Warning: Permanently added '10.128.0.60' (ED25519) to the list of known hosts. 1970/01/01 00:01:00 ignoring optional flag "type"="gce" 1970/01/01 00:01:01 parsed 1 programs [ 62.403118][ T4406] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 64.711793][ T680] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.712999][ T680] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.714281][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 64.726053][ T680] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.727377][ T680] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.728566][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 64.957243][ T4577] chnl_net:caif_netlink_parms(): no params data found [ 64.974444][ T4577] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.975753][ T4577] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.977392][ T4577] device bridge_slave_0 entered promiscuous mode [ 64.979661][ T4577] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.980846][ T4577] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.982342][ T4577] device bridge_slave_1 entered promiscuous mode [ 64.990013][ T4577] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.992473][ T4577] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.000883][ T4577] team0: Port device team_slave_0 added [ 65.003453][ T4577] team0: Port device team_slave_1 added [ 65.009691][ T4577] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.010971][ T4577] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 65.014676][ T4577] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.016952][ T4577] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.017982][ T4577] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 65.022010][ T4577] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.081414][ T4577] device hsr_slave_0 entered promiscuous mode [ 65.130539][ T4577] device hsr_slave_1 entered promiscuous mode [ 65.728147][ T4577] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.771136][ T4577] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.791210][ T4577] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.844464][ T4577] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.914298][ T4577] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.924038][ T4577] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.925224][ T680] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.926756][ T680] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.941487][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.943123][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.944924][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.946025][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.947627][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.951911][ T680] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.953331][ T680] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.954804][ T680] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.955855][ T680] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.960385][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.962992][ T680] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.966140][ T680] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.967883][ T680] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.971997][ T680] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.974228][ T680] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.976086][ T680] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.980429][ T4577] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 65.982019][ T4577] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.986942][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.988505][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.991792][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.993316][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.995138][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.022577][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.023869][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.027381][ T4577] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.034157][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 66.035641][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.047794][ T4577] device veth0_vlan entered promiscuous mode [ 66.050824][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 66.052199][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.054757][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.056142][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.058856][ T4577] device veth1_vlan entered promiscuous mode [ 66.067645][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.069077][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.071236][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 66.072802][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.075852][ T4577] device veth0_macvtap entered promiscuous mode [ 66.078146][ T4577] device veth1_macvtap entered promiscuous mode [ 66.084190][ T4577] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.085461][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.086856][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 66.088204][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 66.089724][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.093210][ T4577] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.095032][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.096533][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.098572][ T4577] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.101391][ T4577] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.102637][ T4577] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.103847][ T4577] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:06 executed programs: 0 [ 66.219666][ T4704] chnl_net:caif_netlink_parms(): no params data found [ 66.251165][ T4704] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.252328][ T4704] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.253723][ T4704] device bridge_slave_0 entered promiscuous mode [ 66.255654][ T4704] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.256637][ T4704] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.258078][ T4704] device bridge_slave_1 entered promiscuous mode [ 66.266280][ T4704] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.269253][ T4704] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.279395][ T4704] team0: Port device team_slave_0 added [ 66.281657][ T4704] team0: Port device team_slave_1 added [ 66.288679][ T4704] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.289752][ T4704] 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. [ 66.295098][ T4704] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.297529][ T4704] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.298548][ T4704] 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. [ 66.302596][ T4704] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.351140][ T4704] device hsr_slave_0 entered promiscuous mode [ 66.380648][ T4704] device hsr_slave_1 entered promiscuous mode [ 66.399981][ T4704] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.401126][ T4704] Cannot create hsr debugfs directory [ 66.429092][ T4704] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.189999][ T4223] Bluetooth: hci0: command 0x0409 tx timeout [ 69.283425][ T4704] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.631883][ T3340] cfg80211: failed to load regulatory.db [ 69.633555][ T2064] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.634628][ T2064] ieee802154 phy1 wpan1: encryption failed: -22 [ 70.279927][ T1541] Bluetooth: hci0: command 0x041b tx timeout [ 71.493326][ T4704] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.544114][ T4704] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.707822][ T4704] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.741807][ T4704] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 71.781095][ T4704] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.841023][ T4704] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.903964][ T4704] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.907737][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.909232][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.913703][ T4704] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.916221][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.917647][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.919014][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.920104][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.921426][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 71.931323][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.932912][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.934336][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.935344][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.937657][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 71.940888][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 71.943657][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 71.945567][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.949016][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.950846][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 71.952832][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.956784][ T4704] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 71.958423][ T4704] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 71.960912][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 71.962376][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.963978][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 71.965303][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.966713][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.008296][ T4704] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.011413][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.012672][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.017540][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 72.019175][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.305309][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 72.306920][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.308506][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.310027][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.312341][ T4704] device veth0_vlan entered promiscuous mode [ 72.315592][ T4704] device veth1_vlan entered promiscuous mode [ 72.322713][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 72.324217][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 72.325638][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 72.327169][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.329438][ T4704] device veth0_macvtap entered promiscuous mode [ 72.332080][ T4704] device veth1_macvtap entered promiscuous mode [ 72.336814][ T4704] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 72.338265][ T4704] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 72.340566][ T4704] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.341771][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.343327][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 72.344714][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 72.346242][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.348552][ T4704] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 72.350331][ T4704] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 72.350343][ T1541] Bluetooth: hci0: command 0x040f tx timeout [ 72.352236][ T4704] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.353922][ T680] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 72.355423][ T680] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 72.357796][ T4704] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.359073][ T4704] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.360440][ T4704] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.361744][ T4704] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.382093][ T680] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.383976][ T680] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.385540][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 72.391280][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.392441][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.393534][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:12 executed programs: 2 [ 72.503862][ T4958] loop0: detected capacity change from 0 to 32768 [ 72.555447][ T4958] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.15 (4958) [ 72.562041][ T4958] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 72.565099][ T4958] BTRFS info (device loop0): setting nodatacow, compression disabled [ 72.566329][ T4958] BTRFS info (device loop0): setting datacow [ 72.567194][ T4958] BTRFS info (device loop0): doing ref verification [ 72.568314][ T4958] BTRFS info (device loop0): force clearing of disk cache [ 72.569344][ T4958] BTRFS info (device loop0): turning off barriers [ 72.571653][ T4958] BTRFS info (device loop0): use zlib compression, level 3 [ 72.572698][ T4958] BTRFS info (device loop0): using free space tree [ 72.573640][ T4958] BTRFS info (device loop0): has skinny extents [ 72.585687][ T4958] BTRFS info (device loop0): clearing free space tree [ 72.586867][ T4958] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 72.588266][ T4958] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 72.595483][ T4958] BTRFS info (device loop0): creating free space tree [ 72.597191][ T4958] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 72.598694][ T4958] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 72.606489][ T4958] FAULT_INJECTION: forcing a failure. [ 72.606489][ T4958] name failslab, interval 1, probability 0, space 0, times 1 [ 72.608526][ T4958] CPU: 1 PID: 4958 Comm: syz.0.15 Not tainted syzkaller #0 [ 72.609584][ T4958] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 72.611035][ T4958] Call trace: [ 72.611480][ T4958] dump_backtrace+0x0/0x458 [ 72.612117][ T4958] show_stack+0x2c/0x3c [ 72.612729][ T4958] __dump_stack+0x30/0x40 [ 72.613315][ T4958] dump_stack_lvl+0xf4/0x15c [ 72.613976][ T4958] dump_stack+0x1c/0x5c [ 72.614536][ T4958] should_fail+0x3bc/0x514 [ 72.615153][ T4958] __should_failslab+0xbc/0x10c [ 72.615851][ T4958] should_failslab+0x10/0x28 [ 72.616491][ T4958] slab_pre_alloc_hook+0x64/0xe8 [ 72.617251][ T4958] kmem_cache_alloc+0x94/0x3d4 [ 72.617952][ T4958] btrfs_alloc_path+0x5c/0x68 [ 72.618718][ T4958] btrfs_insert_dir_item+0x184/0x3e8 [ 72.619543][ T4958] btrfs_add_link+0x2b0/0xa9c [ 72.620242][ T4958] btrfs_create+0x468/0x514 [ 72.620902][ T4958] path_openat+0xe18/0x2718 [ 72.621562][ T4958] do_filp_open+0x184/0x368 [ 72.622180][ T4958] do_sys_openat2+0x134/0x3f4 [ 72.622857][ T4958] __arm64_sys_openat+0x118/0x14c [ 72.623592][ T4958] invoke_syscall+0x98/0x2b0 [ 72.624291][ T4958] el0_svc_common+0x138/0x258 [ 72.624982][ T4958] do_el0_svc+0x58/0x13c [ 72.625563][ T4958] el0_svc+0x78/0x1d0 [ 72.626121][ T4958] el0t_64_sync_handler+0xcc/0xe4 [ 72.626825][ T4958] el0t_64_sync+0x1a0/0x1a4 [ 72.628083][ T4958] ------------[ cut here ]------------ [ 72.629000][ T4958] WARNING: CPU: 1 PID: 4958 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 72.630262][ T4958] Modules linked in: [ 72.630839][ T4958] CPU: 1 PID: 4958 Comm: syz.0.15 Not tainted syzkaller #0 [ 72.631844][ T4958] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 72.633241][ T4958] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 72.634375][ T4958] pc : btrfs_add_link+0x718/0xa9c [ 72.635157][ T4958] lr : btrfs_add_link+0x718/0xa9c [ 72.635920][ T4958] sp : ffff80001fb87580 [ 72.636528][ T4958] x29: ffff80001fb87680 x28: ffff0000de7bc210 x27: 0000000000000108 [ 72.637678][ T4958] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 72.638796][ T4958] x23: 0000000000000014 x22: 1fffe0001bcf784d x21: ffff700003f70eb8 [ 72.640038][ T4958] x20: 00000000fffffff4 x19: ffff0000de7bc268 x18: 0000000000000001 [ 72.641346][ T4958] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 72.642570][ T4958] x14: 0000000000000001 x13: 1ffff00003f70dd0 x12: 0000000000ff0100 [ 72.643713][ T4958] x11: 0000000000000000 x10: 0000000000000000 x9 : 2e4a33575c777b00 [ 72.644830][ T4958] x8 : 2e4a33575c777b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 72.645919][ T4958] x5 : ffff80001fb86e98 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 72.647086][ T4958] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 72.648258][ T4958] Call trace: [ 72.648711][ T4958] btrfs_add_link+0x718/0xa9c [ 72.649416][ T4958] btrfs_create+0x468/0x514 [ 72.650113][ T4958] path_openat+0xe18/0x2718 [ 72.650732][ T4958] do_filp_open+0x184/0x368 [ 72.651310][ T4958] do_sys_openat2+0x134/0x3f4 [ 72.652048][ T4958] __arm64_sys_openat+0x118/0x14c [ 72.652745][ T4958] invoke_syscall+0x98/0x2b0 [ 72.653454][ T4958] el0_svc_common+0x138/0x258 [ 72.654077][ T4958] do_el0_svc+0x58/0x13c [ 72.654743][ T4958] el0_svc+0x78/0x1d0 [ 72.655374][ T4958] el0t_64_sync_handler+0xcc/0xe4 [ 72.656106][ T4958] el0t_64_sync+0x1a0/0x1a4 [ 72.656753][ T4958] irq event stamp: 81950 [ 72.657328][ T4958] hardirqs last enabled at (81949): [] __up_console_sem+0xb4/0xfc [ 72.658624][ T4958] hardirqs last disabled at (81950): [] el1_dbg+0x24/0x80 [ 72.659832][ T4958] softirqs last enabled at (81930): [] handle_softirqs+0xa40/0xbe4 [ 72.661110][ T4958] softirqs last disabled at (81909): [] __irq_exit_rcu+0x240/0x43c [ 72.662454][ T4958] ---[ end trace b6d5b913444c0653 ]--- [ 72.663936][ T4958] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 72.665265][ T4958] BTRFS info (device loop0): forced readonly [ 72.850112][ T4990] loop0: detected capacity change from 0 to 32768 [ 72.891308][ T4990] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.16 (4990) [ 72.957195][ T4990] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 72.958622][ T4990] BTRFS info (device loop0): setting nodatacow, compression disabled [ 72.961258][ T4990] BTRFS info (device loop0): setting datacow [ 72.962307][ T4990] BTRFS info (device loop0): doing ref verification [ 72.963412][ T4990] BTRFS info (device loop0): force clearing of disk cache [ 72.964512][ T4990] BTRFS info (device loop0): turning off barriers [ 72.965384][ T4990] BTRFS info (device loop0): use zlib compression, level 3 [ 72.966382][ T4990] BTRFS info (device loop0): using free space tree [ 72.967292][ T4990] BTRFS info (device loop0): has skinny extents [ 72.982301][ T4990] BTRFS info (device loop0): clearing free space tree [ 72.983471][ T4990] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 72.984842][ T4990] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 