Warning: Permanently added '10.128.1.178' (ED25519) to the list of known hosts. 1970/01/01 00:01:03 ignoring optional flag "type"="gce" 1970/01/01 00:01:03 parsed 1 programs [ 64.997295][ T4404] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 65.974997][ T4498] chnl_net:caif_netlink_parms(): no params data found [ 65.995658][ T4498] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.996904][ T4498] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.998363][ T4498] device bridge_slave_0 entered promiscuous mode [ 66.000314][ T4498] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.001377][ T4498] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.002903][ T4498] device bridge_slave_1 entered promiscuous mode [ 66.012182][ T4498] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.014817][ T4498] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.023540][ T4498] team0: Port device team_slave_0 added [ 66.027781][ T4498] team0: Port device team_slave_1 added [ 66.036687][ T4498] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.037787][ T4498] 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. [ 66.041847][ T4498] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.044679][ T4498] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.045798][ T4498] 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. [ 66.049892][ T4498] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.085595][ T4498] device hsr_slave_0 entered promiscuous mode [ 66.134424][ T4498] device hsr_slave_1 entered promiscuous mode [ 66.782292][ T4498] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.806359][ T4498] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.857812][ T4498] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.906133][ T4498] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.988636][ T4498] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.989787][ T4498] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.991036][ T4498] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.992096][ T4498] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.994756][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.996160][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.019680][ T4498] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.023525][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.025454][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.037155][ T4498] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.039573][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.041189][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.042558][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.043614][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.065539][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.067114][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.068461][ T342] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.069476][ T342] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.070733][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.072299][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.073824][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.079283][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.087026][ T4498] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 67.088637][ T4498] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.091295][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.092672][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.095717][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.097597][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.099089][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.100751][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.102190][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.106932][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.206620][ T4498] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.208347][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.209610][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.217082][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 67.218598][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.234444][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 67.236134][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.238239][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.239633][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.242495][ T4498] device veth0_vlan entered promiscuous mode [ 67.251417][ T4498] device veth1_vlan entered promiscuous mode [ 67.262087][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.263490][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.266859][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.268357][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.272326][ T4498] device veth0_macvtap entered promiscuous mode [ 67.275793][ T4498] device veth1_macvtap entered promiscuous mode [ 67.281489][ T4498] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.282592][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.283971][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.286497][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.288074][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.291768][ T4498] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.293876][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.295582][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.299269][ T4498] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.300597][ T4498] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.301904][ T4498] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.303268][ T4498] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.539658][ T148] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.540861][ T148] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.542568][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.553266][ T342] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.554916][ T342] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.557196][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 67.919817][ T1605] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.615609][ T2065] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.616486][ T1540] cfg80211: failed to load regulatory.db [ 69.616701][ T2065] ieee802154 phy1 wpan1: encryption failed: -22 [ 70.627387][ T1605] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.167953][ T1605] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.219624][ T1605] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:13 executed programs: 0 [ 73.610585][ T4927] chnl_net:caif_netlink_parms(): no params data found [ 73.633516][ T4927] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.635625][ T4927] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.637166][ T4927] device bridge_slave_0 entered promiscuous mode [ 73.639681][ T4927] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.641107][ T4927] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.642747][ T4927] device bridge_slave_1 entered promiscuous mode [ 73.652891][ T4927] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.655668][ T4927] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.665219][ T4927] team0: Port device team_slave_0 added [ 73.667725][ T4927] team0: Port device team_slave_1 added [ 73.675459][ T4927] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.676588][ T4927] 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. [ 73.680487][ T4927] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.682872][ T4927] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.683871][ T4927] 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. [ 73.687925][ T4927] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.745940][ T4927] device hsr_slave_0 entered promiscuous mode [ 73.794528][ T4927] device hsr_slave_1 entered promiscuous mode [ 73.844172][ T4927] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 73.845261][ T4927] Cannot create hsr debugfs directory [ 74.352930][ T4927] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.405561][ T4927] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.451850][ T4927] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.485609][ T4927] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.559756][ T4927] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.565765][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.567177][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.570693][ T4927] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.573311][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.577868][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.579319][ T342] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.580654][ T342] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.582039][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.588572][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.590114][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.591556][ T342] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.592679][ T342] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.595809][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.606381][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.608050][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.609705][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.611296][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 74.612891][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.616418][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 74.617969][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.619385][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 74.620892][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.623708][ T4927] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.628589][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.685600][ T4927] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.686864][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.688175][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.695165][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.696695][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.703623][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.706111][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.707605][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.708998][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.711745][ T4927] device veth0_vlan entered promiscuous mode [ 74.717352][ T4927] device veth1_vlan entered promiscuous mode [ 74.725531][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.726899][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.728232][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.729689][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.731491][ T4927] device veth0_macvtap entered promiscuous mode [ 74.735257][ T4927] device veth1_macvtap entered promiscuous mode [ 74.741253][ T4927] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 74.742909][ T4927] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.745456][ T4927] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.746574][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.748180][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.749572][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.751091][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.753676][ T4927] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 74.755439][ T4927] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.757489][ T4927] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.759128][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.760742][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.763001][ T4927] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.765130][ T4927] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.766609][ T4927] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.767814][ T4927] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.800965][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.802275][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.803871][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.816049][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.817253][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.818977][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 74.930956][ T5044] loop0: detected capacity change from 0 to 32768 [ 74.976251][ T5044] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.15 (5044) [ 74.983045][ T5044] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 74.986005][ T5044] BTRFS info (device loop0): setting nodatacow, compression disabled [ 74.987403][ T5044] BTRFS info (device loop0): setting datacow [ 74.988376][ T5044] BTRFS info (device loop0): doing ref verification [ 74.989536][ T5044] BTRFS info (device loop0): force clearing of disk cache [ 74.990602][ T5044] BTRFS info (device loop0): turning off barriers [ 74.991551][ T5044] BTRFS info (device loop0): use zlib compression, level 3 [ 74.992576][ T5044] BTRFS info (device loop0): using free space tree [ 74.993575][ T5044] BTRFS info (device loop0): has skinny extents [ 75.011052][ T5044] BTRFS info (device loop0): clearing free space tree [ 75.012303][ T5044] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 75.014074][ T5044] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 75.022758][ T5044] BTRFS info (device loop0): creating free space tree [ 75.026549][ T5044] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 75.028094][ T5044] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 75.036869][ T5044] FAULT_INJECTION: forcing a failure. [ 75.036869][ T5044] name failslab, interval 1, probability 0, space 0, times 1 [ 75.038919][ T5044] CPU: 1 PID: 5044 Comm: syz.0.15 Not tainted syzkaller #0 [ 75.039949][ T5044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.041516][ T5044] Call trace: [ 75.042012][ T5044] dump_backtrace+0x0/0x43c [ 75.042735][ T5044] show_stack+0x2c/0x3c [ 75.043350][ T5044] __dump_stack+0x30/0x40 [ 75.043989][ T5044] dump_stack_lvl+0xf8/0x160 [ 75.044665][ T5044] dump_stack+0x1c/0x5c [ 75.045283][ T5044] should_fail+0x3c0/0x51c [ 75.045907][ T5044] __should_failslab+0xbc/0x10c [ 75.046655][ T5044] should_failslab+0x10/0x28 [ 75.047391][ T5044] slab_pre_alloc_hook+0x64/0xec [ 75.048183][ T5044] kmem_cache_alloc+0x94/0x3e4 [ 75.048893][ T5044] btrfs_alloc_path+0x5c/0x68 [ 75.049597][ T5044] btrfs_insert_dir_item+0x16c/0x3b8 [ 75.050414][ T5044] btrfs_add_link+0x294/0xa68 [ 75.051072][ T5044] btrfs_create+0x45c/0x508 [ 75.051795][ T5044] path_openat+0x1144/0x26e4 [ 75.052449][ T5044] do_filp_open+0x164/0x330 [ 75.053149][ T5044] do_sys_openat2+0x128/0x3d8 [ 75.053781][ T5044] __arm64_sys_openat+0x120/0x154 [ 75.054528][ T5044] invoke_syscall+0x98/0x2b8 [ 75.055189][ T5044] el0_svc_common+0x138/0x258 [ 75.055929][ T5044] do_el0_svc+0x58/0x14c [ 75.056624][ T5044] el0_svc+0x78/0x1e0 [ 75.057246][ T5044] el0t_64_sync_handler+0xcc/0xe4 [ 75.058029][ T5044] el0t_64_sync+0x1a0/0x1a4 [ 75.060486][ T5044] ------------[ cut here ]------------ [ 75.061436][ T5044] WARNING: CPU: 0 PID: 5044 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 75.062684][ T5044] Modules linked in: [ 75.063251][ T5044] CPU: 0 PID: 5044 Comm: syz.0.15 Not tainted syzkaller #0 [ 75.064322][ T5044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.065687][ T5044] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.066787][ T5044] pc : btrfs_add_link+0x6e8/0xa68 [ 75.067490][ T5044] lr : btrfs_add_link+0x6e8/0xa68 [ 75.068193][ T5044] sp : ffff80001fed7580 [ 75.068807][ T5044] x29: ffff80001fed7680 x28: ffff0000df26d210 x27: 0000000000000108 [ 75.069961][ T5044] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 75.071154][ T5044] x23: 0000000000000014 x22: 1fffe0001be4da4d x21: ffff700003fdaeb8 [ 75.072327][ T5044] x20: 00000000fffffff4 x19: ffff0000df26d268 x18: 0000000000000001 [ 75.073434][ T5044] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 75.074621][ T5044] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 75.075821][ T5044] x11: 0000000000000000 x10: 0000000000000000 x9 : 8bda5feb2754ed00 [ 75.077062][ T5044] x8 : 8bda5feb2754ed00 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.078169][ T5044] x5 : ffff80001fed6e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 75.079322][ T5044] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.080473][ T5044] Call trace: [ 75.080931][ T5044] btrfs_add_link+0x6e8/0xa68 [ 75.081639][ T5044] btrfs_create+0x45c/0x508 [ 75.082269][ T5044] path_openat+0x1144/0x26e4 [ 75.082963][ T5044] do_filp_open+0x164/0x330 [ 75.083643][ T5044] do_sys_openat2+0x128/0x3d8 [ 75.084290][ T5044] __arm64_sys_openat+0x120/0x154 [ 75.085037][ T5044] invoke_syscall+0x98/0x2b8 [ 75.085704][ T5044] el0_svc_common+0x138/0x258 [ 75.086364][ T5044] do_el0_svc+0x58/0x14c [ 