[ 49.563010][ T347] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 49.591618][ T347] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 49.661166][ T347] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 49.702327][ T347] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 51.223062][ T347] device hsr_slave_0 left promiscuous mode [ 51.288610][ T347] device hsr_slave_1 left promiscuous mode [ 51.388595][ T347] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 51.389877][ T347] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 51.391350][ T347] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 51.392497][ T347] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 51.393845][ T347] device bridge_slave_1 left promiscuous mode [ 51.394897][ T347] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.428898][ T347] device bridge_slave_0 left promiscuous mode [ 51.429925][ T347] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.568519][ T347] device veth1_macvtap left promiscuous mode [ 51.569584][ T347] device veth0_macvtap left promiscuous mode [ 51.570601][ T347] device veth1_vlan left promiscuous mode [ 51.571590][ T347] device veth0_vlan left promiscuous mode [ 51.654051][ T347] team0 (unregistering): Port device team_slave_1 removed [ 51.657928][ T347] team0 (unregistering): Port device team_slave_0 removed [ 51.663574][ T347] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 51.701582][ T347] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 51.802378][ T347] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.10.3' (ED25519) to the list of known hosts. 1970/01/01 00:00:53 ignoring optional flag "type"="gce" 1970/01/01 00:00:53 parsed 1 programs [ 54.628219][ T4342] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 57.124035][ T418] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 57.125482][ T418] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 57.126855][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 57.132768][ T418] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 57.134137][ T418] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 57.135484][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 57.421721][ T4392] chnl_net:caif_netlink_parms(): no params data found [ 57.439568][ T4392] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.441027][ T4392] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.442693][ T4392] device bridge_slave_0 entered promiscuous mode [ 57.444690][ T4392] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.445948][ T4392] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.447493][ T4392] device bridge_slave_1 entered promiscuous mode [ 57.457996][ T4392] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.461990][ T4392] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.470419][ T4392] team0: Port device team_slave_0 added [ 57.472268][ T4392] team0: Port device team_slave_1 added [ 57.480800][ T4392] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 57.482014][ T4392] 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. [ 57.486170][ T4392] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 57.489343][ T4392] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 57.490367][ T4392] 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. [ 57.495011][ T4392] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 57.550034][ T4392] device hsr_slave_0 entered promiscuous mode [ 57.598651][ T4392] device hsr_slave_1 entered promiscuous mode [ 58.286813][ T4392] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.320070][ T4392] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.380012][ T4392] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.420004][ T4392] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.500150][ T4392] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.505805][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.507465][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.512794][ T4392] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.518879][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.520482][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.522027][ T418] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.523220][ T418] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.524848][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.526378][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.527850][ T418] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.529149][ T418] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.531924][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.533697][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 58.541565][ T4392] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 58.543120][ T4392] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 58.545388][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.546847][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 58.550544][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.552181][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 58.553850][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.555460][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 58.557083][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.560381][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 58.561995][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.565705][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.567240][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.612212][ T4392] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.620474][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.621803][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.623232][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 58.628097][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 58.638974][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 58.640494][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 58.644300][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 58.645959][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 58.647521][ T4392] device veth0_vlan entered promiscuous mode [ 58.652076][ T4392] device veth1_vlan entered promiscuous mode [ 58.661128][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 58.662818][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 58.664387][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 58.665934][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 58.669397][ T4392] device veth0_macvtap entered promiscuous mode [ 58.674114][ T4392] device veth1_macvtap entered promiscuous mode [ 58.680931][ T4392] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 58.682089][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 58.683601][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 58.685107][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 58.687008][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 58.690313][ T4392] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 58.692480][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 58.694340][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 58.696647][ T4392] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.698096][ T4392] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.701366][ T4392] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.702854][ T4392] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:00:59 executed programs: 0 [ 59.157263][ T4605] chnl_net:caif_netlink_parms(): no params data found [ 59.174657][ T4605] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.175881][ T4605] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.177769][ T4605] device bridge_slave_0 entered promiscuous mode [ 59.180104][ T4605] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.181387][ T4605] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.182989][ T4605] device bridge_slave_1 entered promiscuous mode [ 59.191499][ T4605] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.194139][ T4605] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.205196][ T4605] team0: Port device team_slave_0 added [ 59.207255][ T4605] team0: Port device team_slave_1 added [ 59.214064][ T4605] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 59.215203][ T4605] 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. [ 59.220200][ T4605] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 59.222473][ T4605] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 59.223574][ T4605] 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. [ 59.227733][ T4605] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 59.259592][ T4605] device hsr_slave_0 entered promiscuous mode [ 59.299148][ T4605] device hsr_slave_1 entered promiscuous mode [ 59.348597][ T4605] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 59.349934][ T4605] Cannot create hsr debugfs directory [ 59.385656][ T4605] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 61.128666][ T4534] Bluetooth: hci0: command 0x0409 tx timeout [ 62.001472][ T4605] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.208921][ T4538] Bluetooth: hci0: command 0x041b tx timeout [ 64.401277][ T4605] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.442173][ T4605] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.611995][ T4605] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.660230][ T4605] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.708619][ T4605] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.759330][ T4605] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.827907][ T4605] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.831697][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 64.833353][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.835936][ T4605] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.838359][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.841787][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.843300][ T418] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.844567][ T418] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.846013][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 64.852888][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.854575][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.856190][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.857466][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.860859][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.863112][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.865805][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.867746][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.870086][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.872785][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.874701][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.877306][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.880142][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.889288][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 64.890932][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.893423][ T4605] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.930169][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.931584][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.935192][ T4605] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.942464][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 64.944165][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 64.950105][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 64.951715][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 64.953428][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 64.954789][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 64.957046][ T4605] device veth0_vlan entered promiscuous mode [ 64.961650][ T4605] device veth1_vlan entered promiscuous mode [ 64.968851][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 64.970467][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 64.972110][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 64.973718][ T1654] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 64.976156][ T4605] device veth0_macvtap entered promiscuous mode [ 64.978768][ T4605] device veth1_macvtap entered promiscuous mode [ 64.983521][ T4605] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 64.985293][ T4605] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 64.987455][ T4605] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 64.988978][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 64.990457][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 64.991991][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 64.993613][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 64.996088][ T4605] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 64.997727][ T4605] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 65.000898][ T4605] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.002059][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 65.003875][ T418] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.006598][ T4605] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.008018][ T4605] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.010053][ T4605] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.011418][ T4605] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.029565][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.030894][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.032243][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.039703][ T418] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.041046][ T418] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.042445][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:05 executed programs: 2 [ 65.158592][ T4682] loop0: detected capacity change from 0 to 32768 [ 65.215017][ T4682] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.15 (4682) [ 65.221262][ T4682] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 65.222875][ T4682] BTRFS info (device loop0): using free space tree [ 65.223967][ T4682] BTRFS info (device loop0): has skinny extents [ 65.237939][ T4682] BTRFS info (device loop0): enabling ssd optimizations [ 65.244964][ T4682] FAULT_INJECTION: forcing a failure. [ 65.244964][ T4682] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 65.247148][ T4682] CPU: 0 PID: 4682 Comm: syz.0.15 Not tainted syzkaller #0 [ 65.248227][ T4682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 65.250063][ T4682] Call trace: [ 65.250672][ T4682] dump_backtrace+0x0/0x458 [ 65.251495][ T4682] show_stack+0x2c/0x3c [ 65.252268][ T4682] __dump_stack+0x30/0x40 [ 65.253079][ T4682] dump_stack_lvl+0xf4/0x15c [ 65.253928][ T4682] dump_stack+0x1c/0x5c [ 65.254705][ T4682] should_fail+0x3c8/0x520 [ 65.255528][ T4682] should_fail_alloc_page+0x74/0xa8 [ 65.256508][ T4682] prepare_alloc_pages+0x160/0x460 [ 65.257452][ T4682] __alloc_pages+0x108/0x474 [ 65.258390][ T4682] alloc_pages+0x34c/0x5c0 [ 65.259191][ T4682] new_slab+0xdc/0x53c [ 65.259943][ T4682] ___slab_alloc+0x6ac/0xd84 [ 65.260721][ T4682] __slab_alloc+0x68/0xc0 [ 65.261445][ T4682] kmem_cache_alloc+0x2a8/0x3d8 [ 65.262300][ T4682] btrfs_add_delayed_data_ref+0x174/0xd64 [ 65.263229][ T4682] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 65.264332][ T4682] btrfs_insert_replace_extent+0x818/0x9b0 [ 65.265347][ T4682] btrfs_replace_file_extents+0x8a8/0x1284 [ 65.266340][ T4682] __btrfs_prealloc_file_range+0x35c/0xb80 [ 65.267372][ T4682] btrfs_prealloc_file_range+0x60/0x7c [ 65.268454][ T4682] btrfs_fallocate+0xcb0/0x1720 [ 65.269420][ T4682] vfs_fallocate+0x4a4/0x5fc [ 65.270240][ T4682] __arm64_sys_fallocate+0xc4/0x114 [ 65.271190][ T4682] invoke_syscall+0x98/0x28c [ 65.272033][ T4682] el0_svc_common+0x13c/0x258 [ 65.272915][ T4682] do_el0_svc+0x5c/0x140 [ 65.273722][ T4682] el0_svc+0x78/0x1d0 [ 65.274402][ T4682] el0t_64_sync_handler+0xcc/0xe4 [ 65.275283][ T4682] el0t_64_sync+0x1a0/0x1a4 [ 65.288686][ T4539] Bluetooth: hci0: command 0x040f tx timeout [ 65.441138][ T4707] loop0: detected capacity change from 0 to 32768 [ 65.480862][ T4707] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.16 (4707) [ 65.483880][ T4707] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 65.485239][ T4707] BTRFS info (device loop0): using free space tree [ 65.486244][ T4707] BTRFS info (device loop0): has skinny extents [ 65.494003][ T4707] BTRFS info (device loop0): enabling ssd optimizations [ 65.498019][ T4707] FAULT_INJECTION: forcing a failure. [ 65.498019][ T4707] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 65.500680][ T4707] CPU: 1 PID: 4707 Comm: syz.0.16 Not tainted syzkaller #0 [ 65.501899][ T4707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 65.503596][ T4707] Call trace: [ 65.504105][ T4707] dump_backtrace+0x0/0x458 [ 65.504823][ T4707] show_stack+0x2c/0x3c [ 65.505533][ T4707] __dump_stack+0x30/0x40 [ 65.506212][ T4707] dump_stack_lvl+0xf4/0x15c [ 65.506960][ T4707] dump_stack+0x1c/0x5c [ 65.507642][ T4707] should_fail+0x3c8/0x520 [ 65.508300][ T4707] should_fail_alloc_page+0x74/0xa8 [ 65.509175][ T4707] prepare_alloc_pages+0x160/0x460 [ 65.510062][ T4707] __alloc_pages+0x108/0x474 [ 65.510848][ T4707] alloc_pages+0x34c/0x5c0 [ 65.511608][ T4707] new_slab+0xdc/0x53c [ 65.512323][ T4707] ___slab_alloc+0x6ac/0xd84 [ 65.513094][ T4707] __slab_alloc+0x68/0xc0 [ 65.513840][ T4707] kmem_cache_alloc+0x2a8/0x3d8 [ 65.514686][ T4707] btrfs_add_delayed_data_ref+0x174/0xd64 [ 65.515632][ T4707] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 65.516686][ T4707] btrfs_insert_replace_extent+0x818/0x9b0 [ 65.517653][ T4707] btrfs_replace_file_extents+0x8a8/0x1284 [ 65.518626][ T4707] __btrfs_prealloc_file_range+0x35c/0xb80 [ 65.519606][ T4707] btrfs_prealloc_file_range+0x60/0x7c [ 65.520487][ T4707] btrfs_fallocate+0xcb0/0x1720 [ 65.521279][ T4707] vfs_fallocate+0x4a4/0x5fc [ 65.522096][ T4707] __arm64_sys_fallocate+0xc4/0x114 [ 65.523026][ T4707] invoke_syscall+0x98/0x28c [ 65.523821][ T4707] el0_svc_common+0x13c/0x258 [ 65.524637][ T4707] do_el0_svc+0x5c/0x140 [ 65.525401][ T4707] el0_svc+0x78/0x1d0 [ 65.526048][ T4707] el0t_64_sync_handler+0xcc/0xe4 [ 65.526846][ T4707] el0t_64_sync+0x1a0/0x1a4 [ 65.570599][ T4358] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4358) [ 65.668220][ T4728] loop0: detected capacity change from 0 to 32768 [ 65.731089][ T4728] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 65.732627][ T4728] BTRFS info (device loop0): using free space tree [ 65.733704][ T4728] BTRFS info (device loop0): has skinny extents [ 65.747724][ T4728] BTRFS info (device loop0): enabling ssd optimizations [ 65.757269][ T4728] FAULT_INJECTION: forcing a failure. [ 65.757269][ T4728] name failslab, interval 1, probability 0, space 0, times 1 [ 65.760422][ T4728] CPU: 1 PID: 4728 Comm: syz.0.17 Not tainted syzkaller #0 [ 65.761637][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 65.763188][ T4728] Call trace: [ 65.763692][ T4728] dump_backtrace+0x0/0x458 [ 65.764430][ T4728] show_stack+0x2c/0x3c [ 65.765087][ T4728] __dump_stack+0x30/0x40 [ 65.765844][ T4728] dump_stack_lvl+0xf4/0x15c [ 65.766705][ T4728] dump_stack+0x1c/0x5c [ 65.767418][ T4728] should_fail+0x3c8/0x520 [ 65.768236][ T4728] __should_failslab+0xbc/0x10c [ 65.769117][ T4728] should_failslab+0x10/0x28 [ 65.769950][ T4728] slab_pre_alloc_hook+0x64/0xe8 [ 65.770850][ T4728] kmem_cache_alloc+0x94/0x3d8 [ 65.771733][ T4728] btrfs_add_delayed_data_ref+0x174/0xd64 [ 65.772790][ T4728] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 65.773897][ T4728] btrfs_insert_replace_extent+0x818/0x9b0 [ 65.774954][ T4728] btrfs_replace_file_extents+0x8a8/0x1284 [ 65.775921][ T4728] __btrfs_prealloc_file_range+0x35c/0xb80 [ 65.776952][ T4728] btrfs_prealloc_file_range+0x60/0x7c [ 65.777900][ T4728] btrfs_fallocate+0xcb0/0x1720 [ 65.778750][ T4728] vfs_fallocate+0x4a4/0x5fc [ 65.779530][ T4728] __arm64_sys_fallocate+0xc4/0x114 [ 65.780456][ T4728] invoke_syscall+0x98/0x28c [ 65.781253][ T4728] el0_svc_common+0x13c/0x258 [ 65.782063][ T4728] do_el0_svc+0x5c/0x140 [ 65.782782][ T4728] el0_svc+0x78/0x1d0 [ 65.783502][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 65.784366][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 65.787362][ T4728] ------------[ cut here ]------------ [ 65.788387][ T4728] WARNING: CPU: 1 PID: 4728 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 65.790161][ T4728] Modules linked in: [ 65.790886][ T4728] CPU: 1 PID: 4728 