Warning: Permanently added '10.128.1.12' (ED25519) to the list of known hosts. 1970/01/01 00:01:04 ignoring optional flag "type"="gce" 1970/01/01 00:01:04 parsed 1 programs [ 66.353085][ T4433] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 67.608478][ T4250] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.610875][ T4250] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.617742][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.621863][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.623065][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.624751][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 67.738566][ T4553] chnl_net:caif_netlink_parms(): no params data found [ 67.757975][ T4553] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.759293][ T4553] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.760866][ T4553] device bridge_slave_0 entered promiscuous mode [ 67.762890][ T4553] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.763975][ T4553] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.765399][ T4553] device bridge_slave_1 entered promiscuous mode [ 67.774416][ T4553] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.776887][ T4553] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.787764][ T4553] team0: Port device team_slave_0 added [ 67.790518][ T4553] team0: Port device team_slave_1 added [ 67.797881][ T4553] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.798976][ T4553] 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. [ 67.803069][ T4553] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.805213][ T4553] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.806249][ T4553] 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. [ 67.810942][ T4553] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.871394][ T4553] device hsr_slave_0 entered promiscuous mode [ 67.919557][ T4553] device hsr_slave_1 entered promiscuous mode [ 68.542237][ T4553] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.590737][ T4553] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.611174][ T4553] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.641665][ T4553] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.742307][ T4553] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.746341][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.747946][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.753697][ T4553] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.759115][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.760892][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.762319][ T346] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.763395][ T346] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.765376][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.767419][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.768973][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.770984][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.772111][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.775367][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.781784][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.791081][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.793063][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.794846][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.797569][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.799306][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.802189][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.803679][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.812243][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.813684][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.818124][ T4553] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.910439][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.911684][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.915772][ T4553] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.924492][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.926037][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.934792][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.936223][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.937837][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.939120][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.943959][ T4553] device veth0_vlan entered promiscuous mode [ 68.947758][ T4553] device veth1_vlan entered promiscuous mode [ 68.956118][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.957636][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.958962][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 68.963595][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.967515][ T4553] device veth0_macvtap entered promiscuous mode [ 68.970742][ T4553] device veth1_macvtap entered promiscuous mode [ 68.976607][ T4553] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.977748][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.979219][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 68.986193][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.987766][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.992185][ T4553] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.994216][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.995764][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.998012][ T4553] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.999288][ T4553] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.003282][ T4553] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.004642][ T4553] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.404239][ T136] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.611097][ T2064] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.612241][ T2064] ieee802154 phy1 wpan1: encryption failed: -22 [ 69.620408][ T7] cfg80211: failed to load regulatory.db [ 72.453595][ T136] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.722577][ T136] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.774575][ T136] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:15 executed programs: 0 [ 75.520494][ T5007] chnl_net:caif_netlink_parms(): no params data found [ 75.543917][ T5007] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.545210][ T5007] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.546772][ T5007] device bridge_slave_0 entered promiscuous mode [ 75.548938][ T5007] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.550458][ T5007] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.551955][ T5007] device bridge_slave_1 entered promiscuous mode [ 75.560759][ T5007] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.563845][ T5007] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.574249][ T5007] team0: Port device team_slave_0 added [ 75.576109][ T5007] team0: Port device team_slave_1 added [ 75.585425][ T5007] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.586431][ T5007] 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. [ 75.590595][ T5007] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.593023][ T5007] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.594020][ T5007] 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. [ 75.597623][ T5007] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.641303][ T5007] device hsr_slave_0 entered promiscuous mode [ 75.669604][ T5007] device hsr_slave_1 entered promiscuous mode [ 75.719469][ T5007] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 75.720600][ T5007] Cannot create hsr debugfs directory [ 76.229977][ T5007] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.257090][ T5007] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.316877][ T5007] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.380734][ T5007] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.427611][ T5007] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.428788][ T5007] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.430065][ T5007] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.431135][ T5007] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.457232][ T5007] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.464095][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.465643][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.467185][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.476650][ T5007] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.480964][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 76.482708][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.484440][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.485453][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.490750][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 76.492712][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.494220][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.495311][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.502590][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 76.504427][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 76.511611][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 76.514224][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.515764][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 76.517569][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.523601][ T5007] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 76.525271][ T5007] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.531314][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.532853][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 76.534346][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.536386][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 76.537942][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.540475][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.587713][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.589002][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.593961][ T5007] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.601968][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 76.603499][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.614497][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 76.616261][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.618252][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.619925][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.623153][ T5007] device veth0_vlan entered promiscuous mode [ 76.626988][ T5007] device veth1_vlan entered promiscuous mode [ 76.637899][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.640166][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.641667][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.643183][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.646438][ T5007] device veth0_macvtap entered promiscuous mode [ 76.648964][ T5007] device veth1_macvtap entered promiscuous mode [ 76.657255][ T5007] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 76.658738][ T5007] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 76.662728][ T5007] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.664035][ T4250] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.665625][ T4250] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.667039][ T4250] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.668589][ T4250] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.673503][ T5007] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 76.675347][ T5007] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 76.677737][ T5007] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.678928][ T4250] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.680576][ T4250] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.683980][ T5007] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.685325][ T5007] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.686548][ T5007] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.687842][ T5007] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.723944][ T4250] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.725252][ T4250] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.727029][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 76.738860][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.740459][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.742045][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 76.888264][ T5139] loop0: detected capacity change from 0 to 32768 [ 76.925372][ T5139] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.15 (5139) [ 76.937729][ T5139] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.939120][ T5139] BTRFS info (device loop0): using free space tree [ 76.940247][ T5139] BTRFS info (device loop0): has skinny extents [ 76.951810][ T5139] BTRFS info (device loop0): enabling ssd optimizations [ 76.961582][ T5139] FAULT_INJECTION: forcing a failure. [ 76.961582][ T5139] name failslab, interval 1, probability 0, space 0, times 1 [ 76.963496][ T5139] CPU: 0 PID: 5139 Comm: syz.0.15 Not tainted syzkaller #0 [ 76.964453][ T5139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.965871][ T5139] Call trace: [ 76.966476][ T5139] dump_backtrace+0x0/0x43c [ 76.967156][ T5139] show_stack+0x2c/0x3c [ 76.967836][ T5139] __dump_stack+0x30/0x40 [ 76.968487][ T5139] dump_stack_lvl+0xf8/0x160 [ 76.969218][ T5139] dump_stack+0x1c/0x5c [ 76.969854][ T5139] should_fail+0x3c0/0x51c [ 76.970506][ T5139] __should_failslab+0xbc/0x10c [ 76.971222][ T5139] should_failslab+0x10/0x28 [ 76.971914][ T5139] slab_pre_alloc_hook+0x64/0xec [ 76.972699][ T5139] kmem_cache_alloc_trace+0x98/0x3fc [ 76.973486][ T5139] btrfs_delete_delayed_dir_index+0x220/0x550 [ 76.974347][ T5139] __btrfs_unlink_inode+0x34c/0xb00 [ 76.975108][ T5139] btrfs_unlink+0x108/0x258 [ 76.975755][ T5139] vfs_unlink+0x2e0/0x4f4 [ 76.976376][ T5139] do_unlinkat+0x31c/0x600 [ 76.977027][ T5139] __arm64_sys_unlinkat+0xe0/0xfc [ 76.977711][ T5139] invoke_syscall+0x98/0x2b8 [ 76.978367][ T5139] el0_svc_common+0x138/0x258 [ 76.979070][ T5139] do_el0_svc+0x58/0x14c [ 76.979734][ T5139] el0_svc+0x78/0x1e0 [ 76.980283][ T5139] el0t_64_sync_handler+0xcc/0xe4 [ 76.981034][ T5139] el0t_64_sync+0x1a0/0x1a4 [ 76.984338][ T5139] ------------[ cut here ]------------ [ 76.985296][ T5139] WARNING: CPU: 0 PID: 5139 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 76.986560][ T5139] Modules linked in: [ 76.987088][ T5139] CPU: 0 PID: 5139 Comm: syz.0.15 Not tainted syzkaller #0 [ 76.988011][ T5139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.989408][ T5139] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.990479][ T5139] pc : __btrfs_unlink_inode+0x908/0xb00 [ 76.991271][ T5139] lr : __btrfs_unlink_inode+0x908/0xb00 [ 76.992098][ T5139] sp : ffff800020087a60 [ 76.992690][ T5139] x29: ffff800020087b10 x28: ffff0000d8f90000 x27: ffff0000ec85c010 [ 76.993962][ T5139] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c8c8ab00 [ 76.995104][ T5139] x23: 1ffff00004010f54 x22: dfff800000000000 x21: ffff0000e2b88000 [ 76.996186][ T5139] x20: ffff0000dea18108 x19: 1fffe0001bd43021 x18: 0000000000000001 [ 76.997433][ T5139] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 76.998621][ T5139] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 76.999745][ T5139] x11: 0000000000000000 x10: 0000000000000000 x9 : fc44f409efb7e700 [ 77.000891][ T5139] x8 : fc44f409efb7e700 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.002052][ T5139] x5 : ffff800020087358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 77.003191][ T5139] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.004382][ T5139] Call trace: [ 77.004867][ T5139] __btrfs_unlink_inode+0x908/0xb00 [ 77.005637][ T5139] btrfs_unlink+0x108/0x258 [ 77.006245][ T5139] vfs_unlink+0x2e0/0x4f4 [ 77.006883][ T5139] do_unlinkat+0x31c/0x600 [ 77.007521][ T5139] __arm64_sys_unlinkat+0xe0/0xfc [ 77.008271][ T5139] invoke_syscall+0x98/0x2b8 [ 77.008973][ T5139] el0_svc_common+0x138/0x258 [ 77.009590][ T5139] do_el0_svc+0x58/0x14c [ 77.010259][ T5139] el0_svc+0x78/0x1e0 [ 77.010853][ T5139] el0t_64_sync_handler+0xcc/0xe4 [ 77.011531][ T5139] el0t_64_sync+0x1a0/0x1a4 [ 77.012153][ T5139] irq event stamp: 82418 [ 77.012776][ T5139] hardirqs last enabled at (82417): [] __up_console_sem+0xb4/0x100 [ 77.014224][ T5139] hardirqs last disabled at (82418): [] el1_dbg+0x24/0x80 [ 77.015483][ T5139] softirqs last enabled at (82398): [] handle_softirqs+0xa4c/0xbf0 [ 77.016896][ T5139] softirqs last disabled at (82373): [] __irq_exit_rcu+0x240/0x440 [ 77.018307][ T5139] ---[ end trace 064aab85e98fe825 ]--- [ 77.021613][ T5139] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 77.022931][ T5139] BTRFS info (device loop0): forced readonly [ 77.181039][ T5173] loop0: detected capacity change from 0 to 32768 [ 77.214713][ T5173] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.16 (5173) [ 77.220533][ T5173] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.221922][ T5173] BTRFS info (device loop0): using free space tree [ 77.222920][ T5173] BTRFS info (device loop0): has skinny extents [ 77.232776][ T5173] BTRFS info (device loop0): enabling ssd optimizations [ 77.242419][ T5173] FAULT_INJECTION: forcing a failure. [ 77.242419][ T5173] name failslab, interval 1, probability 0, space 0, times 0 [ 77.244514][ T5173] CPU: 0 PID: 5173 Comm: syz.0.16 Tainted: G W syzkaller #0 [ 77.245726][ T5173] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.247243][ T5173] Call trace: [ 77.247669][ T5173] dump_backtrace+0x0/0x43c [ 77.248277][ T5173] show_stack+0x2c/0x3c [ 77.248837][ T5173] __dump_stack+0x30/0x40 [ 77.249525][ T5173] dump_stack_lvl+0xf8/0x160 [ 77.250295][ T5173] dump_stack+0x1c/0x5c [ 77.250924][ T5173] should_fail+0x3c0/0x51c [ 77.251586][ T5173] __should_failslab+0xbc/0x10c [ 77.252339][ T5173] should_failslab+0x10/0x28 [ 77.253052][ T5173] slab_pre_alloc_hook+0x64/0xec [ 77.253720][ T5173] kmem_cache_alloc_trace+0x98/0x3fc [ 77.254460][ T5173] btrfs_delete_delayed_dir_index+0x220/0x550 [ 77.255273][ T5173] __btrfs_unlink_inode+0x34c/0xb00 [ 77.256028][ T5173] btrfs_unlink+0x108/0x258 [ 77.256735][ T5173] vfs_unlink+0x2e0/0x4f4 [ 77.257375][ T5173] do_unlinkat+0x31c/0x600 [ 77.258084][ T5173] __arm64_sys_unlinkat+0xe0/0xfc [ 77.258923][ T5173] invoke_syscall+0x98/0x2b8 [ 77.259651][ T5173] el0_svc_common+0x138/0x258 [ 77.260405][ T5173] do_el0_svc+0x58/0x14c [ 77.261081][ T5173] el0_svc+0x78/0x1e0 [ 77.261710][ T5173] el0t_64_sync_handler+0xcc/0xe4 [ 77.262469][ T5173] el0t_64_sync+0x1a0/0x1a4 [ 77.265689][ T5173] ------------[ cut here ]------------ [ 77.266642][ T5173] WARNING: CPU: 0 PID: 5173 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 77.267864][ T5173] Modules linked in: [ 77.268370][ T5173] CPU: 0 PID: 5173 Comm: syz.0.16 Tainted: G W syzkaller #0 [ 77.269619][ T5173] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.271184][ T5173] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.272289][ T5173] pc : __btrfs_unlink_inode+0x908/0xb00 [ 77.273135][ T5173] lr : __btrfs_unlink_inode+0x908/0xb00 [ 77.273919][ T5173] sp : ffff8000200a7a60 [ 77.274528][ T5173] x29: ffff8000200a7b10 x28: ffff0000da756000 x27: ffff0000ec85c410 [ 77.275714][ T5173] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cc3768f0 [ 77.276880][ T5173] x23: 1ffff00004014f54 x22: dfff800000000000 x21: ffff0000e2b89d70 [ 77.277997][ T5173] x20: ffff0000dea18268 x19: 1fffe0001bd4304d x18: 0000000000000001 [ 77.279203][ T5173] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 77.280381][ T5173] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 77.281614][ T5173] x11: 0000000000000000 x10: 0000000000000000 x9 : 353d016ffcecc600 [ 77.282781][ T5173] x8 : 353d016ffcecc600 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.283980][ T5173] x5 : ffff8000200a7358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 77.285142][ T5173] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.286349][ T5173] Call trace: [ 77.286848][ T5173] __btrfs_unlink_inode+0x908/0xb00 [ 77.287593][ T5173] btrfs_unlink+0x108/0x258 [ 77.288249][ T5173] vfs_unlink+0x2e0/0x4f4 [ 77.288861][ T5173] do_unlinkat+0x31c/0x600 [ 77.289505][ T5173] __arm64_sys_unlinkat+0xe0/0xfc [ 77.290223][ T5173] invoke_syscall+0x98/0x2b8 [ 77.290853][ T5173] el0_svc_common+0x138/0x258 [ 77.291473][ T5173] do_el0_svc+0x58/0x14c [ 77.292099][ T5173] el0_svc+0x78/0x1e0 [ 77.292690][ T5173] el0t_64_sync_handler+0xcc/0xe4 [ 77.293403][ T5173] el0t_64_sync+0x1a0/0x1a4 [ 77.294063][ T5173] irq event stamp: 81528 [ 77.294636][ T5173] hardirqs last enabled at (81527): [] __up_console_sem+0xb4/0x100 [ 77.296088][ T5173] hardirqs last disabled at (81528): [] el1_dbg+0x24/0x80 [ 77.297278][ T5173] softirqs last enabled at (81508): [] handle_softirqs+0xa4c/0xbf0 [ 77.298615][ T5173] softirqs last disabled at (81399): [] __irq_exit_rcu+0x240/0x440 [ 77.300131][ T5173] ---[ end trace 064aab85e98fe826 ]--- [ 77.303285][ T5173] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 77.304600][ T5173] BTRFS info (device loop0): forced readonly [ 77.452905][ T5195] loop0: detected capacity change from 0 to 32768 [ 77.511523][ T5195] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.17 (5195) [ 77.531282][ T4161] Bluetooth: hci0: command 0x0409 tx timeout [ 77.552504][ T5195] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.553947][ T5195] BTRFS info (device loop0): using free space tree [ 77.555062][ T5195] BTRFS info (device loop0): has skinny extents [ 77.572041][ T5195] BTRFS info (device loop0): enabling ssd optimizations [ 77.580956][ T5195] FAULT_INJECTION: forcing a failure. [ 77.580956][ T5195] name failslab, interval 1, probability 0, space 0, times 0 [ 77.582792][ T5195] CPU: 0 PID: 5195 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 77.584015][ T5195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.585331][ T5195] Call trace: [ 77.585795][ T5195] dump_backtrace+0x0/0x43c [ 77.586419][ T5195] show_stack+0x2c/0x3c [ 77.587078][ T5195] __dump_stack+0x30/0x40 [ 77.587729][ T5195] dump_stack_lvl+0xf8/0x160 [ 77.588389][ T5195] dump_stack+0x1c/0x5c [ 77.589005][ T5195] should_fail+0x3c0/0x51c [ 77.589721][ T5195] __should_failslab+0xbc/0x10c [ 77.590476][ T5195] should_failslab+0x10/0x28 [ 77.591188][ T5195] slab_pre_alloc_hook+0x64/0xec [ 77.591925][ T5195] kmem_cache_alloc_trace+0x98/0x3fc [ 77.592729][ T5195] btrfs_delete_delayed_dir_index+0x220/0x550 [ 77.593592][ T5195] __btrfs_unlink_inode+0x34c/0xb00 [ 77.594317][ T5195] btrfs_unlink+0x108/0x258 [ 77.595064][ T5195] vfs_unlink+0x2e0/0x4f4 [ 77.595764][ T5195] do_unlinkat+0x31c/0x600 [ 77.596449][ T5195] __arm64_sys_unlinkat+0xe0/0xfc [ 77.597239][ T5195] invoke_syscall+0x98/0x2b8 [ 77.597948][ T5195] el0_svc_common+0x138/0x258 [ 77.598592][ T5195] do_el0_svc+0x58/0x14c [ 77.599199][ T5195] el0_svc+0x78/0x1e0 [ 77.599839][ T5195] el0t_64_sync_handler+0xcc/0xe4 [ 77.600666][ T5195] el0t_64_sync+0x1a0/0x1a4 [ 77.603203][ T5195] ------------[ cut here ]------------ [ 77.604027][ T5195] WARNING: CPU: 0 PID: 5195 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 77.605259][ T5195] Modules linked in: [ 77.605821][ T5195] CPU: 0 PID: 5195 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 77.606982][ T5195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.608413][ T5195] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.609586][ T5195] pc : __btrfs_unlink_inode+0x908/0xb00 [ 77.610395][ T5195] lr : __btrfs_unlink_inode+0x908/0xb00 [ 77.611208][ T5195] sp : ffff800020947a60 [ 77.611817][ T5195] x29: ffff800020947b10 x28: ffff0000cb50c000 x27: ffff0000ec85c810 [ 77.613059][ T5195] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d66ad840 [ 77.614226][ T5195] x23: 1ffff00004128f54 x22: dfff800000000000 x21: ffff0000e2b8c4b0 [ 77.615394][ T5195] x20: ffff0000dea183c8 x19: 1fffe0001bd43079 x18: 0000000000000001 [ 77.616522][ T5195] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 77.617598][ T5195] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 77.618847][ T5195] x11: 0000000000000000 x10: 0000000000000000 x9 : 6146ccbb83184400 [ 77.620036][ T5195] x8 : 6146ccbb83184400 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.621220][ T5195] x5 : ffff800020947358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 77.622462][ T5195] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.623720][ T5195] Call trace: [ 77.624176][ T5195] __btrfs_unlink_inode+0x908/0xb00 [ 77.624983][ T5195] btrfs_unlink+0x108/0x258 [ 77.625641][ T5195] vfs_unlink+0x2e0/0x4f4 [ 77.626332][ T5195] do_unlinkat+0x31c/0x600 [ 77.627096][ T5195] __arm64_sys_unlinkat+0xe0/0xfc [ 77.627887][ T5195] invoke_syscall+0x98/0x2b8 [ 77.628625][ T5195] el0_svc_common+0x138/0x258 [ 77.629364][ T5195] do_el0_svc+0x58/0x14c [ 77.629995][ T5195] el0_svc+0x78/0x1e0 [ 77.630610][ T5195] el0t_64_sync_handler+0xcc/0xe4 [ 77.631285][ T5195] el0t_64_sync+0x1a0/0x1a4 [ 77.631935][ T5195] irq event stamp: 81492 [ 77.632505][ T5195] hardirqs last enabled at (81491): [] __up_console_sem+0xb4/0x100 [ 77.633787][ T5195] hardirqs last disabled at (81492): [] el1_dbg+0x24/0x80 [ 77.635022][ T5195] softirqs last enabled at (81472): [] handle_softirqs+0xa4c/0xbf0 [ 77.636405][ T5195] softirqs last disabled at (81405): [] __irq_exit_rcu+0x240/0x440 [ 77.637800][ T5195] ---[ end trace 064aab85e98fe827 ]--- [ 77.640958][ T5195] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 77.642314][ T5195] BTRFS info (device loop0): forced readonly [ 77.706907][ T136] device hsr_slave_0 left promiscuous mode [ 77.739923][ T136] device hsr_slave_1 left promiscuous mode [ 77.786559][ T5217] loop0: detected capacity change from 0 to 32768 [ 77.811269][ T5217] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.18 (5217) [ 77.819560][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 77.820751][ T136] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 77.823367][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 77.824565][ T136] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 77.825969][ T136] device bridge_slave_1 left promiscuous mode [ 77.826961][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.851499][ T5217] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.853054][ T5217] BTRFS info (device loop0): using free space tree [ 77.854041][ T5217] BTRFS info (device loop0): has skinny extents [ 77.871490][ T136] device bridge_slave_0 left promiscuous mode [ 77.872473][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.880640][ T5217] BTRFS info (device loop0): enabling ssd optimizations [ 77.884870][ T5217] FAULT_INJECTION: forcing a failure. [ 77.884870][ T5217] name failslab, interval 1, probability 0, space 0, times 0 [ 77.886930][ T5217] CPU: 0 PID: 5217 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 77.888096][ T5217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.889481][ T5217] Call trace: [ 77.890012][ T5217] dump_backtrace+0x0/0x43c [ 77.890697][ T5217] show_stack+0x2c/0x3c [ 77.891232][ T5217] __dump_stack+0x30/0x40 [ 77.891869][ T5217] dump_stack_lvl+0xf8/0x160 [ 77.892555][ T5217] dump_stack+0x1c/0x5c [ 77.893175][ T5217] should_fail+0x3c0/0x51c [ 77.893849][ T5217] __should_failslab+0xbc/0x10c [ 77.894537][ T5217] should_failslab+0x10/0x28 [ 77.895253][ T5217] slab_pre_alloc_hook+0x64/0xec [ 77.896027][ T5217] kmem_cache_alloc_trace+0x98/0x3fc [ 77.896813][ T5217] btrfs_delete_delayed_dir_index+0x220/0x550 [ 77.897650][ T5217] __btrfs_unlink_inode+0x34c/0xb00 [ 77.898413][ T5217] btrfs_unlink+0x108/0x258 [ 77.899088][ T5217] vfs_unlink+0x2e0/0x4f4 [ 77.899650][ T5217] do_unlinkat+0x31c/0x600 [ 77.900335][ T5217] __arm64_sys_unlinkat+0xe0/0xfc [ 77.901086][ T5217] invoke_syscall+0x98/0x2b8 [ 77.901774][ T5217] el0_svc_common+0x138/0x258 [ 77.902437][ T5217] do_el0_svc+0x58/0x14c [ 77.903068][ T5217] el0_svc+0x78/0x1e0 [ 77.903626][ T5217] el0t_64_sync_handler+0xcc/0xe4 [ 77.904335][ T5217] el0t_64_sync+0x1a0/0x1a4 [ 77.906541][ T5217] ------------[ cut here ]------------ [ 77.907451][ T5217] WARNING: CPU: 0 PID: 5217 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 77.908728][ T5217] Modules linked in: [ 77.909252][ T5217] CPU: 0 PID: 5217 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 77.910463][ T5217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.911834][ T5217] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.912891][ T5217] pc : __btrfs_unlink_inode+0x908/0xb00 [ 77.913626][ T5217] lr : __btrfs_unlink_inode+0x908/0xb00 [ 77.914362][ T5217] sp : ffff8000200a7a60 [ 77.914941][ T5217] x29: ffff8000200a7b10 x28: ffff0000d037e000 x27: ffff0000ec85cc10 [ 77.916063][ T5217] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ceb889a0 [ 77.917274][ T5217] x23: 1ffff00004014f54 x22: dfff800000000000 x21: ffff0000e2b8ebf0 [ 77.918458][ T5217] x20: ffff0000dea18528 x19: 1fffe0001bd430a5 x18: 0000000000000001 [ 77.919659][ T5217] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 77.920885][ T5217] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 77.922183][ T5217] x11: 0000000000000000 x10: 0000000000000000 x9 : 5695061ec5d64e00 [ 77.923381][ T5217] x8 : 5695061ec5d64e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.924637][ T5217] x5 : ffff8000200a7358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 77.925856][ T5217] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.927074][ T5217] Call trace: [ 77.927522][ T5217] __btrfs_unlink_inode+0x908/0xb00 [ 77.928337][ T5217] btrfs_unlink+0x108/0x258 [ 77.928972][ T5217] vfs_unlink+0x2e0/0x4f4 [ 77.929608][ T5217] do_unlinkat+0x31c/0x600 [ 77.930272][ T5217] __arm64_sys_unlinkat+0xe0/0xfc [ 77.930969][ T5217] invoke_syscall+0x98/0x2b8 [ 77.931699][ T5217] el0_svc_common+0x138/0x258 [ 77.932423][ T5217] do_el0_svc+0x58/0x14c [ 77.933047][ T5217] el0_svc+0x78/0x1e0 [ 77.933642][ T5217] el0t_64_sync_handler+0xcc/0xe4 [ 77.934373][ T5217] el0t_64_sync+0x1a0/0x1a4 [ 77.935031][ T5217] irq event stamp: 80652 [ 77.935623][ T5217] hardirqs last enabled at (80651): [] __up_console_sem+0xb4/0x100 [ 77.937025][ T5217] hardirqs last disabled at (80652): [] el1_dbg+0x24/0x80 [ 77.938338][ T5217] softirqs last enabled at (80632): [] handle_softirqs+0xa4c/0xbf0 [ 77.939653][ T5217] softirqs last disabled at (80601): [] __irq_exit_rcu+0x240/0x440 [ 77.941041][ T5217] ---[ end trace 064aab85e98fe828 ]--- [ 77.945174][ T5217] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 77.946690][ T5217] BTRFS info (device loop0): forced readonly [ 78.029564][ T136] device veth1_macvtap left promiscuous mode [ 78.030612][ T136] device veth0_macvtap left promiscuous mode [ 78.031661][ T136] device veth1_vlan left promiscuous mode [ 78.032598][ T136] device veth0_vlan left promiscuous mode [ 78.145548][ T5247] loop0: detected capacity change from 0 to 32768 [ 78.151986][ T5247] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.19 (5247) [ 78.155585][ T5247] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.156842][ T5247] BTRFS info (device loop0): using free space tree [ 78.157778][ T5247] BTRFS info (device loop0): has skinny extents [ 78.171478][ T136] team0 (unregistering): Port device team_slave_1 removed [ 78.176842][ T136] team0 (unregistering): Port device team_slave_0 removed [ 78.184488][ T136] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 78.193110][ T5247] BTRFS info (device loop0): enabling ssd optimizations [ 78.197823][ T5247] FAULT_INJECTION: forcing a failure. [ 78.197823][ T5247] name failslab, interval 1, probability 0, space 0, times 0 [ 78.200829][ T5247] CPU: 0 PID: 5247 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 78.202209][ T5247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.203710][ T5247] Call trace: [ 78.204174][ T5247] dump_backtrace+0x0/0x43c [ 78.204863][ T5247] show_stack+0x2c/0x3c [ 78.205443][ T5247] __dump_stack+0x30/0x40 [ 78.206036][ T5247] dump_stack_lvl+0xf8/0x160 [ 78.206633][ T5247] dump_stack+0x1c/0x5c [ 78.207271][ T5247] should_fail+0x3c0/0x51c [ 78.207856][ T5247] __should_failslab+0xbc/0x10c [ 78.208541][ T5247] should_failslab+0x10/0x28 [ 78.209201][ T5247] slab_pre_alloc_hook+0x64/0xec [ 78.209959][ T5247] kmem_cache_alloc_trace+0x98/0x3fc [ 78.210739][ T5247] btrfs_delete_delayed_dir_index+0x220/0x550 [ 78.211641][ T5247] __btrfs_unlink_inode+0x34c/0xb00 [ 78.212409][ T5247] btrfs_unlink+0x108/0x258 [ 78.213136][ T5247] vfs_unlink+0x2e0/0x4f4 [ 78.213766][ T5247] do_unlinkat+0x31c/0x600 [ 78.214462][ T5247] __arm64_sys_unlinkat+0xe0/0xfc [ 78.215190][ T5247] invoke_syscall+0x98/0x2b8 [ 78.215850][ T5247] el0_svc_common+0x138/0x258 [ 78.216553][ T5247] do_el0_svc+0x58/0x14c [ 78.217243][ T5247] el0_svc+0x78/0x1e0 [ 78.217883][ T5247] el0t_64_sync_handler+0xcc/0xe4 [ 78.218661][ T5247] el0t_64_sync+0x1a0/0x1a4 [ 78.222550][ T5247] ------------[ cut here ]------------ [ 78.223565][ T5247] WARNING: CPU: 1 PID: 5247 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 78.224987][ T5247] Modules linked in: [ 78.225547][ T5247] CPU: 1 PID: 5247 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 78.226844][ T5247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.228264][ T5247] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.229349][ T5247] pc : __btrfs_unlink_inode+0x908/0xb00 [ 78.230218][ T5247] lr : __btrfs_unlink_inode+0x908/0xb00 [ 78.230995][ T5247] sp : ffff800020937a60 [ 78.231670][ T5247] x29: ffff800020937b10 x28: ffff0000d0aec000 x27: ffff0000ec85d010 [ 78.232930][ T5247] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c96d1b00 [ 78.234218][ T5247] x23: 1ffff00004126f54 x22: dfff800000000000 x21: ffff0000ec9413a0 [ 78.235479][ T5247] x20: ffff0000dea18688 x19: 1fffe0001bd430d1 x18: 0000000000000001 [ 78.236739][ T5247] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 78.237920][ T5247] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 78.239078][ T5247] x11: 0000000000000000 x10: 0000000000000000 x9 : e83fc4900e387100 [ 78.240224][ T5247] x8 : e83fc4900e387100 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.241328][ T5247] x5 : ffff800020937358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 78.242437][ T5247] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.243536][ T5247] Call trace: [ 78.244014][ T5247] __btrfs_unlink_inode+0x908/0xb00 [ 78.244790][ T5247] btrfs_unlink+0x108/0x258 [ 78.245448][ T5247] vfs_unlink+0x2e0/0x4f4 [ 78.246123][ T5247] do_unlinkat+0x31c/0x600 [ 78.246744][ T5247] __arm64_sys_unlinkat+0xe0/0xfc [ 78.247482][ T5247] invoke_syscall+0x98/0x2b8 [ 78.248143][ T5247] el0_svc_common+0x138/0x258 [ 78.248831][ T5247] do_el0_svc+0x58/0x14c [ 78.249471][ T5247] el0_svc+0x78/0x1e0 [ 78.250110][ T5247] el0t_64_sync_handler+0xcc/0xe4 [ 78.250892][ T5247] el0t_64_sync+0x1a0/0x1a4 [ 78.251541][ T5247] irq event stamp: 80892 [ 78.252125][ T5247] hardirqs last enabled at (80891): [] __up_console_sem+0xb4/0x100 [ 78.253532][ T5247] hardirqs last disabled at (80892): [] el1_dbg+0x24/0x80 [ 78.254764][ T5247] softirqs last enabled at (80870): [] handle_softirqs+0xa4c/0xbf0 [ 78.256059][ T5247] softirqs last disabled at (80767): [] __irq_exit_rcu+0x240/0x440 [ 78.257431][ T5247] ---[ end trace 064aab85e98fe829 ]--- [ 78.261278][ T5247] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 78.262751][ T5247] BTRFS info (device loop0): forced readonly [ 78.266599][ T136] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 78.366861][ T136] bond0 (unregistering): Released all slaves [ 78.462598][ T5268] loop0: detected capacity change from 0 to 32768 [ 78.504280][ T5268] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.20 (5268) [ 78.508972][ T5268] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.511514][ T5268] BTRFS info (device loop0): using free space tree [ 78.512524][ T5268] BTRFS info (device loop0): has skinny extents [ 78.521328][ T5268] BTRFS info (device loop0): enabling ssd optimizations [ 78.525941][ T5268] FAULT_INJECTION: forcing a failure. [ 78.525941][ T5268] name failslab, interval 1, probability 0, space 0, times 0 [ 78.527954][ T5268] CPU: 0 PID: 5268 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 78.529246][ T5268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.530678][ T5268] Call trace: [ 78.531148][ T5268] dump_backtrace+0x0/0x43c [ 78.531820][ T5268] show_stack+0x2c/0x3c [ 78.532427][ T5268] __dump_stack+0x30/0x40 [ 78.533047][ T5268] dump_stack_lvl+0xf8/0x160 [ 78.533723][ T5268] dump_stack+0x1c/0x5c [ 78.534281][ T5268] should_fail+0x3c0/0x51c [ 78.534923][ T5268] __should_failslab+0xbc/0x10c [ 78.535605][ T5268] should_failslab+0x10/0x28 [ 78.536300][ T5268] slab_pre_alloc_hook+0x64/0xec [ 78.537011][ T5268] kmem_cache_alloc_trace+0x98/0x3fc [ 78.537779][ T5268] btrfs_delete_delayed_dir_index+0x220/0x550 [ 78.538743][ T5268] __btrfs_unlink_inode+0x34c/0xb00 [ 78.539541][ T5268] btrfs_unlink+0x108/0x258 [ 78.540192][ T5268] vfs_unlink+0x2e0/0x4f4 [ 78.540833][ T5268] do_unlinkat+0x31c/0x600 [ 78.541437][ T5268] __arm64_sys_unlinkat+0xe0/0xfc [ 78.542229][ T5268] invoke_syscall+0x98/0x2b8 [ 78.542870][ T5268] el0_svc_common+0x138/0x258 [ 78.543513][ T5268] do_el0_svc+0x58/0x14c [ 78.544185][ T5268] el0_svc+0x78/0x1e0 [ 78.544770][ T5268] el0t_64_sync_handler+0xcc/0xe4 [ 78.545492][ T5268] el0t_64_sync+0x1a0/0x1a4 [ 78.548126][ T5268] ------------[ cut here ]------------ [ 78.548994][ T5268] WARNING: CPU: 0 PID: 5268 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 78.550315][ T5268] Modules linked in: [ 78.550837][ T5268] CPU: 0 PID: 5268 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 78.552030][ T5268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.553463][ T5268] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.554584][ T5268] pc : __btrfs_unlink_inode+0x908/0xb00 [ 78.555424][ T5268] lr : __btrfs_unlink_inode+0x908/0xb00 [ 78.556260][ T5268] sp : ffff800021d17a60 [ 78.556866][ T5268] x29: ffff800021d17b10 x28: ffff0000d5976000 x27: ffff0000ec85d410 [ 78.558066][ T5268] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d942d840 [ 78.559257][ T5268] x23: 1ffff000043a2f54 x22: dfff800000000000 x21: ffff0000ec942740 [ 78.560450][ T5268] x20: ffff0000dea187e8 x19: 1fffe0001bd430fd x18: 0000000000000001 [ 78.561632][ T5268] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 78.562783][ T5268] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 78.564019][ T5268] x11: 0000000000000000 x10: 0000000000000000 x9 : 3f4deac89b397e00 [ 78.565213][ T5268] x8 : 3f4deac89b397e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.566566][ T5268] x5 : ffff800021d17358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 78.567666][ T5268] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.568811][ T5268] Call trace: [ 78.569278][ T5268] __btrfs_unlink_inode+0x908/0xb00 [ 78.570050][ T5268] btrfs_unlink+0x108/0x258 [ 78.570657][ T5268] vfs_unlink+0x2e0/0x4f4 [ 78.571253][ T5268] do_unlinkat+0x31c/0x600 [ 78.571894][ T5268] __arm64_sys_unlinkat+0xe0/0xfc [ 78.572655][ T5268] invoke_syscall+0x98/0x2b8 [ 78.573381][ T5268] el0_svc_common+0x138/0x258 [ 78.574095][ T5268] do_el0_svc+0x58/0x14c [ 78.574693][ T5268] el0_svc+0x78/0x1e0 [ 78.575321][ T5268] el0t_64_sync_handler+0xcc/0xe4 [ 78.576034][ T5268] el0t_64_sync+0x1a0/0x1a4 [ 78.576703][ T5268] irq event stamp: 80284 [ 78.577290][ T5268] hardirqs last enabled at (80283): [] __up_console_sem+0xb4/0x100 [ 78.578610][ T5268] hardirqs last disabled at (80284): [] el1_dbg+0x24/0x80 [ 78.579837][ T5268] softirqs last enabled at (80264): [] handle_softirqs+0xa4c/0xbf0 [ 78.581156][ T5268] softirqs last disabled at (80141): [] __irq_exit_rcu+0x240/0x440 [ 78.582520][ T5268] ---[ end trace 064aab85e98fe82a ]--- [ 78.585555][ T5268] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 78.586938][ T5268] BTRFS info (device loop0): forced readonly [ 78.728629][ T5290] loop0: detected capacity change from 0 to 32768 [ 78.771212][ T5290] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.21 (5290) [ 78.832445][ T5290] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.833918][ T5290] BTRFS info (device loop0): using free space tree [ 78.834881][ T5290] BTRFS info (device loop0): has skinny extents [ 78.843361][ T5290] BTRFS info (device loop0): enabling ssd optimizations [ 78.848144][ T5290] FAULT_INJECTION: forcing a failure. [ 78.848144][ T5290] name failslab, interval 1, probability 0, space 0, times 0 [ 78.851812][ T5290] CPU: 0 PID: 5290 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 78.852995][ T5290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.854473][ T5290] Call trace: [ 78.854948][ T5290] dump_backtrace+0x0/0x43c [ 78.855609][ T5290] show_stack+0x2c/0x3c [ 78.856205][ T5290] __dump_stack+0x30/0x40 [ 78.856791][ T5290] dump_stack_lvl+0xf8/0x160 [ 78.857409][ T5290] dump_stack+0x1c/0x5c [ 78.857996][ T5290] should_fail+0x3c0/0x51c [ 78.858622][ T5290] __should_failslab+0xbc/0x10c [ 78.859338][ T5290] should_failslab+0x10/0x28 [ 78.859999][ T5290] slab_pre_alloc_hook+0x64/0xec [ 78.860707][ T5290] kmem_cache_alloc_trace+0x98/0x3fc [ 78.861412][ T5290] btrfs_delete_delayed_dir_index+0x220/0x550 [ 78.862236][ T5290] __btrfs_unlink_inode+0x34c/0xb00 [ 78.863020][ T5290] btrfs_unlink+0x108/0x258 [ 78.863633][ T5290] vfs_unlink+0x2e0/0x4f4 [ 78.864238][ T5290] do_unlinkat+0x31c/0x600 [ 78.864898][ T5290] __arm64_sys_unlinkat+0xe0/0xfc [ 78.865618][ T5290] invoke_syscall+0x98/0x2b8 [ 78.866292][ T5290] el0_svc_common+0x138/0x258 [ 78.866956][ T5290] do_el0_svc+0x58/0x14c [ 78.867542][ T5290] el0_svc+0x78/0x1e0 [ 78.868073][ T5290] el0t_64_sync_handler+0xcc/0xe4 [ 78.868773][ T5290] el0t_64_sync+0x1a0/0x1a4 [ 78.871845][ T5290] ------------[ cut here ]------------ [ 78.872792][ T5290] WARNING: CPU: 0 PID: 5290 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 78.874158][ T5290] Modules linked in: [ 78.874725][ T5290] CPU: 0 PID: 5290 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 78.875866][ T5290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.877291][ T5290] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.878383][ T5290] pc : __btrfs_unlink_inode+0x908/0xb00 [ 78.879151][ T5290] lr : __btrfs_unlink_inode+0x908/0xb00 [ 78.879968][ T5290] sp : ffff800021d67a60 [ 78.880550][ T5290] x29: ffff800021d67b10 x28: ffff0000d005c000 x27: ffff0000ec85d810 [ 78.881693][ T5290] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c10ff840 [ 78.882892][ T5290] x23: 1ffff000043acf54 x22: dfff800000000000 x21: ffff0000ec9444b0 [ 78.884118][ T5290] x20: ffff0000dea18948 x19: 1fffe0001bd43129 x18: 0000000000000001 [ 78.885284][ T5290] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 78.886431][ T5290] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 78.887531][ T5290] x11: 0000000000000000 x10: 0000000000000000 x9 : a8e89c43ae494900 [ 78.888627][ T5290] x8 : a8e89c43ae494900 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.889802][ T5290] x5 : ffff800021d67358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 78.891019][ T5290] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.892149][ T5290] Call trace: [ 78.892572][ T5290] __btrfs_unlink_inode+0x908/0xb00 [ 78.893393][ T5290] btrfs_unlink+0x108/0x258 [ 78.894058][ T5290] vfs_unlink+0x2e0/0x4f4 [ 78.894632][ T5290] do_unlinkat+0x31c/0x600 [ 78.895258][ T5290] __arm64_sys_unlinkat+0xe0/0xfc [ 78.895947][ T5290] invoke_syscall+0x98/0x2b8 [ 78.896585][ T5290] el0_svc_common+0x138/0x258 [ 78.897255][ T5290] do_el0_svc+0x58/0x14c [ 78.897888][ T5290] el0_svc+0x78/0x1e0 [ 78.898475][ T5290] el0t_64_sync_handler+0xcc/0xe4 [ 78.899180][ T5290] el0t_64_sync+0x1a0/0x1a4 [ 78.899766][ T5290] irq event stamp: 79926 [ 78.900385][ T5290] hardirqs last enabled at (79925): [] __up_console_sem+0xb4/0x100 [ 78.901733][ T5290] hardirqs last disabled at (79926): [] el1_dbg+0x24/0x80 [ 78.903050][ T5290] softirqs last enabled at (79906): [] handle_softirqs+0xa4c/0xbf0 [ 78.904486][ T5290] softirqs last disabled at (79783): [] __irq_exit_rcu+0x240/0x440 [ 78.905838][ T5290] ---[ end trace 064aab85e98fe82b ]--- [ 78.909902][ T5290] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 78.911470][ T5290] BTRFS info (device loop0): forced readonly [ 79.053024][ T5312] loop0: detected capacity change from 0 to 32768 [ 79.095490][ T5312] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.22 (5312) [ 79.100729][ T5312] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.102337][ T5312] BTRFS info (device loop0): using free space tree [ 79.103283][ T5312] BTRFS info (device loop0): has skinny extents [ 79.122548][ T5312] BTRFS info (device loop0): enabling ssd optimizations [ 79.127126][ T5312] FAULT_INJECTION: forcing a failure. [ 79.127126][ T5312] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 79.129237][ T5312] CPU: 1 PID: 5312 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 79.130616][ T5312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.132204][ T5312] Call trace: [ 79.132693][ T5312] dump_backtrace+0x0/0x43c [ 79.133386][ T5312] show_stack+0x2c/0x3c [ 79.134008][ T5312] __dump_stack+0x30/0x40 [ 79.134647][ T5312] dump_stack_lvl+0xf8/0x160 [ 79.135322][ T5312] dump_stack+0x1c/0x5c [ 79.135974][ T5312] should_fail+0x3c0/0x51c [ 79.136628][ T5312] should_fail_alloc_page+0x74/0xa8 [ 79.137400][ T5312] prepare_alloc_pages+0x160/0x460 [ 79.138163][ T5312] __alloc_pages+0x108/0x470 [ 79.138808][ T5312] alloc_pages+0x34c/0x5c0 [ 79.139478][ T5312] new_slab+0xe0/0x55c [ 79.140040][ T5312] ___slab_alloc+0x6c0/0xda8 [ 79.140700][ T5312] __slab_alloc+0x68/0xc0 [ 79.141323][ T5312] kmem_cache_alloc+0x2ac/0x3e4 [ 79.141987][ T5312] btrfs_alloc_path+0x5c/0x68 [ 79.142695][ T5312] __btrfs_unlink_inode+0x1d8/0xb00 [ 79.143430][ T5312] btrfs_unlink+0x108/0x258 [ 79.144136][ T5312] vfs_unlink+0x2e0/0x4f4 [ 79.144774][ T5312] do_unlinkat+0x31c/0x600 [ 79.145457][ T5312] __arm64_sys_unlinkat+0xe0/0xfc [ 79.146162][ T5312] invoke_syscall+0x98/0x2b8 [ 79.146832][ T5312] el0_svc_common+0x138/0x258 [ 79.147469][ T5312] do_el0_svc+0x58/0x14c [ 79.148075][ T5312] el0_svc+0x78/0x1e0 [ 79.148654][ T5312] el0t_64_sync_handler+0xcc/0xe4 [ 79.149372][ T5312] el0t_64_sync+0x1a0/0x1a4 [ 79.321902][ T5334] loop0: detected capacity change from 0 to 32768 [ 79.330331][ T5334] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.23 (5334) [ 79.334986][ T5334] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.336304][ T5334] BTRFS info (device loop0): using free space tree [ 79.337212][ T5334] BTRFS info (device loop0): has skinny extents [ 79.345262][ T5334] BTRFS info (device loop0): enabling ssd optimizations [ 79.350422][ T5334] FAULT_INJECTION: forcing a failure. [ 79.350422][ T5334] name failslab, interval 1, probability 0, space 0, times 0 [ 79.352365][ T5334] CPU: 1 PID: 5334 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 79.353705][ T5334] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.355171][ T5334] Call trace: [ 79.355644][ T5334] dump_backtrace+0x0/0x43c [ 79.356277][ T5334] show_stack+0x2c/0x3c [ 79.356875][ T5334] __dump_stack+0x30/0x40 [ 79.357534][ T5334] dump_stack_lvl+0xf8/0x160 [ 79.358136][ T5334] dump_stack+0x1c/0x5c [ 79.358770][ T5334] should_fail+0x3c0/0x51c [ 79.359397][ T5334] __should_failslab+0xbc/0x10c [ 79.360112][ T5334] should_failslab+0x10/0x28 [ 79.360856][ T5334] slab_pre_alloc_hook+0x64/0xec [ 79.361611][ T5334] kmem_cache_alloc_trace+0x98/0x3fc [ 79.362388][ T5334] btrfs_delete_delayed_dir_index+0x220/0x550 [ 79.363312][ T5334] __btrfs_unlink_inode+0x34c/0xb00 [ 79.364072][ T5334] btrfs_unlink+0x108/0x258 [ 79.364735][ T5334] vfs_unlink+0x2e0/0x4f4 [ 79.365369][ T5334] do_unlinkat+0x31c/0x600 [ 79.366062][ T5334] __arm64_sys_unlinkat+0xe0/0xfc [ 79.366795][ T5334] invoke_syscall+0x98/0x2b8 [ 79.367488][ T5334] el0_svc_common+0x138/0x258 [ 79.368179][ T5334] do_el0_svc+0x58/0x14c [ 79.368827][ T5334] el0_svc+0x78/0x1e0 [ 79.369389][ T5334] el0t_64_sync_handler+0xcc/0xe4 [ 79.370111][ T5334] el0t_64_sync+0x1a0/0x1a4 [ 79.372442][ T5334] ------------[ cut here ]------------ [ 79.373369][ T5334] WARNING: CPU: 1 PID: 5334 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 79.374732][ T5334] Modules linked in: [ 79.375262][ T5334] CPU: 1 PID: 5334 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 79.376414][ T5334] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.377783][ T5334] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.378826][ T5334] pc : __btrfs_unlink_inode+0x908/0xb00 [ 79.379641][ T5334] lr : __btrfs_unlink_inode+0x908/0xb00 [ 79.380496][ T5334] sp : ffff80001fbb7a60 [ 79.381162][ T5334] x29: ffff80001fbb7b10 x28: ffff0000ec2ce000 x27: ffff0000e2a2c410 [ 79.382258][ T5334] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c12da420 [ 79.383413][ T5334] x23: 1ffff00003f76f54 x22: dfff800000000000 x21: ffff0000e2936bf0 [ 79.384522][ T5334] x20: ffff0000c0677478 x19: 1fffe000180cee8f x18: 0000000000000001 [ 79.385685][ T5334] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 79.386889][ T5334] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.388104][ T5334] x11: 0000000000000000 x10: 0000000000000000 x9 : 04c8970729496d00 [ 79.389307][ T5334] x8 : 04c8970729496d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.390451][ T5334] x5 : ffff80001fbb7358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 79.391645][ T5334] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.392867][ T5334] Call trace: [ 79.393377][ T5334] __btrfs_unlink_inode+0x908/0xb00 [ 79.394196][ T5334] btrfs_unlink+0x108/0x258 [ 79.394883][ T5334] vfs_unlink+0x2e0/0x4f4 [ 79.395489][ T5334] do_unlinkat+0x31c/0x600 [ 79.396193][ T5334] __arm64_sys_unlinkat+0xe0/0xfc [ 79.396874][ T5334] invoke_syscall+0x98/0x2b8 [ 79.397526][ T5334] el0_svc_common+0x138/0x258 [ 79.398208][ T5334] do_el0_svc+0x58/0x14c [ 79.398805][ T5334] el0_svc+0x78/0x1e0 [ 79.399331][ T5334] el0t_64_sync_handler+0xcc/0xe4 [ 79.400020][ T5334] el0t_64_sync+0x1a0/0x1a4 [ 79.400635][ T5334] irq event stamp: 81656 [ 79.401266][ T5334] hardirqs last enabled at (81655): [] __up_console_sem+0xb4/0x100 [ 79.402678][ T5334] hardirqs last disabled at (81656): [] el1_dbg+0x24/0x80 [ 79.403932][ T5334] softirqs last enabled at (81636): [] handle_softirqs+0xa4c/0xbf0 [ 79.405363][ T5334] softirqs last disabled at (81471): [] __irq_exit_rcu+0x240/0x440 [ 79.406818][ T5334] ---[ end trace 064aab85e98fe82c ]--- [ 79.408733][ T5334] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 79.410277][ T5334] BTRFS info (device loop0): forced readonly [ 79.560523][ T5356] loop0: detected capacity change from 0 to 32768 [ 79.619434][ T5169] Bluetooth: hci0: command 0x041b tx timeout [ 79.626396][ T5356] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.24 (5356) [ 79.687184][ T5356] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.688550][ T5356] BTRFS info (device loop0): using free space tree [ 79.692811][ T5356] BTRFS info (device loop0): has skinny extents [ 79.824404][ T5356] BTRFS info (device loop0): enabling ssd optimizations [ 79.831438][ T5356] FAULT_INJECTION: forcing a failure. [ 79.831438][ T5356] name failslab, interval 1, probability 0, space 0, times 0 [ 79.833321][ T5356] CPU: 0 PID: 5356 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 79.834561][ T5356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.836023][ T5356] Call trace: [ 79.836449][ T5356] dump_backtrace+0x0/0x43c [ 79.837056][ T5356] show_stack+0x2c/0x3c [ 79.837626][ T5356] __dump_stack+0x30/0x40 [ 79.838277][ T5356] dump_stack_lvl+0xf8/0x160 [ 79.838974][ T5356] dump_stack+0x1c/0x5c [ 79.839581][ T5356] should_fail+0x3c0/0x51c [ 79.840246][ T5356] __should_failslab+0xbc/0x10c [ 79.840951][ T5356] should_failslab+0x10/0x28 [ 79.841622][ T5356] slab_pre_alloc_hook+0x64/0xec [ 79.842326][ T5356] kmem_cache_alloc_trace+0x98/0x3fc [ 79.843073][ T5356] btrfs_delete_delayed_dir_index+0x220/0x550 [ 79.843902][ T5356] __btrfs_unlink_inode+0x34c/0xb00 [ 79.844580][ T5356] btrfs_unlink+0x108/0x258 [ 79.845215][ T5356] vfs_unlink+0x2e0/0x4f4 [ 79.845806][ T5356] do_unlinkat+0x31c/0x600 [ 79.846400][ T5356] __arm64_sys_unlinkat+0xe0/0xfc [ 79.847068][ T5356] invoke_syscall+0x98/0x2b8 [ 79.847714][ T5356] el0_svc_common+0x138/0x258 [ 79.848362][ T5356] do_el0_svc+0x58/0x14c [ 79.848962][ T5356] el0_svc+0x78/0x1e0 [ 79.849532][ T5356] el0t_64_sync_handler+0xcc/0xe4 [ 79.850249][ T5356] el0t_64_sync+0x1a0/0x1a4 [ 79.874330][ T5356] ------------[ cut here ]------------ [ 79.875315][ T5356] WARNING: CPU: 0 PID: 5356 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 79.876737][ T5356] Modules linked in: [ 79.877311][ T5356] CPU: 0 PID: 5356 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 79.878489][ T5356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.879969][ T5356] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.881233][ T5356] pc : __btrfs_unlink_inode+0x908/0xb00 [ 79.882191][ T5356] lr : __btrfs_unlink_inode+0x908/0xb00 [ 79.883002][ T5356] sp : ffff800021eb7a60 [ 79.883596][ T5356] x29: ffff800021eb7b10 x28: ffff0000dd516000 x27: ffff0000ec85dc10 [ 79.884790][ T5356] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c9af6210 [ 79.885870][ T5356] x23: 1ffff000043d6f54 x22: dfff800000000000 x21: ffff0000ec946bf0 [ 79.887028][ T5356] x20: ffff0000dea18c08 x19: 1fffe0001bd43181 x18: 0000000000000001 [ 79.888178][ T5356] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 79.889398][ T5356] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.890535][ T5356] x11: 0000000000000000 x10: 0000000000000000 x9 : f4b938cdd831b900 [ 79.891628][ T5356] x8 : f4b938cdd831b900 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.892802][ T5356] x5 : ffff800021eb7358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 79.893914][ T5356] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.895248][ T5356] Call trace: [ 79.895780][ T5356] __btrfs_unlink_inode+0x908/0xb00 [ 79.896603][ T5356] btrfs_unlink+0x108/0x258 [ 79.897281][ T5356] vfs_unlink+0x2e0/0x4f4 [ 79.897914][ T5356] do_unlinkat+0x31c/0x600 [ 79.898541][ T5356] __arm64_sys_unlinkat+0xe0/0xfc [ 79.899274][ T5356] invoke_syscall+0x98/0x2b8 [ 79.900036][ T5356] el0_svc_common+0x138/0x258 [ 79.900679][ T5356] do_el0_svc+0x58/0x14c [ 79.901350][ T5356] el0_svc+0x78/0x1e0 [ 79.901995][ T5356] el0t_64_sync_handler+0xcc/0xe4 [ 79.902712][ T5356] el0t_64_sync+0x1a0/0x1a4 [ 79.903324][ T5356] irq event stamp: 81012 [ 79.904028][ T5356] hardirqs last enabled at (81011): [] __up_console_sem+0xb4/0x100 [ 79.905534][ T5356] hardirqs last disabled at (81012): [] el1_dbg+0x24/0x80 [ 79.906788][ T5356] softirqs last enabled at (80992): [] handle_softirqs+0xa4c/0xbf0 [ 79.908188][ T5356] softirqs last disabled at (80969): [] __irq_exit_rcu+0x240/0x440 [ 79.909609][ T5356] ---[ end trace 064aab85e98fe82d ]--- [ 79.937547][ T5356] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 79.939136][ T5356] BTRFS info (device loop0): forced readonly [ 80.134379][ T5379] loop0: detected capacity change from 0 to 32768 [ 80.188515][ T5379] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.25 (5379) [ 80.193417][ T5379] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.194750][ T5379] BTRFS info (device loop0): using free space tree [ 80.195758][ T5379] BTRFS info (device loop0): has skinny extents [ 80.206600][ T5379] BTRFS info (device loop0): enabling ssd optimizations [ 80.211907][ T5379] FAULT_INJECTION: forcing a failure. [ 80.211907][ T5379] name failslab, interval 1, probability 0, space 0, times 0 [ 80.213835][ T5379] CPU: 1 PID: 5379 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 80.215016][ T5379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.216434][ T5379] Call trace: [ 80.216872][ T5379] dump_backtrace+0x0/0x43c [ 80.217487][ T5379] show_stack+0x2c/0x3c [ 80.218037][ T5379] __dump_stack+0x30/0x40 [ 80.218641][ T5379] dump_stack_lvl+0xf8/0x160 [ 80.219290][ T5379] dump_stack+0x1c/0x5c [ 80.219890][ T5379] should_fail+0x3c0/0x51c [ 80.220521][ T5379] __should_failslab+0xbc/0x10c [ 80.221228][ T5379] should_failslab+0x10/0x28 [ 80.221974][ T5379] slab_pre_alloc_hook+0x64/0xec [ 80.222684][ T5379] kmem_cache_alloc_trace+0x98/0x3fc [ 80.223415][ T5379] btrfs_delete_delayed_dir_index+0x220/0x550 [ 80.224355][ T5379] __btrfs_unlink_inode+0x34c/0xb00 [ 80.225216][ T5379] btrfs_unlink+0x108/0x258 [ 80.225872][ T5379] vfs_unlink+0x2e0/0x4f4 [ 80.226531][ T5379] do_unlinkat+0x31c/0x600 [ 80.227199][ T5379] __arm64_sys_unlinkat+0xe0/0xfc [ 80.227910][ T5379] invoke_syscall+0x98/0x2b8 [ 80.228562][ T5379] el0_svc_common+0x138/0x258 [ 80.229257][ T5379] do_el0_svc+0x58/0x14c [ 80.229947][ T5379] el0_svc+0x78/0x1e0 [ 80.230603][ T5379] el0t_64_sync_handler+0xcc/0xe4 [ 80.231409][ T5379] el0t_64_sync+0x1a0/0x1a4 [ 80.233000][ T5379] ------------[ cut here ]------------ [ 80.233920][ T5379] WARNING: CPU: 1 PID: 5379 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 80.235330][ T5379] Modules linked in: [ 80.235952][ T5379] CPU: 1 PID: 5379 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 80.237099][ T5379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.238550][ T5379] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.239648][ T5379] pc : __btrfs_unlink_inode+0x908/0xb00 [ 80.240493][ T5379] lr : __btrfs_unlink_inode+0x908/0xb00 [ 80.241254][ T5379] sp : ffff800022977a60 [ 80.241869][ T5379] x29: ffff800022977b10 x28: ffff0000db2ac000 x27: ffff0000e2a2c810 [ 80.243054][ T5379] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000dab28dc0 [ 80.244132][ T5379] x23: 1ffff0000452ef54 x22: dfff800000000000 x21: ffff0000dd391d70 [ 80.245219][ T5379] x20: ffff0000c06775d8 x19: 1fffe000180ceebb x18: 0000000000000001 [ 80.246377][ T5379] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 80.247575][ T5379] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 80.248791][ T5379] x11: 0000000000000000 x10: 0000000000000000 x9 : 04aed660b1458b00 [ 80.249946][ T5379] x8 : 04aed660b1458b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.251258][ T5379] x5 : ffff800022977358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 80.252501][ T5379] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.253695][ T5379] Call trace: [ 80.254169][ T5379] __btrfs_unlink_inode+0x908/0xb00 [ 80.254881][ T5379] btrfs_unlink+0x108/0x258 [ 80.255495][ T5379] vfs_unlink+0x2e0/0x4f4 [ 80.256119][ T5379] do_unlinkat+0x31c/0x600 [ 80.256786][ T5379] __arm64_sys_unlinkat+0xe0/0xfc [ 80.257534][ T5379] invoke_syscall+0x98/0x2b8 [ 80.258192][ T5379] el0_svc_common+0x138/0x258 [ 80.258949][ T5379] do_el0_svc+0x58/0x14c [ 80.259562][ T5379] el0_svc+0x78/0x1e0 [ 80.260127][ T5379] el0t_64_sync_handler+0xcc/0xe4 [ 80.260868][ T5379] el0t_64_sync+0x1a0/0x1a4 [ 80.261549][ T5379] irq event stamp: 81192 [ 80.262145][ T5379] hardirqs last enabled at (81191): [] __up_console_sem+0xb4/0x100 [ 80.263543][ T5379] hardirqs last disabled at (81192): [] el1_dbg+0x24/0x80 [ 80.264844][ T5379] softirqs last enabled at (81172): [] handle_softirqs+0xa4c/0xbf0 [ 80.266225][ T5379] softirqs last disabled at (81141): [] __irq_exit_rcu+0x240/0x440 [ 80.267628][ T5379] ---[ end trace 064aab85e98fe82e ]--- [ 80.270898][ T5379] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 80.272286][ T5379] BTRFS info (device loop0): forced readonly [ 80.441196][ T5401] loop0: detected capacity change from 0 to 32768 [ 80.481197][ T5401] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.26 (5401) [ 80.520640][ T5401] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.522036][ T5401] BTRFS info (device loop0): using free space tree [ 80.523063][ T5401] BTRFS info (device loop0): has skinny extents [ 80.531912][ T5401] BTRFS info (device loop0): enabling ssd optimizations [ 80.536233][ T5401] FAULT_INJECTION: forcing a failure. [ 80.536233][ T5401] name failslab, interval 1, probability 0, space 0, times 0 [ 80.538109][ T5401] CPU: 1 PID: 5401 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 80.539304][ T5401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.540718][ T5401] Call trace: [ 80.541187][ T5401] dump_backtrace+0x0/0x43c [ 80.541855][ T5401] show_stack+0x2c/0x3c [ 80.542421][ T5401] __dump_stack+0x30/0x40 [ 80.543054][ T5401] dump_stack_lvl+0xf8/0x160 [ 80.543709][ T5401] dump_stack+0x1c/0x5c [ 80.544335][ T5401] should_fail+0x3c0/0x51c [ 80.544948][ T5401] __should_failslab+0xbc/0x10c [ 80.545603][ T5401] should_failslab+0x10/0x28 [ 80.546242][ T5401] slab_pre_alloc_hook+0x64/0xec [ 80.546959][ T5401] kmem_cache_alloc_trace+0x98/0x3fc [ 80.547678][ T5401] btrfs_delete_delayed_dir_index+0x220/0x550 [ 80.548714][ T5401] __btrfs_unlink_inode+0x34c/0xb00 [ 80.549486][ T5401] btrfs_unlink+0x108/0x258 [ 80.550130][ T5401] vfs_unlink+0x2e0/0x4f4 [ 80.550721][ T5401] do_unlinkat+0x31c/0x600 [ 80.551405][ T5401] __arm64_sys_unlinkat+0xe0/0xfc [ 80.552130][ T5401] invoke_syscall+0x98/0x2b8 [ 80.552765][ T5401] el0_svc_common+0x138/0x258 [ 80.553412][ T5401] do_el0_svc+0x58/0x14c [ 80.554053][ T5401] el0_svc+0x78/0x1e0 [ 80.554623][ T5401] el0t_64_sync_handler+0xcc/0xe4 [ 80.555310][ T5401] el0t_64_sync+0x1a0/0x1a4 [ 80.556720][ T5401] ------------[ cut here ]------------ [ 80.557677][ T5401] WARNING: CPU: 1 PID: 5401 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 80.559030][ T5401] Modules linked in: [ 80.559627][ T5401] CPU: 1 PID: 5401 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 80.560814][ T5401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.562280][ T5401] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.563406][ T5401] pc : __btrfs_unlink_inode+0x908/0xb00 [ 80.564161][ T5401] lr : __btrfs_unlink_inode+0x908/0xb00 [ 80.564908][ T5401] sp : ffff8000230e7a60 [ 80.565468][ T5401] x29: ffff8000230e7b10 x28: ffff0000c549c000 x27: ffff0000e2a2cc10 [ 80.566548][ T5401] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d85dba50 [ 80.567794][ T5401] x23: 1ffff0000461cf54 x22: dfff800000000000 x21: ffff0000dd3944b0 [ 80.568965][ T5401] x20: ffff0000c0677738 x19: 1fffe000180ceee7 x18: 0000000000000001 [ 80.570121][ T5401] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 80.571256][ T5401] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 80.572417][ T5401] x11: 0000000000000000 x10: 0000000000000000 x9 : 41687b303eaaaf00 [ 80.573659][ T5401] x8 : 41687b303eaaaf00 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.574836][ T5401] x5 : ffff8000230e7358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 80.575975][ T5401] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.577041][ T5401] Call trace: [ 80.577500][ T5401] __btrfs_unlink_inode+0x908/0xb00 [ 80.578207][ T5401] btrfs_unlink+0x108/0x258 [ 80.578864][ T5401] vfs_unlink+0x2e0/0x4f4 [ 80.579467][ T5401] do_unlinkat+0x31c/0x600 [ 80.580137][ T5401] __arm64_sys_unlinkat+0xe0/0xfc [ 80.580864][ T5401] invoke_syscall+0x98/0x2b8 [ 80.581466][ T5401] el0_svc_common+0x138/0x258 [ 80.582066][ T5401] do_el0_svc+0x58/0x14c [ 80.582693][ T5401] el0_svc+0x78/0x1e0 [ 80.583236][ T5401] el0t_64_sync_handler+0xcc/0xe4 [ 80.583912][ T5401] el0t_64_sync+0x1a0/0x1a4 [ 80.584524][ T5401] irq event stamp: 79968 [ 80.585085][ T5401] hardirqs last enabled at (79967): [] __up_console_sem+0xb4/0x100 [ 80.586424][ T5401] hardirqs last disabled at (79968): [] el1_dbg+0x24/0x80 [ 80.587550][ T5401] softirqs last enabled at (79948): [] handle_softirqs+0xa4c/0xbf0 [ 80.588808][ T5401] softirqs last disabled at (79907): [] __irq_exit_rcu+0x240/0x440 [ 80.590098][ T5401] ---[ end trace 064aab85e98fe82f ]--- [ 80.591680][ T5401] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 80.593227][ T5401] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:20 executed programs: 14 [ 80.748827][ T5423] loop0: detected capacity change from 0 to 32768 [ 80.833982][ T5423] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.27 (5423) [ 80.837683][ T5423] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.839118][ T5423] BTRFS info (device loop0): using free space tree [ 80.840539][ T5423] BTRFS info (device loop0): has skinny extents [ 80.848373][ T5423] BTRFS info (device loop0): enabling ssd optimizations [ 80.854240][ T5423] FAULT_INJECTION: forcing a failure. [ 80.854240][ T5423] name failslab, interval 1, probability 0, space 0, times 0 [ 80.856052][ T5423] CPU: 0 PID: 5423 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 80.857261][ T5423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.858710][ T5423] Call trace: [ 80.859176][ T5423] dump_backtrace+0x0/0x43c [ 80.859829][ T5423] show_stack+0x2c/0x3c [ 80.860448][ T5423] __dump_stack+0x30/0x40 [ 80.861076][ T5423] dump_stack_lvl+0xf8/0x160 [ 80.861721][ T5423] dump_stack+0x1c/0x5c [ 80.862308][ T5423] should_fail+0x3c0/0x51c [ 80.862922][ T5423] __should_failslab+0xbc/0x10c [ 80.863607][ T5423] should_failslab+0x10/0x28 [ 80.864258][ T5423] slab_pre_alloc_hook+0x64/0xec [ 80.864924][ T5423] kmem_cache_alloc+0x94/0x3e4 [ 80.865596][ T5423] btrfs_alloc_path+0x5c/0x68 [ 80.866254][ T5423] __btrfs_unlink_inode+0x1d8/0xb00 [ 80.867014][ T5423] btrfs_unlink+0x108/0x258 [ 80.867679][ T5423] vfs_unlink+0x2e0/0x4f4 [ 80.868308][ T5423] do_unlinkat+0x31c/0x600 [ 80.868968][ T5423] __arm64_sys_unlinkat+0xe0/0xfc [ 80.869710][ T5423] invoke_syscall+0x98/0x2b8 [ 80.870362][ T5423] el0_svc_common+0x138/0x258 [ 80.871018][ T5423] do_el0_svc+0x58/0x14c [ 80.871613][ T5423] el0_svc+0x78/0x1e0 [ 80.872207][ T5423] el0t_64_sync_handler+0xcc/0xe4 [ 80.872924][ T5423] el0t_64_sync+0x1a0/0x1a4 [ 81.037931][ T5444] loop0: detected capacity change from 0 to 32768 [ 81.089459][ T5444] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.28 (5444) [ 81.093681][ T5444] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.095091][ T5444] BTRFS info (device loop0): using free space tree [ 81.096039][ T5444] BTRFS info (device loop0): has skinny extents [ 81.110134][ T5444] BTRFS info (device loop0): enabling ssd optimizations [ 81.115403][ T5444] FAULT_INJECTION: forcing a failure. [ 81.115403][ T5444] name failslab, interval 1, probability 0, space 0, times 0 [ 81.117398][ T5444] CPU: 0 PID: 5444 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 81.118558][ T5444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.119879][ T5444] Call trace: [ 81.120343][ T5444] dump_backtrace+0x0/0x43c [ 81.120950][ T5444] show_stack+0x2c/0x3c [ 81.121547][ T5444] __dump_stack+0x30/0x40 [ 81.122159][ T5444] dump_stack_lvl+0xf8/0x160 [ 81.122870][ T5444] dump_stack+0x1c/0x5c [ 81.123481][ T5444] should_fail+0x3c0/0x51c [ 81.124115][ T5444] __should_failslab+0xbc/0x10c [ 81.124870][ T5444] should_failslab+0x10/0x28 [ 81.125542][ T5444] slab_pre_alloc_hook+0x64/0xec [ 81.126290][ T5444] kmem_cache_alloc_trace+0x98/0x3fc [ 81.127080][ T5444] btrfs_delete_delayed_dir_index+0x220/0x550 [ 81.127878][ T5444] __btrfs_unlink_inode+0x34c/0xb00 [ 81.128623][ T5444] btrfs_unlink+0x108/0x258 [ 81.129271][ T5444] vfs_unlink+0x2e0/0x4f4 [ 81.129882][ T5444] do_unlinkat+0x31c/0x600 [ 81.130538][ T5444] __arm64_sys_unlinkat+0xe0/0xfc [ 81.131333][ T5444] invoke_syscall+0x98/0x2b8 [ 81.132035][ T5444] el0_svc_common+0x138/0x258 [ 81.132691][ T5444] do_el0_svc+0x58/0x14c [ 81.133289][ T5444] el0_svc+0x78/0x1e0 [ 81.133868][ T5444] el0t_64_sync_handler+0xcc/0xe4 [ 81.134574][ T5444] el0t_64_sync+0x1a0/0x1a4 [ 81.136967][ T5444] ------------[ cut here ]------------ [ 81.137810][ T5444] WARNING: CPU: 0 PID: 5444 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 81.139147][ T5444] Modules linked in: [ 81.139676][ T5444] CPU: 0 PID: 5444 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 81.140842][ T5444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.142286][ T5444] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.143397][ T5444] pc : __btrfs_unlink_inode+0x908/0xb00 [ 81.144159][ T5444] lr : __btrfs_unlink_inode+0x908/0xb00 [ 81.144934][ T5444] sp : ffff800023097a60 [ 81.145522][ T5444] x29: ffff800023097b10 x28: ffff0000cdbc2000 x27: ffff0000ec85c410 [ 81.146681][ T5444] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c8c8ad10 [ 81.147812][ T5444] x23: 1ffff00004612f54 x22: dfff800000000000 x21: ffff0000dd333ae0 [ 81.148993][ T5444] x20: ffff0000dea181b8 x19: 1fffe0001bd43037 x18: 0000000000000001 [ 81.150164][ T5444] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 81.151339][ T5444] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.152565][ T5444] x11: 0000000000000000 x10: 0000000000000000 x9 : 799239b499a5a600 [ 81.153725][ T5444] x8 : 799239b499a5a600 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.154883][ T5444] x5 : ffff800023097358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 81.155967][ T5444] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.157066][ T5444] Call trace: [ 81.157516][ T5444] __btrfs_unlink_inode+0x908/0xb00 [ 81.158222][ T5444] btrfs_unlink+0x108/0x258 [ 81.158867][ T5444] vfs_unlink+0x2e0/0x4f4 [ 81.159501][ T5444] do_unlinkat+0x31c/0x600 [ 81.160137][ T5444] __arm64_sys_unlinkat+0xe0/0xfc [ 81.160892][ T5444] invoke_syscall+0x98/0x2b8 [ 81.161563][ T5444] el0_svc_common+0x138/0x258 [ 81.162239][ T5444] do_el0_svc+0x58/0x14c [ 81.162862][ T5444] el0_svc+0x78/0x1e0 [ 81.163466][ T5444] el0t_64_sync_handler+0xcc/0xe4 [ 81.164219][ T5444] el0t_64_sync+0x1a0/0x1a4 [ 81.164860][ T5444] irq event stamp: 80796 [ 81.165468][ T5444] hardirqs last enabled at (80795): [] __up_console_sem+0xb4/0x100 [ 81.166874][ T5444] hardirqs last disabled at (80796): [] el1_dbg+0x24/0x80 [ 81.168104][ T5444] softirqs last enabled at (80776): [] handle_softirqs+0xa4c/0xbf0 [ 81.169448][ T5444] softirqs last disabled at (80645): [] __irq_exit_rcu+0x240/0x440 [ 81.170836][ T5444] ---[ end trace 064aab85e98fe830 ]--- [ 81.173011][ T5444] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 81.174490][ T5444] BTRFS info (device loop0): forced readonly [ 81.315506][ T5466] loop0: detected capacity change from 0 to 32768 [ 81.365432][ T5466] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.29 (5466) [ 81.368685][ T5466] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.370722][ T5466] BTRFS info (device loop0): using free space tree [ 81.371694][ T5466] BTRFS info (device loop0): has skinny extents [ 81.382341][ T5466] BTRFS info (device loop0): enabling ssd optimizations [ 81.389935][ T5466] FAULT_INJECTION: forcing a failure. [ 81.389935][ T5466] name failslab, interval 1, probability 0, space 0, times 0 [ 81.391813][ T5466] CPU: 0 PID: 5466 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 81.393197][ T5466] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.394630][ T5466] Call trace: [ 81.395114][ T5466] dump_backtrace+0x0/0x43c [ 81.395871][ T5466] show_stack+0x2c/0x3c [ 81.396485][ T5466] __dump_stack+0x30/0x40 [ 81.397120][ T5466] dump_stack_lvl+0xf8/0x160 [ 81.397762][ T5466] dump_stack+0x1c/0x5c [ 81.398362][ T5466] should_fail+0x3c0/0x51c [ 81.398987][ T5466] __should_failslab+0xbc/0x10c [ 81.399743][ T5466] should_failslab+0x10/0x28 [ 81.400392][ T5466] slab_pre_alloc_hook+0x64/0xec [ 81.401098][ T5466] kmem_cache_alloc_trace+0x98/0x3fc [ 81.401854][ T5466] btrfs_delete_delayed_dir_index+0x220/0x550 [ 81.402686][ T5466] __btrfs_unlink_inode+0x34c/0xb00 [ 81.403459][ T5466] btrfs_unlink+0x108/0x258 [ 81.404124][ T5466] vfs_unlink+0x2e0/0x4f4 [ 81.404754][ T5466] do_unlinkat+0x31c/0x600 [ 81.405379][ T5466] __arm64_sys_unlinkat+0xe0/0xfc [ 81.406172][ T5466] invoke_syscall+0x98/0x2b8 [ 81.406824][ T5466] el0_svc_common+0x138/0x258 [ 81.407478][ T5466] do_el0_svc+0x58/0x14c [ 81.408093][ T5466] el0_svc+0x78/0x1e0 [ 81.408629][ T5466] el0t_64_sync_handler+0xcc/0xe4 [ 81.409364][ T5466] el0t_64_sync+0x1a0/0x1a4 [ 81.410131][ T5466] ------------[ cut here ]------------ [ 81.411542][ T5466] WARNING: CPU: 0 PID: 5466 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 81.412804][ T5466] Modules linked in: [ 81.413360][ T5466] CPU: 0 PID: 5466 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 81.414562][ T5466] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.415892][ T5466] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.416965][ T5466] pc : __btrfs_unlink_inode+0x908/0xb00 [ 81.417812][ T5466] lr : __btrfs_unlink_inode+0x908/0xb00 [ 81.418556][ T5466] sp : ffff800023097a60 [ 81.419130][ T5466] x29: ffff800023097b10 x28: ffff0000ce0a2000 x27: ffff0000ec85e410 [ 81.420275][ T5466] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cefc78f0 [ 81.421478][ T5466] x23: 1ffff00004612f54 x22: dfff800000000000 x21: ffff0000dd335850 [ 81.422646][ T5466] x20: ffff0000dea18ec8 x19: 1fffe0001bd431d9 x18: 0000000000000001 [ 81.423784][ T5466] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 81.425002][ T5466] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.426338][ T5466] x11: 0000000000000000 x10: 0000000000000000 x9 : 06736b4e7d564100 [ 81.427612][ T5466] x8 : 06736b4e7d564100 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.428875][ T5466] x5 : ffff800023097358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 81.430084][ T5466] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.431343][ T5466] Call trace: [ 81.431792][ T5466] __btrfs_unlink_inode+0x908/0xb00 [ 81.432529][ T5466] btrfs_unlink+0x108/0x258 [ 81.433174][ T5466] vfs_unlink+0x2e0/0x4f4 [ 81.433820][ T5466] do_unlinkat+0x31c/0x600 [ 81.434482][ T5466] __arm64_sys_unlinkat+0xe0/0xfc [ 81.435190][ T5466] invoke_syscall+0x98/0x2b8 [ 81.435835][ T5466] el0_svc_common+0x138/0x258 [ 81.436486][ T5466] do_el0_svc+0x58/0x14c [ 81.437106][ T5466] el0_svc+0x78/0x1e0 [ 81.437682][ T5466] el0t_64_sync_handler+0xcc/0xe4 [ 81.438419][ T5466] el0t_64_sync+0x1a0/0x1a4 [ 81.439081][ T5466] irq event stamp: 80166 [ 81.439672][ T5466] hardirqs last enabled at (80165): [] __up_console_sem+0xb4/0x100 [ 81.441032][ T5466] hardirqs last disabled at (80166): [] el1_dbg+0x24/0x80 [ 81.442286][ T5466] softirqs last enabled at (80142): [] handle_softirqs+0xa4c/0xbf0 [ 81.443680][ T5466] softirqs last disabled at (80125): [] __irq_exit_rcu+0x240/0x440 [ 81.445089][ T5466] ---[ end trace 064aab85e98fe831 ]--- [ 81.446759][ T5466] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 81.448164][ T5466] BTRFS info (device loop0): forced readonly [ 81.639173][ T5487] loop0: detected capacity change from 0 to 32768 [ 81.692527][ T5245] Bluetooth: hci0: command 0x040f tx timeout [ 81.695651][ T5487] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.30 (5487) [ 81.701416][ T5487] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.702670][ T5487] BTRFS info (device loop0): using free space tree [ 81.703618][ T5487] BTRFS info (device loop0): has skinny extents [ 81.719993][ T5487] BTRFS info (device loop0): enabling ssd optimizations [ 81.724512][ T5487] FAULT_INJECTION: forcing a failure. [ 81.724512][ T5487] name failslab, interval 1, probability 0, space 0, times 0 [ 81.726481][ T5487] CPU: 1 PID: 5487 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 81.727709][ T5487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.729090][ T5487] Call trace: [ 81.729584][ T5487] dump_backtrace+0x0/0x43c [ 81.730239][ T5487] show_stack+0x2c/0x3c [ 81.730834][ T5487] __dump_stack+0x30/0x40 [ 81.731463][ T5487] dump_stack_lvl+0xf8/0x160 [ 81.732193][ T5487] dump_stack+0x1c/0x5c [ 81.732780][ T5487] should_fail+0x3c0/0x51c [ 81.733407][ T5487] __should_failslab+0xbc/0x10c [ 81.734111][ T5487] should_failslab+0x10/0x28 [ 81.734778][ T5487] slab_pre_alloc_hook+0x64/0xec [ 81.735496][ T5487] kmem_cache_alloc+0x94/0x3e4 [ 81.736174][ T5487] btrfs_alloc_path+0x5c/0x68 [ 81.736913][ T5487] __btrfs_unlink_inode+0x1d8/0xb00 [ 81.737704][ T5487] btrfs_unlink+0x108/0x258 [ 81.738402][ T5487] vfs_unlink+0x2e0/0x4f4 [ 81.739035][ T5487] do_unlinkat+0x31c/0x600 [ 81.739654][ T5487] __arm64_sys_unlinkat+0xe0/0xfc [ 81.740353][ T5487] invoke_syscall+0x98/0x2b8 [ 81.741013][ T5487] el0_svc_common+0x138/0x258 [ 81.741690][ T5487] do_el0_svc+0x58/0x14c [ 81.742292][ T5487] el0_svc+0x78/0x1e0 [ 81.742854][ T5487] el0t_64_sync_handler+0xcc/0xe4 [ 81.743559][ T5487] el0t_64_sync+0x1a0/0x1a4 [ 81.803698][ T4944] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4944) [ 81.901499][ T5508] loop0: detected capacity change from 0 to 32768 [ 81.965158][ T5508] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.966690][ T5508] BTRFS info (device loop0): using free space tree [ 81.967790][ T5508] BTRFS info (device loop0): has skinny extents [ 81.984621][ T5508] BTRFS info (device loop0): enabling ssd optimizations [ 81.989202][ T5508] FAULT_INJECTION: forcing a failure. [ 81.989202][ T5508] name failslab, interval 1, probability 0, space 0, times 0 [ 81.991429][ T5508] CPU: 0 PID: 5508 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 81.992697][ T5508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.994155][ T5508] Call trace: [ 81.994629][ T5508] dump_backtrace+0x0/0x43c [ 81.995256][ T5508] show_stack+0x2c/0x3c [ 81.995841][ T5508] __dump_stack+0x30/0x40 [ 81.996468][ T5508] dump_stack_lvl+0xf8/0x160 [ 81.997163][ T5508] dump_stack+0x1c/0x5c [ 81.997775][ T5508] should_fail+0x3c0/0x51c [ 81.998399][ T5508] __should_failslab+0xbc/0x10c [ 81.999105][ T5508] should_failslab+0x10/0x28 [ 81.999778][ T5508] slab_pre_alloc_hook+0x64/0xec [ 82.000494][ T5508] kmem_cache_alloc+0x94/0x3e4 [ 82.001200][ T5508] btrfs_alloc_path+0x5c/0x68 [ 82.001875][ T5508] __btrfs_unlink_inode+0x1d8/0xb00 [ 82.002670][ T5508] btrfs_unlink+0x108/0x258 [ 82.003331][ T5508] vfs_unlink+0x2e0/0x4f4 [ 82.003958][ T5508] do_unlinkat+0x31c/0x600 [ 82.004607][ T5508] __arm64_sys_unlinkat+0xe0/0xfc [ 82.005343][ T5508] invoke_syscall+0x98/0x2b8 [ 82.005988][ T5508] el0_svc_common+0x138/0x258 [ 82.006688][ T5508] do_el0_svc+0x58/0x14c [ 82.007283][ T5508] el0_svc+0x78/0x1e0 [ 82.007886][ T5508] el0t_64_sync_handler+0xcc/0xe4 [ 82.008632][ T5508] el0t_64_sync+0x1a0/0x1a4 [ 82.156675][ T5531] loop0: detected capacity change from 0 to 32768 [ 82.159134][ T5531] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.32 (5531) [ 82.163380][ T5531] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.164779][ T5531] BTRFS info (device loop0): using free space tree [ 82.165774][ T5531] BTRFS info (device loop0): has skinny extents [ 82.178361][ T5531] BTRFS info (device loop0): enabling ssd optimizations [ 82.187224][ T5531] FAULT_INJECTION: forcing a failure. [ 82.187224][ T5531] name failslab, interval 1, probability 0, space 0, times 0 [ 82.189387][ T5531] CPU: 1 PID: 5531 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 82.190635][ T5531] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.192118][ T5531] Call trace: [ 82.192581][ T5531] dump_backtrace+0x0/0x43c [ 82.193247][ T5531] show_stack+0x2c/0x3c [ 82.193812][ T5531] __dump_stack+0x30/0x40 [ 82.194438][ T5531] dump_stack_lvl+0xf8/0x160 [ 82.195153][ T5531] dump_stack+0x1c/0x5c [ 82.195748][ T5531] should_fail+0x3c0/0x51c [ 82.196457][ T5531] __should_failslab+0xbc/0x10c [ 82.197140][ T5531] should_failslab+0x10/0x28 [ 82.197750][ T5531] slab_pre_alloc_hook+0x64/0xec [ 82.198444][ T5531] kmem_cache_alloc+0x94/0x3e4 [ 82.199106][ T5531] btrfs_alloc_path+0x5c/0x68 [ 82.199828][ T5531] __btrfs_unlink_inode+0x1d8/0xb00 [ 82.200592][ T5531] btrfs_unlink+0x108/0x258 [ 82.201342][ T5531] vfs_unlink+0x2e0/0x4f4 [ 82.202014][ T5531] do_unlinkat+0x31c/0x600 [ 82.202680][ T5531] __arm64_sys_unlinkat+0xe0/0xfc [ 82.203405][ T5531] invoke_syscall+0x98/0x2b8 [ 82.204115][ T5531] el0_svc_common+0x138/0x258 [ 82.204832][ T5531] do_el0_svc+0x58/0x14c [ 82.205465][ T5531] el0_svc+0x78/0x1e0 [ 82.206015][ T5531] el0t_64_sync_handler+0xcc/0xe4 [ 82.206717][ T5531] el0t_64_sync+0x1a0/0x1a4 [ 82.282242][ T4944] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4944) [ 82.367046][ T5552] loop0: detected capacity change from 0 to 32768 [ 82.451958][ T5552] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.453902][ T5552] BTRFS info (device loop0): using free space tree [ 82.454851][ T5552] BTRFS info (device loop0): has skinny extents [ 82.467787][ T5552] BTRFS info (device loop0): enabling ssd optimizations [ 82.482143][ T5552] FAULT_INJECTION: forcing a failure. [ 82.482143][ T5552] name failslab, interval 1, probability 0, space 0, times 0 [ 82.483983][ T5552] CPU: 0 PID: 5552 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 82.485202][ T5552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.486616][ T5552] Call trace: [ 82.487091][ T5552] dump_backtrace+0x0/0x43c [ 82.487731][ T5552] show_stack+0x2c/0x3c [ 82.488264][ T5552] __dump_stack+0x30/0x40 [ 82.488858][ T5552] dump_stack_lvl+0xf8/0x160 [ 82.489568][ T5552] dump_stack+0x1c/0x5c [ 82.490152][ T5552] should_fail+0x3c0/0x51c [ 82.490809][ T5552] __should_failslab+0xbc/0x10c [ 82.491469][ T5552] should_failslab+0x10/0x28 [ 82.492122][ T5552] slab_pre_alloc_hook+0x64/0xec [ 82.492853][ T5552] kmem_cache_alloc+0x94/0x3e4 [ 82.493498][ T5552] btrfs_alloc_path+0x5c/0x68 [ 82.494174][ T5552] __btrfs_unlink_inode+0x1d8/0xb00 [ 82.494926][ T5552] btrfs_unlink+0x108/0x258 [ 82.495606][ T5552] vfs_unlink+0x2e0/0x4f4 [ 82.496226][ T5552] do_unlinkat+0x31c/0x600 [ 82.496902][ T5552] __arm64_sys_unlinkat+0xe0/0xfc [ 82.497634][ T5552] invoke_syscall+0x98/0x2b8 [ 82.498317][ T5552] el0_svc_common+0x138/0x258 [ 82.498996][ T5552] do_el0_svc+0x58/0x14c [ 82.499587][ T5552] el0_svc+0x78/0x1e0 [ 82.500075][ T5552] el0t_64_sync_handler+0xcc/0xe4 [ 82.500859][ T5552] el0t_64_sync+0x1a0/0x1a4 [ 82.543197][ T4944] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4944) [ 82.648262][ T5575] loop0: detected capacity change from 0 to 32768 [ 82.703735][ T5575] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.705296][ T5575] BTRFS info (device loop0): using free space tree [ 82.706323][ T5575] BTRFS info (device loop0): has skinny extents [ 82.714535][ T5575] BTRFS info (device loop0): enabling ssd optimizations [ 82.718898][ T5575] FAULT_INJECTION: forcing a failure. [ 82.718898][ T5575] name failslab, interval 1, probability 0, space 0, times 0 [ 82.721290][ T5575] CPU: 1 PID: 5575 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 82.722644][ T5575] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.724166][ T5575] Call trace: [ 82.724643][ T5575] dump_backtrace+0x0/0x43c [ 82.725289][ T5575] show_stack+0x2c/0x3c [ 82.725890][ T5575] __dump_stack+0x30/0x40 [ 82.726513][ T5575] dump_stack_lvl+0xf8/0x160 [ 82.727216][ T5575] dump_stack+0x1c/0x5c [ 82.727811][ T5575] should_fail+0x3c0/0x51c [ 82.728475][ T5575] __should_failslab+0xbc/0x10c [ 82.729114][ T5575] should_failslab+0x10/0x28 [ 82.729762][ T5575] slab_pre_alloc_hook+0x64/0xec [ 82.730457][ T5575] kmem_cache_alloc_trace+0x98/0x3fc [ 82.731195][ T5575] btrfs_delete_delayed_dir_index+0x220/0x550 [ 82.732060][ T5575] __btrfs_unlink_inode+0x34c/0xb00 [ 82.732838][ T5575] btrfs_unlink+0x108/0x258 [ 82.733524][ T5575] vfs_unlink+0x2e0/0x4f4 [ 82.734202][ T5575] do_unlinkat+0x31c/0x600 [ 82.734855][ T5575] __arm64_sys_unlinkat+0xe0/0xfc [ 82.735645][ T5575] invoke_syscall+0x98/0x2b8 [ 82.736291][ T5575] el0_svc_common+0x138/0x258 [ 82.736890][ T5575] do_el0_svc+0x58/0x14c [ 82.737461][ T5575] el0_svc+0x78/0x1e0 [ 82.738047][ T5575] el0t_64_sync_handler+0xcc/0xe4 [ 82.738705][ T5575] el0t_64_sync+0x1a0/0x1a4 [ 82.742162][ T5575] ------------[ cut here ]------------ [ 82.743192][ T5575] WARNING: CPU: 1 PID: 5575 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 82.744558][ T5575] Modules linked in: [ 82.745178][ T5575] CPU: 1 PID: 5575 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 82.746433][ T5575] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.747929][ T5575] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.749027][ T5575] pc : __btrfs_unlink_inode+0x908/0xb00 [ 82.749856][ T5575] lr : __btrfs_unlink_inode+0x908/0xb00 [ 82.750729][ T5575] sp : ffff800023ac7a60 [ 82.751309][ T5575] x29: ffff800023ac7b10 x28: ffff0000c1406000 x27: ffff0000e2a2d810 [ 82.752574][ T5575] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c96d1d10 [ 82.753785][ T5575] x23: 1ffff00004758f54 x22: dfff800000000000 x21: ffff0000ec943ae0 [ 82.754950][ T5575] x20: ffff0000c0677cb8 x19: 1fffe000180cef97 x18: 0000000000000001 [ 82.756137][ T5575] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 82.757310][ T5575] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 82.758428][ T5575] x11: 0000000000000000 x10: 0000000000000000 x9 : d88ffdf41a713900 [ 82.759629][ T5575] x8 : d88ffdf41a713900 x7 : 0000000000000001 x6 : 0000000000000001 [ 82.760810][ T5575] x5 : ffff800023ac7358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 82.761978][ T5575] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 82.763123][ T5575] Call trace: [ 82.763594][ T5575] __btrfs_unlink_inode+0x908/0xb00 [ 82.764403][ T5575] btrfs_unlink+0x108/0x258 [ 82.765066][ T5575] vfs_unlink+0x2e0/0x4f4 [ 82.765697][ T5575] do_unlinkat+0x31c/0x600 [ 82.766395][ T5575] __arm64_sys_unlinkat+0xe0/0xfc [ 82.767178][ T5575] invoke_syscall+0x98/0x2b8 [ 82.767901][ T5575] el0_svc_common+0x138/0x258 [ 82.768596][ T5575] do_el0_svc+0x58/0x14c [ 82.769241][ T5575] el0_svc+0x78/0x1e0 [ 82.769846][ T5575] el0t_64_sync_handler+0xcc/0xe4 [ 82.770572][ T5575] el0t_64_sync+0x1a0/0x1a4 [ 82.771181][ T5575] irq event stamp: 81298 [ 82.771808][ T5575] hardirqs last enabled at (81297): [] __up_console_sem+0xb4/0x100 [ 82.773211][ T5575] hardirqs last disabled at (81298): [] el1_dbg+0x24/0x80 [ 82.774491][ T5575] softirqs last enabled at (81278): [] handle_softirqs+0xa4c/0xbf0 [ 82.775795][ T5575] softirqs last disabled at (81089): [] __irq_exit_rcu+0x240/0x440 [ 82.777151][ T5575] ---[ end trace 064aab85e98fe832 ]--- [ 82.780384][ T5575] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 82.781880][ T5575] BTRFS info (device loop0): forced readonly [ 82.926511][ T5597] loop0: detected capacity change from 0 to 32768 [ 82.960712][ T5597] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.35 (5597) [ 83.011029][ T5597] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.012588][ T5597] BTRFS info (device loop0): using free space tree [ 83.013738][ T5597] BTRFS info (device loop0): has skinny extents [ 83.021781][ T5597] BTRFS info (device loop0): enabling ssd optimizations [ 83.026778][ T5597] FAULT_INJECTION: forcing a failure. [ 83.026778][ T5597] name failslab, interval 1, probability 0, space 0, times 0 [ 83.028617][ T5597] CPU: 0 PID: 5597 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 83.029845][ T5597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.031292][ T5597] Call trace: [ 83.031747][ T5597] dump_backtrace+0x0/0x43c [ 83.032414][ T5597] show_stack+0x2c/0x3c [ 83.033050][ T5597] __dump_stack+0x30/0x40 [ 83.033665][ T5597] dump_stack_lvl+0xf8/0x160 [ 83.034355][ T5597] dump_stack+0x1c/0x5c [ 83.034932][ T5597] should_fail+0x3c0/0x51c [ 83.035608][ T5597] __should_failslab+0xbc/0x10c [ 83.036381][ T5597] should_failslab+0x10/0x28 [ 83.037023][ T5597] slab_pre_alloc_hook+0x64/0xec [ 83.037728][ T5597] kmem_cache_alloc_trace+0x98/0x3fc [ 83.038465][ T5597] btrfs_delete_delayed_dir_index+0x220/0x550 [ 83.039383][ T5597] __btrfs_unlink_inode+0x34c/0xb00 [ 83.040150][ T5597] btrfs_unlink+0x108/0x258 [ 83.040852][ T5597] vfs_unlink+0x2e0/0x4f4 [ 83.041470][ T5597] do_unlinkat+0x31c/0x600 [ 83.042114][ T5597] __arm64_sys_unlinkat+0xe0/0xfc [ 83.042856][ T5597] invoke_syscall+0x98/0x2b8 [ 83.043527][ T5597] el0_svc_common+0x138/0x258 [ 83.044163][ T5597] do_el0_svc+0x58/0x14c [ 83.044775][ T5597] el0_svc+0x78/0x1e0 [ 83.045365][ T5597] el0t_64_sync_handler+0xcc/0xe4 [ 83.046079][ T5597] el0t_64_sync+0x1a0/0x1a4 [ 83.047572][ T5597] ------------[ cut here ]------------ [ 83.048513][ T5597] WARNING: CPU: 0 PID: 5597 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 83.049850][ T5597] Modules linked in: [ 83.050425][ T5597] CPU: 0 PID: 5597 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 83.051746][ T5597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.053199][ T5597] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.054333][ T5597] pc : __btrfs_unlink_inode+0x908/0xb00 [ 83.055167][ T5597] lr : __btrfs_unlink_inode+0x908/0xb00 [ 83.055922][ T5597] sp : ffff800023807a60 [ 83.056544][ T5597] x29: ffff800023807b10 x28: ffff0000d1a62000 x27: ffff0000e2a2dc10 [ 83.057669][ T5597] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000e81ff2c0 [ 83.058900][ T5597] x23: 1ffff00004700f54 x22: dfff800000000000 x21: ffff0000e2b8f5c0 [ 83.060028][ T5597] x20: ffff0000dd2e3108 x19: 1fffe0001ba5c621 x18: 0000000000000001 [ 83.061175][ T5597] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 83.062307][ T5597] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 83.063534][ T5597] x11: 0000000000000000 x10: 0000000000000000 x9 : 232255d1293dff00 [ 83.064776][ T5597] x8 : 232255d1293dff00 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.065996][ T5597] x5 : ffff800023807358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 83.067112][ T5597] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.068290][ T5597] Call trace: [ 83.068786][ T5597] __btrfs_unlink_inode+0x908/0xb00 [ 83.069517][ T5597] btrfs_unlink+0x108/0x258 [ 83.070172][ T5597] vfs_unlink+0x2e0/0x4f4 [ 83.070802][ T5597] do_unlinkat+0x31c/0x600 [ 83.071433][ T5597] __arm64_sys_unlinkat+0xe0/0xfc [ 83.072173][ T5597] invoke_syscall+0x98/0x2b8 [ 83.072902][ T5597] el0_svc_common+0x138/0x258 [ 83.073549][ T5597] do_el0_svc+0x58/0x14c [ 83.074097][ T5597] el0_svc+0x78/0x1e0 [ 83.074628][ T5597] el0t_64_sync_handler+0xcc/0xe4 [ 83.075321][ T5597] el0t_64_sync+0x1a0/0x1a4 [ 83.075923][ T5597] irq event stamp: 80196 [ 83.076509][ T5597] hardirqs last enabled at (80195): [] __up_console_sem+0xb4/0x100 [ 83.077789][ T5597] hardirqs last disabled at (80196): [] el1_dbg+0x24/0x80 [ 83.079081][ T5597] softirqs last enabled at (80176): [] handle_softirqs+0xa4c/0xbf0 [ 83.080434][ T5597] softirqs last disabled at (80147): [] __irq_exit_rcu+0x240/0x440 [ 83.081786][ T5597] ---[ end trace 064aab85e98fe833 ]--- [ 83.085455][ T5597] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 83.086811][ T5597] BTRFS info (device loop0): forced readonly [ 83.232768][ T5619] loop0: detected capacity change from 0 to 32768 [ 83.271222][ T5619] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.36 (5619) [ 83.312428][ T5619] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.313890][ T5619] BTRFS info (device loop0): using free space tree [ 83.314823][ T5619] BTRFS info (device loop0): has skinny extents [ 83.327151][ T5619] BTRFS info (device loop0): enabling ssd optimizations [ 83.340300][ T5619] FAULT_INJECTION: forcing a failure. [ 83.340300][ T5619] name failslab, interval 1, probability 0, space 0, times 0 [ 83.342168][ T5619] CPU: 0 PID: 5619 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 83.343399][ T5619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.344869][ T5619] Call trace: [ 83.345306][ T5619] dump_backtrace+0x0/0x43c [ 83.345916][ T5619] show_stack+0x2c/0x3c [ 83.346466][ T5619] __dump_stack+0x30/0x40 [ 83.347089][ T5619] dump_stack_lvl+0xf8/0x160 [ 83.347687][ T5619] dump_stack+0x1c/0x5c [ 83.348296][ T5619] should_fail+0x3c0/0x51c [ 83.348908][ T5619] __should_failslab+0xbc/0x10c [ 83.349648][ T5619] should_failslab+0x10/0x28 [ 83.350349][ T5619] slab_pre_alloc_hook+0x64/0xec [ 83.351095][ T5619] kmem_cache_alloc_trace+0x98/0x3fc [ 83.351876][ T5619] btrfs_delete_delayed_dir_index+0x220/0x550 [ 83.352752][ T5619] __btrfs_unlink_inode+0x34c/0xb00 [ 83.353488][ T5619] btrfs_unlink+0x108/0x258 [ 83.354166][ T5619] vfs_unlink+0x2e0/0x4f4 [ 83.354809][ T5619] do_unlinkat+0x31c/0x600 [ 83.355462][ T5619] __arm64_sys_unlinkat+0xe0/0xfc [ 83.356122][ T5619] invoke_syscall+0x98/0x2b8 [ 83.356718][ T5619] el0_svc_common+0x138/0x258 [ 83.357364][ T5619] do_el0_svc+0x58/0x14c [ 83.357960][ T5619] el0_svc+0x78/0x1e0 [ 83.358617][ T5619] el0t_64_sync_handler+0xcc/0xe4 [ 83.359322][ T5619] el0t_64_sync+0x1a0/0x1a4 [ 83.360135][ T5619] ------------[ cut here ]------------ [ 83.361079][ T5619] WARNING: CPU: 0 PID: 5619 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 83.362359][ T5619] Modules linked in: [ 83.362941][ T5619] CPU: 0 PID: 5619 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 83.364165][ T5619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.365618][ T5619] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.366746][ T5619] pc : __btrfs_unlink_inode+0x908/0xb00 [ 83.367537][ T5619] lr : __btrfs_unlink_inode+0x908/0xb00 [ 83.368292][ T5619] sp : ffff800023dc7a60 [ 83.368893][ T5619] x29: ffff800023dc7b10 x28: ffff0000c0d14000 x27: ffff0000ec85f010 [ 83.370047][ T5619] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000db855420 [ 83.371337][ T5619] x23: 1ffff000047b8f54 x22: dfff800000000000 x21: ffff0000e2a14e80 [ 83.372558][ T5619] x20: ffff0000dd2e3268 x19: 1fffe0001ba5c64d x18: 0000000000000001 [ 83.373739][ T5619] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 83.374821][ T5619] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 83.375930][ T5619] x11: 0000000000000000 x10: 0000000000000000 x9 : dff431f29c531400 [ 83.377096][ T5619] x8 : dff431f29c531400 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.378222][ T5619] x5 : ffff800023dc7358 x4 : ffff8000141ff5a0 x3 : ffff800008302274 [ 83.379316][ T5619] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.380475][ T5619] Call trace: [ 83.380972][ T5619] __btrfs_unlink_inode+0x908/0xb00 [ 83.381681][ T5619] btrfs_unlink+0x108/0x258 [ 83.382278][ T5619] vfs_unlink+0x2e0/0x4f4 [ 83.382873][ T5619] do_unlinkat+0x31c/0x600 [ 83.383479][ T5619] __arm64_sys_unlinkat+0xe0/0xfc [ 83.384149][ T5619] invoke_syscall+0x98/0x2b8 [ 83.384828][ T5619] el0_svc_common+0x138/0x258 [ 83.385515][ T5619] do_el0_svc+0x58/0x14c [ 83.386127][ T5619] el0_svc+0x78/0x1e0 [ 83.386790][ T5619] el0t_64_sync_handler+0xcc/0xe4 [ 83.387518][ T5619] el0t_64_sync+0x1a0/0x1a4 [ 83.388175][ T5619] irq event stamp: 79838 [ 83.388782][ T5619] hardirqs last enabled at (79837): [] __up_console_sem+0xb4/0x100 [ 83.390172][ T5619] hardirqs last disabled at (79838): [] el1_dbg+0x24/0x80 [ 83.391358][ T5619] softirqs last enabled at (79818): [] handle_softirqs+0xa4c/0xbf0 [ 83.392735][ T5619] softirqs last disabled at (79805): [] __irq_exit_rcu+0x240/0x440 [ 83.394161][ T5619] ---[ end trace 064aab85e98fe834 ]--- [ 83.399125][ T5619] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 83.401490][ T5619] BTRFS info (device loop0): forced readonly [ 83.544415][ T5641] loop0: detected capacity change from 0 to 32768 [ 83.630871][ T5641] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.37 (5641) [ 83.633795][ T5641] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.635173][ T5641] BTRFS info (device loop0): using free space tree [ 83.636109][ T5641] BTRFS info (device loop0): has skinny extents [ 83.648152][ T5641] BTRFS info (device loop0): enabling ssd optimizations [ 83.655703][ T5641] FAULT_INJECTION: forcing a failure. [ 83.655703][ T5641] name failslab, interval 1, probability 0, space 0, times 0 [ 83.657565][ T5641] CPU: 1 PID: 5641 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 83.658847][ T5641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.660343][ T5641] Call trace: [ 83.660840][ T5641] dump_backtrace+0x0/0x43c [ 83.661516][ T5641] show_stack+0x2c/0x3c [ 83.662165][ T5641] __dump_stack+0x30/0x40 [ 83.662810][ T5641] dump_stack_lvl+0xf8/0x160 [ 83.663439][ T5641] dump_stack+0x1c/0x5c [ 83.664046][ T5641] should_fail+0x3c0/0x51c [ 83.664736][ T5641] __should_failslab+0xbc/0x10c [ 83.665445][ T5641] should_failslab+0x10/0x28 [ 83.666119][ T5641] slab_pre_alloc_hook+0x64/0xec [ 83.666880][ T5641] kmem_cache_alloc_trace+0x98/0x3fc [ 83.667570][ T5641] btrfs_delete_delayed_dir_index+0x220/0x550 [ 83.668481][ T5641] __btrfs_unlink_inode+0x34c/0xb00 [ 83.669369][ T5641] btrfs_unlink+0x108/0x258 [ 83.670183][ T5641] vfs_unlink+0x2e0/0x4f4 [ 83.670878][ T5641] do_unlinkat+0x31c/0x600 [ 83.671549][ T5641] __arm64_sys_unlinkat+0xe0/0xfc [ 83.672316][ T5641] invoke_syscall+0x98/0x2b8 [ 83.672982][ T5641] el0_svc_common+0x138/0x258 [ 83.673719][ T5641] do_el0_svc+0x58/0x14c [ 83.674332][ T5641] el0_svc+0x78/0x1e0 [ 83.674928][ T5641] el0t_64_sync_handler+0xcc/0xe4 [ 83.675598][ T5641] el0t_64_sync+0x1a0/0x1a4 [ 83.678486][ T5641] ------------[ cut here ]------------ [ 83.679503][ T5641] WARNING: CPU: 1 PID: 5641 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 83.680934][ T5641] Modules linked in: [ 83.681507][ T5641] CPU: 1 PID: 5641 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 83.682802][ T5641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.684302][ T5641] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.685493][ T5641] pc : __btrfs_unlink_inode+0x908/0xb00 [ 83.686360][ T5641] lr : __btrfs_unlink_inode+0x908/0xb00 [ 83.687201][ T5641] sp : ffff8000247c7a60 [ 83.687787][ T5641] x29: ffff8000247c7b10 x28: ffff0000eb62c000 x27: ffff0000e2a2e010 [ 83.688967][ T5641] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c12da630 [ 83.690134][ T5641] x23: 1ffff000048f8f54 x22: dfff800000000000 x21: ffff0000e2b8ce80 [ 83.691356][ T5641] x20: ffff0000c06773c8 x19: 1fffe000180cee79 x18: 0000000000000001 [ 83.692579][ T5641] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 83.693735][ T5641] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 83.694943][ T5641] x11: 0000000000000000 x10: 0000000000000000 x9 : 8239f3278952ee00 [ 83.696151][ T5641] x8 : 8239f3278952ee00 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.697365][ T5641] x5 : ffff8000247c7358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 83.698569][ T5641] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.699773][ T5641] Call trace: [ 83.700210][ T5641] __btrfs_unlink_inode+0x908/0xb00 [ 83.700893][ T5641] btrfs_unlink+0x108/0x258 [ 83.701503][ T5641] vfs_unlink+0x2e0/0x4f4 [ 83.702174][ T5641] do_unlinkat+0x31c/0x600 [ 83.702812][ T5641] __arm64_sys_unlinkat+0xe0/0xfc [ 83.703511][ T5641] invoke_syscall+0x98/0x2b8 [ 83.704164][ T5641] el0_svc_common+0x138/0x258 [ 83.704826][ T5641] do_el0_svc+0x58/0x14c [ 83.705504][ T5641] el0_svc+0x78/0x1e0 [ 83.706100][ T5641] el0t_64_sync_handler+0xcc/0xe4 [ 83.706848][ T5641] el0t_64_sync+0x1a0/0x1a4 [ 83.707525][ T5641] irq event stamp: 80366 [ 83.708091][ T5641] hardirqs last enabled at (80365): [] __up_console_sem+0xb4/0x100 [ 83.709397][ T5641] hardirqs last disabled at (80366): [] el1_dbg+0x24/0x80 [ 83.710690][ T5641] softirqs last enabled at (80356): [] handle_softirqs+0xa4c/0xbf0 [ 83.712097][ T5641] softirqs last disabled at (80329): [] __irq_exit_rcu+0x240/0x440 [ 83.713484][ T5641] ---[ end trace 064aab85e98fe835 ]--- [ 83.717547][ T5641] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 83.718999][ T5641] BTRFS info (device loop0): forced readonly [ 83.769665][ T5242] Bluetooth: hci0: command 0x0419 tx timeout [ 83.874684][ T5663] loop0: detected capacity change from 0 to 32768 [ 83.910894][ T5663] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.38 (5663) [ 83.979251][ T5663] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.982374][ T5663] BTRFS info (device loop0): using free space tree [ 83.983413][ T5663] BTRFS info (device loop0): has skinny extents [ 83.992537][ T5663] BTRFS info (device loop0): enabling ssd optimizations [ 83.997005][ T5663] FAULT_INJECTION: forcing a failure. [ 83.997005][ T5663] name failslab, interval 1, probability 0, space 0, times 0 [ 83.999032][ T5663] CPU: 0 PID: 5663 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 84.000375][ T5663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.001855][ T5663] Call trace: [ 84.002360][ T5663] dump_backtrace+0x0/0x43c [ 84.003041][ T5663] show_stack+0x2c/0x3c [ 84.003609][ T5663] __dump_stack+0x30/0x40 [ 84.004261][ T5663] dump_stack_lvl+0xf8/0x160 [ 84.004960][ T5663] dump_stack+0x1c/0x5c [ 84.005599][ T5663] should_fail+0x3c0/0x51c [ 84.006222][ T5663] __should_failslab+0xbc/0x10c [ 84.006871][ T5663] should_failslab+0x10/0x28 [ 84.007559][ T5663] slab_pre_alloc_hook+0x64/0xec [ 84.008300][ T5663] kmem_cache_alloc_trace+0x98/0x3fc [ 84.009118][ T5663] btrfs_delete_delayed_dir_index+0x220/0x550 [ 84.010017][ T5663] __btrfs_unlink_inode+0x34c/0xb00 [ 84.010776][ T5663] btrfs_unlink+0x108/0x258 [ 84.011395][ T5663] vfs_unlink+0x2e0/0x4f4 [ 84.012015][ T5663] do_unlinkat+0x31c/0x600 [ 84.012682][ T5663] __arm64_sys_unlinkat+0xe0/0xfc [ 84.013469][ T5663] invoke_syscall+0x98/0x2b8 [ 84.014177][ T5663] el0_svc_common+0x138/0x258 [ 84.014849][ T5663] do_el0_svc+0x58/0x14c [ 84.015500][ T5663] el0_svc+0x78/0x1e0 [ 84.016076][ T5663] el0t_64_sync_handler+0xcc/0xe4 [ 84.016791][ T5663] el0t_64_sync+0x1a0/0x1a4 [ 84.019172][ T5663] ------------[ cut here ]------------ [ 84.020307][ T5663] WARNING: CPU: 0 PID: 5663 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 84.021714][ T5663] Modules linked in: [ 84.022342][ T5663] CPU: 0 PID: 5663 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 84.023685][ T5663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.025208][ T5663] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 84.026351][ T5663] pc : __btrfs_unlink_inode+0x908/0xb00 [ 84.027175][ T5663] lr : __btrfs_unlink_inode+0x908/0xb00 [ 84.027954][ T5663] sp : ffff800024827a60 [ 84.028621][ T5663] x29: ffff800024827b10 x28: ffff0000db06e000 x27: ffff0000ec85dc10 [ 84.029900][ T5663] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000dab28630 [ 84.031098][ T5663] x23: 1ffff00004904f54 x22: dfff800000000000 x21: ffff0000e2a16220 [ 84.032267][ T5663] x20: ffff0000dd2e33c8 x19: 1fffe0001ba5c679 x18: 0000000000000001 [ 84.033519][ T5663] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 84.034732][ T5663] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 84.035939][ T5663] x11: 0000000000000000 x10: 0000000000000000 x9 : 48b836a765040f00 [ 84.037140][ T5663] x8 : 48b836a765040f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 84.038448][ T5663] x5 : ffff800024827358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 84.039613][ T5663] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 84.040890][ T5663] Call trace: [ 84.041382][ T5663] __btrfs_unlink_inode+0x908/0xb00 [ 84.042177][ T5663] btrfs_unlink+0x108/0x258 [ 84.042797][ T5663] vfs_unlink+0x2e0/0x4f4 [ 84.043465][ T5663] do_unlinkat+0x31c/0x600 [ 84.044098][ T5663] __arm64_sys_unlinkat+0xe0/0xfc [ 84.044855][ T5663] invoke_syscall+0x98/0x2b8 [ 84.045571][ T5663] el0_svc_common+0x138/0x258 [ 84.046322][ T5663] do_el0_svc+0x58/0x14c [ 84.046940][ T5663] el0_svc+0x78/0x1e0 [ 84.047541][ T5663] el0t_64_sync_handler+0xcc/0xe4 [ 84.048275][ T5663] el0t_64_sync+0x1a0/0x1a4 [ 84.048923][ T5663] irq event stamp: 80060 [ 84.049518][ T5663] hardirqs last enabled at (80059): [] __up_console_sem+0xb4/0x100 [ 84.050915][ T5663] hardirqs last disabled at (80060): [] el1_dbg+0x24/0x80 [ 84.052159][ T5663] softirqs last enabled at (80048): [] handle_softirqs+0xa4c/0xbf0 [ 84.053530][ T5663] softirqs last disabled at (80029): [] __irq_exit_rcu+0x240/0x440 [ 84.054976][ T5663] ---[ end trace 064aab85e98fe836 ]--- [ 84.057605][ T5663] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 84.059163][ T5663] BTRFS info (device loop0): forced readonly [ 84.245717][ T5685] loop0: detected capacity change from 0 to 32768 [ 84.295168][ T5685] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.39 (5685) [ 84.298633][ T5685] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 84.300178][ T5685] BTRFS info (device loop0): using free space tree [ 84.301184][ T5685] BTRFS info (device loop0): has skinny extents [ 84.310355][ T5685] BTRFS info (device loop0): enabling ssd optimizations [ 84.315021][ T5685] FAULT_INJECTION: forcing a failure. [ 84.315021][ T5685] name failslab, interval 1, probability 0, space 0, times 0 [ 84.317146][ T5685] CPU: 1 PID: 5685 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 84.318425][ T5685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.319934][ T5685] Call trace: [ 84.320371][ T5685] dump_backtrace+0x0/0x43c [ 84.321042][ T5685] show_stack+0x2c/0x3c [ 84.321621][ T5685] __dump_stack+0x30/0x40 [ 84.322274][ T5685] dump_stack_lvl+0xf8/0x160 [ 84.322888][ T5685] dump_stack+0x1c/0x5c [ 84.323490][ T5685] should_fail+0x3c0/0x51c [ 84.324124][ T5685] __should_failslab+0xbc/0x10c [ 84.324849][ T5685] should_failslab+0x10/0x28 [ 84.325482][ T5685] slab_pre_alloc_hook+0x64/0xec [ 84.326170][ T5685] kmem_cache_alloc_trace+0x98/0x3fc [ 84.326896][ T5685] btrfs_delete_delayed_dir_index+0x220/0x550 [ 84.327767][ T5685] __btrfs_unlink_inode+0x34c/0xb00 [ 84.328485][ T5685] btrfs_unlink+0x108/0x258 [ 84.329106][ T5685] vfs_unlink+0x2e0/0x4f4 [ 84.329734][ T5685] do_unlinkat+0x31c/0x600 [ 84.330380][ T5685] __arm64_sys_unlinkat+0xe0/0xfc [ 84.331132][ T5685] invoke_syscall+0x98/0x2b8 [ 84.331798][ T5685] el0_svc_common+0x138/0x258 [ 84.332501][ T5685] do_el0_svc+0x58/0x14c [ 84.333073][ T5685] el0_svc+0x78/0x1e0 [ 84.333603][ T5685] el0t_64_sync_handler+0xcc/0xe4 [ 84.334341][ T5685] el0t_64_sync+0x1a0/0x1a4 [ 84.335835][ T5685] ------------[ cut here ]------------ [ 84.336774][ T5685] WARNING: CPU: 1 PID: 5685 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 84.338127][ T5685] Modules linked in: [ 84.338718][ T5685] CPU: 1 PID: 5685 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 84.339928][ T5685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.341431][ T5685] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 84.342662][ T5685] pc : __btrfs_unlink_inode+0x908/0xb00 [ 84.343407][ T5685] lr : __btrfs_unlink_inode+0x908/0xb00 [ 84.344175][ T5685] sp : ffff800023dc7a60 [ 84.344773][ T5685] x29: ffff800023dc7b10 x28: ffff0000eb4fe000 x27: ffff0000e2a2c810 [ 84.345991][ T5685] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d12bb210 [ 84.347212][ T5685] x23: 1ffff000047b8f54 x22: dfff800000000000 x21: ffff0000e2b889d0 [ 84.348407][ T5685] x20: ffff0000c0677688 x19: 1fffe000180ceed1 x18: 0000000000000001 [ 84.349515][ T5685] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 84.350693][ T5685] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 84.351890][ T5685] x11: 0000000000000000 x10: 0000000000000000 x9 : 49b948d36b971700 [ 84.353113][ T5685] x8 : 49b948d36b971700 x7 : 0000000000000001 x6 : 0000000000000001 [ 84.354326][ T5685] x5 : ffff800023dc7358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 84.355520][ T5685] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 84.356685][ T5685] Call trace: [ 84.357167][ T5685] __btrfs_unlink_inode+0x908/0xb00 [ 84.357908][ T5685] btrfs_unlink+0x108/0x258 [ 84.358548][ T5685] vfs_unlink+0x2e0/0x4f4 [ 84.359151][ T5685] do_unlinkat+0x31c/0x600 [ 84.359851][ T5685] __arm64_sys_unlinkat+0xe0/0xfc [ 84.360604][ T5685] invoke_syscall+0x98/0x2b8 [ 84.361267][ T5685] el0_svc_common+0x138/0x258 [ 84.361990][ T5685] do_el0_svc+0x58/0x14c [ 84.362621][ T5685] el0_svc+0x78/0x1e0 [ 84.363218][ T5685] el0t_64_sync_handler+0xcc/0xe4 [ 84.363935][ T5685] el0t_64_sync+0x1a0/0x1a4 [ 84.364507][ T5685] irq event stamp: 79946 [ 84.365128][ T5685] hardirqs last enabled at (79945): [] __up_console_sem+0xb4/0x100 [ 84.366403][ T5685] hardirqs last disabled at (79946): [] el1_dbg+0x24/0x80 [ 84.367888][ T5685] softirqs last enabled at (79926): [] handle_softirqs+0xa4c/0xbf0 [ 84.369229][ T5685] softirqs last disabled at (79911): [] __irq_exit_rcu+0x240/0x440 [ 84.370741][ T5685] ---[ end trace 064aab85e98fe837 ]--- [ 84.372166][ T5685] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 84.373662][ T5685] BTRFS info (device loop0): forced readonly [ 84.522250][ T5707] loop0: detected capacity change from 0 to 32768 [ 84.526696][ T5707] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.40 (5707) [ 84.530608][ T5707] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 84.531963][ T5707] BTRFS info (device loop0): using free space tree [ 84.532908][ T5707] BTRFS info (device loop0): has skinny extents [ 84.549673][ T5707] BTRFS info (device loop0): enabling ssd optimizations [ 84.554454][ T5707] FAULT_INJECTION: forcing a failure. [ 84.554454][ T5707] name failslab, interval 1, probability 0, space 0, times 0 [ 84.556494][ T5707] CPU: 1 PID: 5707 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 84.557841][ T5707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.559239][ T5707] Call trace: [ 84.559732][ T5707] dump_backtrace+0x0/0x43c [ 84.560386][ T5707] show_stack+0x2c/0x3c [ 84.561048][ T5707] __dump_stack+0x30/0x40 [ 84.561725][ T5707] dump_stack_lvl+0xf8/0x160 [ 84.562463][ T5707] dump_stack+0x1c/0x5c [ 84.563065][ T5707] should_fail+0x3c0/0x51c [ 84.563812][ T5707] __should_failslab+0xbc/0x10c [ 84.564654][ T5707] should_failslab+0x10/0x28 [ 84.565379][ T5707] slab_pre_alloc_hook+0x64/0xec [ 84.566128][ T5707] kmem_cache_alloc_trace+0x98/0x3fc [ 84.566918][ T5707] btrfs_delete_delayed_dir_index+0x220/0x550 [ 84.567819][ T5707] __btrfs_unlink_inode+0x34c/0xb00 [ 84.568584][ T5707] btrfs_unlink+0x108/0x258 [ 84.569242][ T5707] vfs_unlink+0x2e0/0x4f4 [ 84.569881][ T5707] do_unlinkat+0x31c/0x600 [ 84.570526][ T5707] __arm64_sys_unlinkat+0xe0/0xfc [ 84.571264][ T5707] invoke_syscall+0x98/0x2b8 [ 84.571932][ T5707] el0_svc_common+0x138/0x258 [ 84.572567][ T5707] do_el0_svc+0x58/0x14c [ 84.573217][ T5707] el0_svc+0x78/0x1e0 [ 84.573827][ T5707] el0t_64_sync_handler+0xcc/0xe4 [ 84.574626][ T5707] el0t_64_sync+0x1a0/0x1a4 [ 84.576487][ T5707] ------------[ cut here ]------------ [ 84.577479][ T5707] WARNING: CPU: 1 PID: 5707 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 84.578960][ T5707] Modules linked in: [ 84.579519][ T5707] CPU: 1 PID: 5707 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 84.580842][ T5707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.582251][ T5707] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 84.583383][ T5707] pc : __btrfs_unlink_inode+0x908/0xb00 [ 84.584201][ T5707] lr : __btrfs_unlink_inode+0x908/0xb00 [ 84.585037][ T5707] sp : ffff800024b57a60 [ 84.585646][ T5707] x29: ffff800024b57b10 x28: ffff0000cd738000 x27: ffff0000e2a2e410 [ 84.586906][ T5707] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c7eaba50 [ 84.588150][ T5707] x23: 1ffff0000496af54 x22: dfff800000000000 x21: ffff0000dd3309d0 [ 84.589340][ T5707] x20: ffff0000c06777e8 x19: 1fffe000180ceefd x18: 0000000000000001 [ 84.590574][ T5707] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 84.591816][ T5707] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 84.593004][ T5707] x11: 0000000000000000 x10: 0000000000000000 x9 : d784cb7c06aaf900 [ 84.594220][ T5707] x8 : d784cb7c06aaf900 x7 : 0000000000000001 x6 : 0000000000000001 [ 84.595422][ T5707] x5 : ffff800024b57358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 84.596622][ T5707] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 84.597766][ T5707] Call trace: [ 84.598242][ T5707] __btrfs_unlink_inode+0x908/0xb00 [ 84.599002][ T5707] btrfs_unlink+0x108/0x258 [ 84.599656][ T5707] vfs_unlink+0x2e0/0x4f4 [ 84.600252][ T5707] do_unlinkat+0x31c/0x600 [ 84.600877][ T5707] __arm64_sys_unlinkat+0xe0/0xfc [ 84.601688][ T5707] invoke_syscall+0x98/0x2b8 [ 84.602362][ T5707] el0_svc_common+0x138/0x258 [ 84.603035][ T5707] do_el0_svc+0x58/0x14c [ 84.603635][ T5707] el0_svc+0x78/0x1e0 [ 84.604220][ T5707] el0t_64_sync_handler+0xcc/0xe4 [ 84.604906][ T5707] el0t_64_sync+0x1a0/0x1a4 [ 84.605522][ T5707] irq event stamp: 80656 [ 84.606121][ T5707] hardirqs last enabled at (80655): [] __up_console_sem+0xb4/0x100 [ 84.607479][ T5707] hardirqs last disabled at (80656): [] el1_dbg+0x24/0x80 [ 84.608634][ T5707] softirqs last enabled at (80636): [] handle_softirqs+0xa4c/0xbf0 [ 84.610011][ T5707] softirqs last disabled at (80511): [] __irq_exit_rcu+0x240/0x440 [ 84.611331][ T5707] ---[ end trace 064aab85e98fe838 ]--- [ 84.613747][ T5707] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 84.615176][ T5707] BTRFS info (device loop0): forced readonly [ 84.765867][ T5729] loop0: detected capacity change from 0 to 32768 [ 84.800846][ T5729] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.41 (5729) [ 84.852190][ T5729] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 84.853641][ T5729] BTRFS info (device loop0): using free space tree [ 84.854570][ T5729] BTRFS info (device loop0): has skinny extents [ 84.863915][ T5729] BTRFS info (device loop0): enabling ssd optimizations [ 84.870989][ T5729] FAULT_INJECTION: forcing a failure. [ 84.870989][ T5729] name failslab, interval 1, probability 0, space 0, times 0 [ 84.872999][ T5729] CPU: 1 PID: 5729 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 84.874136][ T5729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.875614][ T5729] Call trace: [ 84.876092][ T5729] dump_backtrace+0x0/0x43c [ 84.876737][ T5729] show_stack+0x2c/0x3c [ 84.877326][ T5729] __dump_stack+0x30/0x40 [ 84.877973][ T5729] dump_stack_lvl+0xf8/0x160 [ 84.878601][ T5729] dump_stack+0x1c/0x5c [ 84.879194][ T5729] should_fail+0x3c0/0x51c [ 84.879826][ T5729] __should_failslab+0xbc/0x10c [ 84.880563][ T5729] should_failslab+0x10/0x28 [ 84.881232][ T5729] slab_pre_alloc_hook+0x64/0xec [ 84.881903][ T5729] kmem_cache_alloc_trace+0x98/0x3fc [ 84.882659][ T5729] btrfs_delete_delayed_dir_index+0x220/0x550 [ 84.883558][ T5729] __btrfs_unlink_inode+0x34c/0xb00 [ 84.884335][ T5729] btrfs_unlink+0x108/0x258 [ 84.885076][ T5729] vfs_unlink+0x2e0/0x4f4 [ 84.885763][ T5729] do_unlinkat+0x31c/0x600 [ 84.886412][ T5729] __arm64_sys_unlinkat+0xe0/0xfc [ 84.887253][ T5729] invoke_syscall+0x98/0x2b8 [ 84.887973][ T5729] el0_svc_common+0x138/0x258 [ 84.888652][ T5729] do_el0_svc+0x58/0x14c [ 84.889296][ T5729] el0_svc+0x78/0x1e0 [ 84.889868][ T5729] el0t_64_sync_handler+0xcc/0xe4 [ 84.890629][ T5729] el0t_64_sync+0x1a0/0x1a4 [ 84.893576][ T5729] ------------[ cut here ]------------ [ 84.894587][ T5729] WARNING: CPU: 1 PID: 5729 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 84.895811][ T5729] Modules linked in: [ 84.896395][ T5729] CPU: 1 PID: 5729 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 84.897591][ T5729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.899085][ T5729] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 84.900270][ T5729] pc : __btrfs_unlink_inode+0x908/0xb00 [ 84.901089][ T5729] lr : __btrfs_unlink_inode+0x908/0xb00 [ 84.901915][ T5729] sp : ffff800024b17a60 [ 84.902522][ T5729] x29: ffff800024b17b10 x28: ffff0000c8788000 x27: ffff0000ec85f410 [ 84.903678][ T5729] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c8c8a580 [ 84.904898][ T5729] x23: 1ffff00004962f54 x22: dfff800000000000 x21: ffff0000dd330000 [ 84.906214][ T5729] x20: ffff0000c0677e18 x19: 1fffe000180cefc3 x18: 0000000000000001 [ 84.907529][ T5729] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 84.908829][ T5729] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 84.910102][ T5729] x11: 0000000000000000 x10: 0000000000000000 x9 : 7152adfa32cdb800 [ 84.911302][ T5729] x8 : 7152adfa32cdb800 x7 : 0000000000000001 x6 : 0000000000000001 [ 84.912525][ T5729] x5 : ffff800024b17358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 84.913770][ T5729] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 84.914933][ T5729] Call trace: [ 84.915413][ T5729] __btrfs_unlink_inode+0x908/0xb00 [ 84.916150][ T5729] btrfs_unlink+0x108/0x258 [ 84.916787][ T5729] vfs_unlink+0x2e0/0x4f4 [ 84.917428][ T5729] do_unlinkat+0x31c/0x600 [ 84.918050][ T5729] __arm64_sys_unlinkat+0xe0/0xfc [ 84.918803][ T5729] invoke_syscall+0x98/0x2b8 [ 84.919441][ T5729] el0_svc_common+0x138/0x258 [ 84.920140][ T5729] do_el0_svc+0x58/0x14c [ 84.920740][ T5729] el0_svc+0x78/0x1e0 [ 84.921327][ T5729] el0t_64_sync_handler+0xcc/0xe4 [ 84.922023][ T5729] el0t_64_sync+0x1a0/0x1a4 [ 84.922699][ T5729] irq event stamp: 80388 [ 84.923313][ T5729] hardirqs last enabled at (80387): [] __up_console_sem+0xb4/0x100 [ 84.924706][ T5729] hardirqs last disabled at (80388): [] el1_dbg+0x24/0x80 [ 84.925903][ T5729] softirqs last enabled at (80368): [] handle_softirqs+0xa4c/0xbf0 [ 84.927257][ T5729] softirqs last disabled at (80343): [] __irq_exit_rcu+0x240/0x440 [ 84.928562][ T5729] ---[ end trace 064aab85e98fe839 ]--- [ 84.931561][ T5729] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 84.933107][ T5729] BTRFS info (device loop0): forced readonly [ 85.071366][ T5751] loop0: detected capacity change from 0 to 32768 [ 85.074065][ T5751] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.42 (5751) [ 85.076979][ T5751] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 85.078947][ T5751] BTRFS info (device loop0): using free space tree [ 85.080179][ T5751] BTRFS info (device loop0): has skinny extents [ 85.109602][ T5751] BTRFS info (device loop0): enabling ssd optimizations [ 85.113640][ T5751] FAULT_INJECTION: forcing a failure. [ 85.113640][ T5751] name failslab, interval 1, probability 0, space 0, times 0 [ 85.115582][ T5751] CPU: 0 PID: 5751 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 85.116826][ T5751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.118240][ T5751] Call trace: [ 85.118702][ T5751] dump_backtrace+0x0/0x43c [ 85.119342][ T5751] show_stack+0x2c/0x3c [ 85.119916][ T5751] __dump_stack+0x30/0x40 [ 85.120596][ T5751] dump_stack_lvl+0xf8/0x160 [ 85.121298][ T5751] dump_stack+0x1c/0x5c [ 85.121894][ T5751] should_fail+0x3c0/0x51c [ 85.122518][ T5751] __should_failslab+0xbc/0x10c [ 85.123239][ T5751] should_failslab+0x10/0x28 [ 85.123929][ T5751] slab_pre_alloc_hook+0x64/0xec [ 85.124656][ T5751] kmem_cache_alloc_trace+0x98/0x3fc [ 85.125438][ T5751] btrfs_delete_delayed_dir_index+0x220/0x550 [ 85.126361][ T5751] __btrfs_unlink_inode+0x34c/0xb00 [ 85.127118][ T5751] btrfs_unlink+0x108/0x258 [ 85.127792][ T5751] vfs_unlink+0x2e0/0x4f4 [ 85.128377][ T5751] do_unlinkat+0x31c/0x600 [ 85.129024][ T5751] __arm64_sys_unlinkat+0xe0/0xfc [ 85.129791][ T5751] invoke_syscall+0x98/0x2b8 [ 85.130395][ T5751] el0_svc_common+0x138/0x258 [ 85.131074][ T5751] do_el0_svc+0x58/0x14c [ 85.131670][ T5751] el0_svc+0x78/0x1e0 [ 85.132194][ T5751] el0t_64_sync_handler+0xcc/0xe4 [ 85.132940][ T5751] el0t_64_sync+0x1a0/0x1a4 [ 85.133930][ T5751] ------------[ cut here ]------------ [ 85.134829][ T5751] WARNING: CPU: 0 PID: 5751 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 85.136246][ T5751] Modules linked in: [ 85.136747][ T5751] CPU: 0 PID: 5751 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 85.138076][ T5751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.139596][ T5751] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 85.140751][ T5751] pc : __btrfs_unlink_inode+0x908/0xb00 [ 85.141547][ T5751] lr : __btrfs_unlink_inode+0x908/0xb00 [ 85.142369][ T5751] sp : ffff800024b57a60 [ 85.143022][ T5751] x29: ffff800024b57b10 x28: ffff0000dbff8000 x27: ffff0000ec85c410 [ 85.144191][ T5751] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000db1748f0 [ 85.145439][ T5751] x23: 1ffff0000496af54 x22: dfff800000000000 x21: ffff0000dd393ae0 [ 85.146554][ T5751] x20: ffff0000dd2e35d8 x19: 1fffe0001ba5c6bb x18: 0000000000000001 [ 85.147675][ T5751] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 85.148796][ T5751] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 85.149877][ T5751] x11: 0000000000000000 x10: 0000000000000000 x9 : f2cc5344c354b000 [ 85.150975][ T5751] x8 : f2cc5344c354b000 x7 : 0000000000000001 x6 : 0000000000000001 [ 85.152075][ T5751] x5 : ffff800024b57358 x4 : ffff8000141ff5a0 x3 : ffff800008302274 [ 85.153268][ T5751] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 85.154426][ T5751] Call trace: [ 85.154859][ T5751] __btrfs_unlink_inode+0x908/0xb00 [ 85.155582][ T5751] btrfs_unlink+0x108/0x258 [ 85.156216][ T5751] vfs_unlink+0x2e0/0x4f4 [ 85.156816][ T5751] do_unlinkat+0x31c/0x600 [ 85.157448][ T5751] __arm64_sys_unlinkat+0xe0/0xfc [ 85.158260][ T5751] invoke_syscall+0x98/0x2b8 [ 85.158898][ T5751] el0_svc_common+0x138/0x258 [ 85.159582][ T5751] do_el0_svc+0x58/0x14c [ 85.160190][ T5751] el0_svc+0x78/0x1e0 [ 85.160804][ T5751] el0t_64_sync_handler+0xcc/0xe4 [ 85.161502][ T5751] el0t_64_sync+0x1a0/0x1a4 [ 85.162095][ T5751] irq event stamp: 79802 [ 85.162732][ T5751] hardirqs last enabled at (79801): [] __up_console_sem+0xb4/0x100 [ 85.164093][ T5751] hardirqs last disabled at (79802): [] el1_dbg+0x24/0x80 [ 85.165300][ T5751] softirqs last enabled at (79782): [] handle_softirqs+0xa4c/0xbf0 [ 85.166670][ T5751] softirqs last disabled at (79647): [] __irq_exit_rcu+0x240/0x440 [ 85.168001][ T5751] ---[ end trace 064aab85e98fe83a ]--- [ 85.168992][ T5751] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 85.170453][ T5751] BTRFS info (device loop0): forced readonly [ 85.342307][ T5773] loop0: detected capacity change from 0 to 32768 [ 85.384174][ T5773] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.43 (5773) [ 85.388262][ T5773] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 85.389704][ T5773] BTRFS info (device loop0): using free space tree [ 85.390623][ T5773] BTRFS info (device loop0): has skinny extents [ 85.398285][ T5773] BTRFS info (device loop0): enabling ssd optimizations [ 85.403067][ T5773] FAULT_INJECTION: forcing a failure. [ 85.403067][ T5773] name failslab, interval 1, probability 0, space 0, times 0 [ 85.405160][ T5773] CPU: 0 PID: 5773 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 85.406443][ T5773] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.407902][ T5773] Call trace: [ 85.408367][ T5773] dump_backtrace+0x0/0x43c [ 85.409042][ T5773] show_stack+0x2c/0x3c [ 85.409622][ T5773] __dump_stack+0x30/0x40 [ 85.410217][ T5773] dump_stack_lvl+0xf8/0x160 [ 85.410878][ T5773] dump_stack+0x1c/0x5c [ 85.411501][ T5773] should_fail+0x3c0/0x51c [ 85.412154][ T5773] __should_failslab+0xbc/0x10c [ 85.412865][ T5773] should_failslab+0x10/0x28 [ 85.413496][ T5773] slab_pre_alloc_hook+0x64/0xec [ 85.414186][ T5773] kmem_cache_alloc_trace+0x98/0x3fc [ 85.414949][ T5773] btrfs_delete_delayed_dir_index+0x220/0x550 [ 85.415809][ T5773] __btrfs_unlink_inode+0x34c/0xb00 [ 85.416496][ T5773] btrfs_unlink+0x108/0x258 [ 85.417208][ T5773] vfs_unlink+0x2e0/0x4f4 [ 85.417860][ T5773] do_unlinkat+0x31c/0x600 [ 85.418471][ T5773] __arm64_sys_unlinkat+0xe0/0xfc [ 85.419213][ T5773] invoke_syscall+0x98/0x2b8 [ 85.419893][ T5773] el0_svc_common+0x138/0x258 [ 85.420557][ T5773] do_el0_svc+0x58/0x14c [ 85.421194][ T5773] el0_svc+0x78/0x1e0 [ 85.421768][ T5773] el0t_64_sync_handler+0xcc/0xe4 [ 85.422522][ T5773] el0t_64_sync+0x1a0/0x1a4 [ 85.423604][ T5773] ------------[ cut here ]------------ [ 85.424555][ T5773] WARNING: CPU: 0 PID: 5773 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 85.425979][ T5773] Modules linked in: [ 85.426563][ T5773] CPU: 0 PID: 5773 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 85.427819][ T5773] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.429271][ T5773] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 85.430397][ T5773] pc : __btrfs_unlink_inode+0x908/0xb00 [ 85.431233][ T5773] lr : __btrfs_unlink_inode+0x908/0xb00 [ 85.432116][ T5773] sp : ffff800024f27a60 [ 85.432734][ T5773] x29: ffff800024f27b10 x28: ffff0000d03ea000 x27: ffff0000ec85f810 [ 85.433862][ T5773] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d2215630 [ 85.435091][ T5773] x23: 1ffff000049e4f54 x22: dfff800000000000 x21: ffff0000dd3913a0 [ 85.436232][ T5773] x20: ffff0000dd2e3738 x19: 1fffe0001ba5c6e7 x18: 0000000000000001 [ 85.437378][ T5773] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 85.438543][ T5773] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 85.439702][ T5773] x11: 0000000000000000 x10: 0000000000000000 x9 : f6f4a05711538400 [ 85.440876][ T5773] x8 : f6f4a05711538400 x7 : 0000000000000001 x6 : 0000000000000001 [ 85.441962][ T5773] x5 : ffff800024f27358 x4 : ffff8000141ff5a0 x3 : ffff800008302274 [ 85.443024][ T5773] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 85.444184][ T5773] Call trace: [ 85.444605][ T5773] __btrfs_unlink_inode+0x908/0xb00 [ 85.445351][ T5773] btrfs_unlink+0x108/0x258 [ 85.446000][ T5773] vfs_unlink+0x2e0/0x4f4 [ 85.446629][ T5773] do_unlinkat+0x31c/0x600 [ 85.447275][ T5773] __arm64_sys_unlinkat+0xe0/0xfc [ 85.448050][ T5773] invoke_syscall+0x98/0x2b8 [ 85.448721][ T5773] el0_svc_common+0x138/0x258 [ 85.449422][ T5773] do_el0_svc+0x58/0x14c [ 85.450028][ T5773] el0_svc+0x78/0x1e0 [ 85.450619][ T5773] el0t_64_sync_handler+0xcc/0xe4 [ 85.451367][ T5773] el0t_64_sync+0x1a0/0x1a4 [ 85.452014][ T5773] irq event stamp: 80608 [ 85.452645][ T5773] hardirqs last enabled at (80607): [] __up_console_sem+0xb4/0x100 [ 85.453983][ T5773] hardirqs last disabled at (80608): [] el1_dbg+0x24/0x80 [ 85.455202][ T5773] softirqs last