Warning: Permanently added '10.128.0.131' (ED25519) to the list of known hosts. 1970/01/01 00:01:25 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:01:25 ignoring optional flag "type"="gce" 1970/01/01 00:01:25 parsed 1 programs [ 88.372148][ T4463] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 95.249876][ T1614] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 95.253379][ T1614] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 95.259079][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 95.266831][ T1614] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 95.269023][ T1614] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 95.272067][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 95.556208][ T4499] chnl_net:caif_netlink_parms(): no params data found [ 95.591163][ T4499] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.593574][ T4499] bridge0: port 1(bridge_slave_0) entered disabled state [ 95.596323][ T4499] device bridge_slave_0 entered promiscuous mode [ 95.603020][ T4499] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.604975][ T4499] bridge0: port 2(bridge_slave_1) entered disabled state [ 95.607647][ T4499] device bridge_slave_1 entered promiscuous mode [ 95.623051][ T4499] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 95.627446][ T4499] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 95.644088][ T4499] team0: Port device team_slave_0 added [ 95.647306][ T4499] team0: Port device team_slave_1 added [ 95.660467][ T4499] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 95.662608][ T4499] 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. [ 95.669947][ T4499] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 95.674590][ T4499] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 95.676411][ T4499] 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. [ 95.683876][ T4499] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 95.743717][ T4499] device hsr_slave_0 entered promiscuous mode [ 95.802128][ T4499] device hsr_slave_1 entered promiscuous mode [ 96.662982][ T4499] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 96.713813][ T4499] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 96.763871][ T4499] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 96.804890][ T4499] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 96.929955][ T4499] 8021q: adding VLAN 0 to HW filter on device bond0 [ 96.945209][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 96.948025][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 96.957161][ T4499] 8021q: adding VLAN 0 to HW filter on device team0 [ 96.961635][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 96.972913][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 96.975521][ T384] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.977577][ T384] bridge0: port 1(bridge_slave_0) entered forwarding state [ 96.980507][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 96.994619][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 96.997646][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 97.002261][ T384] bridge0: port 2(bridge_slave_1) entered blocking state [ 97.004230][ T384] bridge0: port 2(bridge_slave_1) entered forwarding state [ 97.011886][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 97.014696][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 97.033631][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 97.037662][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 97.040544][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 97.051593][ T4499] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 97.061813][ T4499] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 97.072931][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 97.075949][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 97.078686][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 97.081814][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 97.084666][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 97.092956][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 97.104483][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 97.231529][ T4499] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 97.236070][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 97.238294][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 97.250068][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 97.254335][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 97.267673][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 97.270302][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 97.291130][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 97.310250][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 97.335328][ T4499] device veth0_vlan entered promiscuous mode [ 97.342483][ T4499] device veth1_vlan entered promiscuous mode [ 97.361356][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 97.367490][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 97.372836][ T4499] device veth0_macvtap entered promiscuous mode [ 97.378542][ T4499] device veth1_macvtap entered promiscuous mode [ 97.393652][ T4499] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 97.395739][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 97.398530][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 97.401199][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 97.405524][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 97.411603][ T4499] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 97.418723][ T4499] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.421153][ T4499] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.424052][ T4499] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.426377][ T4499] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.430208][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 97.435024][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 1970/01/01 00:01:38 executed programs: 0 [ 98.743544][ T4670] chnl_net:caif_netlink_parms(): no params data found [ 98.779140][ T4670] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.781226][ T4670] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.784952][ T4670] device bridge_slave_0 entered promiscuous mode [ 98.788635][ T4670] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.790710][ T4670] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.793742][ T4670] device bridge_slave_1 entered promiscuous mode [ 98.812584][ T4670] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 98.820081][ T4670] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 98.836269][ T4670] team0: Port device team_slave_0 added [ 98.841361][ T4670] team0: Port device team_slave_1 added [ 98.856317][ T4670] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 98.858256][ T4670] 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. [ 98.865908][ T4670] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 98.870328][ T4670] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 98.874998][ T4670] 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. [ 98.882223][ T4670] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 98.944062][ T4670] device hsr_slave_0 entered promiscuous mode [ 98.972849][ T4670] device hsr_slave_1 entered promiscuous mode [ 99.022095][ T4670] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 99.024182][ T4670] Cannot create hsr debugfs directory [ 99.092598][ T4670] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.652043][ T4585] Bluetooth: hci0: command 0x0409 tx timeout [ 102.539426][ T4670] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 102.742097][ T7] Bluetooth: hci0: command 0x041b tx timeout [ 103.008867][ T4670] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 103.097905][ T4670] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 103.332779][ T4670] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 103.354651][ T4670] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 103.403774][ T4670] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 103.444592][ T4670] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 103.538606][ T4670] 8021q: adding VLAN 0 to HW filter on device bond0 [ 103.545985][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 103.548560][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 103.556562][ T4670] 8021q: adding VLAN 0 to HW filter on device team0 [ 103.561652][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 103.564604][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 103.567054][ T1614] bridge0: port 1(bridge_slave_0) entered blocking state [ 103.568999][ T1614] bridge0: port 1(bridge_slave_0) entered forwarding state [ 103.571357][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 103.577757][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 103.580586][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 103.583888][ T1614] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.585783][ T1614] bridge0: port 2(bridge_slave_1) entered forwarding state [ 103.590481][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 103.596091][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 103.601548][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 103.606394][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 103.609143][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 103.617398][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 103.620183][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 103.626130][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 103.628843][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 103.634068][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 103.636743][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 103.642276][ T4670] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 103.744957][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 103.747256][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 103.753872][ T4670] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 103.766147][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 103.768931][ T1614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 103.784075][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 103.786691][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 103.789527][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 103.794815][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 103.799128][ T4670] device veth0_vlan entered promiscuous mode [ 103.805984][ T4670] device veth1_vlan entered promiscuous mode [ 103.820750][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 103.826043][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 103.828603][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 103.831290][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 103.836515][ T4670] device veth0_macvtap entered promiscuous mode [ 103.840927][ T4670] device veth1_macvtap entered promiscuous mode [ 