Warning: Permanently added '10.128.1.157' (ED25519) to the list of known hosts. 1970/01/01 00:01:03 ignoring optional flag "type"="gce" 1970/01/01 00:01:04 parsed 1 programs [ 65.520970][ T4554] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 67.006468][ T4675] chnl_net:caif_netlink_parms(): no params data found [ 67.026459][ T4675] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.028622][ T4675] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.030647][ T4675] device bridge_slave_0 entered promiscuous mode [ 67.034340][ T4675] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.035467][ T4675] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.037017][ T4675] device bridge_slave_1 entered promiscuous mode [ 67.045901][ T4675] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.048533][ T4675] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.057781][ T4675] team0: Port device team_slave_0 added [ 67.059548][ T4675] team0: Port device team_slave_1 added [ 67.066566][ T4675] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.068147][ T4675] 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. [ 67.072333][ T4675] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.074781][ T4675] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.075796][ T4675] 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. [ 67.080177][ T4675] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.148689][ T4675] device hsr_slave_0 entered promiscuous mode [ 67.187754][ T4675] device hsr_slave_1 entered promiscuous mode [ 67.901494][ T4675] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.948888][ T4675] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.968710][ T4675] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.030867][ T4675] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.165768][ T4675] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.170502][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.172027][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.175767][ T4675] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.181903][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.183472][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.184984][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.186130][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.190089][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.193994][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.195570][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.197021][ T1654] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.198149][ T1654] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.202062][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.205083][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.208173][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.210298][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.215282][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.216878][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.220566][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.226235][ T4675] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 68.229261][ T4675] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.231670][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.233220][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.234773][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.236611][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.245512][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.305973][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.307241][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.312229][ T4675] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.320050][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.321700][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.330145][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.331855][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.333677][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.335033][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.336987][ T4675] device veth0_vlan entered promiscuous mode [ 68.342436][ T4675] device veth1_vlan entered promiscuous mode [ 68.357593][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.359219][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.360674][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 68.362208][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.366584][ T4675] device veth0_macvtap entered promiscuous mode [ 68.378569][ T4675] device veth1_macvtap entered promiscuous mode [ 68.384262][ T4675] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.385511][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.387262][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 68.389436][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.391935][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.395996][ T4675] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.400062][ T4675] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.401323][ T4675] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.402648][ T4675] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.403966][ T4675] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.405990][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.407606][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.774446][ T1654] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.775718][ T1654] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.782351][ T801] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.785309][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 68.792333][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.793605][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.794947][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 69.599449][ T1969] cfg80211: failed to load regulatory.db [ 69.601377][ T2064] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.602349][ T2064] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.460747][ T801] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.981001][ T801] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.043206][ T801] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:14 executed programs: 0 [ 74.314824][ T5067] chnl_net:caif_netlink_parms(): no params data found [ 74.342318][ T5067] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.343506][ T5067] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.345056][ T5067] device bridge_slave_0 entered promiscuous mode [ 74.347453][ T5067] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.348897][ T5067] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.350593][ T5067] device bridge_slave_1 entered promiscuous mode [ 74.359986][ T5067] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.362764][ T5067] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.384734][ T5067] team0: Port device team_slave_0 added [ 74.386945][ T5067] team0: Port device team_slave_1 added [ 74.395813][ T5067] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.396915][ T5067] 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. [ 74.401775][ T5067] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.404081][ T5067] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.405072][ T5067] 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. [ 74.409692][ T5067] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.469096][ T5067] device hsr_slave_0 entered promiscuous mode [ 74.498062][ T5067] device hsr_slave_1 entered promiscuous mode [ 74.537983][ T5067] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 74.539300][ T5067] Cannot create hsr debugfs directory [ 74.985401][ T5067] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.025320][ T5067] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.059352][ T5067] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.088992][ T5067] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.136469][ T5067] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.137727][ T5067] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.138949][ T5067] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.140395][ T5067] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.165017][ T5067] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.171580][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.173565][ T1654] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.175142][ T1654] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.177053][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 75.185461][ T5067] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.196702][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.200012][ T1654] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.201131][ T1654] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.204827][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.206250][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.207244][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.217425][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.220534][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.224371][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.230091][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.233650][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.237493][ T5067] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.286747][ T5067] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.295911][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.297206][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.307207][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 75.309308][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.320976][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 75.322472][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.323973][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.325395][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.328728][ T5067] device veth0_vlan entered promiscuous mode [ 75.332921][ T5067] device veth1_vlan entered promiscuous mode [ 75.344168][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.345620][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.347071][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 75.351863][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.355090][ T5067] device veth0_macvtap entered promiscuous mode [ 75.363531][ T5067] device veth1_macvtap entered promiscuous mode [ 75.370535][ T5067] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 75.372186][ T5067] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 75.374678][ T5067] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.375857][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.377477][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 75.379991][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.381598][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.385053][ T5067] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 75.386680][ T5067] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 75.389595][ T5067] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.390879][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.392376][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.395572][ T5067] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.396921][ T5067] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.398881][ T5067] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.400280][ T5067] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.446423][ T1654] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.447758][ T1654] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.449120][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.461390][ T1654] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.462744][ T1654] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.464000][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.581153][ T5197] loop0: detected capacity change from 0 to 32768 [ 75.647848][ T5197] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.15 (5197) [ 75.653764][ T5197] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.655151][ T5197] BTRFS info (device loop0): using free space tree [ 75.656122][ T5197] BTRFS info (device loop0): has skinny extents [ 75.671942][ T801] device hsr_slave_0 left promiscuous mode [ 75.673567][ T5197] BTRFS info (device loop0): enabling ssd optimizations [ 75.684848][ T5197] FAULT_INJECTION: forcing a failure. [ 75.684848][ T5197] name failslab, interval 1, probability 0, space 0, times 1 [ 75.687166][ T5197] CPU: 0 PID: 5197 Comm: syz.0.15 Not tainted syzkaller #0 [ 75.688258][ T5197] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.689902][ T5197] Call trace: [ 75.690367][ T5197] dump_backtrace+0x0/0x458 [ 75.691099][ T5197] show_stack+0x2c/0x3c [ 75.691710][ T5197] __dump_stack+0x30/0x40 [ 75.692356][ T5197] dump_stack_lvl+0xf4/0x15c [ 75.693076][ T5197] dump_stack+0x1c/0x5c [ 75.693702][ T5197] should_fail+0x3bc/0x514 [ 75.694382][ T5197] __should_failslab+0xbc/0x10c [ 75.695164][ T5197] should_failslab+0x10/0x28 [ 75.695902][ T5197] slab_pre_alloc_hook+0x64/0xe8 [ 75.696664][ T5197] kmem_cache_alloc_trace+0x98/0x3ec [ 75.697445][ T5197] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 75.698390][ T5197] __btrfs_unlink_inode+0x350/0xaec [ 75.699212][ T5197] btrfs_unlink+0x108/0x258 [ 75.699934][ T5197] vfs_unlink+0x2e0/0x4f4 [ 75.700581][ T5197] do_unlinkat+0x328/0x618 [ 75.701285][ T5197] __arm64_sys_unlinkat+0xe0/0xfc [ 75.702088][ T5197] invoke_syscall+0x98/0x2b0 [ 75.702771][ T5197] el0_svc_common+0x138/0x258 [ 75.703560][ T5197] do_el0_svc+0x58/0x13c [ 75.704258][ T5197] el0_svc+0x78/0x1d0 [ 75.704884][ T5197] el0t_64_sync_handler+0xcc/0xe4 [ 75.705627][ T5197] el0t_64_sync+0x1a0/0x1a4 [ 75.709717][ T801] device hsr_slave_1 left promiscuous mode [ 75.710591][ T5197] ------------[ cut here ]------------ [ 75.711601][ T5197] WARNING: CPU: 1 PID: 5197 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 75.713004][ T5197] Modules linked in: [ 75.713597][ T5197] CPU: 1 PID: 5197 Comm: syz.0.15 Not tainted syzkaller #0 [ 75.714641][ T5197] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.716124][ T5197] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.717293][ T5197] pc : __btrfs_unlink_inode+0x904/0xaec [ 75.718117][ T5197] lr : __btrfs_unlink_inode+0x904/0xaec [ 75.718987][ T5197] sp : ffff80001ff57a60 [ 75.719599][ T5197] x29: ffff80001ff57b10 x28: ffff0000d1ac6000 x27: ffff0000e2f88010 [ 75.720808][ T5197] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ef8a2420 [ 75.722031][ T5197] x23: ffff700003feaf54 x22: dfff800000000000 x21: ffff0000ed5a89d0 [ 75.723190][ T5197] x20: ffff0000debea108 x19: 1fffe0001bd7d421 x18: 0000000000000001 [ 75.724320][ T5197] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 75.725447][ T5197] x14: 0000000000000001 x13: 1ffff00003feae6c x12: 0000000000ff0100 [ 75.726596][ T5197] x11: 0000000000000000 x10: 0000000000000000 x9 : 7aca1ff7be6e8600 [ 75.727773][ T5197] x8 : 7aca1ff7be6e8600 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.728971][ T5197] x5 : ffff80001ff57378 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 75.730137][ T5197] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.731297][ T5197] Call trace: [ 75.731759][ T5197] __btrfs_unlink_inode+0x904/0xaec [ 75.732501][ T5197] btrfs_unlink+0x108/0x258 [ 75.733159][ T5197] vfs_unlink+0x2e0/0x4f4 [ 75.733852][ T5197] do_unlinkat+0x328/0x618 [ 75.734526][ T5197] __arm64_sys_unlinkat+0xe0/0xfc [ 75.735271][ T5197] invoke_syscall+0x98/0x2b0 [ 75.735924][ T5197] el0_svc_common+0x138/0x258 [ 75.736702][ T5197] do_el0_svc+0x58/0x13c [ 75.737295][ T5197] el0_svc+0x78/0x1d0 [ 75.737897][ T5197] el0t_64_sync_handler+0xcc/0xe4 [ 75.738682][ T5197] el0t_64_sync+0x1a0/0x1a4 [ 75.739349][ T5197] irq event stamp: 83438 [ 75.739982][ T5197] hardirqs last enabled at (83437): [] __up_console_sem+0xb4/0xfc [ 75.741348][ T5197] hardirqs last disabled at (83438): [] el1_dbg+0x24/0x80 [ 75.742565][ T5197] softirqs last enabled at (83386): [] handle_softirqs+0xa40/0xbe4 [ 75.744008][ T5197] softirqs last disabled at (83207): [] __irq_exit_rcu+0x240/0x43c [ 75.745477][ T5197] ---[ end trace ceb9a902a589ad43 ]--- [ 75.746970][ T5197] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 75.749622][ T5197] BTRFS info (device loop0): forced readonly [ 75.807813][ T801] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 75.809092][ T801] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 75.810629][ T801] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 75.811849][ T801] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 75.813917][ T801] device bridge_slave_1 left promiscuous mode [ 75.814921][ T801] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.859756][ T801] device bridge_slave_0 left promiscuous mode [ 75.860816][ T801] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.944559][ T5225] loop0: detected capacity change from 0 to 32768 [ 75.977863][ T801] device veth1_macvtap left promiscuous mode [ 75.978902][ T801] device veth0_macvtap left promiscuous mode [ 75.979148][ T5225] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.16 (5225) [ 75.979931][ T801] device veth1_vlan left promiscuous mode [ 75.982731][ T801] device veth0_vlan left promiscuous mode [ 76.063376][ T5225] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.064704][ T5225] BTRFS info (device loop0): using free space tree [ 76.065745][ T5225] BTRFS info (device loop0): has skinny extents [ 76.109386][ T801] team0 (unregistering): Port device team_slave_1 removed [ 76.122351][ T5225] BTRFS info (device loop0): enabling ssd optimizations [ 76.122608][ T801] team0 (unregistering): Port device team_slave_0 removed [ 76.131537][ T5225] FAULT_INJECTION: forcing a failure. [ 76.131537][ T5225] name failslab, interval 1, probability 0, space 0, times 0 [ 76.133487][ T5225] CPU: 1 PID: 5225 Comm: syz.0.16 Tainted: G W syzkaller #0 [ 76.134775][ T5225] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.136206][ T5225] Call trace: [ 76.136667][ T5225] dump_backtrace+0x0/0x458 [ 76.137327][ T5225] show_stack+0x2c/0x3c [ 76.137967][ T5225] __dump_stack+0x30/0x40 [ 76.138720][ T5225] dump_stack_lvl+0xf4/0x15c [ 76.139452][ T5225] dump_stack+0x1c/0x5c [ 76.140116][ T5225] should_fail+0x3bc/0x514 [ 76.140807][ T5225] __should_failslab+0xbc/0x10c [ 76.141550][ T5225] should_failslab+0x10/0x28 [ 76.142316][ T5225] slab_pre_alloc_hook+0x64/0xe8 [ 76.143085][ T5225] kmem_cache_alloc_trace+0x98/0x3ec [ 76.143888][ T5225] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 76.144857][ T5225] __btrfs_unlink_inode+0x350/0xaec [ 76.145673][ T5225] btrfs_unlink+0x108/0x258 [ 76.146432][ T5225] vfs_unlink+0x2e0/0x4f4 [ 76.147102][ T5225] do_unlinkat+0x328/0x618 [ 76.147844][ T5225] __arm64_sys_unlinkat+0xe0/0xfc [ 76.148703][ T5225] invoke_syscall+0x98/0x2b0 [ 76.149467][ T5225] el0_svc_common+0x138/0x258 [ 76.150193][ T5225] do_el0_svc+0x58/0x13c [ 76.150838][ T5225] el0_svc+0x78/0x1d0 [ 76.151465][ T5225] el0t_64_sync_handler+0xcc/0xe4 [ 76.152196][ T5225] el0t_64_sync+0x1a0/0x1a4 [ 76.153052][ T5225] ------------[ cut here ]------------ [ 76.153689][ T801] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 76.155325][ T5225] WARNING: CPU: 1 PID: 5225 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 76.156706][ T5225] Modules linked in: [ 76.157248][ T5225] CPU: 1 PID: 5225 Comm: syz.0.16 Tainted: G W syzkaller #0 [ 76.158469][ T5225] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.159890][ T5225] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.161004][ T5225] pc : __btrfs_unlink_inode+0x904/0xaec [ 76.161845][ T5225] lr : __btrfs_unlink_inode+0x904/0xaec [ 76.162634][ T5225] sp : ffff80001ffa7a60 [ 76.163294][ T5225] x29: ffff80001ffa7b10 x28: ffff0000cce9e000 x27: ffff0000e2de8010 [ 76.164466][ T5225] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c10ad9a0 [ 76.165668][ T5225] x23: ffff700003ff4f54 x22: dfff800000000000 x21: ffff0000ed5f1d70 [ 76.166930][ T5225] x20: ffff0000debe6108 x19: 1fffe0001bd7cc21 x18: 0000000000000001 [ 76.168158][ T5225] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 76.169333][ T5225] x14: 0000000000000001 x13: 1ffff00003ff4e6c x12: 0000000000ff0100 [ 76.170524][ T5225] x11: 0000000000000000 x10: 0000000000000000 x9 : 4719f4d09fb12400 [ 76.171740][ T5225] x8 : 4719f4d09fb12400 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.173032][ T5225] x5 : ffff80001ffa7378 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 76.174249][ T5225] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.175491][ T5225] Call trace: [ 76.175935][ T5225] __btrfs_unlink_inode+0x904/0xaec [ 76.176695][ T5225] btrfs_unlink+0x108/0x258 [ 76.177380][ T5225] vfs_unlink+0x2e0/0x4f4 [ 76.178034][ T5225] do_unlinkat+0x328/0x618 [ 76.178660][ T5225] __arm64_sys_unlinkat+0xe0/0xfc [ 76.179438][ T5225] invoke_syscall+0x98/0x2b0 [ 76.180139][ T5225] el0_svc_common+0x138/0x258 [ 76.180877][ T5225] do_el0_svc+0x58/0x13c [ 76.181542][ T5225] el0_svc+0x78/0x1d0 [ 76.182184][ T5225] el0t_64_sync_handler+0xcc/0xe4 [ 76.182986][ T5225] el0t_64_sync+0x1a0/0x1a4 [ 76.183618][ T5225] irq event stamp: 80178 [ 76.184271][ T5225] hardirqs last enabled at (80177): [] __up_console_sem+0xb4/0xfc [ 76.185776][ T5225] hardirqs last disabled at (80178): [] el1_dbg+0x24/0x80 [ 76.187081][ T5225] softirqs last enabled at (80158): [] handle_softirqs+0xa40/0xbe4 [ 76.188467][ T5225] softirqs last disabled at (80071): [] __irq_exit_rcu+0x240/0x43c [ 76.189865][ T5225] ---[ end trace ceb9a902a589ad44 ]--- [ 76.191231][ T5225] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 76.192718][ T5225] BTRFS info (device loop0): forced readonly [ 76.225209][ T801] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 76.320106][ T4314] Bluetooth: hci0: command 0x0409 tx timeout [ 76.323479][ T801] bond0 (unregistering): Released all slaves [ 76.381488][ T5250] loop0: detected capacity change from 0 to 32768 [ 76.384663][ T5250] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.17 (5250) [ 76.401006][ T5250] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.402387][ T5250] BTRFS info (device loop0): using free space tree [ 76.403407][ T5250] BTRFS info (device loop0): has skinny extents [ 76.429822][ T5250] BTRFS info (device loop0): enabling ssd optimizations [ 76.434724][ T5250] FAULT_INJECTION: forcing a failure. [ 76.434724][ T5250] name failslab, interval 1, probability 0, space 0, times 0 [ 76.436776][ T5250] CPU: 1 PID: 5250 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 76.438157][ T5250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.439665][ T5250] Call trace: [ 76.440167][ T5250] dump_backtrace+0x0/0x458 [ 76.440902][ T5250] show_stack+0x2c/0x3c [ 76.441533][ T5250] __dump_stack+0x30/0x40 [ 76.442224][ T5250] dump_stack_lvl+0xf4/0x15c [ 76.442956][ T5250] dump_stack+0x1c/0x5c [ 76.443526][ T5250] should_fail+0x3bc/0x514 [ 76.444208][ T5250] __should_failslab+0xbc/0x10c [ 76.444917][ T5250] should_failslab+0x10/0x28 [ 76.445641][ T5250] slab_pre_alloc_hook+0x64/0xe8 [ 76.446431][ T5250] kmem_cache_alloc_trace+0x98/0x3ec [ 76.447208][ T5250] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 76.448202][ T5250] __btrfs_unlink_inode+0x350/0xaec [ 76.448960][ T5250] btrfs_unlink+0x108/0x258 [ 76.449684][ T5250] vfs_unlink+0x2e0/0x4f4 [ 76.450313][ T5250] do_unlinkat+0x328/0x618 [ 76.450965][ T5250] __arm64_sys_unlinkat+0xe0/0xfc [ 76.451725][ T5250] invoke_syscall+0x98/0x2b0 [ 76.452436][ T5250] el0_svc_common+0x138/0x258 [ 76.453134][ T5250] do_el0_svc+0x58/0x13c [ 76.453768][ T5250] el0_svc+0x78/0x1d0 [ 76.454354][ T5250] el0t_64_sync_handler+0xcc/0xe4 [ 76.455080][ T5250] el0t_64_sync+0x1a0/0x1a4 [ 76.457186][ T5250] ------------[ cut here ]------------ [ 76.460875][ T5250] WARNING: CPU: 1 PID: 5250 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 76.462477][ T5250] Modules linked in: [ 76.463119][ T5250] CPU: 1 PID: 5250 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 76.464565][ T5250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.466056][ T5250] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.467144][ T5250] pc : __btrfs_unlink_inode+0x904/0xaec [ 76.467985][ T5250] lr : __btrfs_unlink_inode+0x904/0xaec [ 76.468871][ T5250] sp : ffff800020137a60 [ 76.469524][ T5250] x29: ffff800020137b10 x28: ffff0000d006e000 x27: ffff0000e2de8410 [ 76.470813][ T5250] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000eced78f0 [ 76.472034][ T5250] x23: ffff700004026f54 x22: dfff800000000000 x21: ffff0000ed5f44b0 [ 76.473246][ T5250] x20: ffff0000debe6268 x19: 1fffe0001bd7cc4d x18: 0000000000000001 [ 76.474507][ T5250] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 76.475669][ T5250] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 76.476827][ T5250] x11: 0000000000000000 x10: 0000000000000000 x9 : e06f02d77e6ab100 [ 76.478092][ T5250] x8 : e06f02d77e6ab100 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.479365][ T5250] x5 : ffff800020137378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 76.480620][ T5250] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.481898][ T5250] Call trace: [ 76.482387][ T5250] __btrfs_unlink_inode+0x904/0xaec [ 76.483234][ T5250] btrfs_unlink+0x108/0x258 [ 76.483971][ T5250] vfs_unlink+0x2e0/0x4f4 [ 76.484632][ T5250] do_unlinkat+0x328/0x618 [ 76.485281][ T5250] __arm64_sys_unlinkat+0xe0/0xfc [ 76.486050][ T5250] invoke_syscall+0x98/0x2b0 [ 76.486734][ T5250] el0_svc_common+0x138/0x258 [ 76.487443][ T5250] do_el0_svc+0x58/0x13c [ 76.488072][ T5250] el0_svc+0x78/0x1d0 [ 76.488701][ T5250] el0t_64_sync_handler+0xcc/0xe4 [ 76.489464][ T5250] el0t_64_sync+0x1a0/0x1a4 [ 76.490185][ T5250] irq event stamp: 80348 [ 76.490809][ T5250] hardirqs last enabled at (80347): [] __up_console_sem+0xb4/0xfc [ 76.492258][ T5250] hardirqs last disabled at (80348): [] el1_dbg+0x24/0x80 [ 76.493555][ T5250] softirqs last enabled at (80336): [] handle_softirqs+0xa40/0xbe4 [ 76.495016][ T5250] softirqs last disabled at (80237): [] __irq_exit_rcu+0x240/0x43c [ 76.496471][ T5250] ---[ end trace ceb9a902a589ad45 ]--- [ 76.500681][ T5250] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 76.502230][ T5250] BTRFS info (device loop0): forced readonly [ 76.651416][ T5272] loop0: detected capacity change from 0 to 32768 [ 76.696286][ T5272] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.18 (5272) [ 76.703186][ T5272] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.704544][ T5272] BTRFS info (device loop0): using free space tree [ 76.705700][ T5272] BTRFS info (device loop0): has skinny extents [ 76.717739][ T5272] BTRFS info (device loop0): enabling ssd optimizations [ 76.721870][ T5272] FAULT_INJECTION: forcing a failure. [ 76.721870][ T5272] name failslab, interval 1, probability 0, space 0, times 0 [ 76.723825][ T5272] CPU: 0 PID: 5272 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 76.725128][ T5272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.726644][ T5272] Call trace: [ 76.727121][ T5272] dump_backtrace+0x0/0x458 [ 76.727803][ T5272] show_stack+0x2c/0x3c [ 76.728413][ T5272] __dump_stack+0x30/0x40 [ 76.729077][ T5272] dump_stack_lvl+0xf4/0x15c [ 76.729833][ T5272] dump_stack+0x1c/0x5c [ 76.730503][ T5272] should_fail+0x3bc/0x514 [ 76.731183][ T5272] __should_failslab+0xbc/0x10c [ 76.731934][ T5272] should_failslab+0x10/0x28 [ 76.732604][ T5272] slab_pre_alloc_hook+0x64/0xe8 [ 76.733282][ T5272] kmem_cache_alloc_trace+0x98/0x3ec [ 76.734099][ T5272] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 76.734989][ T5272] __btrfs_unlink_inode+0x350/0xaec [ 76.735793][ T5272] btrfs_unlink+0x108/0x258 [ 76.736488][ T5272] vfs_unlink+0x2e0/0x4f4 [ 76.737113][ T5272] do_unlinkat+0x328/0x618 [ 76.737789][ T5272] __arm64_sys_unlinkat+0xe0/0xfc [ 76.738548][ T5272] invoke_syscall+0x98/0x2b0 [ 76.739281][ T5272] el0_svc_common+0x138/0x258 [ 76.739984][ T5272] do_el0_svc+0x58/0x13c [ 76.740632][ T5272] el0_svc+0x78/0x1d0 [ 76.741278][ T5272] el0t_64_sync_handler+0xcc/0xe4 [ 76.742042][ T5272] el0t_64_sync+0x1a0/0x1a4 [ 76.746746][ T5272] ------------[ cut here ]------------ [ 76.747858][ T5272] WARNING: CPU: 0 PID: 5272 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 76.749348][ T5272] Modules linked in: [ 76.749941][ T5272] CPU: 0 PID: 5272 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 76.751273][ T5272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.752725][ T5272] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.753867][ T5272] pc : __btrfs_unlink_inode+0x904/0xaec [ 76.754728][ T5272] lr : __btrfs_unlink_inode+0x904/0xaec [ 76.755488][ T5272] sp : ffff800020317a60 [ 76.756069][ T5272] x29: ffff800020317b10 x28: ffff0000e8bb2000 x27: ffff0000e2f88410 [ 76.757244][ T5272] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cc72f840 [ 76.758419][ T5272] x23: ffff700004062f54 x22: dfff800000000000 x21: ffff0000ed5aa740 [ 76.759598][ T5272] x20: ffff0000debea268 x19: 1fffe0001bd7d44d x18: 0000000000000001 [ 76.760822][ T5272] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 76.762022][ T5272] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 76.763268][ T5272] x11: 0000000000000000 x10: 0000000000000000 x9 : ff9010bbf8cbae00 [ 76.764420][ T5272] x8 : ff9010bbf8cbae00 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.765563][ T5272] x5 : ffff800020317378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 76.766760][ T5272] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.767951][ T5272] Call trace: [ 76.768459][ T5272] __btrfs_unlink_inode+0x904/0xaec [ 76.769236][ T5272] btrfs_unlink+0x108/0x258 [ 76.769963][ T5272] vfs_unlink+0x2e0/0x4f4 [ 76.770601][ T5272] do_unlinkat+0x328/0x618 [ 76.771257][ T5272] __arm64_sys_unlinkat+0xe0/0xfc [ 76.771995][ T5272] invoke_syscall+0x98/0x2b0 [ 76.772644][ T5272] el0_svc_common+0x138/0x258 [ 76.773375][ T5272] do_el0_svc+0x58/0x13c [ 76.774018][ T5272] el0_svc+0x78/0x1d0 [ 76.774649][ T5272] el0t_64_sync_handler+0xcc/0xe4 [ 76.775438][ T5272] el0t_64_sync+0x1a0/0x1a4 [ 76.776129][ T5272] irq event stamp: 80500 [ 76.776798][ T5272] hardirqs last enabled at (80499): [] __up_console_sem+0xb4/0xfc [ 76.778248][ T5272] hardirqs last disabled at (80500): [] el1_dbg+0x24/0x80 [ 76.779522][ T5272] softirqs last enabled at (80490): [] handle_softirqs+0xa40/0xbe4 [ 76.781056][ T5272] softirqs last disabled at (80401): [] __irq_exit_rcu+0x240/0x43c [ 76.782506][ T5272] ---[ end trace ceb9a902a589ad46 ]--- [ 76.785391][ T5272] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 76.787040][ T5272] BTRFS info (device loop0): forced readonly [ 76.930165][ T5295] loop0: detected capacity change from 0 to 32768 [ 77.019492][ T5295] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.19 (5295) [ 77.023505][ T5295] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.024935][ T5295] BTRFS info (device loop0): using free space tree [ 77.025948][ T5295] BTRFS info (device loop0): has skinny extents [ 77.034924][ T5295] BTRFS info (device loop0): enabling ssd optimizations [ 77.045513][ T5295] FAULT_INJECTION: forcing a failure. [ 77.045513][ T5295] name failslab, interval 1, probability 0, space 0, times 0 [ 77.047725][ T5295] CPU: 0 PID: 5295 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 77.049034][ T5295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.050664][ T5295] Call trace: [ 77.051148][ T5295] dump_backtrace+0x0/0x458 [ 77.051909][ T5295] show_stack+0x2c/0x3c [ 77.052530][ T5295] __dump_stack+0x30/0x40 [ 77.053217][ T5295] dump_stack_lvl+0xf4/0x15c [ 77.053957][ T5295] dump_stack+0x1c/0x5c [ 77.054607][ T5295] should_fail+0x3bc/0x514 [ 77.055286][ T5295] __should_failslab+0xbc/0x10c [ 77.056076][ T5295] should_failslab+0x10/0x28 [ 77.056776][ T5295] slab_pre_alloc_hook+0x64/0xe8 [ 77.057570][ T5295] kmem_cache_alloc+0x94/0x3d4 [ 77.058323][ T5295] btrfs_alloc_path+0x5c/0x68 [ 77.059099][ T5295] __btrfs_unlink_inode+0x1dc/0xaec [ 77.059904][ T5295] btrfs_unlink+0x108/0x258 [ 77.060641][ T5295] vfs_unlink+0x2e0/0x4f4 [ 77.061375][ T5295] do_unlinkat+0x328/0x618 [ 77.062065][ T5295] __arm64_sys_unlinkat+0xe0/0xfc [ 77.062826][ T5295] invoke_syscall+0x98/0x2b0 [ 77.063490][ T5295] el0_svc_common+0x138/0x258 [ 77.064174][ T5295] do_el0_svc+0x58/0x13c [ 77.064841][ T5295] el0_svc+0x78/0x1d0 [ 77.065435][ T5295] el0t_64_sync_handler+0xcc/0xe4 [ 77.066199][ T5295] el0t_64_sync+0x1a0/0x1a4 [ 77.238363][ T5317] loop0: detected capacity change from 0 to 32768 [ 77.242517][ T5317] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.20 (5317) [ 77.247904][ T5317] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.249602][ T5317] BTRFS info (device loop0): using free space tree [ 77.250774][ T5317] BTRFS info (device loop0): has skinny extents [ 77.258552][ T5317] BTRFS info (device loop0): enabling ssd optimizations [ 77.264056][ T5317] FAULT_INJECTION: forcing a failure. [ 77.264056][ T5317] name failslab, interval 1, probability 0, space 0, times 0 [ 77.265970][ T5317] CPU: 1 PID: 5317 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 77.267245][ T5317] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.268735][ T5317] Call trace: [ 77.269214][ T5317] dump_backtrace+0x0/0x458 [ 77.269925][ T5317] show_stack+0x2c/0x3c [ 77.270583][ T5317] __dump_stack+0x30/0x40 [ 77.271195][ T5317] dump_stack_lvl+0xf4/0x15c [ 77.271887][ T5317] dump_stack+0x1c/0x5c [ 77.272514][ T5317] should_fail+0x3bc/0x514 [ 77.273200][ T5317] __should_failslab+0xbc/0x10c [ 77.273935][ T5317] should_failslab+0x10/0x28 [ 77.274620][ T5317] slab_pre_alloc_hook+0x64/0xe8 [ 77.275373][ T5317] kmem_cache_alloc_trace+0x98/0x3ec [ 77.276173][ T5317] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 77.277075][ T5317] __btrfs_unlink_inode+0x350/0xaec [ 77.277867][ T5317] btrfs_unlink+0x108/0x258 [ 77.278556][ T5317] vfs_unlink+0x2e0/0x4f4 [ 77.279198][ T5317] do_unlinkat+0x328/0x618 [ 77.279852][ T5317] __arm64_sys_unlinkat+0xe0/0xfc [ 77.280595][ T5317] invoke_syscall+0x98/0x2b0 [ 77.281291][ T5317] el0_svc_common+0x138/0x258 [ 77.282009][ T5317] do_el0_svc+0x58/0x13c [ 77.282646][ T5317] el0_svc+0x78/0x1d0 [ 77.283254][ T5317] el0t_64_sync_handler+0xcc/0xe4 [ 77.284002][ T5317] el0t_64_sync+0x1a0/0x1a4 [ 77.285575][ T5317] ------------[ cut here ]------------ [ 77.286482][ T5317] WARNING: CPU: 1 PID: 5317 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 77.287829][ T5317] Modules linked in: [ 77.288420][ T5317] CPU: 1 PID: 5317 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 77.289659][ T5317] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.291086][ T5317] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.292180][ T5317] pc : __btrfs_unlink_inode+0x904/0xaec [ 77.293026][ T5317] lr : __btrfs_unlink_inode+0x904/0xaec [ 77.293800][ T5317] sp : ffff80001f677a60 [ 77.294384][ T5317] x29: ffff80001f677b10 x28: ffff0000d58a6000 x27: ffff0000e2de8810 [ 77.295567][ T5317] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000efb249a0 [ 77.296719][ T5317] x23: ffff700003ecef54 x22: dfff800000000000 x21: ffff0000ed5009d0 [ 77.297919][ T5317] x20: ffff0000debe6528 x19: 1fffe0001bd7cca5 x18: 0000000000000001 [ 77.299097][ T5317] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 77.300295][ T5317] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 77.301448][ T5317] x11: 0000000000000000 x10: 0000000000000000 x9 : d876211da4439a00 [ 77.302614][ T5317] x8 : d876211da4439a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.303772][ T5317] x5 : ffff80001f677378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 77.304891][ T5317] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.306068][ T5317] Call trace: [ 77.306525][ T5317] __btrfs_unlink_inode+0x904/0xaec [ 77.307258][ T5317] btrfs_unlink+0x108/0x258 [ 77.307900][ T5317] vfs_unlink+0x2e0/0x4f4 [ 77.308522][ T5317] do_unlinkat+0x328/0x618 [ 77.309172][ T5317] __arm64_sys_unlinkat+0xe0/0xfc [ 77.309933][ T5317] invoke_syscall+0x98/0x2b0 [ 77.310610][ T5317] el0_svc_common+0x138/0x258 [ 77.311283][ T5317] do_el0_svc+0x58/0x13c [ 77.311904][ T5317] el0_svc+0x78/0x1d0 [ 77.312483][ T5317] el0t_64_sync_handler+0xcc/0xe4 [ 77.313205][ T5317] el0t_64_sync+0x1a0/0x1a4 [ 77.313824][ T5317] irq event stamp: 81154 [ 77.314440][ T5317] hardirqs last enabled at (81153): [] __up_console_sem+0xb4/0xfc [ 77.315801][ T5317] hardirqs last disabled at (81154): [] el1_dbg+0x24/0x80 [ 77.317054][ T5317] softirqs last enabled at (81134): [] handle_softirqs+0xa40/0xbe4 [ 77.318460][ T5317] softirqs last disabled at (81099): [] __irq_exit_rcu+0x240/0x43c [ 77.319882][ T5317] ---[ end trace ceb9a902a589ad47 ]--- [ 77.322504][ T5317] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 77.323976][ T5317] BTRFS info (device loop0): forced readonly [ 77.462791][ T5339] loop0: detected capacity change from 0 to 32768 [ 77.529327][ T5339] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.21 (5339) [ 77.568696][ T5339] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.570172][ T5339] BTRFS info (device loop0): using free space tree [ 77.571169][ T5339] BTRFS info (device loop0): has skinny extents [ 77.737606][ T5339] BTRFS info (device loop0): enabling ssd optimizations [ 77.742874][ T5339] FAULT_INJECTION: forcing a failure. [ 77.742874][ T5339] name failslab, interval 1, probability 0, space 0, times 0 [ 77.744959][ T5339] CPU: 1 PID: 5339 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 77.746312][ T5339] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.747717][ T5339] Call trace: [ 77.748255][ T5339] dump_backtrace+0x0/0x458 [ 77.748915][ T5339] show_stack+0x2c/0x3c [ 77.749546][ T5339] __dump_stack+0x30/0x40 [ 77.750153][ T5339] dump_stack_lvl+0xf4/0x15c [ 77.750823][ T5339] dump_stack+0x1c/0x5c [ 77.751420][ T5339] should_fail+0x3bc/0x514 [ 77.752092][ T5339] __should_failslab+0xbc/0x10c [ 77.752839][ T5339] should_failslab+0x10/0x28 [ 77.753508][ T5339] slab_pre_alloc_hook+0x64/0xe8 [ 77.754276][ T5339] kmem_cache_alloc_trace+0x98/0x3ec [ 77.755037][ T5339] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 77.755912][ T5339] __btrfs_unlink_inode+0x350/0xaec [ 77.756669][ T5339] btrfs_unlink+0x108/0x258 [ 77.757323][ T5339] vfs_unlink+0x2e0/0x4f4 [ 77.757939][ T5339] do_unlinkat+0x328/0x618 [ 77.758574][ T5339] __arm64_sys_unlinkat+0xe0/0xfc [ 77.759294][ T5339] invoke_syscall+0x98/0x2b0 [ 77.760017][ T5339] el0_svc_common+0x138/0x258 [ 77.760731][ T5339] do_el0_svc+0x58/0x13c [ 77.761398][ T5339] el0_svc+0x78/0x1d0 [ 77.762045][ T5339] el0t_64_sync_handler+0xcc/0xe4 [ 77.762814][ T5339] el0t_64_sync+0x1a0/0x1a4 [ 77.788155][ T5339] ------------[ cut here ]------------ [ 77.789148][ T5339] WARNING: CPU: 1 PID: 5339 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 77.790605][ T5339] Modules linked in: [ 77.791215][ T5339] CPU: 1 