Warning: Permanently added '10.128.0.235' (ED25519) to the list of known hosts. 1970/01/01 00:01:03 parsed 1 programs [ 64.679283][ T4434] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 68.560628][ T4526] chnl_net:caif_netlink_parms(): no params data found [ 68.577321][ T4526] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.578653][ T4526] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.580071][ T4526] device bridge_slave_0 entered promiscuous mode [ 68.583002][ T4526] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.584136][ T4526] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.585578][ T4526] device bridge_slave_1 entered promiscuous mode [ 68.594947][ T4526] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.597261][ T4526] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.605569][ T4526] team0: Port device team_slave_0 added [ 68.607379][ T4526] team0: Port device team_slave_1 added [ 68.613705][ T4526] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 68.614898][ T4526] 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. [ 68.618808][ T4526] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 68.621033][ T4526] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 68.622148][ T4526] 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. [ 68.625980][ T4526] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 68.689022][ T4526] device hsr_slave_0 entered promiscuous mode [ 68.747821][ T4526] device hsr_slave_1 entered promiscuous mode [ 69.312846][ T4526] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 69.329739][ T4526] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 69.369548][ T4526] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 69.399403][ T4526] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 69.457347][ T4526] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.458562][ T4526] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.459786][ T4526] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.460788][ T4526] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.488141][ T4526] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.494249][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.496038][ T1605] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.497495][ T1605] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.499353][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 69.510917][ T4526] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.514139][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.515686][ T1605] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.516721][ T1605] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.520315][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.521733][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.522788][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.527539][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.530186][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.540920][ T1885] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.543639][ T1885] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.545161][ T1885] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.559815][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.561385][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.563673][ T4526] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.608755][ T1540] cfg80211: failed to load regulatory.db [ 69.618826][ T2065] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.619872][ T2065] ieee802154 phy1 wpan1: encryption failed: -22 [ 69.683189][ T4526] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.684691][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.685871][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.698943][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 69.700570][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.708951][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 69.710432][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.712965][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.714467][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.715990][ T4526] device veth0_vlan entered promiscuous mode [ 69.719862][ T4526] device veth1_vlan entered promiscuous mode [ 69.733236][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.734836][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.736339][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 69.738185][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.749243][ T4526] device veth0_macvtap entered promiscuous mode [ 69.751418][ T4526] device veth1_macvtap entered promiscuous mode [ 69.755932][ T4526] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.759210][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.760683][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 69.762033][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 69.763564][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.778427][ T4526] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.779558][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 69.781009][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 69.783894][ T4526] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.785228][ T4526] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.786472][ T4526] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.789098][ T4526] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.293018][ T148] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.610720][ T148] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.860729][ T148] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.911180][ T148] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.155546][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.156953][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.164502][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.166905][ T325] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.168238][ T325] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.169846][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:15 executed programs: 0 [ 75.492394][ T4961] chnl_net:caif_netlink_parms(): no params data found [ 75.517687][ T4961] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.518892][ T4961] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.520332][ T4961] device bridge_slave_0 entered promiscuous mode [ 75.522271][ T4961] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.523316][ T4961] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.524668][ T4961] device bridge_slave_1 entered promiscuous mode [ 75.538395][ T4961] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.541041][ T4961] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.549414][ T4961] team0: Port device team_slave_0 added [ 75.551310][ T4961] team0: Port device team_slave_1 added [ 75.558735][ T4961] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.559830][ T4961] 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. [ 75.563510][ T4961] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.565985][ T4961] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.567085][ T4961] 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. [ 75.571196][ T4961] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.618954][ T4961] device hsr_slave_0 entered promiscuous mode [ 75.638049][ T4961] device hsr_slave_1 entered promiscuous mode [ 75.687787][ T4961] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 75.688962][ T4961] Cannot create hsr debugfs directory [ 76.180567][ T4961] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.230197][ T4961] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.259881][ T4961] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.299045][ T4961] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.373602][ T4961] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.377303][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 76.378872][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.381991][ T4961] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.384438][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 76.385894][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.387274][ T1605] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.388407][ T1605] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.389979][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 76.393441][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 76.394993][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.396436][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.397447][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.403345][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 76.405196][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 76.411361][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 76.413538][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.415076][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 76.416663][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.421604][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 76.423231][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.426992][ T4961] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.429420][ T4961] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.432831][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.434366][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 76.435951][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.488512][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.489849][ T1605] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.493353][ T4961] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.499623][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 76.501295][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.508818][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 76.510416][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.512175][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.513848][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.516439][ T4961] device veth0_vlan entered promiscuous mode [ 76.521363][ T4961] device veth1_vlan entered promiscuous mode [ 76.542238][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.543775][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.545212][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.546652][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.550406][ T4961] device veth0_macvtap entered promiscuous mode [ 76.552689][ T4961] device veth1_macvtap entered promiscuous mode [ 76.557562][ T4961] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 76.560015][ T4961] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 76.562675][ T4961] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.563927][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.565524][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.566906][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.569070][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.571678][ T4961] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 76.573273][ T4961] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 76.575349][ T4961] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.576530][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.577953][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.581218][ T4961] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.582637][ T4961] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.584006][ T4961] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.585280][ T4961] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.615692][ T1605] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.617060][ T1605] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.619645][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 76.638242][ T325] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.639562][ T325] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.641134][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 76.783349][ T5108] loop0: detected capacity change from 0 to 32768 [ 76.827885][ T5108] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.16 (5108) [ 76.835502][ T5108] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 76.836861][ T5108] BTRFS info (device loop0): metadata ratio 1025 [ 76.838359][ T5108] BTRFS info (device loop0): doing ref verification [ 76.839394][ T5108] BTRFS info (device loop0): force clearing of disk cache [ 76.840465][ T5108] BTRFS info (device loop0): turning off barriers [ 76.841383][ T5108] BTRFS info (device loop0): setting nodatacow, compression disabled [ 76.842579][ T5108] BTRFS info (device loop0): enabling ssd optimizations [ 76.843561][ T5108] BTRFS info (device loop0): using spread ssd allocation scheme [ 76.844682][ T5108] BTRFS info (device loop0): not using ssd optimizations [ 76.845639][ T5108] BTRFS info (device loop0): not using spread ssd allocation scheme [ 76.846829][ T5108] BTRFS info (device loop0): using free space tree [ 76.848652][ T5108] BTRFS info (device loop0): has skinny extents [ 76.866325][ T5108] BTRFS info (device loop0): clearing free space tree [ 76.867536][ T5108] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 76.869787][ T5108] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 76.876523][ T5108] BTRFS info (device loop0): creating free space tree [ 76.878921][ T5108] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 76.880356][ T5108] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 76.886708][ T5108] FAULT_INJECTION: forcing a failure. [ 76.886708][ T5108] name failslab, interval 1, probability 0, space 0, times 1 [ 76.889344][ T5108] CPU: 1 PID: 5108 Comm: syz.0.16 Not tainted syzkaller #0 [ 76.890423][ T5108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.891966][ T5108] Call trace: [ 76.892421][ T5108] dump_backtrace+0x0/0x43c [ 76.893056][ T5108] show_stack+0x2c/0x3c [ 76.893612][ T5108] __dump_stack+0x30/0x40 [ 76.894230][ T5108] dump_stack_lvl+0xf8/0x160 [ 76.894836][ T5108] dump_stack+0x1c/0x5c [ 76.895394][ T5108] should_fail+0x3c0/0x51c [ 76.895994][ T5108] __should_failslab+0xbc/0x10c [ 76.896659][ T5108] should_failslab+0x10/0x28 [ 76.897312][ T5108] slab_pre_alloc_hook+0x64/0xec [ 76.898018][ T5108] kmem_cache_alloc+0x94/0x3e4 [ 76.898755][ T5108] btrfs_alloc_path+0x5c/0x68 [ 76.899415][ T5108] btrfs_insert_dir_item+0x16c/0x3b8 [ 76.900143][ T5108] btrfs_add_link+0x294/0xa68 [ 76.900799][ T5108] btrfs_link+0x3ac/0x6a4 [ 76.901442][ T5108] vfs_link+0x5b4/0x744 [ 76.902054][ T5108] do_linkat+0x3dc/0x6f8 [ 76.902642][ T5108] __arm64_sys_linkat+0xe4/0x100 [ 76.903370][ T5108] invoke_syscall+0x98/0x2b8 [ 76.904037][ T5108] el0_svc_common+0x138/0x258 [ 76.904659][ T5108] do_el0_svc+0x58/0x14c [ 76.905215][ T5108] el0_svc+0x78/0x1e0 [ 76.905793][ T5108] el0t_64_sync_handler+0xcc/0xe4 [ 76.906469][ T5108] el0t_64_sync+0x1a0/0x1a4 [ 76.909926][ T5108] ------------[ cut here ]------------ [ 76.911094][ T5108] WARNING: CPU: 1 PID: 5108 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 76.912294][ T5108] Modules linked in: [ 76.912816][ T5108] CPU: 1 PID: 5108 Comm: syz.0.16 Not tainted syzkaller #0 [ 76.913884][ T5108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.915416][ T5108] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.916591][ T5108] pc : btrfs_add_link+0x6e8/0xa68 [ 76.917346][ T5108] lr : btrfs_add_link+0x6e8/0xa68 [ 76.918092][ T5108] sp : ffff80001ff579e0 [ 76.918642][ T5108] x29: ffff80001ff57ae0 x28: ffff0000df119210 x27: 0000000000000107 [ 76.919894][ T5108] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 76.921094][ T5108] x23: 0000000000000005 x22: 1fffe0001be2324d x21: ffff700003feaf44 [ 76.922287][ T5108] x20: 00000000fffffff4 x19: ffff0000df119268 x18: 0000000000000001 [ 76.923492][ T5108] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 76.924737][ T5108] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 76.925950][ T5108] x11: 0000000000000000 x10: 0000000000000000 x9 : 87f0d5e04313fc00 [ 76.927155][ T5108] x8 : 87f0d5e04313fc00 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.928305][ T5108] x5 : ffff80001ff572d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 76.929440][ T5108] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.930675][ T5108] Call trace: [ 76.931127][ T5108] btrfs_add_link+0x6e8/0xa68 [ 76.931900][ T5108] btrfs_link+0x3ac/0x6a4 [ 76.932645][ T5108] vfs_link+0x5b4/0x744 [ 76.933313][ T5108] do_linkat+0x3dc/0x6f8 [ 76.933964][ T5108] __arm64_sys_linkat+0xe4/0x100 [ 76.934743][ T5108] invoke_syscall+0x98/0x2b8 [ 76.935407][ T5108] el0_svc_common+0x138/0x258 [ 76.936096][ T5108] do_el0_svc+0x58/0x14c [ 76.936710][ T5108] el0_svc+0x78/0x1e0 [ 76.937290][ T5108] el0t_64_sync_handler+0xcc/0xe4 [ 76.938016][ T5108] el0t_64_sync+0x1a0/0x1a4 [ 76.938758][ T5108] irq event stamp: 82124 [ 76.939478][ T5108] hardirqs last enabled at (82123): [] __up_console_sem+0xb4/0x100 [ 76.941009][ T5108] hardirqs last disabled at (82124): [] el1_dbg+0x24/0x80 [ 76.942417][ T5108] softirqs last enabled at (82100): [] handle_softirqs+0xa4c/0xbf0 [ 76.943890][ T5108] softirqs last disabled at (82089): [] __irq_exit_rcu+0x240/0x440 [ 76.945341][ T5108] ---[ end trace 23f092da44d37635 ]--- [ 76.948503][ T5108] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 76.949974][ T5108] BTRFS info (device loop0): forced readonly [ 77.141665][ T5143] loop0: detected capacity change from 0 to 32768 [ 77.207986][ T5143] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.17 (5143) [ 77.214089][ T5143] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 77.215487][ T5143] BTRFS info (device loop0): metadata ratio 1025 [ 77.216454][ T5143] BTRFS info (device loop0): doing ref verification [ 77.217426][ T5143] BTRFS info (device loop0): force clearing of disk cache [ 77.218792][ T5143] BTRFS info (device loop0): turning off barriers [ 77.219779][ T5143] BTRFS info (device loop0): setting nodatacow, compression disabled [ 77.221053][ T5143] BTRFS info (device loop0): enabling ssd optimizations [ 77.222094][ T5143] BTRFS info (device loop0): using spread ssd allocation scheme [ 77.223255][ T5143] BTRFS info (device loop0): not using ssd optimizations [ 77.224302][ T5143] BTRFS info (device loop0): not using spread ssd allocation scheme [ 77.225464][ T5143] BTRFS info (device loop0): using free space tree [ 77.226371][ T5143] BTRFS info (device loop0): has skinny extents [ 77.235398][ T5143] BTRFS info (device loop0): clearing free space tree [ 77.236825][ T5143] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 77.239216][ T5143] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 77.242958][ T5143] BTRFS info (device loop0): creating free space tree [ 77.244504][ T5143] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 77.245982][ T5143] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 77.251540][ T5143] FAULT_INJECTION: forcing a failure. [ 77.251540][ T5143] name failslab, interval 1, probability 0, space 0, times 0 [ 77.253415][ T5143] CPU: 0 PID: 5143 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 77.254640][ T5143] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.256046][ T5143] Call trace: [ 77.256550][ T5143] dump_backtrace+0x0/0x43c [ 77.257183][ T5143] show_stack+0x2c/0x3c [ 77.257750][ T5143] __dump_stack+0x30/0x40 [ 77.258465][ T5143] dump_stack_lvl+0xf8/0x160 [ 77.259137][ T5143] dump_stack+0x1c/0x5c [ 77.259769][ T5143] should_fail+0x3c0/0x51c [ 77.260375][ T5143] __should_failslab+0xbc/0x10c [ 77.261099][ T5143] should_failslab+0x10/0x28 [ 77.261749][ T5143] slab_pre_alloc_hook+0x64/0xec [ 77.262488][ T5143] kmem_cache_alloc+0x94/0x3e4 [ 77.263173][ T5143] btrfs_alloc_path+0x5c/0x68 [ 77.263829][ T5143] btrfs_insert_dir_item+0x16c/0x3b8 [ 77.264587][ T5143] btrfs_add_link+0x294/0xa68 [ 77.265288][ T5143] btrfs_link+0x3ac/0x6a4 [ 77.265964][ T5143] vfs_link+0x5b4/0x744 [ 77.266580][ T5143] do_linkat+0x3dc/0x6f8 [ 77.267187][ T5143] __arm64_sys_linkat+0xe4/0x100 [ 77.267838][ T5143] invoke_syscall+0x98/0x2b8 [ 77.268543][ T5143] el0_svc_common+0x138/0x258 [ 77.269226][ T5143] do_el0_svc+0x58/0x14c [ 77.269815][ T5143] el0_svc+0x78/0x1e0 [ 77.270383][ T5143] el0t_64_sync_handler+0xcc/0xe4 [ 77.271227][ T5143] el0t_64_sync+0x1a0/0x1a4 [ 77.282639][ T5143] ------------[ cut here ]------------ [ 77.283604][ T5143] WARNING: CPU: 0 PID: 5143 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 77.284899][ T5143] Modules linked in: [ 77.285474][ T5143] CPU: 0 PID: 5143 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 77.286707][ T5143] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.288190][ T5143] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.289445][ T5143] pc : btrfs_add_link+0x6e8/0xa68 [ 77.290257][ T5143] lr : btrfs_add_link+0x6e8/0xa68 [ 77.290979][ T5143] sp : ffff80001ff779e0 [ 77.291640][ T5143] x29: ffff80001ff77ae0 x28: ffff0000ddb4a210 x27: 0000000000000107 [ 77.292890][ T5143] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 77.294083][ T5143] x23: 0000000000000005 x22: 1fffe0001bb6944d x21: ffff700003feef44 [ 77.295272][ T5143] x20: 00000000fffffff4 x19: ffff0000ddb4a268 x18: 0000000000000001 [ 77.296489][ T5143] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 77.297629][ T5143] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 77.298779][ T5143] x11: 0000000000000000 x10: 0000000000000000 x9 : a3ade2bb4308a500 [ 77.299922][ T5143] x8 : a3ade2bb4308a500 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.301100][ T5143] x5 : ffff80001ff772d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 77.302280][ T5143] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.303426][ T5143] Call trace: [ 77.303876][ T5143] btrfs_add_link+0x6e8/0xa68 [ 77.304576][ T5143] btrfs_link+0x3ac/0x6a4 [ 77.305213][ T5143] vfs_link+0x5b4/0x744 [ 77.305787][ T5143] do_linkat+0x3dc/0x6f8 [ 77.306390][ T5143] __arm64_sys_linkat+0xe4/0x100 [ 77.307106][ T5143] invoke_syscall+0x98/0x2b8 [ 77.307775][ T5143] el0_svc_common+0x138/0x258 [ 77.308530][ T5143] do_el0_svc+0x58/0x14c [ 77.309162][ T5143] el0_svc+0x78/0x1e0 [ 77.309764][ T5143] el0t_64_sync_handler+0xcc/0xe4 [ 77.310504][ T5143] el0t_64_sync+0x1a0/0x1a4 [ 77.311095][ T5143] irq event stamp: 80470 [ 77.311756][ T5143] hardirqs last enabled at (80469): [] __up_console_sem+0xb4/0x100 [ 77.313111][ T5143] hardirqs last disabled at (80470): [] el1_dbg+0x24/0x80 [ 77.314330][ T5143] softirqs last enabled at (80450): [] handle_softirqs+0xa4c/0xbf0 [ 77.315754][ T5143] softirqs last disabled at (80387): [] __irq_exit_rcu+0x240/0x440 [ 77.317153][ T5143] ---[ end trace 23f092da44d37636 ]--- [ 77.319024][ T5143] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 77.320303][ T5143] BTRFS info (device loop0): forced readonly [ 77.447942][ T7] Bluetooth: hci0: command 0x0409 tx timeout [ 77.456922][ T5165] loop0: detected capacity change from 0 to 32768 [ 77.467518][ T5165] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.18 (5165) [ 77.476399][ T5165] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 77.478246][ T5165] BTRFS info (device loop0): metadata ratio 1025 [ 77.479221][ T5165] BTRFS info (device loop0): doing ref verification [ 77.480288][ T5165] BTRFS info (device loop0): force clearing of disk cache [ 77.481327][ T5165] BTRFS info (device loop0): turning off barriers [ 77.482297][ T5165] BTRFS info (device loop0): setting nodatacow, compression disabled [ 77.483553][ T5165] BTRFS info (device loop0): enabling ssd optimizations [ 77.484565][ T5165] BTRFS info (device loop0): using spread ssd allocation scheme [ 77.485629][ T5165] BTRFS info (device loop0): not using ssd optimizations [ 77.486635][ T5165] BTRFS info (device loop0): not using spread ssd allocation scheme [ 77.488579][ T5165] BTRFS info (device loop0): using free space tree [ 77.489440][ T5165] BTRFS info (device loop0): has skinny extents [ 77.496944][ T5165] BTRFS info (device loop0): clearing free space tree [ 77.498199][ T5165] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 77.499479][ T5165] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 77.503051][ T5165] BTRFS info (device loop0): creating free space tree [ 77.504933][ T5165] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 77.506262][ T5165] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 77.510966][ T5165] FAULT_INJECTION: forcing a failure. [ 77.510966][ T5165] name failslab, interval 1, probability 0, space 0, times 0 [ 77.512695][ T5165] CPU: 1 PID: 5165 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 77.513996][ T5165] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.515543][ T5165] Call trace: [ 77.516028][ T5165] dump_backtrace+0x0/0x43c [ 77.516669][ T5165] show_stack+0x2c/0x3c [ 77.517270][ T5165] __dump_stack+0x30/0x40 [ 77.517940][ T5165] dump_stack_lvl+0xf8/0x160 [ 77.518609][ T5165] dump_stack+0x1c/0x5c [ 77.519193][ T5165] should_fail+0x3c0/0x51c [ 77.519950][ T5165] __should_failslab+0xbc/0x10c [ 77.520728][ T5165] should_failslab+0x10/0x28 [ 77.521446][ T5165] slab_pre_alloc_hook+0x64/0xec [ 77.522220][ T5165] kmem_cache_alloc+0x94/0x3e4 [ 77.522960][ T5165] btrfs_alloc_path+0x5c/0x68 [ 77.523683][ T5165] btrfs_insert_dir_item+0x16c/0x3b8 [ 77.524419][ T5165] btrfs_add_link+0x294/0xa68 [ 77.525109][ T5165] btrfs_link+0x3ac/0x6a4 [ 77.525779][ T5165] vfs_link+0x5b4/0x744 [ 77.526440][ T5165] do_linkat+0x3dc/0x6f8 [ 77.527066][ T5165] __arm64_sys_linkat+0xe4/0x100 [ 77.527802][ T5165] invoke_syscall+0x98/0x2b8 [ 77.528461][ T5165] el0_svc_common+0x138/0x258 [ 77.529169][ T5165] do_el0_svc+0x58/0x14c [ 77.529812][ T5165] el0_svc+0x78/0x1e0 [ 77.530413][ T5165] el0t_64_sync_handler+0xcc/0xe4 [ 77.531160][ T5165] el0t_64_sync+0x1a0/0x1a4 [ 77.532898][ T5165] ------------[ cut here ]------------ [ 77.533947][ T5165] WARNING: CPU: 0 PID: 5165 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 77.535316][ T5165] Modules linked in: [ 77.535894][ T5165] CPU: 0 PID: 5165 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 77.537182][ T5165] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.538634][ T5165] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.539783][ T5165] pc : btrfs_add_link+0x6e8/0xa68 [ 77.540571][ T5165] lr : btrfs_add_link+0x6e8/0xa68 [ 77.541337][ T5165] sp : ffff8000200179e0 [ 77.541914][ T5165] x29: ffff800020017ae0 x28: ffff0000df1194d0 x27: 0000000000000107 [ 77.543022][ T5165] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 77.544091][ T5165] x23: 0000000000000005 x22: 1fffe0001be232a5 x21: ffff700004002f44 [ 77.545291][ T5165] x20: 00000000fffffff4 x19: ffff0000df119528 x18: 0000000000000001 [ 77.546532][ T5165] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 77.547786][ T5165] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 77.549018][ T5165] x11: 0000000000000000 x10: 0000000000000000 x9 : e76f890690d5bd00 [ 77.550199][ T5165] x8 : e76f890690d5bd00 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.551428][ T5165] x5 : ffff8000200172d8 x4 : ffff8000141ff5a0 x3 : ffff800008302274 [ 77.552648][ T5165] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.553775][ T5165] Call trace: [ 77.554240][ T5165] btrfs_add_link+0x6e8/0xa68 [ 77.554930][ T5165] btrfs_link+0x3ac/0x6a4 [ 77.555591][ T5165] vfs_link+0x5b4/0x744 [ 77.556257][ T5165] do_linkat+0x3dc/0x6f8 [ 77.556858][ T5165] __arm64_sys_linkat+0xe4/0x100 [ 77.557602][ T5165] invoke_syscall+0x98/0x2b8 [ 77.558303][ T5165] el0_svc_common+0x138/0x258 [ 77.558949][ T5165] do_el0_svc+0x58/0x14c [ 77.559607][ T5165] el0_svc+0x78/0x1e0 [ 77.560227][ T5165] el0t_64_sync_handler+0xcc/0xe4 [ 77.561039][ T5165] el0t_64_sync+0x1a0/0x1a4 [ 77.561676][ T5165] irq event stamp: 81124 [ 77.562306][ T5165] hardirqs last enabled at (81123): [] __up_console_sem+0xb4/0x100 [ 77.563675][ T5165] hardirqs last disabled at (81124): [] el1_dbg+0x24/0x80 [ 77.564988][ T5165] softirqs last enabled at (81104): [] handle_softirqs+0xa4c/0xbf0 [ 77.566391][ T5165] softirqs last disabled at (81075): [] __irq_exit_rcu+0x240/0x440 [ 77.567815][ T5165] ---[ end trace 23f092da44d37637 ]--- [ 77.569750][ T5165] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 77.571118][ T5165] BTRFS info (device loop0): forced readonly [ 77.743261][ T5189] loop0: detected capacity change from 0 to 32768 [ 77.754260][ T5189] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.19 (5189) [ 77.759084][ T5189] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 77.760527][ T5189] BTRFS info (device loop0): metadata ratio 1025 [ 77.761487][ T5189] BTRFS info (device loop0): doing ref verification [ 77.762484][ T5189] BTRFS info (device loop0): force clearing of disk cache [ 77.763496][ T5189] BTRFS info (device loop0): turning off barriers [ 77.764454][ T5189] BTRFS info (device loop0): setting nodatacow, compression disabled [ 77.765578][ T5189] BTRFS info (device loop0): enabling ssd optimizations [ 77.766516][ T5189] BTRFS info (device loop0): using spread ssd allocation scheme [ 77.767606][ T5189] BTRFS info (device loop0): not using ssd optimizations [ 77.770582][ T5189] BTRFS info (device loop0): not using spread ssd allocation scheme [ 77.771750][ T5189] BTRFS info (device loop0): using free space tree [ 77.772623][ T5189] BTRFS info (device loop0): has skinny extents [ 77.782966][ T5189] BTRFS info (device loop0): clearing free space tree [ 77.784035][ T5189] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 77.785591][ T5189] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 77.789396][ T5189] BTRFS info (device loop0): creating free space tree [ 77.790947][ T5189] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 77.792286][ T5189] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 77.797259][ T5189] FAULT_INJECTION: forcing a failure. [ 77.797259][ T5189] name failslab, interval 1, probability 0, space 0, times 0 [ 77.799241][ T5189] CPU: 1 PID: 5189 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 77.800513][ T5189] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.801955][ T5189] Call trace: [ 77.802413][ T5189] dump_backtrace+0x0/0x43c [ 77.803082][ T5189] show_stack+0x2c/0x3c [ 77.803681][ T5189] __dump_stack+0x30/0x40 [ 77.804363][ T5189] dump_stack_lvl+0xf8/0x160 [ 77.804977][ T5189] dump_stack+0x1c/0x5c [ 77.805591][ T5189] should_fail+0x3c0/0x51c [ 77.806216][ T5189] __should_failslab+0xbc/0x10c [ 77.806931][ T5189] should_failslab+0x10/0x28 [ 77.807636][ T5189] slab_pre_alloc_hook+0x64/0xec [ 77.808336][ T5189] kmem_cache_alloc+0x94/0x3e4 [ 77.809002][ T5189] btrfs_alloc_path+0x5c/0x68 [ 77.809667][ T5189] btrfs_insert_inode_ref+0xe8/0x9e0 [ 77.810457][ T5189] btrfs_add_link+0x22c/0xa68 [ 77.811072][ T5189] btrfs_link+0x3ac/0x6a4 [ 77.811701][ T5189] vfs_link+0x5b4/0x744 [ 77.812422][ T5189] do_linkat+0x3dc/0x6f8 [ 77.813100][ T5189] __arm64_sys_linkat+0xe4/0x100 [ 77.813811][ T5189] invoke_syscall+0x98/0x2b8 [ 77.814482][ T5189] el0_svc_common+0x138/0x258 [ 77.815257][ T5189] do_el0_svc+0x58/0x14c [ 77.815815][ T5189] el0_svc+0x78/0x1e0 [ 77.816417][ T5189] el0t_64_sync_handler+0xcc/0xe4 [ 77.817148][ T5189] el0t_64_sync+0x1a0/0x1a4 [ 77.963394][ T5212] loop0: detected capacity change from 0 to 32768 [ 78.009187][ T5212] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.20 (5212) [ 78.052106][ T5212] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 78.053457][ T5212] BTRFS info (device loop0): metadata ratio 1025 [ 78.054421][ T5212] BTRFS info (device loop0): doing ref verification [ 78.055361][ T5212] BTRFS info (device loop0): force clearing of disk cache [ 78.056441][ T5212] BTRFS info (device loop0): turning off barriers [ 78.057425][ T5212] BTRFS info (device loop0): setting nodatacow, compression disabled [ 78.059354][ T5212] BTRFS info (device loop0): enabling ssd optimizations [ 78.060377][ T5212] BTRFS info (device loop0): using spread ssd allocation scheme [ 78.061481][ T5212] BTRFS info (device loop0): not using ssd optimizations [ 78.062477][ T5212] BTRFS info (device loop0): not using spread ssd allocation scheme [ 78.063567][ T5212] BTRFS info (device loop0): using free space tree [ 78.064500][ T5212] BTRFS info (device loop0): has skinny extents [ 78.090369][ T5212] BTRFS info (device loop0): clearing free space tree [ 78.091496][ T5212] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 78.092868][ T5212] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 78.096059][ T5212] BTRFS info (device loop0): creating free space tree [ 78.097471][ T5212] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 78.100759][ T5212] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 78.105029][ T5212] FAULT_INJECTION: forcing a failure. [ 78.105029][ T5212] name failslab, interval 1, probability 0, space 0, times 0 [ 78.107056][ T5212] CPU: 0 PID: 5212 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 78.108362][ T5212] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.109870][ T5212] Call trace: [ 78.110351][ T5212] dump_backtrace+0x0/0x43c [ 78.111039][ T5212] show_stack+0x2c/0x3c [ 78.111615][ T5212] __dump_stack+0x30/0x40 [ 78.112273][ T5212] dump_stack_lvl+0xf8/0x160 [ 78.112966][ T5212] dump_stack+0x1c/0x5c [ 78.113567][ T5212] should_fail+0x3c0/0x51c [ 78.114207][ T5212] __should_failslab+0xbc/0x10c [ 78.114882][ T5212] should_failslab+0x10/0x28 [ 78.115566][ T5212] slab_pre_alloc_hook+0x64/0xec [ 78.116310][ T5212] kmem_cache_alloc+0x94/0x3e4 [ 78.116996][ T5212] btrfs_alloc_path+0x5c/0x68 [ 78.117615][ T5212] btrfs_insert_dir_item+0x16c/0x3b8 [ 78.118350][ T5212] btrfs_add_link+0x294/0xa68 [ 78.119065][ T5212] btrfs_link+0x3ac/0x6a4 [ 78.119740][ T5212] vfs_link+0x5b4/0x744 [ 78.120393][ T5212] do_linkat+0x3dc/0x6f8 [ 78.121079][ T5212] __arm64_sys_linkat+0xe4/0x100 [ 78.121853][ T5212] invoke_syscall+0x98/0x2b8 [ 78.122532][ T5212] el0_svc_common+0x138/0x258 [ 78.123214][ T5212] do_el0_svc+0x58/0x14c [ 78.123790][ T5212] el0_svc+0x78/0x1e0 [ 78.124387][ T5212] el0t_64_sync_handler+0xcc/0xe4 [ 78.125079][ T5212] el0t_64_sync+0x1a0/0x1a4 [ 78.126537][ T5212] ------------[ cut here ]------------ [ 78.127571][ T5212] WARNING: CPU: 1 PID: 5212 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 78.129050][ T5212] Modules linked in: [ 78.129659][ T5212] CPU: 1 PID: 5212 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 