Warning: Permanently added '10.128.1.88' (ED25519) to the list of known hosts. 1970/01/01 00:00:45 ignoring optional flag "type"="gce" 1970/01/01 00:00:45 parsed 1 programs 1970/01/01 00:00:45 executed programs: 0 [ 45.575272][ T4331] chnl_net:caif_netlink_parms(): no params data found [ 45.593091][ T4331] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.594349][ T4331] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.595886][ T4331] device bridge_slave_0 entered promiscuous mode [ 45.597810][ T4331] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.598924][ T4331] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.600427][ T4331] device bridge_slave_1 entered promiscuous mode [ 45.608633][ T4331] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 45.610997][ T4331] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 45.618408][ T4331] team0: Port device team_slave_0 added [ 45.620355][ T4331] team0: Port device team_slave_1 added [ 45.627253][ T4331] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 45.628302][ T4331] 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. [ 45.632108][ T4331] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 45.634753][ T4331] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 45.635873][ T4331] 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. [ 45.639990][ T4331] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 45.702849][ T4331] device hsr_slave_0 entered promiscuous mode [ 45.752010][ T4331] device hsr_slave_1 entered promiscuous mode [ 46.277413][ T4331] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 46.323038][ T4331] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 46.363615][ T4331] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 46.393741][ T4331] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 46.441061][ T4331] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.442285][ T4331] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.443613][ T4331] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.444825][ T4331] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.467017][ T4331] 8021q: adding VLAN 0 to HW filter on device bond0 [ 46.474275][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.476038][ T267] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.477589][ T267] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.479609][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 46.485229][ T4331] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.490153][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.491676][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.492897][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.494581][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.496216][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.497301][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.504467][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.506059][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 46.511676][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.514332][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.518379][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.521017][ T4331] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.568099][ T4331] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 46.570377][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 46.571620][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 46.578728][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 46.580297][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 46.591819][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 46.593526][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 46.595221][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 46.596750][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 46.599813][ T4331] device veth0_vlan entered promiscuous mode [ 46.604633][ T4331] device veth1_vlan entered promiscuous mode [ 46.611726][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 46.613354][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 46.614869][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 46.616398][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 