Warning: Permanently added '10.128.1.134' (ED25519) to the list of known hosts. 1970/01/01 00:01:02 parsed 1 programs [ 63.582587][ T4454] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 66.840385][ T4538] chnl_net:caif_netlink_parms(): no params data found [ 66.860124][ T4538] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.861417][ T4538] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.863113][ T4538] device bridge_slave_0 entered promiscuous mode [ 66.865325][ T4538] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.866575][ T4538] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.868111][ T4538] device bridge_slave_1 entered promiscuous mode [ 66.879025][ T4538] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.881797][ T4538] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.891076][ T4538] team0: Port device team_slave_0 added [ 66.893034][ T4538] team0: Port device team_slave_1 added [ 66.900909][ T4538] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.902053][ T4538] 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. [ 66.906634][ T4538] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.909312][ T4538] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.910801][ T4538] 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. [ 66.915161][ T4538] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.971181][ T4538] device hsr_slave_0 entered promiscuous mode [ 67.010086][ T4538] device hsr_slave_1 entered promiscuous mode [ 67.733683][ T4538] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.801338][ T4538] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.821865][ T4538] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.865875][ T4538] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.945637][ T4538] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.955956][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.957583][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.960640][ T4538] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.963317][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.964981][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.966503][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.967720][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.974731][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.976329][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.977962][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.979512][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.980738][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.985562][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.988921][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.994052][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.996568][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.002975][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.004522][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.006427][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.008010][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.009443][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.014491][ T4538] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.016590][ T4538] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.022705][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.024449][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.078444][ T4538] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.080631][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.081954][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.091624][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.093450][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.102397][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.104059][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.105670][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.107044][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.114619][ T4538] device veth0_vlan entered promiscuous mode [ 68.118673][ T4538] device veth1_vlan entered promiscuous mode [ 68.129028][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.131764][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.133345][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 68.134956][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.137991][ T4538] device veth0_macvtap entered promiscuous mode [ 68.141542][ T4538] device veth1_macvtap entered promiscuous mode [ 68.147975][ T4538] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.149260][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.153664][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 68.155260][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.156858][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.172131][ T4538] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.173350][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.175117][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.178307][ T4538] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.179598][ T4538] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.183675][ T4538] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.185179][ T4538] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.274552][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.275855][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.277275][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 68.291343][ T265] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.292582][ T265] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.294130][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:08 executed programs: 0 [ 69.001083][ T4754] chnl_net:caif_netlink_parms(): no params data found [ 69.021192][ T4754] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.022428][ T4754] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.024119][ T4754] device bridge_slave_0 entered promiscuous mode [ 69.026272][ T4754] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.027430][ T4754] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.029071][ T4754] device bridge_slave_1 entered promiscuous mode [ 69.040726][ T4754] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.043492][ T4754] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.052821][ T4754] team0: Port device team_slave_0 added [ 69.055535][ T4754] team0: Port device team_slave_1 added [ 69.065566][ T4754] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 69.066592][ T4754] 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. [ 69.071022][ T4754] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 69.074697][ T4754] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 69.075788][ T4754] 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. [ 69.081686][ T4754] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 69.121357][ T4754] device hsr_slave_0 entered promiscuous mode [ 69.170398][ T4754] device hsr_slave_1 entered promiscuous mode [ 69.211577][ T4754] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.212862][ T4754] Cannot create hsr debugfs directory [ 69.251986][ T4754] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.621223][ T2062] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.622723][ T2062] ieee802154 phy1 wpan1: encryption failed: -22 [ 69.631399][ T3336] cfg80211: failed to load regulatory.db [ 70.979967][ T4181] Bluetooth: hci0: command 0x0409 tx timeout [ 71.504461][ T4754] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.059977][ T4071] Bluetooth: hci0: command 0x041b tx timeout [ 73.563768][ T4754] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.654758][ T4754] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.787991][ T4754] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.836103][ T4754] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.881187][ T4754] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.921415][ T4754] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.996971][ T4754] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.001325][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.002914][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.008597][ T4754] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.013033][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.014810][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.016357][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.017744][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.019516][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.041168][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.042991][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.044477][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.045611][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.048548][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.053458][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.056753][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.058809][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.060588][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.064822][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 74.066790][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.069785][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 74.071910][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.075263][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 74.076739][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.079299][ T4754] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.142089][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.143389][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.147453][ T4754] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.154393][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.156093][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.163337][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.164946][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.166562][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.168051][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.182146][ T4754] device veth0_vlan entered promiscuous mode [ 74.185987][ T4754] device veth1_vlan entered promiscuous mode [ 74.195586][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.197159][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.198865][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.201100][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.203759][ T4754] device veth0_macvtap entered promiscuous mode [ 74.206319][ T4754] device veth1_macvtap entered promiscuous mode [ 74.213591][ T4754] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 74.215123][ T4754] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.217331][ T4754] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.218615][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.220689][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.222243][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.223803][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.226607][ T4754] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 74.228394][ T4754] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.232136][ T4754] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.233958][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.235509][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.237875][ T4754] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.239180][ T4754] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.240955][ T4754] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.242355][ T4754] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.265813][ T265] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.268092][ T265] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.271098][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.278429][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.279662][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.282038][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:14 executed programs: 2 [ 74.404298][ T4943] loop0: detected capacity change from 0 to 32768 [ 74.454965][ T4943] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.15 (4943) [ 74.461085][ T4943] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.465537][ T4943] BTRFS info (device loop0): metadata ratio 4 [ 74.466557][ T4943] BTRFS info (device loop0): setting incompat feature flag for COMPRESS_LZO (0x8) [ 74.468213][ T4943] BTRFS info (device loop0): force lzo compression, level 0 [ 74.469455][ T4943] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 74.471625][ T4943] BTRFS info (device loop0): trying to use backup root at mount time [ 74.472974][ T4943] BTRFS info (device loop0): enabling auto defrag [ 74.474181][ T4943] BTRFS info (device loop0): setting nodatacow [ 74.475107][ T4943] BTRFS info (device loop0): disabling tree log [ 74.476209][ T4943] BTRFS info (device loop0): using free space tree [ 74.477269][ T4943] BTRFS info (device loop0): has skinny extents [ 74.485972][ T148] BTRFS warning (device loop0): checksum verify failed on 5332992 wanted 0x0a5e5d25 found 0x26333c6f level 0 [ 74.488174][ T4943] BTRFS warning (device loop0): couldn't read tree root [ 74.489582][ T9] BTRFS warning (device loop0): checksum verify failed on 5324800 wanted 0x9f73850b found 0x78ca8373 level 0 [ 74.492602][ T4943] BTRFS warning (device loop0): couldn't read tree root [ 74.494134][ T4943] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 74.495887][ T4943] BTRFS warning (device loop0): couldn't read tree root [ 74.505408][ T4943] BTRFS info (device loop0): enabling ssd optimizations [ 74.507040][ T4943] BTRFS info (device loop0): clearing free space tree [ 74.508298][ T4943] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 74.510396][ T4943] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 74.518338][ T4943] BTRFS info (device loop0): creating free space tree [ 74.520295][ T4943] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 74.521792][ T4943] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 74.528553][ T4943] FAULT_INJECTION: forcing a failure. [ 74.528553][ T4943] name failslab, interval 1, probability 0, space 0, times 1 [ 74.531783][ T4943] CPU: 1 PID: 4943 Comm: syz.0.15 Not tainted syzkaller #0 [ 74.532940][ T4943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 74.534598][ T4943] Call trace: [ 74.535150][ T4943] dump_backtrace+0x0/0x458 [ 74.535927][ T4943] show_stack+0x2c/0x3c [ 74.536604][ T4943] __dump_stack+0x30/0x40 [ 74.537359][ T4943] dump_stack_lvl+0xf4/0x15c [ 74.538086][ T4943] dump_stack+0x1c/0x5c [ 74.538754][ T4943] should_fail+0x3bc/0x514 [ 74.539430][ T4943] __should_failslab+0xbc/0x10c [ 74.540265][ T4943] should_failslab+0x10/0x28 [ 74.541114][ T4943] slab_pre_alloc_hook+0x64/0xe8 [ 74.541891][ T4943] kmem_cache_alloc+0x94/0x3d4 [ 74.542666][ T4943] btrfs_alloc_tree_block+0xa3c/0x1130 [ 74.543624][ T4943] insert_new_root+0x244/0x8a4 [ 74.544496][ T4943] split_leaf+0xa44/0x1090 [ 74.545221][ T4943] btrfs_search_slot+0x1c1c/0x1f44 [ 74.546057][ T4943] btrfs_insert_empty_items+0x1d8/0x2a0 [ 74.547014][ T4943] insert_with_overflow+0xbc/0x248 [ 74.547912][ T4943] btrfs_insert_xattr_item+0x178/0x30c [ 74.548923][ T4943] btrfs_setxattr+0x3d8/0x8bc [ 74.549788][ T4943] btrfs_setxattr_trans+0xfc/0x354 [ 74.550751][ T4943] btrfs_xattr_handler_set+0xb0/0xd8 [ 74.551697][ T4943] __vfs_setxattr+0x384/0x3a0 [ 74.552492][ T4943] __vfs_setxattr_noperm+0x120/0x564 [ 74.553408][ T4943] __vfs_setxattr_locked+0x1ec/0x218 [ 74.554295][ T4943] vfs_setxattr+0x158/0x2ac [ 74.555080][ T4943] setxattr+0x278/0x2f8 [ 74.555743][ T4943] path_setxattr+0x130/0x260 [ 74.556584][ T4943] __arm64_sys_setxattr+0xbc/0xd8 [ 74.557430][ T4943] invoke_syscall+0x98/0x2b0 [ 74.558235][ T4943] el0_svc_common+0x138/0x258 [ 74.558966][ T4943] do_el0_svc+0x58/0x13c [ 74.559737][ T4943] el0_svc+0x78/0x1d0 [ 74.560399][ T4943] el0t_64_sync_handler+0xcc/0xe4 [ 74.561242][ T4943] el0t_64_sync+0x1a0/0x1a4 [ 74.641282][ T4754] ------------[ cut here ]------------ [ 74.642198][ T4754] WARNING: CPU: 1 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 74.643938][ T4754] Modules linked in: [ 74.644602][ T4754] CPU: 1 PID: 4754 Comm: syz-executor Not tainted syzkaller #0 [ 74.645839][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 74.647511][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.648827][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 74.650016][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 74.651186][ T4754] sp : ffff80001f317740 [ 74.651883][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001a18f20c [ 74.653238][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000002 [ 74.654575][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 74.655973][ T4754] x20: ffff0000d0c79060 x19: 0000000000000000 x18: 0000000000000000 [ 74.657347][ T4754] x17: ffff800016e43000 x16: ffff8000112695d4 x15: ffff800016923540 [ 74.658729][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 74.660139][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 74.661434][ T4754] x8 : ffff0000c23db680 x7 : 0000000000000000 x6 : 0000000000000000 [ 74.662922][ T4754] x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff8000082d8840 [ 74.664314][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 74.665705][ T4754] Call trace: [ 74.666279][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 74.667461][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 74.668408][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 74.669440][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 74.670381][ T4754] close_ctree+0x618/0x834 [ 74.671143][ T4754] btrfs_put_super+0x40/0x50 [ 74.671946][ T4754] generic_shutdown_super+0x130/0x2f0 [ 74.672819][ T4754] kill_anon_super+0x4c/0x80 [ 74.673577][ T4754] btrfs_kill_super+0x40/0x58 [ 74.674397][ T4754] deactivate_locked_super+0xb8/0x134 [ 74.675297][ T4754] deactivate_super+0xf0/0x110 [ 74.676025][ T4754] cleanup_mnt+0x3b8/0x46c [ 74.676757][ T4754] __cleanup_mnt+0x20/0x30 [ 74.677528][ T4754] task_work_run+0x12c/0x1d8 [ 74.678374][ T4754] do_notify_resume+0x2450/0x309c [ 74.679162][ T4754] el0_svc+0xf0/0x1d0 [ 74.679821][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 74.680699][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 74.681484][ T4754] irq event stamp: 175556 [ 74.682172][ T4754] hardirqs last enabled at (175555): [] kasan_quarantine_put+0xc4/0x200 [ 74.683746][ T4754] hardirqs last disabled at (175556): [] el1_dbg+0x24/0x80 [ 74.685213][ T4754] softirqs last enabled at (173600): [] handle_softirqs+0xa40/0xbe4 [ 74.686779][ T4754] softirqs last disabled at (173587): [] __irq_exit_rcu+0x240/0x43c [ 74.688240][ T4754] ---[ end trace 7717f1496c0e0682 ]--- [ 74.856559][ T4967] loop0: detected capacity change from 0 to 32768 [ 74.905887][ T4967] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.16 (4967) [ 74.912417][ T4967] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.913937][ T4967] BTRFS info (device loop0): metadata ratio 4 [ 74.915049][ T4967] BTRFS info (device loop0): setting incompat feature flag for COMPRESS_LZO (0x8) [ 74.916702][ T4967] BTRFS info (device loop0): force lzo compression, level 0 [ 74.917972][ T4967] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 74.919704][ T4967] BTRFS info (device loop0): trying to use backup root at mount time [ 74.922030][ T4967] BTRFS info (device loop0): enabling auto defrag [ 74.923249][ T4967] BTRFS info (device loop0): setting nodatacow [ 74.924307][ T4967] BTRFS info (device loop0): disabling tree log [ 74.925357][ T4967] BTRFS info (device loop0): using free space tree [ 74.926437][ T4967] BTRFS info (device loop0): has skinny extents [ 74.934754][ T148] BTRFS warning (device loop0): checksum verify failed on 5332992 wanted 0x0a5e5d25 found 0x26333c6f level 0 [ 74.937031][ T4967] BTRFS warning (device loop0): couldn't read tree root [ 74.938446][ T9] BTRFS warning (device loop0): checksum verify failed on 5324800 wanted 0x9f73850b found 0x78ca8373 level 0 [ 74.940803][ T4967] BTRFS warning (device loop0): couldn't read tree root [ 74.942177][ T4967] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 74.943915][ T4967] BTRFS warning (device loop0): couldn't read tree root [ 74.947243][ T4967] BTRFS info (device loop0): enabling ssd optimizations [ 74.948719][ T4967] BTRFS info (device loop0): clearing free space