103.852449][ T4670] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 103.855392][ T4670] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 103.859078][ T4670] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 103.861179][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 103.866171][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 103.868693][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 103.871488][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 103.908490][ T4670] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 103.911427][ T4670] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 103.915294][ T4670] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 103.918158][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 103.921042][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 103.926975][ T4670] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.929437][ T4670] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.931693][ T4670] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.934598][ T4670] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 104.001293][ T1614] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 104.009520][ T1614] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 104.015639][ T384] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 104.017489][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 104.017900][ T384] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 104.025952][ T384] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:44 executed programs: 2 [ 104.262608][ T4890] loop0: detected capacity change from 0 to 32768 [ 104.325065][ T4890] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.15 (4890) [ 104.339813][ T4890] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 104.342924][ T4890] BTRFS info (device loop0): using free space tree [ 104.344624][ T4890] BTRFS info (device loop0): has skinny extents [ 104.374849][ T4890] BTRFS info (device loop0): enabling ssd optimizations [ 104.396490][ T4890] FAULT_INJECTION: forcing a failure. [ 104.396490][ T4890] name failslab, interval 1, probability 0, space 0, times 1 [ 104.400053][ T4890] CPU: 1 PID: 4890 Comm: syz.0.15 Not tainted 5.15.185-syzkaller #0 [ 104.402223][ T4890] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 104.404956][ T4890] Call trace: [ 104.405822][ T4890] dump_backtrace+0x0/0x43c [ 104.407069][ T4890] show_stack+0x2c/0x3c [ 104.408145][ T4890] __dump_stack+0x30/0x40 [ 104.409336][ T4890] dump_stack_lvl+0xf8/0x160 [ 104.410549][ T4890] dump_stack+0x1c/0x5c [ 104.411703][ T4890] should_fail+0x3c0/0x51c [ 104.412949][ T4890] __should_failslab+0xbc/0x10c [ 104.414262][ T4890] should_failslab+0x10/0x28 [ 104.415567][ T4890] slab_pre_alloc_hook+0x64/0xec [ 104.416888][ T4890] kmem_cache_alloc_trace+0x98/0x3fc [ 104.418302][ T4890] btrfs_delete_delayed_dir_index+0x220/0x550 [ 104.419912][ T4890] __btrfs_unlink_inode+0x34c/0xb00 [ 104.421290][ T4890] btrfs_unlink+0x108/0x258 [ 104.422492][ T4890] vfs_unlink+0x2e0/0x4f4 [ 104.423627][ T4890] do_unlinkat+0x31c/0x600 [ 104.424809][ T4890] __arm64_sys_unlinkat+0xe0/0xfc [ 104.426195][ T4890] invoke_syscall+0x98/0x2b8 [ 104.427480][ T4890] el0_svc_common+0x138/0x258 [ 104.428691][ T4890] do_el0_svc+0x58/0x14c [ 104.429878][ T4890] el0_svc+0x78/0x1e0 [ 104.430943][ T4890] el0t_64_sync_handler+0xcc/0xe4 [ 104.432298][ T4890] el0t_64_sync+0x1a0/0x1a4 [ 104.438708][ T4890] ------------[ cut here ]------------ [ 104.440417][ T4890] WARNING: CPU: 1 PID: 4890 at fs/btrfs/inode.c:4167 __btrfs_unlink_inode+0x908/0xb00 [ 104.442978][ T4890] Modules linked in: [ 104.444052][ T4890] CPU: 1 PID: 4890 Comm: syz.0.15 Not tainted 5.15.185-syzkaller #0 [ 104.446186][ T4890] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 104.448938][ T4890] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 104.451052][ T4890] pc : __btrfs_unlink_inode+0x908/0xb00 [ 104.452592][ T4890] lr : __btrfs_unlink_inode+0x908/0xb00 [ 104.454134][ T4890] sp : ffff80001f6e7a60 [ 104.455249][ T4890] x29: ffff80001f6e7b10 x28: ffff0000d04fa000 x27: ffff0000e1ebc010 [ 104.457422][ T4890] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cd285f20 [ 104.459585][ T4890] x23: 1ffff00003edcf54 x22: dfff800000000000 x21: ffff0000ec1213a0 [ 104.461775][ T4890] x20: ffff0000de1a3108 x19: 1fffe0001bc34621 x18: 0000000000000001 [ 104.464007][ T4890] x17: 0000000000000000 x16: ffff8000111a97c4 x15: 00000000ffffffff [ 104.466201][ T4890] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 104.468373][ T4890] x11: 0000000000000000 x10: 0000000000000000 x9 : ef9b8608433f8700 [ 104.470622][ T4890] x8 : ef9b8608433f8700 x7 : 0000000000000001 x6 : 0000000000000001 [ 104.472824][ T4890] x5 : ffff80001f6e7358 x4 : ffff80001423f280 x3 : ffff800008503958 [ 104.475012][ T4890] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 104.477210][ T4890] Call trace: [ 104.478093][ T4890] __btrfs_unlink_inode+0x908/0xb00 [ 104.479503][ T4890] btrfs_unlink+0x108/0x258 [ 104.480687][ T4890] vfs_unlink+0x2e0/0x4f4 [ 104.481896][ T4890] do_unlinkat+0x31c/0x600 [ 104.483077][ T4890] __arm64_sys_unlinkat+0xe0/0xfc [ 104.484440][ T4890] invoke_syscall+0x98/0x2b8 [ 104.485630][ T4890] el0_svc_common+0x138/0x258 [ 104.486979][ T4890] do_el0_svc+0x58/0x14c [ 104.488132][ T4890] el0_svc+0x78/0x1e0 [ 104.489246][ T4890] el0t_64_sync_handler+0xcc/0xe4 [ 104.490647][ T4890] el0t_64_sync+0x1a0/0x1a4 [ 104.491862][ T4890] irq event stamp: 82784 [ 104.492993][ T4890] hardirqs last enabled at (82783): [] __up_console_sem+0xb4/0x100 [ 104.495554][ T4890] hardirqs last disabled at (82784): [] el1_dbg+0x24/0x80 [ 104.497906][ T4890] softirqs last enabled at (82764): [] handle_softirqs+0xa4c/0xbf0 [ 104.500498][ T4890] softirqs last disabled at (82645): [] __irq_exit_rcu+0x240/0x440 [ 104.503089][ T4890] ---[ end trace 187b209142460ce0 ]--- [ 104.507169][ T4890] BTRFS: error (device loop0) in __btrfs_unlink_inode:4167: errno=-12 Out of memory [ 104.510607][ T4890] BTRFS info (device loop0): forced readonly [ 104.813935][ T4140] Bluetooth: hci0: command 0x040f tx timeout [ 104.839388][ T4912] loop0: detected capacity change from 0 to 32768 [ 104.876559][ T4912] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.16 (4912) [ 104.885700][ T4912] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 104.888161][ T4912] BTRFS info (device loop0): using free space tree [ 104.889960][ T4912] BTRFS info (device loop0): has skinny extents [ 104.913815][ T4912] BTRFS info (device loop0): enabling ssd optimizations [ 104.926396][ T4912] FAULT_INJECTION: forcing a failure. [ 104.926396][ T4912] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 104.930197][ T4912] CPU: 1 PID: 4912 Comm: syz.0.16 Tainted: G W 5.15.185-syzkaller #0 [ 104.932734][ T4912] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 104.935440][ T4912] Call trace: [ 104.936399][ T4912] dump_backtrace+0x0/0x43c [ 104.937617][ T4912] show_stack+0x2c/0x3c [ 104.938767][ T4912] __dump_stack+0x30/0x40 [ 104.939965][ T4912] dump_stack_lvl+0xf8/0x160 [ 104.941195][ T4912] dump_stack+0x1c/0x5c [ 104.942311][ T4912] should_fail+0x3c0/0x51c [ 104.943483][ T4912] should_fail_alloc_page+0x74/0xa8 [ 104.944913][ T4912] prepare_alloc_pages+0x160/0x460 [ 104.946287][ T4912] __alloc_pages+0x108/0x470 [ 104.947507][ T4912] alloc_pages+0x34c/0x5c0 [ 104.948684][ T4912] new_slab+0xe0/0x55c [ 104.949805][ T4912] ___slab_alloc+0x6c0/0xda8 [ 104.951054][ T4912] __slab_alloc+0x68/0xc0 [ 104.952221][ T4912] kmem_cache_alloc+0x2ac/0x3e4 [ 104.953509][ T4912] btrfs_alloc_path+0x5c/0x68 [ 104.954751][ T4912] __btrfs_unlink_inode+0x1d8/0xb00 [ 104.956189][ T4912] btrfs_unlink+0x108/0x258 [ 104.957392][ T4912] vfs_unlink+0x2e0/0x4f4 [ 104.958519][ T4912] do_unlinkat+0x31c/0x600 [ 104.959763][ T4912] __arm64_sys_unlinkat+0xe0/0xfc [ 104.961100][ T4912] invoke_syscall+0x98/0x2b8 [ 104.962308][ T4912] el0_svc_common+0x138/0x258 [ 104.963533][ T4912] do_el0_svc+0x58/0x14c [ 104.964685][ T4912] el0_svc+0x78/0x1e0 [ 104.965735][ T4912] el0t_64_sync_handler+0xcc/0xe4 [ 104.967110][ T4912] el0t_64_sync+0x1a0/0x1a4 [ 105.364523][ T4937] loop0: detected capacity change from 0 to 32768 [ 105.376625][ T4937] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.17 (4937) [ 105.383038][ T4937] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 105.385558][ T4937] BTRFS info (device loop0): using free space tree [ 105.391834][ T4937] BTRFS info (device loop0): has skinny extents [ 105.407765][ T4937] BTRFS info (device loop0): enabling ssd optimizations [ 105.416675][ T4937] FAULT_INJECTION: forcing a failure. [ 105.416675][ T4937] name failslab, interval 1, probability 0, space 0, times 0 [ 105.420132][ T4937] CPU: 0 PID: 4937 Comm: syz.0.17 Tainted: G W 5.15.185-syzkaller #0 [ 105.422730][ T4937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 105.425494][ T4937] Call trace: [ 105.426338][ T4937] dump_backtrace+0x0/0x43c [ 105.427614][ T4937] show_stack+0x2c/0x3c [ 105.428800][ T4937] __dump_stack+0x30/0x40 [ 105.429974][ T4937] dump_stack_lvl+0xf8/0x160 [ 105.431254][ T4937] dump_stack+0x1c/0x5c [ 105.432415][ T4937] should_fail+0x3c0/0x51c [ 105.433560][ T4937] __should_failslab+0xbc/0x10c [ 105.434933][ T4937] should_failslab+0x10/0x28 [ 105.436319][ T4937] slab_pre_alloc_hook+0x64/0xec [ 105.437662][ T4937] kmem_cache_alloc_trace+0x98/0x3fc [ 105.439097][ T4937] btrfs_delete_delayed_dir_index+0x220/0x550 [ 105.440778][ T4937] __btrfs_unlink_inode+0x34c/0xb00 [ 105.442204][ T4937] btrfs_unlink+0x108/0x258 [ 105.443397][ T4937] vfs_unlink+0x2e0/0x4f4 [ 105.444622][ T4937] do_unlinkat+0x31c/0x600 [ 105.445842][ T4937] __arm64_sys_unlinkat+0xe0/0xfc [ 105.447266][ T4937] invoke_syscall+0x98/0x2b8 [ 105.448500][ T4937] el0_svc_common+0x138/0x258 [ 105.449835][ T4937] do_el0_svc+0x58/0x14c [ 105.450973][ T4937] el0_svc+0x78/0x1e0 [ 105.452122][ T4937] el0t_64_sync_handler+0xcc/0xe4 [ 105.453477][ T4937] el0t_64_sync+0x1a0/0x1a4 [ 105.460408][ T4937] ------------[ cut here ]------------ [ 105.462235][ T4937] WARNING: CPU: 0 PID: 4937 at fs/btrfs/inode.c:4167 __btrfs_unlink_inode+0x908/0xb00 [ 105.464837][ T4937] Modules linked in: [ 105.465930][ T4937] CPU: 0 PID: 4937 Comm: syz.0.17 Tainted: G W 5.15.185-syzkaller #0 [ 105.468565][ T4937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 105.471270][ T4937] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 105.473427][ T4937] pc : __btrfs_unlink_inode+0x908/0xb00 [ 105.474912][ T4937] lr : __btrfs_unlink_inode+0x908/0xb00 [ 105.476408][ T4937] sp : ffff80001faf7a60 [ 105.477456][ T4937] x29: ffff80001faf7b10 x28: ffff0000c1580000 x27: ffff0000ec104010 [ 105.479610][ T4937] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d2b75f20 [ 105.481742][ T4937] x23: 1ffff00003f5ef54 x22: dfff800000000000 x21: ffff0000e1eb09d0 [ 105.483860][ T4937] x20: ffff0000de31e108 x19: 1fffe0001bc63c21 x18: 0000000000000001 [ 105.486024][ T4937] x17: 0000000000000000 x16: ffff8000111a97c4 x15: 00000000ffffffff [ 