72.988545][ T4990] BTRFS info (device loop0): creating free space tree [ 72.991147][ T4990] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 72.992609][ T4990] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 72.996706][ T4990] FAULT_INJECTION: forcing a failure. [ 72.996706][ T4990] name failslab, interval 1, probability 0, space 0, times 0 [ 72.998730][ T4990] CPU: 0 PID: 4990 Comm: syz.0.16 Tainted: G W syzkaller #0 [ 73.000011][ T4990] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.001462][ T4990] Call trace: [ 73.001881][ T4990] dump_backtrace+0x0/0x458 [ 73.002627][ T4990] show_stack+0x2c/0x3c [ 73.003242][ T4990] __dump_stack+0x30/0x40 [ 73.003891][ T4990] dump_stack_lvl+0xf4/0x15c [ 73.004573][ T4990] dump_stack+0x1c/0x5c [ 73.005180][ T4990] should_fail+0x3bc/0x514 [ 73.005840][ T4990] __should_failslab+0xbc/0x10c [ 73.006577][ T4990] should_failslab+0x10/0x28 [ 73.007221][ T4990] slab_pre_alloc_hook+0x64/0xe8 [ 73.007914][ T4990] kmem_cache_alloc+0x94/0x3d4 [ 73.008586][ T4990] btrfs_alloc_path+0x5c/0x68 [ 73.009286][ T4990] btrfs_insert_dir_item+0x184/0x3e8 [ 73.010085][ T4990] btrfs_add_link+0x2b0/0xa9c [ 73.010763][ T4990] btrfs_create+0x468/0x514 [ 73.011441][ T4990] path_openat+0xe18/0x2718 [ 73.012098][ T4990] do_filp_open+0x184/0x368 [ 73.012745][ T4990] do_sys_openat2+0x134/0x3f4 [ 73.013387][ T4990] __arm64_sys_openat+0x118/0x14c [ 73.014088][ T4990] invoke_syscall+0x98/0x2b0 [ 73.014739][ T4990] el0_svc_common+0x138/0x258 [ 73.015437][ T4990] do_el0_svc+0x58/0x13c [ 73.016067][ T4990] el0_svc+0x78/0x1d0 [ 73.016756][ T4990] el0t_64_sync_handler+0xcc/0xe4 [ 73.017430][ T4990] el0t_64_sync+0x1a0/0x1a4 [ 73.020198][ T4990] ------------[ cut here ]------------ [ 73.021163][ T4990] WARNING: CPU: 0 PID: 4990 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 73.022375][ T4990] Modules linked in: [ 73.022890][ T4990] CPU: 0 PID: 4990 Comm: syz.0.16 Tainted: G W syzkaller #0 [ 73.024141][ T4990] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.025643][ T4990] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.026769][ T4990] pc : btrfs_add_link+0x718/0xa9c [ 73.027509][ T4990] lr : btrfs_add_link+0x718/0xa9c [ 73.028294][ T4990] sp : ffff800020077580 [ 73.028875][ T4990] x29: ffff800020077680 x28: ffff0000de6ca210 x27: 0000000000000108 [ 73.030022][ T4990] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 73.031142][ T4990] x23: 0000000000000014 x22: 1fffe0001bcd944d x21: ffff70000400eeb8 [ 73.032330][ T4990] x20: 00000000fffffff4 x19: ffff0000de6ca268 x18: 0000000000000001 [ 73.033457][ T4990] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 73.034752][ T4990] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 73.035935][ T4990] x11: 0000000000000000 x10: 0000000000000000 x9 : 8ced918d8fe1ce00 [ 73.037215][ T4990] x8 : 8ced918d8fe1ce00 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.038382][ T4990] x5 : ffff800020076e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 73.039491][ T4990] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.040635][ T4990] Call trace: [ 73.041120][ T4990] btrfs_add_link+0x718/0xa9c [ 73.041868][ T4990] btrfs_create+0x468/0x514 [ 73.042475][ T4990] path_openat+0xe18/0x2718 [ 73.043184][ T4990] do_filp_open+0x184/0x368 [ 73.043787][ T4990] do_sys_openat2+0x134/0x3f4 [ 73.044485][ T4990] __arm64_sys_openat+0x118/0x14c [ 73.045199][ T4990] invoke_syscall+0x98/0x2b0 [ 73.045864][ T4990] el0_svc_common+0x138/0x258 [ 73.046578][ T4990] do_el0_svc+0x58/0x13c [ 73.047230][ T4990] el0_svc+0x78/0x1d0 [ 73.047841][ T4990] el0t_64_sync_handler+0xcc/0xe4 [ 73.048568][ T4990] el0t_64_sync+0x1a0/0x1a4 [ 73.049211][ T4990] irq event stamp: 80254 [ 73.049768][ T4990] hardirqs last enabled at (80253): [] __up_console_sem+0xb4/0xfc [ 73.051176][ T4990] hardirqs last disabled at (80254): [] el1_dbg+0x24/0x80 [ 73.052503][ T4990] softirqs last enabled at (80234): [] handle_softirqs+0xa40/0xbe4 [ 73.053958][ T4990] softirqs last disabled at (80201): [] __irq_exit_rcu+0x240/0x43c [ 73.055313][ T4990] ---[ end trace b6d5b913444c0654 ]--- [ 73.060184][ T4990] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 73.061493][ T4990] BTRFS info (device loop0): forced readonly [ 73.212292][ T5019] loop0: detected capacity change from 0 to 32768 [ 73.261192][ T5019] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.17 (5019) [ 73.281543][ T1608] device hsr_slave_0 left promiscuous mode [ 73.302287][ T5019] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 73.303604][ T5019] BTRFS info (device loop0): setting nodatacow, compression disabled [ 73.304864][ T5019] BTRFS info (device loop0): setting datacow [ 73.305752][ T5019] BTRFS info (device loop0): doing ref verification [ 73.306678][ T5019] BTRFS info (device loop0): force clearing of disk cache [ 73.307682][ T5019] BTRFS info (device loop0): turning off barriers [ 73.308682][ T5019] BTRFS info (device loop0): use zlib compression, level 3 [ 73.309685][ T5019] BTRFS info (device loop0): using free space tree [ 73.312204][ T5019] BTRFS info (device loop0): has skinny extents [ 73.326026][ T5019] BTRFS info (device loop0): clearing free space tree [ 73.326996][ T5019] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 73.328399][ T5019] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 73.331706][ T5019] BTRFS info (device loop0): creating free space tree [ 73.332951][ T5019] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 73.334489][ T5019] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 73.338940][ T5019] FAULT_INJECTION: forcing a failure. [ 73.338940][ T5019] name failslab, interval 1, probability 0, space 0, times 0 [ 73.341269][ T1608] device hsr_slave_1 left promiscuous mode [ 73.342933][ T5019] CPU: 0 PID: 5019 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 73.344251][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.345751][ T5019] Call trace: [ 73.346206][ T5019] dump_backtrace+0x0/0x458 [ 73.346853][ T5019] show_stack+0x2c/0x3c [ 73.347418][ T5019] __dump_stack+0x30/0x40 [ 73.348036][ T5019] dump_stack_lvl+0xf4/0x15c [ 73.348715][ T5019] dump_stack+0x1c/0x5c [ 73.349284][ T5019] should_fail+0x3bc/0x514 [ 73.349900][ T5019] __should_failslab+0xbc/0x10c [ 73.350649][ T5019] should_failslab+0x10/0x28 [ 73.351291][ T5019] slab_pre_alloc_hook+0x64/0xe8 [ 73.351947][ T5019] kmem_cache_alloc+0x94/0x3d4 [ 73.352651][ T5019] btrfs_alloc_path+0x5c/0x68 [ 73.353233][ T5019] btrfs_insert_dir_item+0x184/0x3e8 [ 73.354009][ T5019] btrfs_add_link+0x2b0/0xa9c [ 73.354714][ T5019] btrfs_create+0x468/0x514 [ 73.355391][ T5019] path_openat+0xe18/0x2718 [ 73.356104][ T5019] do_filp_open+0x184/0x368 [ 73.356815][ T5019] do_sys_openat2+0x134/0x3f4 [ 73.357497][ T5019] __arm64_sys_openat+0x118/0x14c [ 73.358189][ T5019] invoke_syscall+0x98/0x2b0 [ 73.358898][ T5019] el0_svc_common+0x138/0x258 [ 73.359522][ T5019] do_el0_svc+0x58/0x13c [ 73.360218][ T5019] el0_svc+0x78/0x1d0 [ 73.360780][ T5019] el0t_64_sync_handler+0xcc/0xe4 [ 73.361587][ T5019] el0t_64_sync+0x1a0/0x1a4 [ 73.362994][ T5019] ------------[ cut here ]------------ [ 73.364202][ T5019] WARNING: CPU: 0 PID: 5019 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 73.365454][ T5019] Modules linked in: [ 73.365998][ T5019] CPU: 0 PID: 5019 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 73.367183][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.368600][ T5019] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.369688][ T5019] pc : btrfs_add_link+0x718/0xa9c [ 73.370372][ T5019] lr : btrfs_add_link+0x718/0xa9c [ 73.371089][ T5019] sp : ffff800020077580 [ 73.371637][ T5019] x29: ffff800020077680 x28: ffff0000de6ca4d0 x27: 0000000000000108 [ 73.372786][ T5019] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 73.373998][ T5019] x23: 0000000000000014 x22: 1fffe0001bcd94a5 x21: ffff70000400eeb8 [ 73.375157][ T5019] x20: 00000000fffffff4 x19: ffff0000de6ca528 x18: 0000000000000001 [ 73.376338][ T5019] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 73.377440][ T5019] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 73.378601][ T5019] x11: 0000000000000000 x10: 0000000000000000 x9 : 819ea780209f7600 [ 73.379749][ T5019] x8 : 819ea780209f7600 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.380934][ T5019] x5 : ffff800020076e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 73.382068][ T5019] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.383237][ T5019] Call trace: [ 73.383712][ T5019] btrfs_add_link+0x718/0xa9c [ 73.384409][ T5019] btrfs_create+0x468/0x514 [ 73.385003][ T5019] path_openat+0xe18/0x2718 [ 73.385647][ T5019] do_filp_open+0x184/0x368 [ 73.386305][ T5019] do_sys_openat2+0x134/0x3f4 [ 73.386999][ T5019] __arm64_sys_openat+0x118/0x14c [ 73.387734][ T5019] invoke_syscall+0x98/0x2b0 [ 73.388388][ T5019] el0_svc_common+0x138/0x258 [ 73.389051][ T5019] do_el0_svc+0x58/0x13c [ 73.389689][ T5019] el0_svc+0x78/0x1d0 [ 73.390340][ T5019] el0t_64_sync_handler+0xcc/0xe4 [ 73.391054][ T5019] el0t_64_sync+0x1a0/0x1a4 [ 73.391684][ T5019] irq event stamp: 79908 [ 73.392277][ T5019] hardirqs last enabled at (79907): [] __up_console_sem+0xb4/0xfc [ 73.393633][ T5019] hardirqs last disabled at (79908): [] el1_dbg+0x24/0x80 [ 73.394825][ T5019] softirqs last enabled at (79884): [] handle_softirqs+0xa40/0xbe4 [ 73.396132][ T5019] softirqs last disabled at (79805): [] __irq_exit_rcu+0x240/0x43c [ 73.397469][ T5019] ---[ end trace b6d5b913444c0655 ]--- [ 73.399137][ T5019] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 73.400709][ T5019] BTRFS info (device loop0): forced readonly [ 73.440079][ T1608] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 73.441282][ T1608] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 73.442807][ T1608] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 73.443943][ T1608] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 73.445210][ T1608] device bridge_slave_1 left promiscuous mode [ 73.446153][ T1608] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.502130][ T1608] device bridge_slave_0 left promiscuous mode [ 73.503192][ T1608] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.573025][ T5042] loop0: detected capacity change from 0 to 32768 [ 73.576632][ T5042] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.18 (5042) [ 73.581378][ T5042] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 73.582937][ T5042] BTRFS info (device loop0): setting nodatacow, compression disabled [ 73.584115][ T5042] BTRFS info (device loop0): setting datacow [ 73.584938][ T5042] BTRFS info (device loop0): doing ref verification [ 73.585901][ T5042] BTRFS info (device loop0): force clearing of disk cache [ 73.586963][ T5042] BTRFS info (device loop0): turning off barriers [ 73.587967][ T5042] BTRFS info (device loop0): use zlib compression, level 3 [ 73.588984][ T5042] BTRFS info (device loop0): using free space tree [ 73.590530][ T5042] BTRFS info (device loop0): has skinny extents [ 73.599020][ T5042] BTRFS info (device loop0): clearing free space tree [ 73.600191][ T5042] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 73.603488][ T5042] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 73.606782][ T5042] BTRFS info (device loop0): creating free space tree [ 73.608123][ T5042] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 73.609712][ T5042] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 73.614446][ T5042] FAULT_INJECTION: forcing a failure. [ 73.614446][ T5042] name failslab, interval 1, probability 0, space 0, times 0 [ 73.616309][ T5042] CPU: 0 PID: 5042 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 73.617813][ T5042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.619414][ T5042] Call trace: [ 73.619881][ T5042] dump_backtrace+0x0/0x458 [ 73.620596][ T5042] show_stack+0x2c/0x3c [ 73.621228][ T5042] __dump_stack+0x30/0x40 [ 73.621885][ T5042] dump_stack_lvl+0xf4/0x15c [ 73.622556][ T5042] dump_stack+0x1c/0x5c [ 73.623177][ T5042] should_fail+0x3bc/0x514 [ 73.623877][ T5042] __should_failslab+0xbc/0x10c [ 73.624618][ T5042] should_failslab+0x10/0x28 [ 73.625237][ T5042] slab_pre_alloc_hook+0x64/0xe8 [ 73.625995][ T5042] kmem_cache_alloc+0x94/0x3d4 [ 73.626818][ T5042] btrfs_alloc_path+0x5c/0x68 [ 73.627472][ T5042] btrfs_insert_dir_item+0x184/0x3e8 [ 73.628182][ T5042] btrfs_add_link+0x2b0/0xa9c [ 73.628904][ T5042] btrfs_create+0x468/0x514 [ 73.629512][ T5042] path_openat+0xe18/0x2718 [ 73.630156][ T5042] do_filp_open+0x184/0x368 [ 73.630813][ T5042] do_sys_openat2+0x134/0x3f4 [ 73.631470][ T5042] __arm64_sys_openat+0x118/0x14c [ 73.632116][ T5042] invoke_syscall+0x98/0x2b0 [ 73.632788][ T5042] el0_svc_common+0x138/0x258 [ 73.633499][ T5042] do_el0_svc+0x58/0x13c [ 73.634091][ T5042] el0_svc+0x78/0x1d0 [ 73.634673][ T5042] el0t_64_sync_handler+0xcc/0xe4 [ 73.635355][ T5042] el0t_64_sync+0x1a0/0x1a4 [ 73.637616][ T5042] ------------[ cut here ]------------ [ 73.638652][ T5042] WARNING: CPU: 1 PID: 5042 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 73.640051][ T5042] Modules linked in: [ 73.640655][ T5042] CPU: 1 PID: 5042 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 73.641934][ T5042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.643431][ T5042] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.644649][ T5042] pc : btrfs_add_link+0x718/0xa9c [ 73.645372][ T5042] lr : btrfs_add_link+0x718/0xa9c [ 73.646186][ T5042] sp : ffff8000200c7580 [ 73.646814][ T5042] x29: ffff8000200c7680 x28: ffff0000de6ca790 x27: 0000000000000108 [ 73.647964][ T5042] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 73.649160][ T5042] x23: 0000000000000014 x22: 1fffe0001bcd94fd x21: ffff700004018eb8 [ 73.650332][ T5042] x20: 00000000fffffff4 x19: ffff0000de6ca7e8 x18: 0000000000000001 [ 73.651535][ T5042] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 73.652694][ T5042] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 73.654081][ T5042] x11: 0000000000000000 x10: 0000000000000000 x9 : 9ed050defe646200 [ 73.655431][ T5042] x8 : 9ed050defe646200 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.656604][ T5042] x5 : ffff8000200c6e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 73.657738][ T5042] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.658871][ T5042] Call trace: [ 73.659316][ T5042] btrfs_add_link+0x718/0xa9c [ 73.659948][ T5042] btrfs_create+0x468/0x514 [ 73.660658][ T5042] path_openat+0xe18/0x2718 [ 73.661399][ T5042] do_filp_open+0x184/0x368 [ 73.662132][ T5042] do_sys_openat2+0x134/0x3f4 [ 73.662860][ T5042] __arm64_sys_openat+0x118/0x14c [ 73.663655][ T5042] invoke_syscall+0x98/0x2b0 [ 73.664395][ T5042] el0_svc_common+0x138/0x258 [ 73.665137][ T5042] do_el0_svc+0x58/0x13c [ 73.665739][ T5042] el0_svc+0x78/0x1d0 [ 73.666272][ T5042] el0t_64_sync_handler+0xcc/0xe4 [ 73.667032][ T5042] el0t_64_sync+0x1a0/0x1a4 [ 73.667707][ T5042] irq event stamp: 80518 [ 73.668302][ T5042] hardirqs last enabled at (80517): [] __up_console_sem+0xb4/0xfc [ 73.669659][ T5042] hardirqs last disabled at (80518): [] el1_dbg+0x24/0x80 [ 73.670928][ T5042] softirqs last enabled at (80498): [] handle_softirqs+0xa40/0xbe4 [ 73.672299][ T5042] softirqs last disabled at (80407): [] __irq_exit_rcu+0x240/0x43c [ 73.673690][ T5042] ---[ end trace b6d5b913444c0656 ]--- [ 73.675386][ T5042] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 73.676597][ T5042] BTRFS info (device loop0): forced readonly [ 73.690266][ T1608] device veth1_macvtap left promiscuous mode [ 73.691256][ T1608] device veth0_macvtap left promiscuous mode [ 73.692243][ T1608] device veth1_vlan left promiscuous mode [ 73.693129][ T1608] device veth0_vlan left promiscuous mode [ 73.828299][ T1608] team0 (unregistering): Port device team_slave_1 removed [ 73.834173][ T1608] team0 (unregistering): Port device team_slave_0 removed [ 73.837999][ T1608] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 73.879220][ T5063] loop0: detected capacity change from 0 to 32768 [ 73.893514][ T1608] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 73.990140][ T5063] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.19 (5063) [ 73.994655][ T1608] bond0 (unregistering): Released all slaves [ 74.002096][ T5063] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 74.003511][ T5063] BTRFS info (device loop0): setting nodatacow, compression disabled [ 74.004624][ T5063] BTRFS info (device loop0): setting datacow [ 74.005485][ T5063] BTRFS info (device loop0): doing ref verification [ 74.006426][ T5063] BTRFS info (device loop0): force clearing of disk cache [ 74.007447][ T5063] BTRFS info (device loop0): turning off barriers [ 74.008375][ T5063] BTRFS info (device loop0): use zlib compression, level 3 [ 74.009310][ T5063] BTRFS info (device loop0): using free space tree [ 74.010382][ T5063] BTRFS info (device loop0): has skinny extents [ 74.023949][ T5063] BTRFS info (device loop0): clearing free space tree [ 74.024932][ T5063] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 74.026399][ T5063] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 74.029749][ T5063] BTRFS info (device loop0): creating free space tree [ 74.031631][ T5063] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 74.033157][ T5063] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 74.037108][ T5063] FAULT_INJECTION: forcing a failure. [ 74.037108][ T5063] name failslab, interval 1, probability 0, space 0, times 0 [ 74.039201][ T5063] CPU: 1 PID: 5063 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 74.040447][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.041842][ T5063] Call trace: [ 74.042316][ T5063] dump_backtrace+0x0/0x458 [ 74.043040][ T5063] show_stack+0x2c/0x3c [ 74.043643][ T5063] __dump_stack+0x30/0x40 [ 74.044276][ T5063] dump_stack_lvl+0xf4/0x15c [ 74.044974][ T5063] dump_stack+0x1c/0x5c [ 74.045625][ T5063] should_fail+0x3bc/0x514 [ 74.046276][ T5063] __should_failslab+0xbc/0x10c [ 74.046964][ T5063] should_failslab+0x10/0x28 [ 74.047608][ T5063] slab_pre_alloc_hook+0x64/0xe8 [ 74.048310][ T5063] kmem_cache_alloc+0x94/0x3d4 [ 74.049030][ T5063] btrfs_alloc_path+0x5c/0x68 [ 74.049749][ T5063] btrfs_insert_dir_item+0x184/0x3e8 [ 74.050476][ T5063] btrfs_add_link+0x2b0/0xa9c [ 74.051174][ T5063] btrfs_create+0x468/0x514 [ 74.051805][ T5063] path_openat+0xe18/0x2718 [ 74.052347][ T5063] do_filp_open+0x184/0x368 [ 74.052903][ T5063] do_sys_openat2+0x134/0x3f4 [ 74.053568][ T5063] __arm64_sys_openat+0x118/0x14c [ 74.054334][ T5063] invoke_syscall+0x98/0x2b0 [ 74.054973][ T5063] el0_svc_common+0x138/0x258 [ 74.055673][ T5063] do_el0_svc+0x58/0x13c [ 74.056328][ T5063] el0_svc+0x78/0x1d0 [ 74.056899][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 74.057623][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 74.060194][ T5063] ------------[ cut here ]------------ [ 74.061204][ T5063] WARNING: CPU: 1 PID: 5063 