tree [ 74.951628][ T4967] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 74.953176][ T4967] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 74.957790][ T4967] BTRFS info (device loop0): creating free space tree [ 74.959140][ T4967] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 74.961212][ T4967] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 74.966134][ T4967] FAULT_INJECTION: forcing a failure. [ 74.966134][ T4967] name failslab, interval 1, probability 0, space 0, times 0 [ 74.968142][ T4967] CPU: 1 PID: 4967 Comm: syz.0.16 Tainted: G W syzkaller #0 [ 74.969556][ T4967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 74.971393][ T4967] Call trace: [ 74.971899][ T4967] dump_backtrace+0x0/0x458 [ 74.972715][ T4967] show_stack+0x2c/0x3c [ 74.973435][ T4967] __dump_stack+0x30/0x40 [ 74.974202][ T4967] dump_stack_lvl+0xf4/0x15c [ 74.974995][ T4967] dump_stack+0x1c/0x5c [ 74.975761][ T4967] should_fail+0x3bc/0x514 [ 74.976445][ T4967] __should_failslab+0xbc/0x10c [ 74.977183][ T4967] should_failslab+0x10/0x28 [ 74.977967][ T4967] slab_pre_alloc_hook+0x64/0xe8 [ 74.978843][ T4967] kmem_cache_alloc+0x94/0x3d4 [ 74.979641][ T4967] btrfs_alloc_tree_block+0xa3c/0x1130 [ 74.980528][ T4967] insert_new_root+0x244/0x8a4 [ 74.981312][ T4967] split_leaf+0xa44/0x1090 [ 74.982012][ T4967] btrfs_search_slot+0x1c1c/0x1f44 [ 74.982826][ T4967] btrfs_insert_empty_items+0x1d8/0x2a0 [ 74.983819][ T4967] insert_with_overflow+0xbc/0x248 [ 74.984701][ T4967] btrfs_insert_xattr_item+0x178/0x30c [ 74.985678][ T4967] btrfs_setxattr+0x3d8/0x8bc [ 74.986487][ T4967] btrfs_setxattr_trans+0xfc/0x354 [ 74.987367][ T4967] btrfs_xattr_handler_set+0xb0/0xd8 [ 74.988250][ T4967] __vfs_setxattr+0x384/0x3a0 [ 74.989032][ T4967] __vfs_setxattr_noperm+0x120/0x564 [ 74.989952][ T4967] __vfs_setxattr_locked+0x1ec/0x218 [ 74.990867][ T4967] vfs_setxattr+0x158/0x2ac [ 74.991600][ T4967] setxattr+0x278/0x2f8 [ 74.992353][ T4967] path_setxattr+0x130/0x260 [ 74.993165][ T4967] __arm64_sys_setxattr+0xbc/0xd8 [ 74.993976][ T4967] invoke_syscall+0x98/0x2b0 [ 74.994750][ T4967] el0_svc_common+0x138/0x258 [ 74.995536][ T4967] do_el0_svc+0x58/0x13c [ 74.996324][ T4967] el0_svc+0x78/0x1d0 [ 74.996992][ T4967] el0t_64_sync_handler+0xcc/0xe4 [ 74.997841][ T4967] el0t_64_sync+0x1a0/0x1a4 [ 75.045129][ T4754] ------------[ cut here ]------------ [ 75.046036][ T4754] WARNING: CPU: 1 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 75.048069][ T4754] Modules linked in: [ 75.048696][ T4754] CPU: 1 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 75.050137][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 75.051857][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.053159][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 75.054322][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 75.055528][ T4754] sp : ffff80001f317740 [ 75.056271][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001acbb40c [ 75.057660][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000002 [ 75.059044][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 75.060280][ T4754] x20: ffff0000d65da060 x19: 0000000000000000 x18: 0000000000000000 [ 75.061752][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 75.063050][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 75.064357][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 75.065712][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 75.067144][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 75.068700][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 75.070164][ T4754] Call trace: [ 75.070775][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 75.071901][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 75.072751][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 75.073747][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 75.074669][ T4754] close_ctree+0x618/0x834 [ 75.075448][ T4754] btrfs_put_super+0x40/0x50 [ 75.076267][ T4754] generic_shutdown_super+0x130/0x2f0 [ 75.077204][ T4754] kill_anon_super+0x4c/0x80 [ 75.077971][ T4754] btrfs_kill_super+0x40/0x58 [ 75.078783][ T4754] deactivate_locked_super+0xb8/0x134 [ 75.079722][ T4754] deactivate_super+0xf0/0x110 [ 75.080518][ T4754] cleanup_mnt+0x3b8/0x46c [ 75.081218][ T4754] __cleanup_mnt+0x20/0x30 [ 75.081959][ T4754] task_work_run+0x12c/0x1d8 [ 75.082723][ T4754] do_notify_resume+0x2450/0x309c [ 75.083582][ T4754] el0_svc+0xf0/0x1d0 [ 75.084250][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 75.085127][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 75.085876][ T4754] irq event stamp: 202804 [ 75.086546][ T4754] hardirqs last enabled at (202803): [] kasan_quarantine_put+0xc4/0x200 [ 75.088391][ T4754] hardirqs last disabled at (202804): [] el1_dbg+0x24/0x80 [ 75.089816][ T4754] softirqs last enabled at (200392): [] local_bh_enable+0x10/0x34 [ 75.091422][ T4754] softirqs last disabled at (200390): [] local_bh_disable+0x10/0x34 [ 75.092938][ T4754] ---[ end trace 7717f1496c0e0683 ]--- [ 75.140533][ T3623] Bluetooth: hci0: command 0x040f tx timeout [ 75.271745][ T4991] loop0: detected capacity change from 0 to 32768 [ 75.361009][ T4991] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.17 (4991) [ 75.410094][ T4991] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.411675][ T4991] BTRFS info (device loop0): metadata ratio 4 [ 75.412696][ T4991] BTRFS info (device loop0): setting incompat feature flag for COMPRESS_LZO (0x8) [ 75.414445][ T4991] BTRFS info (device loop0): force lzo compression, level 0 [ 75.415754][ T4991] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 75.417621][ T4991] BTRFS info (device loop0): trying to use backup root at mount time [ 75.419037][ T4991] BTRFS info (device loop0): enabling auto defrag [ 75.420225][ T4991] BTRFS info (device loop0): setting nodatacow [ 75.421240][ T4991] BTRFS info (device loop0): disabling tree log [ 75.422257][ T4991] BTRFS info (device loop0): using free space tree [ 75.423379][ T4991] BTRFS info (device loop0): has skinny extents [ 75.430526][ T9] BTRFS warning (device loop0): checksum verify failed on 5332992 wanted 0x0a5e5d25 found 0x26333c6f level 0 [ 75.432810][ T4991] BTRFS warning (device loop0): couldn't read tree root [ 75.434177][ T265] BTRFS warning (device loop0): checksum verify failed on 5324800 wanted 0x9f73850b found 0x78ca8373 level 0 [ 75.436430][ T4991] BTRFS warning (device loop0): couldn't read tree root [ 75.437833][ T4991] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 75.439561][ T4991] BTRFS warning (device loop0): couldn't read tree root [ 75.444509][ T4991] BTRFS info (device loop0): enabling ssd optimizations [ 75.445972][ T4991] BTRFS info (device loop0): clearing free space tree [ 75.447391][ T4991] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 75.449121][ T4991] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 75.453577][ T4991] BTRFS info (device loop0): creating free space tree [ 75.454931][ T4991] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 75.456680][ T4991] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 75.463017][ T4991] FAULT_INJECTION: forcing a failure. [ 75.463017][ T4991] name failslab, interval 1, probability 0, space 0, times 0 [ 75.465175][ T4991] CPU: 1 PID: 4991 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 75.466602][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 75.468270][ T4991] Call trace: [ 75.468828][ T4991] dump_backtrace+0x0/0x458 [ 75.469596][ T4991] show_stack+0x2c/0x3c [ 75.470268][ T4991] __dump_stack+0x30/0x40 [ 75.471043][ T4991] dump_stack_lvl+0xf4/0x15c [ 75.471826][ T4991] dump_stack+0x1c/0x5c [ 75.472546][ T4991] should_fail+0x3bc/0x514 [ 75.473323][ T4991] __should_failslab+0xbc/0x10c [ 75.474117][ T4991] should_failslab+0x10/0x28 [ 75.474902][ T4991] slab_pre_alloc_hook+0x64/0xe8 [ 75.475779][ T4991] kmem_cache_alloc+0x94/0x3d4 [ 75.476643][ T4991] btrfs_alloc_tree_block+0xa3c/0x1130 [ 75.477645][ T4991] insert_new_root+0x244/0x8a4 [ 75.478520][ T4991] split_leaf+0xa44/0x1090 [ 75.479355][ T4991] btrfs_search_slot+0x1c1c/0x1f44 [ 75.480225][ T4991] btrfs_insert_empty_items+0x1d8/0x2a0 [ 75.481206][ T4991] insert_with_overflow+0xbc/0x248 [ 75.482090][ T4991] btrfs_insert_xattr_item+0x178/0x30c [ 75.483006][ T4991] btrfs_setxattr+0x3d8/0x8bc [ 75.483859][ T4991] btrfs_setxattr_trans+0xfc/0x354 [ 75.484727][ T4991] btrfs_xattr_handler_set+0xb0/0xd8 [ 75.485622][ T4991] __vfs_setxattr+0x384/0x3a0 [ 75.486391][ T4991] __vfs_setxattr_noperm+0x120/0x564 [ 75.487323][ T4991] __vfs_setxattr_locked+0x1ec/0x218 [ 75.488202][ T4991] vfs_setxattr+0x158/0x2ac [ 75.488925][ T4991] setxattr+0x278/0x2f8 [ 75.489603][ T4991] path_setxattr+0x130/0x260 [ 75.490375][ T4991] __arm64_sys_setxattr+0xbc/0xd8 [ 75.491161][ T4991] invoke_syscall+0x98/0x2b0 [ 75.491945][ T4991] el0_svc_common+0x138/0x258 [ 75.492760][ T4991] do_el0_svc+0x58/0x13c [ 75.493529][ T4991] el0_svc+0x78/0x1d0 [ 75.494213][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 75.495075][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 75.529490][ T4754] ------------[ cut here ]------------ [ 75.530390][ T4754] WARNING: CPU: 1 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 75.532407][ T4754] Modules linked in: [ 75.533040][ T4754] CPU: 1 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 75.534573][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 75.536372][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.537712][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 75.538912][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 75.540193][ T4754] sp : ffff80001f317740 [ 75.540931][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001aeb0d0c [ 75.542421][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000002 [ 75.543735][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 75.545238][ T4754] x20: ffff0000d7586860 x19: 0000000000000000 x18: 0000000000000000 [ 75.546725][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 75.548195][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 75.549635][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 75.550985][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 75.552374][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 75.553808][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 75.555203][ T4754] Call trace: [ 75.555777][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 75.556957][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 75.557845][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 75.558893][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 75.559880][ T4754] close_ctree+0x618/0x834 [ 75.560618][ T4754] btrfs_put_super+0x40/0x50 [ 75.561462][ T4754] generic_shutdown_super+0x130/0x2f0 [ 75.562432][ T4754] kill_anon_super+0x4c/0x80 [ 75.563209][ T4754] btrfs_kill_super+0x40/0x58 [ 75.563991][ T4754] deactivate_locked_super+0xb8/0x134 [ 75.564970][ T4754] deactivate_super+0xf0/0x110 [ 75.565818][ T4754] cleanup_mnt+0x3b8/0x46c [ 75.566638][ T4754] __cleanup_mnt+0x20/0x30 [ 75.567374][ T4754] task_work_run+0x12c/0x1d8 [ 75.568182][ T4754] do_notify_resume+0x2450/0x309c [ 75.569037][ T4754] el0_svc+0xf0/0x1d0 [ 75.569702][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 75.570597][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 75.571364][ T4754] irq event stamp: 229496 [ 75.572091][ T4754] hardirqs last enabled at (229495): [] kasan_quarantine_put+0xc4/0x200 [ 75.573824][ T4754] hardirqs last disabled at (229496): [] el1_dbg+0x24/0x80 [ 75.575266][ T4754] softirqs last enabled at (226954): [] local_bh_enable+0x10/0x34 [ 75.576807][ T4754] softirqs last disabled at (226952): [] local_bh_disable+0x10/0x34 [ 75.578498][ T4754] ---[ end trace 7717f1496c0e0684 ]--- [ 75.745352][ T5017] loop0: detected capacity change from 0 to 32768 [ 75.754491][ T5017] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.18 (5017) [ 75.759460][ T5017] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.761506][ T5017] BTRFS info (device loop0): metadata ratio 4 [ 75.762543][ T5017] BTRFS info (device loop0): setting incompat feature flag for COMPRESS_LZO (0x8) [ 75.764089][ T5017] BTRFS info (device loop0): force lzo compression, level 0 [ 75.765497][ T5017] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 75.767364][ T5017] BTRFS info (device loop0): trying to use backup root at mount time [ 75.768690][ T5017] BTRFS info (device loop0): enabling auto defrag [ 75.769728][ T5017] BTRFS info (device loop0): setting nodatacow [ 75.771392][ T5017] BTRFS info (device loop0): disabling tree log [ 75.772399][ T5017] BTRFS info (device loop0): using free space tree [ 75.773443][ T5017] BTRFS info (device loop0): has skinny extents [ 75.779115][ T9] BTRFS warning (device loop0): checksum verify failed on 5332992 wanted 0x0a5e5d25 found 0x26333c6f level 0 [ 75.783650][ T5017] BTRFS warning (device loop0): couldn't read tree root [ 75.785011][ T9] BTRFS warning (device loop0): checksum verify failed on 5324800 wanted 0x9f73850b found 0x78ca8373 level 0 [ 75.787335][ T5017] BTRFS warning (device loop0): couldn't read tree root [ 75.788823][ T5017] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 75.790959][ T5017] BTRFS warning (device loop0): couldn't read tree root [ 75.794365][ T5017] BTRFS info (device loop0): enabling ssd optimizations [ 75.795741][ T5017] BTRFS info (device loop0): clearing free space tree [ 75.797154][ T5017] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 75.798882][ T5017] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 75.805419][ T5017] BTRFS info (device loop0): creating free space tree [ 75.806848][ T5017] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 75.808395][ T5017] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 75.813200][ T5017] FAULT_INJECTION: forcing a failure. [ 75.813200][ T5017] name failslab, interval 1, probability 0, space 0, times 0 [ 75.815529][ T5017] CPU: 1 PID: 5017 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 75.817010][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 75.818697][ T5017] Call trace: [ 75.819263][ T5017] dump_backtrace+0x0/0x458 [ 75.820079][ T5017] show_stack+0x2c/0x3c [ 75.820796][ T5017] __dump_stack+0x30/0x40 [ 75.821540][ T5017] dump_stack_lvl+0xf4/0x15c [ 75.822379][ T5017] dump_stack+0x1c/0x5c [ 75.823034][ T5017] should_fail+0x3bc/0x514 [ 75.823810][ T5017] __should_failslab+0xbc/0x10c [ 75.824716][ T5017] should_failslab+0x10/0x28 [ 75.825471][ T5017] slab_pre_alloc_hook+0x64/0xe8 [ 75.826309][ T5017] kmem_cache_alloc+0x94/0x3d4 [ 75.827132][ T5017] btrfs_alloc_path+0x5c/0x68 [ 75.827892][ T5017] btrfs_setxattr+0xd4/0x8bc [ 75.828737][ T5017] btrfs_setxattr_trans+0xfc/0x354 [ 75.829673][ T5017] btrfs_xattr_handler_set+0xb0/0xd8 [ 75.830518][ T5017] __vfs_setxattr+0x384/0x3a0 [ 75.831289][ T5017] __vfs_setxattr_noperm+0x120/0x564 [ 75.832129][ T5017] __vfs_setxattr_locked+0x1ec/0x218 [ 75.832997][ T5017] vfs_setxattr+0x158/0x2ac [ 75.833802][ T5017] setxattr+0x278/0x2f8 [ 75.834506][ T5017] path_setxattr+0x130/0x260 [ 75.835358][ T5017] __arm64_sys_setxattr+0xbc/0xd8 [ 75.836280][ T5017] invoke_syscall+0x98/0x2b0 [ 75.837064][ T5017] el0_svc_common+0x138/0x258 [ 75.837953][ T5017] do_el0_svc+0x58/0x13c [ 75.838678][ T5017] el0_svc+0x78/0x1d0 [ 75.839412][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 75.840202][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 76.007923][ T5040] loop0: detected capacity change from 0 to 32768 [ 76.031525][ T5040] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.19 (5040) [ 76.034769][ T5040] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.036148][ T5040] BTRFS info (device loop0): metadata ratio 4 [ 76.037218][ T5040] BTRFS info (device loop0): setting incompat feature flag for COMPRESS_LZO (0x8) [ 76.038994][ T5040] BTRFS info (device loop0): force lzo compression, level 0 [ 76.041015][ T5040] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 76.042751][ T5040] BTRFS info (device loop0): trying to use backup root at mount time [ 76.044118][ T5040] BTRFS info (device loop0): enabling auto defrag [ 76.045272][ T5040] BTRFS info (device loop0): setting nodatacow [ 76.046297][ T5040] BTRFS info (device loop0): disabling tree log [ 76.047418][ T5040] BTRFS info (device loop0): using free space tree [ 76.048498][ T5040] BTRFS info (device loop0): has skinny extents [ 76.055155][ T9] BTRFS warning (device loop0): checksum verify failed on 5332992 wanted 0x0a5e5d25 found 0x26333c6f level 0 [ 76.057020][ T5040] BTRFS warning (device loop0): couldn't read tree root [ 76.058332][ T148] BTRFS warning (device loop0): checksum verify failed on 5324800 wanted 0x9f73850b found 0x78ca8373 level 0 [ 76.061790][ T5040] BTRFS warning (device loop0): couldn't read tree root [ 76.063150][ T5040] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 76.064776][ T5040] BTRFS warning (device loop0): couldn't read tree root [ 76.068174][ T5040] BTRFS info (device loop0): enabling ssd optimizations [ 76.069502][ T5040] BTRFS info (device loop0): clearing free space tree [ 76.071367][ T5040] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 76.073009][ T5040] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 76.076803][ T5040] BTRFS info (device loop0): creating free space tree [ 76.078220][ T5040] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 76.079791][ T5040] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 76.085307][ T5040] FAULT_INJECTION: forcing a failure. [ 76.085307][ T5040] name failslab, interval 1, probability 0, space 0, times 0 [ 76.087365][ T5040] CPU: 1 PID: 5040 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 76.088821][ T5040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 76.090480][ T5040] Call trace: [ 76.091061][ T5040] dump_backtrace+0x0/0x458 [ 76.091849][ T5040] show_stack+0x2c/0x3c [ 76.092559][ T5040] __dump_stack+0x30/0x40 [ 76.093353][ T5040] dump_stack_lvl+0xf4/0x15c [ 76.094226][ T5040] dump_stack+0x1c/0x5c [ 76.094927][ T5040] should_fail+0x3bc/0x514 [ 76.095671][ T5040] __should_failslab+0xbc/0x10c [ 76.096551][ T5040] should_failslab+0x10/0x28 [ 76.097413][ T5040] slab_pre_alloc_hook+0x64/0xe8 [ 76.098211][ T5040] kmem_cache_alloc+0x94/0x3d4 [ 76.098969][ T5040] btrfs_alloc_tree_block+0xa3c/0x1130 [ 76.099933][ T5040] insert_new_root+0x244/0x8a4 [ 76.100735][ T5040] split_leaf+0xa44/0x1090 [ 76.101473][ T5040] btrfs_search_slot+0x1c1c/0x1f44 [ 76.102382][ T5040] btrfs_insert_empty_items+0x1d8/0x2a0 [ 76.103345][ T5040] insert_with_overflow+0xbc/0x248 [ 76.104187][ T5040] btrfs_insert_xattr_item+0x178/0x30c [ 76.105098][ T5040] btrfs_setxattr+0x3d8/0x8bc [ 76.105882][ T5040] btrfs_setxattr_trans+0xfc/0x354 [ 76.106772][ T5040] btrfs_xattr_handler_set+0xb0/0xd8 [ 76.107688][ T5040] __vfs_setxattr+0x384/0x3a0 [ 76.108459][ T5040] __vfs_setxattr_noperm+0x120/0x564 [ 76.109396][ T5040] __vfs_setxattr_locked+0x1ec/0x218 [ 76.110404][ T5040] vfs_setxattr+0x158/0x2ac [ 76.111234][ T5040] setxattr+0x278/0x2f8 [ 76.111974][ T5040] path_setxattr+0x130/0x260 [ 76.112820][ T5040] __arm64_sys_setxattr+0xbc/0xd8 [ 76.113658][ T5040] invoke_syscall+0x98/0x2b0 [ 76.114409][ T5040] el0_svc_common+0x138/0x258 [ 76.115142][ T5040] do_el0_svc+0x58/0x13c [ 76.115865][ T5040] el0_svc+0x78/0x1d0 [ 76.116622][ T5040] el0t_64_sync_handler+0xcc/0xe4 [ 76.117432][ T5040] el0t_64_sync+0x1a0/0x1a4 [ 76.153647][ T4754] ------------[ cut here ]------------ [ 76.154525][ T4754] WARNING: CPU: 1 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 76.156230][ T4754] Modules linked in: [ 76.156835][ T4754] CPU: 1 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 76.158181][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 76.159734][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.161106][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 76.162180][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 76.163338][ T4754] sp : ffff80001f317740 [ 76.164016][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001a781d0c [ 76.165258][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000002 [ 76.166571][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 76.167958][ T4754] x20: ffff0000d3c0e860 x19: 0000000000000000 x18: 0000000000000000 [ 76.169314][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 76.170819][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 76.172234][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 76.173670][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 