105.488212][ T4937] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 105.490328][ T4937] x11: 0000000000000000 x10: 0000000000000000 x9 : 380d40fd3d31a000 [ 105.492491][ T4937] x8 : 380d40fd3d31a000 x7 : 0000000000000001 x6 : 0000000000000001 [ 105.494617][ T4937] x5 : ffff80001faf7358 x4 : ffff80001423f280 x3 : ffff800008503958 [ 105.496763][ T4937] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 105.498942][ T4937] Call trace: [ 105.499837][ T4937] __btrfs_unlink_inode+0x908/0xb00 [ 105.501314][ T4937] btrfs_unlink+0x108/0x258 [ 105.502512][ T4937] vfs_unlink+0x2e0/0x4f4 [ 105.503657][ T4937] do_unlinkat+0x31c/0x600 [ 105.504885][ T4937] __arm64_sys_unlinkat+0xe0/0xfc [ 105.506263][ T4937] invoke_syscall+0x98/0x2b8 [ 105.507548][ T4937] el0_svc_common+0x138/0x258 [ 105.508826][ T4937] do_el0_svc+0x58/0x14c [ 105.509937][ T4937] el0_svc+0x78/0x1e0 [ 105.511031][ T4937] el0t_64_sync_handler+0xcc/0xe4 [ 105.512418][ T4937] el0t_64_sync+0x1a0/0x1a4 [ 105.513642][ T4937] irq event stamp: 81436 [ 105.514783][ T4937] hardirqs last enabled at (81435): [] __up_console_sem+0xb4/0x100 [ 105.517344][ T4937] hardirqs last disabled at (81436): [] el1_dbg+0x24/0x80 [ 105.519911][ T4937] softirqs last enabled at (81426): [] handle_softirqs+0xa4c/0xbf0 [ 105.522601][ T4937] softirqs last disabled at (81419): [] __irq_exit_rcu+0x240/0x440 [ 105.525312][ T4937] ---[ end trace 187b209142460ce1 ]--- [ 105.529566][ T4937] BTRFS: error (device loop0) in __btrfs_unlink_inode:4167: errno=-12 Out of memory [ 105.532865][ T4937] BTRFS info (device loop0): forced readonly [ 105.641985][ T4625] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by udevd (4625) [ 105.818987][ T4958] loop0: detected capacity change from 0 to 32768 [ 105.947539][ T4958] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 105.950088][ T4958] BTRFS info (device loop0): using free space tree [ 105.954700][ T4958] BTRFS info (device loop0): has skinny extents [ 105.970273][ T4958] BTRFS info (device loop0): enabling ssd optimizations [ 105.979836][ T4958] FAULT_INJECTION: forcing a failure. [ 105.979836][ T4958] name failslab, interval 1, probability 0, space 0, times 0 [ 105.983362][ T4958] CPU: 1 PID: 4958 Comm: syz.0.18 Tainted: G W 5.15.185-syzkaller #0 [ 105.985993][ T4958] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 105.988750][ T4958] Call trace: [ 105.989660][ T4958] dump_backtrace+0x0/0x43c [ 105.990917][ T4958] show_stack+0x2c/0x3c [ 105.992119][ T4958] __dump_stack+0x30/0x40 [ 105.993279][ T4958] dump_stack_lvl+0xf8/0x160 [ 105.994522][ T4958] dump_stack+0x1c/0x5c [ 105.995589][ T4958] should_fail+0x3c0/0x51c [ 105.996733][ T4958] __should_failslab+0xbc/0x10c [ 105.998097][ T4958] should_failslab+0x10/0x28 [ 105.999321][ T4958] slab_pre_alloc_hook+0x64/0xec [ 106.000667][ T4958] kmem_cache_alloc+0x94/0x3e4 [ 106.001989][ T4958] btrfs_alloc_path+0x5c/0x68 [ 106.003228][ T4958] __btrfs_unlink_inode+0x1d8/0xb00 [ 106.004654][ T4958] btrfs_unlink+0x108/0x258 [ 106.005881][ T4958] vfs_unlink+0x2e0/0x4f4 [ 106.007054][ T4958] do_unlinkat+0x31c/0x600 [ 106.008224][ T4958] __arm64_sys_unlinkat+0xe0/0xfc [ 106.009577][ T4958] invoke_syscall+0x98/0x2b8 [ 106.010846][ T4958] el0_svc_common+0x138/0x258 [ 106.012174][ T4958] do_el0_svc+0x58/0x14c [ 106.013293][ T4958] el0_svc+0x78/0x1e0 [ 106.014368][ T4958] el0t_64_sync_handler+0xcc/0xe4 [ 106.015710][ T4958] el0t_64_sync+0x1a0/0x1a4 [ 106.209485][ T153] device hsr_slave_0 left promiscuous mode [ 106.266136][ T153] device hsr_slave_1 left promiscuous mode [ 106.311682][ T4981] loop0: detected capacity change from 0 to 32768 [ 106.353674][ T4981] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.19 (4981) [ 106.371935][ T153] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 106.374156][ T153] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 106.376739][ T153] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 106.378747][ T153] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 106.381197][ T153] device bridge_slave_1 left promiscuous mode [ 106.383427][ T153] bridge0: port 2(bridge_slave_1) entered disabled state [ 106.397816][ T4981] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 106.400442][ T4981] BTRFS info (device loop0): using free space tree [ 106.404879][ T4981] BTRFS info (device loop0): has skinny extents [ 106.422990][ T153] device bridge_slave_0 left promiscuous mode [ 106.424744][ T153] bridge0: port 1(bridge_slave_0) entered disabled state [ 106.437600][ T4981] BTRFS info (device loop0): enabling ssd optimizations [ 106.447190][ T4981] FAULT_INJECTION: forcing a failure. [ 106.447190][ T4981] name failslab, interval 1, probability 0, space 0, times 0 [ 106.450590][ T4981] CPU: 1 PID: 4981 Comm: syz.0.19 Tainted: G W 5.15.185-syzkaller #0 [ 106.453090][ T4981] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 106.455825][ T4981] Call trace: [ 106.456719][ T4981] dump_backtrace+0x0/0x43c [ 106.458007][ T4981] show_stack+0x2c/0x3c [ 106.459144][ T4981] __dump_stack+0x30/0x40 [ 106.460369][ T4981] dump_stack_lvl+0xf8/0x160 [ 106.461605][ T4981] dump_stack+0x1c/0x5c [ 106.462748][ T4981] should_fail+0x3c0/0x51c [ 106.464009][ T4981] __should_failslab+0xbc/0x10c [ 106.465292][ T4981] should_failslab+0x10/0x28 [ 106.466518][ T4981] slab_pre_alloc_hook+0x64/0xec [ 106.467928][ T4981] kmem_cache_alloc_trace+0x98/0x3fc [ 106.469319][ T4981] btrfs_delete_delayed_dir_index+0x220/0x550 [ 106.471014][ T4981] __btrfs_unlink_inode+0x34c/0xb00 [ 106.472459][ T4981] btrfs_unlink+0x108/0x258 [ 106.473678][ T4981] vfs_unlink+0x2e0/0x4f4 [ 106.474877][ T4981] do_unlinkat+0x31c/0x600 [ 106.476087][ T4981] __arm64_sys_unlinkat+0xe0/0xfc [ 106.477435][ T4981] invoke_syscall+0x98/0x2b8 [ 106.478662][ T4981] el0_svc_common+0x138/0x258 [ 106.479972][ T4981] do_el0_svc+0x58/0x14c [ 106.481136][ T4981] el0_svc+0x78/0x1e0 [ 106.482187][ T4981] el0t_64_sync_handler+0xcc/0xe4 [ 106.483601][ T4981] el0t_64_sync+0x1a0/0x1a4 [ 106.487893][ T4981] ------------[ cut here ]------------ [ 106.490926][ T4981] WARNING: CPU: 1 PID: 4981 at fs/btrfs/inode.c:4167 __btrfs_unlink_inode+0x908/0xb00 [ 106.493566][ T4981] Modules linked in: [ 106.494621][ T4981] CPU: 1 PID: 4981 Comm: syz.0.19 Tainted: G W 5.15.185-syzkaller #0 [ 106.497114][ T4981] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 106.499906][ T4981] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 106.502070][ T4981] pc : __btrfs_unlink_inode+0x908/0xb00 [ 106.503524][ T4981] lr : __btrfs_unlink_inode+0x908/0xb00 [ 106.504981][ T4981] sp : ffff8000200b7a60 [ 106.506179][ T4981] x29: ffff8000200b7b10 x28: ffff0000c864e000 x27: ffff0000e1ebcc10 [ 106.508408][ T4981] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c6cb3210 [ 106.510587][ T4981] x23: 1ffff00004016f54 x22: dfff800000000000 x21: ffff0000e1f813a0 [ 106.512841][ T4981] x20: ffff0000de1a3898 x19: 1fffe0001bc34713 x18: 0000000000000001 [ 106.515021][ T4981] x17: 0000000000000000 x16: ffff8000111a97c4 x15: 00000000ffffffff [ 106.517211][ T4981] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 106.519359][ T4981] x11: 0000000000000000 x10: 0000000000000000 x9 : fbc26f438aa6af00 [ 106.521577][ T4981] x8 : fbc26f438aa6af00 x7 : 0000000000000001 x6 : 0000000000000001 [ 106.523795][ T4981] x5 : ffff8000200b7358 x4 : ffff80001423f280 x3 : ffff800008503958 [ 106.526033][ T4981] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 106.528192][ T4981] Call trace: [ 106.529093][ T4981] __btrfs_unlink_inode+0x908/0xb00 [ 106.530574][ T4981] btrfs_unlink+0x108/0x258 [ 106.531808][ T4981] vfs_unlink+0x2e0/0x4f4 [ 106.533008][ T4981] do_unlinkat+0x31c/0x600 [ 106.534240][ T4981] __arm64_sys_unlinkat+0xe0/0xfc [ 106.535603][ T4981] invoke_syscall+0x98/0x2b8 [ 106.536812][ T4981] el0_svc_common+0x138/0x258 [ 106.538284][ T4981] do_el0_svc+0x58/0x14c [ 106.539474][ T4981] el0_svc+0x78/0x1e0 [ 106.540509][ T4981] el0t_64_sync_handler+0xcc/0xe4 [ 106.541899][ T4981] el0t_64_sync+0x1a0/0x1a4 [ 106.543144][ T4981] irq event stamp: 80648 [ 106.544318][ T4981] hardirqs last enabled at (80647): [] __up_console_sem+0xb4/0x100 [ 106.546910][ T4981] hardirqs last disabled at (80648): [] el1_dbg+0x24/0x80 [ 106.549248][ T4981] softirqs last enabled at (80622): [] handle_softirqs+0xa4c/0xbf0 [ 106.551843][ T4981] softirqs last disabled at (80601): [] __irq_exit_rcu+0x240/0x440 [ 106.554433][ T4981] ---[ end trace 187b209142460ce2 ]--- [ 106.557323][ T4981] BTRFS: error (device loop0) in __btrfs_unlink_inode:4167: errno=-12 Out of memory [ 106.560931][ T4981] BTRFS info (device loop0): forced readonly [ 106.633916][ T153] device veth1_macvtap left promiscuous mode [ 106.635737][ T153] device veth0_macvtap left promiscuous mode [ 106.637566][ T153] device veth1_vlan left promiscuous mode [ 106.639230][ T153] device veth0_vlan left promiscuous mode [ 106.869625][ T5003] loop0: detected capacity change from 0 to 32768 [ 106.902089][ T3610] Bluetooth: hci0: command 0x0419 tx timeout [ 106.905280][ T5003] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.20 (5003) [ 106.911562][ T5003] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 106.915708][ T5003] BTRFS info (device loop0): using free space tree [ 106.917471][ T5003] BTRFS info (device loop0): has skinny extents [ 106.934420][ T5003] BTRFS info (device loop0): enabling ssd optimizations [ 106.941645][ T5003] FAULT_INJECTION: forcing a failure. [ 106.941645][ T5003] name failslab, interval 1, probability 0, space 0, times 0 [ 106.945635][ T5003] CPU: 1 PID: 5003 Comm: syz.0.20 Tainted: G W 5.15.185-syzkaller #0 [ 106.948252][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 106.950930][ T5003] Call trace: [ 106.951803][ T5003] dump_backtrace+0x0/0x43c [ 106.953042][ T5003] show_stack+0x2c/0x3c [ 106.954231][ T5003] __dump_stack+0x30/0x40 [ 106.955393][ T5003] dump_stack_lvl+0xf8/0x160 [ 106.956637][ T5003] dump_stack+0x1c/0x5c [ 106.957797][ T5003] should_fail+0x3c0/0x51c [ 106.958981][ T5003] __should_failslab+0xbc/0x10c [ 106.960264][ T5003] should_failslab+0x10/0x28 [ 106.961512][ T5003] slab_pre_alloc_hook+0x64/0xec [ 106.962849][ T5003] kmem_cache_alloc_trace+0x98/0x3fc [ 106.964273][ T5003] btrfs_delete_delayed_dir_index+0x220/0x550 [ 106.965864][ T5003] __btrfs_unlink_inode+0x34c/0xb00 [ 106.967304][ T5003] btrfs_unlink+0x108/0x258 [ 106.968460][ T5003] vfs_unlink+0x2e0/0x4f4 [ 106.969651][ T5003] do_unlinkat+0x31c/0x600 [ 106.970845][ T5003] __arm64_sys_unlinkat+0xe0/0xfc [ 106.972157][ T5003] invoke_syscall+0x98/0x2b8 [ 106.973481][ T5003] el0_svc_common+0x138/0x258 [ 106.974725][ T5003] do_el0_svc+0x58/0x14c [ 106.975859][ T5003] el0_svc+0x78/0x1e0 [ 106.976945][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 106.978293][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 106.981792][ T5003] ------------[ cut here ]------------ [ 106.983469][ T5003] WARNING: CPU: 1 PID: 5003 at fs/btrfs/inode.c:4167 __btrfs_unlink_inode+0x908/0xb00 [ 106.986055][ T5003] Modules linked in: [ 106.987081][ T5003] CPU: 