PID: 5339 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 77.792609][ T5339] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.794205][ T5339] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.795426][ T5339] pc : __btrfs_unlink_inode+0x904/0xaec [ 77.796239][ T5339] lr : __btrfs_unlink_inode+0x904/0xaec [ 77.797166][ T5339] sp : ffff80001f677a60 [ 77.797799][ T5339] x29: ffff80001f677b10 x28: ffff0000d61dc000 x27: ffff0000e2de8c10 [ 77.799067][ T5339] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d241cb00 [ 77.800334][ T5339] x23: ffff700003ecef54 x22: dfff800000000000 x21: ffff0000ed503110 [ 77.801501][ T5339] x20: ffff0000debe6688 x19: 1fffe0001bd7ccd1 x18: 0000000000000001 [ 77.802717][ T5339] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 77.803914][ T5339] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 77.805173][ T5339] x11: 0000000000000000 x10: 0000000000000000 x9 : 21422a4df72f9f00 [ 77.806358][ T5339] x8 : 21422a4df72f9f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.807522][ T5339] x5 : ffff80001f677378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 77.808712][ T5339] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.809887][ T5339] Call trace: [ 77.810400][ T5339] __btrfs_unlink_inode+0x904/0xaec [ 77.811233][ T5339] btrfs_unlink+0x108/0x258 [ 77.811952][ T5339] vfs_unlink+0x2e0/0x4f4 [ 77.812663][ T5339] do_unlinkat+0x328/0x618 [ 77.813323][ T5339] __arm64_sys_unlinkat+0xe0/0xfc [ 77.814060][ T5339] invoke_syscall+0x98/0x2b0 [ 77.814755][ T5339] el0_svc_common+0x138/0x258 [ 77.815466][ T5339] do_el0_svc+0x58/0x13c [ 77.816097][ T5339] el0_svc+0x78/0x1d0 [ 77.816670][ T5339] el0t_64_sync_handler+0xcc/0xe4 [ 77.817426][ T5339] el0t_64_sync+0x1a0/0x1a4 [ 77.818061][ T5339] irq event stamp: 81502 [ 77.818668][ T5339] hardirqs last enabled at (81501): [] __up_console_sem+0xb4/0xfc [ 77.820081][ T5339] hardirqs last disabled at (81502): [] el1_dbg+0x24/0x80 [ 77.821384][ T5339] softirqs last enabled at (81482): [] handle_softirqs+0xa40/0xbe4 [ 77.822789][ T5339] softirqs last disabled at (81473): [] __irq_exit_rcu+0x240/0x43c [ 77.824195][ T5339] ---[ end trace ceb9a902a589ad48 ]--- [ 77.858238][ T5339] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 77.859763][ T5339] BTRFS info (device loop0): forced readonly [ 78.019425][ T5364] loop0: detected capacity change from 0 to 32768 [ 78.120873][ T5364] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.22 (5364) [ 78.124102][ T5364] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.125542][ T5364] BTRFS info (device loop0): using free space tree [ 78.126583][ T5364] BTRFS info (device loop0): has skinny extents [ 78.135522][ T5364] BTRFS info (device loop0): enabling ssd optimizations [ 78.141614][ T5364] FAULT_INJECTION: forcing a failure. [ 78.141614][ T5364] name failslab, interval 1, probability 0, space 0, times 0 [ 78.143598][ T5364] CPU: 1 PID: 5364 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 78.144824][ T5364] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.146304][ T5364] Call trace: [ 78.146798][ T5364] dump_backtrace+0x0/0x458 [ 78.147482][ T5364] show_stack+0x2c/0x3c [ 78.148144][ T5364] __dump_stack+0x30/0x40 [ 78.148801][ T5364] dump_stack_lvl+0xf4/0x15c [ 78.149546][ T5364] dump_stack+0x1c/0x5c [ 78.150137][ T5364] should_fail+0x3bc/0x514 [ 78.150781][ T5364] __should_failslab+0xbc/0x10c [ 78.151466][ T5364] should_failslab+0x10/0x28 [ 78.152144][ T5364] slab_pre_alloc_hook+0x64/0xe8 [ 78.152877][ T5364] kmem_cache_alloc_trace+0x98/0x3ec [ 78.153661][ T5364] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 78.154545][ T5364] __btrfs_unlink_inode+0x350/0xaec [ 78.155287][ T5364] btrfs_unlink+0x108/0x258 [ 78.155959][ T5364] vfs_unlink+0x2e0/0x4f4 [ 78.156628][ T5364] do_unlinkat+0x328/0x618 [ 78.157255][ T5364] __arm64_sys_unlinkat+0xe0/0xfc [ 78.158018][ T5364] invoke_syscall+0x98/0x2b0 [ 78.158701][ T5364] el0_svc_common+0x138/0x258 [ 78.159363][ T5364] do_el0_svc+0x58/0x13c [ 78.159974][ T5364] el0_svc+0x78/0x1d0 [ 78.160575][ T5364] el0t_64_sync_handler+0xcc/0xe4 [ 78.161321][ T5364] el0t_64_sync+0x1a0/0x1a4 [ 78.162738][ T5364] ------------[ cut here ]------------ [ 78.163714][ T5364] WARNING: CPU: 1 PID: 5364 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 78.165117][ T5364] Modules linked in: [ 78.165675][ T5364] CPU: 1 PID: 5364 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 78.166921][ T5364] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.168321][ T5364] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.169469][ T5364] pc : __btrfs_unlink_inode+0x904/0xaec [ 78.170283][ T5364] lr : __btrfs_unlink_inode+0x904/0xaec [ 78.171064][ T5364] sp : ffff8000204c7a60 [ 78.171687][ T5364] x29: ffff8000204c7b10 x28: ffff0000d5fe2000 x27: ffff0000e2de9010 [ 78.172940][ T5364] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d5d448f0 [ 78.174193][ T5364] x23: ffff700004098f54 x22: dfff800000000000 x21: ffff0000ed5044b0 [ 78.175446][ T5364] x20: ffff0000debe67e8 x19: 1fffe0001bd7ccfd x18: 0000000000000001 [ 78.176679][ T5364] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 78.177867][ T5364] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 78.179167][ T5364] x11: 0000000000000000 x10: 0000000000000000 x9 : 8b863cbf142e0d00 [ 78.180392][ T5364] x8 : 8b863cbf142e0d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.181628][ T5364] x5 : ffff8000204c7378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 78.182858][ T5364] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.184093][ T5364] Call trace: [ 78.184597][ T5364] __btrfs_unlink_inode+0x904/0xaec [ 78.185364][ T5364] btrfs_unlink+0x108/0x258 [ 78.186069][ T5364] vfs_unlink+0x2e0/0x4f4 [ 78.186741][ T5364] do_unlinkat+0x328/0x618 [ 78.187454][ T5364] __arm64_sys_unlinkat+0xe0/0xfc [ 78.188242][ T5364] invoke_syscall+0x98/0x2b0 [ 78.188953][ T5364] el0_svc_common+0x138/0x258 [ 78.189697][ T5364] do_el0_svc+0x58/0x13c [ 78.190358][ T5364] el0_svc+0x78/0x1d0 [ 78.190893][ T5364] el0t_64_sync_handler+0xcc/0xe4 [ 78.191656][ T5364] el0t_64_sync+0x1a0/0x1a4 [ 78.192478][ T5364] irq event stamp: 80638 [ 78.193105][ T5364] hardirqs last enabled at (80637): [] __up_console_sem+0xb4/0xfc [ 78.194524][ T5364] hardirqs last disabled at (80638): [] el1_dbg+0x24/0x80 [ 78.195821][ T5364] softirqs last enabled at (80618): [] handle_softirqs+0xa40/0xbe4 [ 78.197243][ T5364] softirqs last disabled at (80583): [] __irq_exit_rcu+0x240/0x43c [ 78.198581][ T5364] ---[ end trace ceb9a902a589ad49 ]--- [ 78.200531][ T5364] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 78.201933][ T5364] BTRFS info (device loop0): forced readonly [ 78.376349][ T5386] loop0: detected capacity change from 0 to 32768 [ 78.397599][ T4355] Bluetooth: hci0: command 0x041b tx timeout [ 78.433831][ T5386] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.23 (5386) [ 78.437213][ T5386] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.440077][ T5386] BTRFS info (device loop0): using free space tree [ 78.441088][ T5386] BTRFS info (device loop0): has skinny extents [ 78.451970][ T5386] BTRFS info (device loop0): enabling ssd optimizations [ 78.456374][ T5386] FAULT_INJECTION: forcing a failure. [ 78.456374][ T5386] name failslab, interval 1, probability 0, space 0, times 0 [ 78.459215][ T5386] CPU: 0 PID: 5386 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 78.460442][ T5386] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.461998][ T5386] Call trace: [ 78.462489][ T5386] dump_backtrace+0x0/0x458 [ 78.463159][ T5386] show_stack+0x2c/0x3c [ 78.463782][ T5386] __dump_stack+0x30/0x40 [ 78.464395][ T5386] dump_stack_lvl+0xf4/0x15c [ 78.465027][ T5386] dump_stack+0x1c/0x5c [ 78.465637][ T5386] should_fail+0x3bc/0x514 [ 78.466285][ T5386] __should_failslab+0xbc/0x10c [ 78.467037][ T5386] should_failslab+0x10/0x28 [ 78.467742][ T5386] slab_pre_alloc_hook+0x64/0xe8 [ 78.468527][ T5386] kmem_cache_alloc_trace+0x98/0x3ec [ 78.469333][ T5386] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 78.470205][ T5386] __btrfs_unlink_inode+0x350/0xaec [ 78.470997][ T5386] btrfs_unlink+0x108/0x258 [ 78.471714][ T5386] vfs_unlink+0x2e0/0x4f4 [ 78.472343][ T5386] do_unlinkat+0x328/0x618 [ 78.472994][ T5386] __arm64_sys_unlinkat+0xe0/0xfc [ 78.473733][ T5386] invoke_syscall+0x98/0x2b0 [ 78.474463][ T5386] el0_svc_common+0x138/0x258 [ 78.475125][ T5386] do_el0_svc+0x58/0x13c [ 78.475779][ T5386] el0_svc+0x78/0x1d0 [ 78.476372][ T5386] el0t_64_sync_handler+0xcc/0xe4 [ 78.477103][ T5386] el0t_64_sync+0x1a0/0x1a4 [ 78.487758][ T5386] ------------[ cut here ]------------ [ 78.488691][ T5386] WARNING: CPU: 1 PID: 5386 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 78.490118][ T5386] Modules linked in: [ 78.490695][ T5386] CPU: 1 PID: 5386 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 78.491949][ T5386] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.493437][ T5386] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.494560][ T5386] pc : __btrfs_unlink_inode+0x904/0xaec [ 78.495383][ T5386] lr : __btrfs_unlink_inode+0x904/0xaec [ 78.496176][ T5386] sp : ffff800020d07a60 [ 78.496785][ T5386] x29: ffff800020d07b10 x28: ffff0000c9dc6000 x27: ffff0000e2f88c10 [ 78.497971][ T5386] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cd7d4c60 [ 78.499230][ T5386] x23: ffff7000041a0f54 x22: dfff800000000000 x21: ffff0000ed5af5c0 [ 78.500470][ T5386] x20: ffff0000debea528 x19: 1fffe0001bd7d4a5 x18: 0000000000000001 [ 78.501717][ T5386] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 78.502933][ T5386] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 78.504132][ T5386] x11: 0000000000000000 x10: 0000000000000000 x9 : cbc441cb1e60ef00 [ 78.505339][ T5386] x8 : cbc441cb1e60ef00 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.506523][ T5386] x5 : ffff800020d07378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 78.507767][ T5386] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.509014][ T5386] Call trace: [ 78.509517][ T5386] __btrfs_unlink_inode+0x904/0xaec [ 78.510296][ T5386] btrfs_unlink+0x108/0x258 [ 78.510991][ T5386] vfs_unlink+0x2e0/0x4f4 [ 78.511685][ T5386] do_unlinkat+0x328/0x618 [ 78.512332][ T5386] __arm64_sys_unlinkat+0xe0/0xfc [ 78.513091][ T5386] invoke_syscall+0x98/0x2b0 [ 78.513773][ T5386] el0_svc_common+0x138/0x258 [ 78.514504][ T5386] do_el0_svc+0x58/0x13c [ 78.515145][ T5386] el0_svc+0x78/0x1d0 [ 78.515732][ T5386] el0t_64_sync_handler+0xcc/0xe4 [ 78.516460][ T5386] el0t_64_sync+0x1a0/0x1a4 [ 78.517120][ T5386] irq event stamp: 81854 [ 78.517759][ T5386] hardirqs last enabled at (81853): [] __up_console_sem+0xb4/0xfc [ 78.519110][ T5386] hardirqs last disabled at (81854): [] el1_dbg+0x24/0x80 [ 78.520364][ T5386] softirqs last enabled at (81834): [] handle_softirqs+0xa40/0xbe4 [ 78.521759][ T5386] softirqs last disabled at (81721): [] __irq_exit_rcu+0x240/0x43c [ 78.523088][ T5386] ---[ end trace ceb9a902a589ad4a ]--- [ 78.526466][ T5386] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 78.528876][ T5386] BTRFS info (device loop0): forced readonly [ 78.679122][ T5409] loop0: detected capacity change from 0 to 32768 [ 78.758589][ T5409] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.24 (5409) [ 78.761566][ T5409] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.762977][ T5409] BTRFS info (device loop0): using free space tree [ 78.764149][ T5409] BTRFS info (device loop0): has skinny extents [ 78.772406][ T5409] BTRFS info (device loop0): enabling ssd optimizations [ 78.776693][ T5409] FAULT_INJECTION: forcing a failure. [ 78.776693][ T5409] name failslab, interval 1, probability 0, space 0, times 0 [ 78.778814][ T5409] CPU: 1 PID: 5409 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 78.780146][ T5409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.781650][ T5409] Call trace: [ 78.782126][ T5409] dump_backtrace+0x0/0x458 [ 78.782783][ T5409] show_stack+0x2c/0x3c [ 78.783407][ T5409] __dump_stack+0x30/0x40 [ 78.784036][ T5409] dump_stack_lvl+0xf4/0x15c [ 78.784716][ T5409] dump_stack+0x1c/0x5c [ 78.785345][ T5409] should_fail+0x3bc/0x514 [ 78.786046][ T5409] __should_failslab+0xbc/0x10c [ 78.786796][ T5409] should_failslab+0x10/0x28 [ 78.787483][ T5409] slab_pre_alloc_hook+0x64/0xe8 [ 78.788213][ T5409] kmem_cache_alloc_trace+0x98/0x3ec [ 78.788987][ T5409] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 78.789937][ T5409] __btrfs_unlink_inode+0x350/0xaec [ 78.790772][ T5409] btrfs_unlink+0x108/0x258 [ 78.791483][ T5409] vfs_unlink+0x2e0/0x4f4 [ 78.792093][ T5409] do_unlinkat+0x328/0x618 [ 78.792788][ T5409] __arm64_sys_unlinkat+0xe0/0xfc [ 78.793538][ T5409] invoke_syscall+0x98/0x2b0 [ 78.794207][ T5409] el0_svc_common+0x138/0x258 [ 78.794894][ T5409] do_el0_svc+0x58/0x13c [ 78.795550][ T5409] el0_svc+0x78/0x1d0 [ 78.796141][ T5409] el0t_64_sync_handler+0xcc/0xe4 [ 78.796924][ T5409] el0t_64_sync+0x1a0/0x1a4 [ 78.798397][ T5409] ------------[ cut here ]------------ [ 78.799384][ T5409] WARNING: CPU: 1 PID: 5409 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 78.800671][ T5409] Modules linked in: [ 78.801234][ T5409] CPU: 1 PID: 5409 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 78.802426][ T5409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.803828][ T5409] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.804928][ T5409] pc : __btrfs_unlink_inode+0x904/0xaec [ 78.805668][ T5409] lr : __btrfs_unlink_inode+0x904/0xaec [ 78.806493][ T5409] sp : ffff800020ce7a60 [ 78.807144][ T5409] x29: ffff800020ce7b10 x28: ffff0000c7e46000 x27: ffff0000e2de9410 [ 78.808402][ T5409] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d1e66840 [ 78.809586][ T5409] x23: ffff70000419cf54 x22: dfff800000000000 x21: ffff0000ed506bf0 [ 78.810831][ T5409] x20: ffff0000debe6948 x19: 1fffe0001bd7cd29 x18: 0000000000000001 [ 78.812034][ T5409] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 78.813239][ T5409] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 78.814438][ T5409] x11: 0000000000000000 x10: 0000000000000000 x9 : 61c237ae5ed56000 [ 78.815595][ T5409] x8 : 61c237ae5ed56000 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.816815][ T5409] x5 : ffff800020ce7378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 78.818018][ T5409] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.819203][ T5409] Call trace: [ 78.819682][ T5409] __btrfs_unlink_inode+0x904/0xaec [ 78.820461][ T5409] btrfs_unlink+0x108/0x258 [ 78.821172][ T5409] vfs_unlink+0x2e0/0x4f4 [ 78.821804][ T5409] do_unlinkat+0x328/0x618 [ 78.822466][ T5409] __arm64_sys_unlinkat+0xe0/0xfc [ 78.823204][ T5409] invoke_syscall+0x98/0x2b0 [ 78.823852][ T5409] el0_svc_common+0x138/0x258 [ 78.824523][ T5409] do_el0_svc+0x58/0x13c [ 78.825179][ T5409] el0_svc+0x78/0x1d0 [ 78.825754][ T5409] el0t_64_sync_handler+0xcc/0xe4 [ 78.826574][ T5409] el0t_64_sync+0x1a0/0x1a4 [ 78.827369][ T5409] irq event stamp: 79956 [ 78.828022][ T5409] hardirqs last enabled at (79955): [] __up_console_sem+0xb4/0xfc [ 78.829495][ T5409] hardirqs last disabled at (79956): [] el1_dbg+0x24/0x80 [ 78.830763][ T5409] softirqs last enabled at (79936): [] handle_softirqs+0xa40/0xbe4 [ 78.832172][ T5409] softirqs last disabled at (79919): [] __irq_exit_rcu+0x240/0x43c [ 78.833538][ T5409] ---[ end trace ceb9a902a589ad4b ]--- [ 78.835281][ T5409] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 78.836722][ T5409] BTRFS info (device loop0): forced readonly [ 79.009016][ T5431] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.25 (5431) [ 79.049273][ T5431] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.050732][ T5431] BTRFS info (device loop0): using free space tree [ 79.051720][ T5431] BTRFS info (device loop0): has skinny extents [ 79.061095][ T5431] BTRFS info (device loop0): enabling ssd optimizations [ 79.066106][ T5431] FAULT_INJECTION: forcing a failure. [ 79.066106][ T5431] name failslab, interval 1, probability 0, space 0, times 0 [ 79.069264][ T5431] CPU: 0 PID: 5431 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 79.070567][ T5431] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.072138][ T5431] Call trace: [ 79.072621][ T5431] dump_backtrace+0x0/0x458 [ 79.073387][ T5431] show_stack+0x2c/0x3c [ 79.074050][ T5431] __dump_stack+0x30/0x40 [ 79.074747][ T5431] dump_stack_lvl+0xf4/0x15c [ 79.075471][ T5431] dump_stack+0x1c/0x5c [ 79.076127][ T5431] should_fail+0x3bc/0x514 [ 79.076865][ T5431] __should_failslab+0xbc/0x10c [ 79.077704][ T5431] should_failslab+0x10/0x28 [ 79.078454][ T5431] slab_pre_alloc_hook+0x64/0xe8 [ 79.079221][ T5431] kmem_cache_alloc_trace+0x98/0x3ec [ 79.079974][ T5431] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 79.080949][ T5431] __btrfs_unlink_inode+0x350/0xaec [ 79.081760][ T5431] btrfs_unlink+0x108/0x258 [ 79.082468][ T5431] vfs_unlink+0x2e0/0x4f4 [ 79.083168][ T5431] do_unlinkat+0x328/0x618 [ 79.083847][ T5431] __arm64_sys_unlinkat+0xe0/0xfc [ 79.084539][ T5431] invoke_syscall+0x98/0x2b0 [ 79.085211][ T5431] el0_svc_common+0x138/0x258 [ 79.085886][ T5431] do_el0_svc+0x58/0x13c [ 79.086497][ T5431] el0_svc+0x78/0x1d0 [ 79.087097][ T5431] el0t_64_sync_handler+0xcc/0xe4 [ 79.087840][ T5431] el0t_64_sync+0x1a0/0x1a4 [ 79.090513][ T5431] ------------[ cut here ]------------ [ 79.091498][ T5431] WARNING: CPU: 0 PID: 5431 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 79.093007][ T5431] Modules linked in: [ 79.093642][ T5431] CPU: 0 PID: 5431 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 79.094937][ T5431] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.096430][ T5431] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.097587][ T5431] pc : __btrfs_unlink_inode+0x904/0xaec [ 79.098462][ T5431] lr : __btrfs_unlink_inode+0x904/0xaec [ 79.099343][ T5431] sp : ffff800020f27a60 [ 79.099958][ T5431] x29: ffff800020f27b10 x28: ffff0000dba88000 x27: ffff0000e2f89010 [ 79.101240][ T5431] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d5794e70 [ 79.102586][ T5431] x23: ffff7000041e4f54 x22: dfff800000000000 x21: ffff0000e2d71d70 [ 79.103834][ T5431] x20: ffff0000debea688 x19: 1fffe0001bd7d4d1 x18: 0000000000000001 [ 79.105120][ T5431] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 79.106355][ T5431] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 79.107630][ T5431] x11: 0000000000000000 x10: 0000000000000000 x9 : 4d31850efbf8e200 [ 79.108887][ T5431] x8 : 4d31850efbf8e200 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.110188][ T5431] x5 : ffff800020f27378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 79.111449][ T5431] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.112717][ T5431] Call trace: [ 79.113208][ T5431] __btrfs_unlink_inode+0x904/0xaec [ 79.114021][ T5431] btrfs_unlink+0x108/0x258 [ 79.114721][ T5431] vfs_unlink+0x2e0/0x4f4 [ 79.115371][ T5431] do_unlinkat+0x328/0x618 [ 79.116031][ T5431] __arm64_sys_unlinkat+0xe0/0xfc [ 79.116743][ T5431] invoke_syscall+0x98/0x2b0 [ 79.117522][ T5431] el0_svc_common+0x138/0x258 [ 79.118253][ T5431] do_el0_svc+0x58/0x13c [ 79.118918][ T5431] el0_svc+0x78/0x1d0 [ 79.119495][ T5431] el0t_64_sync_handler+0xcc/0xe4 [ 79.120310][ T5431] el0t_64_sync+0x1a0/0x1a4 [ 79.120943][ T5431] irq event stamp: 80988 [ 79.121596][ T5431] hardirqs last enabled at (80987): [] __up_console_sem+0xb4/0xfc [ 79.123068][ T5431] hardirqs last disabled at (80988): [] el1_dbg+0x24/0x80 [ 79.124501][ T5431] softirqs last enabled at (80968): [] handle_softirqs+0xa40/0xbe4 [ 79.125948][ T5431] softirqs