76.175047][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 76.176507][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 76.177964][ T4754] Call trace: [ 76.178541][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 76.179658][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 76.180612][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 76.181643][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 76.182602][ T4754] close_ctree+0x618/0x834 [ 76.183353][ T4754] btrfs_put_super+0x40/0x50 [ 76.184162][ T4754] generic_shutdown_super+0x130/0x2f0 [ 76.185155][ T4754] kill_anon_super+0x4c/0x80 [ 76.185939][ T4754] btrfs_kill_super+0x40/0x58 [ 76.186719][ T4754] deactivate_locked_super+0xb8/0x134 [ 76.187667][ T4754] deactivate_super+0xf0/0x110 [ 76.188492][ T4754] cleanup_mnt+0x3b8/0x46c [ 76.189206][ T4754] __cleanup_mnt+0x20/0x30 [ 76.189982][ T4754] task_work_run+0x12c/0x1d8 [ 76.190748][ T4754] do_notify_resume+0x2450/0x309c [ 76.191651][ T4754] el0_svc+0xf0/0x1d0 [ 76.192326][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 76.193145][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 76.193905][ T4754] irq event stamp: 264286 [ 76.194540][ T4754] hardirqs last enabled at (264285): [] kasan_quarantine_put+0xc4/0x200 [ 76.196111][ T4754] hardirqs last disabled at (264286): [] el1_dbg+0x24/0x80 [ 76.197519][ T4754] softirqs last enabled at (261454): [] local_bh_enable+0x10/0x34 [ 76.199250][ T4754] softirqs last disabled at (261452): [] local_bh_disable+0x10/0x34 [ 76.200905][ T4754] ---[ end trace 7717f1496c0e0685 ]--- [ 76.315614][ T5063] loop0: detected capacity change from 0 to 32768 [ 76.356320][ T5063] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.20 (5063) [ 76.362136][ T5063] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.363700][ T5063] BTRFS info (device loop0): metadata ratio 4 [ 76.364781][ T5063] BTRFS info (device loop0): setting incompat feature flag for COMPRESS_LZO (0x8) [ 76.366309][ T5063] BTRFS info (device loop0): force lzo compression, level 0 [ 76.367545][ T5063] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 76.369528][ T5063] BTRFS info (device loop0): trying to use backup root at mount time [ 76.371044][ T5063] BTRFS info (device loop0): enabling auto defrag [ 76.372091][ T5063] BTRFS info (device loop0): setting nodatacow [ 76.373164][ T5063] BTRFS info (device loop0): disabling tree log [ 76.374292][ T5063] BTRFS info (device loop0): using free space tree [ 76.375439][ T5063] BTRFS info (device loop0): has skinny extents [ 76.381481][ T5063] BTRFS warning (device loop0): couldn't read tree root [ 76.382823][ T5063] BTRFS warning (device loop0): couldn't read tree root [ 76.384248][ T5063] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 76.385867][ T5063] BTRFS warning (device loop0): couldn't read tree root [ 76.391748][ T5063] BTRFS info (device loop0): enabling ssd optimizations [ 76.393426][ T5063] BTRFS info (device loop0): clearing free space tree [ 76.394507][ T5063] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 76.396156][ T5063] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 76.400418][ T5063] BTRFS info (device loop0): creating free space tree [ 76.405489][ T5063] FAULT_INJECTION: forcing a failure. [ 76.405489][ T5063] name failslab, interval 1, probability 0, space 0, times 0 [ 76.407643][ T5063] CPU: 1 PID: 5063 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 76.409068][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 76.410856][ T5063] Call trace: [ 76.411516][ T5063] dump_backtrace+0x0/0x458 [ 76.412275][ T5063] show_stack+0x2c/0x3c [ 76.413016][ T5063] __dump_stack+0x30/0x40 [ 76.413719][ T5063] dump_stack_lvl+0xf4/0x15c [ 76.414544][ T5063] dump_stack+0x1c/0x5c [ 76.415299][ T5063] should_fail+0x3bc/0x514 [ 76.416136][ T5063] __should_failslab+0xbc/0x10c [ 76.416972][ T5063] should_failslab+0x10/0x28 [ 76.417723][ T5063] slab_pre_alloc_hook+0x64/0xe8 [ 76.418591][ T5063] kmem_cache_alloc+0x94/0x3d4 [ 76.419452][ T5063] btrfs_alloc_tree_block+0xa3c/0x1130 [ 76.420482][ T5063] insert_new_root+0x244/0x8a4 [ 76.421266][ T5063] split_leaf+0xa44/0x1090 [ 76.422063][ T5063] btrfs_search_slot+0x1c1c/0x1f44 [ 76.422911][ T5063] btrfs_insert_empty_items+0x1d8/0x2a0 [ 76.423853][ T5063] insert_with_overflow+0xbc/0x248 [ 76.424745][ T5063] btrfs_insert_xattr_item+0x178/0x30c [ 76.425733][ T5063] btrfs_setxattr+0x3d8/0x8bc [ 76.426558][ T5063] btrfs_setxattr_trans+0xfc/0x354 [ 76.427402][ T5063] btrfs_xattr_handler_set+0xb0/0xd8 [ 76.428255][ T5063] __vfs_setxattr+0x384/0x3a0 [ 76.429022][ T5063] __vfs_setxattr_noperm+0x120/0x564 [ 76.429957][ T5063] __vfs_setxattr_locked+0x1ec/0x218 [ 76.430776][ T5063] vfs_setxattr+0x158/0x2ac [ 76.431454][ T5063] setxattr+0x278/0x2f8 [ 76.432106][ T5063] path_setxattr+0x130/0x260 [ 76.432875][ T5063] __arm64_sys_setxattr+0xbc/0xd8 [ 76.433594][ T5063] invoke_syscall+0x98/0x2b0 [ 76.434336][ T5063] el0_svc_common+0x138/0x258 [ 76.435111][ T5063] do_el0_svc+0x58/0x13c [ 76.435871][ T5063] el0_svc+0x78/0x1d0 [ 76.436548][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 76.437342][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 76.476551][ T4754] ------------[ cut here ]------------ [ 76.477550][ T4754] WARNING: CPU: 1 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 76.479439][ T4754] Modules linked in: [ 76.480054][ T4754] CPU: 1 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 76.481437][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 76.483223][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.484707][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 76.485910][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 76.487090][ T4754] sp : ffff80001f317740 [ 76.487874][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001b9f2d0c [ 76.489280][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000002 [ 76.490682][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 76.492011][ T4754] x20: ffff0000dcf96860 x19: 0000000000000000 x18: 0000000000000000 [ 76.493514][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 76.494884][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 76.496176][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 76.497554][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 76.498931][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 76.500328][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 76.501758][ T4754] Call trace: [ 76.502326][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 76.503471][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 76.504366][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 76.505401][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 76.506288][ T4754] close_ctree+0x618/0x834 [ 76.507064][ T4754] btrfs_put_super+0x40/0x50 [ 76.507966][ T4754] generic_shutdown_super+0x130/0x2f0 [ 76.508957][ T4754] kill_anon_super+0x4c/0x80 [ 76.509729][ T4754] btrfs_kill_super+0x40/0x58 [ 76.510515][ T4754] deactivate_locked_super+0xb8/0x134 [ 76.511545][ T4754] deactivate_super+0xf0/0x110 [ 76.512376][ T4754] cleanup_mnt+0x3b8/0x46c [ 76.513151][ T4754] __cleanup_mnt+0x20/0x30 [ 76.513917][ T4754] task_work_run+0x12c/0x1d8 [ 76.514668][ T4754] do_notify_resume+0x2450/0x309c [ 76.515499][ T4754] el0_svc+0xf0/0x1d0 [ 76.516174][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 76.516990][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 76.517732][ T4754] irq event stamp: 272430 [ 76.518515][ T4754] hardirqs last enabled at (272429): [] kasan_quarantine_put+0xc4/0x200 [ 76.520101][ T4754] hardirqs last disabled at (272430): [] el1_dbg+0x24/0x80 [ 76.521581][ T4754] softirqs last enabled at (269562): [] local_bh_enable+0x10/0x34 [ 76.523183][ T4754] softirqs last disabled at (269560): [] local_bh_disable+0x10/0x34 [ 76.524784][ T4754] ---[ end trace 7717f1496c0e0686 ]--- [ 76.687579][ T5085] loop0: detected capacity change from 0 to 32768 [ 76.754579][ T5085] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.21 (5085) [ 76.762096][ T5085] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 76.781129][ T5085] BTRFS warning (device loop0): couldn't read tree root [ 76.782454][ T5085] BTRFS warning (device loop0): couldn't read tree root [ 76.783752][ T5085] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 76.785379][ T5085] BTRFS warning (device loop0): couldn't read tree root [ 76.816233][ T5085] FAULT_INJECTION: forcing a failure. [ 76.816233][ T5085] name failslab, interval 1, probability 0, space 0, times 0 [ 76.818338][ T5085] CPU: 1 PID: 5085 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 76.819748][ T5085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 76.821572][ T5085] Call trace: [ 76.822127][ T5085] dump_backtrace+0x0/0x458 [ 76.822922][ T5085] show_stack+0x2c/0x3c [ 76.823609][ T5085] __dump_stack+0x30/0x40 [ 76.824309][ T5085] dump_stack_lvl+0xf4/0x15c [ 76.825098][ T5085] dump_stack+0x1c/0x5c [ 76.825843][ T5085] should_fail+0x3bc/0x514 [ 76.826609][ T5085] __should_failslab+0xbc/0x10c [ 76.827423][ T5085] should_failslab+0x10/0x28 [ 76.828149][ T5085] slab_pre_alloc_hook+0x64/0xe8 [ 76.828983][ T5085] kmem_cache_alloc+0x94/0x3d4 [ 76.829856][ T5085] btrfs_alloc_tree_block+0xa3c/0x1130 [ 76.830835][ T5085] insert_new_root+0x244/0x8a4 [ 76.831683][ T5085] split_leaf+0xa44/0x1090 [ 76.832443][ T5085] btrfs_search_slot+0x1c1c/0x1f44 [ 76.833335][ T5085] btrfs_insert_empty_items+0x1d8/0x2a0 [ 76.834275][ T5085] insert_with_overflow+0xbc/0x248 [ 76.835205][ T5085] btrfs_insert_xattr_item+0x178/0x30c [ 76.836117][ T5085] btrfs_setxattr+0x3d8/0x8bc [ 76.836915][ T5085] btrfs_setxattr_trans+0xfc/0x354 [ 76.837761][ T5085] btrfs_xattr_handler_set+0xb0/0xd8 [ 76.838713][ T5085] __vfs_setxattr+0x384/0x3a0 [ 76.839569][ T5085] __vfs_setxattr_noperm+0x120/0x564 [ 76.840459][ T5085] __vfs_setxattr_locked+0x1ec/0x218 [ 76.841356][ T5085] vfs_setxattr+0x158/0x2ac [ 76.842154][ T5085] setxattr+0x278/0x2f8 [ 76.842817][ T5085] path_setxattr+0x130/0x260 [ 76.843631][ T5085] __arm64_sys_setxattr+0xbc/0xd8 [ 76.844545][ T5085] invoke_syscall+0x98/0x2b0 [ 76.845330][ T5085] el0_svc_common+0x138/0x258 [ 76.846169][ T5085] do_el0_svc+0x58/0x13c [ 76.846890][ T5085] el0_svc+0x78/0x1d0 [ 76.847560][ T5085] el0t_64_sync_handler+0xcc/0xe4 [ 76.848415][ T5085] el0t_64_sync+0x1a0/0x1a4 [ 76.904251][ T4754] ------------[ cut here ]------------ [ 76.905151][ T4754] WARNING: CPU: 1 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 76.907108][ T4754] Modules linked in: [ 76.907750][ T4754] CPU: 1 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 76.909175][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 76.910855][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.912156][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 76.913390][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 76.914571][ T4754] sp : ffff80001f317740 [ 76.915291][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001a7d6c0c [ 76.916635][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000002 [ 76.917973][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 76.919311][ T4754] x20: ffff0000d3eb6060 x19: 0000000000000000 x18: 0000000000000000 [ 76.920697][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 76.921991][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 76.923263][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 76.924644][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 76.926118][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 76.927505][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 76.928949][ T4754] Call trace: [ 76.929515][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 76.930601][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 76.931535][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 76.932559][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 76.933489][ T4754] close_ctree+0x618/0x834 [ 76.934201][ T4754] btrfs_put_super+0x40/0x50 [ 76.934937][ T4754] generic_shutdown_super+0x130/0x2f0 [ 76.935856][ T4754] kill_anon_super+0x4c/0x80 [ 76.936650][ T4754] btrfs_kill_super+0x40/0x58 [ 76.937401][ T4754] deactivate_locked_super+0xb8/0x134 [ 76.938279][ T4754] deactivate_super+0xf0/0x110 [ 76.939058][ T4754] cleanup_mnt+0x3b8/0x46c [ 76.939820][ T4754] __cleanup_mnt+0x20/0x30 [ 76.940515][ T4754] task_work_run+0x12c/0x1d8 [ 76.941245][ T4754] do_notify_resume+0x2450/0x309c [ 76.942131][ T4754] el0_svc+0xf0/0x1d0 [ 76.942858][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 76.943720][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 76.944567][ T4754] irq event stamp: 298400 [ 76.945363][ T4754] hardirqs last enabled at (298399): [] kasan_quarantine_put+0xc4/0x200 [ 76.947016][ T4754] hardirqs last disabled at (298400): [] el1_dbg+0x24/0x80 [ 76.948589][ T4754] softirqs last enabled at (295892): [] handle_softirqs+0xa40/0xbe4 [ 76.950184][ T4754] softirqs last disabled at (295877): [] __irq_exit_rcu+0x240/0x43c [ 76.951943][ T4754] ---[ end trace 7717f1496c0e0687 ]--- [ 77.086325][ T1606] device hsr_slave_0 left promiscuous mode [ 77.121191][ T1606] device hsr_slave_1 left promiscuous mode [ 77.151303][ T5108] loop0: detected capacity change from 0 to 32768 [ 77.156338][ T5108] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.22 (5108) [ 77.160268][ T5108] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 77.167536][ T5108] BTRFS warning (device loop0): couldn't read tree root [ 77.169481][ T5108] BTRFS warning (device loop0): couldn't read tree root [ 77.179552][ T5108] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 77.181501][ T5108] BTRFS warning (device loop0): couldn't read tree root [ 77.195236][ T5108] FAULT_INJECTION: forcing a failure. [ 77.195236][ T5108] name failslab, interval 1, probability 0, space 0, times 0 [ 77.197396][ T5108] CPU: 0 PID: 5108 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 77.198849][ T5108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 77.200097][ T1606] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 77.200554][ T5108] Call trace: [ 77.201820][ T1606] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 77.202243][ T5108] dump_backtrace+0x0/0x458 [ 77.204131][ T5108] show_stack+0x2c/0x3c [ 77.204829][ T5108] __dump_stack+0x30/0x40 [ 77.205581][ T5108] dump_stack_lvl+0xf4/0x15c [ 77.206354][ T5108] dump_stack+0x1c/0x5c [ 77.207005][ T5108] should_fail+0x3bc/0x514 [ 77.207726][ T5108] __should_failslab+0xbc/0x10c [ 77.208569][ T5108] should_failslab+0x10/0x28 [ 77.209428][ T5108] slab_pre_alloc_hook+0x64/0xe8 [ 77.210340][ T5108] kmem_cache_alloc+0x94/0x3d4 [ 77.211152][ T5108] btrfs_alloc_tree_block+0xa3c/0x1130 [ 77.212085][ T5108] insert_new_root+0x244/0x8a4 [ 77.212855][ T5108] split_leaf+0xa44/0x1090 [ 77.213660][ T5108] btrfs_search_slot+0x1c1c/0x1f44 [ 77.214554][ T5108] btrfs_insert_empty_items+0x1d8/0x2a0 [ 77.215465][ T5108] insert_with_overflow+0xbc/0x248 [ 77.216302][ T5108] btrfs_insert_xattr_item+0x178/0x30c [ 77.217263][ T5108] btrfs_setxattr+0x3d8/0x8bc [ 77.218033][ T5108] btrfs_setxattr_trans+0xfc/0x354 [ 77.218956][ T5108] btrfs_xattr_handler_set+0xb0/0xd8 [ 77.219853][ T5108] __vfs_setxattr+0x384/0x3a0 [ 77.220623][ T5108] __vfs_setxattr_noperm+0x120/0x564 [ 77.221511][ T5108] __vfs_setxattr_locked+0x1ec/0x218 [ 77.222501][ T5108] vfs_setxattr+0x158/0x2ac [ 77.223200][ T5108] setxattr+0x278/0x2f8 [ 77.223894][ T5108] path_setxattr+0x130/0x260 [ 77.224628][ T5108] __arm64_sys_setxattr+0xbc/0xd8 [ 77.225491][ T5108] invoke_syscall+0x98/0x2b0 [ 77.226325][ T5108] el0_svc_common+0x138/0x258 [ 77.227220][ T5108] do_el0_svc+0x58/0x13c [ 77.228011][ T5108] el0_svc+0x78/0x1d0 [ 77.228773][ T5108] el0t_64_sync_handler+0xcc/0xe4 [ 77.229691][ T5108] el0t_64_sync+0x1a0/0x1a4 [ 77.234899][ T1606] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 77.236418][ T1606] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 77.237898][ T1606] device bridge_slave_1 left promiscuous mode [ 77.238986][ T1606] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.240647][ T25] Bluetooth: hci0: command 0x0419 tx timeout [ 77.272504][ T4754] ------------[ cut here ]------------ [ 77.273373][ T4754] WARNING: CPU: 1 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 77.275463][ T4754] Modules linked in: [ 77.276069][ T4754] CPU: 1 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 77.277568][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 77.279093][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.280366][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 77.281680][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 77.282869][ T4754] sp : ffff80001f317740 [ 77.283543][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001a2a710c [ 77.284923][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000002 [ 77.286321][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 77.287717][ T4754] x20: ffff0000d1538860 x19: 0000000000000000 x18: 0000000000000000 [ 77.289069][ T4754] x17: ffff800016e43000 x16: ffff8000112695d4 x15: 0000000000000000 [ 77.290538][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 77.291882][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 77.293217][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 77.294684][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 77.295984][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 77.297288][ T4754] Call trace: [ 77.297818][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 77.299060][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 77.299986][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 77.301095][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 77.301988][ T4754] close_ctree+0x618/0x834 [ 77.302724][ T4754] btrfs_put_super+0x40/0x50 [ 77.303432][ T4754] generic_shutdown_super+0x130/0x2f0 [ 77.304368][ T4754] kill_anon_super+0x4c/0x80 [ 77.305116][ T4754] btrfs_kill_super+0x40/0x58 [ 77.305906][ T4754] deactivate_locked_super+0xb8/0x134 [ 77.306826][ T4754] deactivate_super+0xf0/0x110 [ 77.307657][ T4754] cleanup_mnt+0x3b8/0x46c [ 77.308516][ T4754] __cleanup_mnt+0x20/0x30 [ 77.309335][ T4754] task_work_run+0x12c/0x1d8 [ 77.310110][ T4754] do_notify_resume+0x2450/0x309c [ 77.310993][ T4754] el0_svc+0xf0/0x1d0 [ 77.311699][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 77.312532][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 77.313291][ T4754] irq event stamp: 325686 [ 77.314109][ T4754] hardirqs last enabled at (325685): [] kasan_quarantine_put+0xc4/0x200 [ 77.315794][ T4754] hardirqs last disabled at (325686): [] el1_dbg+0x24/0x80 [ 77.317306][ T4754] softirqs last enabled at (322730): [] local_bh_enable+0x10/0x34 [ 77.318942][ T4754] softirqs last disabled at (322728): [] local_bh_disable+0x10/0x34 [ 77.320673][ T4754] ---[ end trace 7717f1496c0e0688 ]--- [ 77.331783][ T1606] device bridge_slave_0 left promiscuous mode [ 77.332954][ T1606] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.420114][ T1606] device veth1_macvtap left promiscuous mode [ 77.421200][ T1606] device veth0_macvtap left promiscuous mode [ 77.422260][ T1606] device veth1_vlan left promiscuous mode [ 77.423353][ T1606] device veth0_vlan left promiscuous mode [ 77.475893][ T5129] loop0: detected capacity change from 0 to 32768 [ 77.512780][ T5129] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.23 (5129) [ 77.517492][ T5129] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 77.571599][ T5129] BTRFS warning (device loop0): couldn't read tree root [ 77.572947][ T5129] BTRFS warning (device loop0): couldn't read tree root [ 77.574333][ T5129] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 77.576053][ T5129] BTRFS warning (device loop0): couldn't read tree root [ 77.595159][ T5129] FAULT_INJECTION: forcing a failure. [ 77.595159][ T5129] name failslab, interval 1, probability 0, space 0, times 0 [ 77.597349][ T5129] CPU: 1 PID: 5129 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 77.598782][ T5129] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 77.600485][ T5129] Call trace: [ 77.601087][ T5129] dump_backtrace+0x0/0x458 [ 77.601879][ T5129] show_stack+0x2c/0x3c [ 77.602608][ T5129] __dump_stack+0x30/0x40 [ 77.603393][ T5129] dump_stack_lvl+0xf4/0x15c [ 77.604224][ T5129] dump_stack+0x1c/0x5c [ 77.604924][ T5129] should_fail+0x3bc/0x514 [ 77.605672][ T5129] __should_failslab+0xbc/0x10c [ 77.606444][ T5129] should_failslab+0x10/0x28 [ 77.607286][ T5129] slab_pre_alloc_hook+0x64/0xe8 [ 77.608093][ T5129] kmem_cache_alloc+0x94/0x3d4 [ 77.608913][ T5129] btrfs_alloc_tree_block+0xa3c/0x1130 [ 77.609917][ T5129] insert_new_root+0x244/0x8a4 [ 77.610793][ T5129] split_leaf+0xa44/0x1090 [ 77.611532][ T5129] btrfs_search_slot+0x1c1c/0x1f44 [ 77.612357][ T5129] btrfs_insert_empty_items+0x1d8/0x2a0 [ 77.613339][ T5129] insert_with_overflow+0xbc/0x248 [ 77.614153][ T5129] btrfs_insert_xattr_item+0x178/0x30c [ 77.615033][ T5129] btrfs_setxattr+0x3d8/0x8bc [ 77.615846][ T5129] btrfs_setxattr_trans+0xfc/0x354 [ 77.616753][ T5129] btrfs_xattr_handler_set+0xb0/0xd8 [ 77.617713][ T5129] __vfs_setxattr+0x384/0x3a0 [ 77.618508][ T5129] __vfs_setxattr_noperm+0x120/0x564 [ 77.619446][ T5129] __vfs_setxattr_locked+0x1ec/0x218 [ 77.620328][ T5129] vfs_setxattr+0x158/0x2ac [ 77.621113][ T5129] setxattr+0x278/0x2f8 [ 77.621808][ T5129] path_setxattr+0x130/0x260 [ 77.622597][ T5129] __arm64_sys_setxattr+0xbc/0xd8 [ 77.623461][ T5129] invoke_syscall+0x98/0x2b0 [ 77.624273][ T5129] el0_svc_common+0x138/0x258 [ 77.625059][ T5129] do_el0_svc+0x58/0x13c [ 77.625759][ T5129] el0_svc+0x78/0x1d0 [ 77.626455][ T5129] el0t_64_sync_handler+0xcc/0xe4 [ 77.627316][ T5129] el0t_64_sync+0x1a0/0x1a4 [ 77.628863][ T1606] team0 (unregistering): Port device team_slave_1 removed [ 77.636013][ T1606] team0 (unregistering): Port device team_slave_0 removed [ 77.640970][ T1606] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 77.678530][ T4754] ------------[ cut here ]------------ [ 77.679489][ T4754] WARNING: CPU: 0 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 77.681406][ T4754] Modules linked in: [ 77.682050][ T4754] CPU: 0 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 77.683624][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 77.685488][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.686966][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 77.688171][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 77.689425][ T4754] sp : ffff80001f317740 [ 77.690150][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001d09690c [ 77.691568][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000001 [ 77.692845][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 77.694242][ T4754] x20: ffff0000e84b4860 x19: 0000000000000000 x18: 0000000000000000 [ 77.695544][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 77.696878][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 77.698087][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 77.699469][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 77.700952][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 77.702412][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 77.703795][ T4754] Call trace: [ 77.704348][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 77.705470][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 77.706416][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 77.707441][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 77.708441][ T4754] close_ctree+0x618/0x834 [ 77.709179][ T4754] btrfs_put_super+0x40/0x50 [ 77.709939][ T4754] generic_shutdown_super+0x130/0x2f0 [ 77.710863][ T4754] kill_anon_super+0x4c/0x80 [ 77.711687][ T4754] btrfs_kill_super+0x40/0x58 [ 77.712435][ T4754] deactivate_locked_super+0xb8/0x134 [ 77.713374][ T4754] deactivate_super+0xf0/0x110 [ 77.714182][ T4754] cleanup_mnt+0x3b8/0x46c [ 77.714970][ T4754] __cleanup_mnt+0x20/0x30 [ 77.715780][ T4754] task_work_run+0x12c/0x1d8 [ 77.716513][ T4754] do_notify_resume+0x2450/0x309c [ 77.717376][ T4754] el0_svc+0xf0/0x1d0 [ 77.718069][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 77.718958][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 77.719737][ T4754] irq event stamp: 351650 [ 77.720446][ T4754] hardirqs last enabled at (351649): [] kasan_quarantine_put+0xc4/0x200 [ 77.722197][ T4754] hardirqs last disabled at (351650): [] el1_dbg+0x24/0x80 [ 77.723695][ T4754] softirqs last enabled at (348990): [] local_bh_enable+0x10/0x34 [ 77.725267][ T4754] softirqs last disabled at (348988): [] local_bh_disable+0x10/0x34 [ 77.726847][ T4754] ---[ end trace 7717f1496c0e0689 ]--- [ 77.734540][ T1606] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 77.857522][ T1606] bond0 (unregistering): Released all slaves [ 77.887924][ T5151] loop0: detected capacity change from 0 to 32768 [ 77.932877][ T5151] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.24 (5151) [ 77.971451][ T5151] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 77.979785][ T5151] BTRFS warning (device loop0): couldn't read tree root [ 77.982378][ T5151] BTRFS warning (device loop0): couldn't read tree root [ 77.983684][ T5151] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 77.985332][ T5151] BTRFS warning (device loop0): couldn't read tree root [ 77.995415][ T5151] FAULT_INJECTION: forcing a failure. [ 77.995415][ T5151] name failslab, interval 1, probability 0, space 0, times 0 [ 77.997730][ T5151] CPU: 0 PID: 5151 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 77.999141][ T5151] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 78.000932][ T5151] Call trace: [ 78.001556][ T5151] dump_backtrace+0x0/0x458 [ 78.002303][ T5151] show_stack+0x2c/0x3c [ 78.003022][ T5151] __dump_stack+0x30/0x40 [ 78.003766][ T5151] dump_stack_lvl+0xf4/0x15c [ 78.004546][ T5151] dump_stack+0x1c/0x5c [ 78.005301][ T5151] should_fail+0x3bc/0x514 [ 78.006087][ T5151] __should_failslab+0xbc/0x10c [ 78.006941][ T5151] should_failslab+0x10/0x28 [ 78.007745][ T5151] slab_pre_alloc_hook+0x64/0xe8 [ 78.008587][ T5151] kmem_cache_alloc+0x94/0x3d4 [ 78.009347][ T5151] btrfs_alloc_tree_block+0xa3c/0x1130 [ 78.010298][ T5151] insert_new_root+0x244/0x8a4 [ 78.011157][ T5151] split_leaf+0xa44/0x1090 [ 78.011940][ T5151] btrfs_search_slot+0x1c1c/0x1f44 [ 78.012765][ T5151] btrfs_insert_empty_items+0x1d8/0x2a0 [ 78.013701][ T5151] insert_with_overflow+0xbc/0x248 [ 78.014686][ T5151] btrfs_insert_xattr_item+0x178/0x30c [ 78.015659][ T5151] btrfs_setxattr+0x3d8/0x8bc [ 78.016452][ T5151] btrfs_setxattr_trans+0xfc/0x354 [ 78.017286][ T5151] btrfs_xattr_handler_set+0xb0/0xd8 [ 78.018196][ T5151] __vfs_setxattr+0x384/0x3a0 [ 78.018914][ T5151] __vfs_setxattr_noperm+0x120/0x564 [ 78.019816][ T5151] __vfs_setxattr_locked+0x1ec/0x218 [ 78.020712][ T5151] vfs_setxattr+0x158/0x2ac [ 78.021436][ T5151] setxattr+0x278/0x2f8 [ 78.022141][ T5151] path_setxattr+0x130/0x260 [ 78.022938][ T5151] __arm64_sys_setxattr+0xbc/0xd8 [ 78.023803][ T5151] invoke_syscall+0x98/0x2b0 [ 78.024576][ T5151] el0_svc_common+0x138/0x258 [ 78.025391][ T5151] do_el0_svc+0x58/0x13c [ 78.026077][ T5151] el0_svc+0x78/0x1d0 [ 78.026739][ T5151] el0t_64_sync_handler+0xcc/0xe4 [ 78.027628][ T5151] el0t_64_sync+0x1a0/0x1a4 [ 78.065379][ T4754] ------------[ cut here ]------------ [ 78.066208][ T4754] WARNING: CPU: 1 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 78.068177][ T4754] Modules linked in: [ 78.068816][ T4754] CPU: 1 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 78.070373][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 78.072118][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.073428][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 78.074608][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 78.075856][ T4754] sp : ffff80001f317740 [ 78.076569][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe000182c1c0c [ 78.077989][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000002 [ 78.079355][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 78.080663][ T4754] x20: ffff0000c160e060 x19: 0000000000000000 x18: 0000000000000000 [ 78.082051][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 78.083412][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 78.084839][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 78.086257][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 78.087769][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 78.089142][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 78.090502][ T4754] Call trace: [ 78.091057][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 78.092213][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 78.093204][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 78.094178][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 78.095074][ T4754] close_ctree+0x618/0x834 [ 78.095838][ T4754] btrfs_put_super+0x40/0x50 [ 78.096612][ T4754] generic_shutdown_super+0x130/0x2f0 [ 78.097509][ T4754] kill_anon_super+0x4c/0x80 [ 78.098308][ T4754] btrfs_kill_super+0x40/0x58 [ 78.099341][ T4754] deactivate_locked_super+0xb8/0x134 [ 78.100210][ T4754] deactivate_super+0xf0/0x110 [ 78.101066][ T4754] cleanup_mnt+0x3b8/0x46c [ 78.101856][ T4754] __cleanup_mnt+0x20/0x30 [ 78.102670][ T4754] task_work_run+0x12c/0x1d8 [ 78.103553][ T4754] do_notify_resume+0x2450/0x309c [ 78.104504][ T4754] el0_svc+0xf0/0x1d0 [ 78.105166][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 78.106003][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 78.106793][ T4754] irq event stamp: 378516 [ 78.107474][ T4754] hardirqs last enabled at (378515): [] kasan_quarantine_put+0xc4/0x200 [ 78.109236][ T4754] hardirqs last disabled at (378516): [] el1_dbg+0x24/0x80 [ 78.110741][ T4754] softirqs last enabled at (375910): [] local_bh_enable+0x10/0x34 [ 78.112421][ T4754] softirqs last disabled at (375908): [] local_bh_disable+0x10/0x34 [ 78.114002][ T4754] ---[ end trace 7717f1496c0e068a ]--- [ 78.362532][ T5172] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.25 (5172) [ 78.366227][ T5172] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 78.374357][ T5172] BTRFS warning (device loop0): couldn't read tree root [ 78.375946][ T5172] BTRFS warning (device loop0): couldn't read tree root [ 78.377604][ T5172] BTRFS warning (device loop0): couldn't read tree root [ 78.388850][ T5172] FAULT_INJECTION: forcing a failure. [ 78.388850][ T5172] name failslab, interval 1, probability 0, space 0, times 0 [ 78.391205][ T5172] CPU: 0 PID: 5172 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 78.392495][ T5172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 78.394228][ T5172] Call trace: [ 78.394830][ T5172] dump_backtrace+0x0/0x458 [ 78.395604][ T5172] show_stack+0x2c/0x3c [ 78.396324][ T5172] __dump_stack+0x30/0x40 [ 78.397039][ T5172] dump_stack_lvl+0xf4/0x15c [ 78.397800][ T5172] dump_stack+0x1c/0x5c [ 78.398479][ T5172] should_fail+0x3bc/0x514 [ 78.399233][ T5172] __should_failslab+0xbc/0x10c [ 78.400104][ T5172] should_failslab+0x10/0x28 [ 78.400832][ T5172] slab_pre_alloc_hook+0x64/0xe8 [ 78.401661][ T5172] kmem_cache_alloc+0x94/0x3d4 [ 78.402387][ T5172] btrfs_alloc_tree_block+0xa3c/0x1130 [ 78.403367][ T5172] insert_new_root+0x244/0x8a4 [ 78.404143][ T5172] split_leaf+0xa44/0x1090 [ 78.404937][ T5172] btrfs_search_slot+0x1c1c/0x1f44 [ 78.405865][ T5172] btrfs_insert_empty_items+0x1d8/0x2a0 [ 78.406757][ T5172] insert_with_overflow+0xbc/0x248 [ 78.407596][ T5172] btrfs_insert_xattr_item+0x178/0x30c [ 78.408537][ T5172] btrfs_setxattr+0x3d8/0x8bc [ 78.409311][ T5172] btrfs_setxattr_trans+0xfc/0x354 [ 78.410287][ T5172] btrfs_xattr_handler_set+0xb0/0xd8 [ 78.411119][ T5172] __vfs_setxattr+0x384/0x3a0 [ 78.411957][ T5172] __vfs_setxattr_noperm+0x120/0x564 [ 78.412775][ T5172] __vfs_setxattr_locked+0x1ec/0x218 [ 78.413563][ T5172] vfs_setxattr+0x158/0x2ac [ 78.414285][ T5172] setxattr+0x278/0x2f8 [ 78.414946][ T5172] path_setxattr+0x130/0x260 [ 78.415764][ T5172] __arm64_sys_setxattr+0xbc/0xd8 [ 78.416595][ T5172] invoke_syscall+0x98/0x2b0 [ 78.417368][ T5172] el0_svc_common+0x138/0x258 [ 78.418156][ T5172] do_el0_svc+0x58/0x13c [ 78.418856][ T5172] el0_svc+0x78/0x1d0 [ 78.419583][ T5172] el0t_64_sync_handler+0xcc/0xe4 [ 78.420386][ T5172] el0t_64_sync+0x1a0/0x1a4 [ 78.465199][ T4754] ------------[ cut here ]------------ [ 78.466103][ T4754] WARNING: CPU: 0 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 78.468109][ T4754] Modules linked in: [ 78.468876][ T4754] CPU: 0 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 78.470437][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 78.472301][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.473619][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 78.474869][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 78.476036][ T4754] sp : ffff80001f317740 [ 78.476737][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001b19a10c [ 78.478116][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000001 [ 78.479499][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 78.480868][ T4754] x20: ffff0000d8cd0860 x19: 0000000000000000 x18: 0000000000000000 [ 78.482250][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 78.483680][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 78.485087][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 78.486436][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 78.487766][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 78.489140][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 78.490545][ T4754] Call trace: [ 78.491108][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 78.492172][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 78.493114][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 78.494175][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 78.495048][ T4754] close_ctree+0x618/0x834 [ 78.495830][ T4754] btrfs_put_super+0x40/0x50 [ 78.496632][ T4754] generic_shutdown_super+0x130/0x2f0 [ 78.497636][ T4754] kill_anon_super+0x4c/0x80 [ 78.498478][ T4754] btrfs_kill_super+0x40/0x58 [ 78.499213][ T4754] deactivate_locked_super+0xb8/0x134 [ 78.500121][ T4754] deactivate_super+0xf0/0x110 [ 78.500971][ T4754] cleanup_mnt+0x3b8/0x46c [ 78.501737][ T4754] __cleanup_mnt+0x20/0x30 [ 78.502410][ T4754] task_work_run+0x12c/0x1d8 [ 78.503243][ T4754] do_notify_resume+0x2450/0x309c [ 78.504082][ T4754] el0_svc+0xf0/0x1d0 [ 78.504731][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 78.505609][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 78.506298][ T4754] irq event stamp: 406828 [ 78.506958][ T4754] hardirqs last enabled at (406827): [] kasan_quarantine_put+0xc4/0x200 [ 78.508456][ T4754] hardirqs last disabled at (406828): [] el1_dbg+0x24/0x80 [ 78.509858][ T4754] softirqs last enabled at (405970): [] handle_softirqs+0xa40/0xbe4 [ 78.511539][ T4754] softirqs last disabled at (405861): [] __irq_exit_rcu+0x240/0x43c [ 78.512990][ T4754] ---[ end trace 7717f1496c0e068b ]--- [ 78.711415][ T5194] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.26 (5194) [ 78.723092][ T5194] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 78.730761][ T5194] BTRFS warning (device loop0): couldn't read tree root [ 78.732154][ T5194] BTRFS warning (device loop0): couldn't read tree root [ 78.733477][ T5194] BTRFS warning (device loop0): couldn't read tree root [ 78.743648][ T5194] FAULT_INJECTION: forcing a failure. [ 78.743648][ T5194] name failslab, interval 1, probability 0, space 0, times 0 [ 78.745690][ T5194] CPU: 0 PID: 5194 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 78.747244][ T5194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 78.748944][ T5194] Call trace: [ 78.749518][ T5194] dump_backtrace+0x0/0x458 [ 78.750323][ T5194] show_stack+0x2c/0x3c [ 78.751057][ T5194] __dump_stack+0x30/0x40 [ 78.751756][ T5194] dump_stack_lvl+0xf4/0x15c [ 78.752477][ T5194] dump_stack+0x1c/0x5c [ 78.753223][ T5194] should_fail+0x3bc/0x514 [ 78.754049][ T5194] __should_failslab+0xbc/0x10c [ 78.754903][ T5194] should_failslab+0x10/0x28 [ 78.755661][ T5194] slab_pre_alloc_hook+0x64/0xe8 [ 78.756555][ T5194] kmem_cache_alloc+0x94/0x3d4 [ 78.757287][ T5194] alloc_extent_state+0x38/0x42c [ 78.758127][ T5194] set_extent_bit+0x1b0/0x1378 [ 78.758971][ T5194] btrfs_alloc_tree_block+0x998/0x1130 [ 78.759797][ T5194] insert_new_root+0x244/0x8a4 [ 78.760578][ T5194] split_leaf+0xa44/0x1090 [ 78.761390][ T5194] btrfs_search_slot+0x1c1c/0x1f44 [ 78.762261][ T5194] btrfs_insert_empty_items+0x1d8/0x2a0 [ 78.763199][ T5194] insert_with_overflow+0xbc/0x248 [ 78.764146][ T5194] btrfs_insert_xattr_item+0x178/0x30c [ 78.765065][ T5194] btrfs_setxattr+0x3d8/0x8bc [ 78.765838][ T5194] btrfs_setxattr_trans+0xfc/0x354 [ 78.766717][ T5194] btrfs_xattr_handler_set+0xb0/0xd8 [ 78.767620][ T5194] __vfs_setxattr+0x384/0x3a0 [ 78.768503][ T5194] __vfs_setxattr_noperm+0x120/0x564 [ 78.769324][ T5194] __vfs_setxattr_locked+0x1ec/0x218 [ 78.770196][ T5194] vfs_setxattr+0x158/0x2ac [ 78.771021][ T5194] setxattr+0x278/0x2f8 [ 78.771734][ T5194] path_setxattr+0x130/0x260 [ 78.772444][ T5194] __arm64_sys_setxattr+0xbc/0xd8 [ 78.773291][ T5194] invoke_syscall+0x98/0x2b0 [ 78.774072][ T5194] el0_svc_common+0x138/0x258 [ 78.774849][ T5194] do_el0_svc+0x58/0x13c [ 78.775593][ T5194] el0_svc+0x78/0x1d0 [ 78.776295][ T5194] el0t_64_sync_handler+0xcc/0xe4 [ 78.777108][ T5194] el0t_64_sync+0x1a0/0x1a4 [ 78.972887][ T5216] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.27 (5216) [ 79.061824][ T5216] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 79.069802][ T5216] BTRFS warning (device loop0): couldn't read tree root [ 79.071996][ T5216] BTRFS warning (device loop0): couldn't read tree root [ 79.074180][ T5216] BTRFS warning (device loop0): couldn't read tree root [ 79.090802][ T5216] FAULT_INJECTION: forcing a failure. [ 79.090802][ T5216] name failslab, interval 1, probability 0, space 0, times 0 [ 79.092670][ T5216] CPU: 1 PID: 5216 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 79.094327][ T5216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.096028][ T5216] Call trace: [ 79.096534][ T5216] dump_backtrace+0x0/0x458 [ 79.097280][ T5216] show_stack+0x2c/0x3c [ 79.098001][ T5216] __dump_stack+0x30/0x40 [ 79.098755][ T5216] dump_stack_lvl+0xf4/0x15c [ 79.099688][ T5216] dump_stack+0x1c/0x5c [ 79.100362][ T5216] should_fail+0x3bc/0x514 [ 79.101120][ T5216] __should_failslab+0xbc/0x10c [ 79.101952][ T5216] should_failslab+0x10/0x28 [ 79.102716][ T5216] slab_pre_alloc_hook+0x64/0xe8 [ 79.103587][ T5216] kmem_cache_alloc+0x94/0x3d4 [ 79.104462][ T5216] btrfs_alloc_tree_block+0xa3c/0x1130 [ 79.105436][ T5216] insert_new_root+0x244/0x8a4 [ 79.106323][ T5216] split_leaf+0xa44/0x1090 [ 79.107035][ T5216] btrfs_search_slot+0x1c1c/0x1f44 [ 79.107857][ T5216] btrfs_insert_empty_items+0x1d8/0x2a0 [ 79.108762][ T5216] insert_with_overflow+0xbc/0x248 [ 79.109631][ T5216] btrfs_insert_xattr_item+0x178/0x30c [ 79.110532][ T5216] btrfs_setxattr+0x3d8/0x8bc [ 79.111291][ T5216] btrfs_setxattr_trans+0xfc/0x354 [ 79.112131][ T5216] btrfs_xattr_handler_set+0xb0/0xd8 [ 79.112938][ T5216] __vfs_setxattr+0x384/0x3a0 [ 79.113697][ T5216] __vfs_setxattr_noperm+0x120/0x564 [ 79.114606][ T5216] __vfs_setxattr_locked+0x1ec/0x218 [ 79.115527][ T5216] vfs_setxattr+0x158/0x2ac [ 79.116296][ T5216] setxattr+0x278/0x2f8 [ 79.117036][ T5216] path_setxattr+0x130/0x260 [ 79.117888][ T5216] __arm64_sys_setxattr+0xbc/0xd8 [ 79.118775][ T5216] invoke_syscall+0x98/0x2b0 [ 79.119572][ T5216] el0_svc_common+0x138/0x258 [ 79.120394][ T5216] do_el0_svc+0x58/0x13c [ 79.121202][ T5216] el0_svc+0x78/0x1d0 [ 79.121946][ T5216] el0t_64_sync_handler+0xcc/0xe4 [ 79.122777][ T5216] el0t_64_sync+0x1a0/0x1a4 [ 79.160579][ T4754] ------------[ cut here ]------------ [ 79.161553][ T4754] WARNING: CPU: 0 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 79.163517][ T4754] Modules linked in: [ 79.164110][ T4754] CPU: 0 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 79.165548][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.167280][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.168599][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 79.169706][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 79.170848][ T4754] sp : ffff80001f317740 [ 79.171618][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe000193ec80c [ 79.172952][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000001 [ 79.174341][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 79.175768][ T4754] x20: ffff0000c9f64060 x19: 0000000000000000 x18: 0000000000000000 [ 79.177134][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 79.178524][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 79.179853][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 79.181311][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 79.182780][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 79.184277][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 79.185701][ T4754] Call trace: [ 79.186293][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 