Comm: syz.0.17 Not tainted syzkaller #0 [ 65.792239][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 65.794136][ T4728] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 65.795490][ T4728] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 65.796579][ T4728] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 65.797681][ T4728] sp : ffff80001fa676c0 [ 65.798419][ T4728] x29: ffff80001fa677e0 x28: 00000000fffffff4 x27: ffff80001fa67980 [ 65.799816][ T4728] x26: 0000000000000000 x25: dfff800000000000 x24: ffff700003f4cee8 [ 65.801259][ T4728] x23: ffff0000ed4da740 x22: ffff0000dd7332c0 x21: ffff0000ecedd600 [ 65.802931][ T4728] x20: 1fffe0001bae6663 x19: ffff0000dd733318 x18: 0000000000000000 [ 65.804646][ T4728] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 65.806293][ T4728] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 65.807902][ T4728] x11: ff80800008300a38 x10: 0000000000000000 x9 : 238d5e9c9955ca00 [ 65.809442][ T4728] x8 : 238d5e9c9955ca00 x7 : 0000000000000001 x6 : 0000000000000001 [ 65.810997][ T4728] x5 : ffff80001fa66fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 65.812558][ T4728] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 65.814008][ T4728] Call trace: [ 65.814550][ T4728] btrfs_replace_file_extents+0xd18/0x1284 [ 65.815538][ T4728] __btrfs_prealloc_file_range+0x35c/0xb80 [ 65.816479][ T4728] btrfs_prealloc_file_range+0x60/0x7c [ 65.817400][ T4728] btrfs_fallocate+0xcb0/0x1720 [ 65.818232][ T4728] vfs_fallocate+0x4a4/0x5fc [ 65.819046][ T4728] __arm64_sys_fallocate+0xc4/0x114 [ 65.820108][ T4728] invoke_syscall+0x98/0x28c [ 65.820922][ T4728] el0_svc_common+0x13c/0x258 [ 65.821746][ T4728] do_el0_svc+0x5c/0x140 [ 65.822453][ T4728] el0_svc+0x78/0x1d0 [ 65.823129][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 65.823981][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 65.824787][ T4728] irq event stamp: 79748 [ 65.825564][ T4728] hardirqs last enabled at (79747): [] __up_console_sem+0xb4/0xfc [ 65.827332][ T4728] hardirqs last disabled at (79748): [] el1_dbg+0x24/0x80 [ 65.828935][ T4728] softirqs last enabled at (79728): [] handle_softirqs+0xa70/0xc14 [ 65.830702][ T4728] softirqs last disabled at (79705): [] __irq_exit_rcu+0x240/0x434 [ 65.832347][ T4728] ---[ end trace 7725cedd7cb04555 ]--- [ 65.834250][ T4728] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 65.836166][ T4728] BTRFS info (device loop0): forced readonly [ 65.879472][ T4358] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by udevd (4358) [ 65.967956][ T4751] loop0: detected capacity change from 0 to 32768 [ 66.106788][ T4751] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 66.108719][ T4751] BTRFS info (device loop0): using free space tree [ 66.109884][ T4751] BTRFS info (device loop0): has skinny extents [ 66.117045][ T4751] BTRFS info (device loop0): enabling ssd optimizations [ 66.120967][ T4751] FAULT_INJECTION: forcing a failure. [ 66.120967][ T4751] name failslab, interval 1, probability 0, space 0, times 0 [ 66.122892][ T4751] CPU: 1 PID: 4751 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 66.124349][ T4751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 66.126001][ T4751] Call trace: [ 66.126610][ T4751] dump_backtrace+0x0/0x458 [ 66.127412][ T4751] show_stack+0x2c/0x3c [ 66.128114][ T4751] __dump_stack+0x30/0x40 [ 66.128800][ T4751] dump_stack_lvl+0xf4/0x15c [ 66.129634][ T4751] dump_stack+0x1c/0x5c [ 66.130344][ T4751] should_fail+0x3c8/0x520 [ 66.131073][ T4751] __should_failslab+0xbc/0x10c [ 66.131886][ T4751] should_failslab+0x10/0x28 [ 66.132695][ T4751] slab_pre_alloc_hook+0x64/0xe8 [ 66.133544][ T4751] kmem_cache_alloc+0x94/0x3d8 [ 66.134395][ T4751] alloc_extent_map+0x28/0x128 [ 66.135403][ T4751] btrfs_drop_extent_cache+0x160/0xd60 [ 66.136309][ T4751] btrfs_drop_extents+0x2e8/0x2338 [ 66.137206][ T4751] btrfs_replace_file_extents+0x340/0x1284 [ 66.138168][ T4751] __btrfs_prealloc_file_range+0x35c/0xb80 [ 66.139154][ T4751] btrfs_prealloc_file_range+0x60/0x7c [ 66.140071][ T4751] btrfs_fallocate+0xcb0/0x1720 [ 66.140872][ T4751] vfs_fallocate+0x4a4/0x5fc [ 66.141689][ T4751] __arm64_sys_fallocate+0xc4/0x114 [ 66.142590][ T4751] invoke_syscall+0x98/0x28c [ 66.143407][ T4751] el0_svc_common+0x13c/0x258 [ 66.144191][ T4751] do_el0_svc+0x5c/0x140 [ 66.144953][ T4751] el0_svc+0x78/0x1d0 [ 66.145662][ T4751] el0t_64_sync_handler+0xcc/0xe4 [ 66.146553][ T4751] el0t_64_sync+0x1a0/0x1a4 [ 66.292042][ T4774] loop0: detected capacity change from 0 to 32768 [ 66.323804][ T4774] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.19 (4774) [ 66.327217][ T4774] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 66.330103][ T4774] BTRFS info (device loop0): using free space tree [ 66.331196][ T4774] BTRFS info (device loop0): has skinny extents [ 66.338297][ T4774] BTRFS info (device loop0): enabling ssd optimizations [ 66.341937][ T4774] FAULT_INJECTION: forcing a failure. [ 66.341937][ T4774] name failslab, interval 1, probability 0, space 0, times 0 [ 66.343930][ T4774] CPU: 0 PID: 4774 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 66.345222][ T4774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 66.346803][ T4774] Call trace: [ 66.347326][ T4774] dump_backtrace+0x0/0x458 [ 66.348027][ T4774] show_stack+0x2c/0x3c [ 66.348706][ T4774] __dump_stack+0x30/0x40 [ 66.349437][ T4774] dump_stack_lvl+0xf4/0x15c [ 66.350224][ T4774] dump_stack+0x1c/0x5c [ 66.350934][ T4774] should_fail+0x3c8/0x520 [ 66.351685][ T4774] __should_failslab+0xbc/0x10c [ 66.352442][ T4774] should_failslab+0x10/0x28 [ 66.353198][ T4774] slab_pre_alloc_hook+0x64/0xe8 [ 66.354011][ T4774] kmem_cache_alloc+0x94/0x3d8 [ 66.354843][ T4774] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 66.355826][ T4774] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 66.356904][ T4774] btrfs_insert_replace_extent+0x818/0x9b0 [ 66.357897][ T4774] btrfs_replace_file_extents+0x8a8/0x1284 [ 66.358889][ T4774] __btrfs_prealloc_file_range+0x35c/0xb80 [ 66.359871][ T4774] btrfs_prealloc_file_range+0x60/0x7c [ 66.360767][ T4774] btrfs_fallocate+0xcb0/0x1720 [ 66.361573][ T4774] vfs_fallocate+0x4a4/0x5fc [ 66.362338][ T4774] __arm64_sys_fallocate+0xc4/0x114 [ 66.363186][ T4774] invoke_syscall+0x98/0x28c [ 66.363951][ T4774] el0_svc_common+0x13c/0x258 [ 66.364699][ T4774] do_el0_svc+0x5c/0x140 [ 66.365438][ T4774] el0_svc+0x78/0x1d0 [ 66.366144][ T4774] el0t_64_sync_handler+0xcc/0xe4 [ 66.367053][ T4774] el0t_64_sync+0x1a0/0x1a4 [ 66.369395][ T4774] ------------[ cut here ]------------ [ 66.370913][ T4774] WARNING: CPU: 0 PID: 4774 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 66.372646][ T4774] Modules linked in: [ 66.373312][ T4774] CPU: 0 PID: 4774 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 66.374700][ T4774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 66.376242][ T4774] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 66.377525][ T4774] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 66.378496][ T4774] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 66.379533][ T4774] sp : ffff80001fda76c0 [ 66.380234][ T4774] x29: ffff80001fda77e0 x28: 00000000fffffff4 x27: ffff80001fda7980 [ 66.381510][ T4774] x26: 0000000000000000 x25: dfff800000000000 x24: ffff700003fb4ee8 [ 66.382783][ T4774] x23: ffff0000e2bcbae0 x22: ffff0000ded99420 x21: ffff0000c1310d00 [ 66.384157][ T4774] x20: 1fffe0001bdb328f x19: ffff0000ded99478 x18: 0000000000000000 [ 66.385516][ T4774] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 66.386907][ T4774] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 66.388294][ T4774] x11: ff80800008300a38 x10: 0000000000000000 x9 : 45c5346a8963e700 [ 66.389628][ T4774] x8 : 45c5346a8963e700 x7 : 0000000000000001 x6 : 0000000000000001 [ 66.390931][ T4774] x5 : ffff80001fda6fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 66.392316][ T4774] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 66.393704][ T4774] Call trace: [ 66.394268][ T4774] btrfs_replace_file_extents+0xd18/0x1284 [ 66.395279][ T4774] __btrfs_prealloc_file_range+0x35c/0xb80 [ 66.396298][ T4774] btrfs_prealloc_file_range+0x60/0x7c [ 66.397212][ T4774] btrfs_fallocate+0xcb0/0x1720 [ 66.398008][ T4774] vfs_fallocate+0x4a4/0x5fc [ 66.398771][ T4774] __arm64_sys_fallocate+0xc4/0x114 [ 66.399638][ T4774] invoke_syscall+0x98/0x28c [ 66.400402][ T4774] el0_svc_common+0x13c/0x258 [ 66.401167][ T4774] do_el0_svc+0x5c/0x140 [ 66.401874][ T4774] el0_svc+0x78/0x1d0 [ 66.402537][ T4774] el0t_64_sync_handler+0xcc/0xe4 [ 66.403352][ T4774] el0t_64_sync+0x1a0/0x1a4 [ 66.404119][ T4774] irq event stamp: 79370 [ 66.404842][ T4774] hardirqs last enabled at (79369): [] __up_console_sem+0xb4/0xfc [ 66.406495][ T4774] hardirqs last disabled at (79370): [] el1_dbg+0x24/0x80 [ 66.407970][ T4774] softirqs last enabled at (79340): [] handle_softirqs+0xa70/0xc14 [ 66.409583][ T4774] softirqs last disabled at (79285): [] __irq_exit_rcu+0x240/0x434 [ 66.411211][ T4774] ---[ end trace 7725cedd7cb04556 ]--- [ 66.412610][ T4774] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 66.413953][ T347] device hsr_slave_0 left promiscuous mode [ 66.414321][ T4774] BTRFS info (device loop0): forced readonly [ 66.450292][ T347] device hsr_slave_1 left promiscuous mode [ 66.518548][ T347] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 66.519878][ T347] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 66.521802][ T347] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 66.523107][ T347] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 66.525147][ T347] device bridge_slave_1 left promiscuous mode [ 66.526307][ T347] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.560090][ T347] device bridge_slave_0 left promiscuous mode [ 66.561137][ T347] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.561954][ T4796] loop0: detected capacity change from 0 to 32768 [ 66.602521][ T4796] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.20 (4796) [ 66.607356][ T4796] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 66.609330][ T4796] BTRFS info (device loop0): using free space tree [ 66.610426][ T4796] BTRFS info (device loop0): has skinny extents [ 66.618252][ T4796] BTRFS info (device loop0): enabling ssd optimizations [ 66.624865][ T4796] FAULT_INJECTION: forcing a failure. [ 66.624865][ T4796] name failslab, interval 1, probability 0, space 0, times 0 [ 66.627244][ T4796] CPU: 1 PID: 4796 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 66.628785][ T4796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 66.630822][ T4796] Call trace: [ 66.631437][ T4796] dump_backtrace+0x0/0x458 [ 66.632212][ T4796] show_stack+0x2c/0x3c [ 66.632935][ T4796] __dump_stack+0x30/0x40 [ 66.633695][ T4796] dump_stack_lvl+0xf4/0x15c [ 66.634480][ T4796] dump_stack+0x1c/0x5c [ 66.635193][ T4796] should_fail+0x3c8/0x520 [ 66.635982][ T4796] __should_failslab+0xbc/0x10c [ 66.636803][ T4796] should_failslab+0x10/0x28 [ 66.637594][ T4796] slab_pre_alloc_hook+0x64/0xe8 [ 66.638461][ T4796] kmem_cache_alloc+0x94/0x3d8 [ 66.639332][ T4796] btrfs_add_delayed_data_ref+0x174/0xd64 [ 66.640379][ T4796] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 66.641439][ T4796] btrfs_insert_replace_extent+0x818/0x9b0 [ 66.642477][ T4796] btrfs_replace_file_extents+0x8a8/0x1284 [ 66.643561][ T4796] __btrfs_prealloc_file_range+0x35c/0xb80 [ 66.644563][ T4796] btrfs_prealloc_file_range+0x60/0x7c [ 66.645670][ T4796] btrfs_fallocate+0xcb0/0x1720 [ 66.646669][ T4796] vfs_fallocate+0x4a4/0x5fc [ 66.647604][ T4796] __arm64_sys_fallocate+0xc4/0x114 [ 66.648607][ T4796] invoke_syscall+0x98/0x28c [ 66.649496][ T4796] el0_svc_common+0x13c/0x258 [ 66.650432][ T4796] do_el0_svc+0x5c/0x140 [ 66.651194][ T4796] el0_svc+0x78/0x1d0 [ 66.652005][ T4796] el0t_64_sync_handler+0xcc/0xe4 [ 66.653021][ T4796] el0t_64_sync+0x1a0/0x1a4 [ 66.655636][ T4796] ------------[ cut here ]------------ [ 66.656644][ T4796] WARNING: CPU: 1 PID: 4796 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 66.658194][ T4796] Modules linked in: [ 66.658869][ T4796] CPU: 1 PID: 4796 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 66.660406][ T4796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 66.662200][ T4796] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 66.663655][ T4796] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 66.664820][ T4796] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 66.665979][ T4796] sp : ffff80001fda76c0 [ 66.666753][ T4796] x29: ffff80001fda77e0 x28: 00000000fffffff4 x27: ffff80001fda7980 [ 66.668154][ T4796] x26: 0000000000000000 x25: dfff800000000000 x24: ffff700003fb4ee8 [ 66.669564][ T4796] x23: ffff0000ed4de220 x22: ffff0000dd7336e0 x21: ffff0000ce491b00 [ 66.671004][ T4796] x20: 1fffe0001bae66e7 x19: ffff0000dd733738 x18: 0000000000000000 [ 66.672394][ T4796] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 66.673780][ T4796] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 66.675267][ T4796] x11: ff80800008300a38 x10: 0000000000000000 x9 : c658d899364b3000 [ 66.676707][ T4796] x8 : c658d899364b3000 x7 : 0000000000000001 x6 : 0000000000000001 [ 66.678252][ T4796] x5 : ffff80001fda6fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 66.679655][ T4796] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 66.681034][ T4796] Call trace: [ 66.681604][ T4796] btrfs_replace_file_extents+0xd18/0x1284 [ 66.682590][ T4796] __btrfs_prealloc_file_range+0x35c/0xb80 [ 66.683562][ T4796] btrfs_prealloc_file_range+0x60/0x7c [ 66.684543][ T4796] btrfs_fallocate+0xcb0/0x1720 [ 66.685380][ T4796] vfs_fallocate+0x4a4/0x5fc [ 66.686146][ T4796] __arm64_sys_fallocate+0xc4/0x114 [ 66.687057][ T4796] invoke_syscall+0x98/0x28c [ 66.687877][ T4796] el0_svc_common+0x13c/0x258 [ 66.688744][ T4796] do_el0_svc+0x5c/0x140 [ 66.689511][ T4796] el0_svc+0x78/0x1d0 [ 66.690173][ T4796] el0t_64_sync_handler+0xcc/0xe4 [ 66.691070][ T4796] el0t_64_sync+0x1a0/0x1a4 [ 66.691846][ T4796] irq event stamp: 79278 [ 66.692553][ T4796] hardirqs last enabled at (79277): [] __up_console_sem+0xb4/0xfc [ 66.694177][ T4796] hardirqs last disabled at (79278): [] el1_dbg+0x24/0x80 [ 66.695646][ T4796] softirqs last enabled at (79258): [] handle_softirqs+0xa70/0xc14 [ 66.697281][ T4796] softirqs last disabled at (79221): [] __irq_exit_rcu+0x240/0x434 [ 66.698877][ T4796] ---[ end trace 7725cedd7cb04557 ]--- [ 66.701764][ T4796] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 66.703394][ T4796] BTRFS info (device loop0): forced readonly [ 66.740019][ T347] device veth1_macvtap left promiscuous mode [ 66.741202][ T347] device veth0_macvtap left promiscuous mode [ 66.742284][ T347] device veth1_vlan left promiscuous mode [ 66.743369][ T347] device veth0_vlan left promiscuous mode [ 66.852968][ T347] team0 (unregistering): Port device team_slave_1 removed [ 66.857291][ T347] team0 (unregistering): Port device team_slave_0 removed [ 66.862878][ T347] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 66.890789][ T4818] loop0: detected capacity change from 0 to 32768 [ 66.901621][ T347] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 66.949773][ T4818] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.21 (4818) [ 66.960736][ T4818] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 66.962228][ T4818] BTRFS info (device loop0): using free space tree [ 66.963309][ T4818] BTRFS info (device loop0): has skinny extents [ 66.983756][ T4818] BTRFS info (device loop0): enabling ssd optimizations [ 66.987591][ T4818] FAULT_INJECTION: forcing a failure. [ 66.987591][ T4818] name failslab, interval 1, probability 0, space 0, times 0 [ 66.992500][ T4818] CPU: 1 PID: 4818 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 66.993921][ T4818] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 66.994115][ T347] bond0 (unregistering): Released all slaves [ 66.995537][ T4818] Call trace: [ 66.997153][ T4818] dump_backtrace+0x0/0x458 [ 66.997855][ T4818] show_stack+0x2c/0x3c [ 66.998539][ T4818] __dump_stack+0x30/0x40 [ 66.999270][ T4818] dump_stack_lvl+0xf4/0x15c [ 67.000018][ T4818] dump_stack+0x1c/0x5c [ 67.000678][ T4818] should_fail+0x3c8/0x520 [ 67.001392][ T4818] __should_failslab+0xbc/0x10c [ 67.002210][ T4818] should_failslab+0x10/0x28 [ 67.002947][ T4818] slab_pre_alloc_hook+0x64/0xe8 [ 67.003818][ T4818] kmem_cache_alloc+0x94/0x3d8 [ 67.004663][ T4818] btrfs_add_delayed_data_ref+0x174/0xd64 [ 67.005691][ T4818] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 67.006832][ T4818] btrfs_insert_replace_extent+0x818/0x9b0 [ 67.007863][ T4818] btrfs_replace_file_extents+0x8a8/0x1284 [ 67.008828][ T4818] __btrfs_prealloc_file_range+0x35c/0xb80 [ 67.009846][ T4818] btrfs_prealloc_file_range+0x60/0x7c [ 67.010828][ T4818] btrfs_fallocate+0xcb0/0x1720 [ 67.011664][ T4818] vfs_fallocate+0x4a4/0x5fc [ 67.012466][ T4818] __arm64_sys_fallocate+0xc4/0x114 [ 67.013416][ T4818] invoke_syscall+0x98/0x28c [ 67.014191][ T4818] el0_svc_common+0x13c/0x258 [ 67.015036][ T4818] do_el0_svc+0x5c/0x140 [ 67.015763][ T4818] el0_svc+0x78/0x1d0 [ 67.016457][ T4818] el0t_64_sync_handler+0xcc/0xe4 [ 67.017353][ T4818] el0t_64_sync+0x1a0/0x1a4 [ 67.019828][ T4818] ------------[ cut here ]------------ [ 67.020745][ T4818] WARNING: CPU: 1 PID: 4818 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 67.022289][ T4818] Modules linked in: [ 67.022919][ T4818] CPU: 1 PID: 4818 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 67.024120][ T4818] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 67.025671][ T4818] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 67.026876][ T4818] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 67.027867][ T4818] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 67.028927][ T4818] sp : ffff8000200f76c0 [ 67.029618][ T4818] x29: ffff8000200f77e0 x28: 00000000fffffff4 x27: ffff8000200f7980 [ 67.031013][ T4818] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000401eee8 [ 67.032389][ T4818] x23: ffff0000e2ba8000 x22: ffff0000dd733840 x21: ffff0000cde4ed00 [ 67.033791][ T4818] x20: 1fffe0001bae6713 x19: ffff0000dd733898 x18: 0000000000000000 [ 67.035151][ T4818] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 67.036520][ T4818] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 67.037870][ T4818] x11: ff80800008300a38 x10: 0000000000000000 x9 : 80f84dc99c526e00 [ 67.039217][ T4818] x8 : 80f84dc99c526e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 67.040615][ T4818] x5 : ffff8000200f6fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 67.041994][ T4818] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 67.043336][ T4818] Call trace: [ 67.043893][ T4818] btrfs_replace_file_extents+0xd18/0x1284 [ 67.044938][ T4818] __btrfs_prealloc_file_range+0x35c/0xb80 [ 67.045974][ T4818] btrfs_prealloc_file_range+0x60/0x7c [ 67.046902][ T4818] btrfs_fallocate+0xcb0/0x1720 [ 67.047701][ T4818] vfs_fallocate+0x4a4/0x5fc [ 67.048444][ T4818] __arm64_sys_fallocate+0xc4/0x114 [ 67.049340][ T4818] invoke_syscall+0x98/0x28c [ 67.050155][ T4818] el0_svc_common+0x13c/0x258 [ 67.050939][ T4818] do_el0_svc+0x5c/0x140 [ 67.051660][ T4818] el0_svc+0x78/0x1d0 [ 67.052328][ T4818] el0t_64_sync_handler+0xcc/0xe4 [ 67.053229][ T4818] el0t_64_sync+0x1a0/0x1a4 [ 67.054002][ T4818] irq event stamp: 80074 [ 67.054753][ T4818] hardirqs last enabled at (80073): [] __up_console_sem+0xb4/0xfc [ 67.056321][ T4818] hardirqs last disabled at (80074): [] el1_dbg+0x24/0x80 [ 67.057722][ T4818] softirqs last enabled at (80054): [] handle_softirqs+0xa70/0xc14 [ 67.059340][ T4818] softirqs last disabled at (80017): [] __irq_exit_rcu+0x240/0x434 [ 67.060959][ T4818] ---[ end trace 7725cedd7cb04558 ]--- [ 67.062116][ T4818] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 67.063797][ T4818] BTRFS info (device loop0): forced readonly [ 67.252046][ T4840] loop0: detected capacity change from 0 to 32768 [ 67.293851][ T4840] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.22 (4840) [ 67.297145][ T4840] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 67.299417][ T4840] BTRFS info (device loop0): using free space tree [ 67.301890][ T4840] BTRFS info (device loop0): has skinny extents [ 67.317269][ T4840] BTRFS info (device loop0): enabling ssd optimizations [ 67.321887][ T4840] FAULT_INJECTION: forcing a failure. [ 67.321887][ T4840] name failslab, interval 1, probability 0, space 0, times 0 [ 67.324041][ T4840] CPU: 1 PID: 4840 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 67.325426][ T4840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 67.327038][ T4840] Call trace: [ 67.327538][ T4840] dump_backtrace+0x0/0x458 [ 67.328263][ T4840] show_stack+0x2c/0x3c [ 67.328985][ T4840] __dump_stack+0x30/0x40 [ 67.329781][ T4840] dump_stack_lvl+0xf4/0x15c [ 67.330591][ T4840] dump_stack+0x1c/0x5c [ 67.331281][ T4840] should_fail+0x3c8/0x520 [ 67.332019][ T4840] __should_failslab+0xbc/0x10c [ 67.332838][ T4840] should_failslab+0x10/0x28 [ 67.333584][ T4840] slab_pre_alloc_hook+0x64/0xe8 [ 67.334426][ T4840] kmem_cache_alloc+0x94/0x3d8 [ 67.335228][ T4840] btrfs_add_delayed_data_ref+0x174/0xd64 [ 67.336212][ T4840] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 67.337272][ T4840] btrfs_insert_replace_extent+0x818/0x9b0 [ 67.338258][ T4840] btrfs_replace_file_extents+0x8a8/0x1284 [ 67.339290][ T4840] __btrfs_prealloc_file_range+0x35c/0xb80 [ 67.340317][ T4840] btrfs_prealloc_file_range+0x60/0x7c [ 67.341245][ T4840] btrfs_fallocate+0xcb0/0x1720 [ 67.342072][ T4840] vfs_fallocate+0x4a4/0x5fc [ 67.342843][ T4840] __arm64_sys_fallocate+0xc4/0x114 [ 67.343748][ T4840] invoke_syscall+0x98/0x28c [ 67.344524][ T4840] el0_svc_common+0x13c/0x258 [ 67.345343][ T4840] do_el0_svc+0x5c/0x140 [ 67.346055][ T4840] el0_svc+0x78/0x1d0 [ 67.346746][ T4840] el0t_64_sync_handler+0xcc/0xe4 [ 67.347592][ T4840] el0t_64_sync+0x1a0/0x1a4 [ 67.349836][ T4840] ------------[ cut here ]------------ [ 67.350837][ T4840] WARNING: CPU: 1 PID: 4840 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 67.352467][ T4840] Modules linked in: [ 67.353110][ T4840] CPU: 1 PID: 4840 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 67.354444][ T4840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 67.355972][ T4840] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 67.357278][ T4840] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 67.358298][ T4840] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 67.359358][ T4840] sp : ffff8000200f76c0 [ 67.360047][ T4840] x29: ffff8000200f77e0 x28: 00000000fffffff4 x27: ffff8000200f7980 [ 67.361356][ T4840] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000401eee8 [ 67.362730][ T4840] x23: ffff0000e2ba93a0 x22: ffff0000dd7339a0 x21: ffff0000c2cdda00 [ 67.364090][ T4840] x20: 1fffe0001bae673f x19: ffff0000dd7339f8 x18: 0000000000000000 [ 67.365530][ T4840] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 67.366915][ T4840] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 67.368279][ T4840] x11: ff80800008300a38 x10: 0000000000000000 x9 : e60612820a4c9b00 [ 67.369650][ T4840] x8 : e60612820a4c9b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 67.370978][ T4840] x5 : ffff8000200f6fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 67.372334][ T4840] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 67.373733][ T4840] Call trace: [ 67.374288][ T4840] btrfs_replace_file_extents+0xd18/0x1284 [ 67.375308][ T4840] __btrfs_prealloc_file_range+0x35c/0xb80 [ 67.376337][ T4840] btrfs_prealloc_file_range+0x60/0x7c [ 67.377302][ T4840] btrfs_fallocate+0xcb0/0x1720 [ 67.378177][ T4840] vfs_fallocate+0x4a4/0x5fc [ 67.378973][ T4840] __arm64_sys_fallocate+0xc4/0x114 [ 67.379844][ T4840] invoke_syscall+0x98/0x28c [ 67.380640][ T4840] el0_svc_common+0x13c/0x258 [ 67.381435][ T4840] do_el0_svc+0x5c/0x140 [ 67.382129][ T4840] el0_svc+0x78/0x1d0 [ 67.382823][ T4840] el0t_64_sync_handler+0xcc/0xe4 [ 67.383701][ T4840] el0t_64_sync+0x1a0/0x1a4 [ 67.384458][ T4840] irq event stamp: 79010 [ 67.385181][ T4840] hardirqs last enabled at (79009): [] __up_console_sem+0xb4/0xfc [ 67.386781][ T4840] hardirqs last disabled at (79010): [] el1_dbg+0x24/0x80 [ 67.388280][ T4840] softirqs last enabled at (78990): [] handle_softirqs+0xa70/0xc14 [ 67.389870][ T4840] softirqs last disabled at (78941): [] __irq_exit_rcu+0x240/0x434 [ 67.391525][ T4840] ---[ end trace 7725cedd7cb04559 ]--- [ 67.394546][ T4840] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 67.396286][ T4840] BTRFS info (device loop0): forced readonly [ 67.398566][ T4543] Bluetooth: hci0: command 0x0419 tx timeout [ 67.590106][ T4862] loop0: detected capacity change from 0 to 32768 [ 67.653075][ T4862] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.23 (4862) [ 67.657208][ T4862] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 67.660050][ T4862] BTRFS info (device loop0): using free space tree [ 67.661219][ T4862] BTRFS info (device loop0): has skinny extents [ 67.670847][ T4862] BTRFS info (device loop0): enabling ssd optimizations [ 67.674395][ T4862] FAULT_INJECTION: forcing a failure. [ 67.674395][ T4862] name failslab, interval 1, probability 0, space 0, times 0 [ 67.676548][ T4862] CPU: 0 PID: 4862 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 67.678058][ T4862] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 67.679938][ T4862] Call trace: [ 67.680553][ T4862] dump_backtrace+0x0/0x458 [ 67.681470][ T4862] show_stack+0x2c/0x3c [ 67.682299][ T4862] __dump_stack+0x30/0x40 [ 67.683184][ T4862] dump_stack_lvl+0xf4/0x15c [ 67.684011][ T4862] dump_stack+0x1c/0x5c [ 67.684777][ T4862] should_fail+0x3c8/0x520 [ 67.685578][ T4862] __should_failslab+0xbc/0x10c [ 67.686469][ T4862] should_failslab+0x10/0x28 [ 67.687227][ T4862] slab_pre_alloc_hook+0x64/0xe8 [ 67.688087][ T4862] kmem_cache_alloc+0x94/0x3d8 [ 67.688924][ T4862] alloc_extent_map+0x28/0x128 [ 67.689792][ T4862] btrfs_drop_extent_cache+0x160/0xd60 [ 67.690728][ T4862] btrfs_drop_extents+0x2e8/0x2338 [ 67.691629][ T4862] btrfs_replace_file_extents+0x340/0x1284 [ 67.692589][ T4862] __btrfs_prealloc_file_range+0x35c/0xb80 [ 67.693582][ T4862] btrfs_prealloc_file_range+0x60/0x7c [ 67.694506][ T4862] btrfs_fallocate+0xcb0/0x1720 [ 67.695299][ T4862] vfs_fallocate+0x4a4/0x5fc [ 67.696109][ T4862] __arm64_sys_fallocate+0xc4/0x114 [ 67.696984][ T4862] invoke_syscall+0x98/0x28c [ 67.697795][ T4862] el0_svc_common+0x13c/0x258 [ 67.698629][ T4862] do_el0_svc+0x5c/0x140 [ 67.699389][ T4862] el0_svc+0x78/0x1d0 [ 67.700100][ T4862] el0t_64_sync_handler+0xcc/0xe4 [ 67.700924][ T4862] el0t_64_sync+0x1a0/0x1a4 [ 67.844142][ T4886] loop0: detected capacity change from 0 to 32768 [ 67.890097][ T4886] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.24 (4886) [ 67.951792][ T4886] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 67.953480][ T4886] BTRFS info (device loop0): using free space tree [ 67.954690][ T4886] BTRFS info (device loop0): has skinny extents [ 67.963428][ T4886] BTRFS info (device loop0): enabling ssd optimizations [ 67.967421][ T4886] FAULT_INJECTION: forcing a failure. [ 67.967421][ T4886] name failslab, interval 1, probability 0, space 0, times 0 [ 67.969887][ T4886] CPU: 1 PID: 4886 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 67.971279][ T4886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 67.972934][ T4886] Call trace: [ 67.973475][ T4886] dump_backtrace+0x0/0x458 [ 67.974231][ T4886] show_stack+0x2c/0x3c [ 67.974963][ T4886] __dump_stack+0x30/0x40 [ 67.975816][ T4886] dump_stack_lvl+0xf4/0x15c [ 67.976712][ T4886] dump_stack+0x1c/0x5c [ 67.977482][ T4886] should_fail+0x3c8/0x520 [ 67.978302][ T4886] __should_failslab+0xbc/0x10c [ 67.979170][ T4886] should_failslab+0x10/0x28 [ 67.980124][ T4886] slab_pre_alloc_hook+0x64/0xe8 [ 67.981112][ T4886] kmem_cache_alloc+0x94/0x3d8 [ 67.982022][ T4886] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 67.983112][ T4886] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 67.984288][ T4886] btrfs_insert_replace_extent+0x818/0x9b0 [ 67.985348][ T4886] btrfs_replace_file_extents+0x8a8/0x1284 [ 67.986364][ T4886] __btrfs_prealloc_file_range+0x35c/0xb80 [ 67.987376][ T4886] btrfs_prealloc_file_range+0x60/0x7c [ 67.988344][ T4886] btrfs_fallocate+0xcb0/0x1720 [ 67.989216][ T4886] vfs_fallocate+0x4a4/0x5fc [ 67.990032][ T4886] __arm64_sys_fallocate+0xc4/0x114 [ 67.990965][ T4886] invoke_syscall+0x98/0x28c [ 67.991774][ T4886] el0_svc_common+0x13c/0x258 [ 67.992616][ T4886] do_el0_svc+0x5c/0x140 [ 67.993381][ T4886] el0_svc+0x78/0x1d0 [ 67.994096][ T4886] el0t_64_sync_handler+0xcc/0xe4 [ 67.995016][ T4886] el0t_64_sync+0x1a0/0x1a4 [ 67.999357][ T4886] ------------[ cut here ]------------ [ 68.000300][ T4886] WARNING: CPU: 1 PID: 4886 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 68.001839][ T4886] Modules linked in: [ 68.002400][ T4886] CPU: 1 PID: 4886 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 68.003722][ T4886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 68.005286][ T4886] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 68.006542][ T4886] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 68.007477][ T4886] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 68.008484][ T4886] sp : ffff8000208776c0 [ 68.009204][ T4886] x29: ffff8000208777e0 x28: 00000000fffffff4 x27: ffff800020877980 [ 68.010823][ T4886] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000410eee8 [ 68.012298][ T4886] x23: ffff0000e2bcf5c0 x22: ffff0000dd733a50 x21: ffff0000ccde2800 [ 68.013692][ T4886] x20: 1fffe0001bae6755 x19: ffff0000dd733aa8 x18: 0000000000000000 [ 68.015124][ T4886] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 68.016475][ T4886] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 68.017787][ T4886] x11: ff80800008300a38 x10: 0000000000000000 x9 : 103ff16455619200 [ 68.019169][ T4886] x8 : 103ff16455619200 x7 : 0000000000000001 x6 : 0000000000000001 [ 68.020527][ T4886] x5 : ffff800020876fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 68.021900][ T4886] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 68.023383][ T4886] Call trace: [ 68.023970][ T4886] btrfs_replace_file_extents+0xd18/0x1284 [ 68.025026][ T4886] __btrfs_prealloc_file_range+0x35c/0xb80 [ 68.026103][ T4886] btrfs_prealloc_file_range+0x60/0x7c [ 68.027102][ T4886] btrfs_fallocate+0xcb0/0x1720 [ 68.028007][ T4886] vfs_fallocate+0x4a4/0x5fc [ 68.028839][ T4886] __arm64_sys_fallocate+0xc4/0x114 [ 68.029753][ T4886] invoke_syscall+0x98/0x28c [ 68.030545][ T4886] el0_svc_common+0x13c/0x258 [ 68.031332][ T4886] do_el0_svc+0x5c/0x140 [ 68.032086][ T4886] el0_svc+0x78/0x1d0 [ 68.032791][ T4886] el0t_64_sync_handler+0xcc/0xe4 [ 68.033639][ T4886] el0t_64_sync+0x1a0/0x1a4 [ 68.034383][ T4886] irq event stamp: 79422 [ 68.035099][ T4886] hardirqs last enabled at (79421): [] __up_console_sem+0xb4/0xfc [ 68.036726][ T4886] hardirqs last disabled at (79422): [] el1_dbg+0x24/0x80 [ 68.038217][ T4886] softirqs last enabled at (79400): [] handle_softirqs+0xa70/0xc14 [ 68.039878][ T4886] softirqs last disabled at (79365): [] __irq_exit_rcu+0x240/0x434 [ 68.041488][ T4886] ---[ end trace 7725cedd7cb0455a ]--- [ 68.043686][ T4886] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 68.045595][ T4886] BTRFS info (device loop0): forced readonly [ 68.249538][ T4908] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.25 (4908) [ 68.300312][ T4908] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 68.301767][ T4908] BTRFS info (device loop0): using free space tree [ 68.302862][ T4908] BTRFS info (device loop0): has skinny extents [ 68.310935][ T4908] BTRFS info (device loop0): enabling ssd optimizations [ 68.314425][ T4908] FAULT_INJECTION: forcing a failure. [ 68.314425][ T4908] name failslab, interval 1, probability 0, space 0, times 0 [ 68.316684][ T4908] CPU: 1 PID: 4908 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 68.318177][ T4908] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 68.320123][ T4908] Call trace: [ 68.320743][ T4908] dump_backtrace+0x0/0x458 [ 68.321549][ T4908] show_stack+0x2c/0x3c [ 68.322274][ T4908] __dump_stack+0x30/0x40 [ 68.323007][ T4908] dump_stack_lvl+0xf4/0x15c [ 68.323792][ T4908] dump_stack+0x1c/0x5c [ 68.324491][ T4908] should_fail+0x3c8/0x520 [ 68.325243][ T4908] __should_failslab+0xbc/0x10c [ 68.326075][ T4908] should_failslab+0x10/0x28 [ 68.326894][ T4908] slab_pre_alloc_hook+0x64/0xe8 [ 68.327813][ T4908] kmem_cache_alloc+0x94/0x3d8 [ 68.328619][ T4908] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 68.329597][ T4908] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 68.330694][ T4908] btrfs_insert_replace_extent+0x818/0x9b0 [ 68.331714][ T4908] btrfs_replace_file_extents+0x8a8/0x1284 [ 68.332708][ T4908] __btrfs_prealloc_file_range+0x35c/0xb80 [ 68.333683][ T4908] btrfs_prealloc_file_range+0x60/0x7c [ 68.334581][ T4908] btrfs_fallocate+0xcb0/0x1720 [ 68.335410][ T4908] vfs_fallocate+0x4a4/0x5fc [ 68.336184][ T4908] __arm64_sys_fallocate+0xc4/0x114 [ 68.337072][ T4908] invoke_syscall+0x98/0x28c [ 68.337887][ T4908] el0_svc_common+0x13c/0x258 [ 68.338699][ T4908] do_el0_svc+0x5c/0x140 [ 68.339423][ T4908] el0_svc+0x78/0x1d0 [ 68.340158][ T4908] el0t_64_sync_handler+0xcc/0xe4 [ 68.341057][ T4908] el0t_64_sync+0x1a0/0x1a4 [ 68.343633][ T4908] ------------[ cut here ]------------ [ 68.344636][ T4908] WARNING: CPU: 1 PID: 4908 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 68.346174][ T4908] Modules linked in: [ 68.346790][ T4908] CPU: 1 PID: 4908 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 68.348406][ T4908] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 68.350336][ T4908] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 68.351837][ T4908] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 68.353037][ T4908] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 68.354256][ T4908] sp : ffff8000208676c0 [ 68.355067][ T4908] x29: ffff8000208677e0 x28: 00000000fffffff4 x27: ffff800020867980 [ 68.356651][ T4908] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000410cee8 [ 68.358195][ T4908] x23: ffff0000e2bab110 x22: ffff0000dd733bb0 x21: ffff0000c818ac00 [ 68.359690][ T4908] x20: 1fffe0001bae6781 x19: ffff0000dd733c08 x18: 0000000000000000 [ 68.361214][ T4908] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 68.362734][ T4908] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 68.364127][ T4908] x11: ff80800008300a38 x10: 0000000000000000 x9 : d845d8eeed288c00 [ 68.365627][ T4908] x8 : d845d8eeed288c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 68.367118][ T4908] x5 : ffff800020866fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 68.368639][ T4908] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 68.370106][ T4908] Call trace: [ 68.370753][ T4908] btrfs_replace_file_extents+0xd18/0x1284 [ 68.371993][ T4908] __btrfs_prealloc_file_range+0x35c/0xb80 [ 68.373237][ T4908] btrfs_prealloc_file_range+0x60/0x7c [ 68.374242][ T4908] btrfs_fallocate+0xcb0/0x1720 [ 68.375145][ T4908] vfs_fallocate+0x4a4/0x5fc [ 68.376008][ T4908] __arm64_sys_fallocate+0xc4/0x114 [ 68.376996][ T4908] invoke_syscall+0x98/0x28c [ 68.377783][ T4908] el0_svc_common+0x13c/0x258 [ 68.378619][ T4908] do_el0_svc+0x5c/0x140 [ 68.379365][ T4908] el0_svc+0x78/0x1d0 [ 68.380084][ T4908] el0t_64_sync_handler+0xcc/0xe4 [ 68.380979][ T4908] el0t_64_sync+0x1a0/0x1a4 [ 68.381726][ T4908] irq event stamp: 79312 [ 68.382429][ T4908] hardirqs last enabled at (79311): [] __up_console_sem+0xb4/0xfc [ 68.384118][ T4908] hardirqs last disabled at (79312): [] el1_dbg+0x24/0x80 [ 68.385623][ T4908] softirqs last enabled at (79290): [] handle_softirqs+0xa70/0xc14 [ 68.387240][ T4908] softirqs last disabled at (79217): [] __irq_exit_rcu+0x240/0x434 [ 68.389165][ T4908] ---[ end trace 7725cedd7cb0455b ]--- [ 68.392059][ T4908] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 68.393906][ T4908] BTRFS info (device loop0): forced readonly [ 68.629751][ T4930] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.26 (4930) [ 68.674969][ T4930] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 68.676571][ T4930] BTRFS info (device loop0): using free space tree [ 68.677667][ T4930] BTRFS info (device loop0): has skinny extents [ 68.737988][ T4930] BTRFS info (device loop0): enabling ssd optimizations [ 68.741695][ T4930] FAULT_INJECTION: forcing a failure. [ 68.741695][ T4930] name failslab, interval 1, probability 0, space 0, times 0 [ 68.743793][ T4930] CPU: 1 PID: 4930 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 68.745168][ T4930] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 68.746799][ T4930] Call trace: [ 68.747311][ T4930] dump_backtrace+0x0/0x458 [ 68.748033][ T4930] show_stack+0x2c/0x3c [ 68.748755][ T4930] __dump_stack+0x30/0x40 [ 68.749563][ T4930] dump_stack_lvl+0xf4/0x15c [ 68.750416][ T4930] dump_stack+0x1c/0x5c [ 68.751190][ T4930] should_fail+0x3c8/0x520 [ 68.751994][ T4930] __should_failslab+0xbc/0x10c [ 68.752881][ T4930] should_failslab+0x10/0x28 [ 68.753711][ T4930] slab_pre_alloc_hook+0x64/0xe8 [ 68.754618][ T4930] kmem_cache_alloc+0x94/0x3d8 [ 68.755498][ T4930] btrfs_add_delayed_data_ref+0x174/0xd64 [ 68.756575][ T4930] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 68.757676][ T4930] btrfs_insert_replace_extent+0x818/0x9b0 [ 68.758690][ T4930] btrfs_replace_file_extents+0x8a8/0x1284 [ 68.759658][ T4930] __btrfs_prealloc_file_range+0x35c/0xb80 [ 68.760613][ T4930] btrfs_prealloc_file_range+0x60/0x7c [ 68.761607][ T4930] btrfs_fallocate+0xcb0/0x1720 [ 68.762505][ T4930] vfs_fallocate+0x4a4/0x5fc [ 68.763358][ T4930] __arm64_sys_fallocate+0xc4/0x114 [ 68.764308][ T4930] invoke_syscall+0x98/0x28c [ 68.765105][ T4930] el0_svc_common+0x13c/0x258 [ 68.765942][ T4930] do_el0_svc+0x5c/0x140 [ 68.766712][ T4930] el0_svc+0x78/0x1d0 [ 68.767455][ T4930] el0t_64_sync_handler+0xcc/0xe4 [ 68.768399][ T4930] el0t_64_sync+0x1a0/0x1a4 [ 68.771159][ T4930] ------------[ cut here ]------------ [ 68.772229][ T4930] WARNING: CPU: 1 PID: 4930 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 68.774009][ T4930] Modules linked in: [ 68.774726][ T4930] CPU: 1 PID: 4930 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 68.776251][ T4930] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 68.777988][ T4930] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 68.779350][ T4930] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 68.780406][ T4930] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 68.781480][ T4930] sp : ffff8000208676c0 [ 68.782241][ T4930] x29: ffff8000208677e0 x28: 00000000fffffff4 x27: ffff800020867980 [ 68.783698][ T4930] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000410cee8 [ 68.785190][ T4930] x23: ffff0000e2bace80 x22: ffff0000dd733d10 x21: ffff0000ed211e00 [ 68.786710][ T4930] x20: 1fffe0001bae67ad x19: ffff0000dd733d68 x18: 0000000000000000 [ 68.788213][ T4930] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 68.789735][ T4930] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 68.791242][ T4930] x11: ff80800008300a38 x10: 0000000000000000 x9 : ba2b6a7111ec0700 [ 68.792769][ T4930] x8 : ba2b6a7111ec0700 x7 : 0000000000000001 x6 : 0000000000000001 [ 68.794298][ T4930] x5 : ffff800020866fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 68.795823][ T4930] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 68.797360][ T4930] Call trace: [ 68.797938][ T4930] btrfs_replace_file_extents+0xd18/0x1284 [ 68.798986][ T4930] __btrfs_prealloc_file_range+0x35c/0xb80 [ 68.800032][ T4930] btrfs_prealloc_file_range+0x60/0x7c [ 68.800994][ T4930] btrfs_fallocate+0xcb0/0x1720 [ 68.801818][ T4930] vfs_fallocate+0x4a4/0x5fc [ 68.802629][ T4930] __arm64_sys_fallocate+0xc4/0x114 [ 68.803469][ T4930] invoke_syscall+0x98/0x28c [ 68.804202][ T4930] el0_svc_common+0x13c/0x258 [ 68.804980][ T4930] do_el0_svc+0x5c/0x140 [ 68.805713][ T4930] el0_svc+0x78/0x1d0 [ 68.806427][ T4930] el0t_64_sync_handler+0xcc/0xe4 [ 68.807279][ T4930] el0t_64_sync+0x1a0/0x1a4 [ 68.808075][ T4930] irq event stamp: 78992 [ 68.808800][ T4930] hardirqs last enabled at (78991): [] __up_console_sem+0xb4/0xfc [ 68.810450][ T4930] hardirqs last disabled at (78992): [] el1_dbg+0x24/0x80 [ 68.811964][ T4930] softirqs last enabled at (78972): [] handle_softirqs+0xa70/0xc14 [ 68.813510][ T4930] softirqs last disabled at (78937): [] __irq_exit_rcu+0x240/0x434 [ 68.815086][ T4930] ---[ end trace 7725cedd7cb0455c ]--- [ 68.816504][ T4930] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 68.818375][ T4930] BTRFS info (device loop0): forced readonly [ 68.974008][ T4952] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.27 (4952) [ 68.977278][ T4952] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 68.978888][ T4952] BTRFS info (device loop0): using free space tree [ 68.979955][ T4952] BTRFS info (device loop0): has skinny extents [ 69.018543][ T4952] BTRFS info (device loop0): enabling ssd optimizations [ 69.022076][ T4952] FAULT_INJECTION: forcing a failure. [ 69.022076][ T4952] name failslab, interval 1, probability 0, space 0, times 0 [ 69.024187][ T4952] CPU: 1 PID: 4952 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 