75.086924][ T5044] el0_svc+0x78/0x1e0 [ 75.087512][ T5044] el0t_64_sync_handler+0xcc/0xe4 [ 75.088199][ T5044] el0t_64_sync+0x1a0/0x1a4 [ 75.088805][ T5044] irq event stamp: 83672 [ 75.089387][ T5044] hardirqs last enabled at (83671): [] __up_console_sem+0xb4/0x100 [ 75.090750][ T5044] hardirqs last disabled at (83672): [] el1_dbg+0x24/0x80 [ 75.091950][ T5044] softirqs last enabled at (83652): [] handle_softirqs+0xa4c/0xbf0 [ 75.093367][ T5044] softirqs last disabled at (83575): [] __irq_exit_rcu+0x240/0x440 [ 75.094792][ T5044] ---[ end trace a7888953c9d801ce ]--- [ 75.096697][ T5044] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 75.098030][ T5044] BTRFS info (device loop0): forced readonly [ 75.295421][ T5068] loop0: detected capacity change from 0 to 32768 [ 75.386980][ T5068] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.16 (5068) [ 75.439142][ T5068] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 75.440536][ T5068] BTRFS info (device loop0): setting nodatacow, compression disabled [ 75.441862][ T5068] BTRFS info (device loop0): setting datacow [ 75.443042][ T5068] BTRFS info (device loop0): doing ref verification [ 75.444007][ T5068] BTRFS info (device loop0): force clearing of disk cache [ 75.445803][ T5068] BTRFS info (device loop0): turning off barriers [ 75.446863][ T5068] BTRFS info (device loop0): use zlib compression, level 3 [ 75.447984][ T5068] BTRFS info (device loop0): using free space tree [ 75.448989][ T5068] BTRFS info (device loop0): has skinny extents [ 75.458075][ T5068] BTRFS info (device loop0): clearing free space tree [ 75.459106][ T5068] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 75.460633][ T5068] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 75.466095][ T5068] BTRFS info (device loop0): creating free space tree [ 75.467587][ T5068] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 75.469032][ T5068] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 75.474540][ T5068] FAULT_INJECTION: forcing a failure. [ 75.474540][ T5068] name failslab, interval 1, probability 0, space 0, times 0 [ 75.476562][ T5068] CPU: 0 PID: 5068 Comm: syz.0.16 Tainted: G W syzkaller #0 [ 75.477852][ T5068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.479301][ T5068] Call trace: [ 75.479744][ T5068] dump_backtrace+0x0/0x43c [ 75.480395][ T5068] show_stack+0x2c/0x3c [ 75.480953][ T5068] __dump_stack+0x30/0x40 [ 75.481566][ T5068] dump_stack_lvl+0xf8/0x160 [ 75.482254][ T5068] dump_stack+0x1c/0x5c [ 75.482834][ T5068] should_fail+0x3c0/0x51c [ 75.483461][ T5068] __should_failslab+0xbc/0x10c [ 75.484183][ T5068] should_failslab+0x10/0x28 [ 75.484928][ T5068] slab_pre_alloc_hook+0x64/0xec [ 75.485627][ T5068] kmem_cache_alloc+0x94/0x3e4 [ 75.486329][ T5068] btrfs_alloc_path+0x5c/0x68 [ 75.486992][ T5068] btrfs_insert_dir_item+0x16c/0x3b8 [ 75.487784][ T5068] btrfs_add_link+0x294/0xa68 [ 75.488476][ T5068] btrfs_create+0x45c/0x508 [ 75.489157][ T5068] path_openat+0x1144/0x26e4 [ 75.489808][ T5068] do_filp_open+0x164/0x330 [ 75.490433][ T5068] do_sys_openat2+0x128/0x3d8 [ 75.491118][ T5068] __arm64_sys_openat+0x120/0x154 [ 75.491811][ T5068] invoke_syscall+0x98/0x2b8 [ 75.492495][ T5068] el0_svc_common+0x138/0x258 [ 75.493190][ T5068] do_el0_svc+0x58/0x14c [ 75.493830][ T5068] el0_svc+0x78/0x1e0 [ 75.494415][ T5068] el0t_64_sync_handler+0xcc/0xe4 [ 75.495148][ T5068] el0t_64_sync+0x1a0/0x1a4 [ 75.496092][ T5068] ------------[ cut here ]------------ [ 75.496939][ T5068] WARNING: CPU: 0 PID: 5068 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 75.498154][ T5068] Modules linked in: [ 75.498672][ T5068] CPU: 0 PID: 5068 Comm: syz.0.16 Tainted: G W syzkaller #0 [ 75.499849][ T5068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.501231][ T5068] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.502316][ T5068] pc : btrfs_add_link+0x6e8/0xa68 [ 75.502989][ T5068] lr : btrfs_add_link+0x6e8/0xa68 [ 75.503689][ T5068] sp : ffff80001fea7580 [ 75.504264][ T5068] x29: ffff80001fea7680 x28: ffff0000df2ba210 x27: 0000000000000108 [ 75.505394][ T5068] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 75.506620][ T5068] x23: 0000000000000014 x22: 1fffe0001be5744d x21: ffff700003fd4eb8 [ 75.507722][ T5068] x20: 00000000fffffff4 x19: ffff0000df2ba268 x18: 0000000000000001 [ 75.508845][ T5068] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 75.510039][ T5068] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 75.511243][ T5068] x11: 0000000000000000 x10: 0000000000000000 x9 : 0b79f929d7a42500 [ 75.512353][ T5068] x8 : 0b79f929d7a42500 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.513472][ T5068] x5 : ffff80001fea6e78 x4 : ffff8000141ff5a0 x3 : ffff800008302274 [ 75.514633][ T5068] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.515790][ T5068] Call trace: [ 75.516247][ T5068] btrfs_add_link+0x6e8/0xa68 [ 75.516943][ T5068] btrfs_create+0x45c/0x508 [ 75.517587][ T5068] path_openat+0x1144/0x26e4 [ 75.518235][ T5068] do_filp_open+0x164/0x330 [ 75.518829][ T5068] do_sys_openat2+0x128/0x3d8 [ 75.519530][ T5068] __arm64_sys_openat+0x120/0x154 [ 75.520228][ T5068] invoke_syscall+0x98/0x2b8 [ 75.520872][ T5068] el0_svc_common+0x138/0x258 [ 75.521543][ T5068] do_el0_svc+0x58/0x14c [ 75.522198][ T5068] el0_svc+0x78/0x1e0 [ 75.522798][ T5068] el0t_64_sync_handler+0xcc/0xe4 [ 75.523524][ T5068] el0t_64_sync+0x1a0/0x1a4 [ 75.524215][ T5068] irq event stamp: 82542 [ 75.524798][ T5068] hardirqs last enabled at (82541): [] __up_console_sem+0xb4/0x100 [ 75.526214][ T5068] hardirqs last disabled at (82542): [] el1_dbg+0x24/0x80 [ 75.527456][ T5068] softirqs last enabled at (82522): [] handle_softirqs+0xa4c/0xbf0 [ 75.528886][ T5068] softirqs last disabled at (82443): [] __irq_exit_rcu+0x240/0x440 [ 75.530132][ T5068] ---[ end trace a7888953c9d801cf ]--- [ 75.531350][ T5068] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 75.532792][ T5068] BTRFS info (device loop0): forced readonly [ 75.615078][ T5065] Bluetooth: hci1: command 0x0409 tx timeout [ 75.704078][ T1605] device hsr_slave_0 left promiscuous mode [ 75.732055][ T5090] loop0: detected capacity change from 0 to 32768 [ 75.754966][ T1605] device hsr_slave_1 left promiscuous mode [ 75.757017][ T5090] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.17 (5090) [ 75.797957][ T5090] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 75.799385][ T5090] BTRFS info (device loop0): setting nodatacow, compression disabled [ 75.800645][ T5090] BTRFS info (device loop0): setting datacow [ 75.801522][ T5090] BTRFS info (device loop0): doing ref verification [ 75.802569][ T5090] BTRFS info (device loop0): force clearing of disk cache [ 75.803650][ T5090] BTRFS info (device loop0): turning off barriers [ 75.805266][ T5090] BTRFS info (device loop0): use zlib compression, level 3 [ 75.806221][ T5090] BTRFS info (device loop0): using free space tree [ 75.807178][ T5090] BTRFS info (device loop0): has skinny extents [ 75.816201][ T5090] BTRFS info (device loop0): clearing free space tree [ 75.817274][ T5090] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 75.818754][ T5090] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 75.822400][ T5090] BTRFS info (device loop0): creating free space tree [ 75.823748][ T5090] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 75.825953][ T5090] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 75.830922][ T5090] FAULT_INJECTION: forcing a failure. [ 75.830922][ T5090] name failslab, interval 1, probability 0, space 0, times 0 [ 75.832813][ T5090] CPU: 1 PID: 5090 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 75.834096][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.834415][ T1605] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 75.835681][ T5090] Call trace: [ 75.836895][ T1605] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 75.837328][ T5090] dump_backtrace+0x0/0x43c [ 75.839047][ T5090] show_stack+0x2c/0x3c [ 75.839669][ T5090] __dump_stack+0x30/0x40 [ 75.840328][ T5090] dump_stack_lvl+0xf8/0x160 [ 75.841006][ T5090] dump_stack+0x1c/0x5c [ 75.841641][ T5090] should_fail+0x3c0/0x51c [ 75.842336][ T5090] __should_failslab+0xbc/0x10c [ 75.843102][ T5090] should_failslab+0x10/0x28 [ 75.843922][ T5090] slab_pre_alloc_hook+0x64/0xec [ 75.844678][ T5090] kmem_cache_alloc+0x94/0x3e4 [ 75.845443][ T5090] btrfs_alloc_path+0x5c/0x68 [ 75.846102][ T5090] btrfs_insert_dir_item+0x16c/0x3b8 [ 75.846853][ T5090] btrfs_add_link+0x294/0xa68 [ 75.847529][ T5090] btrfs_create+0x45c/0x508 [ 75.848130][ T5090] path_openat+0x1144/0x26e4 [ 75.848790][ T5090] do_filp_open+0x164/0x330 [ 75.849490][ T5090] do_sys_openat2+0x128/0x3d8 [ 75.850195][ T5090] __arm64_sys_openat+0x120/0x154 [ 75.850927][ T5090] invoke_syscall+0x98/0x2b8 [ 75.851649][ T5090] el0_svc_common+0x138/0x258 [ 75.852333][ T5090] do_el0_svc+0x58/0x14c [ 75.852975][ T5090] el0_svc+0x78/0x1e0 [ 75.853511][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 75.854246][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 75.856095][ T1605] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 75.857215][ T1605] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 75.857414][ T5090] ------------[ cut here ]------------ [ 75.859522][ T5090] WARNING: CPU: 1 PID: 5090 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 75.859766][ T1605] device bridge_slave_1 left promiscuous mode [ 75.860734][ T5090] Modules linked in: [ 75.861788][ T1605] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.862227][ T5090] CPU: 1 PID: 5090 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 75.864571][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.866065][ T5090] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.867226][ T5090] pc : btrfs_add_link+0x6e8/0xa68 [ 75.868040][ T5090] lr : btrfs_add_link+0x6e8/0xa68 [ 75.868782][ T5090] sp : ffff800020057580 [ 75.869338][ T5090] x29: ffff800020057680 x28: ffff0000df26d4d0 x27: 0000000000000108 [ 75.870512][ T5090] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 75.871671][ T5090] x23: 0000000000000014 x22: 1fffe0001be4daa5 x21: ffff70000400aeb8 [ 75.872824][ T5090] x20: 00000000fffffff4 x19: ffff0000df26d528 x18: 0000000000000001 [ 75.874043][ T5090] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 75.875288][ T5090] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 75.876450][ T5090] x11: 0000000000000000 x10: 0000000000000000 x9 : 8c52360e4031a600 [ 75.877643][ T5090] x8 : 8c52360e4031a600 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.878818][ T5090] x5 : ffff800020056e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 75.879959][ T5090] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.881093][ T5090] Call trace: [ 75.881571][ T5090] btrfs_add_link+0x6e8/0xa68 [ 75.882249][ T5090] btrfs_create+0x45c/0x508 [ 75.882897][ T5090] path_openat+0x1144/0x26e4 [ 75.883514][ T5090] do_filp_open+0x164/0x330 [ 75.884129][ T5090] do_sys_openat2+0x128/0x3d8 [ 75.884809][ T5090] __arm64_sys_openat+0x120/0x154 [ 75.885548][ T5090] invoke_syscall+0x98/0x2b8 [ 75.886210][ T5090] el0_svc_common+0x138/0x258 [ 75.886908][ T5090] do_el0_svc+0x58/0x14c [ 75.887527][ T5090] el0_svc+0x78/0x1e0 [ 75.888095][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 75.888816][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 75.889449][ T5090] irq event stamp: 81220 [ 75.890011][ T5090] hardirqs last enabled at (81219): [] __up_console_sem+0xb4/0x100 [ 75.891418][ T5090] hardirqs last disabled at (81220): [] el1_dbg+0x24/0x80 [ 75.892715][ T5090] softirqs last enabled at (81194): [] handle_softirqs+0xa4c/0xbf0 [ 75.894081][ T5090] softirqs last disabled at (81141): [] __irq_exit_rcu+0x240/0x440 [ 75.895475][ T5090] ---[ end trace a7888953c9d801d0 ]--- [ 75.897021][ T5090] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 75.898389][ T5090] BTRFS info (device loop0): forced readonly [ 75.917628][ T1605] device bridge_slave_0 left promiscuous mode [ 75.918620][ T1605] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.045655][ T5112] loop0: detected capacity change from 0 to 32768 [ 76.065765][ T1605] device veth1_macvtap left promiscuous mode [ 76.066689][ T1605] device veth0_macvtap left promiscuous mode [ 76.067679][ T1605] device veth1_vlan left promiscuous mode [ 76.068550][ T1605] device veth0_vlan left promiscuous mode [ 76.097357][ T5112] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.18 (5112) [ 76.105056][ T5112] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 76.106498][ T5112] BTRFS info (device loop0): setting nodatacow, compression disabled [ 76.107722][ T5112] BTRFS info (device loop0): setting datacow [ 76.108548][ T5112] BTRFS info (device loop0): doing ref verification [ 76.109574][ T5112] BTRFS info (device loop0): force clearing of disk cache [ 76.110595][ T5112] BTRFS info (device loop0): turning off barriers [ 76.111550][ T5112] BTRFS info (device loop0): use zlib compression, level 3 [ 76.112612][ T5112] BTRFS info (device loop0): using free space tree [ 76.113669][ T5112] BTRFS info (device loop0): has skinny extents [ 76.184713][ T5112] BTRFS info (device loop0): clearing free space tree [ 76.186090][ T5112] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 76.187573][ T5112] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 76.191520][ T5112] BTRFS info (device loop0): creating free space tree [ 76.192980][ T5112] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 76.195648][ T5112] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 76.201154][ T5112] FAULT_INJECTION: forcing a failure. [ 76.201154][ T5112] name failslab, interval 1, probability 0, space 0, times 0 [ 76.203068][ T5112] CPU: 1 PID: 5112 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 76.204368][ T5112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.205884][ T5112] Call trace: [ 76.206389][ T5112] dump_backtrace+0x0/0x43c [ 76.207077][ T5112] show_stack+0x2c/0x3c [ 76.207755][ T5112] __dump_stack+0x30/0x40 [ 76.208447][ T5112] dump_stack_lvl+0xf8/0x160 [ 76.209135][ T5112] dump_stack+0x1c/0x5c [ 76.209743][ T5112] should_fail+0x3c0/0x51c [ 76.210470][ T5112] __should_failslab+0xbc/0x10c [ 76.211180][ T5112] should_failslab+0x10/0x28 [ 76.211895][ T5112] slab_pre_alloc_hook+0x64/0xec [ 76.212619][ T5112] kmem_cache_alloc+0x94/0x3e4 [ 76.213304][ T5112] btrfs_alloc_path+0x5c/0x68 [ 76.214059][ T5112] btrfs_insert_dir_item+0x16c/0x3b8 [ 76.214829][ T5112] btrfs_add_link+0x294/0xa68 [ 76.215550][ T5112] btrfs_create+0x45c/0x508 [ 76.216203][ T5112] path_openat+0x1144/0x26e4 [ 76.216866][ T5112] do_filp_open+0x164/0x330 [ 76.217536][ T5112] do_sys_openat2+0x128/0x3d8 [ 76.218200][ T5112] __arm64_sys_openat+0x120/0x154 [ 76.218969][ T5112] invoke_syscall+0x98/0x2b8 [ 76.219614][ T5112] el0_svc_common+0x138/0x258 [ 76.220284][ T5112] do_el0_svc+0x58/0x14c [ 76.220930][ T5112] el0_svc+0x78/0x1e0 [ 76.221514][ T5112] el0t_64_sync_handler+0xcc/0xe4 [ 76.222278][ T5112] el0t_64_sync+0x1a0/0x1a4 [ 76.226604][ T5112] ------------[ cut here ]------------ [ 76.227570][ T5112] WARNING: CPU: 1 PID: 5112 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 76.228955][ T5112] Modules linked in: [ 76.229556][ T5112] CPU: 1 PID: 5112 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 76.230682][ T5112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.231995][ T5112] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.233106][ T5112] pc : btrfs_add_link+0x6e8/0xa68 [ 76.233836][ T5112] lr : btrfs_add_link+0x6e8/0xa68 [ 76.234614][ T5112] sp : ffff8000200d7580 [ 76.235251][ T5112] x29: ffff8000200d7680 x28: ffff0000df26d790 x27: 0000000000000108 [ 76.236386][ T5112] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 76.237479][ T5112] x23: 0000000000000014 x22: 1fffe0001be4dafd x21: ffff70000401aeb8 [ 76.238677][ T5112] x20: 00000000fffffff4 x19: ffff0000df26d7e8 x18: 0000000000000001 [ 76.239807][ T5112] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 76.240918][ T5112] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 76.242079][ T5112] x11: 0000000000000000 x10: 0000000000000000 x9 : 3673f905610a0700 [ 76.243222][ T5112] x8 : 3673f905610a0700 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.244452][ T5112] x5 : ffff8000200d6e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 76.245808][ T5112] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.246947][ T5112] Call trace: [ 76.247431][ T5112] btrfs_add_link+0x6e8/0xa68 [ 76.248104][ T5112] btrfs_create+0x45c/0x508 [ 76.248765][ T5112] path_openat+0x1144/0x26e4 [ 76.249431][ T5112] do_filp_open+0x164/0x330 [ 76.250146][ T5112] do_sys_openat2+0x128/0x3d8 [ 76.250843][ T5112] __arm64_sys_openat+0x120/0x154 [ 76.251576][ T5112] invoke_syscall+0x98/0x2b8 [ 76.252285][ T5112] el0_svc_common+0x138/0x258 [ 76.252963][ T5112] do_el0_svc+0x58/0x14c [ 76.253603][ T5112] el0_svc+0x78/0x1e0 [ 76.254171][ T5112] el0t_64_sync_handler+0xcc/0xe4 [ 76.254937][ T5112] el0t_64_sync+0x1a0/0x1a4 [ 76.255576][ T5112] irq event stamp: 84754 [ 76.256232][ T5112] hardirqs last enabled at (84753): [] __up_console_sem+0xb4/0x100 [ 76.257530][ T5112] hardirqs last disabled at (84754): [] el1_dbg+0x24/0x80 [ 76.258902][ T5112] softirqs last enabled at (84730): [] handle_softirqs+0xa4c/0xbf0 [ 76.260361][ T5112] softirqs last disabled at (84657): [] __irq_exit_rcu+0x240/0x440 [ 76.261797][ T5112] ---[ end trace a7888953c9d801d1 ]--- [ 76.265046][ T5112] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 76.266374][ T5112] BTRFS info (device loop0): forced readonly [ 76.268212][ T1605] team0 (unregistering): Port device team_slave_1 removed [ 76.283816][ T1605] team0 (unregistering): Port device team_slave_0 removed [ 76.321757][ T1605] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 76.350726][ T1605] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 76.457906][ T5138] loop0: detected capacity change from 0 to 32768 [ 76.470648][ T1605] bond0 (unregistering): Released all slaves [ 76.489736][ T5138] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.19 (5138) [ 76.498767][ T5138] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 76.500163][ T5138] BTRFS info (device loop0): setting nodatacow, compression disabled [ 76.501455][ T5138] BTRFS info (device loop0): setting datacow [ 76.502338][ T5138] BTRFS info (device loop0): doing ref verification [ 76.503316][ T5138] BTRFS info (device loop0): force clearing of disk cache [ 76.504771][ T5138] BTRFS info (device loop0): turning off barriers [ 76.505753][ T5138] BTRFS info (device loop0): use zlib compression, level 3 [ 76.506809][ T5138] BTRFS info (device loop0): using free space tree [ 76.507721][ T5138] BTRFS info (device loop0): has skinny extents [ 76.520855][ T5138] BTRFS info (device loop0): clearing free space tree [ 76.521989][ T5138] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 76.523563][ T5138] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 76.528575][ T5138] BTRFS info (device loop0): creating free space tree [ 76.530002][ T5138] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 76.531368][ T5138] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 76.537393][ T5138] FAULT_INJECTION: forcing a failure. [ 76.537393][ T5138] name failslab, interval 1, probability 0, space 0, times 0 [ 76.539190][ T5138] CPU: 0 PID: 5138 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 76.540377][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.541828][ T5138] Call trace: [ 76.542276][ T5138] dump_backtrace+0x0/0x43c [ 76.542907][ T5138] show_stack+0x2c/0x3c [ 76.543509][ T5138] __dump_stack+0x30/0x40 [ 76.544081][ T5138] dump_stack_lvl+0xf8/0x160 [ 76.544803][ T5138] dump_stack+0x1c/0x5c [ 76.545455][ T5138] should_fail+0x3c0/0x51c [ 76.546072][ T5138] __should_failslab+0xbc/0x10c [ 76.546723][ T5138] should_failslab+0x10/0x28 [ 76.547371][ T5138] slab_pre_alloc_hook+0x64/0xec [ 76.548080][ T5138] kmem_cache_alloc+0x94/0x3e4 [ 76.548793][ T5138] security_inode_alloc+0x38/0x11c [ 76.549559][ T5138] inode_init_always+0x670/0xa84 [ 76.550358][ T5138] new_inode_pseudo+0x7c/0x1fc [ 76.551130][ T5138] new_inode+0x38/0x174 [ 76.551750][ T5138] btrfs_new_inode+0x148/0x1538 [ 76.552524][ T5138] btrfs_create+0x248/0x508 [ 76.553195][ T5138] path_openat+0x1144/0x26e4 [ 76.553918][ T5138] do_filp_open+0x164/0x330 [ 76.554561][ T5138] do_sys_openat2+0x128/0x3d8 [ 76.555306][ T5138] __arm64_sys_openat+0x120/0x154 [ 76.556061][ T5138] invoke_syscall+0x98/0x2b8 [ 76.556713][ T5138] el0_svc_common+0x138/0x258 [ 76.557384][ T5138] do_el0_svc+0x58/0x14c [ 76.558025][ T5138] el0_svc+0x78/0x1e0 [ 76.558602][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 76.559367][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 76.738639][ T5160] loop0: detected capacity change from 0 to 32768 [ 76.776424][ T5160] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.20 (5160) [ 76.825825][ T5160] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 76.827200][ T5160] BTRFS info (device loop0): setting nodatacow, compression disabled [ 76.828432][ T5160] BTRFS info (device loop0): setting datacow [ 76.829371][ T5160] BTRFS info (device loop0): doing ref verification [ 76.830362][ T5160] BTRFS info (device loop0): force clearing of disk cache [ 76.831483][ T5160] BTRFS info (device loop0): turning off barriers [ 76.832484][ T5160] BTRFS info (device loop0): use zlib compression, level 3 [ 76.833555][ T5160] BTRFS info (device loop0): using free space tree [ 76.835266][ T5160] BTRFS info (device loop0): has skinny extents [ 76.843286][ T5160] BTRFS info (device loop0): clearing free space tree [ 76.844456][ T5160] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 76.845972][ T5160] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 76.849969][ T5160] BTRFS info (device loop0): creating free space tree [ 76.851323][ T5160] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 76.852924][ T5160] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 76.858476][ T5160] FAULT_INJECTION: forcing a failure. [ 76.858476][ T5160] name failslab, interval 1, probability 0, space 0, times 0 [ 76.860505][ T5160] CPU: 1 PID: 5160 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 76.861846][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.863453][ T5160] Call trace: [ 76.863951][ T5160] dump_backtrace+0x0/0x43c [ 76.864619][ T5160] show_stack+0x2c/0x3c [ 76.865276][ T5160] __dump_stack+0x30/0x40 [ 76.865937][ T5160] dump_stack_lvl+0xf8/0x160 [ 76.866668][ T5160] dump_stack+0x1c/0x5c [ 76.867252][ T5160] should_fail+0x3c0/0x51c [ 76.867897][ T5160] __should_failslab+0xbc/0x10c [ 76.868703][ T5160] should_failslab+0x10/0x28 [ 76.869355][ T5160] slab_pre_alloc_hook+0x64/0xec [ 76.870080][ T5160] kmem_cache_alloc+0x94/0x3e4 [ 76.870788][ T5160] btrfs_get_or_create_delayed_node+0x128/0x4c8 [ 76.871734][ T5160] btrfs_delayed_update_inode+0x3c/0x1b7c [ 76.872586][ T5160] btrfs_update_inode+0x210/0x3d4 [ 76.873340][ T5160] btrfs_create+0x360/0x508 [ 76.874049][ T5160] path_openat+0x1144/0x26e4 [ 76.874764][ T5160] do_filp_open+0x164/0x330 [ 76.875417][ T5160] do_sys_openat2+0x128/0x3d8 [ 76.876057][ T5160] __arm64_sys_openat+0x120/0x154 [ 76.876780][ T5160] invoke_syscall+0x98/0x2b8 [ 76.877480][ T5160] el0_svc_common+0x138/0x258 [ 76.878233][ T5160] do_el0_svc+0x58/0x14c [ 76.878854][ T5160] el0_svc+0x78/0x1e0 [ 76.879502][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 76.880337][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 76.946894][ T4896] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 12 /dev/loop0 scanned by udevd (4896) [ 77.051944][ T5181] loop0: detected capacity change from 0 to 32768 [ 77.145415][ T5181] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 77.146785][ T5181] BTRFS info (device loop0): setting nodatacow, compression disabled [ 77.148036][ T5181] BTRFS info (device loop0): setting datacow [ 77.148897][ T5181] BTRFS info (device loop0): doing ref verification [ 77.149839][ T5181] BTRFS info (device loop0): force clearing of disk cache [ 77.150883][ T5181] BTRFS info (device loop0): turning off barriers [ 77.167861][ T5181] FAULT_INJECTION: forcing a failure. [ 77.167861][ T5181] name failslab, interval 1, probability 0, space 0, times 0 [ 77.169878][ T5181] CPU: 0 PID: 5181 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 77.171131][ T5181] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.172577][ T5181] Call trace: [ 77.173010][ T5181] dump_backtrace+0x0/0x43c [ 77.173708][ T5181] show_stack+0x2c/0x3c [ 77.174336][ T5181] __dump_stack+0x30/0x40 [ 77.174922][ T5181] dump_stack_lvl+0xf8/0x160 [ 77.175572][ T5181] dump_stack+0x1c/0x5c [ 77.176169][ T5181] should_fail+0x3c0/0x51c [ 77.176842][ T5181] __should_failslab+0xbc/0x10c [ 77.177605][ T5181] should_failslab+0x10/0x28 [ 77.178258][ T5181] slab_pre_alloc_hook+0x64/0xec [ 77.178976][ T5181] kmem_cache_alloc+0x94/0x3e4 [ 77.179660][ T5181] btrfs_alloc_path+0x5c/0x68 [ 77.180365][ T5181] btrfs_insert_dir_item+0x16c/0x3b8 [ 77.181142][ T5181] btrfs_add_link+0x294/0xa68 [ 77.181812][ T5181] btrfs_create+0x45c/0x508 [ 77.182517][ T5181] path_openat+0x1144/0x26e4 [ 77.183151][ T5181] do_filp_open+0x164/0x330 [ 77.183823][ T5181] do_sys_openat2+0x128/0x3d8 [ 77.184451][ T5181] __arm64_sys_openat+0x120/0x154 [ 77.185147][ T5181] invoke_syscall+0x98/0x2b8 [ 77.185856][ T5181] el0_svc_common+0x138/0x258 [ 77.186545][ T5181] do_el0_svc+0x58/0x14c [ 77.187187][ T5181] el0_svc+0x78/0x1e0 [ 77.187735][ T5181] el0t_64_sync_handler+0xcc/0xe4 [ 77.188493][ T5181] el0t_64_sync+0x1a0/0x1a4 [ 77.192067][ T5181] ------------[ cut here ]------------ [ 77.193043][ T5181] WARNING: CPU: 0 PID: 5181 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 77.194471][ T5181] Modules linked in: [ 77.195052][ T5181] CPU: 0 PID: 5181 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 77.196302][ T5181] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.197906][ T5181] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.199002][ T5181] pc : btrfs_add_link+0x6e8/0xa68 [ 77.199745][ T5181] lr : btrfs_add_link+0x6e8/0xa68 [ 77.200437][ T5181] sp : ffff80001f307580 [ 77.201011][ T5181] x29: ffff80001f307680 x28: ffff0000df2baa50 x27: 0000000000000108 [ 77.202157][ T5181] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 77.203323][ T5181] x23: 0000000000000014 x22: 1fffe0001be57555 x21: ffff700003e60eb8 [ 77.204497][ T5181] x20: 00000000fffffff4 x19: ffff0000df2baaa8 x18: 0000000000000001 [ 77.205623][ T5181] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 77.206805][ T5181] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 77.207926][ T5181] x11: 0000000000000000 x10: 0000000000000000 x9 : 55d612c61b8d7600 [ 77.209187][ T5181] x8 : 55d612c61b8d7600 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.210356][ T5181] x5 : ffff80001f306e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 77.211438][ T5181] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.212532][ T5181] Call trace: [ 77.212969][ T5181] btrfs_add_link+0x6e8/0xa68 [ 77.213641][ T5181] btrfs_create+0x45c/0x508 [ 77.214291][ T5181] path_openat+0x1144/0x26e4 [ 77.214944][ T5181] do_filp_open+0x164/0x330 [ 77.215625][ T5181] do_sys_openat2+0x128/0x3d8 [ 77.216352][ T5181] __arm64_sys_openat+0x120/0x154 [ 77.217074][ T5181] invoke_syscall+0x98/0x2b8 [ 77.217757][ T5181] el0_svc_common+0x138/0x258 [ 77.218362][ T5181] do_el0_svc+0x58/0x14c [ 77.218980][ T5181] el0_svc+0x78/0x1e0 [ 77.219578][ T5181] el0t_64_sync_handler+0xcc/0xe4 [ 77.220322][ T5181] el0t_64_sync+0x1a0/0x1a4 [ 77.220892][ T5181] irq event stamp: 81288 [ 77.221523][ T5181] hardirqs last enabled at (81287): [] __up_console_sem+0xb4/0x100 [ 77.222847][ T5181] hardirqs last disabled at (81288): [] el1_dbg+0x24/0x80 [ 77.224120][ T5181] softirqs last enabled at (81268): [] handle_softirqs+0xa4c/0xbf0 [ 77.225593][ T5181] softirqs last disabled at (81255): [] __irq_exit_rcu+0x240/0x440 [ 77.226948][ T5181] ---[ end trace a7888953c9d801d2 ]--- [ 77.231820][ T5181] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 77.376880][ T5204] loop0: detected capacity change from 0 to 32768 [ 77.470561][ T5204] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.22 (5204) [ 77.504655][ T5204] FAULT_INJECTION: forcing a failure. [ 77.504655][ T5204] name failslab, interval 1, probability 0, space 0, times 0 [ 77.506537][ T5204] CPU: 0 PID: 5204 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 77.507738][ T5204] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.509212][ T5204] Call trace: [ 77.509709][ T5204] dump_backtrace+0x0/0x43c [ 77.510402][ T5204] show_stack+0x2c/0x3c [ 77.511063][ T5204] __dump_stack+0x30/0x40 [ 77.511749][ T5204] dump_stack_lvl+0xf8/0x160 [ 77.512395][ T5204] dump_stack+0x1c/0x5c [ 77.512981][ T5204] should_fail+0x3c0/0x51c [ 77.513655][ T5204] __should_failslab+0xbc/0x10c [ 77.514355][ T5204] should_failslab+0x10/0x28 [ 77.515034][ T5204] slab_pre_alloc_hook+0x64/0xec [ 77.515714][ T5204] kmem_cache_alloc+0x94/0x3e4 [ 77.516423][ T5204] security_inode_alloc+0x38/0x11c [ 77.517155][ T5204] inode_init_always+0x670/0xa84 [ 77.517869][ T5204] new_inode_pseudo+0x7c/0x1fc [ 77.518580][ T5204] new_inode+0x38/0x174 [ 77.519172][ T5204] btrfs_new_inode+0x148/0x1538 [ 77.519889][ T5204] btrfs_create+0x248/0x508 [ 77.520554][ T5204] path_openat+0x1144/0x26e4 [ 77.521189][ T5204] do_filp_open+0x164/0x330 [ 77.521856][ T5204] do_sys_openat2+0x128/0x3d8 [ 77.522520][ T5204] __arm64_sys_openat+0x120/0x154 [ 77.523196][ T5204] invoke_syscall+0x98/0x2b8 [ 77.523887][ T5204] el0_svc_common+0x138/0x258 [ 77.524547][ T5204] do_el0_svc+0x58/0x14c [ 77.525179][ T5204] el0_svc+0x78/0x1e0 [ 77.525730][ T5204] el0t_64_sync_handler+0xcc/0xe4 [ 77.526394][ T5204] el0t_64_sync+0x1a0/0x1a4 [ 77.694516][ T5066] Bluetooth: hci1: command 0x041b tx timeout [ 77.715883][ T5226] loop0: detected capacity change from 0 to 32768 [ 77.755545][ T5226] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.23 (5226) [ 77.920775][ T5226] FAULT_INJECTION: forcing a failure. [ 77.920775][ T5226] name failslab, interval 1, probability 0, space 0, times 0 [ 77.933127][ T5226] CPU: 1 PID: 5226 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 77.934487][ T5226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.936025][ T5226] Call trace: [ 77.936524][ T5226] dump_backtrace+0x0/0x43c [ 77.937257][ T5226] show_stack+0x2c/0x3c [ 77.937864][ T5226] __dump_stack+0x30/0x40 [ 77.938512][ T5226] dump_stack_lvl+0xf8/0x160 [ 77.939237][ T5226] dump_stack+0x1c/0x5c [ 77.939888][ T5226] should_fail+0x3c0/0x51c [ 77.940589][ T5226] __should_failslab+0xbc/0x10c [ 77.941327][ T5226] should_failslab+0x10/0x28 [ 77.942071][ T5226] slab_pre_alloc_hook+0x64/0xec [ 77.942847][ T5226] kmem_cache_alloc+0x94/0x3e4 [ 77.943599][ T5226] btrfs_alloc_path+0x5c/0x68 [ 77.944258][ T5226] btrfs_insert_dir_item+0x16c/0x3b8 [ 77.945004][ T5226] btrfs_add_link+0x294/0xa68 [ 77.945785][ T5226] btrfs_create+0x45c/0x508 [ 77.946516][ T5226] path_openat+0x1144/0x26e4 [ 77.947276][ T5226] do_filp_open+0x164/0x330 [ 77.947941][ T5226] do_sys_openat2+0x128/0x3d8 [ 77.948651][ T5226] __arm64_sys_openat+0x120/0x154 [ 77.949366][ T5226] invoke_syscall+0x98/0x2b8 [ 77.950019][ T5226] el0_svc_common+0x138/0x258 [ 77.950806][ T5226] do_el0_svc+0x58/0x14c [ 77.951384][ T5226] el0_svc+0x78/0x1e0 [ 77.951967][ T5226] el0t_64_sync_handler+0xcc/0xe4 [ 77.952723][ T5226] el0t_64_sync+0x1a0/0x1a4 [ 77.956985][ T5226] ------------[ cut here ]------------ [ 77.957911][ T5226] WARNING: CPU: 1 PID: 5226 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 77.959197][ T5226] Modules linked in: [ 77.959734][ T5226] CPU: 1 PID: 5226 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 77.960962][ T5226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.962341][ T5226] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.963432][ T5226] pc : btrfs_add_link+0x6e8/0xa68 [ 77.964106][ T5226] lr : btrfs_add_link+0x6e8/0xa68 [ 77.964869][ T5226] sp : ffff8000207f7580 [ 77.965459][ T5226] x29: ffff8000207f7680 x28: ffff0000d289b0b0 x27: 0000000000000108 [ 77.966640][ T5226] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 77.967822][ T5226] x23: 0000000000000014 x22: 1fffe0001a513621 x21: ffff7000040feeb8 [ 77.969057][ T5226] x20: 00000000fffffff4 x19: ffff0000d289b108 x18: 0000000000000001 [ 77.970170][ T5226] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 77.971513][ T5226] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 77.972749][ T5226] x11: 0000000000000000 x10: 0000000000000000 x9 : 5a81c732d4977300 [ 77.973883][ T5226] x8 : 5a81c732d4977300 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.975072][ T5226] x5 : ffff8000207f6e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 77.976337][ T5226] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.977547][ T5226] Call trace: [ 77.978055][ T5226] btrfs_add_link+0x6e8/0xa68 [ 77.978742][ T5226] btrfs_create+0x45c/0x508 [ 77.979392][ T5226] path_openat+0x1144/0x26e4 [ 77.980092][ T5226] do_filp_open+0x164/0x330 [ 77.980792][ T5226] do_sys_openat2+0x128/0x3d8 [ 77.981492][ T5226] __arm64_sys_openat+0x120/0x154 [ 77.982210][ T5226] invoke_syscall+0x98/0x2b8 [ 77.982904][ T5226] el0_svc_common+0x138/0x258 [ 77.983610][ T5226] do_el0_svc+0x58/0x14c [ 77.984259][ T5226] el0_svc+0x78/0x1e0 [ 77.984818][ T5226] el0t_64_sync_handler+0xcc/0xe4 [ 77.985561][ T5226] el0t_64_sync+0x1a0/0x1a4 [ 77.986250][ T5226] irq event stamp: 81694 [ 77.986842][ T5226] hardirqs last enabled at (81693): [] __up_console_sem+0xb4/0x100 [ 77.988197][ T5226] hardirqs last disabled at (81694): [] el1_dbg+0x24/0x80 [ 77.989463][ T5226] softirqs last enabled at (81674): [] handle_softirqs+0xa4c/0xbf0 [ 77.990724][ T5226] softirqs last disabled at (81543): [] __irq_exit_rcu+0x240/0x440 [ 77.992076][ T5226] ---[ end trace a7888953c9d801d3 ]--- [ 78.005183][ T5226] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 78.180728][ T5250] loop0: detected capacity change from 0 to 32768 [ 78.183292][ T5250] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.24 (5250) [ 78.224439][ T5250] FAULT_INJECTION: forcing a failure. [ 78.224439][ T5250] name failslab, interval 1, probability 0, space 0, times 0 [ 78.226337][ T5250] CPU: 0 PID: 5250 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 78.227556][ T5250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.229011][ T5250] Call trace: [ 78.229546][ T5250] dump_backtrace+0x0/0x43c [ 78.230202][ T5250] show_stack+0x2c/0x3c [ 78.230794][ T5250] __dump_stack+0x30/0x40 [ 78.231454][ T5250] dump_stack_lvl+0xf8/0x160 [ 78.232245][ T5250] dump_stack+0x1c/0x5c [ 78.232869][ T5250] should_fail+0x3c0/0x51c [ 78.233518][ T5250] __should_failslab+0xbc/0x10c [ 78.234321][ T5250] should_failslab+0x10/0x28 [ 78.234964][ T5250] slab_pre_alloc_hook+0x64/0xec [ 78.235743][ T5250] kmem_cache_alloc+0x94/0x3e4 [ 78.236425][ T5250] btrfs_alloc_path+0x5c/0x68 [ 78.237076][ T5250] btrfs_insert_dir_item+0x16c/0x3b8 [ 78.237887][ T5250] btrfs_add_link+0x294/0xa68 [ 78.238517][ T5250] btrfs_create+0x45c/0x508 [ 78.239210][ T5250] path_openat+0x1144/0x26e4 [ 78.239857][ T5250] do_filp_open+0x164/0x330 [ 78.240500][ T5250] do_sys_openat2+0x128/0x3d8 [ 78.241143][ T5250] __arm64_sys_openat+0x120/0x154 [ 78.241961][ T5250] invoke_syscall+0x98/0x2b8 [ 78.242627][ T5250] el0_svc_common+0x138/0x258 [ 78.243305][ T5250] do_el0_svc+0x58/0x14c [ 78.243926][ T5250] el0_svc+0x78/0x1e0 [ 78.244508][ T5250] el0t_64_sync_handler+0xcc/0xe4 [ 78.245209][ T5250] el0t_64_sync+0x1a0/0x1a4 [ 78.274442][ T5250] ------------[ cut here ]------------ [ 78.275417][ T5250] WARNING: CPU: 0 PID: 5250 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 78.276641][ T5250] Modules linked in: [ 78.277224][ T5250] CPU: 0 PID: 5250 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 78.278463][ T5250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.279894][ T5250] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.281018][ T5250] pc : btrfs_add_link+0x6e8/0xa68 [ 78.281669][ T5250] lr : btrfs_add_link+0x6e8/0xa68 [ 78.282455][ T5250] sp : ffff800020967580 [ 78.283017][ T5250] x29: ffff800020967680 x28: ffff0000df2badc0 x27: 0000000000000108 [ 78.284133][ T5250] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 78.285315][ T5250] x23: 0000000000000014 x22: 1fffe0001be575c3 x21: ffff70000412ceb8 [ 78.286468][ T5250] x20: 00000000fffffff4 x19: ffff0000df2bae18 x18: 0000000000000001 [ 78.287595][ T5250] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 78.288720][ T5250] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 78.289957][ T5250] x11: 0000000000000000 x10: 0000000000000000 x9 : a8ea186aaba34d00 [ 78.291153][ T5250] x8 : a8ea186aaba34d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.292353][ T5250] x5 : ffff800020966e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 78.293497][ T5250] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.294633][ T5250] Call trace: [ 78.295077][ T5250] btrfs_add_link+0x6e8/0xa68 [ 78.295800][ T5250] btrfs_create+0x45c/0x508 [ 78.296439][ T5250] path_openat+0x1144/0x26e4 [ 78.297072][ T5250] do_filp_open+0x164/0x330 [ 78.297757][ T5250] do_sys_openat2+0x128/0x3d8 [ 78.298424][ T5250] __arm64_sys_openat+0x120/0x154 [ 78.299130][ T5250] invoke_syscall+0x98/0x2b8 [ 78.299784][ T5250] el0_svc_common+0x138/0x258 [ 78.300476][ T5250] do_el0_svc+0x58/0x14c [ 78.301092][ T5250] el0_svc+0x78/0x1e0 [ 78.301688][ T5250] el0t_64_sync_handler+0xcc/0xe4 [ 78.302472][ T5250] el0t_64_sync+0x1a0/0x1a4 [ 78.303173][ T5250] irq event stamp: 82562 [ 78.303826][ T5250] hardirqs last enabled at (82561): [] __up_console_sem+0xb4/0x100 [ 78.305356][ T5250] hardirqs last disabled at (82562): [] el1_dbg+0x24/0x80 [ 78.306739][ T5250] softirqs last enabled at (82538): [] handle_softirqs+0xa4c/0xbf0 [ 78.308240][ T5250] softirqs last disabled at (82477): [] __irq_exit_rcu+0x240/0x440 [ 78.309628][ T5250] ---[ end trace a7888953c9d801d4 ]--- [ 78.323779][ T5250] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 78.508906][ T5275] loop0: detected capacity change from 0 to 32768 [ 78.575409][ T5275] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.25 (5275) [ 78.641423][ T5275] FAULT_INJECTION: forcing a failure. [ 78.641423][ T5275] name failslab, interval 1, probability 0, space 0, times 0 [ 78.643616][ T5275] CPU: 0 PID: 5275 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 78.644846][ T5275] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.646297][ T5275] Call trace: [ 78.646754][ T5275] dump_backtrace+0x0/0x43c [ 78.647476][ T5275] show_stack+0x2c/0x3c [ 78.648048][ T5275] __dump_stack+0x30/0x40 [ 78.648688][ T5275] dump_stack_lvl+0xf8/0x160 [ 78.649350][ T5275] dump_stack+0x1c/0x5c [ 78.649926][ T5275] should_fail+0x3c0/0x51c [ 78.650550][ T5275] __should_failslab+0xbc/0x10c [ 78.651223][ T5275] should_failslab+0x10/0x28 [ 78.651904][ T5275] slab_pre_alloc_hook+0x64/0xec [ 78.652635][ T5275] kmem_cache_alloc+0x94/0x3e4 [ 78.653338][ T5275] btrfs_alloc_path+0x5c/0x68 [ 78.654004][ T5275] btrfs_insert_dir_item+0x16c/0x3b8 [ 78.654812][ T5275] btrfs_add_link+0x294/0xa68 [ 78.655478][ T5275] btrfs_create+0x45c/0x508 [ 78.656109][ T5275] path_openat+0x1144/0x26e4 [ 78.656734][ T5275] do_filp_open+0x164/0x330 [ 78.657385][ T5275] do_sys_openat2+0x128/0x3d8 [ 78.658090][ T5275] __arm64_sys_openat+0x120/0x154 [ 78.658862][ T5275] invoke_syscall+0x98/0x2b8 [ 78.659533][ T5275] el0_svc_common+0x138/0x258 [ 78.660231][ T5275] do_el0_svc+0x58/0x14c [ 78.660845][ T5275] el0_svc+0x78/0x1e0 [ 78.661420][ T5275] el0t_64_sync_handler+0xcc/0xe4 [ 78.662118][ T5275] el0t_64_sync+0x1a0/0x1a4 [ 78.674541][ T5275] ------------[ cut here ]------------ [ 78.675406][ T5275] WARNING: CPU: 0 PID: 5275 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 78.676662][ T5275] Modules linked in: [ 78.677203][ T5275] CPU: 0 PID: 5275 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 78.678343][ T5275] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.679772][ T5275] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.680828][ T5275] pc : btrfs_add_link+0x6e8/0xa68 [ 78.681517][ T5275] lr : btrfs_add_link+0x6e8/0xa68 [ 78.682258][ T5275] sp : ffff800020b27580 [ 78.682780][ T5275] x29: ffff800020b27680 x28: ffff0000dd2d70b0 x27: 0000000000000108 [ 78.683933][ T5275] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 78.685062][ T5275] x23: 0000000000000014 x22: 1fffe0001ba5ae21 x21: ffff700004164eb8 [ 78.686195][ T5275] x20: 00000000fffffff4 x19: ffff0000dd2d7108 x18: 0000000000000001 [ 78.687431][ T5275] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 78.688635][ T5275] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 78.689797][ T5275] x11: 0000000000000000 x10: 0000000000000000 x9 : 6bc99e4c97cca400 [ 78.690964][ T5275] x8 : 6bc99e4c97cca400 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.692169][ T5275] x5 : ffff800020b26e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 78.693405][ T5275] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.694585][ T5275] Call trace: [ 78.695069][ T5275] btrfs_add_link+0x6e8/0xa68 [ 78.695731][ T5275] btrfs_create+0x45c/0x508 [ 78.696396][ T5275] path_openat+0x1144/0x26e4 [ 78.697093][ T5275] do_filp_open+0x164/0x330 [ 78.697729][ T5275] do_sys_openat2+0x128/0x3d8 [ 78.698453][ T5275] __arm64_sys_openat+0x120/0x154 [ 78.699237][ T5275] invoke_syscall+0x98/0x2b8 [ 78.699955][ T5275] el0_svc_common+0x138/0x258 [ 78.700585][ T5275] do_el0_svc+0x58/0x14c [ 78.701319][ T5275] el0_svc+0x78/0x1e0 [ 78.701893][ T5275] el0t_64_sync_handler+0xcc/0xe4 [ 78.702670][ T5275] el0t_64_sync+0x1a0/0x1a4 [ 78.703306][ T5275] irq event stamp: 82490 [ 78.703906][ T5275] hardirqs last enabled at (82489): [] __up_console_sem+0xb4/0x100 [ 78.705322][ T5275] hardirqs last disabled at (82490): [] el1_dbg+0x24/0x80 [ 78.706609][ T5275] softirqs last enabled at (82470): [] handle_softirqs+0xa4c/0xbf0 [ 78.707980][ T5275] softirqs last disabled at (82413): [] __irq_exit_rcu+0x240/0x440 [ 78.709373][ T5275] ---[ end trace a7888953c9d801d5 ]--- [ 78.710492][ T5275] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory 1970/01/01 00:01:18 executed programs: 13 [ 78.862358][ T5297] loop0: detected capacity change from 0 to 32768 [ 78.871358][ T5297] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.26 (5297) [ 78.892148][ T5297] FAULT_INJECTION: forcing a failure. [ 78.892148][ T5297] name failslab, interval 1, probability 0, space 0, times 0 [ 78.895258][ T5297] CPU: 1 PID: 5297 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 78.896600][ T5297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.898152][ T5297] Call trace: [ 78.898660][ T5297] dump_backtrace+0x0/0x43c [ 78.899332][ T5297] show_stack+0x2c/0x3c [ 78.899960][ T5297] __dump_stack+0x30/0x40 [ 78.900574][ T5297] dump_stack_lvl+0xf8/0x160 [ 78.901259][ T5297] dump_stack+0x1c/0x5c [ 78.901843][ T5297] should_fail+0x3c0/0x51c [ 78.902493][ T5297] __should_failslab+0xbc/0x10c [ 78.903189][ T5297] should_failslab+0x10/0x28 [ 78.903849][ T5297] slab_pre_alloc_hook+0x64/0xec [ 78.904598][ T5297] kmem_cache_alloc+0x94/0x3e4 [ 78.905325][ T5297] btrfs_alloc_path+0x5c/0x68 [ 78.906038][ T5297] btrfs_insert_dir_item+0x16c/0x3b8 [ 78.906781][ T5297] btrfs_add_link+0x294/0xa68 [ 78.907456][ T5297] btrfs_create+0x45c/0x508 [ 78.908146][ T5297] path_openat+0x1144/0x26e4 [ 78.908830][ T5297] do_filp_open+0x164/0x330 [ 78.909479][ T5297] do_sys_openat2+0x128/0x3d8 [ 78.910181][ T5297] __arm64_sys_openat+0x120/0x154 [ 78.910848][ T5297] invoke_syscall+0x98/0x2b8 [ 78.911463][ T5297] el0_svc_common+0x138/0x258 [ 78.912127][ T5297] do_el0_svc+0x58/0x14c [ 78.912724][ T5297] el0_svc+0x78/0x1e0 [ 78.913256][ T5297] el0t_64_sync_handler+0xcc/0xe4 [ 78.913976][ T5297] el0t_64_sync+0x1a0/0x1a4 [ 78.916787][ T5297] ------------[ cut here ]------------ [ 78.917713][ T5297] WARNING: CPU: 1 PID: 5297 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 78.919060][ T5297] Modules linked in: [ 78.919675][ T5297] CPU: 1 PID: 5297 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 78.921064][ T5297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.922555][ T5297] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.923620][ T5297] pc : btrfs_add_link+0x6e8/0xa68 [ 78.924376][ T5297] lr : btrfs_add_link+0x6e8/0xa68 [ 78.925143][ T5297] sp : ffff800020a17580 [ 78.925785][ T5297] x29: ffff800020a17680 x28: ffff0000d289b4d0 x27: 0000000000000108 [ 78.927008][ T5297] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 78.928192][ T5297] x23: 0000000000000014 x22: 1fffe0001a5136a5 x21: ffff700004142eb8 [ 78.929415][ T5297] x20: 00000000fffffff4 x19: ffff0000d289b528 x18: 0000000000000001 [ 78.930644][ T5297] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 78.931838][ T5297] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 78.932993][ T5297] x11: 0000000000000000 x10: 0000000000000000 x9 : 906d6af0d2662b00 [ 78.934150][ T5297] x8 : 906d6af0d2662b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.935379][ T5297] x5 : ffff800020a16e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 78.936542][ T5297] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.937849][ T5297] Call trace: [ 78.938335][ T5297] btrfs_add_link+0x6e8/0xa68 [ 78.939083][ T5297] btrfs_create+0x45c/0x508 [ 78.939737][ T5297] path_openat+0x1144/0x26e4 [ 78.940427][ T5297] do_filp_open+0x164/0x330 [ 78.941106][ T5297] do_sys_openat2+0x128/0x3d8 [ 78.941830][ T5297] __arm64_sys_openat+0x120/0x154 [ 78.942606][ T5297] invoke_syscall+0x98/0x2b8 [ 78.943265][ T5297] el0_svc_common+0x138/0x258 [ 78.943990][ T5297] do_el0_svc+0x58/0x14c [ 78.944651][ T5297] el0_svc+0x78/0x1e0 [ 78.945253][ T5297] el0t_64_sync_handler+0xcc/0xe4 [ 78.945989][ T5297] el0t_64_sync+0x1a0/0x1a4 [ 78.946680][ T5297] irq event stamp: 83248 [ 78.947241][ T5297] hardirqs last enabled at (83247): [] __up_console_sem+0xb4/0x100 [ 78.948739][ T5297] hardirqs last disabled at (83248): [] el1_dbg+0x24/0x80 [ 78.949983][ T5297] softirqs last enabled at (83228): [] handle_softirqs+0xa4c/0xbf0 [ 78.951422][ T5297] softirqs last disabled at (83137): [] __irq_exit_rcu+0x240/0x440 [ 78.952812][ T5297] ---[ end trace a7888953c9d801d6 ]--- [ 78.958497][ T5297] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 79.101920][ T5319] loop0: detected capacity change from 0 to 32768 [ 79.110096][ T5319] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.27 (5319) [ 79.132774][ T5319] FAULT_INJECTION: forcing a failure. [ 79.132774][ T5319] name failslab, interval 1, probability 0, space 0, times 0 [ 79.135802][ T5319] CPU: 0 PID: 5319 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 79.137088][ T5319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.138627][ T5319] Call trace: [ 79.139140][ T5319] dump_backtrace+0x0/0x43c [ 79.139834][ T5319] show_stack+0x2c/0x3c [ 79.140448][ T5319] __dump_stack+0x30/0x40 [ 79.141065][ T5319] dump_stack_lvl+0xf8/0x160 [ 79.141701][ T5319] dump_stack+0x1c/0x5c [ 79.142302][ T5319] should_fail+0x3c0/0x51c [ 79.142943][ T5319] __should_failslab+0xbc/0x10c [ 79.143673][ T5319] should_failslab+0x10/0x28 [ 79.144343][ T5319] slab_pre_alloc_hook+0x64/0xec [ 79.145034][ T5319] kmem_cache_alloc+0x94/0x3e4 [ 79.145698][ T5319] btrfs_alloc_path+0x5c/0x68 [ 79.146374][ T5319] btrfs_insert_dir_item+0x16c/0x3b8 [ 79.147075][ T5319] btrfs_add_link+0x294/0xa68 [ 79.147734][ T5319] btrfs_create+0x45c/0x508 [ 79.148379][ T5319] path_openat+0x1144/0x26e4 [ 79.149022][ T5319] do_filp_open+0x164/0x330 [ 79.149714][ T5319] do_sys_openat2+0x128/0x3d8 [ 79.150501][ T5319] __arm64_sys_openat+0x120/0x154 [ 79.151224][ T5319] invoke_syscall+0x98/0x2b8 [ 79.151936][ T5319] el0_svc_common+0x138/0x258 [ 79.152618][ T5319] do_el0_svc+0x58/0x14c [ 79.153245][ T5319] el0_svc+0x78/0x1e0 [ 79.153859][ T5319] el0t_64_sync_handler+0xcc/0xe4 [ 79.154590][ T5319] el0t_64_sync+0x1a0/0x1a4 [ 79.156243][ T5319] ------------[ cut here ]------------ [ 79.157167][ T5319] WARNING: CPU: 0 PID: 5319 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 79.158573][ T5319] Modules linked in: [ 79.159152][ T5319] CPU: 0 PID: 5319 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 79.160286][ T5319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.161615][ T5319] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.162660][ T5319] pc : btrfs_add_link+0x6e8/0xa68 [ 79.163347][ T5319] lr : btrfs_add_link+0x6e8/0xa68 [ 79.164077][ T5319] sp : ffff800021117580 [ 79.164636][ T5319] x29: ffff800021117680 x28: ffff0000dd2d7370 x27: 0000000000000108 [ 79.165968][ T5319] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 79.167251][ T5319] x23: 0000000000000014 x22: 1fffe0001ba5ae79 x21: ffff700004222eb8 [ 79.168519][ T5319] x20: 00000000fffffff4 x19: ffff0000dd2d73c8 x18: 0000000000000001 [ 79.169753][ T5319] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 79.170954][ T5319] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.172256][ T5319] x11: 0000000000000000 x10: 0000000000000000 x9 : cc966ffa969a4f00 [ 79.173495][ T5319] x8 : cc966ffa969a4f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.174727][ T5319] x5 : ffff800021116e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 79.175923][ T5319] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.177116][ T5319] Call trace: [ 79.177578][ T5319] btrfs_add_link+0x6e8/0xa68 [ 79.178298][ T5319] btrfs_create+0x45c/0x508 [ 79.178988][ T5319] path_openat+0x1144/0x26e4 [ 79.179660][ T5319] do_filp_open+0x164/0x330 [ 79.180312][ T5319] do_sys_openat2+0x128/0x3d8 [ 79.180998][ T5319] __arm64_sys_openat+0x120/0x154 [ 79.181714][ T5319] invoke_syscall+0x98/0x2b8 [ 79.182406][ T5319] el0_svc_common+0x138/0x258 [ 79.183046][ T5319] do_el0_svc+0x58/0x14c [ 79.183621][ T5319] el0_svc+0x78/0x1e0 [ 79.184154][ T5319] el0t_64_sync_handler+0xcc/0xe4 [ 79.184838][ T5319] el0t_64_sync+0x1a0/0x1a4 [ 79.185532][ T5319] irq event stamp: 82294 [ 79.186131][ T5319] hardirqs last enabled at (82293): [] __up_console_sem+0xb4/0x100 [ 79.187456][ T5319] hardirqs last disabled at (82294): [] el1_dbg+0x24/0x80 [ 79.188822][ T5319] softirqs last enabled at (82274): [] handle_softirqs+0xa4c/0xbf0 [ 79.190203][ T5319] softirqs last disabled at (82177): [] __irq_exit_rcu+0x240/0x440 [ 79.191598][ T5319] ---[ end trace a7888953c9d801d7 ]--- [ 79.192618][ T5319] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 79.345924][ T5343] loop0: detected capacity change from 0 to 32768 [ 79.348233][ T5343] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.28 (5343) [ 79.401029][ T5343] FAULT_INJECTION: forcing a failure. [ 79.401029][ T5343] name failslab, interval 1, probability 0, space 0, times 0 [ 79.402992][ T5343] CPU: 1 PID: 5343 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 79.404322][ T5343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.405898][ T5343] Call trace: [ 79.406408][ T5343] dump_backtrace+0x0/0x43c [ 79.407065][ T5343] show_stack+0x2c/0x3c [ 79.407664][ T5343] __dump_stack+0x30/0x40 [ 79.408365][ T5343] dump_stack_lvl+0xf8/0x160 [ 79.409050][ T5343] dump_stack+0x1c/0x5c [ 79.409667][ T5343] should_fail+0x3c0/0x51c [ 79.410253][ T5343] __should_failslab+0xbc/0x10c [ 79.410972][ T5343] should_failslab+0x10/0x28 [ 79.411669][ T5343] slab_pre_alloc_hook+0x64/0xec [ 79.412387][ T5343] kmem_cache_alloc+0x94/0x3e4 [ 79.413129][ T5343] btrfs_alloc_path+0x5c/0x68 [ 79.413833][ T5343] btrfs_insert_dir_item+0x16c/0x3b8 [ 79.414620][ T5343] btrfs_add_link+0x294/0xa68 [ 79.415321][ T5343] btrfs_create+0x45c/0x508 [ 79.415997][ T5343] path_openat+0x1144/0x26e4 [ 79.416696][ T5343] do_filp_open+0x164/0x330 [ 79.417313][ T5343] do_sys_openat2+0x128/0x3d8 [ 79.418025][ T5343] __arm64_sys_openat+0x120/0x154 [ 79.418726][ T5343] invoke_syscall+0x98/0x2b8 [ 79.419437][ T5343] el0_svc_common+0x138/0x258 [ 79.420111][ T5343] do_el0_svc+0x58/0x14c [ 79.420765][ T5343] el0_svc+0x78/0x1e0 [ 79.421361][ T5343] el0t_64_sync_handler+0xcc/0xe4 [ 79.422073][ T5343] el0t_64_sync+0x1a0/0x1a4 [ 79.424528][ T5343] ------------[ cut here ]------------ [ 79.425540][ T5343] WARNING: CPU: 0 PID: 5343 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 79.426903][ T5343] Modules linked in: [ 79.427444][ T5343] CPU: 0 PID: 5343 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 79.428738][ T5343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.430115][ T5343] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.431254][ T5343] pc : btrfs_add_link+0x6e8/0xa68 [ 79.431945][ T5343] lr : btrfs_add_link+0x6e8/0xa68 [ 79.432678][ T5343] sp : ffff800021287580 [ 79.433260][ T5343] x29: ffff800021287680 x28: ffff0000d289b790 x27: 0000000000000108 [ 79.434357][ T5343] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 79.435554][ T5343] x23: 0000000000000014 x22: 1fffe0001a5136fd x21: ffff700004250eb8 [ 79.436751][ T5343] x20: 00000000fffffff4 x19: ffff0000d289b7e8 x18: 0000000000000001 [ 79.437935][ T5343] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 79.439045][ T5343] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.440175][ T5343] x11: 0000000000000000 x10: 0000000000000000 x9 : cfa6acb602502c00 [ 79.441325][ T5343] x8 : cfa6acb602502c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.442444][ T5343] x5 : ffff800021286e78 x4 : ffff8000141ff5a0 x3 : ffff800008302274 [ 79.443656][ T5343] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.444783][ T5343] Call trace: [ 79.445223][ T5343] btrfs_add_link+0x6e8/0xa68 [ 79.445855][ T5343] btrfs_create+0x45c/0x508 [ 79.446499][ T5343] path_openat+0x1144/0x26e4 [ 79.447112][ T5343] do_filp_open+0x164/0x330 [ 79.447748][ T5343] do_sys_openat2+0x128/0x3d8 [ 79.448489][ T5343] __arm64_sys_openat+0x120/0x154 [ 79.449237][ T5343] invoke_syscall+0x98/0x2b8 [ 79.449949][ T5343] el0_svc_common+0x138/0x258 [ 79.450645][ T5343] do_el0_svc+0x58/0x14c [ 79.451259][ T5343] el0_svc+0x78/0x1e0 [ 79.451833][ T5343] el0t_64_sync_handler+0xcc/0xe4 [ 79.452574][ T5343] el0t_64_sync+0x1a0/0x1a4 [ 79.453213][ T5343] irq event stamp: 81370 [ 79.453811][ T5343] hardirqs last enabled at (81369): [] __up_console_sem+0xb4/0x100 [ 79.455216][ T5343] hardirqs last disabled at (81370): [] el1_dbg+0x24/0x80 [ 79.456441][ T5343] softirqs last enabled at (81350): [] handle_softirqs+0xa4c/0xbf0 [ 79.457851][ T5343] softirqs last disabled at (81175): [] __irq_exit_rcu+0x240/0x440 [ 79.459190][ T5343] ---[ end trace a7888953c9d801d8 ]--- [ 79.461948][ T5343] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 79.608289][ T5366] loop0: detected capacity change from 0 to 32768 [ 79.657300][ T5366] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.29 (5366) [ 79.684551][ T5366] FAULT_INJECTION: forcing a failure. [ 79.684551][ T5366] name failslab, interval 1, probability 0, space 0, times 0 [ 79.686648][ T5366] CPU: 1 PID: 5366 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 79.687951][ T5366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.689635][ T5366] Call trace: [ 79.690191][ T5366] dump_backtrace+0x0/0x43c [ 79.690949][ T5366] show_stack+0x2c/0x3c [ 79.691547][ T5366] __dump_stack+0x30/0x40 [ 79.692234][ T5366] dump_stack_lvl+0xf8/0x160 [ 79.692957][ T5366] dump_stack+0x1c/0x5c [ 79.693547][ T5366] should_fail+0x3c0/0x51c [ 79.694250][ T5366] __should_failslab+0xbc/0x10c [ 79.694994][ T5366] should_failslab+0x10/0x28 [ 79.695682][ T5366] slab_pre_alloc_hook+0x64/0xec [ 79.696452][ T5366] kmem_cache_alloc+0x94/0x3e4 [ 79.697238][ T5366] btrfs_alloc_path+0x5c/0x68 [ 79.697953][ T5366] btrfs_insert_dir_item+0x16c/0x3b8 [ 79.698772][ T5366] btrfs_add_link+0x294/0xa68 [ 79.699468][ T5366] btrfs_create+0x45c/0x508 [ 79.700149][ T5366] path_openat+0x1144/0x26e4 [ 79.700765][ T5366] do_filp_open+0x164/0x330 [ 79.701424][ T5366] do_sys_openat2+0x128/0x3d8 [ 79.702069][ T5366] __arm64_sys_openat+0x120/0x154 [ 79.702802][ T5366] invoke_syscall+0x98/0x2b8 [ 79.703496][ T5366] el0_svc_common+0x138/0x258 [ 79.704266][ T5366] do_el0_svc+0x58/0x14c [ 79.704904][ T5366] el0_svc+0x78/0x1e0 [ 79.705473][ T5366] el0t_64_sync_handler+0xcc/0xe4 [ 79.706212][ T5366] el0t_64_sync+0x1a0/0x1a4 [ 79.707494][ T5366] ------------[ cut here ]------------ [ 79.708433][ T5366] WARNING: CPU: 1 PID: 5366 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 79.709814][ T5366] Modules linked in: [ 79.710390][ T5366] CPU: 1 PID: 5366 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 79.711652][ T5366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.713022][ T5366] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.714130][ T5366] pc : btrfs_add_link+0x6e8/0xa68 [ 79.714839][ T5366] lr : btrfs_add_link+0x6e8/0xa68 [ 79.715565][ T5366] sp : ffff8000213e7580 [ 79.716190][ T5366] x29: ffff8000213e7680 x28: ffff0000d289b840 x27: 0000000000000108 [ 79.717295][ T5366] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 79.718519][ T5366] x23: 0000000000000014 x22: 1fffe0001a513713 x21: ffff70000427ceb8 [ 79.719702][ T5366] x20: 00000000fffffff4 x19: ffff0000d289b898 x18: 0000000000000001 [ 79.720866][ T5366] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 79.722079][ T5366] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.723283][ T5366] x11: 0000000000000000 x10: 0000000000000000 x9 : ebea5b82c63e6b00 [ 79.724523][ T5366] x8 : ebea5b82c63e6b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.725729][ T5366] x5 : ffff8000213e6e78 x4 : ffff8000141ff5a0 x3 : ffff800008302274 [ 79.727012][ T5366] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.728184][ T5366] Call trace: [ 79.728723][ T5366] btrfs_add_link+0x6e8/0xa68 [ 79.729443][ T5366] btrfs_create+0x45c/0x508 [ 79.730211][ T5366] path_openat+0x1144/0x26e4 [ 79.730927][ T5366] do_filp_open+0x164/0x330 [ 79.731570][ T5366] do_sys_openat2+0x128/0x3d8 [ 79.732264][ T5366] __arm64_sys_openat+0x120/0x154 [ 79.732997][ T5366] invoke_syscall+0x98/0x2b8 [ 79.733649][ T5366] el0_svc_common+0x138/0x258 [ 79.734315][ T5366] do_el0_svc+0x58/0x14c [ 79.734926][ T5366] el0_svc+0x78/0x1e0 [ 79.735531][ T5366] el0t_64_sync_handler+0xcc/0xe4 [ 79.736322][ T5366] el0t_64_sync+0x1a0/0x1a4 [ 79.736963][ T5366] irq event stamp: 81606 [ 79.737632][ T5366] hardirqs last enabled at (81605): [] __up_console_sem+0xb4/0x100 [ 79.739027][ T5366] hardirqs last disabled at (81606): [] el1_dbg+0x24/0x80 [ 79.740329][ T5366] softirqs last enabled at (81586): [] handle_softirqs+0xa4c/0xbf0 [ 79.741743][ T5366] softirqs last disabled at (81483): [] __irq_exit_rcu+0x240/0x440 [ 79.743142][ T5366] ---[ end trace a7888953c9d801d9 ]--- [ 79.744235][ T5366] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 79.774832][ T5248] Bluetooth: hci1: command 0x040f tx timeout [ 79.890459][ T5388] loop0: detected capacity change from 0 to 32768 [ 79.949973][ T5388] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.30 (5388) [ 79.978843][ T5388] FAULT_INJECTION: forcing a failure. [ 79.978843][ T5388] name failslab, interval 1, probability 0, space 0, times 0 [ 79.980808][ T5388] CPU: 0 PID: 5388 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 79.982032][ T5388] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.983530][ T5388] Call trace: [ 79.984033][ T5388] dump_backtrace+0x0/0x43c [ 79.984696][ T5388] show_stack+0x2c/0x3c [ 79.985285][ T5388] __dump_stack+0x30/0x40 [ 79.985937][ T5388] dump_stack_lvl+0xf8/0x160 [ 79.986613][ T5388] dump_stack+0x1c/0x5c [ 79.987224][ T5388] should_fail+0x3c0/0x51c [ 79.987803][ T5388] __should_failslab+0xbc/0x10c [ 79.988487][ T5388] should_failslab+0x10/0x28 [ 79.989150][ T5388] slab_pre_alloc_hook+0x64/0xec [ 79.989850][ T5388] kmem_cache_alloc+0x94/0x3e4 [ 79.990581][ T5388] btrfs_alloc_path+0x5c/0x68 [ 79.991241][ T5388] btrfs_insert_dir_item+0x16c/0x3b8 [ 79.992037][ T5388] btrfs_add_link+0x294/0xa68 [ 79.992683][ T5388] btrfs_create+0x45c/0x508 [ 79.993374][ T5388] path_openat+0x1144/0x26e4 [ 79.994060][ T5388] do_filp_open+0x164/0x330 [ 79.994684][ T5388] do_sys_openat2+0x128/0x3d8 [ 79.995374][ T5388] __arm64_sys_openat+0x120/0x154 [ 79.996091][ T5388] invoke_syscall+0x98/0x2b8 [ 79.996708][ T5388] el0_svc_common+0x138/0x258 [ 79.997417][ T5388] do_el0_svc+0x58/0x14c [ 79.997979][ T5388] el0_svc+0x78/0x1e0 [ 79.998547][ T5388] el0t_64_sync_handler+0xcc/0xe4 [ 79.999387][ T5388] el0t_64_sync+0x1a0/0x1a4 [ 80.002353][ T5388] ------------[ cut here ]------------ [ 80.003227][ T5388] WARNING: CPU: 0 PID: 5388 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 80.004428][ T5388] Modules linked in: [ 80.004961][ T5388] CPU: 0 PID: 5388 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 80.006173][ T5388] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.007569][ T5388] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.008764][ T5388] pc : btrfs_add_link+0x6e8/0xa68 [ 80.009474][ T5388] lr : btrfs_add_link+0x6e8/0xa68 [ 80.010221][ T5388] sp : ffff8000214f7580 [ 80.010743][ T5388] x29: ffff8000214f7680 x28: ffff0000dd2d7840 x27: 0000000000000108 [ 80.011802][ T5388] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 80.012933][ T5388] x23: 0000000000000014 x22: 1fffe0001ba5af13 x21: ffff70000429eeb8 [ 80.014018][ T5388] x20: 00000000fffffff4 x19: ffff0000dd2d7898 x18: 0000000000000001 [ 80.015370][ T5388] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 80.016671][ T5388] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 80.017854][ T5388] x11: 0000000000000000 x10: 0000000000000000 x9 : 58407de64f50e000 [ 80.019079][ T5388] x8 : 58407de64f50e000 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.020291][ T5388] x5 : ffff8000214f6e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 80.021470][ T5388] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.022657][ T5388] Call trace: [ 80.023105][ T5388] btrfs_add_link+0x6e8/0xa68 [ 80.023832][ T5388] btrfs_create+0x45c/0x508 [ 80.024522][ T5388] path_openat+0x1144/0x26e4 [ 80.025192][ T5388] do_filp_open+0x164/0x330 [ 80.025909][ T5388] do_sys_openat2+0x128/0x3d8 [ 80.026610][ T5388] __arm64_sys_openat+0x120/0x154 [ 80.027300][ T5388] invoke_syscall+0x98/0x2b8 [ 80.027987][ T5388] el0_svc_common+0x138/0x258 [ 80.028698][ T5388] do_el0_svc+0x58/0x14c [ 80.029320][ T5388] el0_svc+0x78/0x1e0 [ 80.029909][ T5388] el0t_64_sync_handler+0xcc/0xe4 [ 80.030629][ T5388] el0t_64_sync+0x1a0/0x1a4 [ 80.031257][ T5388] irq event stamp: 82662 [ 80.031874][ T5388] hardirqs last enabled at (82661): [] __up_console_sem+0xb4/0x100 [ 80.033153][ T5388] hardirqs last disabled at (82662): [] el1_dbg+0x24/0x80 [ 80.034389][ T5388] softirqs last enabled at (82642): [] handle_softirqs+0xa4c/0xbf0 [ 80.035768][ T5388] softirqs last disabled at (82595): [] __irq_exit_rcu+0x240/0x440 [ 80.037149][ T5388] ---[ end trace a7888953c9d801da ]--- [ 80.040146][ T5388] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 80.041555][ T5388] btrfs_printk: 152 callbacks suppressed [ 80.041561][ T5388] BTRFS info (device loop0): forced readonly [ 80.179676][ T5410] loop0: detected capacity change from 0 to 32768 [ 80.225601][ T5410] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.31 (5410) [ 80.266087][ T5410] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 80.267392][ T5410] BTRFS info (device loop0): setting nodatacow, compression disabled [ 80.268886][ T5410] BTRFS info (device loop0): setting datacow [ 80.269837][ T5410] BTRFS info (device loop0): doing ref verification [ 80.270885][ T5410] BTRFS info (device loop0): force clearing of disk cache [ 80.272034][ T5410] BTRFS info (device loop0): turning off barriers [ 80.273083][ T5410] BTRFS info (device loop0): use zlib compression, level 3 [ 80.274698][ T5410] BTRFS info (device loop0): using free space tree [ 80.275640][ T5410] BTRFS info (device loop0): has skinny extents [ 80.283785][ T5410] BTRFS info (device loop0): clearing free space tree [ 80.285088][ T5410] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 80.286471][ T5410] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 80.291813][ T5410] BTRFS info (device loop0): creating free space tree [ 80.293213][ T5410] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 80.294958][ T5410] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 80.299727][ T5410] FAULT_INJECTION: forcing a failure. [ 80.299727][ T5410] name failslab, interval 1, probability 0, space 0, times 0 [ 80.301681][ T5410] CPU: 0 PID: 5410 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 80.302860][ T5410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.304355][ T5410] Call trace: [ 80.304803][ T5410] dump_backtrace+0x0/0x43c [ 80.305415][ T5410] show_stack+0x2c/0x3c [ 80.306059][ T5410] __dump_stack+0x30/0x40 [ 80.306642][ T5410] dump_stack_lvl+0xf8/0x160 [ 80.307311][ T5410] dump_stack+0x1c/0x5c [ 80.307887][ T5410] should_fail+0x3c0/0x51c [ 80.308581][ T5410] __should_failslab+0xbc/0x10c [ 80.309306][ T5410] should_failslab+0x10/0x28 [ 80.309997][ T5410] slab_pre_alloc_hook+0x64/0xec [ 80.310718][ T5410] kmem_cache_alloc+0x94/0x3e4 [ 80.311359][ T5410] btrfs_alloc_path+0x5c/0x68 [ 80.312064][ T5410] btrfs_insert_dir_item+0x16c/0x3b8 [ 80.312806][ T5410] btrfs_add_link+0x294/0xa68 [ 80.313466][ T5410] btrfs_create+0x45c/0x508 [ 80.314130][ T5410] path_openat+0x1144/0x26e4 [ 80.314801][ T5410] do_filp_open+0x164/0x330 [ 80.315435][ T5410] do_sys_openat2+0x128/0x3d8 [ 80.316129][ T5410] __arm64_sys_openat+0x120/0x154 [ 80.316841][ T5410] invoke_syscall+0x98/0x2b8 [ 80.317470][ T5410] el0_svc_common+0x138/0x258 [ 80.318135][ T5410] do_el0_svc+0x58/0x14c [ 80.318770][ T5410] el0_svc+0x78/0x1e0 [ 80.319322][ T5410] el0t_64_sync_handler+0xcc/0xe4 [ 80.320070][ T5410] el0t_64_sync+0x1a0/0x1a4 [ 80.322115][ T5410] ------------[ cut here ]------------ [ 80.323083][ T5410] WARNING: CPU: 0 PID: 5410 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 80.324338][ T5410] Modules linked in: [ 80.324883][ T5410] CPU: 0 PID: 5410 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 80.326146][ T5410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.327495][ T5410] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.328559][ T5410] pc : btrfs_add_link+0x6e8/0xa68 [ 80.329256][ T5410] lr : btrfs_add_link+0x6e8/0xa68 [ 80.329994][ T5410] sp : ffff8000215c7580 [ 80.330569][ T5410] x29: ffff8000215c7680 x28: ffff0000dd2d7b00 x27: 0000000000000108 [ 80.331683][ T5410] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 80.332760][ T5410] x23: 0000000000000014 x22: 1fffe0001ba5af6b x21: ffff7000042b8eb8 [ 80.333941][ T5410] x20: 00000000fffffff4 x19: ffff0000dd2d7b58 x18: 0000000000000001 [ 80.335217][ T5410] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 80.336372][ T5410] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 80.337516][ T5410] x11: 0000000000000000 x10: 0000000000000000 x9 : 2b2b7c2259958800 [ 80.338669][ T5410] x8 : 2b2b7c2259958800 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.339757][ T5410] x5 : ffff8000215c6e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 80.340940][ T5410] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.342072][ T5410] Call trace: [ 80.342534][ T5410] btrfs_add_link+0x6e8/0xa68 [ 80.343192][ T5410] btrfs_create+0x45c/0x508 [ 80.343859][ T5410] path_openat+0x1144/0x26e4 [ 80.344503][ T5410] do_filp_open+0x164/0x330 [ 80.345190][ T5410] do_sys_openat2+0x128/0x3d8 [ 80.345865][ T5410] __arm64_sys_openat+0x120/0x154 [ 80.346616][ T5410] invoke_syscall+0x98/0x2b8 [ 80.347263][ T5410] el0_svc_common+0x138/0x258 [ 80.347907][ T5410] do_el0_svc+0x58/0x14c [ 80.348492][ T5410] el0_svc+0x78/0x1e0 [ 80.349026][ T5410] el0t_64_sync_handler+0xcc/0xe4 [ 80.349743][ T5410] el0t_64_sync+0x1a0/0x1a4 [ 80.350367][ T5410] irq event stamp: 82420 [ 80.350935][ T5410] hardirqs last enabled at (82419): [] __up_console_sem+0xb4/0x100 [ 80.352302][ T5410] hardirqs last disabled at (82420): [] el1_dbg+0x24/0x80 [ 80.353461][ T5410] softirqs last enabled at (82400): [] handle_softirqs+0xa4c/0xbf0 [ 80.354777][ T5410] softirqs last disabled at (82387): [] __irq_exit_rcu+0x240/0x440 [ 80.356069][ T5410] ---[ end trace a7888953c9d801db ]--- [ 80.359555][ T5410] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 80.360941][ T5410] BTRFS info (device loop0): forced readonly [ 80.595462][ T5432] loop0: detected capacity change from 0 to 32768 [ 80.648272][ T5432] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.32 (5432) [ 80.652623][ T5432] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 80.653854][ T5432] BTRFS info (device loop0): setting nodatacow, compression disabled [ 80.656586][ T5432] BTRFS info (device loop0): setting datacow [ 80.657636][ T5432] BTRFS info (device loop0): doing ref verification [ 80.658721][ T5432] BTRFS info (device loop0): force clearing of disk cache [ 80.659947][ T5432] BTRFS info (device loop0): turning off barriers [ 80.660982][ T5432] BTRFS info (device loop0): use zlib compression, level 3 [ 80.662114][ T5432] BTRFS info (device loop0): using free space tree [ 80.663211][ T5432] BTRFS info (device loop0): has skinny extents [ 80.681101][ T5432] BTRFS info (device loop0): clearing free space tree [ 80.682115][ T5432] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 80.683565][ T5432] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 80.687318][ T5432] BTRFS info (device loop0): creating free space tree [ 80.688731][ T5432] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 80.690243][ T5432] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 80.696520][ T5432] FAULT_INJECTION: forcing a failure. [ 80.696520][ T5432] name failslab, interval 1, probability 0, space 0, times 0 [ 80.698490][ T5432] CPU: 0 PID: 5432 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 80.699761][ T5432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.701269][ T5432] Call trace: [ 80.701772][ T5432] dump_backtrace+0x0/0x43c [ 80.702500][ T5432] show_stack+0x2c/0x3c [ 80.703082][ T5432] __dump_stack+0x30/0x40 [ 80.703715][ T5432] dump_stack_lvl+0xf8/0x160 [ 80.704406][ T5432] dump_stack+0x1c/0x5c [ 80.705059][ T5432] should_fail+0x3c0/0x51c [ 80.705697][ T5432] __should_failslab+0xbc/0x10c [ 80.706380][ T5432] should_failslab+0x10/0x28 [ 80.707087][ T5432] slab_pre_alloc_hook+0x64/0xec [ 80.707841][ T5432] kmem_cache_alloc+0x94/0x3e4 [ 80.708507][ T5432] security_inode_alloc+0x38/0x11c [ 80.709268][ T5432] inode_init_always+0x670/0xa84 [ 80.709921][ T5432] new_inode_pseudo+0x7c/0x1fc [ 80.710597][ T5432] new_inode+0x38/0x174 [ 80.711119][ T5432] btrfs_new_inode+0x148/0x1538 [ 80.711793][ T5432] btrfs_create+0x248/0x508 [ 80.712436][ T5432] path_openat+0x1144/0x26e4 [ 80.713068][ T5432] do_filp_open+0x164/0x330 [ 80.713673][ T5432] do_sys_openat2+0x128/0x3d8 [ 80.714372][ T5432] __arm64_sys_openat+0x120/0x154 [ 80.715064][ T5432] invoke_syscall+0x98/0x2b8 [ 80.715732][ T5432] el0_svc_common+0x138/0x258 [ 80.716405][ T5432] do_el0_svc+0x58/0x14c [ 80.717038][ T5432] el0_svc+0x78/0x1e0 [ 80.717611][ T5432] el0t_64_sync_handler+0xcc/0xe4 [ 80.718343][ T5432] el0t_64_sync+0x1a0/0x1a4 [ 80.862402][ T5454] loop0: detected capacity change from 0 to 32768 [ 80.895693][ T5454] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.33 (5454) [ 80.946623][ T5454] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 80.947866][ T5454] BTRFS info (device loop0): setting nodatacow, compression disabled [ 80.949092][ T5454] BTRFS info (device loop0): setting datacow [ 80.949891][ T5454] BTRFS info (device loop0): doing ref verification [ 80.950857][ T5454] BTRFS info (device loop0): force clearing of disk cache [ 80.951864][ T5454] BTRFS info (device loop0): turning off barriers [ 80.952823][ T5454] BTRFS info (device loop0): use zlib compression, level 3 [ 80.953801][ T5454] BTRFS info (device loop0): using free space tree [ 80.964586][ T5454] BTRFS info (device loop0): has skinny extents [ 80.973383][ T5454] BTRFS info (device loop0): clearing free space tree [ 80.975402][ T5454] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 80.976842][ T5454] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 80.980569][ T5454] BTRFS info (device loop0): creating free space tree [ 80.981962][ T5454] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 80.983524][ T5454] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 80.989397][ T5454] FAULT_INJECTION: forcing a failure. [ 80.989397][ T5454] name failslab, interval 1, probability 0, space 0, times 0 [ 80.991428][ T5454] CPU: 1 PID: 5454 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 80.992746][ T5454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.994276][ T5454] Call trace: [ 80.994784][ T5454] dump_backtrace+0x0/0x43c [ 80.995469][ T5454] show_stack+0x2c/0x3c [ 80.996088][ T5454] __dump_stack+0x30/0x40 [ 80.996775][ T5454] dump_stack_lvl+0xf8/0x160 [ 80.997511][ T5454] dump_stack+0x1c/0x5c [ 80.998127][ T5454] should_fail+0x3c0/0x51c [ 80.998754][ T5454] __should_failslab+0xbc/0x10c [ 80.999473][ T5454] should_failslab+0x10/0x28 [ 81.000174][ T5454] slab_pre_alloc_hook+0x64/0xec [ 81.000890][ T5454] kmem_cache_alloc+0x94/0x3e4 [ 81.001607][ T5454] btrfs_alloc_path+0x5c/0x68 [ 81.002320][ T5454] btrfs_insert_dir_item+0x16c/0x3b8 [ 81.003125][ T5454] btrfs_add_link+0x294/0xa68 [ 81.003827][ T5454] btrfs_create+0x45c/0x508 [ 81.004500][ T5454] path_openat+0x1144/0x26e4 [ 81.005169][ T5454] do_filp_open+0x164/0x330 [ 81.005795][ T5454] do_sys_openat2+0x128/0x3d8 [ 81.006737][ T5454] __arm64_sys_openat+0x120/0x154 [ 81.007476][ T5454] invoke_syscall+0x98/0x2b8 [ 81.008133][ T5454] el0_svc_common+0x138/0x258 [ 81.008824][ T5454] do_el0_svc+0x58/0x14c [ 81.009444][ T5454] el0_svc+0x78/0x1e0 [ 81.010050][ T5454] el0t_64_sync_handler+0xcc/0xe4 [ 81.010763][ T5454] el0t_64_sync+0x1a0/0x1a4 [ 81.012255][ T5454] ------------[ cut here ]------------ [ 81.013552][ T5454] WARNING: CPU: 1 PID: 5454 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 81.014947][ T5454] Modules linked in: [ 81.015526][ T5454] CPU: 1 PID: 5454 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 81.016808][ T5454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.018266][ T5454] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.019296][ T5454] pc : btrfs_add_link+0x6e8/0xa68 [ 81.020045][ T5454] lr : btrfs_add_link+0x6e8/0xa68 [ 81.020801][ T5454] sp : ffff8000215d7580 [ 81.021379][ T5454] x29: ffff8000215d7680 x28: ffff0000d289bb00 x27: 0000000000000108 [ 81.022536][ T5454] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 81.023740][ T5454] x23: 0000000000000014 x22: 1fffe0001a51376b x21: ffff7000042baeb8 [ 81.024855][ T5454] x20: 00000000fffffff4 x19: ffff0000d289bb58 x18: 0000000000000001 [ 81.026013][ T5454] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 81.027170][ T5454] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.028382][ T5454] x11: 0000000000000000 x10: 0000000000000000 x9 : 8812c28f99b60400 [ 81.029510][ T5454] x8 : 8812c28f99b60400 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.030757][ T5454] x5 : ffff8000215d6e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 81.031945][ T5454] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.033122][ T5454] Call trace: [ 81.033599][ T5454] btrfs_add_link+0x6e8/0xa68 [ 81.034286][ T5454] btrfs_create+0x45c/0x508 [ 81.034959][ T5454] path_openat+0x1144/0x26e4 [ 81.035604][ T5454] do_filp_open+0x164/0x330 [ 81.036240][ T5454] do_sys_openat2+0x128/0x3d8 [ 81.037102][ T5454] __arm64_sys_openat+0x120/0x154 [ 81.037909][ T5454] invoke_syscall+0x98/0x2b8 [ 81.038589][ T5454] el0_svc_common+0x138/0x258 [ 81.039297][ T5454] do_el0_svc+0x58/0x14c [ 81.039958][ T5454] el0_svc+0x78/0x1e0 [ 81.040542][ T5454] el0t_64_sync_handler+0xcc/0xe4 [ 81.041227][ T5454] el0t_64_sync+0x1a0/0x1a4 [ 81.041942][ T5454] irq event stamp: 81852 [ 81.042513][ T5454] hardirqs last enabled at (81851): [] __up_console_sem+0xb4/0x100 [ 81.043888][ T5454] hardirqs last disabled at (81852): [] el1_dbg+0x24/0x80 [ 81.045102][ T5454] softirqs last enabled at (81840): [] handle_softirqs+0xa4c/0xbf0 [ 81.046451][ T5454] softirqs last disabled at (81735): [] __irq_exit_rcu+0x240/0x440 [ 81.047837][ T5454] ---[ end trace a7888953c9d801dc ]--- [ 81.049786][ T5454] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 81.051140][ T5454] BTRFS info (device loop0): forced readonly [ 81.094054][ T4896] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 10 /dev/loop0 scanned by udevd (4896) [ 81.205486][ T5476] loop0: detected capacity change from 0 to 32768 [ 81.335382][ T5476] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 81.336708][ T5476] BTRFS info (device loop0): setting nodatacow, compression disabled [ 81.337884][ T5476] BTRFS info (device loop0): setting datacow [ 81.338737][ T5476] BTRFS info (device loop0): doing ref verification [ 81.339694][ T5476] BTRFS info (device loop0): force clearing of disk cache [ 81.340795][ T5476] BTRFS info (device loop0): turning off barriers [ 81.341869][ T5476] BTRFS info (device loop0): use zlib compression, level 3 [ 81.342868][ T5476] BTRFS info (device loop0): using free space tree [ 81.343805][ T5476] BTRFS info (device loop0): has skinny extents [ 81.354836][ T5476] BTRFS info (device loop0): clearing free space tree [ 81.355966][ T5476] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 81.357546][ T5476] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 81.360955][ T5476] BTRFS info (device loop0): creating free space tree [ 81.362357][ T5476] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 81.363781][ T5476] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 81.368751][ T5476] FAULT_INJECTION: forcing a failure. [ 81.368751][ T5476] name failslab, interval 1, probability 0, space 0, times 0 [ 81.370711][ T5476] CPU: 1 PID: 5476 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 81.372038][ T5476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.373623][ T5476] Call trace: [ 81.374159][ T5476] dump_backtrace+0x0/0x43c [ 81.374878][ T5476] show_stack+0x2c/0x3c [ 81.375575][ T5476] __dump_stack+0x30/0x40 [ 81.376269][ T5476] dump_stack_lvl+0xf8/0x160 [ 81.376965][ T5476] dump_stack+0x1c/0x5c [ 81.377605][ T5476] should_fail+0x3c0/0x51c [ 81.378271][ T5476] __should_failslab+0xbc/0x10c [ 81.379020][ T5476] should_failslab+0x10/0x28 [ 81.379713][ T5476] slab_pre_alloc_hook+0x64/0xec [ 81.380465][ T5476] kmem_cache_alloc+0x94/0x3e4 [ 81.381286][ T5476] btrfs_alloc_path+0x5c/0x68 [ 81.382040][ T5476] btrfs_insert_dir_item+0x16c/0x3b8 [ 81.382785][ T5476] btrfs_add_link+0x294/0xa68 [ 81.383534][ T5476] btrfs_create+0x45c/0x508 [ 81.384255][ T5476] path_openat+0x1144/0x26e4 [ 81.384894][ T5476] do_filp_open+0x164/0x330 [ 81.385609][ T5476] do_sys_openat2+0x128/0x3d8 [ 81.386298][ T5476] __arm64_sys_openat+0x120/0x154 [ 81.387055][ T5476] invoke_syscall+0x98/0x2b8 [ 81.387722][ T5476] el0_svc_common+0x138/0x258 [ 81.388375][ T5476] do_el0_svc+0x58/0x14c [ 81.388943][ T5476] el0_svc+0x78/0x1e0 [ 81.389515][ T5476] el0t_64_sync_handler+0xcc/0xe4 [ 81.390272][ T5476] el0t_64_sync+0x1a0/0x1a4 [ 81.391768][ T5476] ------------[ cut here ]------------ [ 81.392747][ T5476] WARNING: CPU: 1 PID: 5476 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 81.394176][ T5476] Modules linked in: [ 81.394800][ T5476] CPU: 1 PID: 5476 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 81.396186][ T5476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.397758][ T5476] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.399085][ T5476] pc : btrfs_add_link+0x6e8/0xa68 [ 81.399862][ T5476] lr : btrfs_add_link+0x6e8/0xa68 [ 81.400632][ T5476] sp : ffff800021947580 [ 81.401267][ T5476] x29: ffff800021947680 x28: ffff0000d289bdc0 x27: 0000000000000108 [ 81.402461][ T5476] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 81.403665][ T5476] x23: 0000000000000014 x22: 1fffe0001a5137c3 x21: ffff700004328eb8 [ 81.404906][ T5476] x20: 00000000fffffff4 x19: ffff0000d289be18 x18: 0000000000000001 [ 81.406145][ T5476] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 81.407373][ T5476] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.408673][ T5476] x11: 0000000000000000 x10: 0000000000000000 x9 : 49618570e36a4700 [ 81.409926][ T5476] x8 : 49618570e36a4700 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.411215][ T5476] x5 : ffff800021946e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 81.412449][ T5476] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.413627][ T5476] Call trace: [ 81.414173][ T5476] btrfs_add_link+0x6e8/0xa68 [ 81.414873][ T5476] btrfs_create+0x45c/0x508 [ 81.415587][ T5476] path_openat+0x1144/0x26e4 [ 81.416275][ T5476] do_filp_open+0x164/0x330 [ 81.416969][ T5476] do_sys_openat2+0x128/0x3d8 [ 81.417682][ T5476] __arm64_sys_openat+0x120/0x154 [ 81.418400][ T5476] invoke_syscall+0x98/0x2b8 [ 81.419056][ T5476] el0_svc_common+0x138/0x258 [ 81.419726][ T5476] do_el0_svc+0x58/0x14c [ 81.420329][ T5476] el0_svc+0x78/0x1e0 [ 81.420905][ T5476] el0t_64_sync_handler+0xcc/0xe4 [ 81.421664][ T5476] el0t_64_sync+0x1a0/0x1a4 [ 81.422367][ T5476] irq event stamp: 81548 [ 81.423013][ T5476] hardirqs last enabled at (81547): [] __up_console_sem+0xb4/0x100 [ 81.424417][ T5476] hardirqs last disabled at (81548): [] el1_dbg+0x24/0x80 [ 81.425695][ T5476] softirqs last enabled at (81528): [] handle_softirqs+0xa4c/0xbf0 [ 81.427110][ T5476] softirqs last disabled at (81507): [] __irq_exit_rcu+0x240/0x440 [ 81.428584][ T5476] ---[ end trace a7888953c9d801dd ]--- [ 81.432289][ T5476] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 81.433736][ T5476] BTRFS info (device loop0): forced readonly [ 81.589396][ T5499] loop0: detected capacity change from 0 to 32768 [ 81.598129][ T5499] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.35 (5499) [ 81.602656][ T5499] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 81.604062][ T5499] BTRFS info (device loop0): setting nodatacow, compression disabled [ 81.605768][ T5499] BTRFS info (device loop0): setting datacow [ 81.606675][ T5499] BTRFS info (device loop0): doing ref verification [ 81.607803][ T5499] BTRFS info (device loop0): force clearing of disk cache [ 81.608963][ T5499] BTRFS info (device loop0): turning off barriers [ 81.610006][ T5499] BTRFS info (device loop0): use zlib compression, level 3 [ 81.611087][ T5499] BTRFS info (device loop0): using free space tree [ 81.612077][ T5499] BTRFS info (device loop0): has skinny extents [ 81.625739][ T5499] BTRFS info (device loop0): clearing free space tree [ 81.626895][ T5499] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 81.628307][ T5499] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 81.632366][ T5499] BTRFS info (device loop0): creating free space tree [ 81.633808][ T5499] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 81.636253][ T5499] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 81.641255][ T5499] FAULT_INJECTION: forcing a failure. [ 81.641255][ T5499] name failslab, interval 1, probability 0, space 0, times 0 [ 81.643274][ T5499] CPU: 0 PID: 5499 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 81.644557][ T5499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.646126][ T5499] Call trace: [ 81.646617][ T5499] dump_backtrace+0x0/0x43c [ 81.647319][ T5499] show_stack+0x2c/0x3c [ 81.647882][ T5499] __dump_stack+0x30/0x40 [ 81.648526][ T5499] dump_stack_lvl+0xf8/0x160 [ 81.649225][ T5499] dump_stack+0x1c/0x5c [ 81.649752][ T5499] should_fail+0x3c0/0x51c [ 81.650377][ T5499] __should_failslab+0xbc/0x10c [ 81.651076][ T5499] should_failslab+0x10/0x28 [ 81.651726][ T5499] slab_pre_alloc_hook+0x64/0xec [ 81.652425][ T5499] kmem_cache_alloc+0x94/0x3e4 [ 81.653128][ T5499] btrfs_alloc_path+0x5c/0x68 [ 81.653775][ T5499] btrfs_insert_dir_item+0x16c/0x3b8 [ 81.654518][ T5499] btrfs_add_link+0x294/0xa68 [ 81.655235][ T5499] btrfs_create+0x45c/0x508 [ 81.655873][ T5499] path_openat+0x1144/0x26e4 [ 81.656511][ T5499] do_filp_open+0x164/0x330 [ 81.657172][ T5499] do_sys_openat2+0x128/0x3d8 [ 81.657911][ T5499] __arm64_sys_openat+0x120/0x154 [ 81.658611][ T5499] invoke_syscall+0x98/0x2b8 [ 81.659258][ T5499] el0_svc_common+0x138/0x258 [ 81.659881][ T5499] do_el0_svc+0x58/0x14c [ 81.660518][ T5499] el0_svc+0x78/0x1e0 [ 81.661100][ T5499] el0t_64_sync_handler+0xcc/0xe4 [ 81.661858][ T5499] el0t_64_sync+0x1a0/0x1a4 [ 81.663361][ T5499] ------------[ cut here ]------------ [ 81.664323][ T5499] WARNING: CPU: 0 PID: 5499 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 81.665707][ T5499] Modules linked in: [ 81.666329][ T5499] CPU: 0 PID: 5499 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 81.667571][ T5499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.668994][ T5499] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.670131][ T5499] pc : btrfs_add_link+0x6e8/0xa68 [ 81.670906][ T5499] lr : btrfs_add_link+0x6e8/0xa68 [ 81.671687][ T5499] sp : ffff8000214d7580 [ 81.672252][ T5499] x29: ffff8000214d7680 x28: ffff0000df26dd10 x27: 0000000000000108 [ 81.673428][ T5499] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 81.674557][ T5499] x23: 0000000000000014 x22: 1fffe0001be4dbad x21: ffff70000429aeb8 [ 81.675690][ T5499] x20: 00000000fffffff4 