Warning: Permanently added '10.128.1.247' (ED25519) to the list of known hosts. 1970/01/01 00:01:01 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:01:01 ignoring optional flag "type"="gce" 1970/01/01 00:01:01 parsed 1 programs [ 63.193390][ T4533] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 64.225734][ T4569] chnl_net:caif_netlink_parms(): no params data found [ 64.243459][ T4569] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.244628][ T4569] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.246144][ T4569] device bridge_slave_0 entered promiscuous mode [ 64.248133][ T4569] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.249230][ T4569] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.250586][ T4569] device bridge_slave_1 entered promiscuous mode [ 64.258663][ T4569] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.260969][ T4569] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.268865][ T4569] team0: Port device team_slave_0 added [ 64.270766][ T4569] team0: Port device team_slave_1 added [ 64.277570][ T4569] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.278749][ T4569] 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. [ 64.283472][ T4569] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.285875][ T4569] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.286968][ T4569] 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. [ 64.291113][ T4569] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.343363][ T4569] device hsr_slave_0 entered promiscuous mode [ 64.352879][ T4569] device hsr_slave_1 entered promiscuous mode [ 64.849173][ T4569] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.863788][ T4569] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.883529][ T4569] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.933357][ T4569] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.950553][ T4569] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.951765][ T4569] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.953320][ T4569] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.954383][ T4569] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.970525][ T4569] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.974454][ T1881] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.976136][ T1881] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.977524][ T1881] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.979531][ T1881] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 64.984510][ T4569] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.987338][ T1881] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.988757][ T1881] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.989770][ T1881] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.001591][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.003084][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.004150][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.005978][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.007638][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.009097][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.012053][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.015008][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.019668][ T4569] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.059927][ T4569] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.063180][ T1881] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.064397][ T1881] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.069478][ T1881] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.076749][ T1881] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.078720][ T1881] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.080154][ T1881] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.084621][ T4569] device veth0_vlan entered promiscuous mode [ 65.087803][ T4569] device veth1_vlan entered promiscuous mode [ 65.095286][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.096816][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.098324][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.100594][ T4569] device veth0_macvtap entered promiscuous mode [ 65.103610][ T4569] device veth1_macvtap entered promiscuous mode [ 65.108741][ T4569] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.109903][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.111824][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.115466][ T4569] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.116749][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.119630][ T4569] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.121097][ T4569] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.123846][ T4569] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.125251][ T4569] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.406165][ T350] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.633894][ T1881] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.635247][ T1881] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.636751][ T1881] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.646132][ T1881] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.647400][ T1881] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.649175][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 68.495011][ T350] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.623246][ T2067] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.623988][ T13] cfg80211: failed to load regulatory.db [ 69.624407][ T2067] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.034950][ T350] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.086326][ T350] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:11 executed programs: 0 [ 71.458460][ T4951] chnl_net:caif_netlink_parms(): no params data found [ 71.476636][ T4951] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.477966][ T4951] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.479579][ T4951] device bridge_slave_0 entered promiscuous mode [ 71.481565][ T4951] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.483230][ T4951] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.484805][ T4951] device bridge_slave_1 entered promiscuous mode [ 71.499686][ T4951] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.502802][ T4951] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.510833][ T4951] team0: Port device team_slave_0 added [ 71.520853][ T4951] team0: Port device team_slave_1 added [ 71.536164][ T4951] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.537356][ T4951] 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. [ 71.541503][ T4951] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.545741][ T4951] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.546869][ T4951] 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. [ 71.550779][ T4951] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.613427][ T4951] device hsr_slave_0 entered promiscuous mode [ 71.662534][ T4951] device hsr_slave_1 entered promiscuous mode [ 71.722275][ T4951] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 71.723486][ T4951] Cannot create hsr debugfs directory [ 72.209042][ T4951] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 72.257504][ T4951] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 72.283491][ T4951] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 72.334013][ T4951] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 72.374743][ T4951] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.375964][ T4951] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.377165][ T4951] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.378186][ T4951] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.399636][ T4951] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.405266][ T350] device hsr_slave_0 left promiscuous mode [ 72.432537][ T350] device hsr_slave_1 left promiscuous mode [ 72.522734][ T350] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 72.524045][ T350] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 72.526065][ T350] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 72.527285][ T350] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 72.528683][ T350] device bridge_slave_1 left promiscuous mode [ 72.529710][ T350] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.553173][ T350] device bridge_slave_0 left promiscuous mode [ 72.554503][ T350] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.672296][ T350] device veth1_macvtap left promiscuous mode [ 72.673285][ T350] device veth0_macvtap left promiscuous mode [ 72.674375][ T350] device veth1_vlan left promiscuous mode [ 72.675300][ T350] device veth0_vlan left promiscuous mode [ 72.759163][ T350] team0 (unregistering): Port device team_slave_1 removed [ 72.764654][ T350] team0 (unregistering): Port device team_slave_0 removed [ 72.768933][ T350] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 72.805370][ T350] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 72.915492][ T350] bond0 (unregistering): Released all slaves [ 73.015223][ T1881] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.016710][ T1881] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.018664][ T1881] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.025818][ T4951] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.034014][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.035487][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.036914][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.038463][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.040432][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.041610][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.043672][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.045209][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.046736][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.047833][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.049150][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 73.050890][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 73.052874][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 73.054462][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.056230][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.060532][ T1835] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 73.062777][ T1835] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.068943][ T4951] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 73.070505][ T4951] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.075294][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 73.076848][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.078453][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 73.080082][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.081942][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.122745][ T1835] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.124169][ T1835] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.127636][ T4951] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.135631][ T1835] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 73.137564][ T1835] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.145865][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 73.147428][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.149034][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.150399][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.152128][ T4951] device veth0_vlan entered promiscuous mode [ 73.157464][ T4951] device veth1_vlan entered promiscuous mode [ 73.165705][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.167282][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.168809][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 73.170342][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.173044][ T4951] device veth0_macvtap entered promiscuous mode [ 73.175626][ T4951] device veth1_macvtap entered promiscuous mode [ 73.180709][ T4951] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.181967][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.184541][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 73.186070][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.187613][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.190387][ T4951] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.191676][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.197273][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.200074][ T4951] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.201575][ T4951] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.204128][ T4951] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.205383][ T4951] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.226411][ T148] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.228427][ T148] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.234203][ T1835] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.237429][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.238986][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.240642][ T1835] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 73.354138][ T5108] loop0: detected capacity change from 0 to 32768 [ 73.412441][ T5108] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.15 (5108) [ 73.418693][ T5108] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 73.420451][ T5108] BTRFS info (device loop0): using free space tree [ 73.421604][ T5108] BTRFS info (device loop0): has skinny extents [ 73.431180][ T5108] BTRFS info (device loop0): enabling ssd optimizations [ 73.440186][ T5108] FAULT_INJECTION: forcing a failure. [ 73.440186][ T5108] name failslab, interval 1, probability 0, space 0, times 1 [ 73.445351][ T5108] CPU: 1 PID: 5108 Comm: syz.0.15 Not tainted syzkaller #0 [ 73.446424][ T5108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 73.448041][ T5108] Call trace: [ 73.448552][ T5108] dump_backtrace+0x0/0x43c [ 73.449330][ T5108] show_stack+0x2c/0x3c [ 73.450017][ T5108] __dump_stack+0x30/0x40 [ 73.450714][ T5108] dump_stack_lvl+0xf8/0x160 [ 73.451465][ T5108] dump_stack+0x1c/0x5c [ 73.452193][ T5108] should_fail+0x3c0/0x51c [ 73.452905][ T5108] __should_failslab+0xbc/0x10c [ 73.453707][ T5108] should_failslab+0x10/0x28 [ 73.454477][ T5108] slab_pre_alloc_hook+0x64/0xec [ 73.455243][ T5108] kmem_cache_alloc_trace+0x98/0x3fc [ 73.456057][ T5108] btrfs_delete_delayed_dir_index+0x220/0x550 [ 73.457044][ T5108] __btrfs_unlink_inode+0x34c/0xb00 [ 73.457937][ T5108] btrfs_unlink+0x108/0x258 [ 73.458663][ T5108] vfs_unlink+0x2e0/0x4f4 [ 73.459337][ T5108] do_unlinkat+0x31c/0x600 [ 73.460024][ T5108] __arm64_sys_unlinkat+0xe0/0xfc [ 73.460794][ T5108] invoke_syscall+0x98/0x2b8 [ 73.461502][ T5108] el0_svc_common+0x138/0x258 [ 73.462192][ T5108] do_el0_svc+0x58/0x14c [ 73.462861][ T5108] el0_svc+0x78/0x1e0 [ 73.463510][ T5108] el0t_64_sync_handler+0xcc/0xe4 [ 73.464269][ T5108] el0t_64_sync+0x1a0/0x1a4 [ 73.466652][ T5108] ------------[ cut here ]------------ [ 73.467642][ T5108] WARNING: CPU: 1 PID: 5108 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 73.469106][ T5108] Modules linked in: [ 73.469713][ T5108] CPU: 1 PID: 5108 Comm: syz.0.15 Not tainted syzkaller #0 [ 73.470879][ T5108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 73.472553][ T3627] Bluetooth: hci1: command 0x0409 tx timeout [ 73.472550][ T5108] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.472584][ T5108] pc : __btrfs_unlink_inode+0x908/0xb00 [ 73.475769][ T5108] lr : __btrfs_unlink_inode+0x908/0xb00 [ 73.476638][ T5108] sp : ffff800020067a60 [ 73.477287][ T5108] x29: ffff800020067b10 x28: ffff0000da7be000 x27: ffff0000e9544010 [ 73.478462][ T5108] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d4fb1f20 [ 73.479677][ T5108] x23: 1ffff0000400cf54 x22: dfff800000000000 x21: ffff0000e30f93a0 [ 73.480927][ T5108] x20: ffff0000dee27108 x19: 1fffe0001bdc4e21 x18: 0000000000000001 [ 73.482185][ T5108] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 73.483547][ T5108] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 73.484833][ T5108] x11: 0000000000000000 x10: 0000000000000000 x9 : fb13207f99155b00 [ 73.486153][ T5108] x8 : fb13207f99155b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.487489][ T5108] x5 : ffff800020067358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 73.488780][ T5108] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.490130][ T5108] Call trace: [ 73.490666][ T5108] __btrfs_unlink_inode+0x908/0xb00 [ 73.491505][ T5108] btrfs_unlink+0x108/0x258 [ 73.492249][ T5108] vfs_unlink+0x2e0/0x4f4 [ 73.492985][ T5108] do_unlinkat+0x31c/0x600 [ 73.493673][ T5108] __arm64_sys_unlinkat+0xe0/0xfc [ 73.494517][ T5108] invoke_syscall+0x98/0x2b8 [ 73.495268][ T5108] el0_svc_common+0x138/0x258 [ 73.496100][ T5108] do_el0_svc+0x58/0x14c [ 73.496811][ T5108] el0_svc+0x78/0x1e0 [ 73.497420][ T5108] el0t_64_sync_handler+0xcc/0xe4 [ 73.498255][ T5108] el0t_64_sync+0x1a0/0x1a4 [ 73.498924][ T5108] irq event stamp: 80838 [ 73.499554][ T5108] hardirqs last enabled at (80837): [] __up_console_sem+0xb4/0x100 [ 73.500921][ T5108] hardirqs last disabled at (80838): [] el1_dbg+0x24/0x80 [ 73.502178][ T5108] softirqs last enabled at (80818): [] handle_softirqs+0xa4c/0xbf0 [ 73.503665][ T5108] softirqs last disabled at (80765): [] __irq_exit_rcu+0x240/0x440 [ 73.505096][ T5108] ---[ end trace b4216ca0bf74783d ]--- [ 73.506500][ T5108] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 73.508134][ T5108] BTRFS info (device loop0): forced readonly [ 73.695688][ T5144] loop0: detected capacity change from 0 to 32768 [ 73.734642][ T5144] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.16 (5144) [ 73.737962][ T5144] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 73.739370][ T5144] BTRFS info (device loop0): using free space tree [ 73.740452][ T5144] BTRFS info (device loop0): has skinny extents [ 73.751986][ T5144] BTRFS info (device loop0): enabling ssd optimizations [ 73.758518][ T5144] FAULT_INJECTION: forcing a failure. [ 73.758518][ T5144] name failslab, interval 1, probability 0, space 0, times 0 [ 73.760509][ T5144] CPU: 1 PID: 5144 Comm: syz.0.16 Tainted: G W syzkaller #0 [ 73.761892][ T5144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 73.763563][ T5144] Call trace: [ 73.764103][ T5144] dump_backtrace+0x0/0x43c [ 73.764905][ T5144] show_stack+0x2c/0x3c [ 73.765549][ T5144] __dump_stack+0x30/0x40 [ 73.766229][ T5144] dump_stack_lvl+0xf8/0x160 [ 73.766958][ T5144] dump_stack+0x1c/0x5c [ 73.767613][ T5144] should_fail+0x3c0/0x51c [ 73.768341][ T5144] __should_failslab+0xbc/0x10c [ 73.769111][ T5144] should_failslab+0x10/0x28 [ 73.769905][ T5144] slab_pre_alloc_hook+0x64/0xec [ 73.770747][ T5144] kmem_cache_alloc_trace+0x98/0x3fc [ 73.771666][ T5144] btrfs_delete_delayed_dir_index+0x220/0x550 [ 73.772726][ T5144] __btrfs_unlink_inode+0x34c/0xb00 [ 73.773634][ T5144] btrfs_unlink+0x108/0x258 [ 73.774373][ T5144] vfs_unlink+0x2e0/0x4f4 [ 73.775104][ T5144] do_unlinkat+0x31c/0x600 [ 73.775804][ T5144] __arm64_sys_unlinkat+0xe0/0xfc [ 73.776646][ T5144] invoke_syscall+0x98/0x2b8 [ 73.777377][ T5144] el0_svc_common+0x138/0x258 [ 73.778118][ T5144] do_el0_svc+0x58/0x14c [ 73.778836][ T5144] el0_svc+0x78/0x1e0 [ 73.779459][ T5144] el0t_64_sync_handler+0xcc/0xe4 [ 73.780209][ T5144] el0t_64_sync+0x1a0/0x1a4 [ 73.783270][ T5144] ------------[ cut here ]------------ [ 73.784262][ T5144] WARNING: CPU: 0 PID: 5144 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 73.785598][ T5144] Modules linked in: [ 73.786202][ T5144] CPU: 0 PID: 5144 Comm: syz.0.16 Tainted: G W syzkaller #0 [ 73.787544][ T5144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 73.789132][ T5144] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.790399][ T5144] pc : __btrfs_unlink_inode+0x908/0xb00 [ 73.791298][ T5144] lr : __btrfs_unlink_inode+0x908/0xb00 [ 73.792240][ T5144] sp : ffff800020257a60 [ 73.792950][ T5144] x29: ffff800020257b10 x28: ffff0000c1f10000 x27: ffff0000e9544410 [ 73.794290][ T5144] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d27760b0 [ 73.795744][ T5144] x23: 1ffff0000404af54 x22: dfff800000000000 x21: ffff0000e30fbae0 [ 73.797172][ T5144] x20: ffff0000dee27268 x19: 1fffe0001bdc4e4d x18: 0000000000000001 [ 73.798543][ T5144] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 73.799952][ T5144] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 73.801202][ T5144] x11: 0000000000000000 x10: 0000000000000000 x9 : 396a6611a400a900 [ 73.802451][ T5144] x8 : 396a6611a400a900 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.803756][ T5144] x5 : ffff800020257358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 73.805011][ T5144] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.806360][ T5144] Call trace: [ 73.806886][ T5144] __btrfs_unlink_inode+0x908/0xb00 [ 73.807697][ T5144] btrfs_unlink+0x108/0x258 [ 73.808402][ T5144] vfs_unlink+0x2e0/0x4f4 [ 73.809079][ T5144] do_unlinkat+0x31c/0x600 [ 73.809764][ T5144] __arm64_sys_unlinkat+0xe0/0xfc [ 73.810548][ T5144] invoke_syscall+0x98/0x2b8 [ 73.811232][ T5144] el0_svc_common+0x138/0x258 [ 73.811919][ T5144] do_el0_svc+0x58/0x14c [ 73.812515][ T5144] el0_svc+0x78/0x1e0 [ 73.813149][ T5144] el0t_64_sync_handler+0xcc/0xe4 [ 73.813959][ T5144] el0t_64_sync+0x1a0/0x1a4 [ 73.814685][ T5144] irq event stamp: 79442 [ 73.815347][ T5144] hardirqs last enabled at (79441): [] __up_console_sem+0xb4/0x100 [ 73.816886][ T5144] hardirqs last disabled at (79442): [] el1_dbg+0x24/0x80 [ 73.818318][ T5144] softirqs last enabled at (79422): [] handle_softirqs+0xa4c/0xbf0 [ 73.819798][ T5144] softirqs last disabled at (79387): [] __irq_exit_rcu+0x240/0x440 [ 73.821221][ T5144] ---[ end trace b4216ca0bf74783e ]--- [ 73.824239][ T5144] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 73.825842][ T5144] BTRFS info (device loop0): forced readonly [ 73.970437][ T5166] loop0: detected capacity change from 0 to 32768 [ 73.980969][ T5166] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.17 (5166) [ 73.990733][ T5166] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 73.992124][ T5166] BTRFS info (device loop0): using free space tree [ 73.993542][ T5166] BTRFS info (device loop0): has skinny extents [ 74.050595][ T5166] BTRFS info (device loop0): enabling ssd optimizations [ 74.063575][ T5166] FAULT_INJECTION: forcing a failure. [ 74.063575][ T5166] name failslab, interval 1, probability 0, space 0, times 0 [ 74.065720][ T5166] CPU: 0 PID: 5166 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 74.067145][ T5166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 74.068836][ T5166] Call trace: [ 74.069363][ T5166] dump_backtrace+0x0/0x43c [ 74.070117][ T5166] show_stack+0x2c/0x3c [ 74.070830][ T5166] __dump_stack+0x30/0x40 [ 74.071544][ T5166] dump_stack_lvl+0xf8/0x160 [ 74.072300][ T5166] dump_stack+0x1c/0x5c [ 74.072970][ T5166] should_fail+0x3c0/0x51c [ 74.073657][ T5166] __should_failslab+0xbc/0x10c [ 74.074447][ T5166] should_failslab+0x10/0x28 [ 74.075201][ T5166] slab_pre_alloc_hook+0x64/0xec [ 74.076045][ T5166] kmem_cache_alloc_trace+0x98/0x3fc [ 74.076925][ T5166] btrfs_delete_delayed_dir_index+0x220/0x550 [ 74.077951][ T5166] __btrfs_unlink_inode+0x34c/0xb00 [ 74.078809][ T5166] btrfs_unlink+0x108/0x258 [ 74.079578][ T5166] vfs_unlink+0x2e0/0x4f4 [ 74.080302][ T5166] do_unlinkat+0x31c/0x600 [ 74.081024][ T5166] __arm64_sys_unlinkat+0xe0/0xfc [ 74.081826][ T5166] invoke_syscall+0x98/0x2b8 [ 74.082596][ T5166] el0_svc_common+0x138/0x258 [ 74.083403][ T5166] do_el0_svc+0x58/0x14c [ 74.084085][ T5166] el0_svc+0x78/0x1e0 [ 74.084756][ T5166] el0t_64_sync_handler+0xcc/0xe4 [ 74.085586][ T5166] el0t_64_sync+0x1a0/0x1a4 [ 74.088073][ T5166] ------------[ cut here ]------------ [ 74.089071][ T5166] WARNING: CPU: 0 PID: 5166 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 74.090549][ T5166] Modules linked in: [ 74.091153][ T5166] CPU: 0 PID: 5166 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 74.092391][ T5166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 74.094085][ T5166] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.095427][ T5166] pc : __btrfs_unlink_inode+0x908/0xb00 [ 74.096353][ T5166] lr : __btrfs_unlink_inode+0x908/0xb00 [ 74.097283][ T5166] sp : ffff80001fb77a60 [ 74.097986][ T5166] x29: ffff80001fb77b10 x28: ffff0000ce286000 x27: ffff0000e31a8010 [ 74.099296][ T5166] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cd181f20 [ 74.100563][ T5166] x23: 1ffff00003f6ef54 x22: dfff800000000000 x21: ffff0000e95c09d0 [ 74.101831][ T5166] x20: ffff0000def95108 x19: 1fffe0001bdf2a21 x18: 0000000000000001 [ 74.103034][ T5166] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 74.104268][ T5166] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 74.105494][ T5166] x11: 0000000000000000 x10: 0000000000000000 x9 : 01de020f275c0e00 [ 74.106767][ T5166] x8 : 01de020f275c0e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.107984][ T5166] x5 : ffff80001fb77358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 74.109192][ T5166] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.110381][ T5166] Call trace: [ 74.110877][ T5166] __btrfs_unlink_inode+0x908/0xb00 [ 74.111722][ T5166] btrfs_unlink+0x108/0x258 [ 74.112471][ T5166] vfs_unlink+0x2e0/0x4f4 [ 74.113179][ T5166] do_unlinkat+0x31c/0x600 [ 74.113810][ T5166] __arm64_sys_unlinkat+0xe0/0xfc [ 74.114620][ T5166] invoke_syscall+0x98/0x2b8 [ 74.115306][ T5166] el0_svc_common+0x138/0x258 [ 74.116045][ T5166] do_el0_svc+0x58/0x14c [ 74.116728][ T5166] el0_svc+0x78/0x1e0 [ 74.117340][ T5166] el0t_64_sync_handler+0xcc/0xe4 [ 74.118130][ T5166] el0t_64_sync+0x1a0/0x1a4 [ 74.118824][ T5166] irq event stamp: 79258 [ 74.119482][ T5166] hardirqs last enabled at (79257): [] __up_console_sem+0xb4/0x100 [ 74.121034][ T5166] hardirqs last disabled at (79258): [] el1_dbg+0x24/0x80 [ 74.122453][ T5166] softirqs last enabled at (79234): [] handle_softirqs+0xa4c/0xbf0 [ 74.124055][ T5166] softirqs last disabled at (79195): [] __irq_exit_rcu+0x240/0x440 [ 74.125671][ T5166] ---[ end trace b4216ca0bf74783f ]--- [ 74.129382][ T5166] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 74.130888][ T5166] BTRFS info (device loop0): forced readonly [ 74.173125][ T4919] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by udevd (4919) [ 74.323974][ T5187] loop0: detected capacity change from 0 to 32768 [ 74.433352][ T5187] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.434863][ T5187] BTRFS info (device loop0): using free space tree [ 74.435974][ T5187] BTRFS info (device loop0): has skinny extents [ 74.446555][ T5187] BTRFS info (device loop0): enabling ssd optimizations [ 74.451071][ T5187] FAULT_INJECTION: forcing a failure. [ 74.451071][ T5187] name failslab, interval 1, probability 0, space 0, times 0 [ 74.453163][ T5187] CPU: 0 PID: 5187 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 74.454402][ T5187] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 74.455852][ T5187] Call trace: [ 74.456290][ T5187] dump_backtrace+0x0/0x43c [ 74.456983][ T5187] show_stack+0x2c/0x3c [ 74.457597][ T5187] __dump_stack+0x30/0x40 [ 74.458222][ T5187] dump_stack_lvl+0xf8/0x160 [ 74.458987][ T5187] dump_stack+0x1c/0x5c [ 74.459707][ T5187] should_fail+0x3c0/0x51c [ 74.460395][ T5187] __should_failslab+0xbc/0x10c [ 74.461168][ T5187] should_failslab+0x10/0x28 [ 74.461881][ T5187] slab_pre_alloc_hook+0x64/0xec [ 74.462631][ T5187] kmem_cache_alloc_trace+0x98/0x3fc [ 74.463421][ T5187] btrfs_delete_delayed_dir_index+0x220/0x550 [ 74.464328][ T5187] __btrfs_unlink_inode+0x34c/0xb00 [ 74.465093][ T5187] btrfs_unlink+0x108/0x258 [ 74.465846][ T5187] vfs_unlink+0x2e0/0x4f4 [ 74.466591][ T5187] do_unlinkat+0x31c/0x600 [ 74.467341][ T5187] __arm64_sys_unlinkat+0xe0/0xfc [ 74.468166][ T5187] invoke_syscall+0x98/0x2b8 [ 74.468955][ T5187] el0_svc_common+0x138/0x258 [ 74.469749][ T5187] do_el0_svc+0x58/0x14c [ 74.470481][ T5187] el0_svc+0x78/0x1e0 [ 74.471132][ T5187] el0t_64_sync_handler+0xcc/0xe4 [ 74.471998][ T5187] el0t_64_sync+0x1a0/0x1a4 [ 74.474652][ T5187] ------------[ cut here ]------------ [ 74.475644][ T5187] WARNING: CPU: 0 PID: 5187 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 74.477146][ T5187] Modules linked in: [ 74.477736][ T5187] CPU: 0 PID: 5187 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 74.478994][ T5187] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 74.480431][ T5187] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.481501][ T5187] pc : __btrfs_unlink_inode+0x908/0xb00 [ 74.482275][ T5187] lr : __btrfs_unlink_inode+0x908/0xb00 [ 74.483106][ T5187] sp : ffff800020517a60 [ 74.483738][ T5187] x29: ffff800020517b10 x28: ffff0000cf21a000 x27: ffff0000e31a8410 [ 74.484942][ T5187] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000dbd3c0b0 [ 74.486161][ T5187] x23: 1ffff000040a2f54 x22: dfff800000000000 x21: ffff0000e95c3110 [ 74.487539][ T5187] x20: ffff0000def95268 x19: 1fffe0001bdf2a4d x18: 0000000000000001 [ 74.488874][ T5187] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 74.490092][ T5187] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 74.491464][ T5187] x11: 0000000000000000 x10: 0000000000000000 x9 : 3d0bf2e6547a4700 [ 74.492829][ T5187] x8 : 3d0bf2e6547a4700 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.494141][ T5187] x5 : ffff800020517358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 74.495424][ T5187] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.496831][ T5187] Call trace: [ 74.497348][ T5187] __btrfs_unlink_inode+0x908/0xb00 [ 74.498151][ T5187] btrfs_unlink+0x108/0x258 [ 74.498912][ T5187] vfs_unlink+0x2e0/0x4f4 [ 74.499640][ T5187] do_unlinkat+0x31c/0x600 [ 74.500334][ T5187] __arm64_sys_unlinkat+0xe0/0xfc [ 74.501166][ T5187] invoke_syscall+0x98/0x2b8 [ 74.501927][ T5187] el0_svc_common+0x138/0x258 [ 74.502697][ T5187] do_el0_svc+0x58/0x14c [ 74.503391][ T5187] el0_svc+0x78/0x1e0 [ 74.504057][ T5187] el0t_64_sync_handler+0xcc/0xe4 [ 74.504854][ T5187] el0t_64_sync+0x1a0/0x1a4 [ 74.505594][ T5187] irq event stamp: 79738 [ 74.506290][ T5187] hardirqs last enabled at (79737): [] __up_console_sem+0xb4/0x100 [ 74.507782][ T5187] hardirqs last disabled at (79738): [] el1_dbg+0x24/0x80 [ 74.509151][ T5187] softirqs last enabled at (79718): [] handle_softirqs+0xa4c/0xbf0 [ 74.510633][ T5187] softirqs last disabled at (79573): [] __irq_exit_rcu+0x240/0x440 [ 74.512061][ T5187] ---[ end trace b4216ca0bf747840 ]--- [ 74.513788][ T5187] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 74.515287][ T5187] BTRFS info (device loop0): forced readonly [ 74.678380][ T5209] loop0: detected capacity change from 0 to 32768 [ 74.772280][ T5209] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.19 (5209) [ 74.778188][ T5209] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.779596][ T5209] BTRFS info (device loop0): using free space tree [ 74.780569][ T5209] BTRFS info (device loop0): has skinny extents [ 74.788592][ T5209] BTRFS info (device loop0): enabling ssd optimizations [ 74.792924][ T5209] FAULT_INJECTION: forcing a failure. [ 74.792924][ T5209] name failslab, interval 1, probability 0, space 0, times 0 [ 74.794916][ T5209] CPU: 0 PID: 5209 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 74.796228][ T5209] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 74.797753][ T5209] Call trace: [ 74.798230][ T5209] dump_backtrace+0x0/0x43c [ 74.798909][ T5209] show_stack+0x2c/0x3c [ 74.799538][ T5209] __dump_stack+0x30/0x40 [ 74.800258][ T5209] dump_stack_lvl+0xf8/0x160 [ 74.801030][ T5209] dump_stack+0x1c/0x5c [ 74.801636][ T5209] should_fail+0x3c0/0x51c [ 74.802304][ T5209] __should_failslab+0xbc/0x10c [ 74.803127][ T5209] should_failslab+0x10/0x28 [ 74.803845][ T5209] slab_pre_alloc_hook+0x64/0xec [ 74.804667][ T5209] kmem_cache_alloc_trace+0x98/0x3fc [ 74.805541][ T5209] btrfs_delete_delayed_dir_index+0x220/0x550 [ 74.806564][ T5209] __btrfs_unlink_inode+0x34c/0xb00 [ 74.807466][ T5209] btrfs_unlink+0x108/0x258 [ 74.808250][ T5209] vfs_unlink+0x2e0/0x4f4 [ 74.808924][ T5209] do_unlinkat+0x31c/0x600 [ 74.809678][ T5209] __arm64_sys_unlinkat+0xe0/0xfc [ 74.810520][ T5209] invoke_syscall+0x98/0x2b8 [ 74.811267][ T5209] el0_svc_common+0x138/0x258 [ 74.811980][ T5209] do_el0_svc+0x58/0x14c [ 74.812646][ T5209] el0_svc+0x78/0x1e0 [ 74.813250][ T5209] el0t_64_sync_handler+0xcc/0xe4 [ 74.813974][ T5209] el0t_64_sync+0x1a0/0x1a4 [ 74.817826][ T5209] ------------[ cut here ]------------ [ 74.818779][ T5209] WARNING: CPU: 0 PID: 5209 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 74.820310][ T5209] Modules linked in: [ 74.820982][ T5209] CPU: 0 PID: 5209 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 74.822349][ T5209] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 74.823941][ T5209] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.825181][ T5209] pc : __btrfs_unlink_inode+0x908/0xb00 [ 74.826057][ T5209] lr : __btrfs_unlink_inode+0x908/0xb00 [ 74.826896][ T5209] sp : ffff800020247a60 [ 74.827524][ T5209] x29: ffff800020247b10 x28: ffff0000d08f6000 x27: ffff0000e31a8810 [ 74.828970][ T5209] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ebee80b0 [ 74.830267][ T5209] x23: 1ffff00004048f54 x22: dfff800000000000 x21: ffff0000e95c5850 [ 74.831528][ T5209] x20: ffff0000def953c8 x19: 1fffe0001bdf2a79 x18: 0000000000000001 [ 74.832776][ T5209] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 74.834059][ T5209] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 74.835298][ T5209] x11: 0000000000000000 x10: 0000000000000000 x9 : 832dc19411ba0600 [ 74.836551][ T5209] x8 : 832dc19411ba0600 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.837739][ T5209] x5 : ffff800020247358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 74.838942][ T5209] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.840232][ T5209] Call trace: [ 74.840785][ T5209] __btrfs_unlink_inode+0x908/0xb00 [ 74.841618][ T5209] btrfs_unlink+0x108/0x258 [ 74.842325][ T5209] vfs_unlink+0x2e0/0x4f4 [ 74.842978][ T5209] do_unlinkat+0x31c/0x600 [ 74.843651][ T5209] __arm64_sys_unlinkat+0xe0/0xfc [ 74.844401][ T5209] invoke_syscall+0x98/0x2b8 [ 74.845123][ T5209] el0_svc_common+0x138/0x258 [ 74.845871][ T5209] do_el0_svc+0x58/0x14c [ 74.846476][ T5209] el0_svc+0x78/0x1e0 [ 74.847072][ T5209] el0t_64_sync_handler+0xcc/0xe4 [ 74.847862][ T5209] el0t_64_sync+0x1a0/0x1a4 [ 74.848562][ T5209] irq event stamp: 79656 [ 74.849218][ T5209] hardirqs last enabled at (79655): [] __up_console_sem+0xb4/0x100 [ 74.850795][ T5209] hardirqs last disabled at (79656): [] el1_dbg+0x24/0x80 [ 74.852246][ T5209] softirqs last enabled at (79636): [] handle_softirqs+0xa4c/0xbf0 [ 74.853794][ T5209] softirqs last disabled at (79579): [] __irq_exit_rcu+0x240/0x440 [ 74.855361][ T5209] ---[ end trace b4216ca0bf747841 ]--- [ 74.857607][ T5209] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 74.859060][ T5209] BTRFS info (device loop0): forced readonly [ 74.995549][ T5238] loop0: detected capacity change from 0 to 32768 [ 75.036431][ T5238] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.20 (5238) [ 75.040983][ T5238] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.043414][ T5238] BTRFS info (device loop0): using free space tree [ 75.044452][ T5238] BTRFS info (device loop0): has skinny extents [ 75.052554][ T5238] BTRFS info (device loop0): enabling ssd optimizations [ 75.056911][ T5238] FAULT_INJECTION: forcing a failure. [ 75.056911][ T5238] name failslab, interval 1, probability 0, space 0, times 0 [ 75.058985][ T5238] CPU: 1 PID: 5238 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 75.060356][ T5238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 75.061991][ T5238] Call trace: [ 75.062528][ T5238] dump_backtrace+0x0/0x43c [ 75.063295][ T5238] show_stack+0x2c/0x3c [ 75.063999][ T5238] __dump_stack+0x30/0x40 [ 75.064676][ T5238] dump_stack_lvl+0xf8/0x160 [ 75.065407][ T5238] dump_stack+0x1c/0x5c [ 75.066076][ T5238] should_fail+0x3c0/0x51c [ 75.066732][ T5238] __should_failslab+0xbc/0x10c [ 75.067498][ T5238] should_failslab+0x10/0x28 [ 75.068232][ T5238] slab_pre_alloc_hook+0x64/0xec [ 75.069083][ T5238] kmem_cache_alloc+0x94/0x3e4 [ 75.069877][ T5238] btrfs_alloc_path+0x5c/0x68 [ 75.070636][ T5238] __btrfs_unlink_inode+0x1d8/0xb00 [ 75.071425][ T5238] btrfs_unlink+0x108/0x258 [ 75.072122][ T5238] vfs_unlink+0x2e0/0x4f4 [ 75.072848][ T5238] do_unlinkat+0x31c/0x600 [ 75.073584][ T5238] __arm64_sys_unlinkat+0xe0/0xfc [ 75.074373][ T5238] invoke_syscall+0x98/0x2b8 [ 75.075094][ T5238] el0_svc_common+0x138/0x258 [ 75.075770][ T5238] do_el0_svc+0x58/0x14c [ 75.076444][ T5238] el0_svc+0x78/0x1e0 [ 75.077109][ T5238] el0t_64_sync_handler+0xcc/0xe4 [ 75.077896][ T5238] el0t_64_sync+0x1a0/0x1a4 [ 75.131713][ T4919] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4919) [ 75.235448][ T5259] loop0: detected capacity change from 0 to 32768 [ 75.308403][ T5259] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.309840][ T5259] BTRFS info (device loop0): using free space tree [ 75.310887][ T5259] BTRFS info (device loop0): has skinny extents [ 75.319922][ T5259] BTRFS info (device loop0): enabling ssd optimizations [ 75.325744][ T5259] FAULT_INJECTION: forcing a failure. [ 75.325744][ T5259] name failslab, interval 1, probability 0, space 0, times 0 [ 75.327849][ T5259] CPU: 0 PID: 5259 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 75.329144][ T5259] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 75.330801][ T5259] Call trace: [ 75.331371][ T5259] dump_backtrace+0x0/0x43c [ 75.332143][ T5259] show_stack+0x2c/0x3c [ 75.332834][ T5259] __dump_stack+0x30/0x40 [ 75.333518][ T5259] dump_stack_lvl+0xf8/0x160 [ 75.334289][ T5259] dump_stack+0x1c/0x5c [ 75.334986][ T5259] should_fail+0x3c0/0x51c [ 75.335656][ T5259] __should_failslab+0xbc/0x10c [ 75.336434][ T5259] should_failslab+0x10/0x28 [ 75.337226][ T5259] slab_pre_alloc_hook+0x64/0xec [ 75.338037][ T5259] kmem_cache_alloc_trace+0x98/0x3fc [ 75.338884][ T5259] btrfs_delete_delayed_dir_index+0x220/0x550 [ 75.339950][ T5259] __btrfs_unlink_inode+0x34c/0xb00 [ 75.340847][ T5259] btrfs_unlink+0x108/0x258 [ 75.341602][ T5259] vfs_unlink+0x2e0/0x4f4 [ 75.342357][ T5259] do_unlinkat+0x31c/0x600 [ 75.343162][ T5259] __arm64_sys_unlinkat+0xe0/0xfc [ 75.344035][ T5259] invoke_syscall+0x98/0x2b8 [ 75.344799][ T5259] el0_svc_common+0x138/0x258 [ 75.345536][ T5259] do_el0_svc+0x58/0x14c [ 75.346183][ T5259] el0_svc+0x78/0x1e0 [ 75.346807][ T5259] el0t_64_sync_handler+0xcc/0xe4 [ 75.347654][ T5259] el0t_64_sync+0x1a0/0x1a4 [ 75.350667][ T5259] ------------[ cut here ]------------ [ 75.351646][ T5259] WARNING: CPU: 0 PID: 5259 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 75.353092][ T5259] Modules linked in: [ 75.353664][ T5259] CPU: 0 PID: 5259 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 75.354964][ T5259] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 75.356587][ T5259] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.357879][ T5259] pc : __btrfs_unlink_inode+0x908/0xb00 [ 75.358710][ T5259] lr : __btrfs_unlink_inode+0x908/0xb00 [ 75.359656][ T5259] sp : ffff8000209a7a60 [ 75.360316][ T5259] x29: ffff8000209a7b10 x28: ffff0000de3f8000 x27: ffff0000e31a9010 [ 75.361587][ T5259] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c2be8dc0 [ 75.362885][ T5259] x23: 1ffff00004134f54 x22: dfff800000000000 x21: ffff0000e957a740 [ 75.364107][ T5259] x20: ffff0000def95738 x19: 1fffe0001bdf2ae7 x18: 0000000000000001 [ 75.365477][ T5259] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 75.366871][ T5259] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 75.368300][ T5259] x11: 0000000000000000 x10: 0000000000000000 x9 : 6b1e862525da3100 [ 75.369643][ T5259] x8 : 6b1e862525da3100 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.370935][ T5259] x5 : ffff8000209a7358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 75.372205][ T5259] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.373570][ T5259] Call trace: [ 75.374139][ T5259] __btrfs_unlink_inode+0x908/0xb00 [ 75.375038][ T5259] btrfs_unlink+0x108/0x258 [ 75.375799][ T5259] vfs_unlink+0x2e0/0x4f4 [ 75.376521][ T5259] do_unlinkat+0x31c/0x600 [ 75.377271][ T5259] __arm64_sys_unlinkat+0xe0/0xfc [ 75.378097][ T5259] invoke_syscall+0x98/0x2b8 [ 75.378884][ T5259] el0_svc_common+0x138/0x258 [ 75.379717][ T5259] do_el0_svc+0x58/0x14c [ 75.380443][ T5259] el0_svc+0x78/0x1e0 [ 75.381144][ T5259] el0t_64_sync_handler+0xcc/0xe4 [ 75.381981][ T5259] el0t_64_sync+0x1a0/0x1a4 [ 75.382723][ T5259] irq event stamp: 79086 [ 75.383399][ T5259] hardirqs last enabled at (79085): [] __up_console_sem+0xb4/0x100 [ 75.384889][ T5259] hardirqs last disabled at (79086): [] el1_dbg+0x24/0x80 [ 75.386301][ T5259] softirqs last enabled at (79066): [] handle_softirqs+0xa4c/0xbf0 [ 75.387805][ T5259] softirqs last disabled at (79013): [] __irq_exit_rcu+0x240/0x440 [ 75.389321][ T5259] ---[ end trace b4216ca0bf747842 ]--- [ 75.392447][ T5259] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 75.394149][ T5259] BTRFS info (device loop0): forced readonly [ 75.542310][ T4353] Bluetooth: hci1: command 0x041b tx timeout [ 75.573319][ T5282] loop0: detected capacity change from 0 to 32768 [ 75.627939][ T5282] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.22 (5282) [ 75.632639][ T5282] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.634091][ T5282] BTRFS info (device loop0): using free space tree [ 75.635090][ T5282] BTRFS info (device loop0): has skinny extents [ 75.648107][ T5282] BTRFS info (device loop0): enabling ssd optimizations [ 75.652097][ T5282] FAULT_INJECTION: forcing a failure. [ 75.652097][ T5282] name failslab, interval 1, probability 0, space 0, times 0 [ 75.654460][ T5282] CPU: 0 PID: 5282 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 75.655745][ T5282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 75.657310][ T5282] Call trace: [ 75.657844][ T5282] dump_backtrace+0x0/0x43c [ 75.658575][ T5282] show_stack+0x2c/0x3c [ 75.659184][ T5282] __dump_stack+0x30/0x40 [ 75.659996][ T5282] dump_stack_lvl+0xf8/0x160 [ 75.660764][ T5282] dump_stack+0x1c/0x5c [ 75.661431][ T5282] should_fail+0x3c0/0x51c [ 75.662203][ T5282] __should_failslab+0xbc/0x10c [ 75.663061][ T5282] should_failslab+0x10/0x28 [ 75.663877][ T5282] slab_pre_alloc_hook+0x64/0xec [ 75.664675][ T5282] kmem_cache_alloc_trace+0x98/0x3fc [ 75.665462][ T5282] btrfs_delete_delayed_dir_index+0x220/0x550 [ 75.666438][ T5282] __btrfs_unlink_inode+0x34c/0xb00 [ 75.667294][ T5282] btrfs_unlink+0x108/0x258 [ 75.667965][ T5282] vfs_unlink+0x2e0/0x4f4 [ 75.668701][ T5282] do_unlinkat+0x31c/0x600 [ 75.669437][ T5282] __arm64_sys_unlinkat+0xe0/0xfc [ 75.670281][ T5282] invoke_syscall+0x98/0x2b8 [ 75.671068][ T5282] el0_svc_common+0x138/0x258 [ 75.671915][ T5282] do_el0_svc+0x58/0x14c [ 75.672619][ T5282] el0_svc+0x78/0x1e0 [ 75.673327][ T5282] el0t_64_sync_handler+0xcc/0xe4 [ 75.674135][ T5282] el0t_64_sync+0x1a0/0x1a4 [ 75.675741][ T5282] ------------[ cut here ]------------ [ 75.676674][ T5282] WARNING: CPU: 0 PID: 5282 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 75.678184][ T5282] Modules linked in: [ 75.678801][ T5282] CPU: 0 PID: 5282 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 75.680218][ T5282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 75.681854][ T5282] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.683108][ T5282] pc : __btrfs_unlink_inode+0x908/0xb00 [ 75.684020][ T5282] lr : __btrfs_unlink_inode+0x908/0xb00 [ 75.684917][ T5282] sp : ffff8000209f7a60 [ 75.685561][ T5282] x29: ffff8000209f7b10 x28: ffff0000dd054000 x27: ffff0000e31a9410 [ 75.686860][ T5282] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d18e32c0 [ 75.688131][ T5282] x23: 1ffff0000413ef54 x22: dfff800000000000 x21: ffff0000e957ce80 [ 75.689413][ T5282] x20: ffff0000def95898 x19: 1fffe0001bdf2b13 x18: 0000000000000001 [ 75.690671][ T5282] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 75.691909][ T5282] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 75.693257][ T5282] x11: 0000000000000000 x10: 0000000000000000 x9 : e09655c63d9d4400 [ 75.694499][ T5282] x8 : e09655c63d9d4400 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.695826][ T5282] x5 : ffff8000209f7358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 75.697151][ T5282] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.698439][ T5282] Call trace: [ 75.698948][ T5282] __btrfs_unlink_inode+0x908/0xb00 [ 75.699797][ T5282] btrfs_unlink+0x108/0x258 [ 75.700510][ T5282] vfs_unlink+0x2e0/0x4f4 [ 75.701207][ T5282] do_unlinkat+0x31c/0x600 [ 75.701944][ T5282] __arm64_sys_unlinkat+0xe0/0xfc [ 75.702725][ T5282] invoke_syscall+0x98/0x2b8 [ 75.703476][ T5282] el0_svc_common+0x138/0x258 [ 75.704244][ T5282] do_el0_svc+0x58/0x14c [ 75.704957][ T5282] el0_svc+0x78/0x1e0 [ 75.705588][ T5282] el0t_64_sync_handler+0xcc/0xe4 [ 75.706436][ T5282] el0t_64_sync+0x1a0/0x1a4 [ 75.707187][ T5282] irq event stamp: 79296 [ 75.707907][ T5282] hardirqs last enabled at (79295): [] __up_console_sem+0xb4/0x100 [ 75.709514][ T5282] hardirqs last disabled at (79296): [] el1_dbg+0x24/0x80 [ 75.710951][ T5282] softirqs last enabled at (79276): [] handle_softirqs+0xa4c/0xbf0 [ 75.712574][ T5282] softirqs last disabled at (79251): [] __irq_exit_rcu+0x240/0x440 [ 75.714068][ T5282] ---[ end trace b4216ca0bf747843 ]--- [ 75.716703][ T5282] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 75.718224][ T5282] BTRFS info (device loop0): forced readonly [ 75.851756][ T5304] loop0: detected capacity change from 0 to 32768 [ 75.916179][ T5304] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.23 (5304) [ 75.919175][ T5304] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.920590][ T5304] BTRFS info (device loop0): using free space tree [ 75.921578][ T5304] BTRFS info (device loop0): has skinny extents [ 75.943317][ T5304] BTRFS info (device loop0): enabling ssd optimizations [ 75.947419][ T5304] FAULT_INJECTION: forcing a failure. [ 75.947419][ T5304] name failslab, interval 1, probability 0, space 0, times 0 [ 75.949312][ T5304] CPU: 1 PID: 5304 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 75.950579][ T5304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 75.951972][ T5304] Call trace: [ 75.952446][ T5304] dump_backtrace+0x0/0x43c [ 75.953100][ T5304] show_stack+0x2c/0x3c [ 75.953690][ T5304] __dump_stack+0x30/0x40 [ 75.954374][ T5304] dump_stack_lvl+0xf8/0x160 [ 75.955029][ T5304] dump_stack+0x1c/0x5c [ 75.955687][ T5304] should_fail+0x3c0/0x51c [ 75.956384][ T5304] __should_failslab+0xbc/0x10c [ 75.957202][ T5304] should_failslab+0x10/0x28 [ 75.957991][ T5304] slab_pre_alloc_hook+0x64/0xec [ 75.958807][ T5304] kmem_cache_alloc+0x94/0x3e4 [ 75.959566][ T5304] btrfs_alloc_path+0x5c/0x68 [ 75.960306][ T5304] __btrfs_unlink_inode+0x1d8/0xb00 [ 75.961167][ T5304] btrfs_unlink+0x108/0x258 [ 75.961907][ T5304] vfs_unlink+0x2e0/0x4f4 [ 75.962577][ T5304] do_unlinkat+0x31c/0x600 [ 75.963275][ T5304] __arm64_sys_unlinkat+0xe0/0xfc [ 75.964024][ T5304] invoke_syscall+0x98/0x2b8 [ 75.964747][ T5304] el0_svc_common+0x138/0x258 [ 75.965480][ T5304] do_el0_svc+0x58/0x14c [ 75.966152][ T5304] el0_svc+0x78/0x1e0 [ 75.966792][ T5304] el0t_64_sync_handler+0xcc/0xe4 [ 75.967643][ T5304] el0t_64_sync+0x1a0/0x1a4 [ 76.149029][ T5325] loop0: detected capacity change from 0 to 32768 [ 76.204703][ T5325] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.24 (5325) [ 76.207752][ T5325] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.209249][ T5325] BTRFS info (device loop0): using free space tree [ 76.210259][ T5325] BTRFS info (device loop0): has skinny extents [ 76.219414][ T5325] BTRFS info (device loop0): enabling ssd optimizations [ 76.225525][ T5325] FAULT_INJECTION: forcing a failure. [ 76.225525][ T5325] name failslab, interval 1, probability 0, space 0, times 0 [ 76.227666][ T5325] CPU: 0 PID: 5325 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 76.229026][ T5325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.230689][ T5325] Call trace: [ 76.231217][ T5325] dump_backtrace+0x0/0x43c [ 76.231925][ T5325] show_stack+0x2c/0x3c [ 76.232574][ T5325] __dump_stack+0x30/0x40 [ 76.233268][ T5325] dump_stack_lvl+0xf8/0x160 [ 76.234068][ T5325] dump_stack+0x1c/0x5c [ 76.234763][ T5325] should_fail+0x3c0/0x51c [ 76.235494][ T5325] __should_failslab+0xbc/0x10c [ 76.236291][ T5325] should_failslab+0x10/0x28 [ 76.237056][ T5325] slab_pre_alloc_hook+0x64/0xec [ 76.237855][ T5325] kmem_cache_alloc_trace+0x98/0x3fc [ 76.238661][ T5325] btrfs_delete_delayed_dir_index+0x220/0x550 [ 76.239673][ T5325] __btrfs_unlink_inode+0x34c/0xb00 [ 76.240528][ T5325] btrfs_unlink+0x108/0x258 [ 76.241263][ T5325] vfs_unlink+0x2e0/0x4f4 [ 76.242004][ T5325] do_unlinkat+0x31c/0x600 [ 76.242754][ T5325] __arm64_sys_unlinkat+0xe0/0xfc [ 76.243622][ T5325] invoke_syscall+0x98/0x2b8 [ 76.244355][ T5325] el0_svc_common+0x138/0x258 [ 76.245166][ T5325] do_el0_svc+0x58/0x14c [ 76.245862][ T5325] el0_svc+0x78/0x1e0 [ 76.246508][ T5325] el0t_64_sync_handler+0xcc/0xe4 [ 76.247269][ T5325] el0t_64_sync+0x1a0/0x1a4 [ 76.249343][ T5325] ------------[ cut here ]------------ [ 76.250687][ T5325] WARNING: CPU: 0 PID: 5325 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 76.252206][ T5325] Modules linked in: [ 76.252789][ T5325] CPU: 0 PID: 5325 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 76.254067][ T5325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.255766][ T5325] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.257138][ T5325] pc : __btrfs_unlink_inode+0x908/0xb00 [ 76.258080][ T5325] lr : __btrfs_unlink_inode+0x908/0xb00 [ 76.258967][ T5325] sp : ffff800020c87a60 [ 76.259624][ T5325] x29: ffff800020c87b10 x28: ffff0000d63ee000 x27: ffff0000e31a9810 [ 76.260929][ T5325] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d25b20b0 [ 76.262322][ T5325] x23: 1ffff00004190f54 x22: dfff800000000000 x21: ffff0000e957e220 [ 76.263645][ T5325] x20: ffff0000def959f8 x19: 1fffe0001bdf2b3f x18: 1fffe00034218b96 [ 76.265000][ T5325] x17: 1fffe00034218b96 x16: ffff8000111bc6d8 x15: ffff80001420ed80 [ 76.266244][ T5325] x14: ffff0001a10c5cc0 x13: 1ffff0000282e06b x12: 0000000000ff0100 [ 76.267477][ T5325] x11: 0000000000000000 x10: 0000000000000000 x9 : 86eaaeba0ae66400 [ 76.268644][ T5325] x8 : 86eaaeba0ae66400 x7 : 0000000000000000 x6 : 0000000000000000 [ 76.269856][ T5325] x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800008504278 [ 76.270975][ T5325] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.272131][ T5325] Call trace: [ 76.272670][ T5325] __btrfs_unlink_inode+0x908/0xb00 [ 76.273499][ T5325] btrfs_unlink+0x108/0x258 [ 76.274249][ T5325] vfs_unlink+0x2e0/0x4f4 [ 76.274943][ T5325] do_unlinkat+0x31c/0x600 [ 76.275670][ T5325] __arm64_sys_unlinkat+0xe0/0xfc [ 76.276441][ T5325] invoke_syscall+0x98/0x2b8 [ 76.277165][ T5325] el0_svc_common+0x138/0x258 [ 76.277890][ T5325] do_el0_svc+0x58/0x14c [ 76.278562][ T5325] el0_svc+0x78/0x1e0 [ 76.279181][ T5325] el0t_64_sync_handler+0xcc/0xe4 [ 76.279998][ T5325] el0t_64_sync+0x1a0/0x1a4 [ 76.280690][ T5325] irq event stamp: 79752 [ 76.281289][ T5325] hardirqs last enabled at (79751): [] finish_lock_switch+0xb0/0x1c4 [ 76.282843][ T5325] hardirqs last disabled at (79752): [] el1_dbg+0x24/0x80 [ 76.284262][ T5325] softirqs last enabled at (79724): [] handle_softirqs+0xa4c/0xbf0 [ 76.285735][ T5325] softirqs last disabled at (79675): [] __irq_exit_rcu+0x240/0x440 [ 76.287181][ T5325] ---[ end trace b4216ca0bf747844 ]--- [ 76.289924][ T5325] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 76.291319][ T5325] BTRFS info (device loop0): forced readonly [ 76.428184][ T5347] loop0: detected capacity change from 0 to 32768 [ 76.432488][ T5347] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.25 (5347) [ 76.436221][ T5347] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.437685][ T5347] BTRFS info (device loop0): using free space tree [ 76.438741][ T5347] BTRFS info (device loop0): has skinny extents [ 76.454786][ T5347] BTRFS info (device loop0): enabling ssd optimizations [ 76.459056][ T5347] FAULT_INJECTION: forcing a failure. [ 76.459056][ T5347] name failslab, interval 1, probability 0, space 0, times 0 [ 76.461072][ T5347] CPU: 1 PID: 5347 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 76.462521][ T5347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.464065][ T5347] Call trace: [ 76.464580][ T5347] dump_backtrace+0x0/0x43c [ 76.465292][ T5347] show_stack+0x2c/0x3c [ 76.465975][ T5347] __dump_stack+0x30/0x40 [ 76.466673][ T5347] dump_stack_lvl+0xf8/0x160 [ 76.467387][ T5347] dump_stack+0x1c/0x5c [ 76.468054][ T5347] should_fail+0x3c0/0x51c [ 76.468774][ T5347] __should_failslab+0xbc/0x10c [ 76.469575][ T5347] should_failslab+0x10/0x28 [ 76.470378][ T5347] slab_pre_alloc_hook+0x64/0xec [ 76.471205][ T5347] kmem_cache_alloc_trace+0x98/0x3fc [ 76.472077][ T5347] btrfs_delete_delayed_dir_index+0x220/0x550 [ 76.473078][ T5347] __btrfs_unlink_inode+0x34c/0xb00 [ 76.473865][ T5347] btrfs_unlink+0x108/0x258 [ 76.474573][ T5347] vfs_unlink+0x2e0/0x4f4 [ 76.475276][ T5347] do_unlinkat+0x31c/0x600 [ 76.475919][ T5347] __arm64_sys_unlinkat+0xe0/0xfc [ 76.476671][ T5347] invoke_syscall+0x98/0x2b8 [ 76.477373][ T5347] el0_svc_common+0x138/0x258 [ 76.478079][ T5347] do_el0_svc+0x58/0x14c [ 76.478786][ T5347] el0_svc+0x78/0x1e0 [ 76.479395][ T5347] el0t_64_sync_handler+0xcc/0xe4 [ 76.480268][ T5347] el0t_64_sync+0x1a0/0x1a4 [ 76.482137][ T5347] ------------[ cut here ]------------ [ 76.492350][ T5347] WARNING: CPU: 0 PID: 5347 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 76.493971][ T5347] Modules linked in: [ 76.494555][ T5347] CPU: 0 PID: 5347 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 76.495961][ T5347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.497640][ T5347] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.498996][ T5347] pc : __btrfs_unlink_inode+0x908/0xb00 [ 76.499865][ T5347] lr : __btrfs_unlink_inode+0x908/0xb00 [ 76.500797][ T5347] sp : ffff800020ab7a60 [ 76.501505][ T5347] x29: ffff800020ab7b10 x28: ffff0000e5500000 x27: ffff0000e9544c10 [ 76.502847][ T5347] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c2462840 [ 76.504105][ T5347] x23: 1ffff00004156f54 x22: dfff800000000000 x21: ffff0000e95e9d70 [ 76.505407][ T5347] x20: ffff0000dee27738 x19: 1fffe0001bdc4ee7 x18: 0000000000000001 [ 76.506776][ T5347] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 76.508037][ T5347] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 76.509364][ T5347] x11: 0000000000000000 x10: 0000000000000000 x9 : 42abda6e4519b800 [ 76.510673][ T5347] x8 : 42abda6e4519b800 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.512007][ T5347] x5 : ffff800020ab7358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 76.513332][ T5347] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.514584][ T5347] Call trace: [ 76.515147][ T5347] __btrfs_unlink_inode+0x908/0xb00 [ 76.515993][ T5347] btrfs_unlink+0x108/0x258 [ 76.516722][ T5347] vfs_unlink+0x2e0/0x4f4 [ 76.517437][ T5347] do_unlinkat+0x31c/0x600 [ 76.518157][ T5347] __arm64_sys_unlinkat+0xe0/0xfc [ 76.518950][ T5347] invoke_syscall+0x98/0x2b8 [ 76.519674][ T5347] el0_svc_common+0x138/0x258 [ 76.520364][ T5347] do_el0_svc+0x58/0x14c [ 76.521072][ T5347] el0_svc+0x78/0x1e0 [ 76.521792][ T5347] el0t_64_sync_handler+0xcc/0xe4 [ 76.522617][ T5347] el0t_64_sync+0x1a0/0x1a4 [ 76.523390][ T5347] irq event stamp: 79382 [ 76.524101][ T5347] hardirqs last enabled at (79381): [] __up_console_sem+0xb4/0x100 [ 76.525676][ T5347] hardirqs last disabled at (79382): [] el1_dbg+0x24/0x80 [ 76.527028][ T5347] softirqs last enabled at (79368): [] handle_softirqs+0xa4c/0xbf0 [ 76.528514][ T5347] softirqs last disabled at (79361): [] __irq_exit_rcu+0x240/0x440 [ 76.530018][ T5347] ---[ end trace b4216ca0bf747845 ]--- [ 76.535739][ T5347] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 76.537209][ T5347] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:16 executed programs: 13 [ 76.721292][ T5369] loop0: detected capacity change from 0 to 32768 [ 76.773535][ T5369] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.26 (5369) [ 76.776679][ T5369] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.778208][ T5369] BTRFS info (device loop0): using free space tree [ 76.779166][ T5369] BTRFS info (device loop0): has skinny extents [ 76.791738][ T5369] BTRFS info (device loop0): enabling ssd optimizations [ 76.796711][ T5369] FAULT_INJECTION: forcing a failure. [ 76.796711][ T5369] name failslab, interval 1, probability 0, space 0, times 0 [ 76.798784][ T5369] CPU: 1 PID: 5369 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 76.800053][ T5369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.801705][ T5369] Call trace: [ 76.802204][ T5369] dump_backtrace+0x0/0x43c [ 76.802888][ T5369] show_stack+0x2c/0x3c [ 76.803564][ T5369] __dump_stack+0x30/0x40 [ 76.804278][ T5369] dump_stack_lvl+0xf8/0x160 [ 76.805062][ T5369] dump_stack+0x1c/0x5c [ 76.805734][ T5369] should_fail+0x3c0/0x51c [ 76.806462][ T5369] __should_failslab+0xbc/0x10c [ 76.807304][ T5369] should_failslab+0x10/0x28 [ 76.808092][ T5369] slab_pre_alloc_hook+0x64/0xec [ 76.808924][ T5369] kmem_cache_alloc_trace+0x98/0x3fc [ 76.809757][ T5369] btrfs_delete_delayed_dir_index+0x220/0x550 [ 76.810775][ T5369] __btrfs_unlink_inode+0x34c/0xb00 [ 76.811636][ T5369] btrfs_unlink+0x108/0x258 [ 76.812368][ T5369] vfs_unlink+0x2e0/0x4f4 [ 76.813069][ T5369] do_unlinkat+0x31c/0x600 [ 76.813784][ T5369] __arm64_sys_unlinkat+0xe0/0xfc [ 76.814575][ T5369] invoke_syscall+0x98/0x2b8 [ 76.815304][ T5369] el0_svc_common+0x138/0x258 [ 76.816102][ T5369] do_el0_svc+0x58/0x14c [ 76.816812][ T5369] el0_svc+0x78/0x1e0 [ 76.817430][ T5369] el0t_64_sync_handler+0xcc/0xe4 [ 76.818234][ T5369] el0t_64_sync+0x1a0/0x1a4 [ 76.819078][ T5369] ------------[ cut here ]------------ [ 76.820026][ T5369] WARNING: CPU: 1 PID: 5369 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 76.821525][ T5369] Modules linked in: [ 76.822142][ T5369] CPU: 1 PID: 5369 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 76.823442][ T5369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.825074][ T5369] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.826337][ T5369] pc : __btrfs_unlink_inode+0x908/0xb00 [ 76.827202][ T5369] lr : __btrfs_unlink_inode+0x908/0xb00 [ 76.828070][ T5369] sp : ffff800020f37a60 [ 76.828693][ T5369] x29: ffff800020f37b10 x28: ffff0000ef5d8000 x27: ffff0000e31a9c10 [ 76.829840][ T5369] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c2462a50 [ 76.831091][ T5369] x23: 1ffff000041e6f54 x22: dfff800000000000 x21: ffff0000e94793a0 [ 76.832194][ T5369] x20: ffff0000dee277e8 x19: 1fffe0001bdc4efd x18: 0000000000000001 [ 76.833385][ T5369] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 76.834762][ T5369] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 76.836094][ T5369] x11: 0000000000000000 x10: 0000000000000000 x9 : b33f62c7ddfdfe00 [ 76.837416][ T5369] x8 : b33f62c7ddfdfe00 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.838722][ T5369] x5 : ffff800020f37358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 76.840041][ T5369] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.841380][ T5369] Call trace: [ 76.841921][ T5369] __btrfs_unlink_inode+0x908/0xb00 [ 76.842746][ T5369] btrfs_unlink+0x108/0x258 [ 76.843458][ T5369] vfs_unlink+0x2e0/0x4f4 [ 76.844163][ T5369] do_unlinkat+0x31c/0x600 [ 76.844856][ T5369] __arm64_sys_unlinkat+0xe0/0xfc [ 76.845638][ T5369] invoke_syscall+0x98/0x2b8 [ 76.846346][ T5369] el0_svc_common+0x138/0x258 [ 76.847144][ T5369] do_el0_svc+0x58/0x14c [ 76.847812][ T5369] el0_svc+0x78/0x1e0 [ 76.848451][ T5369] el0t_64_sync_handler+0xcc/0xe4 [ 76.849207][ T5369] el0t_64_sync+0x1a0/0x1a4 [ 76.849931][ T5369] irq event stamp: 79090 [ 76.850608][ T5369] hardirqs last enabled at (79089): [] __up_console_sem+0xb4/0x100 [ 76.852159][ T5369] hardirqs last disabled at (79090): [] el1_dbg+0x24/0x80 [ 76.853508][ T5369] softirqs last enabled at (79070): [] handle_softirqs+0xa4c/0xbf0 [ 76.854978][ T5369] softirqs last disabled at (79053): [] __irq_exit_rcu+0x240/0x440 [ 76.856485][ T5369] ---[ end trace b4216ca0bf747846 ]--- [ 76.857947][ T5369] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 76.859468][ T5369] BTRFS info (device loop0): forced readonly [ 76.999470][ T5391] loop0: detected capacity change from 0 to 32768 [ 77.007176][ T5391] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.27 (5391) [ 77.011571][ T5391] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.013378][ T5391] BTRFS info (device loop0): using free space tree [ 77.014363][ T5391] BTRFS info (device loop0): has skinny extents [ 77.021078][ T5391] BTRFS info (device loop0): enabling ssd optimizations [ 77.026014][ T5391] FAULT_INJECTION: forcing a failure. [ 77.026014][ T5391] name failslab, interval 1, probability 0, space 0, times 0 [ 77.028578][ T5391] CPU: 0 PID: 5391 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 77.029935][ T5391] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.031571][ T5391] Call trace: [ 77.032150][ T5391] dump_backtrace+0x0/0x43c [ 77.032910][ T5391] show_stack+0x2c/0x3c [ 77.033599][ T5391] __dump_stack+0x30/0x40 [ 77.034364][ T5391] dump_stack_lvl+0xf8/0x160 [ 77.035154][ T5391] dump_stack+0x1c/0x5c [ 77.035777][ T5391] should_fail+0x3c0/0x51c [ 77.036494][ T5391] __should_failslab+0xbc/0x10c [ 77.037289][ T5391] should_failslab+0x10/0x28 [ 77.038024][ T5391] slab_pre_alloc_hook+0x64/0xec [ 77.038814][ T5391] kmem_cache_alloc_trace+0x98/0x3fc [ 77.039727][ T5391] btrfs_delete_delayed_dir_index+0x220/0x550 [ 77.040693][ T5391] __btrfs_unlink_inode+0x34c/0xb00 [ 77.041618][ T5391] btrfs_unlink+0x108/0x258 [ 77.042398][ T5391] vfs_unlink+0x2e0/0x4f4 [ 77.043090][ T5391] do_unlinkat+0x31c/0x600 [ 77.043795][ T5391] __arm64_sys_unlinkat+0xe0/0xfc [ 77.044596][ T5391] invoke_syscall+0x98/0x2b8 [ 77.045343][ T5391] el0_svc_common+0x138/0x258 [ 77.046163][ T5391] do_el0_svc+0x58/0x14c [ 77.046875][ T5391] el0_svc+0x78/0x1e0 [ 77.047561][ T5391] el0t_64_sync_handler+0xcc/0xe4 [ 77.048366][ T5391] el0t_64_sync+0x1a0/0x1a4 [ 77.050458][ T5391] ------------[ cut here ]------------ [ 77.051393][ T5391] WARNING: CPU: 0 PID: 5391 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 77.052776][ T5391] Modules linked in: [ 77.053345][ T5391] CPU: 0 PID: 5391 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 77.054757][ T5391] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.056410][ T5391] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.057744][ T5391] pc : __btrfs_unlink_inode+0x908/0xb00 [ 77.058625][ T5391] lr : __btrfs_unlink_inode+0x908/0xb00 [ 77.059470][ T5391] sp : ffff8000209a7a60 [ 77.060138][ T5391] x29: ffff8000209a7b10 x28: ffff0000ec300000 x27: ffff0000e31aa010 [ 77.061404][ T5391] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cad6bc60 [ 77.062736][ T5391] x23: 1ffff00004134f54 x22: dfff800000000000 x21: ffff0000e947bae0 [ 77.064046][ T5391] x20: ffff0000def95c08 x19: 1fffe0001bdf2b81 x18: 0000000000000001 [ 77.065335][ T5391] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 77.066581][ T5391] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 77.067844][ T5391] x11: 0000000000000000 x10: 0000000000000000 x9 : dc8520bd8b6e1100 [ 77.069152][ T5391] x8 : dc8520bd8b6e1100 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.070457][ T5391] x5 : ffff8000209a7358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 77.071794][ T5391] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.073107][ T5391] Call trace: [ 77.073614][ T5391] __btrfs_unlink_inode+0x908/0xb00 [ 77.074431][ T5391] btrfs_unlink+0x108/0x258 [ 77.075219][ T5391] vfs_unlink+0x2e0/0x4f4 [ 77.075993][ T5391] do_unlinkat+0x31c/0x600 [ 77.076772][ T5391] __arm64_sys_unlinkat+0xe0/0xfc [ 77.077565][ T5391] invoke_syscall+0x98/0x2b8 [ 77.078279][ T5391] el0_svc_common+0x138/0x258 [ 77.079071][ T5391] do_el0_svc+0x58/0x14c [ 77.079788][ T5391] el0_svc+0x78/0x1e0 [ 77.080484][ T5391] el0t_64_sync_handler+0xcc/0xe4 [ 77.081371][ T5391] el0t_64_sync+0x1a0/0x1a4 [ 77.082100][ T5391] irq event stamp: 79116 [ 77.082770][ T5391] hardirqs last enabled at (79115): [] __up_console_sem+0xb4/0x100 [ 77.084213][ T5391] hardirqs last disabled at (79116): [] el1_dbg+0x24/0x80 [ 77.085677][ T5391] softirqs last enabled at (79096): [] handle_softirqs+0xa4c/0xbf0 [ 77.087316][ T5391] softirqs last disabled at (79085): [] __irq_exit_rcu+0x240/0x440 [ 77.088951][ T5391] ---[ end trace b4216ca0bf747847 ]--- [ 77.092102][ T5391] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 77.094070][ T5391] BTRFS info (device loop0): forced readonly [ 77.227116][ T5413] loop0: detected capacity change from 0 to 32768 [ 77.264202][ T5413] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.28 (5413) [ 77.267245][ T5413] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.268606][ T5413] BTRFS info (device loop0): using free space tree [ 77.269819][ T5413] BTRFS info (device loop0): has skinny extents [ 77.277348][ T5413] BTRFS info (device loop0): enabling ssd optimizations [ 77.281654][ T5413] FAULT_INJECTION: forcing a failure. [ 77.281654][ T5413] name failslab, interval 1, probability 0, space 0, times 0 [ 77.283956][ T5413] CPU: 1 PID: 5413 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 77.285367][ T5413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.286974][ T5413] Call trace: [ 77.287525][ T5413] dump_backtrace+0x0/0x43c [ 77.288205][ T5413] show_stack+0x2c/0x3c [ 77.288919][ T5413] __dump_stack+0x30/0x40 [ 77.289618][ T5413] dump_stack_lvl+0xf8/0x160 [ 77.290359][ T5413] dump_stack+0x1c/0x5c [ 77.290987][ T5413] should_fail+0x3c0/0x51c [ 77.291663][ T5413] __should_failslab+0xbc/0x10c [ 77.292447][ T5413] should_failslab+0x10/0x28 [ 77.293211][ T5413] slab_pre_alloc_hook+0x64/0xec [ 77.294038][ T5413] kmem_cache_alloc+0x94/0x3e4 [ 77.294831][ T5413] btrfs_alloc_path+0x5c/0x68 [ 77.295534][ T5413] __btrfs_unlink_inode+0x1d8/0xb00 [ 77.296332][ T5413] btrfs_unlink+0x108/0x258 [ 77.297125][ T5413] vfs_unlink+0x2e0/0x4f4 [ 77.297845][ T5413] do_unlinkat+0x31c/0x600 [ 77.298563][ T5413] __arm64_sys_unlinkat+0xe0/0xfc [ 77.299381][ T5413] invoke_syscall+0x98/0x2b8 [ 77.300112][ T5413] el0_svc_common+0x138/0x258 [ 77.300841][ T5413] do_el0_svc+0x58/0x14c [ 77.301496][ T5413] el0_svc+0x78/0x1e0 [ 77.302124][ T5413] el0t_64_sync_handler+0xcc/0xe4 [ 77.302841][ T5413] el0t_64_sync+0x1a0/0x1a4 [ 77.453121][ T5434] loop0: detected capacity change from 0 to 32768 [ 77.506107][ T5434] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.29 (5434) [ 77.509557][ T5434] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.510972][ T5434] BTRFS info (device loop0): using free space tree [ 77.512057][ T5434] BTRFS info (device loop0): has skinny extents [ 77.519881][ T5434] BTRFS info (device loop0): enabling ssd optimizations [ 77.533845][ T5434] FAULT_INJECTION: forcing a failure. [ 77.533845][ T5434] name failslab, interval 1, probability 0, space 0, times 0 [ 77.535914][ T5434] CPU: 0 PID: 5434 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 77.537220][ T5434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.538931][ T5434] Call trace: [ 77.539449][ T5434] dump_backtrace+0x0/0x43c [ 77.540221][ T5434] show_stack+0x2c/0x3c [ 77.540954][ T5434] __dump_stack+0x30/0x40 [ 77.541662][ T5434] dump_stack_lvl+0xf8/0x160 [ 77.542450][ T5434] dump_stack+0x1c/0x5c [ 77.543159][ T5434] should_fail+0x3c0/0x51c [ 77.543848][ T5434] __should_failslab+0xbc/0x10c [ 77.544674][ T5434] should_failslab+0x10/0x28 [ 77.545441][ T5434] slab_pre_alloc_hook+0x64/0xec [ 77.546291][ T5434] kmem_cache_alloc_trace+0x98/0x3fc [ 77.547153][ T5434] btrfs_delete_delayed_dir_index+0x220/0x550 [ 77.548156][ T5434] __btrfs_unlink_inode+0x34c/0xb00 [ 77.549092][ T5434] btrfs_unlink+0x108/0x258 [ 77.549875][ T5434] vfs_unlink+0x2e0/0x4f4 [ 77.550628][ T5434] do_unlinkat+0x31c/0x600 [ 77.551382][ T5434] __arm64_sys_unlinkat+0xe0/0xfc [ 77.552212][ T5434] invoke_syscall+0x98/0x2b8 [ 77.553013][ T5434] el0_svc_common+0x138/0x258 [ 77.553766][ T5434] do_el0_svc+0x58/0x14c [ 77.554414][ T5434] el0_svc+0x78/0x1e0 [ 77.555067][ T5434] el0t_64_sync_handler+0xcc/0xe4 [ 77.555895][ T5434] el0t_64_sync+0x1a0/0x1a4 [ 77.558655][ T5434] ------------[ cut here ]------------ [ 77.559656][ T5434] WARNING: CPU: 0 PID: 5434 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 77.561109][ T5434] Modules linked in: [ 77.561758][ T5434] CPU: 0 PID: 5434 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 77.563340][ T5434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.565040][ T5434] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.566392][ T5434] pc : __btrfs_unlink_inode+0x908/0xb00 [ 77.567295][ T5434] lr : __btrfs_unlink_inode+0x908/0xb00 [ 77.568194][ T5434] sp : ffff800021267a60 [ 77.568836][ T5434] x29: ffff800021267b10 x28: ffff0000d6860000 x27: ffff0000e31aa410 [ 77.570081][ T5434] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d16420b0 [ 77.571309][ T5434] x23: 1ffff0000424cf54 x22: dfff800000000000 x21: ffff0000e947ebf0 [ 77.572610][ T5434] x20: ffff0000def95d68 x19: 1fffe0001bdf2bad x18: 0000000000000001 [ 77.573985][ T5434] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 77.575266][ T5434] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 77.576636][ T5434] x11: 0000000000000000 x10: 0000000000000000 x9 : bf3e1bfa91424100 [ 77.577956][ T5434] x8 : bf3e1bfa91424100 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.579367][ T5434] x5 : ffff800021267358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 77.580765][ T5434] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.582021][ T5434] Call trace: [ 77.582563][ T5434] __btrfs_unlink_inode+0x908/0xb00 [ 77.583368][ T5434] btrfs_unlink+0x108/0x258 [ 77.584074][ T5434] vfs_unlink+0x2e0/0x4f4 [ 77.584739][ T5434] do_unlinkat+0x31c/0x600 [ 77.585497][ T5434] __arm64_sys_unlinkat+0xe0/0xfc [ 77.586346][ T5434] invoke_syscall+0x98/0x2b8 [ 77.587148][ T5434] el0_svc_common+0x138/0x258 [ 77.587955][ T5434] do_el0_svc+0x58/0x14c [ 77.588627][ T5434] el0_svc+0x78/0x1e0 [ 77.589262][ T5434] el0t_64_sync_handler+0xcc/0xe4 [ 77.590045][ T5434] el0t_64_sync+0x1a0/0x1a4 [ 77.590799][ T5434] irq event stamp: 79136 [ 77.591500][ T5434] hardirqs last enabled at (79135): [] __up_console_sem+0xb4/0x100 [ 77.593024][ T5434] hardirqs last disabled at (79136): [] el1_dbg+0x24/0x80 [ 77.594315][ T5434] softirqs last enabled at (79116): [] handle_softirqs+0xa4c/0xbf0 [ 77.595754][ T5434] softirqs last disabled at (78999): [] __irq_exit_rcu+0x240/0x440 [ 77.597145][ T5434] ---[ end trace b4216ca0bf747848 ]--- [ 77.598845][ T5434] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 77.600322][ T5434] BTRFS info (device loop0): forced readonly [ 77.632332][ T4355] Bluetooth: hci1: command 0x040f tx timeout [ 77.772034][ T5455] loop0: detected capacity change from 0 to 32768 [ 77.827599][ T5455] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.30 (5455) [ 77.832021][ T5455] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.833651][ T5455] BTRFS info (device loop0): using free space tree [ 77.834776][ T5455] BTRFS info (device loop0): has skinny extents [ 77.841999][ T5455] BTRFS info (device loop0): enabling ssd optimizations [ 77.846881][ T5455] FAULT_INJECTION: forcing a failure. [ 77.846881][ T5455] name failslab, interval 1, probability 0, space 0, times 0 [ 77.848844][ T5455] CPU: 1 PID: 5455 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 77.850199][ T5455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.851794][ T5455] Call trace: [ 77.852247][ T5455] dump_backtrace+0x0/0x43c [ 77.852939][ T5455] show_stack+0x2c/0x3c [ 77.853580][ T5455] __dump_stack+0x30/0x40 [ 77.854249][ T5455] dump_stack_lvl+0xf8/0x160 [ 77.854976][ T5455] dump_stack+0x1c/0x5c [ 77.855668][ T5455] should_fail+0x3c0/0x51c [ 77.856366][ T5455] __should_failslab+0xbc/0x10c [ 77.857099][ T5455] should_failslab+0x10/0x28 [ 77.857762][ T5455] slab_pre_alloc_hook+0x64/0xec [ 77.858492][ T5455] kmem_cache_alloc_trace+0x98/0x3fc [ 77.859283][ T5455] btrfs_delete_delayed_dir_index+0x220/0x550 [ 77.860199][ T5455] __btrfs_unlink_inode+0x34c/0xb00 [ 77.860999][ T5455] btrfs_unlink+0x108/0x258 [ 77.861715][ T5455] vfs_unlink+0x2e0/0x4f4 [ 77.862364][ T5455] do_unlinkat+0x31c/0x600 [ 77.863073][ T5455] __arm64_sys_unlinkat+0xe0/0xfc [ 77.863859][ T5455] invoke_syscall+0x98/0x2b8 [ 77.864621][ T5455] el0_svc_common+0x138/0x258 [ 77.865366][ T5455] do_el0_svc+0x58/0x14c [ 77.866105][ T5455] el0_svc+0x78/0x1e0 [ 77.866713][ T5455] el0t_64_sync_handler+0xcc/0xe4 [ 77.867520][ T5455] el0t_64_sync+0x1a0/0x1a4 [ 77.869615][ T5455] ------------[ cut here ]------------ [ 77.870629][ T5455] WARNING: CPU: 0 PID: 5455 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 77.872160][ T5455] Modules linked in: [ 77.872843][ T5455] CPU: 0 PID: 5455 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 77.874204][ T5455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 77.875923][ T5455] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.877257][ T5455] pc : __btrfs_unlink_inode+0x908/0xb00 [ 77.878214][ T5455] lr : __btrfs_unlink_inode+0x908/0xb00 [ 77.879161][ T5455] sp : ffff800021267a60 [ 77.879870][ T5455] x29: ffff800021267b10 x28: ffff0000dc360000 x27: ffff0000e31aa810 [ 77.881168][ T5455] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c7aeb420 [ 77.882523][ T5455] x23: 1ffff0000424cf54 x22: dfff800000000000 x21: ffff0000e95593a0 [ 77.883954][ T5455] x20: ffff0000dee271b8 x19: 1fffe0001bdc4e37 x18: 0000000000000001 [ 77.885357][ T5455] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 77.886661][ T5455] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 77.888026][ T5455] x11: 0000000000000000 x10: 0000000000000000 x9 : 791e0f5bf3604400 [ 77.889352][ T5455] x8 : 791e0f5bf3604400 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.890643][ T5455] x5 : ffff800021267358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 77.892054][ T5455] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.893452][ T5455] Call trace: [ 77.894028][ T5455] __btrfs_unlink_inode+0x908/0xb00 [ 77.894930][ T5455] btrfs_unlink+0x108/0x258 [ 77.895661][ T5455] vfs_unlink+0x2e0/0x4f4 [ 77.896410][ T5455] do_unlinkat+0x31c/0x600 [ 77.897146][ T5455] __arm64_sys_unlinkat+0xe0/0xfc [ 77.897927][ T5455] invoke_syscall+0x98/0x2b8 [ 77.898673][ T5455] el0_svc_common+0x138/0x258 [ 77.899472][ T5455] do_el0_svc+0x58/0x14c [ 77.900203][ T5455] el0_svc+0x78/0x1e0 [ 77.900847][ T5455] el0t_64_sync_handler+0xcc/0xe4 [ 77.901714][ T5455] el0t_64_sync+0x1a0/0x1a4 [ 77.902471][ T5455] irq event stamp: 79136 [ 77.903187][ T5455] hardirqs last enabled at (79135): [] __up_console_sem+0xb4/0x100 [ 77.904788][ T5455] hardirqs last disabled at (79136): [] el1_dbg+0x24/0x80 [ 77.906143][ T5455] softirqs last enabled at (79116): [] handle_softirqs+0xa4c/0xbf0 [ 77.907709][ T5455] softirqs last disabled at (79029): [] __irq_exit_rcu+0x240/0x440 [ 77.909273][ T5455] ---[ end trace b4216ca0bf747849 ]--- [ 77.913181][ T5455] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 77.914612][ T5455] BTRFS info (device loop0): forced readonly [ 78.049260][ T5477] loop0: detected capacity change from 0 to 32768 [ 78.093747][ T5477] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.31 (5477) [ 78.098040][ T5477] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.099504][ T5477] BTRFS info (device loop0): using free space tree [ 78.100519][ T5477] BTRFS info (device loop0): has skinny extents [ 78.108455][ T5477] BTRFS info (device loop0): enabling ssd optimizations [ 78.112487][ T5477] FAULT_INJECTION: forcing a failure. [ 78.112487][ T5477] name failslab, interval 1, probability 0, space 0, times 0 [ 78.114621][ T5477] CPU: 1 PID: 5477 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 78.115948][ T5477] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.117569][ T5477] Call trace: [ 78.118102][ T5477] dump_backtrace+0x0/0x43c [ 78.118858][ T5477] show_stack+0x2c/0x3c [ 78.119537][ T5477] __dump_stack+0x30/0x40 [ 78.120240][ T5477] dump_stack_lvl+0xf8/0x160 [ 78.120996][ T5477] dump_stack+0x1c/0x5c [ 78.121682][ T5477] should_fail+0x3c0/0x51c [ 78.122370][ T5477] __should_failslab+0xbc/0x10c [ 78.123107][ T5477] should_failslab+0x10/0x28 [ 78.123765][ T5477] slab_pre_alloc_hook+0x64/0xec [ 78.124533][ T5477] kmem_cache_alloc_trace+0x98/0x3fc [ 78.125322][ T5477] btrfs_delete_delayed_dir_index+0x220/0x550 [ 78.126265][ T5477] __btrfs_unlink_inode+0x34c/0xb00 [ 78.127096][ T5477] btrfs_unlink+0x108/0x258 [ 78.127777][ T5477] vfs_unlink+0x2e0/0x4f4 [ 78.128422][ T5477] do_unlinkat+0x31c/0x600 [ 78.129158][ T5477] __arm64_sys_unlinkat+0xe0/0xfc [ 78.129939][ T5477] invoke_syscall+0x98/0x2b8 [ 78.130684][ T5477] el0_svc_common+0x138/0x258 [ 78.131384][ T5477] do_el0_svc+0x58/0x14c [ 78.132049][ T5477] el0_svc+0x78/0x1e0 [ 78.132619][ T5477] el0t_64_sync_handler+0xcc/0xe4 [ 78.133441][ T5477] el0t_64_sync+0x1a0/0x1a4 [ 78.135130][ T5477] ------------[ cut here ]------------ [ 78.136076][ T5477] WARNING: CPU: 1 PID: 5477 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 78.137486][ T5477] Modules linked in: [ 78.138113][ T5477] CPU: 1 PID: 5477 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 78.139509][ T5477] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.141091][ T5477] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.142230][ T5477] pc : __btrfs_unlink_inode+0x908/0xb00 [ 78.143132][ T5477] lr : __btrfs_unlink_inode+0x908/0xb00 [ 78.144013][ T5477] sp : ffff8000211b7a60 [ 78.144673][ T5477] x29: ffff8000211b7b10 x28: ffff0000ce3ec000 x27: ffff0000e9545410 [ 78.145891][ T5477] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d68b7b00 [ 78.147159][ T5477] x23: 1ffff00004236f54 x22: dfff800000000000 x21: ffff0000e95ee220 [ 78.148450][ T5477] x20: ffff0000dee27aa8 x19: 1fffe0001bdc4f55 x18: 0000000000000001 [ 78.149689][ T5477] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 78.150921][ T5477] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 78.152141][ T5477] x11: 0000000000000000 x10: 0000000000000000 x9 : 67d71a39d52dce00 [ 78.153343][ T5477] x8 : 67d71a39d52dce00 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.154585][ T5477] x5 : ffff8000211b7358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 78.155760][ T5477] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.156959][ T5477] Call trace: [ 78.157497][ T5477] __btrfs_unlink_inode+0x908/0xb00 [ 78.158310][ T5477] btrfs_unlink+0x108/0x258 [ 78.159006][ T5477] vfs_unlink+0x2e0/0x4f4 [ 78.159666][ T5477] do_unlinkat+0x31c/0x600 [ 78.160368][ T5477] __arm64_sys_unlinkat+0xe0/0xfc [ 78.161200][ T5477] invoke_syscall+0x98/0x2b8 [ 78.161968][ T5477] el0_svc_common+0x138/0x258 [ 78.162769][ T5477] do_el0_svc+0x58/0x14c [ 78.163452][ T5477] el0_svc+0x78/0x1e0 [ 78.164068][ T5477] el0t_64_sync_handler+0xcc/0xe4 [ 78.164848][ T5477] el0t_64_sync+0x1a0/0x1a4 [ 78.165540][ T5477] irq event stamp: 78982 [ 78.166170][ T5477] hardirqs last enabled at (78981): [] __up_console_sem+0xb4/0x100 [ 78.167598][ T5477] hardirqs last disabled at (78982): [] el1_dbg+0x24/0x80 [ 78.168934][ T5477] softirqs last enabled at (78962): [] handle_softirqs+0xa4c/0xbf0 [ 78.170507][ T5477] softirqs last disabled at (78915): [] __irq_exit_rcu+0x240/0x440 [ 78.172035][ T5477] ---[ end trace b4216ca0bf74784a ]--- [ 78.173130][ T5477] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 78.174652][ T5477] BTRFS info (device loop0): forced readonly [ 78.312386][ T5499] loop0: detected capacity change from 0 to 32768 [ 78.403029][ T5499] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.32 (5499) [ 78.406316][ T5499] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.407684][ T5499] BTRFS info (device loop0): using free space tree [ 78.408767][ T5499] BTRFS info (device loop0): has skinny extents [ 78.417517][ T5499] BTRFS info (device loop0): enabling ssd optimizations [ 78.421514][ T5499] FAULT_INJECTION: forcing a failure. [ 78.421514][ T5499] name failslab, interval 1, probability 0, space 0, times 0 [ 78.424344][ T5499] CPU: 1 PID: 5499 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 78.425554][ T5499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.427137][ T5499] Call trace: [ 78.427630][ T5499] dump_backtrace+0x0/0x43c [ 78.428325][ T5499] show_stack+0x2c/0x3c [ 78.428943][ T5499] __dump_stack+0x30/0x40 [ 78.429553][ T5499] dump_stack_lvl+0xf8/0x160 [ 78.430229][ T5499] dump_stack+0x1c/0x5c [ 78.430791][ T5499] should_fail+0x3c0/0x51c [ 78.431479][ T5499] __should_failslab+0xbc/0x10c [ 78.432274][ T5499] should_failslab+0x10/0x28 [ 78.433032][ T5499] slab_pre_alloc_hook+0x64/0xec [ 78.433828][ T5499] kmem_cache_alloc_trace+0x98/0x3fc [ 78.434590][ T5499] btrfs_delete_delayed_dir_index+0x220/0x550 [ 78.435487][ T5499] __btrfs_unlink_inode+0x34c/0xb00 [ 78.436257][ T5499] btrfs_unlink+0x108/0x258 [ 78.436919][ T5499] vfs_unlink+0x2e0/0x4f4 [ 78.437551][ T5499] do_unlinkat+0x31c/0x600 [ 78.438180][ T5499] __arm64_sys_unlinkat+0xe0/0xfc [ 78.438993][ T5499] invoke_syscall+0x98/0x2b8 [ 78.439693][ T5499] el0_svc_common+0x138/0x258 [ 78.440444][ T5499] do_el0_svc+0x58/0x14c [ 78.441160][ T5499] el0_svc+0x78/0x1e0 [ 78.441776][ T5499] el0t_64_sync_handler+0xcc/0xe4 [ 78.442557][ T5499] el0t_64_sync+0x1a0/0x1a4 [ 78.444144][ T5499] ------------[ cut here ]------------ [ 78.445085][ T5499] WARNING: CPU: 1 PID: 5499 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 78.446655][ T5499] Modules linked in: [ 78.447260][ T5499] CPU: 1 PID: 5499 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 78.448456][ T5499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.449967][ T5499] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.451107][ T5499] pc : __btrfs_unlink_inode+0x908/0xb00 [ 78.451932][ T5499] lr : __btrfs_unlink_inode+0x908/0xb00 [ 78.452783][ T5499] sp : ffff8000219e7a60 [ 78.453479][ T5499] x29: ffff8000219e7b10 x28: ffff0000ebca0000 x27: ffff0000e9545810 [ 78.454769][ T5499] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d2cbae70 [ 78.456000][ T5499] x23: 1ffff0000433cf54 x22: dfff800000000000 x21: ffff0000e30fce80 [ 78.457244][ T5499] x20: ffff0000dee27c08 x19: 1fffe0001bdc4f81 x18: 0000000000000001 [ 78.458448][ T5499] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 78.459669][ T5499] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 78.460823][ T5499] x11: 0000000000000000 x10: 0000000000000000 x9 : dd4c5b761ef14b00 [ 78.462023][ T5499] x8 : dd4c5b761ef14b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.463303][ T5499] x5 : ffff8000219e7358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 78.464584][ T5499] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.465847][ T5499] Call trace: [ 78.466373][ T5499] __btrfs_unlink_inode+0x908/0xb00 [ 78.467220][ T5499] btrfs_unlink+0x108/0x258 [ 78.467931][ T5499] vfs_unlink+0x2e0/0x4f4 [ 78.468623][ T5499] do_unlinkat+0x31c/0x600 [ 78.469391][ T5499] __arm64_sys_unlinkat+0xe0/0xfc [ 78.470260][ T5499] invoke_syscall+0x98/0x2b8 [ 78.471024][ T5499] el0_svc_common+0x138/0x258 [ 78.471781][ T5499] do_el0_svc+0x58/0x14c [ 78.472444][ T5499] el0_svc+0x78/0x1e0 [ 78.473048][ T5499] el0t_64_sync_handler+0xcc/0xe4 [ 78.473862][ T5499] el0t_64_sync+0x1a0/0x1a4 [ 78.474582][ T5499] irq event stamp: 79476 [ 78.475232][ T5499] hardirqs last enabled at (79475): [] __up_console_sem+0xb4/0x100 [ 78.476881][ T5499] hardirqs last disabled at (79476): [] el1_dbg+0x24/0x80 [ 78.478293][ T5499] softirqs last enabled at (79456): [] handle_softirqs+0xa4c/0xbf0 [ 78.479914][ T5499] softirqs last disabled at (79407): [] __irq_exit_rcu+0x240/0x440 [ 78.481503][ T5499] ---[ end trace b4216ca0bf74784b ]--- [ 78.483282][ T5499] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 78.484838][ T5499] BTRFS info (device loop0): forced readonly [ 78.667373][ T5520] loop0: detected capacity change from 0 to 32768 [ 78.717889][ T5520] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.33 (5520) [ 78.723240][ T5520] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.724799][ T5520] BTRFS info (device loop0): using free space tree [ 78.725896][ T5520] BTRFS info (device loop0): has skinny extents [ 78.751143][ T5520] BTRFS info (device loop0): enabling ssd optimizations [ 78.755191][ T5520] FAULT_INJECTION: forcing a failure. [ 78.755191][ T5520] name failslab, interval 1, probability 0, space 0, times 0 [ 78.757126][ T5520] CPU: 1 PID: 5520 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 78.758551][ T5520] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.760175][ T5520] Call trace: [ 78.760665][ T5520] dump_backtrace+0x0/0x43c [ 78.761403][ T5520] show_stack+0x2c/0x3c [ 78.762097][ T5520] __dump_stack+0x30/0x40 [ 78.762807][ T5520] dump_stack_lvl+0xf8/0x160 [ 78.763532][ T5520] dump_stack+0x1c/0x5c [ 78.764228][ T5520] should_fail+0x3c0/0x51c [ 78.764934][ T5520] __should_failslab+0xbc/0x10c [ 78.765730][ T5520] should_failslab+0x10/0x28 [ 78.766515][ T5520] slab_pre_alloc_hook+0x64/0xec [ 78.767336][ T5520] kmem_cache_alloc_trace+0x98/0x3fc [ 78.768233][ T5520] btrfs_delete_delayed_dir_index+0x220/0x550 [ 78.769222][ T5520] __btrfs_unlink_inode+0x34c/0xb00 [ 78.770068][ T5520] btrfs_unlink+0x108/0x258 [ 78.770786][ T5520] vfs_unlink+0x2e0/0x4f4 [ 78.771494][ T5520] do_unlinkat+0x31c/0x600 [ 78.772241][ T5520] __arm64_sys_unlinkat+0xe0/0xfc [ 78.773010][ T5520] invoke_syscall+0x98/0x2b8 [ 78.773723][ T5520] el0_svc_common+0x138/0x258 [ 78.774494][ T5520] do_el0_svc+0x58/0x14c [ 78.775171][ T5520] el0_svc+0x78/0x1e0 [ 78.775770][ T5520] el0t_64_sync_handler+0xcc/0xe4 [ 78.776613][ T5520] el0t_64_sync+0x1a0/0x1a4 [ 78.778987][ T5520] ------------[ cut here ]------------ [ 78.779980][ T5520] WARNING: CPU: 1 PID: 5520 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 78.781457][ T5520] Modules linked in: [ 78.782066][ T5520] CPU: 1 PID: 5520 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 78.783423][ T5520] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 78.784929][ T5520] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.786160][ T5520] pc : __btrfs_unlink_inode+0x908/0xb00 [ 78.786993][ T5520] lr : __btrfs_unlink_inode+0x908/0xb00 [ 78.787816][ T5520] sp : ffff8000219f7a60 [ 78.788436][ T5520] x29: ffff8000219f7b10 x28: ffff0000d952c000 x27: ffff0000e9545c10 [ 78.789619][ T5520] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d0caa210 [ 78.790795][ T5520] x23: 1ffff0000433ef54 x22: dfff800000000000 x21: ffff0000e30fb110 [ 78.792036][ T5520] x20: ffff0000dee27d68 x19: 1fffe0001bdc4fad x18: 0000000000000001 [ 78.793328][ T5520] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 78.794690][ T5520] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 78.795974][ T5520] x11: 0000000000000000 x10: 0000000000000000 x9 : e384684a04f86d00 [ 78.797232][ T5520] x8 : e384684a04f86d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.798452][ T5520] x5 : ffff8000219f7358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 78.799667][ T5520] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.801097][ T5520] Call trace: [ 78.801607][ T5520] __btrfs_unlink_inode+0x908/0xb00 [ 78.802438][ T5520] btrfs_unlink+0x108/0x258 [ 78.803149][ T5520] vfs_unlink+0x2e0/0x4f4 [ 78.803817][ T5520] do_unlinkat+0x31c/0x600 [ 78.804478][ T5520] __arm64_sys_unlinkat+0xe0/0xfc [ 78.805267][ T5520] invoke_syscall+0x98/0x2b8 [ 78.805959][ T5520] el0_svc_common+0x138/0x258 [ 78.806703][ T5520] do_el0_svc+0x58/0x14c [ 78.807367][ T5520] el0_svc+0x78/0x1e0 [ 78.808026][ T5520] el0t_64_sync_handler+0xcc/0xe4 [ 78.808842][ T5520] el0t_64_sync+0x1a0/0x1a4 [ 78.809577][ T5520] irq event stamp: 79310 [ 78.810217][ T5520] hardirqs last enabled at (79309): [] __up_console_sem+0xb4/0x100 [ 78.811768][ T5520] hardirqs last disabled at (79310): [] el1_dbg+0x24/0x80 [ 78.813138][ T5520] softirqs last enabled at (79290): [] handle_softirqs+0xa4c/0xbf0 [ 78.814714][ T5520] softirqs last disabled at (79243): [] __irq_exit_rcu+0x240/0x440 [ 78.816185][ T5520] ---[ end trace b4216ca0bf74784c ]--- [ 78.819541][ T5520] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 78.821060][ T5520] BTRFS info (device loop0): forced readonly [ 78.999407][ T5542] loop0: detected capacity change from 0 to 32768 [ 79.056746][ T5542] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.34 (5542) [ 79.060256][ T5542] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.061559][ T5542] BTRFS info (device loop0): using free space tree [ 79.062815][ T5542] BTRFS info (device loop0): has skinny extents [ 79.071118][ T5542] BTRFS info (device loop0): enabling ssd optimizations [ 79.076517][ T5542] FAULT_INJECTION: forcing a failure. [ 79.076517][ T5542] name failslab, interval 1, probability 0, space 0, times 0 [ 79.078581][ T5542] CPU: 1 PID: 5542 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 79.079940][ T5542] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.081522][ T5542] Call trace: [ 79.082048][ T5542] dump_backtrace+0x0/0x43c [ 79.082778][ T5542] show_stack+0x2c/0x3c [ 79.083449][ T5542] __dump_stack+0x30/0x40 [ 79.084157][ T5542] dump_stack_lvl+0xf8/0x160 [ 79.084841][ T5542] dump_stack+0x1c/0x5c [ 79.085428][ T5542] should_fail+0x3c0/0x51c [ 79.086136][ T5542] __should_failslab+0xbc/0x10c [ 79.086952][ T5542] should_failslab+0x10/0x28 [ 79.087694][ T5542] slab_pre_alloc_hook+0x64/0xec [ 79.088505][ T5542] kmem_cache_alloc_trace+0x98/0x3fc [ 79.089422][ T5542] btrfs_delete_delayed_dir_index+0x220/0x550 [ 79.090460][ T5542] __btrfs_unlink_inode+0x34c/0xb00 [ 79.091345][ T5542] btrfs_unlink+0x108/0x258 [ 79.092114][ T5542] vfs_unlink+0x2e0/0x4f4 [ 79.092862][ T5542] do_unlinkat+0x31c/0x600 [ 79.093615][ T5542] __arm64_sys_unlinkat+0xe0/0xfc [ 79.094439][ T5542] invoke_syscall+0x98/0x2b8 [ 79.095204][ T5542] el0_svc_common+0x138/0x258 [ 79.096003][ T5542] do_el0_svc+0x58/0x14c [ 79.096647][ T5542] el0_svc+0x78/0x1e0 [ 79.097261][ T5542] el0t_64_sync_handler+0xcc/0xe4 [ 79.098017][ T5542] el0t_64_sync+0x1a0/0x1a4 [ 79.100079][ T5542] ------------[ cut here ]------------ [ 79.101034][ T5542] WARNING: CPU: 1 PID: 5542 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 79.102432][ T5542] Modules linked in: [ 79.103119][ T5542] CPU: 1 PID: 5542 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 79.104359][ T5542] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.105887][ T5542] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.107182][ T5542] pc : __btrfs_unlink_inode+0x908/0xb00 [ 79.108093][ T5542] lr : __btrfs_unlink_inode+0x908/0xb00 [ 79.108989][ T5542] sp : ffff800021b07a60 [ 79.109695][ T5542] x29: ffff800021b07b10 x28: ffff0000d0c36000 x27: ffff0000e9546010 [ 79.110999][ T5542] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cbd35370 [ 79.112176][ T5542] x23: 1ffff00004360f54 x22: dfff800000000000 x21: ffff0000e30f8000 [ 79.113418][ T5542] x20: ffff0000dee27ec8 x19: 1fffe0001bdc4fd9 x18: 0000000000000001 [ 79.114776][ T5542] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 79.115956][ T5542] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.117300][ T5542] x11: 0000000000000000 x10: 0000000000000000 x9 : 54fcdec6e92df700 [ 79.118730][ T5542] x8 : 54fcdec6e92df700 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.120103][ T5542] x5 : ffff800021b07358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 79.121387][ T5542] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.122706][ T5542] Call trace: [ 79.123177][ T5542] __btrfs_unlink_inode+0x908/0xb00 [ 79.124032][ T5542] btrfs_unlink+0x108/0x258 [ 79.124786][ T5542] vfs_unlink+0x2e0/0x4f4 [ 79.125473][ T5542] do_unlinkat+0x31c/0x600 [ 79.126164][ T5542] __arm64_sys_unlinkat+0xe0/0xfc [ 79.126919][ T5542] invoke_syscall+0x98/0x2b8 [ 79.127584][ T5542] el0_svc_common+0x138/0x258 [ 79.128288][ T5542] do_el0_svc+0x58/0x14c [ 79.128952][ T5542] el0_svc+0x78/0x1e0 [ 79.129574][ T5542] el0t_64_sync_handler+0xcc/0xe4 [ 79.130396][ T5542] el0t_64_sync+0x1a0/0x1a4 [ 79.131091][ T5542] irq event stamp: 79756 [ 79.131731][ T5542] hardirqs last enabled at (79755): [] __up_console_sem+0xb4/0x100 [ 79.133161][ T5542] hardirqs last disabled at (79756): [] el1_dbg+0x24/0x80 [ 79.134511][ T5542] softirqs last enabled at (79736): [] handle_softirqs+0xa4c/0xbf0 [ 79.135863][ T5542] softirqs last disabled at (79721): [] __irq_exit_rcu+0x240/0x440 [ 79.137314][ T5542] ---[ end trace b4216ca0bf74784d ]--- [ 79.138614][ T5542] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 79.140477][ T5542] BTRFS info (device loop0): forced readonly [ 79.304775][ T5564] loop0: detected capacity change from 0 to 32768 [ 79.344156][ T5564] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.35 (5564) [ 79.347845][ T5564] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.349309][ T5564] BTRFS info (device loop0): using free space tree [ 79.350328][ T5564] BTRFS info (device loop0): has skinny extents [ 79.358082][ T5564] BTRFS info (device loop0): enabling ssd optimizations [ 79.370530][ T5564] FAULT_INJECTION: forcing a failure. [ 79.370530][ T5564] name failslab, interval 1, probability 0, space 0, times 0 [ 79.373292][ T5564] CPU: 1 PID: 5564 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 79.374688][ T5564] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.376287][ T5564] Call trace: [ 79.376826][ T5564] dump_backtrace+0x0/0x43c [ 79.377509][ T5564] show_stack+0x2c/0x3c [ 79.378188][ T5564] __dump_stack+0x30/0x40 [ 79.378914][ T5564] dump_stack_lvl+0xf8/0x160 [ 79.379663][ T5564] dump_stack+0x1c/0x5c [ 79.380311][ T5564] should_fail+0x3c0/0x51c [ 79.380995][ T5564] __should_failslab+0xbc/0x10c [ 79.381865][ T5564] should_failslab+0x10/0x28 [ 79.382553][ T5564] slab_pre_alloc_hook+0x64/0xec [ 79.383349][ T5564] kmem_cache_alloc_trace+0x98/0x3fc [ 79.384174][ T5564] btrfs_delete_delayed_dir_index+0x220/0x550 [ 79.385177][ T5564] __btrfs_unlink_inode+0x34c/0xb00 [ 79.386031][ T5564] btrfs_unlink+0x108/0x258 [ 79.386747][ T5564] vfs_unlink+0x2e0/0x4f4 [ 79.387460][ T5564] do_unlinkat+0x31c/0x600 [ 79.388208][ T5564] __arm64_sys_unlinkat+0xe0/0xfc [ 79.389034][ T5564] invoke_syscall+0x98/0x2b8 [ 79.389844][ T5564] el0_svc_common+0x138/0x258 [ 79.390624][ T5564] do_el0_svc+0x58/0x14c [ 79.391349][ T5564] el0_svc+0x78/0x1e0 [ 79.391986][ T5564] el0t_64_sync_handler+0xcc/0xe4 [ 79.392762][ T5564] el0t_64_sync+0x1a0/0x1a4 [ 79.395179][ T5564] ------------[ cut here ]------------ [ 79.396112][ T5564] WARNING: CPU: 1 PID: 5564 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 79.397506][ T5564] Modules linked in: [ 79.398098][ T5564] CPU: 1 PID: 5564 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 79.399421][ T5564] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.400838][ T5564] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.402093][ T5564] pc : __btrfs_unlink_inode+0x908/0xb00 [ 79.402919][ T5564] lr : __btrfs_unlink_inode+0x908/0xb00 [ 79.403834][ T5564] sp : ffff800021d17a60 [ 79.404485][ T5564] x29: ffff800021d17b10 x28: ffff0000c96fa000 x27: ffff0000e9546410 [ 79.405776][ T5564] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d2cf9420 [ 79.407031][ T5564] x23: 1ffff000043a2f54 x22: dfff800000000000 x21: ffff0000e33b93a0 [ 79.408328][ T5564] x20: ffff0000dee27318 x19: 1fffe0001bdc4e63 x18: 0000000000000001 [ 79.409527][ T5564] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 79.410841][ T5564] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.412145][ T5564] x11: 0000000000000000 x10: 0000000000000000 x9 : e879e081fe655300 [ 79.413406][ T5564] x8 : e879e081fe655300 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.414774][ T5564] x5 : ffff800021d17358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 79.416183][ T5564] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.417535][ T5564] Call trace: [ 79.418079][ T5564] __btrfs_unlink_inode+0x908/0xb00 [ 79.418906][ T5564] btrfs_unlink+0x108/0x258 [ 79.419590][ T5564] vfs_unlink+0x2e0/0x4f4 [ 79.420326][ T5564] do_unlinkat+0x31c/0x600 [ 79.421041][ T5564] __arm64_sys_unlinkat+0xe0/0xfc [ 79.421833][ T5564] invoke_syscall+0x98/0x2b8 [ 79.422606][ T5564] el0_svc_common+0x138/0x258 [ 79.423420][ T5564] do_el0_svc+0x58/0x14c [ 79.424119][ T5564] el0_svc+0x78/0x1e0 [ 79.424768][ T5564] el0t_64_sync_handler+0xcc/0xe4 [ 79.425622][ T5564] el0t_64_sync+0x1a0/0x1a4 [ 79.426371][ T5564] irq event stamp: 79574 [ 79.427035][ T5564] hardirqs last enabled at (79573): [] __up_console_sem+0xb4/0x100 [ 79.428586][ T5564] hardirqs last disabled at (79574): [] el1_dbg+0x24/0x80 [ 79.429945][ T5564] softirqs last enabled at (79554): [] handle_softirqs+0xa4c/0xbf0 [ 79.431481][ T5564] softirqs last disabled at (79497): [] __irq_exit_rcu+0x240/0x440 [ 79.433007][ T5564] ---[ end trace b4216ca0bf74784e ]--- [ 79.434517][ T5564] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 79.436753][ T5564] BTRFS info (device loop0): forced readonly [ 79.590263][ T5586] loop0: detected capacity change from 0 to 32768 [ 79.627404][ T5586] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.36 (5586) [ 79.631868][ T5586] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.634119][ T5586] BTRFS info (device loop0): using free space tree [ 79.635286][ T5586] BTRFS info (device loop0): has skinny extents [ 79.644403][ T5586] BTRFS info (device loop0): enabling ssd optimizations [ 79.652716][ T5586] FAULT_INJECTION: forcing a failure. [ 79.652716][ T5586] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 79.654939][ T5586] CPU: 1 PID: 5586 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 79.656224][ T5586] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.657741][ T5586] Call trace: [ 79.658229][ T5586] dump_backtrace+0x0/0x43c [ 79.658918][ T5586] show_stack+0x2c/0x3c [ 79.659539][ T5586] __dump_stack+0x30/0x40 [ 79.660193][ T5586] dump_stack_lvl+0xf8/0x160 [ 79.660891][ T5586] dump_stack+0x1c/0x5c [ 79.661574][ T5586] should_fail+0x3c0/0x51c [ 79.662262][ T5586] should_fail_alloc_page+0x74/0xa8 [ 79.663058][ T5586] prepare_alloc_pages+0x160/0x460 [ 79.663861][ T5586] __alloc_pages+0x108/0x470 [ 79.664608][ T5586] alloc_pages+0x34c/0x5c0 [ 79.665284][ T5586] new_slab+0xe0/0x55c [ 79.665920][ T5586] ___slab_alloc+0x6c0/0xda8 [ 79.666617][ T5586] __slab_alloc+0x68/0xc0 [ 79.667281][ T5586] kmem_cache_alloc+0x2ac/0x3e4 [ 79.668086][ T5586] start_transaction+0x4d0/0x13f0 [ 79.668902][ T5586] btrfs_start_transaction_fallback_global_rsv+0x34/0x44 [ 79.670091][ T5586] btrfs_unlink+0x74/0x258 [ 79.670828][ T5586] vfs_unlink+0x2e0/0x4f4 [ 79.671479][ T5586] do_unlinkat+0x31c/0x600 [ 79.672144][ T5586] __arm64_sys_unlinkat+0xe0/0xfc [ 79.672939][ T5586] invoke_syscall+0x98/0x2b8 [ 79.673691][ T5586] el0_svc_common+0x138/0x258 [ 79.674431][ T5586] do_el0_svc+0x58/0x14c [ 79.675100][ T5586] el0_svc+0x78/0x1e0 [ 79.675736][ T5586] el0t_64_sync_handler+0xcc/0xe4 [ 79.676465][ T5586] el0t_64_sync+0x1a0/0x1a4 [ 79.702492][ T5213] Bluetooth: hci1: command 0x0419 tx timeout [ 79.729722][ T4919] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4919) [ 79.816936][ T5607] loop0: detected capacity change from 0 to 32768 [ 79.874618][ T5607] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.876095][ T5607] BTRFS info (device loop0): using free space tree [ 79.877155][ T5607] BTRFS info (device loop0): has skinny extents [ 79.898420][ T5607] BTRFS info (device loop0): enabling ssd optimizations [ 79.903995][ T5607] FAULT_INJECTION: forcing a failure. [ 79.903995][ T5607] name failslab, interval 1, probability 0, space 0, times 0 [ 79.906105][ T5607] CPU: 1 PID: 5607 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 79.907448][ T5607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.909066][ T5607] Call trace: [ 79.909560][ T5607] dump_backtrace+0x0/0x43c [ 79.910347][ T5607] show_stack+0x2c/0x3c [ 79.910997][ T5607] __dump_stack+0x30/0x40 [ 79.911699][ T5607] dump_stack_lvl+0xf8/0x160 [ 79.912441][ T5607] dump_stack+0x1c/0x5c [ 79.913095][ T5607] should_fail+0x3c0/0x51c [ 79.913848][ T5607] __should_failslab+0xbc/0x10c [ 79.914593][ T5607] should_failslab+0x10/0x28 [ 79.915380][ T5607] slab_pre_alloc_hook+0x64/0xec [ 79.916227][ T5607] kmem_cache_alloc_trace+0x98/0x3fc [ 79.917080][ T5607] btrfs_delete_delayed_dir_index+0x220/0x550 [ 79.918132][ T5607] __btrfs_unlink_inode+0x34c/0xb00 [ 79.919010][ T5607] btrfs_unlink+0x108/0x258 [ 79.919774][ T5607] vfs_unlink+0x2e0/0x4f4 [ 79.920512][ T5607] do_unlinkat+0x31c/0x600 [ 79.921232][ T5607] __arm64_sys_unlinkat+0xe0/0xfc [ 79.922068][ T5607] invoke_syscall+0x98/0x2b8 [ 79.922847][ T5607] el0_svc_common+0x138/0x258 [ 79.923619][ T5607] do_el0_svc+0x58/0x14c [ 79.924316][ T5607] el0_svc+0x78/0x1e0 [ 79.924991][ T5607] el0t_64_sync_handler+0xcc/0xe4 [ 79.925803][ T5607] el0t_64_sync+0x1a0/0x1a4 [ 79.928609][ T5607] ------------[ cut here ]------------ [ 79.929506][ T5607] WARNING: CPU: 1 PID: 5607 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 79.930964][ T5607] Modules linked in: [ 79.931554][ T5607] CPU: 1 PID: 5607 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 79.932875][ T5607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 79.934632][ T5607] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.935884][ T5607] pc : __btrfs_unlink_inode+0x908/0xb00 [ 79.936775][ T5607] lr : __btrfs_unlink_inode+0x908/0xb00 [ 79.937634][ T5607] sp : ffff800021f57a60 [ 79.938296][ T5607] x29: ffff800021f57b10 x28: ffff0000d975c000 x27: ffff0000e9546c10 [ 79.939598][ T5607] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ca4f28f0 [ 79.940861][ T5607] x23: 1ffff000043eaf54 x22: dfff800000000000 x21: ffff0000e33bc4b0 [ 79.942113][ T5607] x20: ffff0000dcf5d528 x19: 1fffe0001b9ebaa5 x18: 0000000000000001 [ 79.943340][ T5607] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 79.944532][ T5607] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.945925][ T5607] x11: 0000000000000000 x10: 0000000000000000 x9 : cac2ae6e426d7200 [ 79.947310][ T5607] x8 : cac2ae6e426d7200 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.948591][ T5607] x5 : ffff800021f57358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 79.949873][ T5607] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.951120][ T5607] Call trace: [ 79.951643][ T5607] __btrfs_unlink_inode+0x908/0xb00 [ 79.952474][ T5607] btrfs_unlink+0x108/0x258 [ 79.953146][ T5607] vfs_unlink+0x2e0/0x4f4 [ 79.953779][ T5607] do_unlinkat+0x31c/0x600 [ 79.954424][ T5607] __arm64_sys_unlinkat+0xe0/0xfc [ 79.955141][ T5607] invoke_syscall+0x98/0x2b8 [ 79.955877][ T5607] el0_svc_common+0x138/0x258 [ 79.956593][ T5607] do_el0_svc+0x58/0x14c [ 79.957274][ T5607] el0_svc+0x78/0x1e0 [ 79.957942][ T5607] el0t_64_sync_handler+0xcc/0xe4 [ 79.958725][ T5607] el0t_64_sync+0x1a0/0x1a4 [ 79.959408][ T5607] irq event stamp: 79316 [ 79.960161][ T5607] hardirqs last enabled at (79315): [] __up_console_sem+0xb4/0x100 [ 79.961666][ T5607] hardirqs last disabled at (79316): [] el1_dbg+0x24/0x80 [ 79.963075][ T5607] softirqs last enabled at (79296): [] handle_softirqs+0xa4c/0xbf0 [ 79.964636][ T5607] softirqs last disabled at (79255): [] __irq_exit_rcu+0x240/0x440 [ 79.966096][ T5607] ---[ end trace b4216ca0bf74784f ]--- [ 79.970389][ T5607] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 79.971940][ T5607] BTRFS info (device loop0): forced readonly [ 80.006847][ T4919] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by udevd (4919) [ 80.113523][ T5630] loop0: detected capacity change from 0 to 32768 [ 80.123483][ T5630] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.124916][ T5630] BTRFS info (device loop0): using free space tree [ 80.125999][ T5630] BTRFS info (device loop0): has skinny extents [ 80.133574][ T5630] BTRFS info (device loop0): enabling ssd optimizations [ 80.137399][ T5630] FAULT_INJECTION: forcing a failure. [ 80.137399][ T5630] name failslab, interval 1, probability 0, space 0, times 0 [ 80.139384][ T5630] CPU: 1 PID: 5630 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 80.140702][ T5630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.142288][ T5630] Call trace: [ 80.142817][ T5630] dump_backtrace+0x0/0x43c [ 80.143570][ T5630] show_stack+0x2c/0x3c [ 80.144264][ T5630] __dump_stack+0x30/0x40 [ 80.144970][ T5630] dump_stack_lvl+0xf8/0x160 [ 80.145662][ T5630] dump_stack+0x1c/0x5c [ 80.146289][ T5630] should_fail+0x3c0/0x51c [ 80.146885][ T5630] __should_failslab+0xbc/0x10c [ 80.147584][ T5630] should_failslab+0x10/0x28 [ 80.148274][ T5630] slab_pre_alloc_hook+0x64/0xec [ 80.149086][ T5630] kmem_cache_alloc_trace+0x98/0x3fc [ 80.149921][ T5630] btrfs_delete_delayed_dir_index+0x220/0x550 [ 80.150968][ T5630] __btrfs_unlink_inode+0x34c/0xb00 [ 80.151858][ T5630] btrfs_unlink+0x108/0x258 [ 80.152588][ T5630] vfs_unlink+0x2e0/0x4f4 [ 80.153217][ T5630] do_unlinkat+0x31c/0x600 [ 80.153901][ T5630] __arm64_sys_unlinkat+0xe0/0xfc [ 80.154690][ T5630] invoke_syscall+0x98/0x2b8 [ 80.155431][ T5630] el0_svc_common+0x138/0x258 [ 80.156195][ T5630] do_el0_svc+0x58/0x14c [ 80.156848][ T5630] el0_svc+0x78/0x1e0 [ 80.157482][ T5630] el0t_64_sync_handler+0xcc/0xe4 [ 80.158290][ T5630] el0t_64_sync+0x1a0/0x1a4 [ 80.160694][ T5630] ------------[ cut here ]------------ [ 80.161656][ T5630] WARNING: CPU: 1 PID: 5630 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 80.163074][ T5630] Modules linked in: [ 80.163709][ T5630] CPU: 1 PID: 5630 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 80.165138][ T5630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.166678][ T5630] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.167917][ T5630] pc : __btrfs_unlink_inode+0x908/0xb00 [ 80.168787][ T5630] lr : __btrfs_unlink_inode+0x908/0xb00 [ 80.169604][ T5630] sp : ffff800021f57a60 [ 80.170238][ T5630] x29: ffff800021f57b10 x28: ffff0000c117e000 x27: ffff0000e9547010 [ 80.171527][ T5630] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c90909a0 [ 80.172872][ T5630] x23: 1ffff000043eaf54 x22: dfff800000000000 x21: ffff0000e33bebf0 [ 80.174229][ T5630] x20: ffff0000dcf5d688 x19: 1fffe0001b9ebad1 x18: 0000000000000001 [ 80.175503][ T5630] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 80.176847][ T5630] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 80.178110][ T5630] x11: 0000000000000000 x10: 0000000000000000 x9 : 7a0d18b9a85b4f00 [ 80.179335][ T5630] x8 : 7a0d18b9a85b4f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.180584][ T5630] x5 : ffff800021f57358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 80.181803][ T5630] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.183047][ T5630] Call trace: [ 80.183535][ T5630] __btrfs_unlink_inode+0x908/0xb00 [ 80.184416][ T5630] btrfs_unlink+0x108/0x258 [ 80.185144][ T5630] vfs_unlink+0x2e0/0x4f4 [ 80.185854][ T5630] do_unlinkat+0x31c/0x600 [ 80.186567][ T5630] __arm64_sys_unlinkat+0xe0/0xfc [ 80.187411][ T5630] invoke_syscall+0x98/0x2b8 [ 80.188131][ T5630] el0_svc_common+0x138/0x258 [ 80.188938][ T5630] do_el0_svc+0x58/0x14c [ 80.189651][ T5630] el0_svc+0x78/0x1e0 [ 80.190306][ T5630] el0t_64_sync_handler+0xcc/0xe4 [ 80.191103][ T5630] el0t_64_sync+0x1a0/0x1a4 [ 80.191883][ T5630] irq event stamp: 79012 [ 80.192541][ T5630] hardirqs last enabled at (79011): [] __up_console_sem+0xb4/0x100 [ 80.194144][ T5630] hardirqs last disabled at (79012): [] el1_dbg+0x24/0x80 [ 80.195563][ T5630] softirqs last enabled at (78992): [] handle_softirqs+0xa4c/0xbf0 [ 80.197216][ T5630] softirqs last disabled at (78917): [] __irq_exit_rcu+0x240/0x440 [ 80.198704][ T5630] ---[ end trace b4216ca0bf747850 ]--- [ 80.201642][ T5630] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 80.203271][ T5630] BTRFS info (device loop0): forced readonly [ 80.334782][ T5653] loop0: detected capacity change from 0 to 32768 [ 80.374082][ T5653] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.39 (5653) [ 80.377315][ T5653] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.379444][ T5653] BTRFS info (device loop0): using free space tree [ 80.380479][ T5653] BTRFS info (device loop0): has skinny extents [ 80.399852][ T5653] BTRFS info (device loop0): enabling ssd optimizations [ 80.405052][ T5653] FAULT_INJECTION: forcing a failure. [ 80.405052][ T5653] name failslab, interval 1, probability 0, space 0, times 0 [ 80.407612][ T5653] CPU: 0 PID: 5653 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 80.408971][ T5653] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.410450][ T5653] Call trace: [ 80.410928][ T5653] dump_backtrace+0x0/0x43c [ 80.411604][ T5653] show_stack+0x2c/0x3c [ 80.412241][ T5653] __dump_stack+0x30/0x40 [ 80.412919][ T5653] dump_stack_lvl+0xf8/0x160 [ 80.413627][ T5653] dump_stack+0x1c/0x5c [ 80.414235][ T5653] should_fail+0x3c0/0x51c [ 80.414934][ T5653] __should_failslab+0xbc/0x10c [ 80.415714][ T5653] should_failslab+0x10/0x28 [ 80.416451][ T5653] slab_pre_alloc_hook+0x64/0xec [ 80.417143][ T5653] kmem_cache_alloc_trace+0x98/0x3fc [ 80.417923][ T5653] btrfs_delete_delayed_dir_index+0x220/0x550 [ 80.418948][ T5653] __btrfs_unlink_inode+0x34c/0xb00 [ 80.419717][ T5653] btrfs_unlink+0x108/0x258 [ 80.420350][ T5653] vfs_unlink+0x2e0/0x4f4 [ 80.420987][ T5653] do_unlinkat+0x31c/0x600 [ 80.421650][ T5653] __arm64_sys_unlinkat+0xe0/0xfc [ 80.422490][ T5653] invoke_syscall+0x98/0x2b8 [ 80.423285][ T5653] el0_svc_common+0x138/0x258 [ 80.424015][ T5653] do_el0_svc+0x58/0x14c [ 80.424703][ T5653] el0_svc+0x78/0x1e0 [ 80.425314][ T5653] el0t_64_sync_handler+0xcc/0xe4 [ 80.426050][ T5653] el0t_64_sync+0x1a0/0x1a4 [ 80.428153][ T5653] ------------[ cut here ]------------ [ 80.429087][ T5653] WARNING: CPU: 0 PID: 5653 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 80.430630][ T5653] Modules linked in: [ 80.431217][ T5653] CPU: 0 PID: 5653 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 80.432683][ T5653] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.434303][ T5653] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.435645][ T5653] pc : __btrfs_unlink_inode+0x908/0xb00 [ 80.436592][ T5653] lr : __btrfs_unlink_inode+0x908/0xb00 [ 80.437539][ T5653] sp : ffff800021d17a60 [ 80.438219][ T5653] x29: ffff800021d17b10 x28: ffff0000d90f8000 x27: ffff0000e31a9c10 [ 80.439562][ T5653] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d4f9e000 [ 80.440903][ T5653] x23: 1ffff000043a2f54 x22: dfff800000000000 x21: ffff0000e955e220 [ 80.442281][ T5653] x20: ffff0000def959f8 x19: 1fffe0001bdf2b3f x18: 0000000000000001 [ 80.443681][ T5653] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 80.445027][ T5653] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 80.446306][ T5653] x11: 0000000000000000 x10: 0000000000000000 x9 : 085ae8470e64cf00 [ 80.447594][ T5653] x8 : 085ae8470e64cf00 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.448837][ T5653] x5 : ffff800021d17358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 80.450034][ T5653] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.451271][ T5653] Call trace: [ 80.451798][ T5653] __btrfs_unlink_inode+0x908/0xb00 [ 80.452575][ T5653] btrfs_unlink+0x108/0x258 [ 80.453242][ T5653] vfs_unlink+0x2e0/0x4f4 [ 80.453883][ T5653] do_unlinkat+0x31c/0x600 [ 80.454569][ T5653] __arm64_sys_unlinkat+0xe0/0xfc [ 80.455436][ T5653] invoke_syscall+0x98/0x2b8 [ 80.456193][ T5653] el0_svc_common+0x138/0x258 [ 80.456997][ T5653] do_el0_svc+0x58/0x14c [ 80.457726][ T5653] el0_svc+0x78/0x1e0 [ 80.458383][ T5653] el0t_64_sync_handler+0xcc/0xe4 [ 80.459198][ T5653] el0t_64_sync+0x1a0/0x1a4 [ 80.459967][ T5653] irq event stamp: 79400 [ 80.460634][ T5653] hardirqs last enabled at (79399): [] __up_console_sem+0xb4/0x100 [ 80.462113][ T5653] hardirqs last disabled at (79400): [] el1_dbg+0x24/0x80 [ 80.463513][ T5653] softirqs last enabled at (79380): [] handle_softirqs+0xa4c/0xbf0 [ 80.464981][ T5653] softirqs last disabled at (79343): [] __irq_exit_rcu+0x240/0x440 [ 80.466535][ T5653] ---[ end trace b4216ca0bf747851 ]--- [ 80.469199][ T5653] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 80.470681][ T5653] BTRFS info (device loop0): forced readonly [ 80.650100][ T5675] loop0: detected capacity change from 0 to 32768 [ 80.692327][ T5675] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.40 (5675) [ 80.695368][ T5675] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.697302][ T5675] BTRFS info (device loop0): using free space tree [ 80.698320][ T5675] BTRFS info (device loop0): has skinny extents [ 80.706066][ T5675] BTRFS info (device loop0): enabling ssd optimizations [ 80.709983][ T5675] FAULT_INJECTION: forcing a failure. [ 80.709983][ T5675] name failslab, interval 1, probability 0, space 0, times 0 [ 80.712013][ T5675] CPU: 1 PID: 5675 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 80.713427][ T5675] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.714992][ T5675] Call trace: [ 80.715561][ T5675] dump_backtrace+0x0/0x43c [ 80.716328][ T5675] show_stack+0x2c/0x3c [ 80.716978][ T5675] __dump_stack+0x30/0x40 [ 80.717648][ T5675] dump_stack_lvl+0xf8/0x160 [ 80.718371][ T5675] dump_stack+0x1c/0x5c [ 80.719098][ T5675] should_fail+0x3c0/0x51c [ 80.719849][ T5675] __should_failslab+0xbc/0x10c [ 80.720676][ T5675] should_failslab+0x10/0x28 [ 80.721404][ T5675] slab_pre_alloc_hook+0x64/0xec [ 80.722168][ T5675] kmem_cache_alloc_trace+0x98/0x3fc [ 80.722989][ T5675] btrfs_delete_delayed_dir_index+0x220/0x550 [ 80.723954][ T5675] __btrfs_unlink_inode+0x34c/0xb00 [ 80.724735][ T5675] btrfs_unlink+0x108/0x258 [ 80.725516][ T5675] vfs_unlink+0x2e0/0x4f4 [ 80.726226][ T5675] do_unlinkat+0x31c/0x600 [ 80.726924][ T5675] __arm64_sys_unlinkat+0xe0/0xfc [ 80.727695][ T5675] invoke_syscall+0x98/0x2b8 [ 80.728398][ T5675] el0_svc_common+0x138/0x258 [ 80.729088][ T5675] do_el0_svc+0x58/0x14c [ 80.729715][ T5675] el0_svc+0x78/0x1e0 [ 80.730336][ T5675] el0t_64_sync_handler+0xcc/0xe4 [ 80.731062][ T5675] el0t_64_sync+0x1a0/0x1a4 [ 80.732873][ T5675] ------------[ cut here ]------------ [ 80.733825][ T5675] WARNING: CPU: 1 PID: 5675 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 80.735301][ T5675] Modules linked in: [ 80.735893][ T5675] CPU: 1 PID: 5675 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 80.737260][ T5675] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.738882][ T5675] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.740121][ T5675] pc : __btrfs_unlink_inode+0x908/0xb00 [ 80.741044][ T5675] lr : __btrfs_unlink_inode+0x908/0xb00 [ 80.741923][ T5675] sp : ffff8000222a7a60 [ 80.742574][ T5675] x29: ffff8000222a7b10 x28: ffff0000d84da000 x27: ffff0000e9547410 [ 80.743881][ T5675] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c2a02b00 [ 80.745243][ T5675] x23: 1ffff00004454f54 x22: dfff800000000000 x21: ffff0000e95e8000 [ 80.746445][ T5675] x20: ffff0000dcf5d7e8 x19: 1fffe0001b9ebafd x18: 0000000000000001 [ 80.747730][ T5675] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 80.749061][ T5675] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 80.750372][ T5675] x11: 0000000000000000 x10: 0000000000000000 x9 : 4e873f40d9de8500 [ 80.751667][ T5675] x8 : 4e873f40d9de8500 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.752911][ T5675] x5 : ffff8000222a7358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 80.754223][ T5675] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.755427][ T5675] Call trace: [ 80.756024][ T5675] __btrfs_unlink_inode+0x908/0xb00 [ 80.756820][ T5675] btrfs_unlink+0x108/0x258 [ 80.757607][ T5675] vfs_unlink+0x2e0/0x4f4 [ 80.758346][ T5675] do_unlinkat+0x31c/0x600 [ 80.759126][ T5675] __arm64_sys_unlinkat+0xe0/0xfc [ 80.760001][ T5675] invoke_syscall+0x98/0x2b8 [ 80.760757][ T5675] el0_svc_common+0x138/0x258 [ 80.761457][ T5675] do_el0_svc+0x58/0x14c [ 80.762080][ T5675] el0_svc+0x78/0x1e0 [ 80.762713][ T5675] el0t_64_sync_handler+0xcc/0xe4 [ 80.763490][ T5675] el0t_64_sync+0x1a0/0x1a4 [ 80.764206][ T5675] irq event stamp: 78900 [ 80.764891][ T5675] hardirqs last enabled at (78899): [] __up_console_sem+0xb4/0x100 [ 80.766426][ T5675] hardirqs last disabled at (78900): [] el1_dbg+0x24/0x80 [ 80.767879][ T5675] softirqs last enabled at (78880): [] handle_softirqs+0xa4c/0xbf0 [ 80.769437][ T5675] softirqs last disabled at (78835): [] __irq_exit_rcu+0x240/0x440 [ 80.771030][ T5675] ---[ end trace b4216ca0bf747852 ]--- [ 80.772011][ T5675] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 80.773575][ T5675] BTRFS info (device loop0): forced readonly [ 80.908853][ T5697] loop0: detected capacity change from 0 to 32768 [ 80.911201][ T5697] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.41 (5697) [ 80.953604][ T5697] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.955051][ T5697] BTRFS info (device loop0): using free space tree [ 80.956238][ T5697] BTRFS info (device loop0): has skinny extents [ 80.963862][ T5697] BTRFS info (device loop0): enabling ssd optimizations [ 80.969805][ T5697] FAULT_INJECTION: forcing a failure. [ 80.969805][ T5697] name failslab, interval 1, probability 0, space 0, times 0 [ 80.971873][ T5697] CPU: 0 PID: 5697 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 80.973273][ T5697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.974862][ T5697] Call trace: [ 80.975385][ T5697] dump_backtrace+0x0/0x43c [ 80.976101][ T5697] show_stack+0x2c/0x3c [ 80.976744][ T5697] __dump_stack+0x30/0x40 [ 80.977414][ T5697] dump_stack_lvl+0xf8/0x160 [ 80.978088][ T5697] dump_stack+0x1c/0x5c [ 80.978714][ T5697] should_fail+0x3c0/0x51c [ 80.979434][ T5697] __should_failslab+0xbc/0x10c [ 80.980176][ T5697] should_failslab+0x10/0x28 [ 80.980950][ T5697] slab_pre_alloc_hook+0x64/0xec [ 80.981754][ T5697] kmem_cache_alloc_trace+0x98/0x3fc [ 80.982648][ T5697] btrfs_delete_delayed_dir_index+0x220/0x550 [ 80.983645][ T5697] __btrfs_unlink_inode+0x34c/0xb00 [ 80.984491][ T5697] btrfs_unlink+0x108/0x258 [ 80.985203][ T5697] vfs_unlink+0x2e0/0x4f4 [ 80.985924][ T5697] do_unlinkat+0x31c/0x600 [ 80.986649][ T5697] __arm64_sys_unlinkat+0xe0/0xfc [ 80.987426][ T5697] invoke_syscall+0x98/0x2b8 [ 80.988116][ T5697] el0_svc_common+0x138/0x258 [ 80.988820][ T5697] do_el0_svc+0x58/0x14c [ 80.989494][ T5697] el0_svc+0x78/0x1e0 [ 80.990142][ T5697] el0t_64_sync_handler+0xcc/0xe4 [ 80.991042][ T5697] el0t_64_sync+0x1a0/0x1a4 [ 80.993172][ T5697] ------------[ cut here ]------------ [ 80.994207][ T5697] WARNING: CPU: 0 PID: 5697 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 80.995687][ T5697] Modules linked in: [ 80.996331][ T5697] CPU: 0 PID: 5697 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 80.997620][ T5697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 80.999111][ T5697] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.000292][ T5697] pc : __btrfs_unlink_inode+0x908/0xb00 [ 81.001170][ T5697] lr : __btrfs_unlink_inode+0x908/0xb00 [ 81.002054][ T5697] sp : ffff800022067a60 [ 81.002739][ T5697] x29: ffff800022067b10 x28: ffff0000d8bb0000 x27: ffff0000e31aa010 [ 81.004109][ T5697] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c9d76c60 [ 81.005361][ T5697] x23: 1ffff0000440cf54 x22: dfff800000000000 x21: ffff0000e947ce80 [ 81.006693][ T5697] x20: ffff0000def95898 x19: 1fffe0001bdf2b13 x18: 0000000000000001 [ 81.007970][ T5697] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 81.009292][ T5697] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.010609][ T5697] x11: 0000000000000000 x10: 0000000000000000 x9 : ddc95545e90df400 [ 81.011937][ T5697] x8 : ddc95545e90df400 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.013288][ T5697] x5 : ffff800022067358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 81.014570][ T5697] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.015820][ T5697] Call trace: [ 81.016363][ T5697] __btrfs_unlink_inode+0x908/0xb00 [ 81.017245][ T5697] btrfs_unlink+0x108/0x258 [ 81.018014][ T5697] vfs_unlink+0x2e0/0x4f4 [ 81.018733][ T5697] do_unlinkat+0x31c/0x600 [ 81.019463][ T5697] __arm64_sys_unlinkat+0xe0/0xfc [ 81.020226][ T5697] invoke_syscall+0x98/0x2b8 [ 81.020935][ T5697] el0_svc_common+0x138/0x258 [ 81.021685][ T5697] do_el0_svc+0x58/0x14c [ 81.022315][ T5697] el0_svc+0x78/0x1e0 [ 81.022966][ T5697] el0t_64_sync_handler+0xcc/0xe4 [ 81.023757][ T5697] el0t_64_sync+0x1a0/0x1a4 [ 81.024437][ T5697] irq event stamp: 79374 [ 81.025113][ T5697] hardirqs last enabled at (79373): [] __up_console_sem+0xb4/0x100 [ 81.026638][ T5697] hardirqs last disabled at (79374): [] el1_dbg+0x24/0x80 [ 81.027949][ T5697] softirqs last enabled at (79354): [] handle_softirqs+0xa4c/0xbf0 [ 81.029608][ T5697] softirqs last disabled at (79327): [] __irq_exit_rcu+0x240/0x440 [ 81.031175][ T5697] ---[ end trace b4216ca0bf747853 ]--- [ 81.032962][ T5697] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 81.034491][ T5697] BTRFS info (device loop0): forced readonly [ 81.164969][ T5719] loop0: detected capacity change from 0 to 32768 [ 81.215505][ T5719] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.42 (5719) [ 81.221427][ T5719] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.223034][ T5719] BTRFS info (device loop0): using free space tree [ 81.224010][ T5719] BTRFS info (device loop0): has skinny extents [ 81.242059][ T5719] BTRFS info (device loop0): enabling ssd optimizations [ 81.246442][ T5719] FAULT_INJECTION: forcing a failure. [ 81.246442][ T5719] name failslab, interval 1, probability 0, space 0, times 0 [ 81.248479][ T5719] CPU: 1 PID: 5719 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 81.249811][ T5719] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.251279][ T5719] Call trace: [ 81.251763][ T5719] dump_backtrace+0x0/0x43c [ 81.252389][ T5719] show_stack+0x2c/0x3c [ 81.253080][ T5719] __dump_stack+0x30/0x40 [ 81.253704][ T5719] dump_stack_lvl+0xf8/0x160 [ 81.254379][ T5719] dump_stack+0x1c/0x5c [ 81.254974][ T5719] should_fail+0x3c0/0x51c [ 81.255688][ T5719] __should_failslab+0xbc/0x10c [ 81.256430][ T5719] should_failslab+0x10/0x28 [ 81.257142][ T5719] slab_pre_alloc_hook+0x64/0xec [ 81.257996][ T5719] kmem_cache_alloc_trace+0x98/0x3fc [ 81.258894][ T5719] btrfs_delete_delayed_dir_index+0x220/0x550 [ 81.259910][ T5719] __btrfs_unlink_inode+0x34c/0xb00 [ 81.260730][ T5719] btrfs_unlink+0x108/0x258 [ 81.261440][ T5719] vfs_unlink+0x2e0/0x4f4 [ 81.262141][ T5719] do_unlinkat+0x31c/0x600 [ 81.262876][ T5719] __arm64_sys_unlinkat+0xe0/0xfc [ 81.263713][ T5719] invoke_syscall+0x98/0x2b8 [ 81.264490][ T5719] el0_svc_common+0x138/0x258 [ 81.265209][ T5719] do_el0_svc+0x58/0x14c [ 81.265902][ T5719] el0_svc+0x78/0x1e0 [ 81.266517][ T5719] el0t_64_sync_handler+0xcc/0xe4 [ 81.267268][ T5719] el0t_64_sync+0x1a0/0x1a4 [ 81.269324][ T5719] ------------[ cut here ]------------ [ 81.270265][ T5719] WARNING: CPU: 1 PID: 5719 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 81.271765][ T5719] Modules linked in: [ 81.272492][ T5719] CPU: 1 PID: 5719 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 81.273864][ T5719] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.275362][ T5719] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.276609][ T5719] pc : __btrfs_unlink_inode+0x908/0xb00 [ 81.277471][ T5719] lr : __btrfs_unlink_inode+0x908/0xb00 [ 81.278388][ T5719] sp : ffff800022547a60 [ 81.279007][ T5719] x29: ffff800022547b10 x28: ffff0000cdf84000 x27: ffff0000e9547810 [ 81.280321][ T5719] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d1642d10 [ 81.281690][ T5719] x23: 1ffff000044a8f54 x22: dfff800000000000 x21: ffff0000e95eb110 [ 81.282967][ T5719] x20: ffff0000dcf5d948 x19: 1fffe0001b9ebb29 x18: 0000000000000001 [ 81.284258][ T5719] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 81.285463][ T5719] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.286673][ T5719] x11: 0000000000000000 x10: 0000000000000000 x9 : 995dfee9cbff5500 [ 81.287950][ T5719] x8 : 995dfee9cbff5500 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.289219][ T5719] x5 : ffff800022547358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 81.290553][ T5719] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.291902][ T5719] Call trace: [ 81.292402][ T5719] __btrfs_unlink_inode+0x908/0xb00 [ 81.293244][ T5719] btrfs_unlink+0x108/0x258 [ 81.293949][ T5719] vfs_unlink+0x2e0/0x4f4 [ 81.294717][ T5719] do_unlinkat+0x31c/0x600 [ 81.295449][ T5719] __arm64_sys_unlinkat+0xe0/0xfc [ 81.296239][ T5719] invoke_syscall+0x98/0x2b8 [ 81.296983][ T5719] el0_svc_common+0x138/0x258 [ 81.297784][ T5719] do_el0_svc+0x58/0x14c [ 81.298515][ T5719] el0_svc+0x78/0x1e0 [ 81.299171][ T5719] el0t_64_sync_handler+0xcc/0xe4 [ 81.299978][ T5719] el0t_64_sync+0x1a0/0x1a4 [ 81.300732][ T5719] irq event stamp: 80278 [ 81.301454][ T5719] hardirqs last enabled at (80277): [] __up_console_sem+0xb4/0x100 [ 81.302993][ T5719] hardirqs last disabled at (80278): [] el1_dbg+0x24/0x80 [ 81.304332][ T5719] softirqs last enabled at (80258): [] handle_softirqs+0xa4c/0xbf0 [ 81.305708][ T5719] softirqs last disabled at (80239): [] __irq_exit_rcu+0x240/0x440 [ 81.307091][ T5719] ---[ end trace b4216ca0bf747854 ]--- [ 81.308486][ T5719] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 81.310029][ T5719] BTRFS info (device loop0): forced readonly [ 81.441967][ T5741] loop0: detected capacity change from 0 to 32768 [ 81.524383][ T5741] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.43 (5741) [ 81.527666][ T5741] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.529092][ T5741] BTRFS info (device loop0): using free space tree [ 81.530125][ T5741] BTRFS info (device loop0): has skinny extents [ 81.547064][ T5741] BTRFS info (device loop0): enabling ssd optimizations [ 81.551672][ T5741] FAULT_INJECTION: forcing a failure. [ 81.551672][ T5741] name failslab, interval 1, probability 0, space 0, times 0 [ 81.556449][ T5741] CPU: 0 PID: 5741 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 81.557776][ T5741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.559401][ T5741] Call trace: [ 81.559937][ T5741] dump_backtrace+0x0/0x43c [ 81.560698][ T5741] show_stack+0x2c/0x3c [ 81.561368][ T5741] __dump_stack+0x30/0x40 [ 81.562072][ T5741] dump_stack_lvl+0xf8/0x160 [ 81.562810][ T5741] dump_stack+0x1c/0x5c [ 81.563456][ T5741] should_fail+0x3c0/0x51c [ 81.564175][ T5741] __should_failslab+0xbc/0x10c [ 81.564996][ T5741] should_failslab+0x10/0x28 [ 81.565759][ T5741] slab_pre_alloc_hook+0x64/0xec [ 81.566556][ T5741] kmem_cache_alloc_trace+0x98/0x3fc [ 81.567367][ T5741] btrfs_delete_delayed_dir_index+0x220/0x550 [ 81.568293][ T5741] __btrfs_unlink_inode+0x34c/0xb00 [ 81.569080][ T5741] btrfs_unlink+0x108/0x258 [ 81.569727][ T5741] vfs_unlink+0x2e0/0x4f4 [ 81.570366][ T5741] do_unlinkat+0x31c/0x600 [ 81.571081][ T5741] __arm64_sys_unlinkat+0xe0/0xfc [ 81.571882][ T5741] invoke_syscall+0x98/0x2b8 [ 81.572584][ T5741] el0_svc_common+0x138/0x258 [ 81.573368][ T5741] do_el0_svc+0x58/0x14c [ 81.574078][ T5741] el0_svc+0x78/0x1e0 [ 81.574701][ T5741] el0t_64_sync_handler+0xcc/0xe4 [ 81.575477][ T5741] el0t_64_sync+0x1a0/0x1a4 [ 81.576490][ T5741] ------------[ cut here ]------------ [ 81.577504][ T5741] WARNING: CPU: 0 PID: 5741 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 81.579054][ T5741] Modules linked in: [ 81.579695][ T5741] CPU: 0 PID: 5741 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 81.581082][ T5741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.582716][ T5741] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.584053][ T5741] pc : __btrfs_unlink_inode+0x908/0xb00 [ 81.584987][ T5741] lr : __btrfs_unlink_inode+0x908/0xb00 [ 81.585864][ T5741] sp : ffff800022547a60 [ 81.586551][ T5741] x29: ffff800022547b10 x28: ffff0000d03f8000 x27: ffff0000e31aa810 [ 81.587853][ T5741] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c8fe7d10 [ 81.589096][ T5741] x23: 1ffff000044a8f54 x22: dfff800000000000 x21: ffff0000e947b110 [ 81.590370][ T5741] x20: ffff0000def95738 x19: 1fffe0001bdf2ae7 x18: 0000000000000001 [ 81.591656][ T5741] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 81.592972][ T5741] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.594290][ T5741] x11: 0000000000000000 x10: 0000000000000000 x9 : 27768df850c5c000 [ 81.595634][ T5741] x8 : 27768df850c5c000 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.596959][ T5741] x5 : ffff800022547358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 81.598212][ T5741] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.599473][ T5741] Call trace: [ 81.600011][ T5741] __btrfs_unlink_inode+0x908/0xb00 [ 81.600802][ T5741] btrfs_unlink+0x108/0x258 [ 81.601545][ T5741] vfs_unlink+0x2e0/0x4f4 [ 81.602190][ T5741] do_unlinkat+0x31c/0x600 [ 81.602919][ T5741] __arm64_sys_unlinkat+0xe0/0xfc [ 81.603752][ T5741] invoke_syscall+0x98/0x2b8 [ 81.604511][ T5741] el0_svc_common+0x138/0x258 [ 81.605319][ T5741] do_el0_svc+0x58/0x14c [ 81.606018][ T5741] el0_svc+0x78/0x1e0 [ 81.606661][ T5741] el0t_64_sync_handler+0xcc/0xe4 [ 81.607471][ T5741] el0t_64_sync+0x1a0/0x1a4 [ 81.608189][ T5741] irq event stamp: 78918 [ 81.608870][ T5741] hardirqs last enabled at (78917): [] __up_console_sem+0xb4/0x100 [ 81.610375][ T5741] hardirqs last disabled at (78918): [] el1_dbg+0x24/0x80 [ 81.611749][ T5741] softirqs last enabled at (78898): [] handle_softirqs+0xa4c/0xbf0 [ 81.613280][ T5741] softirqs last disabled at (78855): [] __irq_exit_rcu+0x240/0x440 [ 81.614827][ T5741] ---[ end trace b4216ca0bf747855 ]--- [ 81.616025][ T5741] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 81.617489][ T5741] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:21 executed programs: 31 [ 81.747907][ T5763] loop0: detected capacity change from 0 to 32768 [ 81.783490][ T5763] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.44 (5763) [ 81.824667][ T5763] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.826157][ T5763] BTRFS info (device loop0): using free space tree [ 81.827174][ T5763] BTRFS info (device loop0): has skinny extents [ 81.835203][ T5763] BTRFS info (device loop0): enabling ssd optimizations [ 81.838829][ T5763] FAULT_INJECTION: forcing a failure. [ 81.838829][ T5763] name failslab, interval 1, probability 0, space 0, times 0 [ 81.840812][ T5763] CPU: 1 PID: 5763 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 81.842040][ T5763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.843682][ T5763] Call trace: [ 81.844234][ T5763] dump_backtrace+0x0/0x43c [ 81.844962][ T5763] show_stack+0x2c/0x3c [ 81.845608][ T5763] __dump_stack+0x30/0x40 [ 81.846294][ T5763] dump_stack_lvl+0xf8/0x160 [ 81.846956][ T5763] dump_stack+0x1c/0x5c [ 81.847590][ T5763] should_fail+0x3c0/0x51c [ 81.848308][ T5763] __should_failslab+0xbc/0x10c [ 81.849147][ T5763] should_failslab+0x10/0x28 [ 81.849970][ T5763] slab_pre_alloc_hook+0x64/0xec [ 81.850803][ T5763] kmem_cache_alloc_trace+0x98/0x3fc [ 81.851658][ T5763] btrfs_delete_delayed_dir_index+0x220/0x550 [ 81.852623][ T5763] __btrfs_unlink_inode+0x34c/0xb00 [ 81.853449][ T5763] btrfs_unlink+0x108/0x258 [ 81.854168][ T5763] vfs_unlink+0x2e0/0x4f4 [ 81.854912][ T5763] do_unlinkat+0x31c/0x600 [ 81.855642][ T5763] __arm64_sys_unlinkat+0xe0/0xfc [ 81.856444][ T5763] invoke_syscall+0x98/0x2b8 [ 81.857128][ T5763] el0_svc_common+0x138/0x258 [ 81.857915][ T5763] do_el0_svc+0x58/0x14c [ 81.858538][ T5763] el0_svc+0x78/0x1e0 [ 81.859168][ T5763] el0t_64_sync_handler+0xcc/0xe4 [ 81.859994][ T5763] el0t_64_sync+0x1a0/0x1a4 [ 81.862314][ T5763] ------------[ cut here ]------------ [ 81.863223][ T5763] WARNING: CPU: 1 PID: 5763 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 81.864804][ T5763] Modules linked in: [ 81.865458][ T5763] CPU: 1 PID: 5763 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 81.866791][ T5763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 81.868374][ T5763] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.869668][ T5763] pc : __btrfs_unlink_inode+0x908/0xb00 [ 81.870537][ T5763] lr : __btrfs_unlink_inode+0x908/0xb00 [ 81.871442][ T5763] sp : ffff800022a87a60 [ 81.872127][ T5763] x29: ffff800022a87b10 x28: ffff0000c96bc000 x27: ffff0000e9545810 [ 81.873421][ T5763] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d68b7420 [ 81.874770][ T5763] x23: 1ffff00004550f54 x22: dfff800000000000 x21: ffff0000e9561d70 [ 81.876061][ T5763] x20: ffff0000dcf5daa8 x19: 1fffe0001b9ebb55 x18: 0000000000000001 [ 81.877342][ T5763] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 81.878594][ T5763] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.879872][ T5763] x11: 0000000000000000 x10: 0000000000000000 x9 : 540ad666040a2500 [ 81.881078][ T5763] x8 : 540ad666040a2500 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.882354][ T5763] x5 : ffff800022a87358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 81.883655][ T5763] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.884844][ T5763] Call trace: [ 81.885349][ T5763] __btrfs_unlink_inode+0x908/0xb00 [ 81.886101][ T5763] btrfs_unlink+0x108/0x258 [ 81.886740][ T5763] vfs_unlink+0x2e0/0x4f4 [ 81.887382][ T5763] do_unlinkat+0x31c/0x600 [ 81.888088][ T5763] __arm64_sys_unlinkat+0xe0/0xfc [ 81.888959][ T5763] invoke_syscall+0x98/0x2b8 [ 81.889654][ T5763] el0_svc_common+0x138/0x258 [ 81.890405][ T5763] do_el0_svc+0x58/0x14c [ 81.891030][ T5763] el0_svc+0x78/0x1e0 [ 81.891642][ T5763] el0t_64_sync_handler+0xcc/0xe4 [ 81.892423][ T5763] el0t_64_sync+0x1a0/0x1a4 [ 81.893134][ T5763] irq event stamp: 78872 [ 81.893828][ T5763] hardirqs last enabled at (78871): [] __up_console_sem+0xb4/0x100 [ 81.895370][ T5763] hardirqs last disabled at (78872): [] el1_dbg+0x24/0x80 [ 81.896829][ T5763] softirqs last enabled at (78852): [] handle_softirqs+0xa4c/0xbf0 [ 81.898366][ T5763] softirqs last disabled at (78833): [] __irq_exit_rcu+0x240/0x440 [ 81.899896][ T5763] ---[ end trace b4216ca0bf747856 ]--- [ 81.903964][ T5763] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 81.905549][ T5763] BTRFS info (device loop0): forced readonly [ 82.045290][ T5785] loop0: detected capacity