9 x18: 0000000000000001 [ 78.280417][ T5384] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 78.281587][ T5384] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 78.282821][ T5384] x11: 0000000000000000 x10: 0000000000000000 x9 : b540b7acad77b700 [ 78.283969][ T5384] x8 : b540b7acad77b700 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.285162][ T5384] x5 : ffff800021a07358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 78.286362][ T5384] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.287533][ T5384] Call trace: [ 78.287984][ T5384] __btrfs_unlink_inode+0x908/0xb00 [ 78.288699][ T5384] btrfs_unlink+0x108/0x258 [ 78.289327][ T5384] vfs_unlink+0x2e0/0x4f4 [ 78.290035][ T5384] do_unlinkat+0x31c/0x600 [ 78.290732][ T5384] __arm64_sys_unlinkat+0xe0/0xfc [ 78.291494][ T5384] invoke_syscall+0x98/0x2b8 [ 78.292156][ T5384] el0_svc_common+0x138/0x258 [ 78.292850][ T5384] do_el0_svc+0x58/0x14c [ 78.293456][ T5384] el0_svc+0x78/0x1e0 [ 78.294049][ T5384] el0t_64_sync_handler+0xcc/0xe4 [ 78.294739][ T5384] el0t_64_sync+0x1a0/0x1a4 [ 78.295415][ T5384] irq event stamp: 79150 [ 78.296023][ T5384] hardirqs last enabled at (79149): [] __up_console_sem+0xb4/0x100 [ 78.297397][ T5384] hardirqs last disabled at (79150): [] el1_dbg+0x24/0x80 [ 78.298692][ T5384] softirqs last enabled at (79130): [] handle_softirqs+0xa4c/0xbf0 [ 78.300061][ T5384] softirqs last disabled at (79025): [] __irq_exit_rcu+0x240/0x440 [ 78.301430][ T5384] ---[ end trace 2689470f4b4bb18a ]--- [ 78.303290][ T5384] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 78.304674][ T5384] BTRFS info (device loop0): forced readonly [ 78.443560][ T5406] loop0: detected capacity change from 0 to 32768 [ 78.492271][ T5406] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.31 (5406) [ 78.496241][ T5406] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.497633][ T5406] BTRFS info (device loop0): using free space tree [ 78.498878][ T5406] BTRFS info (device loop0): has skinny extents [ 78.505607][ T5406] BTRFS info (device loop0): enabling ssd optimizations [ 78.509505][ T5406] FAULT_INJECTION: forcing a failure. [ 78.509505][ T5406] name failslab, interval 1, probability 0, space 0, times 0 [ 78.511404][ T5406] CPU: 1 PID: 5406 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 78.512673][ T5406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.514116][ T5406] Call trace: [ 78.514651][ T5406] dump_backtrace+0x0/0x43c [ 78.515320][ T5406] show_stack+0x2c/0x3c [ 78.515890][ T5406] __dump_stack+0x30/0x40 [ 78.516468][ T5406] dump_stack_lvl+0xf8/0x160 [ 78.517098][ T5406] dump_stack+0x1c/0x5c [ 78.517666][ T5406] should_fail+0x3c0/0x51c [ 78.518274][ T5406] __should_failslab+0xbc/0x10c [ 78.518962][ T5406] should_failslab+0x10/0x28 [ 78.519623][ T5406] slab_pre_alloc_hook+0x64/0xec [ 78.520316][ T5406] kmem_cache_alloc+0x94/0x3e4 [ 78.520983][ T5406] btrfs_alloc_path+0x5c/0x68 [ 78.521607][ T5406] __btrfs_unlink_inode+0x1d8/0xb00 [ 78.522346][ T5406] btrfs_unlink+0x108/0x258 [ 78.523012][ T5406] vfs_unlink+0x2e0/0x4f4 [ 78.523595][ T5406] do_unlinkat+0x31c/0x600 [ 78.524224][ T5406] __arm64_sys_unlinkat+0xe0/0xfc [ 78.524912][ T5406] invoke_syscall+0x98/0x2b8 [ 78.525550][ T5406] el0_svc_common+0x138/0x258 [ 78.526190][ T5406] do_el0_svc+0x58/0x14c [ 78.526728][ T5406] el0_svc+0x78/0x1e0 [ 78.527299][ T5406] el0t_64_sync_handler+0xcc/0xe4 [ 78.528023][ T5406] el0t_64_sync+0x1a0/0x1a4 [ 78.674687][ T5427] loop0: detected capacity change from 0 to 32768 [ 78.758635][ T5427] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.32 (5427) [ 78.761384][ T5427] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.762755][ T5427] BTRFS info (device loop0): using free space tree [ 78.763921][ T5427] BTRFS info (device loop0): has skinny extents [ 78.777013][ T5427] BTRFS info (device loop0): enabling ssd optimizations [ 78.783749][ T5427] FAULT_INJECTION: forcing a failure. [ 78.783749][ T5427] name failslab, interval 1, probability 0, space 0, times 0 [ 78.785690][ T5427] CPU: 0 PID: 5427 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 78.786880][ T5427] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.788353][ T5427] Call trace: [ 78.788856][ T5427] dump_backtrace+0x0/0x43c [ 78.789469][ T5427] show_stack+0x2c/0x3c [ 78.790057][ T5427] __dump_stack+0x30/0x40 [ 78.790719][ T5427] dump_stack_lvl+0xf8/0x160 [ 78.791361][ T5427] dump_stack+0x1c/0x5c [ 78.791968][ T5427] should_fail+0x3c0/0x51c [ 78.792551][ T5427] __should_failslab+0xbc/0x10c [ 78.793267][ T5427] should_failslab+0x10/0x28 [ 78.793909][ T5427] slab_pre_alloc_hook+0x64/0xec [ 78.794624][ T5427] kmem_cache_alloc_trace+0x98/0x3fc [ 78.795338][ T5427] btrfs_delete_delayed_dir_index+0x220/0x550 [ 78.796281][ T5427] __btrfs_unlink_inode+0x34c/0xb00 [ 78.796988][ T5427] btrfs_unlink+0x108/0x258 [ 78.797648][ T5427] vfs_unlink+0x2e0/0x4f4 [ 78.798274][ T5427] do_unlinkat+0x31c/0x600 [ 78.798886][ T5427] __arm64_sys_unlinkat+0xe0/0xfc [ 78.799543][ T5427] invoke_syscall+0x98/0x2b8 [ 78.800174][ T5427] el0_svc_common+0x138/0x258 [ 78.800859][ T5427] do_el0_svc+0x58/0x14c [ 78.801441][ T5427] el0_svc+0x78/0x1e0 [ 78.801982][ T5427] el0t_64_sync_handler+0xcc/0xe4 [ 78.802691][ T5427] el0t_64_sync+0x1a0/0x1a4 [ 78.806565][ T5427] ------------[ cut here ]------------ [ 78.807488][ T5427] WARNING: CPU: 0 PID: 5427 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 78.807852][ T4137] Bluetooth: hci0: command 0x040f tx timeout [ 78.808761][ T5427] Modules linked in: [ 78.810187][ T5427] CPU: 0 PID: 5427 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 78.811405][ T5427] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.812794][ T5427] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.813826][ T5427] pc : __btrfs_unlink_inode+0x908/0xb00 [ 78.814626][ T5427] lr : __btrfs_unlink_inode+0x908/0xb00 [ 78.815365][ T5427] sp : ffff800021ca7a60 [ 78.815938][ T5427] x29: ffff800021ca7b10 x28: ffff0000ebf38000 x27: ffff0000ed01c810 [ 78.817127][ T5427] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d5c67000 [ 78.818283][ T5427] x23: 1ffff00004394f54 x22: dfff800000000000 x21: ffff0000e27f1d70 [ 78.819448][ T5427] x20: ffff0000de1d91b8 x19: 1fffe0001bc3b237 x18: 0000000000000001 [ 78.820596][ T5427] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 78.821783][ T5427] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 78.822911][ T5427] x11: 0000000000000000 x10: 0000000000000000 x9 : 759a4274dd5b5300 [ 78.824108][ T5427] x8 : 759a4274dd5b5300 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.825318][ T5427] x5 : ffff800021ca7358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 78.826427][ T5427] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.827620][ T5427] Call trace: [ 78.828086][ T5427] __btrfs_unlink_inode+0x908/0xb00 [ 78.828855][ T5427] btrfs_unlink+0x108/0x258 [ 78.829510][ T5427] vfs_unlink+0x2e0/0x4f4 [ 78.830110][ T5427] do_unlinkat+0x31c/0x600 [ 78.830737][ T5427] __arm64_sys_unlinkat+0xe0/0xfc [ 78.831425][ T5427] invoke_syscall+0x98/0x2b8 [ 78.832086][ T5427] el0_svc_common+0x138/0x258 [ 78.832792][ T5427] do_el0_svc+0x58/0x14c [ 78.833364][ T5427] el0_svc+0x78/0x1e0 [ 78.833949][ T5427] el0t_64_sync_handler+0xcc/0xe4 [ 78.834635][ T5427] el0t_64_sync+0x1a0/0x1a4 [ 78.835262][ T5427] irq event stamp: 79046 [ 78.835840][ T5427] hardirqs last enabled at (79045): [] __up_console_sem+0xb4/0x100 [ 78.837205][ T5427] hardirqs last disabled at (79046): [] el1_dbg+0x24/0x80 [ 78.838370][ T5427] softirqs last enabled at (79026): [] handle_softirqs+0xa4c/0xbf0 [ 78.839651][ T5427] softirqs last disabled at (79001): [] __irq_exit_rcu+0x240/0x440 [ 78.840928][ T5427] ---[ end trace 2689470f4b4bb18b ]--- [ 78.842670][ T5427] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 78.844046][ T5427] BTRFS info (device loop0): forced readonly [ 78.982050][ T5449] loop0: detected capacity change from 0 to 32768 [ 79.071861][ T5449] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.33 (5449) [ 79.074774][ T5449] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.076128][ T5449] BTRFS info (device loop0): using free space tree [ 79.077066][ T5449] BTRFS info (device loop0): has skinny extents [ 79.085426][ T5449] BTRFS info (device loop0): enabling ssd optimizations [ 79.090299][ T5449] FAULT_INJECTION: forcing a failure. [ 79.090299][ T5449] name failslab, interval 1, probability 0, space 0, times 0 [ 79.092192][ T5449] CPU: 1 PID: 5449 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 79.093390][ T5449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.094807][ T5449] Call trace: [ 79.095267][ T5449] dump_backtrace+0x0/0x43c [ 79.095910][ T5449] show_stack+0x2c/0x3c [ 79.096540][ T5449] __dump_stack+0x30/0x40 [ 79.097193][ T5449] dump_stack_lvl+0xf8/0x160 [ 79.097818][ T5449] dump_stack+0x1c/0x5c [ 79.098422][ T5449] should_fail+0x3c0/0x51c [ 79.099041][ T5449] __should_failslab+0xbc/0x10c [ 79.099723][ T5449] should_failslab+0x10/0x28 [ 79.100455][ T5449] slab_pre_alloc_hook+0x64/0xec [ 79.101167][ T5449] kmem_cache_alloc_trace+0x98/0x3fc [ 79.101929][ T5449] btrfs_delete_delayed_dir_index+0x220/0x550 [ 79.102780][ T5449] __btrfs_unlink_inode+0x34c/0xb00 [ 79.103560][ T5449] btrfs_unlink+0x108/0x258 [ 79.104248][ T5449] vfs_unlink+0x2e0/0x4f4 [ 79.104871][ T5449] do_unlinkat+0x31c/0x600 [ 79.105485][ T5449] __arm64_sys_unlinkat+0xe0/0xfc [ 79.106212][ T5449] invoke_syscall+0x98/0x2b8 [ 79.106846][ T5449] el0_svc_common+0x138/0x258 [ 79.107560][ T5449] do_el0_svc+0x58/0x14c [ 79.108170][ T5449] el0_svc+0x78/0x1e0 [ 79.108764][ T5449] el0t_64_sync_handler+0xcc/0xe4 [ 79.109474][ T5449] el0t_64_sync+0x1a0/0x1a4 [ 79.111831][ T5449] ------------[ cut here ]------------ [ 79.112778][ T5449] WARNING: CPU: 1 PID: 5449 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 79.114096][ T5449] Modules linked in: [ 79.114643][ T5449] CPU: 1 PID: 5449 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 79.115935][ T5449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.117332][ T5449] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.118476][ T5449] pc : __btrfs_unlink_inode+0x908/0xb00 [ 79.119322][ T5449] lr : __btrfs_unlink_inode+0x908/0xb00 [ 79.120145][ T5449] sp : ffff800021ca7a60 [ 79.120730][ T5449] x29: ffff800021ca7b10 x28: ffff0000c0ca0000 x27: ffff0000ed18c810 [ 79.121876][ T5449] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c8cfe630 [ 79.123046][ T5449] x23: 1ffff00004394f54 x22: dfff800000000000 x21: ffff0000ed1a4e80 [ 79.124229][ T5449] x20: ffff0000de24b3c8 x19: 1fffe0001bc49679 x18: 0000000000000001 [ 79.125364][ T5449] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 79.126418][ T5449] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.127523][ T5449] x11: 0000000000000000 x10: 0000000000000000 x9 : 5de691c2a02f7800 [ 79.128649][ T5449] x8 : 5de691c2a02f7800 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.129836][ T5449] x5 : ffff800021ca7358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 79.131014][ T5449] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.132226][ T5449] Call trace: [ 79.132697][ T5449] __btrfs_unlink_inode+0x908/0xb00 [ 79.133461][ T5449] btrfs_unlink+0x108/0x258 [ 79.134099][ T5449] vfs_unlink+0x2e0/0x4f4 [ 79.134753][ T5449] do_unlinkat+0x31c/0x600 [ 79.135387][ T5449] __arm64_sys_unlinkat+0xe0/0xfc [ 79.136117][ T5449] invoke_syscall+0x98/0x2b8 [ 79.136772][ T5449] el0_svc_common+0x138/0x258 [ 79.137424][ T5449] do_el0_svc+0x58/0x14c [ 79.137998][ T5449] el0_svc+0x78/0x1e0 [ 79.138553][ T5449] el0t_64_sync_handler+0xcc/0xe4 [ 79.139313][ T5449] el0t_64_sync+0x1a0/0x1a4 [ 79.139956][ T5449] irq event stamp: 79006 [ 79.140573][ T5449] hardirqs last enabled at (79005): [] __up_console_sem+0xb4/0x100 [ 79.141937][ T5449] hardirqs last disabled at (79006): [] el1_dbg+0x24/0x80 [ 79.143189][ T5449] softirqs last enabled at (78986): [] handle_softirqs+0xa4c/0xbf0 [ 79.144569][ T5449] softirqs last disabled at (78937): [] __irq_exit_rcu+0x240/0x440 [ 79.145911][ T5449] ---[ end trace 2689470f4b4bb18c ]--- [ 79.147365][ T5449] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 79.149369][ T5449] BTRFS info (device loop0): forced readonly [ 79.281027][ T5471] loop0: detected capacity change from 0 to 32768 [ 79.329052][ T5471] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.34 (5471) [ 79.370122][ T5471] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.371395][ T5471] BTRFS info (device loop0): using free space tree [ 79.372272][ T5471] BTRFS info (device loop0): has skinny extents [ 79.381785][ T5471] BTRFS info (device loop0): enabling ssd optimizations [ 79.386127][ T5471] FAULT_INJECTION: forcing a failure. [ 79.386127][ T5471] name failslab, interval 1, probability 0, space 0, times 0 [ 79.388754][ T5471] CPU: 1 PID: 5471 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 79.390090][ T5471] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.391546][ T5471] Call trace: [ 79.392051][ T5471] dump_backtrace+0x0/0x43c [ 79.392720][ T5471] show_stack+0x2c/0x3c [ 79.393330][ T5471] __dump_stack+0x30/0x40 [ 79.393984][ T5471] dump_stack_lvl+0xf8/0x160 [ 79.394703][ T5471] dump_stack+0x1c/0x5c [ 79.395301][ T5471] should_fail+0x3c0/0x51c [ 79.395974][ T5471] __should_failslab+0xbc/0x10c [ 79.396719][ T5471] should_failslab+0x10/0x28 [ 79.397423][ T5471] slab_pre_alloc_hook+0x64/0xec [ 79.398262][ T5471] kmem_cache_alloc_trace+0x98/0x3fc [ 79.399162][ T5471] btrfs_delete_delayed_dir_index+0x220/0x550 [ 79.400070][ T5471] __btrfs_unlink_inode+0x34c/0xb00 [ 79.400879][ T5471] btrfs_unlink+0x108/0x258 [ 79.401577][ T5471] vfs_unlink+0x2e0/0x4f4 [ 79.402197][ T5471] do_unlinkat+0x31c/0x600 [ 79.402876][ T5471] __arm64_sys_unlinkat+0xe0/0xfc [ 79.403579][ T5471] invoke_syscall+0x98/0x2b8 [ 79.404204][ T5471] el0_svc_common+0x138/0x258 [ 79.404851][ T5471] do_el0_svc+0x58/0x14c [ 79.405466][ T5471] el0_svc+0x78/0x1e0 [ 79.406025][ T5471] el0t_64_sync_handler+0xcc/0xe4 [ 79.406773][ T5471] el0t_64_sync+0x1a0/0x1a4 [ 79.408642][ T5471] ------------[ cut here ]------------ [ 79.409491][ T5471] WARNING: CPU: 1 PID: 5471 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 79.410758][ T5471] Modules linked in: [ 79.411296][ T5471] CPU: 1 PID: 5471 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 79.412512][ T5471] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.413869][ T5471] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.414940][ T5471] pc : __btrfs_unlink_inode+0x908/0xb00 [ 79.415713][ T5471] lr : __btrfs_unlink_inode+0x908/0xb00 [ 79.416659][ T5471] sp : ffff800022297a60 [ 79.417286][ T5471] x29: ffff800022297b10 x28: ffff0000d4b9a000 x27: ffff0000ed18e410 [ 79.418463][ T5471] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000da126630 [ 79.419647][ T5471] x23: 1ffff00004452f54 x22: dfff800000000000 x21: ffff0000ed1a3ae0 [ 79.420869][ T5471] x20: ffff0000de24b058 x19: 1fffe0001bc4960b x18: 0000000000000001 [ 79.422052][ T5471] x17: 0000000000000000 x16: ffff800008302168 x15: 00000000ffffffff [ 79.423159][ T5471] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.424317][ T5471] x11: 0000000000000000 x10: 0000000000000000 x9 : a689fd9b1986f300 [ 79.425491][ T5471] x8 : a689fd9b1986f300 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.426605][ T5471] x5 : ffff800022297358 x4 : ffff80001426f520 x3 : ffff800008302278 [ 79.427739][ T5471] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.428904][ T5471] Call trace: [ 79.429347][ T5471] __btrfs_unlink_inode+0x908/0xb00 [ 79.430086][ T5471] btrfs_unlink+0x108/0x258 [ 79.430717][ T5471] vfs_unlink+0x2e0/0x4f4 [ 79.431341][ T5471] do_unlinkat+0x31c/0x600 [ 79.431984][ T5471] __arm64_sys_unlinkat+0xe0/0xfc [ 79.432646][ T5471] invoke_syscall+0x98/0x2b8 [ 79.433315][ T5471] el0_svc_common+0x138/0x258 [ 79.433935][ T5471] do_el0_svc+0x58/0x14c [ 79.434510][ T5471] el0_svc+0x78/0x1e0 [ 79.435059][ T5471] el0t_64_sync_handler+0xcc/0xe4 [ 79.435778][ T5471] el0t_64_sync+0x1a0/0x1a4 [ 79.436404][ T5471] irq event stamp: 79288 [ 79.437003][ T5471] hardirqs last enabled at (79287): [] __up_console_sem+0xb4/0x100 [ 79.438429][ T5471] hardirqs last disabled at (79288): [] el1_dbg+0x24/0x80 [ 79.439665][ T5471] softirqs last enabled at (79268): [] handle_softirqs+0xa4c/0xbf0 [ 79.441105][ T5471] softirqs last disabled at (79229): [] __irq_exit_rcu+0x240/0x440 [ 79.442460][ T5471] ---[ end trace 2689470f4b4bb18d ]--- [ 79.443884][ T5471] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 79.445200][ T5471] BTRFS info (device loop0): forced readonly [ 79.579634][ T5493] loop0: detected capacity change from 0 to 32768 [ 79.609110][ T5493] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.35 (5493) [ 79.650151][ T5493] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.651635][ T5493] BTRFS info (device loop0): using free space tree [ 79.652744][ T5493] BTRFS info (device loop0): has skinny extents [ 79.662788][ T5493] BTRFS info (device loop0): enabling ssd optimizations [ 79.666647][ T5493] FAULT_INJECTION: forcing a failure. [ 79.666647][ T5493] name failslab, interval 1, probability 0, space 0, times 0 [ 79.668869][ T5493] CPU: 0 PID: 5493 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 79.670172][ T5493] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.671635][ T5493] Call trace: [ 79.672096][ T5493] dump_backtrace+0x0/0x43c [ 79.672686][ T5493] show_stack+0x2c/0x3c [ 79.673263][ T5493] __dump_stack+0x30/0x40 [ 79.673851][ T5493] dump_stack_lvl+0xf8/0x160 [ 79.674479][ T5493] dump_stack+0x1c/0x5c [ 79.675030][ T5493] should_fail+0x3c0/0x51c [ 79.675634][ T5493] __should_failslab+0xbc/0x10c [ 79.676321][ T5493] should_failslab+0x10/0x28 [ 79.676958][ T5493] slab_pre_alloc_hook+0x64/0xec [ 79.677639][ T5493] kmem_cache_alloc_trace+0x98/0x3fc [ 79.678410][ T5493] btrfs_delete_delayed_dir_index+0x220/0x550 [ 79.679247][ T5493] __btrfs_unlink_inode+0x34c/0xb00 [ 79.679910][ T5493] btrfs_unlink+0x108/0x258 [ 79.680503][ T5493] vfs_unlink+0x2e0/0x4f4 [ 79.681114][ T5493] do_unlinkat+0x31c/0x600 [ 79.681749][ T5493] __arm64_sys_unlinkat+0xe0/0xfc [ 79.682452][ T5493] invoke_syscall+0x98/0x2b8 [ 79.683080][ T5493] el0_svc_common+0x138/0x258 [ 79.683751][ T5493] do_el0_svc+0x58/0x14c [ 79.684376][ T5493] el0_svc+0x78/0x1e0 [ 79.684933][ T5493] el0t_64_sync_handler+0xcc/0xe4 [ 79.685636][ T5493] el0t_64_sync+0x1a0/0x1a4 [ 79.687060][ T5493] ------------[ cut here ]------------ [ 79.697765][ T5493] WARNING: CPU: 0 PID: 5493 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 79.699293][ T5493] Modules linked in: [ 79.699885][ T5493] CPU: 0 PID: 5493 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 79.701129][ T5493] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.702453][ T5493] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.703533][ T5493] pc : __btrfs_unlink_inode+0x908/0xb00 [ 79.704319][ T5493] lr : __btrfs_unlink_inode+0x908/0xb00 [ 79.705107][ T5493] sp : ffff800022427a60 [ 79.705634][ T5493] x29: ffff800022427b10 x28: ffff0000c9918000 x27: ffff0000ed01c410 [ 79.706756][ T5493] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d3cc3b00 [ 79.708011][ T5493] x23: 1ffff00004484f54 x22: dfff800000000000 x21: ffff0000e27f3ae0 [ 79.709213][ T5493] x20: ffff0000de1d9b58 x19: 1fffe0001bc3b36b x18: 0000000000000001 [ 79.710370][ T5493] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 79.711445][ T5493] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.712577][ T5493] x11: 0000000000000000 x10: 0000000000000000 x9 : 7b6a0b44905e7500 [ 79.713671][ T5493] x8 : 7b6a0b44905e7500 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.714932][ T5493] x5 : ffff800022427358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 79.716160][ T5493] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.717284][ T5493] Call trace: [ 79.717751][ T5493] __btrfs_unlink_inode+0x908/0xb00 [ 79.718440][ T5493] btrfs_unlink+0x108/0x258 [ 79.719038][ T5493] vfs_unlink+0x2e0/0x4f4 [ 79.719607][ T5493] do_unlinkat+0x31c/0x600 [ 79.720236][ T5493] __arm64_sys_unlinkat+0xe0/0xfc [ 79.720968][ T5493] invoke_syscall+0x98/0x2b8 [ 79.721625][ T5493] el0_svc_common+0x138/0x258 [ 79.722271][ T5493] do_el0_svc+0x58/0x14c [ 79.722837][ T5493] el0_svc+0x78/0x1e0 [ 79.723392][ T5493] el0t_64_sync_handler+0xcc/0xe4 [ 79.724137][ T5493] el0t_64_sync+0x1a0/0x1a4 [ 79.724831][ T5493] irq event stamp: 79190 [ 79.725447][ T5493] hardirqs last enabled at (79189): [] __up_console_sem+0xb4/0x100 [ 79.726737][ T5493] hardirqs last disabled at (79190): [] el1_dbg+0x24/0x80 [ 79.727911][ T5493] softirqs last enabled at (79178): [] handle_softirqs+0xa4c/0xbf0 [ 79.729157][ T5493] softirqs last disabled at (78987): [] __irq_exit_rcu+0x240/0x440 [ 79.730477][ T5493] ---[ end trace 2689470f4b4bb18e ]--- [ 79.732600][ T5493] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 79.733947][ T5493] BTRFS info (device loop0): forced readonly [ 79.865952][ T5515] loop0: detected capacity change from 0 to 32768 [ 79.898958][ T5515] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.36 (5515) [ 79.940590][ T5515] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.941989][ T5515] BTRFS info (device loop0): using free space tree [ 79.942898][ T5515] BTRFS info (device loop0): has skinny extents [ 79.949992][ T5515] BTRFS info (device loop0): enabling ssd optimizations [ 79.955365][ T5515] FAULT_INJECTION: forcing a failure. [ 79.955365][ T5515] name failslab, interval 1, probability 0, space 0, times 0 [ 79.957726][ T5515] CPU: 1 PID: 5515 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 79.959109][ T5515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.960538][ T5515] Call trace: [ 79.961029][ T5515] dump_backtrace+0x0/0x43c [ 79.961645][ T5515] show_stack+0x2c/0x3c [ 79.962230][ T5515] __dump_stack+0x30/0x40 [ 79.962859][ T5515] dump_stack_lvl+0xf8/0x160 [ 79.963540][ T5515] dump_stack+0x1c/0x5c [ 79.964154][ T5515] should_fail+0x3c0/0x51c [ 79.964772][ T5515] __should_failslab+0xbc/0x10c [ 79.965435][ T5515] should_failslab+0x10/0x28 [ 79.966143][ T5515] slab_pre_alloc_hook+0x64/0xec [ 79.966838][ T5515] kmem_cache_alloc_trace+0x98/0x3fc [ 79.967588][ T5515] btrfs_delete_delayed_dir_index+0x220/0x550 [ 79.968435][ T5515] __btrfs_unlink_inode+0x34c/0xb00 [ 79.969162][ T5515] btrfs_unlink+0x108/0x258 [ 79.969819][ T5515] vfs_unlink+0x2e0/0x4f4 [ 79.970457][ T5515] do_unlinkat+0x31c/0x600 [ 79.971060][ T5515] __arm64_sys_unlinkat+0xe0/0xfc [ 79.971825][ T5515] invoke_syscall+0x98/0x2b8 [ 79.972468][ T5515] el0_svc_common+0x138/0x258 [ 79.973074][ T5515] do_el0_svc+0x58/0x14c [ 79.973701][ T5515] el0_svc+0x78/0x1e0 [ 79.974258][ T5515] el0t_64_sync_handler+0xcc/0xe4 [ 79.975016][ T5515] el0t_64_sync+0x1a0/0x1a4 [ 79.976501][ T5515] ------------[ cut here ]------------ [ 79.977399][ T5515] WARNING: CPU: 1 PID: 5515 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 79.978791][ T5515] Modules linked in: [ 79.979384][ T5515] CPU: 1 PID: 5515 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 79.980618][ T5515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.982140][ T5515] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.983231][ T5515] pc : __btrfs_unlink_inode+0x908/0xb00 [ 79.984024][ T5515] lr : __btrfs_unlink_inode+0x908/0xb00 [ 79.984815][ T5515] sp : ffff800022297a60 [ 79.985465][ T5515] x29: ffff800022297b10 x28: ffff0000ec200000 x27: ffff0000ed18d010 [ 79.986585][ T5515] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d99d42c0 [ 79.987834][ T5515] x23: 1ffff00004452f54 x22: dfff800000000000 x21: ffff0000ed13f5c0 [ 79.988935][ T5515] x20: ffff0000de24b898 x19: 1fffe0001bc49713 x18: 0000000000000001 [ 79.990114][ T5515] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 79.991296][ T5515] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.992466][ T5515] x11: 0000000000000000 x10: 0000000000000000 x9 : f63b704b0ea15b00 [ 79.993529][ T5515] x8 : f63b704b0ea15b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.994685][ T5515] x5 : ffff800022297358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 79.995765][ T5515] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.996869][ T5515] Call trace: [ 79.997333][ T5515] __btrfs_unlink_inode+0x908/0xb00 [ 79.998011][ T5515] btrfs_unlink+0x108/0x258 [ 79.998632][ T5515] vfs_unlink+0x2e0/0x4f4 [ 79.999227][ T5515] do_unlinkat+0x31c/0x600 [ 79.999876][ T5515] __arm64_sys_unlinkat+0xe0/0xfc [ 80.000602][ T5515] invoke_syscall+0x98/0x2b8 [ 80.001250][ T5515] el0_svc_common+0x138/0x258 [ 80.001916][ T5515] do_el0_svc+0x58/0x14c [ 80.002500][ T5515] el0_svc+0x78/0x1e0 [ 80.003015][ T5515] el0t_64_sync_handler+0xcc/0xe4 [ 80.003721][ T5515] el0t_64_sync+0x1a0/0x1a4 [ 80.004397][ T5515] irq event stamp: 79332 [ 80.004969][ T5515] hardirqs last enabled at (79331): [] __up_console_sem+0xb4/0x100 [ 80.006356][ T5515] hardirqs last disabled at (79332): [] el1_dbg+0x24/0x80 [ 80.007619][ T5515] softirqs last enabled at (79312): [] handle_softirqs+0xa4c/0xbf0 [ 80.009000][ T5515] softirqs last disabled at (79285): [] __irq_exit_rcu+0x240/0x440 [ 80.010309][ T5515] ---[ end trace 2689470f4b4bb18f ]--- [ 80.012634][ T5515] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 80.014028][ T5515] BTRFS info (device loop0): forced readonly [ 80.154246][ T5537] loop0: detected capacity change from 0 to 32768 [ 80.161988][ T5537] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.37 (5537) [ 80.166134][ T5537] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.167519][ T5537] BTRFS info (device loop0): using free space tree [ 80.168992][ T5537] BTRFS info (device loop0): has skinny extents [ 80.186994][ T5537] BTRFS info (device loop0): enabling ssd optimizations [ 80.190844][ T5537] FAULT_INJECTION: forcing a failure. [ 80.190844][ T5537] name failslab, interval 1, probability 0, space 0, times 0 [ 80.192700][ T5537] CPU: 1 PID: 5537 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 80.193912][ T5537] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.195350][ T5537] Call trace: [ 80.195782][ T5537] dump_backtrace+0x0/0x43c [ 80.196437][ T5537] show_stack+0x2c/0x3c [ 80.197021][ T5537] __dump_stack+0x30/0x40 [ 80.197739][ T5537] dump_stack_lvl+0xf8/0x160 [ 80.198399][ T5537] dump_stack+0x1c/0x5c [ 80.199006][ T5537] should_fail+0x3c0/0x51c [ 80.199599][ T5537] __should_failslab+0xbc/0x10c [ 80.200271][ T5537] should_failslab+0x10/0x28 [ 80.200928][ T5537] slab_pre_alloc_hook+0x64/0xec [ 80.201643][ T5537] kmem_cache_alloc_trace+0x98/0x3fc [ 80.202434][ T5537] btrfs_delete_delayed_dir_index+0x220/0x550 [ 80.203314][ T5537] __btrfs_unlink_inode+0x34c/0xb00 [ 80.204040][ T5537] btrfs_unlink+0x108/0x258 [ 80.204710][ T5537] vfs_unlink+0x2e0/0x4f4 [ 80.205316][ T5537] do_unlinkat+0x31c/0x600 [ 80.205961][ T5537] __arm64_sys_unlinkat+0xe0/0xfc [ 80.206665][ T5537] invoke_syscall+0x98/0x2b8 [ 80.207306][ T5537] el0_svc_common+0x138/0x258 [ 80.207973][ T5537] do_el0_svc+0x58/0x14c [ 80.208604][ T5537] el0_svc+0x78/0x1e0 [ 80.209150][ T5537] el0t_64_sync_handler+0xcc/0xe4 [ 80.209850][ T5537] el0t_64_sync+0x1a0/0x1a4 [ 80.210986][ T5537] ------------[ cut here ]------------ [ 80.211911][ T5537] WARNING: CPU: 1 PID: 5537 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 80.213372][ T5537] Modules linked in: [ 80.213999][ T5537] CPU: 1 PID: 5537 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 80.215291][ T5537] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.216838][ T5537] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.218072][ T5537] pc : __btrfs_unlink_inode+0x908/0xb00 [ 80.218897][ T5537] lr : __btrfs_unlink_inode+0x908/0xb00 [ 80.219653][ T5537] sp : ffff800022627a60 [ 80.220226][ T5537] x29: ffff800022627b10 x28: ffff0000d034e000 x27: ffff0000ed18d410 [ 80.221306][ T5537] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d69d8dc0 [ 80.222384][ T5537] x23: 1ffff000044c4f54 x22: dfff800000000000 x21: ffff0000ed13d850 [ 80.223592][ T5537] x20: ffff0000de24b9f8 x19: 1fffe0001bc4973f x18: 0000000000000001 [ 80.224693][ T5537] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 80.225838][ T5537] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 80.226971][ T5537] x11: 0000000000000000 x10: 0000000000000000 x9 : dd3423fd9a5d7b00 [ 80.228146][ T5537] x8 : dd3423fd9a5d7b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.229275][ T5537] x5 : ffff800022627358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 80.230355][ T5537] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.231534][ T5537] Call trace: [ 80.232014][ T5537] __btrfs_unlink_inode+0x908/0xb00 [ 80.232757][ T5537] btrfs_unlink+0x108/0x258 [ 80.233368][ T5537] vfs_unlink+0x2e0/0x4f4 [ 80.233968][ T5537] do_unlinkat+0x31c/0x600 [ 80.234603][ T5537] __arm64_sys_unlinkat+0xe0/0xfc [ 80.235276][ T5537] invoke_syscall+0x98/0x2b8 [ 80.235961][ T5537] el0_svc_common+0x138/0x258 [ 80.236596][ T5537] do_el0_svc+0x58/0x14c [ 80.237225][ T5537] el0_svc+0x78/0x1e0 [ 80.237774][ T5537] el0t_64_sync_handler+0xcc/0xe4 [ 80.238458][ T5537] el0t_64_sync+0x1a0/0x1a4 [ 80.239123][ T5537] irq event stamp: 79292 [ 80.239677][ T5537] hardirqs last enabled at (79291): [] __up_console_sem+0xb4/0x100 [ 80.241306][ T5537] hardirqs last disabled at (79292): [] el1_dbg+0x24/0x80 [ 80.242626][ T5537] softirqs last enabled at (79272): [] handle_softirqs+0xa4c/0xbf0 [ 80.243997][ T5537] softirqs last disabled at (79199): [] __irq_exit_rcu+0x240/0x440 [ 80.245485][ T5537] ---[ end trace 2689470f4b4bb190 ]--- [ 80.246744][ T5537] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 80.249175][ T5537] BTRFS info (device loop0): forced readonly [ 80.378594][ T5559] loop0: detected capacity change from 0 to 32768 [ 80.461924][ T5559] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.38 (5559) [ 80.465050][ T5559] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.466414][ T5559] BTRFS info (device loop0): using free space tree [ 80.467326][ T5559] BTRFS info (device loop0): has skinny extents [ 80.474120][ T5559] BTRFS info (device loop0): enabling ssd optimizations [ 80.478073][ T5559] FAULT_INJECTION: forcing a failure. [ 80.478073][ T5559] name failslab, interval 1, probability 0, space 0, times 0 [ 80.479786][ T5559] CPU: 0 PID: 5559 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 80.480955][ T5559] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.482336][ T5559] Call trace: [ 80.482760][ T5559] dump_backtrace+0x0/0x43c [ 80.483380][ T5559] show_stack+0x2c/0x3c [ 80.483946][ T5559] __dump_stack+0x30/0x40 [ 80.484524][ T5559] dump_stack_lvl+0xf8/0x160 [ 80.485195][ T5559] dump_stack+0x1c/0x5c [ 80.485771][ T5559] should_fail+0x3c0/0x51c [ 80.486380][ T5559] __should_failslab+0xbc/0x10c [ 80.487036][ T5559] should_failslab+0x10/0x28 [ 80.487695][ T5559] slab_pre_alloc_hook+0x64/0xec [ 80.488380][ T5559] kmem_cache_alloc_trace+0x98/0x3fc [ 80.489062][ T5559] btrfs_delete_delayed_dir_index+0x220/0x550 [ 80.489860][ T5559] __btrfs_unlink_inode+0x34c/0xb00 [ 80.490669][ T5559] btrfs_unlink+0x108/0x258 [ 80.491283][ T5559] vfs_unlink+0x2e0/0x4f4 [ 80.491854][ T5559] do_unlinkat+0x31c/0x600 [ 