1 PID: 5003 Comm: syz.0.20 Tainted: G W 5.15.185-syzkaller #0 [ 106.989649][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 106.992411][ T5003] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 106.994536][ T5003] pc : __btrfs_unlink_inode+0x908/0xb00 [ 106.996011][ T5003] lr : __btrfs_unlink_inode+0x908/0xb00 [ 106.997502][ T5003] sp : ffff80001fee7a60 [ 106.998597][ T5003] x29: ffff80001fee7b10 x28: ffff0000d1be4000 x27: ffff0000e1ebd010 [ 107.000760][ T5003] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ede66160 [ 107.002898][ T5003] x23: 1ffff00003fdcf54 x22: dfff800000000000 x21: ffff0000e1f83ae0 [ 107.005060][ T5003] x20: ffff0000de1a39f8 x19: 1fffe0001bc3473f x18: 0000000000000001 [ 107.007215][ T5003] x17: 0000000000000000 x16: ffff8000111a97c4 x15: 00000000ffffffff [ 107.009360][ T5003] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 107.011497][ T5003] x11: 0000000000000000 x10: 0000000000000000 x9 : 4ce1d294f1c60600 [ 107.013692][ T5003] x8 : 4ce1d294f1c60600 x7 : 0000000000000001 x6 : 0000000000000001 [ 107.015878][ T5003] x5 : ffff80001fee7358 x4 : ffff80001423f280 x3 : ffff800008503958 [ 107.018140][ T5003] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 107.020393][ T5003] Call trace: [ 107.021280][ T5003] __btrfs_unlink_inode+0x908/0xb00 [ 107.022672][ T5003] btrfs_unlink+0x108/0x258 [ 107.023883][ T5003] vfs_unlink+0x2e0/0x4f4 [ 107.024989][ T5003] do_unlinkat+0x31c/0x600 [ 107.026182][ T5003] __arm64_sys_unlinkat+0xe0/0xfc [ 107.027507][ T5003] invoke_syscall+0x98/0x2b8 [ 107.028725][ T5003] el0_svc_common+0x138/0x258 [ 107.029987][ T5003] do_el0_svc+0x58/0x14c [ 107.031201][ T5003] el0_svc+0x78/0x1e0 [ 107.032264][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 107.033636][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 107.034902][ T5003] irq event stamp: 81056 [ 107.036021][ T5003] hardirqs last enabled at (81055): [] __up_console_sem+0xb4/0x100 [ 107.038627][ T5003] hardirqs last disabled at (81056): [] el1_dbg+0x24/0x80 [ 107.040985][ T5003] softirqs last enabled at (81036): [] handle_softirqs+0xa4c/0xbf0 [ 107.043543][ T5003] softirqs last disabled at (81013): [] __irq_exit_rcu+0x240/0x440 [ 107.046007][ T5003] ---[ end trace 187b209142460ce3 ]--- [ 107.050578][ T5003] BTRFS: error (device loop0) in __btrfs_unlink_inode:4167: errno=-12 Out of memory [ 107.053757][ T5003] BTRFS info (device loop0): forced readonly [ 107.176514][ T153] team0 (unregistering): Port device team_slave_1 removed [ 107.190167][ T153] team0 (unregistering): Port device team_slave_0 removed [ 107.222559][ T153] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 107.270587][ T153] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 107.324692][ T5028] loop0: detected capacity change from 0 to 32768 [ 107.328915][ T5028] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.21 (5028) [ 107.336584][ T5028] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 107.339000][ T5028] BTRFS info (device loop0): using free space tree [ 107.341056][ T5028] BTRFS info (device loop0): has skinny extents [ 107.396456][ T5028] BTRFS info (device loop0): enabling ssd optimizations [ 107.410861][ T153] bond0 (unregistering): Released all slaves [ 107.416318][ T5028] FAULT_INJECTION: forcing a failure. [ 107.416318][ T5028] name failslab, interval 1, probability 0, space 0, times 0 [ 107.419645][ T5028] CPU: 1 PID: 5028 Comm: syz.0.21 Tainted: G W 5.15.185-syzkaller #0 [ 107.422171][ T5028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.424880][ T5028] Call trace: [ 107.425692][ T5028] dump_backtrace+0x0/0x43c [ 107.426858][ T5028] show_stack+0x2c/0x3c [ 107.428014][ T5028] __dump_stack+0x30/0x40 [ 107.429148][ T5028] dump_stack_lvl+0xf8/0x160 [ 107.430448][ T5028] dump_stack+0x1c/0x5c [ 107.431546][ T5028] should_fail+0x3c0/0x51c [ 107.432653][ T5028] __should_failslab+0xbc/0x10c [ 107.433933][ T5028] should_failslab+0x10/0x28 [ 107.435137][ T5028] slab_pre_alloc_hook+0x64/0xec [ 107.436537][ T5028] kmem_cache_alloc_trace+0x98/0x3fc [ 107.437913][ T5028] btrfs_delete_delayed_dir_index+0x220/0x550 [ 107.439534][ T5028] __btrfs_unlink_inode+0x34c/0xb00 [ 107.440944][ T5028] btrfs_unlink+0x108/0x258 [ 107.442125][ T5028] vfs_unlink+0x2e0/0x4f4 [ 107.443221][ T5028] do_unlinkat+0x31c/0x600 [ 107.444393][ T5028] __arm64_sys_unlinkat+0xe0/0xfc [ 107.445676][ T5028] invoke_syscall+0x98/0x2b8 [ 107.446890][ T5028] el0_svc_common+0x138/0x258 [ 107.448116][ T5028] do_el0_svc+0x58/0x14c [ 107.449284][ T5028] el0_svc+0x78/0x1e0 [ 107.450362][ T5028] el0t_64_sync_handler+0xcc/0xe4 [ 107.451688][ T5028] el0t_64_sync+0x1a0/0x1a4 [ 107.455497][ T5028] ------------[ cut here ]------------ [ 107.457348][ T5028] WARNING: CPU: 0 PID: 5028 at fs/btrfs/inode.c:4167 __btrfs_unlink_inode+0x908/0xb00 [ 107.459950][ T5028] Modules linked in: [ 107.461016][ T5028] CPU: 0 PID: 5028 Comm: syz.0.21 Tainted: G W 5.15.185-syzkaller #0 [ 107.463463][ T5028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.466311][ T5028] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 107.468435][ T5028] pc : __btrfs_unlink_inode+0x908/0xb00 [ 107.469927][ T5028] lr : __btrfs_unlink_inode+0x908/0xb00 [ 107.471415][ T5028] sp : ffff8000201d7a60 [ 107.472552][ T5028] x29: ffff8000201d7b10 x28: ffff0000db49e000 x27: ffff0000e1ebd410 [ 107.474752][ T5028] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ca793210 [ 107.476893][ T5028] x23: 1ffff0000403af54 x22: dfff800000000000 x21: ffff0000e1f86220 [ 107.479041][ T5028] x20: ffff0000de1a3b58 x19: 1fffe0001bc3476b x18: 0000000000000001 [ 107.481253][ T5028] x17: 0000000000000000 x16: ffff8000111a97c4 x15: 00000000ffffffff [ 107.483456][ T5028] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 107.485731][ T5028] x11: 0000000000000000 x10: 0000000000000000 x9 : 82e4d4a5534c7800 [ 107.487929][ T5028] x8 : 82e4d4a5534c7800 x7 : 0000000000000001 x6 : 0000000000000001 [ 107.490166][ T5028] x5 : ffff8000201d7358 x4 : ffff80001423f280 x3 : ffff800008503958 [ 107.492364][ T5028] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 107.494622][ T5028] Call trace: [ 107.495510][ T5028] __btrfs_unlink_inode+0x908/0xb00 [ 107.496975][ T5028] btrfs_unlink+0x108/0x258 [ 107.498202][ T5028] vfs_unlink+0x2e0/0x4f4 [ 107.499404][ T5028] do_unlinkat+0x31c/0x600 [ 107.500609][ T5028] __arm64_sys_unlinkat+0xe0/0xfc [ 107.502007][ T5028] invoke_syscall+0x98/0x2b8 [ 107.503255][ T5028] el0_svc_common+0x138/0x258 [ 107.504556][ T5028] do_el0_svc+0x58/0x14c [ 107.505752][ T5028] el0_svc+0x78/0x1e0 [ 107.506882][ T5028] el0t_64_sync_handler+0xcc/0xe4 [ 107.508213][ T5028] el0t_64_sync+0x1a0/0x1a4 [ 107.509457][ T5028] irq event stamp: 81598 [ 107.510589][ T5028] hardirqs last enabled at (81597): [] __up_console_sem+0xb4/0x100 [ 107.513213][ T5028] hardirqs last disabled at (81598): [] el1_dbg+0x24/0x80 [ 107.515669][ T5028] softirqs last enabled at (81574): [] handle_softirqs+0xa4c/0xbf0 [ 107.518267][ T5028] softirqs last disabled at (81497): [] __irq_exit_rcu+0x240/0x440 [ 107.520842][ T5028] ---[ end trace 187b209142460ce4 ]--- [ 107.523455][ T5028] BTRFS: error (device loop0) in __btrfs_unlink_inode:4167: errno=-12 Out of memory [ 107.526021][ T5028] BTRFS info (device loop0): forced readonly [ 107.940808][ T5050] loop0: detected capacity change from 0 to 32768 [ 107.967463][ T5050] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.22 (5050) [ 107.975876][ T5050] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 107.978297][ T5050] BTRFS info (device loop0): using free space tree [ 107.980048][ T5050] BTRFS info (device loop0): has skinny extents [ 108.011498][ T5050] BTRFS info (device loop0): enabling ssd optimizations [ 108.025229][ T5050] FAULT_INJECTION: forcing a failure. [ 108.025229][ T5050] name failslab, interval 1, probability 0, space 0, times 0 [ 108.028713][ T5050] CPU: 1 PID: 5050 Comm: syz.0.22 Tainted: G W 5.15.185-syzkaller #0 [ 108.031288][ T5050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.034026][ T5050] Call trace: [ 108.034932][ T5050] dump_backtrace+0x0/0x43c [ 108.036119][ T5050] show_stack+0x2c/0x3c [ 108.037240][ T5050] __dump_stack+0x30/0x40 [ 108.038436][ T5050] dump_stack_lvl+0xf8/0x160 [ 108.039597][ T5050] dump_stack+0x1c/0x5c [ 108.040729][ T5050] should_fail+0x3c0/0x51c [ 108.041888][ T5050] __should_failslab+0xbc/0x10c [ 108.043171][ T5050] should_failslab+0x10/0x28 [ 108.044405][ T5050] slab_pre_alloc_hook+0x64/0xec [ 108.045713][ T5050] kmem_cache_alloc_trace+0x98/0x3fc [ 108.047088][ T5050] btrfs_delete_delayed_dir_index+0x220/0x550 [ 108.048783][ T5050] __btrfs_unlink_inode+0x34c/0xb00 [ 108.050147][ T5050] btrfs_unlink+0x108/0x258 [ 108.051341][ T5050] vfs_unlink+0x2e0/0x4f4 [ 108.052535][ T5050] do_unlinkat+0x31c/0x600 [ 108.053702][ T5050] __arm64_sys_unlinkat+0xe0/0xfc [ 108.055060][ T5050] invoke_syscall+0x98/0x2b8 [ 108.056270][ T5050] el0_svc_common+0x138/0x258 [ 108.057576][ T5050] do_el0_svc+0x58/0x14c [ 108.058751][ T5050] el0_svc+0x78/0x1e0 [ 108.059845][ T5050] el0t_64_sync_handler+0xcc/0xe4 [ 108.061204][ T5050] el0t_64_sync+0x1a0/0x1a4 [ 108.073106][ T5050] ------------[ cut here ]------------ [ 108.074893][ T5050] WARNING: CPU: 1 PID: 5050 at fs/btrfs/inode.c:4167 __btrfs_unlink_inode+0x908/0xb00 [ 108.077486][ T5050] Modules linked in: [ 108.078553][ T5050] CPU: 1 PID: 5050 Comm: syz.0.22 Tainted: G W 5.15.185-syzkaller #0 [ 108.081115][ T5050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.083814][ T5050] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 108.085900][ T5050] pc : __btrfs_unlink_inode+0x908/0xb00 [ 108.087417][ T5050] lr : __btrfs_unlink_inode+0x908/0xb00 [ 108.088901][ T5050] sp : ffff800020347a60 [ 108.090021][ T5050] x29: ffff800020347b10 x28: ffff0000d11c8000 x27: ffff0000e1ebd810 [ 108.092165][ T5050] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d51fb370 [ 108.094351][ T5050] x23: 1ffff00004068f54 x22: dfff800000000000 x21: ffff0000e1d88000 [ 108.096551][ T5050] x20: ffff0000de1a3cb8 x19: 1fffe0001bc34797 x18: 0000000000000001 [ 108.098774][ T5050] x17: 0000000000000000 x16: ffff8000111a97c4 x15: 00000000ffffffff [ 108.100955][ T5050] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 108.103162][ T5050] x11: 0000000000000000 x10: 0000000000000000 x9 : af4fe82a56e56500 [ 108.105334][ T5050] x8 : af4fe82a56e56500 x7 : 0000000000000001 x6 : 0000000000000001 [ 108.107524][ T5050] x5 : ffff800020347358 x4 : ffff80001423f280 x3 : ffff800008503958 [ 108.109725][ T5050] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 108.111968][ T5050] Call trace: [ 108.112856][ T5050] __btrfs_unlink_inode+0x908/0xb00 [ 108.114299][ T5050] btrfs_unlink+0x108/0x258 [ 108.115560][ T5050] vfs_unlink+0x2e0/0x4f4 [ 108.116737][ T5050] do_unlinkat+0x31c/0x600 [ 108.117960][ T5050] __arm64_sys_unlinkat+0xe0/0xfc [ 108.119299][ T5050] invoke_syscall+0x98/0x2b8 [ 108.120587][ T5050] el0_svc_common+0x138/0x258 [ 108.121898][ T5050] do_el0_svc+0x58/0x14c [ 108.123072][ T5050] el0_svc+0x78/0x1e0 [ 