last disabled at (80951): [] __irq_exit_rcu+0x240/0x43c [ 79.127337][ T5431] ---[ end trace ceb9a902a589ad4c ]--- [ 79.131209][ T5431] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 79.132673][ T5431] BTRFS info (device loop0): forced readonly [ 79.361281][ T5453] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.26 (5453) [ 79.364419][ T5453] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.366509][ T5453] BTRFS info (device loop0): using free space tree [ 79.368694][ T5453] BTRFS info (device loop0): has skinny extents [ 79.376248][ T5453] BTRFS info (device loop0): enabling ssd optimizations [ 79.382701][ T5453] FAULT_INJECTION: forcing a failure. [ 79.382701][ T5453] name failslab, interval 1, probability 0, space 0, times 0 [ 79.384791][ T5453] CPU: 0 PID: 5453 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 79.386114][ T5453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.387661][ T5453] Call trace: [ 79.388128][ T5453] dump_backtrace+0x0/0x458 [ 79.388856][ T5453] show_stack+0x2c/0x3c [ 79.389518][ T5453] __dump_stack+0x30/0x40 [ 79.390159][ T5453] dump_stack_lvl+0xf4/0x15c [ 79.390872][ T5453] dump_stack+0x1c/0x5c [ 79.391545][ T5453] should_fail+0x3bc/0x514 [ 79.392312][ T5453] __should_failslab+0xbc/0x10c [ 79.393134][ T5453] should_failslab+0x10/0x28 [ 79.393862][ T5453] slab_pre_alloc_hook+0x64/0xe8 [ 79.394624][ T5453] kmem_cache_alloc_trace+0x98/0x3ec [ 79.395512][ T5453] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 79.396480][ T5453] __btrfs_unlink_inode+0x350/0xaec [ 79.397279][ T5453] btrfs_unlink+0x108/0x258 [ 79.397983][ T5453] vfs_unlink+0x2e0/0x4f4 [ 79.398675][ T5453] do_unlinkat+0x328/0x618 [ 79.399322][ T5453] __arm64_sys_unlinkat+0xe0/0xfc [ 79.400103][ T5453] invoke_syscall+0x98/0x2b0 [ 79.400778][ T5453] el0_svc_common+0x138/0x258 [ 79.401494][ T5453] do_el0_svc+0x58/0x13c [ 79.402155][ T5453] el0_svc+0x78/0x1d0 [ 79.402800][ T5453] el0t_64_sync_handler+0xcc/0xe4 [ 79.403622][ T5453] el0t_64_sync+0x1a0/0x1a4 [ 79.406171][ T5453] ------------[ cut here ]------------ [ 79.407160][ T5453] WARNING: CPU: 0 PID: 5453 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 79.408772][ T5453] Modules linked in: [ 79.409341][ T5453] CPU: 0 PID: 5453 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 79.410649][ T5453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.412197][ T5453] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.413424][ T5453] pc : __btrfs_unlink_inode+0x904/0xaec [ 79.414291][ T5453] lr : __btrfs_unlink_inode+0x904/0xaec [ 79.415173][ T5453] sp : ffff800021047a60 [ 79.415797][ T5453] x29: ffff800021047b10 x28: ffff0000cd34a000 x27: ffff0000e2de9810 [ 79.416995][ T5453] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d6b700b0 [ 79.418180][ T5453] x23: ffff700004208f54 x22: dfff800000000000 x21: ffff0000ed5a89d0 [ 79.419493][ T5453] x20: ffff0000debea738 x19: 1fffe0001bd7d4e7 x18: 0000000000000001 [ 79.420723][ T5453] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 79.421941][ T5453] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 79.423156][ T5453] x11: 0000000000000000 x10: 0000000000000000 x9 : 27ae9191a02bc600 [ 79.424389][ T5453] x8 : 27ae9191a02bc600 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.425649][ T5453] x5 : ffff800021047378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 79.426800][ T5453] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.428051][ T5453] Call trace: [ 79.428551][ T5453] __btrfs_unlink_inode+0x904/0xaec [ 79.429395][ T5453] btrfs_unlink+0x108/0x258 [ 79.430090][ T5453] vfs_unlink+0x2e0/0x4f4 [ 79.430759][ T5453] do_unlinkat+0x328/0x618 [ 79.431441][ T5453] __arm64_sys_unlinkat+0xe0/0xfc [ 79.432247][ T5453] invoke_syscall+0x98/0x2b0 [ 79.432974][ T5453] el0_svc_common+0x138/0x258 [ 79.433668][ T5453] do_el0_svc+0x58/0x13c [ 79.434283][ T5453] el0_svc+0x78/0x1d0 [ 79.434871][ T5453] el0t_64_sync_handler+0xcc/0xe4 [ 79.435699][ T5453] el0t_64_sync+0x1a0/0x1a4 [ 79.436390][ T5453] irq event stamp: 80530 [ 79.437082][ T5453] hardirqs last enabled at (80529): [] __up_console_sem+0xb4/0xfc [ 79.438588][ T5453] hardirqs last disabled at (80530): [] el1_dbg+0x24/0x80 [ 79.440005][ T5453] softirqs last enabled at (80510): [] handle_softirqs+0xa40/0xbe4 [ 79.441530][ T5453] softirqs last disabled at (80409): [] __irq_exit_rcu+0x240/0x43c [ 79.442999][ T5453] ---[ end trace ceb9a902a589ad4d ]--- [ 79.446135][ T5453] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 79.447698][ T5453] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:19 executed programs: 14 [ 79.603612][ T5475] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.27 (5475) [ 79.606742][ T5475] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.608239][ T5475] BTRFS info (device loop0): using free space tree [ 79.609264][ T5475] BTRFS info (device loop0): has skinny extents [ 79.616263][ T5475] BTRFS info (device loop0): enabling ssd optimizations [ 79.621475][ T5475] FAULT_INJECTION: forcing a failure. [ 79.621475][ T5475] name failslab, interval 1, probability 0, space 0, times 0 [ 79.623496][ T5475] CPU: 1 PID: 5475 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 79.624844][ T5475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.626424][ T5475] Call trace: [ 79.626914][ T5475] dump_backtrace+0x0/0x458 [ 79.627573][ T5475] show_stack+0x2c/0x3c [ 79.628204][ T5475] __dump_stack+0x30/0x40 [ 79.628885][ T5475] dump_stack_lvl+0xf4/0x15c [ 79.629561][ T5475] dump_stack+0x1c/0x5c [ 79.630160][ T5475] should_fail+0x3bc/0x514 [ 79.630834][ T5475] __should_failslab+0xbc/0x10c [ 79.631560][ T5475] should_failslab+0x10/0x28 [ 79.632201][ T5475] slab_pre_alloc_hook+0x64/0xe8 [ 79.632966][ T5475] kmem_cache_alloc_trace+0x98/0x3ec [ 79.633723][ T5475] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 79.634677][ T5475] __btrfs_unlink_inode+0x350/0xaec [ 79.635471][ T5475] btrfs_unlink+0x108/0x258 [ 79.636162][ T5475] vfs_unlink+0x2e0/0x4f4 [ 79.636859][ T5475] do_unlinkat+0x328/0x618 [ 79.637508][ T5475] __arm64_sys_unlinkat+0xe0/0xfc [ 79.638210][ T5475] invoke_syscall+0x98/0x2b0 [ 79.638887][ T5475] el0_svc_common+0x138/0x258 [ 79.639577][ T5475] do_el0_svc+0x58/0x13c [ 79.640197][ T5475] el0_svc+0x78/0x1d0 [ 79.640789][ T5475] el0t_64_sync_handler+0xcc/0xe4 [ 79.641531][ T5475] el0t_64_sync+0x1a0/0x1a4 [ 79.642748][ T5475] ------------[ cut here ]------------ [ 79.643685][ T5475] WARNING: CPU: 1 PID: 5475 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 79.645071][ T5475] Modules linked in: [ 79.645661][ T5475] CPU: 1 PID: 5475 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 79.646869][ T5475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.648255][ T5475] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.649400][ T5475] pc : __btrfs_unlink_inode+0x904/0xaec [ 79.650236][ T5475] lr : __btrfs_unlink_inode+0x904/0xaec [ 79.651048][ T5475] sp : ffff800020f27a60 [ 79.651621][ T5475] x29: ffff800020f27b10 x28: ffff0000c9402000 x27: ffff0000e2de9c10 [ 79.652844][ T5475] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d11be370 [ 79.654060][ T5475] x23: ffff7000041e4f54 x22: dfff800000000000 x21: ffff0000e2e693a0 [ 79.655233][ T5475] x20: ffff0000debe6b58 x19: 1fffe0001bd7cd6b x18: 0000000000000001 [ 79.656372][ T5475] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 79.657693][ T5475] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 79.658878][ T5475] x11: 0000000000000000 x10: 0000000000000000 x9 : ca2b1c6ccec99000 [ 79.660125][ T5475] x8 : ca2b1c6ccec99000 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.661310][ T5475] x5 : ffff800020f27378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 79.662516][ T5475] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.663736][ T5475] Call trace: [ 79.664282][ T5475] __btrfs_unlink_inode+0x904/0xaec [ 79.665092][ T5475] btrfs_unlink+0x108/0x258 [ 79.665728][ T5475] vfs_unlink+0x2e0/0x4f4 [ 79.666390][ T5475] do_unlinkat+0x328/0x618 [ 79.667242][ T5475] __arm64_sys_unlinkat+0xe0/0xfc [ 79.667992][ T5475] invoke_syscall+0x98/0x2b0 [ 79.668669][ T5475] el0_svc_common+0x138/0x258 [ 79.669327][ T5475] do_el0_svc+0x58/0x13c [ 79.670018][ T5475] el0_svc+0x78/0x1d0 [ 79.670602][ T5475] el0t_64_sync_handler+0xcc/0xe4 [ 79.671368][ T5475] el0t_64_sync+0x1a0/0x1a4 [ 79.672014][ T5475] irq event stamp: 80932 [ 79.672634][ T5475] hardirqs last enabled at (80931): [] __up_console_sem+0xb4/0xfc [ 79.674066][ T5475] hardirqs last disabled at (80932): [] el1_dbg+0x24/0x80 [ 79.675350][ T5475] softirqs last enabled at (80912): [] handle_softirqs+0xa40/0xbe4 [ 79.676776][ T5475] softirqs last disabled at (80895): [] __irq_exit_rcu+0x240/0x43c [ 79.678230][ T5475] ---[ end trace ceb9a902a589ad4e ]--- [ 79.680175][ T5475] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 79.681770][ T5475] BTRFS info (device loop0): forced readonly [ 79.858830][ T5497] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.28 (5497) [ 79.867195][ T5497] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.869070][ T5497] BTRFS info (device loop0): using free space tree [ 79.870022][ T5497] BTRFS info (device loop0): has skinny extents [ 79.878792][ T5497] BTRFS info (device loop0): enabling ssd optimizations [ 79.883392][ T5497] FAULT_INJECTION: forcing a failure. [ 79.883392][ T5497] name failslab, interval 1, probability 0, space 0, times 0 [ 79.885507][ T5497] CPU: 0 PID: 5497 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 79.886849][ T5497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.888395][ T5497] Call trace: [ 79.888846][ T5497] dump_backtrace+0x0/0x458 [ 79.889575][ T5497] show_stack+0x2c/0x3c [ 79.890222][ T5497] __dump_stack+0x30/0x40 [ 79.890932][ T5497] dump_stack_lvl+0xf4/0x15c [ 79.891631][ T5497] dump_stack+0x1c/0x5c [ 79.892215][ T5497] should_fail+0x3bc/0x514 [ 79.892917][ T5497] __should_failslab+0xbc/0x10c [ 79.893681][ T5497] should_failslab+0x10/0x28 [ 79.894409][ T5497] slab_pre_alloc_hook+0x64/0xe8 [ 79.895118][ T5497] kmem_cache_alloc_trace+0x98/0x3ec [ 79.895818][ T5497] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 79.896722][ T5497] __btrfs_unlink_inode+0x350/0xaec [ 79.897530][ T5497] btrfs_unlink+0x108/0x258 [ 79.898128][ T5497] vfs_unlink+0x2e0/0x4f4 [ 79.898795][ T5497] do_unlinkat+0x328/0x618 [ 79.899462][ T5497] __arm64_sys_unlinkat+0xe0/0xfc [ 79.900194][ T5497] invoke_syscall+0x98/0x2b0 [ 79.900872][ T5497] el0_svc_common+0x138/0x258 [ 79.901535][ T5497] do_el0_svc+0x58/0x13c [ 79.902161][ T5497] el0_svc+0x78/0x1d0 [ 79.902752][ T5497] el0t_64_sync_handler+0xcc/0xe4 [ 79.903498][ T5497] el0t_64_sync+0x1a0/0x1a4 [ 79.905858][ T5497] ------------[ cut here ]------------ [ 79.906795][ T5497] WARNING: CPU: 0 PID: 5497 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 79.908313][ T5497] Modules linked in: [ 79.908923][ T5497] CPU: 0 PID: 5497 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 79.910308][ T5497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.911893][ T5497] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.913136][ T5497] pc : __btrfs_unlink_inode+0x904/0xaec [ 79.913934][ T5497] lr : __btrfs_unlink_inode+0x904/0xaec [ 79.914776][ T5497] sp : ffff800020f27a60 [ 79.915420][ T5497] x29: ffff800020f27b10 x28: ffff0000dd506000 x27: ffff0000e2f89410 [ 79.916658][ T5497] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d10a26e0 [ 79.917851][ T5497] x23: ffff7000041e4f54 x22: dfff800000000000 x21: ffff0000e2d744b0 [ 79.919101][ T5497] x20: ffff0000debea898 x19: 1fffe0001bd7d513 x18: 0000000000000001 [ 79.920346][ T5497] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 79.921648][ T5497] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 79.922839][ T5497] x11: 0000000000000000 x10: 0000000000000000 x9 : d9680839aaf65f00 [ 79.924079][ T5497] x8 : d9680839aaf65f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.925301][ T5497] x5 : ffff800020f27378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 79.926570][ T5497] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.927865][ T5497] Call trace: [ 79.928369][ T5497] __btrfs_unlink_inode+0x904/0xaec [ 79.929166][ T5497] btrfs_unlink+0x108/0x258 [ 79.929863][ T5497] vfs_unlink+0x2e0/0x4f4 [ 79.930580][ T5497] do_unlinkat+0x328/0x618 [ 79.931261][ T5497] __arm64_sys_unlinkat+0xe0/0xfc [ 79.932060][ T5497] invoke_syscall+0x98/0x2b0 [ 79.932817][ T5497] el0_svc_common+0x138/0x258 [ 79.933526][ T5497] do_el0_svc+0x58/0x13c [ 79.934189][ T5497] el0_svc+0x78/0x1d0 [ 79.934803][ T5497] el0t_64_sync_handler+0xcc/0xe4 [ 79.935549][ T5497] el0t_64_sync+0x1a0/0x1a4 [ 79.936258][ T5497] irq event stamp: 80224 [ 79.936881][ T5497] hardirqs last enabled at (80223): [] __up_console_sem+0xb4/0xfc [ 79.938371][ T5497] hardirqs last disabled at (80224): [] el1_dbg+0x24/0x80 [ 79.939624][ T5497] softirqs last enabled at (80204): [] handle_softirqs+0xa40/0xbe4 [ 79.941122][ T5497] softirqs last disabled at (80179): [] __irq_exit_rcu+0x240/0x43c [ 79.942589][ T5497] ---[ end trace ceb9a902a589ad4f ]--- [ 79.945775][ T5497] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 79.947292][ T5497] BTRFS info (device loop0): forced readonly [ 80.101140][ T5519] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.29 (5519) [ 80.104381][ T5519] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.105695][ T5519] BTRFS info (device loop0): using free space tree [ 80.106743][ T5519] BTRFS info (device loop0): has skinny extents [ 80.115572][ T5519] BTRFS info (device loop0): enabling ssd optimizations [ 80.120240][ T5519] FAULT_INJECTION: forcing a failure. [ 80.120240][ T5519] name failslab, interval 1, probability 0, space 0, times 0 [ 80.122270][ T5519] CPU: 0 PID: 5519 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 80.123531][ T5519] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.125023][ T5519] Call trace: [ 80.125512][ T5519] dump_backtrace+0x0/0x458 [ 80.126219][ T5519] show_stack+0x2c/0x3c [ 80.126835][ T5519] __dump_stack+0x30/0x40 [ 80.127438][ T5519] dump_stack_lvl+0xf4/0x15c [ 80.128138][ T5519] dump_stack+0x1c/0x5c [ 80.128785][ T5519] should_fail+0x3bc/0x514 [ 80.129443][ T5519] __should_failslab+0xbc/0x10c [ 80.130200][ T5519] should_failslab+0x10/0x28 [ 80.130915][ T5519] slab_pre_alloc_hook+0x64/0xe8 [ 80.131663][ T5519] kmem_cache_alloc_trace+0x98/0x3ec [ 80.132474][ T5519] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 80.133438][ T5519] __btrfs_unlink_inode+0x350/0xaec [ 80.134214][ T5519] btrfs_unlink+0x108/0x258 [ 80.134898][ T5519] vfs_unlink+0x2e0/0x4f4 [ 80.135555][ T5519] do_unlinkat+0x328/0x618 [ 80.136266][ T5519] __arm64_sys_unlinkat+0xe0/0xfc [ 80.137028][ T5519] invoke_syscall+0x98/0x2b0 [ 80.137705][ T5519] el0_svc_common+0x138/0x258 [ 80.138440][ T5519] do_el0_svc+0x58/0x13c [ 80.139088][ T5519] el0_svc+0x78/0x1d0 [ 80.139686][ T5519] el0t_64_sync_handler+0xcc/0xe4 [ 80.140424][ T5519] el0t_64_sync+0x1a0/0x1a4 [ 80.143109][ T5519] ------------[ cut here ]------------ [ 80.144080][ T5519] WARNING: CPU: 0 PID: 5519 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 80.145550][ T5519] Modules linked in: [ 80.146210][ T5519] CPU: 0 PID: 5519 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 80.147548][ T5519] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.149063][ T5519] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.150242][ T5519] pc : __btrfs_unlink_inode+0x904/0xaec [ 80.151113][ T5519] lr : __btrfs_unlink_inode+0x904/0xaec [ 80.151926][ T5519] sp : ffff800020ce7a60 [ 80.152600][ T5519] x29: ffff800020ce7b10 x28: ffff0000dc8d4000 x27: ffff0000e2f89810 [ 80.153858][ T5519] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c9afaa50 [ 80.155151][ T5519] x23: ffff70000419cf54 x22: dfff800000000000 x21: ffff0000e2d76bf0 [ 80.156450][ T5519] x20: ffff0000debea9f8 x19: 1fffe0001bd7d53f x18: 0000000000000001 [ 80.157758][ T5519] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 80.158936][ T5519] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 80.160214][ T5519] x11: 0000000000000000 x10: 0000000000000000 x9 : 1188ff27cb554c00 [ 80.161451][ T5519] x8 : 1188ff27cb554c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.162694][ T5519] x5 : ffff800020ce7378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 80.163993][ T5519] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.165211][ T5519] Call trace: [ 80.165719][ T5519] __btrfs_unlink_inode+0x904/0xaec [ 80.166478][ T5519] btrfs_unlink+0x108/0x258 [ 80.167206][ T5519] vfs_unlink+0x2e0/0x4f4 [ 80.167888][ T5519] do_unlinkat+0x328/0x618 [ 80.168600][ T5519] __arm64_sys_unlinkat+0xe0/0xfc [ 80.169325][ T5519] invoke_syscall+0x98/0x2b0 [ 80.170052][ T5519] el0_svc_common+0x138/0x258 [ 80.170782][ T5519] do_el0_svc+0x58/0x13c [ 80.171462][ T5519] el0_svc+0x78/0x1d0 [ 80.172040][ T5519] el0t_64_sync_handler+0xcc/0xe4 [ 80.172864][ T5519] el0t_64_sync+0x1a0/0x1a4 [ 80.173513][ T5519] irq event stamp: 80056 [ 80.174185][ T5519] hardirqs last enabled at (80055): [] __up_console_sem+0xb4/0xfc [ 80.175580][ T5519] hardirqs last disabled at (80056): [] el1_dbg+0x24/0x80 [ 80.176981][ T5519] softirqs last enabled at (80036): [] handle_softirqs+0xa40/0xbe4 [ 80.178459][ T5519] softirqs last disabled at (80023): [] __irq_exit_rcu+0x240/0x43c [ 80.179913][ T5519] ---[ end trace ceb9a902a589ad50 ]--- [ 80.182710][ T5519] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 80.184218][ T5519] BTRFS info (device loop0): forced readonly [ 80.370845][ T5541] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.30 (5541) [ 80.410504][ T5541] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.412001][ T5541] BTRFS info (device loop0): using free space tree [ 80.413183][ T5541] BTRFS info (device loop0): has skinny extents [ 80.422888][ T5541] BTRFS info (device loop0): enabling ssd optimizations [ 80.428565][ T5541] FAULT_INJECTION: forcing a failure. [ 80.428565][ T5541] name failslab, interval 1, probability 0, space 0, times 0 [ 80.430522][ T5541] CPU: 0 PID: 5541 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 80.431830][ T5541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.433425][ T5541] Call trace: [ 80.433924][ T5541] dump_backtrace+0x0/0x458 [ 80.434609][ T5541] show_stack+0x2c/0x3c [ 80.435231][ T5541] __dump_stack+0x30/0x40 [ 80.435897][ T5541] dump_stack_lvl+0xf4/0x15c [ 80.436618][ T5541] dump_stack+0x1c/0x5c [ 80.437263][ T5541] should_fail+0x3bc/0x514 [ 80.437960][ T5541] __should_failslab+0xbc/0x10c [ 80.438734][ T5541] should_failslab+0x10/0x28 [ 80.439471][ T5541] slab_pre_alloc_hook+0x64/0xe8 [ 80.440239][ T5541] kmem_cache_alloc_trace+0x98/0x3ec [ 80.441039][ T5541] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 80.441952][ T5541] __btrfs_unlink_inode+0x350/0xaec [ 80.442745][ T5541] btrfs_unlink+0x108/0x258 [ 80.443425][ T5541] vfs_unlink+0x2e0/0x4f4 [ 80.444081][ T5541] do_unlinkat+0x328/0x618 [ 80.444748][ T5541] __arm64_sys_unlinkat+0xe0/0xfc [ 80.445494][ T5541] invoke_syscall+0x98/0x2b0 [ 80.446177][ T5541] el0_svc_common+0x138/0x258 [ 80.446883][ T5541] do_el0_svc+0x58/0x13c [ 80.447543][ T5541] el0_svc+0x78/0x1d0 [ 80.448140][ T5541] el0t_64_sync_handler+0xcc/0xe4 [ 80.448905][ T5541] el0t_64_sync+0x1a0/0x1a4 [ 80.451379][ T5541] ------------[ cut here ]------------ [ 80.452333][ T5541] WARNING: CPU: 0 PID: 5541 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 80.453689][ T5541] Modules linked in: [ 80.454254][ T5541] CPU: 0 PID: 5541 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 80.455466][ T5541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.456889][ T5541] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.458012][ T5541] pc : __btrfs_unlink_inode+0x904/0xaec [ 80.458843][ T5541] lr : __btrfs_unlink_inode+0x904/0xaec [ 80.459608][ T5541] sp : ffff8000212d7a60 [ 80.460182][ T5541] x29: ffff8000212d7b10 x28: ffff0000ca7a0000 x27: ffff0000e2dea010 [ 80.461346][ T5541] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cc72f790 [ 80.462526][ T5541] x23: ffff70000425af54 x22: dfff800000000000 x21: ffff0000e2e6b110 [ 80.463688][ T5541] x20: ffff0000debea268 x19: 1fffe0001bd7d44d x18: 0000000000000001 [ 80.464883][ T5541] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 80.466078][ T5541] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 80.467274][ T5541] x11: 0000000000000000 x10: 0000000000000000 x9 : b3dc85e47054c900 [ 80.468442][ T5541] x8 : b3dc85e47054c900 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.469648][ T5541] x5 : ffff8000212d7378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 80.470834][ T5541] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.471995][ T5541] Call trace: [ 80.472462][ T5541] __btrfs_unlink_inode+0x904/0xaec [ 80.473202][ T5541] btrfs_unlink+0x108/0x258 [ 80.473854][ T5541] vfs_unlink+0x2e0/0x4f4 [ 80.474458][ T5541] do_unlinkat+0x328/0x618 [ 80.475091][ T5541] __arm64_sys_unlinkat+0xe0/0xfc [ 80.475801][ T5541] invoke_syscall+0x98/0x2b0 [ 80.476469][ T5541] el0_svc_common+0x138/0x258 [ 80.477134][ T5541] do_el0_svc+0x58/0x13c [ 80.477633][ T4360] Bluetooth: hci0: command 0x040f tx timeout [ 80.477756][ T5541] el0_svc+0x78/0x1d0 [ 80.479266][ T5541] el0t_64_sync_handler+0xcc/0xe4 [ 80.479988][ T5541] el0t_64_sync+0x1a0/0x1a4 [ 80.480624][ T5541] irq event stamp: 81046 [ 80.481219][ T5541] hardirqs last enabled at (81045): [] __up_console_sem+0xb4/0xfc [ 80.482695][ T5541] hardirqs last disabled at (81046): [] el1_dbg+0x24/0x80 [ 80.484069][ T5541] softirqs last enabled at (81026): [] handle_softirqs+0xa40/0xbe4 [ 80.485541][ T5541] softirqs last disabled at (80919): [] __irq_exit_rcu+0x240/0x43c [ 80.486988][ T5541] ---[ end trace ceb9a902a589ad51 ]--- [ 80.490290][ T5541] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 80.491717][ T5541] BTRFS info (device loop0): forced readonly [ 80.639907][ T5563] set_capacity_and_notify: 6 callbacks suppressed [ 80.639916][ T5563] loop0: detected capacity change from 0 to 32768 [ 80.650805][ T5563] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.31 (5563) [ 80.654585][ T5563] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.656009][ T5563] BTRFS info (device loop0): using free space tree [ 80.657055][ T5563] BTRFS info (device loop0): has skinny extents [ 80.668023][ T5563] BTRFS info (device loop0): enabling ssd optimizations [ 80.672426][ T5563] FAULT_INJECTION: forcing a failure. [ 80.672426][ T5563] name failslab, interval 1, probability 0, space 0, times 0 [ 80.674506][ T5563] CPU: 1 PID: 5563 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 80.675806][ T5563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.677311][ T5563] Call trace: [ 80.677856][ T5563] dump_backtrace+0x0/0x458 [ 80.678584][ T5563] show_stack+0x2c/0x3c [ 80.679216][ T5563] __dump_stack+0x30/0x40 [ 80.679873][ T5563] dump_stack_lvl+0xf4/0x15c [ 80.680564][ T5563] dump_stack+0x1c/0x5c [ 80.681256][ T5563] should_fail+0x3bc/0x514 [ 80.681902][ T5563] __should_failslab+0xbc/0x10c [ 80.682654][ T5563] should_failslab+0x10/0x28 [ 80.683326][ T5563] slab_pre_alloc_hook+0x64/0xe8 [ 80.684045][ T5563] kmem_cache_alloc_trace+0x98/0x3ec [ 80.684861][ T5563] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 80.685801][ T5563] __btrfs_unlink_inode+0x350/0xaec [ 80.686578][ T5563] btrfs_unlink+0x108/0x258 [ 80.687209][ T5563] vfs_unlink+0x2e0/0x4f4 [ 80.687881][ T5563] do_unlinkat+0x328/0x618 [ 80.688507][ T5563] __arm64_sys_unlinkat+0xe0/0xfc [ 80.689290][ T5563] invoke_syscall+0x98/0x2b0 [ 80.689973][ T5563] el0_svc_common+0x138/0x258 [ 80.690674][ T5563] do_el0_svc+0x58/0x13c [ 80.691306][ T5563] el0_svc+0x78/0x1d0 [ 80.691909][ T5563] el0t_64_sync_handler+0xcc/0xe4 [ 80.692634][ T5563] el0t_64_sync+0x1a0/0x1a4 [ 80.693617][ T5563] ------------[ cut here ]------------ [ 80.694608][ T5563] WARNING: CPU: 1 PID: 5563 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 80.696160][ T5563] Modules linked in: [ 80.696803][ T5563] CPU: 1 PID: 5563 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 80.698107][ T5563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.699684][ T5563] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.700925][ T5563] pc : __btrfs_unlink_inode+0x904/0xaec [ 80.701708][ T5563] lr : __btrfs_unlink_inode+0x904/0xaec [ 80.702576][ T5563] sp : ffff800021497a60 [ 80.703181][ T5563] x29: ffff800021497b10 x28: ffff0000ec7b4000 x27: ffff0000e2dea410 [ 80.704436][ T5563] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ce1de2c0 [ 80.705707][ T5563] x23: ffff700004292f54 x22: dfff800000000000 x21: ffff0000e2e6d850 [ 80.706928][ T5563] x20: ffff0000debe6318 x19: 1fffe0001bd7cc63 x18: 0000000000000001 [ 80.708171][ T5563] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 80.709395][ T5563] x14: 0000000000000001 x13: 1ffff00004292e6c x12: 0000000000ff0100 [ 80.710564][ T5563] x11: 0000000000000000 x10: 0000000000000000 x9 : 7d10399e82f84f00 [ 80.711767][ T5563] x8 : 7d10399e82f84f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.713046][ T5563] x5 : ffff800021497378 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 80.714221][ T5563] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.715405][ T5563] Call trace: [ 80.715903][ T5563] __btrfs_unlink_inode+0x904/0xaec [ 80.716669][ T5563] btrfs_unlink+0x108/0x258 [ 80.717340][ T5563] vfs_unlink+0x2e0/0x4f4 [ 80.717889][ T5563] do_unlinkat+0x328/0x618 [ 80.718507][ T5563] __arm64_sys_unlinkat+0xe0/0xfc [ 80.719252][ T5563] invoke_syscall+0x98/0x2b0 [ 80.719896][ T5563] el0_svc_common+0x138/0x258 [ 80.720592][ T5563] do_el0_svc+0x58/0x13c [ 80.721193][ T5563] el0_svc+0x78/0x1d0 [ 80.721844][ T5563] el0t_64_sync_handler+0xcc/0xe4 [ 80.722616][ T5563] el0t_64_sync+0x1a0/0x1a4 [ 80.723336][ T5563] irq event stamp: 80988 [ 80.723989][ T5563] hardirqs last enabled at (80987): [] __up_console_sem+0xb4/0xfc [ 80.725330][ T5563] hardirqs last disabled at (80988): [] el1_dbg+0x24/0x80 [ 80.726676][ T5563] softirqs last enabled at (80968): [] handle_softirqs+0xa40/0xbe4 [ 80.728090][ T5563] softirqs last disabled at (80955): [] __irq_exit_rcu+0x240/0x43c [ 80.729561][ T5563] ---[ end trace ceb9a902a589ad52 ]--- [ 80.731571][ T5563] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 80.733160][ T5563] BTRFS info (device loop0): forced readonly [ 80.884623][ T5585] loop0: detected capacity change from 0 to 32768 [ 80.959059][ T5585] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.32 (5585) [ 80.962436][ T5585] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.965585][ T5585] BTRFS info (device loop0): using free space tree [ 80.966625][ T5585] BTRFS info (device loop0): has skinny extents [ 80.979739][ T5585] BTRFS info (device loop0): enabling ssd optimizations [ 80.991555][ T5585] FAULT_INJECTION: forcing a failure. [ 80.991555][ T5585] name failslab, interval 1, probability 0, space 0, times 0 [ 80.993488][ T5585] CPU: 1 PID: 5585 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 80.994782][ T5585] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.996202][ T5585] Call trace: [ 80.996665][ T5585] dump_backtrace+0x0/0x458 [ 80.997366][ T5585] show_stack+0x2c/0x3c [ 80.998016][ T5585] __dump_stack+0x30/0x40 [ 80.998681][ T5585] dump_stack_lvl+0xf4/0x15c [ 80.999359][ T5585] dump_stack+0x1c/0x5c [ 81.000035][ T5585] should_fail+0x3bc/0x514 [ 81.000648][ T5585] __should_failslab+0xbc/0x10c [ 81.001385][ T5585] should_failslab+0x10/0x28 [ 81.002125][ T5585] slab_pre_alloc_hook+0x64/0xe8 [ 81.002837][ T5585] kmem_cache_alloc_trace+0x98/0x3ec [ 81.003596][ T5585] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 81.004552][ T5585] __btrfs_unlink_inode+0x350/0xaec [ 81.005342][ T5585] btrfs_unlink+0x108/0x258 [ 81.005974][ T5585] vfs_unlink+0x2e0/0x4f4 [ 81.006625][ T5585] do_unlinkat+0x328/0x618 [ 81.007291][ T5585] __arm64_sys_unlinkat+0xe0/0xfc [ 81.008078][ T5585] invoke_syscall+0x98/0x2b0 [ 81.008734][ T5585] el0_svc_common+0x138/0x258 [ 81.009453][ T5585] do_el0_svc+0x58/0x13c [ 81.010073][ T5585] el0_svc+0x78/0x1d0 [ 81.010553][ T5585] el0t_64_sync_handler+0xcc/0xe4 [ 81.011242][ T5585] el0t_64_sync+0x1a0/0x1a4 [ 81.013761][ T5585] ------------[ cut here ]------------ [ 81.014736][ T5585] WARNING: CPU: 1 PID: 5585 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 81.016181][ T5585] Modules linked in: [ 81.016814][ T5585] CPU: 1 PID: 5585 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 81.018182][ T5585] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.019774][ T5585] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.020900][ T5585] pc : __btrfs_unlink_inode+0x904/0xaec [ 81.021722][ T5585] lr : __btrfs_unlink_inode+0x904/0xaec [ 81.022603][ T5585] sp : ffff8000216c7a60 [ 81.023177][ T5585] x29: ffff8000216c7b10 x28: ffff0000cc71a000 x27: ffff0000e2dea810 [ 81.024417][ T5585] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c9a11210 [ 81.025670][ T5585] x23: ffff7000042d8f54 x22: dfff800000000000 x21: ffff0000e2e6f5c0 [ 81.026818][ T5585] x20: ffff0000debe6d68 x19: 1fffe0001bd7cdad x18: 0000000000000001 [ 81.028041][ T5585] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 81.029187][ T5585] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 81.030433][ T5585] x11: 0000000000000000 x10: 0000000000000000 x9 : 056d691dd6b2b600 [ 81.031707][ T5585] x8 : 056d691dd6b2b600 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.032946][ T5585] x5 : ffff8000216c7378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 81.034117][ T5585] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.035277][ T5585] Call trace: [ 81.035789][ T5585] __btrfs_unlink_inode+0x904/0xaec [ 81.036582][ T5585] btrfs_unlink+0x108/0x258 [ 81.037310][ T5585] vfs_unlink+0x2e0/0x4f4 [ 81.037947][ T5585] do_unlinkat+0x328/0x618 [ 81.038663][ T5585] __arm64_sys_unlinkat+0xe0/0xfc [ 81.039362][ T5585] invoke_syscall+0x98/0x2b0 [ 81.040041][ T5585] el0_svc_common+0x138/0x258 [ 81.040739][ T5585] do_el0_svc+0x58/0x13c [ 81.041407][ T5585] el0_svc+0x78/0x1d0 [ 81.042045][ T5585] el0t_64_sync_handler+0xcc/0xe4 [ 81.042801][ T5585] el0t_64_sync+0x1a0/0x1a4 [ 81.043440][ T5585] irq event stamp: 80904 [ 81.044108][ T5585] hardirqs last enabled at (80903): [] __up_console_sem+0xb4/0xfc [ 81.045586][ T5585] hardirqs last disabled at (80904): [] el1_dbg+0x24/0x80 [ 81.046862][ T5585] softirqs last enabled at (80884): [] handle_softirqs+0xa40/0xbe4 [ 81.048270][ T5585] softirqs last disabled at (80659): [] __irq_exit_rcu+0x240/0x43c [ 81.049684][ T5585] ---[ end trace ceb9a902a589ad53 ]--- [ 81.051633][ T5585] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 81.053234][ T5585] BTRFS info (device loop0): forced readonly [ 81.199875][ T5607] loop0: detected capacity change from 0 to 32768 [ 81.207782][ T5607] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.33 (5607) [ 81.213034][ T5607] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.214421][ T5607] BTRFS info (device loop0): using free space tree [ 81.215423][ T5607] BTRFS info (device loop0): has skinny extents [ 81.237484][ T5607] BTRFS info (device loop0): enabling ssd optimizations [ 81.242364][ T5607] FAULT_INJECTION: forcing a failure. [ 81.242364][ T5607] name failslab, interval 1, probability 0, space 0, times 0 [ 81.244371][ T5607] CPU: 1 PID: 5607 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 81.245721][ T5607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.247172][ T5607] Call trace: [ 81.247654][ T5607] dump_backtrace+0x0/0x458 [ 81.248294][ T5607] show_stack+0x2c/0x3c [ 81.248926][ T5607] __dump_stack+0x30/0x40 [ 81.249634][ T5607] dump_stack_lvl+0xf4/0x15c [ 81.250321][ T5607] dump_stack+0x1c/0x5c [ 81.250967][ T5607] should_fail+0x3bc/0x514 [ 81.251747][ T5607] __should_failslab+0xbc/0x10c [ 81.252490][ T5607] should_failslab+0x10/0x28 [ 81.253223][ T5607] slab_pre_alloc_hook+0x64/0xe8 [ 81.253970][ T5607] kmem_cache_alloc_trace+0x98/0x3ec [ 81.254785][ T5607] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 81.255747][ T5607] __btrfs_unlink_inode+0x350/0xaec [ 81.256519][ T5607] btrfs_unlink+0x108/0x258 [ 81.257173][ T5607] vfs_unlink+0x2e0/0x4f4 [ 81.257869][ T5607] do_unlinkat+0x328/0x618 [ 81.258535][ T5607] __arm64_sys_unlinkat+0xe0/0xfc [ 81.259252][ T5607] invoke_syscall+0x98/0x2b0 [ 81.259933][ T5607] el0_svc_common+0x138/0x258 [ 81.260628][ T5607] do_el0_svc+0x58/0x13c [ 81.261272][ T5607] el0_svc+0x78/0x1d0 [ 81.261814][ T5607] el0t_64_sync_handler+0xcc/0xe4 [ 81.262639][ T5607] el0t_64_sync+0x1a0/0x1a4 [ 81.264264][ T5607] ------------[ cut here ]------------ [ 81.265229][ T5607] WARNING: CPU: 1 PID: 5607 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 81.266765][ T5607] Modules linked in: [ 81.267383][ T5607] CPU: 1 PID: 5607 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 81.268633][ T5607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.270088][ T5607] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.271376][ T5607] pc : __btrfs_unlink_inode+0x904/0xaec [ 81.272204][ T5607] lr : __btrfs_unlink_inode+0x904/0xaec [ 81.273108][ T5607] sp : ffff8000216c7a60 [ 81.273742][ T5607] x29: ffff8000216c7b10 x28: ffff0000da042000 x27: ffff0000e2deac10 [ 81.274992][ T5607] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d2224790 [ 81.276198][ T5607] x23: ffff7000042d8f54 x22: dfff800000000000 x21: ffff0000e2ec1d70 [ 81.277404][ T5607] x20: ffff0000debe6ec8 x19: 1fffe0001bd7cdd9 x18: 0000000000000001 [ 81.278594][ T5607] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 81.279807][ T5607] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 81.280941][ T5607] x11: 0000000000000000 x10: 0000000000000000 x9 : 0e48029d4c5a7800 [ 81.282066][ T5607] x8 : 0e48029d4c5a7800 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.283313][ T5607] x5 : ffff8000216c7378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 81.284487][ T5607] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.285660][ T5607] Call trace: [ 81.286186][ T5607] __btrfs_unlink_inode+0x904/0xaec [ 81.286967][ T5607] btrfs_unlink+0x108/0x258 [ 81.287583][ T5607] vfs_unlink+0x2e0/0x4f4 [ 81.288263][ T5607] do_unlinkat+0x328/0x618 [ 81.288915][ T5607] __arm64_sys_unlinkat+0xe0/0xfc [ 81.289674][ T5607] invoke_syscall+0x98/0x2b0 [ 81.290369][ T5607] el0_svc_common+0x138/0x258 [ 81.291079][ T5607] do_el0_svc+0x58/0x13c [ 81.291709][ T5607] el0_svc+0x78/0x1d0 [ 81.292273][ T5607] el0t_64_sync_handler+0xcc/0xe4 [ 81.293024][ T5607] el0t_64_sync+0x1a0/0x1a4 [ 81.293808][ T5607] irq event stamp: 81032 [ 81.294405][ T5607] hardirqs last enabled at (81031): [] __up_console_sem+0xb4/0xfc [ 81.295810][ T5607] hardirqs last disabled at (81032): [] el1_dbg+0x24/0x80 [ 81.297083][ T5607] softirqs last enabled at (81012): [] handle_softirqs+0xa40/0xbe4 [ 81.298531][ T5607] softirqs last disabled at (80901): [] __irq_exit_rcu+0x240/0x43c [ 81.299954][ T5607] ---[ end trace ceb9a902a589ad54 ]--- [ 81.303335][ T5607] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 81.304795][ T5607] BTRFS info (device loop0): forced readonly [ 81.508907][ T5629] loop0: detected capacity change from 0 to 32768 [ 81.570973][ T5629] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.34 (5629) [ 81.575826][ T5629] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.577274][ T5629] BTRFS info (device loop0): using free space tree [ 81.578367][ T5629] BTRFS info (device loop0): has skinny extents [ 81.585989][ T5629] BTRFS info (device loop0): enabling ssd optimizations [ 81.592045][ T5629] FAULT_INJECTION: forcing a failure. [ 81.592045][ T5629] name failslab, interval 1, probability 0, space 0, times 0 [ 81.593905][ T5629] CPU: 1 PID: 5629 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 81.595212][ T5629] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.596724][ T5629] Call trace: [ 81.597200][ T5629] dump_backtrace+0x0/0x458 [ 81.597866][ T5629] show_stack+0x2c/0x3c [ 81.598464][ T5629] __dump_stack+0x30/0x40 [ 81.599139][ T5629] dump_stack_lvl+0xf4/0x15c [ 81.599811][ T5629] dump_stack+0x1c/0x5c [ 81.600419][ T5629] should_fail+0x3bc/0x514 [ 81.601036][ T5629] __should_failslab+0xbc/0x10c [ 81.601750][ T5629] should_failslab+0x10/0x28 [ 81.602438][ T5629] slab_pre_alloc_hook+0x64/0xe8 [ 81.603165][ T5629] kmem_cache_alloc_trace+0x98/0x3ec [ 81.603961][ T5629] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 81.604876][ T5629] __btrfs_unlink_inode+0x350/0xaec [ 81.605635][ T5629] btrfs_unlink+0x108/0x258 [ 81.606284][ T5629] vfs_unlink+0x2e0/0x4f4 [ 81.606947][ T5629] do_unlinkat+0x328/0x618 [ 81.607610][ T5629] __arm64_sys_unlinkat+0xe0/0xfc [ 81.608308][ T5629] invoke_syscall+0x98/0x2b0 [ 81.609012][ T5629] el0_svc_common+0x138/0x258 [ 81.609746][ T5629] do_el0_svc+0x58/0x13c [ 81.610401][ T5629] el0_svc+0x78/0x1d0 [ 81.611015][ T5629] el0t_64_sync_handler+0xcc/0xe4 [ 81.611809][ T5629] el0t_64_sync+0x1a0/0x1a4 [ 81.613346][ T5629] ------------[ cut here ]------------ [ 81.614223][ T5629] WARNING: CPU: 1 PID: 5629 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 81.615658][ T5629] Modules linked in: [ 81.616180][ T5629] CPU: 1 PID: 5629 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 81.617471][ T5629] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.619011][ T5629] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.620211][ T5629] pc : __btrfs_unlink_inode+0x904/0xaec [ 81.621084][ T5629] lr : __btrfs_unlink_inode+0x904/0xaec [ 81.621956][ T5629] sp : ffff8000216c7a60 [ 81.622575][ T5629] x29: ffff8000216c7b10 x28: ffff0000c137e000 x27: ffff0000e2de8c10 [ 81.623819][ T5629] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d37c6580 [ 81.625010][ T5629] x23: ffff7000042d8f54 x22: dfff800000000000 x21: ffff0000e2ec44b0 [ 81.626256][ T5629] x20: ffff0000debe6738 x19: 1fffe0001bd7cce7 x18: 0000000000000001 [ 81.627519][ T5629] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 81.628752][ T5629] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 81.630012][ T5629] x11: 0000000000000000 x10: 0000000000000000 x9 : 6170db8b96ba2b00 [ 81.631205][ T5629] x8 : 6170db8b96ba2b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.632371][ T5629] x5 : ffff8000216c7378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 81.633589][ T5629] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.634852][ T5629] Call trace: [ 81.635359][ T5629] __btrfs_unlink_inode+0x904/0xaec [ 81.636098][ T5629] btrfs_unlink+0x108/0x258 [ 81.636838][ T5629] vfs_unlink+0x2e0/0x4f4 [ 81.637439][ T5629] do_unlinkat+0x328/0x618 [ 81.638086][ T5629] __arm64_sys_unlinkat+0xe0/0xfc [ 81.638841][ T5629] invoke_syscall+0x98/0x2b0 [ 81.639546][ T5629] el0_svc_common+0x138/0x258 [ 81.640225][ T5629] do_el0_svc+0x58/0x13c [ 81.640887][ T5629] el0_svc+0x78/0x1d0 [ 81.641510][ T5629] el0t_64_sync_handler+0xcc/0xe4 [ 81.642233][ T5629] el0t_64_sync+0x1a0/0x1a4 [ 81.642918][ T5629] irq event stamp: 80172 [ 81.643527][ T5629] hardirqs last enabled at (80171): [] __up_console_sem+0xb4/0xfc [ 81.644913][ T5629] hardirqs last disabled at (80172): [] el1_dbg+0x24/0x80 [ 81.646260][ T5629] softirqs last