80.492490][ T5559] __arm64_sys_unlinkat+0xe0/0xfc [ 80.493144][ T5559] invoke_syscall+0x98/0x2b8 [ 80.493798][ T5559] el0_svc_common+0x138/0x258 [ 80.494406][ T5559] do_el0_svc+0x58/0x14c [ 80.495028][ T5559] el0_svc+0x78/0x1e0 [ 80.495576][ T5559] el0t_64_sync_handler+0xcc/0xe4 [ 80.496259][ T5559] el0t_64_sync+0x1a0/0x1a4 [ 80.497723][ T5559] ------------[ cut here ]------------ [ 80.498863][ T5559] WARNING: CPU: 0 PID: 5559 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 80.500212][ T5559] Modules linked in: [ 80.500769][ T5559] CPU: 0 PID: 5559 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 80.501973][ T5559] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.503356][ T5559] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.504422][ T5559] pc : __btrfs_unlink_inode+0x908/0xb00 [ 80.505191][ T5559] lr : __btrfs_unlink_inode+0x908/0xb00 [ 80.505960][ T5559] sp : ffff8000227b7a60 [ 80.506511][ T5559] x29: ffff8000227b7b10 x28: ffff0000d0d24000 x27: ffff0000ed01d810 [ 80.507615][ T5559] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000dc4ec210 [ 80.508797][ T5559] x23: 1ffff000044f6f54 x22: dfff800000000000 x21: ffff0000e27f6bf0 [ 80.509917][ T5559] x20: ffff0000de1d9cb8 x19: 1fffe0001bc3b397 x18: 0000000000000001 [ 80.511022][ T5559] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 80.512170][ T5559] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 80.513304][ T5559] x11: 0000000000000000 x10: 0000000000000000 x9 : 29e1a77e19c98400 [ 80.514590][ T5559] x8 : 29e1a77e19c98400 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.515876][ T5559] x5 : ffff8000227b7358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 80.517127][ T5559] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.518409][ T5559] Call trace: [ 80.518879][ T5559] __btrfs_unlink_inode+0x908/0xb00 [ 80.519729][ T5559] btrfs_unlink+0x108/0x258 [ 80.520418][ T5559] vfs_unlink+0x2e0/0x4f4 [ 80.521117][ T5559] do_unlinkat+0x31c/0x600 [ 80.521792][ T5559] __arm64_sys_unlinkat+0xe0/0xfc [ 80.522525][ T5559] invoke_syscall+0x98/0x2b8 [ 80.523171][ T5559] el0_svc_common+0x138/0x258 [ 80.523803][ T5559] do_el0_svc+0x58/0x14c [ 80.524392][ T5559] el0_svc+0x78/0x1e0 [ 80.524986][ T5559] el0t_64_sync_handler+0xcc/0xe4 [ 80.525688][ T5559] el0t_64_sync+0x1a0/0x1a4 [ 80.526295][ T5559] irq event stamp: 79468 [ 80.526884][ T5559] hardirqs last enabled at (79467): [] __up_console_sem+0xb4/0x100 [ 80.528302][ T5559] hardirqs last disabled at (79468): [] el1_dbg+0x24/0x80 [ 80.529570][ T5559] softirqs last enabled at (79458): [] handle_softirqs+0xa4c/0xbf0 [ 80.531040][ T5559] softirqs last disabled at (79355): [] __irq_exit_rcu+0x240/0x440 [ 80.532391][ T5559] ---[ end trace 2689470f4b4bb191 ]--- [ 80.534242][ T5559] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 80.543928][ T5559] BTRFS info (device loop0): forced readonly [ 80.708786][ T5581] loop0: detected capacity change from 0 to 32768 [ 80.715958][ T5581] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.39 (5581) [ 80.721257][ T5581] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.722604][ T5581] BTRFS info (device loop0): using free space tree [ 80.723476][ T5581] BTRFS info (device loop0): has skinny extents [ 80.730759][ T5581] BTRFS info (device loop0): enabling ssd optimizations [ 80.734937][ T5581] FAULT_INJECTION: forcing a failure. [ 80.734937][ T5581] name failslab, interval 1, probability 0, space 0, times 0 [ 80.737003][ T5581] CPU: 0 PID: 5581 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 80.738287][ T5581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.739703][ T5581] Call trace: [ 80.740168][ T5581] dump_backtrace+0x0/0x43c [ 80.740807][ T5581] show_stack+0x2c/0x3c [ 80.741386][ T5581] __dump_stack+0x30/0x40 [ 80.742012][ T5581] dump_stack_lvl+0xf8/0x160 [ 80.742708][ T5581] dump_stack+0x1c/0x5c [ 80.743358][ T5581] should_fail+0x3c0/0x51c [ 80.743984][ T5581] __should_failslab+0xbc/0x10c [ 80.744661][ T5581] should_failslab+0x10/0x28 [ 80.745290][ T5581] slab_pre_alloc_hook+0x64/0xec [ 80.746000][ T5581] kmem_cache_alloc_trace+0x98/0x3fc [ 80.746703][ T5581] btrfs_delete_delayed_dir_index+0x220/0x550 [ 80.747553][ T5581] __btrfs_unlink_inode+0x34c/0xb00 [ 80.748283][ T5581] btrfs_unlink+0x108/0x258 [ 80.748950][ T5581] vfs_unlink+0x2e0/0x4f4 [ 80.749576][ T5581] do_unlinkat+0x31c/0x600 [ 80.750155][ T5581] __arm64_sys_unlinkat+0xe0/0xfc [ 80.750808][ T5581] invoke_syscall+0x98/0x2b8 [ 80.751441][ T5581] el0_svc_common+0x138/0x258 [ 80.752089][ T5581] do_el0_svc+0x58/0x14c [ 80.752737][ T5581] el0_svc+0x78/0x1e0 [ 80.753412][ T5581] el0t_64_sync_handler+0xcc/0xe4 [ 80.754191][ T5581] el0t_64_sync+0x1a0/0x1a4 [ 80.755137][ T5581] ------------[ cut here ]------------ [ 80.756035][ T5581] WARNING: CPU: 0 PID: 5581 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 80.757319][ T5581] Modules linked in: [ 80.757870][ T5581] CPU: 0 PID: 5581 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 80.759042][ T5581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.760419][ T5581] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.761511][ T5581] pc : __btrfs_unlink_inode+0x908/0xb00 [ 80.762274][ T5581] lr : __btrfs_unlink_inode+0x908/0xb00 [ 80.763013][ T5581] sp : ffff800022517a60 [ 80.763562][ T5581] x29: ffff800022517b10 x28: ffff0000d7d26000 x27: ffff0000ed01dc10 [ 80.764618][ T5581] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000da353370 [ 80.765728][ T5581] x23: 1ffff000044a2f54 x22: dfff800000000000 x21: ffff0000ed141d70 [ 80.766906][ T5581] x20: ffff0000de1d9e18 x19: 1fffe0001bc3b3c3 x18: 0000000000000001 [ 80.768110][ T5581] x17: 0000000000000000 x16: ffff800008302168 x15: 00000000ffffffff [ 80.769197][ T5581] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 80.770328][ T5581] x11: 0000000000000000 x10: 0000000000000000 x9 : 073cd0ccc8623000 [ 80.771409][ T5581] x8 : 073cd0ccc8623000 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.772481][ T5581] x5 : ffff800022517358 x4 : ffff80001426f520 x3 : ffff800008302278 [ 80.773605][ T5581] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.774686][ T5581] Call trace: [ 80.775167][ T5581] __btrfs_unlink_inode+0x908/0xb00 [ 80.775923][ T5581] btrfs_unlink+0x108/0x258 [ 80.776590][ T5581] vfs_unlink+0x2e0/0x4f4 [ 80.777198][ T5581] do_unlinkat+0x31c/0x600 [ 80.777858][ T5581] __arm64_sys_unlinkat+0xe0/0xfc [ 80.778547][ T5581] invoke_syscall+0x98/0x2b8 [ 80.779210][ T5581] el0_svc_common+0x138/0x258 [ 80.779863][ T5581] do_el0_svc+0x58/0x14c [ 80.780538][ T5581] el0_svc+0x78/0x1e0 [ 80.781178][ T5581] el0t_64_sync_handler+0xcc/0xe4 [ 80.781897][ T5581] el0t_64_sync+0x1a0/0x1a4 [ 80.782580][ T5581] irq event stamp: 79286 [ 80.783127][ T5581] hardirqs last enabled at (79285): [] __up_console_sem+0xb4/0x100 [ 80.784425][ T5581] hardirqs last disabled at (79286): [] el1_dbg+0x24/0x80 [ 80.785587][ T5581] softirqs last enabled at (79266): [] handle_softirqs+0xa4c/0xbf0 [ 80.786966][ T5581] softirqs last disabled at (79247): [] __irq_exit_rcu+0x240/0x440 [ 80.788272][ T5581] ---[ end trace 2689470f4b4bb192 ]--- [ 80.789294][ T5581] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 80.790531][ T5581] BTRFS info (device loop0): forced readonly [ 80.897826][ T4127] Bluetooth: hci0: command 0x0419 tx timeout [ 80.936119][ T5603] loop0: detected capacity change from 0 to 32768 [ 80.972822][ T5603] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.40 (5603) [ 80.975848][ T5603] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.977262][ T5603] BTRFS info (device loop0): using free space tree [ 80.978834][ T5603] BTRFS info (device loop0): has skinny extents [ 80.987180][ T5603] BTRFS info (device loop0): enabling ssd optimizations [ 80.991807][ T5603] FAULT_INJECTION: forcing a failure. [ 80.991807][ T5603] name failslab, interval 1, probability 0, space 0, times 0 [ 80.993759][ T5603] CPU: 1 PID: 5603 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 80.995077][ T5603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.996539][ T5603] Call trace: [ 80.997049][ T5603] dump_backtrace+0x0/0x43c [ 80.997724][ T5603] show_stack+0x2c/0x3c [ 80.998319][ T5603] __dump_stack+0x30/0x40 [ 80.998960][ T5603] dump_stack_lvl+0xf8/0x160 [ 80.999630][ T5603] dump_stack+0x1c/0x5c [ 81.000226][ T5603] should_fail+0x3c0/0x51c [ 81.000885][ T5603] __should_failslab+0xbc/0x10c [ 81.001713][ T5603] should_failslab+0x10/0x28 [ 81.002455][ T5603] slab_pre_alloc_hook+0x64/0xec [ 81.003266][ T5603] kmem_cache_alloc_trace+0x98/0x3fc [ 81.004017][ T5603] btrfs_delete_delayed_dir_index+0x220/0x550 [ 81.004921][ T5603] __btrfs_unlink_inode+0x34c/0xb00 [ 81.005634][ T5603] btrfs_unlink+0x108/0x258 [ 81.006314][ T5603] vfs_unlink+0x2e0/0x4f4 [ 81.006923][ T5603] do_unlinkat+0x31c/0x600 [ 81.007531][ T5603] __arm64_sys_unlinkat+0xe0/0xfc [ 81.008220][ T5603] invoke_syscall+0x98/0x2b8 [ 81.008837][ T5603] el0_svc_common+0x138/0x258 [ 81.009501][ T5603] do_el0_svc+0x58/0x14c [ 81.010088][ T5603] el0_svc+0x78/0x1e0 [ 81.010632][ T5603] el0t_64_sync_handler+0xcc/0xe4 [ 81.011288][ T5603] el0t_64_sync+0x1a0/0x1a4 [ 81.013938][ T5603] ------------[ cut here ]------------ [ 81.014806][ T5603] WARNING: CPU: 1 PID: 5603 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 81.016041][ T5603] Modules linked in: [ 81.016621][ T5603] CPU: 1 PID: 5603 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 81.017908][ T5603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.019374][ T5603] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.020490][ T5603] pc : __btrfs_unlink_inode+0x908/0xb00 [ 81.021324][ T5603] lr : __btrfs_unlink_inode+0x908/0xb00 [ 81.022164][ T5603] sp : ffff800023717a60 [ 81.022716][ T5603] x29: ffff800023717b10 x28: ffff0000c7e2e000 x27: ffff0000ed18dc10 [ 81.024013][ T5603] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d3d21c60 [ 81.025195][ T5603] x23: 1ffff000046e2f54 x22: dfff800000000000 x21: ffff0000ed13bae0 [ 81.026377][ T5603] x20: ffff0000de24bcb8 x19: 1fffe0001bc49797 x18: 0000000000000001 [ 81.027582][ T5603] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 81.028796][ T5603] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.029957][ T5603] x11: 0000000000000000 x10: 0000000000000000 x9 : 31eadf9172134300 [ 81.031136][ T5603] x8 : 31eadf9172134300 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.032236][ T5603] x5 : ffff800023717358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 81.033371][ T5603] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.034498][ T5603] Call trace: [ 81.034963][ T5603] __btrfs_unlink_inode+0x908/0xb00 [ 81.035743][ T5603] btrfs_unlink+0x108/0x258 [ 81.036386][ T5603] vfs_unlink+0x2e0/0x4f4 [ 81.036986][ T5603] do_unlinkat+0x31c/0x600 [ 81.037582][ T5603] __arm64_sys_unlinkat+0xe0/0xfc [ 81.038298][ T5603] invoke_syscall+0x98/0x2b8 [ 81.038981][ T5603] el0_svc_common+0x138/0x258 [ 81.039624][ T5603] do_el0_svc+0x58/0x14c [ 81.040259][ T5603] el0_svc+0x78/0x1e0 [ 81.040840][ T5603] el0t_64_sync_handler+0xcc/0xe4 [ 81.041532][ T5603] el0t_64_sync+0x1a0/0x1a4 [ 81.042163][ T5603] irq event stamp: 79160 [ 81.042749][ T5603] hardirqs last enabled at (79159): [] __up_console_sem+0xb4/0x100 [ 81.044010][ T5603] hardirqs last disabled at (79160): [] el1_dbg+0x24/0x80 [ 81.045199][ T5603] softirqs last enabled at (79140): [] handle_softirqs+0xa4c/0xbf0 [ 81.046527][ T5603] softirqs last disabled at (79113): [] __irq_exit_rcu+0x240/0x440 [ 81.047770][ T5603] ---[ end trace 2689470f4b4bb193 ]--- [ 81.052112][ T5603] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 81.053468][ T5603] BTRFS info (device loop0): forced readonly [ 81.231246][ T5625] loop0: detected capacity change from 0 to 32768 [ 81.273611][ T5625] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.41 (5625) [ 81.277197][ T5625] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.279114][ T5625] BTRFS info (device loop0): using free space tree [ 81.280068][ T5625] BTRFS info (device loop0): has skinny extents [ 81.287213][ T5625] BTRFS info (device loop0): enabling ssd optimizations [ 81.292000][ T5625] FAULT_INJECTION: forcing a failure. [ 81.292000][ T5625] name failslab, interval 1, probability 0, space 0, times 0 [ 81.293970][ T5625] CPU: 1 PID: 5625 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 81.295152][ T5625] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.296582][ T5625] Call trace: [ 81.297003][ T5625] dump_backtrace+0x0/0x43c [ 81.297641][ T5625] show_stack+0x2c/0x3c [ 81.298225][ T5625] __dump_stack+0x30/0x40 [ 81.298841][ T5625] dump_stack_lvl+0xf8/0x160 [ 81.299494][ T5625] dump_stack+0x1c/0x5c [ 81.300120][ T5625] should_fail+0x3c0/0x51c [ 81.300796][ T5625] __should_failslab+0xbc/0x10c [ 81.301492][ T5625] should_failslab+0x10/0x28 [ 81.302149][ T5625] slab_pre_alloc_hook+0x64/0xec [ 81.302831][ T5625] kmem_cache_alloc_trace+0x98/0x3fc [ 81.303617][ T5625] btrfs_delete_delayed_dir_index+0x220/0x550 [ 81.304496][ T5625] __btrfs_unlink_inode+0x34c/0xb00 [ 81.305294][ T5625] btrfs_unlink+0x108/0x258 [ 81.305930][ T5625] vfs_unlink+0x2e0/0x4f4 [ 81.306530][ T5625] do_unlinkat+0x31c/0x600 [ 81.307221][ T5625] __arm64_sys_unlinkat+0xe0/0xfc [ 81.308040][ T5625] invoke_syscall+0x98/0x2b8 [ 81.308749][ T5625] el0_svc_common+0x138/0x258 [ 81.309402][ T5625] do_el0_svc+0x58/0x14c [ 81.310019][ T5625] el0_svc+0x78/0x1e0 [ 81.310625][ T5625] el0t_64_sync_handler+0xcc/0xe4 [ 81.311346][ T5625] el0t_64_sync+0x1a0/0x1a4 [ 81.314115][ T5625] ------------[ cut here ]------------ [ 81.315074][ T5625] WARNING: CPU: 1 PID: 5625 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 81.316388][ T5625] Modules linked in: [ 81.316982][ T5625] CPU: 1 PID: 5625 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 81.318246][ T5625] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.319741][ T5625] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.320876][ T5625] pc : __btrfs_unlink_inode+0x908/0xb00 [ 81.321712][ T5625] lr : __btrfs_unlink_inode+0x908/0xb00 [ 81.322495][ T5625] sp : ffff800023717a60 [ 81.323111][ T5625] x29: ffff800023717b10 x28: ffff0000d5ff6000 x27: ffff0000ed18e810 [ 81.324342][ T5625] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d00799a0 [ 81.325514][ T5625] x23: 1ffff000046e2f54 x22: dfff800000000000 x21: ffff0000ed1389d0 [ 81.326665][ T5625] x20: ffff0000de24b738 x19: 1fffe0001bc496e7 x18: 0000000000000001 [ 81.327829][ T5625] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 81.329032][ T5625] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.330246][ T5625] x11: 0000000000000000 x10: 0000000000000000 x9 : 2610a03bbe632200 [ 81.331363][ T5625] x8 : 2610a03bbe632200 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.332474][ T5625] x5 : ffff800023717358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 81.333640][ T5625] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.334874][ T5625] Call trace: [ 81.335335][ T5625] __btrfs_unlink_inode+0x908/0xb00 [ 81.336125][ T5625] btrfs_unlink+0x108/0x258 [ 81.336751][ T5625] vfs_unlink+0x2e0/0x4f4 [ 81.337368][ T5625] do_unlinkat+0x31c/0x600 [ 81.337998][ T5625] __arm64_sys_unlinkat+0xe0/0xfc [ 81.338734][ T5625] invoke_syscall+0x98/0x2b8 [ 81.339370][ T5625] el0_svc_common+0x138/0x258 [ 81.340014][ T5625] do_el0_svc+0x58/0x14c [ 81.340607][ T5625] el0_svc+0x78/0x1e0 [ 81.341165][ T5625] el0t_64_sync_handler+0xcc/0xe4 [ 81.341838][ T5625] el0t_64_sync+0x1a0/0x1a4 [ 81.342461][ T5625] irq event stamp: 78796 [ 81.343054][ T5625] hardirqs last enabled at (78795): [] __up_console_sem+0xb4/0x100 [ 81.344430][ T5625] hardirqs last disabled at (78796): [] el1_dbg+0x24/0x80 [ 81.345656][ T5625] softirqs last enabled at (78776): [] handle_softirqs+0xa4c/0xbf0 [ 81.347076][ T5625] softirqs last disabled at (78759): [] __irq_exit_rcu+0x240/0x440 [ 81.348453][ T5625] ---[ end trace 2689470f4b4bb194 ]--- [ 81.351449][ T5625] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 81.352892][ T5625] BTRFS info (device loop0): forced readonly [ 81.526045][ T5647] loop0: detected capacity change from 0 to 32768 [ 81.569188][ T5647] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.42 (5647) [ 81.572225][ T5647] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.573644][ T5647] BTRFS info (device loop0): using free space tree [ 81.574678][ T5647] BTRFS info (device loop0): has skinny extents [ 81.583337][ T5647] BTRFS info (device loop0): enabling ssd optimizations [ 81.587199][ T5647] FAULT_INJECTION: forcing a failure. [ 81.587199][ T5647] name failslab, interval 1, probability 0, space 0, times 0 [ 81.589422][ T5647] CPU: 1 PID: 5647 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 81.590743][ T5647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.592196][ T5647] Call trace: [ 81.592673][ T5647] dump_backtrace+0x0/0x43c [ 81.593413][ T5647] show_stack+0x2c/0x3c [ 81.594090][ T5647] __dump_stack+0x30/0x40 [ 81.594785][ T5647] dump_stack_lvl+0xf8/0x160 [ 81.595528][ T5647] dump_stack+0x1c/0x5c [ 81.596147][ T5647] should_fail+0x3c0/0x51c [ 81.596802][ T5647] __should_failslab+0xbc/0x10c [ 81.597551][ T5647] should_failslab+0x10/0x28 [ 81.598299][ T5647] slab_pre_alloc_hook+0x64/0xec [ 81.599007][ T5647] kmem_cache_alloc_trace+0x98/0x3fc [ 81.599815][ T5647] btrfs_delete_delayed_dir_index+0x220/0x550 [ 81.600688][ T5647] __btrfs_unlink_inode+0x34c/0xb00 [ 81.601358][ T5647] btrfs_unlink+0x108/0x258 [ 81.601982][ T5647] vfs_unlink+0x2e0/0x4f4 [ 81.602674][ T5647] do_unlinkat+0x31c/0x600 [ 81.603298][ T5647] __arm64_sys_unlinkat+0xe0/0xfc [ 81.604050][ T5647] invoke_syscall+0x98/0x2b8 [ 81.604696][ T5647] el0_svc_common+0x138/0x258 [ 81.605318][ T5647] do_el0_svc+0x58/0x14c [ 81.605899][ T5647] el0_svc+0x78/0x1e0 [ 81.606476][ T5647] el0t_64_sync_handler+0xcc/0xe4 [ 81.607284][ T5647] el0t_64_sync+0x1a0/0x1a4 [ 81.609477][ T5647] ------------[ cut here ]------------ [ 81.610417][ T5647] WARNING: CPU: 1 PID: 5647 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 81.611727][ T5647] Modules linked in: [ 81.612246][ T5647] CPU: 1 PID: 5647 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 81.613453][ T5647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.614822][ T5647] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.615929][ T5647] pc : __btrfs_unlink_inode+0x908/0xb00 [ 81.616665][ T5647] lr : __btrfs_unlink_inode+0x908/0xb00 [ 81.617430][ T5647] sp : ffff800023957a60 [ 81.617993][ T5647] x29: ffff800023957b10 x28: ffff0000cba34000 x27: ffff0000ed18c010 [ 81.619186][ T5647] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000eca8f210 [ 81.620417][ T5647] x23: 1ffff0000472af54 x22: dfff800000000000 x21: ffff0000ed11b110 [ 81.621598][ T5647] x20: ffff0000de24b5d8 x19: 1fffe0001bc496bb x18: 0000000000000001 [ 81.622760][ T5647] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 81.623868][ T5647] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.625071][ T5647] x11: 0000000000000000 x10: 0000000000000000 x9 : c1702e3c13ea5400 [ 81.626205][ T5647] x8 : c1702e3c13ea5400 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.627414][ T5647] x5 : ffff800023957358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 81.628755][ T5647] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.630100][ T5647] Call trace: [ 81.630609][ T5647] __btrfs_unlink_inode+0x908/0xb00 [ 81.631449][ T5647] btrfs_unlink+0x108/0x258 [ 81.632120][ T5647] vfs_unlink+0x2e0/0x4f4 [ 81.632769][ T5647] do_unlinkat+0x31c/0x600 [ 81.633480][ T5647] __arm64_sys_unlinkat+0xe0/0xfc [ 81.634287][ T5647] invoke_syscall+0x98/0x2b8 [ 81.634927][ T5647] el0_svc_common+0x138/0x258 [ 81.635577][ T5647] do_el0_svc+0x58/0x14c [ 81.636220][ T5647] el0_svc+0x78/0x1e0 [ 81.636758][ T5647] el0t_64_sync_handler+0xcc/0xe4 [ 81.637469][ T5647] el0t_64_sync+0x1a0/0x1a4 [ 81.638126][ T5647] irq event stamp: 78614 [ 81.638728][ T5647] hardirqs last enabled at (78613): [] __up_console_sem+0xb4/0x100 [ 81.640099][ T5647] hardirqs last disabled at (78614): [] el1_dbg+0x24/0x80 [ 81.641357][ T5647] softirqs last enabled at (78594): [] handle_softirqs+0xa4c/0xbf0 [ 81.642736][ T5647] softirqs last disabled at (78573): [] __irq_exit_rcu+0x240/0x440 [ 81.644078][ T5647] ---[ end trace 2689470f4b4bb195 ]--- [ 81.648580][ T5647] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 81.649925][ T5647] BTRFS info (device loop0): forced readonly [ 81.776708][ T5670] loop0: detected capacity change from 0 to 32768 [ 81.880472][ T5670] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.43 (5670) [ 81.883834][ T5670] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.885286][ T5670] BTRFS info (device loop0): using free space tree [ 81.886231][ T5670] BTRFS info (device loop0): has skinny extents [ 81.894250][ T5670] BTRFS