108.124173][ T5050] el0t_64_sync_handler+0xcc/0xe4 [ 108.125507][ T5050] el0t_64_sync+0x1a0/0x1a4 [ 108.126768][ T5050] irq event stamp: 83460 [ 108.127957][ T5050] hardirqs last enabled at (83459): [] __up_console_sem+0xb4/0x100 [ 108.130629][ T5050] hardirqs last disabled at (83460): [] el1_dbg+0x24/0x80 [ 108.133041][ T5050] softirqs last enabled at (83440): [] handle_softirqs+0xa4c/0xbf0 [ 108.135685][ T5050] softirqs last disabled at (83401): [] __irq_exit_rcu+0x240/0x440 [ 108.138364][ T5050] ---[ end trace 187b209142460ce5 ]--- [ 108.149197][ T5050] BTRFS: error (device loop0) in __btrfs_unlink_inode:4167: errno=-12 Out of memory [ 108.152183][ T5050] BTRFS info (device loop0): forced readonly [ 108.447972][ T5072] loop0: detected capacity change from 0 to 32768 [ 108.487440][ T5072] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.23 (5072) [ 108.497428][ T5072] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 108.499936][ T5072] BTRFS info (device loop0): using free space tree [ 108.503179][ T5072] BTRFS info (device loop0): has skinny extents [ 108.520636][ T5072] BTRFS info (device loop0): enabling ssd optimizations [ 108.529704][ T5072] FAULT_INJECTION: forcing a failure. [ 108.529704][ T5072] name failslab, interval 1, probability 0, space 0, times 0 [ 108.533727][ T5072] CPU: 0 PID: 5072 Comm: syz.0.23 Tainted: G W 5.15.185-syzkaller #0 [ 108.536288][ T5072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.538985][ T5072] Call trace: [ 108.539903][ T5072] dump_backtrace+0x0/0x43c [ 108.541107][ T5072] show_stack+0x2c/0x3c [ 108.542225][ T5072] __dump_stack+0x30/0x40 [ 108.543428][ T5072] dump_stack_lvl+0xf8/0x160 [ 108.544719][ T5072] dump_stack+0x1c/0x5c [ 108.545822][ T5072] should_fail+0x3c0/0x51c [ 108.546977][ T5072] __should_failslab+0xbc/0x10c [ 108.548333][ T5072] should_failslab+0x10/0x28 [ 108.549573][ T5072] slab_pre_alloc_hook+0x64/0xec [ 108.550941][ T5072] kmem_cache_alloc_trace+0x98/0x3fc [ 108.552334][ T5072] btrfs_delete_delayed_dir_index+0x220/0x550 [ 108.554007][ T5072] __btrfs_unlink_inode+0x34c/0xb00 [ 108.555453][ T5072] btrfs_unlink+0x108/0x258 [ 108.556679][ T5072] vfs_unlink+0x2e0/0x4f4 [ 108.557872][ T5072] do_unlinkat+0x31c/0x600 [ 108.559087][ T5072] __arm64_sys_unlinkat+0xe0/0xfc [ 108.560462][ T5072] invoke_syscall+0x98/0x2b8 [ 108.561718][ T5072] el0_svc_common+0x138/0x258 [ 108.562972][ T5072] do_el0_svc+0x58/0x14c [ 108.564109][ T5072] el0_svc+0x78/0x1e0 [ 108.565297][ T5072] el0t_64_sync_handler+0xcc/0xe4 [ 108.566660][ T5072] el0t_64_sync+0x1a0/0x1a4 [ 108.571634][ T5072] ------------[ cut here ]------------ [ 108.573530][ T5072] WARNING: CPU: 0 PID: 5072 at fs/btrfs/inode.c:4167 __btrfs_unlink_inode+0x908/0xb00 [ 108.576162][ T5072] Modules linked in: [ 108.577201][ T5072] CPU: 0 PID: 5072 Comm: syz.0.23 Tainted: G W 5.15.185-syzkaller #0 [ 108.579658][ T5072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.582360][ T5072] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 108.584625][ T5072] pc : __btrfs_unlink_inode+0x908/0xb00 [ 108.586186][ T5072] lr : __btrfs_unlink_inode+0x908/0xb00 [ 108.587715][ T5072] sp : ffff800020357a60 [ 108.588846][ T5072] x29: ffff800020357b10 x28: ffff0000d2afa000 x27: ffff0000ec104410 [ 108.591170][ T5072] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000edc9f160 [ 108.593380][ T5072] x23: 1ffff0000406af54 x22: dfff800000000000 x21: ffff0000e1eb3110 [ 108.595622][ T5072] x20: ffff0000de31e3c8 x19: 1fffe0001bc63c79 x18: 0000000000000001 [ 108.597888][ T5072] x17: 0000000000000000 x16: ffff8000111a97c4 x15: 00000000ffffffff [ 108.600120][ T5072] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 108.602396][ T5072] x11: 0000000000000000 x10: 0000000000000000 x9 : 55ca9b5590b16a00 [ 108.604636][ T5072] x8 : 55ca9b5590b16a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 108.606894][ T5072] x5 : ffff800020357358 x4 : ffff80001423f280 x3 : ffff800008503958 [ 108.609116][ T5072] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 108.611350][ T5072] Call trace: [ 108.612282][ T5072] __btrfs_unlink_inode+0x908/0xb00 [ 108.613725][ T5072] btrfs_unlink+0x108/0x258 [ 108.614983][ T5072] vfs_unlink+0x2e0/0x4f4 [ 108.616180][ T5072] do_unlinkat+0x31c/0x600 [ 108.617360][ T5072] __arm64_sys_unlinkat+0xe0/0xfc [ 108.618725][ T5072] invoke_syscall+0x98/0x2b8 [ 108.620062][ T5072] el0_svc_common+0x138/0x258 [ 108.621369][ T5072] do_el0_svc+0x58/0x14c [ 108.622537][ T5072] el0_svc+0x78/0x1e0 [ 108.623679][ T5072] el0t_64_sync_handler+0xcc/0xe4 [ 108.625089][ T5072] el0t_64_sync+0x1a0/0x1a4 [ 108.626338][ T5072] irq event stamp: 81202 [ 108.627506][ T5072] hardirqs last enabled at (81201): [] __up_console_sem+0xb4/0x100 [ 108.630176][ T5072] hardirqs last disabled at (81202): [] el1_dbg+0x24/0x80 [ 108.632595][ T5072] softirqs last enabled at (81192): [] handle_softirqs+0xa4c/0xbf0 [ 108.635219][ T5072] softirqs last disabled at (81123): [] __irq_exit_rcu+0x240/0x440 [ 108.637866][ T5072] ---[ end trace 187b209142460ce6 ]--- [ 108.641560][ T5072] BTRFS: error (device loop0) in __btrfs_unlink_inode:4167: errno=-12 Out of memory [ 108.644794][ T5072] BTRFS info (device loop0): forced readonly [ 108.928777][ T5094] loop0: detected capacity change from 0 to 32768 [ 108.971403][ T5094] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.24 (5094) [ 108.981174][ T5094] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 108.984032][ T5094] BTRFS info (device loop0): using free space tree [ 108.985856][ T5094] BTRFS info (device loop0): has skinny extents [ 109.011199][ T5094] BTRFS info (device loop0): enabling ssd optimizations [ 109.018643][ T5094] FAULT_INJECTION: forcing a failure. [ 109.018643][ T5094] name failslab, interval 1, probability 0, space 0, times 0 [ 109.031880][ T5094] CPU: 0 PID: 5094 Comm: syz.0.24 Tainted: G W 5.15.185-syzkaller #0 [ 109.034376][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.037094][ T5094] Call trace: [ 109.037898][ T5094] dump_backtrace+0x0/0x43c [ 109.039138][ T5094] show_stack+0x2c/0x3c [ 109.040230][ T5094] __dump_stack+0x30/0x40 [ 109.041363][ T5094] dump_stack_lvl+0xf8/0x160 [ 109.042568][ T5094] dump_stack+0x1c/0x5c [ 109.043680][ T5094] should_fail+0x3c0/0x51c [ 109.044861][ T5094] __should_failslab+0xbc/0x10c [ 109.046171][ T5094] should_failslab+0x10/0x28 [ 109.047432][ T5094] slab_pre_alloc_hook+0x64/0xec [ 109.048762][ T5094] kmem_cache_alloc+0x94/0x3e4 [ 109.050111][ T5094] btrfs_alloc_path+0x5c/0x68 [ 109.051379][ T5094] __btrfs_unlink_inode+0x1d8/0xb00 [ 109.052779][ T5094] btrfs_unlink+0x108/0x258 [ 109.054014][ T5094] vfs_unlink+0x2e0/0x4f4 [ 109.055207][ T5094] do_unlinkat+0x31c/0x600 [ 109.056356][ T5094] __arm64_sys_unlinkat+0xe0/0xfc [ 109.057755][ T5094] invoke_syscall+0x98/0x2b8 [ 109.058997][ T5094] el0_svc_common+0x138/0x258 [ 109.060277][ T5094] do_el0_svc+0x58/0x14c [ 109.061381][ T5094] el0_svc+0x78/0x1e0 [ 109.062448][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 109.063870][ T5094] el0t_64_sync+0x1a0/0x1a4 1970/01/01 00:01:49 executed programs: 12 [ 109.482300][ T5115] loop0: detected capacity change from 0 to 32768 [ 109.490018][ T5115] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.25 (5115) [ 109.507654][ T5115] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 109.510062][ T5115] BTRFS info (device loop0): using free space tree [ 109.512729][ T5115] BTRFS info (device loop0): has skinny extents [ 109.653495][ T5115] BTRFS info (device loop0): enabling ssd optimizations [ 109.670254][ T5115] FAULT_INJECTION: forcing a failure. [ 109.670254][ T5115] name failslab, interval 1, probability 0, space 0, times 0 [ 109.675357][ T5115] CPU: 1 PID: 5115 Comm: syz.0.25 Tainted: G W 5.15.185-syzkaller #0 [ 109.677943][ T5115] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.680639][ T5115] Call trace: [ 109.681457][ T5115] dump_backtrace+0x0/0x43c [ 109.682673][ T5115] show_stack+0x2c/0x3c [ 109.683800][ T5115] __dump_stack+0x30/0x40 [ 109.684998][ T5115] dump_stack_lvl+0xf8/0x160 [ 109.686244][ T5115] dump_stack+0x1c/0x5c [ 109.687323][ T5115] should_fail+0x3c0/0x51c [ 109.688489][ T5115] __should_failslab+0xbc/0x10c [ 109.689771][ T5115] should_failslab+0x10/0x28 [ 109.691018][ T5115] slab_pre_alloc_hook+0x64/0xec [ 109.692379][ T5115] kmem_cache_alloc_trace+0x98/0x3fc [ 109.693765][ T5115] btrfs_delete_delayed_dir_index+0x220/0x550 [ 109.695456][ T5115] __btrfs_unlink_inode+0x34c/0xb00 [ 109.696823][ T5115] btrfs_unlink+0x108/0x258 [ 109.697989][ T5115] vfs_unlink+0x2e0/0x4f4 [ 109.699165][ T5115] do_unlinkat+0x31c/0x600 [ 109.700320][ T5115] __arm64_sys_unlinkat+0xe0/0xfc [ 109.701708][ T5115] invoke_syscall+0x98/0x2b8 [ 109.702962][ T5115] el0_svc_common+0x138/0x258 [ 109.704185][ T5115] do_el0_svc+0x58/0x14c [ 109.705341][ T5115] el0_svc+0x78/0x1e0 [ 109.706433][ T5115] el0t_64_sync_handler+0xcc/0xe4 [ 109.707782][ T5115] el0t_64_sync+0x1a0/0x1a4 [ 109.713887][ T5115] ------------[ cut here ]------------ [ 109.715845][ T5115] WARNING: CPU: 1 PID: 5115 at fs/btrfs/inode.c:4167 __btrfs_unlink_inode+0x908/0xb00 [ 109.718394][ T5115] Modules linked in: [ 109.719471][ T5115] CPU: 1 PID: 5115 Comm: syz.0.25 Tainted: G W 5.15.185-syzkaller #0 [ 109.722020][ T5115] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.724779][ T5115] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 109.726842][ T5115] pc : __btrfs_unlink_inode+0x908/0xb00 [ 109.728323][ T5115] lr : __btrfs_unlink_inode+0x908/0xb00 [ 109.729768][ T5115] sp : ffff800020647a60 [ 109.730954][ T5115] x29: ffff800020647b10 x28: ffff0000d5bb2000 x27: ffff0000e1ebdc10 [ 109.733158][ T5115] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ece77160 [ 109.735386][ T5115] x23: 1ffff000040c8f54 x22: dfff800000000000 x21: ffff0000e1d89d70 [ 109.737610][ T5115] x20: ffff0000de1a3f78 x19: 1fffe0001bc347ef x18: 0000000000000001 [ 109.739873][ T5115] x17: 0000000000000000 x16: ffff8000111a97c4 x15: 00000000ffffffff [ 109.742073][ T5115] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 109.744221][ T5115] x11: 0000000000000000 x10: 0000000000000000 x9 : 2320040a1267e200 [ 109.746338][ T5115] x8 : 2320040a1267e200 x7 : 0000000000000001 x6 : 0000000000000001 [ 109.748521][ T5115] x5 : ffff800020647358 x4 : ffff80001423f280 x3 : ffff800008503958 [ 109.750682][ T5115] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 109.752880][ T5115] Call trace: [ 109.753737][ T5115] __btrfs_unlink_inode+0x908/0xb00 [ 109.755147][ T5115] btrfs_unlink+0x108/0x258 [ 109.756351][ T5115] vfs_unlink+0x2e0/0x4f4 [ 109.757589][ T5115] do_unlinkat+0x31c/0x600 [ 109.758899][ T5115] __arm64_sys_unlinkat+0xe0/0xfc [ 109.760315][ T5115] invoke_syscall+0x98/0x2b8 [ 109.761540][ T5115] el0_svc_common+0x138/0x258 [ 109.762829][ T5115] do_el0_svc+0x58/0x14c [ 109.763974][ T5115] el0_svc+0x78/0x1e0 [ 109.765077][ T5115] el0t_64_sync_handler+0xcc/0xe4 [ 109.766411][ T5115] el0t_64_sync+0x1a0/0x1a4 [ 109.767619][ T5115] irq event stamp: 80942 [ 109.768736][ T5115] hardirqs last enabled at (80941): [] __up_console_sem+0xb4/0x100 [ 109.771363][ T5115] hardirqs last disabled at (80942): [] el1_dbg+0x24/0x80 [ 109.773673][ T5115] softirqs last enabled at (80918): [] handle_softirqs+0xa4c/0xbf0 [ 109.776348][ T5115] softirqs last disabled at (80813): [] __irq_exit_rcu+0x240/0x440 [ 109.778945][ T5115] ---[ end trace 187b209142460ce7 ]--- [ 109.785618][ T5115] BTRFS: error (device loop0) in __btrfs_unlink_inode:4167: errno=-12 Out of memory [ 109.788442][ T5115] BTRFS info (device loop0): forced readonly [ 110.120384][ T5137] loop0: detected capacity change from 0 to 32768 [ 110.143410][ T5137] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.26 (5137) [ 110.159909][ T5137] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 110.162405][ T5137] BTRFS info (device loop0): using free space tree [ 110.164188][ T5137] BTRFS info (device loop0): has skinny extents [ 110.181013][ T5137] BTRFS info (device loop0): enabling ssd optimizations [ 110.188624][ T5137] FAULT_INJECTION: forcing a failure. [ 110.188624][ T5137] name failslab, interval 1, probability 0, space 0, times 0 [ 110.193878][ T5137] CPU: 1 PID: 5137 Comm: syz.0.26 Tainted: G W 5.15.185-syzkaller #0 [ 110.196476][ T5137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.199177][ T5137] Call trace: [ 110.200096][ T5137] dump_backtrace+0x0/0x43c [ 110.201290][ T5137] show_stack+0x2c/0x3c [ 110.202346][ T5137] __dump_stack+0x30/0x40 [ 110.203524][ T5137] dump_stack_lvl+0xf8/0x160 [ 110.204736][ T5137] dump_stack+0x1c/0x5c [ 110.205849][ T5137] should_fail+0x3c0/0x51c [ 110.207070][ T5137] __should_failslab+0xbc/0x10c [ 110.208393][ T5137] should_failslab+0x10/0x28 [ 110.209557][ T5137] slab_pre_alloc_hook+0x64/0xec [ 110.210924][ T5137] kmem_cache_alloc+0x94/0x3e4 [ 110.212151][ T5137] btrfs_alloc_path+0x5c/0x68 [ 110.213413][ T5137] __btrfs_unlink_inode+0x1d8/0xb00 [ 110.214826][ T5137] btrfs_unlink+0x108/0x258 [ 110.215989][ T5137] vfs_unlink+0x2e0/0x4f4 [ 110.217142][ T5137] do_unlinkat+0x31c/0x600 [ 110.218419][ T5137] __arm64_sys_unlinkat+0xe0/0xfc [ 110.219777][ T5137] invoke_syscall+0x98/0x2b8 [ 110.221036][ T5137] el0_svc_common+0x138/0x258 [ 110.222276][ T5137] do_el0_svc+0x58/0x14c [ 110.223460][ T5137] el0_svc+0x78/0x1e0 [ 110.224528][ T5137] el0t_64_sync_handler+0xcc/0xe4 [ 110.225867][ T5137] el0t_64_sync+0x1a0/0x1a4 [ 110.609235][ T5159] loop0: detected capacity change from 0 to 32768 [ 110.623440][ T5159] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.27 (5159) [ 110.630080][ T5159] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 110.633196][ T5159] BTRFS info (device loop0): using free space tree [ 110.635024][ T5159] BTRFS info (device loop0): has skinny extents [ 110.652513][ T5159] BTRFS info (device loop0): enabling ssd optimizations [ 110.659505][ T5159] FAULT_INJECTION: forcing a failure. [ 110.659505][ T5159] name failslab, interval 1, probability 0, space 0, times 0 [ 110.663543][ T5159] CPU: 0 PID: 5159 Comm: syz.0.27 Tainted: G W 5.15.185-syzkaller #0 [ 110.666293][ T5159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.669084][ T5159] Call trace: [ 110.669961][ T5159] dump_backtrace+0x0/0x43c [ 110.671183][ T5159] show_stack+0x2c/0x3c [ 110.672322][ T5159] __dump_stack+0x30/0x40 [ 110.673553][ T5159] dump_stack_lvl+0xf8/0x160 [ 110.674853][ T5159] dump_stack+0x1c/0x5c [ 110.675980][ T5159] should_fail+0x3c0/0x51c [ 110.677247][ T5159] __should_failslab+0xbc/0x10c [ 110.678533][ T5159] should_failslab+0x10/0x28 [ 110.679753][ T5159] slab_pre_alloc_hook+0x64/0xec [ 110.681189][ T5159] kmem_cache_alloc_trace+0x98/0x3fc [ 110.682672][ T5159] btrfs_delete_delayed_dir_index+0x220/0x550 [ 110.684455][ T5159] __btrfs_unlink_inode+0x34c/0xb00 [ 110.685893][ T5159] btrfs_unlink+0x108/0x258 [ 110.687146][ T5159] vfs_unlink+0x2e0/0x4f4 [ 110.688342][ T5159] do_unlinkat+0x31c/0x600 [ 110.689532][ T5159] __arm64_sys_unlinkat+0xe0/0xfc [ 110.690890][ T5159] invoke_syscall+0x98/0x2b8 [ 110.692133][ T5159] el0_svc_common+0x138/0x258 [ 110.693425][ T5159] do_el0_svc+0x58/0x14c [ 110.694572][ T5159] el0_svc+0x78/0x1e0 [ 110.695775][ T5159] el0t_64_sync_handler+0xcc/0xe4 [ 110.697423][ T5159] el0t_64_sync+0x1a0/0x1a4 [ 110.700947][ T5159] ------------[ cut here ]------------ [ 110.702736][ T5159] WARNING: CPU: 0 PID: 5159 at fs/btrfs/inode.c:4167 __btrfs_unlink_inode+0x908/0xb00 [ 110.705555][ T5159] Modules linked in: [ 110.706627][ T5159] CPU: 0 PID: 5159 Comm: syz.0.27 Tainted: G W 5.15.185-syzkaller #0 [ 110.709163][ T5159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.712008][ T5159] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 110.714279][ T5159] pc : __btrfs_unlink_inode+0x908/0xb00 [ 110.715762][ T5159] lr : __btrfs_unlink_inode+0x908/0xb00 [ 110.717292][ T5159] sp : ffff8000208d7a60 [ 110.718431][ T5159] x29: ffff8000208d7b10 x28: ffff0000d7ef6000 x27: ffff0000ec104c10 [ 110.720643][ T5159] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d1da92c0 [ 110.722841][ T5159] x23: 1ffff0000411af54 x22: dfff800000000000 x21: ffff0000e1f99d70 [ 110.725030][ T5159] x20: ffff0000de31e688 x19: 1fffe0001bc63cd1 x18: 0000000000000001 [ 110.727277][ T5159] x17: 0000000000000000 x16: ffff8000111a97c4 x15: 00000000ffffffff [ 110.729477][ T5159] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 110.731667][ T5159] x11: 0000000000000000 x10: 0000000000000000 x9 : 76eb7a627f7d1f00 [ 110.733900][ T5159] x8 : 76eb7a627f7d1f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 110.736059][ T5159] x5 : ffff8000208d7358 x4 : ffff80001423f280 x3 : ffff800008503958 [ 110.738198][ T5159] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 110.740393][ T5159] Call trace: [ 110.741281][ T5159] __btrfs_unlink_inode+0x908/0xb00 [ 110.742699][ T5159] btrfs_unlink+0x108/0x258 [ 110.743901][ T5159] vfs_unlink+0x2e0/0x4f4 [ 110.745094][ T5159] do_unlinkat+0x31c/0x600 [ 110.746275][ T5159] __arm64_sys_unlinkat+0xe0/0xfc [ 110.747622][ T5159] invoke_syscall+0x98/0x2b8 [ 110.748849][ T5159] el0_svc_common+0x138/0x258 [ 110.750091][ T5159] do_el0_svc+0x58/0x14c [ 110.751258][ T5159] el0_svc+0x78/0x1e0 [ 110.752320][ T5159] el0t_64_sync_handler+0xcc/0xe4 [ 110.753648][ T5159] el0t_64_sync+0x1a0/0x1a4 [ 110.754866][ T5159] irq event stamp: 81152 [ 110.756011][ T5159] hardirqs last enabled at (81151): [] __up_console_sem+0xb4/0x100 [ 110.758590][ T5159] hardirqs last disabled at (81152): [] el1_dbg+0x24/0x80 [ 110.760991][ T5159] softirqs last enabled at (81142): [] handle_softirqs+0xa4c/0xbf0 [ 110.763640][ T5159] softirqs last disabled at (81137): [] __irq_exit_rcu+0x240/0x440 [ 110.766233][ T5159] ---[ end trace 187b209142460ce8 ]--- [ 110.771850][ T5159] BTRFS: error (device loop0) in __btrfs_unlink_inode:4167: errno=-12 Out of memory [ 110.774554][ T5159] BTRFS info (device loop0): forced readonly [ 111.067696][ T5181] loop0: detected capacity change from 0 to 32768 [ 111.121178][ T5181] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.28 (5181) [ 111.130295][ T5181] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 111.133578][ T5181] BTRFS info (device loop0): using free space tree [ 111.135363][ T5181] BTRFS info (device loop0): has skinny extents [ 111.155971][ T5181] BTRFS info (device loop0): enabling ssd optimizations [ 111.165991][ T5181] FAULT_INJECTION: forcing a failure. [ 111.165991][ T5181] name failslab, interval 1, probability 0, space 0, times 0 [ 111.169403][ T5181] CPU: 0 PID: 5181 Comm: syz.0.28 Tainted: G W 5.15.185-syzkaller #0 [ 111.171913][ T5181] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.174741][ T5181] Call trace: [ 111.175600][ T5181] dump_backtrace+0x0/0x43c [ 111.176812][ T5181] show_stack+0x2c/0x3c [ 111.177967][ T5181] __dump_stack+0x30/0x40 [ 111.179177][ T5181] dump_stack_lvl+0xf8/0x160 [ 111.180394][ T5181] dump_stack+0x1c/0x5c [ 111.181598][ T5181] should_fail+0x3c0/0x51c [ 111.182841][ T5181] __should_failslab+0xbc/0x10c [ 111.184124][ T5181] should_failslab+0x10/0x28 [ 111.185352][ T5181] slab_pre_alloc_hook+0x64/0xec [ 111.186701][ T5181] kmem_cache_alloc+0x94/0x3e4 [ 111.188069][ T5181] btrfs_alloc_path+0x5c/0x68 [ 111.189319][ T5181] __btrfs_unlink_inode+0x1d8/0xb00 [ 111.190739][ T5181] btrfs_unlink+0x108/0x258 [ 111.191999][ T5181] vfs_unlink+0x2e0/0x4f4 [ 111.193218][ T5181] do_unlinkat+0x31c/0x600 [ 111.194435][ T5181] __arm64_sys_unlinkat+0xe0/0xfc [ 111.195823][ T5181] invoke_syscall+0x98/0x2b8 [ 111.197088][ T5181] el0_svc_common+0x138/0x258 [ 111.198408][ T5181] do_el0_svc+0x58/0x14c [ 111.199567][ T5181] el0_svc+0x78/0x1e0 [ 111.200721][ T5181] el0t_64_sync_handler+0xcc/0xe4 [ 111.202114][ T5181] el0t_64_sync+0x1a0/0x1a4 [ 111.306115][ T4625] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4625) [ 111.500728][ T5202] loop0: detected capacity change from 0 to 32768 [ 111.578279][ T5202] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 111.580884][ T5202] BTRFS info (device loop0): using free space tree [ 111.584988][ T5202] BTRFS info (device loop0): has skinny extents [ 111.603105][ T5202] BTRFS info (device loop0): enabling ssd optimizations [ 111.613231][ T5202] FAULT_INJECTION: forcing a failure. [ 111.613231][ T5202] name failslab, interval 1, probability 0, space 0, times 0 [ 111.617395][ T5202] CPU: 1 PID: 5202 Comm: syz.0.29 Tainted: G W 5.15.185-syzkaller #0 [ 111.619900][ T5202] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.622611][ T5202] Call trace: [ 111.623513][ T5202] dump_backtrace+0x0/0x43c [ 111.624742][ T5202] show_stack+0x2c/0x3c [ 111.625883][ T5202] __dump_stack+0x30/0x40 [ 111.627039][ T5202] dump_stack_lvl+0xf8/0x160 [ 111.628250][ T5202] dump_stack+0x1c/0x5c [ 111.629327][ T5202] should_fail+0x3c0/0x51c [ 111.630510][ T5202] __should_failslab+0xbc/0x10c [ 111.631814][ T5202] should_failslab+0x10/0x28 [ 111.633058][ T5202] slab_pre_alloc_hook+0x64/0xec [ 111.634382][ T5202] kmem_cache_alloc_trace+0x98/0x3fc [ 111.635766][ T5202] btrfs_delete_delayed_dir_index+0x220/0x550 [ 111.637451][ T5202] __btrfs_unlink_inode+0x34c/0xb00 [ 111.638871][ T5202] btrfs_unlink+0x108/0x258 [ 111.640110][ T5202] vfs_unlink+0x2e0/0x4f4 [ 111.641267][ T5202] do_unlinkat+0x31c/0x600 [ 111.642481][ T5202] __arm64_sys_unlinkat+0xe0/0xfc [ 111.643831][ T5202] invoke_syscall+0x98/0x2b8 [ 111.645022][ T5202] el0_svc_common+0x138/0x258 [ 111.646261][ T5202] do_el0_svc+0x58/0x14c [ 111.647380][ T5202] el0_svc+0x78/0x1e0 [ 111.648420][ T5202] el0t_64_sync_handler+0xcc/0xe4 [ 111.649743][ T5202] el0t_64_sync+0x1a0/0x1a4 [ 111.651640][ T5202] ------------[ cut here ]------------ [ 111.653479][ T5202] WARNING: CPU: 1 PID: 5202 at fs/btrfs/inode.c:4167 __btrfs_unlink_inode+0x908/0xb00 [ 111.656089][ T5202] Modules linked in: [ 111.657121][ T5202] CPU: 1 PID: 5202 Comm: syz.0.29 Tainted: G W 5.15.185-syzkaller #0 [ 111.659574][ T5202] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.662182][ T5202] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 111.664263][ T5202] pc : __btrfs_unlink_inode+0x908/0xb00 [ 111.665730][ T5202] lr : __btrfs_unlink_inode+0x908/0xb00 [ 111.667203][ T5202] sp : ffff800020ab7a60 [ 111.668331][ T5202] x29: ffff800020ab7b10 x28: ffff0000d7d80000 x27: ffff0000ec105410 [ 111.670503][ T5202] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c7f59160 [ 111.672660][ T5202] x23: 1ffff00004156f54 x22: dfff800000000000 x21: ffff0000e1f9ebf0 [ 111.674757][ T5202] x20: ffff0000de31e948 x19: 1fffe0001bc63d29 x18: 0000000000000001 [ 111.676877][ T5202] x17: 0000000000000000 x16: ffff8000083008fc x15: 00000000ffffffff [ 111.679021][ T5202] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 111.681167][ T5202] x11: 0000000000000000 x10: 0000000000000000 x9 : d2d9ff0d1b06f800 [ 111.683343][ T5202] x8 : d2d9ff0d1b06f800 x7 : 0000000000000001 x6 : 0000000000000001 [ 111.685648][ T5202] x5 : ffff800020ab7358 x4 : ffff80001423f280 x3 : ffff800008300a0c [ 111.687826][ T5202] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 111.689934][ T5202] Call trace: [ 111.690799][ T5202] __btrfs_unlink_inode+0x908/0xb00 [ 111.692298][ T5202] btrfs_unlink+0x108/0x258 [ 111.693532][ T5202] vfs_unlink+0x2e0/0x4f4 [ 111.694702][ T5202] do_unlinkat+0x31c/0x600 [ 111.695874][ T5202] __arm64_sys_unlinkat+0xe0/0xfc [ 111.697208][ T5202] invoke_syscall+0x98/0x2b8 [ 111.698502][ T5202] el0_svc_common+0x138/0x258 [ 111.699744][ T5202] do_el0_svc+0x58/0x14c [ 111.700898][ T5202] el0_svc+0x78/0x1e0 [ 111.701956][ T5202] el0t_64_sync_handler+0xcc/0xe4 [ 111.703303][ T5202] el0t_64_sync+0x1a0/0x1a4 [ 111.704514][ T5202] irq event stamp: 80240 [ 111.705630][ T5202] hardirqs last enabled at (80239): [] __up_console_sem+0xb4/0x100 [ 111.708303][ T5202] hardirqs last disabled at (80240): [] el1_dbg+0x24/0x80 [ 111.710621][ T5202] softirqs last enabled at (80230): [] handle_softirqs+0xa4c/0xbf0 [ 111.713253][ T5202] softirqs last disabled at (80207): [] __irq_exit_rcu+0x240/0x440 [ 111.715761][ T5202] ---[ end trace 187b209142460ce9 ]--- [ 111.717447][ T5202] BTRFS: error (device loop0) in __btrfs_unlink_inode:4167: errno=-12 Out of memory [ 111.720218][ T5202] BTRFS info (device loop0): forced readonly [ 112.005568][ T5225] loop0: detected capacity change from 0 to 32768 [ 112.099810][ T5225] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.30 (5225) [ 112.107380][ T5225] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 112.109823][ T5225] BTRFS info (device loop0): using free space tree [ 112.111568][ T5225] BTRFS info (device loop0): has skinny extents [ 112.133058][ T5225] BTRFS info (device loop0): enabling ssd optimizations [ 112.140068][ T5225] FAULT_INJECTION: forcing a failure. [ 112.140068][ T5225] name failslab, interval 1, probability 0, space 0, times 0 [ 112.144440][ T5225] CPU: 0 PID: 5225 Comm: syz.0.30 Tainted: G W 5.15.185-syzkaller #0 [ 112.147025][ T5225] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.149778][ T5225] Call trace: [ 112.150698][ T5225] dump_backtrace+0x0/0x43c [ 112.151903][ T5225] show_stack+0x2c/0x3c [ 112.153101][ T5225] __dump_stack+0x30/0x40 [ 112.154317][ T5225] dump_stack_lvl+0xf8/0x160 [ 112.155583][ T5225] dump_stack+0x1c/0x5c [ 112.156709][ T5225] should_fail+0x3c0/0x51c [ 112.157937][ T5225] __should_failslab+0xbc/0x10c [ 112.159246][ T5225] should_failslab+0x10/0x28 [ 112.160493][ T5225] slab_pre_alloc_hook+0x64/0xec [ 112.161875][ T5225] kmem_cache_alloc_trace+0x98/0x3fc [ 112.163325][ T5225] btrfs_delete_delayed_dir_index+0x220/0x550 [ 112.165146][ T5225] __btrfs_unlink_inode+0x34c/0xb00 [ 112.166540][ T5225] btrfs_unlink+0x108/0x258 [ 112.167748][ T5225] vfs_unlink+0x2e0/0x4f4 [ 112.168983][ T5225] do_unlinkat+0x31c/0x600 [ 112.170186][ T5225] __arm64_sys_unlinkat+0xe0/0xfc [ 112.171578][ T5225] invoke_syscall+0x98/0x2b8 [ 112.172761][ T5225] el0_svc_common+0x138/0x258 [ 112.174050][ T5225] do_el0_svc+0x58/0x14c [ 112.175215][ T5225] el0_svc+0x78/0x1e0 [ 112.176328][ T5225] el0t_64_sync_handler+0xcc/0xe4 [ 112.177699][ T5225] el0t_64_sync+0x1a0/0x1a4 [ 112.182444][ T5225] ------------[ cut here ]------------ [ 112.184220][ T5225] WARNING: CPU: 0 PID: 5225 at fs/btrfs/inode.c:4167 __btrfs_unlink_inode+0x908/0xb00 [ 112.186739][ T5225] Modules linked in: [ 112.187809][ T5225] CPU: 0 PID: 5225 Comm: syz.0.30 Tainted: G W 5.15.185-syzkaller #0 [ 112.190329][ T5225] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.193181][ T5225] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 112.195239][ T5225] pc : __btrfs_unlink_inode+0x908/0xb00 [ 112.196795][ T5225] lr : __btrfs_unlink_inode+0x908/0xb00 [ 112.198308][ T5225] sp : ffff800020c67a60 [ 112.199438][ T5225] x29: ffff800020c67b10 x28: ffff0000d4538000 x27: ffff0000ec104010 [ 112.201552][ T5225] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d97a6e70 [ 112.203669][ T5225] x23: 1ffff0000418cf54 x22: dfff800000000000 x21: ffff0000e1eb09d0 [ 112.205871][ T5225] x20: ffff0000de31e058 x19: 1fffe0001bc63c0b x18: 0000000000000001 [ 112.208033][ T5225] x17: 0000000000000000 x16: ffff8000111a97c4 x15: 00000000ffffffff [ 112.210155][ T5225] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 112.212362][ T5225] x11: 0000000000000000 x10: 0000000000000000 x9 : b4bd11c556490c00 [ 112.214556][ T5225] x8 : b4bd11c556490c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 112.216695][ T5225] x5 : ffff800020c67358 x4 : ffff80001423f280 x3 : ffff800008503958 [ 112.218811][ T5225] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 112.221024][ T5225] Call trace: [ 112.221885][ T5225] __btrfs_unlink_inode+0x908/0xb00 [ 112.223270][ T5225] btrfs_unlink+0x108/0x258 [ 112.224482][ T5225] vfs_unlink+0x2e0/0x4f4 [ 112.225689][ T5225] do_unlinkat+0x31c/0x600 [ 112.226874][ T5225] __arm64_sys_unlinkat+0xe0/0xfc [ 112.228228][ T5225] invoke_syscall+0x98/0x2b8 [ 112.229465][ T5225] el0_svc_common+0x138/0x258 [ 112.230759][ T5225] do_el0_svc+0x58/0x14c [ 112.231920][ T5225] el0_svc+0x78/0x1e0 [ 112.232990][ T5225] el0t_64_sync_handler+0xcc/0xe4 [ 112.234350][ T5225] el0t_64_sync+0x1a0/0x1a4 [ 112.235552][ T5225] irq event stamp: 81638 [ 112.236685][ T5225] hardirqs last enabled at (81637): [] __up_console_sem+0xb4/0x100 [ 112.239329][ T5225] hardirqs last disabled at (81638): [] el1_dbg+0x24/0x80 [ 112.241675][ T5225] softirqs last enabled at (81618): [] handle_softirqs+0xa4c/0xbf0 [ 112.244302][ T5225] softirqs last disabled at (81531): [] __irq_exit_rcu+0x240/0x440 [ 112.246868][ T5225] ---[ end trace 187b209142460cea ]--- [ 112.252248][ T5225] BTRFS: error (device loop0) in __btrfs_unlink_inode:4167: errno=-12 Out of memory [ 112.254874][ T5225] BTRFS info (device loop0): forced readonly [ 112.542707][ T5247] loop0: detected capacity change from 0 to 32768 [ 112.594020][ T5247] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.31 (5247) [ 112.603852][ T5247] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 112.606328][ T5247] BTRFS info (device loop0): using free space tree [ 112.608070][ T5247] BTRFS info (device loop0): has skinny extents [ 112.627607][ T5247] BTRFS info (device loop0): enabling ssd optimizations [ 112.636469][ T5247] FAULT_INJECTION: forcing a failure. [ 112.636469][ T5247] name failslab, interval 1, probability 0, space 0, times 0 [ 112.640088][ T5247] CPU: 0 PID: 5247 Comm: syz.0.31 Tainted: G W 5.15.185-syzkaller #0 [ 112.642741][ T5247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.645403][ T5247] Call trace: [ 112.646274][ T5247] dump_backtrace+0x0/0x43c [ 112.647537][ T5247] show_stack+0x2c/0x3c [ 112.648679][ T5247] __dump_stack+0x30/0x40 [ 112.649894][ T5247] dump_stack_lvl+0xf8/0x160 [ 112.651142][ T5247] dump_stack+0x1c/0x5c [ 112.652227][ T5247] should_fail+0x3c0/0x51c [ 112.653470][ T5247] __should_failslab+0xbc/0x10c [ 112.654777][ T5247] should_failslab+0x10/0x28 [ 112.656125][ T5247] slab_pre_alloc_hook+0x64/0xec [ 112.657521][ T5247] kmem_cache_alloc_trace+0x98/0x3fc [ 112.658922][ T5247] btrfs_delete_delayed_dir_index+0x220/0x550 [ 112.660557][ T5247] __btrfs_unlink_inode+0x34c/0xb00 [ 112.662034][ T5247] btrfs_unlink+0x108/0x258 [ 112.663269][ T5247] vfs_unlink+0x2e0/0x4f4 [ 112.664496][ T5247] do_unlinkat+0x31c/0x600 [ 112.665709][ T5247] __arm64_sys_unlinkat+0xe0/0xfc [ 112.667109][ T5247] invoke_syscall+0x98/0x2b8 [ 112.668374][ T5247] el0_svc_common+0x138/0x258 [ 112.669636][ T5247] do_el0_svc+0x58/0x14c [ 112.670811][ T5247] el0_svc+0x78/0x1e0 [ 112.671958][ T5247] el0t_64_sync_handler+0xcc/0xe4 [ 112.673299][ T5247] el0t_64_sync+0x1a0/0x1a4 [ 112.677599][ T5247] ------------[ cut here ]------------ [ 112.679528][ T5247] WARNING: CPU: 0 PID: 5247 at fs/btrfs/inode.c:4167 __btrfs_unlink_inode+0x908/0xb00 [ 112.682201][ T5247] Modules linked in: [ 112.683278][ T5247] CPU: 0 PID: 5247 Comm: syz.0.31 Tainted: G W 5.15.185-syzkaller #0 [ 112.685956][ T5247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.688684][ T5247] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 112.690811][ T5247] pc : __btrfs_unlink_inode+0x908/0xb00 [ 112.692343][ T5247] lr : __btrfs_unlink_inode+0x908/0xb00 [ 112.693873][ T5247] sp : ffff800020df7a60 [ 112.694951][ T5247] x29: ffff800020df7b10 x28: ffff0000d4dba000 x27: ffff0000ec105810 [ 112.697150][ T5247] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d8ec1160 [ 112.699316][ T5247] x23: 1ffff000041bef54 x22: dfff800000000000 x21: ffff0000ec1713a0 [ 112.701509][ T5247] x20: ffff0000de31eaa8 x19: 1fffe0001bc63d55 x18: 0000000000000001 [ 112.703742][ T5247] x17: 0000000000000000 x16: ffff8000111a97c4 x15: 00000000ffffffff [ 112.705938][ T5247] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 112.708153][ T5247] x11: 0000000000000000 x10: 0000000000000000 x9 : 13b184ca058c6600 [ 112.710366][ T5247] x8 : 13b184ca058c6600 x7 : 0000000000000001 x6 : 0000000000000001 [ 112.712624][ T5247] x5 : ffff800020df7358 x4 : ffff80001423f280 x3 : ffff800008503958 [ 112.714862][ T5247] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 112.717216][ T5247] Call trace: [ 112.718147][ T5247] __btrfs_unlink_inode+0x908/0xb00 [ 112.719605][ T5247] btrfs_unlink+0x108/0x258 [ 112.720931][ T5247] vfs_unlink+0x2e0/0x4f4 [ 112.722176][ T5247] do_unlinkat+0x31c/0x600 [ 112.723414][ T5247] __arm64_sys_unlinkat+0xe0/0xfc [ 112.724796][ T5247] invoke_syscall+0x98/0x2b8 [ 112.726065][ T5247] el0_svc_common+0x138/0x258 [ 112.727373][ T5247] do_el0_svc+0x58/0x14c [ 112.728569][ T5247] el0_svc+0x78/0x1e0 [ 112.729671][ T5247] el0t_64_sync_handler+0xcc/0xe4 [ 112.731114][ T5247] el0t_64_sync+0x1a0/0x1a4 [ 112.732364][ T5247] irq event stamp: 80884 [ 112.733500][ T5247] hardirqs last enabled at (80883): [] __up_console_sem+0xb4/0x100 [ 112.736171][ T5247] hardirqs last disabled at (80884): [] el1_dbg+0x24/0x80 [ 112.738586][ T5247] softirqs last enabled at (80864): [] handle_softirqs+0xa4c/0xbf0 [ 112.741111][ T5247] softirqs last disabled at (80699): [] __irq_exit_rcu+0x240/0x440 [ 112.743725][ T5247] ---[ end trace 187b209142460ceb ]--- [ 112.749112][ T5247] BTRFS: error (device loop0) in __btrfs_unlink_inode:4167: errno=-12 Out of memory [ 112.751897][ T5247] BTRFS info (device