78.130915][ T5212] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.132328][ T5212] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.133525][ T5212] pc : btrfs_add_link+0x6e8/0xa68 [ 78.134253][ T5212] lr : btrfs_add_link+0x6e8/0xa68 [ 78.134978][ T5212] sp : ffff8000204b79e0 [ 78.135623][ T5212] x29: ffff8000204b7ae0 x28: ffff0000ddb4a4d0 x27: 0000000000000107 [ 78.136854][ T5212] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 78.138094][ T5212] x23: 0000000000000005 x22: 1fffe0001bb694a5 x21: ffff700004096f44 [ 78.139252][ T5212] x20: 00000000fffffff4 x19: ffff0000ddb4a528 x18: 0000000000000001 [ 78.140459][ T5212] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 78.141686][ T5212] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 78.142879][ T5212] x11: 0000000000000000 x10: 0000000000000000 x9 : 7852c37182d0fe00 [ 78.144016][ T5212] x8 : 7852c37182d0fe00 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.145182][ T5212] x5 : ffff8000204b72d8 x4 : ffff8000141ff5a0 x3 : ffff800008302274 [ 78.146328][ T5212] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.147419][ T5212] Call trace: [ 78.147895][ T5212] btrfs_add_link+0x6e8/0xa68 [ 78.148585][ T5212] btrfs_link+0x3ac/0x6a4 [ 78.149227][ T5212] vfs_link+0x5b4/0x744 [ 78.149854][ T5212] do_linkat+0x3dc/0x6f8 [ 78.150482][ T5212] __arm64_sys_linkat+0xe4/0x100 [ 78.151234][ T5212] invoke_syscall+0x98/0x2b8 [ 78.151869][ T5212] el0_svc_common+0x138/0x258 [ 78.152519][ T5212] do_el0_svc+0x58/0x14c [ 78.153140][ T5212] el0_svc+0x78/0x1e0 [ 78.153737][ T5212] el0t_64_sync_handler+0xcc/0xe4 [ 78.154452][ T5212] el0t_64_sync+0x1a0/0x1a4 [ 78.155091][ T5212] irq event stamp: 80468 [ 78.155712][ T5212] hardirqs last enabled at (80467): [] __up_console_sem+0xb4/0x100 [ 78.157134][ T5212] hardirqs last disabled at (80468): [] el1_dbg+0x24/0x80 [ 78.158393][ T5212] softirqs last enabled at (80430): [] handle_softirqs+0xa4c/0xbf0 [ 78.159864][ T5212] softirqs last disabled at (80401): [] __irq_exit_rcu+0x240/0x440 [ 78.161311][ T5212] ---[ end trace 23f092da44d37638 ]--- [ 78.163727][ T5212] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 78.165028][ T5212] BTRFS info (device loop0): forced readonly [ 78.290495][ T148] device hsr_slave_0 left promiscuous mode [ 78.303890][ T5234] loop0: detected capacity change from 0 to 32768 [ 78.327925][ T148] device hsr_slave_1 left promiscuous mode [ 78.339226][ T5234] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.21 (5234) [ 78.399193][ T5234] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 78.400523][ T5234] BTRFS info (device loop0): metadata ratio 1025 [ 78.401480][ T5234] BTRFS info (device loop0): doing ref verification [ 78.402525][ T5234] BTRFS info (device loop0): force clearing of disk cache [ 78.403565][ T5234] BTRFS info (device loop0): turning off barriers [ 78.404622][ T5234] BTRFS info (device loop0): setting nodatacow, compression disabled [ 78.417743][ T148] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 78.419081][ T148] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 78.420851][ T148] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 78.422064][ T148] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 78.426197][ T5234] FAULT_INJECTION: forcing a failure. [ 78.426197][ T5234] name failslab, interval 1, probability 0, space 0, times 0 [ 78.428643][ T148] device bridge_slave_1 left promiscuous mode [ 78.429538][ T148] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.429558][ T5234] CPU: 1 PID: 5234 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 78.431861][ T5234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.433239][ T5234] Call trace: [ 78.433688][ T5234] dump_backtrace+0x0/0x43c [ 78.434322][ T5234] show_stack+0x2c/0x3c [ 78.434908][ T5234] __dump_stack+0x30/0x40 [ 78.435566][ T5234] dump_stack_lvl+0xf8/0x160 [ 78.436233][ T5234] dump_stack+0x1c/0x5c [ 78.436885][ T5234] should_fail+0x3c0/0x51c [ 78.437516][ T5234] __should_failslab+0xbc/0x10c [ 78.438256][ T5234] should_failslab+0x10/0x28 [ 78.438943][ T5234] slab_pre_alloc_hook+0x64/0xec [ 78.439729][ T5234] kmem_cache_alloc+0x94/0x3e4 [ 78.440426][ T5234] btrfs_alloc_path+0x5c/0x68 [ 78.441176][ T5234] btrfs_insert_inode_ref+0xe8/0x9e0 [ 78.441920][ T5234] btrfs_add_link+0x22c/0xa68 [ 78.442566][ T5234] btrfs_link+0x3ac/0x6a4 [ 78.443151][ T5234] vfs_link+0x5b4/0x744 [ 78.443717][ T5234] do_linkat+0x3dc/0x6f8 [ 78.444319][ T5234] __arm64_sys_linkat+0xe4/0x100 [ 78.445069][ T5234] invoke_syscall+0x98/0x2b8 [ 78.445759][ T5234] el0_svc_common+0x138/0x258 [ 78.446472][ T5234] do_el0_svc+0x58/0x14c [ 78.447111][ T5234] el0_svc+0x78/0x1e0 [ 78.447656][ T5234] el0t_64_sync_handler+0xcc/0xe4 [ 78.448383][ T5234] el0t_64_sync+0x1a0/0x1a4 [ 78.469712][ T148] device bridge_slave_0 left promiscuous mode [ 78.470775][ T148] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.490602][ T4908] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 12 /dev/loop0 scanned by udevd (4908) [ 78.587799][ T148] device veth1_macvtap left promiscuous mode [ 78.588866][ T148] device veth0_macvtap left promiscuous mode [ 78.589864][ T148] device veth1_vlan left promiscuous mode [ 78.590719][ T148] device veth0_vlan left promiscuous mode [ 78.607952][ T5255] loop0: detected capacity change from 0 to 32768 [ 78.689322][ T148] team0 (unregistering): Port device team_slave_1 removed [ 78.695073][ T148] team0 (unregistering): Port device team_slave_0 removed [ 78.699104][ T148] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 78.732225][ T148] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 78.737099][ T5255] FAULT_INJECTION: forcing a failure. [ 78.737099][ T5255] name failslab, interval 1, probability 0, space 0, times 0 [ 78.739157][ T5255] CPU: 1 PID: 5255 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 78.740383][ T5255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.741663][ T5255] Call trace: [ 78.742144][ T5255] dump_backtrace+0x0/0x43c [ 78.742752][ T5255] show_stack+0x2c/0x3c [ 78.743347][ T5255] __dump_stack+0x30/0x40 [ 78.743926][ T5255] dump_stack_lvl+0xf8/0x160 [ 78.744534][ T5255] dump_stack+0x1c/0x5c [ 78.745103][ T5255] should_fail+0x3c0/0x51c [ 78.745714][ T5255] __should_failslab+0xbc/0x10c [ 78.746401][ T5255] should_failslab+0x10/0x28 [ 78.747009][ T5255] slab_pre_alloc_hook+0x64/0xec [ 78.747737][ T5255] kmem_cache_alloc+0x94/0x3e4 [ 78.748445][ T5255] btrfs_alloc_path+0x5c/0x68 [ 78.749171][ T5255] btrfs_insert_inode_ref+0xe8/0x9e0 [ 78.749963][ T5255] btrfs_add_link+0x22c/0xa68 [ 78.750638][ T5255] btrfs_link+0x3ac/0x6a4 [ 78.751245][ T5255] vfs_link+0x5b4/0x744 [ 78.751815][ T5255] do_linkat+0x3dc/0x6f8 [ 78.752391][ T5255] __arm64_sys_linkat+0xe4/0x100 [ 78.753039][ T5255] invoke_syscall+0x98/0x2b8 [ 78.753690][ T5255] el0_svc_common+0x138/0x258 [ 78.754410][ T5255] do_el0_svc+0x58/0x14c [ 78.754991][ T5255] el0_svc+0x78/0x1e0 [ 78.755591][ T5255] el0t_64_sync_handler+0xcc/0xe4 [ 78.756289][ T5255] el0t_64_sync+0x1a0/0x1a4 [ 78.840429][ T4908] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 12 /dev/loop0 scanned by udevd (4908) [ 78.871354][ T148] bond0 (unregistering): Released all slaves [ 78.936387][ T5277] loop0: detected capacity change from 0 to 32768 [ 79.070223][ T5277] FAULT_INJECTION: forcing a failure. [ 79.070223][ T5277] name failslab, interval 1, probability 0, space 0, times 0 [ 79.072855][ T5277] CPU: 1 PID: 5277 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 79.074182][ T5277] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.075639][ T5277] Call trace: [ 79.076077][ T5277] dump_backtrace+0x0/0x43c [ 79.076721][ T5277] show_stack+0x2c/0x3c [ 79.077325][ T5277] __dump_stack+0x30/0x40 [ 79.078017][ T5277] dump_stack_lvl+0xf8/0x160 [ 79.078697][ T5277] dump_stack+0x1c/0x5c [ 79.079273][ T5277] should_fail+0x3c0/0x51c [ 79.079947][ T5277] __should_failslab+0xbc/0x10c [ 79.080645][ T5277] should_failslab+0x10/0x28 [ 79.081355][ T5277] slab_pre_alloc_hook+0x64/0xec [ 79.082062][ T5277] kmem_cache_alloc+0x94/0x3e4 [ 79.082729][ T5277] btrfs_alloc_path+0x5c/0x68 [ 79.083400][ T5277] btrfs_insert_dir_item+0x16c/0x3b8 [ 79.084159][ T5277] btrfs_add_link+0x294/0xa68 [ 79.084823][ T5277] btrfs_link+0x3ac/0x6a4 [ 79.085417][ T5277] vfs_link+0x5b4/0x744 [ 79.085967][ T5277] do_linkat+0x3dc/0x6f8 [ 79.086579][ T5277] __arm64_sys_linkat+0xe4/0x100 [ 79.087307][ T5277] invoke_syscall+0x98/0x2b8 [ 79.087971][ T5277] el0_svc_common+0x138/0x258 [ 79.088635][ T5277] do_el0_svc+0x58/0x14c [ 79.089283][ T5277] el0_svc+0x78/0x1e0 [ 79.089866][ T5277] el0t_64_sync_handler+0xcc/0xe4 [ 79.090621][ T5277] el0t_64_sync+0x1a0/0x1a4 [ 79.091365][ T5277] ------------[ cut here ]------------ [ 79.092269][ T5277] WARNING: CPU: 1 PID: 5277 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 79.093550][ T5277] Modules linked in: [ 79.094110][ T5277] CPU: 1 PID: 5277 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 79.095318][ T5277] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.096760][ T5277] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.097880][ T5277] pc : btrfs_add_link+0x6e8/0xa68 [ 79.098590][ T5277] lr : btrfs_add_link+0x6e8/0xa68 [ 79.099309][ T5277] sp : ffff8000206379e0 [ 79.099895][ T5277] x29: ffff800020637ae0 x28: ffff0000df2ba2c0 x27: 0000000000000107 [ 79.101043][ T5277] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 79.102155][ T5277] x23: 0000000000000005 x22: 1fffe0001be57463 x21: ffff7000040c6f44 [ 79.103295][ T5277] x20: 00000000fffffff4 x19: ffff0000df2ba318 x18: 0000000000000001 [ 79.104492][ T5277] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 79.105642][ T5277] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.106914][ T5277] x11: 0000000000000000 x10: 0000000000000000 x9 : cc9309276c57f900 [ 79.108124][ T5277] x8 : cc9309276c57f900 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.109308][ T5277] x5 : ffff8000206372d8 x4 : ffff8000141ff5a0 x3 : ffff800008302274 [ 79.110454][ T5277] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.111695][ T5277] Call trace: [ 79.112203][ T5277] btrfs_add_link+0x6e8/0xa68 [ 79.112902][ T5277] btrfs_link+0x3ac/0x6a4 [ 79.113564][ T5277] vfs_link+0x5b4/0x744 [ 79.114205][ T5277] do_linkat+0x3dc/0x6f8 [ 79.114812][ T5277] __arm64_sys_linkat+0xe4/0x100 [ 79.115524][ T5277] invoke_syscall+0x98/0x2b8 [ 79.116194][ T5277] el0_svc_common+0x138/0x258 [ 79.116892][ T5277] do_el0_svc+0x58/0x14c [ 79.117475][ T5277] el0_svc+0x78/0x1e0 [ 79.118087][ T5277] el0t_64_sync_handler+0xcc/0xe4 [ 79.118803][ T5277] el0t_64_sync+0x1a0/0x1a4 [ 79.119499][ T5277] irq event stamp: 80058 [ 79.120072][ T5277] hardirqs last enabled at (80057): [] __up_console_sem+0xb4/0x100 [ 79.121502][ T5277] hardirqs last disabled at (80058): [] el1_dbg+0x24/0x80 [ 79.122743][ T5277] softirqs last enabled at (80042): [] handle_softirqs+0xa4c/0xbf0 [ 79.124123][ T5277] softirqs last disabled at (80031): [] __irq_exit_rcu+0x240/0x440 [ 79.125481][ T5277] ---[ end trace 23f092da44d37639 ]--- [ 79.127715][ T5277] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 79.274670][ T5300] loop0: detected capacity change from 0 to 32768 [ 79.318968][ T5300] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.24 (5300) [ 79.390381][ T5300] FAULT_INJECTION: forcing a failure. [ 79.390381][ T5300] name failslab, interval 1, probability 0, space 0, times 0 [ 79.392569][ T5300] CPU: 1 PID: 5300 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 79.393837][ T5300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.395339][ T5300] Call trace: [ 79.395843][ T5300] dump_backtrace+0x0/0x43c [ 79.396516][ T5300] show_stack+0x2c/0x3c [ 79.397126][ T5300] __dump_stack+0x30/0x40 [ 79.397749][ T5300] dump_stack_lvl+0xf8/0x160 [ 79.398427][ T5300] dump_stack+0x1c/0x5c [ 79.399008][ T5300] should_fail+0x3c0/0x51c [ 79.399652][ T5300] __should_failslab+0xbc/0x10c [ 79.400338][ T5300] should_failslab+0x10/0x28 [ 79.401021][ T5300] slab_pre_alloc_hook+0x64/0xec [ 79.401776][ T5300] kmem_cache_alloc+0x94/0x3e4 [ 79.402469][ T5300] btrfs_alloc_path+0x5c/0x68 [ 79.403136][ T5300] btrfs_insert_dir_item+0x16c/0x3b8 [ 79.403895][ T5300] btrfs_add_link+0x294/0xa68 [ 79.404582][ T5300] btrfs_link+0x3ac/0x6a4 [ 79.405245][ T5300] vfs_link+0x5b4/0x744 [ 79.405866][ T5300] do_linkat+0x3dc/0x6f8 [ 79.406527][ T5300] __arm64_sys_linkat+0xe4/0x100 [ 79.407216][ T5300] invoke_syscall+0x98/0x2b8 [ 79.407854][ T5300] el0_svc_common+0x138/0x258 [ 79.408490][ T5300] do_el0_svc+0x58/0x14c [ 79.409099][ T5300] el0_svc+0x78/0x1e0 [ 79.409667][ T5300] el0t_64_sync_handler+0xcc/0xe4 [ 79.410371][ T5300] el0t_64_sync+0x1a0/0x1a4 [ 79.411545][ T5300] ------------[ cut here ]------------ [ 79.412418][ T5300] WARNING: CPU: 1 PID: 5300 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 79.413700][ T5300] Modules linked in: [ 79.414256][ T5300] CPU: 1 PID: 5300 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 79.415492][ T5300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.416943][ T5300] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.418098][ T5300] pc : btrfs_add_link+0x6e8/0xa68 [ 79.418837][ T5300] lr : btrfs_add_link+0x6e8/0xa68 [ 79.419546][ T5300] sp : ffff80001f1479e0 [ 79.420214][ T5300] x29: ffff80001f147ae0 x28: ffff0000df2ba580 x27: 0000000000000107 [ 79.421447][ T5300] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 79.422539][ T5300] x23: 0000000000000005 x22: 1fffe0001be574bb x21: ffff700003e28f44 [ 79.423670][ T5300] x20: 00000000fffffff4 x19: ffff0000df2ba5d8 x18: 0000000000000001 [ 79.424877][ T5300] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 79.426024][ T5300] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.427195][ T5300] x11: 0000000000000000 x10: 0000000000000000 x9 : e37fcac16c2df100 [ 79.428293][ T5300] x8 : e37fcac16c2df100 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.429412][ T5300] x5 : ffff80001f1472d8 x4 : ffff8000141ff5a0 x3 : ffff800008302274 [ 79.430572][ T5300] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.431808][ T5300] Call trace: [ 79.432274][ T5300] btrfs_add_link+0x6e8/0xa68 [ 79.432933][ T5300] btrfs_link+0x3ac/0x6a4 [ 79.433579][ T5300] vfs_link+0x5b4/0x744 [ 79.434200][ T5300] do_linkat+0x3dc/0x6f8 [ 79.434867][ T5300] __arm64_sys_linkat+0xe4/0x100 [ 79.435566][ T5300] invoke_syscall+0x98/0x2b8 [ 79.436221][ T5300] el0_svc_common+0x138/0x258 [ 79.436978][ T5300] do_el0_svc+0x58/0x14c [ 79.437672][ T5300] el0_svc+0x78/0x1e0 [ 79.438267][ T5300] el0t_64_sync_handler+0xcc/0xe4 [ 79.439036][ T5300] el0t_64_sync+0x1a0/0x1a4 [ 79.439704][ T5300] irq event stamp: 80292 [ 79.440328][ T5300] hardirqs last enabled at (80291): [] __up_console_sem+0xb4/0x100 [ 79.441673][ T5300] hardirqs last disabled at (80292): [] el1_dbg+0x24/0x80 [ 79.442908][ T5300] softirqs last enabled at (80272): [] handle_softirqs+0xa4c/0xbf0 [ 79.444296][ T5300] softirqs last disabled at (80259): [] __irq_exit_rcu+0x240/0x440 [ 79.445658][ T5300] ---[ end trace 23f092da44d3763a ]--- [ 79.446649][ T5300] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 79.530847][ T4167] Bluetooth: hci0: command 0x041b tx timeout [ 79.592081][ T5322] loop0: detected capacity change from 0 to 32768 [ 79.599369][ T5322] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.25 (5322) [ 79.624360][ T5322] FAULT_INJECTION: forcing a failure. [ 79.624360][ T5322] name failslab, interval 1, probability 0, space 0, times 0 [ 79.626194][ T5322] CPU: 1 PID: 5322 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 79.627378][ T5322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.628759][ T5322] Call trace: [ 79.629212][ T5322] dump_backtrace+0x0/0x43c [ 79.629878][ T5322] show_stack+0x2c/0x3c [ 79.630494][ T5322] __dump_stack+0x30/0x40 [ 79.631110][ T5322] dump_stack_lvl+0xf8/0x160 [ 79.631736][ T5322] dump_stack+0x1c/0x5c [ 79.632370][ T5322] should_fail+0x3c0/0x51c [ 79.632994][ T5322] __should_failslab+0xbc/0x10c [ 79.633697][ T5322] should_failslab+0x10/0x28 [ 79.634383][ T5322] slab_pre_alloc_hook+0x64/0xec [ 79.635115][ T5322] kmem_cache_alloc+0x94/0x3e4 [ 79.635818][ T5322] btrfs_alloc_path+0x5c/0x68 [ 79.636474][ T5322] btrfs_insert_dir_item+0x16c/0x3b8 [ 79.637278][ T5322] btrfs_add_link+0x294/0xa68 [ 79.637973][ T5322] btrfs_link+0x3ac/0x6a4 [ 79.638549][ T5322] vfs_link+0x5b4/0x744 [ 79.639108][ T5322] do_linkat+0x3dc/0x6f8 [ 79.639720][ T5322] __arm64_sys_linkat+0xe4/0x100 [ 79.640432][ T5322] invoke_syscall+0x98/0x2b8 [ 79.641104][ T5322] el0_svc_common+0x138/0x258 [ 79.641775][ T5322] do_el0_svc+0x58/0x14c [ 79.642346][ T5322] el0_svc+0x78/0x1e0 [ 79.642914][ T5322] el0t_64_sync_handler+0xcc/0xe4 [ 79.643661][ T5322] el0t_64_sync+0x1a0/0x1a4 [ 79.645578][ T5322] ------------[ cut here ]------------ [ 79.646490][ T5322] WARNING: CPU: 1 PID: 5322 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 79.647779][ T5322] Modules linked in: [ 79.648318][ T5322] CPU: 1 PID: 5322 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 79.649584][ T5322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.651082][ T5322] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.652250][ T5322] pc : btrfs_add_link+0x6e8/0xa68 [ 79.652971][ T5322] lr : btrfs_add_link+0x6e8/0xa68 [ 79.653744][ T5322] sp : ffff800020b079e0 [ 79.654313][ T5322] x29: ffff800020b07ae0 x28: ffff0000df2ba840 x27: 0000000000000107 [ 79.655554][ T5322] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 79.656718][ T5322] x23: 0000000000000005 x22: 1fffe0001be57513 x21: ffff700004160f44 [ 79.657925][ T5322] x20: 00000000fffffff4 x19: ffff0000df2ba898 x18: 0000000000000001 [ 79.659046][ T5322] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 79.660163][ T5322] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 79.661269][ T5322] x11: 0000000000000000 x10: 0000000000000000 x9 : 631ff0d838e1f900 [ 79.662502][ T5322] x8 : 631ff0d838e1f900 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.663772][ T5322] x5 : ffff800020b072d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 79.664969][ T5322] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.666144][ T5322] Call trace: [ 79.666596][ T5322] btrfs_add_link+0x6e8/0xa68 [ 79.667256][ T5322] btrfs_link+0x3ac/0x6a4 [ 79.667876][ T5322] vfs_link+0x5b4/0x744 [ 79.668438][ T5322] do_linkat+0x3dc/0x6f8 [ 79.669083][ T5322] __arm64_sys_linkat+0xe4/0x100 [ 79.669746][ T5322] invoke_syscall+0x98/0x2b8 [ 79.670412][ T5322] el0_svc_common+0x138/0x258 [ 79.671130][ T5322] do_el0_svc+0x58/0x14c [ 79.671755][ T5322] el0_svc+0x78/0x1e0 [ 79.672377][ T5322] el0t_64_sync_handler+0xcc/0xe4 [ 79.673067][ T5322] el0t_64_sync+0x1a0/0x1a4 [ 79.673685][ T5322] irq event stamp: 80556 [ 79.674254][ T5322] hardirqs last enabled at (80555): [] __up_console_sem+0xb4/0x100 [ 79.675671][ T5322] hardirqs last disabled at (80556): [] el1_dbg+0x24/0x80 [ 79.676891][ T5322] softirqs last enabled at (80536): [] handle_softirqs+0xa4c/0xbf0 [ 79.678184][ T5322] softirqs last disabled at (80519): [] __irq_exit_rcu+0x240/0x440 [ 79.679551][ T5322] ---[ end trace 23f092da44d3763b ]--- [ 79.681213][ T5322] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 79.832465][ T5344] loop0: detected capacity change from 0 to 32768 [ 79.840811][ T5344] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.26 (5344) [ 79.866309][ T5344] FAULT_INJECTION: forcing a failure. [ 79.866309][ T5344] name failslab, interval 1, probability 0, space 0, times 0 [ 79.868493][ T5344] CPU: 1 PID: 5344 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 79.869707][ T5344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.871048][ T5344] Call trace: [ 79.871487][ T5344] dump_backtrace+0x0/0x43c [ 79.872122][ T5344] show_stack+0x2c/0x3c [ 79.872694][ T5344] __dump_stack+0x30/0x40 [ 79.873323][ T5344] dump_stack_lvl+0xf8/0x160 [ 79.873952][ T5344] dump_stack+0x1c/0x5c [ 79.874521][ T5344] should_fail+0x3c0/0x51c [ 79.875124][ T5344] __should_failslab+0xbc/0x10c [ 79.875825][ T5344] should_failslab+0x10/0x28 [ 79.876487][ T5344] slab_pre_alloc_hook+0x64/0xec [ 79.877166][ T5344] kmem_cache_alloc+0x94/0x3e4 [ 79.877888][ T5344] btrfs_alloc_path+0x5c/0x68 [ 79.878602][ T5344] btrfs_insert_inode_ref+0xe8/0x9e0 [ 79.879440][ T5344] btrfs_add_link+0x22c/0xa68 [ 79.880189][ T5344] btrfs_link+0x3ac/0x6a4 [ 79.880803][ T5344] vfs_link+0x5b4/0x744 [ 79.881412][ T5344] do_linkat+0x3dc/0x6f8 [ 79.882069][ T5344] __arm64_sys_linkat+0xe4/0x100 [ 79.882798][ T5344] invoke_syscall+0x98/0x2b8 [ 79.883489][ T5344] el0_svc_common+0x138/0x258 [ 79.884102][ T5344] do_el0_svc+0x58/0x14c [ 79.884705][ T5344] el0_svc+0x78/0x1e0 [ 79.885343][ T5344] el0t_64_sync_handler+0xcc/0xe4 [ 79.886107][ T5344] el0t_64_sync+0x1a0/0x1a4 [ 79.933385][ T4908] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 12 /dev/loop0 scanned by udevd (4908) [ 80.041082][ T5365] loop0: detected capacity change from 0 to 32768 [ 80.063227][ T5365] FAULT_INJECTION: forcing a failure. [ 80.063227][ T5365] name failslab, interval 1, probability 0, space 0, times 0 [ 80.065241][ T5365] CPU: 1 PID: 5365 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 80.066534][ T5365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.068020][ T5365] Call trace: [ 80.068470][ T5365] dump_backtrace+0x0/0x43c [ 80.069204][ T5365] show_stack+0x2c/0x3c [ 80.069863][ T5365] __dump_stack+0x30/0x40 [ 80.070504][ T5365] dump_stack_lvl+0xf8/0x160 [ 80.071146][ T5365] dump_stack+0x1c/0x5c [ 80.071790][ T5365] should_fail+0x3c0/0x51c [ 80.072464][ T5365] __should_failslab+0xbc/0x10c [ 80.073178][ T5365] should_failslab+0x10/0x28 [ 80.073842][ T5365] slab_pre_alloc_hook+0x64/0xec [ 80.074530][ T5365] kmem_cache_alloc+0x94/0x3e4 [ 80.075240][ T5365] btrfs_alloc_path+0x5c/0x68 [ 80.075977][ T5365] btrfs_insert_inode_ref+0xe8/0x9e0 [ 80.076705][ T5365] btrfs_add_link+0x22c/0xa68 [ 80.077380][ T5365] btrfs_link+0x3ac/0x6a4 [ 80.078069][ T5365] vfs_link+0x5b4/0x744 [ 80.078683][ T5365] do_linkat+0x3dc/0x6f8 [ 80.079299][ T5365] __arm64_sys_linkat+0xe4/0x100 [ 80.080020][ T5365] invoke_syscall+0x98/0x2b8 [ 80.080709][ T5365] el0_svc_common+0x138/0x258 [ 80.081379][ T5365] do_el0_svc+0x58/0x14c [ 80.081976][ T5365] el0_svc+0x78/0x1e0 [ 80.082533][ T5365] el0t_64_sync_handler+0xcc/0xe4 [ 80.083234][ T5365] el0t_64_sync+0x1a0/0x1a4 [ 80.222041][ T5387] loop0: detected capacity change from 0 to 32768 [ 80.259250][ T5387] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.28 (5387) [ 80.280161][ T5387] FAULT_INJECTION: forcing a failure. [ 80.280161][ T5387] name failslab, interval 1, probability 0, space 0, times 0 [ 80.282152][ T5387] CPU: 0 PID: 5387 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 80.283442][ T5387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.284765][ T5387] Call trace: [ 80.285223][ T5387] dump_backtrace+0x0/0x43c [ 80.285933][ T5387] show_stack+0x2c/0x3c [ 80.286537][ T5387] __dump_stack+0x30/0x40 [ 80.287173][ T5387] dump_stack_lvl+0xf8/0x160 [ 80.287871][ T5387] dump_stack+0x1c/0x5c [ 80.288493][ T5387] should_fail+0x3c0/0x51c [ 80.289182][ T5387] __should_failslab+0xbc/0x10c [ 80.289895][ T5387] should_failslab+0x10/0x28 [ 80.290587][ T5387] slab_pre_alloc_hook+0x64/0xec [ 80.291274][ T5387] kmem_cache_alloc+0x94/0x3e4 [ 80.292025][ T5387] btrfs_alloc_path+0x5c/0x68 [ 80.292847][ T5387] btrfs_insert_dir_item+0x16c/0x3b8 [ 80.293737][ T5387] btrfs_add_link+0x294/0xa68 [ 80.294472][ T5387] btrfs_link+0x3ac/0x6a4 [ 80.295147][ T5387] vfs_link+0x5b4/0x744 [ 80.295855][ T5387] do_linkat+0x3dc/0x6f8 [ 80.296548][ T5387] __arm64_sys_linkat+0xe4/0x100 [ 80.297298][ T5387] invoke_syscall+0x98/0x2b8 [ 80.297956][ T5387] el0_svc_common+0x138/0x258 [ 80.298620][ T5387] do_el0_svc+0x58/0x14c [ 80.299273][ T5387] el0_svc+0x78/0x1e0 [ 80.299830][ T5387] el0t_64_sync_handler+0xcc/0xe4 [ 80.300676][ T5387] el0t_64_sync+0x1a0/0x1a4 [ 80.303562][ T5387] ------------[ cut here ]------------ [ 80.304510][ T5387] WARNING: CPU: 0 PID: 5387 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 80.305834][ T5387] Modules linked in: [ 80.306417][ T5387] CPU: 0 PID: 5387 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 80.307636][ T5387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.309035][ T5387] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.310158][ T5387] pc : btrfs_add_link+0x6e8/0xa68 [ 80.310884][ T5387] lr : btrfs_add_link+0x6e8/0xa68 [ 80.311655][ T5387] sp : ffff800020c279e0 [ 80.312234][ T5387] x29: ffff800020c27ae0 x28: ffff0000ddb4aa50 x27: 0000000000000107 [ 80.313387][ T5387] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 80.314602][ T5387] x23: 0000000000000005 x22: 1fffe0001bb69555 x21: ffff700004184f44 [ 80.315816][ T5387] x20: 00000000fffffff4 x19: ffff0000ddb4aaa8 x18: 0000000000000001 [ 80.316980][ T5387] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 80.318143][ T5387] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 80.319317][ T5387] x11: 0000000000000000 x10: 0000000000000000 x9 : c9f19b31fcc89f00 [ 80.320507][ T5387] x8 : c9f19b31fcc89f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.321781][ T5387] x5 : ffff800020c272d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 80.323072][ T5387] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.324342][ T5387] Call trace: [ 80.324843][ T5387] btrfs_add_link+0x6e8/0xa68 [ 80.325503][ T5387] btrfs_link+0x3ac/0x6a4 [ 80.326139][ T5387] vfs_link+0x5b4/0x744 [ 80.326746][ T5387] do_linkat+0x3dc/0x6f8 [ 80.327362][ T5387] __arm64_sys_linkat+0xe4/0x100 [ 80.328056][ T5387] invoke_syscall+0x98/0x2b8 [ 80.328745][ T5387] el0_svc_common+0x138/0x258 [ 80.329357][ T5387] do_el0_svc+0x58/0x14c [ 80.330069][ T5387] el0_svc+0x78/0x1e0 [ 80.330687][ T5387] el0t_64_sync_handler+0xcc/0xe4 [ 80.331422][ T5387] el0t_64_sync+0x1a0/0x1a4 [ 80.332056][ T5387] irq event stamp: 80618 [ 80.332590][ T5387] hardirqs last enabled at (80617): [] __up_console_sem+0xb4/0x100 [ 80.333969][ T5387] hardirqs last disabled at (80618): [] el1_dbg+0x24/0x80 [ 80.335231][ T5387] softirqs last enabled at (80598): [] handle_softirqs+0xa4c/0xbf0 [ 80.336667][ T5387] softirqs last disabled at (80525): [] __irq_exit_rcu+0x240/0x440 [ 80.338001][ T5387] ---[ end trace 23f092da44d3763c ]--- [ 80.340069][ T5387] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 80.547906][ T5409] loop0: detected capacity change from 0 to 32768 [ 80.554875][ T5409] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.29 (5409) [ 80.638386][ T5409] FAULT_INJECTION: forcing a failure. [ 80.638386][ T5409] name failslab, interval 1, probability 0, space 0, times 0 [ 80.640390][ T5409] CPU: 1 PID: 5409 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 80.641671][ T5409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.643099][ T5409] Call trace: [ 80.643558][ T5409] dump_backtrace+0x0/0x43c [ 80.644193][ T5409] show_stack+0x2c/0x3c [ 80.644789][ T5409] __dump_stack+0x30/0x40 [ 80.645370][ T5409] dump_stack_lvl+0xf8/0x160 [ 80.646011][ T5409] dump_stack+0x1c/0x5c [ 80.646565][ T5409] should_fail+0x3c0/0x51c [ 80.647183][ T5409] __should_failslab+0xbc/0x10c [ 80.647882][ T5409] should_failslab+0x10/0x28 [ 80.648552][ T5409] slab_pre_alloc_hook+0x64/0xec [ 80.649280][ T5409] kmem_cache_alloc+0x94/0x3e4 [ 80.649966][ T5409] btrfs_alloc_path+0x5c/0x68 [ 80.650788][ T5409] btrfs_insert_dir_item+0x16c/0x3b8 [ 80.651708][ T5409] btrfs_add_link+0x294/0xa68 [ 80.652471][ T5409] btrfs_link+0x3ac/0x6a4 [ 80.653167][ T5409] vfs_link+0x5b4/0x744 [ 80.653858][ T5409] do_linkat+0x3dc/0x6f8 [ 80.654542][ T5409] __arm64_sys_linkat+0xe4/0x100 [ 80.655382][ T5409] invoke_syscall+0x98/0x2b8 [ 80.656082][ T5409] el0_svc_common+0x138/0x258 [ 80.656844][ T5409] do_el0_svc+0x58/0x14c [ 80.657506][ T5409] el0_svc+0x78/0x1e0 [ 80.658071][ T5409] el0t_64_sync_handler+0xcc/0xe4 [ 80.658868][ T5409] el0t_64_sync+0x1a0/0x1a4 [ 80.676651][ T5409] ------------[ cut here ]------------ [ 80.677679][ T5409] WARNING: CPU: 1 PID: 5409 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 80.678915][ T5409] Modules linked in: [ 80.679471][ T5409] CPU: 1 PID: 5409 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 80.680747][ T5409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.682202][ T5409] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.683367][ T5409] pc : btrfs_add_link+0x6e8/0xa68 [ 80.684229][ T5409] lr : btrfs_add_link+0x6e8/0xa68 [ 80.685065][ T5409] sp : ffff800020d179e0 [ 80.685725][ T5409] x29: ffff800020d17ae0 x28: ffff0000df119000 x27: 0000000000000107 [ 80.686969][ T5409] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 80.688203][ T5409] x23: 0000000000000005 x22: 1fffe0001be2320b x21: ffff7000041a2f44 [ 80.689411][ T5409] x20: 00000000fffffff4 x19: ffff0000df119058 x18: 0000000000000001 [ 80.690466][ T5409] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 80.691618][ T5409] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 80.692752][ T5409] x11: 0000000000000000 x10: 0000000000000000 x9 : 22aa9d1654a01300 [ 80.693943][ T5409] x8 : 22aa9d1654a01300 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.695086][ T5409] x5 : ffff800020d172d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 80.696260][ T5409] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.697392][ T5409] Call trace: [ 80.697847][ T5409] btrfs_add_link+0x6e8/0xa68 [ 80.698513][ T5409] btrfs_link+0x3ac/0x6a4 [ 80.699177][ T5409] vfs_link+0x5b4/0x744 [ 80.699860][ T5409] do_linkat+0x3dc/0x6f8 [ 80.700500][ T5409] __arm64_sys_linkat+0xe4/0x100 [ 80.701213][ T5409] invoke_syscall+0x98/0x2b8 [ 80.701873][ T5409] el0_svc_common+0x138/0x258 [ 80.702539][ T5409] do_el0_svc+0x58/0x14c [ 80.703147][ T5409] el0_svc+0x78/0x1e0 [ 80.703773][ T5409] el0t_64_sync_handler+0xcc/0xe4 [ 80.704532][ T5409] el0t_64_sync+0x1a0/0x1a4 [ 80.705214][ T5409] irq event stamp: 80548 [ 80.705865][ T5409] hardirqs last enabled at (80547): [] __up_console_sem+0xb4/0x100 [ 80.707200][ T5409] hardirqs last disabled at (80548): [] el1_dbg+0x24/0x80 [ 80.708425][ T5409] softirqs last enabled at (80528): [] handle_softirqs+0xa4c/0xbf0 [ 80.709790][ T5409] softirqs last disabled at (80427): [] __irq_exit_rcu+0x240/0x440 [ 80.711216][ T5409] ---[ end trace 23f092da44d3763d ]--- [ 80.714363][ T5409] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory 1970/01/01 00:01:20 executed programs: 16 [ 80.863031][ T5431] loop0: detected capacity change from 0 to 32768 [ 80.932759][ T5431] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.30 (5431) [ 80.962552][ T5431] FAULT_INJECTION: forcing a failure. [ 80.962552][ T5431] name failslab, interval 1, probability 0, space 0, times 0 [ 80.964651][ T5431] CPU: 0 PID: 5431 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 80.965956][ T5431] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.967302][ T5431] Call trace: [ 80.967779][ T5431] dump_backtrace+0x0/0x43c [ 80.968421][ T5431] show_stack+0x2c/0x3c [ 80.969006][ T5431] __dump_stack+0x30/0x40 [ 80.969649][ T5431] dump_stack_lvl+0xf8/0x160 [ 80.970380][ T5431] dump_stack+0x1c/0x5c [ 80.971036][ T5431] should_fail+0x3c0/0x51c [ 80.971764][ T5431] __should_failslab+0xbc/0x10c [ 80.972535][ T5431] should_failslab+0x10/0x28 [ 80.973252][ T5431] slab_pre_alloc_hook+0x64/0xec [ 80.973994][ T5431] kmem_cache_alloc+0x94/0x3e4 [ 80.974767][ T5431] btrfs_alloc_path+0x5c/0x68 [ 80.975432][ T5431] btrfs_insert_dir_item+0x16c/0x3b8 [ 80.976209][ T5431] btrfs_add_link+0x294/0xa68 [ 80.976889][ T5431] btrfs_link+0x3ac/0x6a4 [ 80.977522][ T5431] vfs_link+0x5b4/0x744 [ 80.978119][ T5431] do_linkat+0x3dc/0x6f8 [ 80.978740][ T5431] __arm64_sys_linkat+0xe4/0x100 [ 80.979459][ T5431] invoke_syscall+0x98/0x2b8 [ 80.980091][ T5431] el0_svc_common+0x138/0x258 [ 80.980817][ T5431] do_el0_svc+0x58/0x14c [ 80.981432][ T5431] el0_svc+0x78/0x1e0 [ 80.982041][ T5431] el0t_64_sync_handler+0xcc/0xe4 [ 80.982764][ T5431] el0t_64_sync+0x1a0/0x1a4 [ 80.984287][ T5431] ------------[ cut here ]------------ [ 80.985181][ T5431] WARNING: CPU: 0 PID: 5431 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 80.986520][ T5431] Modules linked in: [ 80.987080][ T5431] CPU: 0 PID: 5431 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 80.988304][ T5431] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.989845][ T5431] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.990917][ T5431] pc : btrfs_add_link+0x6e8/0xa68 [ 80.991588][ T5431] lr : btrfs_add_link+0x6e8/0xa68 [ 80.992320][ T5431] sp : ffff800020e279e0 [ 80.992920][ T5431] x29: ffff800020e27ae0 x28: ffff0000ddb4ad10 x27: 0000000000000107 [ 80.994155][ T5431] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 80.995329][ T5431] x23: 0000000000000005 x22: 1fffe0001bb695ad x21: ffff7000041c4f44 [ 80.996545][ T5431] x20: 00000000fffffff4 x19: ffff0000ddb4ad68 x18: 0000000000000001 [ 80.997705][ T5431] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 80.998857][ T5431] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.000010][ T5431] x11: 0000000000000000 x10: 0000000000000000 x9 : ec0abd50644dc500 [ 81.001133][ T5431] x8 : ec0abd50644dc500 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.002357][ T5431] x5 : ffff800020e272d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 81.003509][ T5431] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.004695][ T5431] Call trace: [ 81.005145][ T5431] btrfs_add_link+0x6e8/0xa68 [ 81.005887][ T5431] btrfs_link+0x3ac/0x6a4 [ 81.006512][ T5431] vfs_link+0x5b4/0x744 [ 81.007098][ T5431] do_linkat+0x3dc/0x6f8 [ 81.007695][ T5431] __arm64_sys_linkat+0xe4/0x100 [ 81.008382][ T5431] invoke_syscall+0x98/0x2b8 [ 81.009033][ T5431] el0_svc_common+0x138/0x258 [ 81.009696][ T5431] do_el0_svc+0x58/0x14c [ 81.010258][ T5431] el0_svc+0x78/0x1e0 [ 81.010800][ T5431] el0t_64_sync_handler+0xcc/0xe4 [ 81.011524][ T5431] el0t_64_sync+0x1a0/0x1a4 [ 81.012242][ T5431] irq event stamp: 80200 [ 81.012847][ T5431] hardirqs last enabled at (80199): [] __up_console_sem+0xb4/0x100 [ 81.014208][ T5431] hardirqs last disabled at (80200): [] el1_dbg+0x24/0x80 [ 81.015453][ T5431] softirqs last enabled at (80180): [] handle_softirqs+0xa4c/0xbf0 [ 81.016793][ T5431] softirqs last disabled at (80161): [] __irq_exit_rcu+0x240/0x440 [ 81.018014][ T5431] ---[ end trace 23f092da44d3763e ]--- [ 81.020141][ T5431] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 81.220550][ T5453] loop0: detected capacity change from 0 to 32768 [ 81.272845][ T5453] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.31 (5453) [ 81.297088][ T5453] FAULT_INJECTION: forcing a failure. [ 81.297088][ T5453] name failslab, interval 1, probability 0, space 0, times 0 [ 81.299227][ T5453] CPU: 0 PID: 5453 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 81.300418][ T5453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.301943][ T5453] Call trace: [ 81.302425][ T5453] dump_backtrace+0x0/0x43c [ 81.303064][ T5453] show_stack+0x2c/0x3c [ 81.303671][ T5453] __dump_stack+0x30/0x40 [ 81.304265][ T5453] dump_stack_lvl+0xf8/0x160 [ 81.304935][ T5453] dump_stack+0x1c/0x5c [ 81.305510][ T5453] should_fail+0x3c0/0x51c [ 81.306131][ T5453] __should_failslab+0xbc/0x10c [ 81.306871][ T5453] should_failslab+0x10/0x28 [ 81.307592][ T5453] slab_pre_alloc_hook+0x64/0xec [ 81.308366][ T5453] kmem_cache_alloc+0x94/0x3e4 [ 81.309066][ T5453] btrfs_alloc_path+0x5c/0x68 [ 81.309742][ T5453] btrfs_insert_dir_item+0x16c/0x3b8 [ 81.310555][ T5453] btrfs_add_link+0x294/0xa68 [ 81.311298][ T5453] btrfs_link+0x3ac/0x6a4 [ 81.311920][ T5453] vfs_link+0x5b4/0x744 [ 81.312521][ T5453] do_linkat+0x3dc/0x6f8 [ 81.313087][ T5453] __arm64_sys_linkat+0xe4/0x100 [ 81.313820][ T5453] invoke_syscall+0x98/0x2b8 [ 81.314579][ T5453] el0_svc_common+0x138/0x258 [ 81.315294][ T5453] do_el0_svc+0x58/0x14c [ 81.315923][ T5453] el0_svc+0x78/0x1e0 [ 81.316519][ T5453] el0t_64_sync_handler+0xcc/0xe4 [ 81.317316][ T5453] el0t_64_sync+0x1a0/0x1a4 [ 81.319408][ T5453] ------------[ cut here ]------------ [ 81.320376][ T5453] WARNING: CPU: 0 PID: 5453 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 81.321649][ T5453] Modules linked in: [ 81.322215][ T5453] CPU: 0 PID: 5453 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 81.323524][ T5453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.325013][ T5453] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.326037][ T5453] pc : btrfs_add_link+0x6e8/0xa68 [ 81.326836][ T5453] lr : btrfs_add_link+0x6e8/0xa68 [ 81.327523][ T5453] sp : ffff8000211279e0 [ 81.328147][ T5453] x29: ffff800021127ae0 x28: ffff0000ddb4a210 x27: 0000000000000107 [ 81.329361][ T5453] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 81.330529][ T5453] x23: 0000000000000005 x22: 1fffe0001bb6944d x21: ffff700004224f44 [ 81.331720][ T5453] x20: 00000000fffffff4 x19: ffff0000ddb4a268 x18: 0000000000000001 [ 81.332864][ T5453] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 81.334143][ T5453] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.335562][ T5453] x11: 0000000000000000 x10: 0000000000000000 x9 : f582cc8b7d2c9900 [ 81.336839][ T5453] x8 : f582cc8b7d2c9900 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.338125][ T5453] x5 : ffff8000211272d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 81.339365][ T5453] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.340542][ T5453] Call trace: [ 81.341002][ T5453] btrfs_add_link+0x6e8/0xa68 [ 81.341641][ T5453] btrfs_link+0x3ac/0x6a4 [ 81.342246][ T5453] vfs_link+0x5b4/0x744 [ 81.342882][ T5453] do_linkat+0x3dc/0x6f8 [ 81.343472][ T5453] __arm64_sys_linkat+0xe4/0x100 [ 81.344185][ T5453] invoke_syscall+0x98/0x2b8 [ 81.344871][ T5453] el0_svc_common+0x138/0x258 [ 81.345566][ T5453] do_el0_svc+0x58/0x14c [ 81.346190][ T5453] el0_svc+0x78/0x1e0 [ 81.346748][ T5453] el0t_64_sync_handler+0xcc/0xe4 [ 81.347468][ T5453] el0t_64_sync+0x1a0/0x1a4 [ 81.348125][ T5453] irq event stamp: 79942 [ 81.348703][ T5453] hardirqs last enabled at (79941): [] __up_console_sem+0xb4/0x100 [ 81.350055][ T5453] hardirqs last disabled at (79942): [] el1_dbg+0x24/0x80 [ 81.351241][ T5453] softirqs last enabled at (79922): [] handle_softirqs+0xa4c/0xbf0 [ 81.352526][ T5453] softirqs last disabled at (79899): [] __irq_exit_rcu+0x240/0x440 [ 81.353806][ T5453] ---[ end trace 23f092da44d3763f ]--- [ 81.355295][ T5453] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 81.540130][ T5475] loop0: detected capacity change from 0 to 32768 [ 81.578926][ T5475] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.32 (5475) [ 81.618534][ T4172] Bluetooth: hci0: command 0x040f tx timeout [ 81.624248][ T5475] FAULT_INJECTION: forcing a failure. [ 81.624248][ T5475] name failslab, interval 1, probability 0, space 0, times 0 [ 81.626271][ T5475] CPU: 0 PID: 5475 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 81.627477][ T5475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.628946][ T5475] Call trace: [ 81.629435][ T5475] dump_backtrace+0x0/0x43c [ 81.630084][ T5475] show_stack+0x2c/0x3c [ 81.630734][ T5475] __dump_stack+0x30/0x40 [ 81.631333][ T5475] dump_stack_lvl+0xf8/0x160 [ 81.631966][ T5475] dump_stack+0x1c/0x5c [ 81.632576][ T5475] should_fail+0x3c0/0x51c [ 81.633219][ T5475] __should_failslab+0xbc/0x10c [ 81.633940][ T5475] should_failslab+0x10/0x28 [ 81.634540][ T5475] slab_pre_alloc_hook+0x64/0xec [ 81.635242][ T5475] kmem_cache_alloc+0x94/0x3e4 [ 81.635914][ T5475] btrfs_alloc_path+0x5c/0x68 [ 81.636617][ T5475] btrfs_insert_inode_ref+0xe8/0x9e0 [ 81.637367][ T5475] btrfs_add_link+0x22c/0xa68 [ 81.638049][ T5475] btrfs_link+0x3ac/0x6a4 [ 81.638648][ T5475] vfs_link+0x5b4/0x744 [ 81.639218][ T5475] do_linkat+0x3dc/0x6f8 [ 81.639850][ T5475] __arm64_sys_linkat+0xe4/0x100 [ 81.640577][ T5475] invoke_syscall+0x98/0x2b8 [ 81.641213][ T5475] el0_svc_common+0x138/0x258 [ 81.641894][ T5475] do_el0_svc+0x58/0x14c [ 81.642486][ T5475] el0_svc+0x78/0x1e0 [ 81.642992][ T5475] el0t_64_sync_handler+0xcc/0xe4 [ 81.643723][ T5475] el0t_64_sync+0x1a0/0x1a4 [ 81.786431][ T5497] loop0: detected capacity change from 0 to 32768 [ 81.794288][ T5497] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.33 (5497) [ 81.818582][ T5497] FAULT_INJECTION: forcing a failure. [ 81.818582][ T5497] name failslab, interval 1, probability 0, space 0, times 0 [ 81.820537][ T5497] CPU: 0 PID: 5497 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 81.821840][ T5497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.823360][ T5497] Call trace: [ 81.823853][ T5497] dump_backtrace+0x0/0x43c [ 81.824514][ T5497] show_stack+0x2c/0x3c [ 81.825112][ T5497] __dump_stack+0x30/0x40 [ 81.825696][ T5497] dump_stack_lvl+0xf8/0x160 [ 81.826361][ T5497] dump_stack+0x1c/0x5c [ 81.826950][ T5497] should_fail+0x3c0/0x51c [ 81.827549][ T5497] __should_failslab+0xbc/0x10c [ 81.828245][ T5497] should_failslab+0x10/0x28 [ 81.828889][ T5497] slab_pre_alloc_hook+0x64/0xec [ 81.829584][ T5497] kmem_cache_alloc+0x94/0x3e4 [ 81.830257][ T5497] btrfs_alloc_path+0x5c/0x68 [ 81.830918][ T5497] btrfs_insert_dir_item+0x16c/0x3b8 [ 81.831660][ T5497] btrfs_add_link+0x294/0xa68 [ 81.832326][ T5497] btrfs_link+0x3ac/0x6a4 [ 81.832901][ T5497] vfs_link+0x5b4/0x744 [ 81.833533][ T5497] do_linkat+0x3dc/0x6f8 [ 81.834212][ T5497] __arm64_sys_linkat+0xe4/0x100 [ 81.834989][ T5497] invoke_syscall+0x98/0x2b8 [ 81.835697][ T5497] el0_svc_common+0x138/0x258 [ 81.836398][ T5497] do_el0_svc+0x58/0x14c [ 81.837011][ T5497] el0_svc+0x78/0x1e0 [ 81.837558][ T5497] el0t_64_sync_handler+0xcc/0xe4 [ 81.838264][ T5497] el0t_64_sync+0x1a0/0x1a4 [ 81.839797][ T5497] ------------[ cut here ]------------ [ 81.840720][ T5497] WARNING: CPU: 0 PID: 5497 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 81.841922][ T5497] Modules linked in: [ 81.842483][ T5497] CPU: 0 PID: 5497 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 81.843745][ T5497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.845180][ T5497] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.846295][ T5497] pc : btrfs_add_link+0x6e8/0xa68 [ 81.846971][ T5497] lr : btrfs_add_link+0x6e8/0xa68 [ 81.847609][ T5497] sp : ffff8000217a79e0 [ 81.848208][ T5497] x29: ffff8000217a7ae0 x28: ffff0000df328160 x27: 0000000000000107 [ 81.849330][ T5497] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 81.850459][ T5497] x23: 0000000000000005 x22: 1fffe0001be65037 x21: ffff7000042f4f44 [ 81.851639][ T5497] x20: 00000000fffffff4 x19: ffff0000df3281b8 x18: 0000000000000001 [ 81.852796][ T5497] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 81.853940][ T5497] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 81.855122][ T5497] x11: 0000000000000000 x10: 0000000000000000 x9 : 6b3eb4f5b6f42b00 [ 81.856252][ T5497] x8 : 6b3eb4f5b6f42b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.857413][ T5497] x5 : ffff8000217a72d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 81.858592][ T5497] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.859838][ T5497] Call trace: [ 81.860295][ T5497] btrfs_add_link+0x6e8/0xa68 [ 81.860948][ T5497] btrfs_link+0x3ac/0x6a4 [ 81.861575][ T5497] vfs_link+0x5b4/0x744 [ 81.862148][ T5497] do_linkat+0x3dc/0x6f8 [ 81.862753][ T5497] __arm64_sys_linkat+0xe4/0x100 [ 81.863415][ T5497] invoke_syscall+0x98/0x2b8 [ 81.864063][ T5497] el0_svc_common+0x138/0x258 [ 81.864714][ T5497] do_el0_svc+0x58/0x14c [ 81.865322][ T5497] el0_svc+0x78/0x1e0 [ 81.865870][ T5497] el0t_64_sync_handler+0xcc/0xe4 [ 81.866518][ T5497] el0t_64_sync+0x1a0/0x1a4 [ 81.867125][ T5497] irq event stamp: 80042 [ 81.867721][ T5497] hardirqs last enabled at (80041): [] __up_console_sem+0xb4/0x100 [ 81.869050][ T5497] hardirqs last disabled at (80042): [] el1_dbg+0x24/0x80 [ 81.870340][ T5497] softirqs last enabled at (80022): [] handle_softirqs+0xa4c/0xbf0 [ 81.871735][ T5497] softirqs last disabled at (79949): [] __irq_exit_rcu+0x240/0x440 [ 81.873062][ T5497] ---[ end trace 23f092da44d37640 ]--- [ 81.875220][ T5497] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 81.876652][ T5497] btrfs_printk: 235 callbacks suppressed [ 81.876661][ T5497] BTRFS info (device loop0): forced readonly [ 82.017053][ T5519] loop0: detected capacity change from 0 to 32768 [ 82.078892][ T5519] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.34 (5519) [ 82.126909][ T5519] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 82.129132][ T5519] BTRFS info (device loop0): metadata ratio 1025 [ 82.130083][ T5519] BTRFS info (device loop0): doing ref verification [ 82.131010][ T5519] BTRFS info (device loop0): force clearing of disk cache [ 82.132018][ T5519] BTRFS info (device loop0): turning off barriers [ 82.132950][ T5519] BTRFS info (device loop0): setting nodatacow, compression disabled [ 82.134094][ T5519] BTRFS info (device loop0): enabling ssd optimizations [ 82.135296][ T5519] BTRFS info (device loop0): using spread ssd allocation scheme [ 82.136403][ T5519] BTRFS info (device loop0): not using ssd optimizations [ 82.137424][ T5519] BTRFS info (device loop0): not using spread ssd allocation scheme [ 82.139159][ T5519] BTRFS info (device loop0): using free space tree [ 82.140155][ T5519] BTRFS info (device loop0): has skinny extents [ 82.148851][ T5519] BTRFS info (device loop0): clearing free space tree [ 82.149945][ T5519] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 82.151396][ T5519] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 82.154268][ T5519] BTRFS info (device loop0): creating free space tree [ 82.155575][ T5519] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 82.157187][ T5519] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 82.162063][ T5519] FAULT_INJECTION: forcing a failure. [ 82.162063][ T5519] name failslab, interval 1, probability 0, space 0, times 0 [ 82.163950][ T5519] CPU: 0 PID: 5519 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 82.165242][ T5519] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.166590][ T5519] Call trace: [ 82.167032][ T5519] dump_backtrace+0x0/0x43c [ 82.167693][ T5519] show_stack+0x2c/0x3c [ 82.168307][ T5519] __dump_stack+0x30/0x40 [ 82.168972][ T5519] dump_stack_lvl+0xf8/0x160 [ 82.169627][ T5519] dump_stack+0x1c/0x5c [ 82.170278][ T5519] should_fail+0x3c0/0x51c [ 82.170906][ T5519] __should_failslab+0xbc/0x10c [ 82.171637][ T5519] should_failslab+0x10/0x28 [ 82.172310][ T5519] slab_pre_alloc_hook+0x64/0xec [ 82.173056][ T5519] kmem_cache_alloc+0x94/0x3e4 [ 82.173716][ T5519] btrfs_alloc_path+0x5c/0x68 [ 82.174398][ T5519] btrfs_insert_dir_item+0x16c/0x3b8 [ 82.175188][ T5519] btrfs_add_link+0x294/0xa68 [ 82.175851][ T5519] btrfs_link+0x3ac/0x6a4 [ 82.176431][ T5519] vfs_link+0x5b4/0x744 [ 82.177008][ T5519] do_linkat+0x3dc/0x6f8 [ 82.177638][ T5519] __arm64_sys_linkat+0xe4/0x100 [ 82.178332][ T5519] invoke_syscall+0x98/0x2b8 [ 82.179029][ T5519] el0_svc_common+0x138/0x258 [ 82.179703][ T5519] do_el0_svc+0x58/0x14c [ 82.180299][ T5519] el0_svc+0x78/0x1e0 [ 82.180888][ T5519] el0t_64_sync_handler+0xcc/0xe4 [ 82.181630][ T5519] el0t_64_sync+0x1a0/0x1a4 [ 82.184014][ T5519] ------------[ cut here ]------------ [ 82.185048][ T5519] WARNING: CPU: 0 PID: 5519 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 82.186409][ T5519] Modules linked in: [ 82.186978][ T5519] CPU: 0 PID: 5519 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 82.188289][ T5519] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.189831][ T5519] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.190969][ T5519] pc : btrfs_add_link+0x6e8/0xa68 [ 82.191705][ T5519] lr : btrfs_add_link+0x6e8/0xa68 [ 82.192433][ T5519] sp : ffff800020e279e0 [ 82.193015][ T5519] x29: ffff800020e27ae0 x28: ffff0000df328420 x27: 0000000000000107 [ 82.194196][ T5519] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 82.195367][ T5519] x23: 0000000000000005 x22: 1fffe0001be6508f x21: ffff7000041c4f44 [ 82.196543][ T5519] x20: 00000000fffffff4 x19: ffff0000df328478 x18: 0000000000000001 [ 82.197710][ T5519] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 82.198951][ T5519] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 82.200185][ T5519] x11: 0000000000000000 x10: 0000000000000000 x9 : 3b7c6cbedc8e3b00 [ 82.201371][ T5519] x8 : 3b7c6cbedc8e3b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 82.202567][ T5519] x5 : ffff800020e272d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 82.203709][ T5519] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 82.204869][ T5519] Call trace: [ 82.205382][ T5519] btrfs_add_link+0x6e8/0xa68 [ 82.206137][ T5519] btrfs_link+0x3ac/0x6a4 [ 82.206793][ T5519] vfs_link+0x5b4/0x744 [ 82.207358][ T5519] do_linkat+0x3dc/0x6f8 [ 82.207980][ T5519] __arm64_sys_linkat+0xe4/0x100 [ 82.208734][ T5519] invoke_syscall+0x98/0x2b8 [ 82.209436][ T5519] el0_svc_common+0x138/0x258 [ 82.210117][ T5519] do_el0_svc+0x58/0x14c [ 82.210710][ T5519] el0_svc+0x78/0x1e0 [ 82.211265][ T5519] el0t_64_sync_handler+0xcc/0xe4 [ 82.211942][ T5519] el0t_64_sync+0x1a0/0x1a4 [ 82.212621][ T5519] irq event stamp: 80320 [ 82.213264][ T5519] hardirqs last enabled at (80319): [] __up_console_sem+0xb4/0x100 [ 82.214615][ T5519] hardirqs last disabled at (80320): [] el1_dbg+0x24/0x80 [ 82.215844][ T5519] softirqs last enabled at (80300): [] handle_softirqs+0xa4c/0xbf0 [ 82.217098][ T5519] softirqs last disabled at (80251): [] __irq_exit_rcu+0x240/0x440 [ 82.218499][ T5519] ---[ end trace 23f092da44d37641 ]--- [ 82.221422][ T5519] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 82.222900][ T5519] BTRFS info (device loop0): forced readonly [ 82.402845][ T5541] loop0: detected capacity change from 0 to 32768 [ 82.443493][ T5541] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.35 (5541) [ 82.446998][ T5541] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 82.448740][ T5541] BTRFS info (device loop0): metadata ratio 1025 [ 82.450094][ T5541] BTRFS info (device loop0): doing ref verification [ 82.451184][ T5541] BTRFS info (device loop0): force clearing of disk cache [ 82.452320][ T5541] BTRFS info (device loop0): turning off barriers [ 82.453332][ T5541] BTRFS info (device loop0): setting nodatacow, compression disabled [ 82.454595][ T5541] BTRFS info (device loop0): enabling ssd optimizations [ 82.455766][ T5541] BTRFS info (device loop0): using spread ssd allocation scheme [ 82.456864][ T5541] BTRFS info (device loop0): not using ssd optimizations [ 82.457876][ T5541] BTRFS info (device loop0): not using spread ssd allocation scheme [ 82.459045][ T5541] BTRFS info (device loop0): using free space tree [ 82.459976][ T5541] BTRFS info (device loop0): has skinny extents [ 82.467504][ T5541] BTRFS info (device loop0): clearing free space tree [ 82.468876][ T5541] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 82.470252][ T5541] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 82.473719][ T5541] BTRFS info (device loop0): creating free space tree [ 82.475131][ T5541] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 82.476797][ T5541] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 82.481845][ T5541] FAULT_INJECTION: forcing a failure. [ 82.481845][ T5541] name failslab, interval 1, probability 0, space 0, times 0 [ 82.483674][ T5541] CPU: 1 PID: 5541 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 82.484849][ T5541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.486268][ T5541] Call trace: [ 82.486737][ T5541] dump_backtrace+0x0/0x43c [ 82.487386][ T5541] show_stack+0x2c/0x3c [ 82.488003][ T5541] __dump_stack+0x30/0x40 [ 82.488684][ T5541] dump_stack_lvl+0xf8/0x160 [ 82.489324][ T5541] dump_stack+0x1c/0x5c [ 82.489971][ T5541] should_fail+0x3c0/0x51c [ 82.490591][ T5541] __should_failslab+0xbc/0x10c [ 82.491343][ T5541] should_failslab+0x10/0x28 [ 82.492032][ T5541] slab_pre_alloc_hook+0x64/0xec [ 82.492789][ T5541] kmem_cache_alloc+0x94/0x3e4 [ 82.493459][ T5541] btrfs_alloc_path+0x5c/0x68 [ 82.494124][ T5541] btrfs_insert_dir_item+0x16c/0x3b8 [ 82.494880][ T5541] btrfs_add_link+0x294/0xa68 [ 82.495570][ T5541] btrfs_link+0x3ac/0x6a4 [ 82.496169][ T5541] vfs_link+0x5b4/0x744 [ 82.496775][ T5541] do_linkat+0x3dc/0x6f8 [ 82.497401][ T5541] __arm64_sys_linkat+0xe4/0x100 [ 82.498092][ T5541] invoke_syscall+0x98/0x2b8 [ 82.498768][ T5541] el0_svc_common+0x138/0x258 [ 82.499428][ T5541] do_el0_svc+0x58/0x14c [ 82.500056][ T5541] el0_svc+0x78/0x1e0 [ 82.500621][ T5541] el0t_64_sync_handler+0xcc/0xe4 [ 82.501377][ T5541] el0t_64_sync+0x1a0/0x1a4 [ 82.502881][ T5541] ------------[ cut here ]------------ [ 82.503797][ T5541] WARNING: CPU: 1 PID: 5541 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 82.505008][ T5541] Modules linked in: [ 82.505536][ T5541] CPU: 1 PID: 5541 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 82.506687][ T5541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.508347][ T5541] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.509570][ T5541] pc : btrfs_add_link+0x6e8/0xa68 [ 82.510341][ T5541] lr : btrfs_add_link+0x6e8/0xa68 [ 82.511115][ T5541] sp : ffff8000219c79e0 [ 82.511746][ T5541] x29: ffff8000219c7ae0 x28: ffff0000df119840 x27: 0000000000000107 [ 82.512982][ T5541] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 82.514204][ T5541] x23: 0000000000000005 x22: 1fffe0001be23313 x21: ffff700004338f44 [ 82.515380][ T5541] x20: 00000000fffffff4 x19: ffff0000df119898 x18: 0000000000000001 [ 82.516554][ T5541] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 82.517711][ T5541] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 82.518883][ T5541] x11: 0000000000000000 x10: 0000000000000000 x9 : 50edc2a3d4a83900 [ 82.520123][ T5541] x8 : 50edc2a3d4a83900 x7 : 0000000000000001 x6 : 0000000000000001 [ 82.521358][ T5541] x5 : ffff8000219c72d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 82.522594][ T5541] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 82.523745][ T5541] Call trace: [ 82.524266][ T5541] btrfs_add_link+0x6e8/0xa68 [ 82.524935][ T5541] btrfs_link+0x3ac/0x6a4 [ 82.525552][ T5541] vfs_link+0x5b4/0x744 [ 82.526175][ T5541] do_linkat+0x3dc/0x6f8 [ 82.526766][ T5541] __arm64_sys_linkat+0xe4/0x100 [ 82.527420][ T5541] invoke_syscall+0x98/0x2b8 [ 82.528044][ T5541] el0_svc_common+0x138/0x258 [ 82.528672][ T5541] do_el0_svc+0x58/0x14c [ 82.529279][ T5541] el0_svc+0x78/0x1e0 [ 82.529881][ T5541] el0t_64_sync_handler+0xcc/0xe4 [ 82.530627][ T5541] el0t_64_sync+0x1a0/0x1a4 [ 82.531313][ T5541] irq event stamp: 80050 [ 82.531963][ T5541] hardirqs last enabled at (80049): [] __up_console_sem+0xb4/0x100 [ 82.533439][ T5541] hardirqs last disabled at (80050): [] el1_dbg+0x24/0x80 [ 82.534766][ T5541] softirqs last enabled at (80030): [] handle_softirqs+0xa4c/0xbf0 [ 82.536148][ T5541] softirqs last disabled at (80007): [] __irq_exit_rcu+0x240/0x440 [ 82.537504][ T5541] ---[ end trace 23f092da44d37642 ]--- [ 82.539205][ T5541] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 82.540622][ T5541] BTRFS info (device loop0): forced readonly [ 82.718540][ T5563] loop0: detected capacity change from 0 to 32768 [ 82.765973][ T5563] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.36 (5563) [ 82.771007][ T5563] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 82.772391][ T5563] BTRFS info (device loop0): metadata ratio 1025 [ 82.773418][ T5563] BTRFS info (device loop0): doing ref verification [ 82.774397][ T5563] BTRFS info (device loop0): force clearing of disk cache [ 82.775443][ T5563] BTRFS info (device loop0): turning off barriers [ 82.776399][ T5563] BTRFS info (device loop0): setting nodatacow, compression disabled [ 82.778580][ T5563] BTRFS info (device loop0): enabling ssd optimizations [ 82.779707][ T5563] BTRFS info (device loop0): using spread ssd allocation scheme [ 82.780812][ T5563] BTRFS info (device loop0): not using ssd optimizations [ 82.781863][ T5563] BTRFS info (device loop0): not using spread ssd allocation scheme [ 82.783040][ T5563] BTRFS info (device loop0): using free space tree [ 82.783995][ T5563] BTRFS info (device loop0): has skinny extents [ 82.795766][ T5563] BTRFS info (device loop0): clearing free space tree [ 82.796865][ T5563] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 82.799295][ T5563] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 82.802385][ T5563] BTRFS info (device loop0): creating free space tree [ 82.803720][ T5563] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 82.805238][ T5563] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 82.810252][ T5563] FAULT_INJECTION: forcing a failure. [ 82.810252][ T5563] name failslab, interval 1, probability 0, space 0, times 0 [ 82.812250][ T5563] CPU: 0 PID: 5563 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 82.813493][ T5563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 82.814908][ T5563] Call trace: [ 82.815350][ T5563] dump_backtrace+0x0/0x43c [ 82.815996][ T5563] show_stack+0x2c/0x3c [ 82.816618][ T5563] __dump_stack+0x30/0x40 [ 82.817248][ T5563] dump_stack_lvl+0xf8/0x160 [ 82.817935][ T5563] dump_stack+0x1c/0x5c [ 82.818516][ T5563] should_fail+0x3c0/0x51c [ 82.819175][ T5563] __should_failslab+0xbc/0x10c [ 82.819844][ T5563] should_failslab+0x10/0x28 [ 82.820478][ T5563] slab_pre_alloc_hook+0x64/0xec [ 82.821189][ T5563] kmem_cache_alloc+0x94/0x3e4 [ 82.821908][ T5563] btrfs_alloc_path+0x5c/0x68 [ 82.822580][ T5563] btrfs_insert_inode_ref+0xe8/0x9e0 [ 82.823315][ T5563] btrfs_add_link+0x22c/0xa68 [ 82.823996][ T5563] btrfs_link+0x3ac/0x6a4 [ 82.824640][ T5563] vfs_link+0x5b4/0x744 [ 82.825279][ T5563] do_linkat+0x3dc/0x6f8 [ 82.825870][ T5563] __arm64_sys_linkat+0xe4/0x100 [ 82.826650][ T5563] invoke_syscall+0x98/0x2b8 [ 82.827330][ T5563] el0_svc_common+0x138/0x258 [ 82.828047][ T5563] do_el0_svc+0x58/0x14c [ 82.828668][ T5563] el0_svc+0x78/0x1e0 [ 82.829218][ T5563] el0t_64_sync_handler+0xcc/0xe4 [ 82.829940][ T5563] el0t_64_sync+0x1a0/0x1a4 [ 82.973034][ T5585] loop0: detected capacity change from 0 to 32768 [ 82.998900][ T5585] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.37 (5585) [ 83.001887][ T5585] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 83.003333][ T5585] BTRFS info (device loop0): metadata ratio 1025 [ 83.004411][ T5585] BTRFS info (device loop0): doing ref verification [ 83.005441][ T5585] BTRFS info (device loop0): force clearing of disk cache [ 83.006507][ T5585] BTRFS info (device loop0): turning off barriers [ 83.007472][ T5585] BTRFS info (device loop0): setting nodatacow, compression disabled [ 83.009276][ T5585] BTRFS info (device loop0): enabling ssd optimizations [ 83.010330][ T5585] BTRFS info (device loop0): using spread ssd allocation scheme [ 83.011567][ T5585] BTRFS info (device loop0): not using ssd optimizations [ 83.012652][ T5585] BTRFS info (device loop0): not using spread ssd allocation scheme [ 83.013813][ T5585] BTRFS info (device loop0): using free space tree [ 83.014730][ T5585] BTRFS info (device loop0): has skinny extents [ 83.024258][ T5585] BTRFS info (device loop0): clearing free space tree [ 83.025465][ T5585] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 83.027043][ T5585] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 83.031306][ T5585] BTRFS info (device loop0): creating free space tree [ 83.032625][ T5585] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 83.034144][ T5585] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 83.039081][ T5585] FAULT_INJECTION: forcing a failure. [ 83.039081][ T5585] name failslab, interval 1, probability 0, space 0, times 0 [ 83.041077][ T5585] CPU: 0 PID: 5585 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 83.042472][ T5585] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.044118][ T5585] Call trace: [ 83.044597][ T5585] dump_backtrace+0x0/0x43c [ 83.045268][ T5585] show_stack+0x2c/0x3c [ 83.045868][ T5585] __dump_stack+0x30/0x40 [ 83.046459][ T5585] dump_stack_lvl+0xf8/0x160 [ 83.047149][ T5585] dump_stack+0x1c/0x5c [ 83.047683][ T5585] should_fail+0x3c0/0x51c [ 83.048306][ T5585] __should_failslab+0xbc/0x10c [ 83.048992][ T5585] should_failslab+0x10/0x28 [ 83.049682][ T5585] slab_pre_alloc_hook+0x64/0xec [ 83.050440][ T5585] kmem_cache_alloc+0x94/0x3e4 [ 83.051079][ T5585] btrfs_alloc_path+0x5c/0x68 [ 83.051749][ T5585] btrfs_insert_inode_ref+0xe8/0x9e0 [ 83.052530][ T5585] btrfs_add_link+0x22c/0xa68 [ 83.053211][ T5585] btrfs_link+0x3ac/0x6a4 [ 83.053875][ T5585] vfs_link+0x5b4/0x744 [ 83.054475][ T5585] do_linkat+0x3dc/0x6f8 [ 83.055081][ T5585] __arm64_sys_linkat+0xe4/0x100 [ 83.055824][ T5585] invoke_syscall+0x98/0x2b8 [ 83.056479][ T5585] el0_svc_common+0x138/0x258 [ 83.057123][ T5585] do_el0_svc+0x58/0x14c [ 83.057749][ T5585] el0_svc+0x78/0x1e0 [ 83.058353][ T5585] el0t_64_sync_handler+0xcc/0xe4 [ 83.059082][ T5585] el0t_64_sync+0x1a0/0x1a4 [ 83.208756][ T5607] loop0: detected capacity change from 0 to 32768 [ 83.215948][ T5607] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.38 (5607) [ 83.220833][ T5607] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 83.222352][ T5607] BTRFS info (device loop0): metadata ratio 1025 [ 83.223340][ T5607] BTRFS info (device loop0): doing ref verification [ 83.224445][ T5607] BTRFS info (device loop0): force clearing of disk cache [ 83.225733][ T5607] BTRFS info (device loop0): turning off barriers [ 83.226853][ T5607] BTRFS info (device loop0): setting nodatacow, compression disabled [ 83.228615][ T5607] BTRFS info (device loop0): enabling ssd optimizations [ 83.229626][ T5607] BTRFS info (device loop0): using spread ssd allocation scheme [ 83.230759][ T5607] BTRFS info (device loop0): not using ssd optimizations [ 83.231803][ T5607] BTRFS info (device loop0): not using spread ssd allocation scheme [ 83.232973][ T5607] BTRFS info (device loop0): using free space tree [ 83.233922][ T5607] BTRFS info (device loop0): has skinny extents [ 83.257046][ T5607] BTRFS info (device loop0): clearing free space tree [ 83.258283][ T5607] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 83.259846][ T5607] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 83.262840][ T5607] BTRFS info (device loop0): creating free space tree [ 83.264286][ T5607] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 83.265709][ T5607] BTRFS info (device loop0): setting compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 83.270375][ T5607] FAULT_INJECTION: forcing a failure. [ 83.270375][ T5607] name failslab, interval 1, probability 0, space 0, times 0 [ 83.272344][ T5607] CPU: 1 PID: 5607 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 83.273522][ T5607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.275178][ T5607] Call trace: [ 83.275731][ T5607] dump_backtrace+0x0/0x43c [ 83.276438][ T5607] show_stack+0x2c/0x3c [ 83.277132][ T5607] __dump_stack+0x30/0x40 [ 83.277813][ T5607] dump_stack_lvl+0xf8/0x160 [ 83.278486][ T5607] dump_stack+0x1c/0x5c [ 83.279036][ T5607] should_fail+0x3c0/0x51c [ 83.279698][ T5607] __should_failslab+0xbc/0x10c [ 83.280427][ T5607] should_failslab+0x10/0x28 [ 83.281191][ T5607] slab_pre_alloc_hook+0x64/0xec [ 83.281961][ T5607] kmem_cache_alloc+0x94/0x3e4 [ 83.282736][ T5607] btrfs_alloc_path+0x5c/0x68 [ 83.283476][ T5607] btrfs_insert_dir_item+0x16c/0x3b8 [ 83.284239][ T5607] btrfs_add_link+0x294/0xa68 [ 83.284925][ T5607] btrfs_link+0x3ac/0x6a4 [ 83.285605][ T5607] vfs_link+0x5b4/0x744 [ 83.286185][ T5607] do_linkat+0x3dc/0x6f8 [ 83.286776][ T5607] __arm64_sys_linkat+0xe4/0x100 [ 83.287457][ T5607] invoke_syscall+0x98/0x2b8 [ 83.288138][ T5607] el0_svc_common+0x138/0x258 [ 83.288783][ T5607] do_el0_svc+0x58/0x14c [ 83.289456][ T5607] el0_svc+0x78/0x1e0 [ 83.290035][ T5607] el0t_64_sync_handler+0xcc/0xe4 [ 83.290709][ T5607] el0t_64_sync+0x1a0/0x1a4 [ 83.298131][ T5607] ------------[ cut here ]------------ [ 83.299200][ T5607] WARNING: CPU: 0 PID: 5607 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 83.300580][ T5607] Modules linked in: [ 83.301171][ T5607] CPU: 0 PID: 5607 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 83.302512][ T5607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.303917][ T5607] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.305051][ T5607] pc : btrfs_add_link+0x6e8/0xa68 [ 83.305809][ T5607] lr : btrfs_add_link+0x6e8/0xa68 [ 83.306508][ T5607] sp : ffff800021d079e0 [ 83.307064][ T5607] x29: ffff800021d07ae0 x28: ffff0000df1192c0 x27: 0000000000000107 [ 83.308174][ T5607] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 83.309357][ T5607] x23: 0000000000000005 x22: 1fffe0001be23263 x21: ffff7000043a0f44 [ 83.310498][ T5607] x20: 00000000fffffff4 x19: ffff0000df119318 x18: 0000000000000001 [ 83.311691][ T5607] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 83.312963][ T5607] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 83.314077][ T5607] x11: 0000000000000000 x10: 0000000000000000 x9 : 0149c3a70c752a00 [ 83.315168][ T5607] x8 : 0149c3a70c752a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.316328][ T5607] x5 : ffff800021d072d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 83.317564][ T5607] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.318707][ T5607] Call trace: [ 83.319193][ T5607] btrfs_add_link+0x6e8/0xa68 [ 83.319912][ T5607] btrfs_link+0x3ac/0x6a4 [ 83.320592][ T5607] vfs_link+0x5b4/0x744 [ 83.321230][ T5607] do_linkat+0x3dc/0x6f8 [ 83.321847][ T5607] __arm64_sys_linkat+0xe4/0x100 [ 83.322539][ T5607] invoke_syscall+0x98/0x2b8 [ 83.323221][ T5607] el0_svc_common+0x138/0x258 [ 83.323938][ T5607] do_el0_svc+0x58/0x14c [ 83.324598][ T5607] el0_svc+0x78/0x1e0 [ 83.325202][ T5607] el0t_64_sync_handler+0xcc/0xe4 [ 83.325956][ T5607] el0t_64_sync+0x1a0/0x1a4 [ 83.326647][ T5607] irq event stamp: 80512 [ 83.327254][ T5607] hardirqs last enabled at (80511): [] __up_console_sem+0xb4/0x100 [ 83.328652][ T5607] hardirqs last disabled at (80512): [] el1_dbg+0x24/0x80 [ 83.329936][ T5607] softirqs last enabled at (80492): [] handle_softirqs+0xa4c/0xbf0 [ 83.331330][ T5607] softirqs last disabled at (80395): [] __irq_exit_rcu+0x240/0x440 [ 83.332746][ T5607] ---[ end trace 23f092da44d37643 ]--- [ 83.334543][ T5607] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 83.335843][ T5607] BTRFS info (device loop0): forced readonly [ 83.505870][ T5629] loop0: detected capacity change from 0 to 32768 [ 83.510574][ T5629] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.39 (5629) [ 83.514517][ T5629] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 83.515853][ T5629] BTRFS info (device loop0): metadata ratio 1025 [ 83.516877][ T5629] BTRFS info (device loop0): doing ref verification [ 83.518650][ T5629] BTRFS info (device loop0): force clearing of disk cache [ 83.519705][ T5629] BTRFS info (device loop0): turning off barriers [ 83.520659][ T5629] BTRFS info (device loop0): setting nodatacow, compression disabled [ 83.532275][ T5629] FAULT_INJECTION: forcing a failure. [ 83.532275][ T5629] name failslab, interval 1, probability 0, space 0, times 0 [ 83.534298][ T5629] CPU: 0 PID: 5629 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 83.535511][ T5629] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.537017][ T5629] Call trace: [ 83.537447][ T5629] dump_backtrace+0x0/0x43c [ 83.538090][ T5629] show_stack+0x2c/0x3c [ 83.538750][ T5629] __dump_stack+0x30/0x40 [ 83.539400][ T5629] dump_stack_lvl+0xf8/0x160 [ 83.540053][ T5629] dump_stack+0x1c/0x5c [ 83.540689][ T5629] should_fail+0x3c0/0x51c [ 83.541322][ T5629] __should_failslab+0xbc/0x10c [ 83.542044][ T5629] should_failslab+0x10/0x28 [ 83.542689][ T5629] slab_pre_alloc_hook+0x64/0xec [ 83.543401][ T5629] kmem_cache_alloc+0x94/0x3e4 [ 83.544055][ T5629] btrfs_alloc_path+0x5c/0x68 [ 83.544716][ T5629] btrfs_insert_dir_item+0x16c/0x3b8 [ 83.545492][ T5629] btrfs_add_link+0x294/0xa68 [ 83.546154][ T5629] btrfs_link+0x3ac/0x6a4 [ 83.546776][ T5629] vfs_link+0x5b4/0x744 [ 83.547382][ T5629] do_linkat+0x3dc/0x6f8 [ 83.548028][ T5629] __arm64_sys_linkat+0xe4/0x100 [ 83.548778][ T5629] invoke_syscall+0x98/0x2b8 [ 83.549448][ T5629] el0_svc_common+0x138/0x258 [ 83.550196][ T5629] do_el0_svc+0x58/0x14c [ 83.550822][ T5629] el0_svc+0x78/0x1e0 [ 83.551396][ T5629] el0t_64_sync_handler+0xcc/0xe4 [ 83.552140][ T5629] el0t_64_sync+0x1a0/0x1a4 [ 83.554395][ T5629] ------------[ cut here ]------------ [ 83.555356][ T5629] WARNING: CPU: 0 PID: 5629 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 83.556701][ T5629] Modules linked in: [ 83.557264][ T5629] CPU: 0 PID: 5629 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 83.558605][ T5629] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.560102][ T5629] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.561285][ T5629] pc : btrfs_add_link+0x6e8/0xa68 [ 83.562020][ T5629] lr : btrfs_add_link+0x6e8/0xa68 [ 83.562724][ T5629] sp : ffff800021e079e0 [ 83.563322][ T5629] x29: ffff800021e07ae0 x28: ffff0000df328c60 x27: 0000000000000107 [ 83.564529][ T5629] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 83.565720][ T5629] x23: 0000000000000005 x22: 