69.025684][ T4952] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 69.027318][ T4952] Call trace: [ 69.027849][ T4952] dump_backtrace+0x0/0x458 [ 69.028610][ T4952] show_stack+0x2c/0x3c [ 69.029328][ T4952] __dump_stack+0x30/0x40 [ 69.030072][ T4952] dump_stack_lvl+0xf4/0x15c [ 69.030922][ T4952] dump_stack+0x1c/0x5c [ 69.031689][ T4952] should_fail+0x3c8/0x520 [ 69.032528][ T4952] __should_failslab+0xbc/0x10c [ 69.033337][ T4952] should_failslab+0x10/0x28 [ 69.034145][ T4952] slab_pre_alloc_hook+0x64/0xe8 [ 69.034952][ T4952] kmem_cache_alloc+0x94/0x3d8 [ 69.035796][ T4952] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 69.036788][ T4952] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 69.037890][ T4952] btrfs_insert_replace_extent+0x818/0x9b0 [ 69.038883][ T4952] btrfs_replace_file_extents+0x8a8/0x1284 [ 69.039873][ T4952] __btrfs_prealloc_file_range+0x35c/0xb80 [ 69.040887][ T4952] btrfs_prealloc_file_range+0x60/0x7c [ 69.041868][ T4952] btrfs_fallocate+0xcb0/0x1720 [ 69.042782][ T4952] vfs_fallocate+0x4a4/0x5fc [ 69.043608][ T4952] __arm64_sys_fallocate+0xc4/0x114 [ 69.044659][ T4952] invoke_syscall+0x98/0x28c [ 69.045482][ T4952] el0_svc_common+0x13c/0x258 [ 69.046249][ T4952] do_el0_svc+0x5c/0x140 [ 69.046989][ T4952] el0_svc+0x78/0x1d0 [ 69.047706][ T4952] el0t_64_sync_handler+0xcc/0xe4 [ 69.048596][ T4952] el0t_64_sync+0x1a0/0x1a4 [ 69.050795][ T4952] ------------[ cut here ]------------ [ 69.051749][ T4952] WARNING: CPU: 1 PID: 4952 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 69.053308][ T4952] Modules linked in: [ 69.054008][ T4952] CPU: 1 PID: 4952 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 69.055461][ T4952] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 69.057300][ T4952] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 69.058729][ T4952] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 69.059983][ T4952] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 69.061133][ T4952] sp : ffff800020b776c0 [ 69.061851][ T4952] x29: ffff800020b777e0 x28: 00000000fffffff4 x27: ffff800020b77980 [ 69.063258][ T4952] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000416eee8 [ 69.064704][ T4952] x23: ffff0000e2baebf0 x22: ffff0000dd733e70 x21: ffff0000ca80d200 [ 69.066170][ T4952] x20: 1fffe0001bae67d9 x19: ffff0000dd733ec8 x18: 0000000000000000 [ 69.067618][ T4952] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 69.068992][ T4952] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 69.070300][ T4952] x11: ff80800008300a38 x10: 0000000000000000 x9 : 8a32df0349dde000 [ 69.071591][ T4952] x8 : 8a32df0349dde000 x7 : 0000000000000001 x6 : 0000000000000001 [ 69.073002][ T4952] x5 : ffff800020b76fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 69.074415][ T4952] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 69.075863][ T4952] Call trace: [ 69.076456][ T4952] btrfs_replace_file_extents+0xd18/0x1284 [ 69.077461][ T4952] __btrfs_prealloc_file_range+0x35c/0xb80 [ 69.078478][ T4952] btrfs_prealloc_file_range+0x60/0x7c [ 69.079470][ T4952] btrfs_fallocate+0xcb0/0x1720 [ 69.080298][ T4952] vfs_fallocate+0x4a4/0x5fc [ 69.081094][ T4952] __arm64_sys_fallocate+0xc4/0x114 [ 69.082003][ T4952] invoke_syscall+0x98/0x28c [ 69.082803][ T4952] el0_svc_common+0x13c/0x258 [ 69.083533][ T4952] do_el0_svc+0x5c/0x140 [ 69.084304][ T4952] el0_svc+0x78/0x1d0 [ 69.085015][ T4952] el0t_64_sync_handler+0xcc/0xe4 [ 69.085866][ T4952] el0t_64_sync+0x1a0/0x1a4 [ 69.086643][ T4952] irq event stamp: 79154 [ 69.087365][ T4952] hardirqs last enabled at (79153): [] __up_console_sem+0xb4/0xfc [ 69.089030][ T4952] hardirqs last disabled at (79154): [] el1_dbg+0x24/0x80 [ 69.090565][ T4952] softirqs last enabled at (79132): [] handle_softirqs+0xa70/0xc14 [ 69.092273][ T4952] softirqs last disabled at (79021): [] __irq_exit_rcu+0x240/0x434 [ 69.093950][ T4952] ---[ end trace 7725cedd7cb0455d ]--- [ 69.095838][ T4952] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 69.097464][ T4952] BTRFS info (device loop0): forced readonly [ 69.310377][ T4973] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.28 (4973) [ 69.313683][ T4973] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 69.315316][ T4973] BTRFS info (device loop0): using free space tree [ 69.316518][ T4973] BTRFS info (device loop0): has skinny extents [ 69.326782][ T4973] BTRFS info (device loop0): enabling ssd optimizations [ 69.330899][ T4973] FAULT_INJECTION: forcing a failure. [ 69.330899][ T4973] name failslab, interval 1, probability 0, space 0, times 0 [ 69.333035][ T4973] CPU: 1 PID: 4973 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 69.334395][ T4973] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 69.336074][ T4973] Call trace: [ 69.336594][ T4973] dump_backtrace+0x0/0x458 [ 69.337318][ T4973] show_stack+0x2c/0x3c [ 69.337966][ T4973] __dump_stack+0x30/0x40 [ 69.338627][ T4973] dump_stack_lvl+0xf4/0x15c [ 69.339378][ T4973] dump_stack+0x1c/0x5c [ 69.340060][ T4973] should_fail+0x3c8/0x520 [ 69.340854][ T4973] __should_failslab+0xbc/0x10c [ 69.341739][ T4973] should_failslab+0x10/0x28 [ 69.342558][ T4973] slab_pre_alloc_hook+0x64/0xe8 [ 69.343423][ T4973] kmem_cache_alloc+0x94/0x3d8 [ 69.344259][ T4973] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 69.345238][ T4973] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 69.346322][ T4973] btrfs_insert_replace_extent+0x818/0x9b0 [ 69.347338][ T4973] btrfs_replace_file_extents+0x8a8/0x1284 [ 69.348328][ T4973] __btrfs_prealloc_file_range+0x35c/0xb80 [ 69.349327][ T4973] btrfs_prealloc_file_range+0x60/0x7c [ 69.350301][ T4973] btrfs_fallocate+0xcb0/0x1720 [ 69.351155][ T4973] vfs_fallocate+0x4a4/0x5fc [ 69.351968][ T4973] __arm64_sys_fallocate+0xc4/0x114 [ 69.352856][ T4973] invoke_syscall+0x98/0x28c [ 69.353678][ T4973] el0_svc_common+0x13c/0x258 [ 69.354510][ T4973] do_el0_svc+0x5c/0x140 [ 69.355280][ T4973] el0_svc+0x78/0x1d0 [ 69.355993][ T4973] el0t_64_sync_handler+0xcc/0xe4 [ 69.356896][ T4973] el0t_64_sync+0x1a0/0x1a4 [ 69.359569][ T4973] ------------[ cut here ]------------ [ 69.360658][ T4973] WARNING: CPU: 1 PID: 4973 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 69.362262][ T4973] Modules linked in: [ 69.362869][ T4973] CPU: 1 PID: 4973 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 69.364229][ T4973] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 69.365857][ T4973] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 69.367083][ T4973] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 69.368023][ T4973] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 69.369059][ T4973] sp : ffff800020c276c0 [ 69.369772][ T4973] x29: ffff800020c277e0 x28: 00000000fffffff4 x27: ffff800020c27980 [ 69.371130][ T4973] x26: 0000000000000000 x25: dfff800000000000 x24: ffff700004184ee8 [ 69.372522][ T4973] x23: ffff0000e2899d70 x22: ffff0000dd733f20 x21: ffff0000db175500 [ 69.373899][ T4973] x20: 1fffe0001bae67ef x19: ffff0000dd733f78 x18: 0000000000000000 [ 69.375327][ T4973] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 69.376626][ T4973] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 69.377955][ T4973] x11: ff80800008300a38 x10: 0000000000000000 x9 : bb4d11eab04ec700 [ 69.379332][ T4973] x8 : bb4d11eab04ec700 x7 : 0000000000000001 x6 : 0000000000000001 [ 69.380721][ T4973] x5 : ffff800020c26fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 69.382062][ T4973] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 69.383397][ T4973] Call trace: [ 69.383939][ T4973] btrfs_replace_file_extents+0xd18/0x1284 [ 69.384962][ T4973] __btrfs_prealloc_file_range+0x35c/0xb80 [ 69.386021][ T4973] btrfs_prealloc_file_range+0x60/0x7c [ 69.386931][ T4973] btrfs_fallocate+0xcb0/0x1720 [ 69.387762][ T4973] vfs_fallocate+0x4a4/0x5fc [ 69.388585][ T4973] __arm64_sys_fallocate+0xc4/0x114 [ 69.389522][ T4973] invoke_syscall+0x98/0x28c [ 69.390307][ T4973] el0_svc_common+0x13c/0x258 [ 69.391173][ T4973] do_el0_svc+0x5c/0x140 [ 69.391958][ T4973] el0_svc+0x78/0x1d0 [ 69.392716][ T4973] el0t_64_sync_handler+0xcc/0xe4 [ 69.393615][ T4973] el0t_64_sync+0x1a0/0x1a4 [ 69.394352][ T4973] irq event stamp: 78854 [ 69.395059][ T4973] hardirqs last enabled at (78853): [] __up_console_sem+0xb4/0xfc [ 69.396712][ T4973] hardirqs last disabled at (78854): [] el1_dbg+0x24/0x80 [ 69.398124][ T4973] softirqs last enabled at (78832): [] handle_softirqs+0xa70/0xc14 [ 69.399711][ T4973] softirqs last disabled at (78761): [] __irq_exit_rcu+0x240/0x434 [ 69.401377][ T4973] ---[ end trace 7725cedd7cb0455e ]--- [ 69.404405][ T4973] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 69.405936][ T4973] BTRFS info (device loop0): forced readonly [ 69.589538][ T4995] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.29 (4995) [ 69.592819][ T4995] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 69.594380][ T4995] BTRFS info (device loop0): using free space tree [ 69.595549][ T4995] BTRFS info (device loop0): has skinny extents [ 69.606470][ T4995] BTRFS info (device loop0): enabling ssd optimizations [ 69.609758][ T13] cfg80211: failed to load regulatory.db [ 69.610012][ T2065] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.611912][ T2065] ieee802154 phy1 wpan1: encryption failed: -22 [ 69.629531][ T4995] FAULT_INJECTION: forcing a failure. [ 69.629531][ T4995] name failslab, interval 1, probability 0, space 0, times 0 [ 69.637999][ T4995] CPU: 0 PID: 4995 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 69.639665][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 69.641451][ T4995] Call trace: [ 69.642063][ T4995] dump_backtrace+0x0/0x458 [ 69.642869][ T4995] show_stack+0x2c/0x3c [ 69.643643][ T4995] __dump_stack+0x30/0x40 [ 69.644451][ T4995] dump_stack_lvl+0xf4/0x15c [ 69.645274][ T4995] dump_stack+0x1c/0x5c [ 69.646031][ T4995] should_fail+0x3c8/0x520 [ 69.646800][ T4995] __should_failslab+0xbc/0x10c [ 69.647670][ T4995] should_failslab+0x10/0x28 [ 69.648510][ T4995] slab_pre_alloc_hook+0x64/0xe8 [ 69.649432][ T4995] kmem_cache_alloc+0x94/0x3d8 [ 69.650317][ T4995] btrfs_add_delayed_data_ref+0x174/0xd64 [ 69.651387][ T4995] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 69.652469][ T4995] btrfs_insert_replace_extent+0x818/0x9b0 [ 69.653446][ T4995] btrfs_replace_file_extents+0x8a8/0x1284 [ 69.654632][ T4995] __btrfs_prealloc_file_range+0x35c/0xb80 [ 69.655809][ T4995] btrfs_prealloc_file_range+0x60/0x7c [ 69.656875][ T4995] btrfs_fallocate+0xcb0/0x1720 [ 69.657816][ T4995] vfs_fallocate+0x4a4/0x5fc [ 69.658677][ T4995] __arm64_sys_fallocate+0xc4/0x114 [ 69.659756][ T4995] invoke_syscall+0x98/0x28c [ 69.660739][ T4995] el0_svc_common+0x13c/0x258 [ 69.661711][ T4995] do_el0_svc+0x5c/0x140 [ 69.662408][ T4995] el0_svc+0x78/0x1d0 [ 69.663060][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 69.663863][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 69.665072][ T4995] ------------[ cut here ]------------ [ 69.666098][ T4995] WARNING: CPU: 0 PID: 4995 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 69.667768][ T4995] Modules linked in: [ 69.668404][ T4995] CPU: 0 PID: 4995 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 69.670014][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 69.671897][ T4995] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 69.673325][ T4995] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 69.674449][ T4995] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 69.675554][ T4995] sp : ffff800020c276c0 [ 69.676309][ T4995] x29: ffff800020c277e0 x28: 00000000fffffff4 x27: ffff800020c27980 [ 69.677686][ T4995] x26: 0000000000000000 x25: dfff800000000000 x24: ffff700004184ee8 [ 69.679106][ T4995] x23: ffff0000e2baf5c0 x22: ffff0000dd733210 x21: ffff0000d4fdaa00 [ 69.680538][ T4995] x20: 1fffe0001bae664d x19: ffff0000dd733268 x18: 0000000000000000 [ 69.681958][ T4995] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 69.683356][ T4995] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 69.684778][ T4995] x11: ff80800008300a38 x10: 0000000000000000 x9 : 76f82be2de54cf00 [ 69.686206][ T4995] x8 : 76f82be2de54cf00 x7 : 0000000000000001 x6 : 0000000000000001 [ 69.687599][ T4995] x5 : ffff800020c26fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 69.688897][ T4995] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 69.690258][ T4995] Call trace: [ 69.690773][ T4995] btrfs_replace_file_extents+0xd18/0x1284 [ 69.691719][ T4995] __btrfs_prealloc_file_range+0x35c/0xb80 [ 69.692722][ T4995] btrfs_prealloc_file_range+0x60/0x7c [ 69.693697][ T4995] btrfs_fallocate+0xcb0/0x1720 [ 69.694623][ T4995] vfs_fallocate+0x4a4/0x5fc [ 69.695430][ T4995] __arm64_sys_fallocate+0xc4/0x114 [ 69.696509][ T4995] invoke_syscall+0x98/0x28c [ 69.697356][ T4995] el0_svc_common+0x13c/0x258 [ 69.698172][ T4995] do_el0_svc+0x5c/0x140 [ 69.698906][ T4995] el0_svc+0x78/0x1d0 [ 69.699585][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 69.700483][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 69.701265][ T4995] irq event stamp: 78968 [ 69.702005][ T4995] hardirqs last enabled at (78967): [] __up_console_sem+0xb4/0xfc [ 69.703638][ T4995] hardirqs last disabled at (78968): [] el1_dbg+0x24/0x80 [ 69.705198][ T4995] softirqs last enabled at (78948): [] handle_softirqs+0xa70/0xc14 [ 69.706890][ T4995] softirqs last disabled at (78907): [] __irq_exit_rcu+0x240/0x434 [ 69.708581][ T4995] ---[ end trace 7725cedd7cb0455f ]--- [ 69.709896][ T4995] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 69.711582][ T4995] BTRFS info (device loop0): forced readonly [ 69.945903][ T5016] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.30 (5016) [ 69.949810][ T5016] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 69.951225][ T5016] BTRFS info (device loop0): using free space tree [ 69.952368][ T5016] BTRFS info (device loop0): has skinny extents [ 70.038590][ T5016] BTRFS info (device loop0): enabling ssd optimizations [ 70.042128][ T5016] FAULT_INJECTION: forcing a failure. [ 70.042128][ T5016] name failslab, interval 1, probability 0, space 0, times 0 [ 70.044185][ T5016] CPU: 0 PID: 5016 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 70.045553][ T5016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.047109][ T5016] Call trace: [ 70.047612][ T5016] dump_backtrace+0x0/0x458 [ 70.048422][ T5016] show_stack+0x2c/0x3c [ 70.049123][ T5016] __dump_stack+0x30/0x40 [ 70.049874][ T5016] dump_stack_lvl+0xf4/0x15c [ 70.050662][ T5016] dump_stack+0x1c/0x5c [ 70.051398][ T5016] should_fail+0x3c8/0x520 [ 70.052227][ T5016] __should_failslab+0xbc/0x10c [ 70.053150][ T5016] should_failslab+0x10/0x28 [ 70.053988][ T5016] slab_pre_alloc_hook+0x64/0xe8 [ 70.054905][ T5016] kmem_cache_alloc+0x94/0x3d8 [ 70.055726][ T5016] btrfs_add_delayed_data_ref+0x174/0xd64 [ 70.056719][ T5016] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 70.057787][ T5016] btrfs_insert_replace_extent+0x818/0x9b0 [ 70.058802][ T5016] btrfs_replace_file_extents+0x8a8/0x1284 [ 70.059819][ T5016] __btrfs_prealloc_file_range+0x35c/0xb80 [ 70.060790][ T5016] btrfs_prealloc_file_range+0x60/0x7c [ 70.061712][ T5016] btrfs_fallocate+0xcb0/0x1720 [ 70.062564][ T5016] vfs_fallocate+0x4a4/0x5fc [ 70.063320][ T5016] __arm64_sys_fallocate+0xc4/0x114 [ 70.064129][ T5016] invoke_syscall+0x98/0x28c [ 70.064890][ T5016] el0_svc_common+0x13c/0x258 [ 70.065726][ T5016] do_el0_svc+0x5c/0x140 [ 70.066440][ T5016] el0_svc+0x78/0x1d0 [ 70.067108][ T5016] el0t_64_sync_handler+0xcc/0xe4 [ 70.067962][ T5016] el0t_64_sync+0x1a0/0x1a4 [ 70.069806][ T5016] ------------[ cut here ]------------ [ 70.070890][ T5016] WARNING: CPU: 0 PID: 5016 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 70.072525][ T5016] Modules linked in: [ 70.073189][ T5016] CPU: 0 PID: 5016 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 70.074584][ T5016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.076256][ T5016] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 70.077586][ T5016] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 70.078584][ T5016] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 70.079629][ T5016] sp : ffff800020c276c0 [ 70.080304][ T5016] x29: ffff800020c277e0 x28: 00000000fffffff4 x27: ffff800020c27980 [ 70.081723][ T5016] x26: 0000000000000000 x25: dfff800000000000 x24: ffff700004184ee8 [ 70.083206][ T5016] x23: ffff0000e289bae0 x22: ffff0000ded99160 x21: ffff0000cb40c700 [ 70.084667][ T5016] x20: 1fffe0001bdb3237 x19: ffff0000ded991b8 x18: 0000000000000000 [ 70.086147][ T5016] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 70.087638][ T5016] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 70.089062][ T5016] x11: ff80800008300a38 x10: 0000000000000000 x9 : 0b580346485e0d00 [ 70.090435][ T5016] x8 : 0b580346485e0d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 70.091908][ T5016] x5 : ffff800020c26fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 70.093487][ T5016] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 70.095033][ T5016] Call trace: [ 70.095666][ T5016] btrfs_replace_file_extents+0xd18/0x1284 [ 70.096875][ T5016] __btrfs_prealloc_file_range+0x35c/0xb80 [ 70.098131][ T5016] btrfs_prealloc_file_range+0x60/0x7c [ 70.099319][ T5016] btrfs_fallocate+0xcb0/0x1720 [ 70.100318][ T5016] vfs_fallocate+0x4a4/0x5fc [ 70.101293][ T5016] __arm64_sys_fallocate+0xc4/0x114 [ 70.102388][ T5016] invoke_syscall+0x98/0x28c [ 70.103363][ T5016] el0_svc_common+0x13c/0x258 [ 70.104369][ T5016] do_el0_svc+0x5c/0x140 [ 70.105289][ T5016] el0_svc+0x78/0x1d0 [ 70.106147][ T5016] el0t_64_sync_handler+0xcc/0xe4 [ 70.107227][ T5016] el0t_64_sync+0x1a0/0x1a4 [ 70.108047][ T5016] irq event stamp: 79222 [ 70.108810][ T5016] hardirqs last enabled at (79221): [] __up_console_sem+0xb4/0xfc [ 70.110540][ T5016] hardirqs last disabled at (79222): [] el1_dbg+0x24/0x80 [ 70.112118][ T5016] softirqs last enabled at (79202): [] handle_softirqs+0xa70/0xc14 [ 70.113927][ T5016] softirqs last disabled at (79137): [] __irq_exit_rcu+0x240/0x434 [ 70.115568][ T5016] ---[ end trace 7725cedd7cb04560 ]--- [ 70.117749][ T5016] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 70.119984][ T5016] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:10 executed programs: 18 [ 70.306740][ T5038] set_capacity_and_notify: 6 callbacks suppressed [ 70.306749][ T5038] loop0: detected capacity change from 0 to 32768 [ 70.353495][ T5038] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.31 (5038) [ 70.356658][ T5038] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 70.358249][ T5038] BTRFS info (device loop0): using free space tree [ 70.362383][ T5038] BTRFS info (device loop0): has skinny extents [ 70.369892][ T5038] BTRFS info (device loop0): enabling ssd optimizations [ 70.373112][ T5038] FAULT_INJECTION: forcing a failure. [ 70.373112][ T5038] name failslab, interval 1, probability 0, space 0, times 0 [ 70.375179][ T5038] CPU: 0 PID: 5038 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 70.376699][ T5038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.378608][ T5038] Call trace: [ 70.379216][ T5038] dump_backtrace+0x0/0x458 [ 70.380101][ T5038] show_stack+0x2c/0x3c [ 70.380923][ T5038] __dump_stack+0x30/0x40 [ 70.381759][ T5038] dump_stack_lvl+0xf4/0x15c [ 70.382632][ T5038] dump_stack+0x1c/0x5c [ 70.383373][ T5038] should_fail+0x3c8/0x520 [ 70.384193][ T5038] __should_failslab+0xbc/0x10c [ 70.385070][ T5038] should_failslab+0x10/0x28 [ 70.385889][ T5038] slab_pre_alloc_hook+0x64/0xe8 [ 70.386755][ T5038] kmem_cache_alloc+0x94/0x3d8 [ 70.387639][ T5038] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 70.388691][ T5038] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 70.389833][ T5038] btrfs_insert_replace_extent+0x818/0x9b0 [ 70.390878][ T5038] btrfs_replace_file_extents+0x8a8/0x1284 [ 70.391855][ T5038] __btrfs_prealloc_file_range+0x35c/0xb80 [ 70.392857][ T5038] btrfs_prealloc_file_range+0x60/0x7c [ 70.393842][ T5038] btrfs_fallocate+0xcb0/0x1720 [ 70.394699][ T5038] vfs_fallocate+0x4a4/0x5fc [ 70.395459][ T5038] __arm64_sys_fallocate+0xc4/0x114 [ 70.396346][ T5038] invoke_syscall+0x98/0x28c [ 70.397132][ T5038] el0_svc_common+0x13c/0x258 [ 70.397920][ T5038] do_el0_svc+0x5c/0x140 [ 70.398644][ T5038] el0_svc+0x78/0x1d0 [ 70.399314][ T5038] el0t_64_sync_handler+0xcc/0xe4 [ 70.400198][ T5038] el0t_64_sync+0x1a0/0x1a4 [ 70.401850][ T5038] ------------[ cut here ]------------ [ 70.402910][ T5038] WARNING: CPU: 0 PID: 5038 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 70.404420][ T5038] Modules linked in: [ 70.405062][ T5038] CPU: 0 