46.619660][ T4331] device veth0_macvtap entered promiscuous mode [ 46.623244][ T4331] device veth1_macvtap entered promiscuous mode [ 46.629130][ T4331] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 46.630357][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 46.632160][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 46.633782][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 46.635353][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 46.638660][ T4331] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 46.639883][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 46.641595][ T267] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 46.646635][ T4331] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.648133][ T4331] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.649493][ T4331] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.650939][ T4331] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.796365][ T4452] loop0: detected capacity change from 0 to 32768 [ 46.810164][ T4452] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4452) [ 46.825470][ T4452] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 46.826901][ T4452] BTRFS info (device loop0): using free space tree [ 46.827868][ T4452] BTRFS info (device loop0): has skinny extents [ 46.890427][ T4452] BTRFS info (device loop0): enabling ssd optimizations [ 46.904652][ T4452] FAULT_INJECTION: forcing a failure. [ 46.904652][ T4452] name failslab, interval 1, probability 0, space 0, times 1 [ 46.913725][ T4452] CPU: 1 PID: 4452 Comm: syz-executor.0 Not tainted syzkaller #0 [ 46.914942][ T4452] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 46.916557][ T4452] Call trace: [ 46.917110][ T4452] dump_backtrace+0x0/0x458 [ 46.917869][ T4452] show_stack+0x2c/0x3c [ 46.918524][ T4452] __dump_stack+0x30/0x40 [ 46.919273][ T4452] dump_stack_lvl+0xf4/0x15c [ 46.919971][ T4452] dump_stack+0x1c/0x5c [ 46.920646][ T4452] should_fail+0x3bc/0x514 [ 46.921358][ T4452] __should_failslab+0xbc/0x10c [ 46.922132][ T4452] should_failslab+0x10/0x28 [ 46.922889][ T4452] slab_pre_alloc_hook+0x64/0xe8 [ 46.923717][ T4452] kmem_cache_alloc+0x94/0x3d4 [ 46.924484][ T4452] alloc_extent_map+0x28/0x128 [ 46.925334][ T4452] btrfs_drop_extent_cache+0x164/0xd90 [ 46.926246][ T4452] btrfs_drop_extents+0x2e8/0x2254 [ 46.927079][ T4452] btrfs_replace_file_extents+0x338/0x1238 [ 46.928056][ T4452] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 46.928991][ T4452] btrfs_prealloc_file_range+0x60/0x7c [ 46.929859][ T4452] btrfs_fallocate+0x1354/0x1638 [ 46.930677][ T4452] vfs_fallocate+0x4a4/0x5f4 [ 46.931424][ T4452] ioctl_preallocate+0x234/0x2dc [ 46.932195][ T4452] do_vfs_ioctl+0x1aa4/0x23f0 [ 46.932954][ T4452] __arm64_sys_ioctl+0xe4/0x1c8 [ 46.933768][ T4452] invoke_syscall+0x98/0x2b0 [ 46.934512][ T4452] el0_svc_common+0x138/0x258 [ 46.935331][ T4452] do_el0_svc+0x58/0x13c [ 46.936019][ T4452] el0_svc+0x78/0x1d0 [ 46.936648][ T4452] el0t_64_sync_handler+0xcc/0xe4 [ 46.937469][ T4452] el0t_64_sync+0x1a0/0x1a4 [ 47.159805][ T4525] loop0: detected capacity change from 0 to 32768 [ 47.167955][ T4525] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4525) [ 47.179635][ T4525] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 47.181286][ T4525] BTRFS info (device loop0): using free space tree [ 47.186627][ T4525] BTRFS info (device loop0): has skinny extents [ 47.246161][ T4525] BTRFS info (device loop0): enabling ssd optimizations [ 47.254700][ T4525] FAULT_INJECTION: forcing a failure. [ 47.254700][ T4525] name failslab, interval 1, probability 0, space 0, times 0 [ 47.260690][ T4525] CPU: 0 PID: 4525 Comm: syz-executor.0 Not tainted syzkaller #0 [ 47.261934][ T4525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 47.263548][ T4525] Call trace: [ 47.264064][ T4525] dump_backtrace+0x0/0x458 [ 47.264827][ T4525] show_stack+0x2c/0x3c [ 47.265484][ T4525] __dump_stack+0x30/0x40 [ 47.266175][ T4525] dump_stack_lvl+0xf4/0x15c [ 47.266957][ T4525] dump_stack+0x1c/0x5c [ 47.267703][ T4525] should_fail+0x3bc/0x514 [ 47.268474][ T4525] __should_failslab+0xbc/0x10c [ 47.269286][ T4525] should_failslab+0x10/0x28 [ 47.270053][ T4525] slab_pre_alloc_hook+0x64/0xe8 [ 