enabled at (80152): [] handle_softirqs+0xa40/0xbe4 [ 81.647744][ T5629] softirqs last disabled at (80109): [] __irq_exit_rcu+0x240/0x43c [ 81.649280][ T5629] ---[ end trace ceb9a902a589ad55 ]--- [ 81.651018][ T5629] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 81.652449][ T5629] BTRFS info (device loop0): forced readonly [ 81.791362][ T5651] loop0: detected capacity change from 0 to 32768 [ 81.794400][ T5651] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.35 (5651) [ 81.797357][ T5651] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.798815][ T5651] BTRFS info (device loop0): using free space tree [ 81.799816][ T5651] BTRFS info (device loop0): has skinny extents [ 81.811002][ T5651] BTRFS info (device loop0): enabling ssd optimizations [ 81.814909][ T5651] FAULT_INJECTION: forcing a failure. [ 81.814909][ T5651] name failslab, interval 1, probability 0, space 0, times 0 [ 81.816846][ T5651] CPU: 1 PID: 5651 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 81.818216][ T5651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.819721][ T5651] Call trace: [ 81.820219][ T5651] dump_backtrace+0x0/0x458 [ 81.820882][ T5651] show_stack+0x2c/0x3c [ 81.821525][ T5651] __dump_stack+0x30/0x40 [ 81.822195][ T5651] dump_stack_lvl+0xf4/0x15c [ 81.822901][ T5651] dump_stack+0x1c/0x5c [ 81.823475][ T5651] should_fail+0x3bc/0x514 [ 81.824134][ T5651] __should_failslab+0xbc/0x10c [ 81.824816][ T5651] should_failslab+0x10/0x28 [ 81.825541][ T5651] slab_pre_alloc_hook+0x64/0xe8 [ 81.826255][ T5651] kmem_cache_alloc_trace+0x98/0x3ec [ 81.827026][ T5651] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 81.827904][ T5651] __btrfs_unlink_inode+0x350/0xaec [ 81.828728][ T5651] btrfs_unlink+0x108/0x258 [ 81.829384][ T5651] vfs_unlink+0x2e0/0x4f4 [ 81.830009][ T5651] do_unlinkat+0x328/0x618 [ 81.830660][ T5651] __arm64_sys_unlinkat+0xe0/0xfc [ 81.831389][ T5651] invoke_syscall+0x98/0x2b0 [ 81.832099][ T5651] el0_svc_common+0x138/0x258 [ 81.832829][ T5651] do_el0_svc+0x58/0x13c [ 81.833468][ T5651] el0_svc+0x78/0x1d0 [ 81.834106][ T5651] el0t_64_sync_handler+0xcc/0xe4 [ 81.834841][ T5651] el0t_64_sync+0x1a0/0x1a4 [ 81.836122][ T5651] ------------[ cut here ]------------ [ 81.837105][ T5651] WARNING: CPU: 1 PID: 5651 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 81.838591][ T5651] Modules linked in: [ 81.839189][ T5651] CPU: 1 PID: 5651 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 81.840546][ T5651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.841994][ T5651] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.843096][ T5651] pc : __btrfs_unlink_inode+0x904/0xaec [ 81.843906][ T5651] lr : __btrfs_unlink_inode+0x904/0xaec [ 81.844699][ T5651] sp : ffff8000219f7a60 [ 81.845264][ T5651] x29: ffff8000219f7b10 x28: ffff0000c8246000 x27: ffff0000e2deb010 [ 81.846504][ T5651] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d688c630 [ 81.847667][ T5651] x23: ffff70000433ef54 x22: dfff800000000000 x21: ffff0000e2ec6bf0 [ 81.848815][ T5651] x20: ffff0000debe65d8 x19: 1fffe0001bd7ccbb x18: 0000000000000001 [ 81.849932][ T5651] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 81.851079][ T5651] x14: 0000000000000001 x13: 1ffff0000433ee6c x12: 0000000000ff0100 [ 81.852195][ T5651] x11: 0000000000000000 x10: 0000000000000000 x9 : 8d55aa57d3c99e00 [ 81.853341][ T5651] x8 : 8d55aa57d3c99e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.854509][ T5651] x5 : ffff8000219f7378 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 81.855706][ T5651] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.856909][ T5651] Call trace: [ 81.857356][ T5651] __btrfs_unlink_inode+0x904/0xaec [ 81.858137][ T5651] btrfs_unlink+0x108/0x258 [ 81.858897][ T5651] vfs_unlink+0x2e0/0x4f4 [ 81.859573][ T5651] do_unlinkat+0x328/0x618 [ 81.860238][ T5651] __arm64_sys_unlinkat+0xe0/0xfc [ 81.860974][ T5651] invoke_syscall+0x98/0x2b0 [ 81.861642][ T5651] el0_svc_common+0x138/0x258 [ 81.862355][ T5651] do_el0_svc+0x58/0x13c [ 81.862999][ T5651] el0_svc+0x78/0x1d0 [ 81.863570][ T5651] el0t_64_sync_handler+0xcc/0xe4 [ 81.864307][ T5651] el0t_64_sync+0x1a0/0x1a4 [ 81.865011][ T5651] irq event stamp: 80730 [ 81.865641][ T5651] hardirqs last enabled at (80729): [] __up_console_sem+0xb4/0xfc [ 81.867065][ T5651] hardirqs last disabled at (80730): [] el1_dbg+0x24/0x80 [ 81.868352][ T5651] softirqs last enabled at (80710): [] handle_softirqs+0xa40/0xbe4 [ 81.869826][ T5651] softirqs last disabled at (80549): [] __irq_exit_rcu+0x240/0x43c [ 81.871180][ T5651] ---[ end trace ceb9a902a589ad56 ]--- [ 81.872614][ T5651] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 81.874166][ T5651] BTRFS info (device loop0): forced readonly [ 82.011947][ T5673] loop0: detected capacity change from 0 to 32768 [ 82.089135][ T5673] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.36 (5673) [ 82.149177][ T5673] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.150603][ T5673] BTRFS info (device loop0): using free space tree [ 82.151659][ T5673] BTRFS info (device loop0): has skinny extents [ 82.161098][ T5673] BTRFS info (device loop0): enabling ssd optimizations [ 82.165475][ T5673] FAULT_INJECTION: forcing a failure. [ 82.165475][ T5673] name failslab, interval 1, probability 0, space 0, times 0 [ 82.167628][ T5673] CPU: 0 PID: 5673 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 82.168952][ T5673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.170548][ T5673] Call trace: [ 82.170971][ T5673] dump_backtrace+0x0/0x458 [ 82.171651][ T5673] show_stack+0x2c/0x3c [ 82.172304][ T5673] __dump_stack+0x30/0x40 [ 82.172946][ T5673] dump_stack_lvl+0xf4/0x15c [ 82.173636][ T5673] dump_stack+0x1c/0x5c [ 82.174309][ T5673] should_fail+0x3bc/0x514 [ 82.175010][ T5673] __should_failslab+0xbc/0x10c [ 82.175769][ T5673] should_failslab+0x10/0x28 [ 82.176478][ T5673] slab_pre_alloc_hook+0x64/0xe8 [ 82.177210][ T5673] kmem_cache_alloc_trace+0x98/0x3ec [ 82.178065][ T5673] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 82.179009][ T5673] __btrfs_unlink_inode+0x350/0xaec [ 82.179847][ T5673] btrfs_unlink+0x108/0x258 [ 82.180539][ T5673] vfs_unlink+0x2e0/0x4f4 [ 82.181244][ T5673] do_unlinkat+0x328/0x618 [ 82.181928][ T5673] __arm64_sys_unlinkat+0xe0/0xfc [ 82.182706][ T5673] invoke_syscall+0x98/0x2b0 [ 82.183389][ T5673] el0_svc_common+0x138/0x258 [ 82.184100][ T5673] do_el0_svc+0x58/0x13c [ 82.184733][ T5673] el0_svc+0x78/0x1d0 [ 82.185319][ T5673] el0t_64_sync_handler+0xcc/0xe4 [ 82.186090][ T5673] el0t_64_sync+0x1a0/0x1a4 [ 82.187086][ T5673] ------------[ cut here ]------------ [ 82.188104][ T5673] WARNING: CPU: 0 PID: 5673 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 82.189598][ T5673] Modules linked in: [ 82.190189][ T5673] CPU: 0 PID: 5673 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 82.191469][ T5673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.193001][ T5673] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.194122][ T5673] pc : __btrfs_unlink_inode+0x904/0xaec [ 82.194916][ T5673] lr : __btrfs_unlink_inode+0x904/0xaec [ 82.195838][ T5673] sp : ffff800021b37a60 [ 82.196479][ T5673] x29: ffff800021b37b10 x28: ffff0000e7440000 x27: ffff0000e2f88c10 [ 82.197706][ T5673] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d1ee3210 [ 82.198902][ T5673] x23: ffff700004366f54 x22: dfff800000000000 x21: ffff0000ed5aebf0 [ 82.200197][ T5673] x20: ffff0000debea478 x19: 1fffe0001bd7d48f x18: 0000000000000001 [ 82.201381][ T5673] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 82.202627][ T5673] x14: 0000000000000001 x13: 1ffff00004366e6c x12: 0000000000ff0100 [ 82.203929][ T5673] x11: 0000000000000000 x10: 0000000000000000 x9 : 257504e4c92e1500 [ 82.205192][ T5673] x8 : 257504e4c92e1500 x7 : 0000000000000001 x6 : 0000000000000001 [ 82.206384][ T5673] x5 : ffff800021b37378 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 82.207607][ T5673] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 82.208837][ T5673] Call trace: [ 82.209349][ T5673] __btrfs_unlink_inode+0x904/0xaec [ 82.210171][ T5673] btrfs_unlink+0x108/0x258 [ 82.210846][ T5673] vfs_unlink+0x2e0/0x4f4 [ 82.211527][ T5673] do_unlinkat+0x328/0x618 [ 82.212220][ T5673] __arm64_sys_unlinkat+0xe0/0xfc [ 82.212962][ T5673] invoke_syscall+0x98/0x2b0 [ 82.213614][ T5673] el0_svc_common+0x138/0x258 [ 82.214327][ T5673] do_el0_svc+0x58/0x13c [ 82.214943][ T5673] el0_svc+0x78/0x1d0 [ 82.215545][ T5673] el0t_64_sync_handler+0xcc/0xe4 [ 82.216279][ T5673] el0t_64_sync+0x1a0/0x1a4 [ 82.216944][ T5673] irq event stamp: 80306 [ 82.217613][ T5673] hardirqs last enabled at (80305): [] __up_console_sem+0xb4/0xfc [ 82.219079][ T5673] hardirqs last disabled at (80306): [] el1_dbg+0x24/0x80 [ 82.220371][ T5673] softirqs last enabled at (80296): [] handle_softirqs+0xa40/0xbe4 [ 82.221867][ T5673] softirqs last disabled at (80287): [] __irq_exit_rcu+0x240/0x43c [ 82.223339][ T5673] ---[ end trace ceb9a902a589ad57 ]--- [ 82.224504][ T5673] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 82.225857][ T5673] BTRFS info (device loop0): forced readonly [ 82.383227][ T5695] loop0: detected capacity change from 0 to 32768 [ 82.388404][ T5695] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.37 (5695) [ 82.391912][ T5695] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.393311][ T5695] BTRFS info (device loop0): using free space tree [ 82.394311][ T5695] BTRFS info (device loop0): has skinny extents [ 82.409067][ T5695] BTRFS info (device loop0): enabling ssd optimizations [ 82.414538][ T5695] FAULT_INJECTION: forcing a failure. [ 82.414538][ T5695] name failslab, interval 1, probability 0, space 0, times 0 [ 82.416477][ T5695] CPU: 1 PID: 5695 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 82.417799][ T5695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.419407][ T5695] Call trace: [ 82.419916][ T5695] dump_backtrace+0x0/0x458 [ 82.420599][ T5695] show_stack+0x2c/0x3c [ 82.421221][ T5695] __dump_stack+0x30/0x40 [ 82.421849][ T5695] dump_stack_lvl+0xf4/0x15c [ 82.422543][ T5695] dump_stack+0x1c/0x5c [ 82.423164][ T5695] should_fail+0x3bc/0x514 [ 82.423828][ T5695] __should_failslab+0xbc/0x10c [ 82.424535][ T5695] should_failslab+0x10/0x28 [ 82.425169][ T5695] slab_pre_alloc_hook+0x64/0xe8 [ 82.425902][ T5695] kmem_cache_alloc_trace+0x98/0x3ec [ 82.426681][ T5695] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 82.427590][ T5695] __btrfs_unlink_inode+0x350/0xaec [ 82.428383][ T5695] btrfs_unlink+0x108/0x258 [ 82.429104][ T5695] vfs_unlink+0x2e0/0x4f4 [ 82.429743][ T5695] do_unlinkat+0x328/0x618 [ 82.430386][ T5695] __arm64_sys_unlinkat+0xe0/0xfc [ 82.431174][ T5695] invoke_syscall+0x98/0x2b0 [ 82.431871][ T5695] el0_svc_common+0x138/0x258 [ 82.432625][ T5695] do_el0_svc+0x58/0x13c [ 82.433279][ T5695] el0_svc+0x78/0x1d0 [ 82.433892][ T5695] el0t_64_sync_handler+0xcc/0xe4 [ 82.434608][ T5695] el0t_64_sync+0x1a0/0x1a4 [ 82.439424][ T5695] ------------[ cut here ]------------ [ 82.440461][ T5695] WARNING: CPU: 0 PID: 5695 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 82.441952][ T5695] Modules linked in: [ 82.442514][ T5695] CPU: 0 PID: 5695 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 82.443876][ T5695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.445391][ T5695] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.446519][ T5695] pc : __btrfs_unlink_inode+0x904/0xaec [ 82.447322][ T5695] lr : __btrfs_unlink_inode+0x904/0xaec [ 82.448196][ T5695] sp : ffff800021b37a60 [ 82.448801][ T5695] x29: ffff800021b37b10 x28: ffff0000c8286000 x27: ffff0000e2de9410 [ 82.450082][ T5695] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000efa1b210 [ 82.451305][ T5695] x23: ffff700004366f54 x22: dfff800000000000 x21: ffff0000ed5193a0 [ 82.452566][ T5695] x20: ffff0000debe6898 x19: 1fffe0001bd7cd13 x18: 0000000000000001 [ 82.453830][ T5695] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 82.455027][ T5695] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 82.456201][ T5695] x11: 0000000000000000 x10: 0000000000000000 x9 : 70441b7294867200 [ 82.457445][ T5695] x8 : 70441b7294867200 x7 : 0000000000000001 x6 : 0000000000000001 [ 82.458697][ T5695] x5 : ffff800021b37378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 82.459937][ T5695] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 82.461135][ T5695] Call trace: [ 82.461598][ T5695] __btrfs_unlink_inode+0x904/0xaec [ 82.462280][ T5695] btrfs_unlink+0x108/0x258 [ 82.462932][ T5695] vfs_unlink+0x2e0/0x4f4 [ 82.463561][ T5695] do_unlinkat+0x328/0x618 [ 82.464253][ T5695] __arm64_sys_unlinkat+0xe0/0xfc [ 82.465017][ T5695] invoke_syscall+0x98/0x2b0 [ 82.465653][ T5695] el0_svc_common+0x138/0x258 [ 82.466310][ T5695] do_el0_svc+0x58/0x13c [ 82.466941][ T5695] el0_svc+0x78/0x1d0 [ 82.467555][ T5695] el0t_64_sync_handler+0xcc/0xe4 [ 82.468295][ T5695] el0t_64_sync+0x1a0/0x1a4 [ 82.468957][ T5695] irq event stamp: 80810 [ 82.469575][ T5695] hardirqs last enabled at (80809): [] __up_console_sem+0xb4/0xfc [ 82.470907][ T5695] hardirqs last disabled at (80810): [] el1_dbg+0x24/0x80 [ 82.472172][ T5695] softirqs last enabled at (80788): [] handle_softirqs+0xa40/0xbe4 [ 82.473616][ T5695] softirqs last disabled at (80687): [] __irq_exit_rcu+0x240/0x43c [ 82.475012][ T5695] ---[ end trace ceb9a902a589ad58 ]--- [ 82.477758][ T5695] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 82.479300][ T5695] BTRFS info (device loop0): forced readonly [ 82.567761][ T4352] Bluetooth: hci0: command 0x0419 tx timeout [ 82.628615][ T5717] loop0: detected capacity change from 0 to 32768 [ 82.679351][ T5717] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.38 (5717) [ 82.683179][ T5717] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.684462][ T5717] BTRFS info (device loop0): using free space tree [ 82.685380][ T5717] BTRFS info (device loop0): has skinny extents [ 82.706617][ T5717] BTRFS info (device loop0): enabling ssd optimizations [ 82.710856][ T5717] FAULT_INJECTION: forcing a failure. [ 82.710856][ T5717] name failslab, interval 1, probability 0, space 0, times 0 [ 82.712727][ T5717] CPU: 0 PID: 5717 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 82.713986][ T5717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.715692][ T5717] Call trace: [ 82.716159][ T5717] dump_backtrace+0x0/0x458 [ 82.716882][ T5717] show_stack+0x2c/0x3c [ 82.717511][ T5717] __dump_stack+0x30/0x40 [ 82.718190][ T5717] dump_stack_lvl+0xf4/0x15c [ 82.718899][ T5717] dump_stack+0x1c/0x5c [ 82.719557][ T5717] should_fail+0x3bc/0x514 [ 82.720248][ T5717] __should_failslab+0xbc/0x10c [ 82.720968][ T5717] should_failslab+0x10/0x28 [ 82.721619][ T5717] slab_pre_alloc_hook+0x64/0xe8 [ 82.722424][ T5717] kmem_cache_alloc_trace+0x98/0x3ec [ 82.723200][ T5717] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 82.724112][ T5717] __btrfs_unlink_inode+0x350/0xaec [ 82.724965][ T5717] btrfs_unlink+0x108/0x258 [ 82.725600][ T5717] vfs_unlink+0x2e0/0x4f4 [ 82.726285][ T5717] do_unlinkat+0x328/0x618 [ 82.726918][ T5717] __arm64_sys_unlinkat+0xe0/0xfc [ 82.727633][ T5717] invoke_syscall+0x98/0x2b0 [ 82.728391][ T5717] el0_svc_common+0x138/0x258 [ 82.729106][ T5717] do_el0_svc+0x58/0x13c [ 82.729735][ T5717] el0_svc+0x78/0x1d0 [ 82.730355][ T5717] el0t_64_sync_handler+0xcc/0xe4 [ 82.731098][ T5717] el0t_64_sync+0x1a0/0x1a4 [ 82.732747][ T5717] ------------[ cut here ]------------ [ 82.733676][ T5717] WARNING: CPU: 0 PID: 5717 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 82.735250][ T5717] Modules linked in: [ 82.735848][ T5717] CPU: 0 PID: 5717 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 82.737125][ T5717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.738653][ T5717] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.739886][ T5717] pc : __btrfs_unlink_inode+0x904/0xaec [ 82.740754][ T5717] lr : __btrfs_unlink_inode+0x904/0xaec [ 82.741564][ T5717] sp : ffff800021c77a60 [ 82.742205][ T5717] x29: ffff800021c77b10 x28: ffff0000cd6be000 x27: ffff0000e2f89010 [ 82.743367][ T5717] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d57949a0 [ 82.744651][ T5717] x23: ffff70000438ef54 x22: dfff800000000000 x21: ffff0000ed5ac4b0 [ 82.745932][ T5717] x20: ffff0000debea5d8 x19: 1fffe0001bd7d4bb x18: 0000000000000001 [ 82.747197][ T5717] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 82.748375][ T5717] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 82.749597][ T5717] x11: 0000000000000000 x10: 0000000000000000 x9 : dadcef93d4dfb800 [ 82.750785][ T5717] x8 : dadcef93d4dfb800 x7 : 0000000000000001 x6 : 0000000000000001 [ 82.751992][ T5717] x5 : ffff800021c77378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 82.753167][ T5717] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 82.754380][ T5717] Call trace: [ 82.754869][ T5717] __btrfs_unlink_inode+0x904/0xaec [ 82.755649][ T5717] btrfs_unlink+0x108/0x258 [ 82.756376][ T5717] vfs_unlink+0x2e0/0x4f4 [ 82.757008][ T5717] do_unlinkat+0x328/0x618 [ 82.757674][ T5717] __arm64_sys_unlinkat+0xe0/0xfc [ 82.758422][ T5717] invoke_syscall+0x98/0x2b0 [ 82.759096][ T5717] el0_svc_common+0x138/0x258 [ 82.759813][ T5717] do_el0_svc+0x58/0x13c [ 82.760471][ T5717] el0_svc+0x78/0x1d0 [ 82.761095][ T5717] el0t_64_sync_handler+0xcc/0xe4 [ 82.761860][ T5717] el0t_64_sync+0x1a0/0x1a4 [ 82.762535][ T5717] irq event stamp: 82350 [ 82.763202][ T5717] hardirqs last enabled at (82349): [] __up_console_sem+0xb4/0xfc [ 82.764556][ T5717] hardirqs last disabled at (82350): [] el1_dbg+0x24/0x80 [ 82.765817][ T5717] softirqs last enabled at (82330): [] handle_softirqs+0xa40/0xbe4 [ 82.767277][ T5717] softirqs last disabled at (82285): [] __irq_exit_rcu+0x240/0x43c [ 82.768786][ T5717] ---[ end trace ceb9a902a589ad59 ]--- [ 82.770277][ T5717] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 82.771698][ T5717] BTRFS info (device loop0): forced readonly [ 82.918465][ T5739] loop0: detected capacity change from 0 to 32768 [ 82.927222][ T5739] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.39 (5739) [ 82.939741][ T5739] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.941481][ T5739] BTRFS info (device loop0): using free space tree [ 82.942456][ T5739] BTRFS info (device loop0): has skinny extents [ 82.954029][ T5739] BTRFS info (device loop0): enabling ssd optimizations [ 82.959493][ T5739] FAULT_INJECTION: forcing a failure. [ 82.959493][ T5739] name failslab, interval 1, probability 0, space 0, times 0 [ 82.961498][ T5739] CPU: 0 PID: 5739 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 82.962774][ T5739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.964295][ T5739] Call trace: [ 82.964756][ T5739] dump_backtrace+0x0/0x458 [ 82.965482][ T5739] show_stack+0x2c/0x3c [ 82.966121][ T5739] __dump_stack+0x30/0x40 [ 82.966737][ T5739] dump_stack_lvl+0xf4/0x15c [ 82.967431][ T5739] dump_stack+0x1c/0x5c [ 82.968077][ T5739] should_fail+0x3bc/0x514 [ 82.968818][ T5739] __should_failslab+0xbc/0x10c [ 82.969506][ T5739] should_failslab+0x10/0x28 [ 82.970147][ T5739] slab_pre_alloc_hook+0x64/0xe8 [ 82.970909][ T5739] kmem_cache_alloc_trace+0x98/0x3ec [ 82.971761][ T5739] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 82.972716][ T5739] __btrfs_unlink_inode+0x350/0xaec [ 82.973568][ T5739] btrfs_unlink+0x108/0x258 [ 82.974263][ T5739] vfs_unlink+0x2e0/0x4f4 [ 82.975007][ T5739] do_unlinkat+0x328/0x618 [ 82.975711][ T5739] __arm64_sys_unlinkat+0xe0/0xfc [ 82.976494][ T5739] invoke_syscall+0x98/0x2b0 [ 82.977156][ T5739] el0_svc_common+0x138/0x258 [ 82.977922][ T5739] do_el0_svc+0x58/0x13c [ 82.978519][ T5739] el0_svc+0x78/0x1d0 [ 82.979102][ T5739] el0t_64_sync_handler+0xcc/0xe4 [ 82.979880][ T5739] el0t_64_sync+0x1a0/0x1a4 [ 82.981911][ T5739] ------------[ cut here ]------------ [ 82.982819][ T5739] WARNING: CPU: 0 PID: 5739 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 82.984258][ T5739] Modules linked in: [ 82.984817][ T5739] CPU: 0 PID: 5739 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 82.986098][ T5739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.987537][ T5739] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.988633][ T5739] pc : __btrfs_unlink_inode+0x904/0xaec [ 82.989574][ T5739] lr : __btrfs_unlink_inode+0x904/0xaec [ 82.990385][ T5739] sp : ffff800021dd7a60 [ 82.991033][ T5739] x29: ffff800021dd7b10 x28: ffff0000d0272000 x27: ffff0000e2f88410 [ 82.992323][ T5739] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d5d44dc0 [ 82.993560][ T5739] x23: ffff7000043baf54 x22: dfff800000000000 x21: ffff0000ed5a89d0 [ 82.994790][ T5739] x20: ffff0000debeaaa8 x19: 1fffe0001bd7d555 x18: 0000000000000001 [ 82.996070][ T5739] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 82.997250][ T5739] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 82.998564][ T5739] x11: 0000000000000000 x10: 0000000000000000 x9 : 28f95461c424a400 [ 82.999805][ T5739] x8 : 28f95461c424a400 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.001055][ T5739] x5 : ffff800021dd7378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 83.002285][ T5739] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.003507][ T5739] Call trace: [ 83.003970][ T5739] __btrfs_unlink_inode+0x904/0xaec [ 83.004746][ T5739] btrfs_unlink+0x108/0x258 [ 83.005455][ T5739] vfs_unlink+0x2e0/0x4f4 [ 83.006129][ T5739] do_unlinkat+0x328/0x618 [ 83.006806][ T5739] __arm64_sys_unlinkat+0xe0/0xfc [ 83.007532][ T5739] invoke_syscall+0x98/0x2b0 [ 83.008181][ T5739] el0_svc_common+0x138/0x258 [ 83.008870][ T5739] do_el0_svc+0x58/0x13c [ 83.009490][ T5739] el0_svc+0x78/0x1d0 [ 83.010062][ T5739] el0t_64_sync_handler+0xcc/0xe4 [ 83.010839][ T5739] el0t_64_sync+0x1a0/0x1a4 [ 83.011508][ T5739] irq event stamp: 81140 [ 83.012173][ T5739] hardirqs last enabled at (81139): [] __up_console_sem+0xb4/0xfc [ 83.013681][ T5739] hardirqs last disabled at (81140): [] el1_dbg+0x24/0x80 [ 83.015073][ T5739] softirqs last enabled at (81120): [] handle_softirqs+0xa40/0xbe4 [ 83.016488][ T5739] softirqs last disabled at (81101): [] __irq_exit_rcu+0x240/0x43c [ 83.017884][ T5739] ---[ end trace ceb9a902a589ad5a ]--- [ 83.020124][ T5739] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 83.021960][ T5739] BTRFS info (device loop0): forced readonly [ 83.162517][ T5761] loop0: detected capacity change from 0 to 32768 [ 83.228964][ T5761] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.40 (5761) [ 83.232146][ T5761] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.233592][ T5761] BTRFS info (device loop0): using free space tree [ 83.234758][ T5761] BTRFS info (device loop0): has skinny extents [ 83.245139][ T5761] BTRFS info (device loop0): enabling ssd optimizations [ 83.249531][ T5761] FAULT_INJECTION: forcing a failure. [ 83.249531][ T5761] name failslab, interval 1, probability 0, space 0, times 0 [ 83.251494][ T5761] CPU: 0 PID: 5761 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 83.252756][ T5761] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.254324][ T5761] Call trace: [ 83.254796][ T5761] dump_backtrace+0x0/0x458 [ 83.255499][ T5761] show_stack+0x2c/0x3c [ 83.256100][ T5761] __dump_stack+0x30/0x40 [ 83.256760][ T5761] dump_stack_lvl+0xf4/0x15c [ 83.257374][ T5761] dump_stack+0x1c/0x5c [ 83.258001][ T5761] should_fail+0x3bc/0x514 [ 83.258687][ T5761] __should_failslab+0xbc/0x10c [ 83.259446][ T5761] should_failslab+0x10/0x28 [ 83.260113][ T5761] slab_pre_alloc_hook+0x64/0xe8 [ 83.260898][ T5761] kmem_cache_alloc_trace+0x98/0x3ec [ 83.261721][ T5761] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 83.262606][ T5761] __btrfs_unlink_inode+0x350/0xaec [ 83.263375][ T5761] btrfs_unlink+0x108/0x258 [ 83.264073][ T5761] vfs_unlink+0x2e0/0x4f4 [ 83.264726][ T5761] do_unlinkat+0x328/0x618 [ 83.265383][ T5761] __arm64_sys_unlinkat+0xe0/0xfc [ 83.266134][ T5761] invoke_syscall+0x98/0x2b0 [ 83.266826][ T5761] el0_svc_common+0x138/0x258 [ 83.267567][ T5761] do_el0_svc+0x58/0x13c [ 83.268242][ T5761] el0_svc+0x78/0x1d0 [ 83.268834][ T5761] el0t_64_sync_handler+0xcc/0xe4 [ 83.269633][ T5761] el0t_64_sync+0x1a0/0x1a4 [ 83.270551][ T5761] ------------[ cut here ]------------ [ 83.271480][ T5761] WARNING: CPU: 0 PID: 5761 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 83.272944][ T5761] Modules linked in: [ 83.273562][ T5761] CPU: 0 PID: 5761 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 83.274878][ T5761] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.276416][ T5761] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.277554][ T5761] pc : __btrfs_unlink_inode+0x904/0xaec [ 83.278386][ T5761] lr : __btrfs_unlink_inode+0x904/0xaec [ 83.279232][ T5761] sp : ffff800022207a60 [ 83.279840][ T5761] x29: ffff800022207b10 x28: ffff0000d1c20000 x27: ffff0000e2f89c10 [ 83.281125][ T5761] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d5d44160 [ 83.282406][ T5761] x23: ffff700004440f54 x22: dfff800000000000 x21: ffff0000e2d709d0 [ 83.283578][ T5761] x20: ffff0000debeac08 x19: 1fffe0001bd7d581 x18: 0000000000000001 [ 83.284777][ T5761] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 83.285992][ T5761] x14: 0000000000000001 x13: 1ffff00004440e6c x12: 0000000000ff0100 [ 83.287196][ T5761] x11: 0000000000000000 x10: 0000000000000000 x9 : 16b335f3542c3c00 [ 83.288378][ T5761] x8 : 16b335f3542c3c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.289646][ T5761] x5 : ffff800022207378 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 83.290900][ T5761] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.292129][ T5761] Call trace: [ 83.292634][ T5761] __btrfs_unlink_inode+0x904/0xaec [ 83.293467][ T5761] btrfs_unlink+0x108/0x258 [ 83.294141][ T5761] vfs_unlink+0x2e0/0x4f4 [ 83.294782][ T5761] do_unlinkat+0x328/0x618 [ 83.295441][ T5761] __arm64_sys_unlinkat+0xe0/0xfc [ 83.296193][ T5761] invoke_syscall+0x98/0x2b0 [ 83.296933][ T5761] el0_svc_common+0x138/0x258 [ 83.297605][ T5761] do_el0_svc+0x58/0x13c [ 83.298199][ T5761] el0_svc+0x78/0x1d0 [ 83.298765][ T5761] el0t_64_sync_handler+0xcc/0xe4 [ 83.299488][ T5761] el0t_64_sync+0x1a0/0x1a4 [ 83.300173][ T5761] irq event stamp: 79644 [ 83.300808][ T5761] hardirqs last enabled at (79643): [] __up_console_sem+0xb4/0xfc [ 83.302246][ T5761] hardirqs last disabled at (79644): [] el1_dbg+0x24/0x80 [ 83.303572][ T5761] softirqs last enabled at (79624): [] handle_softirqs+0xa40/0xbe4 [ 83.304975][ T5761] softirqs last disabled at (79607): [] __irq_exit_rcu+0x240/0x43c [ 83.306387][ T5761] ---[ end trace ceb9a902a589ad5b ]--- [ 83.307753][ T5761] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 83.309206][ T5761] BTRFS info (device loop0): forced readonly [ 83.468200][ T5783] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.41 (5783) [ 83.471846][ T5783] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.473247][ T5783] BTRFS info (device loop0): using free space tree [ 83.474296][ T5783] BTRFS info (device loop0): has skinny extents [ 83.491747][ T5783] BTRFS info (device loop0): enabling ssd optimizations [ 83.496306][ T5783] FAULT_INJECTION: forcing a failure. [ 83.496306][ T5783] name failslab, interval 1, probability 0, space 0, times 0 [ 83.499081][ T5783] CPU: 1 PID: 5783 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 83.500386][ T5783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.501927][ T5783] Call trace: [ 83.502429][ T5783] dump_backtrace+0x0/0x458 [ 83.503153][ T5783] show_stack+0x2c/0x3c [ 83.503717][ T5783] __dump_stack+0x30/0x40 [ 83.504335][ T5783] dump_stack_lvl+0xf4/0x15c [ 83.505081][ T5783] dump_stack+0x1c/0x5c [ 83.505694][ T5783] should_fail+0x3bc/0x514 [ 83.506370][ T5783] __should_failslab+0xbc/0x10c [ 83.507095][ T5783] should_failslab+0x10/0x28 [ 83.507774][ T5783] slab_pre_alloc_hook+0x64/0xe8 [ 83.508490][ T5783] kmem_cache_alloc_trace+0x98/0x3ec [ 83.509390][ T5783] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 83.510317][ T5783] __btrfs_unlink_inode+0x350/0xaec [ 83.511145][ T5783] btrfs_unlink+0x108/0x258 [ 83.511797][ T5783] vfs_unlink+0x2e0/0x4f4 [ 83.512452][ T5783] do_unlinkat+0x328/0x618 [ 83.513123][ T5783] __arm64_sys_unlinkat+0xe0/0xfc [ 83.513879][ T5783] invoke_syscall+0x98/0x2b0 [ 83.514619][ T5783] el0_svc_common+0x138/0x258 [ 83.515386][ T5783] do_el0_svc+0x58/0x13c [ 83.516002][ T5783] el0_svc+0x78/0x1d0 [ 83.516618][ T5783] el0t_64_sync_handler+0xcc/0xe4 [ 83.517421][ T5783] el0t_64_sync+0x1a0/0x1a4 [ 83.519891][ T5783] ------------[ cut here ]------------ [ 83.520855][ T5783] WARNING: CPU: 1 PID: 5783 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 83.522402][ T5783] Modules linked in: [ 83.523020][ T5783] CPU: 1 PID: 5783 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 83.524347][ T5783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.525848][ T5783] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.527069][ T5783] pc : __btrfs_unlink_inode+0x904/0xaec [ 83.527902][ T5783] lr : __btrfs_unlink_inode+0x904/0xaec [ 83.528719][ T5783] sp : ffff800021d87a60 [ 83.529336][ T5783] x29: ffff800021d87b10 x28: ffff0000d2732000 x27: ffff0000e2de9c10 [ 83.530532][ T5783] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000ecef3630 [ 83.531720][ T5783] x23: ffff7000043b0f54 x22: dfff800000000000 x21: ffff0000ed51d850 [ 83.532950][ T5783] x20: ffff0000debe6aa8 x19: 1fffe0001bd7cd55 x18: 0000000000000001 [ 83.534252][ T5783] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 83.535533][ T5783] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 83.536768][ T5783] x11: 0000000000000000 x10: 0000000000000000 x9 : 6919f51f16019700 [ 83.537949][ T5783] x8 : 6919f51f16019700 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.539172][ T5783] x5 : ffff800021d87378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 83.540387][ T5783] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.541549][ T5783] Call trace: [ 83.541992][ T5783] __btrfs_unlink_inode+0x904/0xaec [ 83.542769][ T5783] btrfs_unlink+0x108/0x258 [ 83.543444][ T5783] vfs_unlink+0x2e0/0x4f4 [ 83.544034][ T5783] do_unlinkat+0x328/0x618 [ 83.544721][ T5783] __arm64_sys_unlinkat+0xe0/0xfc [ 83.545478][ T5783] invoke_syscall+0x98/0x2b0 [ 83.546145][ T5783] el0_svc_common+0x138/0x258 [ 83.546866][ T5783] do_el0_svc+0x58/0x13c [ 83.547529][ T5783] el0_svc+0x78/0x1d0 [ 83.548125][ T5783] el0t_64_sync_handler+0xcc/0xe4 [ 83.548889][ T5783] el0t_64_sync+0x1a0/0x1a4 [ 83.549550][ T5783] irq event stamp: 81076 [ 83.550135][ T5783] hardirqs last enabled at (81075): [] __up_console_sem+0xb4/0xfc [ 83.551633][ T5783] hardirqs last disabled at (81076): [] el1_dbg+0x24/0x80 [ 83.552892][ T5783] softirqs last enabled at (81056): [] handle_softirqs+0xa40/0xbe4 [ 83.554286][ T5783] softirqs last disabled at (80957): [] __irq_exit_rcu+0x240/0x43c [ 83.555716][ T5783] ---[ end trace ceb9a902a589ad5c ]--- [ 83.558957][ T5783] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 83.560338][ T5783] BTRFS info (device loop0): forced readonly [ 83.749095][ T5805] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.42 (5805) [ 83.756348][ T5805] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.758228][ T5805] BTRFS info (device loop0): using free space tree [ 83.759512][ T5805] BTRFS info (device loop0): has skinny extents [ 83.767115][ T5805] BTRFS info (device loop0): enabling ssd optimizations [ 83.772816][ T5805] FAULT_INJECTION: forcing a failure. [ 83.772816][ T5805] name failslab, interval 1, probability 0, space 0, times 0 [ 83.774915][ T5805] CPU: 1 PID: 5805 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 83.776292][ T5805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.777787][ T5805] Call trace: [ 83.778278][ T5805] dump_backtrace+0x0/0x458 [ 83.779020][ T5805] show_stack+0x2c/0x3c [ 83.779592][ T5805] __dump_stack+0x30/0x40 [ 83.780289][ T5805] dump_stack_lvl+0xf4/0x15c [ 83.780949][ T5805] dump_stack+0x1c/0x5c [ 83.781554][ T5805] should_fail+0x3bc/0x514 [ 83.782225][ T5805] __should_failslab+0xbc/0x10c [ 83.783046][ T5805] should_failslab+0x10/0x28 [ 83.783707][ T5805] slab_pre_alloc_hook+0x64/0xe8 [ 83.784445][ T5805] kmem_cache_alloc_trace+0x98/0x3ec [ 83.785202][ T5805] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 83.786064][ T5805] __btrfs_unlink_inode+0x350/0xaec [ 83.786862][ T5805] btrfs_unlink+0x108/0x258 [ 83.787540][ T5805] vfs_unlink+0x2e0/0x4f4 [ 83.788169][ T5805] do_unlinkat+0x328/0x618 [ 83.788824][ T5805] __arm64_sys_unlinkat+0xe0/0xfc [ 83.789549][ T5805] invoke_syscall+0x98/0x2b0 [ 83.790248][ T5805] el0_svc_common+0x138/0x258 [ 83.790952][ T5805] do_el0_svc+0x58/0x13c [ 83.791604][ T5805] el0_svc+0x78/0x1d0 [ 83.792208][ T5805] el0t_64_sync_handler+0xcc/0xe4 [ 83.792929][ T5805] el0t_64_sync+0x1a0/0x1a4 [ 83.795471][ T5805] ------------[ cut here ]------------ [ 83.796440][ T5805] WARNING: CPU: 1 PID: 5805 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 83.797860][ T5805] Modules linked in: [ 83.798462][ T5805] CPU: 1 PID: 5805 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 83.799685][ T5805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.801150][ T5805] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.802298][ T5805] pc : __btrfs_unlink_inode+0x904/0xaec [ 83.803131][ T5805] lr : __btrfs_unlink_inode+0x904/0xaec [ 83.803941][ T5805] sp : ffff800022467a60 [ 83.804567][ T5805] x29: ffff800022467b10 x28: ffff0000d5c8a000 x27: ffff0000e2de9810 [ 83.805752][ T5805] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000e811dbb0 [ 83.806969][ T5805] x23: ffff70000448cf54 x22: dfff800000000000 x21: ffff0000e2e68000 [ 83.808202][ T5805] x20: ffff0000debe6528 x19: 1fffe0001bd7cca5 x18: 0000000000000001 [ 83.809383][ T5805] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 83.810590][ T5805] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 83.811847][ T5805] x11: 0000000000000000 x10: 0000000000000000 x9 : d4a1267324c4a000 [ 83.813047][ T5805] x8 : d4a1267324c4a000 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.814305][ T5805] x5 : ffff800022467378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 83.815540][ T5805] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.816777][ T5805] Call trace: [ 83.817288][ T5805] __btrfs_unlink_inode+0x904/0xaec [ 83.818051][ T5805] btrfs_unlink+0x108/0x258 [ 83.818767][ T5805] vfs_unlink+0x2e0/0x4f4 [ 83.819390][ T5805] do_unlinkat+0x328/0x618 [ 83.820055][ T5805] __arm64_sys_unlinkat+0xe0/0xfc [ 83.820782][ T5805] invoke_syscall+0x98/0x2b0 [ 83.821489][ T5805] el0_svc_common+0x138/0x258 [ 83.822171][ T5805] do_el0_svc+0x58/0x13c [ 83.822788][ T5805] el0_svc+0x78/0x1d0 [ 83.823407][ T5805] el0t_64_sync_handler+0xcc/0xe4 [ 83.824168][ T5805] el0t_64_sync+0x1a0/0x1a4 [ 83.824863][ T5805] irq event stamp: 80226 [ 83.825490][ T5805] hardirqs last enabled at (80225): [] __up_console_sem+0xb4/0xfc [ 83.826869][ T5805] hardirqs last disabled at (80226): [] el1_dbg+0x24/0x80 [ 83.828134][ T5805] softirqs last enabled at (80206): [] handle_softirqs+0xa40/0xbe4 [ 83.829576][ T5805] softirqs last disabled at (80177): [] __irq_exit_rcu+0x240/0x43c [ 83.831037][ T5805] ---[ end trace ceb9a902a589ad5d ]--- [ 83.834307][ T5805] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 83.835836][ T5805] BTRFS info (device loop0): forced readonly [ 83.987030][ T5827] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.43 (5827) [ 83.995188][ T5827] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.996614][ T5827] BTRFS info (device loop0): using free space tree [ 83.998031][ T5827] BTRFS info (device loop0): has skinny extents [ 84.008028][ T5827] BTRFS info (device loop0): enabling ssd optimizations [ 84.012021][ T5827] FAULT_INJECTION: forcing a failure. [ 84.012021][ T5827] name failslab, interval 1, probability 0, space 0, times 0 [ 84.014006][ T5827] CPU: 1 PID: 5827 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 84.015308][ T5827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.016815][ T5827] Call trace: [ 84.017255][ T5827] dump_backtrace+0x0/0x458 [ 84.017930][ T5827] show_stack+0x2c/0x3c [ 84.018533][ T5827] __dump_stack+0x30/0x40 [ 84.019185][ T5827] dump_stack_lvl+0xf4/0x15c [ 84.019941][ T5827] dump_stack+0x1c/0x5c [ 84.020582][ T5827] should_fail+0x3bc/0x514 [ 84.021206][ T5827] __should_failslab+0xbc/0x10c [ 84.021950][ T5827] should_failslab+0x10/0x28 [ 84.022641][ T5827] slab_pre_alloc_hook+0x64/0xe8 [ 84.023351][ T5827] kmem_cache_alloc_trace+0x98/0x3ec [ 84.024175][ T5827] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 84.025113][ T5827] __btrfs_unlink_inode+0x350/0xaec [ 84.025873][ T5827] btrfs_unlink+0x108/0x258 [ 84.026550][ T5827] vfs_unlink+0x2e0/0x4f4 [ 84.027150][ T5827] do_unlinkat+0x328/0x618 [ 84.027819][ T5827] __arm64_sys_unlinkat+0xe0/0xfc [ 84.028553][ T5827] invoke_syscall+0x98/0x2b0 [ 84.029210][ T5827] el0_svc_common+0x138/0x258 [ 84.029880][ T5827] do_el0_svc+0x58/0x13c [ 84.030470][ T5827] el0_svc+0x78/0x1d0 [ 84.031102][ T5827] el0t_64_sync_handler+0xcc/0xe4 [ 84.031875][ T5827] el0t_64_sync+0x1a0/0x1a4 [ 84.034492][ T5827] ------------[ cut here ]------------ [ 84.035506][ T5827] WARNING: CPU: 1 PID: 5827 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 84.037012][ T5827] Modules linked in: [ 84.037590][ T5827] CPU: 1 PID: 5827 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 84.038964][ T5827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.040434][ T5827] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 84.041641][ T5827] pc : __btrfs_unlink_inode+0x904/0xaec [ 84.042474][ T5827] lr : __btrfs_unlink_inode+0x904/0xaec [ 84.043321][ T5827] sp : ffff8000225b7a60 [ 84.043919][ T5827] x29: ffff8000225b7b10 x28: ffff0000c8a52000 x27: ffff0000e2deb410 [ 84.045156][ T5827] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d1e7dc60 [ 84.046353][ T5827] x23: ffff7000044b6f54 x22: dfff800000000000 x21: ffff0000e2e689d0 [ 84.047584][ T5827] x20: ffff0000debe6268 x19: 1fffe0001bd7cc4d x18: 0000000000000001 [ 84.048734][ T5827] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 84.049941][ T5827] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 84.051101][ T5827] x11: 0000000000000000 x10: 0000000000000000 x9 : c7625adfdbe76200 [ 84.052403][ T5827] x8 : c7625adfdbe76200 x7 : 0000000000000001 x6 : 0000000000000001 [ 84.053595][ T5827] x5 : ffff8000225b7378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 84.054813][ T5827] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 84.055992][ T5827] Call trace: [ 84.056519][ T5827] __btrfs_unlink_inode+0x904/0xaec [ 84.057273][ T5827] btrfs_unlink+0x108/0x258 [ 84.058000][ T5827] vfs_unlink+0x2e0/0x4f4 [ 84.058680][ T5827] do_unlinkat+0x328/0x618 [ 84.059338][ T5827] __arm64_sys_unlinkat+0xe0/0xfc [ 84.060128][ T5827] invoke_syscall+0x98/0x2b0 [ 84.060757][ T5827] el0_svc_common+0x138/0x258 [ 84.061441][ T5827] do_el0_svc+0x58/0x13c [ 84.062119][ T5827] el0_svc+0x78/0x1d0 [ 84.062747][ T5827] el0t_64_sync_handler+0xcc/0xe4 [ 84.063468][ T5827] el0t_64_sync+0x1a0/0x1a4 [ 84.064131][ T5827] irq event stamp: 81264 [ 84.064783][ T5827] hardirqs last enabled