loop0): forced readonly [ 113.042986][ T5269] loop0: detected capacity change from 0 to 32768 [ 113.093864][ T5269] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.32 (5269) [ 113.156075][ T5269] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 113.158571][ T5269] BTRFS info (device loop0): using free space tree [ 113.160281][ T5269] BTRFS info (device loop0): has skinny extents [ 113.178440][ T5269] BTRFS info (device loop0): enabling ssd optimizations [ 113.188885][ T5269] FAULT_INJECTION: forcing a failure. [ 113.188885][ T5269] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 113.193510][ T5269] CPU: 0 PID: 5269 Comm: syz.0.32 Tainted: G W 5.15.185-syzkaller #0 [ 113.196051][ T5269] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.198799][ T5269] Call trace: [ 113.199669][ T5269] dump_backtrace+0x0/0x43c [ 113.200933][ T5269] show_stack+0x2c/0x3c [ 113.202026][ T5269] __dump_stack+0x30/0x40 [ 113.203211][ T5269] dump_stack_lvl+0xf8/0x160 [ 113.204408][ T5269] dump_stack+0x1c/0x5c [ 113.205556][ T5269] should_fail+0x3c0/0x51c [ 113.206768][ T5269] should_fail_alloc_page+0x74/0xa8 [ 113.208163][ T5269] prepare_alloc_pages+0x160/0x460 [ 113.209546][ T5269] __alloc_pages+0x108/0x470 [ 113.210842][ T5269] alloc_pages+0x34c/0x5c0 [ 113.212033][ T5269] new_slab+0xe0/0x55c [ 113.213184][ T5269] ___slab_alloc+0x6c0/0xda8 [ 113.214431][ T5269] __slab_alloc+0x68/0xc0 [ 113.215663][ T5269] kmem_cache_alloc+0x2ac/0x3e4 [ 113.217068][ T5269] btrfs_alloc_path+0x5c/0x68 [ 113.218357][ T5269] __btrfs_unlink_inode+0x1d8/0xb00 [ 113.219770][ T5269] btrfs_unlink+0x108/0x258 [ 113.221091][ T5269] vfs_unlink+0x2e0/0x4f4 [ 113.222273][ T5269] do_unlinkat+0x31c/0x600 [ 113.223465][ T5269] __arm64_sys_unlinkat+0xe0/0xfc [ 113.224845][ T5269] invoke_syscall+0x98/0x2b8 [ 113.226107][ T5269] el0_svc_common+0x138/0x258 [ 113.227352][ T5269] do_el0_svc+0x58/0x14c [ 113.228515][ T5269] el0_svc+0x78/0x1e0 [ 113.229604][ T5269] el0t_64_sync_handler+0xcc/0xe4 [ 113.231004][ T5269] el0t_64_sync+0x1a0/0x1a4 [ 113.611115][ T5290] loop0: detected capacity change from 0 to 32768 [ 113.669220][ T5290] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.33 (5290) [ 113.678184][ T5290] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 113.680720][ T5290] BTRFS info (device loop0): using free space tree [ 113.683089][ T5290] BTRFS info (device loop0): has skinny extents [ 113.714519][ T5290] BTRFS info (device loop0): enabling ssd optimizations [ 113.721638][ T5290] FAULT_INJECTION: forcing a failure. [ 113.721638][ T5290] name failslab, interval 1, probability 0, space 0, times 0 [ 113.725584][ T5290] CPU: 1 PID: 5290 Comm: syz.0.33 Tainted: G W 5.15.185-syzkaller #0 [ 113.728097][ T5290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.730793][ T5290] Call trace: [ 113.731613][ T5290] dump_backtrace+0x0/0x43c [ 113.732860][ T5290] show_stack+0x2c/0x3c [ 113.733998][ T5290] __dump_stack+0x30/0x40 [ 113.735145][ T5290] dump_stack_lvl+0xf8/0x160 [ 113.736335][ T5290] dump_stack+0x1c/0x5c [ 113.737493][ T5290] should_fail+0x3c0/0x51c [ 113.738717][ T5290] __should_failslab+0xbc/0x10c [ 113.740006][ T5290] should_failslab+0x10/0x28 [ 113.741262][ T5290] slab_pre_alloc_hook+0x64/0xec [ 113.742562][ T5290] kmem_cache_alloc_trace+0x98/0x3fc [ 113.743994][ T5290] btrfs_delete_delayed_dir_index+0x220/0x550 [ 113.745650][ T5290] __btrfs_unlink_inode+0x34c/0xb00 [ 113.747116][ T5290] btrfs_unlink+0x108/0x258 [ 113.748348][ T5290] vfs_unlink+0x2e0/0x4f4 [ 113.749532][ T5290] do_unlinkat+0x31c/0x600 [ 113.750714][ T5290] __arm64_sys_unlinkat+0xe0/0xfc [ 113.752061][ T5290] invoke_syscall+0x98/0x2b8 [ 113.753322][ T5290] el0_svc_common+0x138/0x258 [ 113.754607][ T5290] do_el0_svc+0x58/0x14c [ 113.755757][ T5290] el0_svc+0x78/0x1e0 [ 113.756807][ T5290] el0t_64_sync_handler+0xcc/0xe4 [ 113.758139][ T5290] el0t_64_sync+0x1a0/0x1a4 [ 113.762698][ T5290] ------------[ cut here ]------------ [ 113.764462][ T5290] WARNING: CPU: 1 PID: 5290 at fs/btrfs/inode.c:4167 __btrfs_unlink_inode+0x908/0xb00 [ 113.767021][ T5290] Modules linked in: [ 113.768072][ T5290] CPU: 1 PID: 5290 Comm: syz.0.33 Tainted: G W 5.15.185-syzkaller #0 [ 113.770479][ T5290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 113.773249][ T5290] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 113.775367][ T5290] pc : __btrfs_unlink_inode+0x908/0xb00 [ 113.776852][ T5290] lr : __btrfs_unlink_inode+0x908/0xb00 [ 113.778409][ T5290] sp : ffff800020f67a60 [ 113.779529][ T5290] x29: ffff800020f67b10 x28: ffff0000c1c8c000 x27: ffff0000e1ebd010 [ 113.781750][ T5290] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ede64840 [ 113.783910][ T5290] x23: 1ffff000041ecf54 x22: dfff800000000000 x21: ffff0000e1f82740 [ 113.786067][ T5290] x20: ffff0000e1c0e528 x19: 1fffe0001c381ca5 x18: 0000000000000001 [ 113.788308][ T5290] x17: 0000000000000000 x16: ffff8000111a97c4 x15: 00000000ffffffff [ 113.790486][ T5290] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 113.792667][ T5290] x11: 0000000000000000 x10: 0000000000000000 x9 : a215abab8c695c00 [ 113.794871][ T5290] x8 : a215abab8c695c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 113.797053][ T5290] x5 : ffff800020f67358 x4 : ffff80001423f280 x3 : ffff800008503958 [ 113.799200][ T5290] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 113.801353][ T5290] Call trace: [ 113.802269][ T5290] __btrfs_unlink_inode+0x908/0xb00 [ 113.803657][ T5290] btrfs_unlink+0x108/0x258 [ 113.804893][ T5290] vfs_unlink+0x2e0/0x4f4 [ 113.806029][ T5290] do_unlinkat+0x31c/0x600 [ 113.807181][ T5290] __arm64_sys_unlinkat+0xe0/0xfc [ 113.808487][ T5290] invoke_syscall+0x98/0x2b8 [ 113.809717][ T5290] el0_svc_common+0x138/0x258 [ 113.811001][ T5290] do_el0_svc+0x58/0x14c [ 113.812187][ T5290] el0_svc+0x78/0x1e0 [ 113.813266][ T5290] el0t_64_sync_handler+0xcc/0xe4 [ 113.814629][ T5290] el0t_64_sync+0x1a0/0x1a4 [ 113.815803][ T5290] irq event stamp: 80068 [ 113.816917][ T5290] hardirqs last enabled at (80067): [] __up_console_sem+0xb4/0x100 [ 113.819475][ T5290] hardirqs last disabled at (80068): [] el1_dbg+0x24/0x80 [ 113.821767][ T5290] softirqs last enabled at (80048): [] handle_softirqs+0xa4c/0xbf0 [ 113.824323][ T5290] softirqs last disabled at (80021): [] __irq_exit_rcu+0x240/0x440 [ 113.826920][ T5290] ---[ end trace 187b209142460cec ]--- [ 113.831497][ T5290] BTRFS: error (device loop0) in __btrfs_unlink_inode:4167: errno=-12 Out of memory [ 113.834363][ T5290] BTRFS info (device loop0): forced readonly [ 114.122205][ T5312] loop0: detected capacity change from 0 to 32768 [ 114.179935][ T5312] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.34 (5312) [ 114.187534][ T5312] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 114.190262][ T5312] BTRFS info (device loop0): using free space tree [ 114.192296][ T5312] BTRFS info (device loop0): has skinny extents [ 114.207098][ T5312] BTRFS info (device loop0): enabling ssd optimizations [ 114.216155][ T5312] FAULT_INJECTION: forcing a failure. [ 114.216155][ T5312] name failslab, interval 1, probability 0, space 0, times 0 [ 114.219669][ T5312] CPU: 0 PID: 5312 Comm: syz.0.34 Tainted: G W 5.15.185-syzkaller #0 [ 114.222205][ T5312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.225030][ T5312] Call trace: [ 114.225911][ T5312] dump_backtrace+0x0/0x43c [ 114.227126][ T5312] show_stack+0x2c/0x3c [ 114.228260][ T5312] __dump_stack+0x30/0x40 [ 114.229452][ T5312] dump_stack_lvl+0xf8/0x160 [ 114.230723][ T5312] dump_stack+0x1c/0x5c [ 114.231912][ T5312] should_fail+0x3c0/0x51c [ 114.233126][ T5312] __should_failslab+0xbc/0x10c [ 114.234507][ T5312] should_failslab+0x10/0x28 [ 114.235775][ T5312] slab_pre_alloc_hook+0x64/0xec [ 114.237111][ T5312] kmem_cache_alloc_trace+0x98/0x3fc [ 114.238540][ T5312] btrfs_delete_delayed_dir_index+0x220/0x550 [ 114.240280][ T5312] __btrfs_unlink_inode+0x34c/0xb00 [ 114.241698][ T5312] btrfs_unlink+0x108/0x258 [ 114.242950][ T5312] vfs_unlink+0x2e0/0x4f4 [ 114.244122][ T5312] do_unlinkat+0x31c/0x600 [ 114.245329][ T5312] __arm64_sys_unlinkat+0xe0/0xfc [ 114.246761][ T5312] invoke_syscall+0x98/0x2b8 [ 114.248069][ T5312] el0_svc_common+0x138/0x258 [ 114.249265][ T5312] do_el0_svc+0x58/0x14c [ 114.250430][ T5312] el0_svc+0x78/0x1e0 [ 114.251512][ T5312] el0t_64_sync_handler+0xcc/0xe4 [ 114.252948][ T5312] el0t_64_sync+0x1a0/0x1a4 [ 114.255660][ T5312] ------------[ cut here ]------------ [ 114.257473][ T5312] WARNING: CPU: 0 PID: 5312 at fs/btrfs/inode.c:4167 __btrfs_unlink_inode+0x908/0xb00 [ 114.260074][ T5312] Modules linked in: [ 114.261109][ T5312] CPU: 0 PID: 5312 Comm: syz.0.34 Tainted: G W 5.15.185-syzkaller #0 [ 114.263655][ T5312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 114.266346][ T5312] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 114.268499][ T5312] pc : __btrfs_unlink_inode+0x908/0xb00 [ 114.269982][ T5312] lr : __btrfs_unlink_inode+0x908/0xb00 [ 114.271529][ T5312] sp : ffff800020f67a60 [ 114.272775][ T5312] x29: ffff800020f67b10 x28: ffff0000ec906000 x27: ffff0000ec106010 [ 114.275122][ T5312] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000eb4c20b0 [ 114.277313][ T5312] x23: 1ffff000041ecf54 x22: dfff800000000000 x21: ffff0000ec174e80 [ 114.279594][ T5312] x20: ffff0000de31e1b8 x19: 1fffe0001bc63c37 x18: 0000000000000001 [ 114.281822][ T5312] x17: 0000000000000000 x16: ffff8000111a97c4 x15: 00000000ffffffff [ 114.283997][ T5312] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 114.286191][ T5312] x11: 0000000000000000 x10: 0000000000000000 x9 : ac8bd96275c78800 [ 114.288418][ T5312] x8 : ac8bd96275c78800 x7 : 0000000000000001 x6 : 0000000000000001 [ 114.290853][ T5312] x5 : ffff800020f67358 x4 : ffff80001423f280 x3 : ffff800008503958 [ 114.293018][ T5312] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 114.295231][ T5312] Call trace: [ 114.296112][ T5312] __btrfs_unlink_inode+0x908/0xb00 [ 114.297547][ T5312] btrfs_unlink+0x108/0x258 [ 114.298781][ T5312] vfs_unlink+0x2e0/0x4f4 [ 114.300023][ T5312] do_unlinkat+0x31c/0x600 [ 114.301172][ T5312] __arm64_sys_unlinkat+0xe0/0xfc [ 114.302518][ T5312] invoke_syscall+0x98/0x2b8 [ 114.303749][ T5312] el0_svc_common+0x138/0x258 [ 114.305045][ T5312] do_el0_svc+0x58/0x14c [ 114.306161][ T5312] el0_svc+0x78/0x1e0 [ 114.307246][ T5312] el0t_64_sync_handler+0xcc/0xe4 [ 114.308629][ T5312] el0t_64_sync+0x1a0/0x1a4 [ 114.309870][ T5312] irq event stamp: 80514 [ 114.310974][ T5312] hardirqs last enabled at (80513): [] __up_console_sem+0xb4/0x100 [ 114.313548][ T5312] hardirqs last disabled at (80514): [] el1_dbg+0x24/0x80 [ 114.315959][ T5312] softirqs last enabled at (80494): [] handle_softirqs+0xa4c/0xbf0 [ 114.318532][ T5312] softirqs last disabled at (80383): [] __irq_exit_rcu+0x240/0x440 [ 114.321159][ T5312] ---[ end trace 187b209142460ced ]--- [ 114.325255][ T5312] BTRFS: error (device loop0) in __btrfs_unlink_inode:4167: errno=-12 Out of memory [ 114.327848][ T5312] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:54 executed programs: 22