1fffe0001be65197 x21: ffff7000043c0f44 [ 83.566845][ T5629] x20: 00000000fffffff4 x19: ffff0000df328cb8 x18: 0000000000000001 [ 83.568054][ T5629] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 83.569265][ T5629] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 83.570475][ T5629] x11: 0000000000000000 x10: 0000000000000000 x9 : 52c3777c1a295100 [ 83.571662][ T5629] x8 : 52c3777c1a295100 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.572741][ T5629] x5 : ffff800021e072d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 83.573935][ T5629] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.575151][ T5629] Call trace: [ 83.575603][ T5629] btrfs_add_link+0x6e8/0xa68 [ 83.576263][ T5629] btrfs_link+0x3ac/0x6a4 [ 83.576880][ T5629] vfs_link+0x5b4/0x744 [ 83.577469][ T5629] do_linkat+0x3dc/0x6f8 [ 83.578099][ T5629] __arm64_sys_linkat+0xe4/0x100 [ 83.578796][ T5629] invoke_syscall+0x98/0x2b8 [ 83.579461][ T5629] el0_svc_common+0x138/0x258 [ 83.580102][ T5629] do_el0_svc+0x58/0x14c [ 83.580719][ T5629] el0_svc+0x78/0x1e0 [ 83.581242][ T5629] el0t_64_sync_handler+0xcc/0xe4 [ 83.581937][ T5629] el0t_64_sync+0x1a0/0x1a4 [ 83.582570][ T5629] irq event stamp: 79904 [ 83.583160][ T5629] hardirqs last enabled at (79903): [] __up_console_sem+0xb4/0x100 [ 83.584503][ T5629] hardirqs last disabled at (79904): [] el1_dbg+0x24/0x80 [ 83.585672][ T5629] softirqs last enabled at (79884): [] handle_softirqs+0xa4c/0xbf0 [ 83.586932][ T5629] softirqs last disabled at (79859): [] __irq_exit_rcu+0x240/0x440 [ 83.588200][ T5629] ---[ end trace 23f092da44d37644 ]--- [ 83.589325][ T5629] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 83.687698][ T4166] Bluetooth: hci0: command 0x0419 tx timeout [ 83.766895][ T5650] loop0: detected capacity change from 0 to 32768 [ 83.812019][ T5650] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.40 (5650) [ 83.837030][ T5650] FAULT_INJECTION: forcing a failure. [ 83.837030][ T5650] name failslab, interval 1, probability 0, space 0, times 0 [ 83.839624][ T5650] CPU: 0 PID: 5650 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 83.840859][ T5650] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.842490][ T5650] Call trace: [ 83.842962][ T5650] dump_backtrace+0x0/0x43c [ 83.843653][ T5650] show_stack+0x2c/0x3c [ 83.844255][ T5650] __dump_stack+0x30/0x40 [ 83.844883][ T5650] dump_stack_lvl+0xf8/0x160 [ 83.845597][ T5650] dump_stack+0x1c/0x5c [ 83.846204][ T5650] should_fail+0x3c0/0x51c [ 83.846842][ T5650] __should_failslab+0xbc/0x10c [ 83.847546][ T5650] should_failslab+0x10/0x28 [ 83.848250][ T5650] slab_pre_alloc_hook+0x64/0xec [ 83.848973][ T5650] kmem_cache_alloc+0x94/0x3e4 [ 83.849699][ T5650] btrfs_alloc_path+0x5c/0x68 [ 83.850388][ T5650] btrfs_insert_dir_item+0x16c/0x3b8 [ 83.851123][ T5650] btrfs_add_link+0x294/0xa68 [ 83.851799][ T5650] btrfs_link+0x3ac/0x6a4 [ 83.852396][ T5650] vfs_link+0x5b4/0x744 [ 83.853007][ T5650] do_linkat+0x3dc/0x6f8 [ 83.853599][ T5650] __arm64_sys_linkat+0xe4/0x100 [ 83.854306][ T5650] invoke_syscall+0x98/0x2b8 [ 83.854972][ T5650] el0_svc_common+0x138/0x258 [ 83.855644][ T5650] do_el0_svc+0x58/0x14c [ 83.856259][ T5650] el0_svc+0x78/0x1e0 [ 83.856840][ T5650] el0t_64_sync_handler+0xcc/0xe4 [ 83.857641][ T5650] el0t_64_sync+0x1a0/0x1a4 [ 83.860425][ T5650] ------------[ cut here ]------------ [ 83.861389][ T5650] WARNING: CPU: 0 PID: 5650 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 83.862743][ T5650] Modules linked in: [ 83.863265][ T5650] CPU: 0 PID: 5650 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 83.864468][ T5650] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 83.865910][ T5650] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.867017][ T5650] pc : btrfs_add_link+0x6e8/0xa68 [ 83.867724][ T5650] lr : btrfs_add_link+0x6e8/0xa68 [ 83.868463][ T5650] sp : ffff800021e079e0 [ 83.869063][ T5650] x29: ffff800021e07ae0 x28: ffff0000df328f20 x27: 0000000000000107 [ 83.870290][ T5650] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 83.871476][ T5650] x23: 0000000000000005 x22: 1fffe0001be651ef x21: ffff7000043c0f44 [ 83.872700][ T5650] x20: 00000000fffffff4 x19: ffff0000df328f78 x18: 0000000000000001 [ 83.873821][ T5650] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 83.874962][ T5650] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 83.876150][ T5650] x11: 0000000000000000 x10: 0000000000000000 x9 : 496b81c46bfe7400 [ 83.877337][ T5650] x8 : 496b81c46bfe7400 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.878471][ T5650] x5 : ffff800021e072d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 83.879626][ T5650] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.880811][ T5650] Call trace: [ 83.881260][ T5650] btrfs_add_link+0x6e8/0xa68 [ 83.881941][ T5650] btrfs_link+0x3ac/0x6a4 [ 83.882576][ T5650] vfs_link+0x5b4/0x744 [ 83.883213][ T5650] do_linkat+0x3dc/0x6f8 [ 83.883768][ T5650] __arm64_sys_linkat+0xe4/0x100 [ 83.884502][ T5650] invoke_syscall+0x98/0x2b8 [ 83.885168][ T5650] el0_svc_common+0x138/0x258 [ 83.885929][ T5650] do_el0_svc+0x58/0x14c [ 83.886549][ T5650] el0_svc+0x78/0x1e0 [ 83.887166][ T5650] el0t_64_sync_handler+0xcc/0xe4 [ 83.887921][ T5650] el0t_64_sync+0x1a0/0x1a4 [ 83.888613][ T5650] irq event stamp: 80054 [ 83.889234][ T5650] hardirqs last enabled at (80053): [] __up_console_sem+0xb4/0x100 [ 83.890658][ T5650] hardirqs last disabled at (80054): [] el1_dbg+0x24/0x80 [ 83.891992][ T5650] softirqs last enabled at (80034): [] handle_softirqs+0xa4c/0xbf0 [ 83.893300][ T5650] softirqs last disabled at (79981): [] __irq_exit_rcu+0x240/0x440 [ 83.894643][ T5650] ---[ end trace 23f092da44d37645 ]--- [ 83.896061][ T5650] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 84.031015][ T5672] loop0: detected capacity change from 0 to 32768 [ 84.068946][ T5672] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.41 (5672) [ 84.132585][ T5672] FAULT_INJECTION: forcing a failure. [ 84.132585][ T5672] name failslab, interval 1, probability 0, space 0, times 0 [ 84.134753][ T5672] CPU: 0 PID: 5672 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 84.136012][ T5672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.137458][ T5672] Call trace: [ 84.137901][ T5672] dump_backtrace+0x0/0x43c [ 84.138561][ T5672] show_stack+0x2c/0x3c [ 84.139153][ T5672] __dump_stack+0x30/0x40 [ 84.139766][ T5672] dump_stack_lvl+0xf8/0x160 [ 84.140434][ T5672] dump_stack+0x1c/0x5c [ 84.141018][ T5672] should_fail+0x3c0/0x51c [ 84.141676][ T5672] __should_failslab+0xbc/0x10c [ 84.142395][ T5672] should_failslab+0x10/0x28 [ 84.143070][ T5672] slab_pre_alloc_hook+0x64/0xec [ 84.143784][ T5672] kmem_cache_alloc+0x94/0x3e4 [ 84.144541][ T5672] start_transaction+0x4d0/0x13f0 [ 84.145315][ T5672] btrfs_start_transaction+0x34/0x44 [ 84.146026][ T5672] btrfs_link+0x1f0/0x6a4 [ 84.146667][ T5672] vfs_link+0x5b4/0x744 [ 84.147300][ T5672] do_linkat+0x3dc/0x6f8 [ 84.147880][ T5672] __arm64_sys_linkat+0xe4/0x100 [ 84.148580][ T5672] invoke_syscall+0x98/0x2b8 [ 84.149210][ T5672] el0_svc_common+0x138/0x258 [ 84.149902][ T5672] do_el0_svc+0x58/0x14c [ 84.150492][ T5672] el0_svc+0x78/0x1e0 [ 84.151064][ T5672] el0t_64_sync_handler+0xcc/0xe4 [ 84.151756][ T5672] el0t_64_sync+0x1a0/0x1a4 [ 84.305498][ T5694] loop0: detected capacity change from 0 to 32768 [ 84.312791][ T5694] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.42 (5694) [ 84.331061][ T5694] FAULT_INJECTION: forcing a failure. [ 84.331061][ T5694] name failslab, interval 1, probability 0, space 0, times 0 [ 84.333116][ T5694] CPU: 1 PID: 5694 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 84.334326][ T5694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.335770][ T5694] Call trace: [ 84.336219][ T5694] dump_backtrace+0x0/0x43c [ 84.336842][ T5694] show_stack+0x2c/0x3c [ 84.337484][ T5694] __dump_stack+0x30/0x40 [ 84.338146][ T5694] dump_stack_lvl+0xf8/0x160 [ 84.338771][ T5694] dump_stack+0x1c/0x5c [ 84.339372][ T5694] should_fail+0x3c0/0x51c [ 84.339998][ T5694] __should_failslab+0xbc/0x10c [ 84.340703][ T5694] should_failslab+0x10/0x28 [ 84.341382][ T5694] slab_pre_alloc_hook+0x64/0xec [ 84.342102][ T5694] kmem_cache_alloc+0x94/0x3e4 [ 84.342793][ T5694] btrfs_alloc_path+0x5c/0x68 [ 84.343472][ T5694] btrfs_insert_dir_item+0x16c/0x3b8 [ 84.344254][ T5694] btrfs_add_link+0x294/0xa68 [ 84.344904][ T5694] btrfs_link+0x3ac/0x6a4 [ 84.345518][ T5694] vfs_link+0x5b4/0x744 [ 84.346159][ T5694] do_linkat+0x3dc/0x6f8 [ 84.346722][ T5694] __arm64_sys_linkat+0xe4/0x100 [ 84.347556][ T5694] invoke_syscall+0x98/0x2b8 [ 84.348330][ T5694] el0_svc_common+0x138/0x258 [ 84.349096][ T5694] do_el0_svc+0x58/0x14c [ 84.349746][ T5694] el0_svc+0x78/0x1e0 [ 84.350357][ T5694] el0t_64_sync_handler+0xcc/0xe4 [ 84.351131][ T5694] el0t_64_sync+0x1a0/0x1a4 [ 84.353238][ T5694] ------------[ cut here ]------------ [ 84.354179][ T5694] WARNING: CPU: 1 PID: 5694 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 84.355356][ T5694] Modules linked in: [ 84.355909][ T5694] CPU: 1 PID: 5694 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 84.357103][ T5694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.358522][ T5694] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 84.359644][ T5694] pc : btrfs_add_link+0x6e8/0xa68 [ 84.360385][ T5694] lr : btrfs_add_link+0x6e8/0xa68 [ 84.361112][ T5694] sp : ffff8000220779e0 [ 84.361764][ T5694] x29: ffff800022077ae0 x28: ffff0000df119f20 x27: 0000000000000107 [ 84.362944][ T5694] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 84.364158][ T5694] x23: 0000000000000005 x22: 1fffe0001be233ef x21: ffff70000440ef44 [ 84.365374][ T5694] x20: 00000000fffffff4 x19: ffff0000df119f78 x18: 0000000000000001 [ 84.366548][ T5694] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 84.367642][ T5694] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 84.368922][ T5694] x11: 0000000000000000 x10: 0000000000000000 x9 : 4ff2531ae899ff00 [ 84.370184][ T5694] x8 : 4ff2531ae899ff00 x7 : 0000000000000001 x6 : 0000000000000001 [ 84.371403][ T5694] x5 : ffff8000220772d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 84.372540][ T5694] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 84.373767][ T5694] Call trace: [ 84.374257][ T5694] btrfs_add_link+0x6e8/0xa68 [ 84.374957][ T5694] btrfs_link+0x3ac/0x6a4 [ 84.375608][ T5694] vfs_link+0x5b4/0x744 [ 84.376211][ T5694] do_linkat+0x3dc/0x6f8 [ 84.376836][ T5694] __arm64_sys_linkat+0xe4/0x100 [ 84.377562][ T5694] invoke_syscall+0x98/0x2b8 [ 84.378207][ T5694] el0_svc_common+0x138/0x258 [ 84.378834][ T5694] do_el0_svc+0x58/0x14c [ 84.379465][ T5694] el0_svc+0x78/0x1e0 [ 84.380024][ T5694] el0t_64_sync_handler+0xcc/0xe4 [ 84.380751][ T5694] el0t_64_sync+0x1a0/0x1a4 [ 84.381398][ T5694] irq event stamp: 80200 [ 84.381979][ T5694] hardirqs last enabled at (80199): [] __up_console_sem+0xb4/0x100 [ 84.383413][ T5694] hardirqs last disabled at (80200): [] el1_dbg+0x24/0x80 [ 84.384668][ T5694] softirqs last enabled at (80180): [] handle_softirqs+0xa4c/0xbf0 [ 84.386138][ T5694] softirqs last disabled at (80169): [] __irq_exit_rcu+0x240/0x440 [ 84.387527][ T5694] ---[ end trace 23f092da44d37646 ]--- [ 84.390206][ T5694] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 84.530800][ T5716] loop0: detected capacity change from 0 to 32768 [ 84.609110][ T5716] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.43 (5716) [ 84.669469][ T5716] FAULT_INJECTION: forcing a failure. [ 84.669469][ T5716] name failslab, interval 1, probability 0, space 0, times 0 [ 84.671402][ T5716] CPU: 0 PID: 5716 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 84.672611][ T5716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.674129][ T5716] Call trace: [ 84.674602][ T5716] dump_backtrace+0x0/0x43c [ 84.675273][ T5716] show_stack+0x2c/0x3c [ 84.675867][ T5716] __dump_stack+0x30/0x40 [ 84.676518][ T5716] dump_stack_lvl+0xf8/0x160 [ 84.677221][ T5716] dump_stack+0x1c/0x5c [ 84.677840][ T5716] should_fail+0x3c0/0x51c [ 84.678493][ T5716] __should_failslab+0xbc/0x10c [ 84.679192][ T5716] should_failslab+0x10/0x28 [ 84.679885][ T5716] slab_pre_alloc_hook+0x64/0xec [ 84.680634][ T5716] kmem_cache_alloc+0x94/0x3e4 [ 84.681312][ T5716] btrfs_alloc_path+0x5c/0x68 [ 84.681974][ T5716] btrfs_insert_dir_item+0x16c/0x3b8 [ 84.682754][ T5716] btrfs_add_link+0x294/0xa68 [ 84.683414][ T5716] btrfs_link+0x3ac/0x6a4 [ 84.684033][ T5716] vfs_link+0x5b4/0x744 [ 84.684592][ T5716] do_linkat+0x3dc/0x6f8 [ 84.685213][ T5716] __arm64_sys_linkat+0xe4/0x100 [ 84.685929][ T5716] invoke_syscall+0x98/0x2b8 [ 84.686552][ T5716] el0_svc_common+0x138/0x258 [ 84.687237][ T5716] do_el0_svc+0x58/0x14c [ 84.687794][ T5716] el0_svc+0x78/0x1e0 [ 84.688381][ T5716] el0t_64_sync_handler+0xcc/0xe4 [ 84.689029][ T5716] el0t_64_sync+0x1a0/0x1a4 [ 84.690254][ T5716] ------------[ cut here ]------------ [ 84.691173][ T5716] WARNING: CPU: 0 PID: 5716 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 84.692477][ T5716] Modules linked in: [ 84.692966][ T5716] CPU: 0 PID: 5716 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 84.694267][ T5716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.695753][ T5716] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 84.696936][ T5716] pc : btrfs_add_link+0x6e8/0xa68 [ 84.697622][ T5716] lr : btrfs_add_link+0x6e8/0xa68 [ 84.698337][ T5716] sp : ffff8000222579e0 [ 84.699003][ T5716] x29: ffff800022257ae0 x28: ffff0000df2baa50 x27: 0000000000000107 [ 84.700264][ T5716] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 84.701463][ T5716] x23: 0000000000000005 x22: 1fffe0001be57555 x21: ffff70000444af44 [ 84.702668][ T5716] x20: 00000000fffffff4 x19: ffff0000df2baaa8 x18: 0000000000000001 [ 84.703869][ T5716] x17: 0000000000000000 x16: ffff800008302164 x15: 00000000ffffffff [ 84.705093][ T5716] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 84.706303][ T5716] x11: 0000000000000000 x10: 0000000000000000 x9 : 0fd12a7957861c00 [ 84.707520][ T5716] x8 : 0fd12a7957861c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 84.708720][ T5716] x5 : ffff8000222572d8 x4 : ffff8000141ff5a0 x3 : ffff800008302274 [ 84.709918][ T5716] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 84.711144][ T5716] Call trace: [ 84.711600][ T5716] btrfs_add_link+0x6e8/0xa68 [ 84.712300][ T5716] btrfs_link+0x3ac/0x6a4 [ 84.712886][ T5716] vfs_link+0x5b4/0x744 [ 84.713466][ T5716] do_linkat+0x3dc/0x6f8 [ 84.714084][ T5716] __arm64_sys_linkat+0xe4/0x100 [ 84.714821][ T5716] invoke_syscall+0x98/0x2b8 [ 84.715513][ T5716] el0_svc_common+0x138/0x258 [ 84.716198][ T5716] do_el0_svc+0x58/0x14c [ 84.716805][ T5716] el0_svc+0x78/0x1e0 [ 84.717395][ T5716] el0t_64_sync_handler+0xcc/0xe4 [ 84.718162][ T5716] el0t_64_sync+0x1a0/0x1a4 [ 84.718787][ T5716] irq event stamp: 80040 [ 84.719440][ T5716] hardirqs last enabled at (80039): [] __up_console_sem+0xb4/0x100 [ 84.720779][ T5716] hardirqs last disabled at (80040): [] el1_dbg+0x24/0x80 [ 84.722077][ T5716] softirqs last enabled at (80020): [] handle_softirqs+0xa4c/0xbf0 [ 84.723401][ T5716] softirqs last disabled at (80001): [] __irq_exit_rcu+0x240/0x440 [ 84.724663][ T5716] ---[ end trace 23f092da44d37647 ]--- [ 84.725766][ T5716] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 84.867764][ T5738] loop0: detected capacity change from 0 to 32768 [ 84.909157][ T5738] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.44 (5738) [ 84.972834][ T5738] FAULT_INJECTION: forcing a failure. [ 84.972834][ T5738] name failslab, interval 1, probability 0, space 0, times 0 [ 84.974929][ T5738] CPU: 1 PID: 5738 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 84.976358][ T5738] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 84.977953][ T5738] Call trace: [ 84.978464][ T5738] dump_backtrace+0x0/0x43c [ 84.979181][ T5738] show_stack+0x2c/0x3c [ 84.979876][ T5738] __dump_stack+0x30/0x40 [ 84.980501][ T5738] dump_stack_lvl+0xf8/0x160 [ 84.981202][ T5738] dump_stack+0x1c/0x5c [ 84.981799][ T5738] should_fail+0x3c0/0x51c [ 84.982413][ T5738] __should_failslab+0xbc/0x10c [ 84.983138][ T5738] should_failslab+0x10/0x28 [ 84.983782][ T5738] slab_pre_alloc_hook+0x64/0xec [ 84.984486][ T5738] kmem_cache_alloc+0x94/0x3e4 [ 84.985150][ T5738] btrfs_alloc_path+0x5c/0x68 [ 84.985832][ T5738] btrfs_insert_dir_item+0x16c/0x3b8 [ 84.986654][ T5738] btrfs_add_link+0x294/0xa68 [ 84.987301][ T5738] btrfs_link+0x3ac/0x6a4 [ 84.987887][ T5738] vfs_link+0x5b4/0x744 [ 84.988478][ T5738] do_linkat+0x3dc/0x6f8 [ 84.989069][ T5738] __arm64_sys_linkat+0xe4/0x100 [ 84.989777][ T5738] invoke_syscall+0x98/0x2b8 [ 84.990467][ T5738] el0_svc_common+0x138/0x258 [ 84.991189][ T5738] do_el0_svc+0x58/0x14c [ 84.991796][ T5738] el0_svc+0x78/0x1e0 [ 84.992367][ T5738] el0t_64_sync_handler+0xcc/0xe4 [ 84.993091][ T5738] el0t_64_sync+0x1a0/0x1a4 [ 84.994010][ T5738] ------------[ cut here ]------------ [ 84.996344][ T5738] WARNING: CPU: 1 PID: 5738 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 84.997695][ T5738] Modules linked in: [ 84.998310][ T5738] CPU: 1 PID: 5738 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 84.999576][ T5738] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.001090][ T5738] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 