79.187472][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 79.188459][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 79.189517][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 79.190434][ T4754] close_ctree+0x618/0x834 [ 79.191184][ T4754] btrfs_put_super+0x40/0x50 [ 79.191973][ T4754] generic_shutdown_super+0x130/0x2f0 [ 79.192913][ T4754] kill_anon_super+0x4c/0x80 [ 79.193779][ T4754] btrfs_kill_super+0x40/0x58 [ 79.194638][ T4754] deactivate_locked_super+0xb8/0x134 [ 79.195547][ T4754] deactivate_super+0xf0/0x110 [ 79.196374][ T4754] cleanup_mnt+0x3b8/0x46c [ 79.197154][ T4754] __cleanup_mnt+0x20/0x30 [ 79.197951][ T4754] task_work_run+0x12c/0x1d8 [ 79.198773][ T4754] do_notify_resume+0x2450/0x309c [ 79.199653][ T4754] el0_svc+0xf0/0x1d0 [ 79.200376][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 79.201236][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 79.202025][ T4754] irq event stamp: 440962 [ 79.202730][ T4754] hardirqs last enabled at (440961): [] kasan_quarantine_put+0xc4/0x200 [ 79.204528][ T4754] hardirqs last disabled at (440962): [] el1_dbg+0x24/0x80 [ 79.205997][ T4754] softirqs last enabled at (438862): [] handle_softirqs+0xa40/0xbe4 [ 79.207525][ T4754] softirqs last disabled at (438857): [] __irq_exit_rcu+0x240/0x43c [ 79.209044][ T4754] ---[ end trace 7717f1496c0e068c ]--- [ 79.421364][ T5237] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.28 (5237) [ 79.428303][ T5237] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 79.542280][ T9] validate_extent_buffer: 16 callbacks suppressed [ 79.542295][ T9] BTRFS warning (device loop0): checksum verify failed on 5332992 wanted 0x0a5e5d25 found 0x26333c6f level 0 [ 79.545625][ T5237] BTRFS warning (device loop0): couldn't read tree root [ 79.547085][ T265] BTRFS warning (device loop0): checksum verify failed on 5324800 wanted 0x9f73850b found 0x78ca8373 level 0 [ 79.549060][ T5237] BTRFS warning (device loop0): couldn't read tree root [ 79.550537][ T5237] verify_parent_transid: 3 callbacks suppressed [ 79.550554][ T5237] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 79.553148][ T5237] BTRFS warning (device loop0): couldn't read tree root [ 79.563011][ T5237] btrfs_printk: 131 callbacks suppressed [ 79.563019][ T5237] BTRFS info (device loop0): enabling ssd optimizations [ 79.565690][ T5237] BTRFS info (device loop0): clearing free space tree [ 79.566848][ T5237] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 79.568437][ T5237] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 79.573008][ T5237] BTRFS info (device loop0): creating free space tree [ 79.574458][ T5237] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 79.576061][ T5237] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 79.591295][ T5237] FAULT_INJECTION: forcing a failure. [ 79.591295][ T5237] name failslab, interval 1, probability 0, space 0, times 0 [ 79.593522][ T5237] CPU: 1 PID: 5237 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 79.594987][ T5237] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.596700][ T5237] Call trace: [ 79.597229][ T5237] dump_backtrace+0x0/0x458 [ 79.597951][ T5237] show_stack+0x2c/0x3c [ 79.598659][ T5237] __dump_stack+0x30/0x40 [ 79.599444][ T5237] dump_stack_lvl+0xf4/0x15c [ 79.600255][ T5237] dump_stack+0x1c/0x5c [ 79.600997][ T5237] should_fail+0x3bc/0x514 [ 79.601734][ T5237] __should_failslab+0xbc/0x10c [ 79.602544][ T5237] should_failslab+0x10/0x28 [ 79.603331][ T5237] slab_pre_alloc_hook+0x64/0xe8 [ 79.604189][ T5237] kmem_cache_alloc+0x94/0x3d4 [ 79.605041][ T5237] btrfs_alloc_tree_block+0xa3c/0x1130 [ 79.605831][ T5237] insert_new_root+0x244/0x8a4 [ 79.606453][ T5237] split_leaf+0xa44/0x1090 [ 79.607048][ T5237] btrfs_search_slot+0x1c1c/0x1f44 [ 79.607741][ T5237] btrfs_insert_empty_items+0x1d8/0x2a0 [ 79.608578][ T5237] insert_with_overflow+0xbc/0x248 [ 79.609378][ T5237] btrfs_insert_xattr_item+0x178/0x30c [ 79.610204][ T5237] btrfs_setxattr+0x3d8/0x8bc [ 79.610964][ T5237] btrfs_setxattr_trans+0xfc/0x354 [ 79.611973][ T5237] btrfs_xattr_handler_set+0xb0/0xd8 [ 79.612871][ T5237] __vfs_setxattr+0x384/0x3a0 [ 79.613674][ T5237] __vfs_setxattr_noperm+0x120/0x564 [ 79.614541][ T5237] __vfs_setxattr_locked+0x1ec/0x218 [ 79.615469][ T5237] vfs_setxattr+0x158/0x2ac [ 79.616190][ T5237] setxattr+0x278/0x2f8 [ 79.616939][ T5237] path_setxattr+0x130/0x260 [ 79.617727][ T5237] __arm64_sys_setxattr+0xbc/0xd8 [ 79.618591][ T5237] invoke_syscall+0x98/0x2b0 [ 79.619434][ T5237] el0_svc_common+0x138/0x258 [ 79.620279][ T5237] do_el0_svc+0x58/0x13c [ 79.621038][ T5237] el0_svc+0x78/0x1d0 [ 79.621719][ T5237] el0t_64_sync_handler+0xcc/0xe4 [ 79.622628][ T5237] el0t_64_sync+0x1a0/0x1a4 [ 79.679547][ T4754] ------------[ cut here ]------------ [ 79.680605][ T4754] WARNING: CPU: 0 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 79.682730][ T4754] Modules linked in: [ 79.683415][ T4754] CPU: 0 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 79.684979][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.686803][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.688151][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 79.689386][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 79.690620][ T4754] sp : ffff80001f317740 [ 79.691291][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001ae3770c [ 79.692632][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000001 [ 79.694064][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 79.695492][ T4754] x20: ffff0000d71bb860 x19: 0000000000000000 x18: 0000000000000000 [ 79.696857][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 79.698190][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 79.699564][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 79.700923][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 79.702024][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 79.703320][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 79.704717][ T4754] Call trace: [ 79.705289][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 79.706389][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 79.707211][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 79.708130][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 79.709044][ T4754] close_ctree+0x618/0x834 [ 79.709824][ T4754] btrfs_put_super+0x40/0x50 [ 79.710614][ T4754] generic_shutdown_super+0x130/0x2f0 [ 79.711502][ T4754] kill_anon_super+0x4c/0x80 [ 79.712327][ T4754] btrfs_kill_super+0x40/0x58 [ 79.713068][ T4754] deactivate_locked_super+0xb8/0x134 [ 79.713939][ T4754] deactivate_super+0xf0/0x110 [ 79.714733][ T4754] cleanup_mnt+0x3b8/0x46c [ 79.715463][ T4754] __cleanup_mnt+0x20/0x30 [ 79.716245][ T4754] task_work_run+0x12c/0x1d8 [ 79.717001][ T4754] do_notify_resume+0x2450/0x309c [ 79.717868][ T4754] el0_svc+0xf0/0x1d0 [ 79.718615][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 79.719466][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 79.720229][ T4754] irq event stamp: 467952 [ 79.720946][ T4754] hardirqs last enabled at (467951): [] kasan_quarantine_put+0xc4/0x200 [ 79.722737][ T4754] hardirqs last disabled at (467952): [] el1_dbg+0x24/0x80 [ 79.724279][ T4754] softirqs last enabled at (465378): [] local_bh_enable+0x10/0x34 [ 79.725961][ T4754] softirqs last disabled at (465376): [] local_bh_disable+0x10/0x34 [ 79.727679][ T4754] ---[ end trace 7717f1496c0e068d ]--- 1970/01/01 00:01:19 executed programs: 16 [ 79.894845][ T5260] set_capacity_and_notify: 4 callbacks suppressed [ 79.894855][ T5260] loop0: detected capacity change from 0 to 32768 [ 79.901247][ T5260] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.29 (5260) [ 79.905555][ T5260] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.907054][ T5260] BTRFS info (device loop0): metadata ratio 4 [ 79.908010][ T5260] BTRFS info (device loop0): setting incompat feature flag for COMPRESS_LZO (0x8) [ 79.909620][ T5260] BTRFS info (device loop0): force lzo compression, level 0 [ 79.916005][ T5260] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 79.917794][ T5260] BTRFS info (device loop0): trying to use backup root at mount time [ 79.919212][ T5260] BTRFS info (device loop0): enabling auto defrag [ 79.921169][ T5260] BTRFS info (device loop0): setting nodatacow [ 79.922138][ T5260] BTRFS info (device loop0): disabling tree log [ 79.923239][ T5260] BTRFS info (device loop0): using free space tree [ 79.924305][ T5260] BTRFS info (device loop0): has skinny extents [ 79.930464][ T136] BTRFS warning (device loop0): checksum verify failed on 5332992 wanted 0x0a5e5d25 found 0x26333c6f level 0 [ 79.933174][ T5260] BTRFS warning (device loop0): couldn't read tree root [ 79.934519][ T136] BTRFS warning (device loop0): checksum verify failed on 5324800 wanted 0x9f73850b found 0x78ca8373 level 0 [ 79.936738][ T5260] BTRFS warning (device loop0): couldn't read tree root [ 79.938086][ T5260] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 79.939740][ T5260] BTRFS warning (device loop0): couldn't read tree root [ 79.960476][ T5260] BTRFS info (device loop0): enabling ssd optimizations [ 79.961896][ T5260] BTRFS info (device loop0): clearing free space tree [ 79.963010][ T5260] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 79.964562][ T5260] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 79.971145][ T5260] BTRFS info (device loop0): creating free space tree [ 79.972558][ T5260] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 79.974206][ T5260] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 79.982790][ T5260] FAULT_INJECTION: forcing a failure. [ 79.982790][ T5260] name failslab, interval 1, probability 0, space 0, times 0 [ 79.984937][ T5260] CPU: 1 PID: 5260 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 79.986386][ T5260] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.988036][ T5260] Call trace: [ 79.988591][ T5260] dump_backtrace+0x0/0x458 [ 79.989421][ T5260] show_stack+0x2c/0x3c [ 79.990108][ T5260] __dump_stack+0x30/0x40 [ 79.990869][ T5260] dump_stack_lvl+0xf4/0x15c [ 79.991587][ T5260] dump_stack+0x1c/0x5c [ 79.992375][ T5260] should_fail+0x3bc/0x514 [ 79.993259][ T5260] __should_failslab+0xbc/0x10c [ 79.994096][ T5260] should_failslab+0x10/0x28 [ 79.994897][ T5260] slab_pre_alloc_hook+0x64/0xe8 [ 79.995810][ T5260] kmem_cache_alloc+0x94/0x3d4 [ 79.996631][ T5260] btrfs_alloc_tree_block+0xa3c/0x1130 [ 79.997504][ T5260] insert_new_root+0x244/0x8a4 [ 79.998281][ T5260] split_leaf+0xa44/0x1090 [ 79.999030][ T5260] btrfs_search_slot+0x1c1c/0x1f44 [ 79.999896][ T5260] btrfs_insert_empty_items+0x1d8/0x2a0 [ 80.000829][ T5260] insert_with_overflow+0xbc/0x248 [ 80.001746][ T5260] btrfs_insert_xattr_item+0x178/0x30c [ 80.002778][ T5260] btrfs_setxattr+0x3d8/0x8bc [ 80.003586][ T5260] btrfs_setxattr_trans+0xfc/0x354 [ 80.004504][ T5260] btrfs_xattr_handler_set+0xb0/0xd8 [ 80.005371][ T5260] __vfs_setxattr+0x384/0x3a0 [ 80.006133][ T5260] __vfs_setxattr_noperm+0x120/0x564 [ 80.007101][ T5260] __vfs_setxattr_locked+0x1ec/0x218 [ 80.008025][ T5260] vfs_setxattr+0x158/0x2ac [ 80.008793][ T5260] setxattr+0x278/0x2f8 [ 80.009500][ T5260] path_setxattr+0x130/0x260 [ 80.010245][ T5260] __arm64_sys_setxattr+0xbc/0xd8 [ 80.011205][ T5260] invoke_syscall+0x98/0x2b0 [ 80.012108][ T5260] el0_svc_common+0x138/0x258 [ 80.012897][ T5260] do_el0_svc+0x58/0x13c [ 80.013596][ T5260] el0_svc+0x78/0x1d0 [ 80.014267][ T5260] el0t_64_sync_handler+0xcc/0xe4 [ 80.015154][ T5260] el0t_64_sync+0x1a0/0x1a4 [ 80.052711][ T4754] ------------[ cut here ]------------ [ 80.053572][ T4754] WARNING: CPU: 1 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 80.055461][ T4754] Modules linked in: [ 80.056135][ T4754] CPU: 1 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 80.057697][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.059460][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.060812][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 80.062056][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 80.063357][ T4754] sp : ffff80001f317740 [ 80.064066][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001820100c [ 80.065475][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000002 [ 80.066828][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 80.068224][ T4754] x20: ffff0000c1008060 x19: 0000000000000000 x18: 0000000000000000 [ 80.069728][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 80.071011][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 80.072429][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 80.073873][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 80.075250][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 80.076502][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 80.077965][ T4754] Call trace: [ 80.078561][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 80.079741][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 80.080721][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 80.081746][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 80.082730][ T4754] close_ctree+0x618/0x834 [ 80.083495][ T4754] btrfs_put_super+0x40/0x50 [ 80.084318][ T4754] generic_shutdown_super+0x130/0x2f0 [ 80.085288][ T4754] kill_anon_super+0x4c/0x80 [ 80.086143][ T4754] btrfs_kill_super+0x40/0x58 [ 80.086941][ T4754] deactivate_locked_super+0xb8/0x134 [ 80.087890][ T4754] deactivate_super+0xf0/0x110 [ 80.088691][ T4754] cleanup_mnt+0x3b8/0x46c [ 80.089490][ T4754] __cleanup_mnt+0x20/0x30 [ 80.090215][ T4754] task_work_run+0x12c/0x1d8 [ 80.091065][ T4754] do_notify_resume+0x2450/0x309c [ 80.091969][ T4754] el0_svc+0xf0/0x1d0 [ 80.092668][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 80.093531][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 80.094260][ T4754] irq event stamp: 494752 [ 80.094931][ T4754] hardirqs last enabled at (494751): [] kasan_quarantine_put+0xc4/0x200 [ 80.096662][ T4754] hardirqs last disabled at (494752): [] el1_dbg+0x24/0x80 [ 80.098177][ T4754] softirqs last enabled at (492282): [] local_bh_enable+0x10/0x34 [ 80.099850][ T4754] softirqs last disabled at (492280): [] local_bh_disable+0x10/0x34 [ 80.101169][ T4754] ---[ end trace 7717f1496c0e068e ]--- [ 80.126799][ T4936] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4936) [ 80.236986][ T5283] loop0: detected capacity change from 0 to 32768 [ 80.282799][ T5283] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.284961][ T5283] BTRFS info (device loop0): metadata ratio 4 [ 80.286032][ T5283] BTRFS info (device loop0): setting incompat feature flag for COMPRESS_LZO (0x8) [ 80.287549][ T5283] BTRFS info (device loop0): force lzo compression, level 0 [ 80.288825][ T5283] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 80.291096][ T5283] BTRFS info (device loop0): trying to use backup root at mount time [ 80.292300][ T5283] BTRFS info (device loop0): enabling auto defrag [ 80.293271][ T5283] BTRFS info (device loop0): setting nodatacow [ 80.294325][ T5283] BTRFS info (device loop0): disabling tree log [ 80.295434][ T5283] BTRFS info (device loop0): using free space tree [ 80.296419][ T5283] BTRFS info (device loop0): has skinny extents [ 80.303625][ T9] BTRFS warning (device loop0): checksum verify failed on 5332992 wanted 0x0a5e5d25 found 0x26333c6f level 0 [ 80.305728][ T5283] BTRFS warning (device loop0): couldn't read tree root [ 80.307065][ T1606] BTRFS warning (device loop0): checksum verify failed on 5324800 wanted 0x9f73850b found 0x78ca8373 level 0 [ 80.309039][ T5283] BTRFS warning (device loop0): couldn't read tree root [ 80.311366][ T5283] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 80.313012][ T5283] BTRFS warning (device loop0): couldn't read tree root [ 80.316271][ T5283] BTRFS info (device loop0): enabling ssd optimizations [ 80.317796][ T5283] BTRFS info (device loop0): clearing free space tree [ 80.318890][ T5283] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 80.320933][ T5283] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 80.324432][ T5283] BTRFS info (device loop0): creating free space tree [ 80.325762][ T5283] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 80.327425][ T5283] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 80.332435][ T5283] FAULT_INJECTION: forcing a failure. [ 80.332435][ T5283] name failslab, interval 1, probability 0, space 0, times 0 [ 80.334640][ T5283] CPU: 0 PID: 5283 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 80.336195][ T5283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.337934][ T5283] Call trace: [ 80.338423][ T5283] dump_backtrace+0x0/0x458 [ 80.339198][ T5283] show_stack+0x2c/0x3c [ 80.339913][ T5283] __dump_stack+0x30/0x40 [ 80.340755][ T5283] dump_stack_lvl+0xf4/0x15c [ 80.341585][ T5283] dump_stack+0x1c/0x5c [ 80.342286][ T5283] should_fail+0x3bc/0x514 [ 80.343048][ T5283] __should_failslab+0xbc/0x10c [ 80.343903][ T5283] should_failslab+0x10/0x28 [ 80.344659][ T5283] slab_pre_alloc_hook+0x64/0xe8 [ 80.345482][ T5283] kmem_cache_alloc+0x94/0x3d4 [ 80.346295][ T5283] btrfs_alloc_tree_block+0xa3c/0x1130 [ 80.347213][ T5283] insert_new_root+0x244/0x8a4 [ 80.347983][ T5283] split_leaf+0xa44/0x1090 [ 80.348694][ T5283] btrfs_search_slot+0x1c1c/0x1f44 [ 80.349582][ T5283] btrfs_insert_empty_items+0x1d8/0x2a0 [ 80.350562][ T5283] insert_with_overflow+0xbc/0x248 [ 80.351455][ T5283] btrfs_insert_xattr_item+0x178/0x30c [ 80.352370][ T5283] btrfs_setxattr+0x3d8/0x8bc [ 80.353161][ T5283] btrfs_setxattr_trans+0xfc/0x354 [ 80.353964][ T5283] btrfs_xattr_handler_set+0xb0/0xd8 [ 80.354965][ T5283] __vfs_setxattr+0x384/0x3a0 [ 80.355848][ T5283] __vfs_setxattr_noperm+0x120/0x564 [ 80.356802][ T5283] __vfs_setxattr_locked+0x1ec/0x218 [ 80.357709][ T5283] vfs_setxattr+0x158/0x2ac [ 80.358531][ T5283] setxattr+0x278/0x2f8 [ 80.359194][ T5283] path_setxattr+0x130/0x260 [ 80.359990][ T5283] __arm64_sys_setxattr+0xbc/0xd8 [ 80.360827][ T5283] invoke_syscall+0x98/0x2b0 [ 80.361620][ T5283] el0_svc_common+0x138/0x258 [ 80.362475][ T5283] do_el0_svc+0x58/0x13c [ 80.363272][ T5283] el0_svc+0x78/0x1d0 [ 80.364010][ T5283] el0t_64_sync_handler+0xcc/0xe4 [ 80.364937][ T5283] el0t_64_sync+0x1a0/0x1a4 [ 80.411094][ T4754] ------------[ cut here ]------------ [ 80.412002][ T4754] WARNING: CPU: 1 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 80.413804][ T4754] Modules linked in: [ 80.414448][ T4754] CPU: 1 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 80.415949][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.417697][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.419071][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 80.420173][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 80.421409][ T4754] sp : ffff80001f317740 [ 80.422140][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe00019e4540c [ 80.423561][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000002 [ 80.424949][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 80.426376][ T4754] x20: ffff0000cf22a060 x19: 0000000000000000 x18: 0000000000000000 [ 80.427770][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 80.429221][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 80.430613][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 80.431992][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 80.433447][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 80.434799][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 80.436177][ T4754] Call trace: [ 80.436743][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 80.437988][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 80.438954][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 80.440020][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 80.440970][ T4754] close_ctree+0x618/0x834 [ 80.441768][ T4754] btrfs_put_super+0x40/0x50 [ 80.442542][ T4754] generic_shutdown_super+0x130/0x2f0 [ 80.443434][ T4754] kill_anon_super+0x4c/0x80 [ 80.444174][ T4754] btrfs_kill_super+0x40/0x58 [ 80.444987][ T4754] deactivate_locked_super+0xb8/0x134 [ 80.445852][ T4754] deactivate_super+0xf0/0x110 [ 80.446636][ T4754] cleanup_mnt+0x3b8/0x46c [ 80.447344][ T4754] __cleanup_mnt+0x20/0x30 [ 80.448000][ T4754] task_work_run+0x12c/0x1d8 [ 80.448751][ T4754] do_notify_resume+0x2450/0x309c [ 80.449618][ T4754] el0_svc+0xf0/0x1d0 [ 80.450282][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 80.451085][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 80.451871][ T4754] irq event stamp: 502212 [ 80.452586][ T4754] hardirqs last enabled at (502211): [] kasan_quarantine_put+0xc4/0x200 [ 