Warning: Permanently added '10.128.1.130' (ED25519) to the list of known hosts. 1970/01/01 00:00:59 ignoring optional flag "type"="gce" 1970/01/01 00:01:00 parsed 1 programs [ 61.440640][ T4391] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 62.222046][ T4486] chnl_net:caif_netlink_parms(): no params data found [ 62.239312][ T4486] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.241203][ T4486] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.242623][ T4486] device bridge_slave_0 entered promiscuous mode [ 62.244497][ T4486] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.245524][ T4486] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.246924][ T4486] device bridge_slave_1 entered promiscuous mode [ 62.256227][ T4486] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.258747][ T4486] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.266452][ T4486] team0: Port device team_slave_0 added [ 62.268068][ T4486] team0: Port device team_slave_1 added [ 62.274223][ T4486] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 62.275337][ T4486] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 62.279086][ T4486] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 62.281585][ T4486] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 62.282431][ T4486] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 62.286001][ T4486] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 62.340501][ T4486] device hsr_slave_0 entered promiscuous mode [ 62.379743][ T4486] device hsr_slave_1 entered promiscuous mode [ 62.975321][ T4486] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 63.000693][ T4486] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 63.032485][ T4486] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.061563][ T4486] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.162901][ T4486] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.164003][ T4486] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.165162][ T4486] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.166183][ T4486] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.190620][ T4486] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.194352][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.196092][ T1119] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.200590][ T1119] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.202364][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 63.214605][ T4486] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.217021][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.218612][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.220440][ T1119] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.221479][ T1119] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.224773][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.226378][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.227737][ T347] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.228660][ T347] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.246561][ T4486] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 63.248173][ T4486] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.257713][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.259372][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.261497][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.263431][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.265321][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.268153][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.270820][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.272383][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.273925][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.275385][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.279091][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.281794][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.344845][ T4486] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.349853][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.351182][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.362351][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 63.363911][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 63.383674][ T4486] device veth0_vlan entered promiscuous mode [ 63.384902][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 63.386568][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 63.388474][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 63.391132][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 63.395135][ T4486] device veth1_vlan entered promiscuous mode [ 63.402785][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 63.404183][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 63.405789][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 63.407300][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 63.411861][ T4486] device veth0_macvtap entered promiscuous mode [ 63.414410][ T4486] device veth1_macvtap entered promiscuous mode [ 63.422679][ T4486] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.423802][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 63.425135][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 63.426462][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 63.427874][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 63.432514][ T4486] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.433672][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 63.435038][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 63.437673][ T4486] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.438929][ T4486] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.441469][ T4486] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.442760][ T4486] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.659295][ T1119] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.659299][ T347] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.659328][ T347] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.660951][ T1119] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.662605][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 63.665468][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 64.033886][ T447] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:04 executed programs: 0 [ 64.578631][ T4767] chnl_net:caif_netlink_parms(): no params data found [ 64.598833][ T4767] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.600144][ T4767] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.601528][ T4767] device bridge_slave_0 entered promiscuous mode [ 64.603470][ T4767] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.604544][ T4767] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.605860][ T4767] device bridge_slave_1 entered promiscuous mode [ 64.615854][ T4767] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.619854][ T4767] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.628194][ T4767] team0: Port device team_slave_0 added [ 64.630386][ T4767] team0: Port device team_slave_1 added [ 64.636883][ T4767] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.637950][ T4767] 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. [ 64.642496][ T4767] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.645378][ T4767] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.646495][ T4767] 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. [ 64.650575][ T4767] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.692079][ T4767] device hsr_slave_0 entered promiscuous mode [ 64.749894][ T4767] device hsr_slave_1 entered promiscuous mode [ 64.789678][ T4767] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 64.790913][ T4767] Cannot create hsr debugfs directory [ 66.442332][ T447] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.579595][ T4089] Bluetooth: hci0: command 0x0409 tx timeout [ 68.659678][ T4089] Bluetooth: hci0: command 0x041b tx timeout [ 68.902810][ T447] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.943144][ T447] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.621221][ T1979] cfg80211: failed to load regulatory.db [ 69.622988][ T2064] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.624042][ T2064] ieee802154 phy1 wpan1: encryption failed: -22 [ 69.812327][ T4767] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 69.860812][ T4767] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 69.890712][ T4767] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 69.960796][ T4767] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 70.032291][ T4767] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.036098][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.037689][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.040968][ T4767] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.043574][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.045136][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.046539][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.047675][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.049004][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.052914][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.054428][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.055746][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.056812][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.059210][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.062536][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.065364][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.067440][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.069079][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.072998][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.074639][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.091324][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.092877][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.094533][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 70.096045][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.098457][ T4767] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.136962][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.138378][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.142302][ T4767] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.148129][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 70.149877][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.156908][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 70.158351][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.160381][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.161831][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.164650][ T4767] device veth0_vlan entered promiscuous mode [ 70.167868][ T4767] device veth1_vlan entered promiscuous mode [ 70.174604][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.176140][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.177582][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 70.179075][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 70.182062][ T4767] device veth0_macvtap entered promiscuous mode [ 70.184410][ T4767] device veth1_macvtap entered promiscuous mode [ 70.189060][ T4767] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 70.191269][ T4767] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 70.193309][ T4767] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 70.194592][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 70.196059][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 70.197462][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 70.198882][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 70.201274][ T4767] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 70.202942][ T4767] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 70.204804][ T4767] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 70.205872][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 70.207364][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.209880][ T4767] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.211237][ T4767] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.212452][ T4767] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.213728][ T4767] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.232400][ T347] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.236924][ T347] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.238915][ T1119] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 70.241045][ T347] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.242353][ T347] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.243840][ T347] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:10 executed programs: 2 [ 70.355776][ T4915] loop0: detected capacity change from 0 to 32768 [ 70.395029][ T4915] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.15 (4915) [ 70.401327][ T4915] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 70.403036][ T4915] BTRFS info (device loop0): using free space tree [ 70.404064][ T4915] BTRFS info (device loop0): has skinny extents [ 70.413302][ T4915] BTRFS info (device loop0): enabling ssd optimizations [ 70.422506][ T4915] FAULT_INJECTION: forcing a failure. [ 70.422506][ T4915] name failslab, interval 1, probability 0, space 0, times 1 [ 70.424353][ T4915] CPU: 0 PID: 4915 Comm: syz.0.15 Not tainted syzkaller #0 [ 70.425316][ T4915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 70.426818][ T4915] Call trace: [ 70.427319][ T4915] dump_backtrace+0x0/0x43c [ 70.427944][ T4915] show_stack+0x2c/0x3c [ 70.428551][ T4915] __dump_stack+0x30/0x40 [ 70.429215][ T4915] dump_stack_lvl+0xf8/0x160 [ 70.429911][ T4915] dump_stack+0x1c/0x5c [ 70.430571][ T4915] should_fail+0x3c0/0x51c [ 70.431234][ T4915] __should_failslab+0xbc/0x10c [ 70.431948][ T4915] should_failslab+0x10/0x28 [ 70.432660][ T4915] slab_pre_alloc_hook+0x64/0xec [ 70.433392][ T4915] kmem_cache_alloc_trace+0x98/0x3fc [ 70.434175][ T4915] btrfs_delete_delayed_dir_index+0x220/0x550 [ 70.435070][ T4915] __btrfs_unlink_inode+0x34c/0xb00 [ 70.435883][ T4915] btrfs_unlink+0x108/0x258 [ 70.436521][ T4915] vfs_unlink+0x2e0/0x4f4 [ 70.437135][ T4915] do_unlinkat+0x31c/0x600 [ 70.437771][ T4915] __arm64_sys_unlinkat+0xe0/0xfc [ 70.438459][ T4915] invoke_syscall+0x98/0x2b8 [ 70.439187][ T4915] el0_svc_common+0x138/0x258 [ 70.439876][ T4915] do_el0_svc+0x58/0x14c [ 70.440522][ T4915] el0_svc+0x78/0x1e0 [ 70.441124][ T4915] el0t_64_sync_handler+0xcc/0xe4 [ 70.441817][ T4915] el0t_64_sync+0x1a0/0x1a4 [ 70.443856][ T4915] ------------[ cut here ]------------ [ 70.444838][ T4915] WARNING: CPU: 0 PID: 4915 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 70.446292][ T4915] Modules linked in: [ 70.446895][ T4915] CPU: 0 PID: 4915 Comm: syz.0.15 Not tainted syzkaller #0 [ 70.447964][ T4915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 70.449456][ T4915] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 70.450641][ T4915] pc : __btrfs_unlink_inode+0x908/0xb00 [ 70.451472][ T4915] lr : __btrfs_unlink_inode+0x908/0xb00 [ 70.452329][ T4915] sp : ffff80001fdf7a60 [ 70.452919][ T4915] x29: ffff80001fdf7b10 x28: ffff0000d67fe000 x27: ffff0000e3378010 [ 70.454059][ T4915] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ca738f20 [ 70.455267][ T4915] x23: 1ffff00003fbef54 x22: dfff800000000000 x21: ffff0000e79a13a0 [ 70.456488][ T4915] x20: ffff0000dd2e6108 x19: 1fffe0001ba5cc21 x18: 0000000000000001 [ 70.457653][ T4915] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 70.458845][ T4915] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 70.460021][ T4915] x11: 0000000000000000 x10: 0000000000000000 x9 : 0754eef8013f9b00 [ 70.461289][ T4915] x8 : 0754eef8013f9b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 70.462397][ T4915] x5 : ffff80001fdf7358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 70.463589][ T4915] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 70.464781][ T4915] Call trace: [ 70.465294][ T4915] __btrfs_unlink_inode+0x908/0xb00 [ 70.466044][ T4915] btrfs_unlink+0x108/0x258 [ 70.466639][ T4915] vfs_unlink+0x2e0/0x4f4 [ 70.467283][ T4915] do_unlinkat+0x31c/0x600 [ 70.467900][ T4915] __arm64_sys_unlinkat+0xe0/0xfc [ 70.468594][ T4915] invoke_syscall+0x98/0x2b8 [ 70.469225][ T4915] el0_svc_common+0x138/0x258 [ 70.469940][ T4915] do_el0_svc+0x58/0x14c [ 70.470618][ T4915] el0_svc+0x78/0x1e0 [ 70.471172][ T4915] el0t_64_sync_handler+0xcc/0xe4 [ 70.471895][ T4915] el0t_64_sync+0x1a0/0x1a4 [ 70.472503][ T4915] irq event stamp: 80580 [ 70.473090][ T4915] hardirqs last enabled at (80579): [] __up_console_sem+0xb4/0x100 [ 70.474338][ T4915] hardirqs last disabled at (80580): [] el1_dbg+0x24/0x80 [ 70.475558][ T4915] softirqs last enabled at (80560): [] handle_softirqs+0xa4c/0xbf0 [ 70.476871][ T4915] softirqs last disabled at (80487): [] __irq_exit_rcu+0x240/0x440 [ 70.478223][ T4915] ---[ end trace 1815704f9fa119cd ]--- [ 70.482102][ T4915] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 70.483664][ T4915] BTRFS info (device loop0): forced readonly [ 70.628966][ T4938] loop0: detected capacity change from 0 to 32768 [ 70.704613][ T4938] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.16 (4938) [ 70.708898][ T4938] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 70.710413][ T4938] BTRFS info (device loop0): using free space tree [ 70.711341][ T4938] BTRFS info (device loop0): has skinny extents [ 70.718465][ T4938] BTRFS info (device loop0): enabling ssd optimizations [ 70.724048][ T4938] FAULT_INJECTION: forcing a failure. [ 70.724048][ T4938] name failslab, interval 1, probability 0, space 0, times 0 [ 70.726057][ T4938] CPU: 1 PID: 4938 Comm: syz.0.16 Tainted: G W syzkaller #0 [ 70.727293][ T4938] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 70.728712][ T4938] Call trace: [ 70.729203][ T4938] dump_backtrace+0x0/0x43c [ 70.729847][ T4938] show_stack+0x2c/0x3c [ 70.730436][ T4938] __dump_stack+0x30/0x40 [ 70.731096][ T4938] dump_stack_lvl+0xf8/0x160 [ 70.731778][ T4938] dump_stack+0x1c/0x5c [ 70.732424][ T4938] should_fail+0x3c0/0x51c [ 70.733053][ T4938] __should_failslab+0xbc/0x10c [ 70.733804][ T4938] should_failslab+0x10/0x28 [ 70.734503][ T4938] slab_pre_alloc_hook+0x64/0xec [ 70.735246][ T4938] kmem_cache_alloc+0x94/0x3e4 [ 70.735947][ T4938] btrfs_alloc_path+0x5c/0x68 [ 70.736660][ T4938] __btrfs_unlink_inode+0x1d8/0xb00 [ 70.737477][ T4938] btrfs_unlink+0x108/0x258 [ 70.738196][ T4938] vfs_unlink+0x2e0/0x4f4 [ 70.738840][ T4938] do_unlinkat+0x31c/0x600 [ 70.739510][ T4938] __arm64_sys_unlinkat+0xe0/0xfc [ 70.740246][ T4938] invoke_syscall+0x98/0x2b8 [ 70.740907][ T4938] el0_svc_common+0x138/0x258 [ 70.741577][ T4938] do_el0_svc+0x58/0x14c [ 70.742206][ T4938] el0_svc+0x78/0x1e0 [ 70.742772][ T4938] el0t_64_sync_handler+0xcc/0xe4 [ 70.743535][ T4938] el0t_64_sync+0x1a0/0x1a4 [ 70.744403][ T4068] Bluetooth: hci0: command 0x040f tx timeout [ 70.896970][ T4960] loop0: detected capacity change from 0 to 32768 [ 70.920843][ T4960] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.17 (4960) [ 70.961299][ T4960] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 70.962657][ T4960] BTRFS info (device loop0): using free space tree [ 70.963651][ T4960] BTRFS info (device loop0): has skinny extents [ 70.973723][ T4960] BTRFS info (device loop0): enabling ssd optimizations [ 70.978008][ T4960] FAULT_INJECTION: forcing a failure. [ 70.978008][ T4960] name failslab, interval 1, probability 0, space 0, times 0 [ 70.980587][ T4960] CPU: 1 PID: 4960 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 70.981885][ T4960] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 70.983315][ T4960] Call trace: [ 70.983821][ T4960] dump_backtrace+0x0/0x43c [ 70.984532][ T4960] show_stack+0x2c/0x3c [ 70.985133][ T4960] __dump_stack+0x30/0x40 [ 70.985741][ T4960] dump_stack_lvl+0xf8/0x160 [ 70.986428][ T4960] dump_stack+0x1c/0x5c [ 70.987012][ T4960] should_fail+0x3c0/0x51c [ 70.987705][ T4960] __should_failslab+0xbc/0x10c [ 70.988435][ T4960] should_failslab+0x10/0x28 [ 70.989037][ T4960] slab_pre_alloc_hook+0x64/0xec [ 70.989796][ T4960] kmem_cache_alloc_trace+0x98/0x3fc [ 70.990576][ T4960] btrfs_delete_delayed_dir_index+0x220/0x550 [ 70.991496][ T4960] __btrfs_unlink_inode+0x34c/0xb00 [ 70.992279][ T4960] btrfs_unlink+0x108/0x258 [ 70.992975][ T4960] vfs_unlink+0x2e0/0x4f4 [ 70.993654][ T4960] do_unlinkat+0x31c/0x600 [ 70.994248][ T4960] __arm64_sys_unlinkat+0xe0/0xfc [ 70.995028][ T4960] invoke_syscall+0x98/0x2b8 [ 70.995685][ T4960] el0_svc_common+0x138/0x258 [ 70.996374][ T4960] do_el0_svc+0x58/0x14c [ 70.996971][ T4960] el0_svc+0x78/0x1e0 [ 70.997563][ T4960] el0t_64_sync_handler+0xcc/0xe4 [ 70.998368][ T4960] el0t_64_sync+0x1a0/0x1a4 [ 70.999629][ T4960] ------------[ cut here ]------------ [ 71.000615][ T4960] WARNING: CPU: 1 PID: 4960 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 71.001891][ T4960] Modules linked in: [ 71.002432][ T4960] CPU: 1 PID: 4960 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 71.003631][ T4960] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.004945][ T4960] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 71.006015][ T4960] pc : __btrfs_unlink_inode+0x908/0xb00 [ 71.006805][ T4960] lr : __btrfs_unlink_inode+0x908/0xb00 [ 71.007578][ T4960] sp : ffff80001ff67a60 [ 71.008200][ T4960] x29: ffff80001ff67b10 x28: ffff0000d1228000 x27: ffff0000e7a28410 [ 71.009312][ T4960] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d0bf92c0 [ 71.010505][ T4960] x23: 1ffff00003fecf54 x22: dfff800000000000 x21: ffff0000e79ebae0 [ 71.011710][ T4960] x20: ffff0000de8bf268 x19: 1fffe0001bd17e4d x18: 0000000000000001 [ 71.012889][ T4960] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 71.014035][ T4960] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 71.015096][ T4960] x11: 0000000000000000 x10: 0000000000000000 x9 : b6068140f608c700 [ 71.016243][ T4960] x8 : b6068140f608c700 x7 : 0000000000000001 x6 : 0000000000000001 [ 71.017429][ T4960] x5 : ffff80001ff67358 x4 : ffff80001426f5a0 x3 : ffff800008302274 [ 71.018650][ T4960] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 71.019769][ T4960] Call trace: [ 71.020216][ T4960] __btrfs_unlink_inode+0x908/0xb00 [ 71.020994][ T4960] btrfs_unlink+0x108/0x258 [ 71.021671][ T4960] vfs_unlink+0x2e0/0x4f4 [ 71.022315][ T4960] do_unlinkat+0x31c/0x600 [ 71.022948][ T4960] __arm64_sys_unlinkat+0xe0/0xfc [ 71.023709][ T4960] invoke_syscall+0x98/0x2b8 [ 71.024382][ T4960] el0_svc_common+0x138/0x258 [ 71.024999][ T4960] do_el0_svc+0x58/0x14c [ 71.025659][ T4960] el0_svc+0x78/0x1e0 [ 71.026267][ T4960] el0t_64_sync_handler+0xcc/0xe4 [ 71.026999][ T4960] el0t_64_sync+0x1a0/0x1a4 [ 71.027648][ T4960] irq event stamp: 79674 [ 71.028243][ T4960] hardirqs last enabled at (79673): [] __up_console_sem+0xb4/0x100 [ 71.029552][ T4960] hardirqs last disabled at (79674): [] el1_dbg+0x24/0x80 [ 71.030769][ T4960] softirqs last enabled at (79654): [] handle_softirqs+0xa4c/0xbf0 [ 71.032091][ T4960] softirqs last disabled at (79601): [] __irq_exit_rcu+0x240/0x440 [ 71.033414][ T4960] ---[ end trace 1815704f9fa119ce ]--- [ 71.037192][ T4960] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 71.038606][ T4960] BTRFS info (device loop0): forced readonly [ 71.186420][ T4992] loop0: detected capacity change from 0 to 32768 [ 71.195491][ T4992] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.18 (4992) [ 71.198837][ T4992] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 71.200329][ T4992] BTRFS info (device loop0): using free space tree [ 71.201245][ T4992] BTRFS info (device loop0): has skinny extents [ 71.215385][ T4992] BTRFS info (device loop0): enabling ssd optimizations [ 71.219419][ T4992] FAULT_INJECTION: forcing a failure. [ 71.219419][ T4992] name failslab, interval 1, probability 0, space 0, times 0 [ 71.222972][ T4992] CPU: 0 PID: 4992 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 71.224323][ T4992] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.225785][ T4992] Call trace: [ 71.226282][ T4992] dump_backtrace+0x0/0x43c [ 71.226945][ T4992] show_stack+0x2c/0x3c [ 71.227542][ T4992] __dump_stack+0x30/0x40 [ 71.228248][ T4992] dump_stack_lvl+0xf8/0x160 [ 71.228940][ T4992] dump_stack+0x1c/0x5c [ 71.229564][ T4992] should_fail+0x3c0/0x51c [ 71.230272][ T4992] __should_failslab+0xbc/0x10c [ 71.231013][ T4992] should_failslab+0x10/0x28 [ 71.231711][ T4992] slab_pre_alloc_hook+0x64/0xec [ 71.232437][ T4992] kmem_cache_alloc_trace+0x98/0x3fc [ 71.233201][ T4992] btrfs_delete_delayed_dir_index+0x220/0x550 [ 71.234019][ T4992] __btrfs_unlink_inode+0x34c/0xb00 [ 71.234762][ T4992] btrfs_unlink+0x108/0x258 [ 71.235402][ T4992] vfs_unlink+0x2e0/0x4f4 [ 71.236020][ T4992] do_unlinkat+0x31c/0x600 [ 71.236693][ T4992] __arm64_sys_unlinkat+0xe0/0xfc [ 71.237444][ T4992] invoke_syscall+0x98/0x2b8 [ 71.238070][ T4992] el0_svc_common+0x138/0x258 [ 71.238692][ T4992] do_el0_svc+0x58/0x14c [ 71.239318][ T4992] el0_svc+0x78/0x1e0 [ 71.239863][ T4992] el0t_64_sync_handler+0xcc/0xe4 [ 71.240616][ T4992] el0t_64_sync+0x1a0/0x1a4 [ 71.243254][ T4992] ------------[ cut here ]------------ [ 71.244186][ T4992] WARNING: CPU: 0 PID: 4992 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 71.245492][ T4992] Modules linked in: [ 71.246043][ T4992] CPU: 0 PID: 4992 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 71.247218][ T4992] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.248666][ T4992] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 71.249749][ T4992] pc : __btrfs_unlink_inode+0x908/0xb00 [ 71.250513][ T4992] lr : __btrfs_unlink_inode+0x908/0xb00 [ 71.251286][ T4992] sp : ffff8000200f7a60 [ 71.251894][ T4992] x29: ffff8000200f7b10 x28: ffff0000d047c000 x27: ffff0000e3378410 [ 71.252984][ T4992] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d7bda9a0 [ 71.254141][ T4992] x23: 1ffff0000401ef54 x22: dfff800000000000 x21: ffff0000e79a3ae0 [ 71.255314][ T4992] x20: ffff0000dd2e63c8 x19: 1fffe0001ba5cc79 x18: 0000000000000001 [ 71.256457][ T4992] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 71.257579][ T4992] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 71.258723][ T4992] x11: 0000000000000000 x10: 0000000000000000 x9 : 8db4c0e468d1a500 [ 71.259882][ T4992] x8 : 8db4c0e468d1a500 x7 : 0000000000000001 x6 : 0000000000000001 [ 71.261030][ T4992] x5 : ffff8000200f7358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 71.262253][ T4992] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 71.263442][ T4992] Call trace: [ 71.263921][ T4992] __btrfs_unlink_inode+0x908/0xb00 [ 71.264665][ T4992] btrfs_unlink+0x108/0x258 [ 71.265376][ T4992] vfs_unlink+0x2e0/0x4f4 [ 71.266044][ T4992] do_unlinkat+0x31c/0x600 [ 71.266690][ T4992] __arm64_sys_unlinkat+0xe0/0xfc [ 71.267397][ T4992] invoke_syscall+0x98/0x2b8 [ 71.268033][ T4992] el0_svc_common+0x138/0x258 [ 71.268689][ T4992] do_el0_svc+0x58/0x14c [ 71.269311][ T4992] el0_svc+0x78/0x1e0 [ 71.269860][ T4992] el0t_64_sync_handler+0xcc/0xe4 [ 71.270570][ T4992] el0t_64_sync+0x1a0/0x1a4 [ 71.271187][ T4992] irq event stamp: 79030 [ 71.271769][ T4992] hardirqs last enabled at (79029): [] __up_console_sem+0xb4/0x100 [ 71.273109][ T4992] hardirqs last disabled at (79030): [] el1_dbg+0x24/0x80 [ 71.274301][ T4992] softirqs last enabled at (79010): [] handle_softirqs+0xa4c/0xbf0 [ 71.275538][ T4992] softirqs last disabled at (78961): [] __irq_exit_rcu+0x240/0x440 [ 71.277042][ T4992] ---[ end trace 1815704f9fa119cf ]--- [ 71.278780][ T4992] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 71.280454][ T4992] BTRFS info (device loop0): forced readonly [ 71.416893][ T5015] loop0: detected capacity change from 0 to 32768 [ 71.492506][ T5015] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.19 (5015) [ 71.496166][ T5015] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 71.497491][ T5015] BTRFS info (device loop0): using free space tree [ 71.498478][ T5015] BTRFS info (device loop0): has skinny extents [ 71.506919][ T5015] BTRFS info (device loop0): enabling ssd optimizations [ 71.511790][ T5015] FAULT_INJECTION: forcing a failure. [ 71.511790][ T5015] name failslab, interval 1, probability 0, space 0, times 0 [ 71.513823][ T5015] CPU: 1 PID: 5015 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 71.515163][ T5015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.516666][ T5015] Call trace: [ 71.517161][ T5015] dump_backtrace+0x0/0x43c [ 71.517815][ T5015] show_stack+0x2c/0x3c [ 71.518428][ T5015] __dump_stack+0x30/0x40 [ 71.519051][ T5015] dump_stack_lvl+0xf8/0x160 [ 71.519739][ T5015] dump_stack+0x1c/0x5c [ 71.520368][ T5015] should_fail+0x3c0/0x51c [ 71.521003][ T5015] __should_failslab+0xbc/0x10c [ 71.521718][ T5015] should_failslab+0x10/0x28 [ 71.522420][ T5015] slab_pre_alloc_hook+0x64/0xec [ 71.523149][ T5015] kmem_cache_alloc_trace+0x98/0x3fc [ 71.523915][ T5015] btrfs_delete_delayed_dir_index+0x220/0x550 [ 71.524845][ T5015] __btrfs_unlink_inode+0x34c/0xb00 [ 71.525589][ T5015] btrfs_unlink+0x108/0x258 [ 71.526230][ T5015] vfs_unlink+0x2e0/0x4f4 [ 71.526846][ T5015] do_unlinkat+0x31c/0x600 [ 71.527578][ T5015] __arm64_sys_unlinkat+0xe0/0xfc [ 71.528325][ T5015] invoke_syscall+0x98/0x2b8 [ 71.528974][ T5015] el0_svc_common+0x138/0x258 [ 71.529653][ T5015] do_el0_svc+0x58/0x14c [ 71.530221][ T5015] el0_svc+0x78/0x1e0 [ 71.530799][ T5015] el0t_64_sync_handler+0xcc/0xe4 [ 71.531512][ T5015] el0t_64_sync+0x1a0/0x1a4 [ 71.533327][ T5015] ------------[ cut here ]------------ [ 71.534215][ T5015] WARNING: CPU: 1 PID: 5015 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 71.535558][ T5015] Modules linked in: [ 71.536162][ T5015] CPU: 1 PID: 5015 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 71.537394][ T5015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.538758][ T5015] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 71.539941][ T5015] pc : __btrfs_unlink_inode+0x908/0xb00 [ 71.540761][ T5015] lr : __btrfs_unlink_inode+0x908/0xb00 [ 71.541638][ T5015] sp : ffff8000203e7a60 [ 71.542258][ T5015] x29: ffff8000203e7b10 x28: ffff0000db528000 x27: ffff0000e7a28810 [ 71.543416][ T5015] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000dc1360b0 [ 71.544568][ T5015] x23: 1ffff0000407cf54 x22: dfff800000000000 x21: ffff0000e79ece80 [ 71.545685][ T5015] x20: ffff0000de8bf3c8 x19: 1fffe0001bd17e79 x18: 0000000000000001 [ 71.546800][ T5015] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 71.547956][ T5015] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 71.549081][ T5015] x11: 0000000000000000 x10: 0000000000000000 x9 : fce7b0c4920cdd00 [ 71.550246][ T5015] x8 : fce7b0c4920cdd00 x7 : 0000000000000001 x6 : 0000000000000001 [ 71.551369][ T5015] x5 : ffff8000203e7358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 71.552492][ T5015] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 71.553645][ T5015] Call trace: [ 71.554109][ T5015] __btrfs_unlink_inode+0x908/0xb00 [ 71.554903][ T5015] btrfs_unlink+0x108/0x258 [ 71.555568][ T5015] vfs_unlink+0x2e0/0x4f4 [ 71.556213][ T5015] do_unlinkat+0x31c/0x600 [ 71.556859][ T5015] __arm64_sys_unlinkat+0xe0/0xfc [ 71.557563][ T5015] invoke_syscall+0x98/0x2b8 [ 71.558235][ T5015] el0_svc_common+0x138/0x258 [ 71.558921][ T5015] do_el0_svc+0x58/0x14c [ 71.559523][ T5015] el0_svc+0x78/0x1e0 [ 71.560073][ T5015] el0t_64_sync_handler+0xcc/0xe4 [ 71.560801][ T5015] el0t_64_sync+0x1a0/0x1a4 [ 71.561449][ T5015] irq event stamp: 79824 [ 71.562015][ T5015] hardirqs last enabled at (79823): [] __up_console_sem+0xb4/0x100 [ 71.563375][ T5015] hardirqs last disabled at (79824): [] el1_dbg+0x24/0x80 [ 71.564634][ T5015] softirqs last enabled at (79512): [] handle_softirqs+0xa4c/0xbf0 [ 71.566050][ T5015] softirqs last disabled at (79499): [] __irq_exit_rcu+0x240/0x440 [ 71.567418][ T5015] ---[ end trace 1815704f9fa119d0 ]--- [ 71.569744][ T5015] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 71.571557][ T5015] BTRFS info (device loop0): forced readonly [ 71.721846][ T5038] loop0: detected capacity change from 0 to 32768 [ 71.729477][ T5038] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.20 (5038) [ 71.734388][ T5038] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 71.735660][ T5038] BTRFS info (device loop0): using free space tree [ 71.736591][ T5038] BTRFS info (device loop0): has skinny extents [ 71.744568][ T5038] BTRFS info (device loop0): enabling ssd optimizations [ 71.748431][ T5038] FAULT_INJECTION: forcing a failure. [ 71.748431][ T5038] name failslab, interval 1, probability 0, space 0, times 0 [ 71.750636][ T5038] CPU: 1 PID: 5038 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 71.751893][ T5038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.753367][ T5038] Call trace: [ 71.753874][ T5038] dump_backtrace+0x0/0x43c [ 71.754587][ T5038] show_stack+0x2c/0x3c [ 71.755238][ T5038] __dump_stack+0x30/0x40 [ 71.755947][ T5038] dump_stack_lvl+0xf8/0x160 [ 71.756661][ T5038] dump_stack+0x1c/0x5c [ 71.757286][ T5038] should_fail+0x3c0/0x51c [ 71.757939][ T5038] __should_failslab+0xbc/0x10c [ 71.758651][ T5038] should_failslab+0x10/0x28 [ 71.759316][ T5038] slab_pre_alloc_hook+0x64/0xec [ 71.760065][ T5038] kmem_cache_alloc_trace+0x98/0x3fc [ 71.760850][ T5038] btrfs_delete_delayed_dir_index+0x220/0x550 [ 71.761763][ T5038] __btrfs_unlink_inode+0x34c/0xb00 [ 71.762555][ T5038] btrfs_unlink+0x108/0x258 [ 71.763205][ T5038] vfs_unlink+0x2e0/0x4f4 [ 71.763843][ T5038] do_unlinkat+0x31c/0x600 [ 71.764463][ T5038] __arm64_sys_unlinkat+0xe0/0xfc [ 71.765190][ T5038] invoke_syscall+0x98/0x2b8 [ 71.765841][ T5038] el0_svc_common+0x138/0x258 [ 71.766499][ T5038] do_el0_svc+0x58/0x14c [ 71.767180][ T5038] el0_svc+0x78/0x1e0 [ 71.767777][ T5038] el0t_64_sync_handler+0xcc/0xe4 [ 71.768475][ T5038] el0t_64_sync+0x1a0/0x1a4 [ 71.770459][ T5038] ------------[ cut here ]------------ [ 71.771390][ T5038] WARNING: CPU: 1 PID: 5038 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 71.772677][ T5038] Modules linked in: [ 71.773185][ T5038] CPU: 1 PID: 5038 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 71.774372][ T5038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.775749][ T5038] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 71.776857][ T5038] pc : __btrfs_unlink_inode+0x908/0xb00 [ 71.777574][ T5038] lr : __btrfs_unlink_inode+0x908/0xb00 [ 71.778305][ T5038] sp : ffff8000203d7a60 [ 71.778904][ T5038] x29: ffff8000203d7b10 x28: ffff0000c1b2a000 x27: ffff0000e7a28c10 [ 71.780034][ T5038] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ca75b0b0 [ 71.781170][ T5038] x23: 1ffff0000407af54 x22: dfff800000000000 x21: ffff0000e79eebf0 [ 71.782293][ T5038] x20: ffff0000de8bf528 x19: 1fffe0001bd17ea5 x18: 0000000000000001 [ 71.783415][ T5038] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 71.784533][ T5038] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 71.785674][ T5038] x11: 0000000000000000 x10: 0000000000000000 x9 : 4deeba4c86cc2100 [ 71.786845][ T5038] x8 : 4deeba4c86cc2100 x7 : 0000000000000001 x6 : 0000000000000001 [ 71.788015][ T5038] x5 : ffff8000203d7358 x4 : ffff80001426f5a0 x3 : ffff800008302274 [ 71.789170][ T5038] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 71.790435][ T5038] Call trace: [ 71.790928][ T5038] __btrfs_unlink_inode+0x908/0xb00 [ 71.791648][ T5038] btrfs_unlink+0x108/0x258 [ 71.792271][ T5038] vfs_unlink+0x2e0/0x4f4 [ 71.792869][ T5038] do_unlinkat+0x31c/0x600 [ 71.793514][ T5038] __arm64_sys_unlinkat+0xe0/0xfc [ 71.794219][ T5038] invoke_syscall+0x98/0x2b8 [ 71.794853][ T5038] el0_svc_common+0x138/0x258 [ 71.795533][ T5038] do_el0_svc+0x58/0x14c [ 71.796118][ T5038] el0_svc+0x78/0x1e0 [ 71.796708][ T5038] el0t_64_sync_handler+0xcc/0xe4 [ 71.797390][ T5038] el0t_64_sync+0x1a0/0x1a4 [ 71.798052][ T5038] irq event stamp: 79314 [ 71.798658][ T5038] hardirqs last enabled at (79313): [] __up_console_sem+0xb4/0x100 [ 71.800085][ T5038] hardirqs last disabled at (79314): [] el1_dbg+0x24/0x80 [ 71.801359][ T5038] softirqs last enabled at (79294): [] handle_softirqs+0xa4c/0xbf0 [ 71.802705][ T5038] softirqs last disabled at (79283): [] __irq_exit_rcu+0x240/0x440 [ 71.804022][ T5038] ---[ end trace 1815704f9fa119d1 ]--- [ 71.807461][ T5038] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 71.809015][ T5038] BTRFS info (device loop0): forced readonly [ 71.999029][ T5063] loop0: detected capacity change from 0 to 32768 [ 72.006186][ T5063] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.21 (5063) [ 72.011906][ T5063] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 72.013265][ T5063] BTRFS info (device loop0): using free space tree [ 72.014168][ T5063] BTRFS info (device loop0): has skinny extents [ 72.022641][ T5063] BTRFS info (device loop0): enabling ssd optimizations [ 72.026221][ T5063] FAULT_INJECTION: forcing a failure. [ 72.026221][ T5063] name failslab, interval 1, probability 0, space 0, times 0 [ 72.028132][ T5063] CPU: 0 PID: 5063 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 72.029438][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 72.030964][ T5063] Call trace: [ 72.031438][ T5063] dump_backtrace+0x0/0x43c [ 72.032091][ T5063] show_stack+0x2c/0x3c [ 72.032716][ T5063] __dump_stack+0x30/0x40 [ 72.033340][ T5063] dump_stack_lvl+0xf8/0x160 [ 72.034017][ T5063] dump_stack+0x1c/0x5c [ 72.034604][ T5063] should_fail+0x3c0/0x51c [ 72.035198][ T5063] __should_failslab+0xbc/0x10c [ 72.035883][ T5063] should_failslab+0x10/0x28 [ 72.036541][ T5063] slab_pre_alloc_hook+0x64/0xec [ 72.037222][ T5063] kmem_cache_alloc+0x94/0x3e4 [ 72.037901][ T5063] btrfs_alloc_path+0x5c/0x68 [ 72.038635][ T5063] __btrfs_unlink_inode+0x1d8/0xb00 [ 72.039340][ T5063] btrfs_unlink+0x108/0x258 [ 72.040031][ T5063] vfs_unlink+0x2e0/0x4f4 [ 72.040622][ T5063] do_unlinkat+0x31c/0x600 [ 72.041286][ T5063] __arm64_sys_unlinkat+0xe0/0xfc [ 72.042091][ T5063] invoke_syscall+0x98/0x2b8 [ 72.042746][ T5063] el0_svc_common+0x138/0x258 [ 72.043397][ T5063] do_el0_svc+0x58/0x14c [ 72.044007][ T5063] el0_svc+0x78/0x1e0 [ 72.044593][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 72.045282][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 72.102488][ T4876] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4876) [ 72.192455][ T5084] loop0: detected capacity change from 0 to 32768 [ 72.280687][ T5084] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 72.282081][ T5084] BTRFS info (device loop0): using free space tree [ 72.283133][ T5084] BTRFS info (device loop0): has skinny extents [ 72.291202][ T5084] BTRFS info (device loop0): enabling ssd optimizations [ 72.295065][ T5084] FAULT_INJECTION: forcing a failure. [ 72.295065][ T5084] name failslab, interval 1, probability 0, space 0, times 0 [ 72.297089][ T5084] CPU: 0 PID: 5084 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 72.298344][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 72.299790][ T5084] Call trace: [ 72.300236][ T5084] dump_backtrace+0x0/0x43c [ 72.300882][ T5084] show_stack+0x2c/0x3c [ 72.301494][ T5084] __dump_stack+0x30/0x40 [ 72.302173][ T5084] dump_stack_lvl+0xf8/0x160 [ 72.302819][ T5084] dump_stack+0x1c/0x5c [ 72.303416][ T5084] should_fail+0x3c0/0x51c [ 72.304050][ T5084] __should_failslab+0xbc/0x10c [ 72.304732][ T5084] should_failslab+0x10/0x28 [ 72.305478][ T5084] slab_pre_alloc_hook+0x64/0xec [ 72.306217][ T5084] kmem_cache_alloc_trace+0x98/0x3fc [ 72.306955][ T5084] btrfs_delete_delayed_dir_index+0x220/0x550 [ 72.307880][ T5084] __btrfs_unlink_inode+0x34c/0xb00 [ 72.308608][ T5084] btrfs_unlink+0x108/0x258 [ 72.309274][ T5084] vfs_unlink+0x2e0/0x4f4 [ 72.309939][ T5084] do_unlinkat+0x31c/0x600 [ 72.310598][ T5084] __arm64_sys_unlinkat+0xe0/0xfc [ 72.311314][ T5084] invoke_syscall+0x98/0x2b8 [ 72.311929][ T5084] el0_svc_common+0x138/0x258 [ 72.312635][ T5084] do_el0_svc+0x58/0x14c [ 72.313252][ T5084] el0_svc+0x78/0x1e0 [ 72.313800][ T5084] el0t_64_sync_handler+0xcc/0xe4 [ 72.314519][ T5084] el0t_64_sync+0x1a0/0x1a4 [ 72.317057][ T5084] ------------[ cut here ]------------ [ 72.317998][ T5084] WARNING: CPU: 0 PID: 5084 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 72.319363][ T5084] Modules linked in: [ 72.319969][ T5084] CPU: 0 PID: 5084 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 72.321237][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 72.322676][ T5084] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 72.323833][ T5084] pc : __btrfs_unlink_inode+0x908/0xb00 [ 72.324635][ T5084] lr : __btrfs_unlink_inode+0x908/0xb00 [ 72.325452][ T5084] sp : ffff800020527a60 [ 72.326012][ T5084] x29: ffff800020527b10 x28: ffff0000cc9d4000 x27: ffff0000e3378c10 [ 72.327187][ T5084] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c9f7ef20 [ 72.328347][ T5084] x23: 1ffff000040a4f54 x22: dfff800000000000 x21: ffff0000e7912740 [ 72.329420][ T5084] x20: ffff0000dd2e6688 x19: 1fffe0001ba5ccd1 x18: 0000000000000001 [ 72.330555][ T5084] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 72.331688][ T5084] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 72.332832][ T5084] x11: 0000000000000000 x10: 0000000000000000 x9 : 721b502aa4f8be00 [ 72.333972][ T5084] x8 : 721b502aa4f8be00 x7 : 0000000000000001 x6 : 0000000000000001 [ 72.335111][ T5084] x5 : ffff800020527358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 72.336205][ T5084] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 72.337367][ T5084] Call trace: [ 72.337780][ T5084] __btrfs_unlink_inode+0x908/0xb00 [ 72.338502][ T5084] btrfs_unlink+0x108/0x258 [ 72.339153][ T5084] vfs_unlink+0x2e0/0x4f4 [ 72.339754][ T5084] do_unlinkat+0x31c/0x600 [ 72.340336][ T5084] __arm64_sys_unlinkat+0xe0/0xfc [ 72.341036][ T5084] invoke_syscall+0x98/0x2b8 [ 72.341712][ T5084] el0_svc_common+0x138/0x258 [ 72.342369][ T5084] do_el0_svc+0x58/0x14c [ 72.343090][ T5084] el0_svc+0x78/0x1e0 [ 72.343707][ T5084] el0t_64_sync_handler+0xcc/0xe4 [ 72.344483][ T5084] el0t_64_sync+0x1a0/0x1a4 [ 72.345146][ T5084] irq event stamp: 79276 [ 72.345734][ T5084] hardirqs last enabled at (79275): [] __up_console_sem+0xb4/0x100 [ 72.347051][ T5084] hardirqs last disabled at (79276): [] el1_dbg+0x24/0x80 [ 72.348262][ T5084] softirqs last enabled at (79256): [] handle_softirqs+0xa4c/0xbf0 [ 72.349721][ T5084] softirqs last disabled at (79163): [] __irq_exit_rcu+0x240/0x440 [ 72.351078][ T5084] ---[ end trace 1815704f9fa119d2 ]--- [ 72.354314][ T5084] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 72.355778][ T5084] BTRFS info (device loop0): forced readonly [ 72.420738][ T4876] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by udevd (4876) [ 72.521611][ T5108] loop0: detected capacity change from 0 to 32768 [ 72.555064][ T447] device hsr_slave_0 left promiscuous mode [ 72.590537][ T447] device hsr_slave_1 left promiscuous mode [ 72.611424][ T5108] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 72.612799][ T5108] BTRFS info (device loop0): using free space tree [ 72.613760][ T5108] BTRFS info (device loop0): has skinny extents [ 72.625847][ T5108] BTRFS info (device loop0): enabling ssd optimizations [ 72.633025][ T5108] FAULT_INJECTION: forcing a failure. [ 72.633025][ T5108] name failslab, interval 1, probability 0, space 0, times 0 [ 72.634981][ T5108] CPU: 0 PID: 5108 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 72.636131][ T5108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 72.637469][ T5108] Call trace: [ 72.637893][ T5108] dump_backtrace+0x0/0x43c [ 72.638494][ T5108] show_stack+0x2c/0x3c [ 72.639106][ T5108] __dump_stack+0x30/0x40 [ 72.639747][ T5108] dump_stack_lvl+0xf8/0x160 [ 72.640435][ T5108] dump_stack+0x1c/0x5c [ 72.641077][ T5108] should_fail+0x3c0/0x51c [ 72.641738][ T5108] __should_failslab+0xbc/0x10c [ 72.642452][ T5108] should_failslab+0x10/0x28 [ 72.643041][ T5108] slab_pre_alloc_hook+0x64/0xec [ 72.643746][ T5108] kmem_cache_alloc_trace+0x98/0x3fc [ 72.644494][ T5108] btrfs_delete_delayed_dir_index+0x220/0x550 [ 72.645363][ T5108] __btrfs_unlink_inode+0x34c/0xb00 [ 72.646073][ T5108] btrfs_unlink+0x108/0x258 [ 72.646776][ T5108] vfs_unlink+0x2e0/0x4f4 [ 72.647393][ T5108] do_unlinkat+0x31c/0x600 [ 72.648017][ T5108] __arm64_sys_unlinkat+0xe0/0xfc [ 72.648735][ T5108] invoke_syscall+0x98/0x2b8 [ 72.649358][ T5108] el0_svc_common+0x138/0x258 [ 72.649986][ T5108] do_el0_svc+0x58/0x14c [ 72.650553][ T5108] el0_svc+0x78/0x1e0 [ 72.651099][ T5108] el0t_64_sync_handler+0xcc/0xe4 [ 72.651776][ T5108] el0t_64_sync+0x1a0/0x1a4 [ 72.653209][ T5108] ------------[ cut here ]------------ [ 72.654159][ T5108] WARNING: CPU: 0 PID: 5108 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 72.655618][ T5108] Modules linked in: [ 72.656173][ T5108] CPU: 0 PID: 5108 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 72.657431][ T5108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 72.658924][ T5108] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 72.660031][ T5108] pc : __btrfs_unlink_inode+0x908/0xb00 [ 72.660879][ T5108] lr : __btrfs_unlink_inode+0x908/0xb00 [ 72.661695][ T5108] sp : ffff800020557a60 [ 72.662259][ T5108] x29: ffff800020557b10 x28: ffff0000e8390000 x27: ffff0000e3379010 [ 72.663413][ T5108] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cb1bfbb0 [ 72.664637][ T5108] x23: 1ffff000040aaf54 x22: dfff800000000000 x21: ffff0000e79144b0 [ 72.665877][ T5108] x20: ffff0000dd2e67e8 x19: 1fffe0001ba5ccfd x18: 0000000000000001 [ 72.667014][ T5108] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 72.668247][ T5108] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 72.669496][ T5108] x11: 0000000000000000 x10: 0000000000000000 x9 : 00530dbe0331cd00 [ 72.670599][ T5108] x8 : 00530dbe0331cd00 x7 : 0000000000000001 x6 : 0000000000000001 [ 72.671757][ T5108] x5 : ffff800020557358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 72.672974][ T5108] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 72.674227][ T5108] Call trace: [ 72.674687][ T5108] __btrfs_unlink_inode+0x908/0xb00 [ 72.675438][ T5108] btrfs_unlink+0x108/0x258 [ 72.676126][ T5108] vfs_unlink+0x2e0/0x4f4 [ 72.676760][ T5108] do_unlinkat+0x31c/0x600 [ 72.677434][ T5108] __arm64_sys_unlinkat+0xe0/0xfc [ 72.678151][ T5108] invoke_syscall+0x98/0x2b8 [ 72.678865][ T5108] el0_svc_common+0x138/0x258 [ 72.679560][ T5108] do_el0_svc+0x58/0x14c [ 72.680214][ T5108] el0_svc+0x78/0x1e0 [ 72.680803][ T5108] el0t_64_sync_handler+0xcc/0xe4 [ 72.681524][ T5108] el0t_64_sync+0x1a0/0x1a4 [ 72.682189][ T5108] irq event stamp: 79466 [ 72.682812][ T5108] hardirqs last enabled at (79465): [] __up_console_sem+0xb4/0x100 [ 72.684157][ T5108] hardirqs last disabled at (79466): [] el1_dbg+0x24/0x80 [ 72.685400][ T5108] softirqs last enabled at (79446): [] handle_softirqs+0xa4c/0xbf0 [ 72.686751][ T5108] softirqs last disabled at (79407): [] __irq_exit_rcu+0x240/0x440 [ 72.688044][ T5108] ---[ end trace 1815704f9fa119d3 ]--- [ 72.695646][ T447] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 72.696744][ T447] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 72.698262][ T447] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 72.699411][ T447] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 72.701190][ T447] device bridge_slave_1 left promiscuous mode [ 72.702189][ T447] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.703634][ T5108] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 72.705126][ T5108] BTRFS info (device loop0): forced readonly [ 72.740723][ T447] device bridge_slave_0 left promiscuous mode [ 72.741789][ T447] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.829722][ T4068] Bluetooth: hci0: command 0x0419 tx timeout [ 72.844850][ T5131] loop0: detected capacity change from 0 to 32768 [ 72.879705][ T447] device veth1_macvtap left promiscuous mode [ 72.880840][ T447] device veth0_macvtap left promiscuous mode [ 72.881812][ T447] device veth1_vlan left promiscuous mode [ 72.882685][ T447] device veth0_vlan left promiscuous mode [ 72.891063][ T5131] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.24 (5131) [ 72.942379][ T5131] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 72.949618][ T5131] BTRFS info (device loop0): using free space tree [ 72.950706][ T5131] BTRFS info (device loop0): has skinny extents [ 72.985363][ T5131] BTRFS info (device loop0): enabling ssd optimizations [ 72.989096][ T5131] FAULT_INJECTION: forcing a failure. [ 72.989096][ T5131] name failslab, interval 1, probability 0, space 0, times 0 [ 72.992839][ T5131] CPU: 1 PID: 5131 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 72.994000][ T5131] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 72.995385][ T5131] Call trace: [ 72.995808][ T5131] dump_backtrace+0x0/0x43c [ 72.996442][ T5131] show_stack+0x2c/0x3c [ 72.997000][ T5131] __dump_stack+0x30/0x40 [ 72.997654][ T5131] dump_stack_lvl+0xf8/0x160 [ 72.998291][ T5131] dump_stack+0x1c/0x5c [ 72.998858][ T5131] should_fail+0x3c0/0x51c [ 72.999496][ T5131] __should_failslab+0xbc/0x10c [ 73.000235][ T5131] should_failslab+0x10/0x28 [ 73.000899][ T5131] slab_pre_alloc_hook+0x64/0xec [ 73.001613][ T5131] kmem_cache_alloc_trace+0x98/0x3fc [ 73.002423][ T5131] btrfs_delete_delayed_dir_index+0x220/0x550 [ 73.003284][ T5131] __btrfs_unlink_inode+0x34c/0xb00 [ 73.004006][ T5131] btrfs_unlink+0x108/0x258 [ 73.004637][ T5131] vfs_unlink+0x2e0/0x4f4 [ 73.005299][ T5131] do_unlinkat+0x31c/0x600 [ 73.005893][ T5131] __arm64_sys_unlinkat+0xe0/0xfc [ 73.006576][ T5131] invoke_syscall+0x98/0x2b8 [ 73.007248][ T5131] el0_svc_common+0x138/0x258 [ 73.007915][ T5131] do_el0_svc+0x58/0x14c [ 73.008521][ T5131] el0_svc+0x78/0x1e0 [ 73.009115][ T5131] el0t_64_sync_handler+0xcc/0xe4 [ 73.009810][ T5131] el0t_64_sync+0x1a0/0x1a4 [ 73.013092][ T5131] ------------[ cut here ]------------ [ 73.014093][ T5131] WARNING: CPU: 1 PID: 5131 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 73.015348][ T5131] Modules linked in: [ 73.015885][ T5131] CPU: 1 PID: 5131 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 73.017024][ T5131] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.018397][ T5131] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.019494][ T5131] pc : __btrfs_unlink_inode+0x908/0xb00 [ 73.020339][ T5131] lr : __btrfs_unlink_inode+0x908/0xb00 [ 73.021085][ T5131] sp : ffff800020777a60 [ 73.021680][ T5131] x29: ffff800020777b10 x28: ffff0000d831a000 x27: ffff0000e7a29010 [ 73.022951][ T5131] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c8393580 [ 73.024193][ T5131] x23: 1ffff000040eef54 x22: dfff800000000000 x21: ffff0000e79b1d70 [ 73.025406][ T5131] x20: ffff0000de8bf7e8 x19: 1fffe0001bd17efd x18: 0000000000000001 [ 73.026562][ T5131] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 73.027684][ T5131] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 73.028901][ T5131] x11: 0000000000000000 x10: 0000000000000000 x9 : 3c4bdd74cf984000 [ 73.030013][ T5131] x8 : 3c4bdd74cf984000 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.031108][ T5131] x5 : ffff800020777358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 73.032225][ T5131] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.033394][ T5131] Call trace: [ 73.033823][ T5131] __btrfs_unlink_inode+0x908/0xb00 [ 73.034524][ T5131] btrfs_unlink+0x108/0x258 [ 73.035132][ T5131] vfs_unlink+0x2e0/0x4f4 [ 73.035708][ T5131] do_unlinkat+0x31c/0x600 [ 73.036303][ T5131] __arm64_sys_unlinkat+0xe0/0xfc [ 73.037086][ T5131] invoke_syscall+0x98/0x2b8 [ 73.037754][ T5131] el0_svc_common+0x138/0x258 [ 73.038413][ T5131] do_el0_svc+0x58/0x14c [ 73.038990][ T5131] el0_svc+0x78/0x1e0 [ 73.039568][ T5131] el0t_64_sync_handler+0xcc/0xe4 [ 73.040315][ T5131] el0t_64_sync+0x1a0/0x1a4 [ 73.041007][ T5131] irq event stamp: 79858 [ 73.041697][ T5131] hardirqs last enabled at (79857): [] __up_console_sem+0xb4/0x100 [ 73.043101][ T5131] hardirqs last disabled at (79858): [] el1_dbg+0x24/0x80 [ 73.044535][ T5131] softirqs last enabled at (79834): [] handle_softirqs+0xa4c/0xbf0 [ 73.045952][ T5131] softirqs last disabled at (79769): [] __irq_exit_rcu+0x240/0x440 [ 73.047229][ T5131] ---[ end trace 1815704f9fa119d4 ]--- [ 73.050175][ T447] team0 (unregistering): Port device team_slave_1 removed [ 73.050727][ T5131] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 73.052796][ T5131] BTRFS info (device loop0): forced readonly [ 73.056064][ T447] team0 (unregistering): Port device team_slave_0 removed [ 73.064769][ T447] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 73.113580][ T447] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 73.205317][ T447] bond0 (unregistering): Released all slaves [ 73.208026][ T5154] loop0: detected capacity change from 0 to 32768 [ 73.270439][ T5154] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.25 (5154) [ 73.273477][ T5154] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 73.274811][ T5154] BTRFS info (device loop0): using free space tree [ 73.275718][ T5154] BTRFS info (device loop0): has skinny extents [ 73.284082][ T5154] BTRFS info (device loop0): enabling ssd optimizations [ 73.287924][ T5154] FAULT_INJECTION: forcing a failure. [ 73.287924][ T5154] name failslab, interval 1, probability 0, space 0, times 0 [ 73.294670][ T5154] CPU: 0 PID: 5154 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 73.295938][ T5154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.297278][ T5154] Call trace: [ 73.297753][ T5154] dump_backtrace+0x0/0x43c [ 73.298389][ T5154] show_stack+0x2c/0x3c [ 73.298994][ T5154] __dump_stack+0x30/0x40 [ 73.299608][ T5154] dump_stack_lvl+0xf8/0x160 [ 73.300302][ T5154] dump_stack+0x1c/0x5c [ 73.300921][ T5154] should_fail+0x3c0/0x51c [ 73.301613][ T5154] __should_failslab+0xbc/0x10c [ 73.302299][ T5154] should_failslab+0x10/0x28 [ 73.303021][ T5154] slab_pre_alloc_hook+0x64/0xec [ 73.303738][ T5154] kmem_cache_alloc_trace+0x98/0x3fc [ 73.304549][ T5154] btrfs_delete_delayed_dir_index+0x220/0x550 [ 73.305464][ T5154] __btrfs_unlink_inode+0x34c/0xb00 [ 73.306199][ T5154] btrfs_unlink+0x108/0x258 [ 73.306955][ T5154] vfs_unlink+0x2e0/0x4f4 [ 73.307600][ T5154] do_unlinkat+0x31c/0x600 [ 73.308249][ T5154] __arm64_sys_unlinkat+0xe0/0xfc [ 73.309000][ T5154] invoke_syscall+0x98/0x2b8 [ 73.309665][ T5154] el0_svc_common+0x138/0x258 [ 73.310284][ T5154] do_el0_svc+0x58/0x14c [ 73.310944][ T5154] el0_svc+0x78/0x1e0 [ 73.311592][ T5154] el0t_64_sync_handler+0xcc/0xe4 [ 73.312343][ T5154] el0t_64_sync+0x1a0/0x1a4 [ 73.313650][ T5154] ------------[ cut here ]------------ [ 73.314568][ T5154] WARNING: CPU: 0 PID: 5154 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 73.315952][ T5154] Modules linked in: [ 73.316489][ T5154] CPU: 0 PID: 5154 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 73.317811][ T5154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.319259][ T5154] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.320430][ T5154] pc : __btrfs_unlink_inode+0x908/0xb00 [ 73.321266][ T5154] lr : __btrfs_unlink_inode+0x908/0xb00 [ 73.322069][ T5154] sp : ffff8000209c7a60 [ 73.322703][ T5154] x29: ffff8000209c7b10 x28: ffff0000d6cb0000 x27: ffff0000e3379410 [ 73.323862][ T5154] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c7e66dc0 [ 73.324962][ T5154] x23: 1ffff00004138f54 x22: dfff800000000000 x21: ffff0000e7916220 [ 73.326052][ T5154] x20: ffff0000dd2e6948 x19: 1fffe0001ba5cd29 x18: 0000000000000001 [ 73.327221][ T5154] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 73.328366][ T5154] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 73.329481][ T5154] x11: 0000000000000000 x10: 0000000000000000 x9 : e2edf6594481fe00 [ 73.330659][ T5154] x8 : e2edf6594481fe00 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.331828][ T5154] x5 : ffff8000209c7358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 73.333009][ T5154] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.334158][ T5154] Call trace: [ 73.334609][ T5154] __btrfs_unlink_inode+0x908/0xb00 [ 73.335290][ T5154] btrfs_unlink+0x108/0x258 [ 73.335963][ T5154] vfs_unlink+0x2e0/0x4f4 [ 73.336604][ T5154] do_unlinkat+0x31c/0x600 [ 73.337286][ T5154] __arm64_sys_unlinkat+0xe0/0xfc [ 73.337979][ T5154] invoke_syscall+0x98/0x2b8 [ 73.338648][ T5154] el0_svc_common+0x138/0x258 [ 73.339279][ T5154] do_el0_svc+0x58/0x14c [ 73.339847][ T5154] el0_svc+0x78/0x1e0 [ 73.340372][ T5154] el0t_64_sync_handler+0xcc/0xe4 [ 73.341060][ T5154] el0t_64_sync+0x1a0/0x1a4 [ 73.341716][ T5154] irq event stamp: 79302 [ 73.342338][ T5154] hardirqs last enabled at (79301): [] __up_console_sem+0xb4/0x100 [ 73.343740][ T5154] hardirqs last disabled at (79302): [] el1_dbg+0x24/0x80 [ 73.344910][ T5154] softirqs last enabled at (79282): [] handle_softirqs+0xa4c/0xbf0 [ 73.346286][ T5154] softirqs last disabled at (79265): [] __irq_exit_rcu+0x240/0x440 [ 73.347721][ T5154] ---[ end trace 1815704f9fa119d5 ]--- [ 73.351851][ T5154] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 73.353242][ T5154] BTRFS info (device loop0): forced readonly [ 73.486728][ T5177] loop0: detected capacity change from 0 to 32768 [ 73.531753][ T5177] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.26 (5177) [ 73.575968][ T5177] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 73.577354][ T5177] BTRFS info (device loop0): using free space tree [ 73.578403][ T5177] BTRFS info (device loop0): has skinny extents [ 73.592977][ T5177] BTRFS info (device loop0): enabling ssd optimizations [ 73.596770][ T5177] FAULT_INJECTION: forcing a failure. [ 73.596770][ T5177] name failslab, interval 1, probability 0, space 0, times 0 [ 73.598549][ T5177] CPU: 1 PID: 5177 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 73.599717][ T5177] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.601215][ T5177] Call trace: [ 73.601747][ T5177] dump_backtrace+0x0/0x43c [ 73.602373][ T5177] show_stack+0x2c/0x3c [ 73.602939][ T5177] __dump_stack+0x30/0x40 [ 73.603573][ T5177] dump_stack_lvl+0xf8/0x160 [ 73.604219][ T5177] dump_stack+0x1c/0x5c [ 73.604927][ T5177] should_fail+0x3c0/0x51c [ 73.605581][ T5177] __should_failslab+0xbc/0x10c [ 73.606348][ T5177] should_failslab+0x10/0x28 [ 73.607014][ T5177] slab_pre_alloc_hook+0x64/0xec [ 73.607729][ T5177] kmem_cache_alloc_trace+0x98/0x3fc [ 73.608509][ T5177] btrfs_delete_delayed_dir_index+0x220/0x550 [ 73.609357][ T5177] __btrfs_unlink_inode+0x34c/0xb00 [ 73.610169][ T5177] btrfs_unlink+0x108/0x258 [ 73.610835][ T5177] vfs_unlink+0x2e0/0x4f4 [ 73.611476][ T5177] do_unlinkat+0x31c/0x600 [ 73.612158][ T5177] __arm64_sys_unlinkat+0xe0/0xfc [ 73.612793][ T5177] invoke_syscall+0x98/0x2b8 [ 73.613399][ T5177] el0_svc_common+0x138/0x258 [ 73.614039][ T5177] do_el0_svc+0x58/0x14c [ 73.614643][ T5177] el0_svc+0x78/0x1e0 [ 73.615198][ T5177] el0t_64_sync_handler+0xcc/0xe4 [ 73.615856][ T5177] el0t_64_sync+0x1a0/0x1a4 [ 73.618346][ T5177] ------------[ cut here ]------------ [ 73.619317][ T5177] WARNING: CPU: 1 PID: 5177 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 73.620683][ T5177] Modules linked in: [ 73.621243][ T5177] CPU: 1 PID: 5177 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 73.622524][ T5177] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.624024][ T5177] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.625349][ T5177] pc : __btrfs_unlink_inode+0x908/0xb00 [ 73.626257][ T5177] lr : __btrfs_unlink_inode+0x908/0xb00 [ 73.627126][ T5177] sp : ffff800020b07a60 [ 73.627739][ T5177] x29: ffff800020b07b10 x28: ffff0000d550e000 x27: ffff0000e7a29410 [ 73.628895][ T5177] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d29a7630 [ 73.630047][ T5177] x23: 1ffff00004160f54 x22: dfff800000000000 x21: ffff0000e79b44b0 [ 73.631186][ T5177] x20: ffff0000de8bf948 x19: 1fffe0001bd17f29 x18: 0000000000000001 [ 73.632366][ T5177] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 73.633520][ T5177] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 73.634690][ T5177] x11: 0000000000000000 x10: 0000000000000000 x9 : 71b5f41ea7791a00 [ 73.635774][ T5177] x8 : 71b5f41ea7791a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.636860][ T5177] x5 : ffff800020b07358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 73.638011][ T5177] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.639157][ T5177] Call trace: [ 73.639641][ T5177] __btrfs_unlink_inode+0x908/0xb00 [ 73.640345][ T5177] btrfs_unlink+0x108/0x258 [ 73.641020][ T5177] vfs_unlink+0x2e0/0x4f4 [ 73.641689][ T5177] do_unlinkat+0x31c/0x600 [ 73.642307][ T5177] __arm64_sys_unlinkat+0xe0/0xfc [ 73.642994][ T5177] invoke_syscall+0x98/0x2b8 [ 73.643628][ T5177] el0_svc_common+0x138/0x258 [ 73.644246][ T5177] do_el0_svc+0x58/0x14c [ 73.644910][ T5177] el0_svc+0x78/0x1e0 [ 73.645486][ T5177] el0t_64_sync_handler+0xcc/0xe4 [ 73.646190][ T5177] el0t_64_sync+0x1a0/0x1a4 [ 73.646800][ T5177] irq event stamp: 79164 [ 73.647355][ T5177] hardirqs last enabled at (79163): [] __up_console_sem+0xb4/0x100 [ 73.648767][ T5177] hardirqs last disabled at (79164): [] el1_dbg+0x24/0x80 [ 73.650031][ T5177] softirqs last enabled at (79144): [] handle_softirqs+0xa4c/0xbf0 [ 73.651401][ T5177] softirqs last disabled at (79117): [] __irq_exit_rcu+0x240/0x440 [ 73.652750][ T5177] ---[ end trace 1815704f9fa119d6 ]--- [ 73.654442][ T5177] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 73.655773][ T5177] BTRFS info (device loop0): forced readonly [ 73.799974][ T5199] loop0: detected capacity change from 0 to 32768 [ 73.894226][ T5199] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.27 (5199) [ 73.896914][ T5199] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 73.898218][ T5199] BTRFS info (device loop0): using free space tree [ 73.899251][ T5199] BTRFS info (device loop0): has skinny extents [ 73.918258][ T5199] BTRFS info (device loop0): enabling ssd optimizations [ 73.932871][ T5199] FAULT_INJECTION: forcing a failure. [ 73.932871][ T5199] name failslab, interval 1, probability 0, space 0, times 0 [ 73.934695][ T5199] CPU: 1 PID: 5199 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 73.936031][ T5199] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.937521][ T5199] Call trace: [ 73.937962][ T5199] dump_backtrace+0x0/0x43c [ 73.938556][ T5199] show_stack+0x2c/0x3c [ 73.939151][ T5199] __dump_stack+0x30/0x40 [ 73.939738][ T5199] dump_stack_lvl+0xf8/0x160 [ 73.940387][ T5199] dump_stack+0x1c/0x5c [ 73.941008][ T5199] should_fail+0x3c0/0x51c [ 73.941609][ T5199] __should_failslab+0xbc/0x10c [ 73.942297][ T5199] should_failslab+0x10/0x28 [ 73.942989][ T5199] slab_pre_alloc_hook+0x64/0xec [ 73.943689][ T5199] kmem_cache_alloc_trace+0x98/0x3fc [ 73.944454][ T5199] btrfs_delete_delayed_dir_index+0x220/0x550 [ 73.945281][ T5199] __btrfs_unlink_inode+0x34c/0xb00 [ 73.946031][ T5199] btrfs_unlink+0x108/0x258 [ 73.946659][ T5199] vfs_unlink+0x2e0/0x4f4 [ 73.947276][ T5199] do_unlinkat+0x31c/0x600 [ 73.947901][ T5199] __arm64_sys_unlinkat+0xe0/0xfc [ 73.948639][ T5199] invoke_syscall+0x98/0x2b8 [ 73.949324][ T5199] el0_svc_common+0x138/0x258 [ 73.950010][ T5199] do_el0_svc+0x58/0x14c [ 73.950653][ T5199] el0_svc+0x78/0x1e0 [ 73.951241][ T5199] el0t_64_sync_handler+0xcc/0xe4 [ 73.952003][ T5199] el0t_64_sync+0x1a0/0x1a4 [ 73.955059][ T5199] ------------[ cut here ]------------ [ 73.955965][ T5199] WARNING: CPU: 1 PID: 5199 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 73.957244][ T5199] Modules linked in: [ 73.957780][ T5199] CPU: 1 PID: 5199 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 73.958942][ T5199] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.960426][ T5199] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.961535][ T5199] pc : __btrfs_unlink_inode+0x908/0xb00 [ 73.962297][ T5199] lr : __btrfs_unlink_inode+0x908/0xb00 [ 73.963007][ T5199] sp : ffff800020b07a60 [ 73.963616][ T5199] x29: ffff800020b07b10 x28: ffff0000d8878000 x27: ffff0000e7a29810 [ 73.964769][ T5199] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000e81308f0 [ 73.965914][ T5199] x23: 1ffff00004160f54 x22: dfff800000000000 x21: ffff0000e79b6bf0 [ 73.967121][ T5199] x20: ffff0000de8bf058 x19: 1fffe0001bd17e0b x18: 0000000000000001 [ 73.968287][ T5199] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 73.969486][ T5199] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 73.970559][ T5199] x11: 0000000000000000 x10: 0000000000000000 x9 : 7bdac406c6516f00 [ 73.971728][ T5199] x8 : 7bdac406c6516f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.972819][ T5199] x5 : ffff800020b07358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 73.974041][ T5199] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.975225][ T5199] Call trace: [ 73.975664][ T5199] __btrfs_unlink_inode+0x908/0xb00 [ 73.976386][ T5199] btrfs_unlink+0x108/0x258 [ 73.976994][ T5199] vfs_unlink+0x2e0/0x4f4 [ 73.977586][ T5199] do_unlinkat+0x31c/0x600 [ 73.978191][ T5199] __arm64_sys_unlinkat+0xe0/0xfc [ 73.978951][ T5199] invoke_syscall+0x98/0x2b8 [ 73.979637][ T5199] el0_svc_common+0x138/0x258 [ 73.980329][ T5199] do_el0_svc+0x58/0x14c [ 73.980920][ T5199] el0_svc+0x78/0x1e0 [ 73.981488][ T5199] el0t_64_sync_handler+0xcc/0xe4 [ 73.982238][ T5199] el0t_64_sync+0x1a0/0x1a4 [ 73.982920][ T5199] irq event stamp: 79298 [ 73.983511][ T5199] hardirqs last enabled at (79297): [] __up_console_sem+0xb4/0x100 [ 73.984949][ T5199] hardirqs last disabled at (79298): [] el1_dbg+0x24/0x80 [ 73.986164][ T5199] softirqs last enabled at (79278): [] handle_softirqs+0xa4c/0xbf0 [ 73.987532][ T5199] softirqs last disabled at (79187): [] __irq_exit_rcu+0x240/0x440 [ 73.988802][ T5199] ---[ end trace 1815704f9fa119d7 ]--- [ 73.990527][ T5199] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 73.991961][ T5199] BTRFS info (device loop0): forced readonly [ 74.172673][ T5221] loop0: detected capacity change from 0 to 32768 [ 74.210657][ T5221] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.28 (5221) [ 74.259444][ T5221] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.261311][ T5221] BTRFS info (device loop0): using free space tree [ 74.262293][ T5221] BTRFS info (device loop0): has skinny extents [ 74.270347][ T5221] BTRFS info (device loop0): enabling ssd optimizations [ 74.274209][ T5221] FAULT_INJECTION: forcing a failure. [ 74.274209][ T5221] name failslab, interval 1, probability 0, space 0, times 0 [ 74.276239][ T5221] CPU: 0 PID: 5221 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 74.277502][ T5221] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.278914][ T5221] Call trace: [ 74.279400][ T5221] dump_backtrace+0x0/0x43c [ 74.280071][ T5221] show_stack+0x2c/0x3c [ 74.280745][ T5221] __dump_stack+0x30/0x40 [ 74.281398][ T5221] dump_stack_lvl+0xf8/0x160 [ 74.282070][ T5221] dump_stack+0x1c/0x5c [ 74.282663][ T5221] should_fail+0x3c0/0x51c [ 74.283400][ T5221] __should_failslab+0xbc/0x10c [ 74.284181][ T5221] should_failslab+0x10/0x28 [ 74.284911][ T5221] slab_pre_alloc_hook+0x64/0xec [ 74.285701][ T5221] kmem_cache_alloc+0x94/0x3e4 [ 74.286451][ T5221] btrfs_alloc_path+0x5c/0x68 [ 74.287163][ T5221] __btrfs_unlink_inode+0x1d8/0xb00 [ 74.287943][ T5221] btrfs_unlink+0x108/0x258 [ 74.288650][ T5221] vfs_unlink+0x2e0/0x4f4 [ 74.289248][ T5221] do_unlinkat+0x31c/0x600 [ 74.289836][ T5221] __arm64_sys_unlinkat+0xe0/0xfc [ 74.290611][ T5221] invoke_syscall+0x98/0x2b8 [ 74.291229][ T5221] el0_svc_common+0x138/0x258 [ 74.291891][ T5221] do_el0_svc+0x58/0x14c [ 74.292490][ T5221] el0_svc+0x78/0x1e0 [ 74.293024][ T5221] el0t_64_sync_handler+0xcc/0xe4 [ 74.293694][ T5221] el0t_64_sync+0x1a0/0x1a4 [ 74.348551][ T4876] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4876) [ 74.440823][ T5242] loop0: detected capacity change from 0 to 32768 [ 74.531990][ T5242] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.533479][ T5242] BTRFS info (device loop0): using free space tree [ 74.534447][ T5242] BTRFS info (device loop0): has skinny extents [ 74.655201][ T5242] BTRFS info (device loop0): enabling ssd optimizations [ 74.659028][ T5242] FAULT_INJECTION: forcing a failure. [ 74.659028][ T5242] name failslab, interval 1, probability 0, space 0, times 0 [ 74.661447][ T5242] CPU: 1 PID: 5242 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 74.662615][ T5242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.664088][ T5242] Call trace: [ 74.664531][ T5242] dump_backtrace+0x0/0x43c [ 74.665174][ T5242] show_stack+0x2c/0x3c [ 74.665737][ T5242] __dump_stack+0x30/0x40 [ 74.666337][ T5242] dump_stack_lvl+0xf8/0x160 [ 74.666978][ T5242] dump_stack+0x1c/0x5c [ 74.667571][ T5242] should_fail+0x3c0/0x51c [ 74.668197][ T5242] __should_failslab+0xbc/0x10c [ 74.668888][ T5242] should_failslab+0x10/0x28 [ 74.669552][ T5242] slab_pre_alloc_hook+0x64/0xec [ 74.670280][ T5242] kmem_cache_alloc+0x94/0x3e4 [ 74.670993][ T5242] btrfs_alloc_path+0x5c/0x68 [ 74.671742][ T5242] __btrfs_unlink_inode+0x1d8/0xb00 [ 74.672458][ T5242] btrfs_unlink+0x108/0x258 [ 74.673159][ T5242] vfs_unlink+0x2e0/0x4f4 [ 74.673806][ T5242] do_unlinkat+0x31c/0x600 [ 74.674472][ T5242] __arm64_sys_unlinkat+0xe0/0xfc [ 74.675204][ T5242] invoke_syscall+0x98/0x2b8 [ 74.675891][ T5242] el0_svc_common+0x138/0x258 [ 74.676546][ T5242] do_el0_svc+0x58/0x14c [ 74.677168][ T5242] el0_svc+0x78/0x1e0 [ 74.677870][ T5242] el0t_64_sync_handler+0xcc/0xe4 [ 74.678578][ T5242] el0t_64_sync+0x1a0/0x1a4 [ 74.840257][ T5266] loop0: detected capacity change from 0 to 32768 [ 74.842470][ T5266] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.30 (5266) [ 74.848220][ T5266] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.851182][ T5266] BTRFS info (device loop0): using free space tree [ 74.852097][ T5266] BTRFS info (device loop0): has skinny extents [ 74.938691][ T5266] BTRFS info (device loop0): enabling ssd optimizations [ 74.942761][ T5266] FAULT_INJECTION: forcing a failure. [ 74.942761][ T5266] name failslab, interval 1, probability 0, space 0, times 0 [ 74.944688][ T5266] CPU: 0 PID: 5266 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 74.945850][ T5266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.947343][ T5266] Call trace: [ 74.947860][ T5266] dump_backtrace+0x0/0x43c [ 74.948514][ T5266] show_stack+0x2c/0x3c [ 74.949139][ T5266] __dump_stack+0x30/0x40 [ 74.949816][ T5266] dump_stack_lvl+0xf8/0x160 [ 74.950490][ T5266] dump_stack+0x1c/0x5c [ 74.951119][ T5266] should_fail+0x3c0/0x51c [ 74.951759][ T5266] __should_failslab+0xbc/0x10c [ 74.952457][ T5266] should_failslab+0x10/0x28 [ 74.953144][ T5266] slab_pre_alloc_hook+0x64/0xec [ 74.953875][ T5266] kmem_cache_alloc_trace+0x98/0x3fc [ 74.954674][ T5266] btrfs_delete_delayed_dir_index+0x220/0x550 [ 74.955573][ T5266] __btrfs_unlink_inode+0x34c/0xb00 [ 74.956305][ T5266] btrfs_unlink+0x108/0x258 [ 74.956978][ T5266] vfs_unlink+0x2e0/0x4f4 [ 74.957630][ T5266] do_unlinkat+0x31c/0x600 [ 74.958316][ T5266] __arm64_sys_unlinkat+0xe0/0xfc [ 74.959036][ T5266] invoke_syscall+0x98/0x2b8 [ 74.959666][ T5266] el0_svc_common+0x138/0x258 [ 74.960382][ T5266] do_el0_svc+0x58/0x14c [ 74.961016][ T5266] el0_svc+0x78/0x1e0 [ 74.961553][ T5266] el0t_64_sync_handler+0xcc/0xe4 [ 74.962251][ T5266] el0t_64_sync+0x1a0/0x1a4 [ 74.963904][ T5266] ------------[ cut here ]------------ [ 74.964843][ T5266] WARNING: CPU: 0 PID: 5266 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 74.966186][ T5266] Modules linked in: [ 74.966749][ T5266] CPU: 0 PID: 5266 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 74.968017][ T5266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.969406][ T5266] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.970491][ T5266] pc : __btrfs_unlink_inode+0x908/0xb00 [ 74.971258][ T5266] lr : __btrfs_unlink_inode+0x908/0xb00 [ 74.972158][ T5266] sp : ffff80001f287a60 [ 74.972697][ T5266] x29: ffff80001f287b10 x28: ffff0000daa9e000 x27: ffff0000e3379810 [ 74.973893][ T5266] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ca3e38f0 [ 74.975031][ T5266] x23: 1ffff00003e50f54 x22: dfff800000000000 x21: ffff0000e79ece80 [ 74.976180][ T5266] x20: ffff0000dd2e6aa8 x19: 1fffe0001ba5cd55 x18: 0000000000000001 [ 74.977289][ T5266] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 74.978416][ T5266] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 74.979582][ T5266] x11: 0000000000000000 x10: 0000000000000000 x9 : 2641868edbb55f00 [ 74.980759][ T5266] x8 : 2641868edbb55f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.981961][ T5266] x5 : ffff80001f287358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 74.983124][ T5266] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.984279][ T5266] Call trace: [ 74.984737][ T5266] __btrfs_unlink_inode+0x908/0xb00 [ 74.985456][ T5266] btrfs_unlink+0x108/0x258 [ 74.986120][ T5266] vfs_unlink+0x2e0/0x4f4 [ 74.986742][ T5266] do_unlinkat+0x31c/0x600 [ 74.987422][ T5266] __arm64_sys_unlinkat+0xe0/0xfc [ 74.988200][ T5266] invoke_syscall+0x98/0x2b8 [ 74.988843][ T5266] el0_svc_common+0x138/0x258 [ 74.989475][ T5266] do_el0_svc+0x58/0x14c [ 74.990088][ T5266] el0_svc+0x78/0x1e0 [ 74.990648][ T5266] el0t_64_sync_handler+0xcc/0xe4 [ 74.991369][ T5266] el0t_64_sync+0x1a0/0x1a4 [ 74.992005][ T5266] irq event stamp: 78716 [ 74.992642][ T5266] hardirqs last enabled at (78715): [] __up_console_sem+0xb4/0x100 [ 74.993988][ T5266] hardirqs last disabled at (78716): [] el1_dbg+0x24/0x80 [ 74.995217][ T5266] softirqs last enabled at (78696): [] handle_softirqs+0xa4c/0xbf0 [ 74.996498][ T5266] softirqs last disabled at (78647): [] __irq_exit_rcu+0x240/0x440 [ 74.997871][ T5266] ---[ end trace 1815704f9fa119d8 ]--- [ 75.001233][ T5266] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 75.002662][ T5266] BTRFS info (device loop0): forced readonly [ 75.198429][ T5288] loop0: detected capacity change from 0 to 32768 [ 75.204703][ T5288] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.31 (5288) [ 75.208962][ T5288] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.210705][ T5288] BTRFS info (device loop0): using free space tree [ 75.211684][ T5288] BTRFS info (device loop0): has skinny extents [ 75.243166][ T5288] BTRFS info (device loop0): enabling ssd optimizations [ 75.248067][ T5288] FAULT_INJECTION: forcing a failure. [ 75.248067][ T5288] name failslab, interval 1, probability 0, space 0, times 0 [ 75.250876][ T5288] CPU: 0 PID: 5288 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 75.252200][ T5288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.253624][ T5288] Call trace: [ 75.254163][ T5288] dump_backtrace+0x0/0x43c [ 75.254830][ T5288] show_stack+0x2c/0x3c [ 75.255499][ T5288] __dump_stack+0x30/0x40 [ 75.256107][ T5288] dump_stack_lvl+0xf8/0x160 [ 75.256800][ T5288] dump_stack+0x1c/0x5c [ 75.257380][ T5288] should_fail+0x3c0/0x51c [ 75.257998][ T5288] __should_failslab+0xbc/0x10c [ 75.258801][ T5288] should_failslab+0x10/0x28 [ 75.259557][ T5288] slab_pre_alloc_hook+0x64/0xec [ 75.260364][ T5288] kmem_cache_alloc_trace+0x98/0x3fc [ 75.261190][ T5288] btrfs_delete_delayed_dir_index+0x220/0x550 [ 75.262106][ T5288] __btrfs_unlink_inode+0x34c/0xb00 [ 75.262818][ T5288] btrfs_unlink+0x108/0x258 [ 75.263528][ T5288] vfs_unlink+0x2e0/0x4f4 [ 75.264114][ T5288] do_unlinkat+0x31c/0x600 [ 75.264778][ T5288] __arm64_sys_unlinkat+0xe0/0xfc [ 75.265496][ T5288] invoke_syscall+0x98/0x2b8 [ 75.266152][ T5288] el0_svc_common+0x138/0x258 [ 75.266868][ T5288] do_el0_svc+0x58/0x14c [ 75.267484][ T5288] el0_svc+0x78/0x1e0 [ 75.268073][ T5288] el0t_64_sync_handler+0xcc/0xe4 [ 75.268932][ T5288] el0t_64_sync+0x1a0/0x1a4 [ 75.270521][ T5288] ------------[ cut here ]------------ [ 75.271446][ T5288] WARNING: CPU: 0 PID: 5288 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 75.272806][ T5288] Modules linked in: [ 75.273372][ T5288] CPU: 0 PID: 5288 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 75.274600][ T5288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.276076][ T5288] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.277163][ T5288] pc : __btrfs_unlink_inode+0x908/0xb00 [ 75.277969][ T5288] lr : __btrfs_unlink_inode+0x908/0xb00 [ 75.278739][ T5288] sp : ffff800021357a60 [ 75.279321][ T5288] x29: ffff800021357b10 x28: ffff0000c9eb6000 x27: ffff0000e3379c10 [ 75.280519][ T5288] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d2637f20 [ 75.281708][ T5288] x23: 1ffff0000426af54 x22: dfff800000000000 x21: ffff0000e79ebae0 [ 75.282817][ T5288] x20: ffff0000dd2e6c08 x19: 1fffe0001ba5cd81 x18: 0000000000000001 [ 75.283959][ T5288] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 75.285177][ T5288] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 75.286390][ T5288] x11: 0000000000000000 x10: 0000000000000000 x9 : b6bf8ae788c4ea00 [ 75.287544][ T5288] x8 : b6bf8ae788c4ea00 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.288700][ T5288] x5 : ffff800021357358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 75.289890][ T5288] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.291058][ T5288] Call trace: [ 75.291494][ T5288] __btrfs_unlink_inode+0x908/0xb00 [ 75.292209][ T5288] btrfs_unlink+0x108/0x258 [ 75.292855][ T5288] vfs_unlink+0x2e0/0x4f4 [ 75.293525][ T5288] do_unlinkat+0x31c/0x600 [ 75.294198][ T5288] __arm64_sys_unlinkat+0xe0/0xfc [ 75.294984][ T5288] invoke_syscall+0x98/0x2b8 [ 75.295655][ T5288] el0_svc_common+0x138/0x258 [ 75.296368][ T5288] do_el0_svc+0x58/0x14c [ 75.297025][ T5288] el0_svc+0x78/0x1e0 [ 75.297590][ T5288] el0t_64_sync_handler+0xcc/0xe4 [ 75.298318][ T5288] el0t_64_sync+0x1a0/0x1a4 [ 75.298969][ T5288] irq event stamp: 79652 [ 75.299551][ T5288] hardirqs last enabled at (79651): [] __up_console_sem+0xb4/0x100 [ 75.301083][ T5288] hardirqs last disabled at (79652): [] el1_dbg+0x24/0x80 [ 75.302312][ T5288] softirqs last enabled at (79632): [] handle_softirqs+0xa4c/0xbf0 [ 75.303658][ T5288] softirqs last disabled at (79607): [] __irq_exit_rcu+0x240/0x440 [ 75.304999][ T5288] ---[ end trace 1815704f9fa119d9 ]--- [ 75.309000][ T5288] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 75.310683][ T5288] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:15 executed programs: 19 [ 75.484938][ T5310] loop0: detected capacity change from 0 to 32768 [ 75.492229][ T5310] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.32 (5310) [ 75.496487][ T5310] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.497845][ T5310] BTRFS info (device loop0): using free space tree [ 75.498755][ T5310] BTRFS info (device loop0): has skinny extents [ 75.509783][ T5310] BTRFS info (device loop0): enabling ssd optimizations [ 75.513908][ T5310] FAULT_INJECTION: forcing a failure. [ 75.513908][ T5310] name failslab, interval 1, probability 0, space 0, times 0 [ 75.515807][ T5310] CPU: 1 PID: 5310 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 75.517010][ T5310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.518439][ T5310] Call trace: [ 75.518927][ T5310] dump_backtrace+0x0/0x43c [ 75.519636][ T5310] show_stack+0x2c/0x3c [ 75.520207][ T5310] __dump_stack+0x30/0x40 [ 75.520796][ T5310] dump_stack_lvl+0xf8/0x160 [ 75.521484][ T5310] dump_stack+0x1c/0x5c [ 75.522112][ T5310] should_fail+0x3c0/0x51c [ 75.522757][ T5310] __should_failslab+0xbc/0x10c [ 75.523398][ T5310] should_failslab+0x10/0x28 [ 75.524037][ T5310] slab_pre_alloc_hook+0x64/0xec [ 75.524750][ T5310] kmem_cache_alloc+0x94/0x3e4 [ 75.525423][ T5310] btrfs_alloc_path+0x5c/0x68 [ 75.526113][ T5310] __btrfs_unlink_inode+0x1d8/0xb00 [ 75.526852][ T5310] btrfs_unlink+0x108/0x258 [ 75.527486][ T5310] vfs_unlink+0x2e0/0x4f4 [ 75.528100][ T5310] do_unlinkat+0x31c/0x600 [ 75.528709][ T5310] __arm64_sys_unlinkat+0xe0/0xfc [ 75.529402][ T5310] invoke_syscall+0x98/0x2b8 [ 75.530024][ T5310] el0_svc_common+0x138/0x258 [ 75.530720][ T5310] do_el0_svc+0x58/0x14c [ 75.531295][ T5310] el0_svc+0x78/0x1e0 [ 75.531846][ T5310] el0t_64_sync_handler+0xcc/0xe4 [ 75.532581][ T5310] el0t_64_sync+0x1a0/0x1a4 [ 75.571143][ T4876] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4876) [ 75.679672][ T5332] loop0: detected capacity change from 0 to 32768 [ 75.688768][ T5332] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.690318][ T5332] BTRFS info (device loop0): using free space tree [ 75.691337][ T5332] BTRFS info (device loop0): has skinny extents [ 75.699042][ T5332] BTRFS info (device loop0): enabling ssd optimizations [ 75.703737][ T5332] FAULT_INJECTION: forcing a failure. [ 75.703737][ T5332] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 75.705656][ T5332] CPU: 1 PID: 5332 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 75.706887][ T5332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.708242][ T5332] Call trace: [ 75.708692][ T5332] dump_backtrace+0x0/0x43c [ 75.709348][ T5332] show_stack+0x2c/0x3c [ 75.709951][ T5332] __dump_stack+0x30/0x40 [ 75.710556][ T5332] dump_stack_lvl+0xf8/0x160 [ 75.711167][ T5332] dump_stack+0x1c/0x5c [ 75.711775][ T5332] should_fail+0x3c0/0x51c [ 75.712422][ T5332] should_fail_alloc_page+0x74/0xa8 [ 75.713236][ T5332] prepare_alloc_pages+0x160/0x460 [ 75.713937][ T5332] __alloc_pages+0x108/0x470 [ 75.714618][ T5332] alloc_pages+0x34c/0x5c0 [ 75.715257][ T5332] new_slab+0xe0/0x55c [ 75.715824][ T5332] ___slab_alloc+0x6c0/0xda8 [ 75.716493][ T5332] __slab_alloc+0x68/0xc0 [ 75.717114][ T5332] kmem_cache_alloc+0x2ac/0x3e4 [ 75.717811][ T5332] btrfs_alloc_path+0x5c/0x68 [ 75.718484][ T5332] __btrfs_unlink_inode+0x1d8/0xb00 [ 75.719190][ T5332] btrfs_unlink+0x108/0x258 [ 75.719890][ T5332] vfs_unlink+0x2e0/0x4f4 [ 75.720537][ T5332] do_unlinkat+0x31c/0x600 [ 75.721203][ T5332] __arm64_sys_unlinkat+0xe0/0xfc [ 75.721929][ T5332] invoke_syscall+0x98/0x2b8 [ 75.722578][ T5332] el0_svc_common+0x138/0x258 [ 75.723237][ T5332] do_el0_svc+0x58/0x14c [ 75.723842][ T5332] el0_svc+0x78/0x1e0 [ 75.724452][ T5332] el0t_64_sync_handler+0xcc/0xe4 [ 75.725134][ T5332] el0t_64_sync+0x1a0/0x1a4 [ 75.783690][ T4876] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4876) [ 75.869792][ T5354] loop0: detected capacity change from 0 to 32768 [ 75.952258][ T5354] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.953882][ T5354] BTRFS info (device loop0): using free space tree [ 75.954863][ T5354] BTRFS info (device loop0): has skinny extents [ 75.963139][ T5354] BTRFS info (device loop0): enabling ssd optimizations [ 75.967426][ T5354] FAULT_INJECTION: forcing a failure. [ 75.967426][ T5354] name failslab, interval 1, probability 0, space 0, times 0 [ 75.969371][ T5354] CPU: 0 PID: 5354 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 75.970703][ T5354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.972233][ T5354] Call trace: [ 75.972775][ T5354] dump_backtrace+0x0/0x43c [ 75.973440][ T5354] show_stack+0x2c/0x3c [ 75.974069][ T5354] __dump_stack+0x30/0x40 [ 75.974706][ T5354] dump_stack_lvl+0xf8/0x160 [ 75.975338][ T5354] dump_stack+0x1c/0x5c [ 75.975965][ T5354] should_fail+0x3c0/0x51c [ 75.976585][ T5354] __should_failslab+0xbc/0x10c [ 75.977325][ T5354] should_failslab+0x10/0x28 [ 75.978030][ T5354] slab_pre_alloc_hook+0x64/0xec [ 75.978747][ T5354] kmem_cache_alloc_trace+0x98/0x3fc [ 75.979538][ T5354] btrfs_delete_delayed_dir_index+0x220/0x550 [ 75.980376][ T5354] __btrfs_unlink_inode+0x34c/0xb00 [ 75.981114][ T5354] btrfs_unlink+0x108/0x258 [ 75.981754][ T5354] vfs_unlink+0x2e0/0x4f4 [ 75.982351][ T5354] do_unlinkat+0x31c/0x600 [ 75.982957][ T5354] __arm64_sys_unlinkat+0xe0/0xfc [ 75.983691][ T5354] invoke_syscall+0x98/0x2b8 [ 75.984366][ T5354] el0_svc_common+0x138/0x258 [ 75.984999][ T5354] do_el0_svc+0x58/0x14c [ 75.985607][ T5354] el0_svc+0x78/0x1e0 [ 75.986198][ T5354] el0t_64_sync_handler+0xcc/0xe4 [ 75.986924][ T5354] el0t_64_sync+0x1a0/0x1a4 [ 75.987854][ T5354] ------------[ cut here ]------------ [ 75.988831][ T5354] WARNING: CPU: 0 PID: 5354 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 75.990244][ T5354] Modules linked in: [ 75.990796][ T5354] CPU: 0 PID: 5354 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 75.991956][ T5354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.993649][ T5354] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.994878][ T5354] pc : __btrfs_unlink_inode+0x908/0xb00 [ 75.995741][ T5354] lr : __btrfs_unlink_inode+0x908/0xb00 [ 75.996600][ T5354] sp : ffff800021847a60 [ 75.997224][ T5354] x29: ffff800021847b10 x28: ffff0000ea338000 x27: ffff0000e7a2a010 [ 75.998338][ T5354] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ca75bc60 [ 75.999568][ T5354] x23: 1ffff00004308f54 x22: dfff800000000000 x21: ffff0000e7913110 [ 76.000806][ T5354] x20: ffff0000dd2e6688 x19: 1fffe0001ba5ccd1 x18: 0000000000000001 [ 76.001986][ T5354] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 76.003153][ T5354] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 76.004444][ T5354] x11: 0000000000000000 x10: 0000000000000000 x9 : cc56d0c8001c9200 [ 76.005751][ T5354] x8 : cc56d0c8001c9200 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.006970][ T5354] x5 : ffff800021847358 x4 : ffff80001426f5a0 x3 : ffff800008302274 [ 76.008142][ T5354] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.009317][ T5354] Call trace: [ 76.009765][ T5354] __btrfs_unlink_inode+0x908/0xb00 [ 76.010459][ T5354] btrfs_unlink+0x108/0x258 [ 76.011103][ T5354] vfs_unlink+0x2e0/0x4f4 [ 76.011722][ T5354] do_unlinkat+0x31c/0x600 [ 76.012362][ T5354] __arm64_sys_unlinkat+0xe0/0xfc [ 76.013075][ T5354] invoke_syscall+0x98/0x2b8 [ 76.013738][ T5354] el0_svc_common+0x138/0x258 [ 76.014437][ T5354] do_el0_svc+0x58/0x14c [ 76.015075][ T5354] el0_svc+0x78/0x1e0 [ 76.015655][ T5354] el0t_64_sync_handler+0xcc/0xe4 [ 76.016392][ T5354] el0t_64_sync+0x1a0/0x1a4 [ 76.017055][ T5354] irq event stamp: 79394 [ 76.017640][ T5354] hardirqs last enabled at (79393): [] __up_console_sem+0xb4/0x100 [ 76.018951][ T5354] hardirqs last disabled at (79394): [] el1_dbg+0x24/0x80 [ 76.020190][ T5354] softirqs last enabled at (79374): [] handle_softirqs+0xa4c/0xbf0 [ 76.021554][ T5354] softirqs last disabled at (79339): [] __irq_exit_rcu+0x240/0x440 [ 76.022901][ T5354] ---[ end trace 1815704f9fa119da ]--- [ 76.025098][ T5354] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 76.026721][ T5354] BTRFS info (device loop0): forced readonly [ 76.160553][ T5377] loop0: detected capacity change from 0 to 32768 [ 76.240941][ T5377] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.35 (5377) [ 76.243922][ T5377] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.245437][ T5377] BTRFS info (device loop0): using free space tree [ 76.246769][ T5377] BTRFS info (device loop0): has skinny extents [ 76.254587][ T5377] BTRFS info (device loop0): enabling ssd optimizations [ 76.262103][ T5377] FAULT_INJECTION: forcing a failure. [ 76.262103][ T5377] name failslab, interval 1, probability 0, space 0, times 0 [ 76.264109][ T5377] CPU: 0 PID: 5377 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 76.265345][ T5377] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.266711][ T5377] Call trace: [ 76.267180][ T5377] dump_backtrace+0x0/0x43c [ 76.267841][ T5377] show_stack+0x2c/0x3c [ 76.268438][ T5377] __dump_stack+0x30/0x40 [ 76.269067][ T5377] dump_stack_lvl+0xf8/0x160 [ 76.269720][ T5377] dump_stack+0x1c/0x5c [ 76.270316][ T5377] should_fail+0x3c0/0x51c [ 76.270945][ T5377] __should_failslab+0xbc/0x10c [ 76.271638][ T5377] should_failslab+0x10/0x28 [ 76.272271][ T5377] slab_pre_alloc_hook+0x64/0xec [ 76.272915][ T5377] kmem_cache_alloc_trace+0x98/0x3fc [ 76.273688][ T5377] btrfs_delete_delayed_dir_index+0x220/0x550 [ 76.274517][ T5377] __btrfs_unlink_inode+0x34c/0xb00 [ 76.275234][ T5377] btrfs_unlink+0x108/0x258 [ 76.275884][ T5377] vfs_unlink+0x2e0/0x4f4 [ 76.276523][ T5377] do_unlinkat+0x31c/0x600 [ 76.277255][ T5377] __arm64_sys_unlinkat+0xe0/0xfc [ 76.277972][ T5377] invoke_syscall+0x98/0x2b8 [ 76.278639][ T5377] el0_svc_common+0x138/0x258 [ 76.279307][ T5377] do_el0_svc+0x58/0x14c [ 76.279912][ T5377] el0_svc+0x78/0x1e0 [ 76.280470][ T5377] el0t_64_sync_handler+0xcc/0xe4 [ 76.281182][ T5377] el0t_64_sync+0x1a0/0x1a4 [ 76.283526][ T5377] ------------[ cut here ]------------ [ 76.284506][ T5377] WARNING: CPU: 0 PID: 5377 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 76.285811][ T5377] Modules linked in: [ 76.286415][ T5377] CPU: 0 PID: 5377 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 76.287614][ T5377] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.288990][ T5377] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.290123][ T5377] pc : __btrfs_unlink_inode+0x908/0xb00 [ 76.290993][ T5377] lr : __btrfs_unlink_inode+0x908/0xb00 [ 76.291822][ T5377] sp : ffff800021847a60 [ 76.292415][ T5377] x29: ffff800021847b10 x28: ffff0000d1576000 x27: ffff0000e3378c10 [ 76.293645][ T5377] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000dc19f000 [ 76.294811][ T5377] x23: 1ffff00004308f54 x22: dfff800000000000 x21: ffff0000e79eebf0 [ 76.295970][ T5377] x20: ffff0000dd2e6cb8 x19: 1fffe0001ba5cd97 x18: 0000000000000001 [ 76.297183][ T5377] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 76.298342][ T5377] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 76.299491][ T5377] x11: 0000000000000000 x10: 0000000000000000 x9 : 55fdd1716c677900 [ 76.300766][ T5377] x8 : 55fdd1716c677900 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.302010][ T5377] x5 : ffff800021847358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 76.303267][ T5377] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.304417][ T5377] Call trace: [ 76.304889][ T5377] __btrfs_unlink_inode+0x908/0xb00 [ 76.305644][ T5377] btrfs_unlink+0x108/0x258 [ 76.306296][ T5377] vfs_unlink+0x2e0/0x4f4 [ 76.306934][ T5377] do_unlinkat+0x31c/0x600 [ 76.307591][ T5377] __arm64_sys_unlinkat+0xe0/0xfc [ 76.308324][ T5377] invoke_syscall+0x98/0x2b8 [ 76.309053][ T5377] el0_svc_common+0x138/0x258 [ 76.309752][ T5377] do_el0_svc+0x58/0x14c [ 76.310348][ T5377] el0_svc+0x78/0x1e0 [ 76.310880][ T5377] el0t_64_sync_handler+0xcc/0xe4 [ 76.311640][ T5377] el0t_64_sync+0x1a0/0x1a4 [ 76.312261][ T5377] irq event stamp: 79056 [ 76.312861][ T5377] hardirqs last enabled at (79055): [] __up_console_sem+0xb4/0x100 [ 76.314305][ T5377] hardirqs last disabled at (79056): [] el1_dbg+0x24/0x80 [ 76.315505][ T5377] softirqs last enabled at (79036): [] handle_softirqs+0xa4c/0xbf0 [ 76.316829][ T5377] softirqs last disabled at (78995): [] __irq_exit_rcu+0x240/0x440 [ 76.318236][ T5377] ---[ end trace 1815704f9fa119db ]--- [ 76.320997][ T5377] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 76.322313][ T5377] BTRFS info (device loop0): forced readonly [ 76.455530][ T5399] loop0: detected capacity change from 0 to 32768 [ 76.463031][ T5399] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.36 (5399) [ 76.466967][ T5399] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.468343][ T5399] BTRFS info (device loop0): using free space tree [ 76.469320][ T5399] BTRFS info (device loop0): has skinny extents [ 76.476841][ T5399] BTRFS info (device loop0): enabling ssd optimizations [ 76.481300][ T5399] FAULT_INJECTION: forcing a failure. [ 76.481300][ T5399] name failslab, interval 1, probability 0, space 0, times 0 [ 76.483283][ T5399] CPU: 1 PID: 5399 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 76.484573][ T5399] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.486020][ T5399] Call trace: [ 76.486562][ T5399] dump_backtrace+0x0/0x43c [ 76.487278][ T5399] show_stack+0x2c/0x3c [ 76.487924][ T5399] __dump_stack+0x30/0x40 [ 76.488537][ T5399] dump_stack_lvl+0xf8/0x160 [ 76.489212][ T5399] dump_stack+0x1c/0x5c [ 76.489821][ T5399] should_fail+0x3c0/0x51c [ 76.490509][ T5399] __should_failslab+0xbc/0x10c [ 76.491159][ T5399] should_failslab+0x10/0x28 [ 76.491805][ T5399] slab_pre_alloc_hook+0x64/0xec [ 76.492470][ T5399] kmem_cache_alloc_trace+0x98/0x3fc [ 76.493247][ T5399] btrfs_delete_delayed_dir_index+0x220/0x550 [ 76.494133][ T5399] __btrfs_unlink_inode+0x34c/0xb00 [ 76.494863][ T5399] btrfs_unlink+0x108/0x258 [ 76.495518][ T5399] vfs_unlink+0x2e0/0x4f4 [ 76.496180][ T5399] do_unlinkat+0x31c/0x600 [ 76.496800][ T5399] __arm64_sys_unlinkat+0xe0/0xfc [ 76.497509][ T5399] invoke_syscall+0x98/0x2b8 [ 76.498201][ T5399] el0_svc_common+0x138/0x258 [ 76.498873][ T5399] do_el0_svc+0x58/0x14c [ 76.499554][ T5399] el0_svc+0x78/0x1e0 [ 76.500117][ T5399] el0t_64_sync_handler+0xcc/0xe4 [ 76.500845][ T5399] el0t_64_sync+0x1a0/0x1a4 [ 76.503928][ T5399] ------------[ cut here ]------------ [ 76.504820][ T5399] WARNING: CPU: 1 PID: 5399 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 76.506190][ T5399] Modules linked in: [ 76.506783][ T5399] CPU: 1 PID: 5399 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 76.507965][ T5399] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.509434][ T5399] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.510596][ T5399] pc : __btrfs_unlink_inode+0x908/0xb00 [ 76.511439][ T5399] lr : __btrfs_unlink_inode+0x908/0xb00 [ 76.512228][ T5399] sp : ffff800021357a60 [ 76.512812][ T5399] x29: ffff800021357b10 x28: ffff0000d5790000 x27: ffff0000e7a29010 [ 76.513909][ T5399] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c8393580 [ 76.515097][ T5399] x23: 1ffff0000426af54 x22: dfff800000000000 x21: ffff0000e79144b0 [ 76.516258][ T5399] x20: ffff0000de8bf738 x19: 1fffe0001bd17ee7 x18: 0000000000000001 [ 76.517414][ T5399] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 76.518523][ T5399] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 76.519645][ T5399] x11: 0000000000000000 x10: 0000000000000000 x9 : ac9c04f389901600 [ 76.520819][ T5399] x8 : ac9c04f389901600 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.521998][ T5399] x5 : ffff800021357358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 76.523279][ T5399] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.524449][ T5399] Call trace: [ 76.524928][ T5399] __btrfs_unlink_inode+0x908/0xb00 [ 76.525627][ T5399] btrfs_unlink+0x108/0x258 [ 76.526283][ T5399] vfs_unlink+0x2e0/0x4f4 [ 76.526874][ T5399] do_unlinkat+0x31c/0x600 [ 76.527490][ T5399] __arm64_sys_unlinkat+0xe0/0xfc [ 76.528216][ T5399] invoke_syscall+0x98/0x2b8 [ 76.528884][ T5399] el0_svc_common+0x138/0x258 [ 76.529475][ T5399] do_el0_svc+0x58/0x14c [ 76.530100][ T5399] el0_svc+0x78/0x1e0 [ 76.530693][ T5399] el0t_64_sync_handler+0xcc/0xe4 [ 76.531379][ T5399] el0t_64_sync+0x1a0/0x1a4 [ 76.532042][ T5399] irq event stamp: 78934 [ 76.532587][ T5399] hardirqs last enabled at (78933): [] __up_console_sem+0xb4/0x100 [ 76.533910][ T5399] hardirqs last disabled at (78934): [] el1_dbg+0x24/0x80 [ 76.535172][ T5399] softirqs last enabled at (78914): [] handle_softirqs+0xa4c/0xbf0 [ 76.536523][ T5399] softirqs last disabled at (78853): [] __irq_exit_rcu+0x240/0x440 [ 76.537873][ T5399] ---[ end trace 1815704f9fa119dc ]--- [ 76.538874][ T5399] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 76.540345][ T5399] BTRFS info (device loop0): forced readonly [ 76.672548][ T5421] loop0: detected capacity change from 0 to 32768 [ 76.680121][ T5421] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.37 (5421) [ 76.684505][ T5421] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.685908][ T5421] BTRFS info (device loop0): using free space tree [ 76.687047][ T5421] BTRFS info (device loop0): has skinny extents [ 76.695626][ T5421] BTRFS info (device loop0): enabling ssd optimizations [ 76.699768][ T5421] FAULT_INJECTION: forcing a failure. [ 76.699768][ T5421] name failslab, interval 1, probability 0, space 0, times 0 [ 76.701762][ T5421] CPU: 0 PID: 5421 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 76.703083][ T5421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.704608][ T5421] Call trace: [ 76.705120][ T5421] dump_backtrace+0x0/0x43c [ 76.705857][ T5421] show_stack+0x2c/0x3c [ 76.706538][ T5421] __dump_stack+0x30/0x40 [ 76.707192][ T5421] dump_stack_lvl+0xf8/0x160 [ 76.707881][ T5421] dump_stack+0x1c/0x5c [ 76.708500][ T5421] should_fail+0x3c0/0x51c [ 76.709158][ T5421] __should_failslab+0xbc/0x10c [ 76.709900][ T5421] should_failslab+0x10/0x28 [ 76.710562][ T5421] slab_pre_alloc_hook+0x64/0xec [ 76.711298][ T5421] kmem_cache_alloc_trace+0x98/0x3fc [ 76.712054][ T5421] btrfs_delete_delayed_dir_index+0x220/0x550 [ 76.712940][ T5421] __btrfs_unlink_inode+0x34c/0xb00 [ 76.713665][ T5421] btrfs_unlink+0x108/0x258 [ 76.714346][ T5421] vfs_unlink+0x2e0/0x4f4 [ 76.715083][ T5421] do_unlinkat+0x31c/0x600 [ 76.715756][ T5421] __arm64_sys_unlinkat+0xe0/0xfc [ 76.716538][ T5421] invoke_syscall+0x98/0x2b8 [ 76.717240][ T5421] el0_svc_common+0x138/0x258 [ 76.717926][ T5421] do_el0_svc+0x58/0x14c [ 76.718649][ T5421] el0_svc+0x78/0x1e0 [ 76.719213][ T5421] el0t_64_sync_handler+0xcc/0xe4 [ 76.719868][ T5421] el0t_64_sync+0x1a0/0x1a4 [ 76.721177][ T5421] ------------[ cut here ]------------ [ 76.722092][ T5421] WARNING: CPU: 0 PID: 5421 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 76.723483][ T5421] Modules linked in: [ 76.724060][ T5421] CPU: 0 PID: 5421 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 76.725451][ T5421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.727023][ T5421] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.728178][ T5421] pc : __btrfs_unlink_inode+0x908/0xb00 [ 76.728993][ T5421] lr : __btrfs_unlink_inode+0x908/0xb00 [ 76.729860][ T5421] sp : ffff800021ba7a60 [ 76.730470][ T5421] x29: ffff800021ba7b10 x28: ffff0000d6d88000 x27: ffff0000e337a010 [ 76.731571][ T5421] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cb058420 [ 76.732702][ T5421] x23: 1ffff00004374f54 x22: dfff800000000000 x21: ffff0000e79a5850 [ 76.733864][ T5421] x20: ffff0000dd2e6e18 x19: 1fffe0001ba5cdc3 x18: 0000000000000001 [ 76.735058][ T5421] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 76.736263][ T5421] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 76.737392][ T5421] x11: 0000000000000000 x10: 0000000000000000 x9 : 27834e5b5214de00 [ 76.738511][ T5421] x8 : 27834e5b5214de00 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.739724][ T5421] x5 : ffff800021ba7358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 76.740905][ T5421] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.742159][ T5421] Call trace: [ 76.742594][ T5421] __btrfs_unlink_inode+0x908/0xb00 [ 76.743378][ T5421] btrfs_unlink+0x108/0x258 [ 76.744073][ T5421] vfs_unlink+0x2e0/0x4f4 [ 76.744700][ T5421] do_unlinkat+0x31c/0x600 [ 76.745411][ T5421] __arm64_sys_unlinkat+0xe0/0xfc [ 76.746140][ T5421] invoke_syscall+0x98/0x2b8 [ 76.746842][ T5421] el0_svc_common+0x138/0x258 [ 76.747555][ T5421] do_el0_svc+0x58/0x14c [ 76.748216][ T5421] el0_svc+0x78/0x1e0 [ 76.748748][ T5421] el0t_64_sync_handler+0xcc/0xe4 [ 76.749515][ T5421] el0t_64_sync+0x1a0/0x1a4 [ 76.750114][ T5421] irq event stamp: 79258 [ 76.750669][ T5421] hardirqs last enabled at (79257): [] __up_console_sem+0xb4/0x100 [ 76.752016][ T5421] hardirqs last disabled at (79258): [] el1_dbg+0x24/0x80 [ 76.753317][ T5421] softirqs last enabled at (79238): [] handle_softirqs+0xa4c/0xbf0 [ 76.754698][ T5421] softirqs last disabled at (79163): [] __irq_exit_rcu+0x240/0x440 [ 76.755976][ T5421] ---[ end trace 1815704f9fa119dd ]--- [ 76.757157][ T5421] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 76.758551][ T5421] BTRFS info (device loop0): forced readonly [ 76.891128][ T5443] loop0: detected capacity change from 0 to 32768 [ 76.940915][ T5443] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.38 (5443) [ 76.994831][ T5443] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.996223][ T5443] BTRFS info (device loop0): using free space tree [ 76.997256][ T5443] BTRFS info (device loop0): has skinny extents [ 77.020507][ T5443] BTRFS info (device loop0): enabling ssd optimizations [ 77.024973][ T5443] FAULT_INJECTION: forcing a failure. [ 77.024973][ T5443] name failslab, interval 1, probability 0, space 0, times 0 [ 77.026920][ T5443] CPU: 1 PID: 5443 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 77.028127][ T5443] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.029528][ T5443] Call trace: [ 77.029988][ T5443] dump_backtrace+0x0/0x43c [ 77.030620][ T5443] show_stack+0x2c/0x3c [ 77.031240][ T5443] __dump_stack+0x30/0x40 [ 77.031866][ T5443] dump_stack_lvl+0xf8/0x160 [ 77.032568][ T5443] dump_stack+0x1c/0x5c [ 77.033189][ T5443] should_fail+0x3c0/0x51c [ 77.033799][ T5443] __should_failslab+0xbc/0x10c [ 77.034504][ T5443] should_failslab+0x10/0x28 [ 77.035132][ T5443] slab_pre_alloc_hook+0x64/0xec [ 77.035791][ T5443] kmem_cache_alloc+0x94/0x3e4 [ 77.036462][ T5443] btrfs_alloc_path+0x5c/0x68 [ 77.037157][ T5443] __btrfs_unlink_inode+0x1d8/0xb00 [ 77.037964][ T5443] btrfs_unlink+0x108/0x258 [ 77.038596][ T5443] vfs_unlink+0x2e0/0x4f4 [ 77.039237][ T5443] do_unlinkat+0x31c/0x600 [ 77.039822][ T5443] __arm64_sys_unlinkat+0xe0/0xfc [ 77.040592][ T5443] invoke_syscall+0x98/0x2b8 [ 77.041239][ T5443] el0_svc_common+0x138/0x258 [ 77.041908][ T5443] do_el0_svc+0x58/0x14c [ 77.042430][ T5443] el0_svc+0x78/0x1e0 [ 77.042964][ T5443] el0t_64_sync_handler+0xcc/0xe4 [ 77.043602][ T5443] el0t_64_sync+0x1a0/0x1a4 [ 77.182712][ T5465] loop0: detected capacity change from 0 to 32768 [ 77.260890][ T5465] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.39 (5465) [ 77.302706][ T5465] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.304215][ T5465] BTRFS info (device loop0): using free space tree [ 77.305145][ T5465] BTRFS info (device loop0): has skinny extents [ 77.313542][ T5465] BTRFS info (device loop0): enabling ssd optimizations [ 77.317494][ T5465] FAULT_INJECTION: forcing a failure. [ 77.317494][ T5465] name failslab, interval 1, probability 0, space 0, times 0 [ 77.319371][ T5465] CPU: 0 PID: 5465 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 77.320638][ T5465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.322167][ T5465] Call trace: [ 77.322660][ T5465] dump_backtrace+0x0/0x43c [ 77.323329][ T5465] show_stack+0x2c/0x3c [ 77.323878][ T5465] __dump_stack+0x30/0x40 [ 77.324502][ T5465] dump_stack_lvl+0xf8/0x160 [ 77.325177][ T5465] dump_stack+0x1c/0x5c [ 77.325721][ T5465] should_fail+0x3c0/0x51c [ 77.326355][ T5465] __should_failslab+0xbc/0x10c [ 77.327046][ T5465] should_failslab+0x10/0x28 [ 77.327748][ T5465] slab_pre_alloc_hook+0x64/0xec [ 77.328441][ T5465] kmem_cache_alloc+0x94/0x3e4 [ 77.329142][ T5465] btrfs_alloc_path+0x5c/0x68 [ 77.329792][ T5465] __btrfs_unlink_inode+0x1d8/0xb00 [ 77.330539][ T5465] btrfs_unlink+0x108/0x258 [ 77.331180][ T5465] vfs_unlink+0x2e0/0x4f4 [ 77.331778][ T5465] do_unlinkat+0x31c/0x600 [ 77.332416][ T5465] __arm64_sys_unlinkat+0xe0/0xfc [ 77.333195][ T5465] invoke_syscall+0x98/0x2b8 [ 77.333818][ T5465] el0_svc_common+0x138/0x258 [ 77.334462][ T5465] do_el0_svc+0x58/0x14c [ 77.335044][ T5465] el0_svc+0x78/0x1e0 [ 77.335626][ T5465] el0t_64_sync_handler+0xcc/0xe4 [ 77.336364][ T5465] el0t_64_sync+0x1a0/0x1a4 [ 77.391345][ T4876] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4876) [ 77.481567][ T5486] loop0: detected capacity change from 0 to 32768 [ 77.485549][ T5486] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.486963][ T5486] BTRFS info (device loop0): using free space tree [ 77.487964][ T5486] BTRFS info (device loop0): has skinny extents [ 77.499029][ T5486] BTRFS info (device loop0): enabling ssd optimizations [ 77.503229][ T5486] FAULT_INJECTION: forcing a failure. [ 77.503229][ T5486] name failslab, interval 1, probability 0, space 0, times 0 [ 77.505265][ T5486] CPU: 1 PID: 5486 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 77.506508][ T5486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.508053][ T5486] Call trace: [ 77.508487][ T5486] dump_backtrace+0x0/0x43c [ 77.509163][ T5486] show_stack+0x2c/0x3c [ 77.509768][ T5486] __dump_stack+0x30/0x40 [ 77.510419][ T5486] dump_stack_lvl+0xf8/0x160 [ 77.511084][ T5486] dump_stack+0x1c/0x5c [ 77.511664][ T5486] should_fail+0x3c0/0x51c [ 77.512301][ T5486] __should_failslab+0xbc/0x10c [ 77.512958][ T5486] should_failslab+0x10/0x28 [ 77.513605][ T5486] slab_pre_alloc_hook+0x64/0xec [ 77.514303][ T5486] kmem_cache_alloc+0x94/0x3e4 [ 77.514980][ T5486] btrfs_alloc_path+0x5c/0x68 [ 77.515638][ T5486] __btrfs_unlink_inode+0x1d8/0xb00 [ 77.516408][ T5486] btrfs_unlink+0x108/0x258 [ 77.517079][ T5486] vfs_unlink+0x2e0/0x4f4 [ 77.517683][ T5486] do_unlinkat+0x31c/0x600 [ 77.518320][ T5486] __arm64_sys_unlinkat+0xe0/0xfc [ 77.519026][ T5486] invoke_syscall+0x98/0x2b8 [ 77.519702][ T5486] el0_svc_common+0x138/0x258 [ 77.520400][ T5486] do_el0_svc+0x58/0x14c [ 77.520954][ T5486] el0_svc+0x78/0x1e0 [ 77.521581][ T5486] el0t_64_sync_handler+0xcc/0xe4 [ 77.522357][ T5486] el0t_64_sync+0x1a0/0x1a4 [ 77.692358][ T5508] loop0: detected capacity change from 0 to 32768 [ 77.784476][ T5508] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.41 (5508) [ 77.791761][ T5508] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.794029][ T5508] BTRFS info (device loop0): using free space tree [ 77.795059][ T5508] BTRFS info (device loop0): has skinny extents [ 77.803134][ T5508] BTRFS info (device loop0): enabling ssd optimizations [ 77.807084][ T5508] FAULT_INJECTION: forcing a failure. [ 77.807084][ T5508] name failslab, interval 1, probability 0, space 0, times 0 [ 77.809008][ T5508] CPU: 0 PID: 5508 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 77.810289][ T5508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.811771][ T5508] Call trace: [ 77.812312][ T5508] dump_backtrace+0x0/0x43c [ 77.812988][ T5508] show_stack+0x2c/0x3c [ 77.813579][ T5508] __dump_stack+0x30/0x40 [ 77.814156][ T5508] dump_stack_lvl+0xf8/0x160 [ 77.814773][ T5508] dump_stack+0x1c/0x5c [ 77.815357][ T5508] should_fail+0x3c0/0x51c [ 77.815993][ T5508] __should_failslab+0xbc/0x10c [ 77.816711][ T5508] should_failslab+0x10/0x28 [ 77.817389][ T5508] slab_pre_alloc_hook+0x64/0xec [ 77.818079][ T5508] kmem_cache_alloc_trace+0x98/0x3fc [ 77.818826][ T5508] btrfs_delete_delayed_dir_index+0x220/0x550 [ 77.819690][ T5508] __btrfs_unlink_inode+0x34c/0xb00 [ 77.820413][ T5508] btrfs_unlink+0x108/0x258 [ 77.821068][ T5508] vfs_unlink+0x2e0/0x4f4 [ 77.821690][ T5508] do_unlinkat+0x31c/0x600 [ 77.822330][ T5508] __arm64_sys_unlinkat+0xe0/0xfc [ 77.823066][ T5508] invoke_syscall+0x98/0x2b8 [ 77.823831][ T5508] el0_svc_common+0x138/0x258 [ 77.824544][ T5508] do_el0_svc+0x58/0x14c [ 77.825164][ T5508] el0_svc+0x78/0x1e0 [ 77.825767][ T5508] el0t_64_sync_handler+0xcc/0xe4 [ 77.826492][ T5508] el0t_64_sync+0x1a0/0x1a4 [ 77.827631][ T5508] ------------[ cut here ]------------ [ 77.828624][ T5508] WARNING: CPU: 0 PID: 5508 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 77.830059][ T5508] Modules linked in: [ 77.830584][ T5508] CPU: 0 PID: 5508 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 77.831856][ T5508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.833381][ T5508] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.834489][ T5508] pc : __btrfs_unlink_inode+0x908/0xb00 [ 77.835254][ T5508] lr : __btrfs_unlink_inode+0x908/0xb00 [ 77.836024][ T5508] sp : ffff800021ff7a60 [ 77.836656][ T5508] x29: ffff800021ff7b10 x28: ffff0000da962000 x27: ffff0000e3378010 [ 77.837735][ T5508] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ecdf84d0 [ 77.838895][ T5508] x23: 1ffff000043fef54 x22: dfff800000000000 x21: ffff0000e79a13a0 [ 77.840020][ T5508] x20: ffff0000dd2e6268 x19: 1fffe0001ba5cc4d x18: 0000000000000001 [ 77.841122][ T5508] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 77.842237][ T5508] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 77.843431][ T5508] x11: 0000000000000000 x10: 0000000000000000 x9 : 73ed85a850a1cc00 [ 77.844661][ T5508] x8 : 73ed85a850a1cc00 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.845761][ T5508] x5 : ffff800021ff7358 x4 : ffff80001426f5a0 x3 : ffff800008302274 [ 77.846995][ T5508] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.848153][ T5508] Call trace: [ 77.848589][ T5508] __btrfs_unlink_inode+0x908/0xb00 [ 77.849345][ T5508] btrfs_unlink+0x108/0x258 [ 77.850002][ T5508] vfs_unlink+0x2e0/0x4f4 [ 77.850675][ T5508] do_unlinkat+0x31c/0x600 [ 77.851318][ T5508] __arm64_sys_unlinkat+0xe0/0xfc [ 77.852028][ T5508] invoke_syscall+0x98/0x2b8 [ 77.852719][ T5508] el0_svc_common+0x138/0x258 [ 77.853359][ T5508] do_el0_svc+0x58/0x14c [ 77.853966][ T5508] el0_svc+0x78/0x1e0 [ 77.854560][ T5508] el0t_64_sync_handler+0xcc/0xe4 [ 77.855362][ T5508] el0t_64_sync+0x1a0/0x1a4 [ 77.856031][ T5508] irq event stamp: 78804 [ 77.856628][ T5508] hardirqs last enabled at (78803): [] __up_console_sem+0xb4/0x100 [ 77.858029][ T5508] hardirqs last disabled at (78804): [] el1_dbg+0x24/0x80 [ 77.859333][ T5508] softirqs last enabled at (78784): [] handle_softirqs+0xa4c/0xbf0 [ 77.860651][ T5508] softirqs last disabled at (78735): [] __irq_exit_rcu+0x240/0x440 [ 77.862085][ T5508] ---[ end trace 1815704f9fa119de ]--- [ 77.863364][ T5508] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 77.864841][ T5508] BTRFS info (device loop0): forced readonly [ 78.002251][ T5530] loop0: detected capacity change from 0 to 32768 [ 78.030852][ T5530] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.42 (5530) [ 78.081322][ T5530] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.082742][ T5530] BTRFS info (device loop0): using free space tree [ 78.083700][ T5530] BTRFS info (device loop0): has skinny extents [ 78.094918][ T5530] BTRFS info (device loop0): enabling ssd optimizations [ 78.098787][ T5530] FAULT_INJECTION: forcing a failure. [ 78.098787][ T5530] name failslab, interval 1, probability 0, space 0, times 0 [ 78.110427][ T5530] CPU: 1 PID: 5530 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 78.111802][ T5530] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.113149][ T5530] Call trace: [ 78.113588][ T5530] dump_backtrace+0x0/0x43c [ 78.114209][ T5530] show_stack+0x2c/0x3c [ 78.114800][ T5530] __dump_stack+0x30/0x40 [ 78.115423][ T5530] dump_stack_lvl+0xf8/0x160 [ 78.116071][ T5530] dump_stack+0x1c/0x5c [ 78.116650][ T5530] should_fail+0x3c0/0x51c [ 78.117276][ T5530] __should_failslab+0xbc/0x10c [ 78.118047][ T5530] should_failslab+0x10/0x28 [ 78.118736][ T5530] slab_pre_alloc_hook+0x64/0xec [ 78.119464][ T5530] kmem_cache_alloc_trace+0x98/0x3fc [ 78.120366][ T5530] btrfs_delete_delayed_dir_index+0x220/0x550 [ 78.121421][ T5530] __btrfs_unlink_inode+0x34c/0xb00 [ 78.122255][ T5530] btrfs_unlink+0x108/0x258 [ 78.122907][ T5530] vfs_unlink+0x2e0/0x4f4 [ 78.123624][ T5530] do_unlinkat+0x31c/0x600 [ 78.124323][ T5530] __arm64_sys_unlinkat+0xe0/0xfc [ 78.125080][ T5530] invoke_syscall+0x98/0x2b8 [ 78.125740][ T5530] el0_svc_common+0x138/0x258 [ 78.126389][ T5530] do_el0_svc+0x58/0x14c [ 78.127091][ T5530] el0_svc+0x78/0x1e0 [ 78.127673][ T5530] el0t_64_sync_handler+0xcc/0xe4 [ 78.128434][ T5530] el0t_64_sync+0x1a0/0x1a4 [ 78.130880][ T5530] ------------[ cut here ]------------ [ 78.131857][ T5530] WARNING: CPU: 1 PID: 5530 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 78.133243][ T5530] Modules linked in: [ 78.133812][ T5530] CPU: 1 PID: 5530 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 78.134966][ T5530] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.136382][ T5530] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.137452][ T5530] pc : __btrfs_unlink_inode+0x908/0xb00 [ 78.138258][ T5530] lr : __btrfs_unlink_inode+0x908/0xb00 [ 78.139007][ T5530] sp : ffff800022127a60 [ 78.139548][ T5530] x29: ffff800022127b10 x28: ffff0000db466000 x27: ffff0000e7a28410 [ 78.140755][ T5530] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d1eddf20 [ 78.141858][ T5530] x23: 1ffff00004424f54 x22: dfff800000000000 x21: ffff0000e79b3ae0 [ 78.142993][ T5530] x20: ffff0000dea7b1b8 x19: 1fffe0001bd4f637 x18: 0000000000000001 [ 78.144097][ T5530] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 78.145266][ T5530] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 78.146475][ T5530] x11: 0000000000000000 x10: 0000000000000000 x9 : 0f3f09fc35671700 [ 78.147665][ T5530] x8 : 0f3f09fc35671700 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.148849][ T5530] x5 : ffff800022127358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 78.150089][ T5530] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.151240][ T5530] Call trace: [ 78.151726][ T5530] __btrfs_unlink_inode+0x908/0xb00 [ 78.152491][ T5530] btrfs_unlink+0x108/0x258 [ 78.153121][ T5530] vfs_unlink+0x2e0/0x4f4 [ 78.153738][ T5530] do_unlinkat+0x31c/0x600 [ 78.154389][ T5530] __arm64_sys_unlinkat+0xe0/0xfc [ 78.155104][ T5530] invoke_syscall+0x98/0x2b8 [ 78.155809][ T5530] el0_svc_common+0x138/0x258 [ 78.156489][ T5530] do_el0_svc+0x58/0x14c [ 78.157097][ T5530] el0_svc+0x78/0x1e0 [ 78.157707][ T5530] el0t_64_sync_handler+0xcc/0xe4 [ 78.158472][ T5530] el0t_64_sync+0x1a0/0x1a4 [ 78.159145][ T5530] irq event stamp: 79158 [ 78.159802][ T5530] hardirqs last enabled at (79157): [] __up_console_sem+0xb4/0x100 [ 78.161248][ T5530] hardirqs last disabled at (79158): [] el1_dbg+0x24/0x80 [ 78.162519][ T5530] softirqs last enabled at (79138): [] handle_softirqs+0xa4c/0xbf0 [ 78.163836][ T5530] softirqs last disabled at (79105): [] __irq_exit_rcu+0x240/0x440 [ 78.165187][ T5530] ---[ end trace 1815704f9fa119df ]--- [ 78.168962][ T5530] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 78.170362][ T5530] BTRFS info (device loop0): forced readonly [ 78.377379][ T5552] loop0: detected capacity change from 0 to 32768 [ 78.414782][ T5552] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.43 (5552) [ 78.417844][ T5552] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.419263][ T5552] BTRFS info (device loop0): using free space tree [ 78.420621][ T5552] BTRFS info (device loop0): has skinny extents [ 78.429044][ T5552] BTRFS info (device loop0): enabling ssd optimizations [ 78.434363][ T5552] FAULT_INJECTION: forcing a failure. [ 78.434363][ T5552] name failslab, interval 1, probability 0, space 0, times 0 [ 78.436430][ T5552] CPU: 1 PID: 5552 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 78.437777][ T5552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.439283][ T5552] Call trace: [ 78.439771][ T5552] dump_backtrace+0x0/0x43c [ 78.440478][ T5552] show_stack+0x2c/0x3c [ 78.441067][ T5552] __dump_stack+0x30/0x40 [ 78.441750][ T5552] dump_stack_lvl+0xf8/0x160 [ 78.442409][ T5552] dump_stack+0x1c/0x5c [ 78.443038][ T5552] should_fail+0x3c0/0x51c [ 78.443712][ T5552] __should_failslab+0xbc/0x10c [ 78.444546][ T5552] should_failslab+0x10/0x28 [ 78.445223][ T5552] slab_pre_alloc_hook+0x64/0xec [ 78.445954][ T5552] kmem_cache_alloc_trace+0x98/0x3fc [ 78.446721][ T5552] btrfs_delete_delayed_dir_index+0x220/0x550 [ 78.447565][ T5552] __btrfs_unlink_inode+0x34c/0xb00 [ 78.448406][ T5552] btrfs_unlink+0x108/0x258 [ 78.449070][ T5552] vfs_unlink+0x2e0/0x4f4 [ 78.449688][ T5552] do_unlinkat+0x31c/0x600 [ 78.450299][ T5552] __arm64_sys_unlinkat+0xe0/0xfc [ 78.451044][ T5552] invoke_syscall+0x98/0x2b8 [ 78.451720][ T5552] el0_svc_common+0x138/0x258 [ 78.452457][ T5552] do_el0_svc+0x58/0x14c [ 78.453153][ T5552] el0_svc+0x78/0x1e0 [ 78.453794][ T5552] el0t_64_sync_handler+0xcc/0xe4 [ 78.454515][ T5552] el0t_64_sync+0x1a0/0x1a4 [ 78.456502][ T5552] ------------[ cut here ]------------ [ 78.457499][ T5552] WARNING: CPU: 1 PID: 5552 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 78.459083][ T5552] Modules linked in: [ 78.459689][ T5552] CPU: 1 PID: 5552 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 78.460958][ T5552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.462468][ T5552] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.463539][ T5552] pc : __btrfs_unlink_inode+0x908/0xb00 [ 78.464348][ T5552] lr : __btrfs_unlink_inode+0x908/0xb00 [ 78.465162][ T5552] sp : ffff800022197a60 [ 78.465763][ T5552] x29: ffff800022197b10 x28: ffff0000cc9c8000 x27: ffff0000e7a2ac10 [ 78.466938][ T5552] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d7bdabb0 [ 78.468043][ T5552] x23: 1ffff00004432f54 x22: dfff800000000000 x21: ffff0000e79b1d70 [ 78.469178][ T5552] x20: ffff0000dea7b318 x19: 1fffe0001bd4f663 x18: 0000000000000001 [ 78.470399][ T5552] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 78.471562][ T5552] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 78.472689][ T5552] x11: 0000000000000000 x10: 0000000000000000 x9 : f67a99d02f996700 [ 78.473880][ T5552] x8 : f67a99d02f996700 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.475126][ T5552] x5 : ffff800022197358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 78.476321][ T5552] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.477408][ T5552] Call trace: [ 78.477913][ T5552] __btrfs_unlink_inode+0x908/0xb00 [ 78.478689][ T5552] btrfs_unlink+0x108/0x258 [ 78.479382][ T5552] vfs_unlink+0x2e0/0x4f4 [ 78.480005][ T5552] do_unlinkat+0x31c/0x600 [ 78.480624][ T5552] __arm64_sys_unlinkat+0xe0/0xfc [ 78.481342][ T5552] invoke_syscall+0x98/0x2b8 [ 78.481974][ T5552] el0_svc_common+0x138/0x258 [ 78.482673][ T5552] do_el0_svc+0x58/0x14c [ 78.483294][ T5552] el0_svc+0x78/0x1e0 [ 78.483848][ T5552] el0t_64_sync_handler+0xcc/0xe4 [ 78.484481][ T5552] el0t_64_sync+0x1a0/0x1a4 [ 78.485066][ T5552] irq event stamp: 79026 [ 78.485607][ T5552] hardirqs last enabled at (79025): [] __up_console_sem+0xb4/0x100 [ 78.486967][ T5552] hardirqs last disabled at (79026): [] el1_dbg+0x24/0x80 [ 78.488159][ T5552] softirqs last enabled at (79006): [] handle_softirqs+0xa4c/0xbf0 [ 78.489571][ T5552] softirqs last disabled at (78991): [] __irq_exit_rcu+0x240/0x440 [ 78.490908][ T5552] ---[ end trace 1815704f9fa119e0 ]--- [ 78.492474][ T5552] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 78.493892][ T5552] BTRFS info (device loop0): forced readonly [ 78.621763][ T5574] loop0: detected capacity change from 0 to 32768 [ 78.701997][ T5574] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.44 (5574) [ 78.704729][ T5574] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.705979][ T5574] BTRFS info (device loop0): using free space tree [ 78.706864][ T5574] BTRFS info (device loop0): has skinny extents [ 78.714259][ T5574] BTRFS info (device loop0): enabling ssd optimizations [ 78.718531][ T5574] FAULT_INJECTION: forcing a failure. [ 78.718531][ T5574] name failslab, interval 1, probability 0, space 0, times 0 [ 78.721200][ T5574] CPU: 1 PID: 5574 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 78.722433][ T5574] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.723801][ T5574] Call trace: [ 78.724244][ T5574] dump_backtrace+0x0/0x43c [ 78.724911][ T5574] show_stack+0x2c/0x3c [ 78.725451][ T5574] __dump_stack+0x30/0x40 [ 78.725998][ T5574] dump_stack_lvl+0xf8/0x160 [ 78.726615][ T5574] dump_stack+0x1c/0x5c [ 78.727204][ T5574] should_fail+0x3c0/0x51c [ 78.727824][ T5574] __should_failslab+0xbc/0x10c [ 78.728456][ T5574] should_failslab+0x10/0x28 [ 78.729076][ T5574] slab_pre_alloc_hook+0x64/0xec [ 78.729736][ T5574] kmem_cache_alloc_trace+0x98/0x3fc [ 78.730536][ T5574] btrfs_delete_delayed_dir_index+0x220/0x550 [ 78.731336][ T5574] __btrfs_unlink_inode+0x34c/0xb00 [ 78.732023][ T5574] btrfs_unlink+0x108/0x258 [ 78.732635][ T5574] vfs_unlink+0x2e0/0x4f4 [ 78.733219][ T5574] do_unlinkat+0x31c/0x600 [ 78.733846][ T5574] __arm64_sys_unlinkat+0xe0/0xfc [ 78.734515][ T5574] invoke_syscall+0x98/0x2b8 [ 78.735134][ T5574] el0_svc_common+0x138/0x258 [ 78.735761][ T5574] do_el0_svc+0x58/0x14c [ 78.736354][ T5574] el0_svc+0x78/0x1e0 [ 78.736894][ T5574] el0t_64_sync_handler+0xcc/0xe4 [ 78.737563][ T5574] el0t_64_sync+0x1a0/0x1a4 [ 78.738389][ T5574] ------------[ cut here ]------------ [ 78.739271][ T5574] WARNING: CPU: 1 PID: 5574 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 78.740604][ T5574] Modules linked in: [ 78.741113][ T5574] CPU: 1 PID: 5574 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 78.742249][ T5574] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.743603][ T5574] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.744654][ T5574] pc : __btrfs_unlink_inode+0x908/0xb00 [ 78.745455][ T5574] lr : __btrfs_unlink_inode+0x908/0xb00 [ 78.746200][ T5574] sp : ffff800022197a60 [ 78.746743][ T5574] x29: ffff800022197b10 x28: ffff0000cc648000 x27: ffff0000e7a2b010 [ 78.747860][ T5574] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ca738b00 [ 78.748931][ T5574] x23: 1ffff00004432f54 x22: dfff800000000000 x21: ffff0000e30f89d0 [ 78.750063][ T5574] x20: ffff0000dea7b478 x19: 1fffe0001bd4f68f x18: 0000000000000001 [ 78.751149][ T5574] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 78.752302][ T5574] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 78.753338][ T5574] x11: 0000000000000000 x10: 0000000000000000 x9 : d36beb65aec1c400 [ 78.754455][ T5574] x8 : d36beb65aec1c400 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.755585][ T5574] x5 : ffff800022197358 x4 : ffff80001426f5a0 x3 : ffff800008302274 [ 78.756711][ T5574] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.757827][ T5574] Call trace: [ 78.758317][ T5574] __btrfs_unlink_inode+0x908/0xb00 [ 78.759055][ T5574] btrfs_unlink+0x108/0x258 [ 78.759744][ T5574] vfs_unlink+0x2e0/0x4f4 [ 78.760325][ T5574] do_unlinkat+0x31c/0x600 [ 78.760930][ T5574] __arm64_sys_unlinkat+0xe0/0xfc [ 78.761584][ T5574] invoke_syscall+0x98/0x2b8 [ 78.762235][ T5574] el0_svc_common+0x138/0x258 [ 78.762867][ T5574] do_el0_svc+0x58/0x14c [ 78.763440][ T5574] el0_svc+0x78/0x1e0 [ 78.763989][ T5574] el0t_64_sync_handler+0xcc/0xe4 [ 78.764668][ T5574] el0t_64_sync+0x1a0/0x1a4 [ 78.765324][ T5574] irq event stamp: 78904 [ 78.765898][ T5574] hardirqs last enabled at (78903): [] __up_console_sem+0xb4/0x100 [ 78.767291][ T5574] hardirqs last disabled at (78904): [] el1_dbg+0x24/0x80 [ 78.768468][ T5574] softirqs last enabled at (78888): [] handle_softirqs+0xa4c/0xbf0 [ 78.769831][ T5574] softirqs last disabled at (78823): [] __irq_exit_rcu+0x240/0x440 [ 78.771209][ T5574] ---[ end trace 1815704f9fa119e1 ]--- [ 78.773039][ T5574] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 78.774538][ T5574] BTRFS info (device loop0): forced readonly [ 78.904515][ T5596] loop0: detected capacity change from 0 to 32768 [ 78.992089][ T5596] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.45 (5596) [ 78.994962][ T5596] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.996348][ T5596] BTRFS info (device loop0): using free space tree [ 78.997355][ T5596] BTRFS info (device loop0): has skinny extents [ 79.016774][ T5596] BTRFS info (device loop0): enabling ssd optimizations [ 79.021158][ T5596] FAULT_INJECTION: forcing a failure. [ 79.021158][ T5596] name failslab, interval 1, probability 0, space 0, times 0 [ 79.023157][ T5596] CPU: 0 PID: 5596 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 79.024445][ T5596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.025865][ T5596] Call trace: [ 79.026332][ T5596] dump_backtrace+0x0/0x43c [ 79.026953][ T5596] show_stack+0x2c/0x3c [ 79.027521][ T5596] __dump_stack+0x30/0x40 [ 79.028094][ T5596] dump_stack_lvl+0xf8/0x160 [ 79.028771][ T5596] dump_stack+0x1c/0x5c [ 79.029357][ T5596] should_fail+0x3c0/0x51c [ 79.029990][ T5596] __should_failslab+0xbc/0x10c [ 79.030714][ T5596] should_failslab+0x10/0x28 [ 79.031381][ T5596] slab_pre_alloc_hook+0x64/0xec [ 79.032122][ T5596] kmem_cache_alloc_trace+0x98/0x3fc [ 79.032924][ T5596] btrfs_delete_delayed_dir_index+0x220/0x550 [ 79.033757][ T5596] __btrfs_unlink_inode+0x34c/0xb00 [ 79.034548][ T5596] btrfs_unlink+0x108/0x258 [ 79.035184][ T5596] vfs_unlink+0x2e0/0x4f4 [ 79.035800][ T5596] do_unlinkat+0x31c/0x600 [ 79.036449][ T5596] __arm64_sys_unlinkat+0xe0/0xfc [ 79.037182][ T5596] invoke_syscall+0x98/0x2b8 [ 79.037817][ T5596] el0_svc_common+0x138/0x258 [ 79.038494][ T5596] do_el0_svc+0x58/0x14c [ 79.039059][ T5596] el0_svc+0x78/0x1e0 [ 79.039621][ T5596] el0t_64_sync_handler+0xcc/0xe4 [ 79.040332][ T5596] el0t_64_sync+0x1a0/0x1a4 [ 79.043666][ T5596] ------------[ cut here ]------------ [ 79.044622][ T5596] WARNING: CPU: 0 PID: 5596 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 79.045954][ T5596] Modules linked in: [ 79.046512][ T5596] CPU: 0 PID: 5596 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 79.047687][ T5596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.049261][ T5596] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.050495][ T5596] pc : __btrfs_unlink_inode+0x908/0xb00 [ 79.051296][ T5596] lr : __btrfs_unlink_inode+0x908/0xb00 [ 79.052058][ T5596] sp : ffff8000224c7a60 [ 79.052654][ T5596] x29: ffff8000224c7b10 x28: ffff0000de2ac000 x27: ffff0000e3379c10 [ 79.053786][ T5596] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d2ad2dc0 [ 79.054958][ T5596] x23: 1ffff00004498f54 x22: dfff800000000000 x21: ffff0000e79ec4b0 [ 79.056057][ T5596] x20: ffff0000dd2e6b58 x19: 1fffe0001ba5cd6b x18: 0000000000000001 [ 79.057177][ T5596] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 79.058304][ T5596] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.059488][ T5596] x11: 0000000000000000 x10: 0000000000000000 x9 : 67aa3d7d8e319a00 [ 79.060631][ T5596] x8 : 67aa3d7d8e319a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.061833][ T5596] x5 : ffff8000224c7358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 79.062945][ T5596] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.064111][ T5596] Call trace: [ 79.064644][ T5596] __btrfs_unlink_inode+0x908/0xb00 [ 79.065383][ T5596] btrfs_unlink+0x108/0x258 [ 79.066065][ T5596] vfs_unlink+0x2e0/0x4f4 [ 79.066682][ T5596] do_unlinkat+0x31c/0x600 [ 79.067333][ T5596] __arm64_sys_unlinkat+0xe0/0xfc [ 79.068066][ T5596] invoke_syscall+0x98/0x2b8 [ 79.068703][ T5596] el0_svc_common+0x138/0x258 [ 79.069364][ T5596] do_el0_svc+0x58/0x14c [ 79.070020][ T5596] el0_svc+0x78/0x1e0 [ 79.070636][ T5596] el0t_64_sync_handler+0xcc/0xe4 [ 79.071396][ T5596] el0t_64_sync+0x1a0/0x1a4 [ 79.072089][ T5596] irq