85.002228][ T5738] pc : btrfs_add_link+0x6e8/0xa68 [ 85.003003][ T5738] lr : btrfs_add_link+0x6e8/0xa68 [ 85.003750][ T5738] sp : ffff8000223779e0 [ 85.004342][ T5738] x29: ffff800022377ae0 x28: ffff0000df119c60 x27: 0000000000000107 [ 85.005516][ T5738] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 85.006670][ T5738] x23: 0000000000000005 x22: 1fffe0001be23397 x21: ffff70000446ef44 [ 85.007895][ T5738] x20: 00000000fffffff4 x19: ffff0000df119cb8 x18: 0000000000000001 [ 85.009058][ T5738] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 85.010231][ T5738] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 85.011368][ T5738] x11: 0000000000000000 x10: 0000000000000000 x9 : 8a844b154042c000 [ 85.012505][ T5738] x8 : 8a844b154042c000 x7 : 0000000000000001 x6 : 0000000000000001 [ 85.013663][ T5738] x5 : ffff8000223772d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 85.014775][ T5738] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 85.015954][ T5738] Call trace: [ 85.016427][ T5738] btrfs_add_link+0x6e8/0xa68 [ 85.017099][ T5738] btrfs_link+0x3ac/0x6a4 [ 85.017717][ T5738] vfs_link+0x5b4/0x744 [ 85.018304][ T5738] do_linkat+0x3dc/0x6f8 [ 85.018957][ T5738] __arm64_sys_linkat+0xe4/0x100 [ 85.019664][ T5738] invoke_syscall+0x98/0x2b8 [ 85.020322][ T5738] el0_svc_common+0x138/0x258 [ 85.021001][ T5738] do_el0_svc+0x58/0x14c [ 85.021622][ T5738] el0_svc+0x78/0x1e0 [ 85.022140][ T5738] el0t_64_sync_handler+0xcc/0xe4 [ 85.022865][ T5738] el0t_64_sync+0x1a0/0x1a4 [ 85.023541][ T5738] irq event stamp: 79948 [ 85.024185][ T5738] hardirqs last enabled at (79947): [] __up_console_sem+0xb4/0x100 [ 85.025562][ T5738] hardirqs last disabled at (79948): [] el1_dbg+0x24/0x80 [ 85.026839][ T5738] softirqs last enabled at (79924): [] handle_softirqs+0xa4c/0xbf0 [ 85.028183][ T5738] softirqs last disabled at (79909): [] __irq_exit_rcu+0x240/0x440 [ 85.029536][ T5738] ---[ end trace 23f092da44d37648 ]--- [ 85.033441][ T5738] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 85.220557][ T5760] loop0: detected capacity change from 0 to 32768 [ 85.259714][ T5760] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.45 (5760) [ 85.281998][ T5760] FAULT_INJECTION: forcing a failure. [ 85.281998][ T5760] name failslab, interval 1, probability 0, space 0, times 0 [ 85.284022][ T5760] CPU: 0 PID: 5760 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 85.285289][ T5760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.286713][ T5760] Call trace: [ 85.287161][ T5760] dump_backtrace+0x0/0x43c [ 85.287849][ T5760] show_stack+0x2c/0x3c [ 85.288482][ T5760] __dump_stack+0x30/0x40 [ 85.289045][ T5760] dump_stack_lvl+0xf8/0x160 [ 85.289639][ T5760] dump_stack+0x1c/0x5c [ 85.290196][ T5760] should_fail+0x3c0/0x51c [ 85.290796][ T5760] __should_failslab+0xbc/0x10c [ 85.291510][ T5760] should_failslab+0x10/0x28 [ 85.292217][ T5760] slab_pre_alloc_hook+0x64/0xec [ 85.292988][ T5760] kmem_cache_alloc+0x94/0x3e4 [ 85.293701][ T5760] btrfs_alloc_path+0x5c/0x68 [ 85.294379][ T5760] btrfs_insert_dir_item+0x16c/0x3b8 [ 85.295160][ T5760] btrfs_add_link+0x294/0xa68 [ 85.295877][ T5760] btrfs_link+0x3ac/0x6a4 [ 85.296554][ T5760] vfs_link+0x5b4/0x744 [ 85.297166][ T5760] do_linkat+0x3dc/0x6f8 [ 85.297786][ T5760] __arm64_sys_linkat+0xe4/0x100 [ 85.298591][ T5760] invoke_syscall+0x98/0x2b8 [ 85.299261][ T5760] el0_svc_common+0x138/0x258 [ 85.299941][ T5760] do_el0_svc+0x58/0x14c [ 85.300551][ T5760] el0_svc+0x78/0x1e0 [ 85.301121][ T5760] el0t_64_sync_handler+0xcc/0xe4 [ 85.301916][ T5760] el0t_64_sync+0x1a0/0x1a4 [ 85.304606][ T5760] ------------[ cut here ]------------ [ 85.305519][ T5760] WARNING: CPU: 0 PID: 5760 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 85.306765][ T5760] Modules linked in: [ 85.307351][ T5760] CPU: 0 PID: 5760 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 85.308624][ T5760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.310099][ T5760] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 85.311280][ T5760] pc : btrfs_add_link+0x6e8/0xa68 [ 85.312010][ T5760] lr : btrfs_add_link+0x6e8/0xa68 [ 85.312725][ T5760] sp : ffff8000221679e0 [ 85.313340][ T5760] x29: ffff800022167ae0 x28: ffff0000df2ba790 x27: 0000000000000107 [ 85.314476][ T5760] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 85.315666][ T5760] x23: 0000000000000005 x22: 1fffe0001be574fd x21: ffff70000442cf44 [ 85.316850][ T5760] x20: 00000000fffffff4 x19: ffff0000df2ba7e8 x18: 0000000000000001 [ 85.318071][ T5760] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 85.319295][ T5760] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 85.320448][ T5760] x11: 0000000000000000 x10: 0000000000000000 x9 : 63ffa0dcc0898b00 [ 85.321572][ T5760] x8 : 63ffa0dcc0898b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 85.322785][ T5760] x5 : ffff8000221672d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 85.323956][ T5760] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 85.325183][ T5760] Call trace: [ 85.325666][ T5760] btrfs_add_link+0x6e8/0xa68 [ 85.326329][ T5760] btrfs_link+0x3ac/0x6a4 [ 85.326908][ T5760] vfs_link+0x5b4/0x744 [ 85.327539][ T5760] do_linkat+0x3dc/0x6f8 [ 85.328163][ T5760] __arm64_sys_linkat+0xe4/0x100 [ 85.328941][ T5760] invoke_syscall+0x98/0x2b8 [ 85.329636][ T5760] el0_svc_common+0x138/0x258 [ 85.330344][ T5760] do_el0_svc+0x58/0x14c [ 85.330943][ T5760] el0_svc+0x78/0x1e0 [ 85.331514][ T5760] el0t_64_sync_handler+0xcc/0xe4 [ 85.332234][ T5760] el0t_64_sync+0x1a0/0x1a4 [ 85.332889][ T5760] irq event stamp: 80058 [ 85.333507][ T5760] hardirqs last enabled at (80057): [] __up_console_sem+0xb4/0x100 [ 85.334831][ T5760] hardirqs last disabled at (80058): [] el1_dbg+0x24/0x80 [ 85.336107][ T5760] softirqs last enabled at (80038): [] handle_softirqs+0xa4c/0xbf0 [ 85.337513][ T5760] softirqs last disabled at (80017): [] __irq_exit_rcu+0x240/0x440 [ 85.338729][ T5760] ---[ end trace 23f092da44d37649 ]--- [ 85.342104][ T5760] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 85.491694][ T5782] loop0: detected capacity change from 0 to 32768 [ 85.531569][ T5782] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.46 (5782) [ 85.584957][ T5782] FAULT_INJECTION: forcing a failure. [ 85.584957][ T5782] name failslab, interval 1, probability 0, space 0, times 0 [ 85.587025][ T5782] CPU: 0 PID: 5782 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 85.588340][ T5782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 85.589847][ T5782] Call trace: [ 85.590284][ T5782] dump_backtrace+0x0/0x43c [ 85.590918][ T5782] show_stack+0x2c/0x3c [ 85.591574][ T5782] __dump_stack+0x30/0x40 [ 85.592246][ T5782] dump_stack_lvl+0xf8/0x160 [ 85.592954][ T5782] dump_stack+0x1c/0x5c [ 85.593597][ T5782] should_fail+0x3c0/0x51c [ 85.594288][ T5782] __should_failslab+0xbc/0x10c [ 85.595008][ T5782] should_failslab+0x10/0x28 [ 85.595705][ T5782] slab_pre_alloc_hook+0x64/0xec [ 85.596453][ T5782] kmem_cache_alloc+0x94/0x3e4 [ 85.597147][ T5782] btrfs_alloc_path+0x5c/0x68 [ 85.597775][ T5782] btrfs_insert_inode_ref+0xe8/0x9e0 [ 85.598606][ T5782] btrfs_add_link+0x22c/0xa68 [ 85.599294][ T5782] btrfs_link+0x3ac/0x6a4 [ 85.599914][ T5782] vfs_link+0x5b4/0x744 [ 85.600505][ T5782] do_linkat+0x3dc/0x6f8 [ 85.601163][ T5782] __arm64_sys_linkat+0xe4/0x100 [ 85.601858][ T5782] invoke_syscall+0x98/0x2b8 [ 85.602453][ T5782] el0_svc_common+0x138/0x258 [ 85.603175][ T5782] do_el0_svc+0x58/0x14c [ 85.603794][ T5782] el0_svc+0x78/0x1e0 [ 85.604335][ T5782] el0t_64_sync_handler+0xcc/0xe4 [ 85.605040][ T5782] el0t_64_sync+0x1a0/0x1a4 [ 85.664387][ T4908] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 12 /dev/loop0 scanned by udevd (4908) [ 85.759447][ T5803] loop0: detected capacity change from 0 to 32768 [ 86.028331][ T5803] FAULT_INJECTION: forcing a failure. [ 86.028331][ T5803] name failslab, interval 1, probability 0, space 0, times 0 [ 86.030219][ T5803] CPU: 1 PID: 5803 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 86.031584][ T5803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 86.033026][ T5803] Call trace: [ 86.033494][ T5803] dump_backtrace+0x0/0x43c [ 86.034288][ T5803] show_stack+0x2c/0x3c [ 86.034922][ T5803] __dump_stack+0x30/0x40 [ 86.035594][ T5803] dump_stack_lvl+0xf8/0x160 [ 86.036287][ T5803] dump_stack+0x1c/0x5c [ 86.036916][ T5803] should_fail+0x3c0/0x51c [ 86.037587][ T5803] __should_failslab+0xbc/0x10c [ 86.038286][ T5803] should_failslab+0x10/0x28 [ 86.038968][ T5803] slab_pre_alloc_hook+0x64/0xec [ 86.039732][ T5803] kmem_cache_alloc+0x94/0x3e4 [ 86.040424][ T5803] btrfs_alloc_path+0x5c/0x68 [ 86.041011][ T5803] btrfs_insert_dir_item+0x16c/0x3b8 [ 86.041786][ T5803] btrfs_add_link+0x294/0xa68 [ 86.042472][ T5803] btrfs_link+0x3ac/0x6a4 [ 86.043137][ T5803] vfs_link+0x5b4/0x744 [ 86.043743][ T5803] do_linkat+0x3dc/0x6f8 [ 86.044360][ T5803] __arm64_sys_linkat+0xe4/0x100 [ 86.045016][ T5803] invoke_syscall+0x98/0x2b8 [ 86.045674][ T5803] el0_svc_common+0x138/0x258 [ 86.046370][ T5803] do_el0_svc+0x58/0x14c [ 86.047007][ T5803] el0_svc+0x78/0x1e0 [ 86.047585][ T5803] el0t_64_sync_handler+0xcc/0xe4 [ 86.048336][ T5803] el0t_64_sync+0x1a0/0x1a4 [ 86.068028][ T5803] ------------[ cut here ]------------ [ 86.068974][ T5803] WARNING: CPU: 1 PID: 5803 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 86.070235][ T5803] Modules linked in: [ 86.070785][ T5803] CPU: 1 PID: 5803 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 86.071925][ T5803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 86.073374][ T5803] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 86.074444][ T5803] pc : btrfs_add_link+0x6e8/0xa68 [ 86.075144][ T5803] lr : btrfs_add_link+0x6e8/0xa68 [ 86.075861][ T5803] sp : ffff8000227279e0 [ 86.076437][ T5803] x29: ffff800022727ae0 x28: ffff0000df119840 x27: 0000000000000107 [ 86.077628][ T5803] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 86.078892][ T5803] x23: 0000000000000005 x22: 1fffe0001be23313 x21: ffff7000044e4f44 [ 86.080157][ T5803] x20: 00000000fffffff4 x19: ffff0000df119898 x18: 0000000000000001 [ 86.081355][ T5803] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 86.082460][ T5803] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 86.083666][ T5803] x11: 0000000000000000 x10: 0000000000000000 x9 : 46b394e789e85000 [ 86.084827][ T5803] x8 : 46b394e789e85000 x7 : 0000000000000001 x6 : 0000000000000001 [ 86.085951][ T5803] x5 : ffff8000227272d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 86.087150][ T5803] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 86.088292][ T5803] Call trace: [ 86.088790][ T5803] btrfs_add_link+0x6e8/0xa68 [ 86.089503][ T5803] btrfs_link+0x3ac/0x6a4 [ 86.090118][ T5803] vfs_link+0x5b4/0x744 [ 86.090747][ T5803] do_linkat+0x3dc/0x6f8 [ 86.091338][ T5803] __arm64_sys_linkat+0xe4/0x100 [ 86.092071][ T5803] invoke_syscall+0x98/0x2b8 [ 86.092903][ T5803] el0_svc_common+0x138/0x258 [ 86.093754][ T5803] do_el0_svc+0x58/0x14c [ 86.094443][ T5803] el0_svc+0x78/0x1e0 [ 86.095108][ T5803] el0t_64_sync_handler+0xcc/0xe4 [ 86.095907][ T5803] el0t_64_sync+0x1a0/0x1a4 [ 86.096641][ T5803] irq event stamp: 80538 [ 86.097407][ T5803] hardirqs last enabled at (80537): [] __up_console_sem+0xb4/0x100 [ 86.098910][ T5803] hardirqs last disabled at (80538): [] el1_dbg+0x24/0x80 [ 86.100223][ T5803] softirqs last enabled at (80518): [] handle_softirqs+0xa4c/0xbf0 [ 86.101633][ T5803] softirqs last disabled at (80463): [] __irq_exit_rcu+0x240/0x440 [ 86.103032][ T5803] ---[ end trace 23f092da44d3764a ]--- [ 86.135895][ T5803] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory 1970/01/01 00:01:26 executed programs: 34 [ 86.365492][ T5829] loop0: detected capacity change from 0 to 32768 [ 86.400097][ T5829] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.48 (5829) [ 86.453199][ T5829] FAULT_INJECTION: forcing a failure. [ 86.453199][ T5829] name failslab, interval 1, probability 0, space 0, times 0 [ 86.455223][ T5829] CPU: 1 PID: 5829 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 86.456442][ T5829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 86.458026][ T5829] Call trace: [ 86.458560][ T5829] dump_backtrace+0x0/0x43c [ 86.459318][ T5829] show_stack+0x2c/0x3c [ 86.459968][ T5829] __dump_stack+0x30/0x40 [ 86.460612][ T5829] dump_stack_lvl+0xf8/0x160 [ 86.461311][ T5829] dump_stack+0x1c/0x5c [ 86.461926][ T5829] should_fail+0x3c0/0x51c [ 86.462604][ T5829] __should_failslab+0xbc/0x10c [ 86.463350][ T5829] should_failslab+0x10/0x28 [ 86.463942][ T5829] slab_pre_alloc_hook+0x64/0xec [ 86.464607][ T5829] kmem_cache_alloc+0x94/0x3e4 [ 86.465253][ T5829] btrfs_alloc_path+0x5c/0x68 [ 86.465922][ T5829] btrfs_insert_dir_item+0x16c/0x3b8 [ 86.466670][ T5829] btrfs_add_link+0x294/0xa68 [ 86.467378][ T5829] btrfs_link+0x3ac/0x6a4 [ 86.467993][ T5829] vfs_link+0x5b4/0x744 [ 86.468583][ T5829] do_linkat+0x3dc/0x6f8 [ 86.469207][ T5829] __arm64_sys_linkat+0xe4/0x100 [ 86.469985][ T5829] invoke_syscall+0x98/0x2b8 [ 86.470666][ T5829] el0_svc_common+0x138/0x258 [ 86.471357][ T5829] do_el0_svc+0x58/0x14c [ 86.471961][ T5829] el0_svc+0x78/0x1e0 [ 86.472505][ T5829] el0t_64_sync_handler+0xcc/0xe4 [ 86.473273][ T5829] el0t_64_sync+0x1a0/0x1a4 [ 86.475755][ T5829] ------------[ cut here ]------------ [ 86.476710][ T5829] WARNING: CPU: 1 PID: 5829 at fs/btrfs/inode.c:6776 btrfs_add_link+0x6e8/0xa68 [ 86.478130][ T5829] Modules linked in: [ 86.478722][ T5829] CPU: 1 PID: 5829 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 86.479949][ T5829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 86.481408][ T5829] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 86.482543][ T5829] pc : btrfs_add_link+0x6e8/0xa68 [ 86.483281][ T5829] lr : btrfs_add_link+0x6e8/0xa68 [ 86.484027][ T5829] sp : ffff8000222879e0 [ 86.484637][ T5829] x29: ffff800022287ae0 x28: ffff0000df119580 x27: 0000000000000107 [ 86.485881][ T5829] x26: 00000000fffffff4 x25: 0000000000000001 x24: dfff800000000000 [ 86.487057][ T5829] x23: 0000000000000005 x22: 1fffe0001be232bb x21: ffff700004450f44 [ 86.488219][ T5829] x20: 00000000fffffff4 x19: ffff0000df1195d8 x18: 0000000000000001 [ 86.489392][ T5829] x17: 0000000000000000 x16: ffff800011169180 x15: 00000000ffffffff [ 86.490532][ T5829] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 86.491714][ T5829] x11: 0000000000000000 x10: 0000000000000000 x9 : d5f3d4698d5a9800 [ 86.492934][ T5829] x8 : d5f3d4698d5a9800 x7 : 0000000000000001 x6 : 0000000000000001 [ 86.494170][ T5829] x5 : ffff8000222872d8 x4 : ffff8000141ff5a0 x3 : ffff8000085043fc [ 86.495490][ T5829] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 86.496749][ T5829] Call trace: [ 86.497206][ T5829] btrfs_add_link+0x6e8/0xa68 [ 86.497932][ T5829] btrfs_link+0x3ac/0x6a4 [ 86.498643][ T5829] vfs_link+0x5b4/0x744 [ 86.499237][ T5829] do_linkat+0x3dc/0x6f8 [ 86.499869][ T5829] __arm64_sys_linkat+0xe4/0x100 [ 86.500665][ T5829] invoke_syscall+0x98/0x2b8 [ 86.501421][ T5829] el0_svc_common+0x138/0x258 [ 86.502106][ T5829] do_el0_svc+0x58/0x14c [ 86.502740][ T5829] el0_svc+0x78/0x1e0 [ 86.503363][ T5829] el0t_64_sync_handler+0xcc/0xe4 [ 86.504100][ T5829] el0t_64_sync+0x1a0/0x1a4 [ 86.504746][ T5829] irq event stamp: 79612 [ 86.505360][ T5829] hardirqs last enabled at (79611): [] __up_console_sem+0xb4/0x100 [ 86.506722][ T5829] hardirqs last disabled at (79612): [] el1_dbg+0x24/0x80 [ 86.507984][ T5829] softirqs last enabled at (79592): [] handle_softirqs+0xa4c/0xbf0 [ 86.509386][ T5829] softirqs last disabled at (79549): [] __irq_exit_rcu+0x240/0x440 [ 86.510716][ T5829] ---[ end trace 23f092da44d3764b ]--- [ 86.514754][ T5829] BTRFS: error (device loop0) in btrfs_add_link:6776: errno=-12 Out of memory [ 86.696928][ T5851] loop0: detected capacity change from 0 to 32768 [ 86.749928][ T5851] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.49 (5851) [ 86.781117][ T5851] FAULT_INJECTION: forcing a failure. [ 86.781117][ T5851] name failslab, interval 1, probability 0, space 0, times 0 [ 86.783112][ T5851] CPU: 0 PID: 5851 Comm: syz.0.49 Tainted: G W syzkaller #0 [ 86.784324][ T5851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 86.785666][ T5851] Call trace: [ 86.786152][ T5851] dump_backtrace+0x0/0x43c [ 86.786789][ T5851] show_stack+0x2c/0x3c [ 86.787371][ T5851] __dump_stack+0x30/0x40 [ 86.787992][ T5851] dump_stack_lvl+0xf8/0x160 [ 86.788663][ T5851] dump_stack+0x1c/0x5c [ 86.789281][ T5851] should_fail+0x3c0/0x51c [ 86.789959][ T5851] __should_failslab+0xbc/0x10c [ 86.790655][ T5851] should_failslab+0x10/0x28 [ 86.791301][ T5851] slab_pre_alloc_hook+0x64/0xec [ 86.791994][ T5851] kmem_cache_alloc+0x94/0x3e4 [ 86.792669][ T5851] start_transaction+0x4d0/0x13f0 [ 86.793412][ T5851] btrfs_start_transaction+0x34/0x44 [ 86.794178][ T5851] btrfs_link+0x1f0/0x6a4 [ 86.794786][ T5851] vfs_link+0x5b4/0x744 [ 86.795374][ T5851] do_linkat+0x3dc/0x6f8 [ 86.795989][ T5851] __arm64_sys_linkat+0xe4/0x100 [ 86.796675][ T5851] invoke_syscall+0x98/0x2b8 [ 86.797331][ T5851] el0_svc_common+0x138/0x258 [ 86.798004][ T5851] do_el0_svc+0x58/0x14c [ 86.798622][ T5851] el0_svc+0x78/0x1e0 [ 86.799206][ T5851] el0t_64_sync_handler+0xcc/0xe4 [ 86.799914][ T5851] el0t_64_sync+0x1a0/0x1a4