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 74.062630][ T5063] Modules linked in: [ 74.063197][ T5063] CPU: 1 PID: 5063 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 74.064368][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.065738][ T5063] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.066894][ T5063] pc : btrfs_add_link+0x718/0xa9c [ 74.067594][ T5063] lr : btrfs_add_link+0x718/0xa9c [ 74.068277][ T5063] sp : ffff8000200c7580 [ 74.068863][ T5063] x29: ffff8000200c7680 x28: ffff0000de7bc4d0 x27: 0000000000000108 [ 74.070085][ T5063] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 74.071279][ T5063] x23: 0000000000000014 x22: 1fffe0001bcf78a5 x21: ffff700004018eb8 [ 74.072471][ T5063] x20: 00000000fffffff4 x19: ffff0000de7bc528 x18: 0000000000000001 [ 74.073669][ T5063] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 74.074825][ T5063] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 74.076008][ T5063] x11: 0000000000000000 x10: 0000000000000000 x9 : e3b9a2b295ac2800 [ 74.077217][ T5063] x8 : e3b9a2b295ac2800 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.078355][ T5063] x5 : ffff8000200c6e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 74.079500][ T5063] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.080594][ T5063] Call trace: [ 74.081146][ T5063] btrfs_add_link+0x718/0xa9c [ 74.081916][ T5063] btrfs_create+0x468/0x514 [ 74.082568][ T5063] path_openat+0xe18/0x2718 [ 74.083267][ T5063] do_filp_open+0x184/0x368 [ 74.083898][ T5063] do_sys_openat2+0x134/0x3f4 [ 74.084668][ T5063] __arm64_sys_openat+0x118/0x14c [ 74.085394][ T5063] invoke_syscall+0x98/0x2b0 [ 74.086068][ T5063] el0_svc_common+0x138/0x258 [ 74.086730][ T5063] do_el0_svc+0x58/0x13c [ 74.087316][ T5063] el0_svc+0x78/0x1d0 [ 74.087913][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 74.088566][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 74.089206][ T5063] irq event stamp: 80408 [ 74.089836][ T5063] hardirqs last enabled at (80407): [] __up_console_sem+0xb4/0xfc [ 74.091253][ T5063] hardirqs last disabled at (80408): [] el1_dbg+0x24/0x80 [ 74.092646][ T5063] softirqs last enabled at (80384): [] handle_softirqs+0xa40/0xbe4 [ 74.094035][ T5063] softirqs last disabled at (80365): [] __irq_exit_rcu+0x240/0x43c [ 74.095463][ T5063] ---[ end trace b6d5b913444c0657 ]--- [ 74.097283][ T5063] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 74.098656][ T5063] BTRFS info (device loop0): forced readonly [ 74.280244][ T5085] loop0: detected capacity change from 0 to 32768 [ 74.332508][ T5085] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.20 (5085) [ 74.335663][ T5085] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 74.337029][ T5085] BTRFS info (device loop0): setting nodatacow, compression disabled [ 74.338315][ T5085] BTRFS info (device loop0): setting datacow [ 74.339191][ T5085] BTRFS info (device loop0): doing ref verification [ 74.345880][ T5085] BTRFS info (device loop0): force clearing of disk cache [ 74.346961][ T5085] BTRFS info (device loop0): turning off barriers [ 74.347958][ T5085] BTRFS info (device loop0): use zlib compression, level 3 [ 74.349148][ T5085] BTRFS info (device loop0): using free space tree [ 74.350666][ T5085] BTRFS info (device loop0): has skinny extents [ 74.360924][ T5085] BTRFS info (device loop0): clearing free space tree [ 74.361951][ T5085] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 74.363477][ T5085] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 74.366534][ T5085] BTRFS info (device loop0): creating free space tree [ 74.367847][ T5085] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 74.369385][ T5085] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 74.377635][ T5085] FAULT_INJECTION: forcing a failure. [ 74.377635][ T5085] name failslab, interval 1, probability 0, space 0, times 0 [ 74.379658][ T5085] CPU: 1 PID: 5085 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 74.381006][ T5085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.382532][ T5085] Call trace: [ 74.382984][ T5085] dump_backtrace+0x0/0x458 [ 74.383642][ T5085] show_stack+0x2c/0x3c [ 74.384234][ T5085] __dump_stack+0x30/0x40 [ 74.384859][ T5085] dump_stack_lvl+0xf4/0x15c [ 74.385583][ T5085] dump_stack+0x1c/0x5c [ 74.386195][ T5085] should_fail+0x3bc/0x514 [ 74.386836][ T5085] __should_failslab+0xbc/0x10c [ 74.387592][ T5085] should_failslab+0x10/0x28 [ 74.388280][ T5085] slab_pre_alloc_hook+0x64/0xe8 [ 74.389042][ T5085] kmem_cache_alloc+0x94/0x3d4 [ 74.389730][ T5085] btrfs_get_or_create_delayed_node+0x114/0x4a8 [ 74.390590][ T5085] btrfs_delayed_update_inode+0x3c/0x1b68 [ 74.391377][ T5085] btrfs_update_inode+0x210/0x3d4 [ 74.392109][ T5085] btrfs_create+0x364/0x514 [ 74.392757][ T5085] path_openat+0xe18/0x2718 [ 74.393424][ T5085] do_filp_open+0x184/0x368 [ 74.394127][ T5085] do_sys_openat2+0x134/0x3f4 [ 74.394933][ T5085] __arm64_sys_openat+0x118/0x14c [ 74.395668][ T5085] invoke_syscall+0x98/0x2b0 [ 74.396318][ T5085] el0_svc_common+0x138/0x258 [ 74.397021][ T5085] do_el0_svc+0x58/0x13c [ 74.397610][ T5085] el0_svc+0x78/0x1d0 [ 74.398207][ T5085] el0t_64_sync_handler+0xcc/0xe4 [ 74.398934][ T5085] el0t_64_sync+0x1a0/0x1a4 [ 74.430291][ T5012] Bluetooth: hci0: command 0x0419 tx timeout [ 74.548776][ T5107] loop0: detected capacity change from 0 to 32768 [ 74.602712][ T5107] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.21 (5107) [ 74.656654][ T5107] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 74.657926][ T5107] BTRFS info (device loop0): setting nodatacow, compression disabled [ 74.659096][ T5107] BTRFS info (device loop0): setting datacow [ 74.660642][ T5107] BTRFS info (device loop0): doing ref verification [ 74.661620][ T5107] BTRFS info (device loop0): force clearing of disk cache [ 74.676568][ T5107] FAULT_INJECTION: forcing a failure. [ 74.676568][ T5107] name failslab, interval 1, probability 0, space 0, times 0 [ 74.678452][ T5107] CPU: 0 PID: 5107 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 74.679693][ T5107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.681057][ T5107] Call trace: [ 74.681484][ T5107] dump_backtrace+0x0/0x458 [ 74.682096][ T5107] show_stack+0x2c/0x3c [ 74.682703][ T5107] __dump_stack+0x30/0x40 [ 74.683291][ T5107] dump_stack_lvl+0xf4/0x15c [ 74.683954][ T5107] dump_stack+0x1c/0x5c [ 74.684536][ T5107] should_fail+0x3bc/0x514 [ 74.685141][ T5107] __should_failslab+0xbc/0x10c [ 74.685908][ T5107] should_failslab+0x10/0x28 [ 74.686537][ T5107] slab_pre_alloc_hook+0x64/0xe8 [ 74.687276][ T5107] kmem_cache_alloc+0x94/0x3d4 [ 74.688003][ T5107] btrfs_alloc_path+0x5c/0x68 [ 74.688727][ T5107] btrfs_insert_dir_item+0x184/0x3e8 [ 74.689525][ T5107] btrfs_add_link+0x2b0/0xa9c [ 74.690251][ T5107] btrfs_create+0x468/0x514 [ 74.690972][ T5107] path_openat+0xe18/0x2718 [ 74.691655][ T5107] do_filp_open+0x184/0x368 [ 74.692340][ T5107] do_sys_openat2+0x134/0x3f4 [ 74.692973][ T5107] __arm64_sys_openat+0x118/0x14c [ 74.693767][ T5107] invoke_syscall+0x98/0x2b0 [ 74.694412][ T5107] el0_svc_common+0x138/0x258 [ 74.695115][ T5107] do_el0_svc+0x58/0x13c [ 74.695743][ T5107] el0_svc+0x78/0x1d0 [ 74.696343][ T5107] el0t_64_sync_handler+0xcc/0xe4 [ 74.697078][ T5107] el0t_64_sync+0x1a0/0x1a4 [ 74.701977][ T5107] ------------[ cut here ]------------ [ 74.702984][ T5107] WARNING: CPU: 1 PID: 5107 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 74.704403][ T5107] Modules linked in: [ 74.705024][ T5107] CPU: 1 PID: 5107 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 74.706260][ T5107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.707770][ T5107] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.709034][ T5107] pc : btrfs_add_link+0x718/0xa9c [ 74.709788][ T5107] lr : btrfs_add_link+0x718/0xa9c [ 74.710539][ T5107] sp : ffff800020637580 [ 74.711179][ T5107] x29: ffff800020637680 x28: ffff0000de6cabb0 x27: 0000000000000108 [ 74.712406][ T5107] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 74.713539][ T5107] x23: 0000000000000014 x22: 1fffe0001bcd9581 x21: ffff7000040c6eb8 [ 74.714744][ T5107] x20: 00000000fffffff4 x19: ffff0000de6cac08 x18: 0000000000000001 [ 74.715935][ T5107] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 74.717059][ T5107] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 74.718294][ T5107] x11: 0000000000000000 x10: 0000000000000000 x9 : c2bf553670529b00 [ 74.719407][ T5107] x8 : c2bf553670529b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.720513][ T5107] x5 : ffff800020636e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 74.721585][ T5107] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.722683][ T5107] Call trace: [ 74.723110][ T5107] btrfs_add_link+0x718/0xa9c [ 74.723738][ T5107] btrfs_create+0x468/0x514 [ 74.724395][ T5107] path_openat+0xe18/0x2718 [ 74.725037][ T5107] do_filp_open+0x184/0x368 [ 74.725632][ T5107] do_sys_openat2+0x134/0x3f4 [ 74.726190][ T5107] __arm64_sys_openat+0x118/0x14c [ 74.726943][ T5107] invoke_syscall+0x98/0x2b0 [ 74.727563][ T5107] el0_svc_common+0x138/0x258 [ 74.728197][ T5107] do_el0_svc+0x58/0x13c [ 74.728753][ T5107] el0_svc+0x78/0x1d0 [ 74.729320][ T5107] el0t_64_sync_handler+0xcc/0xe4 [ 74.729997][ T5107] el0t_64_sync+0x1a0/0x1a4 [ 74.730611][ T5107] irq event stamp: 79996 [ 74.731263][ T5107] hardirqs last enabled at (79995): [] __up_console_sem+0xb4/0xfc [ 74.732577][ T5107] hardirqs last disabled at (79996): [] el1_dbg+0x24/0x80 [ 74.733751][ T5107] softirqs last enabled at (79976): [] handle_softirqs+0xa40/0xbe4 [ 74.735104][ T5107] softirqs last disabled at (79897): [] __irq_exit_rcu+0x240/0x43c [ 74.736314][ T5107] ---[ end trace b6d5b913444c0658 ]--- [ 74.737518][ T5107] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 74.879801][ T5130] loop0: detected capacity change from 0 to 32768 [ 74.944717][ T5130] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.22 (5130) [ 74.964029][ T5130] FAULT_INJECTION: forcing a failure. [ 74.964029][ T5130] name failslab, interval 1, probability 0, space 0, times 0 [ 74.966021][ T5130] CPU: 1 PID: 5130 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 74.967291][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.968776][ T5130] Call trace: [ 74.969268][ T5130] dump_backtrace+0x0/0x458 [ 74.969937][ T5130] show_stack+0x2c/0x3c [ 74.970568][ T5130] __dump_stack+0x30/0x40 [ 74.971184][ T5130] dump_stack_lvl+0xf4/0x15c [ 74.971923][ T5130] dump_stack+0x1c/0x5c [ 74.972558][ T5130] should_fail+0x3bc/0x514 [ 74.973218][ T5130] __should_failslab+0xbc/0x10c [ 74.973930][ T5130] should_failslab+0x10/0x28 [ 74.974600][ T5130] slab_pre_alloc_hook+0x64/0xe8 [ 74.975320][ T5130] kmem_cache_alloc+0x94/0x3d4 [ 74.975989][ T5130] btrfs_alloc_path+0x5c/0x68 [ 74.976653][ T5130] btrfs_insert_dir_item+0x184/0x3e8 [ 74.977423][ T5130] btrfs_add_link+0x2b0/0xa9c [ 74.978109][ T5130] btrfs_create+0x468/0x514 [ 74.978807][ T5130] path_openat+0xe18/0x2718 [ 74.979466][ T5130] do_filp_open+0x184/0x368 [ 74.980143][ T5130] do_sys_openat2+0x134/0x3f4 [ 74.980868][ T5130] __arm64_sys_openat+0x118/0x14c [ 74.981731][ T5130] invoke_syscall+0x98/0x2b0 [ 74.982504][ T5130] el0_svc_common+0x138/0x258 [ 74.983303][ T5130] do_el0_svc+0x58/0x13c [ 74.984031][ T5130] el0_svc+0x78/0x1d0 [ 74.984661][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 74.985411][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 74.989498][ T5130] ------------[ cut here ]------------ [ 74.990923][ T5130] WARNING: CPU: 1 PID: 5130 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 74.992336][ T5130] Modules linked in: [ 74.992974][ T5130] CPU: 1 PID: 5130 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 74.994353][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.995823][ T5130] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.996962][ T5130] pc : btrfs_add_link+0x718/0xa9c [ 74.997684][ T5130] lr : btrfs_add_link+0x718/0xa9c [ 74.998413][ T5130] sp : ffff800020427580 [ 74.999022][ T5130] x29: ffff800020427680 x28: ffff0000de7bcbb0 x27: 0000000000000108 [ 75.000215][ T5130] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 75.001398][ T5130] x23: 0000000000000014 x22: 1fffe0001bcf7981 x21: ffff700004084eb8 [ 75.002603][ T5130] x20: 00000000fffffff4 x19: ffff0000de7bcc08 x18: 0000000000000001 [ 75.003851][ T5130] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 75.005147][ T5130] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 75.006305][ T5130] x11: 0000000000000000 x10: 0000000000000000 x9 : afe80768a7284e00 [ 75.007523][ T5130] x8 : afe80768a7284e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.008729][ T5130] x5 : ffff800020426e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 75.009957][ T5130] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.011167][ T5130] Call trace: [ 75.011627][ T5130] btrfs_add_link+0x718/0xa9c [ 75.012452][ T5130] btrfs_create+0x468/0x514 [ 75.013078][ T5130] path_openat+0xe18/0x2718 [ 75.013794][ T5130] do_filp_open+0x184/0x368 [ 75.014501][ T5130] do_sys_openat2+0x134/0x3f4 [ 75.015316][ T5130] __arm64_sys_openat+0x118/0x14c [ 75.016065][ T5130] invoke_syscall+0x98/0x2b0 [ 75.016772][ T5130] el0_svc_common+0x138/0x258 [ 75.017495][ T5130] do_el0_svc+0x58/0x13c [ 75.018087][ T5130] el0_svc+0x78/0x1d0 [ 75.018778][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 75.019594][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 75.020386][ T5130] irq event stamp: 80662 [ 75.021057][ T5130] hardirqs last enabled at (80661): [] __up_console_sem+0xb4/0xfc [ 75.022481][ T5130] hardirqs last disabled at (80662): [] el1_dbg+0x24/0x80 [ 75.023779][ T5130] softirqs last enabled at (80650): [] handle_softirqs+0xa40/0xbe4 [ 75.025324][ T5130] softirqs last disabled at (80605): [] __irq_exit_rcu+0x240/0x43c [ 75.026773][ T5130] ---[ end trace b6d5b913444c0659 ]--- [ 75.028895][ T5130] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 75.176130][ T5152] loop0: detected capacity change from 0 to 32768 [ 75.191658][ T5152] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.23 (5152) [ 75.301585][ T5152] FAULT_INJECTION: forcing a failure. [ 75.301585][ T5152] name failslab, interval 1, probability 0, space 0, times 0 [ 75.303748][ T5152] CPU: 1 PID: 5152 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 75.305007][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.306389][ T5152] Call trace: [ 75.306842][ T5152] dump_backtrace+0x0/0x458 [ 75.307516][ T5152] show_stack+0x2c/0x3c [ 75.308146][ T5152] __dump_stack+0x30/0x40 [ 75.308796][ T5152] dump_stack_lvl+0xf4/0x15c [ 75.309433][ T5152] dump_stack+0x1c/0x5c [ 75.310027][ T5152] should_fail+0x3bc/0x514 [ 75.310699][ T5152] __should_failslab+0xbc/0x10c [ 75.311413][ T5152] should_failslab+0x10/0x28 [ 75.312100][ T5152] slab_pre_alloc_hook+0x64/0xe8 [ 75.312837][ T5152] kmem_cache_alloc+0x94/0x3d4 [ 75.313539][ T5152] btrfs_alloc_path+0x5c/0x68 [ 75.314246][ T5152] btrfs_insert_dir_item+0x184/0x3e8 [ 75.314989][ T5152] btrfs_add_link+0x2b0/0xa9c [ 75.315756][ T5152] btrfs_create+0x468/0x514 [ 75.316457][ T5152] path_openat+0xe18/0x2718 [ 75.317147][ T5152] do_filp_open+0x184/0x368 [ 75.317761][ T5152] do_sys_openat2+0x134/0x3f4 [ 75.318402][ T5152] __arm64_sys_openat+0x118/0x14c [ 75.319212][ T5152] invoke_syscall+0x98/0x2b0 [ 75.319936][ T5152] el0_svc_common+0x138/0x258 [ 75.320707][ T5152] do_el0_svc+0x58/0x13c [ 75.321320][ T5152] el0_svc+0x78/0x1d0 [ 75.321891][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 75.322632][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 75.326531][ T5152] ------------[ cut here ]------------ [ 75.327749][ T5152] WARNING: CPU: 1 PID: 5152 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 75.329139][ T5152] Modules linked in: [ 75.329725][ T5152] CPU: 1 PID: 5152 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 75.330897][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.332145][ T5152] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.333046][ T5152] pc : btrfs_add_link+0x718/0xa9c [ 75.333671][ T5152] lr : btrfs_add_link+0x718/0xa9c [ 75.334457][ T5152] sp : ffff800020427580 [ 75.335102][ T5152] x29: ffff800020427680 x28: ffff0000de7bce70 x27: 0000000000000108 [ 75.336279][ T5152] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 75.337393][ T5152] x23: 0000000000000014 x22: 1fffe0001bcf79d9 x21: ffff700004084eb8 [ 75.338516][ T5152] x20: 00000000fffffff4 x19: ffff0000de7bcec8 x18: 0000000000000001 [ 75.339668][ T5152] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 75.340856][ T5152] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 75.342037][ T5152] x11: 0000000000000000 x10: 0000000000000000 x9 : 118e515652d10b00 [ 75.343176][ T5152] x8 : 118e515652d10b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.344297][ T5152] x5 : ffff800020426e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 75.345449][ T5152] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.346652][ T5152] Call trace: [ 75.347120][ T5152] btrfs_add_link+0x718/0xa9c [ 75.347837][ T5152] btrfs_create+0x468/0x514 [ 75.348460][ T5152] path_openat+0xe18/0x2718 [ 75.349120][ T5152] do_filp_open+0x184/0x368 [ 75.349738][ T5152] do_sys_openat2+0x134/0x3f4 [ 75.350414][ T5152] __arm64_sys_openat+0x118/0x14c [ 75.351155][ T5152] invoke_syscall+0x98/0x2b0 [ 75.351853][ T5152] el0_svc_common+0x138/0x258 [ 75.352520][ T5152] do_el0_svc+0x58/0x13c [ 75.353092][ T5152] el0_svc+0x78/0x1d0 [ 75.353632][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 75.354376][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 75.355043][ T5152] irq event stamp: 80928 [ 75.355662][ T5152] hardirqs last enabled at (80927): [] __up_console_sem+0xb4/0xfc [ 75.357116][ T5152] hardirqs last disabled at (80928): [] el1_dbg+0x24/0x80 [ 75.358352][ T5152] softirqs last enabled at (80904): [] handle_softirqs+0xa40/0xbe4 [ 75.359856][ T5152] softirqs last disabled at (80887): [] __irq_exit_rcu+0x240/0x43c [ 75.361157][ T5152] ---[ end trace b6d5b913444c065a ]--- [ 75.364823][ T5152] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 75.559669][ T5175] loop0: detected capacity change from 0 to 32768 [ 75.564163][ T5175] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.24 (5175) [ 75.580068][ T5175] FAULT_INJECTION: forcing a failure. [ 75.580068][ T5175] name failslab, interval 1, probability 0, space 0, times 0 [ 75.582202][ T5175] CPU: 0 PID: 5175 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 75.583471][ T5175] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.584960][ T5175] Call trace: [ 75.585377][ T5175] dump_backtrace+0x0/0x458 [ 75.586021][ T5175] show_stack+0x2c/0x3c [ 75.586655][ T5175] __dump_stack+0x30/0x40 [ 75.587329][ T5175] dump_stack_lvl+0xf4/0x15c [ 75.587906][ T5175] dump_stack+0x1c/0x5c [ 75.588494][ T5175] should_fail+0x3bc/0x514 [ 75.589133][ T5175] __should_failslab+0xbc/0x10c [ 75.589862][ T5175] should_failslab+0x10/0x28 [ 75.590485][ T5175] slab_pre_alloc_hook+0x64/0xe8 [ 75.591167][ T5175] kmem_cache_alloc+0x94/0x3d4 [ 75.591816][ T5175] security_inode_alloc+0x38/0x11c [ 75.592527][ T5175] inode_init_always+0x670/0xa84 [ 75.593246][ T5175] new_inode_pseudo+0x7c/0x1fc [ 75.593904][ T5175] new_inode+0x38/0x174 [ 75.594581][ T5175] btrfs_new_inode+0x158/0x1564 [ 75.595303][ T5175] btrfs_create+0x24c/0x514 [ 75.595965][ T5175] path_openat+0xe18/0x2718 [ 75.596692][ T5175] do_filp_open+0x184/0x368 [ 75.597371][ T5175] do_sys_openat2+0x134/0x3f4 [ 75.598071][ T5175] __arm64_sys_openat+0x118/0x14c [ 75.598762][ T5175] invoke_syscall+0x98/0x2b0 [ 75.599411][ T5175] el0_svc_common+0x138/0x258 [ 75.600134][ T5175] do_el0_svc+0x58/0x13c [ 75.600759][ T5175] el0_svc+0x78/0x1d0 [ 75.601342][ T5175] el0t_64_sync_handler+0xcc/0xe4 [ 75.602231][ T5175] el0t_64_sync+0x1a0/0x1a4 [ 75.657644][ T4943] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 12 /dev/loop0 scanned by udevd (4943) [ 75.759086][ T5196] FAULT_INJECTION: forcing a failure. [ 75.759086][ T5196] name fail_usercopy, interval 1, probability 0, space 0, times 1 [ 75.762037][ T5196] CPU: 0 PID: 5196 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 75.763350][ T5196] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.764926][ T5196] Call trace: [ 75.765391][ T5196] dump_backtrace+0x0/0x458 [ 75.766067][ T5196] show_stack+0x2c/0x3c [ 75.766691][ T5196] __dump_stack+0x30/0x40 [ 75.767291][ T5196] dump_stack_lvl+0xf4/0x15c [ 75.768030][ T5196] dump_stack+0x1c/0x5c [ 75.768684][ T5196] should_fail+0x3bc/0x514 [ 75.769337][ T5196] should_fail_usercopy+0x20/0x30 [ 75.770088][ T5196] simple_read_from_buffer+0xd0/0x264 [ 75.770912][ T5196] proc_fail_nth_read+0x1a4/0x24c [ 75.771671][ T5196] vfs_read+0x27c/0xa44 [ 75.772429][ T5196] ksys_read+0x12c/0x224 [ 75.773215][ T5196] __arm64_sys_read+0x7c/0x90 [ 75.773988][ T5196] invoke_syscall+0x98/0x2b0 [ 75.774698][ T5196] el0_svc_common+0x138/0x258 [ 75.775453][ T5196] do_el0_svc+0x58/0x13c [ 75.776080][ T5196] el0_svc+0x78/0x1d0 [ 75.776663][ T5196] el0t_64_sync_handler+0xcc/0xe4 [ 75.777457][ T5196] el0t_64_sync+0x1a0/0x1a4 [ 76.024753][ T5199] FAULT_INJECTION: forcing a failure. [ 76.024753][ T5199] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 76.026946][ T5199] CPU: 1 PID: 5199 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 76.028238][ T5199] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.029711][ T5199] Call trace: [ 76.030210][ T5199] dump_backtrace+0x0/0x458 [ 76.030906][ T5199] show_stack+0x2c/0x3c [ 76.031506][ T5199] __dump_stack+0x30/0x40 [ 76.032101][ T5199] dump_stack_lvl+0xf4/0x15c [ 76.032771][ T5199] dump_stack+0x1c/0x5c [ 76.033410][ T5199] should_fail+0x3bc/0x514 [ 76.034024][ T5199] should_fail_alloc_page+0x74/0xa8 [ 76.034796][ T5199] prepare_alloc_pages+0x160/0x45c [ 76.035552][ T5199] __alloc_pages+0x108/0x470 [ 76.036200][ T5199] alloc_pages+0x34c/0x5c0 [ 76.036848][ T5199] new_slab+0xe0/0x544 [ 76.037389][ T5199] ___slab_alloc+0x6b4/0xd8c [ 76.037993][ T5199] __slab_alloc+0x68/0xc0 [ 76.038562][ T5199] kmem_cache_alloc+0x2a4/0x3d4 [ 76.039276][ T5199] btrfs_get_or_create_delayed_node+0x114/0x4a8 [ 76.040169][ T5199] btrfs_delayed_update_inode+0x3c/0x1b68 [ 76.041026][ T5199] btrfs_update_inode+0x210/0x3d4 [ 76.041757][ T5199] btrfs_create+0x364/0x514 [ 76.042378][ T5199] path_openat+0xe18/0x2718 [ 76.043000][ T5199] do_filp_open+0x184/0x368 [ 76.043713][ T5199] do_sys_openat2+0x134/0x3f4 [ 76.044383][ T5199] __arm64_sys_openat+0x118/0x14c [ 76.045299][ T5199] invoke_syscall+0x98/0x2b0 [ 76.046038][ T5199] el0_svc_common+0x138/0x258 [ 76.046776][ T5199] do_el0_svc+0x58/0x13c [ 76.047427][ T5199] el0_svc+0x78/0x1d0 [ 76.048034][ T5199] el0t_64_sync_handler+0xcc/0xe4 [ 76.048745][ T5199] el0t_64_sync+0x1a0/0x1a4 [ 76.200847][ T5221] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.27 (5221) [ 76.216571][ T5221] FAULT_INJECTION: forcing a failure. [ 76.216571][ T5221] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 76.218538][ T5221] CPU: 0 PID: 5221 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 76.219657][ T5221] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.221037][ T5221] Call trace: [ 76.221560][ T5221] dump_backtrace+0x0/0x458 [ 76.222226][ T5221] show_stack+0x2c/0x3c [ 76.222833][ T5221] __dump_stack+0x30/0x40 [ 76.223480][ T5221] dump_stack_lvl+0xf4/0x15c [ 76.224133][ T5221] dump_stack+0x1c/0x5c [ 76.224716][ T5221] should_fail+0x3bc/0x514 [ 76.225327][ T5221] should_fail_alloc_page+0x74/0xa8 [ 76.226083][ T5221] prepare_alloc_pages+0x160/0x45c [ 76.226846][ T5221] __alloc_pages+0x108/0x470 [ 76.227485][ T5221] alloc_pages+0x34c/0x5c0 [ 76.228146][ T5221] new_slab+0xe0/0x544 [ 76.228734][ T5221] ___slab_alloc+0x6b4/0xd8c [ 76.229427][ T5221] __slab_alloc+0x68/0xc0 [ 76.236172][ T5221] kmem_cache_alloc+0x2a4/0x3d4 [ 76.236854][ T5221] btrfs_get_or_create_delayed_node+0x114/0x4a8 [ 76.237772][ T5221] btrfs_delayed_update_inode+0x3c/0x1b68 [ 76.238549][ T5221] btrfs_update_inode+0x210/0x3d4 [ 76.239746][ T5221] btrfs_create+0x364/0x514 [ 76.240409][ T5221] path_openat+0xe18/0x2718 [ 76.241116][ T5221] do_filp_open+0x184/0x368 [ 76.241812][ T5221] do_sys_openat2+0x134/0x3f4 [ 76.242513][ T5221] __arm64_sys_openat+0x118/0x14c [ 76.243213][ T5221] invoke_syscall+0x98/0x2b0 [ 76.243921][ T5221] el0_svc_common+0x138/0x258 [ 76.244612][ T5221] do_el0_svc+0x58/0x13c [ 76.245281][ T5221] el0_svc+0x78/0x1d0 [ 76.245854][ T5221] el0t_64_sync_handler+0xcc/0xe4 [ 76.246593][ T5221] el0t_64_sync+0x1a0/0x1a4 [ 76.302662][ T4943] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 12 /dev/loop0 scanned by udevd (4943) [ 76.485031][ T5242] FAULT_INJECTION: forcing a failure. [ 76.485031][ T5242] name failslab, interval 1, probability 0, space 0, times 0 [ 76.487143][ T5242] CPU: 0 PID: 5242 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 76.488345][ T5242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.489802][ T5242] Call trace: [ 76.490264][ T5242] dump_backtrace+0x0/0x458 [ 76.490975][ T5242] show_stack+0x2c/0x3c [ 76.491542][ T5242] __dump_stack+0x30/0x40 [ 76.492206][ T5242] dump_stack_lvl+0xf4/0x15c [ 76.492874][ T5242] dump_stack+0x1c/0x5c [ 76.493592][ T5242] should_fail+0x3bc/0x514 [ 76.494340][ T5242] __should_failslab+0xbc/0x10c [ 76.495144][ T5242] should_failslab+0x10/0x28 [ 76.495862][ T5242] slab_pre_alloc_hook+0x64/0xe8 [ 76.496621][ T5242] kmem_cache_alloc+0x94/0x3d4 [ 76.497287][ T5242] btrfs_alloc_path+0x5c/0x68 [ 76.497990][ T5242] btrfs_insert_dir_item+0x184/0x3e8 [ 76.498867][ T5242] btrfs_add_link+0x2b0/0xa9c [ 76.499544][ T5242] btrfs_create+0x468/0x514 [ 76.500169][ T5242] path_openat+0xe18/0x2718 [ 76.500781][ T5242] do_filp_open+0x184/0x368 [ 76.501423][ T5242] do_sys_openat2+0x134/0x3f4 [ 76.502126][ T5242] __arm64_sys_openat+0x118/0x14c [ 76.502907][ T5242] invoke_syscall+0x98/0x2b0 [ 76.503594][ T5242] el0_svc_common+0x138/0x258 [ 76.504269][ T5242] do_el0_svc+0x58/0x13c [ 76.504912][ T5242] el0_svc+0x78/0x1d0 [ 76.505538][ T5242] el0t_64_sync_handler+0xcc/0xe4 [ 76.506205][ T5242] el0t_64_sync+0x1a0/0x1a4 [ 76.507080][ T5242] ------------[ cut here ]------------ [ 76.507995][ T5242] WARNING: CPU: 0 PID: 5242 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 76.509249][ T5242] Modules linked in: [ 76.509776][ T5242] CPU: 0 PID: 5242 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 76.511067][ T5242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.512477][ T5242] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.513653][ T5242] pc : btrfs_add_link+0x718/0xa9c [ 76.514376][ T5242] lr : btrfs_add_link+0x718/0xa9c [ 76.515080][ T5242] sp : ffff800021107580 [ 76.515674][ T5242] x29: ffff800021107680 x28: ffff0000cf97a580 x27: 0000000000000108 [ 76.516839][ T5242] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 76.517978][ T5242] x23: 0000000000000014 x22: 1fffe00019f2f4bb x21: ffff700004220eb8 [ 76.519084][ T5242] x20: 00000000fffffff4 x19: ffff0000cf97a5d8 x18: 0000000000000001 [ 76.520278][ T5242] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 76.521364][ T5242] x14: 0000000000000001 x13: 1ffff00004220dd0 x12: 0000000000ff0100 [ 76.522496][ T5242] x11: 0000000000000000 x10: 0000000000000000 x9 : 74cf9bc1a2c65800 [ 76.523679][ T5242] x8 : 74cf9bc1a2c65800 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.524839][ T5242] x5 : ffff800021106e98 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 76.526024][ T5242] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.527252][ T5242] Call trace: [ 76.527700][ T5242] btrfs_add_link+0x718/0xa9c [ 76.528336][ T5242] btrfs_create+0x468/0x514 [ 76.529017][ T5242] path_openat+0xe18/0x2718 [ 76.529639][ T5242] do_filp_open+0x184/0x368 [ 76.530338][ T5242] do_sys_openat2+0x134/0x3f4 [ 76.531024][ T5242] __arm64_sys_openat+0x118/0x14c [ 76.531716][ T5242] invoke_syscall+0x98/0x2b0 [ 76.532395][ T5242] el0_svc_common+0x138/0x258 [ 76.533073][ T5242] do_el0_svc+0x58/0x13c [ 76.533699][ T5242] el0_svc+0x78/0x1d0 [ 76.534280][ T5242] el0t_64_sync_handler+0xcc/0xe4 [ 76.534979][ T5242] el0t_64_sync+0x1a0/0x1a4 [ 76.535616][ T5242] irq event stamp: 79672 [ 76.536177][ T5242] hardirqs last enabled at (79671): [] __up_console_sem+0xb4/0xfc [ 76.537603][ T5242] hardirqs last disabled at (79672): [] el1_dbg+0x24/0x80 [ 76.538869][ T5242] softirqs last enabled at (79652): [] handle_softirqs+0xa40/0xbe4 [ 76.540204][ T5242] softirqs last disabled at (79615): [] __irq_exit_rcu+0x240/0x43c [ 76.541591][ T5242] ---[ end trace b6d5b913444c065b ]--- [ 76.543940][ T5242] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 76.721255][ T5265] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.29 (5265) [ 76.751210][ T5265] FAULT_INJECTION: forcing a failure. [ 76.751210][ T5265] name failslab, interval 1, probability 0, space 0, times 0 [ 76.753150][ T5265] CPU: 1 PID: 5265 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 76.754427][ T5265] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.755754][ T5265] Call trace: [ 76.756238][ T5265] dump_backtrace+0x0/0x458 [ 76.756986][ T5265] show_stack+0x2c/0x3c [ 76.757632][ T5265] __dump_stack+0x30/0x40 [ 76.758288][ T5265] dump_stack_lvl+0xf4/0x15c [ 76.758930][ T5265] dump_stack+0x1c/0x5c [ 76.759507][ T5265] should_fail+0x3bc/0x514 [ 76.760228][ T5265] __should_failslab+0xbc/0x10c [ 76.760945][ T5265] should_failslab+0x10/0x28 [ 76.761652][ T5265] slab_pre_alloc_hook+0x64/0xe8 [ 76.762310][ T5265] kmem_cache_alloc+0x94/0x3d4 [ 76.762963][ T5265] btrfs_alloc_path+0x5c/0x68 [ 76.763666][ T5265] btrfs_insert_dir_item+0x184/0x3e8 [ 76.764368][ T5265] btrfs_add_link+0x2b0/0xa9c [ 76.765047][ T5265] btrfs_create+0x468/0x514 [ 76.765709][ T5265] path_openat+0xe18/0x2718 [ 76.766351][ T5265] do_filp_open+0x184/0x368 [ 76.767026][ T5265] do_sys_openat2+0x134/0x3f4 [ 76.767671][ T5265] __arm64_sys_openat+0x118/0x14c [ 76.768387][ T5265] invoke_syscall+0x98/0x2b0 [ 76.769112][ T5265] el0_svc_common+0x138/0x258 [ 76.769772][ T5265] do_el0_svc+0x58/0x13c [ 76.770348][ T5265] el0_svc+0x78/0x1d0 [ 76.770981][ T5265] el0t_64_sync_handler+0xcc/0xe4 [ 76.771718][ T5265] el0t_64_sync+0x1a0/0x1a4 [ 76.773624][ T5265] ------------[ cut here ]------------ [ 76.774514][ T5265] WARNING: CPU: 1 PID: 5265 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 76.775785][ T5265] Modules linked in: [ 76.776321][ T5265] CPU: 1 PID: 5265 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 76.777493][ T5265] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.778804][ T5265] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.779962][ T5265] pc : btrfs_add_link+0x718/0xa9c [ 76.780680][ T5265] lr : btrfs_add_link+0x718/0xa9c [ 76.781383][ T5265] sp : ffff8000210f7580 [ 76.781995][ T5265] x29: ffff8000210f7680 x28: ffff0000de67a6e0 x27: 0000000000000108 [ 76.783089][ T5265] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 76.784222][ T5265] x23: 0000000000000014 x22: 1fffe0001bccf4e7 x21: ffff70000421eeb8 [ 76.785360][ T5265] x20: 00000000fffffff4 x19: ffff0000de67a738 x18: 0000000000000001 [ 76.786533][ T5265] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 76.787636][ T5265] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 76.788940][ T5265] x11: 0000000000000000 x10: 0000000000000000 x9 : 6a7161b9c9cc3b00 [ 76.790084][ T5265] x8 : 6a7161b9c9cc3b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.791221][ T5265] x5 : ffff8000210f6e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 76.792343][ T5265] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.793482][ T5265] Call trace: [ 76.793956][ T5265] btrfs_add_link+0x718/0xa9c [ 76.794627][ T5265] btrfs_create+0x468/0x514 [ 76.795283][ T5265] path_openat+0xe18/0x2718 [ 76.795889][ T5265] do_filp_open+0x184/0x368 [ 76.796548][ T5265] do_sys_openat2+0x134/0x3f4 [ 76.797195][ T5265] __arm64_sys_openat+0x118/0x14c [ 76.797936][ T5265] invoke_syscall+0x98/0x2b0 [ 76.798567][ T5265] el0_svc_common+0x138/0x258 [ 76.799206][ T5265] do_el0_svc+0x58/0x13c [ 76.799794][ T5265] el0_svc+0x78/0x1d0 [ 76.800382][ T5265] el0t_64_sync_handler+0xcc/0xe4 [ 76.801077][ T5265] el0t_64_sync+0x1a0/0x1a4 [ 76.801722][ T5265] irq event stamp: 79510 [ 76.802282][ T5265] hardirqs last enabled at (79509): [] __up_console_sem+0xb4/0xfc [ 76.803696][ T5265] hardirqs last disabled at (79510): [] el1_dbg+0x24/0x80 [ 76.804893][ T5265] softirqs last enabled at (79490): [] handle_softirqs+0xa40/0xbe4 [ 76.806210][ T5265] softirqs last disabled at (79445): [] __irq_exit_rcu+0x240/0x43c [ 76.807559][ T5265] ---[ end trace b6d5b913444c065c ]--- [ 76.810245][ T5265] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 76.952821][ T5287] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.30 (5287) [ 76.968766][ T5287] FAULT_INJECTION: forcing a failure. [ 76.968766][ T5287] name failslab, interval 1, probability 0, space 0, times 0 [ 76.970790][ T5287] CPU: 1 PID: 5287 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 76.971920][ T5287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.973290][ T5287] Call trace: [ 76.973752][ T5287] dump_backtrace+0x0/0x458 [ 76.974408][ T5287] show_stack+0x2c/0x3c [ 76.975012][ T5287] __dump_stack+0x30/0x40 [ 76.975667][ T5287] dump_stack_lvl+0xf4/0x15c [ 76.976376][ T5287] dump_stack+0x1c/0x5c [ 76.976988][ T5287] should_fail+0x3bc/0x514 [ 76.977621][ T5287] __should_failslab+0xbc/0x10c [ 76.978332][ T5287] should_failslab+0x10/0x28 [ 76.979053][ T5287] slab_pre_alloc_hook+0x64/0xe8 [ 76.979808][ T5287] kmem_cache_alloc+0x94/0x3d4 [ 76.980477][ T5287] btrfs_get_or_create_delayed_node+0x114/0x4a8 [ 76.981361][ T5287] btrfs_delayed_update_inode+0x3c/0x1b68 [ 76.982181][ T5287] btrfs_update_inode+0x210/0x3d4 [ 76.982946][ T5287] btrfs_create+0x364/0x514 [ 76.983565][ T5287] path_openat+0xe18/0x2718 [ 76.984221][ T5287] do_filp_open+0x184/0x368 [ 76.984887][ T5287] do_sys_openat2+0x134/0x3f4 [ 76.985558][ T5287] __arm64_sys_openat+0x118/0x14c [ 76.986304][ T5287] invoke_syscall+0x98/0x2b0 [ 76.987009][ T5287] el0_svc_common+0x138/0x258 [ 76.987633][ T5287] do_el0_svc+0x58/0x13c [ 76.988221][ T5287] el0_svc+0x78/0x1d0 [ 76.988777][ T5287] el0t_64_sync_handler+0xcc/0xe4 [ 76.989532][ T5287] el0t_64_sync+0x1a0/0x1a4 [ 77.048442][ T4943] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 12 /dev/loop0 scanned by udevd (4943) [ 77.283959][ T5308] FAULT_INJECTION: forcing a failure. [ 77.283959][ T5308] name failslab, interval 1, probability 0, space 0, times 0 [ 77.286102][ T5308] CPU: 1 PID: 5308 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 77.287316][ T5308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.288738][ T5308] Call trace: [ 77.289206][ T5308] dump_backtrace+0x0/0x458 [ 77.289853][ T5308] show_stack+0x2c/0x3c [ 77.290519][ T5308] __dump_stack+0x30/0x40 [ 77.291215][ T5308] dump_stack_lvl+0xf4/0x15c [ 77.291991][ T5308] dump_stack+0x1c/0x5c [ 77.292623][ T5308] should_fail+0x3bc/0x514 [ 77.293307][ T5308] __should_failslab+0xbc/0x10c [ 77.293979][ T5308] should_failslab+0x10/0x28 [ 77.294656][ T5308] slab_pre_alloc_hook+0x64/0xe8 [ 77.295387][ T5308] kmem_cache_alloc+0x94/0x3d4 [ 77.296085][ T5308] btrfs_alloc_path+0x5c/0x68 [ 77.296758][ T5308] btrfs_insert_dir_item+0x184/0x3e8 [ 77.297472][ T5308] btrfs_add_link+0x2b0/0xa9c [ 77.298185][ T5308] btrfs_create+0x468/0x514 [ 77.298919][ T5308] path_openat+0xe18/0x2718 [ 77.299573][ T5308] do_filp_open+0x184/0x368 [ 77.300218][ T5308] do_sys_openat2+0x134/0x3f4 [ 77.300845][ T5308] __arm64_sys_openat+0x118/0x14c [ 77.301557][ T5308] invoke_syscall+0x98/0x2b0 [ 77.302255][ T5308] el0_svc_common+0x138/0x258 [ 77.302934][ T5308] do_el0_svc+0x58/0x13c [ 77.303528][ T5308] el0_svc+0x78/0x1d0 [ 77.304089][ T5308] el0t_64_sync_handler+0xcc/0xe4 [ 77.304819][ T5308] el0t_64_sync+0x1a0/0x1a4 [ 77.307566][ T5308] ------------[ cut here ]------------ [ 77.308431][ T5308] WARNING: CPU: 1 PID: 5308 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 77.309641][ T5308] Modules linked in: [ 77.310188][ T5308] CPU: 1 PID: 5308 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 77.311407][ T5308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.312839][ T5308] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.313980][ T5308] pc : btrfs_add_link+0x718/0xa9c [ 77.314719][ T5308] lr : btrfs_add_link+0x718/0xa9c [ 77.315462][ T5308] sp : ffff800021417580 [ 77.316042][ T5308] x29: ffff800021417680 x28: ffff0000de67adc0 x27: 0000000000000108 [ 77.317286][ T5308] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 77.318453][ T5308] x23: 0000000000000014 x22: 1fffe0001bccf5c3 x21: ffff700004282eb8 [ 77.319569][ T5308] x20: 00000000fffffff4 x19: ffff0000de67ae18 x18: 0000000000000001 [ 77.320658][ T5308] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 77.321848][ T5308] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 77.323064][ T5308] x11: 0000000000000000 x10: 0000000000000000 x9 : 49cf81df6d60b400 [ 77.324213][ T5308] x8 : 49cf81df6d60b400 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.325423][ T5308] x5 : ffff800021416e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 77.326600][ T5308] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.327706][ T5308] Call trace: [ 77.328156][ T5308] btrfs_add_link+0x718/0xa9c [ 77.328838][ T5308] btrfs_create+0x468/0x514 [ 77.329458][ T5308] path_openat+0xe18/0x2718 [ 77.330039][ T5308] do_filp_open+0x184/0x368 [ 77.330687][ T5308] do_sys_openat2+0x134/0x3f4 [ 77.331333][ T5308] __arm64_sys_openat+0x118/0x14c [ 77.332045][ T5308] invoke_syscall+0x98/0x2b0 [ 77.332712][ T5308] el0_svc_common+0x138/0x258 [ 77.333397][ T5308] do_el0_svc+0x58/0x13c [ 77.333982][ T5308] el0_svc+0x78/0x1d0 [ 77.334518][ T5308] el0t_64_sync_handler+0xcc/0xe4 [ 77.335207][ T5308] el0t_64_sync+0x1a0/0x1a4 [ 77.335821][ T5308] irq event stamp: 79578 [ 77.336420][ T5308] hardirqs last