info (device loop0): enabling ssd optimizations [ 81.899093][ T5670] FAULT_INJECTION: forcing a failure. [ 81.899093][ T5670] name failslab, interval 1, probability 0, space 0, times 0 [ 81.901007][ T5670] CPU: 0 PID: 5670 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 81.902397][ T5670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.903900][ T5670] Call trace: [ 81.904412][ T5670] dump_backtrace+0x0/0x43c [ 81.905038][ T5670] show_stack+0x2c/0x3c [ 81.905629][ T5670] __dump_stack+0x30/0x40 [ 81.906313][ T5670] dump_stack_lvl+0xf8/0x160 [ 81.906982][ T5670] dump_stack+0x1c/0x5c [ 81.907548][ T5670] should_fail+0x3c0/0x51c [ 81.908179][ T5670] __should_failslab+0xbc/0x10c [ 81.908883][ T5670] should_failslab+0x10/0x28 [ 81.909530][ T5670] slab_pre_alloc_hook+0x64/0xec [ 81.910209][ T5670] kmem_cache_alloc_trace+0x98/0x3fc [ 81.911040][ T5670] btrfs_delete_delayed_dir_index+0x220/0x550 [ 81.911929][ T5670] __btrfs_unlink_inode+0x34c/0xb00 [ 81.912683][ T5670] btrfs_unlink+0x108/0x258 [ 81.913313][ T5670] vfs_unlink+0x2e0/0x4f4 [ 81.913936][ T5670] do_unlinkat+0x31c/0x600 [ 81.914579][ T5670] __arm64_sys_unlinkat+0xe0/0xfc [ 81.915320][ T5670] invoke_syscall+0x98/0x2b8 [ 81.916000][ T5670] el0_svc_common+0x138/0x258 [ 81.916716][ T5670] do_el0_svc+0x58/0x14c [ 81.917361][ T5670] el0_svc+0x78/0x1e0 [ 81.917947][ T5670] el0t_64_sync_handler+0xcc/0xe4 [ 81.918668][ T5670] el0t_64_sync+0x1a0/0x1a4 [ 81.919538][ T5670] ------------[ cut here ]------------ [ 81.920413][ T5670] WARNING: CPU: 0 PID: 5670 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 81.921766][ T5670] Modules linked in: [ 81.922291][ T5670] CPU: 0 PID: 5670 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 81.923512][ T5670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.924953][ T5670] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.926008][ T5670] pc : __btrfs_unlink_inode+0x908/0xb00 [ 81.926802][ T5670] lr : __btrfs_unlink_inode+0x908/0xb00 [ 81.927531][ T5670] sp : ffff8000227b7a60 [ 81.928065][ T5670] x29: ffff8000227b7b10 x28: ffff0000d91e8000 x27: ffff0000ed01d410 [ 81.929233][ T5670] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d7f1c4d0 [ 81.930378][ T5670] x23: 1ffff000044f6f54 x22: dfff800000000000 x21: ffff0000ed146220 [ 81.931568][ T5670] x20: ffff0000de1d9948 x19: 1fffe0001bc3b329 x18: 0000000000000001 [ 81.932739][ T5670] x17: 0000000000000000 x16: ffff800008302168 x15: 00000000ffffffff [ 81.933824][ T5670] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.935005][ T5670] x11: 0000000000000000 x10: 0000000000000000 x9 : 709327afe0cb2600 [ 81.936184][ T5670] x8 : 709327afe0cb2600 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.937321][ T5670] x5 : ffff8000227b7358 x4 : ffff80001426f520 x3 : ffff800008302278 [ 81.938473][ T5670] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.939627][ T5670] Call trace: [ 81.940106][ T5670] __btrfs_unlink_inode+0x908/0xb00 [ 81.940869][ T5670] btrfs_unlink+0x108/0x258 [ 81.941473][ T5670] vfs_unlink+0x2e0/0x4f4 [ 81.942050][ T5670] do_unlinkat+0x31c/0x600 [ 81.942656][ T5670] __arm64_sys_unlinkat+0xe0/0xfc [ 81.943338][ T5670] invoke_syscall+0x98/0x2b8 [ 81.943982][ T5670] el0_svc_common+0x138/0x258 [ 81.944597][ T5670] do_el0_svc+0x58/0x14c [ 81.945230][ T5670] el0_svc+0x78/0x1e0 [ 81.945776][ T5670] el0t_64_sync_handler+0xcc/0xe4 [ 81.946481][ T5670] el0t_64_sync+0x1a0/0x1a4 [ 81.947075][ T5670] irq event stamp: 78840 [ 81.947679][ T5670] hardirqs last enabled at (78839): [] __up_console_sem+0xb4/0x100 [ 81.948974][ T5670] hardirqs last disabled at (78840): [] el1_dbg+0x24/0x80 [ 81.950151][ T5670] softirqs last enabled at (78820): [] handle_softirqs+0xa4c/0xbf0 [ 81.951448][ T5670] softirqs last disabled at (78797): [] __irq_exit_rcu+0x240/0x440 [ 81.952734][ T5670] ---[ end trace 2689470f4b4bb196 ]--- [ 81.953949][ T5670] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 81.955309][ T5670] BTRFS info (device loop0): forced readonly [ 82.098429][ T5692] loop0: detected capacity change from 0 to 32768 [ 82.149011][ T5692] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.44 (5692) [ 82.199624][ T5692] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.200960][ T5692] BTRFS info (device loop0): using free space tree [ 82.201901][ T5692] BTRFS info (device loop0): has skinny extents [ 82.214341][ T5692] BTRFS info (device loop0): enabling ssd optimizations [ 82.227335][ T5692] FAULT_INJECTION: forcing a failure. [ 82.227335][ T5692] name failslab, interval 1, probability 0, space 0, times 0 [ 82.229255][ T5692] CPU: 1 PID: 5692 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 82.230414][ T5692] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.231762][ T5692] Call trace: [ 82.232209][ T5692] dump_backtrace+0x0/0x43c [ 82.232850][ T5692] show_stack+0x2c/0x3c [ 82.233426][ T5692] __dump_stack+0x30/0x40 [ 82.234028][ T5692] dump_stack_lvl+0xf8/0x160 [ 82.234682][ T5692] dump_stack+0x1c/0x5c [ 82.235222][ T5692] should_fail+0x3c0/0x51c [ 82.235794][ T5692] __should_failslab+0xbc/0x10c [ 82.236472][ T5692] should_failslab+0x10/0x28 [ 82.237057][ T5692] slab_pre_alloc_hook+0x64/0xec [ 82.237740][ T5692] kmem_cache_alloc_trace+0x98/0x3fc [ 82.238498][ T5692] btrfs_delete_delayed_dir_index+0x220/0x550 [ 82.239401][ T5692] __btrfs_unlink_inode+0x34c/0xb00 [ 82.240131][ T5692] btrfs_unlink+0x108/0x258 [ 82.240787][ T5692] vfs_unlink+0x2e0/0x4f4 [ 82.241397][ T5692] do_unlinkat+0x31c/0x600 [ 82.242047][ T5692] __arm64_sys_unlinkat+0xe0/0xfc [ 82.242715][ T5692] invoke_syscall+0x98/0x2b8 [ 82.243323][ T5692] el0_svc_common+0x138/0x258 [ 82.243984][ T5692] do_el0_svc+0x58/0x14c [ 82.244634][ T5692] el0_svc+0x78/0x1e0 [ 82.245220][ T5692] el0t_64_sync_handler+0xcc/0xe4 [ 82.245928][ T5692] el0t_64_sync+0x1a0/0x1a4 [ 82.246621][ T5692] ------------[ cut here ]------------ [ 82.247625][ T5692] WARNING: CPU: 1 PID: 5692 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 82.248971][ T5692] Modules linked in: [ 82.249529][ T5692] CPU: 1 PID: 5692 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 82.250758][ T5692] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.252164][ T5692] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.253230][ T5692] pc : __btrfs_unlink_inode+0x908/0xb00 [ 82.253960][ T5692] lr : __btrfs_unlink_inode+0x908/0xb00 [ 82.254663][ T5692] sp : ffff800023947a60 [ 82.255221][ T5692] x29: ffff800023947b10 x28: ffff0000c7cee000 x27: ffff0000ed18c410 [ 82.256342][ T5692] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d4d51dc0 [ 82.257438][ T5692] x23: 1ffff00004728f54 x22: dfff800000000000 x21: ffff0000ed119d70 [ 82.258594][ T5692] x20: ffff0000de24bf78 x19: 1fffe0001bc497ef x18: 0000000000000001 [ 82.259765][ T5692] x17: 0000000000000000 x16: ffff800008302168 x15: 00000000ffffffff [ 82.260906][ T5692] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 82.262052][ T5692] x11: 0000000000000000 x10: 0000000000000000 x9 : 58515a141b17ba00 [ 82.263296][ T5692] x8 : 58515a141b17ba00 x7 : 0000000000000001 x6 : 0000000000000001 [ 82.264391][ T5692] x5 : ffff800023947358 x4 : ffff80001426f520 x3 : ffff800008302278 [ 82.265570][ T5692] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 82.266762][ T5692] Call trace: [ 82.267237][ T5692] __btrfs_unlink_inode+0x908/0xb00 [ 82.268046][ T5692] btrfs_unlink+0x108/0x258 [ 82.268696][ T5692] vfs_unlink+0x2e0/0x4f4 [ 82.269298][ T5692] do_unlinkat+0x31c/0x600 [ 82.269923][ T5692] __arm64_sys_unlinkat+0xe0/0xfc [ 82.270705][ T5692] invoke_syscall+0x98/0x2b8 [ 82.271372][ T5692] el0_svc_common+0x138/0x258 [ 82.272039][ T5692] do_el0_svc+0x58/0x14c [ 82.272606][ T5692] el0_svc+0x78/0x1e0 [ 82.273165][ T5692] el0t_64_sync_handler+0xcc/0xe4 [ 82.273910][ T5692] el0t_64_sync+0x1a0/0x1a4 [ 82.274588][ T5692] irq event stamp: 79120 [ 82.275187][ T5692] hardirqs last enabled at (79119): [] __up_console_sem+0xb4/0x100 [ 82.276561][ T5692] hardirqs last disabled at (79120): [] el1_dbg+0x24/0x80 [ 82.277802][ T5692] softirqs last enabled at (79100): [] handle_softirqs+0xa4c/0xbf0 [ 82.279097][ T5692] softirqs last disabled at (79077): [] __irq_exit_rcu+0x240/0x440 [ 82.280452][ T5692] ---[ end trace 2689470f4b4bb197 ]--- [ 82.281329][ T5692] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 82.282669][ T5692] BTRFS info (device loop0): forced readonly [ 82.462885][ T5714] loop0: detected capacity change from 0 to 32768 [ 82.549059][ T5714] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.45 (5714) [ 82.599331][ T5714] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.600805][ T5714] BTRFS info (device loop0): using free space tree [ 82.601874][ T5714] BTRFS info (device loop0): has skinny extents [ 82.672757][ T5714] BTRFS info (device loop0): enabling ssd optimizations [ 82.679320][ T5714] FAULT_INJECTION: forcing a failure. [ 82.679320][ T5714] name failslab, interval 1, probability 0, space 0, times 0 [ 82.681205][ T5714] CPU: 1 PID: 5714 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 82.682338][ T5714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.683732][ T5714] Call trace: [ 82.684203][ T5714] dump_backtrace+0x0/0x43c [ 82.684839][ T5714] show_stack+0x2c/0x3c [ 82.685428][ T5714] __dump_stack+0x30/0x40 [ 82.686005][ T5714] dump_stack_lvl+0xf8/0x160 [ 82.686635][ T5714] dump_stack+0x1c/0x5c [ 82.687192][ T5714] should_fail+0x3c0/0x51c [ 82.687826][ T5714] __should_failslab+0xbc/0x10c [ 82.688573][ T5714] should_failslab+0x10/0x28 [ 82.689230][ T5714] slab_pre_alloc_hook+0x64/0xec [ 82.689948][ T5714] kmem_cache_alloc_trace+0x98/0x3fc [ 82.690687][ T5714] btrfs_delete_delayed_dir_index+0x220/0x550 [ 82.691491][ T5714] __btrfs_unlink_inode+0x34c/0xb00 [ 82.692250][ T5714] btrfs_unlink+0x108/0x258 [ 82.692925][ T5714] vfs_unlink+0x2e0/0x4f4 [ 82.693562][ T5714] do_unlinkat+0x31c/0x600 [ 82.694176][ T5714] __arm64_sys_unlinkat+0xe0/0xfc [ 82.694953][ T5714] invoke_syscall+0x98/0x2b8 [ 82.695627][ T5714] el0_svc_common+0x138/0x258 [ 82.696319][ T5714] do_el0_svc+0x58/0x14c [ 82.696866][ T5714] el0_svc+0x78/0x1e0 [ 82.697488][ T5714] el0t_64_sync_handler+0xcc/0xe4 [ 82.698235][ T5714] el0t_64_sync+0x1a0/0x1a4 [ 82.699126][ T5714] ------------[ cut here ]------------ [ 82.700115][ T5714] WARNING: CPU: 1 PID: 5714 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 82.701498][ T5714] Modules linked in: [ 82.702045][ T5714] CPU: 