47.270847][ T4525] kmem_cache_alloc+0x94/0x3d4 [ 47.271722][ T4525] btrfs_add_delayed_data_ref+0x160/0xd08 [ 47.272710][ T4525] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 47.273760][ T4525] btrfs_insert_replace_extent+0x840/0x9cc [ 47.274738][ T4525] btrfs_replace_file_extents+0x89c/0x1238 [ 47.275670][ T4525] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 47.276610][ T4525] btrfs_prealloc_file_range+0x60/0x7c [ 47.277505][ T4525] btrfs_fallocate+0x1354/0x1638 [ 47.278324][ T4525] vfs_fallocate+0x4a4/0x5f4 [ 47.279061][ T4525] ioctl_preallocate+0x234/0x2dc [ 47.279873][ T4525] do_vfs_ioctl+0x1aa4/0x23f0 [ 47.280607][ T4525] __arm64_sys_ioctl+0xe4/0x1c8 [ 47.281369][ T4525] invoke_syscall+0x98/0x2b0 [ 47.282108][ T4525] el0_svc_common+0x138/0x258 [ 47.282875][ T4525] do_el0_svc+0x58/0x13c [ 47.283559][ T4525] el0_svc+0x78/0x1d0 [ 47.284186][ T4525] el0t_64_sync_handler+0xcc/0xe4 [ 47.284960][ T4525] el0t_64_sync+0x1a0/0x1a4 [ 47.290909][ T4525] ------------[ cut here ]------------ [ 47.293400][ T4525] WARNING: CPU: 0 PID: 4525 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 47.294890][ T4525] Modules linked in: [ 47.295466][ T4525] CPU: 0 PID: 4525 Comm: syz-executor.0 Not tainted syzkaller #0 [ 47.296628][ T4525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 47.298243][ T4525] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.299508][ T4525] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 47.300583][ T4525] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 47.301595][ T4525] sp : ffff80001f5f71e0 [ 47.302279][ T4525] x29: ffff80001f5f7300 x28: dfff800000000000 x27: 0000000000000000 [ 47.303505][ T4525] x26: ffff0000d3d36700 x25: ffff80001f5f74e0 x24: ffff0000e2511d70 [ 47.304767][ T4525] x23: ffff700003ebee4c x22: 00000000fffffff4 x21: 1fffe0001bd48e21 [ 47.306013][ T4525] x20: ffff0000dea470b0 x19: ffff0000dea47108 x18: 0000000000000001 [ 47.307339][ T4525] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 47.308649][ T4525] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 47.309951][ T4525] x11: 0000000000000000 x10: 0000000000000000 x9 : a334b56f40bcfb00 [ 47.311300][ T4525] x8 : a334b56f40bcfb00 x7 : 0000000000000001 x6 : 0000000000000001 [ 47.312594][ T4525] x5 : ffff80001f5f6af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 47.313920][ T4525] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 47.315313][ T4525] Call trace: [ 47.315877][ T4525] btrfs_replace_file_extents+0xcc4/0x1238 [ 47.316833][ T4525] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 47.317753][ T4525] btrfs_prealloc_file_range+0x60/0x7c [ 47.318582][ T4525] btrfs_fallocate+0x1354/0x1638 [ 47.319316][ T4525] vfs_fallocate+0x4a4/0x5f4 [ 47.320028][ T4525] ioctl_preallocate+0x234/0x2dc [ 47.320862][ T4525] do_vfs_ioctl+0x1aa4/0x23f0 [ 47.321687][ T4525] __arm64_sys_ioctl+0xe4/0x1c8 [ 47.322595][ T4525] invoke_syscall+0x98/0x2b0 [ 47.323476][ T4525] el0_svc_common+0x138/0x258 [ 47.324209][ T4525] do_el0_svc+0x58/0x13c [ 47.324945][ T4525] el0_svc+0x78/0x1d0 [ 47.325615][ T4525] el0t_64_sync_handler+0xcc/0xe4 [ 47.326443][ T4525] el0t_64_sync+0x1a0/0x1a4 [ 47.327197][ T4525] irq event stamp: 79692 [ 47.327986][ T4525] hardirqs last enabled at (79691): [] __up_console_sem+0xb4/0xfc [ 47.329463][ T4525] hardirqs last disabled at (79692): [] el1_dbg+0x24/0x80 [ 47.330836][ T4525] softirqs last enabled at (79680): [] handle_softirqs+0xa40/0xbe4 [ 47.332335][ T4525] softirqs last disabled at (79613): [] __irq_exit_rcu+0x240/0x43c [ 47.333740][ T4525] ---[ end trace 5c6f179f1ab7733a ]--- [ 47.337927][ T4525] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 47.339756][ T4525] BTRFS info (device loop0): forced readonly [ 47.545524][ T4603] loop0: detected capacity change from 0 to 32768 [ 47.553873][ T4603] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4603) [ 47.564170][ T4603] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 47.565636][ T4603] BTRFS info (device loop0): using free space tree [ 47.566753][ T4603] BTRFS info (device loop0): has skinny extents [ 47.612465][ T4518] Bluetooth: hci0: command 0x0409 tx timeout [ 47.614617][ T4603] BTRFS info (device loop0): enabling ssd optimizations [ 47.618750][ T4603] FAULT_INJECTION: forcing a failure. [ 47.618750][ T4603] name failslab, interval 1, probability 0, space 0, times 0 [ 47.620691][ T4603] CPU: 1 PID: 4603 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 47.622142][ T4603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 47.623745][ T4603] Call trace: [ 47.624292][ T4603] dump_backtrace+0x0/0x458 [ 47.625057][ T4603] show_stack+0x2c/0x3c [ 47.625734][ T4603] __dump_stack+0x30/0x40 [ 47.626429][ T4603] dump_stack_lvl+0xf4/0x15c [ 47.627162][ T4603] dump_stack+0x1c/0x5c [ 47.627856][ T4603] should_fail+0x3bc/0x514 [ 47.628540][ T4603] __should_failslab+0xbc/0x10c [ 47.629362][ T4603] should_failslab+0x10/0x28 [ 47.630134][ T4603] slab_pre_alloc_hook+0x64/0xe8 [ 47.630870][ T4603] kmem_cache_alloc+0x94/0x3d4 [ 47.631655][ T4603] btrfs_add_delayed_data_ref+0x160/0xd08 [ 47.632514][ T4603] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 47.633505][ T4603] btrfs_insert_replace_extent+0x840/0x9cc [ 47.634466][ T4603] btrfs_replace_file_extents+0x89c/0x1238 [ 47.635485][ T4603] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 47.636431][ T4603] btrfs_prealloc_file_range+0x60/0x7c [ 47.637351][ T4603] btrfs_fallocate+0x1354/0x1638 [ 47.638147][ T4603] vfs_fallocate+0x4a4/0x5f4 [ 47.638842][ T4603] ioctl_preallocate+0x234/0x2dc [ 47.639632][ T4603] do_vfs_ioctl+0x1aa4/0x23f0 [ 47.640349][ T4603] __arm64_sys_ioctl+0xe4/0x1c8 [ 47.641091][ T4603] invoke_syscall+0x98/0x2b0 [ 47.641806][ T4603] el0_svc_common+0x138/0x258 [ 47.642543][ T4603] do_el0_svc+0x58/0x13c [ 47.643307][ T4603] el0_svc+0x78/0x1d0 [ 47.643926][ T4603] el0t_64_sync_handler+0xcc/0xe4 [ 47.644691][ T4603] el0t_64_sync+0x1a0/0x1a4 [ 47.648552][ T4603] ------------[ cut here ]------------ [ 47.649508][ T4603] WARNING: CPU: 1 PID: 4603 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 47.650997][ T4603] Modules linked in: [ 47.651612][ T4603] CPU: 1 PID: 4603 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 47.653060][ T4603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 47.654715][ T4603] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.655960][ T4603] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 47.656942][ T4603] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 47.657907][ T4603] sp : ffff80001fb471e0 [ 47.658544][ T4603] x29: ffff80001fb47300 x28: dfff800000000000 x27: 0000000000000000 [ 47.659784][ T4603] x26: ffff0000c82a6100 x25: ffff80001fb474e0 x24: ffff0000de809d70 [ 47.661123][ T4603] x23: ffff700003f68e4c x22: 00000000fffffff4 x21: 1fffe0001bd38679 [ 47.662546][ T4603] x20: ffff0000de9c3370 x19: ffff0000de9c33c8 x18: 0000000000000001 [ 47.663915][ T4603] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 47.665236][ T4603] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 47.666554][ T4603] x11: 0000000000000000 x10: 0000000000000000 x9 : 65294e8def479e00 [ 47.667857][ T4603] x8 : 65294e8def479e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 47.669195][ T4603] x5 : ffff80001fb46af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 47.670561][ T4603] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 47.671897][ T4603] Call trace: [ 47.672405][ T4603] btrfs_replace_file_extents+0xcc4/0x1238 [ 47.673267][ T4603] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 47.674159][ T4603] btrfs_prealloc_file_range+0x60/0x7c [ 47.674989][ T4603] btrfs_fallocate+0x1354/0x1638 [ 47.675728][ T4603] vfs_fallocate+0x4a4/0x5f4 [ 47.676407][ T4603] ioctl_preallocate+0x234/0x2dc [ 47.677167][ T4603] do_vfs_ioctl+0x1aa4/0x23f0 [ 47.677876][ T4603] __arm64_sys_ioctl+0xe4/0x1c8 [ 47.678612][ T4603] invoke_syscall+0x98/0x2b0 [ 47.679299][ T4603] el0_svc_common+0x138/0x258 [ 47.680022][ T4603] do_el0_svc+0x58/0x13c [ 47.680746][ T4603] el0_svc+0x78/0x1d0 [ 47.681384][ T4603] el0t_64_sync_handler+0xcc/0xe4 [ 47.682153][ T4603] el0t_64_sync+0x1a0/0x1a4 [ 47.682864][ T4603] irq event stamp: 79210 [ 47.683468][ T4603] hardirqs last enabled at (79209): [] __up_console_sem+0xb4/0xfc [ 47.685008][ T4603] hardirqs last disabled at (79210): [] el1_dbg+0x24/0x80 [ 47.686424][ T4603] softirqs last enabled at (79190): [] handle_softirqs+0xa40/0xbe4 [ 47.688000][ T4603] softirqs last disabled at (79119): [] __irq_exit_rcu+0x240/0x43c [ 47.689488][ T4603] ---[ end trace 5c6f179f1ab7733b ]--- [ 47.697605][ T4603] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 47.699199][ T4603] BTRFS info (device loop0): forced readonly [ 47.886189][ T4661] loop0: detected capacity change from 0 to 32768 [ 47.889092][ T4661] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4661) [ 47.894654][ T4661] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 47.896184][ T4661] BTRFS info (device loop0): using free space tree [ 47.897342][ T4661] BTRFS info (device loop0): has skinny extents [ 47.908864][ T4661] BTRFS info (device loop0): enabling ssd optimizations [ 47.914143][ T4661] FAULT_INJECTION: forcing a failure. [ 47.914143][ T4661] name failslab, interval 1, probability 0, space 0, times 0 [ 47.916249][ T4661] CPU: 1 PID: 4661 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 47.917652][ T4661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 47.919351][ T4661] Call trace: [ 47.919930][ T4661] dump_backtrace+0x0/0x458 [ 47.920715][ T4661] show_stack+0x2c/0x3c [ 47.921373][ T4661] __dump_stack+0x30/0x40 [ 47.922099][ T4661] dump_stack_lvl+0xf4/0x15c [ 47.922823][ T4661] dump_stack+0x1c/0x5c [ 47.923458][ T4661] should_fail+0x3bc/0x514 [ 47.924141][ T4661] __should_failslab+0xbc/0x10c [ 47.924900][ T4661] should_failslab+0x10/0x28 [ 47.925605][ T4661] slab_pre_alloc_hook+0x64/0xe8 [ 47.926387][ T4661] kmem_cache_alloc+0x94/0x3d4 [ 47.927158][ T4661] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 47.928019][ T4661] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 47.928975][ T4661] btrfs_insert_replace_extent+0x840/0x9cc [ 47.929856][ T4661] btrfs_replace_file_extents+0x89c/0x1238 [ 47.930863][ T4661] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 47.931783][ T4661] btrfs_prealloc_file_range+0x60/0x7c [ 47.932719][ T4661] btrfs_fallocate+0x1354/0x1638 [ 47.933519][ T4661] vfs_fallocate+0x4a4/0x5f4 [ 47.934239][ T4661] ioctl_preallocate+0x234/0x2dc [ 47.935077][ T4661] do_vfs_ioctl+0x1aa4/0x23f0 [ 47.935879][ T4661] __arm64_sys_ioctl+0xe4/0x1c8 [ 47.936712][ T4661] invoke_syscall+0x98/0x2b0 [ 47.937461][ T4661] el0_svc_common+0x138/0x258 [ 47.938220][ T4661] do_el0_svc+0x58/0x13c [ 47.938900][ T4661] el0_svc+0x78/0x1d0 [ 47.939506][ T4661] el0t_64_sync_handler+0xcc/0xe4 [ 47.940308][ T4661] el0t_64_sync+0x1a0/0x1a4 [ 47.944231][ T4661] ------------[ cut here ]------------ [ 47.945173][ T4661] WARNING: CPU: 1 PID: 4661 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 47.946828][ T4661] Modules linked in: [ 47.947504][ T4661] CPU: 1 PID: 4661 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 47.949045][ T4661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 47.950596][ T4661] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.951812][ T4661] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 47.952857][ T4661] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 47.953867][ T4661] sp : ffff80001b9b71e0 [ 47.954581][ T4661] x29: ffff80001b9b7300 x28: dfff800000000000 x27: 0000000000000000 [ 47.955982][ T4661] x26: ffff0000d8726200 x25: ffff80001b9b74e0 x24: ffff0000de80bae0 [ 47.957261][ T4661] x23: ffff700003736e4c x22: 00000000fffffff4 x21: 1fffe0001bd386a5 [ 47.958590][ T4661] x20: ffff0000de9c34d0 x19: ffff0000de9c3528 x18: 0000000000000001 [ 47.959934][ T4661] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 47.961317][ T4661] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 47.962626][ T4661] x11: 0000000000000000 x10: 0000000000000000 x9 : 0ed68fd4370fe000 [ 47.963937][ T4661] x8 : 0ed68fd4370fe000 x7 : 0000000000000001 x6 : 0000000000000001 [ 47.965171][ T4661] x5 : ffff80001b9b6af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 47.966492][ T4661] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 47.967767][ T4661] Call trace: [ 47.968313][ T4661] btrfs_replace_file_extents+0xcc4/0x1238 [ 47.969289][ T4661] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 47.970217][ T4661] btrfs_prealloc_file_range+0x60/0x7c [ 47.971092][ T4661] btrfs_fallocate+0x1354/0x1638 [ 47.971938][ T4661] vfs_fallocate+0x4a4/0x5f4 [ 47.972713][ T4661] ioctl_preallocate+0x234/0x2dc [ 47.973509][ T4661] do_vfs_ioctl+0x1aa4/0x23f0 [ 47.974240][ T4661] __arm64_sys_ioctl+0xe4/0x1c8 [ 47.975018][ T4661] invoke_syscall+0x98/0x2b0 [ 47.975767][ T4661] el0_svc_common+0x138/0x258 [ 47.976503][ T4661] do_el0_svc+0x58/0x13c [ 47.977169][ T4661] el0_svc+0x78/0x1d0 [ 47.977839][ T4661] el0t_64_sync_handler+0xcc/0xe4 [ 47.978662][ T4661] el0t_64_sync+0x1a0/0x1a4 [ 47.979415][ T4661] irq event stamp: 80236 [ 47.980130][ T4661] hardirqs last enabled at (80235): [] __up_console_sem+0xb4/0xfc [ 47.981749][ T4661] hardirqs last disabled at (80236): [] el1_dbg+0x24/0x80 [ 47.982954][ T4661] softirqs last enabled at (80212): [] handle_softirqs+0xa40/0xbe4 [ 47.984416][ T4661] softirqs last disabled at (80143): [] __irq_exit_rcu+0x240/0x43c [ 47.986044][ T4661] ---[ end trace 5c6f179f1ab7733c ]--- [ 47.989963][ T4661] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 47.991697][ T4661] BTRFS info (device loop0): forced readonly [ 48.197065][ T4712] loop0: detected capacity change from 0 to 32768 [ 48.200623][ T4712] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4712) [ 48.207496][ T4712] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 48.209058][ T4712] BTRFS info (device loop0): using free space tree [ 48.210217][ T4712] BTRFS info (device loop0): has skinny extents [ 48.222953][ T4712] BTRFS info (device loop0): enabling ssd optimizations [ 48.227451][ T4712] FAULT_INJECTION: forcing a failure. [ 48.227451][ T4712] name failslab, interval 1, probability 0, space 0, times 0 [ 48.229446][ T4712] CPU: 0 PID: 4712 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.230844][ T4712] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 48.232530][ T4712] Call trace: [ 48.233091][ T4712] dump_backtrace+0x0/0x458 [ 48.233841][ T4712] show_stack+0x2c/0x3c [ 48.234553][ T4712] __dump_stack+0x30/0x40 [ 48.235234][ T4712] dump_stack_lvl+0xf4/0x15c [ 48.235928][ T4712] dump_stack+0x1c/0x5c [ 48.236587][ T4712] should_fail+0x3bc/0x514 [ 48.237281][ T4712] __should_failslab+0xbc/0x10c [ 48.238036][ T4712] should_failslab+0x10/0x28 [ 48.238818][ T4712] slab_pre_alloc_hook+0x64/0xe8 [ 48.239525][ T4712] kmem_cache_alloc+0x94/0x3d4 [ 48.240280][ T4712] alloc_extent_map+0x28/0x128 [ 48.241037][ T4712] btrfs_drop_extent_cache+0x164/0xd90 [ 48.241879][ T4712] btrfs_drop_extents+0x2e8/0x2254 [ 48.242637][ T4712] btrfs_replace_file_extents+0x338/0x1238 [ 48.243568][ T4712] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 48.244446][ T4712] btrfs_prealloc_file_range+0x60/0x7c [ 48.245240][ T4712] btrfs_fallocate+0x1354/0x1638 [ 48.246030][ T4712] vfs_fallocate+0x4a4/0x5f4 [ 48.246817][ T4712] ioctl_preallocate+0x234/0x2dc [ 48.247655][ T4712] do_vfs_ioctl+0x1aa4/0x23f0 [ 48.248479][ T4712] __arm64_sys_ioctl+0xe4/0x1c8 [ 48.249537][ T4712] invoke_syscall+0x98/0x2b0 [ 48.250262][ T4712] el0_svc_common+0x138/0x258 [ 48.251031][ T4712] do_el0_svc+0x58/0x13c [ 48.251729][ T4712] el0_svc+0x78/0x1d0 [ 48.252352][ T4712] el0t_64_sync_handler+0xcc/0xe4 [ 48.253151][ T4712] el0t_64_sync+0x1a0/0x1a4 [ 48.511020][ T4768] loop0: detected capacity change from 0 to 32768 [ 48.519981][ T4768] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4768) [ 48.529668][ T4768] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 48.531729][ T4768] BTRFS info (device loop0): using free space tree [ 48.533876][ T4768] BTRFS info (device loop0): has skinny extents [ 48.593073][ T4768] BTRFS info (device loop0): enabling ssd optimizations [ 48.613499][ T4768] FAULT_INJECTION: forcing a failure. [ 48.613499][ T4768] name failslab, interval 1, probability 0, space 0, times 0 [ 48.615639][ T4768] CPU: 1 PID: 4768 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.617075][ T4768] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 48.618696][ T4768] Call trace: [ 48.619225][ T4768] dump_backtrace+0x0/0x458 [ 48.619904][ T4768] show_stack+0x2c/0x3c [ 48.620532][ T4768] __dump_stack+0x30/0x40 [ 48.621205][ T4768] dump_stack_lvl+0xf4/0x15c [ 48.621973][ T4768] dump_stack+0x1c/0x5c [ 48.622651][ T4768] should_fail+0x3bc/0x514 [ 48.623381][ T4768] __should_failslab+0xbc/0x10c [ 48.624139][ T4768] should_failslab+0x10/0x28 [ 48.624899][ T4768] slab_pre_alloc_hook+0x64/0xe8 [ 48.625724][ T4768] kmem_cache_alloc+0x94/0x3d4 [ 