enabled at (80588): [] handle_softirqs+0xa4c/0xbf0 [ 85.456559][ T5773] softirqs last disabled at (80569): [] __irq_exit_rcu+0x240/0x440 [ 85.457925][ T5773] ---[ end trace 064aab85e98fe83b ]--- [ 85.459252][ T5773] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 85.461466][ T5773] BTRFS info (device loop0): forced readonly [ 85.605912][ T5795] loop0: detected capacity change from 0 to 32768 [ 85.633142][ T5795] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.44 (5795) [ 85.636746][ T5795] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 85.638313][ T5795] BTRFS info (device loop0): using free space tree [ 85.639677][ T5795] BTRFS info (device loop0): has skinny extents [ 85.647066][ T5795] BTRFS info (device loop0): enabling ssd optimizations [ 85.651958][ T5795] FAULT_INJECTION: forcing a failure. [ 85.651958][ T5795] name failslab, interval 1, probability 0, space 0, times 0 [ 85.653943][ T5795] CPU: 1 PID: 5795 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 85.655270][ T5795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.656790][ T5795] Call trace: [ 85.657251][ T5795] dump_backtrace+0x0/0x43c [ 85.657870][ T5795] show_stack+0x2c/0x3c [ 85.658484][ T5795] __dump_stack+0x30/0x40 [ 85.659095][ T5795] dump_stack_lvl+0xf8/0x160 [ 85.659760][ T5795] dump_stack+0x1c/0x5c [ 85.660351][ T5795] should_fail+0x3c0/0x51c [ 85.660976][ T5795] __should_failslab+0xbc/0x10c [ 85.661821][ T5795] should_failslab+0x10/0x28 [ 85.662561][ T5795] slab_pre_alloc_hook+0x64/0xec [ 85.663303][ T5795] kmem_cache_alloc_trace+0x98/0x3fc [ 85.664080][ T5795] btrfs_delete_delayed_dir_index+0x220/0x550 [ 85.665098][ T5795] __btrfs_unlink_inode+0x34c/0xb00 [ 85.665900][ T5795] btrfs_unlink+0x108/0x258 [ 85.666577][ T5795] vfs_unlink+0x2e0/0x4f4 [ 85.667202][ T5795] do_unlinkat+0x31c/0x600 [ 85.667831][ T5795] __arm64_sys_unlinkat+0xe0/0xfc [ 85.668604][ T5795] invoke_syscall+0x98/0x2b8 [ 85.669275][ T5795] el0_svc_common+0x138/0x258 [ 85.669981][ T5795] do_el0_svc+0x58/0x14c [ 85.670592][ T5795] el0_svc+0x78/0x1e0 [ 85.671190][ T5795] el0t_64_sync_handler+0xcc/0xe4 [ 85.671951][ T5795] el0t_64_sync+0x1a0/0x1a4 [ 85.673368][ T5795] ------------[ cut here ]------------ [ 85.674191][ T5795] WARNING: CPU: 1 PID: 5795 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 85.675703][ T5795] Modules linked in: [ 85.676398][ T5795] CPU: 1 PID: 5795 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 85.677729][ T5795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.679253][ T5795] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 85.680371][ T5795] pc : __btrfs_unlink_inode+0x908/0xb00 [ 85.681156][ T5795] lr : __btrfs_unlink_inode+0x908/0xb00 [ 85.681940][ T5795] sp : ffff800025057a60 [ 85.682531][ T5795] x29: ffff800025057b10 x28: ffff0000d279a000 x27: ffff0000e2a2d010 [ 85.683772][ T5795] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c96d1b00 [ 85.684952][ T5795] x23: 1ffff00004a0af54 x22: dfff800000000000 x21: ffff0000e29344b0 [ 85.686071][ T5795] x20: ffff0000c0677aa8 x19: 1fffe000180cef55 x18: 0000000000000001 [ 85.687245][ T5795] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 85.688483][ T5795] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 85.689734][ T5795] x11: 0000000000000000 x10: 0000000000000000 x9 : 87535e3a61abea00 [ 85.690966][ T5795] x8 : 87535e3a61abea00 x7 : 0000000000000001 x6 : 0000000000000001 [ 85.692132][ T5795] x5 : ffff800025057358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 85.693232][ T5795] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 85.694414][ T5795] Call trace: [ 85.694868][ T5795] __btrfs_unlink_inode+0x908/0xb00 [ 85.695682][ T5795] btrfs_unlink+0x108/0x258 [ 85.696305][ T5795] vfs_unlink+0x2e0/0x4f4 [ 85.696964][ T5795] do_unlinkat+0x31c/0x600 [ 85.697603][ T5795] __arm64_sys_unlinkat+0xe0/0xfc [ 85.698319][ T5795] invoke_syscall+0x98/0x2b8 [ 85.699016][ T5795] el0_svc_common+0x138/0x258 [ 85.699729][ T5795] do_el0_svc+0x58/0x14c [ 85.700342][ T5795] el0_svc+0x78/0x1e0 [ 85.700925][ T5795] el0t_64_sync_handler+0xcc/0xe4 [ 85.701636][ T5795] el0t_64_sync+0x1a0/0x1a4 [ 85.702239][ T5795] irq event stamp: 80774 [ 85.702843][ T5795] hardirqs last enabled at (80773): [] __up_console_sem+0xb4/0x100 [ 85.704227][ T5795] hardirqs last disabled at (80774): [] el1_dbg+0x24/0x80 [ 85.705549][ T5795] softirqs last enabled at (80754): [] handle_softirqs+0xa4c/0xbf0 [ 85.706898][ T5795] softirqs last disabled at (80733): [] __irq_exit_rcu+0x240/0x440 [ 85.708237][ T5795] ---[ end trace 064aab85e98fe83c ]--- [ 85.710038][ T5795] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 85.711488][ T5795] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:25 executed programs: 32 [ 85.870843][ T5817] loop0: detected capacity change from 0 to 32768 [ 85.910728][ T5817] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.45 (5817) [ 85.940446][ T5817] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 85.941779][ T5817] BTRFS info (device loop0): using free space tree [ 85.942687][ T5817] BTRFS info (device loop0): has skinny extents [ 85.964103][ T5817] BTRFS info (device loop0): enabling ssd optimizations [ 85.968331][ T5817] FAULT_INJECTION: forcing a failure. [ 85.968331][ T5817] name failslab, interval 1, probability 0, space 0, times 0 [ 85.980538][ T5817] CPU: 1 PID: 5817 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 85.981837][ T5817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.983333][ T5817] Call trace: [ 85.983786][ T5817] dump_backtrace+0x0/0x43c [ 85.984525][ T5817] show_stack+0x2c/0x3c [ 85.985124][ T5817] __dump_stack+0x30/0x40 [ 85.985723][ T5817] dump_stack_lvl+0xf8/0x160 [ 85.986321][ T5817] dump_stack+0x1c/0x5c [ 85.986863][ T5817] should_fail+0x3c0/0x51c [ 85.987546][ T5817] __should_failslab+0xbc/0x10c [ 85.988328][ T5817] should_failslab+0x10/0x28 [ 85.989069][ T5817] slab_pre_alloc_hook+0x64/0xec [ 85.989880][ T5817] kmem_cache_alloc_trace+0x98/0x3fc [ 85.990759][ T5817] btrfs_delete_delayed_dir_index+0x220/0x550 [ 85.991711][ T5817] __btrfs_unlink_inode+0x34c/0xb00 [ 85.992516][ T5817] btrfs_unlink+0x108/0x258 [ 85.993182][ T5817] vfs_unlink+0x2e0/0x4f4 [ 85.993812][ T5817] do_unlinkat+0x31c/0x600 [ 85.994510][ T5817] __arm64_sys_unlinkat+0xe0/0xfc [ 85.995286][ T5817] invoke_syscall+0x98/0x2b8 [ 85.995941][ T5817] el0_svc_common+0x138/0x258 [ 85.996638][ T5817] do_el0_svc+0x58/0x14c [ 85.997291][ T5817] el0_svc+0x78/0x1e0 [ 85.997893][ T5817] el0t_64_sync_handler+0xcc/0xe4 [ 85.998630][ T5817] el0t_64_sync+0x1a0/0x1a4 [ 86.018193][ T5817] ------------[ cut here ]------------ [ 86.019325][ T5817] WARNING: CPU: 1 PID: 5817 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 86.020708][ T5817] Modules linked in: [ 86.021239][ T5817] CPU: 1 PID: 5817 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 86.022447][ T5817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 86.023811][ T5817] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 86.024830][ T5817] pc : __btrfs_unlink_inode+0x908/0xb00 [ 86.025587][ T5817] lr : __btrfs_unlink_inode+0x908/0xb00 [ 86.026319][ T5817] sp : ffff80001fe77a60 [ 86.026894][ T5817] x29: ffff80001fe77b10 x28: ffff0000d0ed8000 x27: ffff0000e2a2e810 [ 86.028059][ T5817] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d548d370 [ 86.029140][ T5817] x23: 1ffff00003fcef54 x22: dfff800000000000 x21: ffff0000e2933110 [ 86.030252][ T5817] x20: ffff0000c0677948 x19: 1fffe000180cef29 x18: 0000000000000001 [ 86.031354][ T5817] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 86.032481][ T5817] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 86.033613][ T5817] x11: 0000000000000000 x10: 0000000000000000 x9 : 1c570dc9385fe100 [ 86.034733][ T5817] x8 : 1c570dc9385fe100 x7 : 0000000000000001 x6 : 0000000000000001 [ 86.035881][ T5817] x5 : ffff80001fe77358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 86.037048][ T5817] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 86.038178][ T5817] Call trace: [ 86.038630][ T5817] __btrfs_unlink_inode+0x908/0xb00 [ 86.039356][ T5817] btrfs_unlink+0x108/0x258 [ 86.040021][ T5817] vfs_unlink+0x2e0/0x4f4 [ 86.040639][ T5817] do_unlinkat+0x31c/0x600 [ 86.041267][ T5817] __arm64_sys_unlinkat+0xe0/0xfc [ 86.041914][ T5817] invoke_syscall+0x98/0x2b8 [ 86.042535][ T5817] el0_svc_common+0x138/0x258 [ 86.043196][ T5817] do_el0_svc+0x58/0x14c [ 86.043772][ T5817] el0_svc+0x78/0x1e0 [ 86.044370][ T5817] el0t_64_sync_handler+0xcc/0xe4 [ 86.045092][ T5817] el0t_64_sync+0x1a0/0x1a4 [ 86.045727][ T5817] irq event stamp: 80072 [ 86.046305][ T5817] hardirqs last enabled at (80071): [] __up_console_sem+0xb4/0x100 [ 86.047625][ T5817] hardirqs last disabled at (80072): [] el1_dbg+0x24/0x80 [ 86.048815][ T5817] softirqs last enabled at (80048): [] handle_softirqs+0xa4c/0xbf0 [ 86.050099][ T5817] softirqs last disabled at (80029): [] __irq_exit_rcu+0x240/0x440 [ 86.051389][ T5817] ---[ end trace 064aab85e98fe83d ]--- [ 86.068926][ T5817] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 86.070415][ T5817] BTRFS info (device loop0): forced readonly [ 86.223778][ T5839] loop0: detected capacity change from 0 to 32768 [ 86.288148][ T5839] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.46 (5839) [ 86.291754][ T5839] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 86.293144][ T5839] BTRFS info (device loop0): using free space tree [ 86.294212][ T5839] BTRFS info (device loop0): has skinny extents [ 86.408293][ T5839] BTRFS info (device loop0): enabling ssd optimizations [ 86.414616][ T5839] FAULT_INJECTION: forcing a failure. [ 86.414616][ T5839] name failslab, interval 1, probability 0, space 0, times 0 [ 86.416637][ T5839] CPU: 1 PID: 5839 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 86.417891][ T5839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 86.419281][ T5839] Call trace: [ 86.419806][ T5839] dump_backtrace+0x0/0x43c [ 86.420466][ T5839] show_stack+0x2c/0x3c [ 86.421120][ T5839] __dump_stack+0x30/0x40 [ 86.421682][ T5839] dump_stack_lvl+0xf8/0x160 [ 86.422363][ T5839] dump_stack+0x1c/0x5c [ 86.422930][ T5839] should_fail+0x3c0/0x51c [ 86.423554][ T5839] __should_failslab+0xbc/0x10c [ 86.424308][ T5839] should_failslab+0x10/0x28 [ 86.424993][ T5839] slab_pre_alloc_hook+0x64/0xec [ 86.425678][ T5839] kmem_cache_alloc_trace+0x98/0x3fc [ 86.426429][ T5839] btrfs_delete_delayed_dir_index+0x220/0x550 [ 86.427364][ T5839] __btrfs_unlink_inode+0x34c/0xb00 [ 86.428080][ T5839] btrfs_unlink+0x108/0x258 [ 86.428774][ T5839] vfs_unlink+0x2e0/0x4f4 [ 86.429406][ T5839] do_unlinkat+0x31c/0x600 [ 86.430051][ T5839] __arm64_sys_unlinkat+0xe0/0xfc [ 86.430778][ T5839] invoke_syscall+0x98/0x2b8 [ 86.431440][ T5839] el0_svc_common+0x138/0x258 [ 86.432093][ T5839] do_el0_svc+0x58/0x14c [ 86.432674][ T5839] el0_svc+0x78/0x1e0 [ 86.433230][ T5839] el0t_64_sync_handler+0xcc/0xe4 [ 86.434067][ T5839] el0t_64_sync+0x1a0/0x1a4 [ 86.435564][ T5839] ------------[ cut here ]------------ [ 86.436575][ T5839] WARNING: CPU: 1 PID: 5839 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 86.437978][ T5839] Modules linked in: [ 86.438554][ T5839] CPU: 1 PID: 5839 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 86.439956][ T5839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 86.441421][ T5839] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 86.442589][ T5839] pc : __btrfs_unlink_inode+0x908/0xb00 [ 86.443451][ T5839] lr : __btrfs_unlink_inode+0x908/0xb00 [ 86.444302][ T5839] sp : ffff80001fe47a60 [ 86.444916][ T5839] x29: ffff80001fe47b10 x28: ffff0000d5f1e000 x27: ffff0000e2a2ec10 [ 86.446138][ T5839] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c7cba4d0 [ 86.447311][ T5839] x23: 1ffff00003fc8f54 x22: dfff800000000000 x21: ffff0000e2930000 [ 86.448515][ T5839] x20: ffff0000c0677c08 x19: 1fffe000180cef81 x18: 0000000000000001 [ 86.449641][ T5839] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 86.450825][ T5839] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 86.452004][ T5839] x11: 0000000000000000 x10: 0000000000000000 x9 : 7b1d0fcbe43f6000 [ 86.453208][ T5839] x8 : 7b1d0fcbe43f6000 x7 : 0000000000000001 x6 : 0000000000000001 [ 86.454378][ T5839] x5 : ffff80001fe47358 x4 : ffff8000141ff5a0 x3 : ffff800008302274 [ 86.455517][ T5839] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 86.456734][ T5839] Call trace: [ 86.457195][ T5839] __btrfs_unlink_inode+0x908/0xb00 [ 86.457982][ T5839] btrfs_unlink+0x108/0x258 [ 86.458614][ T5839] vfs_unlink+0x2e0/0x4f4 [ 86.459219][ T5839] do_unlinkat+0x31c/0x600 [ 86.459867][ T5839] __arm64_sys_unlinkat+0xe0/0xfc [ 86.460560][ T5839] invoke_syscall+0x98/0x2b8 [ 86.461182][ T5839] el0_svc_common+0x138/0x258 [ 86.461817][ T5839] do_el0_svc+0x58/0x14c [ 86.462460][ T5839] el0_svc+0x78/0x1e0 [ 86.463044][ T5839] el0t_64_sync_handler+0xcc/0xe4 [ 86.463789][ T5839] el0t_64_sync+0x1a0/0x1a4 [ 86.464425][ T5839] irq event stamp: 81988 [ 86.464993][ T5839] hardirqs last enabled at (81987): [] __up_console_sem+0xb4/0x100 [ 86.466346][ T5839] hardirqs last disabled at (81988): [] el1_dbg+0x24/0x80 [ 86.467538][ T5839] softirqs last enabled at (81968): [] handle_softirqs+0xa4c/0xbf0 [ 86.468995][ T5839] softirqs last disabled at (81867): [] __irq_exit_rcu+0x240/0x440 [ 86.470378][ T5839] ---[ end trace 064aab85e98fe83e ]--- [ 86.479408][ T5839] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 86.480850][ T5839] BTRFS info (device loop0): forced readonly [ 86.688359][ T5863] loop0: detected capacity change from 0 to 32768 [ 86.794699][ T5863] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.47 (5863) [ 86.798265][ T5863] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 86.799786][ T5863] BTRFS info (device loop0): using free space tree [ 86.800673][ T5863] BTRFS info (device loop0): has skinny extents [ 86.810060][ T5863] BTRFS info (device loop0): enabling ssd optimizations [ 86.814523][ T5863] FAULT_INJECTION: forcing a failure. [ 86.814523][ T5863] name failslab, interval 1, probability 0, space 0, times 0 [ 86.816426][ T5863] CPU: 1 PID: 5863 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 86.817749][ T5863] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 86.819224][ T5863] Call trace: [ 86.819709][ T5863] dump_backtrace+0x0/0x43c [ 86.820392][ T5863] show_stack+0x2c/0x3c [ 86.821030][ T5863] __dump_stack+0x30/0x40 [ 86.821673][ T5863] dump_stack_lvl+0xf8/0x160 [ 86.822375][ T5863] dump_stack+0x1c/0x5c [ 86.822992][ T5863] should_fail+0x3c0/0x51c [ 86.823616][ T5863] __should_failslab+0xbc/0x10c [ 86.824360][ T5863] should_failslab+0x10/0x28 [ 86.825071][ T5863] slab_pre_alloc_hook+0x64/0xec [ 86.825754][ T5863] kmem_cache_alloc_trace+0x98/0x3fc [ 86.826542][ T5863] btrfs_delete_delayed_dir_index+0x220/0x550 [ 86.827405][ T5863] __btrfs_unlink_inode+0x34c/0xb00 [ 86.828176][ T5863] btrfs_unlink+0x108/0x258 [ 86.828883][ T5863] vfs_unlink+0x2e0/0x4f4 [ 86.829566][ T5863] do_unlinkat+0x31c/0x600 [ 86.830261][ T5863] __arm64_sys_unlinkat+0xe0/0xfc [ 86.831004][ T5863] invoke_syscall+0x98/0x2b8 [ 86.831714][ T5863] el0_svc_common+0x138/0x258 [ 86.832408][ T5863] do_el0_svc+0x58/0x14c [ 86.833039][ T5863] el0_svc+0x78/0x1e0 [ 86.833669][ T5863] el0t_64_sync_handler+0xcc/0xe4 [ 86.834429][ T5863] el0t_64_sync+0x1a0/0x1a4 [ 86.835968][ T5863] ------------[ cut here ]------------ [ 86.836864][ T5863] WARNING: CPU: 1 PID: 5863 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 86.838233][ T5863] Modules linked in: [ 86.838798][ T5863] CPU: 1 PID: 5863 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 86.840019][ T5863] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 86.841494][ T5863] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 86.842665][ T5863] pc : __btrfs_unlink_inode+0x908/0xb00 [ 86.843533][ T5863] lr : __btrfs_unlink_inode+0x908/0xb00 [ 86.844301][ T5863] sp : ffff8000201b7a60 [ 86.844902][ T5863] x29: ffff8000201b7b10 x28: ffff0000ebe12000 x27: ffff0000e2a2dc10 [ 86.846095][ T5863] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000e859c000 [ 86.847199][ T5863] x23: 1ffff00004036f54 x22: dfff800000000000 x21: ffff0000e2b8d850 [ 86.848341][ T5863] x20: ffff0000c0677f78 x19: 1fffe000180cefef x18: 0000000000000001 [ 86.849530][ T5863] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 86.850604][ T5863] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 86.851761][ T5863] x11: 0000000000000000 x10: 0000000000000000 x9 : 18bc9fb5f40bcf00 [ 86.852880][ T5863] x8 : 18bc9fb5f40bcf00 x7 : 0000000000000001 x6 : 0000000000000001 [ 86.853996][ T5863] x5 : ffff8000201b7358 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 86.855157][ T5863] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 86.856320][ T5863] Call trace: [ 86.856899][ T5863] __btrfs_unlink_inode+0x908/0xb00 [ 86.857691][ T5863] btrfs_unlink+0x108/0x258 [ 86.858319][ T5863] vfs_unlink+0x2e0/0x4f4 [ 86.858957][ T5863] do_unlinkat+0x31c/0x600 [ 86.859609][ T5863] __arm64_sys_unlinkat+0xe0/0xfc [ 86.860284][ T5863] invoke_syscall+0x98/0x2b8 [ 86.861003][ T5863] el0_svc_common+0x138/0x258 [ 86.861746][ T5863] do_el0_svc+0x58/0x14c [ 86.862410][ T5863] el0_svc+0x78/0x1e0 [ 86.862949][ T5863] el0t_64_sync_handler+0xcc/0xe4 [ 86.863624][ T5863] el0t_64_sync+0x1a0/0x1a4 [ 86.864225][ T5863] irq event stamp: 81164 [ 86.864787][ T5863] hardirqs last enabled at (81163): [] __up_console_sem+0xb4/0x100 [ 86.866113][ T5863] hardirqs last disabled at (81164): [] el1_dbg+0x24/0x80 [ 86.867318][ T5863] softirqs last enabled at (81144): [] handle_softirqs+0xa4c/0xbf0 [ 86.868656][ T5863] softirqs last disabled at (81129): [] __irq_exit_rcu+0x240/0x440 [ 86.870061][ T5863] ---[ end trace 064aab85e98fe83f ]--- [ 86.871291][ T5863] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 86.872791][ T5863] BTRFS info (device loop0): forced readonly