enabled at (79577): [] __up_console_sem+0xb4/0xfc [ 77.337653][ T5308] hardirqs last disabled at (79578): [] el1_dbg+0x24/0x80 [ 77.338795][ T5308] softirqs last enabled at (79558): [] handle_softirqs+0xa40/0xbe4 [ 77.340104][ T5308] softirqs last disabled at (79541): [] __irq_exit_rcu+0x240/0x43c [ 77.341348][ T5308] ---[ end trace b6d5b913444c065d ]--- [ 77.344537][ T5308] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 77.510873][ T5331] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.32 (5331) [ 77.565581][ T5331] FAULT_INJECTION: forcing a failure. [ 77.565581][ T5331] name failslab, interval 1, probability 0, space 0, times 0 [ 77.567593][ T5331] CPU: 0 PID: 5331 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 77.568779][ T5331] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.570313][ T5331] Call trace: [ 77.570814][ T5331] dump_backtrace+0x0/0x458 [ 77.571485][ T5331] show_stack+0x2c/0x3c [ 77.572074][ T5331] __dump_stack+0x30/0x40 [ 77.572631][ T5331] dump_stack_lvl+0xf4/0x15c [ 77.573284][ T5331] dump_stack+0x1c/0x5c [ 77.573887][ T5331] should_fail+0x3bc/0x514 [ 77.574590][ T5331] __should_failslab+0xbc/0x10c [ 77.575310][ T5331] should_failslab+0x10/0x28 [ 77.575998][ T5331] slab_pre_alloc_hook+0x64/0xe8 [ 77.576707][ T5331] kmem_cache_alloc+0x94/0x3d4 [ 77.577396][ T5331] btrfs_alloc_path+0x5c/0x68 [ 77.578053][ T5331] btrfs_insert_dir_item+0x184/0x3e8 [ 77.578879][ T5331] btrfs_add_link+0x2b0/0xa9c [ 77.579580][ T5331] btrfs_create+0x468/0x514 [ 77.580160][ T5331] path_openat+0xe18/0x2718 [ 77.580819][ T5331] do_filp_open+0x184/0x368 [ 77.581461][ T5331] do_sys_openat2+0x134/0x3f4 [ 77.582138][ T5331] __arm64_sys_openat+0x118/0x14c [ 77.582849][ T5331] invoke_syscall+0x98/0x2b0 [ 77.583512][ T5331] el0_svc_common+0x138/0x258 [ 77.584170][ T5331] do_el0_svc+0x58/0x13c [ 77.584763][ T5331] el0_svc+0x78/0x1d0 [ 77.585405][ T5331] el0t_64_sync_handler+0xcc/0xe4 [ 77.586218][ T5331] el0t_64_sync+0x1a0/0x1a4 [ 77.587858][ T5331] ------------[ cut here ]------------ [ 77.588769][ T5331] WARNING: CPU: 0 PID: 5331 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 77.590165][ T5331] Modules linked in: [ 77.590763][ T5331] CPU: 0 PID: 5331 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 77.591913][ T5331] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.593383][ T5331] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.594496][ T5331] pc : btrfs_add_link+0x718/0xa9c [ 77.595178][ T5331] lr : btrfs_add_link+0x718/0xa9c [ 77.595917][ T5331] sp : ffff800021417580 [ 77.596562][ T5331] x29: ffff800021417680 x28: ffff0000cf97a9a0 x27: 0000000000000108 [ 77.597691][ T5331] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 77.598882][ T5331] x23: 0000000000000014 x22: 1fffe00019f2f53f x21: ffff700004282eb8 [ 77.600151][ T5331] x20: 00000000fffffff4 x19: ffff0000cf97a9f8 x18: 0000000000000001 [ 77.601275][ T5331] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 77.602508][ T5331] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 77.603706][ T5331] x11: 0000000000000000 x10: 0000000000000000 x9 : 683b282badb19b00 [ 77.604881][ T5331] x8 : 683b282badb19b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.606050][ T5331] x5 : ffff800021416e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 77.607218][ T5331] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.608321][ T5331] Call trace: [ 77.608792][ T5331] btrfs_add_link+0x718/0xa9c [ 77.609464][ T5331] btrfs_create+0x468/0x514 [ 77.610116][ T5331] path_openat+0xe18/0x2718 [ 77.610712][ T5331] do_filp_open+0x184/0x368 [ 77.611394][ T5331] do_sys_openat2+0x134/0x3f4 [ 77.612078][ T5331] __arm64_sys_openat+0x118/0x14c [ 77.612839][ T5331] invoke_syscall+0x98/0x2b0 [ 77.613595][ T5331] el0_svc_common+0x138/0x258 [ 77.614244][ T5331] do_el0_svc+0x58/0x13c [ 77.614844][ T5331] el0_svc+0x78/0x1d0 [ 77.615374][ T5331] el0t_64_sync_handler+0xcc/0xe4 [ 77.616081][ T5331] el0t_64_sync+0x1a0/0x1a4 [ 77.616745][ T5331] irq event stamp: 79624 [ 77.617345][ T5331] hardirqs last enabled at (79623): [] __up_console_sem+0xb4/0xfc [ 77.618734][ T5331] hardirqs last disabled at (79624): [] el1_dbg+0x24/0x80 [ 77.620070][ T5331] softirqs last enabled at (79600): [] handle_softirqs+0xa40/0xbe4 [ 77.621490][ T5331] softirqs last disabled at (79587): [] __irq_exit_rcu+0x240/0x43c [ 77.622965][ T5331] ---[ end trace b6d5b913444c065e ]--- [ 77.623942][ T5331] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 77.625208][ T5331] btrfs_printk: 166 callbacks suppressed [ 77.625219][ T5331] BTRFS info (device loop0): forced readonly [ 77.658868][ T4943] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 10 /dev/loop0 scanned by udevd (4943) 1970/01/01 00:01:17 executed programs: 20 [ 77.762358][ T5352] set_capacity_and_notify: 7 callbacks suppressed [ 77.762367][ T5352] loop0: detected capacity change from 0 to 32768 [ 77.803921][ T5352] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 77.805341][ T5352] BTRFS info (device loop0): setting nodatacow, compression disabled [ 77.806586][ T5352] BTRFS info (device loop0): setting datacow [ 77.807524][ T5352] BTRFS info (device loop0): doing ref verification [ 77.808479][ T5352] BTRFS info (device loop0): force clearing of disk cache [ 77.809487][ T5352] BTRFS info (device loop0): turning off barriers [ 77.810519][ T5352] BTRFS info (device loop0): use zlib compression, level 3 [ 77.811528][ T5352] BTRFS info (device loop0): using free space tree [ 77.812635][ T5352] BTRFS info (device loop0): has skinny extents [ 77.821109][ T5352] BTRFS info (device loop0): clearing free space tree [ 77.822252][ T5352] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 77.823681][ T5352] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 77.830484][ T5352] BTRFS info (device loop0): creating free space tree [ 77.831825][ T5352] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 77.833180][ T5352] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 77.842021][ T5352] FAULT_INJECTION: forcing a failure. [ 77.842021][ T5352] name failslab, interval 1, probability 0, space 0, times 0 [ 77.843999][ T5352] CPU: 1 PID: 5352 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 77.845343][ T5352] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.846850][ T5352] Call trace: [ 77.847361][ T5352] dump_backtrace+0x0/0x458 [ 77.847988][ T5352] show_stack+0x2c/0x3c [ 77.848624][ T5352] __dump_stack+0x30/0x40 [ 77.849249][ T5352] dump_stack_lvl+0xf4/0x15c [ 77.849893][ T5352] dump_stack+0x1c/0x5c [ 77.850502][ T5352] should_fail+0x3bc/0x514 [ 77.851162][ T5352] __should_failslab+0xbc/0x10c [ 77.851826][ T5352] should_failslab+0x10/0x28 [ 77.852512][ T5352] slab_pre_alloc_hook+0x64/0xe8 [ 77.853322][ T5352] kmem_cache_alloc+0x94/0x3d4 [ 77.854077][ T5352] btrfs_alloc_path+0x5c/0x68 [ 77.854820][ T5352] btrfs_insert_dir_item+0x184/0x3e8 [ 77.855674][ T5352] btrfs_add_link+0x2b0/0xa9c [ 77.856391][ T5352] btrfs_create+0x468/0x514 [ 77.857024][ T5352] path_openat+0xe18/0x2718 [ 77.857674][ T5352] do_filp_open+0x184/0x368 [ 77.858242][ T5352] do_sys_openat2+0x134/0x3f4 [ 77.858976][ T5352] __arm64_sys_openat+0x118/0x14c [ 77.859639][ T5352] invoke_syscall+0x98/0x2b0 [ 77.860282][ T5352] el0_svc_common+0x138/0x258 [ 77.860939][ T5352] do_el0_svc+0x58/0x13c [ 77.861519][ T5352] el0_svc+0x78/0x1d0 [ 77.862101][ T5352] el0t_64_sync_handler+0xcc/0xe4 [ 77.862964][ T5352] el0t_64_sync+0x1a0/0x1a4 [ 77.866501][ T5352] ------------[ cut here ]------------ [ 77.867377][ T5352] WARNING: CPU: 1 PID: 5352 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 77.868701][ T5352] Modules linked in: [ 77.869278][ T5352] CPU: 1 PID: 5352 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 77.870588][ T5352] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.871965][ T5352] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.873316][ T5352] pc : btrfs_add_link+0x718/0xa9c [ 77.874165][ T5352] lr : btrfs_add_link+0x718/0xa9c [ 77.874928][ T5352] sp : ffff800021667580 [ 77.875562][ T5352] x29: ffff800021667680 x28: ffff0000de6ca840 x27: 0000000000000108 [ 77.876686][ T5352] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 77.877849][ T5352] x23: 0000000000000014 x22: 1fffe0001bcd9513 x21: ffff7000042cceb8 [ 77.878971][ T5352] x20: 00000000fffffff4 x19: ffff0000de6ca898 x18: 0000000000000001 [ 77.880148][ T5352] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 77.881236][ T5352] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 77.882405][ T5352] x11: 0000000000000000 x10: 0000000000000000 x9 : 06c9c7a50db07100 [ 77.883476][ T5352] x8 : 06c9c7a50db07100 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.884654][ T5352] x5 : ffff800021666e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 77.885747][ T5352] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.886918][ T5352] Call trace: [ 77.887366][ T5352] btrfs_add_link+0x718/0xa9c [ 77.888003][ T5352] btrfs_create+0x468/0x514 [ 77.888600][ T5352] path_openat+0xe18/0x2718 [ 77.889264][ T5352] do_filp_open+0x184/0x368 [ 77.889932][ T5352] do_sys_openat2+0x134/0x3f4 [ 77.890611][ T5352] __arm64_sys_openat+0x118/0x14c [ 77.891254][ T5352] invoke_syscall+0x98/0x2b0 [ 77.891919][ T5352] el0_svc_common+0x138/0x258 [ 77.892553][ T5352] do_el0_svc+0x58/0x13c [ 77.893201][ T5352] el0_svc+0x78/0x1d0 [ 77.893764][ T5352] el0t_64_sync_handler+0xcc/0xe4 [ 77.894491][ T5352] el0t_64_sync+0x1a0/0x1a4 [ 77.895112][ T5352] irq event stamp: 79764 [ 77.895726][ T5352] hardirqs last enabled at (79763): [] __up_console_sem+0xb4/0xfc [ 77.897125][ T5352] hardirqs last disabled at (79764): [] el1_dbg+0x24/0x80 [ 77.898348][ T5352] softirqs last enabled at (79744): [] handle_softirqs+0xa40/0xbe4 [ 77.899768][ T5352] softirqs last disabled at (79685): [] __irq_exit_rcu+0x240/0x43c [ 77.901235][ T5352] ---[ end trace b6d5b913444c065f ]--- [ 77.904461][ T5352] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 77.905697][ T5352] BTRFS info (device loop0): forced readonly [ 78.089274][ T5375] loop0: detected capacity change from 0 to 32768 [ 78.133877][ T5375] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.34 (5375) [ 78.138383][ T5375] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 78.139740][ T5375] BTRFS info (device loop0): setting nodatacow, compression disabled [ 78.141469][ T5375] BTRFS info (device loop0): setting datacow [ 78.142407][ T5375] BTRFS info (device loop0): doing ref verification [ 78.143450][ T5375] BTRFS info (device loop0): force clearing of disk cache [ 78.144530][ T5375] BTRFS info (device loop0): turning off barriers [ 78.145513][ T5375] BTRFS info (device loop0): use zlib compression, level 3 [ 78.146739][ T5375] BTRFS info (device loop0): using free space tree [ 78.147788][ T5375] BTRFS info (device loop0): has skinny extents [ 78.157318][ T5375] BTRFS info (device loop0): clearing free space tree [ 78.158362][ T5375] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 78.159731][ T5375] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 78.163728][ T5375] BTRFS info (device loop0): creating free space tree [ 78.165118][ T5375] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 78.166726][ T5375] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 78.170744][ T5375] FAULT_INJECTION: forcing a failure. [ 78.170744][ T5375] name failslab, interval 1, probability 0, space 0, times 0 [ 78.172770][ T5375] CPU: 0 PID: 5375 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 78.174030][ T5375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.175484][ T5375] Call trace: [ 78.175988][ T5375] dump_backtrace+0x0/0x458 [ 78.176616][ T5375] show_stack+0x2c/0x3c [ 78.177215][ T5375] __dump_stack+0x30/0x40 [ 78.177805][ T5375] dump_stack_lvl+0xf4/0x15c [ 78.178456][ T5375] dump_stack+0x1c/0x5c [ 78.179056][ T5375] should_fail+0x3bc/0x514 [ 78.179645][ T5375] __should_failslab+0xbc/0x10c [ 78.180285][ T5375] should_failslab+0x10/0x28 [ 78.180884][ T5375] slab_pre_alloc_hook+0x64/0xe8 [ 78.181513][ T5375] kmem_cache_alloc+0x94/0x3d4 [ 78.182187][ T5375] btrfs_alloc_path+0x5c/0x68 [ 78.182883][ T5375] btrfs_insert_dir_item+0x184/0x3e8 [ 78.183579][ T5375] btrfs_add_link+0x2b0/0xa9c [ 78.184223][ T5375] btrfs_create+0x468/0x514 [ 78.184865][ T5375] path_openat+0xe18/0x2718 [ 78.185472][ T5375] do_filp_open+0x184/0x368 [ 78.186115][ T5375] do_sys_openat2+0x134/0x3f4 [ 78.186770][ T5375] __arm64_sys_openat+0x118/0x14c [ 78.187537][ T5375] invoke_syscall+0x98/0x2b0 [ 78.188177][ T5375] el0_svc_common+0x138/0x258 [ 78.188916][ T5375] do_el0_svc+0x58/0x13c [ 78.189531][ T5375] el0_svc+0x78/0x1d0 [ 78.190137][ T5375] el0t_64_sync_handler+0xcc/0xe4 [ 78.190961][ T5375] el0t_64_sync+0x1a0/0x1a4 [ 78.192392][ T5375] ------------[ cut here ]------------ [ 78.193351][ T5375] WARNING: CPU: 0 PID: 5375 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 78.194679][ T5375] Modules linked in: [ 78.195237][ T5375] CPU: 0 PID: 5375 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 78.196431][ T5375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.197858][ T5375] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.198952][ T5375] pc : btrfs_add_link+0x718/0xa9c [ 78.199676][ T5375] lr : btrfs_add_link+0x718/0xa9c [ 78.200353][ T5375] sp : ffff800021667580 [ 78.200971][ T5375] x29: ffff800021667680 x28: ffff0000cf97ac60 x27: 0000000000000108 [ 78.202037][ T5375] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 78.203224][ T5375] x23: 0000000000000014 x22: 1fffe00019f2f597 x21: ffff7000042cceb8 [ 78.204423][ T5375] x20: 00000000fffffff4 x19: ffff0000cf97acb8 x18: 0000000000000001 [ 78.205541][ T5375] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 78.206727][ T5375] x14: 0000000000000001 x13: 1ffff000042ccdd0 x12: 0000000000ff0100 [ 78.207889][ T5375] x11: 0000000000000000 x10: 0000000000000000 x9 : e177e30cb96eaf00 [ 78.209075][ T5375] x8 : e177e30cb96eaf00 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.210355][ T5375] x5 : ffff800021666e98 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 78.211563][ T5375] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.212795][ T5375] Call trace: [ 78.213248][ T5375] btrfs_add_link+0x718/0xa9c [ 78.213940][ T5375] btrfs_create+0x468/0x514 [ 78.214644][ T5375] path_openat+0xe18/0x2718 [ 78.215256][ T5375] do_filp_open+0x184/0x368 [ 78.215856][ T5375] do_sys_openat2+0x134/0x3f4 [ 78.216517][ T5375] __arm64_sys_openat+0x118/0x14c [ 78.217125][ T5375] invoke_syscall+0x98/0x2b0 [ 78.217767][ T5375] el0_svc_common+0x138/0x258 [ 78.218386][ T5375] do_el0_svc+0x58/0x13c [ 78.218965][ T5375] el0_svc+0x78/0x1d0 [ 78.219496][ T5375] el0t_64_sync_handler+0xcc/0xe4 [ 78.220191][ T5375] el0t_64_sync+0x1a0/0x1a4 [ 78.220966][ T5375] irq event stamp: 79938 [ 78.221580][ T5375] hardirqs last enabled at (79937): [] __up_console_sem+0xb4/0xfc [ 78.222928][ T5375] hardirqs last disabled at (79938): [] el1_dbg+0x24/0x80 [ 78.224224][ T5375] softirqs last enabled at (79918): [] handle_softirqs+0xa40/0xbe4 [ 78.225621][ T5375] softirqs last disabled at (79795): [] __irq_exit_rcu+0x240/0x43c [ 78.226971][ T5375] ---[ end trace b6d5b913444c0660 ]--- [ 78.228172][ T5375] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 78.229505][ T5375] BTRFS info (device loop0): forced readonly [ 78.411113][ T5397] loop0: detected capacity change from 0 to 32768 [ 78.452353][ T5397] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.35 (5397) [ 78.460630][ T5397] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 78.461886][ T5397] BTRFS info (device loop0): setting nodatacow, compression disabled [ 78.463068][ T5397] BTRFS info (device loop0): setting datacow [ 78.463981][ T5397] BTRFS info (device loop0): doing ref verification [ 78.464935][ T5397] BTRFS info (device loop0): force clearing of disk cache [ 78.465996][ T5397] BTRFS info (device loop0): turning off barriers [ 78.467024][ T5397] BTRFS info (device loop0): use zlib compression, level 3 [ 78.468049][ T5397] BTRFS info (device loop0): using free space tree [ 78.469158][ T5397] BTRFS info (device loop0): has skinny extents [ 78.481489][ T5397] BTRFS info (device loop0): clearing free space tree [ 78.482643][ T5397] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 78.484171][ T5397] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 78.487473][ T5397] BTRFS info (device loop0): creating free space tree [ 78.488764][ T5397] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 78.491379][ T5397] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 78.495414][ T5397] FAULT_INJECTION: forcing a failure. [ 78.495414][ T5397] name failslab, interval 1, probability 0, space 0, times 0 [ 78.497189][ T5397] CPU: 1 PID: 5397 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 78.498493][ T5397] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.499991][ T5397] Call trace: [ 78.500469][ T5397] dump_backtrace+0x0/0x458 [ 78.501152][ T5397] show_stack+0x2c/0x3c [ 78.501736][ T5397] __dump_stack+0x30/0x40 [ 78.502381][ T5397] dump_stack_lvl+0xf4/0x15c [ 78.503001][ T5397] dump_stack+0x1c/0x5c [ 78.503595][ T5397] should_fail+0x3bc/0x514 [ 78.504214][ T5397] __should_failslab+0xbc/0x10c [ 78.504880][ T5397] should_failslab+0x10/0x28 [ 78.505503][ T5397] slab_pre_alloc_hook+0x64/0xe8 [ 78.506146][ T5397] kmem_cache_alloc+0x94/0x3d4 [ 78.506812][ T5397] btrfs_alloc_path+0x5c/0x68 [ 78.507488][ T5397] btrfs_insert_dir_item+0x184/0x3e8 [ 78.508276][ T5397] btrfs_add_link+0x2b0/0xa9c [ 78.508967][ T5397] btrfs_create+0x468/0x514 [ 78.509577][ T5397] path_openat+0xe18/0x2718 [ 78.510196][ T5397] do_filp_open+0x184/0x368 [ 78.510841][ T5397] do_sys_openat2+0x134/0x3f4 [ 78.511491][ T5397] __arm64_sys_openat+0x118/0x14c [ 78.512222][ T5397] invoke_syscall+0x98/0x2b0 [ 78.512875][ T5397] el0_svc_common+0x138/0x258 [ 78.513579][ T5397] do_el0_svc+0x58/0x13c [ 78.514218][ T5397] el0_svc+0x78/0x1d0 [ 78.514811][ T5397] el0t_64_sync_handler+0xcc/0xe4 [ 78.515559][ T5397] el0t_64_sync+0x1a0/0x1a4 [ 78.522222][ T5397] ------------[ cut here ]------------ [ 78.523247][ T5397] WARNING: CPU: 1 PID: 5397 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 78.524576][ T5397] Modules linked in: [ 78.525178][ T5397] CPU: 1 PID: 5397 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 78.526487][ T5397] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.528026][ T5397] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.529258][ T5397] pc : btrfs_add_link+0x718/0xa9c [ 78.530075][ T5397] lr : btrfs_add_link+0x718/0xa9c [ 78.530901][ T5397] sp : ffff800021667580 [ 78.531484][ T5397] x29: ffff800021667680 x28: ffff0000de6ca790 x27: 0000000000000108 [ 78.532728][ T5397] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 78.533842][ T5397] x23: 0000000000000014 x22: 1fffe0001bcd94fd x21: ffff7000042cceb8 [ 78.534990][ T5397] x20: 00000000fffffff4 x19: ffff0000de6ca7e8 x18: 0000000000000001 [ 