80.454197][ T4754] hardirqs last disabled at (502212): [] el1_dbg+0x24/0x80 [ 80.455662][ T4754] softirqs last enabled at (499664): [] local_bh_enable+0x10/0x34 [ 80.457293][ T4754] softirqs last disabled at (499662): [] local_bh_disable+0x10/0x34 [ 80.458997][ T4754] ---[ end trace 7717f1496c0e068f ]--- [ 80.567344][ T5306] loop0: detected capacity change from 0 to 32768 [ 80.631487][ T5306] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.31 (5306) [ 80.635726][ T5306] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.637264][ T5306] BTRFS info (device loop0): metadata ratio 4 [ 80.638312][ T5306] BTRFS info (device loop0): setting incompat feature flag for COMPRESS_LZO (0x8) [ 80.640331][ T5306] BTRFS info (device loop0): force lzo compression, level 0 [ 80.641645][ T5306] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 80.643495][ T5306] BTRFS info (device loop0): trying to use backup root at mount time [ 80.645026][ T5306] BTRFS info (device loop0): enabling auto defrag [ 80.646198][ T5306] BTRFS info (device loop0): setting nodatacow [ 80.647223][ T5306] BTRFS info (device loop0): disabling tree log [ 80.648262][ T5306] BTRFS info (device loop0): using free space tree [ 80.649370][ T5306] BTRFS info (device loop0): has skinny extents [ 80.661901][ T136] BTRFS warning (device loop0): checksum verify failed on 5332992 wanted 0x0a5e5d25 found 0x26333c6f level 0 [ 80.664130][ T5306] BTRFS warning (device loop0): couldn't read tree root [ 80.665591][ T9] BTRFS warning (device loop0): checksum verify failed on 5324800 wanted 0x9f73850b found 0x78ca8373 level 0 [ 80.667698][ T5306] BTRFS warning (device loop0): couldn't read tree root [ 80.669191][ T5306] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 80.671576][ T5306] BTRFS warning (device loop0): couldn't read tree root [ 80.674879][ T5306] BTRFS info (device loop0): enabling ssd optimizations [ 80.676354][ T5306] BTRFS info (device loop0): clearing free space tree [ 80.677503][ T5306] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 80.679149][ T5306] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 80.683056][ T5306] BTRFS info (device loop0): creating free space tree [ 80.684413][ T5306] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 80.685904][ T5306] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 80.692243][ T5306] FAULT_INJECTION: forcing a failure. [ 80.692243][ T5306] name failslab, interval 1, probability 0, space 0, times 0 [ 80.694478][ T5306] CPU: 1 PID: 5306 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 80.696035][ T5306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.697734][ T5306] Call trace: [ 80.698259][ T5306] dump_backtrace+0x0/0x458 [ 80.699056][ T5306] show_stack+0x2c/0x3c [ 80.699715][ T5306] __dump_stack+0x30/0x40 [ 80.700432][ T5306] dump_stack_lvl+0xf4/0x15c [ 80.701203][ T5306] dump_stack+0x1c/0x5c [ 80.701884][ T5306] should_fail+0x3bc/0x514 [ 80.702606][ T5306] __should_failslab+0xbc/0x10c [ 80.703461][ T5306] should_failslab+0x10/0x28 [ 80.704258][ T5306] slab_pre_alloc_hook+0x64/0xe8 [ 80.705062][ T5306] kmem_cache_alloc+0x94/0x3d4 [ 80.705860][ T5306] btrfs_alloc_tree_block+0xa3c/0x1130 [ 80.706763][ T5306] insert_new_root+0x244/0x8a4 [ 80.707572][ T5306] split_leaf+0xa44/0x1090 [ 80.708378][ T5306] btrfs_search_slot+0x1c1c/0x1f44 [ 80.709270][ T5306] btrfs_insert_empty_items+0x1d8/0x2a0 [ 80.710195][ T5306] insert_with_overflow+0xbc/0x248 [ 80.711043][ T5306] btrfs_insert_xattr_item+0x178/0x30c [ 80.712107][ T5306] btrfs_setxattr+0x3d8/0x8bc [ 80.712951][ T5306] btrfs_setxattr_trans+0xfc/0x354 [ 80.713805][ T5306] btrfs_xattr_handler_set+0xb0/0xd8 [ 80.714700][ T5306] __vfs_setxattr+0x384/0x3a0 [ 80.715482][ T5306] __vfs_setxattr_noperm+0x120/0x564 [ 80.716336][ T5306] __vfs_setxattr_locked+0x1ec/0x218 [ 80.717285][ T5306] vfs_setxattr+0x158/0x2ac [ 80.718048][ T5306] setxattr+0x278/0x2f8 [ 80.718768][ T5306] path_setxattr+0x130/0x260 [ 80.719584][ T5306] __arm64_sys_setxattr+0xbc/0xd8 [ 80.720512][ T5306] invoke_syscall+0x98/0x2b0 [ 80.721298][ T5306] el0_svc_common+0x138/0x258 [ 80.722131][ T5306] do_el0_svc+0x58/0x13c [ 80.722812][ T5306] el0_svc+0x78/0x1d0 [ 80.723471][ T5306] el0t_64_sync_handler+0xcc/0xe4 [ 80.724360][ T5306] el0t_64_sync+0x1a0/0x1a4 [ 80.761053][ T4754] ------------[ cut here ]------------ [ 80.761873][ T4754] WARNING: CPU: 0 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 80.763591][ T4754] Modules linked in: [ 80.764142][ T4754] CPU: 0 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 80.765519][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.767152][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.768480][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 80.769675][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 80.770819][ T4754] sp : ffff80001f317740 [ 80.771560][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001ad7000c [ 80.772990][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000001 [ 80.774383][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 80.775803][ T4754] x20: ffff0000d6b80060 x19: 0000000000000000 x18: 0000000000000000 [ 80.777304][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 80.778700][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 80.780079][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 80.781385][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 80.782831][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 80.784142][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 80.785486][ T4754] Call trace: [ 80.786039][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 80.787144][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 80.788136][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 80.789226][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 80.790150][ T4754] close_ctree+0x618/0x834 [ 80.790937][ T4754] btrfs_put_super+0x40/0x50 [ 80.791736][ T4754] generic_shutdown_super+0x130/0x2f0 [ 80.792554][ T4754] kill_anon_super+0x4c/0x80 [ 80.793309][ T4754] btrfs_kill_super+0x40/0x58 [ 80.794119][ T4754] deactivate_locked_super+0xb8/0x134 [ 80.795034][ T4754] deactivate_super+0xf0/0x110 [ 80.795936][ T4754] cleanup_mnt+0x3b8/0x46c [ 80.796747][ T4754] __cleanup_mnt+0x20/0x30 [ 80.797515][ T4754] task_work_run+0x12c/0x1d8 [ 80.798290][ T4754] do_notify_resume+0x2450/0x309c [ 80.799183][ T4754] el0_svc+0xf0/0x1d0 [ 80.799835][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 80.800726][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 80.801483][ T4754] irq event stamp: 510714 [ 80.802217][ T4754] hardirqs last enabled at (510713): [] kasan_quarantine_put+0xc4/0x200 [ 80.803887][ T4754] hardirqs last disabled at (510714): [] el1_dbg+0x24/0x80 [ 80.805353][ T4754] softirqs last enabled at (508472): [] handle_softirqs+0xa40/0xbe4 [ 80.806955][ T4754] softirqs last disabled at (508067): [] __irq_exit_rcu+0x240/0x43c [ 80.808552][ T4754] ---[ end trace 7717f1496c0e0690 ]--- [ 80.981822][ T5328] loop0: detected capacity change from 0 to 32768 [ 81.024925][ T5328] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.32 (5328) [ 81.029600][ T5328] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.031276][ T5328] BTRFS info (device loop0): metadata ratio 4 [ 81.032272][ T5328] BTRFS info (device loop0): setting incompat feature flag for COMPRESS_LZO (0x8) [ 81.033737][ T5328] BTRFS info (device loop0): force lzo compression, level 0 [ 81.035162][ T5328] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 81.036864][ T5328] BTRFS info (device loop0): trying to use backup root at mount time [ 81.038232][ T5328] BTRFS info (device loop0): enabling auto defrag [ 81.039299][ T5328] BTRFS info (device loop0): setting nodatacow [ 81.040395][ T5328] BTRFS info (device loop0): disabling tree log [ 81.041417][ T5328] BTRFS info (device loop0): using free space tree [ 81.042548][ T5328] BTRFS info (device loop0): has skinny extents [ 81.048465][ T136] BTRFS warning (device loop0): checksum verify failed on 5332992 wanted 0x0a5e5d25 found 0x26333c6f level 0 [ 81.050619][ T5328] BTRFS warning (device loop0): couldn't read tree root [ 81.051952][ T136] BTRFS warning (device loop0): checksum verify failed on 5324800 wanted 0x9f73850b found 0x78ca8373 level 0 [ 81.053961][ T5328] BTRFS warning (device loop0): couldn't read tree root [ 81.055406][ T5328] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 81.057025][ T5328] BTRFS warning (device loop0): couldn't read tree root [ 81.061324][ T5328] BTRFS info (device loop0): enabling ssd optimizations [ 81.062667][ T5328] BTRFS info (device loop0): clearing free space tree [ 81.063799][ T5328] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 81.065323][ T5328] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 81.069293][ T5328] BTRFS info (device loop0): creating free space tree [ 81.071110][ T5328] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 81.072558][ T5328] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 81.077404][ T5328] FAULT_INJECTION: forcing a failure. [ 81.077404][ T5328] name failslab, interval 1, probability 0, space 0, times 0 [ 81.079390][ T5328] CPU: 0 PID: 5328 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 81.080852][ T5328] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.082565][ T5328] Call trace: [ 81.083153][ T5328] dump_backtrace+0x0/0x458 [ 81.083960][ T5328] show_stack+0x2c/0x3c [ 81.084622][ T5328] __dump_stack+0x30/0x40 [ 81.085295][ T5328] dump_stack_lvl+0xf4/0x15c [ 81.086103][ T5328] dump_stack+0x1c/0x5c [ 81.086789][ T5328] should_fail+0x3bc/0x514 [ 81.087607][ T5328] __should_failslab+0xbc/0x10c [ 81.088416][ T5328] should_failslab+0x10/0x28 [ 81.089228][ T5328] slab_pre_alloc_hook+0x64/0xe8 [ 81.090128][ T5328] kmem_cache_alloc+0x94/0x3d4 [ 81.090927][ T5328] btrfs_alloc_tree_block+0xa3c/0x1130 [ 81.091913][ T5328] insert_new_root+0x244/0x8a4 [ 81.092799][ T5328] split_leaf+0xa44/0x1090 [ 81.093558][ T5328] btrfs_search_slot+0x1c1c/0x1f44 [ 81.094437][ T5328] btrfs_insert_empty_items+0x1d8/0x2a0 [ 81.095470][ T5328] insert_with_overflow+0xbc/0x248 [ 81.096336][ T5328] btrfs_insert_xattr_item+0x178/0x30c [ 81.097400][ T5328] btrfs_setxattr+0x3d8/0x8bc [ 81.098194][ T5328] btrfs_setxattr_trans+0xfc/0x354 [ 81.099115][ T5328] btrfs_xattr_handler_set+0xb0/0xd8 [ 81.099995][ T5328] __vfs_setxattr+0x384/0x3a0 [ 81.100759][ T5328] __vfs_setxattr_noperm+0x120/0x564 [ 81.101621][ T5328] __vfs_setxattr_locked+0x1ec/0x218 [ 81.102502][ T5328] vfs_setxattr+0x158/0x2ac [ 81.103212][ T5328] setxattr+0x278/0x2f8 [ 81.103972][ T5328] path_setxattr+0x130/0x260 [ 81.104733][ T5328] __arm64_sys_setxattr+0xbc/0xd8 [ 81.105616][ T5328] invoke_syscall+0x98/0x2b0 [ 81.106370][ T5328] el0_svc_common+0x138/0x258 [ 81.107117][ T5328] do_el0_svc+0x58/0x13c [ 81.107797][ T5328] el0_svc+0x78/0x1d0 [ 81.108520][ T5328] el0t_64_sync_handler+0xcc/0xe4 [ 81.109392][ T5328] el0t_64_sync+0x1a0/0x1a4 [ 81.147876][ T4754] ------------[ cut here ]------------ [ 81.148712][ T4754] WARNING: CPU: 0 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 81.150653][ T4754] Modules linked in: [ 81.151328][ T4754] CPU: 0 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 81.152878][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.154593][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.155978][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 81.157135][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 81.158363][ T4754] sp : ffff80001f317740 [ 81.159063][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001aede70c [ 81.160515][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000001 [ 81.161912][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 81.163219][ T4754] x20: ffff0000d76f3860 x19: 0000000000000000 x18: 0000000000000000 [ 81.164624][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 81.165999][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 81.167112][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 81.168372][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 81.169746][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 81.171091][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 81.172450][ T4754] Call trace: [ 81.172990][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 81.174072][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 81.174958][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 81.176000][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 81.176917][ T4754] close_ctree+0x618/0x834 [ 81.177637][ T4754] btrfs_put_super+0x40/0x50 [ 81.178407][ T4754] generic_shutdown_super+0x130/0x2f0 [ 81.179220][ T4754] kill_anon_super+0x4c/0x80 [ 81.180010][ T4754] btrfs_kill_super+0x40/0x58 [ 81.180788][ T4754] deactivate_locked_super+0xb8/0x134 [ 81.181747][ T4754] deactivate_super+0xf0/0x110 [ 81.182507][ T4754] cleanup_mnt+0x3b8/0x46c [ 81.183272][ T4754] __cleanup_mnt+0x20/0x30 [ 81.184025][ T4754] task_work_run+0x12c/0x1d8 [ 81.184842][ T4754] do_notify_resume+0x2450/0x309c [ 81.185764][ T4754] el0_svc+0xf0/0x1d0 [ 81.186490][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 81.187354][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 81.188216][ T4754] irq event stamp: 537088 [ 81.188959][ T4754] hardirqs last enabled at (537087): [] kasan_quarantine_put+0xc4/0x200 [ 81.190723][ T4754] hardirqs last disabled at (537088): [] el1_dbg+0x24/0x80 [ 81.192143][ T4754] softirqs last enabled at (536656): [] handle_softirqs+0xa40/0xbe4 [ 81.193733][ T4754] softirqs last disabled at (536567): [] __irq_exit_rcu+0x240/0x43c [ 81.195395][ T4754] ---[ end trace 7717f1496c0e0691 ]--- [ 81.350969][ T5350] loop0: detected capacity change from 0 to 32768 [ 81.395015][ T5350] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.33 (5350) [ 81.400997][ T5350] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.402609][ T5350] BTRFS info (device loop0): metadata ratio 4 [ 81.403644][ T5350] BTRFS info (device loop0): setting incompat feature flag for COMPRESS_LZO (0x8) [ 81.405262][ T5350] BTRFS info (device loop0): force lzo compression, level 0 [ 81.406438][ T5350] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 81.408256][ T5350] BTRFS info (device loop0): trying to use backup root at mount time [ 81.410612][ T5350] BTRFS info (device loop0): enabling auto defrag [ 81.411915][ T5350] BTRFS info (device loop0): setting nodatacow [ 81.412895][ T5350] BTRFS info (device loop0): disabling tree log [ 81.413889][ T5350] BTRFS info (device loop0): using free space tree [ 81.414996][ T5350] BTRFS info (device loop0): has skinny extents [ 81.421067][ T5350] BTRFS warning (device loop0): couldn't read tree root [ 81.422426][ T5350] BTRFS warning (device loop0): couldn't read tree root [ 81.423747][ T5350] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 81.425243][ T5350] BTRFS warning (device loop0): couldn't read tree root [ 81.440281][ T5350] BTRFS info (device loop0): enabling ssd optimizations [ 81.441925][ T5350] BTRFS info (device loop0): clearing free space tree [ 81.443050][ T5350] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 81.444618][ T5350] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 81.448139][ T5350] BTRFS info (device loop0): creating free space tree [ 81.449536][ T5350] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 81.452323][ T5350] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 81.457373][ T5350] FAULT_INJECTION: forcing a failure. [ 81.457373][ T5350] name failslab, interval 1, probability 0, space 0, times 0 [ 81.459438][ T5350] CPU: 1 PID: 5350 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 81.460956][ T5350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.462683][ T5350] Call trace: [ 81.463216][ T5350] dump_backtrace+0x0/0x458 [ 81.463985][ T5350] show_stack+0x2c/0x3c [ 81.464798][ T5350] __dump_stack+0x30/0x40 [ 81.465557][ T5350] dump_stack_lvl+0xf4/0x15c [ 81.466333][ T5350] dump_stack+0x1c/0x5c [ 81.467093][ T5350] should_fail+0x3bc/0x514 [ 81.467892][ T5350] __should_failslab+0xbc/0x10c [ 81.468703][ T5350] should_failslab+0x10/0x28 [ 81.469442][ T5350] slab_pre_alloc_hook+0x64/0xe8 [ 81.470313][ T5350] kmem_cache_alloc+0x94/0x3d4 [ 81.471174][ T5350] btrfs_alloc_tree_block+0xa3c/0x1130 [ 81.472084][ T5350] insert_new_root+0x244/0x8a4 [ 81.472942][ T5350] split_leaf+0xa44/0x1090 [ 81.473705][ T5350] btrfs_search_slot+0x1c1c/0x1f44 [ 81.474621][ T5350] btrfs_insert_empty_items+0x1d8/0x2a0 [ 81.475578][ T5350] insert_with_overflow+0xbc/0x248 [ 81.476431][ T5350] btrfs_insert_xattr_item+0x178/0x30c [ 81.477350][ T5350] btrfs_setxattr+0x3d8/0x8bc [ 81.478184][ T5350] btrfs_setxattr_trans+0xfc/0x354 [ 81.479085][ T5350] btrfs_xattr_handler_set+0xb0/0xd8 [ 81.479994][ T5350] __vfs_setxattr+0x384/0x3a0 [ 81.480782][ T5350] __vfs_setxattr_noperm+0x120/0x564 [ 81.481688][ T5350] __vfs_setxattr_locked+0x1ec/0x218 [ 81.482579][ T5350] vfs_setxattr+0x158/0x2ac [ 81.483355][ T5350] setxattr+0x278/0x2f8 [ 81.484129][ T5350] path_setxattr+0x130/0x260 [ 81.484895][ T5350] __arm64_sys_setxattr+0xbc/0xd8 [ 81.485788][ T5350] invoke_syscall+0x98/0x2b0 [ 81.486638][ T5350] el0_svc_common+0x138/0x258 [ 81.487418][ T5350] do_el0_svc+0x58/0x13c [ 81.488191][ T5350] el0_svc+0x78/0x1d0 [ 81.488888][ T5350] el0t_64_sync_handler+0xcc/0xe4 [ 81.489744][ T5350] el0t_64_sync+0x1a0/0x1a4 [ 81.527448][ T4754] ------------[ cut here ]------------ [ 81.528326][ T4754] WARNING: CPU: 1 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 81.530074][ T4754] Modules linked in: [ 81.530784][ T4754] CPU: 1 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 81.532328][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.534061][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.535383][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 81.536671][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 81.537889][ T4754] sp : ffff80001f317740 [ 81.538565][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001aef100c [ 81.539968][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000002 [ 81.541388][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 81.542785][ T4754] x20: ffff0000d7788060 x19: 0000000000000000 x18: 0000000000000000 [ 81.544145][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 81.545554][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 81.546954][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 81.548415][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 81.549844][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 81.551206][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 81.552538][ T4754] Call trace: [ 81.553089][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 81.554248][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 81.555079][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 81.556051][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 81.556941][ T4754] close_ctree+0x618/0x834 [ 81.557707][ T4754] btrfs_put_super+0x40/0x50 [ 81.558517][ T4754] generic_shutdown_super+0x130/0x2f0 [ 81.559449][ T4754] kill_anon_super+0x4c/0x80 [ 81.560200][ T4754] btrfs_kill_super+0x40/0x58 [ 81.560993][ T4754] deactivate_locked_super+0xb8/0x134 [ 81.561925][ T4754] deactivate_super+0xf0/0x110 [ 81.562809][ T4754] cleanup_mnt+0x3b8/0x46c [ 81.563539][ T4754] __cleanup_mnt+0x20/0x30 [ 81.564295][ T4754] task_work_run+0x12c/0x1d8 [ 81.565093][ T4754] do_notify_resume+0x2450/0x309c [ 81.565970][ T4754] el0_svc+0xf0/0x1d0 [ 81.566660][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 81.567481][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 81.568473][ T4754] irq event stamp: 564148 [ 81.569205][ T4754] hardirqs last enabled at (564147): [] kasan_quarantine_put+0xc4/0x200 [ 81.570929][ T4754] hardirqs last disabled at (564148): [] el1_dbg+0x24/0x80 [ 81.572338][ T4754] softirqs last enabled at (562970): [] handle_softirqs+0xa40/0xbe4 [ 81.573898][ T4754] softirqs last disabled at (562959): [] __irq_exit_rcu+0x240/0x43c [ 81.575571][ T4754] ---[ end trace 7717f1496c0e0692 ]--- [ 81.723901][ T5372] loop0: detected capacity change from 0 to 32768 [ 81.761317][ T5372] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.34 (5372) [ 81.823021][ T5372] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.824620][ T5372] BTRFS info (device loop0): metadata ratio 4 [ 81.825642][ T5372] BTRFS info (device loop0): setting incompat feature flag for COMPRESS_LZO (0x8) [ 81.827124][ T5372] BTRFS info (device loop0): force lzo compression, level 0 [ 81.828370][ T5372] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 81.830144][ T5372] BTRFS info (device loop0): trying to use backup root at mount time [ 81.831551][ T5372] BTRFS info (device loop0): enabling auto defrag [ 81.832638][ T5372] BTRFS info (device loop0): setting nodatacow [ 81.833680][ T5372] BTRFS info (device loop0): disabling tree log [ 81.839679][ T5372] BTRFS warning (device loop0): couldn't read tree root [ 81.841215][ T5372] BTRFS warning (device loop0): couldn't read tree root [ 81.842562][ T5372] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 81.844154][ T5372] BTRFS warning (device loop0): couldn't read tree root [ 81.853335][ T5372] FAULT_INJECTION: forcing a failure. [ 81.853335][ T5372] name failslab, interval 1, probability 0, space 0, times 0 [ 81.855483][ T5372] CPU: 1 PID: 5372 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 81.856865][ T5372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.858486][ T5372] Call trace: [ 81.859141][ T5372] dump_backtrace+0x0/0x458 [ 81.859868][ T5372] show_stack+0x2c/0x3c [ 81.860569][ T5372] __dump_stack+0x30/0x40 [ 81.861253][ T5372] dump_stack_lvl+0xf4/0x15c [ 81.862003][ T5372] dump_stack+0x1c/0x5c [ 81.862714][ T5372] should_fail+0x3bc/0x514 [ 81.863449][ T5372] __should_failslab+0xbc/0x10c [ 81.864328][ T5372] should_failslab+0x10/0x28 [ 81.865180][ T5372] slab_pre_alloc_hook+0x64/0xe8 [ 81.865984][ T5372] kmem_cache_alloc+0x94/0x3d4 [ 81.866784][ T5372] btrfs_alloc_tree_block+0xa3c/0x1130 [ 81.867696][ T5372] insert_new_root+0x244/0x8a4 [ 81.868486][ T5372] split_leaf+0xa44/0x1090 [ 81.869289][ T5372] btrfs_search_slot+0x1c1c/0x1f44 [ 81.870061][ T5372] btrfs_insert_empty_items+0x1d8/0x2a0 [ 81.870958][ T5372] insert_with_overflow+0xbc/0x248 [ 81.871807][ T5372] btrfs_insert_xattr_item+0x178/0x30c [ 81.872723][ T5372] btrfs_setxattr+0x3d8/0x8bc [ 81.873534][ T5372] btrfs_setxattr_trans+0xfc/0x354 [ 81.874373][ T5372] btrfs_xattr_handler_set+0xb0/0xd8 [ 81.875261][ T5372] __vfs_setxattr+0x384/0x3a0 [ 81.876106][ T5372] __vfs_setxattr_noperm+0x120/0x564 [ 81.876993][ T5372] __vfs_setxattr_locked+0x1ec/0x218 [ 81.877950][ T5372] vfs_setxattr+0x158/0x2ac [ 81.878762][ T5372] setxattr+0x278/0x2f8 [ 81.879532][ T5372] path_setxattr+0x130/0x260 [ 81.880245][ T5372] __arm64_sys_setxattr+0xbc/0xd8 [ 81.881091][ T5372] invoke_syscall+0x98/0x2b0 [ 81.881846][ T5372] el0_svc_common+0x138/0x258 [ 81.882607][ T5372] do_el0_svc+0x58/0x13c [ 81.883313][ T5372] el0_svc+0x78/0x1d0 [ 81.884061][ T5372] el0t_64_sync_handler+0xcc/0xe4 [ 81.884869][ T5372] el0t_64_sync+0x1a0/0x1a4 [ 81.922995][ T4754] ------------[ cut here ]------------ [ 81.923904][ T4754] WARNING: CPU: 0 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 81.925783][ T4754] Modules linked in: [ 81.926493][ T4754] CPU: 0 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 81.927935][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.929625][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.930950][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 81.932140][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 81.933371][ T4754] sp : ffff80001f317740 [ 81.934098][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe00019a00b0c [ 81.935375][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000001 [ 81.936684][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 81.937996][ T4754] x20: ffff0000cd005860 x19: 0000000000000000 x18: 0000000000000000 [ 81.939327][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 81.940704][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 81.942103][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 81.943575][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 81.945015][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 81.946383][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 81.947813][ T4754] Call trace: [ 81.948400][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 81.949565][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 81.950507][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 81.951514][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 81.952452][ T4754] close_ctree+0x618/0x834 [ 81.953239][ T4754] btrfs_put_super+0x40/0x50 [ 81.954018][ T4754] generic_shutdown_super+0x130/0x2f0 [ 81.954916][ T4754] kill_anon_super+0x4c/0x80 [ 81.955728][ T4754] btrfs_kill_super+0x40/0x58 [ 81.956455][ T4754] deactivate_locked_super+0xb8/0x134 [ 81.957363][ T4754] deactivate_super+0xf0/0x110 [ 81.958210][ T4754] cleanup_mnt+0x3b8/0x46c [ 81.958921][ T4754] __cleanup_mnt+0x20/0x30 [ 81.959721][ T4754] task_work_run+0x12c/0x1d8 [ 81.960449][ T4754] do_notify_resume+0x2450/0x309c [ 81.961273][ T4754] el0_svc+0xf0/0x1d0 [ 81.961918][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 81.962826][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 81.963665][ T4754] irq event stamp: 590360 [ 81.964382][ T4754] hardirqs last enabled at (590359): [] kasan_quarantine_put+0xc4/0x200 [ 81.966113][ T4754] hardirqs last disabled at (590360): [] el1_dbg+0x24/0x80 [ 81.967622][ T4754] softirqs last enabled at (587524): [] local_bh_enable+0x10/0x34 [ 81.969252][ T4754] softirqs last disabled at (587522): [] local_bh_disable+0x10/0x34 [ 81.970757][ T4754] ---[ end trace 7717f1496c0e0693 ]--- [ 82.148765][ T5393] loop0: detected capacity change from 0 to 32768 [ 82.156551][ T5393] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.35 (5393) [ 82.160191][ T5393] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 82.168176][ T5393] BTRFS warning (device loop0): couldn't read tree root [ 82.170441][ T5393] BTRFS warning (device loop0): couldn't read tree root [ 82.171666][ T5393] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 82.173411][ T5393] BTRFS warning (device loop0): couldn't read tree root [ 82.183214][ T5393] FAULT_INJECTION: forcing a failure. [ 82.183214][ T5393] name failslab, interval 1, probability 0, space 0, times 0 [ 82.185523][ T5393] CPU: 0 PID: 5393 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 82.187056][ T5393] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.188705][ T5393] Call trace: [ 82.189232][ T5393] dump_backtrace+0x0/0x458 [ 82.190004][ T5393] show_stack+0x2c/0x3c [ 82.190746][ T5393] __dump_stack+0x30/0x40 [ 82.191419][ T5393] dump_stack_lvl+0xf4/0x15c [ 82.192180][ T5393] dump_stack+0x1c/0x5c [ 82.192871][ T5393] should_fail+0x3bc/0x514 [ 82.193634][ T5393] __should_failslab+0xbc/0x10c [ 82.194427][ T5393] should_failslab+0x10/0x28 [ 82.195170][ T5393] slab_pre_alloc_hook+0x64/0xe8 [ 82.195939][ T5393] kmem_cache_alloc+0x94/0x3d4 [ 82.196735][ T5393] btrfs_alloc_tree_block+0xa3c/0x1130 [ 82.197656][ T5393] insert_new_root+0x244/0x8a4 [ 82.198516][ T5393] split_leaf+0xa44/0x1090 [ 82.199194][ T5393] btrfs_search_slot+0x1c1c/0x1f44 [ 82.200064][ T5393] btrfs_insert_empty_items+0x1d8/0x2a0 [ 82.201000][ T5393] insert_with_overflow+0xbc/0x248 [ 82.201853][ T5393] btrfs_insert_xattr_item+0x178/0x30c [ 82.202770][ T5393] btrfs_setxattr+0x3d8/0x8bc [ 82.203538][ T5393] btrfs_setxattr_trans+0xfc/0x354 [ 82.204348][ T5393] btrfs_xattr_handler_set+0xb0/0xd8 [ 82.205286][ T5393] __vfs_setxattr+0x384/0x3a0 [ 82.206043][ T5393] __vfs_setxattr_noperm+0x120/0x564 [ 82.206924][ T5393] __vfs_setxattr_locked+0x1ec/0x218 [ 82.207852][ T5393] vfs_setxattr+0x158/0x2ac [ 82.208596][ T5393] setxattr+0x278/0x2f8 [ 82.209376][ T5393] path_setxattr+0x130/0x260 [ 82.210146][ T5393] __arm64_sys_setxattr+0xbc/0xd8 [ 82.211027][ T5393] invoke_syscall+0x98/0x2b0 [ 82.211832][ T5393] el0_svc_common+0x138/0x258 [ 82.212618][ T5393] do_el0_svc+0x58/0x13c [ 82.213359][ T5393] el0_svc+0x78/0x1d0 [ 82.214006][ T5393] el0t_64_sync_handler+0xcc/0xe4 [ 82.214789][ T5393] el0t_64_sync+0x1a0/0x1a4 [ 82.257057][ T4754] ------------[ cut here ]------------ [ 82.257983][ T4754] WARNING: CPU: 0 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 82.259872][ T4754] Modules linked in: [ 82.260522][ T4754] CPU: 0 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 82.262093][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.263862][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.265209][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 82.266416][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 82.267631][ T4754] sp : ffff80001f317740 [ 82.268356][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001818e40c [ 82.269737][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000001 [ 82.271096][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 82.272486][ T4754] x20: ffff0000c0c72060 x19: 0000000000000000 x18: 0000000000000000 [ 82.273870][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 82.275175][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 82.276613][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 82.277979][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 82.279366][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 82.280710][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 82.281855][ T4754] Call trace: [ 82.282421][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 82.283437][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 82.284346][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 82.285362][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 82.286201][ T4754] close_ctree+0x618/0x834 [ 82.286817][ T4754] btrfs_put_super+0x40/0x50 [ 82.287597][ T4754] generic_shutdown_super+0x130/0x2f0 [ 82.288506][ T4754] kill_anon_super+0x4c/0x80 [ 82.289318][ T4754] btrfs_kill_super+0x40/0x58 [ 82.290095][ T4754] deactivate_locked_super+0xb8/0x134 [ 82.291052][ T4754] deactivate_super+0xf0/0x110 [ 82.291870][ T4754] cleanup_mnt+0x3b8/0x46c [ 82.292616][ T4754] __cleanup_mnt+0x20/0x30 [ 82.293296][ T4754] task_work_run+0x12c/0x1d8 [ 82.294047][ T4754] do_notify_resume+0x2450/0x309c [ 82.294929][ T4754] el0_svc+0xf0/0x1d0 [ 82.295596][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 82.296585][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 82.297405][ T4754] irq event stamp: 615662 [ 82.298166][ T4754] hardirqs last enabled at (615661): [] kasan_quarantine_put+0xc4/0x200 [ 82.299959][ T4754] hardirqs last disabled at (615662): [] el1_dbg+0x24/0x80 [ 82.301466][ T4754] softirqs last enabled at (613254): [] local_bh_enable+0x10/0x34 [ 82.303006][ T4754] softirqs last disabled at (613252): [] local_bh_disable+0x10/0x34 [ 82.304709][ T4754] ---[ end trace 7717f1496c0e0694 ]--- [ 82.483439][ T5415] loop0: detected capacity change from 0 to 32768 [ 82.548706][ T5415] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.36 (5415) [ 82.557930][ T5415] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 82.565751][ T5415] BTRFS warning (device loop0): couldn't read tree root [ 82.567155][ T5415] BTRFS warning (device loop0): couldn't read tree root [ 82.568515][ T5415] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 82.570483][ T5415] BTRFS warning (device loop0): couldn't read tree root [ 82.579583][ T5415] FAULT_INJECTION: forcing a failure. [ 82.579583][ T5415] name failslab, interval 1, probability 0, space 0, times 0 [ 82.583285][ T5415] CPU: 0 PID: 5415 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 82.584617][ T5415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.586256][ T5415] Call trace: [ 82.586758][ T5415] dump_backtrace+0x0/0x458 [ 82.587433][ T5415] show_stack+0x2c/0x3c [ 82.588044][ T5415] __dump_stack+0x30/0x40 [ 82.588748][ T5415] dump_stack_lvl+0xf4/0x15c [ 82.589510][ T5415] dump_stack+0x1c/0x5c [ 82.590219][ T5415] should_fail+0x3bc/0x514 [ 82.590967][ T5415] __should_failslab+0xbc/0x10c [ 82.591806][ T5415] should_failslab+0x10/0x28 [ 82.592548][ T5415] slab_pre_alloc_hook+0x64/0xe8 [ 82.593367][ T5415] kmem_cache_alloc+0x94/0x3d4 [ 82.594118][ T5415] btrfs_alloc_tree_block+0xa3c/0x1130 [ 82.594991][ T5415] insert_new_root+0x244/0x8a4 [ 82.595787][ T5415] split_leaf+0xa44/0x1090 [ 82.596485][ T5415] btrfs_search_slot+0x1c1c/0x1f44 [ 82.597266][ T5415] btrfs_insert_empty_items+0x1d8/0x2a0 [ 82.598128][ T5415] insert_with_overflow+0xbc/0x248 [ 82.598875][ T5415] btrfs_insert_xattr_item+0x178/0x30c [ 82.599684][ T5415] btrfs_setxattr+0x3d8/0x8bc [ 82.600370][ T5415] btrfs_setxattr_trans+0xfc/0x354 [ 82.601165][ T5415] btrfs_xattr_handler_set+0xb0/0xd8 [ 82.601960][ T5415] __vfs_setxattr+0x384/0x3a0 [ 82.602651][ T5415] __vfs_setxattr_noperm+0x120/0x564 [ 82.603475][ T5415] __vfs_setxattr_locked+0x1ec/0x218 [ 82.604282][ T5415] vfs_setxattr+0x158/0x2ac [ 82.605019][ T5415] setxattr+0x278/0x2f8 [ 82.605617][ T5415] path_setxattr+0x130/0x260 [ 82.606299][ T5415] __arm64_sys_setxattr+0xbc/0xd8 [ 82.607121][ T5415] invoke_syscall+0x98/0x2b0 [ 82.607863][ T5415] el0_svc_common+0x138/0x258 [ 82.608661][ T5415] do_el0_svc+0x58/0x13c [ 82.609369][ T5415] el0_svc+0x78/0x1d0 [ 82.610026][ T5415] el0t_64_sync_handler+0xcc/0xe4 [ 82.610874][ T5415] el0t_64_sync+0x1a0/0x1a4 [ 82.648869][ T4754] ------------[ cut here ]------------ [ 82.649732][ T4754] WARNING: CPU: 0 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 82.651487][ T4754] Modules linked in: [ 82.652061][ T4754] CPU: 0 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 82.653420][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.654935][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.656077][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 82.657121][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 82.658192][ T4754] sp : ffff80001f317740 [ 82.658812][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001b38680c [ 82.660040][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000001 [ 82.661332][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 82.662694][ T4754] x20: ffff0000d9c34060 x19: 0000000000000000 x18: 0000000000000000 [ 82.664028][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 82.665376][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 82.666691][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 82.668030][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 82.669284][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 82.670589][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 82.671956][ T4754] Call trace: [ 82.672480][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 82.673579][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 82.674476][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 82.675501][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 82.676429][ T4754] close_ctree+0x618/0x834 [ 82.677186][ T4754] btrfs_put_super+0x40/0x50 [ 82.677941][ T4754] generic_shutdown_super+0x130/0x2f0 [ 82.678821][ T4754] kill_anon_super+0x4c/0x80 [ 82.679561][ T4754] btrfs_kill_super+0x40/0x58 [ 82.680330][ T4754] deactivate_locked_super+0xb8/0x134 [ 82.681202][ T4754] deactivate_super+0xf0/0x110 [ 82.682001][ T4754] cleanup_mnt+0x3b8/0x46c [ 82.682716][ T4754] __cleanup_mnt+0x20/0x30 [ 82.683466][ T4754] task_work_run+0x12c/0x1d8 [ 82.684190][ T4754] do_notify_resume+0x2450/0x309c [ 82.684987][ T4754] el0_svc+0xf0/0x1d0 [ 82.685613][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 82.686391][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 82.687085][ T4754] irq event stamp: 642220 [ 82.687760][ T4754] hardirqs last enabled at (642219): [] kasan_quarantine_put+0xc4/0x200 [ 82.689503][ T4754] hardirqs last disabled at (642220): [] el1_dbg+0x24/0x80 [ 82.691070][ T4754] softirqs last enabled at (640472): [] handle_softirqs+0xa40/0xbe4 [ 82.692726][ T4754] softirqs last disabled at (640413): [] __irq_exit_rcu+0x240/0x43c [ 82.694301][ T4754] ---[ end trace 7717f1496c0e0695 ]--- [ 82.854283][ T5437] loop0: detected capacity change from 0 to 32768 [ 82.931438][ T5437] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.37 (5437) [ 82.970977][ T5437] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 82.978944][ T5437] BTRFS warning (device loop0): couldn't read tree root [ 82.980683][ T5437] BTRFS warning (device loop0): couldn't read tree root [ 82.982160][ T5437] BTRFS error (device loop0): parent transid verify failed on 5255168 wanted 5 found 7 [ 82.983816][ T5437] BTRFS warning (device loop0): couldn't read tree root [ 82.992868][ T5437] FAULT_INJECTION: forcing a failure. [ 82.992868][ T5437] name failslab, interval 1, probability 0, space 0, times 0 [ 82.995010][ T5437] CPU: 0 PID: 5437 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 82.996416][ T5437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.998253][ T5437] Call trace: [ 82.998841][ T5437] dump_backtrace+0x0/0x458 [ 82.999660][ T5437] show_stack+0x2c/0x3c [ 83.000397][ T5437] __dump_stack+0x30/0x40 [ 83.001195][ T5437] dump_stack_lvl+0xf4/0x15c [ 83.002030][ T5437] dump_stack+0x1c/0x5c [ 83.002848][ T5437] should_fail+0x3bc/0x514 [ 83.003660][ T5437] __should_failslab+0xbc/0x10c [ 83.004674][ T5437] should_failslab+0x10/0x28 [ 83.005491][ T5437] slab_pre_alloc_hook+0x64/0xe8 [ 83.006314][ T5437] kmem_cache_alloc+0x94/0x3d4 [ 83.007119][ T5437] btrfs_alloc_tree_block+0xa3c/0x1130 [ 83.008051][ T5437] insert_new_root+0x244/0x8a4 [ 83.008816][ T5437] split_leaf+0xa44/0x1090 [ 83.009557][ T5437] btrfs_search_slot+0x1c1c/0x1f44 [ 83.010422][ T5437] btrfs_insert_empty_items+0x1d8/0x2a0 [ 83.011482][ T5437] insert_with_overflow+0xbc/0x248 [ 83.012314][ T5437] btrfs_insert_xattr_item+0x178/0x30c [ 83.013260][ T5437] btrfs_setxattr+0x3d8/0x8bc [ 83.014052][ T5437] btrfs_setxattr_trans+0xfc/0x354 [ 83.014982][ T5437] btrfs_xattr_handler_set+0xb0/0xd8 [ 83.015896][ T5437] __vfs_setxattr+0x384/0x3a0 [ 83.016687][ T5437] __vfs_setxattr_noperm+0x120/0x564 [ 83.017504][ T5437] __vfs_setxattr_locked+0x1ec/0x218 [ 83.018390][ T5437] vfs_setxattr+0x158/0x2ac [ 83.019168][ T5437] setxattr+0x278/0x2f8 [ 83.019940][ T5437] path_setxattr+0x130/0x260 [ 83.020764][ T5437] __arm64_sys_setxattr+0xbc/0xd8 [ 83.021705][ T5437] invoke_syscall+0x98/0x2b0 [ 83.022468][ T5437] el0_svc_common+0x138/0x258 [ 83.023281][ T5437] do_el0_svc+0x58/0x13c [ 83.023995][ T5437] el0_svc+0x78/0x1d0 [ 83.024723][ T5437] el0t_64_sync_handler+0xcc/0xe4 [ 83.025594][ T5437] el0t_64_sync+0x1a0/0x1a4 [ 83.066680][ T4754] ------------[ cut here ]------------ [ 83.067514][ T4754] WARNING: CPU: 1 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 83.069426][ T4754] Modules linked in: [ 83.070111][ T4754] CPU: 1 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 83.071571][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.073253][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.074690][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 83.075957][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 83.077090][ T4754] sp : ffff80001f317740 [ 83.077735][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001a18630c [ 83.078972][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000002 [ 83.080340][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 83.081679][ T4754] x20: ffff0000d0c31860 x19: 0000000000000000 x18: 0000000000000000 [ 83.083045][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 83.084490][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 83.085837][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 83.087291][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 83.088705][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 83.090079][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 83.091463][ T4754] Call trace: [ 83.092020][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 83.093130][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 83.094105][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 83.095109][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 83.096068][ T4754] close_ctree+0x618/0x834 [ 83.096863][ T4754] btrfs_put_super+0x40/0x50 [ 83.097671][ T4754] generic_shutdown_super+0x130/0x2f0 [ 83.098602][ T4754] kill_anon_super+0x4c/0x80 [ 83.099394][ T4754] btrfs_kill_super+0x40/0x58 [ 83.100192][ T4754] deactivate_locked_super+0xb8/0x134 [ 83.101060][ T4754] deactivate_super+0xf0/0x110 [ 83.101782][ T4754] cleanup_mnt+0x3b8/0x46c [ 83.102452][ T4754] __cleanup_mnt+0x20/0x30 [ 83.103149][ T4754] task_work_run+0x12c/0x1d8 [ 83.103882][ T4754] do_notify_resume+0x2450/0x309c [ 83.104713][ T4754] el0_svc+0xf0/0x1d0 [ 83.105364][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 83.106149][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 83.106876][ T4754] irq event stamp: 668554 [ 83.107617][ T4754] hardirqs last enabled at (668553): [] kasan_quarantine_put+0xc4/0x200 [ 83.109254][ T4754] hardirqs