Warning: Permanently added '10.128.0.249' (ED25519) to the list of known hosts. 1970/01/01 00:01:23 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:01:23 ignoring optional flag "type"="gce" 1970/01/01 00:01:23 parsed 1 programs [ 86.504062][ T4451] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 94.022293][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.024843][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.028393][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 94.040063][ T136] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.042245][ T136] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.045235][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 94.736927][ T4513] chnl_net:caif_netlink_parms(): no params data found [ 94.769930][ T4513] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.772012][ T4513] bridge0: port 1(bridge_slave_0) entered disabled state [ 94.775230][ T4513] device bridge_slave_0 entered promiscuous mode [ 94.778747][ T4513] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.780762][ T4513] bridge0: port 2(bridge_slave_1) entered disabled state [ 94.783797][ T4513] device bridge_slave_1 entered promiscuous mode [ 94.798778][ T4513] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 94.803681][ T4513] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 94.818287][ T4513] team0: Port device team_slave_0 added [ 94.821516][ T4513] team0: Port device team_slave_1 added [ 94.835246][ T4513] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 94.837108][ T4513] 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. [ 94.844506][ T4513] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 94.848509][ T4513] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 94.850401][ T4513] 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. [ 94.858912][ T4513] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 94.925273][ T4513] device hsr_slave_0 entered promiscuous mode [ 94.963607][ T4513] device hsr_slave_1 entered promiscuous mode [ 95.707905][ T4513] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 95.725570][ T4513] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 95.764860][ T4513] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 95.795071][ T4513] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 95.898392][ T4513] 8021q: adding VLAN 0 to HW filter on device bond0 [ 95.905489][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 95.908003][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 95.912429][ T4513] 8021q: adding VLAN 0 to HW filter on device team0 [ 95.917785][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 95.920485][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 95.923018][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.925069][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 95.927909][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 95.937065][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 95.939848][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 95.942598][ T1604] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.944595][ T1604] bridge0: port 2(bridge_slave_1) entered forwarding state [ 95.947582][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 95.963343][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 95.966370][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 95.969717][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 95.972482][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 95.975781][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 95.978549][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 95.981321][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 95.987796][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 95.990512][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 95.994639][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 95.998627][ T4513] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 96.084302][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 96.086475][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 96.090620][ T4513] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 96.138706][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 96.141545][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 96.158560][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 96.162014][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 96.165492][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 96.168030][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 96.172043][ T4513] device veth0_vlan entered promiscuous mode [ 96.178234][ T4513] device veth1_vlan entered promiscuous mode [ 96.192283][ T4513] device veth0_macvtap entered promiscuous mode [ 96.196408][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 96.198906][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 96.201426][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 96.205250][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 96.210648][ T4513] device veth1_macvtap entered promiscuous mode [ 96.219369][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 96.222355][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 96.230930][ T4513] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 96.236278][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 96.239029][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 96.244840][ T4513] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 96.247017][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 96.249775][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 96.254858][ T4513] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.257113][ T4513] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.259653][ T4513] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.262005][ T4513] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:36 executed programs: 0 [ 96.480053][ T4613] chnl_net:caif_netlink_parms(): no params data found [ 96.518425][ T4613] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.520489][ T4613] bridge0: port 1(bridge_slave_0) entered disabled state [ 96.523112][ T4613] device bridge_slave_0 entered promiscuous mode [ 96.529943][ T4613] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.531956][ T4613] bridge0: port 2(bridge_slave_1) entered disabled state [ 96.534970][ T4613] device bridge_slave_1 entered promiscuous mode [ 96.554318][ T4613] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 96.558703][ T4613] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 96.612744][ T4613] team0: Port device team_slave_0 added [ 96.616482][ T4613] team0: Port device team_slave_1 added [ 96.632744][ T4613] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 96.635434][ T4613] 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. [ 96.642206][ T4613] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 96.650601][ T4613] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 96.652537][ T4613] 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. [ 96.660279][ T4613] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 96.715558][ T4613] device hsr_slave_0 entered promiscuous mode [ 96.744515][ T4613] device hsr_slave_1 entered promiscuous mode [ 96.783431][ T4613] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 96.785596][ T4613] Cannot create hsr debugfs directory [ 96.844608][ T4613] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 98.433328][ T21] Bluetooth: hci0: command 0x0409 tx timeout [ 98.948756][ T4613] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.503364][ T3614] Bluetooth: hci0: command 0x041b tx timeout [ 101.478628][ T4613] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 101.532865][ T4613] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 101.731585][ T4613] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 101.795064][ T4613] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 101.835594][ T4613] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 101.895406][ T4613] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 101.980628][ T4613] 8021q: adding VLAN 0 to HW filter on device bond0 [ 101.988360][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 101.991051][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 102.001267][ T4613] 8021q: adding VLAN 0 to HW filter on device team0 [ 102.013624][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 102.016492][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 102.019364][ T380] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.021337][ T380] bridge0: port 1(bridge_slave_0) entered forwarding state [ 102.024677][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 102.027447][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 102.030878][ T380] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.032807][ T380] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.036325][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 102.039268][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 102.046215][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 102.048898][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 102.052386][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 102.055737][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 102.066837][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 102.069689][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 102.072374][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 102.075544][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 102.079995][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 102.082584][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 102.087744][ T4613] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 102.162654][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 102.165159][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 102.171530][ T4613] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 102.188051][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 102.190867][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 102.208437][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 102.211342][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 102.217373][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 102.220348][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 102.225544][ T4613] device veth0_vlan entered promiscuous mode [ 102.232317][ T4613] device veth1_vlan entered promiscuous mode [ 102.250117][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 102.252739][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 102.259254][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 102.262566][ T380] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 102.267703][ T4613] device veth0_macvtap entered promiscuous mode [ 102.271889][ T4613] device veth1_macvtap entered promiscuous mode [ 102.282550][ T4613] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 102.285634][ T4613] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 102.289583][ T4613] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 102.291701][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 102.295321][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 102.297960][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 102.300730][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 102.306135][ T4613] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 102.309067][ T4613] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 102.312639][ T4613] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 102.317643][ T4613] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.320075][ T4613] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.322539][ T4613] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.325491][ T4613] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.329183][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 102.332109][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 102.379042][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 102.381392][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 102.387418][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 102.583776][ T4122] Bluetooth: hci0: command 0x040f tx timeout [ 102.666020][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 102.668468][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 102.671354][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:42 executed programs: 2 [ 102.899647][ T4889] loop0: detected capacity change from 0 to 32768 [ 102.938433][ T4889] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.15 (4889) [ 102.950199][ T4889] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 102.952921][ T4889] BTRFS info (device loop0): using free space tree [ 102.955316][ T4889] BTRFS info (device loop0): has skinny extents [ 102.984277][ T4889] BTRFS info (device loop0): enabling ssd optimizations [ 103.001589][ T4889] FAULT_INJECTION: forcing a failure. [ 103.001589][ T4889] name failslab, interval 1, probability 0, space 0, times 1 [ 103.006250][ T4889] CPU: 1 PID: 4889 Comm: syz.0.15 Not tainted 5.15.188-syzkaller #0 [ 103.008506][ T4889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 103.011224][ T4889] Call trace: [ 103.012120][ T4889] dump_backtrace+0x0/0x43c [ 103.013369][ T4889] show_stack+0x2c/0x3c [ 103.014509][ T4889] __dump_stack+0x30/0x40 [ 103.015783][ T4889] dump_stack_lvl+0xf8/0x160 [ 103.017090][ T4889] dump_stack+0x1c/0x5c [ 103.018307][ T4889] should_fail+0x3c0/0x51c [ 103.019579][ T4889] __should_failslab+0xbc/0x10c [ 103.020971][ T4889] should_failslab+0x10/0x28 [ 103.022295][ T4889] slab_pre_alloc_hook+0x64/0xec [ 103.023746][ T4889] kmem_cache_alloc_trace+0x98/0x3fc [ 103.025281][ T4889] btrfs_delete_delayed_dir_index+0x220/0x550 [ 103.027012][ T4889] __btrfs_unlink_inode+0x34c/0xb00 [ 103.028486][ T4889] btrfs_unlink+0x108/0x258 [ 103.029766][ T4889] vfs_unlink+0x2e0/0x4f4 [ 103.031000][ T4889] do_unlinkat+0x31c/0x600 [ 103.032255][ T4889] __arm64_sys_unlinkat+0xe0/0xfc [ 103.033678][ T4889] invoke_syscall+0x98/0x2b8 [ 103.035000][ T4889] el0_svc_common+0x138/0x258 [ 103.036340][ T4889] do_el0_svc+0x58/0x14c [ 103.037464][ T4889] el0_svc+0x78/0x1e0 [ 103.038597][ T4889] el0t_64_sync_handler+0xcc/0xe4 [ 103.040070][ T4889] el0t_64_sync+0x1a0/0x1a4 [ 103.041585][ T4889] ------------[ cut here ]------------ [ 103.043433][ T4889] WARNING: CPU: 1 PID: 4889 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 103.046090][ T4889] Modules linked in: [ 103.047096][ T4889] CPU: 1 PID: 4889 Comm: syz.0.15 Not tainted 5.15.188-syzkaller #0 [ 103.049320][ T4889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 103.052146][ T4889] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 103.054351][ T4889] pc : __btrfs_unlink_inode+0x908/0xb00 [ 103.055870][ T4889] lr : __btrfs_unlink_inode+0x908/0xb00 [ 103.057473][ T4889] sp : ffff80001f6b7a60 [ 103.058616][ T4889] x29: ffff80001f6b7b10 x28: ffff0000e8a5a000 x27: ffff0000e2788010 [ 103.060905][ T4889] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000dcfe0e70 [ 103.063184][ T4889] x23: 1ffff00003ed6f54 x22: dfff800000000000 x21: ffff0000ea1709d0 [ 103.065501][ T4889] x20: ffff0000de7a7108 x19: 1fffe0001bcf4e21 x18: 0000000000000001 [ 103.067728][ T4889] x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff [ 103.070015][ T4889] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 103.072336][ T4889] x11: 0000000000000000 x10: 0000000000000000 x9 : a57cdd9103010f00 [ 103.074723][ T4889] x8 : a57cdd9103010f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 103.076877][ T4889] x5 : ffff80001f6b7358 x4 : ffff80001425f400 x3 : ffff8000085051a4 [ 103.079074][ T4889] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 103.081346][ T4889] Call trace: [ 103.082281][ T4889] __btrfs_unlink_inode+0x908/0xb00 [ 103.083801][ T4889] btrfs_unlink+0x108/0x258 [ 103.085153][ T4889] vfs_unlink+0x2e0/0x4f4 [ 103.086358][ T4889] do_unlinkat+0x31c/0x600 [ 103.087674][ T4889] __arm64_sys_unlinkat+0xe0/0xfc [ 103.089152][ T4889] invoke_syscall+0x98/0x2b8 [ 103.090474][ T4889] el0_svc_common+0x138/0x258 [ 103.091845][ T4889] do_el0_svc+0x58/0x14c [ 103.093133][ T4889] el0_svc+0x78/0x1e0 [ 103.094224][ T4889] el0t_64_sync_handler+0xcc/0xe4 [ 103.095612][ T4889] el0t_64_sync+0x1a0/0x1a4 [ 103.096874][ T4889] irq event stamp: 81118 [ 103.098059][ T4889] hardirqs last enabled at (81117): [] __up_console_sem+0xb4/0x100 [ 103.100861][ T4889] hardirqs last disabled at (81118): [] el1_dbg+0x24/0x80 [ 103.103414][ T4889] softirqs last enabled at (81108): [] handle_softirqs+0xa4c/0xbf0 [ 103.106254][ T4889] softirqs last disabled at (81099): [] __irq_exit_rcu+0x240/0x440 [ 103.108920][ T4889] ---[ end trace 3f261a58dfc76dda ]--- [ 103.112067][ T4889] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 103.114853][ T4889] BTRFS info (device loop0): forced readonly [ 103.447461][ T4918] loop0: detected capacity change from 0 to 32768 [ 103.530630][ T4918] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.16 (4918) [ 103.536969][ T4918] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 103.539420][ T4918] BTRFS info (device loop0): using free space tree [ 103.541276][ T4918] BTRFS info (device loop0): has skinny extents [ 103.577810][ T4918] BTRFS info (device loop0): enabling ssd optimizations [ 103.591009][ T4918] FAULT_INJECTION: forcing a failure. [ 103.591009][ T4918] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 103.595043][ T4918] CPU: 1 PID: 4918 Comm: syz.0.16 Tainted: G W 5.15.188-syzkaller #0 [ 103.597581][ T4918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 103.600357][ T4918] Call trace: [ 103.601252][ T4918] dump_backtrace+0x0/0x43c [ 103.602537][ T4918] show_stack+0x2c/0x3c [ 103.603706][ T4918] __dump_stack+0x30/0x40 [ 103.604906][ T4918] dump_stack_lvl+0xf8/0x160 [ 103.606214][ T4918] dump_stack+0x1c/0x5c [ 103.607356][ T4918] should_fail+0x3c0/0x51c [ 103.608515][ T4918] should_fail_alloc_page+0x74/0xa8 [ 103.609951][ T4918] prepare_alloc_pages+0x160/0x460 [ 103.611435][ T4918] __alloc_pages+0x108/0x470 [ 103.612696][ T4918] alloc_pages+0x34c/0x5c0 [ 103.613937][ T4918] new_slab+0xe0/0x55c [ 103.615128][ T4918] ___slab_alloc+0x6c0/0xda8 [ 103.616443][ T4918] __slab_alloc+0x68/0xc0 [ 103.617671][ T4918] kmem_cache_alloc+0x2ac/0x3e4 [ 103.619025][ T4918] btrfs_alloc_path+0x5c/0x68 [ 103.620294][ T4918] __btrfs_unlink_inode+0x1d8/0xb00 [ 103.621772][ T4918] btrfs_unlink+0x108/0x258 [ 103.623129][ T4918] vfs_unlink+0x2e0/0x4f4 [ 103.624326][ T4918] do_unlinkat+0x31c/0x600 [ 103.625552][ T4918] __arm64_sys_unlinkat+0xe0/0xfc [ 103.626876][ T4918] invoke_syscall+0x98/0x2b8 [ 103.628179][ T4918] el0_svc_common+0x138/0x258 [ 103.629448][ T4918] do_el0_svc+0x58/0x14c [ 103.630641][ T4918] el0_svc+0x78/0x1e0 [ 103.631813][ T4918] el0t_64_sync_handler+0xcc/0xe4 [ 103.633254][ T4918] el0t_64_sync+0x1a0/0x1a4 [ 103.983293][ T4941] loop0: detected capacity change from 0 to 32768 [ 104.006120][ T304] device hsr_slave_0 left promiscuous mode [ 104.043256][ T4941] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.17 (4941) [ 104.047378][ T304] device hsr_slave_1 left promiscuous mode [ 104.057774][ T4941] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 104.060248][ T4941] BTRFS info (device loop0): using free space tree [ 104.061994][ T4941] BTRFS info (device loop0): has skinny extents [ 104.080236][ T4941] BTRFS info (device loop0): enabling ssd optimizations [ 104.090874][ T4941] FAULT_INJECTION: forcing a failure. [ 104.090874][ T4941] name failslab, interval 1, probability 0, space 0, times 0 [ 104.094664][ T4941] CPU: 0 PID: 4941 Comm: syz.0.17 Tainted: G W 5.15.188-syzkaller #0 [ 104.097274][ T4941] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 104.100109][ T4941] Call trace: [ 104.100962][ T4941] dump_backtrace+0x0/0x43c [ 104.102195][ T4941] show_stack+0x2c/0x3c [ 104.103315][ T4941] __dump_stack+0x30/0x40 [ 104.104512][ T4941] dump_stack_lvl+0xf8/0x160 [ 104.105779][ T4941] dump_stack+0x1c/0x5c [ 104.106944][ T4941] should_fail+0x3c0/0x51c [ 104.108201][ T4941] __should_failslab+0xbc/0x10c [ 104.109529][ T4941] should_failslab+0x10/0x28 [ 104.110836][ T4941] slab_pre_alloc_hook+0x64/0xec [ 104.112244][ T4941] kmem_cache_alloc_trace+0x98/0x3fc [ 104.113656][ T4941] btrfs_delete_delayed_dir_index+0x220/0x550 [ 104.115419][ T4941] __btrfs_unlink_inode+0x34c/0xb00 [ 104.116875][ T4941] btrfs_unlink+0x108/0x258 [ 104.118149][ T4941] vfs_unlink+0x2e0/0x4f4 [ 104.119363][ T4941] do_unlinkat+0x31c/0x600 [ 104.120644][ T4941] __arm64_sys_unlinkat+0xe0/0xfc [ 104.122068][ T4941] invoke_syscall+0x98/0x2b8 [ 104.123391][ T4941] el0_svc_common+0x138/0x258 [ 104.124656][ T4941] do_el0_svc+0x58/0x14c [ 104.125838][ T4941] el0_svc+0x78/0x1e0 [ 104.127163][ T4941] el0t_64_sync_handler+0xcc/0xe4 [ 104.128601][ T4941] el0t_64_sync+0x1a0/0x1a4 [ 104.130676][ T4941] ------------[ cut here ]------------ [ 104.132452][ T4941] WARNING: CPU: 0 PID: 4941 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 104.135291][ T4941] Modules linked in: [ 104.136438][ T4941] CPU: 0 PID: 4941 Comm: syz.0.17 Tainted: G W 5.15.188-syzkaller #0 [ 104.139125][ T4941] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 104.141990][ T4941] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 104.144164][ T4941] pc : __btrfs_unlink_inode+0x908/0xb00 [ 104.145813][ T4941] lr : __btrfs_unlink_inode+0x908/0xb00 [ 104.147438][ T4941] sp : ffff80001fc77a60 [ 104.148540][ T4941] x29: ffff80001fc77b10 x28: ffff0000d8ab6000 x27: ffff0000ea160010 [ 104.150909][ T4941] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d63750b0 [ 104.153252][ T4941] x23: 1ffff00003f8ef54 x22: dfff800000000000 x21: ffff0000ea139d70 [ 104.155453][ T4941] x20: ffff0000de7241b8 x19: 1fffe0001bce4837 x18: 0000000000000001 [ 104.157852][ T4941] x17: 0000000000000000 x16: ffff8000083020fc x15: 00000000ffffffff [ 104.160216][ T4941] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 104.162526][ T4941] x11: 0000000000000000 x10: 0000000000000000 x9 : 825c135b55c6fe00 [ 104.164806][ T4941] x8 : 825c135b55c6fe00 x7 : 0000000000000001 x6 : 0000000000000001 [ 104.167045][ T4941] x5 : ffff80001fc77358 x4 : ffff80001425f400 x3 : ffff80000830220c [ 104.169388][ T4941] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 104.171696][ T4941] Call trace: [ 104.172682][ T4941] __btrfs_unlink_inode+0x908/0xb00 [ 104.174197][ T4941] btrfs_unlink+0x108/0x258 [ 104.175434][ T4941] vfs_unlink+0x2e0/0x4f4 [ 104.176779][ T4941] do_unlinkat+0x31c/0x600 [ 104.178095][ T4941] __arm64_sys_unlinkat+0xe0/0xfc [ 104.179563][ T4941] invoke_syscall+0x98/0x2b8 [ 104.180832][ T4941] el0_svc_common+0x138/0x258 [ 104.182215][ T4941] do_el0_svc+0x58/0x14c [ 104.183420][ T4941] el0_svc+0x78/0x1e0 [ 104.184565][ T4941] el0t_64_sync_handler+0xcc/0xe4 [ 104.185968][ T4941] el0t_64_sync+0x1a0/0x1a4 [ 104.187213][ T4941] irq event stamp: 80252 [ 104.188440][ T4941] hardirqs last enabled at (80251): [] __up_console_sem+0xb4/0x100 [ 104.191166][ T4941] hardirqs last disabled at (80252): [] el1_dbg+0x24/0x80 [ 104.193719][ T4941] softirqs last enabled at (80232): [] handle_softirqs+0xa4c/0xbf0 [ 104.196466][ T4941] softirqs last disabled at (80191): [] __irq_exit_rcu+0x240/0x440 [ 104.199228][ T4941] ---[ end trace 3f261a58dfc76ddb ]--- [ 104.201327][ T4941] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 104.204597][ T4941] BTRFS info (device loop0): forced readonly [ 104.216988][ T304] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 104.219129][ T304] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 104.232846][ T304] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 104.245740][ T304] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 104.250032][ T304] device bridge_slave_1 left promiscuous mode [ 104.251845][ T304] bridge0: port 2(bridge_slave_1) entered disabled state [ 104.295037][ T304] device bridge_slave_0 left promiscuous mode [ 104.297272][ T304] bridge0: port 1(bridge_slave_0) entered disabled state [ 104.433394][ T304] device veth1_macvtap left promiscuous mode [ 104.435142][ T304] device veth0_macvtap left promiscuous mode [ 104.436904][ T304] device veth1_vlan left promiscuous mode [ 104.438669][ T304] device veth0_vlan left promiscuous mode [ 104.519351][ T4964] loop0: detected capacity change from 0 to 32768 [ 104.579946][ T4964] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.18 (4964) [ 104.590911][ T4964] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 104.594763][ T4964] BTRFS info (device loop0): using free space tree [ 104.596602][ T4964] BTRFS info (device loop0): has skinny extents [ 104.662710][ T304] team0 (unregistering): Port device team_slave_1 removed [ 104.665132][ T4909] Bluetooth: hci0: command 0x0419 tx timeout [ 104.676324][ T304] team0 (unregistering): Port device team_slave_0 removed [ 104.680556][ T4964] BTRFS info (device loop0): enabling ssd optimizations [ 104.694973][ T304] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 104.698711][ T4964] FAULT_INJECTION: forcing a failure. [ 104.698711][ T4964] name failslab, interval 1, probability 0, space 0, times 0 [ 104.702129][ T4964] CPU: 0 PID: 4964 Comm: syz.0.18 Tainted: G W 5.15.188-syzkaller #0 [ 104.704745][ T4964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 104.707622][ T4964] Call trace: [ 104.708526][ T4964] dump_backtrace+0x0/0x43c [ 104.709908][ T4964] show_stack+0x2c/0x3c [ 104.711097][ T4964] __dump_stack+0x30/0x40 [ 104.712289][ T4964] dump_stack_lvl+0xf8/0x160 [ 104.713563][ T4964] dump_stack+0x1c/0x5c [ 104.714750][ T4964] should_fail+0x3c0/0x51c [ 104.715991][ T4964] __should_failslab+0xbc/0x10c [ 104.717301][ T4964] should_failslab+0x10/0x28 [ 104.718607][ T4964] slab_pre_alloc_hook+0x64/0xec [ 104.719980][ T4964] kmem_cache_alloc_trace+0x98/0x3fc [ 104.721426][ T4964] btrfs_delete_delayed_dir_index+0x220/0x550 [ 104.723115][ T4964] __btrfs_unlink_inode+0x34c/0xb00 [ 104.724597][ T4964] btrfs_unlink+0x108/0x258 [ 104.725911][ T4964] vfs_unlink+0x2e0/0x4f4 [ 104.727151][ T4964] do_unlinkat+0x31c/0x600 [ 104.728373][ T4964] __arm64_sys_unlinkat+0xe0/0xfc [ 104.729796][ T4964] invoke_syscall+0x98/0x2b8 [ 104.731115][ T4964] el0_svc_common+0x138/0x258 [ 104.732428][ T4964] do_el0_svc+0x58/0x14c [ 104.733603][ T4964] el0_svc+0x78/0x1e0 [ 104.734726][ T4964] el0t_64_sync_handler+0xcc/0xe4 [ 104.736151][ T4964] el0t_64_sync+0x1a0/0x1a4 [ 104.739793][ T4964] ------------[ cut here ]------------ [ 104.741611][ T4964] WARNING: CPU: 1 PID: 4964 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 104.744253][ T4964] Modules linked in: [ 104.745361][ T4964] CPU: 1 PID: 4964 Comm: syz.0.18 Tainted: G W 5.15.188-syzkaller #0 [ 104.748020][ T4964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 104.750803][ T4964] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 104.753004][ T4964] pc : __btrfs_unlink_inode+0x908/0xb00 [ 104.754631][ T4964] lr : __btrfs_unlink_inode+0x908/0xb00 [ 104.756186][ T4964] sp : ffff80001fdb7a60 [ 104.757404][ T4964] x29: ffff80001fdb7b10 x28: ffff0000c8e26000 x27: ffff0000ea160410 [ 104.759684][ T4964] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000e921d0b0 [ 104.761892][ T4964] x23: 1ffff00003fb6f54 x22: dfff800000000000 x21: ffff0000ea13bae0 [ 104.764168][ T4964] x20: ffff0000de724318 x19: 1fffe0001bce4863 x18: 0000000000000001 [ 104.766431][ T4964] x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff [ 104.768662][ T4964] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 104.770921][ T4964] x11: 0000000000000000 x10: 0000000000000000 x9 : 427885e67e474d00 [ 104.773220][ T4964] x8 : 427885e67e474d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 104.775539][ T4964] x5 : ffff80001fdb7358 x4 : ffff80001425f400 x3 : ffff8000085051a4 [ 104.777827][ T4964] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 104.780169][ T4964] Call trace: [ 104.781092][ T4964] __btrfs_unlink_inode+0x908/0xb00 [ 104.782573][ T4964] btrfs_unlink+0x108/0x258 [ 104.783836][ T4964] vfs_unlink+0x2e0/0x4f4 [ 104.785062][ T4964] do_unlinkat+0x31c/0x600 [ 104.786292][ T4964] __arm64_sys_unlinkat+0xe0/0xfc [ 104.787747][ T4964] invoke_syscall+0x98/0x2b8 [ 104.789062][ T4964] el0_svc_common+0x138/0x258 [ 104.790370][ T4964] do_el0_svc+0x58/0x14c [ 104.791561][ T4964] el0_svc+0x78/0x1e0 [ 104.792724][ T4964] el0t_64_sync_handler+0xcc/0xe4 [ 104.794330][ T4964] el0t_64_sync+0x1a0/0x1a4 [ 104.795606][ T4964] irq event stamp: 79434 [ 104.796774][ T4964] hardirqs last enabled at (79433): [] __up_console_sem+0xb4/0x100 [ 104.799490][ T4964] hardirqs last disabled at (79434): [] el1_dbg+0x24/0x80 [ 104.801886][ T4964] softirqs last enabled at (79414): [] handle_softirqs+0xa4c/0xbf0 [ 104.804620][ T4964] softirqs last disabled at (79379): [] __irq_exit_rcu+0x240/0x440 [ 104.807266][ T4964] ---[ end trace 3f261a58dfc76ddc ]--- [ 104.812866][ T4964] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 104.815540][ T4964] BTRFS info (device loop0): forced readonly [ 104.842333][ T304] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 104.988640][ T304] bond0 (unregistering): Released all slaves [ 105.132532][ T4986] loop0: detected capacity change from 0 to 32768 [ 105.205819][ T4986] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.19 (4986) [ 105.213344][ T4986] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 105.215746][ T4986] BTRFS info (device loop0): using free space tree [ 105.217482][ T4986] BTRFS info (device loop0): has skinny extents [ 105.236114][ T4986] BTRFS info (device loop0): enabling ssd optimizations [ 105.245166][ T4986] FAULT_INJECTION: forcing a failure. [ 105.245166][ T4986] name failslab, interval 1, probability 0, space 0, times 0 [ 105.248735][ T4986] CPU: 0 PID: 4986 Comm: syz.0.19 Tainted: G W 5.15.188-syzkaller #0 [ 105.251344][ T4986] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 105.254031][ T4986] Call trace: [ 105.254989][ T4986] dump_backtrace+0x0/0x43c [ 105.256293][ T4986] show_stack+0x2c/0x3c [ 105.257505][ T4986] __dump_stack+0x30/0x40 [ 105.258688][ T4986] dump_stack_lvl+0xf8/0x160 [ 105.260018][ T4986] dump_stack+0x1c/0x5c [ 105.261206][ T4986] should_fail+0x3c0/0x51c [ 105.262379][ T4986] __should_failslab+0xbc/0x10c [ 105.263728][ T4986] should_failslab+0x10/0x28 [ 105.264981][ T4986] slab_pre_alloc_hook+0x64/0xec [ 105.266351][ T4986] kmem_cache_alloc_trace+0x98/0x3fc [ 105.267929][ T4986] btrfs_delete_delayed_dir_index+0x220/0x550 [ 105.269429][ T4986] __btrfs_unlink_inode+0x34c/0xb00 [ 105.270673][ T4986] btrfs_unlink+0x108/0x258 [ 105.271851][ T4986] vfs_unlink+0x2e0/0x4f4 [ 105.273109][ T4986] do_unlinkat+0x31c/0x600 [ 105.274344][ T4986] __arm64_sys_unlinkat+0xe0/0xfc [ 105.275796][ T4986] invoke_syscall+0x98/0x2b8 [ 105.277108][ T4986] el0_svc_common+0x138/0x258 [ 105.278424][ T4986] do_el0_svc+0x58/0x14c [ 105.279673][ T4986] el0_svc+0x78/0x1e0 [ 105.280812][ T4986] el0t_64_sync_handler+0xcc/0xe4 [ 105.282283][ T4986] el0t_64_sync+0x1a0/0x1a4 [ 105.286267][ T4986] ------------[ cut here ]------------ [ 105.288013][ T4986] WARNING: CPU: 0 PID: 4986 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 105.290684][ T4986] Modules linked in: [ 105.291786][ T4986] CPU: 0 PID: 4986 Comm: syz.0.19 Tainted: G W 5.15.188-syzkaller #0 [ 105.294380][ T4986] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 105.297166][ T4986] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 105.299371][ T4986] pc : __btrfs_unlink_inode+0x908/0xb00 [ 105.300926][ T4986] lr : __btrfs_unlink_inode+0x908/0xb00 [ 105.302531][ T4986] sp : ffff80001fec7a60 [ 105.303702][ T4986] x29: ffff80001fec7b10 x28: ffff0000c1544000 x27: ffff0000ea160810 [ 105.305997][ T4986] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ce0e30b0 [ 105.308218][ T4986] x23: 1ffff00003fd8f54 x22: dfff800000000000 x21: ffff0000ea13e220 [ 105.310477][ T4986] x20: ffff0000de724478 x19: 1fffe0001bce488f x18: 0000000000000001 [ 105.312761][ T4986] x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff [ 105.315023][ T4986] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 105.317341][ T4986] x11: 0000000000000000 x10: 0000000000000000 x9 : 991e51effba76300 [ 105.319612][ T4986] x8 : 991e51effba76300 x7 : 0000000000000001 x6 : 0000000000000001 [ 105.321891][ T4986] x5 : ffff80001fec7358 x4 : ffff80001425f400 x3 : ffff8000085051a4 [ 105.324214][ T4986] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 105.326466][ T4986] Call trace: [ 105.327374][ T4986] __btrfs_unlink_inode+0x908/0xb00 [ 105.328828][ T4986] btrfs_unlink+0x108/0x258 [ 105.330192][ T4986] vfs_unlink+0x2e0/0x4f4 [ 105.331537][ T4986] do_unlinkat+0x31c/0x600 [ 105.332952][ T4986] __arm64_sys_unlinkat+0xe0/0xfc [ 105.334406][ T4986] invoke_syscall+0x98/0x2b8 [ 105.335837][ T4986] el0_svc_common+0x138/0x258 [ 105.337204][ T4986] do_el0_svc+0x58/0x14c [ 105.338438][ T4986] el0_svc+0x78/0x1e0 [ 105.339622][ T4986] el0t_64_sync_handler+0xcc/0xe4 [ 105.341063][ T4986] el0t_64_sync+0x1a0/0x1a4 [ 105.342389][ T4986] irq event stamp: 79350 [ 105.343576][ T4986] hardirqs last enabled at (79349): [] __up_console_sem+0xb4/0x100 [ 105.346330][ T4986] hardirqs last disabled at (79350): [] el1_dbg+0x24/0x80 [ 105.348766][ T4986] softirqs last enabled at (79330): [] handle_softirqs+0xa4c/0xbf0 [ 105.351516][ T4986] softirqs last disabled at (79305): [] __irq_exit_rcu+0x240/0x440 [ 105.354244][ T4986] ---[ end trace 3f261a58dfc76ddd ]--- [ 105.356158][ T4986] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 105.358824][ T4986] BTRFS info (device loop0): forced readonly [ 105.647564][ T5008] loop0: detected capacity change from 0 to 32768 [ 105.695347][ T5008] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.20 (5008) [ 105.764659][ T5008] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 105.767249][ T5008] BTRFS info (device loop0): using free space tree [ 105.769196][ T5008] BTRFS info (device loop0): has skinny extents [ 105.784760][ T5008] BTRFS info (device loop0): enabling ssd optimizations [ 105.794304][ T5008] FAULT_INJECTION: forcing a failure. [ 105.794304][ T5008] name failslab, interval 1, probability 0, space 0, times 0 [ 105.797716][ T5008] CPU: 0 PID: 5008 Comm: syz.0.20 Tainted: G W 5.15.188-syzkaller #0 [ 105.800264][ T5008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 105.802921][ T5008] Call trace: [ 105.803904][ T5008] dump_backtrace+0x0/0x43c [ 105.805185][ T5008] show_stack+0x2c/0x3c [ 105.806385][ T5008] __dump_stack+0x30/0x40 [ 105.807512][ T5008] dump_stack_lvl+0xf8/0x160 [ 105.808756][ T5008] dump_stack+0x1c/0x5c [ 105.809960][ T5008] should_fail+0x3c0/0x51c [ 105.811224][ T5008] __should_failslab+0xbc/0x10c [ 105.812549][ T5008] should_failslab+0x10/0x28 [ 105.813883][ T5008] slab_pre_alloc_hook+0x64/0xec [ 105.815275][ T5008] kmem_cache_alloc_trace+0x98/0x3fc [ 105.816744][ T5008] btrfs_delete_delayed_dir_index+0x220/0x550 [ 105.818404][ T5008] __btrfs_unlink_inode+0x34c/0xb00 [ 105.819934][ T5008] btrfs_unlink+0x108/0x258 [ 105.821202][ T5008] vfs_unlink+0x2e0/0x4f4 [ 105.822353][ T5008] do_unlinkat+0x31c/0x600 [ 105.823604][ T5008] __arm64_sys_unlinkat+0xe0/0xfc [ 105.824992][ T5008] invoke_syscall+0x98/0x2b8 [ 105.826262][ T5008] el0_svc_common+0x138/0x258 [ 105.827608][ T5008] do_el0_svc+0x58/0x14c [ 105.828779][ T5008] el0_svc+0x78/0x1e0 [ 105.829871][ T5008] el0t_64_sync_handler+0xcc/0xe4 [ 105.831293][ T5008] el0t_64_sync+0x1a0/0x1a4 [ 105.837359][ T5008] ------------[ cut here ]------------ [ 105.839140][ T5008] WARNING: CPU: 0 PID: 5008 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 105.841856][ T5008] Modules linked in: [ 105.842897][ T5008] CPU: 0 PID: 5008 Comm: syz.0.20 Tainted: G W 5.15.188-syzkaller #0 [ 105.845549][ T5008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 105.848426][ T5008] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 105.850634][ T5008] pc : __btrfs_unlink_inode+0x908/0xb00 [ 105.852180][ T5008] lr : __btrfs_unlink_inode+0x908/0xb00 [ 105.853715][ T5008] sp : ffff80001fc77a60 [ 105.854869][ T5008] x29: ffff80001fc77b10 x28: ffff0000cfb98000 x27: ffff0000ea160c10 [ 105.857197][ T5008] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cbb580b0 [ 105.859439][ T5008] x23: 1ffff00003f8ef54 x22: dfff800000000000 x21: ffff0000e27d89d0 [ 105.861615][ T5008] x20: ffff0000de7245d8 x19: 1fffe0001bce48bb x18: 0000000000000001 [ 105.863914][ T5008] x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff [ 105.866069][ T5008] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 105.868342][ T5008] x11: 0000000000000000 x10: 0000000000000000 x9 : 4f2e5ad0d18d4000 [ 105.870650][ T5008] x8 : 4f2e5ad0d18d4000 x7 : 0000000000000001 x6 : 0000000000000001 [ 105.872966][ T5008] x5 : ffff80001fc77358 x4 : ffff80001425f400 x3 : ffff8000085051a4 [ 105.875201][ T5008] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 105.877416][ T5008] Call trace: [ 105.878351][ T5008] __btrfs_unlink_inode+0x908/0xb00 [ 105.879848][ T5008] btrfs_unlink+0x108/0x258 [ 105.881188][ T5008] vfs_unlink+0x2e0/0x4f4 [ 105.882419][ T5008] do_unlinkat+0x31c/0x600 [ 105.883692][ T5008] __arm64_sys_unlinkat+0xe0/0xfc [ 105.885112][ T5008] invoke_syscall+0x98/0x2b8 [ 105.886479][ T5008] el0_svc_common+0x138/0x258 [ 105.887715][ T5008] do_el0_svc+0x58/0x14c [ 105.888969][ T5008] el0_svc+0x78/0x1e0 [ 105.890265][ T5008] el0t_64_sync_handler+0xcc/0xe4 [ 105.891681][ T5008] el0t_64_sync+0x1a0/0x1a4 [ 105.893028][ T5008] irq event stamp: 79334 [ 105.894297][ T5008] hardirqs last enabled at (79333): [] __up_console_sem+0xb4/0x100 [ 105.897041][ T5008] hardirqs last disabled at (79334): [] el1_dbg+0x24/0x80 [ 105.899556][ T5008] softirqs last enabled at (79314): [] handle_softirqs+0xa4c/0xbf0 [ 105.902406][ T5008] softirqs last disabled at (79265): [] __irq_exit_rcu+0x240/0x440 [ 105.905114][ T5008] ---[ end trace 3f261a58dfc76dde ]--- [ 105.909727][ T5008] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 105.912427][ T5008] BTRFS info (device loop0): forced readonly [ 106.214887][ T5030] loop0: detected capacity change from 0 to 32768 [ 106.268855][ T5030] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.21 (5030) [ 106.276857][ T5030] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 106.279400][ T5030] BTRFS info (device loop0): using free space tree [ 106.281354][ T5030] BTRFS info (device loop0): has skinny extents [ 106.302170][ T5030] BTRFS info (device loop0): enabling ssd optimizations [ 106.312784][ T5030] FAULT_INJECTION: forcing a failure. [ 106.312784][ T5030] name failslab, interval 1, probability 0, space 0, times 0 [ 106.316602][ T5030] CPU: 1 PID: 5030 Comm: syz.0.21 Tainted: G W 5.15.188-syzkaller #0 [ 106.319246][ T5030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 106.322058][ T5030] Call trace: [ 106.322868][ T5030] dump_backtrace+0x0/0x43c [ 106.324099][ T5030] show_stack+0x2c/0x3c [ 106.325303][ T5030] __dump_stack+0x30/0x40 [ 106.326484][ T5030] dump_stack_lvl+0xf8/0x160 [ 106.327742][ T5030] dump_stack+0x1c/0x5c [ 106.328879][ T5030] should_fail+0x3c0/0x51c [ 106.330055][ T5030] __should_failslab+0xbc/0x10c [ 106.331423][ T5030] should_failslab+0x10/0x28 [ 106.332708][ T5030] slab_pre_alloc_hook+0x64/0xec [ 106.334087][ T5030] kmem_cache_alloc_trace+0x98/0x3fc [ 106.335663][ T5030] btrfs_delete_delayed_dir_index+0x220/0x550 [ 106.337390][ T5030] __btrfs_unlink_inode+0x34c/0xb00 [ 106.338807][ T5030] btrfs_unlink+0x108/0x258 [ 106.340108][ T5030] vfs_unlink+0x2e0/0x4f4 [ 106.341384][ T5030] do_unlinkat+0x31c/0x600 [ 106.342621][ T5030] __arm64_sys_unlinkat+0xe0/0xfc [ 106.344112][ T5030] invoke_syscall+0x98/0x2b8 [ 106.345384][ T5030] el0_svc_common+0x138/0x258 [ 106.346669][ T5030] do_el0_svc+0x58/0x14c [ 106.347826][ T5030] el0_svc+0x78/0x1e0 [ 106.348907][ T5030] el0t_64_sync_handler+0xcc/0xe4 [ 106.350308][ T5030] el0t_64_sync+0x1a0/0x1a4 [ 106.364890][ T5030] ------------[ cut here ]------------ [ 106.366766][ T5030] WARNING: CPU: 1 PID: 5030 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 106.369477][ T5030] Modules linked in: [ 106.370602][ T5030] CPU: 1 PID: 5030 Comm: syz.0.21 Tainted: G W 5.15.188-syzkaller #0 [ 106.373222][ T5030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 106.376227][ T5030] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 106.378381][ T5030] pc : __btrfs_unlink_inode+0x908/0xb00 [ 106.379949][ T5030] lr : __btrfs_unlink_inode+0x908/0xb00 [ 106.381605][ T5030] sp : ffff800020117a60 [ 106.382722][ T5030] x29: ffff800020117b10 x28: ffff0000d7bca000 x27: ffff0000e2788810 [ 106.385002][ T5030] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ce0db210 [ 106.387278][ T5030] x23: 1ffff00004022f54 x22: dfff800000000000 x21: ffff0000ea174e80 [ 106.389555][ T5030] x20: ffff0000de7a7688 x19: 1fffe0001bcf4ed1 x18: 0000000000000001 [ 106.391830][ T5030] x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff [ 106.394152][ T5030] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 106.396451][ T5030] x11: 0000000000000000 x10: 0000000000000000 x9 : b1dcbeaaead36300 [ 106.398649][ T5030] x8 : b1dcbeaaead36300 x7 : 0000000000000001 x6 : 0000000000000001 [ 106.400897][ T5030] x5 : ffff800020117358 x4 : ffff80001425f400 x3 : ffff8000085051a4 [ 106.403160][ T5030] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 106.405440][ T5030] Call trace: [ 106.406374][ T5030] __btrfs_unlink_inode+0x908/0xb00 [ 106.407826][ T5030] btrfs_unlink+0x108/0x258 [ 106.409039][ T5030] vfs_unlink+0x2e0/0x4f4 [ 106.410232][ T5030] do_unlinkat+0x31c/0x600 [ 106.411494][ T5030] __arm64_sys_unlinkat+0xe0/0xfc [ 106.412907][ T5030] invoke_syscall+0x98/0x2b8 [ 106.414228][ T5030] el0_svc_common+0x138/0x258 [ 106.415520][ T5030] do_el0_svc+0x58/0x14c [ 106.416646][ T5030] el0_svc+0x78/0x1e0 [ 106.417876][ T5030] el0t_64_sync_handler+0xcc/0xe4 [ 106.419359][ T5030] el0t_64_sync+0x1a0/0x1a4 [ 106.420606][ T5030] irq event stamp: 80398 [ 106.421786][ T5030] hardirqs last enabled at (80397): [] __up_console_sem+0xb4/0x100 [ 106.424534][ T5030] hardirqs last disabled at (80398): [] el1_dbg+0x24/0x80 [ 106.426864][ T5030] softirqs last enabled at (80374): [] handle_softirqs+0xa4c/0xbf0 [ 106.429428][ T5030] softirqs last disabled at (80281): [] __irq_exit_rcu+0x240/0x440 [ 106.432050][ T5030] ---[ end trace 3f261a58dfc76ddf ]--- [ 106.448413][ T5030] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 106.451023][ T5030] BTRFS info (device loop0): forced readonly [ 106.834409][ T5052] loop0: detected capacity change from 0 to 32768 [ 106.858039][ T5052] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.22 (5052) [ 106.867323][ T5052] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 106.869838][ T5052] BTRFS info (device loop0): using free space tree [ 106.871679][ T5052] BTRFS info (device loop0): has skinny extents [ 106.891216][ T5052] BTRFS info (device loop0): enabling ssd optimizations [ 106.900700][ T5052] FAULT_INJECTION: forcing a failure. [ 106.900700][ T5052] name failslab, interval 1, probability 0, space 0, times 0 [ 106.904672][ T5052] CPU: 1 PID: 5052 Comm: syz.0.22 Tainted: G W 5.15.188-syzkaller #0 [ 106.907312][ T5052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 106.910091][ T5052] Call trace: [ 106.911018][ T5052] dump_backtrace+0x0/0x43c [ 106.912270][ T5052] show_stack+0x2c/0x3c [ 106.913416][ T5052] __dump_stack+0x30/0x40 [ 106.914626][ T5052] dump_stack_lvl+0xf8/0x160 [ 106.915887][ T5052] dump_stack+0x1c/0x5c [ 106.917057][ T5052] should_fail+0x3c0/0x51c [ 106.918312][ T5052] __should_failslab+0xbc/0x10c [ 106.919627][ T5052] should_failslab+0x10/0x28 [ 106.920944][ T5052] slab_pre_alloc_hook+0x64/0xec [ 106.922347][ T5052] kmem_cache_alloc+0x94/0x3e4 [ 106.923669][ T5052] btrfs_alloc_path+0x5c/0x68 [ 106.924949][ T5052] __btrfs_unlink_inode+0x1d8/0xb00 [ 106.926411][ T5052] btrfs_unlink+0x108/0x258 [ 106.927631][ T5052] vfs_unlink+0x2e0/0x4f4 [ 106.928801][ T5052] do_unlinkat+0x31c/0x600 [ 106.930055][ T5052] __arm64_sys_unlinkat+0xe0/0xfc [ 106.931496][ T5052] invoke_syscall+0x98/0x2b8 [ 106.932754][ T5052] el0_svc_common+0x138/0x258 [ 106.934067][ T5052] do_el0_svc+0x58/0x14c [ 106.935265][ T5052] el0_svc+0x78/0x1e0 [ 106.936347][ T5052] el0t_64_sync_handler+0xcc/0xe4 [ 106.937779][ T5052] el0t_64_sync+0x1a0/0x1a4 [ 107.482474][ T5073] loop0: detected capacity change from 0 to 32768 [ 107.521517][ T5073] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.23 (5073) [ 107.537247][ T5073] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 107.539663][ T5073] BTRFS info (device loop0): using free space tree [ 107.541401][ T5073] BTRFS info (device loop0): has skinny extents [ 107.581834][ T5073] BTRFS info (device loop0): enabling ssd optimizations [ 107.591215][ T5073] FAULT_INJECTION: forcing a failure. [ 107.591215][ T5073] name failslab, interval 1, probability 0, space 0, times 0 [ 107.595291][ T5073] CPU: 0 PID: 5073 Comm: syz.0.23 Tainted: G W 5.15.188-syzkaller #0 [ 107.597781][ T5073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.600453][ T5073] Call trace: [ 107.601334][ T5073] dump_backtrace+0x0/0x43c [ 107.602552][ T5073] show_stack+0x2c/0x3c [ 107.603627][ T5073] __dump_stack+0x30/0x40 [ 107.604794][ T5073] dump_stack_lvl+0xf8/0x160 [ 107.606046][ T5073] dump_stack+0x1c/0x5c [ 107.607229][ T5073] should_fail+0x3c0/0x51c [ 107.608395][ T5073] __should_failslab+0xbc/0x10c [ 107.609751][ T5073] should_failslab+0x10/0x28 [ 107.611026][ T5073] slab_pre_alloc_hook+0x64/0xec [ 107.612344][ T5073] kmem_cache_alloc_trace+0x98/0x3fc [ 107.613777][ T5073] btrfs_delete_delayed_dir_index+0x220/0x550 [ 107.615444][ T5073] __btrfs_unlink_inode+0x34c/0xb00 [ 107.616914][ T5073] btrfs_unlink+0x108/0x258 [ 107.618127][ T5073] vfs_unlink+0x2e0/0x4f4 [ 107.619363][ T5073] do_unlinkat+0x31c/0x600 [ 107.620575][ T5073] __arm64_sys_unlinkat+0xe0/0xfc [ 107.622016][ T5073] invoke_syscall+0x98/0x2b8 [ 107.623321][ T5073] el0_svc_common+0x138/0x258 [ 107.624595][ T5073] do_el0_svc+0x58/0x14c [ 107.625722][ T5073] el0_svc+0x78/0x1e0 [ 107.626815][ T5073] el0t_64_sync_handler+0xcc/0xe4 [ 107.628276][ T5073] el0t_64_sync+0x1a0/0x1a4 [ 107.633770][ T5073] ------------[ cut here ]------------ [ 107.635493][ T5073] WARNING: CPU: 0 PID: 5073 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 107.638008][ T5073] Modules linked in: [ 107.639018][ T5073] CPU: 0 PID: 5073 Comm: syz.0.23 Tainted: G W 5.15.188-syzkaller #0 [ 107.641526][ T5073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 107.644284][ T5073] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 107.646425][ T5073] pc : __btrfs_unlink_inode+0x908/0xb00 [ 107.647922][ T5073] lr : __btrfs_unlink_inode+0x908/0xb00 [ 107.649451][ T5073] sp : ffff800020287a60 [ 107.650614][ T5073] x29: ffff800020287b10 x28: ffff0000cdeea000 x27: ffff0000ea161010 [ 107.652901][ T5073] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000db24bb00 [ 107.655133][ T5073] x23: 1ffff00004050f54 x22: dfff800000000000 x21: ffff0000e27dbae0 [ 107.657334][ T5073] x20: ffff0000de724738 x19: 1fffe0001bce48e7 x18: 0000000000000001 [ 107.659542][ T5073] x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff [ 107.661747][ T5073] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 107.663924][ T5073] x11: 0000000000000000 x10: 0000000000000000 x9 : bafe070d08f19d00 [ 107.666167][ T5073] x8 : bafe070d08f19d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 107.668351][ T5073] x5 : ffff800020287358 x4 : ffff80001425f400 x3 : ffff8000085051a4 [ 107.670610][ T5073] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 107.672838][ T5073] Call trace: [ 107.673742][ T5073] __btrfs_unlink_inode+0x908/0xb00 [ 107.675176][ T5073] btrfs_unlink+0x108/0x258 [ 107.676420][ T5073] vfs_unlink+0x2e0/0x4f4 [ 107.677633][ T5073] do_unlinkat+0x31c/0x600 [ 107.678812][ T5073] __arm64_sys_unlinkat+0xe0/0xfc [ 107.680161][ T5073] invoke_syscall+0x98/0x2b8 [ 107.681445][ T5073] el0_svc_common+0x138/0x258 [ 107.682721][ T5073] do_el0_svc+0x58/0x14c [ 107.683886][ T5073] el0_svc+0x78/0x1e0 [ 107.684995][ T5073] el0t_64_sync_handler+0xcc/0xe4 [ 107.686420][ T5073] el0t_64_sync+0x1a0/0x1a4 [ 107.687651][ T5073] irq event stamp: 80724 [ 107.688844][ T5073] hardirqs last enabled at (80723): [] __up_console_sem+0xb4/0x100 [ 107.691567][ T5073] hardirqs last disabled at (80724): [] el1_dbg+0x24/0x80 [ 107.693969][ T5073] softirqs last enabled at (80704): [] handle_softirqs+0xa4c/0xbf0 [ 107.696646][ T5073] softirqs last disabled at (80523): [] __irq_exit_rcu+0x240/0x440 [ 107.699271][ T5073] ---[ end trace 3f261a58dfc76de0 ]--- [ 107.702329][ T5073] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 107.706453][ T5073] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:47 executed programs: 11 [ 108.069920][ T5094] loop0: detected capacity change from 0 to 32768 [ 108.108940][ T5094] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.24 (5094) [ 108.118201][ T5094] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 108.120662][ T5094] BTRFS info (device loop0): using free space tree [ 108.122556][ T5094] BTRFS info (device loop0): has skinny extents [ 108.143396][ T5094] BTRFS info (device loop0): enabling ssd optimizations [ 108.150280][ T5094] FAULT_INJECTION: forcing a failure. [ 108.150280][ T5094] name failslab, interval 1, probability 0, space 0, times 0 [ 108.154458][ T5094] CPU: 0 PID: 5094 Comm: syz.0.24 Tainted: G W 5.15.188-syzkaller #0 [ 108.157073][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.159877][ T5094] Call trace: [ 108.160809][ T5094] dump_backtrace+0x0/0x43c [ 108.162054][ T5094] show_stack+0x2c/0x3c [ 108.163255][ T5094] __dump_stack+0x30/0x40 [ 108.164437][ T5094] dump_stack_lvl+0xf8/0x160 [ 108.165744][ T5094] dump_stack+0x1c/0x5c [ 108.166851][ T5094] should_fail+0x3c0/0x51c [ 108.168073][ T5094] __should_failslab+0xbc/0x10c [ 108.169347][ T5094] should_failslab+0x10/0x28 [ 108.170623][ T5094] slab_pre_alloc_hook+0x64/0xec [ 108.172052][ T5094] kmem_cache_alloc_trace+0x98/0x3fc [ 108.173526][ T5094] btrfs_delete_delayed_dir_index+0x220/0x550 [ 108.175236][ T5094] __btrfs_unlink_inode+0x34c/0xb00 [ 108.176675][ T5094] btrfs_unlink+0x108/0x258 [ 108.177912][ T5094] vfs_unlink+0x2e0/0x4f4 [ 108.179103][ T5094] do_unlinkat+0x31c/0x600 [ 108.180366][ T5094] __arm64_sys_unlinkat+0xe0/0xfc [ 108.181752][ T5094] invoke_syscall+0x98/0x2b8 [ 108.183014][ T5094] el0_svc_common+0x138/0x258 [ 108.184277][ T5094] do_el0_svc+0x58/0x14c [ 108.185474][ T5094] el0_svc+0x78/0x1e0 [ 108.186549][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 108.187932][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 108.191396][ T5094] ------------[ cut here ]------------ [ 108.193108][ T5094] WARNING: CPU: 0 PID: 5094 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 108.195774][ T5094] Modules linked in: [ 108.196833][ T5094] CPU: 0 PID: 5094 Comm: syz.0.24 Tainted: G W 5.15.188-syzkaller #0 [ 108.199375][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.202193][ T5094] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 108.204442][ T5094] pc : __btrfs_unlink_inode+0x908/0xb00 [ 108.205994][ T5094] lr : __btrfs_unlink_inode+0x908/0xb00 [ 108.207566][ T5094] sp : ffff800020357a60 [ 108.208690][ T5094] x29: ffff800020357b10 x28: ffff0000d23bc000 x27: ffff0000ea161410 [ 108.210951][ T5094] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c5df0bb0 [ 108.213185][ T5094] x23: 1ffff0000406af54 x22: dfff800000000000 x21: ffff0000e27dd850 [ 108.215388][ T5094] x20: ffff0000de724898 x19: 1fffe0001bce4913 x18: 0000000000000001 [ 108.217620][ T5094] x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff [ 108.219916][ T5094] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 108.222189][ T5094] x11: 0000000000000000 x10: 0000000000000000 x9 : c2deddeeb9016900 [ 108.224418][ T5094] x8 : c2deddeeb9016900 x7 : 0000000000000001 x6 : 0000000000000001 [ 108.226644][ T5094] x5 : ffff800020357358 x4 : ffff80001425f400 x3 : ffff8000085051a4 [ 108.228831][ T5094] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 108.231074][ T5094] Call trace: [ 108.231994][ T5094] __btrfs_unlink_inode+0x908/0xb00 [ 108.233436][ T5094] btrfs_unlink+0x108/0x258 [ 108.234636][ T5094] vfs_unlink+0x2e0/0x4f4 [ 108.235832][ T5094] do_unlinkat+0x31c/0x600 [ 108.237030][ T5094] __arm64_sys_unlinkat+0xe0/0xfc [ 108.238499][ T5094] invoke_syscall+0x98/0x2b8 [ 108.239778][ T5094] el0_svc_common+0x138/0x258 [ 108.241114][ T5094] do_el0_svc+0x58/0x14c [ 108.242288][ T5094] el0_svc+0x78/0x1e0 [ 108.243347][ T5094] el0t_64_sync_handler+0xcc/0xe4 [ 108.244699][ T5094] el0t_64_sync+0x1a0/0x1a4 [ 108.245894][ T5094] irq event stamp: 79476 [ 108.247037][ T5094] hardirqs last enabled at (79475): [] __up_console_sem+0xb4/0x100 [ 108.249632][ T5094] hardirqs last disabled at (79476): [] el1_dbg+0x24/0x80 [ 108.252020][ T5094] softirqs last enabled at (79456): [] handle_softirqs+0xa4c/0xbf0 [ 108.254570][ T5094] softirqs last disabled at (79399): [] __irq_exit_rcu+0x240/0x440 [ 108.257098][ T5094] ---[ end trace 3f261a58dfc76de1 ]--- [ 108.261424][ T5094] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 108.264355][ T5094] BTRFS info (device loop0): forced readonly [ 108.531752][ T5116] loop0: detected capacity change from 0 to 32768 [ 108.575040][ T5116] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.25 (5116) [ 108.621232][ T5116] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 108.623826][ T5116] BTRFS info (device loop0): using free space tree [ 108.625660][ T5116] BTRFS info (device loop0): has skinny extents [ 108.641087][ T5116] BTRFS info (device loop0): enabling ssd optimizations [ 108.649473][ T5116] FAULT_INJECTION: forcing a failure. [ 108.649473][ T5116] name failslab, interval 1, probability 0, space 0, times 0 [ 108.653093][ T5116] CPU: 0 PID: 5116 Comm: syz.0.25 Tainted: G W 5.15.188-syzkaller #0 [ 108.655748][ T5116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.658709][ T5116] Call trace: [ 108.659641][ T5116] dump_backtrace+0x0/0x43c [ 108.660919][ T5116] show_stack+0x2c/0x3c [ 108.662105][ T5116] __dump_stack+0x30/0x40 [ 108.663301][ T5116] dump_stack_lvl+0xf8/0x160 [ 108.664623][ T5116] dump_stack+0x1c/0x5c [ 108.665762][ T5116] should_fail+0x3c0/0x51c [ 108.667012][ T5116] __should_failslab+0xbc/0x10c [ 108.668369][ T5116] should_failslab+0x10/0x28 [ 108.669687][ T5116] slab_pre_alloc_hook+0x64/0xec [ 108.671107][ T5116] kmem_cache_alloc_trace+0x98/0x3fc [ 108.672538][ T5116] btrfs_delete_delayed_dir_index+0x220/0x550 [ 108.674313][ T5116] __btrfs_unlink_inode+0x34c/0xb00 [ 108.675835][ T5116] btrfs_unlink+0x108/0x258 [ 108.677167][ T5116] vfs_unlink+0x2e0/0x4f4 [ 108.678382][ T5116] do_unlinkat+0x31c/0x600 [ 108.679668][ T5116] __arm64_sys_unlinkat+0xe0/0xfc [ 108.681171][ T5116] invoke_syscall+0x98/0x2b8 [ 108.682487][ T5116] el0_svc_common+0x138/0x258 [ 108.683838][ T5116] do_el0_svc+0x58/0x14c [ 108.685054][ T5116] el0_svc+0x78/0x1e0 [ 108.686211][ T5116] el0t_64_sync_handler+0xcc/0xe4 [ 108.687707][ T5116] el0t_64_sync+0x1a0/0x1a4 [ 108.692579][ T5116] ------------[ cut here ]------------ [ 108.694484][ T5116] WARNING: CPU: 0 PID: 5116 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 108.697130][ T5116] Modules linked in: [ 108.698204][ T5116] CPU: 0 PID: 5116 Comm: syz.0.25 Tainted: G W 5.15.188-syzkaller #0 [ 108.700861][ T5116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.703728][ T5116] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 108.705900][ T5116] pc : __btrfs_unlink_inode+0x908/0xb00 [ 108.707490][ T5116] lr : __btrfs_unlink_inode+0x908/0xb00 [ 108.709072][ T5116] sp : ffff800020957a60 [ 108.710225][ T5116] x29: ffff800020957b10 x28: ffff0000dca22000 x27: ffff0000ea161810 [ 108.712513][ T5116] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cdd1d9a0 [ 108.714816][ T5116] x23: 1ffff0000412af54 x22: dfff800000000000 x21: ffff0000e27debf0 [ 108.717012][ T5116] x20: ffff0000de7249f8 x19: 1fffe0001bce493f x18: 0000000000000001 [ 108.719402][ T5116] x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff [ 108.721671][ T5116] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 108.723904][ T5116] x11: 0000000000000000 x10: 0000000000000000 x9 : 7bc5fbd8d77eb300 [ 108.726197][ T5116] x8 : 7bc5fbd8d77eb300 x7 : 0000000000000001 x6 : 0000000000000001 [ 108.728573][ T5116] x5 : ffff800020957358 x4 : ffff80001425f400 x3 : ffff8000085051a4 [ 108.730892][ T5116] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 108.733197][ T5116] Call trace: [ 108.734141][ T5116] __btrfs_unlink_inode+0x908/0xb00 [ 108.735711][ T5116] btrfs_unlink+0x108/0x258 [ 108.737011][ T5116] vfs_unlink+0x2e0/0x4f4 [ 108.738261][ T5116] do_unlinkat+0x31c/0x600 [ 108.739527][ T5116] __arm64_sys_unlinkat+0xe0/0xfc [ 108.740989][ T5116] invoke_syscall+0x98/0x2b8 [ 108.742300][ T5116] el0_svc_common+0x138/0x258 [ 108.743623][ T5116] do_el0_svc+0x58/0x14c [ 108.744792][ T5116] el0_svc+0x78/0x1e0 [ 108.745994][ T5116] el0t_64_sync_handler+0xcc/0xe4 [ 108.747372][ T5116] el0t_64_sync+0x1a0/0x1a4 [ 108.748659][ T5116] irq event stamp: 79162 [ 108.749887][ T5116] hardirqs last enabled at (79161): [] __up_console_sem+0xb4/0x100 [ 108.752674][ T5116] hardirqs last disabled at (79162): [] el1_dbg+0x24/0x80 [ 108.755167][ T5116] softirqs last enabled at (79150): [] handle_softirqs+0xa4c/0xbf0 [ 108.757872][ T5116] softirqs last disabled at (79135): [] __irq_exit_rcu+0x240/0x440 [ 108.760580][ T5116] ---[ end trace 3f261a58dfc76de2 ]--- [ 108.765139][ T5116] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 108.767865][ T5116] BTRFS info (device loop0): forced readonly [ 109.040452][ T5138] loop0: detected capacity change from 0 to 32768 [ 109.095064][ T5138] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.26 (5138) [ 109.135989][ T5138] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 109.138432][ T5138] BTRFS info (device loop0): using free space tree [ 109.141139][ T5138] BTRFS info (device loop0): has skinny extents [ 109.157977][ T5138] BTRFS info (device loop0): enabling ssd optimizations [ 109.165898][ T5138] FAULT_INJECTION: forcing a failure. [ 109.165898][ T5138] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 109.169503][ T5138] CPU: 1 PID: 5138 Comm: syz.0.26 Tainted: G W 5.15.188-syzkaller #0 [ 109.172037][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.174902][ T5138] Call trace: [ 109.175788][ T5138] dump_backtrace+0x0/0x43c [ 109.177100][ T5138] show_stack+0x2c/0x3c [ 109.178190][ T5138] __dump_stack+0x30/0x40 [ 109.179371][ T5138] dump_stack_lvl+0xf8/0x160 [ 109.180666][ T5138] dump_stack+0x1c/0x5c [ 109.181789][ T5138] should_fail+0x3c0/0x51c [ 109.183019][ T5138] should_fail_alloc_page+0x74/0xa8 [ 109.184448][ T5138] prepare_alloc_pages+0x160/0x460 [ 109.185913][ T5138] __alloc_pages+0x108/0x470 [ 109.187250][ T5138] alloc_pages+0x34c/0x5c0 [ 109.188465][ T5138] new_slab+0xe0/0x55c [ 109.189564][ T5138] ___slab_alloc+0x6c0/0xda8 [ 109.190827][ T5138] __slab_alloc+0x68/0xc0 [ 109.191990][ T5138] kmem_cache_alloc+0x2ac/0x3e4 [ 109.193299][ T5138] btrfs_alloc_path+0x5c/0x68 [ 109.194584][ T5138] __btrfs_unlink_inode+0x1d8/0xb00 [ 109.196003][ T5138] btrfs_unlink+0x108/0x258 [ 109.197218][ T5138] vfs_unlink+0x2e0/0x4f4 [ 109.198372][ T5138] do_unlinkat+0x31c/0x600 [ 109.199637][ T5138] __arm64_sys_unlinkat+0xe0/0xfc [ 109.201099][ T5138] invoke_syscall+0x98/0x2b8 [ 109.202425][ T5138] el0_svc_common+0x138/0x258 [ 109.203756][ T5138] do_el0_svc+0x58/0x14c [ 109.204924][ T5138] el0_svc+0x78/0x1e0 [ 109.206003][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 109.207452][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 109.495445][ T5159] loop0: detected capacity change from 0 to 32768 [ 109.546429][ T5159] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.27 (5159) [ 109.560836][ T5159] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 109.563471][ T5159] BTRFS info (device loop0): using free space tree [ 109.565440][ T5159] BTRFS info (device loop0): has skinny extents [ 109.581155][ T5159] BTRFS info (device loop0): enabling ssd optimizations [ 109.597796][ T5159] FAULT_INJECTION: forcing a failure. [ 109.597796][ T5159] name failslab, interval 1, probability 0, space 0, times 0 [ 109.601275][ T5159] CPU: 0 PID: 5159 Comm: syz.0.27 Tainted: G W 5.15.188-syzkaller #0 [ 109.604016][ T5159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.606876][ T5159] Call trace: [ 109.607813][ T5159] dump_backtrace+0x0/0x43c [ 109.609067][ T5159] show_stack+0x2c/0x3c [ 109.610271][ T5159] __dump_stack+0x30/0x40 [ 109.611539][ T5159] dump_stack_lvl+0xf8/0x160 [ 109.612837][ T5159] dump_stack+0x1c/0x5c [ 109.614040][ T5159] should_fail+0x3c0/0x51c [ 109.615285][ T5159] __should_failslab+0xbc/0x10c [ 109.616703][ T5159] should_failslab+0x10/0x28 [ 109.618018][ T5159] slab_pre_alloc_hook+0x64/0xec [ 109.619553][ T5159] kmem_cache_alloc_trace+0x98/0x3fc [ 109.621026][ T5159] btrfs_delete_delayed_dir_index+0x220/0x550 [ 109.622720][ T5159] __btrfs_unlink_inode+0x34c/0xb00 [ 109.624187][ T5159] btrfs_unlink+0x108/0x258 [ 109.625488][ T5159] vfs_unlink+0x2e0/0x4f4 [ 109.626719][ T5159] do_unlinkat+0x31c/0x600 [ 109.628048][ T5159] __arm64_sys_unlinkat+0xe0/0xfc [ 109.629446][ T5159] invoke_syscall+0x98/0x2b8 [ 109.630716][ T5159] el0_svc_common+0x138/0x258 [ 109.632103][ T5159] do_el0_svc+0x58/0x14c [ 109.633268][ T5159] el0_svc+0x78/0x1e0 [ 109.634412][ T5159] el0t_64_sync_handler+0xcc/0xe4 [ 109.635772][ T5159] el0t_64_sync+0x1a0/0x1a4 [ 109.637729][ T5159] ------------[ cut here ]------------ [ 109.639468][ T5159] WARNING: CPU: 0 PID: 5159 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 109.642056][ T5159] Modules linked in: [ 109.643188][ T5159] CPU: 0 PID: 5159 Comm: syz.0.27 Tainted: G W 5.15.188-syzkaller #0 [ 109.645770][ T5159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 109.648580][ T5159] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 109.650783][ T5159] pc : __btrfs_unlink_inode+0x908/0xb00 [ 109.652377][ T5159] lr : __btrfs_unlink_inode+0x908/0xb00 [ 109.653893][ T5159] sp : ffff800020bc7a60 [ 109.655038][ T5159] x29: ffff800020bc7b10 x28: ffff0000d91f2000 x27: ffff0000ea161c10 [ 109.657289][ T5159] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ec3026e0 [ 109.659495][ T5159] x23: 1ffff00004178f54 x22: dfff800000000000 x21: ffff0000e27a13a0 [ 109.661852][ T5159] x20: ffff0000de724cb8 x19: 1fffe0001bce4997 x18: 0000000000000001 [ 109.664162][ T5159] x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff [ 109.666386][ T5159] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 109.668657][ T5159] x11: 0000000000000000 x10: 0000000000000000 x9 : 0fb6435eda239800 [ 109.670873][ T5159] x8 : 0fb6435eda239800 x7 : 0000000000000001 x6 : 0000000000000001 [ 109.673156][ T5159] x5 : ffff800020bc7358 x4 : ffff80001425f400 x3 : ffff8000085051a4 [ 109.675321][ T5159] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 109.677621][ T5159] Call trace: [ 109.678491][ T5159] __btrfs_unlink_inode+0x908/0xb00 [ 109.679928][ T5159] btrfs_unlink+0x108/0x258 [ 109.681257][ T5159] vfs_unlink+0x2e0/0x4f4 [ 109.682425][ T5159] do_unlinkat+0x31c/0x600 [ 109.683636][ T5159] __arm64_sys_unlinkat+0xe0/0xfc [ 109.685089][ T5159] invoke_syscall+0x98/0x2b8 [ 109.686478][ T5159] el0_svc_common+0x138/0x258 [ 109.687872][ T5159] do_el0_svc+0x58/0x14c [ 109.689044][ T5159] el0_svc+0x78/0x1e0 [ 109.690204][ T5159] el0t_64_sync_handler+0xcc/0xe4 [ 109.691664][ T5159] el0t_64_sync+0x1a0/0x1a4 [ 109.692885][ T5159] irq event stamp: 78962 [ 109.694094][ T5159] hardirqs last enabled at (78961): [] __up_console_sem+0xb4/0x100 [ 109.696705][ T5159] hardirqs last disabled at (78962): [] el1_dbg+0x24/0x80 [ 109.699096][ T5159] softirqs last enabled at (78942): [] handle_softirqs+0xa4c/0xbf0 [ 109.701761][ T5159] softirqs last disabled at (78859): [] __irq_exit_rcu+0x240/0x440 [ 109.704461][ T5159] ---[ end trace 3f261a58dfc76de3 ]--- [ 109.706539][ T5159] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 109.709285][ T5159] BTRFS info (device loop0): forced readonly [ 109.981512][ T5181] loop0: detected capacity change from 0 to 32768 [ 110.038888][ T5181] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.28 (5181) [ 110.046760][ T5181] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 110.049209][ T5181] BTRFS info (device loop0): using free space tree [ 110.051012][ T5181] BTRFS info (device loop0): has skinny extents [ 110.067447][ T5181] BTRFS info (device loop0): enabling ssd optimizations [ 110.074856][ T5181] FAULT_INJECTION: forcing a failure. [ 110.074856][ T5181] name failslab, interval 1, probability 0, space 0, times 0 [ 110.078491][ T5181] CPU: 1 PID: 5181 Comm: syz.0.28 Tainted: G W 5.15.188-syzkaller #0 [ 110.081046][ T5181] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.083895][ T5181] Call trace: [ 110.084795][ T5181] dump_backtrace+0x0/0x43c [ 110.086014][ T5181] show_stack+0x2c/0x3c [ 110.087213][ T5181] __dump_stack+0x30/0x40 [ 110.088419][ T5181] dump_stack_lvl+0xf8/0x160 [ 110.089633][ T5181] dump_stack+0x1c/0x5c [ 110.090805][ T5181] should_fail+0x3c0/0x51c [ 110.091962][ T5181] __should_failslab+0xbc/0x10c [ 110.093274][ T5181] should_failslab+0x10/0x28 [ 110.094503][ T5181] slab_pre_alloc_hook+0x64/0xec [ 110.095844][ T5181] kmem_cache_alloc_trace+0x98/0x3fc [ 110.097387][ T5181] btrfs_delete_delayed_dir_index+0x220/0x550 [ 110.099126][ T5181] __btrfs_unlink_inode+0x34c/0xb00 [ 110.100591][ T5181] btrfs_unlink+0x108/0x258 [ 110.101839][ T5181] vfs_unlink+0x2e0/0x4f4 [ 110.103043][ T5181] do_unlinkat+0x31c/0x600 [ 110.104332][ T5181] __arm64_sys_unlinkat+0xe0/0xfc [ 110.105719][ T5181] invoke_syscall+0x98/0x2b8 [ 110.107016][ T5181] el0_svc_common+0x138/0x258 [ 110.108317][ T5181] do_el0_svc+0x58/0x14c [ 110.109482][ T5181] el0_svc+0x78/0x1e0 [ 110.110573][ T5181] el0t_64_sync_handler+0xcc/0xe4 [ 110.111990][ T5181] el0t_64_sync+0x1a0/0x1a4 [ 110.114954][ T5181] ------------[ cut here ]------------ [ 110.116722][ T5181] WARNING: CPU: 1 PID: 5181 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 110.119391][ T5181] Modules linked in: [ 110.120463][ T5181] CPU: 1 PID: 5181 Comm: syz.0.28 Tainted: G W 5.15.188-syzkaller #0 [ 110.123003][ T5181] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.125884][ T5181] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 110.128093][ T5181] pc : __btrfs_unlink_inode+0x908/0xb00 [ 110.129617][ T5181] lr : __btrfs_unlink_inode+0x908/0xb00 [ 110.131341][ T5181] sp : ffff800020cc7a60 [ 110.132543][ T5181] x29: ffff800020cc7b10 x28: ffff0000c834e000 x27: ffff0000e2788010 [ 110.134797][ T5181] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c7f4da50 [ 110.137055][ T5181] x23: 1ffff00004198f54 x22: dfff800000000000 x21: ffff0000ea1a6bf0 [ 110.139302][ T5181] x20: ffff0000de7a7058 x19: 1fffe0001bcf4e0b x18: 0000000000000001 [ 110.141569][ T5181] x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff [ 110.143724][ T5181] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 110.145862][ T5181] x11: 0000000000000000 x10: 0000000000000000 x9 : a1880b047b36ad00 [ 110.148122][ T5181] x8 : a1880b047b36ad00 x7 : 0000000000000001 x6 : 0000000000000001 [ 110.150358][ T5181] x5 : ffff800020cc7358 x4 : ffff80001425f400 x3 : ffff8000085051a4 [ 110.152614][ T5181] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 110.154877][ T5181] Call trace: [ 110.155788][ T5181] __btrfs_unlink_inode+0x908/0xb00 [ 110.157261][ T5181] btrfs_unlink+0x108/0x258 [ 110.158519][ T5181] vfs_unlink+0x2e0/0x4f4 [ 110.159708][ T5181] do_unlinkat+0x31c/0x600 [ 110.160912][ T5181] __arm64_sys_unlinkat+0xe0/0xfc [ 110.162371][ T5181] invoke_syscall+0x98/0x2b8 [ 110.163645][ T5181] el0_svc_common+0x138/0x258 [ 110.164964][ T5181] do_el0_svc+0x58/0x14c [ 110.166094][ T5181] el0_svc+0x78/0x1e0 [ 110.167213][ T5181] el0t_64_sync_handler+0xcc/0xe4 [ 110.168596][ T5181] el0t_64_sync+0x1a0/0x1a4 [ 110.169883][ T5181] irq event stamp: 79456 [ 110.171087][ T5181] hardirqs last enabled at (79455): [] __up_console_sem+0xb4/0x100 [ 110.173751][ T5181] hardirqs last disabled at (79456): [] el1_dbg+0x24/0x80 [ 110.176219][ T5181] softirqs last enabled at (79436): [] handle_softirqs+0xa4c/0xbf0 [ 110.178895][ T5181] softirqs last disabled at (79375): [] __irq_exit_rcu+0x240/0x440 [ 110.181603][ T5181] ---[ end trace 3f261a58dfc76de4 ]--- [ 110.184402][ T5181] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 110.187835][ T5181] BTRFS info (device loop0): forced readonly [ 110.469300][ T5204] loop0: detected capacity change from 0 to 32768 [ 110.515362][ T5204] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.29 (5204) [ 110.527733][ T5204] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 110.530329][ T5204] BTRFS info (device loop0): using free space tree [ 110.532184][ T5204] BTRFS info (device loop0): has skinny extents [ 110.547958][ T5204] BTRFS info (device loop0): enabling ssd optimizations [ 110.555627][ T5204] FAULT_INJECTION: forcing a failure. [ 110.555627][ T5204] name failslab, interval 1, probability 0, space 0, times 0 [ 110.559190][ T5204] CPU: 0 PID: 5204 Comm: syz.0.29 Tainted: G W 5.15.188-syzkaller #0 [ 110.561790][ T5204] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.564591][ T5204] Call trace: [ 110.565547][ T5204] dump_backtrace+0x0/0x43c [ 110.566885][ T5204] show_stack+0x2c/0x3c [ 110.568065][ T5204] __dump_stack+0x30/0x40 [ 110.569295][ T5204] dump_stack_lvl+0xf8/0x160 [ 110.570583][ T5204] dump_stack+0x1c/0x5c [ 110.571766][ T5204] should_fail+0x3c0/0x51c [ 110.573022][ T5204] __should_failslab+0xbc/0x10c [ 110.574381][ T5204] should_failslab+0x10/0x28 [ 110.575654][ T5204] slab_pre_alloc_hook+0x64/0xec [ 110.576992][ T5204] kmem_cache_alloc_trace+0x98/0x3fc [ 110.578447][ T5204] btrfs_delete_delayed_dir_index+0x220/0x550 [ 110.580133][ T5204] __btrfs_unlink_inode+0x34c/0xb00 [ 110.581571][ T5204] btrfs_unlink+0x108/0x258 [ 110.582843][ T5204] vfs_unlink+0x2e0/0x4f4 [ 110.584029][ T5204] do_unlinkat+0x31c/0x600 [ 110.585240][ T5204] __arm64_sys_unlinkat+0xe0/0xfc [ 110.586651][ T5204] invoke_syscall+0x98/0x2b8 [ 110.587893][ T5204] el0_svc_common+0x138/0x258 [ 110.589231][ T5204] do_el0_svc+0x58/0x14c [ 110.590396][ T5204] el0_svc+0x78/0x1e0 [ 110.591471][ T5204] el0t_64_sync_handler+0xcc/0xe4 [ 110.592835][ T5204] el0t_64_sync+0x1a0/0x1a4 [ 110.594599][ T5204] ------------[ cut here ]------------ [ 110.596332][ T5204] WARNING: CPU: 0 PID: 5204 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 110.598984][ T5204] Modules linked in: [ 110.600128][ T5204] CPU: 0 PID: 5204 Comm: syz.0.29 Tainted: G W 5.15.188-syzkaller #0 [ 110.602722][ T5204] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.605531][ T5204] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 110.607794][ T5204] pc : __btrfs_unlink_inode+0x908/0xb00 [ 110.609337][ T5204] lr : __btrfs_unlink_inode+0x908/0xb00 [ 110.610922][ T5204] sp : ffff800020de7a60 [ 110.612124][ T5204] x29: ffff800020de7b10 x28: ffff0000cfa78000 x27: ffff0000ea162010 [ 110.614346][ T5204] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000e9509bb0 [ 110.616602][ T5204] x23: 1ffff000041bcf54 x22: dfff800000000000 x21: ffff0000e27a3ae0 [ 110.618835][ T5204] x20: ffff0000de724d68 x19: 1fffe0001bce49ad x18: 0000000000000001 [ 