at (81263): [] __up_console_sem+0xb4/0xfc [ 84.066179][ T5827] hardirqs last disabled at (81264): [] el1_dbg+0x24/0x80 [ 84.067429][ T5827] softirqs last enabled at (81244): [] handle_softirqs+0xa40/0xbe4 [ 84.068828][ T5827] softirqs last disabled at (81215): [] __irq_exit_rcu+0x240/0x43c [ 84.070254][ T5827] ---[ end trace ceb9a902a589ad5e ]--- [ 84.077321][ T5827] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 84.079229][ T5827] BTRFS info (device loop0): forced readonly [ 84.272020][ T5849] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.44 (5849) [ 84.276210][ T5849] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 84.278017][ T5849] BTRFS info (device loop0): using free space tree [ 84.279023][ T5849] BTRFS info (device loop0): has skinny extents [ 84.287200][ T5849] BTRFS info (device loop0): enabling ssd optimizations [ 84.292709][ T5849] FAULT_INJECTION: forcing a failure. [ 84.292709][ T5849] name failslab, interval 1, probability 0, space 0, times 0 [ 84.294648][ T5849] CPU: 0 PID: 5849 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 84.295984][ T5849] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.297622][ T5849] Call trace: [ 84.298149][ T5849] dump_backtrace+0x0/0x458 [ 84.298838][ T5849] show_stack+0x2c/0x3c [ 84.299472][ T5849] __dump_stack+0x30/0x40 [ 84.300075][ T5849] dump_stack_lvl+0xf4/0x15c [ 84.300739][ T5849] dump_stack+0x1c/0x5c [ 84.301349][ T5849] should_fail+0x3bc/0x514 [ 84.302025][ T5849] __should_failslab+0xbc/0x10c [ 84.302811][ T5849] should_failslab+0x10/0x28 [ 84.303445][ T5849] slab_pre_alloc_hook+0x64/0xe8 [ 84.304173][ T5849] kmem_cache_alloc_trace+0x98/0x3ec [ 84.305002][ T5849] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 84.305926][ T5849] __btrfs_unlink_inode+0x350/0xaec [ 84.306679][ T5849] btrfs_unlink+0x108/0x258 [ 84.307334][ T5849] vfs_unlink+0x2e0/0x4f4 [ 84.307960][ T5849] do_unlinkat+0x328/0x618 [ 84.308626][ T5849] __arm64_sys_unlinkat+0xe0/0xfc [ 84.309383][ T5849] invoke_syscall+0x98/0x2b0 [ 84.310086][ T5849] el0_svc_common+0x138/0x258 [ 84.310837][ T5849] do_el0_svc+0x58/0x13c [ 84.311460][ T5849] el0_svc+0x78/0x1d0 [ 84.312042][ T5849] el0t_64_sync_handler+0xcc/0xe4 [ 84.312778][ T5849] el0t_64_sync+0x1a0/0x1a4 [ 84.314861][ T5849] ------------[ cut here ]------------ [ 84.315804][ T5849] WARNING: CPU: 0 PID: 5849 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 84.317260][ T5849] Modules linked in: [ 84.317917][ T5849] CPU: 0 PID: 5849 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 84.319257][ T5849] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.320833][ T5849] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 84.322024][ T5849] pc : __btrfs_unlink_inode+0x904/0xaec [ 84.322812][ T5849] lr : __btrfs_unlink_inode+0x904/0xaec [ 84.323657][ T5849] sp : ffff8000226f7a60 [ 84.324260][ T5849] x29: ffff8000226f7b10 x28: ffff0000d92a2000 x27: ffff0000e2f89810 [ 84.325529][ T5849] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000c9e95000 [ 84.326852][ T5849] x23: ffff7000044def54 x22: dfff800000000000 x21: ffff0000e2d76bf0 [ 84.328063][ T5849] x20: ffff0000debea9f8 x19: 1fffe0001bd7d53f x18: 0000000000000001 [ 84.329338][ T5849] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 84.330587][ T5849] x14: 0000000000000001 x13: 1ffff000044dee6c x12: 0000000000ff0100 [ 84.331867][ T5849] x11: 0000000000000000 x10: 0000000000000000 x9 : 2b4d58a9eb422500 [ 84.333150][ T5849] x8 : 2b4d58a9eb422500 x7 : 0000000000000001 x6 : 0000000000000001 [ 84.334472][ T5849] x5 : ffff8000226f7378 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 84.335692][ T5849] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 84.336946][ T5849] Call trace: [ 84.337404][ T5849] __btrfs_unlink_inode+0x904/0xaec [ 84.338171][ T5849] btrfs_unlink+0x108/0x258 [ 84.338816][ T5849] vfs_unlink+0x2e0/0x4f4 [ 84.339499][ T5849] do_unlinkat+0x328/0x618 [ 84.340201][ T5849] __arm64_sys_unlinkat+0xe0/0xfc [ 84.340927][ T5849] invoke_syscall+0x98/0x2b0 [ 84.341615][ T5849] el0_svc_common+0x138/0x258 [ 84.342307][ T5849] do_el0_svc+0x58/0x13c [ 84.342961][ T5849] el0_svc+0x78/0x1d0 [ 84.343620][ T5849] el0t_64_sync_handler+0xcc/0xe4 [ 84.344449][ T5849] el0t_64_sync+0x1a0/0x1a4 [ 84.345149][ T5849] irq event stamp: 83044 [ 84.345753][ T5849] hardirqs last enabled at (83043): [] __up_console_sem+0xb4/0xfc [ 84.347149][ T5849] hardirqs last disabled at (83044): [] el1_dbg+0x24/0x80 [ 84.348357][ T5849] softirqs last enabled at (83022): [] handle_softirqs+0xa40/0xbe4 [ 84.349843][ T5849] softirqs last disabled at (82913): [] __irq_exit_rcu+0x240/0x43c [ 84.351227][ T5849] ---[ end trace ceb9a902a589ad5f ]--- [ 84.353081][ T5849] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 84.354605][ T5849] BTRFS info (device loop0): forced readonly [ 84.509558][ T5871] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.45 (5871) [ 84.514706][ T5871] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 84.516066][ T5871] BTRFS info (device loop0): using free space tree [ 84.517182][ T5871] BTRFS info (device loop0): has skinny extents [ 84.528395][ T5871] BTRFS info (device loop0): enabling ssd optimizations [ 84.532857][ T5871] FAULT_INJECTION: forcing a failure. [ 84.532857][ T5871] name failslab, interval 1, probability 0, space 0, times 0 [ 84.535014][ T5871] CPU: 0 PID: 5871 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 84.536443][ T5871] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.538060][ T5871] Call trace: [ 84.538619][ T5871] dump_backtrace+0x0/0x458 [ 84.539313][ T5871] show_stack+0x2c/0x3c [ 84.539951][ T5871] __dump_stack+0x30/0x40 [ 84.540637][ T5871] dump_stack_lvl+0xf4/0x15c [ 84.541311][ T5871] dump_stack+0x1c/0x5c [ 84.541930][ T5871] should_fail+0x3bc/0x514 [ 84.542630][ T5871] __should_failslab+0xbc/0x10c [ 84.543349][ T5871] should_failslab+0x10/0x28 [ 84.544051][ T5871] slab_pre_alloc_hook+0x64/0xe8 [ 84.544811][ T5871] kmem_cache_alloc+0x94/0x3d4 [ 84.545580][ T5871] btrfs_alloc_path+0x5c/0x68 [ 84.546287][ T5871] __btrfs_unlink_inode+0x1dc/0xaec [ 84.547055][ T5871] btrfs_unlink+0x108/0x258 [ 84.547764][ T5871] vfs_unlink+0x2e0/0x4f4 [ 84.548463][ T5871] do_unlinkat+0x328/0x618 [ 84.549184][ T5871] __arm64_sys_unlinkat+0xe0/0xfc [ 84.549985][ T5871] invoke_syscall+0x98/0x2b0 [ 84.550695][ T5871] el0_svc_common+0x138/0x258 [ 84.551407][ T5871] do_el0_svc+0x58/0x13c [ 84.552042][ T5871] el0_svc+0x78/0x1d0 [ 84.552603][ T5871] el0t_64_sync_handler+0xcc/0xe4 [ 84.553391][ T5871] el0t_64_sync+0x1a0/0x1a4 1970/01/01 00:01:24 executed programs: 33 [ 84.608978][ T5060] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (5060) [ 84.838725][ T5893] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 84.840116][ T5893] BTRFS info (device loop0): using free space tree [ 84.841065][ T5893] BTRFS info (device loop0): has skinny extents [ 85.000493][ T5893] BTRFS info (device loop0): enabling ssd optimizations [ 85.004776][ T5893] FAULT_INJECTION: forcing a failure. [ 85.004776][ T5893] name failslab, interval 1, probability 0, space 0, times 0 [ 85.006820][ T5893] CPU: 1 PID: 5893 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 85.008201][ T5893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.009760][ T5893] Call trace: [ 85.010219][ T5893] dump_backtrace+0x0/0x458 [ 85.010931][ T5893] show_stack+0x2c/0x3c [ 85.011537][ T5893] __dump_stack+0x30/0x40 [ 85.012201][ T5893] dump_stack_lvl+0xf4/0x15c [ 85.012909][ T5893] dump_stack+0x1c/0x5c [ 85.013534][ T5893] should_fail+0x3bc/0x514 [ 85.014254][ T5893] __should_failslab+0xbc/0x10c [ 85.015031][ T5893] should_failslab+0x10/0x28 [ 85.015750][ T5893] slab_pre_alloc_hook+0x64/0xe8 [ 85.016554][ T5893] kmem_cache_alloc_trace+0x98/0x3ec [ 85.017392][ T5893] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 85.018331][ T5893] __btrfs_unlink_inode+0x350/0xaec [ 85.019066][ T5893] btrfs_unlink+0x108/0x258 [ 85.019732][ T5893] vfs_unlink+0x2e0/0x4f4 [ 85.020369][ T5893] do_unlinkat+0x328/0x618 [ 85.021032][ T5893] __arm64_sys_unlinkat+0xe0/0xfc [ 85.021743][ T5893] invoke_syscall+0x98/0x2b0 [ 85.022432][ T5893] el0_svc_common+0x138/0x258 [ 85.023096][ T5893] do_el0_svc+0x58/0x13c [ 85.023740][ T5893] el0_svc+0x78/0x1d0 [ 85.024326][ T5893] el0t_64_sync_handler+0xcc/0xe4 [ 85.025098][ T5893] el0t_64_sync+0x1a0/0x1a4 [ 85.029186][ T5893] ------------[ cut here ]------------ [ 85.030150][ T5893] WARNING: CPU: 1 PID: 5893 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 85.031584][ T5893] Modules linked in: [ 85.032208][ T5893] CPU: 1 PID: 5893 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 85.033598][ T5893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.035201][ T5893] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 85.036441][ T5893] pc : __btrfs_unlink_inode+0x904/0xaec [ 85.037274][ T5893] lr : __btrfs_unlink_inode+0x904/0xaec [ 85.038161][ T5893] sp : ffff8000226f7a60 [ 85.038803][ T5893] x29: ffff8000226f7b10 x28: ffff0000ec71a000 x27: ffff0000e2de8c10 [ 85.040045][ T5893] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d2c966e0 [ 85.041269][ T5893] x23: ffff7000044def54 x22: dfff800000000000 x21: ffff0000e2e6e220 [ 85.042498][ T5893] x20: ffff0000debe6f78 x19: 1fffe0001bd7cdef x18: 0000000000000001 [ 85.043662][ T5893] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 85.044883][ T5893] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 85.046059][ T5893] x11: 0000000000000000 x10: 0000000000000000 x9 : 539aa43e44fb6800 [ 85.047288][ T5893] x8 : 539aa43e44fb6800 x7 : 0000000000000001 x6 : 0000000000000001 [ 85.048597][ T5893] x5 : ffff8000226f7378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 85.049882][ T5893] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 85.051102][ T5893] Call trace: [ 85.051593][ T5893] __btrfs_unlink_inode+0x904/0xaec [ 85.052337][ T5893] btrfs_unlink+0x108/0x258 [ 85.052981][ T5893] vfs_unlink+0x2e0/0x4f4 [ 85.053640][ T5893] do_unlinkat+0x328/0x618 [ 85.054339][ T5893] __arm64_sys_unlinkat+0xe0/0xfc [ 85.055198][ T5893] invoke_syscall+0x98/0x2b0 [ 85.055843][ T5893] el0_svc_common+0x138/0x258 [ 85.056512][ T5893] do_el0_svc+0x58/0x13c [ 85.057216][ T5893] el0_svc+0x78/0x1d0 [ 85.057873][ T5893] el0t_64_sync_handler+0xcc/0xe4 [ 85.058624][ T5893] el0t_64_sync+0x1a0/0x1a4 [ 85.059341][ T5893] irq event stamp: 80204 [ 85.059978][ T5893] hardirqs last enabled at (80203): [] __up_console_sem+0xb4/0xfc [ 85.061478][ T5893] hardirqs last disabled at (80204): [] el1_dbg+0x24/0x80 [ 85.062819][ T5893] softirqs last enabled at (80184): [] handle_softirqs+0xa40/0xbe4 [ 85.064239][ T5893] softirqs last disabled at (80079): [] __irq_exit_rcu+0x240/0x43c [ 85.065686][ T5893] ---[ end trace ceb9a902a589ad60 ]--- [ 85.069873][ T5893] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 85.071434][ T5893] BTRFS info (device loop0): forced readonly [ 85.264366][ T5917] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.47 (5917) [ 85.268945][ T5917] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 85.270322][ T5917] BTRFS info (device loop0): using free space tree [ 85.271386][ T5917] BTRFS info (device loop0): has skinny extents [ 85.281958][ T5917] BTRFS info (device loop0): enabling ssd optimizations [ 85.286019][ T5917] FAULT_INJECTION: forcing a failure. [ 85.286019][ T5917] name failslab, interval 1, probability 0, space 0, times 0 [ 85.288492][ T5917] CPU: 0 PID: 5917 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 85.289836][ T5917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.291351][ T5917] Call trace: [ 85.291820][ T5917] dump_backtrace+0x0/0x458 [ 85.292534][ T5917] show_stack+0x2c/0x3c [ 85.293127][ T5917] __dump_stack+0x30/0x40 [ 85.293814][ T5917] dump_stack_lvl+0xf4/0x15c [ 85.294548][ T5917] dump_stack+0x1c/0x5c [ 85.295166][ T5917] should_fail+0x3bc/0x514 [ 85.295864][ T5917] __should_failslab+0xbc/0x10c [ 85.296545][ T5917] should_failslab+0x10/0x28 [ 85.297219][ T5917] slab_pre_alloc_hook+0x64/0xe8 [ 85.297964][ T5917] kmem_cache_alloc_trace+0x98/0x3ec [ 85.298771][ T5917] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 85.299652][ T5917] __btrfs_unlink_inode+0x350/0xaec [ 85.300469][ T5917] btrfs_unlink+0x108/0x258 [ 85.301159][ T5917] vfs_unlink+0x2e0/0x4f4 [ 85.301811][ T5917] do_unlinkat+0x328/0x618 [ 85.302489][ T5917] __arm64_sys_unlinkat+0xe0/0xfc [ 85.303251][ T5917] invoke_syscall+0x98/0x2b0 [ 85.303946][ T5917] el0_svc_common+0x138/0x258 [ 85.304681][ T5917] do_el0_svc+0x58/0x13c [ 85.305327][ T5917] el0_svc+0x78/0x1d0 [ 85.305942][ T5917] el0t_64_sync_handler+0xcc/0xe4 [ 85.306712][ T5917] el0t_64_sync+0x1a0/0x1a4 [ 85.308384][ T5917] ------------[ cut here ]------------ [ 85.309335][ T5917] WARNING: CPU: 0 PID: 5917 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 85.310840][ T5917] Modules linked in: [ 85.311493][ T5917] CPU: 0 PID: 5917 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 85.312881][ T5917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.314388][ T5917] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 85.315556][ T5917] pc : __btrfs_unlink_inode+0x904/0xaec [ 85.316354][ T5917] lr : __btrfs_unlink_inode+0x904/0xaec [ 85.317157][ T5917] sp : ffff8000228e7a60 [ 85.317791][ T5917] x29: ffff8000228e7b10 x28: ffff0000c86dc000 x27: ffff0000e2f8a010 [ 85.319040][ T5917] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000d241c840 [ 85.320256][ T5917] x23: ffff70000451cf54 x22: dfff800000000000 x21: ffff0000e2d70000 [ 85.321523][ T5917] x20: ffff0000debeae18 x19: 1fffe0001bd7d5c3 x18: 0000000000000001 [ 85.322772][ T5917] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 85.323972][ T5917] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 85.325225][ T5917] x11: 0000000000000000 x10: 0000000000000000 x9 : 1e5cca88adccc400 [ 85.326471][ T5917] x8 : 1e5cca88adccc400 x7 : 0000000000000001 x6 : 0000000000000001 [ 85.327716][ T5917] x5 : ffff8000228e7378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 85.328932][ T5917] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 85.330178][ T5917] Call trace: [ 85.330638][ T5917] __btrfs_unlink_inode+0x904/0xaec [ 85.331358][ T5917] btrfs_unlink+0x108/0x258 [ 85.332110][ T5917] vfs_unlink+0x2e0/0x4f4 [ 85.332806][ T5917] do_unlinkat+0x328/0x618 [ 85.333468][ T5917] __arm64_sys_unlinkat+0xe0/0xfc [ 85.334276][ T5917] invoke_syscall+0x98/0x2b0 [ 85.334971][ T5917] el0_svc_common+0x138/0x258 [ 85.335698][ T5917] do_el0_svc+0x58/0x13c [ 85.336365][ T5917] el0_svc+0x78/0x1d0 [ 85.336985][ T5917] el0t_64_sync_handler+0xcc/0xe4 [ 85.337775][ T5917] el0t_64_sync+0x1a0/0x1a4 [ 85.338534][ T5917] irq event stamp: 81574 [ 85.339165][ T5917] hardirqs last enabled at (81573): [] __up_console_sem+0xb4/0xfc [ 85.340666][ T5917] hardirqs last disabled at (81574): [] el1_dbg+0x24/0x80 [ 85.342024][ T5917] softirqs last enabled at (81554): [] handle_softirqs+0xa40/0xbe4 [ 85.343533][ T5917] softirqs last disabled at (81539): [] __irq_exit_rcu+0x240/0x43c [ 85.344852][ T5917] ---[ end trace ceb9a902a589ad61 ]--- [ 85.345947][ T5917] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 85.347431][ T5917] BTRFS info (device loop0): forced readonly [ 85.485886][ T5939] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.48 (5939) [ 85.491292][ T5939] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 85.492718][ T5939] BTRFS info (device loop0): using free space tree [ 85.493788][ T5939] BTRFS info (device loop0): has skinny extents [ 85.503352][ T5939] BTRFS info (device loop0): enabling ssd optimizations [ 85.508987][ T5939] FAULT_INJECTION: forcing a failure. [ 85.508987][ T5939] name failslab, interval 1, probability 0, space 0, times 0 [ 85.511236][ T5939] CPU: 1 PID: 5939 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 85.512692][ T5939] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.514262][ T5939] Call trace: [ 85.514758][ T5939] dump_backtrace+0x0/0x458 [ 85.515457][ T5939] show_stack+0x2c/0x3c [ 85.516090][ T5939] __dump_stack+0x30/0x40 [ 85.516750][ T5939] dump_stack_lvl+0xf4/0x15c [ 85.517400][ T5939] dump_stack+0x1c/0x5c [ 85.517993][ T5939] should_fail+0x3bc/0x514 [ 85.518680][ T5939] __should_failslab+0xbc/0x10c [ 85.519439][ T5939] should_failslab+0x10/0x28 [ 85.520123][ T5939] slab_pre_alloc_hook+0x64/0xe8 [ 85.520824][ T5939] kmem_cache_alloc_trace+0x98/0x3ec [ 85.521637][ T5939] btrfs_delete_delayed_dir_index+0x22c/0x56c [ 85.522543][ T5939] __btrfs_unlink_inode+0x350/0xaec [ 85.523354][ T5939] btrfs_unlink+0x108/0x258 [ 85.524069][ T5939] vfs_unlink+0x2e0/0x4f4 [ 85.524755][ T5939] do_unlinkat+0x328/0x618 [ 85.525419][ T5939] __arm64_sys_unlinkat+0xe0/0xfc [ 85.526172][ T5939] invoke_syscall+0x98/0x2b0 [ 85.526919][ T5939] el0_svc_common+0x138/0x258 [ 85.527689][ T5939] do_el0_svc+0x58/0x13c [ 85.528378][ T5939] el0_svc+0x78/0x1d0 [ 85.529093][ T5939] el0t_64_sync_handler+0xcc/0xe4 [ 85.529880][ T5939] el0t_64_sync+0x1a0/0x1a4 [ 85.533247][ T5939] ------------[ cut here ]------------ [ 85.534242][ T5939] WARNING: CPU: 1 PID: 5939 at fs/btrfs/inode.c:4182 __btrfs_unlink_inode+0x904/0xaec [ 85.535741][ T5939] Modules linked in: [ 85.536301][ T5939] CPU: 1 PID: 5939 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 85.537618][ T5939] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.539236][ T5939] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 85.540475][ T5939] pc : __btrfs_unlink_inode+0x904/0xaec [ 85.541320][ T5939] lr : __btrfs_unlink_inode+0x904/0xaec [ 85.542150][ T5939] sp : ffff800022e67a60 [ 85.542765][ T5939] x29: ffff800022e67b10 x28: ffff0000d561c000 x27: ffff0000e2dea810 [ 85.543996][ T5939] x26: 0000000000000100 x25: 00000000fffffff4 x24: ffff0000cd7d4840 [ 85.545199][ T5939] x23: ffff7000045ccf54 x22: dfff800000000000 x21: ffff0000e2ec5850 [ 85.546396][ T5939] x20: ffff0000debe6688 x19: 1fffe0001bd7ccd1 x18: 0000000000000001 [ 85.547590][ T5939] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 85.548835][ T5939] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 85.550089][ T5939] x11: 0000000000000000 x10: 0000000000000000 x9 : 7c82f26986481a00 [ 85.551298][ T5939] x8 : 7c82f26986481a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 85.552514][ T5939] x5 : ffff800022e67378 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 85.553692][ T5939] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 85.554876][ T5939] Call trace: [ 85.555330][ T5939] __btrfs_unlink_inode+0x904/0xaec [ 85.556084][ T5939] btrfs_unlink+0x108/0x258 [ 85.556731][ T5939] vfs_unlink+0x2e0/0x4f4 [ 85.557354][ T5939] do_unlinkat+0x328/0x618 [ 85.558013][ T5939] __arm64_sys_unlinkat+0xe0/0xfc [ 85.558717][ T5939] invoke_syscall+0x98/0x2b0 [ 85.559408][ T5939] el0_svc_common+0x138/0x258 [ 85.560093][ T5939] do_el0_svc+0x58/0x13c [ 85.560718][ T5939] el0_svc+0x78/0x1d0 [ 85.561348][ T5939] el0t_64_sync_handler+0xcc/0xe4 [ 85.562137][ T5939] el0t_64_sync+0x1a0/0x1a4 [ 85.562758][ T5939] irq event stamp: 80878 [ 85.563374][ T5939] hardirqs last enabled at (80877): [] __up_console_sem+0xb4/0xfc [ 85.564809][ T5939] hardirqs last disabled at (80878): [] el1_dbg+0x24/0x80 [ 85.566151][ T5939] softirqs last enabled at (80858): [] handle_softirqs+0xa40/0xbe4 [ 85.567605][ T5939] softirqs last disabled at (80711): [] __irq_exit_rcu+0x240/0x43c [ 85.569055][ T5939] ---[ end trace ceb9a902a589ad62 ]--- [ 85.571636][ T5939] BTRFS: error (device loop0) in __btrfs_unlink_inode:4182: errno=-12 Out of memory [ 85.573218][ T5939] BTRFS info (device loop0): forced readonly