last disabled at (668554): [] el1_dbg+0x24/0x80 [ 83.110757][ T4754] softirqs last enabled at (668444): [] handle_softirqs+0xa40/0xbe4 [ 83.112256][ T4754] softirqs last disabled at (668391): [] __irq_exit_rcu+0x240/0x43c [ 83.113718][ T4754] ---[ end trace 7717f1496c0e0696 ]--- [ 83.261172][ T5458] loop0: detected capacity change from 0 to 32768 [ 83.302814][ T5458] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.38 (5458) [ 83.306083][ T5458] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 83.313455][ T5458] BTRFS warning (device loop0): couldn't read tree root [ 83.315226][ T5458] BTRFS warning (device loop0): couldn't read tree root [ 83.317184][ T5458] BTRFS warning (device loop0): couldn't read tree root [ 83.328950][ T5458] FAULT_INJECTION: forcing a failure. [ 83.328950][ T5458] name failslab, interval 1, probability 0, space 0, times 0 [ 83.331298][ T5458] CPU: 1 PID: 5458 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 83.332687][ T5458] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.334487][ T5458] Call trace: [ 83.335001][ T5458] dump_backtrace+0x0/0x458 [ 83.335793][ T5458] show_stack+0x2c/0x3c [ 83.336544][ T5458] __dump_stack+0x30/0x40 [ 83.337322][ T5458] dump_stack_lvl+0xf4/0x15c [ 83.338112][ T5458] dump_stack+0x1c/0x5c [ 83.338816][ T5458] should_fail+0x3bc/0x514 [ 83.339524][ T5458] __should_failslab+0xbc/0x10c [ 83.340398][ T5458] should_failslab+0x10/0x28 [ 83.341166][ T5458] slab_pre_alloc_hook+0x64/0xe8 [ 83.341957][ T5458] kmem_cache_alloc+0x94/0x3d4 [ 83.342726][ T5458] alloc_extent_state+0x38/0x42c [ 83.343593][ T5458] set_extent_bit+0x1b0/0x1378 [ 83.344403][ T5458] btrfs_alloc_tree_block+0x998/0x1130 [ 83.345371][ T5458] insert_new_root+0x244/0x8a4 [ 83.346112][ T5458] split_leaf+0xa44/0x1090 [ 83.346820][ T5458] btrfs_search_slot+0x1c1c/0x1f44 [ 83.347756][ T5458] btrfs_insert_empty_items+0x1d8/0x2a0 [ 83.348726][ T5458] insert_with_overflow+0xbc/0x248 [ 83.349553][ T5458] btrfs_insert_xattr_item+0x178/0x30c [ 83.350495][ T5458] btrfs_setxattr+0x3d8/0x8bc [ 83.351305][ T5458] btrfs_setxattr_trans+0xfc/0x354 [ 83.352168][ T5458] btrfs_xattr_handler_set+0xb0/0xd8 [ 83.353060][ T5458] __vfs_setxattr+0x384/0x3a0 [ 83.353918][ T5458] __vfs_setxattr_noperm+0x120/0x564 [ 83.354778][ T5458] __vfs_setxattr_locked+0x1ec/0x218 [ 83.355710][ T5458] vfs_setxattr+0x158/0x2ac [ 83.356452][ T5458] setxattr+0x278/0x2f8 [ 83.357216][ T5458] path_setxattr+0x130/0x260 [ 83.357956][ T5458] __arm64_sys_setxattr+0xbc/0xd8 [ 83.358763][ T5458] invoke_syscall+0x98/0x2b0 [ 83.359472][ T5458] el0_svc_common+0x138/0x258 [ 83.360319][ T5458] do_el0_svc+0x58/0x13c [ 83.361079][ T5458] el0_svc+0x78/0x1d0 [ 83.361732][ T5458] el0t_64_sync_handler+0xcc/0xe4 [ 83.362588][ T5458] el0t_64_sync+0x1a0/0x1a4 [ 83.519900][ T5480] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.39 (5480) [ 83.523659][ T5480] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 83.531200][ T5480] BTRFS warning (device loop0): couldn't read tree root [ 83.532484][ T5480] BTRFS warning (device loop0): couldn't read tree root [ 83.533861][ T5480] BTRFS warning (device loop0): couldn't read tree root [ 83.542166][ T5480] FAULT_INJECTION: forcing a failure. [ 83.542166][ T5480] name failslab, interval 1, probability 0, space 0, times 0 [ 83.544320][ T5480] CPU: 1 PID: 5480 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 83.545770][ T5480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.547449][ T5480] Call trace: [ 83.547998][ T5480] dump_backtrace+0x0/0x458 [ 83.548751][ T5480] show_stack+0x2c/0x3c [ 83.549411][ T5480] __dump_stack+0x30/0x40 [ 83.550157][ T5480] dump_stack_lvl+0xf4/0x15c [ 83.550909][ T5480] dump_stack+0x1c/0x5c [ 83.551645][ T5480] should_fail+0x3bc/0x514 [ 83.552385][ T5480] __should_failslab+0xbc/0x10c [ 83.553202][ T5480] should_failslab+0x10/0x28 [ 83.553979][ T5480] slab_pre_alloc_hook+0x64/0xe8 [ 83.554898][ T5480] kmem_cache_alloc+0x94/0x3d4 [ 83.555720][ T5480] alloc_extent_state+0x38/0x42c [ 83.556535][ T5480] set_extent_bit+0x1b0/0x1378 [ 83.557362][ T5480] btrfs_alloc_tree_block+0x998/0x1130 [ 83.558288][ T5480] insert_new_root+0x244/0x8a4 [ 83.559171][ T5480] split_leaf+0xa44/0x1090 [ 83.559910][ T5480] btrfs_search_slot+0x1c1c/0x1f44 [ 83.560765][ T5480] btrfs_insert_empty_items+0x1d8/0x2a0 [ 83.561716][ T5480] insert_with_overflow+0xbc/0x248 [ 83.562623][ T5480] btrfs_insert_xattr_item+0x178/0x30c [ 83.563586][ T5480] btrfs_setxattr+0x3d8/0x8bc [ 83.564357][ T5480] btrfs_setxattr_trans+0xfc/0x354 [ 83.565313][ T5480] btrfs_xattr_handler_set+0xb0/0xd8 [ 83.566206][ T5480] __vfs_setxattr+0x384/0x3a0 [ 83.567046][ T5480] __vfs_setxattr_noperm+0x120/0x564 [ 83.568014][ T5480] __vfs_setxattr_locked+0x1ec/0x218 [ 83.568963][ T5480] vfs_setxattr+0x158/0x2ac [ 83.569742][ T5480] setxattr+0x278/0x2f8 [ 83.570442][ T5480] path_setxattr+0x130/0x260 [ 83.571230][ T5480] __arm64_sys_setxattr+0xbc/0xd8 [ 83.572092][ T5480] invoke_syscall+0x98/0x2b0 [ 83.572942][ T5480] el0_svc_common+0x138/0x258 [ 83.573714][ T5480] do_el0_svc+0x58/0x13c [ 83.574433][ T5480] el0_svc+0x78/0x1d0 [ 83.575076][ T5480] el0t_64_sync_handler+0xcc/0xe4 [ 83.575956][ T5480] el0t_64_sync+0x1a0/0x1a4 [ 83.771288][ T5502] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.40 (5502) [ 83.812995][ T5502] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 83.819373][ T5502] BTRFS warning (device loop0): couldn't read tree root [ 83.820904][ T5502] BTRFS warning (device loop0): couldn't read tree root [ 83.822232][ T5502] BTRFS warning (device loop0): couldn't read tree root [ 83.832030][ T5502] FAULT_INJECTION: forcing a failure. [ 83.832030][ T5502] name failslab, interval 1, probability 0, space 0, times 0 [ 83.834079][ T5502] CPU: 0 PID: 5502 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 83.835458][ T5502] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.837072][ T5502] Call trace: [ 83.837616][ T5502] dump_backtrace+0x0/0x458 [ 83.838389][ T5502] show_stack+0x2c/0x3c [ 83.839074][ T5502] __dump_stack+0x30/0x40 [ 83.839870][ T5502] dump_stack_lvl+0xf4/0x15c [ 83.840599][ T5502] dump_stack+0x1c/0x5c [ 83.841344][ T5502] should_fail+0x3bc/0x514 [ 83.842131][ T5502] __should_failslab+0xbc/0x10c [ 83.842959][ T5502] should_failslab+0x10/0x28 [ 83.843756][ T5502] slab_pre_alloc_hook+0x64/0xe8 [ 83.844593][ T5502] kmem_cache_alloc+0x94/0x3d4 [ 83.845467][ T5502] btrfs_alloc_tree_block+0xa3c/0x1130 [ 83.846419][ T5502] insert_new_root+0x244/0x8a4 [ 83.847194][ T5502] split_leaf+0xa44/0x1090 [ 83.847980][ T5502] btrfs_search_slot+0x1c1c/0x1f44 [ 83.848869][ T5502] btrfs_insert_empty_items+0x1d8/0x2a0 [ 83.849783][ T5502] insert_with_overflow+0xbc/0x248 [ 83.850697][ T5502] btrfs_insert_xattr_item+0x178/0x30c [ 83.851585][ T5502] btrfs_setxattr+0x3d8/0x8bc [ 83.852389][ T5502] btrfs_setxattr_trans+0xfc/0x354 [ 83.853257][ T5502] btrfs_xattr_handler_set+0xb0/0xd8 [ 83.854207][ T5502] __vfs_setxattr+0x384/0x3a0 [ 83.854987][ T5502] __vfs_setxattr_noperm+0x120/0x564 [ 83.855939][ T5502] __vfs_setxattr_locked+0x1ec/0x218 [ 83.856811][ T5502] vfs_setxattr+0x158/0x2ac [ 83.857641][ T5502] setxattr+0x278/0x2f8 [ 83.858403][ T5502] path_setxattr+0x130/0x260 [ 83.859179][ T5502] __arm64_sys_setxattr+0xbc/0xd8 [ 83.860014][ T5502] invoke_syscall+0x98/0x2b0 [ 83.860785][ T5502] el0_svc_common+0x138/0x258 [ 83.861591][ T5502] do_el0_svc+0x58/0x13c [ 83.862391][ T5502] el0_svc+0x78/0x1d0 [ 83.863116][ T5502] el0t_64_sync_handler+0xcc/0xe4 [ 83.864019][ T5502] el0t_64_sync+0x1a0/0x1a4 [ 83.903485][ T4754] ------------[ cut here ]------------ [ 83.904279][ T4754] WARNING: CPU: 0 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 83.906243][ T4754] Modules linked in: [ 83.906893][ T4754] CPU: 0 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 83.908364][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.910094][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.911443][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 83.912716][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 83.913979][ T4754] sp : ffff80001f317740 [ 83.914704][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001a18fe0c [ 83.915987][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000001 [ 83.917346][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 83.918742][ T4754] x20: ffff0000d0c7f060 x19: 0000000000000000 x18: 0000000000000000 [ 83.920150][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 83.921500][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 83.922837][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 83.924101][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 83.925443][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 83.926811][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 83.928192][ T4754] Call trace: [ 83.928741][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 83.929903][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 83.930883][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 83.931922][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 83.932898][ T4754] close_ctree+0x618/0x834 [ 83.933620][ T4754] btrfs_put_super+0x40/0x50 [ 83.934504][ T4754] generic_shutdown_super+0x130/0x2f0 [ 83.935504][ T4754] kill_anon_super+0x4c/0x80 [ 83.936314][ T4754] btrfs_kill_super+0x40/0x58 [ 83.937082][ T4754] deactivate_locked_super+0xb8/0x134 [ 83.938015][ T4754] deactivate_super+0xf0/0x110 [ 83.938819][ T4754] cleanup_mnt+0x3b8/0x46c [ 83.939563][ T4754] __cleanup_mnt+0x20/0x30 [ 83.940278][ T4754] task_work_run+0x12c/0x1d8 [ 83.941060][ T4754] do_notify_resume+0x2450/0x309c [ 83.941923][ T4754] el0_svc+0xf0/0x1d0 [ 83.942640][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 83.943542][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 83.944304][ T4754] irq event stamp: 711978 [ 83.945063][ T4754] hardirqs last enabled at (711977): [] kasan_quarantine_put+0xc4/0x200 [ 83.946804][ T4754] hardirqs last disabled at (711978): [] el1_dbg+0x24/0x80 [ 83.948369][ T4754] softirqs last enabled at (709160): [] handle_softirqs+0xa40/0xbe4 [ 83.950015][ T4754] softirqs last disabled at (709063): [] __irq_exit_rcu+0x240/0x43c [ 83.951638][ T4754] ---[ end trace 7717f1496c0e0697 ]--- [ 84.101815][ T5525] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.41 (5525) [ 84.151261][ T5525] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 84.159436][ T5525] BTRFS warning (device loop0): couldn't read tree root [ 84.160927][ T5525] BTRFS warning (device loop0): couldn't read tree root [ 84.162508][ T5525] BTRFS warning (device loop0): couldn't read tree root [ 84.172392][ T5525] FAULT_INJECTION: forcing a failure. [ 84.172392][ T5525] name failslab, interval 1, probability 0, space 0, times 0 [ 84.174401][ T5525] CPU: 0 PID: 5525 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 84.175902][ T5525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.177650][ T5525] Call trace: [ 84.178200][ T5525] dump_backtrace+0x0/0x458 [ 84.179005][ T5525] show_stack+0x2c/0x3c [ 84.179724][ T5525] __dump_stack+0x30/0x40 [ 84.180461][ T5525] dump_stack_lvl+0xf4/0x15c [ 84.181240][ T5525] dump_stack+0x1c/0x5c [ 84.181970][ T5525] should_fail+0x3bc/0x514 [ 84.182811][ T5525] __should_failslab+0xbc/0x10c [ 84.183719][ T5525] should_failslab+0x10/0x28 [ 84.184503][ T5525] slab_pre_alloc_hook+0x64/0xe8 [ 84.185402][ T5525] kmem_cache_alloc+0x94/0x3d4 [ 84.186166][ T5525] btrfs_alloc_tree_block+0xa3c/0x1130 [ 84.187120][ T5525] insert_new_root+0x244/0x8a4 [ 84.187909][ T5525] split_leaf+0xa44/0x1090 [ 84.188612][ T5525] btrfs_search_slot+0x1c1c/0x1f44 [ 84.189459][ T5525] btrfs_insert_empty_items+0x1d8/0x2a0 [ 84.190366][ T5525] insert_with_overflow+0xbc/0x248 [ 84.191240][ T5525] btrfs_insert_xattr_item+0x178/0x30c [ 84.192205][ T5525] btrfs_setxattr+0x3d8/0x8bc [ 84.192995][ T5525] btrfs_setxattr_trans+0xfc/0x354 [ 84.193864][ T5525] btrfs_xattr_handler_set+0xb0/0xd8 [ 84.194764][ T5525] __vfs_setxattr+0x384/0x3a0 [ 84.195474][ T5525] __vfs_setxattr_noperm+0x120/0x564 [ 84.196420][ T5525] __vfs_setxattr_locked+0x1ec/0x218 [ 84.197289][ T5525] vfs_setxattr+0x158/0x2ac [ 84.198009][ T5525] setxattr+0x278/0x2f8 [ 84.198648][ T5525] path_setxattr+0x130/0x260 [ 84.199466][ T5525] __arm64_sys_setxattr+0xbc/0xd8 [ 84.200323][ T5525] invoke_syscall+0x98/0x2b0 [ 84.201114][ T5525] el0_svc_common+0x138/0x258 [ 84.201981][ T5525] do_el0_svc+0x58/0x13c [ 84.202730][ T5525] el0_svc+0x78/0x1d0 [ 84.203388][ T5525] el0t_64_sync_handler+0xcc/0xe4 [ 84.204246][ T5525] el0t_64_sync+0x1a0/0x1a4 [ 84.255400][ T4754] ------------[ cut here ]------------ [ 84.256359][ T4754] WARNING: CPU: 0 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 84.258281][ T4754] Modules linked in: [ 84.258993][ T4754] CPU: 0 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 84.260552][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.262313][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 84.263662][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 84.264866][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 84.266137][ T4754] sp : ffff80001f317740 [ 84.266855][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001b8c8f0c [ 84.268252][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000001 [ 84.269594][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 84.270935][ T4754] x20: ffff0000dc647860 x19: 0000000000000000 x18: 0000000000000000 [ 84.272324][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 84.273729][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 84.275169][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 84.276483][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 84.277844][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 84.279240][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 84.280669][ T4754] Call trace: [ 84.281240][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 84.282435][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 84.283350][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 84.284399][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 84.285356][ T4754] close_ctree+0x618/0x834 [ 84.286119][ T4754] btrfs_put_super+0x40/0x50 [ 84.286819][ T4754] generic_shutdown_super+0x130/0x2f0 [ 84.287749][ T4754] kill_anon_super+0x4c/0x80 [ 84.288537][ T4754] btrfs_kill_super+0x40/0x58 [ 84.289414][ T4754] deactivate_locked_super+0xb8/0x134 [ 84.290282][ T4754] deactivate_super+0xf0/0x110 [ 84.291100][ T4754] cleanup_mnt+0x3b8/0x46c [ 84.291875][ T4754] __cleanup_mnt+0x20/0x30 [ 84.292603][ T4754] task_work_run+0x12c/0x1d8 [ 84.293360][ T4754] do_notify_resume+0x2450/0x309c [ 84.294258][ T4754] el0_svc+0xf0/0x1d0 [ 84.294919][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 84.295810][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 84.296535][ T4754] irq event stamp: 719394 [ 84.297289][ T4754] hardirqs last enabled at (719393): [] kasan_quarantine_put+0xc4/0x200 [ 84.299009][ T4754] hardirqs last disabled at (719394): [] el1_dbg+0x24/0x80 [ 84.300558][ T4754] softirqs last enabled at (716818): [] local_bh_enable+0x10/0x34 [ 84.302185][ T4754] softirqs last disabled at (716816): [] local_bh_disable+0x10/0x34 [ 84.303853][ T4754] ---[ end trace 7717f1496c0e0698 ]--- [ 84.313255][ T4936] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4936) [ 84.428174][ T5548] BTRFS warning (device loop0): 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead [ 84.435059][ T5548] BTRFS warning (device loop0): couldn't read tree root [ 84.436331][ T5548] BTRFS warning (device loop0): couldn't read tree root [ 84.437870][ T5548] BTRFS warning (device loop0): couldn't read tree root [ 84.446346][ T5548] FAULT_INJECTION: forcing a failure. [ 84.446346][ T5548] name failslab, interval 1, probability 0, space 0, times 0 [ 84.448593][ T5548] CPU: 1 PID: 5548 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 84.450018][ T5548] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.451847][ T5548] Call trace: [ 84.452415][ T5548] dump_backtrace+0x0/0x458 [ 84.453252][ T5548] show_stack+0x2c/0x3c [ 84.453956][ T5548] __dump_stack+0x30/0x40 [ 84.454749][ T5548] dump_stack_lvl+0xf4/0x15c [ 84.455530][ T5548] dump_stack+0x1c/0x5c [ 84.456268][ T5548] should_fail+0x3bc/0x514 [ 84.457044][ T5548] __should_failslab+0xbc/0x10c [ 84.457931][ T5548] should_failslab+0x10/0x28 [ 84.458740][ T5548] slab_pre_alloc_hook+0x64/0xe8 [ 84.459617][ T5548] kmem_cache_alloc+0x94/0x3d4 [ 84.460393][ T5548] btrfs_alloc_tree_block+0xa3c/0x1130 [ 84.461283][ T5548] insert_new_root+0x244/0x8a4 [ 84.462144][ T5548] split_leaf+0xa44/0x1090 [ 84.462879][ T5548] btrfs_search_slot+0x1c1c/0x1f44 [ 84.463781][ T5548] btrfs_insert_empty_items+0x1d8/0x2a0 [ 84.464745][ T5548] insert_with_overflow+0xbc/0x248 [ 84.465630][ T5548] btrfs_insert_xattr_item+0x178/0x30c [ 84.466615][ T5548] btrfs_setxattr+0x3d8/0x8bc [ 84.467395][ T5548] btrfs_setxattr_trans+0xfc/0x354 [ 84.468346][ T5548] btrfs_xattr_handler_set+0xb0/0xd8 [ 84.469285][ T5548] __vfs_setxattr+0x384/0x3a0 [ 84.470103][ T5548] __vfs_setxattr_noperm+0x120/0x564 [ 84.471012][ T5548] __vfs_setxattr_locked+0x1ec/0x218 [ 84.471869][ T5548] vfs_setxattr+0x158/0x2ac [ 84.472674][ T5548] setxattr+0x278/0x2f8 [ 84.473357][ T5548] path_setxattr+0x130/0x260 [ 84.474088][ T5548] __arm64_sys_setxattr+0xbc/0xd8 [ 84.474871][ T5548] invoke_syscall+0x98/0x2b0 [ 84.475641][ T5548] el0_svc_common+0x138/0x258 [ 84.476432][ T5548] do_el0_svc+0x58/0x13c [ 84.477195][ T5548] el0_svc+0x78/0x1d0 [ 84.477906][ T5548] el0t_64_sync_handler+0xcc/0xe4 [ 84.478714][ T5548] el0t_64_sync+0x1a0/0x1a4 [ 84.517167][ T4754] ------------[ cut here ]------------ [ 84.518066][ T4754] WARNING: CPU: 0 PID: 4754 at fs/btrfs/space-info.h:110 btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 84.519983][ T4754] Modules linked in: [ 84.520666][ T4754] CPU: 0 PID: 4754 Comm: syz-executor Tainted: G W syzkaller #0 [ 84.522306][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.524331][ T4754] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 84.525687][ T4754] pc : btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 84.526981][ T4754] lr : btrfs_space_info_update_bytes_may_use+0x2b4/0x664 [ 84.528261][ T4754] sp : ffff80001f317740 [ 84.528943][ T4754] x29: ffff80001f317750 x28: dfff800000000000 x27: 1fffe0001af7980c [ 84.530258][ T4754] x26: dfff800000000000 x25: ffff8000142ad110 x24: 0000000000000001 [ 84.531572][ T4754] x23: 0000000000000005 x22: 00000000000cf000 x21: 00000000000d0000 [ 84.532970][ T4754] x20: ffff0000d7bcc060 x19: 0000000000000000 x18: 0000000000000000 [ 84.534268][ T4754] x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000 [ 84.535604][ T4754] x14: ffff700003e62edc x13: 1ffff00003e62edc x12: 0000000000ff0100 [ 84.536986][ T4754] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000a05b1dc [ 84.538331][ T4754] x8 : ffff0000c23db680 x7 : ffff80000a05a4c0 x6 : 0000000000000000 [ 84.539695][ T4754] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d8840 [ 84.541069][ T4754] x2 : fffffffffff30000 x1 : 00000000000d0000 x0 : 00000000000cf000 [ 84.542401][ T4754] Call trace: [ 84.542961][ T4754] btrfs_space_info_update_bytes_may_use+0x2b8/0x664 [ 84.544175][ T4754] btrfs_block_rsv_release+0x3f8/0x4d4 [ 84.545113][ T4754] btrfs_release_global_block_rsv+0x38/0x22c [ 84.546107][ T4754] btrfs_free_block_groups+0x7ac/0xb3c [ 84.547051][ T4754] close_ctree+0x618/0x834 [ 84.547850][ T4754] btrfs_put_super+0x40/0x50 [ 84.548593][ T4754] generic_shutdown_super+0x130/0x2f0 [ 84.549550][ T4754] kill_anon_super+0x4c/0x80 [ 84.550344][ T4754] btrfs_kill_super+0x40/0x58 [ 84.551091][ T4754] deactivate_locked_super+0xb8/0x134 [ 84.552076][ T4754] deactivate_super+0xf0/0x110 [ 84.552881][ T4754] cleanup_mnt+0x3b8/0x46c [ 84.553639][ T4754] __cleanup_mnt+0x20/0x30 [ 84.554337][ T4754] task_work_run+0x12c/0x1d8 [ 84.555148][ T4754] do_notify_resume+0x2450/0x309c [ 84.556026][ T4754] el0_svc+0xf0/0x1d0 [ 84.556679][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 84.557597][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 84.558421][ T4754] irq event stamp: 726752 [ 84.559155][ T4754] hardirqs last enabled at (726751): [] kasan_quarantine_put+0xc4/0x200 [ 84.560853][ T4754] hardirqs last disabled at (726752): [] el1_dbg+0x24/0x80 [ 84.562309][ T4754] softirqs last enabled at (725664): [] handle_softirqs+0xa40/0xbe4 [ 84.564084][ T4754] softirqs last disabled at (725403): [] __irq_exit_rcu+0x240/0x43c [ 84.565722][ T4754] ---[ end trace 7717f1496c0e0699 ]---