PID: 5038 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 70.406479][ T5038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.408059][ T5038] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 70.409393][ T5038] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 70.410454][ T5038] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 70.411738][ T5038] sp : ffff800020b776c0 [ 70.412615][ T5038] x29: ffff800020b777e0 x28: 00000000fffffff4 x27: ffff800020b77980 [ 70.414304][ T5038] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000416eee8 [ 70.415718][ T5038] x23: ffff0000e289d850 x22: ffff0000ded99370 x21: ffff0000d1b40c00 [ 70.417390][ T5038] x20: 1fffe0001bdb3279 x19: ffff0000ded993c8 x18: 0000000000000000 [ 70.419061][ T5038] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 70.420800][ T5038] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 70.422522][ T5038] x11: ff80800008300a38 x10: 0000000000000000 x9 : d45681d377e33c00 [ 70.424022][ T5038] x8 : d45681d377e33c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 70.425520][ T5038] x5 : ffff800020b76fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 70.427107][ T5038] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 70.428627][ T5038] Call trace: [ 70.429221][ T5038] btrfs_replace_file_extents+0xd18/0x1284 [ 70.430301][ T5038] __btrfs_prealloc_file_range+0x35c/0xb80 [ 70.431354][ T5038] btrfs_prealloc_file_range+0x60/0x7c [ 70.432407][ T5038] btrfs_fallocate+0xcb0/0x1720 [ 70.433292][ T5038] vfs_fallocate+0x4a4/0x5fc [ 70.434113][ T5038] __arm64_sys_fallocate+0xc4/0x114 [ 70.434980][ T5038] invoke_syscall+0x98/0x28c [ 70.435770][ T5038] el0_svc_common+0x13c/0x258 [ 70.436566][ T5038] do_el0_svc+0x5c/0x140 [ 70.437310][ T5038] el0_svc+0x78/0x1d0 [ 70.438009][ T5038] el0t_64_sync_handler+0xcc/0xe4 [ 70.438869][ T5038] el0t_64_sync+0x1a0/0x1a4 [ 70.439667][ T5038] irq event stamp: 78842 [ 70.440446][ T5038] hardirqs last enabled at (78841): [] __up_console_sem+0xb4/0xfc [ 70.442071][ T5038] hardirqs last disabled at (78842): [] el1_dbg+0x24/0x80 [ 70.443625][ T5038] softirqs last enabled at (78820): [] handle_softirqs+0xa70/0xc14 [ 70.445398][ T5038] softirqs last disabled at (78795): [] __irq_exit_rcu+0x240/0x434 [ 70.447099][ T5038] ---[ end trace 7725cedd7cb04561 ]--- [ 70.449424][ T5038] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 70.451117][ T5038] BTRFS info (device loop0): forced readonly [ 70.634605][ T5061] loop0: detected capacity change from 0 to 32768 [ 70.669617][ T5061] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.32 (5061) [ 70.672768][ T5061] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 70.675016][ T5061] BTRFS info (device loop0): using free space tree [ 70.676214][ T5061] BTRFS info (device loop0): has skinny extents [ 70.684933][ T5061] BTRFS info (device loop0): enabling ssd optimizations [ 70.689663][ T5061] FAULT_INJECTION: forcing a failure. [ 70.689663][ T5061] name failslab, interval 1, probability 0, space 0, times 0 [ 70.691867][ T5061] CPU: 1 PID: 5061 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 70.693450][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.695575][ T5061] Call trace: [ 70.696193][ T5061] dump_backtrace+0x0/0x458 [ 70.697040][ T5061] show_stack+0x2c/0x3c [ 70.697822][ T5061] __dump_stack+0x30/0x40 [ 70.698637][ T5061] dump_stack_lvl+0xf4/0x15c [ 70.699500][ T5061] dump_stack+0x1c/0x5c [ 70.700202][ T5061] should_fail+0x3c8/0x520 [ 70.700975][ T5061] __should_failslab+0xbc/0x10c [ 70.701833][ T5061] should_failslab+0x10/0x28 [ 70.702607][ T5061] slab_pre_alloc_hook+0x64/0xe8 [ 70.703448][ T5061] kmem_cache_alloc+0x94/0x3d8 [ 70.704250][ T5061] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 70.705247][ T5061] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 70.706309][ T5061] btrfs_insert_replace_extent+0x818/0x9b0 [ 70.707360][ T5061] btrfs_replace_file_extents+0x8a8/0x1284 [ 70.708426][ T5061] __btrfs_prealloc_file_range+0x35c/0xb80 [ 70.709471][ T5061] btrfs_prealloc_file_range+0x60/0x7c [ 70.710458][ T5061] btrfs_fallocate+0xcb0/0x1720 [ 70.711339][ T5061] vfs_fallocate+0x4a4/0x5fc [ 70.712321][ T5061] __arm64_sys_fallocate+0xc4/0x114 [ 70.713421][ T5061] invoke_syscall+0x98/0x28c [ 70.714203][ T5061] el0_svc_common+0x13c/0x258 [ 70.714998][ T5061] do_el0_svc+0x5c/0x140 [ 70.715720][ T5061] el0_svc+0x78/0x1d0 [ 70.716422][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 70.717289][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 70.719300][ T5061] ------------[ cut here ]------------ [ 70.720369][ T5061] WARNING: CPU: 1 PID: 5061 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 70.722076][ T5061] Modules linked in: [ 70.722739][ T5061] CPU: 1 PID: 5061 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 70.724352][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.726108][ T5061] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 70.727480][ T5061] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 70.728416][ T5061] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 70.729494][ T5061] sp : ffff800020c276c0 [ 70.730286][ T5061] x29: ffff800020c277e0 x28: 00000000fffffff4 x27: ffff800020c27980 [ 70.731737][ T5061] x26: 0000000000000000 x25: dfff800000000000 x24: ffff700004184ee8 [ 70.733171][ T5061] x23: ffff0000ed4c1d70 x22: ffff0000dd7334d0 x21: ffff0000c8844b00 [ 70.734602][ T5061] x20: 1fffe0001bae66a5 x19: ffff0000dd733528 x18: 0000000000000000 [ 70.735973][ T5061] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 70.737625][ T5061] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 70.739229][ T5061] x11: ff80800008300a38 x10: 0000000000000000 x9 : 6f2b09d7fba70200 [ 70.740607][ T5061] x8 : 6f2b09d7fba70200 x7 : 0000000000000001 x6 : 0000000000000001 [ 70.741983][ T5061] x5 : ffff800020c26fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 70.743389][ T5061] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 70.744725][ T5061] Call trace: [ 70.745264][ T5061] btrfs_replace_file_extents+0xd18/0x1284 [ 70.746233][ T5061] __btrfs_prealloc_file_range+0x35c/0xb80 [ 70.747208][ T5061] btrfs_prealloc_file_range+0x60/0x7c [ 70.748171][ T5061] btrfs_fallocate+0xcb0/0x1720 [ 70.749014][ T5061] vfs_fallocate+0x4a4/0x5fc [ 70.749849][ T5061] __arm64_sys_fallocate+0xc4/0x114 [ 70.750876][ T5061] invoke_syscall+0x98/0x28c [ 70.751752][ T5061] el0_svc_common+0x13c/0x258 [ 70.752588][ T5061] do_el0_svc+0x5c/0x140 [ 70.753461][ T5061] el0_svc+0x78/0x1d0 [ 70.754147][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 70.755040][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 70.755871][ T5061] irq event stamp: 78504 [ 70.756601][ T5061] hardirqs last enabled at (78503): [] __up_console_sem+0xb4/0xfc [ 70.758332][ T5061] hardirqs last disabled at (78504): [] el1_dbg+0x24/0x80 [ 70.759929][ T5061] softirqs last enabled at (78482): [] handle_softirqs+0xa70/0xc14 [ 70.761507][ T5061] softirqs last disabled at (78467): [] __irq_exit_rcu+0x240/0x434 [ 70.763162][ T5061] ---[ end trace 7725cedd7cb04562 ]--- [ 70.765806][ T5061] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 70.767396][ T5061] BTRFS info (device loop0): forced readonly [ 70.900697][ T5083] loop0: detected capacity change from 0 to 32768 [ 70.930003][ T5083] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.33 (5083) [ 70.932951][ T5083] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 70.934478][ T5083] BTRFS info (device loop0): using free space tree [ 70.935570][ T5083] BTRFS info (device loop0): has skinny extents [ 70.942843][ T5083] BTRFS info (device loop0): enabling ssd optimizations [ 70.946042][ T5083] FAULT_INJECTION: forcing a failure. [ 70.946042][ T5083] name failslab, interval 1, probability 0, space 0, times 0 [ 70.948108][ T5083] CPU: 0 PID: 5083 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 70.949517][ T5083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.951296][ T5083] Call trace: [ 70.951859][ T5083] dump_backtrace+0x0/0x458 [ 70.952634][ T5083] show_stack+0x2c/0x3c [ 70.953370][ T5083] __dump_stack+0x30/0x40 [ 70.954102][ T5083] dump_stack_lvl+0xf4/0x15c [ 70.954900][ T5083] dump_stack+0x1c/0x5c [ 70.955621][ T5083] should_fail+0x3c8/0x520 [ 70.956412][ T5083] __should_failslab+0xbc/0x10c [ 70.957251][ T5083] should_failslab+0x10/0x28 [ 70.958011][ T5083] slab_pre_alloc_hook+0x64/0xe8 [ 70.958839][ T5083] kmem_cache_alloc+0x94/0x3d8 [ 70.959645][ T5083] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 70.960633][ T5083] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 70.961694][ T5083] btrfs_insert_replace_extent+0x818/0x9b0 [ 70.962763][ T5083] btrfs_replace_file_extents+0x8a8/0x1284 [ 70.963840][ T5083] __btrfs_prealloc_file_range+0x35c/0xb80 [ 70.964906][ T5083] btrfs_prealloc_file_range+0x60/0x7c [ 70.965862][ T5083] btrfs_fallocate+0xcb0/0x1720 [ 70.966722][ T5083] vfs_fallocate+0x4a4/0x5fc [ 70.967516][ T5083] __arm64_sys_fallocate+0xc4/0x114 [ 70.968432][ T5083] invoke_syscall+0x98/0x28c [ 70.969280][ T5083] el0_svc_common+0x13c/0x258 [ 70.970100][ T5083] do_el0_svc+0x5c/0x140 [ 70.970887][ T5083] el0_svc+0x78/0x1d0 [ 70.971646][ T5083] el0t_64_sync_handler+0xcc/0xe4 [ 70.972527][ T5083] el0t_64_sync+0x1a0/0x1a4 [ 70.974380][ T5083] ------------[ cut here ]------------ [ 70.975408][ T5083] WARNING: CPU: 0 PID: 5083 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 70.977131][ T5083] Modules linked in: [ 70.977812][ T5083] CPU: 0 PID: 5083 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 70.979414][ T5083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.981431][ T5083] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 70.982876][ T5083] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 70.984000][ T5083] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 70.985180][ T5083] sp : ffff8000212576c0 [ 70.985972][ T5083] x29: ffff8000212577e0 x28: 00000000fffffff4 x27: ffff800021257980 [ 70.987438][ T5083] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000424aee8 [ 70.988789][ T5083] x23: ffff0000e289ebf0 x22: ffff0000ded99840 x21: ffff0000ec219800 [ 70.990200][ T5083] x20: 1fffe0001bdb3313 x19: ffff0000ded99898 x18: 0000000000000000 [ 70.991578][ T5083] x17: 0000000000000000 x16: ffff8000082c67fc x15: 0000000000000000 [ 70.992935][ T5083] x14: 0000000000000001 x13: 1ffff0000424adf8 x12: 0000000000000000 [ 70.994316][ T5083] x11: ff80800008300a38 x10: 0000000000000000 x9 : 592d49b5e75fbd00 [ 70.995729][ T5083] x8 : 592d49b5e75fbd00 x7 : 0000000000000001 x6 : 0000000000000001 [ 70.997093][ T5083] x5 : ffff800021256fd8 x4 : ffff80001447f520 x3 : ffff800008308360 [ 70.998444][ T5083] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 70.999868][ T5083] Call trace: [ 71.000473][ T5083] btrfs_replace_file_extents+0xd18/0x1284 [ 71.001440][ T5083] __btrfs_prealloc_file_range+0x35c/0xb80 [ 71.002480][ T5083] btrfs_prealloc_file_range+0x60/0x7c [ 71.003463][ T5083] btrfs_fallocate+0xcb0/0x1720 [ 71.004459][ T5083] vfs_fallocate+0x4a4/0x5fc [ 71.005391][ T5083] __arm64_sys_fallocate+0xc4/0x114 [ 71.006312][ T5083] invoke_syscall+0x98/0x28c [ 71.007263][ T5083] el0_svc_common+0x13c/0x258 [ 71.008181][ T5083] do_el0_svc+0x5c/0x140 [ 71.009024][ T5083] el0_svc+0x78/0x1d0 [ 71.009805][ T5083] el0t_64_sync_handler+0xcc/0xe4 [ 71.010856][ T5083] el0t_64_sync+0x1a0/0x1a4 [ 71.011830][ T5083] irq event stamp: 79694 [ 71.012738][ T5083] hardirqs last enabled at (79693): [] __up_console_sem+0xb4/0xfc [ 71.014722][ T5083] hardirqs last disabled at (79694): [] el1_dbg+0x24/0x80 [ 71.016599][ T5083] softirqs last enabled at (79672): [] handle_softirqs+0xa70/0xc14 [ 71.018412][ T5083] softirqs last disabled at (79585): [] __irq_exit_rcu+0x240/0x434 [ 71.020341][ T5083] ---[ end trace 7725cedd7cb04563 ]--- [ 71.021874][ T5083] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 71.023487][ T5083] BTRFS info (device loop0): forced readonly [ 71.154062][ T5105] loop0: detected capacity change from 0 to 32768 [ 71.161296][ T5105] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.34 (5105) [ 71.165466][ T5105] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 71.166978][ T5105] BTRFS info (device loop0): using free space tree [ 71.168087][ T5105] BTRFS info (device loop0): has skinny extents [ 71.178789][ T5105] BTRFS info (device loop0): enabling ssd optimizations [ 71.182099][ T5105] FAULT_INJECTION: forcing a failure. [ 71.182099][ T5105] name failslab, interval 1, probability 0, space 0, times 0 [ 71.184069][ T5105] CPU: 0 PID: 5105 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 71.185443][ T5105] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 71.186994][ T5105] Call trace: [ 71.187508][ T5105] dump_backtrace+0x0/0x458 [ 71.188229][ T5105] show_stack+0x2c/0x3c [ 71.188966][ T5105] __dump_stack+0x30/0x40 [ 71.189809][ T5105] dump_stack_lvl+0xf4/0x15c [ 71.190774][ T5105] dump_stack+0x1c/0x5c [ 71.191647][ T5105] should_fail+0x3c8/0x520 [ 71.192562][ T5105] __should_failslab+0xbc/0x10c [ 71.193521][ T5105] should_failslab+0x10/0x28 [ 71.194328][ T5105] slab_pre_alloc_hook+0x64/0xe8 [ 71.195217][ T5105] kmem_cache_alloc+0x94/0x3d8 [ 71.196019][ T5105] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 71.197022][ T5105] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 71.198138][ T5105] btrfs_insert_replace_extent+0x818/0x9b0 [ 71.199191][ T5105] btrfs_replace_file_extents+0x8a8/0x1284 [ 71.200265][ T5105] __btrfs_prealloc_file_range+0x35c/0xb80 [ 71.201305][ T5105] btrfs_prealloc_file_range+0x60/0x7c [ 71.202291][ T5105] btrfs_fallocate+0xcb0/0x1720 [ 71.203172][ T5105] vfs_fallocate+0x4a4/0x5fc [ 71.203964][ T5105] __arm64_sys_fallocate+0xc4/0x114 [ 71.204876][ T5105] invoke_syscall+0x98/0x28c [ 71.205689][ T5105] el0_svc_common+0x13c/0x258 [ 71.206519][ T5105] do_el0_svc+0x5c/0x140 [ 71.207275][ T5105] el0_svc+0x78/0x1d0 [ 71.207999][ T5105] el0t_64_sync_handler+0xcc/0xe4 [ 71.208925][ T5105] el0t_64_sync+0x1a0/0x1a4 [ 71.210965][ T5105] ------------[ cut here ]------------ [ 71.211944][ T5105] WARNING: CPU: 0 PID: 5105 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 71.213594][ T5105] Modules linked in: [ 71.214241][ T5105] CPU: 0 PID: 5105 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 71.215631][ T5105] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 71.217266][ T5105] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 71.218521][ T5105] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 71.219602][ T5105] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 71.220715][ T5105] sp : ffff8000213776c0 [ 71.221470][ T5105] x29: ffff8000213777e0 x28: 00000000fffffff4 x27: ffff800021377980 [ 71.222945][ T5105] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000426eee8 [ 71.224416][ T5105] x23: ffff0000ed4dce80 x22: ffff0000ded999a0 x21: ffff0000c9757000 [ 71.225841][ T5105] x20: 1fffe0001bdb333f x19: ffff0000ded999f8 x18: 0000000000000000 [ 71.227316][ T5105] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 71.228835][ T5105] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 71.230346][ T5105] x11: ff80800008300a38 x10: 0000000000000000 x9 : cba233560f7d8300 [ 71.231842][ T5105] x8 : cba233560f7d8300 x7 : 0000000000000001 x6 : 0000000000000001 [ 71.233303][ T5105] x5 : ffff800021376fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 71.234813][ T5105] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 71.236257][ T5105] Call trace: [ 71.236832][ T5105] btrfs_replace_file_extents+0xd18/0x1284 [ 71.237893][ T5105] __btrfs_prealloc_file_range+0x35c/0xb80 [ 71.238966][ T5105] btrfs_prealloc_file_range+0x60/0x7c [ 71.239976][ T5105] btrfs_fallocate+0xcb0/0x1720 [ 71.240891][ T5105] vfs_fallocate+0x4a4/0x5fc [ 71.241762][ T5105] __arm64_sys_fallocate+0xc4/0x114 [ 71.242885][ T5105] invoke_syscall+0x98/0x28c [ 71.243871][ T5105] el0_svc_common+0x13c/0x258 [ 71.244781][ T5105] do_el0_svc+0x5c/0x140 [ 71.245609][ T5105] el0_svc+0x78/0x1d0 [ 71.246453][ T5105] el0t_64_sync_handler+0xcc/0xe4 [ 71.247523][ T5105] el0t_64_sync+0x1a0/0x1a4 [ 71.248493][ T5105] irq event stamp: 78956 [ 71.249388][ T5105] hardirqs last enabled at (78955): [] __up_console_sem+0xb4/0xfc [ 71.251397][ T5105] hardirqs last disabled at (78956): [] el1_dbg+0x24/0x80 [ 71.253148][ T5105] softirqs last enabled at (78934): [] handle_softirqs+0xa70/0xc14 [ 71.255155][ T5105] softirqs last disabled at (78781): [] __irq_exit_rcu+0x240/0x434 [ 71.257106][ T5105] ---[ end trace 7725cedd7cb04564 ]--- [ 71.259222][ T5105] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 71.260983][ T5105] BTRFS info (device loop0): forced readonly [ 71.434763][ T5127] loop0: detected capacity change from 0 to 32768 [ 71.473642][ T5127] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.35 (5127) [ 71.478394][ T5127] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 71.480929][ T5127] BTRFS info (device loop0): using free space tree [ 71.482030][ T5127] BTRFS info (device loop0): has skinny extents [ 71.489793][ T5127] BTRFS info (device loop0): enabling ssd optimizations [ 71.493106][ T5127] FAULT_INJECTION: forcing a failure. [ 71.493106][ T5127] name failslab, interval 1, probability 0, space 0, times 0 [ 71.495445][ T5127] CPU: 0 PID: 5127 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 71.496886][ T5127] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 71.498630][ T5127] Call trace: [ 71.499249][ T5127] dump_backtrace+0x0/0x458 [ 71.500116][ T5127] show_stack+0x2c/0x3c [ 71.500877][ T5127] __dump_stack+0x30/0x40 [ 71.501711][ T5127] dump_stack_lvl+0xf4/0x15c [ 71.502585][ T5127] dump_stack+0x1c/0x5c [ 71.503337][ T5127] should_fail+0x3c8/0x520 [ 71.504111][ T5127] __should_failslab+0xbc/0x10c [ 71.504962][ T5127] should_failslab+0x10/0x28 [ 71.505749][ T5127] slab_pre_alloc_hook+0x64/0xe8 [ 71.506592][ T5127] kmem_cache_alloc+0x94/0x3d8 [ 71.507587][ T5127] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 71.508762][ T5127] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 71.510011][ T5127] btrfs_insert_replace_extent+0x818/0x9b0 [ 71.511172][ T5127] btrfs_replace_file_extents+0x8a8/0x1284 [ 71.512369][ T5127] __btrfs_prealloc_file_range+0x35c/0xb80 [ 71.513414][ T5127] btrfs_prealloc_file_range+0x60/0x7c [ 71.514379][ T5127] btrfs_fallocate+0xcb0/0x1720 [ 71.515328][ T5127] vfs_fallocate+0x4a4/0x5fc [ 71.516225][ T5127] __arm64_sys_fallocate+0xc4/0x114 [ 71.517206][ T5127] invoke_syscall+0x98/0x28c [ 71.518063][ T5127] el0_svc_common+0x13c/0x258 [ 71.518933][ T5127] do_el0_svc+0x5c/0x140 [ 71.519716][ T5127] el0_svc+0x78/0x1d0 [ 71.520465][ T5127] el0t_64_sync_handler+0xcc/0xe4 [ 71.521414][ T5127] el0t_64_sync+0x1a0/0x1a4 [ 71.523038][ T5127] ------------[ cut here ]------------ [ 71.523990][ T5127] WARNING: CPU: 0 PID: 5127 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 71.525467][ T5127] Modules linked in: [ 71.526128][ T5127] CPU: 0 PID: 5127 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 71.527542][ T5127] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 71.529156][ T5127] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 71.530534][ T5127] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 71.531652][ T5127] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 71.532764][ T5127] sp : ffff8000213776c0 [ 71.533521][ T5127] x29: ffff8000213777e0 x28: 00000000fffffff4 x27: ffff800021377980 [ 71.534925][ T5127] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000426eee8 [ 71.536389][ T5127] x23: ffff0000ed4db110 x22: ffff0000ded99b00 x21: ffff0000c8ae6c00 [ 71.537880][ T5127] x20: 1fffe0001bdb336b x19: ffff0000ded99b58 x18: 0000000000000000 [ 71.539364][ T5127] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 71.540855][ T5127] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 71.542353][ T5127] x11: ff80800008300a38 x10: 0000000000000000 x9 : 88fd55443818f000 [ 71.543829][ T5127] x8 : 88fd55443818f000 x7 : 0000000000000001 x6 : 0000000000000001 [ 71.545267][ T5127] x5 : ffff800021376fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 71.546726][ T5127] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 71.548169][ T5127] Call trace: [ 71.548764][ T5127] btrfs_replace_file_extents+0xd18/0x1284 [ 71.549823][ T5127] __btrfs_prealloc_file_range+0x35c/0xb80 [ 71.550865][ T5127] btrfs_prealloc_file_range+0x60/0x7c [ 71.551853][ T5127] btrfs_fallocate+0xcb0/0x1720 [ 71.552759][ T5127] vfs_fallocate+0x4a4/0x5fc [ 71.553598][ T5127] __arm64_sys_fallocate+0xc4/0x114 [ 71.554548][ T5127] invoke_syscall+0x98/0x28c [ 71.555367][ T5127] el0_svc_common+0x13c/0x258 [ 71.556229][ T5127] do_el0_svc+0x5c/0x140 [ 71.556952][ T5127] el0_svc+0x78/0x1d0 [ 71.557615][ T5127] el0t_64_sync_handler+0xcc/0xe4 [ 71.558482][ T5127] el0t_64_sync+0x1a0/0x1a4 [ 71.559274][ T5127] irq event stamp: 78636 [ 71.560016][ T5127] hardirqs last enabled at (78635): [] __up_console_sem+0xb4/0xfc [ 71.561726][ T5127] hardirqs last disabled at (78636): [] el1_dbg+0x24/0x80 [ 71.563208][ T5127] softirqs last enabled at (78614): [] handle_softirqs+0xa70/0xc14 [ 71.564889][ T5127] softirqs last disabled at (78591): [] __irq_exit_rcu+0x240/0x434 [ 71.566549][ T5127] ---[ end trace 7725cedd7cb04565 ]--- [ 71.568011][ T5127] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 71.569784][ T5127] BTRFS info (device loop0): forced readonly [ 71.759399][ T5149] loop0: detected capacity change from 0 to 32768 [ 71.802931][ T5149] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.36 (5149) [ 71.807823][ T5149] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 71.810268][ T5149] BTRFS info (device loop0): using free space tree [ 71.811688][ T5149] BTRFS info (device loop0): has skinny extents [ 71.835900][ T5149] BTRFS info (device loop0): enabling ssd optimizations [ 71.840136][ T5149] FAULT_INJECTION: forcing a failure. [ 71.840136][ T5149] name failslab, interval 1, probability 0, space 0, times 0 [ 71.842371][ T5149] CPU: 1 PID: 5149 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 71.843774][ T5149] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 71.845406][ T5149] Call trace: [ 71.845968][ T5149] dump_backtrace+0x0/0x458 [ 71.846720][ T5149] show_stack+0x2c/0x3c [ 71.847410][ T5149] __dump_stack+0x30/0x40 [ 71.848150][ T5149] dump_stack_lvl+0xf4/0x15c [ 71.848935][ T5149] dump_stack+0x1c/0x5c [ 71.849636][ T5149] should_fail+0x3c8/0x520 [ 71.850376][ T5149] __should_failslab+0xbc/0x10c [ 71.851221][ T5149] should_failslab+0x10/0x28 [ 71.851986][ T5149] slab_pre_alloc_hook+0x64/0xe8 [ 71.852791][ T5149] kmem_cache_alloc+0x94/0x3d8 [ 71.853798][ T5149] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 71.854881][ T5149] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 71.855976][ T5149] btrfs_insert_replace_extent+0x818/0x9b0 [ 71.856990][ T5149] btrfs_replace_file_extents+0x8a8/0x1284 [ 71.857952][ T5149] __btrfs_prealloc_file_range+0x35c/0xb80 [ 71.858932][ T5149] btrfs_prealloc_file_range+0x60/0x7c [ 71.859836][ T5149] btrfs_fallocate+0xcb0/0x1720 [ 71.860647][ T5149] vfs_fallocate+0x4a4/0x5fc [ 71.861394][ T5149] __arm64_sys_fallocate+0xc4/0x114 [ 71.862249][ T5149] invoke_syscall+0x98/0x28c [ 71.863045][ T5149] el0_svc_common+0x13c/0x258 [ 71.863833][ T5149] do_el0_svc+0x5c/0x140 [ 71.864555][ T5149] el0_svc+0x78/0x1d0 [ 71.865198][ T5149] el0t_64_sync_handler+0xcc/0xe4 [ 71.866038][ T5149] el0t_64_sync+0x1a0/0x1a4 [ 71.867184][ T5149] ------------[ cut here ]------------ [ 71.868175][ T5149] WARNING: CPU: 1 PID: 5149 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 71.869885][ T5149] Modules linked in: [ 71.870546][ T5149] CPU: 1 PID: 5149 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 71.871922][ T5149] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 71.873656][ T5149] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 71.874993][ T5149] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 71.876026][ T5149] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 71.877017][ T5149] sp : ffff8000215c76c0 [ 71.877710][ T5149] x29: ffff8000215c77e0 x28: 00000000fffffff4 x27: ffff8000215c7980 [ 71.879094][ T5149] x26: 0000000000000000 x25: dfff800000000000 x24: ffff7000042b8ee8 [ 71.880453][ T5149] x23: ffff0000ed4c4e80 x22: ffff0000dd7338f0 x21: ffff0000c8eac200 [ 71.881938][ T5149] x20: 1fffe0001bae6729 x19: ffff0000dd733948 x18: 0000000000000000 [ 71.883321][ T5149] x17: 0000000000000000 x16: ffff8000082c67fc x15: 0000000000000000 [ 71.884708][ T5149] x14: 0000000000000001 x13: 1ffff000042b8df8 x12: 0000000000000000 [ 71.886105][ T5149] x11: ff80800008300a38 x10: 0000000000000000 x9 : 5d836d1e7b829100 [ 71.887490][ T5149] x8 : 5d836d1e7b829100 x7 : 0000000000000001 x6 : 0000000000000001 [ 71.888908][ T5149] x5 : ffff8000215c6fd8 x4 : ffff80001447f520 x3 : ffff800008308360 [ 71.890309][ T5149] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 71.891692][ T5149] Call trace: [ 71.892257][ T5149] btrfs_replace_file_extents+0xd18/0x1284 [ 71.893280][ T5149] __btrfs_prealloc_file_range+0x35c/0xb80 [ 71.894338][ T5149] btrfs_prealloc_file_range+0x60/0x7c [ 71.895307][ T5149] btrfs_fallocate+0xcb0/0x1720 [ 71.896171][ T5149] vfs_fallocate+0x4a4/0x5fc [ 71.896995][ T5149] __arm64_sys_fallocate+0xc4/0x114 [ 71.897877][ T5149] invoke_syscall+0x98/0x28c [ 71.898690][ T5149] el0_svc_common+0x13c/0x258 [ 71.899480][ T5149] do_el0_svc+0x5c/0x140 [ 71.900181][ T5149] el0_svc+0x78/0x1d0 [ 71.900862][ T5149] el0t_64_sync_handler+0xcc/0xe4 [ 71.901736][ T5149] el0t_64_sync+0x1a0/0x1a4 [ 71.902506][ T5149] irq event stamp: 79380 [ 71.903223][ T5149] hardirqs last enabled at (79379): [] __up_console_sem+0xb4/0xfc [ 71.904788][ T5149] hardirqs last disabled at (79380): [] el1_dbg+0x24/0x80 [ 71.906206][ T5149] softirqs last enabled at (79358): [] handle_softirqs+0xa70/0xc14 [ 71.907761][ T5149] softirqs last disabled at (79293): [] __irq_exit_rcu+0x240/0x434 [ 71.909312][ T5149] ---[ end trace 7725cedd7cb04566 ]--- [ 71.910781][ T5149] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 71.912403][ T5149] BTRFS info (device loop0): forced readonly [ 72.096481][ T5173] loop0: detected capacity change from 0 to 32768 [ 72.142504][ T5173] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.37 (5173) [ 72.146186][ T5173] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 72.147712][ T5173] BTRFS info (device loop0): using free space tree [ 72.149033][ T5173] BTRFS info (device loop0): has skinny extents [ 72.157386][ T5173] BTRFS info (device loop0): enabling ssd optimizations [ 72.161372][ T5173] FAULT_INJECTION: forcing a failure. [ 72.161372][ T5173] name failslab, interval 1, probability 0, space 0, times 0 [ 72.163484][ T5173] CPU: 0 PID: 5173 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 72.164909][ T5173] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 72.166569][ T5173] Call trace: [ 72.167067][ T5173] dump_backtrace+0x0/0x458 [ 72.167878][ T5173] show_stack+0x2c/0x3c [ 72.168631][ T5173] __dump_stack+0x30/0x40 [ 72.169426][ T5173] dump_stack_lvl+0xf4/0x15c [ 72.170255][ T5173] dump_stack+0x1c/0x5c [ 72.171014][ T5173] should_fail+0x3c8/0x520 [ 72.171826][ T5173] __should_failslab+0xbc/0x10c [ 72.172720][ T5173] should_failslab+0x10/0x28 [ 72.173610][ T5173] slab_pre_alloc_hook+0x64/0xe8 [ 72.174494][ T5173] kmem_cache_alloc+0x94/0x3d8 [ 72.175350][ T5173] btrfs_add_delayed_data_ref+0x174/0xd64 [ 72.176391][ T5173] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 72.177488][ T5173] btrfs_insert_replace_extent+0x818/0x9b0 [ 72.178485][ T5173] btrfs_replace_file_extents+0x8a8/0x1284 [ 72.179467][ T5173] __btrfs_prealloc_file_range+0x35c/0xb80 [ 72.180480][ T5173] btrfs_prealloc_file_range+0x60/0x7c [ 72.181491][ T5173] btrfs_fallocate+0xcb0/0x1720 [ 72.182377][ T5173] vfs_fallocate+0x4a4/0x5fc [ 72.183179][ T5173] __arm64_sys_fallocate+0xc4/0x114 [ 72.184085][ T5173] invoke_syscall+0x98/0x28c [ 72.184905][ T5173] el0_svc_common+0x13c/0x258 [ 72.185752][ T5173] do_el0_svc+0x5c/0x140 [ 72.186523][ T5173] el0_svc+0x78/0x1d0 [ 72.187225][ T5173] el0t_64_sync_handler+0xcc/0xe4 [ 72.188113][ T5173] el0t_64_sync+0x1a0/0x1a4 [ 72.190809][ T5173] ------------[ cut here ]------------ [ 72.191908][ T5173] WARNING: CPU: 0 PID: 5173 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 72.193600][ T5173] Modules linked in: [ 72.194284][ T5173] CPU: 0 PID: 5173 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 72.195795][ T5173] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 72.197591][ T5173] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 72.199084][ T5173] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 72.200206][ T5173] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 72.201362][ T5173] sp : ffff8000216776c0 [ 72.202137][ T5173] x29: ffff8000216777e0 x28: 00000000fffffff4 x27: ffff800021677980 [ 72.203699][ T5173] x26: 0000000000000000 x25: dfff800000000000 x24: ffff7000042ceee8 [ 72.205385][ T5173] x23: ffff0000ed4dbae0 x22: ffff0000ded996e0 x21: ffff0000c1cbfa00 [ 72.206928][ T5173] x20: 1fffe0001bdb32e7 x19: ffff0000ded99738 x18: 0000000000000000 [ 72.208420][ T5173] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 72.209905][ T5173] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 72.211413][ T5173] x11: ff80800008300a38 x10: 0000000000000000 x9 : 828ab42fd6293900 [ 72.212958][ T5173] x8 : 828ab42fd6293900 x7 : 0000000000000001 x6 : 0000000000000001 [ 72.214429][ T5173] x5 : ffff800021676fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 72.215980][ T5173] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 72.217454][ T5173] Call trace: [ 72.218063][ T5173] btrfs_replace_file_extents+0xd18/0x1284 [ 72.219157][ T5173] __btrfs_prealloc_file_range+0x35c/0xb80 [ 72.220217][ T5173] btrfs_prealloc_file_range+0x60/0x7c [ 72.221186][ T5173] btrfs_fallocate+0xcb0/0x1720 [ 72.222053][ T5173] vfs_fallocate+0x4a4/0x5fc [ 72.222900][ T5173] __arm64_sys_fallocate+0xc4/0x114 [ 72.223847][ T5173] invoke_syscall+0x98/0x28c [ 72.224768][ T5173] el0_svc_common+0x13c/0x258 [ 72.225739][ T5173] do_el0_svc+0x5c/0x140 [ 72.226617][ T5173] el0_svc+0x78/0x1d0 [ 72.227443][ T5173] el0t_64_sync_handler+0xcc/0xe4 [ 72.228487][ T5173] el0t_64_sync+0x1a0/0x1a4 [ 72.229341][ T5173] irq event stamp: 78572 [ 72.230225][ T5173] hardirqs last enabled at (78571): [] __up_console_sem+0xb4/0xfc [ 72.232187][ T5173] hardirqs last disabled at (78572): [] el1_dbg+0x24/0x80 [ 72.233979][ T5173] softirqs last enabled at (78552): [] handle_softirqs+0xa70/0xc14 [ 72.235917][ T5173] softirqs last disabled at (78497): [] __irq_exit_rcu+0x240/0x434 [ 72.237774][ T5173] ---[ end trace 7725cedd7cb04567 ]--- [ 72.240775][ T5173] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 72.242697][ T5173] BTRFS info (device loop0): forced readonly [ 72.416307][ T5195] loop0: detected capacity change from 0 to 32768 [ 72.449484][ T5195] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.38 (5195) [ 72.452979][ T5195] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 72.454586][ T5195] BTRFS info (device loop0): using free space tree [ 72.455823][ T5195] BTRFS info (device loop0): has skinny extents [ 72.463856][ T5195] BTRFS info (device loop0): enabling ssd optimizations [ 72.467226][ T5195] FAULT_INJECTION: forcing a failure. [ 72.467226][ T5195] name failslab, interval 1, probability 0, space 0, times 0 [ 72.470534][ T5195] CPU: 0 PID: 5195 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 72.472126][ T5195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 72.473970][ T5195] Call trace: [ 72.474596][ T5195] dump_backtrace+0x0/0x458 [ 72.475466][ T5195] show_stack+0x2c/0x3c [ 72.476277][ T5195] __dump_stack+0x30/0x40 [ 72.477095][ T5195] dump_stack_lvl+0xf4/0x15c [ 72.477973][ T5195] dump_stack+0x1c/0x5c [ 72.478704][ T5195] should_fail+0x3c8/0x520 [ 72.479490][ T5195] __should_failslab+0xbc/0x10c [ 72.480351][ T5195] should_failslab+0x10/0x28 [ 72.481159][ T5195] slab_pre_alloc_hook+0x64/0xe8 [ 72.482000][ T5195] kmem_cache_alloc+0x94/0x3d8 [ 72.482858][ T5195] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 72.483887][ T5195] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 72.484933][ T5195] btrfs_insert_replace_extent+0x818/0x9b0 [ 72.485942][ T5195] btrfs_replace_file_extents+0x8a8/0x1284 [ 72.486940][ T5195] __btrfs_prealloc_file_range+0x35c/0xb80 [ 72.487933][ T5195] btrfs_prealloc_file_range+0x60/0x7c [ 72.488897][ T5195] btrfs_fallocate+0xcb0/0x1720 [ 72.489751][ T5195] vfs_fallocate+0x4a4/0x5fc [ 72.490576][ T5195] __arm64_sys_fallocate+0xc4/0x114 [ 72.491522][ T5195] invoke_syscall+0x98/0x28c [ 72.492369][ T5195] el0_svc_common+0x13c/0x258 [ 72.493205][ T5195] do_el0_svc+0x5c/0x140 [ 72.493995][ T5195] el0_svc+0x78/0x1d0 [ 72.494749][ T5195] el0t_64_sync_handler+0xcc/0xe4 [ 72.495693][ T5195] el0t_64_sync+0x1a0/0x1a4 [ 72.498067][ T5195] ------------[ cut here ]------------ [ 72.499177][ T5195] WARNING: CPU: 0 PID: 5195 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 72.500870][ T5195] Modules linked in: [ 72.501551][ T5195] CPU: 0 PID: 5195 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 72.502959][ T5195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 72.504580][ T5195] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 72.506075][ T5195] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 72.507129][ T5195] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 72.508326][ T5195] sp : ffff800021bd76c0 [ 72.509077][ T5195] x29: ffff800021bd77e0 x28: 00000000fffffff4 x27: ffff800021bd7980 [ 72.510609][ T5195] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000437aee8 [ 72.512292][ T5195] x23: ffff0000ed4d9d70 x22: ffff0000ded99580 x21: ffff0000d1d81900 [ 72.513968][ T5195] x20: 1fffe0001bdb32bb x19: ffff0000ded995d8 x18: 0000000000000000 [ 72.515650][ T5195] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 72.517362][ T5195] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 72.518953][ T5195] x11: ff80800008300a38 x10: 0000000000000000 x9 : 3a66008ed4729900 [ 72.520561][ T5195] x8 : 3a66008ed4729900 x7 : 0000000000000001 x6 : 0000000000000001 [ 72.522150][ T5195] x5 : ffff800021bd6fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 72.523711][ T5195] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 72.525341][ T5195] Call trace: [ 72.525930][ T5195] btrfs_replace_file_extents+0xd18/0x1284 [ 72.527010][ T5195] __btrfs_prealloc_file_range+0x35c/0xb80 [ 72.528053][ T5195] btrfs_prealloc_file_range+0x60/0x7c [ 72.529043][ T5195] btrfs_fallocate+0xcb0/0x1720 [ 72.529893][ T5195] vfs_fallocate+0x4a4/0x5fc [ 72.530681][ T5195] __arm64_sys_fallocate+0xc4/0x114 [ 72.531637][ T5195] invoke_syscall+0x98/0x28c [ 72.532472][ T5195] el0_svc_common+0x13c/0x258 [ 72.533249][ T5195] do_el0_svc+0x5c/0x140 [ 72.533983][ T5195] el0_svc+0x78/0x1d0 [ 72.534679][ T5195] el0t_64_sync_handler+0xcc/0xe4 [ 72.535557][ T5195] el0t_64_sync+0x1a0/0x1a4 [ 72.536325][ T5195] irq event stamp: 78674 [ 72.537073][ T5195] hardirqs last enabled at (78673): [] __up_console_sem+0xb4/0xfc [ 72.538685][ T5195] hardirqs last disabled at (78674): [] el1_dbg+0x24/0x80 [ 72.540118][ T5195] softirqs last enabled at (78662): [] handle_softirqs+0xa70/0xc14 [ 72.541784][ T5195] softirqs last disabled at (78635): [] __irq_exit_rcu+0x240/0x434 [ 72.543423][ T5195] ---[ end trace 7725cedd7cb04568 ]--- [ 72.546443][ T5195] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 72.548015][ T5195] BTRFS info (device loop0): forced readonly [ 72.711357][ T5217] loop0: detected capacity change from 0 to 32768 [ 72.750740][ T5217] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.39 (5217) [ 72.753833][ T5217] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 72.755365][ T5217] BTRFS info (device loop0): using free space tree [ 72.756637][ T5217] BTRFS info (device loop0): has skinny extents [ 72.764917][ T5217] BTRFS info (device loop0): enabling ssd optimizations [ 72.768522][ T5217] FAULT_INJECTION: forcing a failure. [ 72.768522][ T5217] name failslab, interval 1, probability 0, space 0, times 0 [ 72.770732][ T5217] CPU: 1 PID: 5217 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 72.772280][ T5217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 72.773867][ T5217] Call trace: [ 72.774409][ T5217] dump_backtrace+0x0/0x458 [ 72.775157][ T5217] show_stack+0x2c/0x3c [ 72.775816][ T5217] __dump_stack+0x30/0x40 [ 72.776493][ T5217] dump_stack_lvl+0xf4/0x15c [ 72.777234][ T5217] dump_stack+0x1c/0x5c [ 72.777907][ T5217] should_fail+0x3c8/0x520 [ 72.778658][ T5217] __should_failslab+0xbc/0x10c [ 72.779487][ T5217] should_failslab+0x10/0x28 [ 72.780290][ T5217] slab_pre_alloc_hook+0x64/0xe8 [ 72.781181][ T5217] kmem_cache_alloc+0x94/0x3d8 [ 72.782008][ T5217] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 72.782983][ T5217] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 72.784072][ T5217] btrfs_insert_replace_extent+0x818/0x9b0 [ 72.785092][ T5217] btrfs_replace_file_extents+0x8a8/0x1284 [ 72.786080][ T5217] __btrfs_prealloc_file_range+0x35c/0xb80 [ 72.787072][ T5217] btrfs_prealloc_file_range+0x60/0x7c [ 72.787981][ T5217] btrfs_fallocate+0xcb0/0x1720 [ 72.788780][ T5217] vfs_fallocate+0x4a4/0x5fc [ 72.789574][ T5217] __arm64_sys_fallocate+0xc4/0x114 [ 72.790417][ T5217] invoke_syscall+0x98/0x28c [ 72.791140][ T5217] el0_svc_common+0x13c/0x258 [ 72.791926][ T5217] do_el0_svc+0x5c/0x140 [ 72.792641][ T5217] el0_svc+0x78/0x1d0 [ 72.793448][ T5217] el0t_64_sync_handler+0xcc/0xe4 [ 72.794493][ T5217] el0t_64_sync+0x1a0/0x1a4 [ 72.795652][ T5217] ------------[ cut here ]------------ [ 72.796687][ T5217] WARNING: CPU: 1 PID: 5217 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 72.798483][ T5217] Modules linked in: [ 72.799178][ T5217] CPU: 1 PID: 5217 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 72.800716][ T5217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 72.802586][ T5217] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 72.803927][ T5217] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 72.805009][ T5217] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 72.806108][ T5217] sp : ffff800021bc76c0 [ 72.806967][ T5217] x29: ffff800021bc77e0 x28: 00000000fffffff4 x27: ffff800021bc7980 [ 72.808647][ T5217] x26: 0000000000000000 x25: dfff800000000000 x24: ffff700004378ee8 [ 72.810289][ T5217] x23: ffff0000ed4c75c0 x22: ffff0000dd733c60 x21: ffff0000c104a800 [ 72.811686][ T5217] x20: 1fffe0001bae6797 x19: ffff0000dd733cb8 x18: 0000000000000000 [ 72.813104][ T5217] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 72.814640][ T5217] x14: 0000000000000001 x13: 1fffe000341d20d7 x12: 0000000000000000 [ 72.816088][ T5217] x11: ff80800008300a38 x10: 0000000000000000 x9 : 8fc4a80c76338400 [ 72.817556][ T5217] x8 : 8fc4a80c76338400 x7 : 0000000000000001 x6 : 0000000000000001 [ 72.819163][ T5217] x5 : ffff800021bc6fd8 x4 : ffff80001447f520 x3 : ffff80000a7a56c8 [ 72.820615][ T5217] x2 : ffff0001a0e84d50 x1 : 0000000100000000 x0 : 0000000000000026 [ 72.822112][ T5217] Call trace: [ 72.822719][ T5217] btrfs_replace_file_extents+0xd18/0x1284 [ 72.823741][ T5217] __btrfs_prealloc_file_range+0x35c/0xb80 [ 72.824786][ T5217] btrfs_prealloc_file_range+0x60/0x7c [ 72.825832][ T5217] btrfs_fallocate+0xcb0/0x1720 [ 72.826647][ T5217] vfs_fallocate+0x4a4/0x5fc [ 72.827436][ T5217] __arm64_sys_fallocate+0xc4/0x114 [ 72.828324][ T5217] invoke_syscall+0x98/0x28c [ 72.829085][ T5217] el0_svc_common+0x13c/0x258 [ 72.829899][ T5217] do_el0_svc+0x5c/0x140 [ 72.830638][ T5217] el0_svc+0x78/0x1d0 [ 72.831370][ T5217] el0t_64_sync_handler+0xcc/0xe4 [ 72.832266][ T5217] el0t_64_sync+0x1a0/0x1a4 [ 72.833070][ T5217] irq event stamp: 78358 [ 72.833788][ T5217] hardirqs last enabled at (78357): [] __up_console_sem+0xb4/0xfc [ 72.835369][ T5217] hardirqs last disabled at (78358): [] el1_dbg+0x24/0x80 [ 72.836788][ T5217] softirqs last enabled at (78336): [] handle_softirqs+0xa70/0xc14 [ 72.838355][ T5217] softirqs last disabled at (78305): [] __irq_exit_rcu+0x240/0x434 [ 72.840040][ T5217] ---[ end trace 7725cedd7cb04569 ]--- [ 72.841491][ T5217] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 72.843159][ T5217] BTRFS info (device loop0): forced readonly [ 72.972798][ T5239] loop0: detected capacity change from 0 to 32768 [ 72.980484][ T5239] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.40 (5239) [ 72.985069][ T5239] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 72.986668][ T5239] BTRFS info (device loop0): using free space tree [ 72.987856][ T5239] BTRFS info (device loop0): has skinny extents [ 72.998724][ T5239] BTRFS info (device loop0): enabling ssd optimizations [ 73.002808][ T5239] FAULT_INJECTION: forcing a failure. [ 73.002808][ T5239] name failslab, interval 1, probability 0, space 0, times 0 [ 73.005002][ T5239] CPU: 0 PID: 5239 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 73.006523][ T5239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 73.008284][ T5239] Call trace: [ 73.008919][ T5239] dump_backtrace+0x0/0x458 [ 73.009793][ T5239] show_stack+0x2c/0x3c [ 73.010589][ T5239] __dump_stack+0x30/0x40 [ 73.011413][ T5239] dump_stack_lvl+0xf4/0x15c [ 73.012240][ T5239] dump_stack+0x1c/0x5c [ 73.012982][ T5239] should_fail+0x3c8/0x520 [ 73.013780][ T5239] __should_failslab+0xbc/0x10c [ 73.014647][ T5239] should_failslab+0x10/0x28 [ 73.015470][ T5239] slab_pre_alloc_hook+0x64/0xe8 [ 73.016355][ T5239] kmem_cache_alloc+0x94/0x3d8 [ 73.017204][ T5239] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 73.018275][ T5239] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 73.019381][ T5239] btrfs_insert_replace_extent+0x818/0x9b0 [ 73.020635][ T5239] btrfs_replace_file_extents+0x8a8/0x1284 [ 73.021828][ T5239] __btrfs_prealloc_file_range+0x35c/0xb80 [ 73.022946][ T5239] btrfs_prealloc_file_range+0x60/0x7c [ 73.023941][ T5239] btrfs_fallocate+0xcb0/0x1720 [ 73.024819][ T5239] vfs_fallocate+0x4a4/0x5fc [ 73.025645][ T5239] __arm64_sys_fallocate+0xc4/0x114 [ 73.026598][ T5239] invoke_syscall+0x98/0x28c [ 73.027436][ T5239] el0_svc_common+0x13c/0x258 [ 73.028268][ T5239] do_el0_svc+0x5c/0x140 [ 73.029087][ T5239] el0_svc+0x78/0x1d0 [ 73.029836][ T5239] el0t_64_sync_handler+0xcc/0xe4 [ 73.030787][ T5239] el0t_64_sync+0x1a0/0x1a4 [ 73.033959][ T5239] ------------[ cut here ]------------ [ 73.035054][ T5239] WARNING: CPU: 0 PID: 5239 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 73.036840][ T5239] Modules linked in: [ 73.037496][ T5239] CPU: 0 PID: 5239 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 73.039052][ T5239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 73.040946][ T5239] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.042451][ T5239] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 73.043682][ T5239] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 73.044901][ T5239] sp : ffff800021d376c0 [ 73.045720][ T5239] x29: ffff800021d377e0 x28: 00000000fffffff4 x27: ffff800021d37980 [ 73.047335][ T5239] x26: 0000000000000000 x25: dfff800000000000 x24: ffff7000043a6ee8 [ 73.048957][ T5239] x23: ffff0000ed4debf0 x22: ffff0000ded994d0 x21: ffff0000d5967a00 [ 73.050587][ T5239] x20: 1fffe0001bdb32a5 x19: ffff0000ded99528 x18: 0000000000000000 [ 73.052223][ T5239] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 73.053818][ T5239] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 73.055359][ T5239] x11: ff80800008300a38 x10: 0000000000000000 x9 : 90cb5aa32c74bb00 [ 73.056914][ T5239] x8 : 90cb5aa32c74bb00 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.058414][ T5239] x5 : ffff800021d36fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 73.059935][ T5239] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.061437][ T5239] Call trace: [ 73.062055][ T5239] btrfs_replace_file_extents+0xd18/0x1284 [ 73.063157][ T5239] __btrfs_prealloc_file_range+0x35c/0xb80 [ 73.064230][ T5239] btrfs_prealloc_file_range+0x60/0x7c [ 73.065287][ T5239] btrfs_fallocate+0xcb0/0x1720 [ 73.066265][ T5239] vfs_fallocate+0x4a4/0x5fc [ 73.067196][ T5239] __arm64_sys_fallocate+0xc4/0x114 [ 73.068226][ T5239] invoke_syscall+0x98/0x28c [ 73.069046][ T5239] el0_svc_common+0x13c/0x258 [ 73.069886][ T5239] do_el0_svc+0x5c/0x140 [ 73.070685][ T5239] el0_svc+0x78/0x1d0 [ 73.071392][ T5239] el0t_64_sync_handler+0xcc/0xe4 [ 73.072358][ T5239] el0t_64_sync+0x1a0/0x1a4 [ 73.073194][ T5239] irq event stamp: 78798 [ 73.073986][ T5239] hardirqs last enabled at (78797): [] __up_console_sem+0xb4/0xfc [ 73.075668][ T5239] hardirqs last disabled at (78798): [] el1_dbg+0x24/0x80 [ 73.077276][ T5239] softirqs last enabled at (78776): [] handle_softirqs+0xa70/0xc14 [ 73.079134][ T5239] softirqs last disabled at (78695): [] __irq_exit_rcu+0x240/0x434 [ 73.081010][ T5239] ---[ end trace 7725cedd7cb0456a ]--- [ 73.083912][ T5239] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 73.085640][ T5239] BTRFS info (device loop0): forced readonly [ 73.323273][ T5261] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.41 (5261) [ 73.326841][ T5261] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 73.328634][ T5261] BTRFS info (device loop0): using free space tree [ 73.329736][ T5261] BTRFS info (device loop0): has skinny extents [ 73.338319][ T5261] BTRFS info (device loop0): enabling ssd optimizations [ 73.342883][ T5261] FAULT_INJECTION: forcing a failure. [ 73.342883][ T5261] name failslab, interval 1, probability 0, space 0, times 0 [ 73.345109][ T5261] CPU: 0 PID: 5261 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 73.346722][ T5261] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 73.348662][ T5261] Call trace: [ 73.349291][ T5261] dump_backtrace+0x0/0x458 [ 73.350127][ T5261] show_stack+0x2c/0x3c [ 73.350921][ T5261] __dump_stack+0x30/0x40 [ 73.351757][ T5261] dump_stack_lvl+0xf4/0x15c [ 73.352651][ T5261] dump_stack+0x1c/0x5c [ 73.353398][ T5261] should_fail+0x3c8/0x520 [ 73.354155][ T5261] __should_failslab+0xbc/0x10c [ 73.355014][ T5261] should_failslab+0x10/0x28 [ 73.355834][ T5261] slab_pre_alloc_hook+0x64/0xe8 [ 73.356727][ T5261] kmem_cache_alloc+0x94/0x3d8 [ 73.357532][ T5261] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 73.358524][ T5261] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 73.359606][ T5261] btrfs_insert_replace_extent+0x818/0x9b0 [ 73.360652][ T5261] btrfs_replace_file_extents+0x8a8/0x1284 [ 73.361652][ T5261] __btrfs_prealloc_file_range+0x35c/0xb80 [ 73.362704][ T5261] btrfs_prealloc_file_range+0x60/0x7c [ 73.363736][ T5261] btrfs_fallocate+0xcb0/0x1720 [ 73.364638][ T5261] vfs_fallocate+0x4a4/0x5fc [ 73.365495][ T5261] __arm64_sys_fallocate+0xc4/0x114 [ 73.366433][ T5261] invoke_syscall+0x98/0x28c [ 73.367226][ T5261] el0_svc_common+0x13c/0x258 [ 73.368048][ T5261] do_el0_svc+0x5c/0x140 [ 73.368814][ T5261] el0_svc+0x78/0x1d0 [ 73.369532][ T5261] el0t_64_sync_handler+0xcc/0xe4 [ 73.370437][ T5261] el0t_64_sync+0x1a0/0x1a4 [ 73.372952][ T5261] ------------[ cut here ]------------ [ 73.374043][ T5261] WARNING: CPU: 0 PID: 5261 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 73.375658][ T5261] Modules linked in: [ 73.376309][ T5261] CPU: 0 PID: 5261 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 73.377809][ T5261] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 73.379558][ T5261] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.381198][ T5261] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 73.382500][ T5261] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 73.383675][ T5261] sp : ffff800021e976c0 [ 73.384450][ T5261] x29: ffff800021e977e0 x28: 00000000fffffff4 x27: ffff800021e97980 [ 73.386178][ T5261] x26: 0000000000000000 x25: dfff800000000000 x24: ffff7000043d2ee8 [ 73.387902][ T5261] x23: ffff0000e2bcebf0 x22: ffff0000ded99c60 x21: ffff0000d8aa7200 [ 73.389510][ T5261] x20: 1fffe0001bdb3397 x19: ffff0000ded99cb8 x18: 0000000000000000 [ 73.391166][ T5261] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 73.392634][ T5261] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 73.394334][ T5261] x11: ff80800008300a38 x10: 0000000000000000 x9 : 21f6b3f222daaa00 [ 73.396048][ T5261] x8 : 21f6b3f222daaa00 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.397693][ T5261] x5 : ffff800021e96fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 73.399363][ T5261] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.401023][ T5261] Call trace: [ 73.401698][ T5261] btrfs_replace_file_extents+0xd18/0x1284 [ 73.402931][ T5261] __btrfs_prealloc_file_range+0x35c/0xb80 [ 73.404191][ T5261] btrfs_prealloc_file_range+0x60/0x7c [ 73.405351][ T5261] btrfs_fallocate+0xcb0/0x1720 [ 73.406380][ T5261] vfs_fallocate+0x4a4/0x5fc [ 73.407290][ T5261] __arm64_sys_fallocate+0xc4/0x114 [ 73.408205][ T5261] invoke_syscall+0x98/0x28c [ 73.409005][ T5261] el0_svc_common+0x13c/0x258 [ 73.409862][ T5261] do_el0_svc+0x5c/0x140 [ 73.410637][ T5261] el0_svc+0x78/0x1d0 [ 73.411341][ T5261] el0t_64_sync_handler+0xcc/0xe4 [ 73.412279][ T5261] el0t_64_sync+0x1a0/0x1a4 [ 73.413137][ T5261] irq event stamp: 78646 [ 73.413918][ T5261] hardirqs last enabled at (78645): [] __up_console_sem+0xb4/0xfc [ 73.415780][ T5261] hardirqs last disabled at (78646): [] el1_dbg+0x24/0x80 [ 73.417518][ T5261] softirqs last enabled at (78624): [] handle_softirqs+0xa70/0xc14 [ 73.419265][ T5261] softirqs last disabled at (78603): [] __irq_exit_rcu+0x240/0x434 [ 73.420954][ T5261] ---[ end trace 7725cedd7cb0456b ]--- [ 73.422413][ T5261] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 73.424800][ T5261] BTRFS info (device loop0): forced readonly [ 73.629528][ T5284] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.42 (5284) [ 73.634519][ T5284] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 73.636146][ T5284] BTRFS info (device loop0): using free space tree [ 73.637291][ T5284] BTRFS info (device loop0): has skinny extents [ 73.645525][ T5284] BTRFS info (device loop0): enabling ssd optimizations [ 73.649441][ T5284] FAULT_INJECTION: forcing a failure. [ 73.649441][ T5284] name failslab, interval 1, probability 0, space 0, times 0 [ 73.651710][ T5284] CPU: 0 PID: 5284 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 73.653275][ T5284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 73.655197][ T5284] Call trace: [ 73.655790][ T5284] dump_backtrace+0x0/0x458 [ 73.656622][ T5284] show_stack+0x2c/0x3c [ 73.657379][ T5284] __dump_stack+0x30/0x40 [ 73.658205][ T5284] dump_stack_lvl+0xf4/0x15c [ 73.659080][ T5284] dump_stack+0x1c/0x5c [ 73.659785][ T5284] should_fail+0x3c8/0x520 [ 73.660582][ T5284] __should_failslab+0xbc/0x10c [ 73.661454][ T5284] should_failslab+0x10/0x28 [ 73.662227][ T5284] slab_pre_alloc_hook+0x64/0xe8 [ 73.663029][ T5284] kmem_cache_alloc+0x94/0x3d8 [ 73.663844][ T5284] btrfs_add_delayed_data_ref+0x174/0xd64 [ 73.664803][ T5284] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 73.665908][ T5284] btrfs_insert_replace_extent+0x818/0x9b0 [ 73.666963][ T5284] btrfs_replace_file_extents+0x8a8/0x1284 [ 73.668018][ T5284] __btrfs_prealloc_file_range+0x35c/0xb80 [ 73.669047][ T5284] btrfs_prealloc_file_range+0x60/0x7c [ 73.670023][ T5284] btrfs_fallocate+0xcb0/0x1720 [ 73.670897][ T5284] vfs_fallocate+0x4a4/0x5fc [ 73.671642][ T5284] __arm64_sys_fallocate+0xc4/0x114 [ 73.672571][ T5284] invoke_syscall+0x98/0x28c [ 73.673399][ T5284] el0_svc_common+0x13c/0x258 [ 73.674257][ T5284] do_el0_svc+0x5c/0x140 [ 73.675063][ T5284] el0_svc+0x78/0x1d0 [ 73.675825][ T5284] el0t_64_sync_handler+0xcc/0xe4 [ 73.676705][ T5284] el0t_64_sync+0x1a0/0x1a4 [ 73.679025][ T5284] ------------[ cut here ]------------ [ 73.680092][ T5284] WARNING: CPU: 0 PID: 5284 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 73.681833][ T5284] Modules linked in: [ 73.682466][ T5284] CPU: 0 PID: 5284 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 73.683900][ T5284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 73.685582][ T5284] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.686893][ T5284] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 73.687964][ T5284] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 73.689111][ T5284] sp : ffff8000220d76c0 [ 73.689984][ T5284] x29: ffff8000220d77e0 x28: 00000000fffffff4 x27: ffff8000220d7980 [ 73.691673][ T5284] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000441aee8 [ 73.693342][ T5284] x23: ffff0000e2bcc4b0 x22: ffff0000ded99e70 x21: ffff0000c87cfc00 [ 73.694913][ T5284] x20: 1fffe0001bdb33d9 x19: ffff0000ded99ec8 x18: 0000000000000000 [ 73.696486][ T5284] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 73.697981][ T5284] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 73.699327][ T5284] x11: ff80800008300a38 x10: 0000000000000000 x9 : 9e0402d022259500 [ 73.700696][ T5284] x8 : 9e0402d022259500 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.702127][ T5284] x5 : ffff8000220d6fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 73.703602][ T5284] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.705122][ T5284] Call trace: [ 73.705719][ T5284] btrfs_replace_file_extents+0xd18/0x1284 [ 73.706778][ T5284] __btrfs_prealloc_file_range+0x35c/0xb80 [ 73.707809][ T5284] btrfs_prealloc_file_range+0x60/0x7c [ 73.708785][ T5284] btrfs_fallocate+0xcb0/0x1720 [ 73.709639][ T5284] vfs_fallocate+0x4a4/0x5fc [ 73.710420][ T5284] __arm64_sys_fallocate+0xc4/0x114 [ 73.711347][ T5284] invoke_syscall+0x98/0x28c [ 73.712194][ T5284] el0_svc_common+0x13c/0x258 [ 73.713059][ T5284] do_el0_svc+0x5c/0x140 [ 73.713865][ T5284] el0_svc+0x78/0x1d0 [ 73.714576][ T5284] el0t_64_sync_handler+0xcc/0xe4 [ 73.715624][ T5284] el0t_64_sync+0x1a0/0x1a4 [ 73.716603][ T5284] irq event stamp: 78592 [ 73.717409][ T5284] hardirqs last enabled at (78591): [] __up_console_sem+0xb4/0xfc [ 73.719429][ T5284] hardirqs last disabled at (78592): [] el1_dbg+0x24/0x80 [ 73.721208][ T5284] softirqs last enabled at (78572): [] handle_softirqs+0xa70/0xc14 [ 73.723176][ T5284] softirqs last disabled at (78525): [] __irq_exit_rcu+0x240/0x434 [ 73.725214][ T5284] ---[ end trace 7725cedd7cb0456c ]--- [ 73.727276][ T5284] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 73.728987][ T5284] BTRFS info (device loop0): forced readonly [ 73.949690][ T5307] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.43 (5307) [ 73.953081][ T5307] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 73.954750][ T5307] BTRFS info (device loop0): using free space tree [ 73.956045][ T5307] BTRFS info (device loop0): has skinny extents [ 73.963864][ T5307] BTRFS info (device loop0): enabling ssd optimizations [ 73.967881][ T5307] FAULT_INJECTION: forcing a failure. [ 73.967881][ T5307] name failslab, interval 1, probability 0, space 0, times 0 [ 73.970216][ T5307] CPU: 0 PID: 5307 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 73.971594][ T5307] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 73.973159][ T5307] Call trace: [ 73.973641][ T5307] dump_backtrace+0x0/0x458 [ 73.974321][ T5307] show_stack+0x2c/0x3c [ 73.974967][ T5307] __dump_stack+0x30/0x40 [ 73.975715][ T5307] dump_stack_lvl+0xf4/0x15c [ 73.976500][ T5307] dump_stack+0x1c/0x5c [ 73.977241][ T5307] should_fail+0x3c8/0x520 [ 73.978076][ T5307] __should_failslab+0xbc/0x10c [ 73.978994][ T5307] should_failslab+0x10/0x28 [ 73.979838][ T5307] slab_pre_alloc_hook+0x64/0xe8 [ 73.980741][ T5307] kmem_cache_alloc+0x94/0x3d8 [ 73.981517][ T5307] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 73.982475][ T5307] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 73.983543][ T5307] btrfs_insert_replace_extent+0x818/0x9b0 [ 73.984586][ T5307] btrfs_replace_file_extents+0x8a8/0x1284 [ 73.985584][ T5307] __btrfs_prealloc_file_range+0x35c/0xb80 [ 73.986634][ T5307] btrfs_prealloc_file_range+0x60/0x7c [ 73.987660][ T5307] btrfs_fallocate+0xcb0/0x1720 [ 73.988520][ T5307] vfs_fallocate+0x4a4/0x5fc [ 73.989345][ T5307] __arm64_sys_fallocate+0xc4/0x114 [ 73.990232][ T5307] invoke_syscall+0x98/0x28c [ 73.991042][ T5307] el0_svc_common+0x13c/0x258 [ 73.991814][ T5307] do_el0_svc+0x5c/0x140 [ 73.992566][ T5307] el0_svc+0x78/0x1d0 [ 73.993239][ T5307] el0t_64_sync_handler+0xcc/0xe4 [ 73.994109][ T5307] el0t_64_sync+0x1a0/0x1a4 [ 73.995126][ T5307] ------------[ cut here ]------------ [ 73.996108][ T5307] WARNING: CPU: 0 PID: 5307 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 73.997725][ T5307] Modules linked in: [ 73.998338][ T5307] CPU: 0 PID: 5307 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 73.999751][ T5307] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.001411][ T5307] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.002703][ T5307] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 74.003780][ T5307] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 74.004898][ T5307] sp : ffff8000221d76c0 [ 74.005617][ T5307] x29: ffff8000221d77e0 x28: 00000000fffffff4 x27: ffff8000221d7980 [ 74.007020][ T5307] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000443aee8 [ 74.008486][ T5307] x23: ffff0000e2bcbae0 x22: ffff0000ded99160 x21: ffff0000d2df0100 [ 74.009864][ T5307] x20: 1fffe0001bdb3237 x19: ffff0000ded991b8 x18: 0000000000000000 [ 74.011220][ T5307] x17: 0000000000000000 x16: ffff8000082c67fc x15: 0000000000000000 [ 74.012615][ T5307] x14: 0000000000000001 x13: 1ffff0000443adf8 x12: 0000000000000000 [ 74.014048][ T5307] x11: ff80800008300a38 x10: 0000000000000000 x9 : ef8bd698a926dc00 [ 74.015398][ T5307] x8 : ef8bd698a926dc00 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.016724][ T5307] x5 : ffff8000221d6fd8 x4 : ffff80001447f520 x3 : ffff800008308360 [ 74.018143][ T5307] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.019654][ T5307] Call trace: [ 74.020243][ T5307] btrfs_replace_file_extents+0xd18/0x1284 [ 74.021281][ T5307] __btrfs_prealloc_file_range+0x35c/0xb80 [ 74.022343][ T5307] btrfs_prealloc_file_range+0x60/0x7c [ 74.023298][ T5307] btrfs_fallocate+0xcb0/0x1720 [ 74.024148][ T5307] vfs_fallocate+0x4a4/0x5fc [ 74.024889][ T5307] __arm64_sys_fallocate+0xc4/0x114 [ 74.025728][ T5307] invoke_syscall+0x98/0x28c [ 74.026493][ T5307] el0_svc_common+0x13c/0x258 [ 74.027321][ T5307] do_el0_svc+0x5c/0x140 [ 74.028015][ T5307] el0_svc+0x78/0x1d0 [ 74.028662][ T5307] el0t_64_sync_handler+0xcc/0xe4 [ 74.029522][ T5307] el0t_64_sync+0x1a0/0x1a4 [ 74.030262][ T5307] irq event stamp: 78852 [ 74.030974][ T5307] hardirqs last enabled at (78851): [] __up_console_sem+0xb4/0xfc [ 74.032694][ T5307] hardirqs last disabled at (78852): [] el1_dbg+0x24/0x80 [ 74.034262][ T5307] softirqs last enabled at (78830): [] handle_softirqs+0xa70/0xc14 [ 74.036049][ T5307] softirqs last disabled at (78799): [] __irq_exit_rcu+0x240/0x434 [ 74.037837][ T5307] ---[ end trace 7725cedd7cb0456d ]--- [ 74.039116][ T5307] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 74.040881][ T5307] BTRFS info (device loop0): forced readonly [ 74.268718][ T5329] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.44 (5329) [ 74.275294][ T5329] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.276778][ T5329] BTRFS info (device loop0): using free space tree [ 74.277901][ T5329] BTRFS info (device loop0): has skinny extents [ 74.286462][ T5329] BTRFS info (device loop0): enabling ssd optimizations [ 74.290496][ T5329] FAULT_INJECTION: forcing a failure. [ 74.290496][ T5329] name failslab, interval 1, probability 0, space 0, times 0 [ 74.292707][ T5329] CPU: 1 PID: 5329 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 74.294147][ T5329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.295925][ T5329] Call trace: [ 74.296500][ T5329] dump_backtrace+0x0/0x458 [ 74.297320][ T5329] show_stack+0x2c/0x3c [ 74.298051][ T5329] __dump_stack+0x30/0x40 [ 74.298837][ T5329] dump_stack_lvl+0xf4/0x15c [ 74.299648][ T5329] dump_stack+0x1c/0x5c [ 74.300412][ T5329] should_fail+0x3c8/0x520 [ 74.301238][ T5329] __should_failslab+0xbc/0x10c [ 74.302104][ T5329] should_failslab+0x10/0x28 [ 74.302907][ T5329] slab_pre_alloc_hook+0x64/0xe8 [ 74.303741][ T5329] kmem_cache_alloc+0x94/0x3d8 [ 74.304695][ T5329] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 74.305772][ T5329] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 74.306971][ T5329] btrfs_insert_replace_extent+0x818/0x9b0 [ 74.308067][ T5329] btrfs_replace_file_extents+0x8a8/0x1284 [ 74.309144][ T5329] __btrfs_prealloc_file_range+0x35c/0xb80 [ 74.310363][ T5329] btrfs_prealloc_file_range+0x60/0x7c [ 74.311396][ T5329] btrfs_fallocate+0xcb0/0x1720 [ 74.312399][ T5329] vfs_fallocate+0x4a4/0x5fc [ 74.313234][ T5329] __arm64_sys_fallocate+0xc4/0x114 [ 74.314302][ T5329] invoke_syscall+0x98/0x28c [ 74.315169][ T5329] el0_svc_common+0x13c/0x258 [ 74.315971][ T5329] do_el0_svc+0x5c/0x140 [ 74.316689][ T5329] el0_svc+0x78/0x1d0 [ 74.317384][ T5329] el0t_64_sync_handler+0xcc/0xe4 [ 74.318296][ T5329] el0t_64_sync+0x1a0/0x1a4 [ 74.320702][ T5329] ------------[ cut here ]------------ [ 74.321735][ T5329] WARNING: CPU: 1 PID: 5329 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 74.323393][ T5329] Modules linked in: [ 74.324012][ T5329] CPU: 1 PID: 5329 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 74.325438][ T5329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.327057][ T5329] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.328368][ T5329] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 74.329552][ T5329] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 74.330660][ T5329] sp : ffff8000220d76c0 [ 74.331420][ T5329] x29: ffff8000220d77e0 x28: 00000000fffffff4 x27: ffff8000220d7980 [ 74.332867][ T5329] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000441aee8 [ 74.334541][ T5329] x23: ffff0000e2bc9d70 x22: ffff0000dd733210 x21: ffff0000d1e6f500 [ 74.336219][ T5329] x20: 1fffe0001bae664d