event stamp: 78936 [ 79.072736][ T5596] hardirqs last enabled at (78935): [] __up_console_sem+0xb4/0x100 [ 79.074233][ T5596] hardirqs last disabled at (78936): [] el1_dbg+0x24/0x80 [ 79.075592][ T5596] softirqs last enabled at (78916): [] handle_softirqs+0xa4c/0xbf0 [ 79.076932][ T5596] softirqs last disabled at (78867): [] __irq_exit_rcu+0x240/0x440 [ 79.078285][ T5596] ---[ end trace 1815704f9fa119e2 ]--- [ 79.081397][ T5596] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 79.082893][ T5596] BTRFS info (device loop0): forced readonly [ 79.255792][ T5618] loop0: detected capacity change from 0 to 32768 [ 79.310757][ T5618] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.46 (5618) [ 79.370941][ T5618] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.372384][ T5618] BTRFS info (device loop0): using free space tree [ 79.373323][ T5618] BTRFS info (device loop0): has skinny extents [ 79.381859][ T5618] BTRFS info (device loop0): enabling ssd optimizations [ 79.386720][ T5618] FAULT_INJECTION: forcing a failure. [ 79.386720][ T5618] name failslab, interval 1, probability 0, space 0, times 0 [ 79.388549][ T5618] CPU: 1 PID: 5618 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 79.389763][ T5618] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.391239][ T5618] Call trace: [ 79.391675][ T5618] dump_backtrace+0x0/0x43c [ 79.392316][ T5618] show_stack+0x2c/0x3c [ 79.392859][ T5618] __dump_stack+0x30/0x40 [ 79.393430][ T5618] dump_stack_lvl+0xf8/0x160 [ 79.394107][ T5618] dump_stack+0x1c/0x5c [ 79.394676][ T5618] should_fail+0x3c0/0x51c [ 79.395348][ T5618] __should_failslab+0xbc/0x10c [ 79.396109][ T5618] should_failslab+0x10/0x28 [ 79.396840][ T5618] slab_pre_alloc_hook+0x64/0xec [ 79.397587][ T5618] kmem_cache_alloc_trace+0x98/0x3fc [ 79.398389][ T5618] btrfs_delete_delayed_dir_index+0x220/0x550 [ 79.399238][ T5618] __btrfs_unlink_inode+0x34c/0xb00 [ 79.399985][ T5618] btrfs_unlink+0x108/0x258 [ 79.400637][ T5618] vfs_unlink+0x2e0/0x4f4 [ 79.401232][ T5618] do_unlinkat+0x31c/0x600 [ 79.401866][ T5618] __arm64_sys_unlinkat+0xe0/0xfc [ 79.402516][ T5618] invoke_syscall+0x98/0x2b8 [ 79.403175][ T5618] el0_svc_common+0x138/0x258 [ 79.403860][ T5618] do_el0_svc+0x58/0x14c [ 79.404484][ T5618] el0_svc+0x78/0x1e0 [ 79.405066][ T5618] el0t_64_sync_handler+0xcc/0xe4 [ 79.405775][ T5618] el0t_64_sync+0x1a0/0x1a4 [ 79.406680][ T5618] ------------[ cut here ]------------ [ 79.407679][ T5618] WARNING: CPU: 1 PID: 5618 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 79.409133][ T5618] Modules linked in: [ 79.409768][ T5618] CPU: 1 PID: 5618 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 79.411035][ T5618] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.412490][ T5618] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.413630][ T5618] pc : __btrfs_unlink_inode+0x908/0xb00 [ 79.414364][ T5618] lr : __btrfs_unlink_inode+0x908/0xb00 [ 79.415141][ T5618] sp : ffff8000224d7a60 [ 79.415700][ T5618] x29: ffff8000224d7b10 x28: ffff0000cf9fa000 x27: ffff0000e7a29c10 [ 79.416849][ T5618] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d2fbe420 [ 79.418000][ T5618] x23: 1ffff0000449af54 x22: dfff800000000000 x21: ffff0000e30f9d70 [ 79.419220][ T5618] x20: ffff0000dea7b5d8 x19: 1fffe0001bd4f6bb x18: 0000000000000001 [ 79.420337][ T5618] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 79.421462][ T5618] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.422583][ T5618] x11: 0000000000000000 x10: 0000000000000000 x9 : faeab02704178800 [ 79.423837][ T5618] x8 : faeab02704178800 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.425014][ T5618] x5 : ffff8000224d7358 x4 : ffff80001426f5a0 x3 : ffff800008302274 [ 79.426116][ T5618] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.427313][ T5618] Call trace: [ 79.427814][ T5618] __btrfs_unlink_inode+0x908/0xb00 [ 79.428553][ T5618] btrfs_unlink+0x108/0x258 [ 79.429195][ T5618] vfs_unlink+0x2e0/0x4f4 [ 79.429785][ T5618] do_unlinkat+0x31c/0x600 [ 79.430411][ T5618] __arm64_sys_unlinkat+0xe0/0xfc [ 79.431133][ T5618] invoke_syscall+0x98/0x2b8 [ 79.431785][ T5618] el0_svc_common+0x138/0x258 [ 79.432455][ T5618] do_el0_svc+0x58/0x14c [ 79.433068][ T5618] el0_svc+0x78/0x1e0 [ 79.433608][ T5618] el0t_64_sync_handler+0xcc/0xe4 [ 79.434282][ T5618] el0t_64_sync+0x1a0/0x1a4 [ 79.434874][ T5618] irq event stamp: 78844 [ 79.435448][ T5618] hardirqs last enabled at (78843): [] __up_console_sem+0xb4/0x100 [ 79.436771][ T5618] hardirqs last disabled at (78844): [] el1_dbg+0x24/0x80 [ 79.437978][ T5618] softirqs last enabled at (78824): [] handle_softirqs+0xa4c/0xbf0 [ 79.439361][ T5618] softirqs last disabled at (78793): [] __irq_exit_rcu+0x240/0x440 [ 79.440657][ T5618] ---[ end trace 1815704f9fa119e3 ]--- [ 79.441702][ T5618] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 79.443056][ T5618] BTRFS info (device loop0): forced readonly [ 79.575067][ T5640] loop0: detected capacity change from 0 to 32768 [ 79.577798][ T5640] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.47 (5640) [ 79.582115][ T5640] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.583547][ T5640] BTRFS info (device loop0): using free space tree [ 79.584476][ T5640] BTRFS info (device loop0): has skinny extents [ 79.593584][ T5640] BTRFS info (device loop0): enabling ssd optimizations [ 79.597452][ T5640] FAULT_INJECTION: forcing a failure. [ 79.597452][ T5640] name failslab, interval 1, probability 0, space 0, times 0 [ 79.599416][ T5640] CPU: 1 PID: 5640 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 79.600709][ T5640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.602291][ T5640] Call trace: [ 79.602760][ T5640] dump_backtrace+0x0/0x43c [ 79.603402][ T5640] show_stack+0x2c/0x3c [ 79.604012][ T5640] __dump_stack+0x30/0x40 [ 79.604703][ T5640] dump_stack_lvl+0xf8/0x160 [ 79.605374][ T5640] dump_stack+0x1c/0x5c [ 79.605967][ T5640] should_fail+0x3c0/0x51c [ 79.606545][ T5640] __should_failslab+0xbc/0x10c [ 79.607217][ T5640] should_failslab+0x10/0x28 [ 79.607868][ T5640] slab_pre_alloc_hook+0x64/0xec [ 79.608628][ T5640] kmem_cache_alloc_trace+0x98/0x3fc [ 79.609428][ T5640] btrfs_delete_delayed_dir_index+0x220/0x550 [ 79.610296][ T5640] __btrfs_unlink_inode+0x34c/0xb00 [ 79.611024][ T5640] btrfs_unlink+0x108/0x258 [ 79.611671][ T5640] vfs_unlink+0x2e0/0x4f4 [ 79.612270][ T5640] do_unlinkat+0x31c/0x600 [ 79.612913][ T5640] __arm64_sys_unlinkat+0xe0/0xfc [ 79.613628][ T5640] invoke_syscall+0x98/0x2b8 [ 79.614283][ T5640] el0_svc_common+0x138/0x258 [ 79.614990][ T5640] do_el0_svc+0x58/0x14c [ 79.615594][ T5640] el0_svc+0x78/0x1e0 [ 79.616174][ T5640] el0t_64_sync_handler+0xcc/0xe4 [ 79.616821][ T5640] el0t_64_sync+0x1a0/0x1a4 [ 79.620674][ T5640] ------------[ cut here ]------------ [ 79.621603][ T5640] WARNING: CPU: 1 PID: 5640 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 79.622850][ T5640] Modules linked in: [ 79.623385][ T5640] CPU: 1 PID: 5640 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 79.624592][ T5640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.626055][ T5640] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.627097][ T5640] pc : __btrfs_unlink_inode+0x908/0xb00 [ 79.627914][ T5640] lr : __btrfs_unlink_inode+0x908/0xb00 [ 79.628647][ T5640] sp : ffff800022d97a60 [ 79.629193][ T5640] x29: ffff800022d97b10 x28: ffff0000ce32e000 x27: ffff0000e7a2a010 [ 79.630317][ T5640] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c2f882c0 [ 79.631491][ T5640] x23: 1ffff000045b2f54 x22: dfff800000000000 x21: ffff0000e30fc4b0 [ 79.632583][ T5640] x20: ffff0000dea7b738 x19: 1fffe0001bd4f6e7 x18: 0000000000000001 [ 79.633731][ T5640] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 79.634826][ T5640] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.636016][ T5640] x11: 0000000000000000 x10: 0000000000000000 x9 : 5ade8307d6ea9400 [ 79.637244][ T5640] x8 : 5ade8307d6ea9400 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.638423][ T5640] x5 : ffff800022d97358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 79.639472][ T5640] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.640654][ T5640] Call trace: [ 79.641111][ T5640] __btrfs_unlink_inode+0x908/0xb00 [ 79.641883][ T5640] btrfs_unlink+0x108/0x258 [ 79.642603][ T5640] vfs_unlink+0x2e0/0x4f4 [ 79.643223][ T5640] do_unlinkat+0x31c/0x600 [ 79.643882][ T5640] __arm64_sys_unlinkat+0xe0/0xfc [ 79.644616][ T5640] invoke_syscall+0x98/0x2b8 [ 79.645289][ T5640] el0_svc_common+0x138/0x258 [ 79.645967][ T5640] do_el0_svc+0x58/0x14c [ 79.646577][ T5640] el0_svc+0x78/0x1e0 [ 79.647160][ T5640] el0t_64_sync_handler+0xcc/0xe4 [ 79.647933][ T5640] el0t_64_sync+0x1a0/0x1a4 [ 79.648600][ T5640] irq event stamp: 78940 [ 79.649220][ T5640] hardirqs last enabled at (78939): [] __up_console_sem+0xb4/0x100 [ 79.650611][ T5640] hardirqs last disabled at (78940): [] el1_dbg+0x24/0x80 [ 79.651857][ T5640] softirqs last enabled at (78920): [] handle_softirqs+0xa4c/0xbf0 [ 79.653229][ T5640] softirqs last disabled at (78879): [] __irq_exit_rcu+0x240/0x440 [ 79.654534][ T5640] ---[ end trace 1815704f9fa119e4 ]--- [ 79.657510][ T5640] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 79.658972][ T5640] BTRFS info (device loop0): forced readonly [ 79.855577][ T5662] loop0: detected capacity change from 0 to 32768 [ 79.866650][ T5662] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.48 (5662) [ 79.874206][ T5662] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.875620][ T5662] BTRFS info (device loop0): using free space tree [ 79.876669][ T5662] BTRFS info (device loop0): has skinny extents [ 79.932279][ T5662] BTRFS info (device loop0): enabling ssd optimizations [ 79.944251][ T5662] FAULT_INJECTION: forcing a failure. [ 79.944251][ T5662] name failslab, interval 1, probability 0, space 0, times 0 [ 79.946203][ T5662] CPU: 0 PID: 5662 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 79.947426][ T5662] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.948828][ T5662] Call trace: [ 79.949312][ T5662] dump_backtrace+0x0/0x43c [ 79.950003][ T5662] show_stack+0x2c/0x3c [ 79.950576][ T5662] __dump_stack+0x30/0x40 [ 79.951235][ T5662] dump_stack_lvl+0xf8/0x160 [ 79.951915][ T5662] dump_stack+0x1c/0x5c [ 79.952529][ T5662] should_fail+0x3c0/0x51c [ 79.953148][ T5662] __should_failslab+0xbc/0x10c [ 79.953863][ T5662] should_failslab+0x10/0x28 [ 79.954520][ T5662] slab_pre_alloc_hook+0x64/0xec [ 79.955242][ T5662] kmem_cache_alloc_trace+0x98/0x3fc [ 79.956060][ T5662] btrfs_delete_delayed_dir_index+0x220/0x550 [ 79.956970][ T5662] __btrfs_unlink_inode+0x34c/0xb00 [ 79.957739][ T5662] btrfs_unlink+0x108/0x258 [ 79.958391][ T5662] vfs_unlink+0x2e0/0x4f4 [ 79.959045][ T5662] do_unlinkat+0x31c/0x600 [ 79.959736][ T5662] __arm64_sys_unlinkat+0xe0/0xfc [ 79.960472][ T5662] invoke_syscall+0x98/0x2b8 [ 79.961122][ T5662] el0_svc_common+0x138/0x258 [ 79.961784][ T5662] do_el0_svc+0x58/0x14c [ 79.962426][ T5662] el0_svc+0x78/0x1e0 [ 79.963001][ T5662] el0t_64_sync_handler+0xcc/0xe4 [ 79.963703][ T5662] el0t_64_sync+0x1a0/0x1a4 [ 79.969607][ T5662] ------------[ cut here ]------------ [ 79.970565][ T5662] WARNING: CPU: 1 PID: 5662 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 79.971893][ T5662] Modules linked in: [ 79.972508][ T5662] CPU: 1 PID: 5662 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 79.973741][ T5662] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.975112][ T5662] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.976191][ T5662] pc : __btrfs_unlink_inode+0x908/0xb00 [ 79.977011][ T5662] lr : __btrfs_unlink_inode+0x908/0xb00 [ 79.977815][ T5662] sp : ffff8000224c7a60 [ 79.978421][ T5662] x29: ffff8000224c7b10 x28: ffff0000cf292000 x27: ffff0000e3378c10 [ 79.979568][ T5662] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c9f7ef20 [ 79.980727][ T5662] x23: 1ffff00004498f54 x22: dfff800000000000 x21: ffff0000e79ef5c0 [ 79.981875][ T5662] x20: ffff0000dd2e65d8 x19: 1fffe0001ba5ccbb x18: 0000000000000001 [ 79.983021][ T5662] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 79.984237][ T5662] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.985437][ T5662] x11: 0000000000000000 x10: 0000000000000000 x9 : 55e43cbcd9e21600 [ 79.986643][ T5662] x8 : 55e43cbcd9e21600 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.987816][ T5662] x5 : ffff8000224c7358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 79.988986][ T5662] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.990183][ T5662] Call trace: [ 79.990644][ T5662] __btrfs_unlink_inode+0x908/0xb00 [ 79.991411][ T5662] btrfs_unlink+0x108/0x258 [ 79.992051][ T5662] vfs_unlink+0x2e0/0x4f4 [ 79.992639][ T5662] do_unlinkat+0x31c/0x600 [ 79.993256][ T5662] __arm64_sys_unlinkat+0xe0/0xfc [ 79.994037][ T5662] invoke_syscall+0x98/0x2b8 [ 79.994745][ T5662] el0_svc_common+0x138/0x258 [ 79.995423][ T5662] do_el0_svc+0x58/0x14c [ 79.996041][ T5662] el0_svc+0x78/0x1e0 [ 79.996674][ T5662] el0t_64_sync_handler+0xcc/0xe4 [ 79.997337][ T5662] el0t_64_sync+0x1a0/0x1a4 [ 79.997953][ T5662] irq event stamp: 78886 [ 79.998556][ T5662] hardirqs last enabled at (78885): [] __up_console_sem+0xb4/0x100 [ 79.999971][ T5662] hardirqs last disabled at (78886): [] el1_dbg+0x24/0x80 [ 80.001182][ T5662] softirqs last enabled at (78866): [] handle_softirqs+0xa4c/0xbf0 [ 80.002500][ T5662] softirqs last disabled at (78851): [] __irq_exit_rcu+0x240/0x440 [ 80.003884][ T5662] ---[ end trace 1815704f9fa119e5 ]--- [ 80.027931][ T5662] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 80.029925][ T5662] BTRFS info (device loop0): forced readonly [ 80.213924][ T5684] loop0: detected capacity change from 0 to 32768 [ 80.221062][ T5684] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.49 (5684) [ 80.224029][ T5684] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.225429][ T5684] BTRFS info (device loop0): using free space tree [ 80.226410][ T5684] BTRFS info (device loop0): has skinny extents [ 80.239410][ T5684] BTRFS info (device loop0): enabling ssd optimizations [ 80.244486][ T5684] FAULT_INJECTION: forcing a failure. [ 80.244486][ T5684] name failslab, interval 1, probability 0, space 0, times 0 [ 80.246372][ T5684] CPU: 0 PID: 5684 Comm: syz.0.49 Tainted: G W syzkaller #0 [ 80.247591][ T5684] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.248975][ T5684] Call trace: [ 80.249415][ T5684] dump_backtrace+0x0/0x43c [ 80.250119][ T5684] show_stack+0x2c/0x3c [ 80.250664][ T5684] __dump_stack+0x30/0x40 [ 80.251376][ T5684] dump_stack_lvl+0xf8/0x160 [ 80.252069][ T5684] dump_stack+0x1c/0x5c [ 80.252652][ T5684] should_fail+0x3c0/0x51c [ 80.253318][ T5684] __should_failslab+0xbc/0x10c [ 80.253994][ T5684] should_failslab+0x10/0x28 [ 80.254667][ T5684] slab_pre_alloc_hook+0x64/0xec [ 80.255342][ T5684] kmem_cache_alloc_trace+0x98/0x3fc [ 80.256028][ T5684] btrfs_delete_delayed_dir_index+0x220/0x550 [ 80.256877][ T5684] __btrfs_unlink_inode+0x34c/0xb00 [ 80.257596][ T5684] btrfs_unlink+0x108/0x258 [ 80.258223][ T5684] vfs_unlink+0x2e0/0x4f4 [ 80.258818][ T5684] do_unlinkat+0x31c/0x600 [ 80.259428][ T5684] __arm64_sys_unlinkat+0xe0/0xfc [ 80.260101][ T5684] invoke_syscall+0x98/0x2b8 [ 80.260744][ T5684] el0_svc_common+0x138/0x258 [ 80.261376][ T5684] do_el0_svc+0x58/0x14c [ 80.261947][ T5684] el0_svc+0x78/0x1e0 [ 80.262463][ T5684] el0t_64_sync_handler+0xcc/0xe4 [ 80.263156][ T5684] el0t_64_sync+0x1a0/0x1a4 [ 80.265150][ T5684] ------------[ cut here ]------------ [ 80.266027][ T5684] WARNING: CPU: 0 PID: 5684 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 80.267385][ T5684] Modules linked in: [ 80.268001][ T5684] CPU: 0 PID: 5684 Comm: syz.0.49 Tainted: G W syzkaller #0 [ 80.269215][ T5684] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.270580][ T5684] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.271764][ T5684] pc : __btrfs_unlink_inode+0x908/0xb00 [ 80.272525][ T5684] lr : __btrfs_unlink_inode+0x908/0xb00 [ 80.273315][ T5684] sp : ffff800022f17a60 [ 80.273969][ T5684] x29: ffff800022f17b10 x28: ffff0000d6714000 x27: ffff0000e3379810 [ 80.275286][ T5684] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cb1bf160 [ 80.276440][ T5684] x23: 1ffff000045e2f54 x22: dfff800000000000 x21: ffff0000e79e9d70 [ 80.277608][ T5684] x20: ffff0000dd2e69f8 x19: 1fffe0001ba5cd3f x18: 0000000000000001 [ 80.278839][ T5684] x17: 0000000000000000 x16: ffff8000111ceed0 x15: 00000000ffffffff [ 80.279981][ T5684] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 80.281083][ T5684] x11: 0000000000000000 x10: 0000000000000000 x9 : 9cfe2f5a70fb5b00 [ 80.282293][ T5684] x8 : 9cfe2f5a70fb5b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.283439][ T5684] x5 : ffff800022f17358 x4 : ffff80001426f5a0 x3 : ffff8000085043fc [ 80.284549][ T5684] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.285752][ T5684] Call trace: [ 80.286237][ T5684] __btrfs_unlink_inode+0x908/0xb00 [ 80.287021][ T5684] btrfs_unlink+0x108/0x258 [ 80.287666][ T5684] vfs_unlink+0x2e0/0x4f4 [ 80.288308][ T5684] do_unlinkat+0x31c/0x600 [ 80.288935][ T5684] __arm64_sys_unlinkat+0xe0/0xfc [ 80.289707][ T5684] invoke_syscall+0x98/0x2b8 [ 80.290393][ T5684] el0_svc_common+0x138/0x258 [ 80.291089][ T5684] do_el0_svc+0x58/0x14c [ 80.291751][ T5684] el0_svc+0x78/0x1e0 [ 80.292330][ T5684] el0t_64_sync_handler+0xcc/0xe4 [ 80.293094][ T5684] el0t_64_sync+0x1a0/0x1a4 [ 80.293811][ T5684] irq event stamp: 79340 [ 80.294458][ T5684] hardirqs last enabled at (79339): [] __up_console_sem+0xb4/0x100 [ 80.295904][ T5684] hardirqs last disabled at (79340): [] el1_dbg+0x24/0x80 [ 80.297292][ T5684] softirqs last enabled at (79320): [] handle_softirqs+0xa4c/0xbf0 [ 80.298743][ T5684] softirqs last disabled at (79301): [] __irq_exit_rcu+0x240/0x440 [ 80.300201][ T5684] ---[ end trace 1815704f9fa119e6 ]--- [ 80.302320][ T5684] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 80.303703][ T5684] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:20 executed programs: 37