x19: ffff0000df26dd68 x18: 0000000000000001 [ 81.676855][ T5499] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 81.678034][ T5499] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.679166][ T5499] x11: 0000000000000000 x10: 0000000000000000 x9 : 0f62998a72d0de00 [ 81.680328][ T5499] x8 : 0f62998a72d0de00 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.681496][ T5499] x5 : ffff8000214d6e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 81.682636][ T5499] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.683848][ T5499] Call trace: [ 81.684281][ T5499] btrfs_add_link+0x6e8/0xa68 [ 81.684935][ T5499] btrfs_create+0x45c/0x508 [ 81.685590][ T5499] path_openat+0x1144/0x26e4 [ 81.686282][ T5499] do_filp_open+0x164/0x330 [ 81.686974][ T5499] do_sys_openat2+0x128/0x3d8 [ 81.687622][ T5499] __arm64_sys_openat+0x120/0x154 [ 81.688416][ T5499] invoke_syscall+0x98/0x2b8 [ 81.689132][ T5499] el0_svc_common+0x138/0x258 [ 81.689822][ T5499] do_el0_svc+0x58/0x14c [ 81.690430][ T5499] el0_svc+0x78/0x1e0 [ 81.691020][ T5499] el0t_64_sync_handler+0xcc/0xe4 [ 81.691690][ T5499] el0t_64_sync+0x1a0/0x1a4 [ 81.692316][ T5499] irq event stamp: 82922 [ 81.692902][ T5499] hardirqs last enabled at (82921): [] __up_console_sem+0xb4/0x100 [ 81.694273][ T5499] hardirqs last disabled at (82922): [] el1_dbg+0x24/0x80 [ 81.695581][ T5499] softirqs last enabled at (82912): [] handle_softirqs+0xa4c/0xbf0 [ 81.696982][ T5499] softirqs last disabled at (82903): [] __irq_exit_rcu+0x240/0x440 [ 81.698342][ T5499] ---[ end trace a7888953c9d801de ]--- [ 81.699413][ T5499] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 81.700733][ T5499] BTRFS info (device loop0): forced readonly [ 81.847386][ T5521] loop0: detected capacity change from 0 to 32768 [ 81.854373][ T3624] Bluetooth: hci1: command 0x0419 tx timeout [ 81.856349][ T5521] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.36 (5521) [ 81.861497][ T5521] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 81.862897][ T5521] BTRFS info (device loop0): setting nodatacow, compression disabled [ 81.865068][ T5521] BTRFS info (device loop0): setting datacow [ 81.866013][ T5521] BTRFS info (device loop0): doing ref verification [ 81.867107][ T5521] BTRFS info (device loop0): force clearing of disk cache [ 81.868113][ T5521] BTRFS info (device loop0): turning off barriers [ 81.869114][ T5521] BTRFS info (device loop0): use zlib compression, level 3 [ 81.870249][ T5521] BTRFS info (device loop0): using free space tree [ 81.871181][ T5521] BTRFS info (device loop0): has skinny extents [ 81.885782][ T5521] BTRFS info (device loop0): clearing free space tree [ 81.886902][ T5521] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 81.888454][ T5521] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 81.891896][ T5521] BTRFS info (device loop0): creating free space tree [ 81.893203][ T5521] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 81.895473][ T5521] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 81.899853][ T5521] FAULT_INJECTION: forcing a failure. [ 81.899853][ T5521] name failslab, interval 1, probability 0, space 0, times 0 [ 81.901836][ T5521] CPU: 1 PID: 5521 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 81.903125][ T5521] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.904595][ T5521] Call trace: [ 81.905107][ T5521] dump_backtrace+0x0/0x43c [ 81.905768][ T5521] show_stack+0x2c/0x3c [ 81.906321][ T5521] __dump_stack+0x30/0x40 [ 81.906950][ T5521] dump_stack_lvl+0xf8/0x160 [ 81.907615][ T5521] dump_stack+0x1c/0x5c [ 81.908199][ T5521] should_fail+0x3c0/0x51c [ 81.908834][ T5521] __should_failslab+0xbc/0x10c [ 81.909508][ T5521] should_failslab+0x10/0x28 [ 81.910171][ T5521] slab_pre_alloc_hook+0x64/0xec [ 81.910895][ T5521] kmem_cache_alloc+0x94/0x3e4 [ 81.911577][ T5521] btrfs_alloc_path+0x5c/0x68 [ 81.912215][ T5521] btrfs_insert_dir_item+0x16c/0x3b8 [ 81.912943][ T5521] btrfs_add_link+0x294/0xa68 [ 81.913662][ T5521] btrfs_create+0x45c/0x508 [ 81.914328][ T5521] path_openat+0x1144/0x26e4 [ 81.915037][ T5521] do_filp_open+0x164/0x330 [ 81.915725][ T5521] do_sys_openat2+0x128/0x3d8 [ 81.916423][ T5521] __arm64_sys_openat+0x120/0x154 [ 81.917195][ T5521] invoke_syscall+0x98/0x2b8 [ 81.917871][ T5521] el0_svc_common+0x138/0x258 [ 81.918589][ T5521] do_el0_svc+0x58/0x14c [ 81.919244][ T5521] el0_svc+0x78/0x1e0 [ 81.919863][ T5521] el0t_64_sync_handler+0xcc/0xe4 [ 81.920647][ T5521] el0t_64_sync+0x1a0/0x1a4 [ 81.922279][ T5521] ------------[ cut here ]------------ [ 81.923253][ T5521] WARNING: CPU: 1 PID: 5521 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 81.924608][ T5521] Modules linked in: [ 81.925202][ T5521] CPU: 1 PID: 5521 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 81.926489][ T5521] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.928049][ T5521] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.929284][ T5521] pc : btrfs_add_link+0x6e8/0xa68 [ 81.930095][ T5521] lr : btrfs_add_link+0x6e8/0xa68 [ 81.930790][ T5521] sp : ffff800021a77580 [ 81.931342][ T5521] x29: ffff800021a77680 x28: ffff0000d289b210 x27: 0000000000000108 [ 81.932532][ T5521] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 81.933808][ T5521] x23: 0000000000000014 x22: 1fffe0001a51364d x21: ffff70000434eeb8 [ 81.935047][ T5521] x20: 00000000fffffff4 x19: ffff0000d289b268 x18: 0000000000000001 [ 81.936288][ T5521] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 81.937419][ T5521] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.938536][ T5521] x11: 0000000000000000 x10: 0000000000000000 x9 : 73a7057adced7900 [ 81.939754][ T5521] x8 : 73a7057adced7900 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.941049][ T5521] x5 : ffff800021a76e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 81.942295][ T5521] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.943411][ T5521] Call trace: [ 81.943884][ T5521] btrfs_add_link+0x6e8/0xa68 [ 81.944547][ T5521] btrfs_create+0x45c/0x508 [ 81.945267][ T5521] path_openat+0x1144/0x26e4 [ 81.945964][ T5521] do_filp_open+0x164/0x330 [ 81.946603][ T5521] do_sys_openat2+0x128/0x3d8 [ 81.947241][ T5521] __arm64_sys_openat+0x120/0x154 [ 81.947993][ T5521] invoke_syscall+0x98/0x2b8 [ 81.948699][ T5521] el0_svc_common+0x138/0x258 [ 81.949374][ T5521] do_el0_svc+0x58/0x14c [ 81.950009][ T5521] el0_svc+0x78/0x1e0 [ 81.950560][ T5521] el0t_64_sync_handler+0xcc/0xe4 [ 81.951327][ T5521] el0t_64_sync+0x1a0/0x1a4 [ 81.951947][ T5521] irq event stamp: 82320 [ 81.952530][ T5521] hardirqs last enabled at (82319): [] __up_console_sem+0xb4/0x100 [ 81.953990][ T5521] hardirqs last disabled at (82320): [] el1_dbg+0x24/0x80 [ 81.955273][ T5521] softirqs last enabled at (82300): [] handle_softirqs+0xa4c/0xbf0 [ 81.956707][ T5521] softirqs last disabled at (82265): [] __irq_exit_rcu+0x240/0x440 [ 81.958049][ T5521] ---[ end trace a7888953c9d801df ]--- [ 81.959940][ T5521] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 81.961253][ T5521] BTRFS info (device loop0): forced readonly [ 82.152579][ T5543] loop0: detected capacity change from 0 to 32768 [ 82.200755][ T5543] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.37 (5543) [ 82.205869][ T5543] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 82.207142][ T5543] BTRFS info (device loop0): setting nodatacow, compression disabled [ 82.208289][ T5543] BTRFS info (device loop0): setting datacow [ 82.209201][ T5543] BTRFS info (device loop0): doing ref verification [ 82.238157][ T5543] FAULT_INJECTION: forcing a failure. [ 82.238157][ T5543] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 82.240214][ T5543] CPU: 0 PID: 5543 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 82.241522][ T5543] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.243018][ T5543] Call trace: [ 82.243490][ T5543] dump_backtrace+0x0/0x43c [ 82.244192][ T5543] show_stack+0x2c/0x3c [ 82.244783][ T5543] __dump_stack+0x30/0x40 [ 82.245396][ T5543] dump_stack_lvl+0xf8/0x160 [ 82.246047][ T5543] dump_stack+0x1c/0x5c [ 82.246618][ T5543] should_fail+0x3c0/0x51c [ 82.247258][ T5543] should_fail_alloc_page+0x74/0xa8 [ 82.247946][ T5543] prepare_alloc_pages+0x160/0x460 [ 82.248664][ T5543] __alloc_pages+0x108/0x470 [ 82.249291][ T5543] alloc_pages+0x34c/0x5c0 [ 82.249960][ T5543] new_slab+0xe0/0x55c [ 82.250558][ T5543] ___slab_alloc+0x6c0/0xda8 [ 82.251261][ T5543] __slab_alloc+0x68/0xc0 [ 82.251851][ T5543] kmem_cache_alloc+0x2ac/0x3e4 [ 82.252582][ T5543] btrfs_get_or_create_delayed_node+0x128/0x4c8 [ 82.253519][ T5543] btrfs_delayed_update_inode+0x3c/0x1b7c [ 82.254340][ T5543] btrfs_update_inode+0x210/0x3d4 [ 82.254998][ T5543] btrfs_create+0x360/0x508 [ 82.255646][ T5543] path_openat+0x1144/0x26e4 [ 82.256301][ T5543] do_filp_open+0x164/0x330 [ 82.256920][ T5543] do_sys_openat2+0x128/0x3d8 [ 82.257555][ T5543] __arm64_sys_openat+0x120/0x154 [ 82.258301][ T5543] invoke_syscall+0x98/0x2b8 [ 82.258979][ T5543] el0_svc_common+0x138/0x258 [ 82.259587][ T5543] do_el0_svc+0x58/0x14c [ 82.260197][ T5543] el0_svc+0x78/0x1e0 [ 82.260897][ T5543] el0t_64_sync_handler+0xcc/0xe4 [ 82.261688][ T5543] el0t_64_sync+0x1a0/0x1a4 [ 82.412358][ T5565] loop0: detected capacity change from 0 to 32768 [ 82.420929][ T5565] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.38 (5565) [ 82.436805][ T5565] FAULT_INJECTION: forcing a failure. [ 82.436805][ T5565] name failslab, interval 1, probability 0, space 0, times 0 [ 82.438727][ T5565] CPU: 0 PID: 5565 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 82.439950][ T5565] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.441389][ T5565] Call trace: [ 82.441861][ T5565] dump_backtrace+0x0/0x43c [ 82.442515][ T5565] show_stack+0x2c/0x3c [ 82.443092][ T5565] __dump_stack+0x30/0x40 [ 82.443702][ T5565] dump_stack_lvl+0xf8/0x160 [ 82.444324][ T5565] dump_stack+0x1c/0x5c [ 82.444933][ T5565] should_fail+0x3c0/0x51c [ 82.445542][ T5565] __should_failslab+0xbc/0x10c [ 82.446223][ T5565] should_failslab+0x10/0x28 [ 82.446836][ T5565] slab_pre_alloc_hook+0x64/0xec [ 82.447504][ T5565] kmem_cache_alloc+0x94/0x3e4 [ 82.448215][ T5565] security_inode_alloc+0x38/0x11c [ 82.448913][ T5565] inode_init_always+0x670/0xa84 [ 82.449641][ T5565] new_inode_pseudo+0x7c/0x1fc [ 82.450344][ T5565] new_inode+0x38/0x174 [ 82.450978][ T5565] btrfs_new_inode+0x148/0x1538 [ 82.451715][ T5565] btrfs_create+0x248/0x508 [ 82.452365][ T5565] path_openat+0x1144/0x26e4 [ 82.452979][ T5565] do_filp_open+0x164/0x330 [ 82.453631][ T5565] do_sys_openat2+0x128/0x3d8 [ 82.454305][ T5565] __arm64_sys_openat+0x120/0x154 [ 82.454985][ T5565] invoke_syscall+0x98/0x2b8 [ 82.455657][ T5565] el0_svc_common+0x138/0x258 [ 82.456311][ T5565] do_el0_svc+0x58/0x14c [ 82.456937][ T5565] el0_svc+0x78/0x1e0 [ 82.457530][ T5565] el0t_64_sync_handler+0xcc/0xe4 [ 82.458239][ T5565] el0t_64_sync+0x1a0/0x1a4 [ 82.529094][ T4896] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 12 /dev/loop0 scanned by udevd (4896) [ 82.628950][ T5586] loop0: detected capacity change from 0 to 32768 [ 82.703134][ T5586] FAULT_INJECTION: forcing a failure. [ 82.703134][ T5586] name failslab, interval 1, probability 0, space 0, times 0 [ 82.706103][ T5586] CPU: 0 PID: 5586 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 82.707340][ T5586] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.708752][ T5586] Call trace: [ 82.709224][ T5586] dump_backtrace+0x0/0x43c [ 82.709854][ T5586] show_stack+0x2c/0x3c [ 82.710447][ T5586] __dump_stack+0x30/0x40 [ 82.711101][ T5586] dump_stack_lvl+0xf8/0x160 [ 82.711742][ T5586] dump_stack+0x1c/0x5c [ 82.712344][ T5586] should_fail+0x3c0/0x51c [ 82.712985][ T5586] __should_failslab+0xbc/0x10c [ 82.713663][ T5586] should_failslab+0x10/0x28 [ 82.714338][ T5586] slab_pre_alloc_hook+0x64/0xec [ 82.715010][ T5586] kmem_cache_alloc+0x94/0x3e4 [ 82.715695][ T5586] security_inode_alloc+0x38/0x11c [ 82.716411][ T5586] inode_init_always+0x670/0xa84 [ 82.717133][ T5586] new_inode_pseudo+0x7c/0x1fc [ 82.717831][ T5586] new_inode+0x38/0x174 [ 82.718445][ T5586] btrfs_new_inode+0x148/0x1538 [ 82.719175][ T5586] btrfs_create+0x248/0x508 [ 82.719783][ T5586] path_openat+0x1144/0x26e4 [ 82.720423][ T5586] do_filp_open+0x164/0x330 [ 82.721079][ T5586] do_sys_openat2+0x128/0x3d8 [ 82.721787][ T5586] __arm64_sys_openat+0x120/0x154 [ 82.722481][ T5586] invoke_syscall+0x98/0x2b8 [ 82.723118][ T5586] el0_svc_common+0x138/0x258 [ 82.723818][ T5586] do_el0_svc+0x58/0x14c [ 82.724428][ T5586] el0_svc+0x78/0x1e0 [ 82.725029][ T5586] el0t_64_sync_handler+0xcc/0xe4 [ 82.725768][ T5586] el0t_64_sync+0x1a0/0x1a4 [ 82.925356][ T5608] loop0: detected capacity change from 0 to 32768 [ 82.975547][ T5608] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.40 (5608) [ 83.003350][ T5608] FAULT_INJECTION: forcing a failure. [ 83.003350][ T5608] name failslab, interval 1, probability 0, space 0, times 0 [ 83.005473][ T5608] CPU: 0 PID: 5608 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 83.006719][ T5608] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.008194][ T5608] Call trace: [ 83.008622][ T5608] dump_backtrace+0x0/0x43c [ 83.009269][ T5608] show_stack+0x2c/0x3c [ 83.009818][ T5608] __dump_stack+0x30/0x40 [ 83.010464][ T5608] dump_stack_lvl+0xf8/0x160 [ 83.011137][ T5608] dump_stack+0x1c/0x5c [ 83.011761][ T5608] should_fail+0x3c0/0x51c [ 83.012409][ T5608] __should_failslab+0xbc/0x10c [ 83.013037][ T5608] should_failslab+0x10/0x28 [ 83.013671][ T5608] slab_pre_alloc_hook+0x64/0xec [ 83.014411][ T5608] kmem_cache_alloc+0x94/0x3e4 [ 83.015113][ T5608] btrfs_alloc_path+0x5c/0x68 [ 83.015794][ T5608] btrfs_insert_dir_item+0x16c/0x3b8 [ 83.016495][ T5608] btrfs_add_link+0x294/0xa68 [ 83.017165][ T5608] btrfs_create+0x45c/0x508 [ 83.017836][ T5608] path_openat+0x1144/0x26e4 [ 83.018469][ T5608] do_filp_open+0x164/0x330 [ 83.019096][ T5608] do_sys_openat2+0x128/0x3d8 [ 83.019754][ T5608] __arm64_sys_openat+0x120/0x154 [ 83.020476][ T5608] invoke_syscall+0x98/0x2b8 [ 83.021130][ T5608] el0_svc_common+0x138/0x258 [ 83.021834][ T5608] do_el0_svc+0x58/0x14c [ 83.022459][ T5608] el0_svc+0x78/0x1e0 [ 83.023077][ T5608] el0t_64_sync_handler+0xcc/0xe4 [ 83.023803][ T5608] el0t_64_sync+0x1a0/0x1a4 [ 83.026451][ T5608] ------------[ cut here ]------------ [ 83.027376][ T5608] WARNING: CPU: 0 PID: 5608 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 83.028751][ T5608] Modules linked in: [ 83.029328][ T5608] CPU: 0 PID: 5608 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 83.030542][ T5608] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.031970][ T5608] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.033103][ T5608] pc : btrfs_add_link+0x6e8/0xa68 [ 83.033769][ T5608] lr : btrfs_add_link+0x6e8/0xa68 [ 83.034446][ T5608] sp : ffff800021ec7580 [ 83.035079][ T5608] x29: ffff800021ec7680 x28: ffff0000dd2d7370 x27: 0000000000000108 [ 83.036296][ T5608] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 83.037505][ T5608] x23: 0000000000000014 x22: 1fffe0001ba5ae79 x21: ffff7000043d8eb8 [ 83.038686][ T5608] x20: 00000000fffffff4 x19: ffff0000dd2d73c8 x18: 0000000000000001 [ 83.039904][ T5608] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 83.041012][ T5608] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 83.042148][ T5608] x11: 0000000000000000 x10: 0000000000000000 x9 : d4c0bfaceb587d00 [ 83.043292][ T5608] x8 : d4c0bfaceb587d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.044535][ T5608] x5 : ffff800021ec6e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 83.045680][ T5608] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.046875][ T5608] Call trace: [ 83.047326][ T5608] btrfs_add_link+0x6e8/0xa68 [ 83.047974][ T5608] btrfs_create+0x45c/0x508 [ 83.048609][ T5608] path_openat+0x1144/0x26e4 [ 83.049277][ T5608] do_filp_open+0x164/0x330 [ 83.049897][ T5608] do_sys_openat2+0x128/0x3d8 [ 83.050564][ T5608] __arm64_sys_openat+0x120/0x154 [ 83.051257][ T5608] invoke_syscall+0x98/0x2b8 [ 83.051905][ T5608] el0_svc_common+0x138/0x258 [ 83.052548][ T5608] do_el0_svc+0x58/0x14c [ 83.053170][ T5608] el0_svc+0x78/0x1e0 [ 83.053679][ T5608] el0t_64_sync_handler+0xcc/0xe4 [ 83.054391][ T5608] el0t_64_sync+0x1a0/0x1a4 [ 83.055037][ T5608] irq event stamp: 81170 [ 83.055614][ T5608] hardirqs last enabled at (81169): [] __up_console_sem+0xb4/0x100 [ 83.056925][ T5608] hardirqs last disabled at (81170): [] el1_dbg+0x24/0x80 [ 83.058180][ T5608] softirqs last enabled at (81150): [] handle_softirqs+0xa4c/0xbf0 [ 83.059553][ T5608] softirqs last disabled at (81045): [] __irq_exit_rcu+0x240/0x440 [ 83.060955][ T5608] ---[ end trace a7888953c9d801e0 ]--- [ 83.064823][ T5608] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 83.202236][ T5630] loop0: detected capacity change from 0 to 32768 [ 83.235464][ T5630] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.41 (5630) [ 83.385584][ T5630] FAULT_INJECTION: forcing a failure. [ 83.385584][ T5630] name failslab, interval 1, probability 0, space 0, times 0 [ 83.387594][ T5630] CPU: 0 PID: 