48.626473][ T4768] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 48.627345][ T4768] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 48.628304][ T4768] btrfs_insert_replace_extent+0x840/0x9cc [ 48.629176][ T4768] btrfs_replace_file_extents+0x89c/0x1238 [ 48.630109][ T4768] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 48.631105][ T4768] btrfs_prealloc_file_range+0x60/0x7c [ 48.631990][ T4768] btrfs_fallocate+0x1354/0x1638 [ 48.632790][ T4768] vfs_fallocate+0x4a4/0x5f4 [ 48.633557][ T4768] ioctl_preallocate+0x234/0x2dc [ 48.634387][ T4768] do_vfs_ioctl+0x1aa4/0x23f0 [ 48.635172][ T4768] __arm64_sys_ioctl+0xe4/0x1c8 [ 48.635957][ T4768] invoke_syscall+0x98/0x2b0 [ 48.636705][ T4768] el0_svc_common+0x138/0x258 [ 48.637435][ T4768] do_el0_svc+0x58/0x13c [ 48.638111][ T4768] el0_svc+0x78/0x1d0 [ 48.638734][ T4768] el0t_64_sync_handler+0xcc/0xe4 [ 48.639559][ T4768] el0t_64_sync+0x1a0/0x1a4 [ 48.642342][ T4768] ------------[ cut here ]------------ [ 48.643255][ T4768] WARNING: CPU: 1 PID: 4768 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 48.644679][ T4768] Modules linked in: [ 48.645321][ T4768] CPU: 1 PID: 4768 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.646810][ T4768] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 48.648526][ T4768] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.649738][ T4768] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 48.650674][ T4768] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 48.651652][ T4768] sp : ffff80001fbe71e0 [ 48.652317][ T4768] x29: ffff80001fbe7300 x28: dfff800000000000 x27: 0000000000000000 [ 48.653570][ T4768] x26: ffff0000d5583a00 x25: ffff80001fbe74e0 x24: ffff0000de80e220 [ 48.654815][ T4768] x23: ffff700003f7ce4c x22: 00000000fffffff4 x21: 1fffe0001bd386fd [ 48.656053][ T4768] x20: ffff0000de9c3790 x19: ffff0000de9c37e8 x18: 0000000000000001 [ 48.657265][ T4768] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 48.658546][ T4768] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 48.659756][ T4768] x11: 0000000000000000 x10: 0000000000000000 x9 : aea779e669b3e300 [ 48.660975][ T4768] x8 : aea779e669b3e300 x7 : 0000000000000001 x6 : 0000000000000001 [ 48.662232][ T4768] x5 : ffff80001fbe6af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 48.663533][ T4768] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 48.664862][ T4768] Call trace: [ 48.665367][ T4768] btrfs_replace_file_extents+0xcc4/0x1238 [ 48.666280][ T4768] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 48.667228][ T4768] btrfs_prealloc_file_range+0x60/0x7c [ 48.668132][ T4768] btrfs_fallocate+0x1354/0x1638 [ 48.668942][ T4768] vfs_fallocate+0x4a4/0x5f4 [ 48.669702][ T4768] ioctl_preallocate+0x234/0x2dc [ 48.670499][ T4768] do_vfs_ioctl+0x1aa4/0x23f0 [ 48.671270][ T4768] __arm64_sys_ioctl+0xe4/0x1c8 [ 48.672089][ T4768] invoke_syscall+0x98/0x2b0 [ 48.672819][ T4768] el0_svc_common+0x138/0x258 [ 48.673574][ T4768] do_el0_svc+0x58/0x13c [ 48.674286][ T4768] el0_svc+0x78/0x1d0 [ 48.674886][ T4768] el0t_64_sync_handler+0xcc/0xe4 [ 48.675645][ T4768] el0t_64_sync+0x1a0/0x1a4 [ 48.676396][ T4768] irq event stamp: 79188 [ 48.677072][ T4768] hardirqs last enabled at (79187): [] __up_console_sem+0xb4/0xfc [ 48.678532][ T4768] hardirqs last disabled at (79188): [] el1_dbg+0x24/0x80 [ 48.679850][ T4768] softirqs last enabled at (79166): [] handle_softirqs+0xa40/0xbe4 [ 48.681323][ T4768] softirqs last disabled at (79141): [] __irq_exit_rcu+0x240/0x43c [ 48.682874][ T4768] ---[ end trace 5c6f179f1ab7733d ]--- [ 48.685839][ T4768] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 48.687497][ T4768] BTRFS info (device loop0): forced readonly [ 48.886539][ T4816] loop0: detected capacity change from 0 to 32768 [ 48.889003][ T4816] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4816) [ 48.893338][ T4816] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 48.894901][ T4816] BTRFS info (device loop0): using free space tree [ 48.896068][ T4816] BTRFS info (device loop0): has skinny extents [ 48.904652][ T4816] BTRFS info (device loop0): enabling ssd optimizations [ 48.908714][ T4816] FAULT_INJECTION: forcing a failure. [ 48.908714][ T4816] name failslab, interval 1, probability 