x19: ffff0000dd733268 x18: 0000000000000000 [ 74.337646][ T5329] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 74.339011][ T5329] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 74.340461][ T5329] x11: ff80800008300a38 x10: 0000000000000000 x9 : b19368adc5f9ff00 [ 74.341933][ T5329] x8 : b19368adc5f9ff00 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.343368][ T5329] x5 : ffff8000220d6fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 74.344725][ T5329] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.346156][ T5329] Call trace: [ 74.346737][ T5329] btrfs_replace_file_extents+0xd18/0x1284 [ 74.347864][ T5329] __btrfs_prealloc_file_range+0x35c/0xb80 [ 74.348977][ T5329] btrfs_prealloc_file_range+0x60/0x7c [ 74.349969][ T5329] btrfs_fallocate+0xcb0/0x1720 [ 74.350837][ T5329] vfs_fallocate+0x4a4/0x5fc [ 74.351692][ T5329] __arm64_sys_fallocate+0xc4/0x114 [ 74.352680][ T5329] invoke_syscall+0x98/0x28c [ 74.353543][ T5329] el0_svc_common+0x13c/0x258 [ 74.354392][ T5329] do_el0_svc+0x5c/0x140 [ 74.355244][ T5329] el0_svc+0x78/0x1d0 [ 74.356008][ T5329] el0t_64_sync_handler+0xcc/0xe4 [ 74.356961][ T5329] el0t_64_sync+0x1a0/0x1a4 [ 74.357865][ T5329] irq event stamp: 78586 [ 74.358607][ T5329] hardirqs last enabled at (78585): [] __up_console_sem+0xb4/0xfc [ 74.360490][ T5329] hardirqs last disabled at (78586): [] el1_dbg+0x24/0x80 [ 74.362159][ T5329] softirqs last enabled at (78564): [] handle_softirqs+0xa70/0xc14 [ 74.364050][ T5329] softirqs last disabled at (78517): [] __irq_exit_rcu+0x240/0x434 [ 74.365811][ T5329] ---[ end trace 7725cedd7cb0456e ]--- [ 74.369535][ T5329] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 74.371271][ T5329] BTRFS info (device loop0): forced readonly [ 74.579709][ T5351] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.45 (5351) [ 74.583133][ T5351] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.584579][ T5351] BTRFS info (device loop0): using free space tree [ 74.585693][ T5351] BTRFS info (device loop0): has skinny extents [ 74.593855][ T5351] BTRFS info (device loop0): enabling ssd optimizations [ 74.597682][ T5351] FAULT_INJECTION: forcing a failure. [ 74.597682][ T5351] name failslab, interval 1, probability 0, space 0, times 0 [ 74.600003][ T5351] CPU: 0 PID: 5351 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 74.601398][ T5351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.603043][ T5351] Call trace: [ 74.603604][ T5351] dump_backtrace+0x0/0x458 [ 74.604337][ T5351] show_stack+0x2c/0x3c [ 74.604962][ T5351] __dump_stack+0x30/0x40 [ 74.605679][ T5351] dump_stack_lvl+0xf4/0x15c [ 74.606427][ T5351] dump_stack+0x1c/0x5c [ 74.607097][ T5351] should_fail+0x3c8/0x520 [ 74.607821][ T5351] __should_failslab+0xbc/0x10c [ 74.608631][ T5351] should_failslab+0x10/0x28 [ 74.609405][ T5351] slab_pre_alloc_hook+0x64/0xe8 [ 74.610278][ T5351] kmem_cache_alloc+0x94/0x3d8 [ 74.611132][ T5351] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 74.612113][ T5351] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 74.613256][ T5351] btrfs_insert_replace_extent+0x818/0x9b0 [ 74.614306][ T5351] btrfs_replace_file_extents+0x8a8/0x1284 [ 74.615385][ T5351] __btrfs_prealloc_file_range+0x35c/0xb80 [ 74.616465][ T5351] btrfs_prealloc_file_range+0x60/0x7c [ 74.617367][ T5351] btrfs_fallocate+0xcb0/0x1720 [ 74.618185][ T5351] vfs_fallocate+0x4a4/0x5fc [ 74.618941][ T5351] __arm64_sys_fallocate+0xc4/0x114 [ 74.619755][ T5351] invoke_syscall+0x98/0x28c [ 74.620513][ T5351] el0_svc_common+0x13c/0x258 [ 74.621313][ T5351] do_el0_svc+0x5c/0x140 [ 74.622034][ T5351] el0_svc+0x78/0x1d0 [ 74.622720][ T5351] el0t_64_sync_handler+0xcc/0xe4 [ 74.623552][ T5351] el0t_64_sync+0x1a0/0x1a4 [ 74.624754][ T5351] ------------[ cut here ]------------ [ 74.625833][ T5351] WARNING: CPU: 0 PID: 5351 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 74.627361][ T5351] Modules linked in: [ 74.627927][ T5351] CPU: 0 PID: 5351 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 74.629402][ T5351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.631212][ T5351] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.632635][ T5351] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 74.633753][ T5351] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 74.634872][ T5351] sp : ffff8000223576c0 [ 74.635574][ T5351] x29: ffff8000223577e0 x28: 00000000fffffff4 x27: ffff800022357980 [ 74.636953][ T5351] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000446aee8 [ 74.638390][ T5351] x23: ffff0000e2bc89d0 x22: ffff0000ded99370 x21: ffff0000ca710300 [ 74.639928][ T5351] x20: 1fffe0001bdb3279 x19: ffff0000ded993c8 x18: 0000000000000000 [ 74.641439][ T5351] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 74.642949][ T5351] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 74.644495][ T5351] x11: ff80800008300a38 x10: 0000000000000000 x9 : d9c62ec0e52ff500 [ 74.645987][ T5351] x8 : d9c62ec0e52ff500 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.647457][ T5351] x5 : ffff800022356fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 74.648889][ T5351] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.650343][ T5351] Call trace: [ 74.650924][ T5351] btrfs_replace_file_extents+0xd18/0x1284 [ 74.651912][ T5351] __btrfs_prealloc_file_range+0x35c/0xb80 [ 74.652897][ T5351] btrfs_prealloc_file_range+0x60/0x7c [ 74.653797][ T5351] btrfs_fallocate+0xcb0/0x1720 [ 74.654617][ T5351] vfs_fallocate+0x4a4/0x5fc [ 74.655406][ T5351] __arm64_sys_fallocate+0xc4/0x114 [ 74.656315][ T5351] invoke_syscall+0x98/0x28c [ 74.657101][ T5351] el0_svc_common+0x13c/0x258 [ 74.657918][ T5351] do_el0_svc+0x5c/0x140 [ 74.658720][ T5351] el0_svc+0x78/0x1d0 [ 74.659512][ T5351] el0t_64_sync_handler+0xcc/0xe4 [ 74.660402][ T5351] el0t_64_sync+0x1a0/0x1a4 [ 74.661209][ T5351] irq event stamp: 78762 [ 74.661977][ T5351] hardirqs last enabled at (78761): [] __up_console_sem+0xb4/0xfc [ 74.663673][ T5351] hardirqs last disabled at (78762): [] el1_dbg+0x24/0x80 [ 74.665222][ T5351] softirqs last enabled at (78740): [] handle_softirqs+0xa70/0xc14 [ 74.666925][ T5351] softirqs last disabled at (78715): [] __irq_exit_rcu+0x240/0x434 [ 74.668646][ T5351] ---[ end trace 7725cedd7cb0456f ]--- [ 74.669961][ T5351] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 74.671549][ T5351] BTRFS info (device loop0): forced readonly [ 74.810838][ T5373] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.46 (5373) [ 74.814991][ T5373] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.816493][ T5373] BTRFS info (device loop0): using free space tree [ 74.817650][ T5373] BTRFS info (device loop0): has skinny extents [ 74.824558][ T5373] BTRFS info (device loop0): enabling ssd optimizations [ 74.827675][ T5373] FAULT_INJECTION: forcing a failure. [ 74.827675][ T5373] name failslab, interval 1, probability 0, space 0, times 0 [ 74.830431][ T5373] CPU: 1 PID: 5373 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 74.832008][ T5373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.833752][ T5373] Call trace: [ 74.834275][ T5373] dump_backtrace+0x0/0x458 [ 74.835023][ T5373] show_stack+0x2c/0x3c [ 74.835698][ T5373] __dump_stack+0x30/0x40 [ 74.836475][ T5373] dump_stack_lvl+0xf4/0x15c [ 74.837263][ T5373] dump_stack+0x1c/0x5c [ 74.837961][ T5373] should_fail+0x3c8/0x520 [ 74.838717][ T5373] __should_failslab+0xbc/0x10c [ 74.839606][ T5373] should_failslab+0x10/0x28 [ 74.840407][ T5373] slab_pre_alloc_hook+0x64/0xe8 [ 74.841255][ T5373] kmem_cache_alloc+0x94/0x3d8 [ 74.842087][ T5373] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 74.843035][ T5373] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 74.844084][ T5373] btrfs_insert_replace_extent+0x818/0x9b0 [ 74.845088][ T5373] btrfs_replace_file_extents+0x8a8/0x1284 [ 74.846098][ T5373] __btrfs_prealloc_file_range+0x35c/0xb80 [ 74.847168][ T5373] btrfs_prealloc_file_range+0x60/0x7c [ 74.848182][ T5373] btrfs_fallocate+0xcb0/0x1720 [ 74.849091][ T5373] vfs_fallocate+0x4a4/0x5fc [ 74.849944][ T5373] __arm64_sys_fallocate+0xc4/0x114 [ 74.850814][ T5373] invoke_syscall+0x98/0x28c [ 74.851651][ T5373] el0_svc_common+0x13c/0x258 [ 74.852453][ T5373] do_el0_svc+0x5c/0x140 [ 74.853240][ T5373] el0_svc+0x78/0x1d0 [ 74.853963][ T5373] el0t_64_sync_handler+0xcc/0xe4 [ 74.854949][ T5373] el0t_64_sync+0x1a0/0x1a4 [ 74.857184][ T5373] ------------[ cut here ]------------ [ 74.858251][ T5373] WARNING: CPU: 1 PID: 5373 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 74.860000][ T5373] Modules linked in: [ 74.860678][ T5373] CPU: 1 PID: 5373 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 74.862152][ T5373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.864010][ T5373] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.865391][ T5373] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 74.866449][ T5373] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 74.867589][ T5373] sp : ffff8000223576c0 [ 74.868343][ T5373] x29: ffff8000223577e0 x28: 00000000fffffff4 x27: ffff800022357980 [ 74.869830][ T5373] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000446aee8 [ 74.871312][ T5373] x23: ffff0000ed4c1d70 x22: ffff0000dd733840 x21: ffff0000d3023500 [ 74.872697][ T5373] x20: 1fffe0001bae6713 x19: ffff0000dd733898 x18: 0000000000000000 [ 74.874083][ T5373] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 74.875489][ T5373] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 74.876910][ T5373] x11: ff80800008300a38 x10: 0000000000000000 x9 : 04435cd0ff8a0c00 [ 74.878587][ T5373] x8 : 04435cd0ff8a0c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.880284][ T5373] x5 : ffff800022356fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 74.881931][ T5373] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.883567][ T5373] Call trace: [ 74.884144][ T5373] btrfs_replace_file_extents+0xd18/0x1284 [ 74.885198][ T5373] __btrfs_prealloc_file_range+0x35c/0xb80 [ 74.886247][ T5373] btrfs_prealloc_file_range+0x60/0x7c [ 74.887184][ T5373] btrfs_fallocate+0xcb0/0x1720 [ 74.888036][ T5373] vfs_fallocate+0x4a4/0x5fc [ 74.888791][ T5373] __arm64_sys_fallocate+0xc4/0x114 [ 74.889708][ T5373] invoke_syscall+0x98/0x28c [ 74.890655][ T5373] el0_svc_common+0x13c/0x258 [ 74.891602][ T5373] do_el0_svc+0x5c/0x140 [ 74.892384][ T5373] el0_svc+0x78/0x1d0 [ 74.893234][ T5373] el0t_64_sync_handler+0xcc/0xe4 [ 74.894194][ T5373] el0t_64_sync+0x1a0/0x1a4 [ 74.895063][ T5373] irq event stamp: 78484 [ 74.895882][ T5373] hardirqs last enabled at (78483): [] __up_console_sem+0xb4/0xfc [ 74.897858][ T5373] hardirqs last disabled at (78484): [] el1_dbg+0x24/0x80 [ 74.899670][ T5373] softirqs last enabled at (78462): [] handle_softirqs+0xa70/0xc14 [ 74.901570][ T5373] softirqs last disabled at (78451): [] __irq_exit_rcu+0x240/0x434 [ 74.903246][ T5373] ---[ end trace 7725cedd7cb04570 ]--- [ 74.906740][ T5373] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 74.908505][ T5373] BTRFS info (device loop0): forced readonly [ 75.113399][ T5396] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.47 (5396) [ 75.116760][ T5396] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.118329][ T5396] BTRFS info (device loop0): using free space tree [ 75.121090][ T5396] BTRFS info (device loop0): has skinny extents [ 75.128104][ T5396] BTRFS info (device loop0): enabling ssd optimizations [ 75.132976][ T5396] FAULT_INJECTION: forcing a failure. [ 75.132976][ T5396] name failslab, interval 1, probability 0, space 0, times 0 [ 75.134982][ T5396] CPU: 1 PID: 5396 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 75.136482][ T5396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 75.138259][ T5396] Call trace: [ 75.138820][ T5396] dump_backtrace+0x0/0x458 [ 75.139609][ T5396] show_stack+0x2c/0x3c [ 75.140349][ T5396] __dump_stack+0x30/0x40 [ 75.141105][ T5396] dump_stack_lvl+0xf4/0x15c [ 75.141933][ T5396] dump_stack+0x1c/0x5c [ 75.142680][ T5396] should_fail+0x3c8/0x520 [ 75.143455][ T5396] __should_failslab+0xbc/0x10c [ 75.144329][ T5396] should_failslab+0x10/0x28 [ 75.145103][ T5396] slab_pre_alloc_hook+0x64/0xe8 [ 75.145970][ T5396] kmem_cache_alloc+0x94/0x3d8 [ 75.146840][ T5396] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 75.147847][ T5396] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 75.148894][ T5396] btrfs_insert_replace_extent+0x818/0x9b0 [ 75.149851][ T5396] btrfs_replace_file_extents+0x8a8/0x1284 [ 75.150822][ T5396] __btrfs_prealloc_file_range+0x35c/0xb80 [ 75.151809][ T5396] btrfs_prealloc_file_range+0x60/0x7c [ 75.152792][ T5396] btrfs_fallocate+0xcb0/0x1720 [ 75.153600][ T5396] vfs_fallocate+0x4a4/0x5fc [ 75.154369][ T5396] __arm64_sys_fallocate+0xc4/0x114 [ 75.155261][ T5396] invoke_syscall+0x98/0x28c [ 75.156071][ T5396] el0_svc_common+0x13c/0x258 [ 75.156863][ T5396] do_el0_svc+0x5c/0x140 [ 75.157576][ T5396] el0_svc+0x78/0x1d0 [ 75.158267][ T5396] el0t_64_sync_handler+0xcc/0xe4 [ 75.159147][ T5396] el0t_64_sync+0x1a0/0x1a4 [ 75.165321][ T5396] ------------[ cut here ]------------ [ 75.166364][ T5396] WARNING: CPU: 1 PID: 5396 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 75.168017][ T5396] Modules linked in: [ 75.168673][ T5396] CPU: 1 PID: 5396 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 75.170131][ T5396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 75.171825][ T5396] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.173480][ T5396] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 75.174731][ T5396] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 75.175912][ T5396] sp : ffff8000226476c0 [ 75.176716][ T5396] x29: ffff8000226477e0 x28: 00000000fffffff4 x27: ffff800022647980 [ 75.178285][ T5396] x26: 0000000000000000 x25: dfff800000000000 x24: ffff7000044c8ee8 [ 75.179742][ T5396] x23: ffff0000e289e220 x22: ffff0000dd733420 x21: ffff0000c8ae6c00 [ 75.181200][ T5396] x20: 1fffe0001bae668f x19: ffff0000dd733478 x18: 0000000000000000 [ 75.182638][ T5396] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 75.184174][ T5396] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 75.185748][ T5396] x11: ff80800008300a38 x10: 0000000000000000 x9 : 16f79db89dbdfb00 [ 75.187353][ T5396] x8 : 16f79db89dbdfb00 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.188789][ T5396] x5 : ffff800022646fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 75.190208][ T5396] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.191619][ T5396] Call trace: [ 75.192177][ T5396] btrfs_replace_file_extents+0xd18/0x1284 [ 75.193181][ T5396] __btrfs_prealloc_file_range+0x35c/0xb80 [ 75.194167][ T5396] btrfs_prealloc_file_range+0x60/0x7c [ 75.195158][ T5396] btrfs_fallocate+0xcb0/0x1720 [ 75.196012][ T5396] vfs_fallocate+0x4a4/0x5fc [ 75.196808][ T5396] __arm64_sys_fallocate+0xc4/0x114 [ 75.197702][ T5396] invoke_syscall+0x98/0x28c [ 75.198421][ T5396] el0_svc_common+0x13c/0x258 [ 75.199198][ T5396] do_el0_svc+0x5c/0x140 [ 75.199868][ T5396] el0_svc+0x78/0x1d0 [ 75.200491][ T5396] el0t_64_sync_handler+0xcc/0xe4 [ 75.201331][ T5396] el0t_64_sync+0x1a0/0x1a4 [ 75.202077][ T5396] irq event stamp: 78834 [ 75.202783][ T5396] hardirqs last enabled at (78833): [] __up_console_sem+0xb4/0xfc [ 75.204391][ T5396] hardirqs last disabled at (78834): [] el1_dbg+0x24/0x80 [ 75.205842][ T5396] softirqs last enabled at (78812): [] handle_softirqs+0xa70/0xc14 [ 75.207476][ T5396] softirqs last disabled at (78801): [] __irq_exit_rcu+0x240/0x434 [ 75.209139][ T5396] ---[ end trace 7725cedd7cb04571 ]--- [ 75.212140][ T5396] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 75.213718][ T5396] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:15 executed programs: 35 [ 75.414796][ T5418] set_capacity_and_notify: 7 callbacks suppressed [ 75.414805][ T5418] loop0: detected capacity change from 0 to 32768 [ 75.469743][ T5418] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.48 (5418) [ 75.473068][ T5418] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.474611][ T5418] BTRFS info (device loop0): using free space tree [ 75.475768][ T5418] BTRFS info (device loop0): has skinny extents [ 75.487976][ T5418] BTRFS info (device loop0): enabling ssd optimizations [ 75.492193][ T5418] FAULT_INJECTION: forcing a failure. [ 75.492193][ T5418] name failslab, interval 1, probability 0, space 0, times 0 [ 75.494719][ T5418] CPU: 0 PID: 5418 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 75.496130][ T5418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 75.497959][ T5418] Call trace: [ 75.498551][ T5418] dump_backtrace+0x0/0x458 [ 75.499342][ T5418] show_stack+0x2c/0x3c [ 75.500082][ T5418] __dump_stack+0x30/0x40 [ 75.500871][ T5418] dump_stack_lvl+0xf4/0x15c [ 75.501690][ T5418] dump_stack+0x1c/0x5c [ 75.502455][ T5418] should_fail+0x3c8/0x520 [ 75.503207][ T5418] __should_failslab+0xbc/0x10c [ 75.504031][ T5418] should_failslab+0x10/0x28 [ 75.504810][ T5418] slab_pre_alloc_hook+0x64/0xe8 [ 75.505631][ T5418] kmem_cache_alloc+0x94/0x3d8 [ 75.506417][ T5418] btrfs_add_delayed_data_ref+0x3f0/0xd64 [ 75.507397][ T5418] btrfs_alloc_reserved_file_extent+0x1a8/0x2c8 [ 75.508474][ T5418] btrfs_insert_replace_extent+0x818/0x9b0 [ 75.509424][ T5418] btrfs_replace_file_extents+0x8a8/0x1284 [ 75.510603][ T5418] __btrfs_prealloc_file_range+0x35c/0xb80 [ 75.511737][ T5418] btrfs_prealloc_file_range+0x60/0x7c [ 75.512823][ T5418] btrfs_fallocate+0xcb0/0x1720 [ 75.513794][ T5418] vfs_fallocate+0x4a4/0x5fc [ 75.514729][ T5418] __arm64_sys_fallocate+0xc4/0x114 [ 75.515828][ T5418] invoke_syscall+0x98/0x28c [ 75.516800][ T5418] el0_svc_common+0x13c/0x258 [ 75.517809][ T5418] do_el0_svc+0x5c/0x140 [ 75.518654][ T5418] el0_svc+0x78/0x1d0 [ 75.519431][ T5418] el0t_64_sync_handler+0xcc/0xe4 [ 75.520405][ T5418] el0t_64_sync+0x1a0/0x1a4 [ 75.522465][ T5418] ------------[ cut here ]------------ [ 75.523367][ T5418] WARNING: CPU: 0 PID: 5418 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xd18/0x1284 [ 75.524946][ T5418] Modules linked in: [ 75.525555][ T5418] CPU: 0 PID: 5418 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 75.526873][ T5418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 75.528406][ T5418] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.529708][ T5418] pc : btrfs_replace_file_extents+0xd18/0x1284 [ 75.530746][ T5418] lr : btrfs_replace_file_extents+0xd18/0x1284 [ 75.531753][ T5418] sp : ffff8000220d76c0 [ 75.532450][ T5418] x29: ffff8000220d77e0 x28: 00000000fffffff4 x27: ffff8000220d7980 [ 75.533825][ T5418] x26: 0000000000000000 x25: dfff800000000000 x24: ffff70000441aee8 [ 75.535199][ T5418] x23: ffff0000ed4db110 x22: ffff0000ded998f0 x21: ffff0000dbe31b00 [ 75.536586][ T5418] x20: 1fffe0001bdb3329 x19: ffff0000ded99948 x18: 0000000000000000 [ 75.538012][ T5418] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 75.539580][ T5418] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 75.541229][ T5418] x11: ff80800008300a38 x10: 0000000000000000 x9 : a22d44398bd9d000 [ 75.542640][ T5418] x8 : a22d44398bd9d000 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.543999][ T5418] x5 : ffff8000220d6fd8 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 75.545424][ T5418] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.546861][ T5418] Call trace: [ 75.547441][ T5418] btrfs_replace_file_extents+0xd18/0x1284 [ 75.548356][ T5418] __btrfs_prealloc_file_range+0x35c/0xb80 [ 75.549379][ T5418] btrfs_prealloc_file_range+0x60/0x7c [ 75.550365][ T5418] btrfs_fallocate+0xcb0/0x1720 [ 75.551197][ T5418] vfs_fallocate+0x4a4/0x5fc [ 75.552021][ T5418] __arm64_sys_fallocate+0xc4/0x114 [ 75.552905][ T5418] invoke_syscall+0x98/0x28c [ 75.553725][ T5418] el0_svc_common+0x13c/0x258 [ 75.554560][ T5418] do_el0_svc+0x5c/0x140 [ 75.555347][ T5418] el0_svc+0x78/0x1d0 [ 75.556070][ T5418] el0t_64_sync_handler+0xcc/0xe4 [ 75.556986][ T5418] el0t_64_sync+0x1a0/0x1a4 [ 75.557819][ T5418] irq event stamp: 79138 [ 75.558606][ T5418] hardirqs last enabled at (79137): [] __up_console_sem+0xb4/0xfc [ 75.560382][ T5418] hardirqs last disabled at (79138): [] el1_dbg+0x24/0x80 [ 75.561986][ T5418] softirqs last enabled at (79116): [] handle_softirqs+0xa70/0xc14 [ 75.563706][ T5418] softirqs last disabled at (79091): [] __irq_exit_rcu+0x240/0x434 [ 75.565301][ T5418] ---[ end trace 7725cedd7cb04572 ]--- [ 75.567908][ T5418] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 75.569643][ T5418] BTRFS info (device loop0): forced readonly [ 75.743809][ T5440] loop0: detected capacity change from 0 to 32768 [ 75.789701][ T5440] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.49 (5440)