110.621117][ T5204] x17: 0000000000000000 x16: ffff8000083020fc x15: 00000000ffffffff [ 110.623428][ T5204] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 110.625651][ T5204] x11: 0000000000000000 x10: 0000000000000000 x9 : 0bc3fbf16fe2f200 [ 110.627952][ T5204] x8 : 0bc3fbf16fe2f200 x7 : 0000000000000001 x6 : 0000000000000001 [ 110.630234][ T5204] x5 : ffff800020de7358 x4 : ffff80001425f400 x3 : ffff80000830220c [ 110.632509][ T5204] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 110.634727][ T5204] Call trace: [ 110.635634][ T5204] __btrfs_unlink_inode+0x908/0xb00 [ 110.637097][ T5204] btrfs_unlink+0x108/0x258 [ 110.638404][ T5204] vfs_unlink+0x2e0/0x4f4 [ 110.639657][ T5204] do_unlinkat+0x31c/0x600 [ 110.640930][ T5204] __arm64_sys_unlinkat+0xe0/0xfc [ 110.642350][ T5204] invoke_syscall+0x98/0x2b8 [ 110.643704][ T5204] el0_svc_common+0x138/0x258 [ 110.645046][ T5204] do_el0_svc+0x58/0x14c [ 110.646259][ T5204] el0_svc+0x78/0x1e0 [ 110.647330][ T5204] el0t_64_sync_handler+0xcc/0xe4 [ 110.648773][ T5204] el0t_64_sync+0x1a0/0x1a4 [ 110.650058][ T5204] irq event stamp: 79114 [ 110.651263][ T5204] hardirqs last enabled at (79113): [] __up_console_sem+0xb4/0x100 [ 110.654061][ T5204] hardirqs last disabled at (79114): [] el1_dbg+0x24/0x80 [ 110.656472][ T5204] softirqs last enabled at (79094): [] handle_softirqs+0xa4c/0xbf0 [ 110.659273][ T5204] softirqs last disabled at (79051): [] __irq_exit_rcu+0x240/0x440 [ 110.662001][ T5204] ---[ end trace 3f261a58dfc76de5 ]--- [ 110.664183][ T5204] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 110.666890][ T5204] BTRFS info (device loop0): forced readonly [ 110.950297][ T5226] loop0: detected capacity change from 0 to 32768 [ 110.955031][ T5226] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.30 (5226) [ 110.959997][ T5226] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 110.962534][ T5226] BTRFS info (device loop0): using free space tree [ 110.965917][ T5226] BTRFS info (device loop0): has skinny extents [ 110.979927][ T5226] BTRFS info (device loop0): enabling ssd optimizations [ 110.987474][ T5226] FAULT_INJECTION: forcing a failure. [ 110.987474][ T5226] name failslab, interval 1, probability 0, space 0, times 0 [ 110.991036][ T5226] CPU: 1 PID: 5226 Comm: syz.0.30 Tainted: G W 5.15.188-syzkaller #0 [ 110.993658][ T5226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 110.996425][ T5226] Call trace: [ 110.997328][ T5226] dump_backtrace+0x0/0x43c [ 110.998611][ T5226] show_stack+0x2c/0x3c [ 110.999830][ T5226] __dump_stack+0x30/0x40 [ 111.001093][ T5226] dump_stack_lvl+0xf8/0x160 [ 111.002410][ T5226] dump_stack+0x1c/0x5c [ 111.003596][ T5226] should_fail+0x3c0/0x51c [ 111.004860][ T5226] __should_failslab+0xbc/0x10c [ 111.006266][ T5226] should_failslab+0x10/0x28 [ 111.007474][ T5226] slab_pre_alloc_hook+0x64/0xec [ 111.008942][ T5226] kmem_cache_alloc_trace+0x98/0x3fc [ 111.010428][ T5226] btrfs_delete_delayed_dir_index+0x220/0x550 [ 111.012182][ T5226] __btrfs_unlink_inode+0x34c/0xb00 [ 111.013571][ T5226] btrfs_unlink+0x108/0x258 [ 111.014832][ T5226] vfs_unlink+0x2e0/0x4f4 [ 111.016039][ T5226] do_unlinkat+0x31c/0x600 [ 111.017300][ T5226] __arm64_sys_unlinkat+0xe0/0xfc [ 111.018710][ T5226] invoke_syscall+0x98/0x2b8 [ 111.019967][ T5226] el0_svc_common+0x138/0x258 [ 111.021364][ T5226] do_el0_svc+0x58/0x14c [ 111.022570][ T5226] el0_svc+0x78/0x1e0 [ 111.023687][ T5226] el0t_64_sync_handler+0xcc/0xe4 [ 111.025103][ T5226] el0t_64_sync+0x1a0/0x1a4 [ 111.028356][ T5226] ------------[ cut here ]------------ [ 111.030107][ T5226] WARNING: CPU: 1 PID: 5226 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 111.032749][ T5226] Modules linked in: [ 111.033858][ T5226] CPU: 1 PID: 5226 Comm: syz.0.30 Tainted: G W 5.15.188-syzkaller #0 [ 111.036420][ T5226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.039166][ T5226] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 111.041335][ T5226] pc : __btrfs_unlink_inode+0x908/0xb00 [ 111.042888][ T5226] lr : __btrfs_unlink_inode+0x908/0xb00 [ 111.044396][ T5226] sp : ffff800020f17a60 [ 111.045589][ T5226] x29: ffff800020f17b10 x28: ffff0000c1936000 x27: ffff0000e2789410 [ 111.047893][ T5226] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cdbd6840 [ 111.050187][ T5226] x23: 1ffff000041e2f54 x22: dfff800000000000 x21: ffff0000ea171d70 [ 111.052483][ T5226] x20: ffff0000de7a7e18 x19: 1fffe0001bcf4fc3 x18: 0000000000000001 [ 111.054844][ T5226] x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff [ 111.057146][ T5226] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 111.059329][ T5226] x11: 0000000000000000 x10: 0000000000000000 x9 : 80db624469abe600 [ 111.061649][ T5226] x8 : 80db624469abe600 x7 : 0000000000000001 x6 : 0000000000000001 [ 111.063897][ T5226] x5 : ffff800020f17358 x4 : ffff80001425f400 x3 : ffff8000085051a4 [ 111.066127][ T5226] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 111.068325][ T5226] Call trace: [ 111.069208][ T5226] __btrfs_unlink_inode+0x908/0xb00 [ 111.070659][ T5226] btrfs_unlink+0x108/0x258 [ 111.071922][ T5226] vfs_unlink+0x2e0/0x4f4 [ 111.073108][ T5226] do_unlinkat+0x31c/0x600 [ 111.074293][ T5226] __arm64_sys_unlinkat+0xe0/0xfc [ 111.075685][ T5226] invoke_syscall+0x98/0x2b8 [ 111.076968][ T5226] el0_svc_common+0x138/0x258 [ 111.078276][ T5226] do_el0_svc+0x58/0x14c [ 111.079426][ T5226] el0_svc+0x78/0x1e0 [ 111.080520][ T5226] el0t_64_sync_handler+0xcc/0xe4 [ 111.081849][ T5226] el0t_64_sync+0x1a0/0x1a4 [ 111.083106][ T5226] irq event stamp: 79080 [ 111.084226][ T5226] hardirqs last enabled at (79079): [] __up_console_sem+0xb4/0x100 [ 111.086896][ T5226] hardirqs last disabled at (79080): [] el1_dbg+0x24/0x80 [ 111.089312][ T5226] softirqs last enabled at (79060): [] handle_softirqs+0xa4c/0xbf0 [ 111.092025][ T5226] softirqs last disabled at (79041): [] __irq_exit_rcu+0x240/0x440 [ 111.094653][ T5226] ---[ end trace 3f261a58dfc76de6 ]--- [ 111.099861][ T5226] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 111.102586][ T5226] BTRFS info (device loop0): forced readonly [ 111.373096][ T5250] loop0: detected capacity change from 0 to 32768 [ 111.461805][ T5250] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.31 (5250) [ 111.468551][ T5250] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 111.471099][ T5250] BTRFS info (device loop0): using free space tree [ 111.472988][ T5250] BTRFS info (device loop0): has skinny extents [ 111.494639][ T5250] BTRFS info (device loop0): enabling ssd optimizations [ 111.501577][ T5250] FAULT_INJECTION: forcing a failure. [ 111.501577][ T5250] name failslab, interval 1, probability 0, space 0, times 0 [ 111.505659][ T5250] CPU: 0 PID: 5250 Comm: syz.0.31 Tainted: G W 5.15.188-syzkaller #0 [ 111.508231][ T5250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.511023][ T5250] Call trace: [ 111.511951][ T5250] dump_backtrace+0x0/0x43c [ 111.513175][ T5250] show_stack+0x2c/0x3c [ 111.514424][ T5250] __dump_stack+0x30/0x40 [ 111.515705][ T5250] dump_stack_lvl+0xf8/0x160 [ 111.516927][ T5250] dump_stack+0x1c/0x5c [ 111.518122][ T5250] should_fail+0x3c0/0x51c [ 111.519359][ T5250] __should_failslab+0xbc/0x10c [ 111.520716][ T5250] should_failslab+0x10/0x28 [ 111.521977][ T5250] slab_pre_alloc_hook+0x64/0xec [ 111.523389][ T5250] kmem_cache_alloc_trace+0x98/0x3fc [ 111.524839][ T5250] btrfs_delete_delayed_dir_index+0x220/0x550 [ 111.526581][ T5250] __btrfs_unlink_inode+0x34c/0xb00 [ 111.528024][ T5250] btrfs_unlink+0x108/0x258 [ 111.529335][ T5250] vfs_unlink+0x2e0/0x4f4 [ 111.530527][ T5250] do_unlinkat+0x31c/0x600 [ 111.531753][ T5250] __arm64_sys_unlinkat+0xe0/0xfc [ 111.533189][ T5250] invoke_syscall+0x98/0x2b8 [ 111.534515][ T5250] el0_svc_common+0x138/0x258 [ 111.535803][ T5250] do_el0_svc+0x58/0x14c [ 111.537043][ T5250] el0_svc+0x78/0x1e0 [ 111.538102][ T5250] el0t_64_sync_handler+0xcc/0xe4 [ 111.539504][ T5250] el0t_64_sync+0x1a0/0x1a4 [ 111.544129][ T5250] ------------[ cut here ]------------ [ 111.545854][ T5250] WARNING: CPU: 0 PID: 5250 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 111.548542][ T5250] Modules linked in: [ 111.549640][ T5250] CPU: 0 PID: 5250 Comm: syz.0.31 Tainted: G W 5.15.188-syzkaller #0 [ 111.552319][ T5250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.555106][ T5250] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 111.557331][ T5250] pc : __btrfs_unlink_inode+0x908/0xb00 [ 111.558923][ T5250] lr : __btrfs_unlink_inode+0x908/0xb00 [ 111.560488][ T5250] sp : ffff800020ee7a60 [ 111.561662][ T5250] x29: ffff800020ee7b10 x28: ffff0000c13c4000 x27: ffff0000ea160010 [ 111.563897][ T5250] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ecda9420 [ 111.566117][ T5250] x23: 1ffff000041dcf54 x22: dfff800000000000 x21: ffff0000e27a5850 [ 111.568343][ T5250] x20: ffff0000de7241b8 x19: 1fffe0001bce4837 x18: 0000000000000001 [ 111.570593][ T5250] x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff [ 111.572813][ T5250] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 111.575012][ T5250] x11: 0000000000000000 x10: 0000000000000000 x9 : c659d1343b1a5200 [ 111.577222][ T5250] x8 : c659d1343b1a5200 x7 : 0000000000000001 x6 : 0000000000000001 [ 111.579397][ T5250] x5 : ffff800020ee7358 x4 : ffff80001425f400 x3 : ffff8000085051a4 [ 111.581635][ T5250] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 111.583978][ T5250] Call trace: [ 111.584895][ T5250] __btrfs_unlink_inode+0x908/0xb00 [ 111.586410][ T5250] btrfs_unlink+0x108/0x258 [ 111.587698][ T5250] vfs_unlink+0x2e0/0x4f4 [ 111.588876][ T5250] do_unlinkat+0x31c/0x600 [ 111.590092][ T5250] __arm64_sys_unlinkat+0xe0/0xfc [ 111.591489][ T5250] invoke_syscall+0x98/0x2b8 [ 111.592767][ T5250] el0_svc_common+0x138/0x258 [ 111.594108][ T5250] do_el0_svc+0x58/0x14c [ 111.595310][ T5250] el0_svc+0x78/0x1e0 [ 111.596474][ T5250] el0t_64_sync_handler+0xcc/0xe4 [ 111.597964][ T5250] el0t_64_sync+0x1a0/0x1a4 [ 111.599207][ T5250] irq event stamp: 79228 [ 111.600402][ T5250] hardirqs last enabled at (79227): [] __up_console_sem+0xb4/0x100 [ 111.603056][ T5250] hardirqs last disabled at (79228): [] el1_dbg+0x24/0x80 [ 111.605423][ T5250] softirqs last enabled at (79208): [] handle_softirqs+0xa4c/0xbf0 [ 111.608181][ T5250] softirqs last disabled at (79185): [] __irq_exit_rcu+0x240/0x440 [ 111.610763][ T5250] ---[ end trace 3f261a58dfc76de7 ]--- [ 111.615571][ T5250] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 111.618258][ T5250] BTRFS info (device loop0): forced readonly [ 111.908214][ T5272] loop0: detected capacity change from 0 to 32768 [ 111.947391][ T5272] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.32 (5272) [ 111.957605][ T5272] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 111.960310][ T5272] BTRFS info (device loop0): using free space tree [ 111.962027][ T5272] BTRFS info (device loop0): has skinny extents [ 111.976836][ T5272] BTRFS info (device loop0): enabling ssd optimizations [ 111.984118][ T5272] FAULT_INJECTION: forcing a failure. [ 111.984118][ T5272] name failslab, interval 1, probability 0, space 0, times 0 [ 111.987758][ T5272] CPU: 0 PID: 5272 Comm: syz.0.32 Tainted: G W 5.15.188-syzkaller #0 [ 111.990354][ T5272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 111.993486][ T5272] Call trace: [ 111.994406][ T5272] dump_backtrace+0x0/0x43c [ 111.995684][ T5272] show_stack+0x2c/0x3c [ 111.996856][ T5272] __dump_stack+0x30/0x40 [ 111.998062][ T5272] dump_stack_lvl+0xf8/0x160 [ 111.999884][ T5272] dump_stack+0x1c/0x5c [ 112.001000][ T5272] should_fail+0x3c0/0x51c [ 112.002231][ T5272] __should_failslab+0xbc/0x10c [ 112.003597][ T5272] should_failslab+0x10/0x28 [ 112.004904][ T5272] slab_pre_alloc_hook+0x64/0xec [ 112.006241][ T5272] kmem_cache_alloc_trace+0x98/0x3fc [ 112.007789][ T5272] btrfs_delete_delayed_dir_index+0x220/0x550 [ 112.009526][ T5272] __btrfs_unlink_inode+0x34c/0xb00 [ 112.010973][ T5272] btrfs_unlink+0x108/0x258 [ 112.012246][ T5272] vfs_unlink+0x2e0/0x4f4 [ 112.013495][ T5272] do_unlinkat+0x31c/0x600 [ 112.014722][ T5272] __arm64_sys_unlinkat+0xe0/0xfc [ 112.016120][ T5272] invoke_syscall+0x98/0x2b8 [ 112.017369][ T5272] el0_svc_common+0x138/0x258 [ 112.018704][ T5272] do_el0_svc+0x58/0x14c [ 112.019848][ T5272] el0_svc+0x78/0x1e0 [ 112.020972][ T5272] el0t_64_sync_handler+0xcc/0xe4 [ 112.022364][ T5272] el0t_64_sync+0x1a0/0x1a4 [ 112.023862][ T5272] ------------[ cut here ]------------ [ 112.025515][ T5272] WARNING: CPU: 0 PID: 5272 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 112.028065][ T5272] Modules linked in: [ 112.029167][ T5272] CPU: 0 PID: 5272 Comm: syz.0.32 Tainted: G W 5.15.188-syzkaller #0 [ 112.031654][ T5272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.034472][ T5272] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 112.036615][ T5272] pc : __btrfs_unlink_inode+0x908/0xb00 [ 112.038103][ T5272] lr : __btrfs_unlink_inode+0x908/0xb00 [ 112.039619][ T5272] sp : ffff800021097a60 [ 112.040768][ T5272] x29: ffff800021097b10 x28: ffff0000dbb6a000 x27: ffff0000ea162410 [ 112.042977][ T5272] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cf2f3370 [ 112.045249][ T5272] x23: 1ffff00004212f54 x22: dfff800000000000 x21: ffff0000e27a75c0 [ 112.047448][ T5272] x20: ffff0000de724e18 x19: 1fffe0001bce49c3 x18: 0000000000000001 [ 112.049662][ T5272] x17: 0000000000000000 x16: ffff8000083020fc x15: 00000000ffffffff [ 112.051854][ T5272] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 112.054070][ T5272] x11: 0000000000000000 x10: 0000000000000000 x9 : a9cc45e002989f00 [ 112.056336][ T5272] x8 : a9cc45e002989f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 112.058578][ T5272] x5 : ffff800021097358 x4 : ffff80001425f400 x3 : ffff80000830220c [ 112.060852][ T5272] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 112.063194][ T5272] Call trace: [ 112.064118][ T5272] __btrfs_unlink_inode+0x908/0xb00 [ 112.065540][ T5272] btrfs_unlink+0x108/0x258 [ 112.066814][ T5272] vfs_unlink+0x2e0/0x4f4 [ 112.068002][ T5272] do_unlinkat+0x31c/0x600 [ 112.069257][ T5272] __arm64_sys_unlinkat+0xe0/0xfc [ 112.070649][ T5272] invoke_syscall+0x98/0x2b8 [ 112.071984][ T5272] el0_svc_common+0x138/0x258 [ 112.073294][ T5272] do_el0_svc+0x58/0x14c [ 112.074415][ T5272] el0_svc+0x78/0x1e0 [ 112.075507][ T5272] el0t_64_sync_handler+0xcc/0xe4 [ 112.076919][ T5272] el0t_64_sync+0x1a0/0x1a4 [ 112.078118][ T5272] irq event stamp: 79260 [ 112.079203][ T5272] hardirqs last enabled at (79259): [] __up_console_sem+0xb4/0x100 [ 112.081910][ T5272] hardirqs last disabled at (79260): [] el1_dbg+0x24/0x80 [ 112.084315][ T5272] softirqs last enabled at (79240): [] handle_softirqs+0xa4c/0xbf0 [ 112.086916][ T5272] softirqs last disabled at (79211): [] __irq_exit_rcu+0x240/0x440 [ 112.089713][ T5272] ---[ end trace 3f261a58dfc76de8 ]--- [ 112.091531][ T5272] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 112.094246][ T5272] BTRFS info (device loop0): forced readonly [ 112.366899][ T5294] loop0: detected capacity change from 0 to 32768 [ 112.405552][ T5294] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.33 (5294) [ 112.416687][ T5294] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 112.419302][ T5294] BTRFS info (device loop0): using free space tree [ 112.421053][ T5294] BTRFS info (device loop0): has skinny extents [ 112.437662][ T5294] BTRFS info (device loop0): enabling ssd optimizations [ 112.445458][ T5294] FAULT_INJECTION: forcing a failure. [ 112.445458][ T5294] name failslab, interval 1, probability 0, space 0, times 0 [ 112.448909][ T5294] CPU: 0 PID: 5294 Comm: syz.0.33 Tainted: G W 5.15.188-syzkaller #0 [ 112.451556][ T5294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.454353][ T5294] Call trace: [ 112.455252][ T5294] dump_backtrace+0x0/0x43c [ 112.456466][ T5294] show_stack+0x2c/0x3c [ 112.457657][ T5294] __dump_stack+0x30/0x40 [ 112.458807][ T5294] dump_stack_lvl+0xf8/0x160 [ 112.460085][ T5294] dump_stack+0x1c/0x5c [ 112.461221][ T5294] should_fail+0x3c0/0x51c [ 112.462468][ T5294] __should_failslab+0xbc/0x10c [ 112.463770][ T5294] should_failslab+0x10/0x28 [ 112.465010][ T5294] slab_pre_alloc_hook+0x64/0xec [ 112.466336][ T5294] kmem_cache_alloc_trace+0x98/0x3fc [ 112.467702][ T5294] btrfs_delete_delayed_dir_index+0x220/0x550 [ 112.469372][ T5294] __btrfs_unlink_inode+0x34c/0xb00 [ 112.470778][ T5294] btrfs_unlink+0x108/0x258 [ 112.472054][ T5294] vfs_unlink+0x2e0/0x4f4 [ 112.473289][ T5294] do_unlinkat+0x31c/0x600 [ 112.474513][ T5294] __arm64_sys_unlinkat+0xe0/0xfc [ 112.475889][ T5294] invoke_syscall+0x98/0x2b8 [ 112.477164][ T5294] el0_svc_common+0x138/0x258 [ 112.478471][ T5294] do_el0_svc+0x58/0x14c [ 112.479662][ T5294] el0_svc+0x78/0x1e0 [ 112.480802][ T5294] el0t_64_sync_handler+0xcc/0xe4 [ 112.482257][ T5294] el0t_64_sync+0x1a0/0x1a4 [ 112.486722][ T5294] ------------[ cut here ]------------ [ 112.488454][ T5294] WARNING: CPU: 0 PID: 5294 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 112.491071][ T5294] Modules linked in: [ 112.492150][ T5294] CPU: 0 PID: 5294 Comm: syz.0.33 Tainted: G W 5.15.188-syzkaller #0 [ 112.494690][ T5294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.497488][ T5294] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 112.499692][ T5294] pc : __btrfs_unlink_inode+0x908/0xb00 [ 112.501239][ T5294] lr : __btrfs_unlink_inode+0x908/0xb00 [ 112.502808][ T5294] sp : ffff800020f17a60 [ 112.503939][ T5294] x29: ffff800020f17b10 x28: ffff0000d685e000 x27: ffff0000ea162810 [ 112.506139][ T5294] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d9b09dc0 [ 112.508386][ T5294] x23: 1ffff000041e2f54 x22: dfff800000000000 x21: ffff0000ea0513a0 [ 112.510552][ T5294] x20: ffff0000de7243c8 x19: 1fffe0001bce4879 x18: 0000000000000001 [ 112.512780][ T5294] x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff [ 112.514996][ T5294] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 112.517214][ T5294] x11: 0000000000000000 x10: 0000000000000000 x9 : 68ad6d0dadbbec00 [ 112.519490][ T5294] x8 : 68ad6d0dadbbec00 x7 : 0000000000000001 x6 : 0000000000000001 [ 112.521682][ T5294] x5 : ffff800020f17358 x4 : ffff80001425f400 x3 : ffff8000085051a4 [ 112.523948][ T5294] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 112.526109][ T5294] Call trace: [ 112.527021][ T5294] __btrfs_unlink_inode+0x908/0xb00 [ 112.528503][ T5294] btrfs_unlink+0x108/0x258 [ 112.529780][ T5294] vfs_unlink+0x2e0/0x4f4 [ 112.531011][ T5294] do_unlinkat+0x31c/0x600 [ 112.532254][ T5294] __arm64_sys_unlinkat+0xe0/0xfc [ 112.533605][ T5294] invoke_syscall+0x98/0x2b8 [ 112.534844][ T5294] el0_svc_common+0x138/0x258 [ 112.536102][ T5294] do_el0_svc+0x58/0x14c [ 112.537243][ T5294] el0_svc+0x78/0x1e0 [ 112.538349][ T5294] el0t_64_sync_handler+0xcc/0xe4 [ 112.539740][ T5294] el0t_64_sync+0x1a0/0x1a4 [ 112.540992][ T5294] irq event stamp: 79030 [ 112.542246][ T5294] hardirqs last enabled at (79029): [] __up_console_sem+0xb4/0x100 [ 112.544967][ T5294] hardirqs last disabled at (79030): [] el1_dbg+0x24/0x80 [ 112.547344][ T5294] softirqs last enabled at (79010): [] handle_softirqs+0xa4c/0xbf0 [ 112.550067][ T5294] softirqs last disabled at (78947): [] __irq_exit_rcu+0x240/0x440 [ 112.552766][ T5294] ---[ end trace 3f261a58dfc76de9 ]--- [ 112.557646][ T5294] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 112.560355][ T5294] BTRFS info (device loop0): forced readonly [ 112.833785][ T5316] loop0: detected capacity change from 0 to 32768 [ 112.846084][ T5316] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.34 (5316) [ 112.853896][ T5316] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 112.856643][ T5316] BTRFS info (device loop0): using free space tree [ 112.858619][ T5316] BTRFS info (device loop0): has skinny extents [ 112.878446][ T5316] BTRFS info (device loop0): enabling ssd optimizations [ 112.885466][ T5316] FAULT_INJECTION: forcing a failure. [ 112.885466][ T5316] name failslab, interval 1, probability 0, space 0, times 0 [ 112.888978][ T5316] CPU: 0 PID: 5316 Comm: syz.0.34 Tainted: G W 5.15.188-syzkaller #0 [ 112.891586][ T5316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.894523][ T5316] Call trace: [ 112.895441][ T5316] dump_backtrace+0x0/0x43c [ 112.896678][ T5316] show_stack+0x2c/0x3c [ 112.897828][ T5316] __dump_stack+0x30/0x40 [ 112.899112][ T5316] dump_stack_lvl+0xf8/0x160 [ 112.900358][ T5316] dump_stack+0x1c/0x5c [ 112.901586][ T5316] should_fail+0x3c0/0x51c [ 112.902892][ T5316] __should_failslab+0xbc/0x10c [ 112.904288][ T5316] should_failslab+0x10/0x28 [ 112.905564][ T5316] slab_pre_alloc_hook+0x64/0xec [ 112.907118][ T5316] kmem_cache_alloc_trace+0x98/0x3fc [ 112.908666][ T5316] btrfs_delete_delayed_dir_index+0x220/0x550 [ 112.910328][ T5316] __btrfs_unlink_inode+0x34c/0xb00 [ 112.911733][ T5316] btrfs_unlink+0x108/0x258 [ 112.913023][ T5316] vfs_unlink+0x2e0/0x4f4 [ 112.914258][ T5316] do_unlinkat+0x31c/0x600 [ 112.915441][ T5316] __arm64_sys_unlinkat+0xe0/0xfc [ 112.916899][ T5316] invoke_syscall+0x98/0x2b8 [ 112.918179][ T5316] el0_svc_common+0x138/0x258 [ 112.919454][ T5316] do_el0_svc+0x58/0x14c [ 112.920624][ T5316] el0_svc+0x78/0x1e0 [ 112.921686][ T5316] el0t_64_sync_handler+0xcc/0xe4 [ 112.923076][ T5316] el0t_64_sync+0x1a0/0x1a4 [ 112.926514][ T5316] ------------[ cut here ]------------ [ 112.928194][ T5316] WARNING: CPU: 0 PID: 5316 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x908/0xb00 [ 112.930787][ T5316] Modules linked in: [ 112.931859][ T5316] CPU: 0 PID: 5316 Comm: syz.0.34 Tainted: G W 5.15.188-syzkaller #0 [ 112.934388][ T5316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 112.937182][ T5316] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 112.939315][ T5316] pc : __btrfs_unlink_inode+0x908/0xb00 [ 112.940855][ T5316] lr : __btrfs_unlink_inode+0x908/0xb00 [ 112.942450][ T5316] sp : ffff8000213c7a60 [ 112.943634][ T5316] x29: ffff8000213c7b10 x28: ffff0000cffc4000 x27: ffff0000ea162c10 [ 112.945861][ T5316] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000e94f60b0 [ 112.948092][ T5316] x23: 1ffff00004278f54 x22: dfff800000000000 x21: ffff0000ea053ae0 [ 112.950276][ T5316] x20: ffff0000de724f78 x19: 1fffe0001bce49ef x18: 0000000000000001 [ 112.952538][ T5316] x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff [ 112.954713][ T5316] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 112.956995][ T5316] x11: 0000000000000000 x10: 0000000000000000 x9 : 24e6c6cbac70cd00 [ 112.959219][ T5316] x8 : 24e6c6cbac70cd00 x7 : 0000000000000001 x6 : 0000000000000001 [ 112.961528][ T5316] x5 : ffff8000213c7358 x4 : ffff80001425f400 x3 : ffff8000085051a4 [ 112.963743][ T5316] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 112.965920][ T5316] Call trace: [ 112.966795][ T5316] __btrfs_unlink_inode+0x908/0xb00 [ 112.968251][ T5316] btrfs_unlink+0x108/0x258 [ 112.969467][ T5316] vfs_unlink+0x2e0/0x4f4 [ 112.970666][ T5316] do_unlinkat+0x31c/0x600 [ 112.971897][ T5316] __arm64_sys_unlinkat+0xe0/0xfc [ 112.973329][ T5316] invoke_syscall+0x98/0x2b8 [ 112.974651][ T5316] el0_svc_common+0x138/0x258 [ 112.975918][ T5316] do_el0_svc+0x58/0x14c [ 112.977050][ T5316] el0_svc+0x78/0x1e0 [ 112.978154][ T5316] el0t_64_sync_handler+0xcc/0xe4 [ 112.979572][ T5316] el0t_64_sync+0x1a0/0x1a4 [ 112.980831][ T5316] irq event stamp: 79546 [ 112.981970][ T5316] hardirqs last enabled at (79545): [] __up_console_sem+0xb4/0x100 [ 112.984664][ T5316] hardirqs last disabled at (79546): [] el1_dbg+0x24/0x80 [ 112.987197][ T5316] softirqs last enabled at (79526): [] handle_softirqs+0xa4c/0xbf0 [ 112.989908][ T5316] softirqs last disabled at (79487): [] __irq_exit_rcu+0x240/0x440 [ 112.992694][ T5316] ---[ end trace 3f261a58dfc76dea ]--- [ 112.997222][ T5316] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 112.999947][ T5316] BTRFS info (device loop0): forced readonly