78.536196][ T5397] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 78.537341][ T5397] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 78.538590][ T5397] x11: 0000000000000000 x10: 0000000000000000 x9 : 87745276d799bf00 [ 78.539855][ T5397] x8 : 87745276d799bf00 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.541069][ T5397] x5 : ffff800021666e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 78.542151][ T5397] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.543373][ T5397] Call trace: [ 78.543934][ T5397] btrfs_add_link+0x718/0xa9c [ 78.544655][ T5397] btrfs_create+0x468/0x514 [ 78.545282][ T5397] path_openat+0xe18/0x2718 [ 78.545918][ T5397] do_filp_open+0x184/0x368 [ 78.546600][ T5397] do_sys_openat2+0x134/0x3f4 [ 78.547305][ T5397] __arm64_sys_openat+0x118/0x14c [ 78.548064][ T5397] invoke_syscall+0x98/0x2b0 [ 78.548738][ T5397] el0_svc_common+0x138/0x258 [ 78.549374][ T5397] do_el0_svc+0x58/0x13c [ 78.549962][ T5397] el0_svc+0x78/0x1d0 [ 78.550559][ T5397] el0t_64_sync_handler+0xcc/0xe4 [ 78.551294][ T5397] el0t_64_sync+0x1a0/0x1a4 [ 78.551921][ T5397] irq event stamp: 80574 [ 78.552536][ T5397] hardirqs last enabled at (80573): [] __up_console_sem+0xb4/0xfc [ 78.553935][ T5397] hardirqs last disabled at (80574): [] el1_dbg+0x24/0x80 [ 78.555158][ T5397] softirqs last enabled at (80550): [] handle_softirqs+0xa40/0xbe4 [ 78.556409][ T5397] softirqs last disabled at (80389): [] __irq_exit_rcu+0x240/0x43c [ 78.557732][ T5397] ---[ end trace b6d5b913444c0661 ]--- [ 78.559969][ T5397] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 78.561397][ T5397] BTRFS info (device loop0): forced readonly [ 78.739358][ T5419] loop0: detected capacity change from 0 to 32768 [ 78.791645][ T5419] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.36 (5419) [ 78.794608][ T5419] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 78.796266][ T5419] BTRFS info (device loop0): setting nodatacow, compression disabled [ 78.797577][ T5419] BTRFS info (device loop0): setting datacow [ 78.798603][ T5419] BTRFS info (device loop0): doing ref verification [ 78.799711][ T5419] BTRFS info (device loop0): force clearing of disk cache [ 78.800949][ T5419] BTRFS info (device loop0): turning off barriers [ 78.801906][ T5419] BTRFS info (device loop0): use zlib compression, level 3 [ 78.802866][ T5419] BTRFS info (device loop0): using free space tree [ 78.803817][ T5419] BTRFS info (device loop0): has skinny extents [ 78.812020][ T5419] BTRFS info (device loop0): clearing free space tree [ 78.813106][ T5419] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 78.814463][ T5419] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 78.818215][ T5419] BTRFS info (device loop0): creating free space tree [ 78.819609][ T5419] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 78.821209][ T5419] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 78.825151][ T5419] FAULT_INJECTION: forcing a failure. [ 78.825151][ T5419] name failslab, interval 1, probability 0, space 0, times 0 [ 78.827106][ T5419] CPU: 1 PID: 5419 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 78.828386][ T5419] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.829799][ T5419] Call trace: [ 78.830250][ T5419] dump_backtrace+0x0/0x458 [ 78.830895][ T5419] show_stack+0x2c/0x3c [ 78.831496][ T5419] __dump_stack+0x30/0x40 [ 78.832174][ T5419] dump_stack_lvl+0xf4/0x15c [ 78.832767][ T5419] dump_stack+0x1c/0x5c [ 78.833392][ T5419] should_fail+0x3bc/0x514 [ 78.834012][ T5419] __should_failslab+0xbc/0x10c [ 78.834764][ T5419] should_failslab+0x10/0x28 [ 78.835417][ T5419] slab_pre_alloc_hook+0x64/0xe8 [ 78.836120][ T5419] kmem_cache_alloc+0x94/0x3d4 [ 78.836883][ T5419] btrfs_alloc_path+0x5c/0x68 [ 78.837547][ T5419] btrfs_insert_dir_item+0x184/0x3e8 [ 78.838288][ T5419] btrfs_add_link+0x2b0/0xa9c [ 78.838960][ T5419] btrfs_create+0x468/0x514 [ 78.839591][ T5419] path_openat+0xe18/0x2718 [ 78.840283][ T5419] do_filp_open+0x184/0x368 [ 78.840965][ T5419] do_sys_openat2+0x134/0x3f4 [ 78.841719][ T5419] __arm64_sys_openat+0x118/0x14c [ 78.842434][ T5419] invoke_syscall+0x98/0x2b0 [ 78.843169][ T5419] el0_svc_common+0x138/0x258 [ 78.843902][ T5419] do_el0_svc+0x58/0x13c [ 78.844506][ T5419] el0_svc+0x78/0x1d0 [ 78.845110][ T5419] el0t_64_sync_handler+0xcc/0xe4 [ 78.845802][ T5419] el0t_64_sync+0x1a0/0x1a4 [ 78.846533][ T5419] ------------[ cut here ]------------ [ 78.847440][ T5419] WARNING: CPU: 1 PID: 5419 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 78.848745][ T5419] Modules linked in: [ 78.849353][ T5419] CPU: 1 PID: 5419 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 78.850624][ T5419] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.852033][ T5419] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.853143][ T5419] pc : btrfs_add_link+0x718/0xa9c [ 78.853863][ T5419] lr : btrfs_add_link+0x718/0xa9c [ 78.854636][ T5419] sp : ffff8000217c7580 [ 78.855245][ T5419] x29: ffff8000217c7680 x28: ffff0000de6ca4d0 x27: 0000000000000108 [ 78.856453][ T5419] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 78.857610][ T5419] x23: 0000000000000014 x22: 1fffe0001bcd94a5 x21: ffff7000042f8eb8 [ 78.858827][ T5419] x20: 00000000fffffff4 x19: ffff0000de6ca528 x18: 0000000000000001 [ 78.860030][ T5419] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 78.861262][ T5419] x14: 0000000000000001 x13: 1ffff000042f8dd0 x12: 0000000000ff0100 [ 78.862456][ T5419] x11: 0000000000000000 x10: 0000000000000000 x9 : 9e970954d018e000 [ 78.863613][ T5419] x8 : 9e970954d018e000 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.864768][ T5419] x5 : ffff8000217c6e98 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 78.865852][ T5419] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.866989][ T5419] Call trace: [ 78.867476][ T5419] btrfs_add_link+0x718/0xa9c [ 78.868202][ T5419] btrfs_create+0x468/0x514 [ 78.868844][ T5419] path_openat+0xe18/0x2718 [ 78.869661][ T5419] do_filp_open+0x184/0x368 [ 78.870396][ T5419] do_sys_openat2+0x134/0x3f4 [ 78.871171][ T5419] __arm64_sys_openat+0x118/0x14c [ 78.871891][ T5419] invoke_syscall+0x98/0x2b0 [ 78.872514][ T5419] el0_svc_common+0x138/0x258 [ 78.873204][ T5419] do_el0_svc+0x58/0x13c [ 78.873876][ T5419] el0_svc+0x78/0x1d0 [ 78.874468][ T5419] el0t_64_sync_handler+0xcc/0xe4 [ 78.875173][ T5419] el0t_64_sync+0x1a0/0x1a4 [ 78.875832][ T5419] irq event stamp: 80116 [ 78.876401][ T5419] hardirqs last enabled at (80115): [] __up_console_sem+0xb4/0xfc [ 78.877756][ T5419] hardirqs last disabled at (80116): [] el1_dbg+0x24/0x80 [ 78.879027][ T5419] softirqs last enabled at (80100): [] handle_softirqs+0xa40/0xbe4 [ 78.880510][ T5419] softirqs last disabled at (80079): [] __irq_exit_rcu+0x240/0x43c [ 78.881930][ T5419] ---[ end trace b6d5b913444c0662 ]--- [ 78.883034][ T5419] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 78.884232][ T5419] BTRFS info (device loop0): forced readonly [ 79.017956][ T5441] loop0: detected capacity change from 0 to 32768 [ 79.094736][ T5441] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.37 (5441) [ 79.097892][ T5441] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 79.099156][ T5441] BTRFS info (device loop0): setting nodatacow, compression disabled [ 79.100784][ T5441] BTRFS info (device loop0): setting datacow [ 79.101732][ T5441] BTRFS info (device loop0): doing ref verification [ 79.102721][ T5441] BTRFS info (device loop0): force clearing of disk cache [ 79.103892][ T5441] BTRFS info (device loop0): turning off barriers [ 79.104874][ T5441] BTRFS info (device loop0): use zlib compression, level 3 [ 79.105920][ T5441] BTRFS info (device loop0): using free space tree [ 79.106895][ T5441] BTRFS info (device loop0): has skinny extents [ 79.116566][ T5441] BTRFS info (device loop0): clearing free space tree [ 79.117705][ T5441] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 79.119223][ T5441] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 79.123031][ T5441] BTRFS info (device loop0): creating free space tree [ 79.124382][ T5441] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 79.126047][ T5441] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 79.130352][ T5441] FAULT_INJECTION: forcing a failure. [ 79.130352][ T5441] name failslab, interval 1, probability 0, space 0, times 0 [ 79.132174][ T5441] CPU: 1 PID: 5441 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 79.133453][ T5441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.134887][ T5441] Call trace: [ 79.135358][ T5441] dump_backtrace+0x0/0x458 [ 79.135991][ T5441] show_stack+0x2c/0x3c [ 79.136573][ T5441] __dump_stack+0x30/0x40 [ 79.137165][ T5441] dump_stack_lvl+0xf4/0x15c [ 79.137801][ T5441] dump_stack+0x1c/0x5c [ 79.138414][ T5441] should_fail+0x3bc/0x514 [ 79.139024][ T5441] __should_failslab+0xbc/0x10c [ 79.139690][ T5441] should_failslab+0x10/0x28 [ 79.140347][ T5441] slab_pre_alloc_hook+0x64/0xe8 [ 79.141037][ T5441] kmem_cache_alloc+0x94/0x3d4 [ 79.141769][ T5441] btrfs_alloc_path+0x5c/0x68 [ 79.142466][ T5441] btrfs_insert_dir_item+0x184/0x3e8 [ 79.143290][ T5441] btrfs_add_link+0x2b0/0xa9c [ 79.143972][ T5441] btrfs_create+0x468/0x514 [ 79.144633][ T5441] path_openat+0xe18/0x2718 [ 79.145369][ T5441] do_filp_open+0x184/0x368 [ 79.146071][ T5441] do_sys_openat2+0x134/0x3f4 [ 79.146790][ T5441] __arm64_sys_openat+0x118/0x14c [ 79.147511][ T5441] invoke_syscall+0x98/0x2b0 [ 79.148245][ T5441] el0_svc_common+0x138/0x258 [ 79.148919][ T5441] do_el0_svc+0x58/0x13c [ 79.149472][ T5441] el0_svc+0x78/0x1d0 [ 79.150016][ T5441] el0t_64_sync_handler+0xcc/0xe4 [ 79.150761][ T5441] el0t_64_sync+0x1a0/0x1a4 [ 79.151767][ T5441] ------------[ cut here ]------------ [ 79.152685][ T5441] WARNING: CPU: 1 PID: 5441 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 79.153996][ T5441] Modules linked in: [ 79.154567][ T5441] CPU: 1 PID: 5441 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 79.155901][ T5441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.157237][ T5441] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.158290][ T5441] pc : btrfs_add_link+0x718/0xa9c [ 79.158994][ T5441] lr : btrfs_add_link+0x718/0xa9c [ 79.159732][ T5441] sp : ffff800021807580 [ 79.160368][ T5441] x29: ffff800021807680 x28: ffff0000de6caf20 x27: 0000000000000108 [ 79.161573][ T5441] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 79.162740][ T5441] x23: 0000000000000014 x22: 1fffe0001bcd95ef x21: ffff700004300eb8 [ 79.163909][ T5441] x20: 00000000fffffff4 x19: ffff0000de6caf78 x18: 0000000000000001 [ 79.165102][ T5441] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 79.166286][ T5441] x14: 0000000000000001 x13: 1ffff00004300dd0 x12: 0000000000ff0100 [ 79.167506][ T5441] x11: 0000000000000000 x10: 0000000000000000 x9 : 53aecbf57c450d00 [ 79.168707][ T5441] x8 : 53aecbf57c450d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.169840][ T5441] x5 : ffff800021806e98 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 79.171025][ T5441] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.172304][ T5441] Call trace: [ 79.172801][ T5441] btrfs_add_link+0x718/0xa9c [ 79.173502][ T5441] btrfs_create+0x468/0x514 [ 79.174178][ T5441] path_openat+0xe18/0x2718 [ 79.174819][ T5441] do_filp_open+0x184/0x368 [ 79.175516][ T5441] do_sys_openat2+0x134/0x3f4 [ 79.176202][ T5441] __arm64_sys_openat+0x118/0x14c [ 79.176901][ T5441] invoke_syscall+0x98/0x2b0 [ 79.177541][ T5441] el0_svc_common+0x138/0x258 [ 79.178205][ T5441] do_el0_svc+0x58/0x13c [ 79.178842][ T5441] el0_svc+0x78/0x1d0 [ 79.179433][ T5441] el0t_64_sync_handler+0xcc/0xe4 [ 79.180119][ T5441] el0t_64_sync+0x1a0/0x1a4 [ 79.180767][ T5441] irq event stamp: 80348 [ 79.181450][ T5441] hardirqs last enabled at (80347): [] __up_console_sem+0xb4/0xfc [ 79.182878][ T5441] hardirqs last disabled at (80348): [] el1_dbg+0x24/0x80 [ 79.184074][ T5441] softirqs last enabled at (80328): [] handle_softirqs+0xa40/0xbe4 [ 79.185537][ T5441] softirqs last disabled at (80279): [] __irq_exit_rcu+0x240/0x43c [ 79.186911][ T5441] ---[ end trace b6d5b913444c0663 ]--- [ 79.188184][ T5441] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 79.189711][ T5441] BTRFS info (device loop0): forced readonly [ 79.370310][ T5463] loop0: detected capacity change from 0 to 32768 [ 79.421142][ T5463] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.38 (5463) [ 79.424389][ T5463] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 79.425714][ T5463] BTRFS info (device loop0): setting nodatacow, compression disabled [ 79.427031][ T5463] BTRFS info (device loop0): setting datacow [ 79.427975][ T5463] BTRFS info (device loop0): doing ref verification [ 79.428976][ T5463] BTRFS info (device loop0): force clearing of disk cache [ 79.430291][ T5463] BTRFS info (device loop0): turning off barriers [ 79.431228][ T5463] BTRFS info (device loop0): use zlib compression, level 3 [ 79.432266][ T5463] BTRFS info (device loop0): using free space tree [ 79.433322][ T5463] BTRFS info (device loop0): has skinny extents [ 79.447486][ T5463] BTRFS info (device loop0): clearing free space tree [ 79.448597][ T5463] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 79.451120][ T5463] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 79.454590][ T5463] BTRFS info (device loop0): creating free space tree [ 79.455936][ T5463] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 79.457344][ T5463] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 79.461716][ T5463] FAULT_INJECTION: forcing a failure. [ 79.461716][ T5463] name failslab, interval 1, probability 0, space 0, times 0 [ 79.463583][ T5463] CPU: 0 PID: 5463 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 79.464766][ T5463] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.466532][ T5463] Call trace: [ 79.466990][ T5463] dump_backtrace+0x0/0x458 [ 79.467679][ T5463] show_stack+0x2c/0x3c [ 79.468246][ T5463] __dump_stack+0x30/0x40 [ 79.468849][ T5463] dump_stack_lvl+0xf4/0x15c [ 79.469427][ T5463] dump_stack+0x1c/0x5c [ 79.470057][ T5463] should_fail+0x3bc/0x514 [ 79.470685][ T5463] __should_failslab+0xbc/0x10c [ 79.471379][ T5463] should_failslab+0x10/0x28 [ 79.472098][ T5463] slab_pre_alloc_hook+0x64/0xe8 [ 79.472874][ T5463] kmem_cache_alloc+0x94/0x3d4 [ 79.473622][ T5463] btrfs_alloc_path+0x5c/0x68 [ 79.474375][ T5463] btrfs_insert_dir_item+0x184/0x3e8 [ 79.475208][ T5463] btrfs_add_link+0x2b0/0xa9c [ 79.475869][ T5463] btrfs_create+0x468/0x514 [ 79.476585][ T5463] path_openat+0xe18/0x2718 [ 79.477253][ T5463] do_filp_open+0x184/0x368 [ 79.477860][ T5463] do_sys_openat2+0x134/0x3f4 [ 79.478521][ T5463] __arm64_sys_openat+0x118/0x14c [ 79.479223][ T5463] invoke_syscall+0x98/0x2b0 [ 79.479880][ T5463] el0_svc_common+0x138/0x258 [ 79.480549][ T5463] do_el0_svc+0x58/0x13c [ 79.481138][ T5463] el0_svc+0x78/0x1d0 [ 79.481725][ T5463] el0t_64_sync_handler+0xcc/0xe4 [ 79.482446][ T5463] el0t_64_sync+0x1a0/0x1a4 [ 79.484864][ T5463] ------------[ cut here ]------------ [ 79.485760][ T5463] WARNING: CPU: 0 PID: 5463 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 79.487058][ T5463] Modules linked in: [ 79.487578][ T5463] CPU: 0 PID: 5463 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 79.488732][ T5463] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.490140][ T5463] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.491265][ T5463] pc : btrfs_add_link+0x718/0xa9c [ 79.492004][ T5463] lr : btrfs_add_link+0x718/0xa9c [ 79.492726][ T5463] sp : ffff800021bb7580 [ 79.493303][ T5463] x29: ffff800021bb7680 x28: ffff0000de7bcdc0 x27: 0000000000000108 [ 79.494469][ T5463] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 79.495646][ T5463] x23: 0000000000000014 x22: 1fffe0001bcf79c3 x21: ffff700004376eb8 [ 79.496925][ T5463] x20: 00000000fffffff4 x19: ffff0000de7bce18 x18: 0000000000000001 [ 79.498055][ T5463] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 79.499269][ T5463] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 79.500475][ T5463] x11: 0000000000000000 x10: 0000000000000000 x9 : a89a91969eaa9a00 [ 79.501575][ T5463] x8 : a89a91969eaa9a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.502817][ T5463] x5 : ffff800021bb6e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 79.503999][ T5463] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.505151][ T5463] Call trace: [ 79.505689][ T5463] btrfs_add_link+0x718/0xa9c [ 79.506361][ T5463] btrfs_create+0x468/0x514 [ 79.506981][ T5463] path_openat+0xe18/0x2718 [ 79.507645][ T5463] do_filp_open+0x184/0x368 [ 79.508357][ T5463] do_sys_openat2+0x134/0x3f4 [ 79.509050][ T5463] __arm64_sys_openat+0x118/0x14c [ 79.509809][ T5463] invoke_syscall+0x98/0x2b0 [ 79.510479][ T5463] el0_svc_common+0x138/0x258 [ 79.511188][ T5463] do_el0_svc+0x58/0x13c [ 79.511867][ T5463] el0_svc+0x78/0x1d0 [ 79.512468][ T5463] el0t_64_sync_handler+0xcc/0xe4 [ 79.513195][ T5463] el0t_64_sync+0x1a0/0x1a4 [ 79.513893][ T5463] irq event stamp: 79892 [ 79.514504][ T5463] hardirqs last enabled at (79891): [] __up_console_sem+0xb4/0xfc [ 79.515986][ T5463] hardirqs last disabled at (79892): [] el1_dbg+0x24/0x80 [ 79.517200][ T5463] softirqs last enabled at (79872): [] handle_softirqs+0xa40/0xbe4 [ 79.518534][ T5463] softirqs last disabled at (79849): [] __irq_exit_rcu+0x240/0x43c [ 79.519881][ T5463] ---[ end trace b6d5b913444c0664 ]--- [ 79.522864][ T5463] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 79.524188][ T5463] BTRFS info (device loop0): forced readonly [ 79.704335][ T5485] loop0: detected capacity change from 0 to 32768 [ 79.711096][ T5485] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.39 (5485) [ 79.715983][ T5485] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 79.717502][ T5485] BTRFS info (device loop0): setting nodatacow, compression disabled [ 79.718810][ T5485] BTRFS info (device loop0): setting datacow [ 79.738129][ T5485] FAULT_INJECTION: forcing a failure. [ 79.738129][ T5485] name failslab, interval 1, probability 0, space 0, times 0 [ 79.740184][ T5485] CPU: 1 PID: 5485 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 79.741551][ T5485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.743107][ T5485] Call trace: [ 79.743592][ T5485] dump_backtrace+0x0/0x458 [ 79.744282][ T5485] show_stack+0x2c/0x3c [ 79.744866][ T5485] __dump_stack+0x30/0x40 [ 79.745492][ T5485] dump_stack_lvl+0xf4/0x15c [ 79.746166][ T5485] dump_stack+0x1c/0x5c [ 79.746754][ T5485] should_fail+0x3bc/0x514 [ 79.747403][ T5485] __should_failslab+0xbc/0x10c [ 79.748065][ T5485] should_failslab+0x10/0x28 [ 79.748767][ T5485] slab_pre_alloc_hook+0x64/0xe8 [ 79.749415][ T5485] kmem_cache_alloc+0x94/0x3d4 [ 79.750042][ T5485] btrfs_alloc_path+0x5c/0x68 [ 79.750689][ T5485] btrfs_insert_dir_item+0x184/0x3e8 [ 79.751451][ T5485] btrfs_add_link+0x2b0/0xa9c [ 79.752112][ T5485] btrfs_create+0x468/0x514 [ 79.752743][ T5485] path_openat+0xe18/0x2718 [ 79.753403][ T5485] do_filp_open+0x184/0x368 [ 79.754059][ T5485] do_sys_openat2+0x134/0x3f4 [ 79.754745][ T5485] __arm64_sys_openat+0x118/0x14c [ 79.755489][ T5485] invoke_syscall+0x98/0x2b0 [ 79.756148][ T5485] el0_svc_common+0x138/0x258 [ 79.756806][ T5485] do_el0_svc+0x58/0x13c [ 79.757411][ T5485] el0_svc+0x78/0x1d0 [ 79.757960][ T5485] el0t_64_sync_handler+0xcc/0xe4 [ 79.758848][ T5485] el0t_64_sync+0x1a0/0x1a4 [ 79.760637][ T5485] ------------[ cut here ]------------ [ 79.761729][ T5485] WARNING: CPU: 1 PID: 5485 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 79.763027][ T5485] Modules linked in: [ 79.763699][ T5485] CPU: 1 PID: 5485 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 79.764896][ T5485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.766345][ T5485] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.767493][ T5485] pc : btrfs_add_link+0x718/0xa9c [ 79.768197][ T5485] lr : btrfs_add_link+0x718/0xa9c [ 79.768977][ T5485] sp : ffff800021807580 [ 79.769590][ T5485] x29: ffff800021807680 x28: ffff0000de6cadc0 x27: 0000000000000108 [ 79.770744][ T5485] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 79.772046][ T5485] x23: 0000000000000014 x22: 1fffe0001bcd95c3 x21: ffff700004300eb8 [ 79.773138][ T5485] x20: 00000000fffffff4 x19: ffff0000de6cae18 x18: 0000000000000001 [ 79.774290][ T5485] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 79.775475][ T5485] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 79.776717][ T5485] x11: 0000000000000000 x10: 0000000000000000 x9 : 678f17641adf3a00 [ 79.777914][ T5485] x8 : 678f17641adf3a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.779017][ T5485] x5 : ffff800021806e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 79.780156][ T5485] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.781345][ T5485] Call trace: [ 79.781770][ T5485] btrfs_add_link+0x718/0xa9c [ 79.782405][ T5485] btrfs_create+0x468/0x514 [ 79.783058][ T5485] path_openat+0xe18/0x2718 [ 79.783660][ T5485] do_filp_open+0x184/0x368 [ 79.784313][ T5485] do_sys_openat2+0x134/0x3f4 [ 79.785020][ T5485] __arm64_sys_openat+0x118/0x14c [ 79.785737][ T5485] invoke_syscall+0x98/0x2b0 [ 79.786394][ T5485] el0_svc_common+0x138/0x258 [ 79.787114][ T5485] do_el0_svc+0x58/0x13c [ 79.787761][ T5485] el0_svc+0x78/0x1d0 [ 79.788338][ T5485] el0t_64_sync_handler+0xcc/0xe4 [ 79.789030][ T5485] el0t_64_sync+0x1a0/0x1a4 [ 79.789602][ T5485] irq event stamp: 79506 [ 79.790186][ T5485] hardirqs last enabled at (79505): [] __up_console_sem+0xb4/0xfc [ 79.791545][ T5485] hardirqs last disabled at (79506): [] el1_dbg+0x24/0x80 [ 79.792781][ T5485] softirqs last enabled at (79482): [] handle_softirqs+0xa40/0xbe4 [ 79.794101][ T5485] softirqs last disabled at (79471): [] __irq_exit_rcu+0x240/0x43c [ 79.795495][ T5485] ---[ end trace b6d5b913444c0665 ]--- [ 79.797544][ T5485] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 79.933472][ T5507] loop0: detected capacity change from 0 to 32768 [ 79.937748][ T5507] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.40 (5507) [ 79.961753][ T5507] FAULT_INJECTION: forcing a failure. [ 79.961753][ T5507] name failslab, interval 1, probability 0, space 0, times 0 [ 79.963935][ T5507] CPU: 0 PID: 5507 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 79.965325][ T5507] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.966772][ T5507] Call trace: [ 79.967232][ T5507] dump_backtrace+0x0/0x458 [ 79.967890][ T5507] show_stack+0x2c/0x3c [ 79.968459][ T5507] __dump_stack+0x30/0x40 [ 79.969052][ T5507] dump_stack_lvl+0xf4/0x15c [ 79.969717][ T5507] dump_stack+0x1c/0x5c [ 79.970292][ T5507] should_fail+0x3bc/0x514 [ 79.970965][ T5507] __should_failslab+0xbc/0x10c [ 79.971726][ T5507] should_failslab+0x10/0x28 [ 79.972529][ T5507] slab_pre_alloc_hook+0x64/0xe8 [ 79.973209][ T5507] kmem_cache_alloc+0x94/0x3d4 [ 79.973864][ T5507] btrfs_alloc_path+0x5c/0x68 [ 79.974670][ T5507] btrfs_insert_dir_item+0x184/0x3e8 [ 79.975446][ T5507] btrfs_add_link+0x2b0/0xa9c [ 79.976095][ T5507] btrfs_create+0x468/0x514 [ 79.976764][ T5507] path_openat+0xe18/0x2718 [ 79.977463][ T5507] do_filp_open+0x184/0x368 [ 79.978117][ T5507] do_sys_openat2+0x134/0x3f4 [ 79.978843][ T5507] __arm64_sys_openat+0x118/0x14c [ 79.979550][ T5507] invoke_syscall+0x98/0x2b0 [ 79.980266][ T5507] el0_svc_common+0x138/0x258 [ 79.980938][ T5507] do_el0_svc+0x58/0x13c [ 79.981520][ T5507] el0_svc+0x78/0x1d0 [ 79.982089][ T5507] el0t_64_sync_handler+0xcc/0xe4 [ 79.982858][ T5507] el0t_64_sync+0x1a0/0x1a4 [ 79.984902][ T5507] ------------[ cut here ]------------ [ 79.985832][ T5507] WARNING: CPU: 0 PID: 5507 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 79.987094][ T5507] Modules linked in: [ 79.987597][ T5507] CPU: 0 PID: 5507 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 79.988948][ T5507] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.990409][ T5507] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.991485][ T5507] pc : btrfs_add_link+0x718/0xa9c [ 79.992209][ T5507] lr : btrfs_add_link+0x718/0xa9c [ 79.992905][ T5507] sp : ffff800021807580 [ 79.993514][ T5507] x29: ffff800021807680 x28: ffff0000de7bcbb0 x27: 0000000000000108 [ 79.994681][ T5507] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 79.995892][ T5507] x23: 0000000000000014 x22: 1fffe0001bcf7981 x21: ffff700004300eb8 [ 79.997021][ T5507] x20: 00000000fffffff4 x19: ffff0000de7bcc08 x18: 0000000000000001 [ 79.998275][ T5507] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 79.999419][ T5507] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 80.000616][ T5507] x11: 0000000000000000 x10: 0000000000000000 x9 : d790e7119acf8f00 [ 80.001824][ T5507] x8 : d790e7119acf8f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.002960][ T5507] x5 : ffff800021806e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 80.004153][ T5507] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.005320][ T5507] Call trace: [ 80.005839][ T5507] btrfs_add_link+0x718/0xa9c [ 80.006523][ T5507] btrfs_create+0x468/0x514 [ 80.007161][ T5507] path_openat+0xe18/0x2718 [ 80.007815][ T5507] do_filp_open+0x184/0x368 [ 80.008445][ T5507] do_sys_openat2+0x134/0x3f4 [ 80.009091][ T5507] __arm64_sys_openat+0x118/0x14c [ 80.009833][ T5507] invoke_syscall+0x98/0x2b0 [ 80.010496][ T5507] el0_svc_common+0x138/0x258 [ 80.011248][ T5507] do_el0_svc+0x58/0x13c [ 80.011835][ T5507] el0_svc+0x78/0x1d0 [ 80.012386][ T5507] el0t_64_sync_handler+0xcc/0xe4 [ 80.013116][ T5507] el0t_64_sync+0x1a0/0x1a4 [ 80.013776][ T5507] irq event stamp: 79956 [ 80.014412][ T5507] hardirqs last enabled at (79955): [] __up_console_sem+0xb4/0xfc [ 80.015713][ T5507] hardirqs last disabled at (79956): [] el1_dbg+0x24/0x80 [ 80.016932][ T5507] softirqs last enabled at (79936): [] handle_softirqs+0xa40/0xbe4 [ 80.018203][ T5507] softirqs last disabled at (79889): [] __irq_exit_rcu+0x240/0x43c [ 80.019491][ T5507] ---[ end trace b6d5b913444c0666 ]--- [ 80.021430][ T5507] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 80.156544][ T5529] loop0: detected capacity change from 0 to 32768 [ 80.164719][ T5529] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.41 (5529) [ 80.185087][ T5529] FAULT_INJECTION: forcing a failure. [ 80.185087][ T5529] name failslab, interval 1, probability 0, space 0, times 0 [ 80.186903][ T5529] CPU: 1 PID: 5529 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 80.188127][ T5529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.189535][ T5529] Call trace: [ 80.189990][ T5529] dump_backtrace+0x0/0x458 [ 80.190654][ T5529] show_stack+0x2c/0x3c [ 80.191188][ T5529] __dump_stack+0x30/0x40 [ 80.191825][ T5529] dump_stack_lvl+0xf4/0x15c [ 80.192477][ T5529] dump_stack+0x1c/0x5c [ 80.193107][ T5529] should_fail+0x3bc/0x514 [ 80.193868][ T5529] __should_failslab+0xbc/0x10c [ 80.194650][ T5529] should_failslab+0x10/0x28 [ 80.195414][ T5529] slab_pre_alloc_hook+0x64/0xe8 [ 80.196135][ T5529] kmem_cache_alloc+0x94/0x3d4 [ 80.196850][ T5529] btrfs_alloc_path+0x5c/0x68 [ 80.197549][ T5529] btrfs_insert_dir_item+0x184/0x3e8 [ 80.198288][ T5529] btrfs_add_link+0x2b0/0xa9c [ 80.198931][ T5529] btrfs_create+0x468/0x514 [ 80.199590][ T5529] path_openat+0xe18/0x2718 [ 80.200225][ T5529] do_filp_open+0x184/0x368 [ 80.200887][ T5529] do_sys_openat2+0x134/0x3f4 [ 80.201601][ T5529] __arm64_sys_openat+0x118/0x14c [ 80.202273][ T5529] invoke_syscall+0x98/0x2b0 [ 80.202944][ T5529] el0_svc_common+0x138/0x258 [ 80.203678][ T5529] do_el0_svc+0x58/0x13c [ 80.204327][ T5529] el0_svc+0x78/0x1d0 [ 80.204865][ T5529] el0t_64_sync_handler+0xcc/0xe4 [ 80.205622][ T5529] el0t_64_sync+0x1a0/0x1a4 [ 80.207993][ T5529] ------------[ cut here ]------------ [ 80.208902][ T5529] WARNING: CPU: 1 PID: 5529 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 80.210236][ T5529] Modules linked in: [ 80.210790][ T5529] CPU: 1 PID: 5529 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 80.212068][ T5529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.213505][ T5529] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.214650][ T5529] pc : btrfs_add_link+0x718/0xa9c [ 80.215331][ T5529] lr : btrfs_add_link+0x718/0xa9c [ 80.216040][ T5529] sp : ffff8000223a7580 [ 80.216591][ T5529] x29: ffff8000223a7680 x28: ffff0000de6ca370 x27: 0000000000000108 [ 80.217770][ T5529] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 80.218915][ T5529] x23: 0000000000000014 x22: 1fffe0001bcd9479 x21: ffff700004474eb8 [ 80.220133][ T5529] x20: 00000000fffffff4 x19: ffff0000de6ca3c8 x18: 0000000000000001 [ 80.221213][ T5529] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 80.222368][ T5529] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 80.223595][ T5529] x11: 0000000000000000 x10: 0000000000000000 x9 : 20b3b7befa57f600 [ 80.224700][ T5529] x8 : 20b3b7befa57f600 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.225853][ T5529] x5 : ffff8000223a6e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 80.227050][ T5529] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.228196][ T5529] Call trace: [ 80.228724][ T5529] btrfs_add_link+0x718/0xa9c [ 80.229459][ T5529] btrfs_create+0x468/0x514 [ 80.230137][ T5529] path_openat+0xe18/0x2718 [ 80.230790][ T5529] do_filp_open+0x184/0x368 [ 80.231481][ T5529] do_sys_openat2+0x134/0x3f4 [ 80.232205][ T5529] __arm64_sys_openat+0x118/0x14c [ 80.232889][ T5529] invoke_syscall+0x98/0x2b0 [ 80.233511][ T5529] el0_svc_common+0x138/0x258 [ 80.234211][ T5529] do_el0_svc+0x58/0x13c [ 80.234861][ T5529] el0_svc+0x78/0x1d0 [ 80.235410][ T5529] el0t_64_sync_handler+0xcc/0xe4 [ 80.236282][ T5529] el0t_64_sync+0x1a0/0x1a4 [ 80.236949][ T5529] irq event stamp: 79714 [ 80.237473][ T5529] hardirqs last enabled at (79713): [] __up_console_sem+0xb4/0xfc [ 80.238852][ T5529] hardirqs last disabled at (79714): [] el1_dbg+0x24/0x80 [ 80.240160][ T5529] softirqs last enabled at (79694): [] handle_softirqs+0xa40/0xbe4 [ 80.241590][ T5529] softirqs last disabled at (79619): [] __irq_exit_rcu+0x240/0x43c [ 80.243031][ T5529] ---[ end trace b6d5b913444c0667 ]--- [ 80.246021][ T5529] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 80.380605][ T5551] loop0: detected capacity change from 0 to 32768 [ 80.387886][ T5551] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.42 (5551) [ 80.403088][ T5551] FAULT_INJECTION: forcing a failure. [ 80.403088][ T5551] name failslab, interval 1, probability 0, space 0, times 0 [ 80.404970][ T5551] CPU: 1 PID: 5551 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 80.406102][ T5551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.407591][ T5551] Call trace: [ 80.408067][ T5551] dump_backtrace+0x0/0x458 [ 80.408701][ T5551] show_stack+0x2c/0x3c [ 80.409281][ T5551] __dump_stack+0x30/0x40 [ 80.409979][ T5551] dump_stack_lvl+0xf4/0x15c [ 80.410644][ T5551] dump_stack+0x1c/0x5c [ 80.411190][ T5551] should_fail+0x3bc/0x514 [ 80.411806][ T5551] __should_failslab+0xbc/0x10c [ 80.412502][ T5551] should_failslab+0x10/0x28 [ 80.413179][ T5551] slab_pre_alloc_hook+0x64/0xe8 [ 80.413959][ T5551] kmem_cache_alloc+0x94/0x3d4 [ 80.414708][ T5551] btrfs_get_or_create_delayed_node+0x114/0x4a8 [ 80.415602][ T5551] btrfs_delayed_update_inode+0x3c/0x1b68 [ 80.416404][ T5551] btrfs_update_inode+0x210/0x3d4 [ 80.417147][ T5551] btrfs_create+0x364/0x514 [ 80.417766][ T5551] path_openat+0xe18/0x2718 [ 80.418454][ T5551] do_filp_open+0x184/0x368 [ 80.419104][ T5551] do_sys_openat2+0x134/0x3f4 [ 80.419752][ T5551] __arm64_sys_openat+0x118/0x14c [ 80.420587][ T5551] invoke_syscall+0x98/0x2b0 [ 80.421365][ T5551] el0_svc_common+0x138/0x258 [ 80.422078][ T5551] do_el0_svc+0x58/0x13c [ 80.422678][ T5551] el0_svc+0x78/0x1d0 [ 80.423269][ T5551] el0t_64_sync_handler+0xcc/0xe4 [ 80.424024][ T5551] el0t_64_sync+0x1a0/0x1a4 [ 80.463686][ T4943] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 12 /dev/loop0 scanned by udevd (4943) [ 80.582112][ T5572] FAULT_INJECTION: forcing a failure. [ 80.582112][ T5572] name failslab, interval 1, probability 0, space 0, times 0 [ 80.583991][ T5572] CPU: 1 PID: 5572 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 80.585172][ T5572] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.586622][ T5572] Call trace: [ 80.587117][ T5572] dump_backtrace+0x0/0x458 [ 80.587752][ T5572] show_stack+0x2c/0x3c [ 80.588291][ T5572] __dump_stack+0x30/0x40 [ 80.588862][ T5572] dump_stack_lvl+0xf4/0x15c [ 80.589555][ T5572] dump_stack+0x1c/0x5c [ 80.590180][ T5572] should_fail+0x3bc/0x514 [ 80.590839][ T5572] __should_failslab+0xbc/0x10c [ 80.591567][ T5572] should_failslab+0x10/0x28 [ 80.592357][ T5572] slab_pre_alloc_hook+0x64/0xe8 [ 80.593119][ T5572] kmem_cache_alloc+0x94/0x3d4 [ 80.593862][ T5572] security_inode_alloc+0x38/0x11c [ 80.594611][ T5572] inode_init_always+0x670/0xa84 [ 80.595277][ T5572] new_inode_pseudo+0x7c/0x1fc [ 80.595897][ T5572] new_inode+0x38/0x174 [ 80.596420][ T5572] btrfs_new_inode+0x158/0x1564 [ 80.597098][ T5572] btrfs_create+0x24c/0x514 [ 80.597704][ T5572] path_openat+0xe18/0x2718 [ 80.598306][ T5572] do_filp_open+0x184/0x368 [ 80.598964][ T5572] do_sys_openat2+0x134/0x3f4 [ 80.599645][ T5572] __arm64_sys_openat+0x118/0x14c [ 80.600307][ T5572] invoke_syscall+0x98/0x2b0 [ 80.600937][ T5572] el0_svc_common+0x138/0x258 [ 80.601596][ T5572] do_el0_svc+0x58/0x13c [ 80.602225][ T5572] el0_svc+0x78/0x1d0 [ 80.602799][ T5572] el0t_64_sync_handler+0xcc/0xe4 [ 80.603520][ T5572] el0t_64_sync+0x1a0/0x1a4 [ 80.854661][ T5595] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.44 (5595) [ 80.878067][ T5595] FAULT_INJECTION: forcing a failure. [ 80.878067][ T5595] name failslab, interval 1, probability 0, space 0, times 0 [ 80.880884][ T5595] CPU: 1 PID: 5595 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 80.882070][ T5595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.883643][ T5595] Call trace: [ 80.884096][ T5595] dump_backtrace+0x0/0x458 [ 80.884706][ T5595] show_stack+0x2c/0x3c [ 80.885255][ T5595] __dump_stack+0x30/0x40 [ 80.885831][ T5595] dump_stack_lvl+0xf4/0x15c [ 80.886471][ T5595] dump_stack+0x1c/0x5c [ 80.887075][ T5595] should_fail+0x3bc/0x514 [ 80.887707][ T5595] __should_failslab+0xbc/0x10c [ 80.888322][ T5595] should_failslab+0x10/0x28 [ 80.888950][ T5595] slab_pre_alloc_hook+0x64/0xe8 [ 80.889602][ T5595] kmem_cache_alloc+0x94/0x3d4 [ 80.890262][ T5595] btrfs_alloc_path+0x5c/0x68 [ 80.890915][ T5595] btrfs_insert_dir_item+0x184/0x3e8 [ 80.891625][ T5595] btrfs_add_link+0x2b0/0xa9c [ 80.892309][ T5595] btrfs_create+0x468/0x514 [ 80.892918][ T5595] path_openat+0xe18/0x2718 [ 80.893572][ T5595] do_filp_open+0x184/0x368 [ 80.894203][ T5595] do_sys_openat2+0x134/0x3f4 [ 80.894851][ T5595] __arm64_sys_openat+0x118/0x14c [ 80.895528][ T5595] invoke_syscall+0x98/0x2b0 [ 80.896174][ T5595] el0_svc_common+0x138/0x258 [ 80.896828][ T5595] do_el0_svc+0x58/0x13c [ 80.897448][ T5595] el0_svc+0x78/0x1d0 [ 80.897980][ T5595] el0t_64_sync_handler+0xcc/0xe4 [ 80.898847][ T5595] el0t_64_sync+0x1a0/0x1a4 [ 80.900890][ T5595] ------------[ cut here ]------------ [ 80.901753][ T5595] WARNING: CPU: 1 PID: 5595 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 80.903012][ T5595] Modules linked in: [ 80.903583][ T5595] CPU: 1 PID: 5595 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 80.904736][ T5595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.906095][ T5595] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.907157][ T5595] pc : btrfs_add_link+0x718/0xa9c [ 80.907843][ T5595] lr : btrfs_add_link+0x718/0xa9c [ 80.908544][ T5595] sp : ffff800022737580 [ 80.909120][ T5595] x29: ffff800022737680 x28: ffff0000cf97a0b0 x27: 0000000000000108 [ 80.910226][ T5595] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 80.911398][ T5595] x23: 0000000000000014 x22: 1fffe00019f2f421 x21: ffff7000044e6eb8 [ 80.912504][ T5595] x20: 00000000fffffff4 x19: ffff0000cf97a108 x18: 0000000000000001 [ 80.913716][ T5595] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 80.914875][ T5595] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 80.916073][ T5595] x11: 0000000000000000 x10: 0000000000000000 x9 : ea758a3d3098d100 [ 80.917222][ T5595] x8 : ea758a3d3098d100 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.918491][ T5595] x5 : ffff800022736e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 80.919645][ T5595] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.920867][ T5595] Call trace: [ 80.921334][ T5595] btrfs_add_link+0x718/0xa9c [ 80.921990][ T5595] btrfs_create+0x468/0x514 [ 80.922646][ T5595] path_openat+0xe18/0x2718 [ 80.923273][ T5595] do_filp_open+0x184/0x368 [ 80.923982][ T5595] do_sys_openat2+0x134/0x3f4 [ 80.924691][ T5595] __arm64_sys_openat+0x118/0x14c [ 80.925379][ T5595] invoke_syscall+0x98/0x2b0 [ 80.926112][ T5595] el0_svc_common+0x138/0x258 [ 80.926802][ T5595] do_el0_svc+0x58/0x13c [ 80.927471][ T5595] el0_svc+0x78/0x1d0 [ 80.928063][ T5595] el0t_64_sync_handler+0xcc/0xe4 [ 80.928867][ T5595] el0t_64_sync+0x1a0/0x1a4 [ 80.929499][ T5595] irq event stamp: 79716 [ 80.930136][ T5595] hardirqs last enabled at (79715): [] __up_console_sem+0xb4/0xfc [ 80.931464][ T5595] hardirqs last disabled at (79716): [] el1_dbg+0x24/0x80 [ 80.932748][ T5595] softirqs last enabled at (79696): [] handle_softirqs+0xa40/0xbe4 [ 80.934112][ T5595] softirqs last disabled at (79685): [] __irq_exit_rcu+0x240/0x43c [ 80.935394][ T5595] ---[ end trace b6d5b913444c0668 ]--- [ 80.936880][ T5595] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 81.152487][ T5617] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.45 (5617) [ 81.177491][ T5617] FAULT_INJECTION: forcing a failure. [ 81.177491][ T5617] name failslab, interval 1, probability 0, space 0, times 0 [ 81.179389][ T5617] CPU: 0 PID: 5617 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 81.180671][ T5617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.182069][ T5617] Call trace: [ 81.182544][ T5617] dump_backtrace+0x0/0x458 [ 81.183235][ T5617] show_stack+0x2c/0x3c [ 81.183825][ T5617] __dump_stack+0x30/0x40 [ 81.184458][ T5617] dump_stack_lvl+0xf4/0x15c [ 81.185126][ T5617] dump_stack+0x1c/0x5c [ 81.185775][ T5617] should_fail+0x3bc/0x514 [ 81.186399][ T5617] __should_failslab+0xbc/0x10c [ 81.187179][ T5617] should_failslab+0x10/0x28 [ 81.187842][ T5617] slab_pre_alloc_hook+0x64/0xe8 [ 81.188541][ T5617] kmem_cache_alloc+0x94/0x3d4 [ 81.189248][ T5617] btrfs_alloc_path+0x5c/0x68 [ 81.189897][ T5617] btrfs_insert_dir_item+0x184/0x3e8 [ 81.190682][ T5617] btrfs_add_link+0x2b0/0xa9c [ 81.191372][ T5617] btrfs_create+0x468/0x514 [ 81.192110][ T5617] path_openat+0xe18/0x2718 [ 81.192783][ T5617] do_filp_open+0x184/0x368 [ 81.193395][ T5617] do_sys_openat2+0x134/0x3f4 [ 81.194070][ T5617] __arm64_sys_openat+0x118/0x14c [ 81.194822][ T5617] invoke_syscall+0x98/0x2b0 [ 81.195481][ T5617] el0_svc_common+0x138/0x258 [ 81.196169][ T5617] do_el0_svc+0x58/0x13c [ 81.196866][ T5617] el0_svc+0x78/0x1d0 [ 81.197508][ T5617] el0t_64_sync_handler+0xcc/0xe4 [ 81.198238][ T5617] el0t_64_sync+0x1a0/0x1a4 [ 81.199689][ T5617] ------------[ cut here ]------------ [ 81.200742][ T5617] WARNING: CPU: 0 PID: 5617 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 81.202031][ T5617] Modules linked in: [ 81.202583][ T5617] CPU: 0 PID: 5617 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 81.203861][ T5617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.205390][ T5617] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.206573][ T5617] pc : btrfs_add_link+0x718/0xa9c [ 81.207258][ T5617] lr : btrfs_add_link+0x718/0xa9c [ 81.207981][ T5617] sp : ffff800021bb7580 [ 81.208565][ T5617] x29: ffff800021bb7680 x28: ffff0000de7bc580 x27: 0000000000000108 [ 81.209682][ T5617] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 81.210897][ T5617] x23: 0000000000000014 x22: 1fffe0001bcf78bb x21: ffff700004376eb8 [ 81.212050][ T5617] x20: 00000000fffffff4 x19: ffff0000de7bc5d8 x18: 0000000000000001 [ 81.213037][ T5617] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 81.214198][ T5617] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 81.215322][ T5617] x11: 0000000000000000 x10: 0000000000000000 x9 : 1349e3af1bc8bc00 [ 81.216484][ T5617] x8 : 1349e3af1bc8bc00 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.217679][ T5617] x5 : ffff800021bb6e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 81.218787][ T5617] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.220003][ T5617] Call trace: [ 81.220476][ T5617] btrfs_add_link+0x718/0xa9c [ 81.221147][ T5617] btrfs_create+0x468/0x514 [ 81.221818][ T5617] path_openat+0xe18/0x2718 [ 81.222489][ T5617] do_filp_open+0x184/0x368 [ 81.223223][ T5617] do_sys_openat2+0x134/0x3f4 [ 81.223861][ T5617] __arm64_sys_openat+0x118/0x14c [ 81.224615][ T5617] invoke_syscall+0x98/0x2b0 [ 81.225258][ T5617] el0_svc_common+0x138/0x258 [ 81.226014][ T5617] do_el0_svc+0x58/0x13c [ 81.226650][ T5617] el0_svc+0x78/0x1d0 [ 81.227187][ T5617] el0t_64_sync_handler+0xcc/0xe4 [ 81.227912][ T5617] el0t_64_sync+0x1a0/0x1a4 [ 81.228568][ T5617] irq event stamp: 79948 [ 81.229207][ T5617] hardirqs last enabled at (79947): [] __up_console_sem+0xb4/0xfc [ 81.230659][ T5617] hardirqs last disabled at (79948): [] el1_dbg+0x24/0x80 [ 81.231877][ T5617] softirqs last enabled at (79936): [] handle_softirqs+0xa40/0xbe4 [ 81.233349][ T5617] softirqs last disabled at (79919): [] __irq_exit_rcu+0x240/0x43c [ 81.234720][ T5617] ---[ end trace b6d5b913444c0669 ]--- [ 81.237396][ T5617] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 81.394594][ T5639] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.46 (5639) [ 81.420570][ T5639] FAULT_INJECTION: forcing a failure. [ 81.420570][ T5639] name failslab, interval 1, probability 0, space 0, times 0 [ 81.422579][ T5639] CPU: 1 PID: 5639 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 81.423964][ T5639] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.425582][ T5639] Call trace: [ 81.426074][ T5639] dump_backtrace+0x0/0x458 [ 81.426795][ T5639] show_stack+0x2c/0x3c [ 81.427397][ T5639] __dump_stack+0x30/0x40 [ 81.428099][ T5639] dump_stack_lvl+0xf4/0x15c [ 81.428834][ T5639] dump_stack+0x1c/0x5c [ 81.429477][ T5639] should_fail+0x3bc/0x514 [ 81.430140][ T5639] __should_failslab+0xbc/0x10c [ 81.430914][ T5639] should_failslab+0x10/0x28 [ 81.431582][ T5639] slab_pre_alloc_hook+0x64/0xe8 [ 81.432315][ T5639] kmem_cache_alloc+0x94/0x3d4 [ 81.432989][ T5639] btrfs_alloc_path+0x5c/0x68 [ 81.433767][ T5639] btrfs_insert_dir_item+0x184/0x3e8 [ 81.434582][ T5639] btrfs_add_link+0x2b0/0xa9c [ 81.435237][ T5639] btrfs_create+0x468/0x514 [ 81.435927][ T5639] path_openat+0xe18/0x2718 [ 81.436588][ T5639] do_filp_open+0x184/0x368 [ 81.437271][ T5639] do_sys_openat2+0x134/0x3f4 [ 81.438060][ T5639] __arm64_sys_openat+0x118/0x14c [ 81.438799][ T5639] invoke_syscall+0x98/0x2b0 [ 81.439493][ T5639] el0_svc_common+0x138/0x258 [ 81.440204][ T5639] do_el0_svc+0x58/0x13c [ 81.440850][ T5639] el0_svc+0x78/0x1d0 [ 81.441436][ T5639] el0t_64_sync_handler+0xcc/0xe4 [ 81.442179][ T5639] el0t_64_sync+0x1a0/0x1a4 [ 81.445441][ T5639] ------------[ cut here ]------------ [ 81.446398][ T5639] WARNING: CPU: 1 PID: 5639 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 81.447707][ T5639] Modules linked in: [ 81.448286][ T5639] CPU: 1 PID: 5639 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 81.449494][ T5639] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.450888][ T5639] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.451997][ T5639] pc : btrfs_add_link+0x718/0xa9c [ 81.452704][ T5639] lr : btrfs_add_link+0x718/0xa9c [ 81.453429][ T5639] sp : ffff800022737580 [ 81.454021][ T5639] x29: ffff800022737680 x28: ffff0000cf97a790 x27: 0000000000000108 [ 81.455148][ T5639] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 81.456326][ T5639] x23: 0000000000000014 x22: 1fffe00019f2f4fd x21: ffff7000044e6eb8 [ 81.457536][ T5639] x20: 00000000fffffff4 x19: ffff0000cf97a7e8 x18: 0000000000000001 [ 81.458625][ T5639] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 81.459725][ T5639] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 81.460861][ T5639] x11: 0000000000000000 x10: 0000000000000000 x9 : 5dec13c5c589ba00 [ 81.462000][ T5639] x8 : 5dec13c5c589ba00 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.463112][ T5639] x5 : ffff800022736e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 81.464326][ T5639] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.465514][ T5639] Call trace: [ 81.465948][ T5639] btrfs_add_link+0x718/0xa9c [ 81.466665][ T5639] btrfs_create+0x468/0x514 [ 81.467364][ T5639] path_openat+0xe18/0x2718 [ 81.468076][ T5639] do_filp_open+0x184/0x368 [ 81.468718][ T5639] do_sys_openat2+0x134/0x3f4 [ 81.469445][ T5639] __arm64_sys_openat+0x118/0x14c [ 81.470214][ T5639] invoke_syscall+0x98/0x2b0 [ 81.470861][ T5639] el0_svc_common+0x138/0x258 [ 81.471555][ T5639] do_el0_svc+0x58/0x13c [ 81.472159][ T5639] el0_svc+0x78/0x1d0 [ 81.472722][ T5639] el0t_64_sync_handler+0xcc/0xe4 [ 81.473390][ T5639] el0t_64_sync+0x1a0/0x1a4 [ 81.474066][ T5639] irq event stamp: 79572 [ 81.474670][ T5639] hardirqs last enabled at (79571): [] __up_console_sem+0xb4/0xfc [ 81.476061][ T5639] hardirqs last disabled at (79572): [] el1_dbg+0x24/0x80 [ 81.477289][ T5639] softirqs last enabled at (79552): [] handle_softirqs+0xa40/0xbe4 [ 81.478690][ T5639] softirqs last disabled at (79477): [] __irq_exit_rcu+0x240/0x43c [ 81.480022][ T5639] ---[ end trace b6d5b913444c066a ]--- [ 81.482849][ T5639] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 81.691058][ T5661] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.47 (5661) [ 81.707945][ T5661] FAULT_INJECTION: forcing a failure. [ 81.707945][ T5661] name failslab, interval 1, probability 0, space 0, times 0 [ 81.710283][ T5661] CPU: 0 PID: 5661 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 81.711594][ T5661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.713072][ T5661] Call trace: [ 81.713548][ T5661] dump_backtrace+0x0/0x458 [ 81.714183][ T5661] show_stack+0x2c/0x3c [ 81.714753][ T5661] __dump_stack+0x30/0x40 [ 81.715340][ T5661] dump_stack_lvl+0xf4/0x15c [ 81.715995][ T5661] dump_stack+0x1c/0x5c [ 81.716585][ T5661] should_fail+0x3bc/0x514 [ 81.717193][ T5661] __should_failslab+0xbc/0x10c [ 81.717893][ T5661] should_failslab+0x10/0x28 [ 81.718471][ T5661] slab_pre_alloc_hook+0x64/0xe8 [ 81.719186][ T5661] kmem_cache_alloc+0x94/0x3d4 [ 81.719804][ T5661] btrfs_alloc_path+0x5c/0x68 [ 81.720414][ T5661] btrfs_insert_dir_item+0x184/0x3e8 [ 81.721109][ T5661] btrfs_add_link+0x2b0/0xa9c [ 81.721721][ T5661] btrfs_create+0x468/0x514 [ 81.722335][ T5661] path_openat+0xe18/0x2718 [ 81.722938][ T5661] do_filp_open+0x184/0x368 [ 81.723572][ T5661] do_sys_openat2+0x134/0x3f4 [ 81.724213][ T5661] __arm64_sys_openat+0x118/0x14c [ 81.724906][ T5661] invoke_syscall+0x98/0x2b0 [ 81.725546][ T5661] el0_svc_common+0x138/0x258 [ 81.726194][ T5661] do_el0_svc+0x58/0x13c [ 81.726793][ T5661] el0_svc+0x78/0x1d0 [ 81.727337][ T5661] el0t_64_sync_handler+0xcc/0xe4 [ 81.728054][ T5661] el0t_64_sync+0x1a0/0x1a4 [ 81.728920][ T5661] ------------[ cut here ]------------ [ 81.729824][ T5661] WARNING: CPU: 0 PID: 5661 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 81.731134][ T5661] Modules linked in: [ 81.731708][ T5661] CPU: 0 PID: 5661 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 81.732993][ T5661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.734459][ T5661] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.735554][ T5661] pc : btrfs_add_link+0x718/0xa9c [ 81.736263][ T5661] lr : btrfs_add_link+0x718/0xa9c [ 81.736978][ T5661] sp : ffff800022d57580 [ 81.737579][ T5661] x29: ffff800022d57680 x28: ffff0000de7bc370 x27: 0000000000000108 [ 81.738753][ T5661] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 81.739872][ T5661] x23: 0000000000000014 x22: 1fffe0001bcf7879 x21: ffff7000045aaeb8 [ 81.741004][ T5661] x20: 00000000fffffff4 x19: ffff0000de7bc3c8 x18: 0000000000000001 [ 81.742339][ T5661] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 81.743520][ T5661] x14: 0000000000000001 x13: 1ffff000045aadd0 x12: 0000000000ff0100 [ 81.744614][ T5661] x11: 0000000000000000 x10: 0000000000000000 x9 : 074143073a254300 [ 81.745839][ T5661] x8 : 074143073a254300 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.746991][ T5661] x5 : ffff800022d56e98 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 81.748138][ T5661] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.749334][ T5661] Call trace: [ 81.749795][ T5661] btrfs_add_link+0x718/0xa9c [ 81.750475][ T5661] btrfs_create+0x468/0x514 [ 81.751173][ T5661] path_openat+0xe18/0x2718 [ 81.751804][ T5661] do_filp_open+0x184/0x368 [ 81.752415][ T5661] do_sys_openat2+0x134/0x3f4 [ 81.753092][ T5661] __arm64_sys_openat+0x118/0x14c [ 81.753826][ T5661] invoke_syscall+0x98/0x2b0 [ 81.754440][ T5661] el0_svc_common+0x138/0x258 [ 81.755126][ T5661] do_el0_svc+0x58/0x13c [ 81.755793][ T5661] el0_svc+0x78/0x1d0 [ 81.756355][ T5661] el0t_64_sync_handler+0xcc/0xe4 [ 81.757080][ T5661] el0t_64_sync+0x1a0/0x1a4 [ 81.757591][ T5661] irq event stamp: 79888 [ 81.758284][ T5661] hardirqs last enabled at (79887): [] __up_console_sem+0xb4/0xfc [ 81.759652][ T5661] hardirqs last disabled at (79888): [] el1_dbg+0x24/0x80 [ 81.760919][ T5661] softirqs last enabled at (79868): [] handle_softirqs+0xa40/0xbe4 [ 81.762223][ T5661] softirqs last disabled at (79831): [] __irq_exit_rcu+0x240/0x43c [ 81.763483][ T5661] ---[ end trace b6d5b913444c066b ]--- [ 81.764465][ T5661] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 81.913491][ T5683] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.48 (5683) [ 81.930688][ T5683] FAULT_INJECTION: forcing a failure. [ 81.930688][ T5683] name failslab, interval 1, probability 0, space 0, times 0 [ 81.932747][ T5683] CPU: 1 PID: 5683 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 81.933984][ T5683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.935533][ T5683] Call trace: [ 81.935986][ T5683] dump_backtrace+0x0/0x458 [ 81.936686][ T5683] show_stack+0x2c/0x3c [ 81.937264][ T5683] __dump_stack+0x30/0x40 [ 81.937922][ T5683] dump_stack_lvl+0xf4/0x15c [ 81.938548][ T5683] dump_stack+0x1c/0x5c [ 81.939124][ T5683] should_fail+0x3bc/0x514 [ 81.939766][ T5683] __should_failslab+0xbc/0x10c [ 81.940513][ T5683] should_failslab+0x10/0x28 [ 81.941189][ T5683] slab_pre_alloc_hook+0x64/0xe8 [ 81.941973][ T5683] kmem_cache_alloc+0x94/0x3d4 [ 81.942693][ T5683] btrfs_alloc_path+0x5c/0x68 [ 81.943341][ T5683] btrfs_insert_dir_item+0x184/0x3e8 [ 81.944152][ T5683] btrfs_add_link+0x2b0/0xa9c [ 81.944804][ T5683] btrfs_create+0x468/0x514 [ 81.945502][ T5683] path_openat+0xe18/0x2718 [ 81.946125][ T5683] do_filp_open+0x184/0x368 [ 81.946794][ T5683] do_sys_openat2+0x134/0x3f4 [ 81.947502][ T5683] __arm64_sys_openat+0x118/0x14c [ 81.948250][ T5683] invoke_syscall+0x98/0x2b0 [ 81.948939][ T5683] el0_svc_common+0x138/0x258 [ 81.949567][ T5683] do_el0_svc+0x58/0x13c [ 81.950198][ T5683] el0_svc+0x78/0x1d0 [ 81.950795][ T5683] el0t_64_sync_handler+0xcc/0xe4 [ 81.951504][ T5683] el0t_64_sync+0x1a0/0x1a4 [ 81.953799][ T5683] ------------[ cut here ]------------ [ 81.954675][ T5683] WARNING: CPU: 1 PID: 5683 at fs/btrfs/inode.c:6776 btrfs_add_link+0x718/0xa9c [ 81.956015][ T5683] Modules linked in: [ 81.956491][ T5683] CPU: 1 PID: 5683 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 81.957657][ T5683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.959249][ T5683] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.960376][ T5683] pc : btrfs_add_link+0x718/0xa9c [ 81.961116][ T5683] lr : btrfs_add_link+0x718/0xa9c [ 81.961928][ T5683] sp : ffff800021bb7580 [ 81.962569][ T5683] x29: ffff800021bb7680 x28: ffff0000de6ca9a0 x27: 0000000000000108 [ 81.963828][ T5683] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 81.964974][ T5683] x23: 0000000000000014 x22: 1fffe0001bcd953f x21: ffff700004376eb8 [ 81.966123][ T5683] x20: 00000000fffffff4 x19: ffff0000de6ca9f8 x18: 0000000000000001 [ 81.967240][ T5683] x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff [ 81.968349][ T5683] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 81.969489][ T5683] x11: 0000000000000000 x10: 0000000000000000 x9 : 20c07655f3603700 [ 81.970640][ T5683] x8 : 20c07655f3603700 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.971802][ T5683] x5 : ffff800021bb6e98 x4 : ffff80001436f3e0 x3 : ffff800008508e1c [ 81.972969][ T5683] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.974117][ T5683] Call trace: [ 81.974643][ T5683] btrfs_add_link+0x718/0xa9c [ 81.975306][ T5683] btrfs_create+0x468/0x514 [ 81.975935][ T5683] path_openat+0xe18/0x2718 [ 81.976503][ T5683] do_filp_open+0x184/0x368 [ 81.977182][ T5683] do_sys_openat2+0x134/0x3f4 [ 81.977801][ T5683] __arm64_sys_openat+0x118/0x14c [ 81.978488][ T5683] invoke_syscall+0x98/0x2b0 [ 81.979167][ T5683] el0_svc_common+0x138/0x258 [ 81.979876][ T5683] do_el0_svc+0x58/0x13c [ 81.980514][ T5683] el0_svc+0x78/0x1d0 [ 81.981082][ T5683] el0t_64_sync_handler+0xcc/0xe4 [ 81.981765][ T5683] el0t_64_sync+0x1a0/0x1a4 [ 81.982363][ T5683] irq event stamp: 79668 [ 81.982895][ T5683] hardirqs last enabled at (79667): [] __up_console_sem+0xb4/0xfc [ 81.984258][ T5683] hardirqs last disabled at (79668): [] el1_dbg+0x24/0x80 [ 81.985581][ T5683] softirqs last enabled at (79648): [] handle_softirqs+0xa40/0xbe4 [ 81.986963][ T5683] softirqs last disabled at (79595): [] __irq_exit_rcu+0x240/0x43c [ 81.988358][ T5683] ---[ end trace b6d5b913444c066c ]--- [ 81.991672][ T5683] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 82.212350][ T5705] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.49 (5705) [ 82.228304][ T5705] FAULT_INJECTION: forcing a failure. [ 82.228304][ T5705] name failslab, interval 1, probability 0, space 0, times 0 [ 82.230273][ T5705] CPU: 1 PID: 5705 Comm: syz.0.49 Tainted: G W syzkaller #0 [ 82.231514][ T5705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.232854][ T5705] Call trace: [ 82.233301][ T5705] dump_backtrace+0x0/0x458 [ 82.233982][ T5705] show_stack+0x2c/0x3c [ 82.234633][ T5705] __dump_stack+0x30/0x40 [ 82.235277][ T5705] dump_stack_lvl+0xf4/0x15c [ 82.236018][ T5705] dump_stack+0x1c/0x5c [ 82.236625][ T5705] should_fail+0x3bc/0x514 [ 82.237226][ T5705] __should_failslab+0xbc/0x10c [ 82.237933][ T5705] should_failslab+0x10/0x28 [ 82.238646][ T5705] slab_pre_alloc_hook+0x64/0xe8 [ 82.239321][ T5705] kmem_cache_alloc+0x94/0x3d4 [ 82.239966][ T5705] btrfs_get_or_create_delayed_node+0x114/0x4a8 [ 82.240908][ T5705] btrfs_delayed_update_inode+0x3c/0x1b68 [ 82.241700][ T5705] btrfs_update_inode+0x210/0x3d4 [ 82.242446][ T5705] btrfs_create+0x364/0x514 [ 82.243121][ T5705] path_openat+0xe18/0x2718 [ 82.243819][ T5705] do_filp_open+0x184/0x368 [ 82.244462][ T5705] do_sys_openat2+0x134/0x3f4 [ 82.245359][ T5705] __arm64_sys_openat+0x118/0x14c [ 82.246046][ T5705] invoke_syscall+0x98/0x2b0 [ 82.246709][ T5705] el0_svc_common+0x138/0x258 [ 82.247443][ T5705] do_el0_svc+0x58/0x13c [ 82.248084][ T5705] el0_svc+0x78/0x1d0 [ 82.248692][ T5705] el0t_64_sync_handler+0xcc/0xe4 [ 82.249462][ T5705] el0t_64_sync+0x1a0/0x1a4 [ 82.294476][ T4943] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 12 /dev/loop0 scanned by udevd (4943) [ 82.514113][ T5726] FAULT_INJECTION: forcing a failure. [ 82.514113][ T5726] name failslab, interval 1, probability 0, space 0, times 0 [ 82.516118][ T5726] CPU: 1 PID: 5726 Comm: syz.0.50 Tainted: G W syzkaller #0 [ 82.517400][ T5726] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.518781][ T5726] Call trace: [ 82.519295][ T5726] dump_backtrace+0x0/0x458 [ 82.519939][ T5726] show_stack+0x2c/0x3c [ 82.520520][ T5726] __dump_stack+0x30/0x40 [ 82.521137][ T5726] dump_stack_lvl+0xf4/0x15c [ 82.521807][ T5726] dump_stack+0x1c/0x5c [ 82.522491][ T5726] should_fail+0x3bc/0x514 [ 82.523199][ T5726] __should_failslab+0xbc/0x10c [ 82.523951][ T5726] should_failslab+0x10/0x28 [ 82.524663][ T5726] slab_pre_alloc_hook+0x64/0xe8 [ 82.525401][ T5726] kmem_cache_alloc+0x94/0x3d4 [ 82.526132][ T5726] btrfs_get_or_create_delayed_node+0x114/0x4a8 [ 82.527099][ T5726] btrfs_delayed_update_inode+0x3c/0x1b68 [ 82.527899][ T5726] btrfs_update_inode+0x210/0x3d4 [ 82.528677][ T5726] btrfs_create+0x364/0x514 [ 82.529534][ T5726] path_openat+0xe18/0x2718 [ 82.530271][ T5726] do_filp_open+0x184/0x368 [ 82.531021][ T5726] do_sys_openat2+0x134/0x3f4 [ 82.531704][ T5726] __arm64_sys_openat+0x118/0x14c [ 82.532493][ T5726] invoke_syscall+0x98/0x2b0 [ 82.533203][ T5726] el0_svc_common+0x138/0x258 [ 82.533936][ T5726] do_el0_svc+0x58/0x13c [ 82.534543][ T5726] el0_svc+0x78/0x1d0 [ 82.535091][ T5726] el0t_64_sync_handler+0xcc/0xe4 [ 82.535815][ T5726] el0t_64_sync+0x1a0/0x1a4