change from 0 to 32768 [ 82.097488][ T5785] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.45 (5785) [ 82.101950][ T5785] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.103758][ T5785] BTRFS info (device loop0): using free space tree [ 82.104762][ T5785] BTRFS info (device loop0): has skinny extents [ 82.111506][ T5785] BTRFS info (device loop0): enabling ssd optimizations [ 82.116174][ T5785] FAULT_INJECTION: forcing a failure. [ 82.116174][ T5785] name failslab, interval 1, probability 0, space 0, times 0 [ 82.118221][ T5785] CPU: 0 PID: 5785 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 82.119603][ T5785] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.121229][ T5785] Call trace: [ 82.121794][ T5785] dump_backtrace+0x0/0x43c [ 82.122580][ T5785] show_stack+0x2c/0x3c [ 82.123283][ T5785] __dump_stack+0x30/0x40 [ 82.123990][ T5785] dump_stack_lvl+0xf8/0x160 [ 82.124765][ T5785] dump_stack+0x1c/0x5c [ 82.125451][ T5785] should_fail+0x3c0/0x51c [ 82.126153][ T5785] __should_failslab+0xbc/0x10c [ 82.126896][ T5785] should_failslab+0x10/0x28 [ 82.127611][ T5785] slab_pre_alloc_hook+0x64/0xec [ 82.128415][ T5785] kmem_cache_alloc+0x94/0x3e4 [ 82.129191][ T5785] btrfs_alloc_path+0x5c/0x68 [ 82.129937][ T5785] __btrfs_unlink_inode+0x1d8/0xb00 [ 82.130746][ T5785] btrfs_unlink+0x108/0x258 [ 82.131477][ T5785] vfs_unlink+0x2e0/0x4f4 [ 82.132189][ T5785] do_unlinkat+0x31c/0x600 [ 82.132944][ T5785] __arm64_sys_unlinkat+0xe0/0xfc [ 82.133801][ T5785] invoke_syscall+0x98/0x2b8 [ 82.134601][ T5785] el0_svc_common+0x138/0x258 [ 82.135334][ T5785] do_el0_svc+0x58/0x14c [ 82.136039][ T5785] el0_svc+0x78/0x1e0 [ 82.136670][ T5785] el0t_64_sync_handler+0xcc/0xe4 [ 82.137496][ T5785] el0t_64_sync+0x1a0/0x1a4 [ 82.202691][ T4919] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4919) [ 82.301763][ T5806] loop0: detected capacity change from 0 to 32768 [ 82.356364][ T5806] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.357877][ T5806] BTRFS info (device loop0): using free space tree [ 82.358868][ T5806] BTRFS info (device loop0): has skinny extents [ 82.375868][ T5806] BTRFS info (device loop0): enabling ssd optimizations [ 82.379828][ T5806] FAULT_INJECTION: forcing a failure. [ 82.379828][ T5806] name failslab, interval 1, probability 0, space 0, times 0 [ 82.381762][ T5806] CPU: 1 PID: 5806 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 82.383230][ T5806] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.384842][ T5806] Call trace: [ 82.385351][ T5806] dump_backtrace+0x0/0x43c [ 82.386135][ T5806] show_stack+0x2c/0x3c [ 82.386825][ T5806] __dump_stack+0x30/0x40 [ 82.387537][ T5806] dump_stack_lvl+0xf8/0x160 [ 82.388297][ T5806] dump_stack+0x1c/0x5c [ 82.389002][ T5806] should_fail+0x3c0/0x51c [ 82.389753][ T5806] __should_failslab+0xbc/0x10c [ 82.390571][ T5806] should_failslab+0x10/0x28 [ 82.391353][ T5806] slab_pre_alloc_hook+0x64/0xec [ 82.392206][ T5806] kmem_cache_alloc_trace+0x98/0x3fc [ 82.393116][ T5806] btrfs_delete_delayed_dir_index+0x220/0x550 [ 82.394107][ T5806] __btrfs_unlink_inode+0x34c/0xb00 [ 82.394984][ T5806] btrfs_unlink+0x108/0x258 [ 82.395704][ T5806] vfs_unlink+0x2e0/0x4f4 [ 82.396394][ T5806] do_unlinkat+0x31c/0x600 [ 82.397106][ T5806] __arm64_sys_unlinkat+0xe0/0xfc [ 82.397993][ T5806] invoke_syscall+0x98/0x2b8 [ 82.398782][ T5806] el0_svc_common+0x138/0x258 [ 82.399526][ T5806] do_el0_svc+0x58/0x14c [ 82.400279][ T5806] el0_svc+0x78/0x1e0 [ 82.400907][ T5806] el0t_64_sync_handler+0xcc/0xe4 [ 82.401728][ T5806] el0t_64_sync+0x1a0/0x1a4 [ 82.402815][ T5806] ------------[ cut here ]------------ [ 82.403810][ T5806] WARNING: CPU: 1 PID: 5806 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 82.405353][ T5806] Modules linked in: [ 82.405933][ T5806] CPU: 1 PID: 5806 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 82.407358][ T5806] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.409045][ T5806] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.410265][ T5806] pc : __btrfs_unlink_inode+0x908/0xb00 [ 82.411090][ T5806] lr : __btrfs_unlink_inode+0x908/0xb00 [ 82.411943][ T5806] sp : ffff800022bc7a60 [ 82.412615][ T5806] x29: ffff800022bc7b10 x28: ffff0000d8534000 x27: ffff0000e9545c10 [ 82.414040][ T5806] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c9ad1bb0 [ 82.415357][ T5806] x23: 1ffff00004578f54 x22: dfff800000000000 x21: ffff0000e9566220 [ 82.416498][ T5806] x20: ffff0000dcf5dd68 x19: 1fffe0001b9ebbad x18: 0000000000000001 [ 82.417822][ T5806] x17: 0000000000000000 x16: ffff800008302038 x15: 00000000ffffffff [ 82.419058][ T5806] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 82.420279][ T5806] x11: 0000000000000000 x10: 0000000000000000 x9 : 0cc6567989a23c00 [ 82.421684][ T5806] x8 : 0cc6567989a23c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 82.422868][ T5806] x5 : ffff800022bc7358 x4 : ffff80001424f3e0 x3 : ffff800008302148 [ 82.424242][ T5806] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 82.425477][ T5806] Call trace: [ 82.426066][ T5806] __btrfs_unlink_inode+0x908/0xb00 [ 82.426973][ T5806] btrfs_unlink+0x108/0x258 [ 82.427672][ T5806] vfs_unlink+0x2e0/0x4f4 [ 82.428308][ T5806] do_unlinkat+0x31c/0x600 [ 82.429125][ T5806] __arm64_sys_unlinkat+0xe0/0xfc [ 82.429937][ T5806] invoke_syscall+0x98/0x2b8 [ 82.430672][ T5806] el0_svc_common+0x138/0x258 [ 82.431445][ T5806] do_el0_svc+0x58/0x14c [ 82.432121][ T5806] el0_svc+0x78/0x1e0 [ 82.432774][ T5806] el0t_64_sync_handler+0xcc/0xe4 [ 82.433557][ T5806] el0t_64_sync+0x1a0/0x1a4 [ 82.434245][ T5806] irq event stamp: 79494 [ 82.434922][ T5806] hardirqs last enabled at (79493): [] __up_console_sem+0xb4/0x100 [ 82.436495][ T5806] hardirqs last disabled at (79494): [] el1_dbg+0x24/0x80 [ 82.437837][ T5806] softirqs last enabled at (79474): [] handle_softirqs+0xa4c/0xbf0 [ 82.439230][ T5806] softirqs last disabled at (79433): [] __irq_exit_rcu+0x240/0x440 [ 82.440721][ T5806] ---[ end trace b4216ca0bf747857 ]--- [ 82.442023][ T5806] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 82.443701][ T5806] BTRFS info (device loop0): forced readonly [ 82.575711][ T5829] loop0: detected capacity change from 0 to 32768 [ 82.614281][ T5829] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.47 (5829) [ 82.617443][ T5829] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.618787][ T5829] BTRFS info (device loop0): using free space tree [ 82.619725][ T5829] BTRFS info (device loop0): has skinny extents [ 82.627984][ T5829] BTRFS info (device loop0): enabling ssd optimizations [ 82.632757][ T5829] FAULT_INJECTION: forcing a failure. [ 82.632757][ T5829] name failslab, interval 1, probability 0, space 0, times 0 [ 82.634845][ T5829] CPU: 1 PID: 5829 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 82.636194][ T5829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.637755][ T5829] Call trace: [ 82.638246][ T5829] dump_backtrace+0x0/0x43c [ 82.638886][ T5829] show_stack+0x2c/0x3c [ 82.639495][ T5829] __dump_stack+0x30/0x40 [ 82.640126][ T5829] dump_stack_lvl+0xf8/0x160 [ 82.640795][ T5829] dump_stack+0x1c/0x5c [ 82.641475][ T5829] should_fail+0x3c0/0x51c [ 82.642165][ T5829] __should_failslab+0xbc/0x10c [ 82.642919][ T5829] should_failslab+0x10/0x28 [ 82.643675][ T5829] slab_pre_alloc_hook+0x64/0xec [ 82.644444][ T5829] kmem_cache_alloc_trace+0x98/0x3fc [ 82.645303][ T5829] btrfs_delete_delayed_dir_index+0x220/0x550 [ 82.646334][ T5829] __btrfs_unlink_inode+0x34c/0xb00 [ 82.647169][ T5829] btrfs_unlink+0x108/0x258 [ 82.647862][ T5829] vfs_unlink+0x2e0/0x4f4 [ 82.648527][ T5829] do_unlinkat+0x31c/0x600 [ 82.649180][ T5829] __arm64_sys_unlinkat+0xe0/0xfc [ 82.649999][ T5829] invoke_syscall+0x98/0x2b8 [ 82.650721][ T5829] el0_svc_common+0x138/0x258 [ 82.651485][ T5829] do_el0_svc+0x58/0x14c [ 82.652182][ T5829] el0_svc+0x78/0x1e0 [ 82.652861][ T5829] el0t_64_sync_handler+0xcc/0xe4 [ 82.653659][ T5829] el0t_64_sync+0x1a0/0x1a4 [ 82.655649][ T5829] ------------[ cut here ]------------ [ 82.656619][ T5829] WARNING: CPU: 1 PID: 5829 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 82.658038][ T5829] Modules linked in: [ 82.658629][ T5829] CPU: 1 PID: 5829 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 82.659868][ T5829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 82.661251][ T5829] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.662463][ T5829] pc : __btrfs_unlink_inode+0x908/0xb00 [ 82.663317][ T5829] lr : __btrfs_unlink_inode+0x908/0xb00 [ 82.664277][ T5829] sp : ffff800022737a60 [ 82.665009][ T5829] x29: ffff800022737b10 x28: ffff0000cc3cc000 x27: ffff0000e9547c10 [ 82.666339][ T5829] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cad67c60 [ 82.667606][ T5829] x23: 1ffff000044e6f54 x22: dfff800000000000 x21: ffff0000e95ece80 [ 82.668881][ T5829] x20: ffff0000dcf5dec8 x19: 1fffe0001b9ebbd9 x18: 0000000000000001 [ 82.670054][ T5829] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 82.671349][ T5829] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 82.672713][ T5829] x11: 0000000000000000 x10: 0000000000000000 x9 : ea4d1731da4c1b00 [ 82.674000][ T5829] x8 : ea4d1731da4c1b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 82.675286][ T5829] x5 : ffff800022737358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 82.676638][ T5829] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 82.677867][ T5829] Call trace: [ 82.678364][ T5829] __btrfs_unlink_inode+0x908/0xb00 [ 82.679187][ T5829] btrfs_unlink+0x108/0x258 [ 82.679879][ T5829] vfs_unlink+0x2e0/0x4f4 [ 82.680563][ T5829] do_unlinkat+0x31c/0x600 [ 82.681267][ T5829] __arm64_sys_unlinkat+0xe0/0xfc [ 82.682046][ T5829] invoke_syscall+0x98/0x2b8 [ 82.682799][ T5829] el0_svc_common+0x138/0x258 [ 82.683541][ T5829] do_el0_svc+0x58/0x14c [ 82.684256][ T5829] el0_svc+0x78/0x1e0 [ 82.684896][ T5829] el0t_64_sync_handler+0xcc/0xe4 [ 82.685707][ T5829] el0t_64_sync+0x1a0/0x1a4 [ 82.686382][ T5829] irq event stamp: 79368 [ 82.686977][ T5829] hardirqs last enabled at (79367): [] __up_console_sem+0xb4/0x100 [ 82.688386][ T5829] hardirqs last disabled at (79368): [] el1_dbg+0x24/0x80 [ 82.689808][ T5829] softirqs last enabled at (79348): [] handle_softirqs+0xa4c/0xbf0 [ 82.691393][ T5829] softirqs last disabled at (79331): [] __irq_exit_rcu+0x240/0x440 [ 82.692887][ T5829] ---[ end trace b4216ca0bf747858 ]--- [ 82.695553][ T5829] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 82.697061][ T5829] BTRFS info (device loop0): forced readonly [ 82.836528][ T5851] loop0: detected capacity change from 0 to 32768 [ 82.883594][ T5851] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.48 (5851) [ 82.935967][ T5851] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.937472][ T5851] BTRFS info (device loop0): using free space tree [ 82.938514][ T5851] BTRFS info (device loop0): has skinny extents [ 83.042860][ T5851] BTRFS info (device loop0): enabling ssd optimizations [ 83.046595][ T5851] FAULT_INJECTION: forcing a failure. [ 83.046595][ T5851] name failslab, interval 1, probability 0, space 0, times 0 [ 83.048483][ T5851] CPU: 0 PID: 5851 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 83.049876][ T5851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.051478][ T5851] Call trace: [ 83.052034][ T5851] dump_backtrace+0x0/0x43c [ 83.052798][ T5851] show_stack+0x2c/0x3c [ 83.053490][ T5851] __dump_stack+0x30/0x40 [ 83.054189][ T5851] dump_stack_lvl+0xf8/0x160 [ 83.054969][ T5851] dump_stack+0x1c/0x5c [ 83.055687][ T5851] should_fail+0x3c0/0x51c [ 83.056438][ T5851] __should_failslab+0xbc/0x10c [ 83.057248][ T5851] should_failslab+0x10/0x28 [ 83.057964][ T5851] slab_pre_alloc_hook+0x64/0xec [ 83.058739][ T5851] kmem_cache_alloc_trace+0x98/0x3fc [ 83.059582][ T5851] btrfs_delete_delayed_dir_index+0x220/0x550 [ 83.060592][ T5851] __btrfs_unlink_inode+0x34c/0xb00 [ 83.061479][ T5851] btrfs_unlink+0x108/0x258 [ 83.062250][ T5851] vfs_unlink+0x2e0/0x4f4 [ 83.062996][ T5851] do_unlinkat+0x31c/0x600 [ 83.063725][ T5851] __arm64_sys_unlinkat+0xe0/0xfc [ 83.064533][ T5851] invoke_syscall+0x98/0x2b8 [ 83.065260][ T5851] el0_svc_common+0x138/0x258 [ 83.065947][ T5851] do_el0_svc+0x58/0x14c [ 83.066610][ T5851] el0_svc+0x78/0x1e0 [ 83.067216][ T5851] el0t_64_sync_handler+0xcc/0xe4 [ 83.067985][ T5851] el0t_64_sync+0x1a0/0x1a4 [ 83.090579][ T5851] ------------[ cut here ]------------ [ 83.091619][ T5851] WARNING: CPU: 0 PID: 5851 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 83.093301][ T5851] Modules linked in: [ 83.093966][ T5851] CPU: 0 PID: 5851 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 83.095357][ T5851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.097020][ T5851] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.098281][ T5851] pc : __btrfs_unlink_inode+0x908/0xb00 [ 83.099127][ T5851] lr : __btrfs_unlink_inode+0x908/0xb00 [ 83.099953][ T5851] sp : ffff8000232b7a60 [ 83.100579][ T5851] x29: ffff8000232b7b10 x28: ffff0000d77c4000 x27: ffff0000e31a9410 [ 83.101828][ T5851] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d18b7420 [ 83.103054][ T5851] x23: 1ffff00004656f54 x22: dfff800000000000 x21: ffff0000e94793a0 [ 83.104377][ T5851] x20: ffff0000def953c8 x19: 1fffe0001bdf2a79 x18: 0000000000000001 [ 83.105607][ T5851] x17: 0000000000000000 x16: ffff8000111bc6d8 x15: 00000000ffffffff [ 83.106814][ T5851] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 83.108092][ T5851] x11: 0000000000000000 x10: 0000000000000000 x9 : 60ee25cebd5d0c00 [ 83.109433][ T5851] x8 : 60ee25cebd5d0c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.110746][ T5851] x5 : ffff8000232b7358 x4 : ffff80001424f3e0 x3 : ffff800008504278 [ 83.112102][ T5851] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.113335][ T5851] Call trace: [ 83.113826][ T5851] __btrfs_unlink_inode+0x908/0xb00 [ 83.114636][ T5851] btrfs_unlink+0x108/0x258 [ 83.115351][ T5851] vfs_unlink+0x2e0/0x4f4 [ 83.116047][ T5851] do_unlinkat+0x31c/0x600 [ 83.116720][ T5851] __arm64_sys_unlinkat+0xe0/0xfc [ 83.117550][ T5851] invoke_syscall+0x98/0x2b8 [ 83.118308][ T5851] el0_svc_common+0x138/0x258 [ 83.119075][ T5851] do_el0_svc+0x58/0x14c [ 83.119774][ T5851] el0_svc+0x78/0x1e0 [ 83.120427][ T5851] el0t_64_sync_handler+0xcc/0xe4 [ 83.121282][ T5851] el0t_64_sync+0x1a0/0x1a4 [ 83.121986][ T5851] irq event stamp: 79312 [ 83.122643][ T5851] hardirqs last enabled at (79311): [] __up_console_sem+0xb4/0x100 [ 83.124083][ T5851] hardirqs last disabled at (79312): [] el1_dbg+0x24/0x80 [ 83.125478][ T5851] softirqs last enabled at (79292): [] handle_softirqs+0xa4c/0xbf0 [ 83.127068][ T5851] softirqs last disabled at (79155): [] __irq_exit_rcu+0x240/0x440 [ 83.128603][ T5851] ---[ end trace b4216ca0bf747859 ]--- [ 83.167707][ T5851] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 83.169282][ T5851] BTRFS info (device loop0): forced readonly [ 83.370903][ T5875] loop0: detected capacity change from 0 to 32768 [ 83.374901][ T5875] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.49 (5875) [ 83.378163][ T5875] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.379622][ T5875] BTRFS info (device loop0): using free space tree [ 83.380622][ T5875] BTRFS info (device loop0): has skinny extents [ 83.393274][ T5875] BTRFS info (device loop0): enabling ssd optimizations [ 83.396961][ T5875] FAULT_INJECTION: forcing a failure. [ 83.396961][ T5875] name failslab, interval 1, probability 0, space 0, times 0 [ 83.398882][ T5875] CPU: 0 PID: 5875 Comm: syz.0.49 Tainted: G W syzkaller #0 [ 83.400192][ T5875] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.401708][ T5875] Call trace: [ 83.402187][ T5875] dump_backtrace+0x0/0x43c [ 83.402871][ T5875] show_stack+0x2c/0x3c [ 83.403502][ T5875] __dump_stack+0x30/0x40 [ 83.404167][ T5875] dump_stack_lvl+0xf8/0x160 [ 83.404908][ T5875] dump_stack+0x1c/0x5c [ 83.405569][ T5875] should_fail+0x3c0/0x51c [ 83.406315][ T5875] __should_failslab+0xbc/0x10c [ 83.407075][ T5875] should_failslab+0x10/0x28 [ 83.407815][ T5875] slab_pre_alloc_hook+0x64/0xec [ 83.408639][ T5875] kmem_cache_alloc_trace+0x98/0x3fc [ 83.409449][ T5875] btrfs_delete_delayed_dir_index+0x220/0x550 [ 83.410386][ T5875] __btrfs_unlink_inode+0x34c/0xb00 [ 83.411160][ T5875] btrfs_unlink+0x108/0x258 [ 83.411864][ T5875] vfs_unlink+0x2e0/0x4f4 [ 83.412514][ T5875] do_unlinkat+0x31c/0x600 [ 83.413200][ T5875] __arm64_sys_unlinkat+0xe0/0xfc [ 83.414026][ T5875] invoke_syscall+0x98/0x2b8 [ 83.414793][ T5875] el0_svc_common+0x138/0x258 [ 83.415545][ T5875] do_el0_svc+0x58/0x14c [ 83.416237][ T5875] el0_svc+0x78/0x1e0 [ 83.416847][ T5875] el0t_64_sync_handler+0xcc/0xe4 [ 83.417626][ T5875] el0t_64_sync+0x1a0/0x1a4 [ 83.420584][ T5875] ------------[ cut here ]------------ [ 83.421538][ T5875] WARNING: CPU: 1 PID: 5875 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 83.422910][ T5875] Modules linked in: [ 83.423498][ T5875] CPU: 1 PID: 5875 Comm: syz.0.49 Tainted: G W syzkaller #0 [ 83.424947][ T5875] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 83.426627][ T5875] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.427839][ T5875] pc : __btrfs_unlink_inode+0x908/0xb00 [ 83.428761][ T5875] lr : __btrfs_unlink_inode+0x908/0xb00 [ 83.429665][ T5875] sp : ffff800023427a60 [ 83.430355][ T5875] x29: ffff800023427b10 x28: ffff0000daaf8000 x27: ffff0000e31a9010 [ 83.431607][ T5875] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c9346580 [ 83.432924][ T5875] x23: 1ffff00004684f54 x22: dfff800000000000 x21: ffff0000e947e220 [ 83.434129][ T5875] x20: ffff0000def95268 x19: 1fffe0001bdf2a4d x18: 0000000000000001 [ 83.435317][ T5875] x17: 0000000000000000 x16: ffff800008302038 x15: 00000000ffffffff [ 83.436529][ T5875] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 83.437687][ T5875] x11: 0000000000000000 x10: 0000000000000000 x9 : b32a267decdb6300 [ 83.439023][ T5875] x8 : b32a267decdb6300 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.440397][ T5875] x5 : ffff800023427358 x4 : ffff80001424f3e0 x3 : ffff800008302148 [ 83.441722][ T5875] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.443084][ T5875] Call trace: [ 83.443614][ T5875] __btrfs_unlink_inode+0x908/0xb00 [ 83.444443][ T5875] btrfs_unlink+0x108/0x258 [ 83.445176][ T5875] vfs_unlink+0x2e0/0x4f4 [ 83.445895][ T5875] do_unlinkat+0x31c/0x600 [ 83.446626][ T5875] __arm64_sys_unlinkat+0xe0/0xfc [ 83.447466][ T5875] invoke_syscall+0x98/0x2b8 [ 83.448202][ T5875] el0_svc_common+0x138/0x258 [ 83.448913][ T5875] do_el0_svc+0x58/0x14c [ 83.449592][ T5875] el0_svc+0x78/0x1e0 [ 83.450219][ T5875] el0t_64_sync_handler+0xcc/0xe4 [ 83.451039][ T5875] el0t_64_sync+0x1a0/0x1a4 [ 83.451801][ T5875] irq event stamp: 79066 [ 83.452468][ T5875] hardirqs last enabled at (79065): [] __up_console_sem+0xb4/0x100 [ 83.453973][ T5875] hardirqs last disabled at (79066): [] el1_dbg+0x24/0x80 [ 83.455473][ T5875] softirqs last enabled at (79046): [] handle_softirqs+0xa4c/0xbf0 [ 83.457106][ T5875] softirqs last disabled at (79019): [] __irq_exit_rcu+0x240/0x440 [ 83.458617][ T5875] ---[ end trace b4216ca0bf74785a ]--- [ 83.461839][ T5875] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 83.463418][ T5875] BTRFS info (device loop0): forced readonly