1 PID: 5714 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 82.703283][ T5714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.704769][ T5714] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.705880][ T5714] pc : __btrfs_unlink_inode+0x908/0xb00 [ 82.706638][ T5714] lr : __btrfs_unlink_inode+0x908/0xb00 [ 82.707396][ T5714] sp : ffff800023bc7a60 [ 82.707926][ T5714] x29: ffff800023bc7b10 x28: ffff0000d2fde000 x27: ffff0000ed18ec10 [ 82.709060][ T5714] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cba82dc0 [ 82.710169][ T5714] x23: 1ffff00004778f54 x22: dfff800000000000 x21: ffff0000ed1189d0 [ 82.711324][ T5714] x20: ffff0000de24b3c8 x19: 1fffe0001bc49679 x18: 0000000000000001 [ 82.712497][ T5714] x17: 0000000000000000 x16: ffff800008302168 x15: 00000000ffffffff [ 82.713697][ T5714] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 82.714918][ T5714] x11: 0000000000000000 x10: 0000000000000000 x9 : 60ab65d89760a300 [ 82.716085][ T5714] x8 : 60ab65d89760a300 x7 : 0000000000000001 x6 : 0000000000000001 [ 82.717230][ T5714] x5 : ffff800023bc7358 x4 : ffff80001426f520 x3 : ffff800008302278 [ 82.718380][ T5714] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 82.719528][ T5714] Call trace: [ 82.720027][ T5714] __btrfs_unlink_inode+0x908/0xb00 [ 82.720759][ T5714] btrfs_unlink+0x108/0x258 [ 82.721454][ T5714] vfs_unlink+0x2e0/0x4f4 [ 82.722106][ T5714] do_unlinkat+0x31c/0x600 [ 82.722749][ T5714] __arm64_sys_unlinkat+0xe0/0xfc [ 82.723498][ T5714] invoke_syscall+0x98/0x2b8 [ 82.724190][ T5714] el0_svc_common+0x138/0x258 [ 82.724822][ T5714] do_el0_svc+0x58/0x14c [ 82.725447][ T5714] el0_svc+0x78/0x1e0 [ 82.726043][ T5714] el0t_64_sync_handler+0xcc/0xe4 [ 82.726817][ T5714] el0t_64_sync+0x1a0/0x1a4 [ 82.727420][ T5714] irq event stamp: 79030 [ 82.728063][ T5714] hardirqs last enabled at (79029): [] __up_console_sem+0xb4/0x100 [ 82.729418][ T5714] hardirqs last disabled at (79030): [] el1_dbg+0x24/0x80 [ 82.730679][ T5714] softirqs last enabled at (79010): [] handle_softirqs+0xa4c/0xbf0 [ 82.732047][ T5714] softirqs last disabled at (78975): [] __irq_exit_rcu+0x240/0x440 [ 82.733432][ T5714] ---[ end trace 2689470f4b4bb198 ]--- [ 82.746642][ T5714] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 82.748106][ T5714] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:22 executed programs: 33 [ 82.900381][ T5737] loop0: detected capacity change from 0 to 32768 [ 82.938891][ T5737] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.46 (5737) [ 82.980119][ T5737] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.981675][ T5737] BTRFS info (device loop0): using free space tree [ 82.982767][ T5737] BTRFS info (device loop0): has skinny extents [ 82.990101][ T5737] BTRFS info (device loop0): enabling ssd optimizations [ 82.994928][ T5737] FAULT_INJECTION: forcing a failure. [ 82.994928][ T5737] name failslab, interval 1, probability 0, space 0, times 0 [ 82.997121][ T5737] CPU: 1 PID: 5737 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 82.998506][ T5737] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.999980][ T5737] Call trace: [ 83.000444][ T5737] dump_backtrace+0x0/0x43c [ 83.001115][ T5737] show_stack+0x2c/0x3c [ 83.001713][ T5737] __dump_stack+0x30/0x40 [ 83.002352][ T5737] dump_stack_lvl+0xf8/0x160 [ 83.003012][ T5737] dump_stack+0x1c/0x5c [ 83.003641][ T5737] should_fail+0x3c0/0x51c [ 83.004242][ T5737] __should_failslab+0xbc/0x10c [ 83.004993][ T5737] should_failslab+0x10/0x28 [ 83.005719][ T5737] slab_pre_alloc_hook+0x64/0xec [ 83.006505][ T5737] kmem_cache_alloc_trace+0x98/0x3fc [ 83.007262][ T5737] btrfs_delete_delayed_dir_index+0x220/0x550 [ 83.008237][ T5737] __btrfs_unlink_inode+0x34c/0xb00 [ 83.009003][ T5737] btrfs_unlink+0x108/0x258 [ 83.009656][ T5737] vfs_unlink+0x2e0/0x4f4 [ 83.010324][ T5737] do_unlinkat+0x31c/0x600 [ 83.010999][ T5737] __arm64_sys_unlinkat+0xe0/0xfc [ 83.011734][ T5737] invoke_syscall+0x98/0x2b8 [ 83.012387][ T5737] el0_svc_common+0x138/0x258 [ 83.013036][ T5737] do_el0_svc+0x58/0x14c [ 83.013650][ T5737] el0_svc+0x78/0x1e0 [ 83.014262][ T5737] el0t_64_sync_handler+0xcc/0xe4 [ 83.014975][ T5737] el0t_64_sync+0x1a0/0x1a4 [ 83.028439][ T5737] ------------[ cut here ]------------ [ 83.029477][ T5737] WARNING: CPU: 1 PID: 5737 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 83.030737][ T5737] Modules linked in: [ 83.031280][ T5737] CPU: 1 PID: 5737 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 83.032478][ T5737] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.033861][ T5737] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.034964][ T5737] pc : __btrfs_unlink_inode+0x908/0xb00 [ 83.035776][ T5737] lr : __btrfs_unlink_inode+0x908/0xb00 [ 83.036613][ T5737] sp : ffff800023bc7a60 [ 83.037201][ T5737] x29: ffff800023bc7b10 x28: ffff0000edc94000 x27: ffff0000ed18e410 [ 83.038379][ T5737] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000e78044d0 [ 83.039524][ T5737] x23: 1ffff00004778f54 x22: dfff800000000000 x21: ffff0000ed11e220 [ 83.040705][ T5737] x20: ffff0000de24b318 x19: 1fffe0001bc49663 x18: 0000000000000001 [ 83.041783][ T5737] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 83.042862][ T5737] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 83.044081][ T5737] x11: 0000000000000000 x10: 0000000000000000 x9 : 11f7a9204d7f5600 [ 83.045231][ T5737] x8 : 11f7a9204d7f5600 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.046346][ T5737] x5 : ffff800023bc7358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 83.047591][ T5737] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.048782][ T5737] Call trace: [ 83.049251][ T5737] __btrfs_unlink_inode+0x908/0xb00 [ 83.049970][ T5737] btrfs_unlink+0x108/0x258 [ 83.050643][ T5737] vfs_unlink+0x2e0/0x4f4 [ 83.051252][ T5737] do_unlinkat+0x31c/0x600 [ 83.051834][ T5737] __arm64_sys_unlinkat+0xe0/0xfc [ 83.052601][ T5737] invoke_syscall+0x98/0x2b8 [ 83.053239][ T5737] el0_svc_common+0x138/0x258 [ 83.053843][ T5737] do_el0_svc+0x58/0x14c [ 83.054433][ T5737] el0_svc+0x78/0x1e0 [ 83.054978][ T5737] el0t_64_sync_handler+0xcc/0xe4 [ 83.055677][ T5737] el0t_64_sync+0x1a0/0x1a4 [ 83.056293][ T5737] irq event stamp: 79476 [ 83.056879][ T5737] hardirqs last enabled at (79475): [] __up_console_sem+0xb4/0x100 [ 83.058177][ T5737] hardirqs last disabled at (79476): [] el1_dbg+0x24/0x80 [ 83.059468][ T5737] softirqs last enabled at (79456): [] handle_softirqs+0xa4c/0xbf0 [ 83.060877][ T5737] softirqs last disabled at (79439): [] __irq_exit_rcu+0x240/0x440 [ 83.062226][ T5737] ---[ end trace 2689470f4b4bb199 ]--- [ 83.065935][ T5737] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 83.067323][ T5737] BTRFS info (device loop0): forced readonly [ 83.202414][ T5759] loop0: detected capacity change from 0 to 32768 [ 83.302036][ T5759] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.47 (5759) [ 83.304992][ T5759] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.306461][ T5759] BTRFS info (device loop0): using free space tree [ 83.307360][ T5759] BTRFS info (device loop0): has skinny extents [ 83.315670][ T5759] BTRFS info (device loop0): enabling ssd optimizations [ 83.319536][ T5759] FAULT_INJECTION: forcing a failure. [ 83.319536][ T5759] name failslab, interval 1, probability 0, space 0, times 0 [ 83.321305][ T5759] CPU: 0 PID: 5759 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 83.322490][ T5759] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.324009][ T5759] Call trace: [ 83.324543][ T5759] dump_backtrace+0x0/0x43c [ 83.325186][ T5759] show_stack+0x2c/0x3c [ 83.325721][ T5759] __dump_stack+0x30/0x40 [ 83.326377][ T5759] dump_stack_lvl+0xf8/0x160 [ 83.327089][ T5759] dump_stack+0x1c/0x5c [ 83.327702][ T5759] should_fail+0x3c0/0x51c [ 83.328363][ T5759] __should_failslab+0xbc/0x10c [ 83.329165][ T5759] should_failslab+0x10/0x28 [ 83.329792][ T5759] slab_pre_alloc_hook+0x64/0xec [ 83.330493][ T5759] kmem_cache_alloc_trace+0x98/0x3fc [ 83.331245][ T5759] btrfs_delete_delayed_dir_index+0x220/0x550 [ 83.332101][ T5759] __btrfs_unlink_inode+0x34c/0xb00 [ 83.332834][ T5759] btrfs_unlink+0x108/0x258 [ 83.333513][ T5759] vfs_unlink+0x2e0/0x4f4 [ 83.334152][ T5759] do_unlinkat+0x31c/0x600 [ 83.334778][ T5759] __arm64_sys_unlinkat+0xe0/0xfc [ 83.335576][ T5759] invoke_syscall+0x98/0x2b8 [ 83.336235][ T5759] el0_svc_common+0x138/0x258 [ 83.336931][ T5759] do_el0_svc+0x58/0x14c [ 83.337486][ T5759] el0_svc+0x78/0x1e0 [ 83.338064][ T5759] el0t_64_sync_handler+0xcc/0xe4 [ 83.338804][ T5759] el0t_64_sync+0x1a0/0x1a4 [ 83.340268][ T5759] ------------[ cut here ]------------ [ 83.341235][ T5759] WARNING: CPU: 0 PID: 5759 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 83.342664][ T5759] Modules linked in: [ 83.343218][ T5759] CPU: 0 PID: 5759 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 83.344363][ T5759] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.345786][ T5759] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.346878][ T5759] pc : __btrfs_unlink_inode+0x908/0xb00 [ 83.347626][ T5759] lr : __btrfs_unlink_inode+0x908/0xb00 [ 83.348400][ T5759] sp : ffff800023a67a60 [ 83.349013][ T5759] x29: ffff800023a67b10 x28: ffff0000c93b4000 x27: ffff0000ed01c410 [ 83.350139][ T5759] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d4330630 [ 83.351285][ T5759] x23: 1ffff0000474cf54 x22: dfff800000000000 x21: ffff0000e27f44b0 [ 83.352391][ T5759] x20: ffff0000de1d9aa8 x19: 1fffe0001bc3b355 x18: 0000000000000001 [ 83.353521][ T5759] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 83.354651][ T5759] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 83.355796][ T5759] x11: 0000000000000000 x10: 0000000000000000 x9 : 21f58aa711f08d00 [ 83.356942][ T5759] x8 : 21f58aa711f08d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.358133][ T5759] x5 : ffff800023a67358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 83.359257][ T5759] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.360441][ T5759] Call trace: [ 83.360947][ T5759] __btrfs_unlink_inode+0x908/0xb00 [ 83.361731][ T5759] btrfs_unlink+0x108/0x258 [ 83.362373][ T5759] vfs_unlink+0x2e0/0x4f4 [ 83.363031][ T5759] do_unlinkat+0x31c/0x600 [ 83.363692][ T5759] __arm64_sys_unlinkat+0xe0/0xfc [ 83.364441][ T5759] invoke_syscall+0x98/0x2b8 [ 83.365119][ T5759] el0_svc_common+0x138/0x258 [ 83.365762][ T5759] do_el0_svc+0x58/0x14c [ 83.366373][ T5759] el0_svc+0x78/0x1e0 [ 83.366907][ T5759] el0t_64_sync_handler+0xcc/0xe4 [ 83.367617][ T5759] el0t_64_sync+0x1a0/0x1a4 [ 83.368308][ T5759] irq event stamp: 79010 [ 83.368935][ T5759] hardirqs last enabled at (79009): [] __up_console_sem+0xb4/0x100 [ 83.370408][ T5759] hardirqs last disabled at (79010): [] el1_dbg+0x24/0x80 [ 83.371672][ T5759] softirqs last enabled at (78990): [] handle_softirqs+0xa4c/0xbf0 [ 83.373038][ T5759] softirqs last disabled at (78973): [] __irq_exit_rcu+0x240/0x440 [ 83.374304][ T5759] ---[ end trace 2689470f4b4bb19a ]--- [ 83.375445][ T5759] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 83.377003][ T5759] BTRFS info (device loop0): forced readonly [ 83.505624][ T5781] loop0: detected capacity change from 0 to 32768 [ 83.542593][ T5781] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.48 (5781) [ 83.545791][ T5781] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.547133][ T5781] BTRFS info (device loop0): using free space tree [ 83.548164][ T5781] BTRFS info (device loop0): has skinny extents [ 83.556799][ T5781] BTRFS info (device loop0): enabling ssd optimizations [ 83.561921][ T5781] FAULT_INJECTION: forcing a failure. [ 83.561921][ T5781] name failslab, interval 1, probability 0, space 0, times 0 [ 83.563953][ T5781] CPU: 1 PID: 5781 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 83.565263][ T5781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.566712][ T5781] Call trace: [ 83.567206][ T5781] dump_backtrace+0x0/0x43c [ 83.567913][ T5781] show_stack+0x2c/0x3c [ 83.568518][ T5781] __dump_stack+0x30/0x40 [ 83.569153][ T5781] dump_stack_lvl+0xf8/0x160 [ 83.569798][ T5781] dump_stack+0x1c/0x5c [ 83.570390][ T5781] should_fail+0x3c0/0x51c [ 83.571062][ T5781] __should_failslab+0xbc/0x10c [ 83.571825][ T5781] should_failslab+0x10/0x28 [ 83.572514][ T5781] slab_pre_alloc_hook+0x64/0xec [ 83.573224][ T5781] kmem_cache_alloc_trace+0x98/0x3fc [ 83.574054][ T5781] btrfs_delete_delayed_dir_index+0x220/0x550 [ 83.574935][ T5781] __btrfs_unlink_inode+0x34c/0xb00 [ 83.575766][ T5781] btrfs_unlink+0x108/0x258 [ 83.576497][ T5781] vfs_unlink+0x2e0/0x4f4 [ 83.577247][ T5781] do_unlinkat+0x31c/0x600 [ 83.577984][ T5781] __arm64_sys_unlinkat+0xe0/0xfc [ 83.578746][ T5781] invoke_syscall+0x98/0x2b8 [ 83.579442][ T5781] el0_svc_common+0x138/0x258 [ 83.580106][ T5781] do_el0_svc+0x58/0x14c [ 83.580698][ T5781] el0_svc+0x78/0x1e0 [ 83.581261][ T5781] el0t_64_sync_handler+0xcc/0xe4 [ 83.581938][ T5781] el0t_64_sync+0x1a0/0x1a4 [ 83.583461][ T5781] ------------[ cut here ]------------ [ 83.584407][ T5781] WARNING: CPU: 1 PID: 5781 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 83.585700][ T5781] Modules linked in: [ 83.586265][ T5781] CPU: 1 PID: 5781 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 83.587473][ T5781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.588905][ T5781] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.590101][ T5781] pc : __btrfs_unlink_inode+0x908/0xb00 [ 83.590912][ T5781] lr : __btrfs_unlink_inode+0x908/0xb00 [ 83.591692][ T5781] sp : ffff800024157a60 [ 83.592306][ T5781] x29: ffff800024157b10 x28: ffff0000d23f2000 x27: ffff0000ed18d010 [ 83.593477][ T5781] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ecd1d840 [ 83.594682][ T5781] x23: 1ffff0000482af54 x22: dfff800000000000 x21: ffff0000ed13f5c0 [ 83.595810][ T5781] x20: ffff0000de24b948 x19: 1fffe0001bc49729 x18: 0000000000000001 [ 83.597003][ T5781] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 83.598144][ T5781] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 83.599237][ T5781] x11: 0000000000000000 x10: 0000000000000000 x9 : b37b72055c921100 [ 83.600346][ T5781] x8 : b37b72055c921100 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.601495][ T5781] x5 : ffff800024157358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 83.602717][ T5781] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.603950][ T5781] Call trace: [ 83.604457][ T5781] __btrfs_unlink_inode+0x908/0xb00 [ 83.605222][ T5781] btrfs_unlink+0x108/0x258 [ 83.605944][ T5781] vfs_unlink+0x2e0/0x4f4 [ 83.606588][ T5781] do_unlinkat+0x31c/0x600 [ 83.607252][ T5781] __arm64_sys_unlinkat+0xe0/0xfc [ 83.607979][ T5781] invoke_syscall+0x98/0x2b8 [ 83.608637][ T5781] el0_svc_common+0x138/0x258 [ 83.609264][ T5781] do_el0_svc+0x58/0x14c [ 83.609951][ T5781] el0_svc+0x78/0x1e0 [ 83.610609][ T5781] el0t_64_sync_handler+0xcc/0xe4 [ 83.611389][ T5781] el0t_64_sync+0x1a0/0x1a4 [ 83.612120][ T5781] irq event stamp: 79450 [ 83.612729][ T5781] hardirqs last enabled at (79449): [] __up_console_sem+0xb4/0x100 [ 83.614034][ T5781] hardirqs last disabled at (79450): [] el1_dbg+0x24/0x80 [ 83.615269][ T5781] softirqs last enabled at (79430): [] handle_softirqs+0xa4c/0xbf0 [ 83.616655][ T5781] softirqs last disabled at (79409): [] __irq_exit_rcu+0x240/0x440 [ 83.618097][ T5781] ---[ end trace 2689470f4b4bb19b ]--- [ 83.619174][ T5781] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 83.620571][ T5781] BTRFS info (device loop0): forced readonly [ 83.749821][ T5803] loop0: detected capacity change from 0 to 32768 [ 83.778909][ T5803] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.49 (5803) [ 83.829216][ T5803] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.830716][ T5803] BTRFS info (device loop0): using free space tree [ 83.831792][ T5803] BTRFS info (device loop0): has skinny extents [ 83.839520][ T5803] BTRFS info (device loop0): enabling ssd optimizations [ 83.849536][ T5803] FAULT_INJECTION: forcing a failure. [ 83.849536][ T5803] name failslab, interval 1, probability 0, space 0, times 0 [ 83.851585][ T5803] CPU: 1 PID: 5803 Comm: syz.0.49 Tainted: G W syzkaller #0 [ 83.852835][ T5803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.854282][ T5803] Call trace: [ 83.854765][ T5803] dump_backtrace+0x0/0x43c [ 83.855395][ T5803] show_stack+0x2c/0x3c [ 83.855999][ T5803] __dump_stack+0x30/0x40 [ 83.856649][ T5803] dump_stack_lvl+0xf8/0x160 [ 83.857347][ T5803] dump_stack+0x1c/0x5c [ 83.857944][ T5803] should_fail+0x3c0/0x51c [ 83.858615][ T5803] __should_failslab+0xbc/0x10c [ 83.859337][ T5803] should_failslab+0x10/0x28 [ 83.860022][ T5803] slab_pre_alloc_hook+0x64/0xec [ 83.860722][ T5803] kmem_cache_alloc_trace+0x98/0x3fc [ 83.861454][ T5803] btrfs_delete_delayed_dir_index+0x220/0x550 [ 83.862271][ T5803] __btrfs_unlink_inode+0x34c/0xb00 [ 83.863052][ T5803] btrfs_unlink+0x108/0x258 [ 83.863697][ T5803] vfs_unlink+0x2e0/0x4f4 [ 83.864318][ T5803] do_unlinkat+0x31c/0x600 [ 83.864976][ T5803] __arm64_sys_unlinkat+0xe0/0xfc [ 83.865706][ T5803] invoke_syscall+0x98/0x2b8 [ 83.866394][ T5803] el0_svc_common+0x138/0x258 [ 83.867093][ T5803] do_el0_svc+0x58/0x14c [ 83.867716][ T5803] el0_svc+0x78/0x1e0 [ 83.868272][ T5803] el0t_64_sync_handler+0xcc/0xe4 [ 83.868955][ T5803] el0t_64_sync+0x1a0/0x1a4 [ 83.869807][ T5803] ------------[ cut here ]------------ [ 83.871235][ T5803] WARNING: CPU: 1 PID: 5803 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 83.872594][ T5803] Modules linked in: [ 83.873111][ T5803] CPU: 1 PID: 5803 Comm: syz.0.49 Tainted: G W syzkaller #0 [ 83.874222][ T5803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.875618][ T5803] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.876685][ T5803] pc : __btrfs_unlink_inode+0x908/0xb00 [ 83.877445][ T5803] lr : __btrfs_unlink_inode+0x908/0xb00 [ 83.878279][ T5803] sp : ffff800023e97a60 [ 83.878864][ T5803] x29: ffff800023e97b10 x28: ffff0000d8fc6000 x27: ffff0000ed18f010 [ 83.879976][ T5803] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d99d60b0 [ 83.881116][ T5803] x23: 1ffff000047d2f54 x22: dfff800000000000 x21: ffff0000ed1a1d70 [ 83.882301][ T5803] x20: ffff0000de24be18 x19: 1fffe0001bc497c3 x18: 0000000000000001 [ 83.883603][ T5803] x17: 0000000000000000 x16: ffff8000111cd488 x15: 00000000ffffffff [ 83.884860][ T5803] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 83.886006][ T5803] x11: 0000000000000000 x10: 0000000000000000 x9 : ba1f6689068a4800 [ 83.887215][ T5803] x8 : ba1f6689068a4800 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.888390][ T5803] x5 : ffff800023e97358 x4 : ffff80001426f520 x3 : ffff800008504400 [ 83.889565][ T5803] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.890767][ T5803] Call trace: [ 83.891295][ T5803] __btrfs_unlink_inode+0x908/0xb00 [ 83.892142][ T5803] btrfs_unlink+0x108/0x258 [ 83.892835][ T5803] vfs_unlink+0x2e0/0x4f4 [ 83.893504][ T5803] do_unlinkat+0x31c/0x600 [ 83.894115][ T5803] __arm64_sys_unlinkat+0xe0/0xfc [ 83.894909][ T5803] invoke_syscall+0x98/0x2b8 [ 83.895592][ T5803] el0_svc_common+0x138/0x258 [ 83.896269][ T5803] do_el0_svc+0x58/0x14c [ 83.896888][ T5803] el0_svc+0x78/0x1e0 [ 83.897440][ T5803] el0t_64_sync_handler+0xcc/0xe4 [ 83.898197][ T5803] el0t_64_sync+0x1a0/0x1a4 [ 83.898849][ T5803] irq event stamp: 78464 [ 83.899447][ T5803] hardirqs last enabled at (78463): [] __up_console_sem+0xb4/0x100 [ 83.900731][ T5803] hardirqs last disabled at (78464): [] el1_dbg+0x24/0x80 [ 83.902050][ T5803] softirqs last enabled at (78438): [] handle_softirqs+0xa4c/0xbf0 [ 83.903577][ T5803] softirqs last disabled at (78425): [] __irq_exit_rcu+0x240/0x440 [ 83.904938][ T5803] ---[ end trace 2689470f4b4bb19c ]--- [ 83.908289][ T5803] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 83.909658][ T5803] BTRFS info (device loop0): forced readonly [ 84.037843][ T5825] loop0: detected capacity change from 0 to 32768 [ 84.092074][ T5825] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.50 (5825) [ 84.096339][ T5825] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 84.097692][ T5825] BTRFS info (device loop0): using free space tree [ 84.099101][ T5825] BTRFS info (device loop0): has skinny extents [ 84.106056][ T5825] BTRFS info (device loop0): enabling ssd optimizations [ 84.110860][ T5825] FAULT_INJECTION: forcing a failure. [ 84.110860][ T5825] name failslab, interval 1, probability 0, space 0, times 0 [ 84.112741][ T5825] CPU: 1 PID: 5825 Comm: syz.0.50 Tainted: G W syzkaller #0 [ 84.114112][ T5825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.115603][ T5825] Call trace: [ 84.116069][ T5825] dump_backtrace+0x0/0x43c [ 84.116756][ T5825] show_stack+0x2c/0x3c [ 84.117323][ T5825] __dump_stack+0x30/0x40 [ 84.118058][ T5825] dump_stack_lvl+0xf8/0x160 [ 84.118775][ T5825] dump_stack+0x1c/0x5c