5630 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 83.388806][ T5630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.390230][ T5630] Call trace: [ 83.390680][ T5630] dump_backtrace+0x0/0x43c [ 83.391361][ T5630] show_stack+0x2c/0x3c [ 83.391938][ T5630] __dump_stack+0x30/0x40 [ 83.392561][ T5630] dump_stack_lvl+0xf8/0x160 [ 83.393133][ T5630] dump_stack+0x1c/0x5c [ 83.393691][ T5630] should_fail+0x3c0/0x51c [ 83.394307][ T5630] __should_failslab+0xbc/0x10c [ 83.395013][ T5630] should_failslab+0x10/0x28 [ 83.395648][ T5630] slab_pre_alloc_hook+0x64/0xec [ 83.396374][ T5630] kmem_cache_alloc+0x94/0x3e4 [ 83.397101][ T5630] btrfs_alloc_path+0x5c/0x68 [ 83.397797][ T5630] btrfs_insert_dir_item+0x16c/0x3b8 [ 83.398526][ T5630] btrfs_add_link+0x294/0xa68 [ 83.399154][ T5630] btrfs_create+0x45c/0x508 [ 83.399849][ T5630] path_openat+0x1144/0x26e4 [ 83.400519][ T5630] do_filp_open+0x164/0x330 [ 83.401149][ T5630] do_sys_openat2+0x128/0x3d8 [ 83.401835][ T5630] __arm64_sys_openat+0x120/0x154 [ 83.402527][ T5630] invoke_syscall+0x98/0x2b8 [ 83.403242][ T5630] el0_svc_common+0x138/0x258 [ 83.403873][ T5630] do_el0_svc+0x58/0x14c [ 83.404525][ T5630] el0_svc+0x78/0x1e0 [ 83.405144][ T5630] el0t_64_sync_handler+0xcc/0xe4 [ 83.405854][ T5630] el0t_64_sync+0x1a0/0x1a4 [ 83.418887][ T5630] ------------[ cut here ]------------ [ 83.429145][ T5630] WARNING: CPU: 0 PID: 5630 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 83.430420][ T5630] Modules linked in: [ 83.430962][ T5630] CPU: 0 PID: 5630 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 83.432200][ T5630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.433849][ T5630] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.435021][ T5630] pc : btrfs_add_link+0x6e8/0xa68 [ 83.435801][ T5630] lr : btrfs_add_link+0x6e8/0xa68 [ 83.436515][ T5630] sp : ffff800021ec7580 [ 83.437124][ T5630] x29: ffff800021ec7680 x28: ffff0000dd2d7210 x27: 0000000000000108 [ 83.438418][ T5630] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 83.439566][ T5630] x23: 0000000000000014 x22: 1fffe0001ba5ae4d x21: ffff7000043d8eb8 [ 83.440711][ T5630] x20: 00000000fffffff4 x19: ffff0000dd2d7268 x18: 0000000000000001 [ 83.441878][ T5630] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 83.443039][ T5630] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 83.444221][ T5630] x11: 0000000000000000 x10: 0000000000000000 x9 : 0d038406c0ce3700 [ 83.445440][ T5630] x8 : 0d038406c0ce3700 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.446649][ T5630] x5 : ffff800021ec6e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 83.447813][ T5630] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.449030][ T5630] Call trace: [ 83.449516][ T5630] btrfs_add_link+0x6e8/0xa68 [ 83.450234][ T5630] btrfs_create+0x45c/0x508 [ 83.450890][ T5630] path_openat+0x1144/0x26e4 [ 83.451565][ T5630] do_filp_open+0x164/0x330 [ 83.452194][ T5630] do_sys_openat2+0x128/0x3d8 [ 83.452851][ T5630] __arm64_sys_openat+0x120/0x154 [ 83.453587][ T5630] invoke_syscall+0x98/0x2b8 [ 83.454236][ T5630] el0_svc_common+0x138/0x258 [ 83.454893][ T5630] do_el0_svc+0x58/0x14c [ 83.455505][ T5630] el0_svc+0x78/0x1e0 [ 83.456035][ T5630] el0t_64_sync_handler+0xcc/0xe4 [ 83.456786][ T5630] el0t_64_sync+0x1a0/0x1a4 [ 83.457455][ T5630] irq event stamp: 82536 [ 83.458065][ T5630] hardirqs last enabled at (82535): [] __up_console_sem+0xb4/0x100 [ 83.459534][ T5630] hardirqs last disabled at (82536): [] el1_dbg+0x24/0x80 [ 83.460785][ T5630] softirqs last enabled at (82512): [] handle_softirqs+0xa4c/0xbf0 [ 83.462133][ T5630] softirqs last disabled at (82495): [] __irq_exit_rcu+0x240/0x440 [ 83.463485][ T5630] ---[ end trace a7888953c9d801e1 ]--- [ 83.494608][ T5630] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 83.710495][ T5652] loop0: detected capacity change from 0 to 32768 [ 83.760407][ T5652] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.42 (5652) [ 83.853194][ T5652] FAULT_INJECTION: forcing a failure. [ 83.853194][ T5652] name failslab, interval 1, probability 0, space 0, times 0 [ 83.856778][ T5652] CPU: 1 PID: 5652 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 83.858028][ T5652] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.859522][ T5652] Call trace: [ 83.860024][ T5652] dump_backtrace+0x0/0x43c [ 83.860716][ T5652] show_stack+0x2c/0x3c [ 83.861313][ T5652] __dump_stack+0x30/0x40 [ 83.861979][ T5652] dump_stack_lvl+0xf8/0x160 [ 83.862661][ T5652] dump_stack+0x1c/0x5c [ 83.863251][ T5652] should_fail+0x3c0/0x51c [ 83.863890][ T5652] __should_failslab+0xbc/0x10c [ 83.864616][ T5652] should_failslab+0x10/0x28 [ 83.865268][ T5652] slab_pre_alloc_hook+0x64/0xec [ 83.866011][ T5652] kmem_cache_alloc+0x94/0x3e4 [ 83.866700][ T5652] btrfs_get_or_create_delayed_node+0x128/0x4c8 [ 83.867572][ T5652] btrfs_delayed_update_inode+0x3c/0x1b7c [ 83.868363][ T5652] btrfs_update_inode+0x210/0x3d4 [ 83.869042][ T5652] btrfs_create+0x360/0x508 [ 83.869677][ T5652] path_openat+0x1144/0x26e4 [ 83.870388][ T5652] do_filp_open+0x164/0x330 [ 83.870983][ T5652] do_sys_openat2+0x128/0x3d8 [ 83.871630][ T5652] __arm64_sys_openat+0x120/0x154 [ 83.872333][ T5652] invoke_syscall+0x98/0x2b8 [ 83.872947][ T5652] el0_svc_common+0x138/0x258 [ 83.873604][ T5652] do_el0_svc+0x58/0x14c [ 83.874171][ T5652] el0_svc+0x78/0x1e0 [ 83.874696][ T5652] el0t_64_sync_handler+0xcc/0xe4 [ 83.875487][ T5652] el0t_64_sync+0x1a0/0x1a4 1970/01/01 00:01:23 executed programs: 30 [ 84.066182][ T5674] loop0: detected capacity change from 0 to 32768 [ 84.116498][ T5674] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.43 (5674) [ 84.134628][ T5674] FAULT_INJECTION: forcing a failure. [ 84.134628][ T5674] name failslab, interval 1, probability 0, space 0, times 0 [ 84.136603][ T5674] CPU: 0 PID: 5674 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 84.137926][ T5674] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.139453][ T5674] Call trace: [ 84.139917][ T5674] dump_backtrace+0x0/0x43c [ 84.140589][ T5674] show_stack+0x2c/0x3c [ 84.141196][ T5674] __dump_stack+0x30/0x40 [ 84.141826][ T5674] dump_stack_lvl+0xf8/0x160 [ 84.142520][ T5674] dump_stack+0x1c/0x5c [ 84.143176][ T5674] should_fail+0x3c0/0x51c [ 84.143895][ T5674] __should_failslab+0xbc/0x10c [ 84.144597][ T5674] should_failslab+0x10/0x28 [ 84.145255][ T5674] slab_pre_alloc_hook+0x64/0xec [ 84.145961][ T5674] kmem_cache_alloc+0x94/0x3e4 [ 84.146604][ T5674] btrfs_get_or_create_delayed_node+0x128/0x4c8 [ 84.147506][ T5674] btrfs_delayed_update_inode+0x3c/0x1b7c [ 84.148355][ T5674] btrfs_update_inode+0x210/0x3d4 [ 84.149077][ T5674] btrfs_create+0x360/0x508 [ 84.149683][ T5674] path_openat+0x1144/0x26e4 [ 84.150322][ T5674] do_filp_open+0x164/0x330 [ 84.150952][ T5674] do_sys_openat2+0x128/0x3d8 [ 84.151606][ T5674] __arm64_sys_openat+0x120/0x154 [ 84.152357][ T5674] invoke_syscall+0x98/0x2b8 [ 84.153040][ T5674] el0_svc_common+0x138/0x258 [ 84.153658][ T5674] do_el0_svc+0x58/0x14c [ 84.154285][ T5674] el0_svc+0x78/0x1e0 [ 84.154860][ T5674] el0t_64_sync_handler+0xcc/0xe4 [ 84.155547][ T5674] el0t_64_sync+0x1a0/0x1a4 [ 84.213472][ T4896] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 12 /dev/loop0 scanned by udevd (4896) [ 84.316184][ T5695] loop0: detected capacity change from 0 to 32768 [ 84.420015][ T5695] FAULT_INJECTION: forcing a failure. [ 84.420015][ T5695] name failslab, interval 1, probability 0, space 0, times 0 [ 84.421946][ T5695] CPU: 0 PID: 5695 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 84.423192][ T5695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.424659][ T5695] Call trace: [ 84.425148][ T5695] dump_backtrace+0x0/0x43c [ 84.425864][ T5695] show_stack+0x2c/0x3c [ 84.426437][ T5695] __dump_stack+0x30/0x40 [ 84.427088][ T5695] dump_stack_lvl+0xf8/0x160 [ 84.427815][ T5695] dump_stack+0x1c/0x5c [ 84.428475][ T5695] should_fail+0x3c0/0x51c [ 84.429174][ T5695] __should_failslab+0xbc/0x10c [ 84.429964][ T5695] should_failslab+0x10/0x28 [ 84.430679][ T5695] slab_pre_alloc_hook+0x64/0xec [ 84.431448][ T5695] kmem_cache_alloc+0x94/0x3e4 [ 84.432224][ T5695] btrfs_alloc_path+0x5c/0x68 [ 84.432939][ T5695] btrfs_insert_dir_item+0x16c/0x3b8 [ 84.433673][ T5695] btrfs_add_link+0x294/0xa68 [ 84.434420][ T5695] btrfs_create+0x45c/0x508 [ 84.435075][ T5695] path_openat+0x1144/0x26e4 [ 84.435767][ T5695] do_filp_open+0x164/0x330 [ 84.436400][ T5695] do_sys_openat2+0x128/0x3d8 [ 84.437085][ T5695] __arm64_sys_openat+0x120/0x154 [ 84.437841][ T5695] invoke_syscall+0x98/0x2b8 [ 84.438537][ T5695] el0_svc_common+0x138/0x258 [ 84.439236][ T5695] do_el0_svc+0x58/0x14c [ 84.439896][ T5695] el0_svc+0x78/0x1e0 [ 84.440549][ T5695] el0t_64_sync_handler+0xcc/0xe4 [ 84.441255][ T5695] el0t_64_sync+0x1a0/0x1a4 [ 84.442150][ T5695] ------------[ cut here ]------------ [ 84.443093][ T5695] WARNING: CPU: 0 PID: 5695 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 84.444325][ T5695] Modules linked in: [ 84.444864][ T5695] CPU: 0 PID: 5695 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 84.446171][ T5695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.447574][ T5695] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 84.448738][ T5695] pc : btrfs_add_link+0x6e8/0xa68 [ 84.449517][ T5695] lr : btrfs_add_link+0x6e8/0xa68 [ 84.450253][ T5695] sp : ffff800022237580 [ 84.450886][ T5695] x29: ffff800022237680 x28: ffff0000dd2d7580 x27: 0000000000000108 [ 84.452090][ T5695] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 84.453261][ T5695] x23: 0000000000000014 x22: 1fffe0001ba5aebb x21: ffff700004446eb8 [ 84.454484][ T5695] x20: 00000000fffffff4 x19: ffff0000dd2d75d8 x18: 0000000000000001 [ 84.455631][ T5695] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 84.456857][ T5695] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 84.458013][ T5695] x11: 0000000000000000 x10: 0000000000000000 x9 : 552844a6891c3a00 [ 84.459175][ T5695] x8 : 552844a6891c3a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 84.460382][ T5695] x5 : ffff800022236e78 x4 : ffff8000141ff5a0 x3 : ffff800008302274 [ 84.461536][ T5695] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 84.462708][ T5695] Call trace: [ 84.463167][ T5695] btrfs_add_link+0x6e8/0xa68 [ 84.463833][ T5695] btrfs_create+0x45c/0x508 [ 84.464512][ T5695] path_openat+0x1144/0x26e4 [ 84.465169][ T5695] do_filp_open+0x164/0x330 [ 84.465859][ T5695] do_sys_openat2+0x128/0x3d8 [ 84.466506][ T5695] __arm64_sys_openat+0x120/0x154 [ 84.467314][ T5695] invoke_syscall+0x98/0x2b8 [ 84.467967][ T5695] el0_svc_common+0x138/0x258 [ 84.468619][ T5695] do_el0_svc+0x58/0x14c [ 84.469259][ T5695] el0_svc+0x78/0x1e0 [ 84.469792][ T5695] el0t_64_sync_handler+0xcc/0xe4 [ 84.470508][ T5695] el0t_64_sync+0x1a0/0x1a4 [ 84.471170][ T5695] irq event stamp: 81606 [ 84.471804][ T5695] hardirqs last enabled at (81605): [] __up_console_sem+0xb4/0x100 [ 84.473076][ T5695] hardirqs last disabled at (81606): [] el1_dbg+0x24/0x80 [ 84.474296][ T5695] softirqs last enabled at (81586): [] handle_softirqs+0xa4c/0xbf0 [ 84.475664][ T5695] softirqs last disabled at (81575): [] __irq_exit_rcu+0x240/0x440 [ 84.476986][ T5695] ---[ end trace a7888953c9d801e2 ]--- [ 84.477962][ T5695] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 84.629272][ T5718] loop0: detected capacity change from 0 to 32768 [ 84.637514][ T5718] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.45 (5718) [ 84.659568][ T5718] FAULT_INJECTION: forcing a failure. [ 84.659568][ T5718] name failslab, interval 1, probability 0, space 0, times 0 [ 84.661369][ T5718] CPU: 0 PID: 5718 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 84.662552][ T5718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.664013][ T5718] Call trace: [ 84.664453][ T5718] dump_backtrace+0x0/0x43c [ 84.665127][ T5718] show_stack+0x2c/0x3c [ 84.665741][ T5718] __dump_stack+0x30/0x40 [ 84.666375][ T5718] dump_stack_lvl+0xf8/0x160 [ 84.667031][ T5718] dump_stack+0x1c/0x5c [ 84.667620][ T5718] should_fail+0x3c0/0x51c [ 84.668240][ T5718] __should_failslab+0xbc/0x10c [ 84.668959][ T5718] should_failslab+0x10/0x28 [ 84.669653][ T5718] slab_pre_alloc_hook+0x64/0xec [ 84.670369][ T5718] kmem_cache_alloc+0x94/0x3e4 [ 84.671124][ T5718] btrfs_alloc_path+0x5c/0x68 [ 84.671838][ T5718] btrfs_insert_dir_item+0x16c/0x3b8 [ 84.672647][ T5718] btrfs_add_link+0x294/0xa68 [ 84.673343][ T5718] btrfs_create+0x45c/0x508 [ 84.674059][ T5718] path_openat+0x1144/0x26e4 [ 84.674766][ T5718] do_filp_open+0x164/0x330 [ 84.675400][ T5718] do_sys_openat2+0x128/0x3d8 [ 84.676041][ T5718] __arm64_sys_openat+0x120/0x154 [ 84.676731][ T5718] invoke_syscall+0x98/0x2b8 [ 84.677376][ T5718] el0_svc_common+0x138/0x258 [ 84.678061][ T5718] do_el0_svc+0x58/0x14c [ 84.678705][ T5718] el0_svc+0x78/0x1e0 [ 84.679277][ T5718] el0t_64_sync_handler+0xcc/0xe4 [ 84.679953][ T5718] el0t_64_sync+0x1a0/0x1a4 [ 84.681373][ T5718] ------------[ cut here ]------------ [ 84.682206][ T5718] WARNING: CPU: 0 PID: 5718 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 84.683484][ T5718] Modules linked in: [ 84.684076][ T5718] CPU: 0 PID: 5718 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 84.685320][ T5718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.686896][ T5718] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 84.688012][ T5718] pc : btrfs_add_link+0x6e8/0xa68 [ 84.688710][ T5718] lr : btrfs_add_link+0x6e8/0xa68 [ 84.689460][ T5718] sp : ffff800022c67580 [ 84.690067][ T5718] x29: ffff800022c67680 x28: ffff0000dd2d7e70 x27: 0000000000000108 [ 84.691220][ T5718] x26: 00000000fffffff4 x25: 0000000000000000 x24: dfff800000000000 [ 84.692361][ T5718] x23: 0000000000000014 x22: 1fffe0001ba5afd9 x21: ffff70000458ceb8 [ 84.693574][ T5718] x20: 00000000fffffff4 x19: ffff0000dd2d7ec8 x18: 0000000000000001 [ 84.694758][ T5718] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 84.695947][ T5718] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 84.697092][ T5718] x11: 0000000000000000 x10: 0000000000000000 x9 : 648d272610398700 [ 84.698189][ T5718] x8 : 648d272610398700 x7 : 0000000000000001 x6 : 0000000000000001 [ 84.699320][ T5718] x5 : ffff800022c66e78 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 84.700435][ T5718] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 84.701575][ T5718] Call trace: [ 84.702061][ T5718] btrfs_add_link+0x6e8/0xa68 [ 84.702714][ T5718] btrfs_create+0x45c/0x508 [ 84.703375][ T5718] path_openat+0x1144/0x26e4 [ 84.703975][ T5718] do_filp_open+0x164/0x330 [ 84.704631][ T5718] do_sys_openat2+0x128/0x3d8 [ 84.705336][ T5718] __arm64_sys_openat+0x120/0x154 [ 84.706044][ T5718] invoke_syscall+0x98/0x2b8 [ 84.706717][ T5718] el0_svc_common+0x138/0x258 [ 84.707378][ T5718] do_el0_svc+0x58/0x14c [ 84.708033][ T5718] el0_svc+0x78/0x1e0 [ 84.708584][ T5718] el0t_64_sync_handler+0xcc/0xe4 [ 84.709308][ T5718] el0t_64_sync+0x1a0/0x1a4 [ 84.709927][ T5718] irq event stamp: 81616 [ 84.710509][ T5718] hardirqs last enabled at (81615): [] __up_console_sem+0xb4/0x100 [ 84.711849][ T5718] hardirqs last disabled at (81616): [] el1_dbg+0x24/0x80 [ 84.713055][ T5718] softirqs last enabled at (81596): [] handle_softirqs+0xa4c/0xbf0 [ 84.714482][ T5718] softirqs last disabled at (81411): [] __irq_exit_rcu+0x240/0x440 [ 84.715829][ T5718] ---[ end trace a7888953c9d801e3 ]--- [ 84.716862][ T5718] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 84.857075][ T5740] loop0: detected capacity change from 0 to 32768 [ 84.958979][ T5740] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.46 (5740) [ 84.988661][ T5740] FAULT_INJECTION: forcing a failure. [ 84.988661][ T5740] name failslab, interval 1, probability 0, space 0, times 0 [ 84.990656][ T5740] CPU: 1 PID: 5740 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 84.991980][ T5740] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.993562][ T5740] Call trace: [ 84.994065][ T5740] dump_backtrace+0x0/0x43c [ 84.994750][ T5740] show_stack+0x2c/0x3c [ 84.995366][ T5740] __dump_stack+0x30/0x40 [ 84.995954][ T5740] dump_stack_lvl+0xf8/0x160 [ 84.996627][ T5740] dump_stack+0x1c/0x5c [ 84.997221][ T5740] should_fail+0x3c0/0x51c [ 84.997869][ T5740] __should_failslab+0xbc/0x10c [ 84.998543][ T5740] should_failslab+0x10/0x28 [ 84.999244][ T5740] slab_pre_alloc_hook+0x64/0xec [ 85.000014][ T5740] kmem_cache_alloc+0x94/0x3e4 [ 85.000751][ T5740] btrfs_get_or_create_delayed_node+0x128/0x4c8 [ 85.001717][ T5740] btrfs_delayed_update_inode+0x3c/0x1b7c [ 85.002576][ T5740] btrfs_update_inode+0x210/0x3d4 [ 85.003311][ T5740] btrfs_create+0x360/0x508 [ 85.003998][ T5740] path_openat+0x1144/0x26e4 [ 85.004687][ T5740] do_filp_open+0x164/0x330 [ 85.005399][ T5740] do_sys_openat2+0x128/0x3d8 [ 85.006085][ T5740] __arm64_sys_openat+0x120/0x154 [ 85.006785][ T5740] invoke_syscall+0x98/0x2b8 [ 85.007500][ T5740] el0_svc_common+0x138/0x258 [ 85.008128][ T5740] do_el0_svc+0x58/0x14c [ 85.008734][ T5740] el0_svc+0x78/0x1e0 [ 85.009282][ T5740] el0t_64_sync_handler+0xcc/0xe4 [ 85.010057][ T5740] el0t_64_sync+0x1a0/0x1a4