0, space 0, times 0 [ 48.910797][ T4816] CPU: 0 PID: 4816 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.912155][ T4816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 48.913650][ T4816] Call trace: [ 48.914130][ T4816] dump_backtrace+0x0/0x458 [ 48.914837][ T4816] show_stack+0x2c/0x3c [ 48.915490][ T4816] __dump_stack+0x30/0x40 [ 48.916229][ T4816] dump_stack_lvl+0xf4/0x15c [ 48.917002][ T4816] dump_stack+0x1c/0x5c [ 48.917742][ T4816] should_fail+0x3bc/0x514 [ 48.918489][ T4816] __should_failslab+0xbc/0x10c [ 48.919300][ T4816] should_failslab+0x10/0x28 [ 48.920102][ T4816] slab_pre_alloc_hook+0x64/0xe8 [ 48.920865][ T4816] kmem_cache_alloc+0x94/0x3d4 [ 48.921683][ T4816] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 48.922640][ T4816] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 48.923653][ T4816] btrfs_insert_replace_extent+0x840/0x9cc [ 48.924581][ T4816] btrfs_replace_file_extents+0x89c/0x1238 [ 48.925587][ T4816] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 48.926553][ T4816] btrfs_prealloc_file_range+0x60/0x7c [ 48.927495][ T4816] btrfs_fallocate+0x1354/0x1638 [ 48.928332][ T4816] vfs_fallocate+0x4a4/0x5f4 [ 48.929071][ T4816] ioctl_preallocate+0x234/0x2dc [ 48.929872][ T4816] do_vfs_ioctl+0x1aa4/0x23f0 [ 48.930657][ T4816] __arm64_sys_ioctl+0xe4/0x1c8 [ 48.931465][ T4816] invoke_syscall+0x98/0x2b0 [ 48.932202][ T4816] el0_svc_common+0x138/0x258 [ 48.932927][ T4816] do_el0_svc+0x58/0x13c [ 48.933620][ T4816] el0_svc+0x78/0x1d0 [ 48.934248][ T4816] el0t_64_sync_handler+0xcc/0xe4 [ 48.935037][ T4816] el0t_64_sync+0x1a0/0x1a4 [ 48.936308][ T4816] ------------[ cut here ]------------ [ 48.937244][ T4816] WARNING: CPU: 0 PID: 4816 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 48.938906][ T4816] Modules linked in: [ 48.939525][ T4816] CPU: 0 PID: 4816 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.941000][ T4816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 48.942634][ T4816] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.943958][ T4816] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 48.945013][ T4816] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 48.946051][ T4816] sp : ffff80001f2f71e0 [ 48.946718][ T4816] x29: ffff80001f2f7300 x28: dfff800000000000 x27: 0000000000000000 [ 48.948060][ T4816] x26: ffff0000c5ee3e00 x25: ffff80001f2f74e0 x24: ffff0000e2515850 [ 48.949388][ T4816] x23: ffff700003e5ee4c x22: 00000000fffffff4 x21: 1fffe0001bd48e79 [ 48.950703][ T4816] x20: ffff0000dea47370 x19: ffff0000dea473c8 x18: 0000000000000001 [ 48.951909][ T4816] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 48.953160][ T4816] x14: 0000000000000001 x13: 1ffff00003e5ed5c x12: 0000000000ff0100 [ 48.954392][ T4816] x11: 0000000000000000 x10: 0000000000000000 x9 : 29505c076af45200 [ 48.955707][ T4816] x8 : 29505c076af45200 x7 : 0000000000000001 x6 : 0000000000000001 [ 48.957031][ T4816] x5 : ffff80001f2f6af8 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 48.958262][ T4816] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 48.959581][ T4816] Call trace: [ 48.960133][ T4816] btrfs_replace_file_extents+0xcc4/0x1238 [ 48.961165][ T4816] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 48.962115][ T4816] btrfs_prealloc_file_range+0x60/0x7c [ 48.963039][ T4816] btrfs_fallocate+0x1354/0x1638 [ 48.963828][ T4816] vfs_fallocate+0x4a4/0x5f4 [ 48.964634][ T4816] ioctl_preallocate+0x234/0x2dc [ 48.965423][ T4816] do_vfs_ioctl+0x1aa4/0x23f0 [ 48.966163][ T4816] __arm64_sys_ioctl+0xe4/0x1c8 [ 48.966912][ T4816] invoke_syscall+0x98/0x2b0 [ 48.967622][ T4816] el0_svc_common+0x138/0x258 [ 48.968369][ T4816] do_el0_svc+0x58/0x13c [ 48.969054][ T4816] el0_svc+0x78/0x1d0 [ 48.969708][ T4816] el0t_64_sync_handler+0xcc/0xe4 [ 48.970505][ T4816] el0t_64_sync+0x1a0/0x1a4 [ 48.971205][ T4816] irq event stamp: 79378 [ 48.971824][ T4816] hardirqs last enabled at (79377): [] __up_console_sem+0xb4/0xfc [ 48.973408][ T4816] hardirqs last disabled at (79378): [] el1_dbg+0x24/0x80 [ 48.974870][ T4816] softirqs last enabled at (79356): [] handle_softirqs+0xa40/0xbe4 [ 48.976496][ T4816] softirqs last disabled at (79343): [] __irq_exit_rcu+0x240/0x43c [ 48.978067][ T4816] ---[ end trace 5c6f179f1ab7733e ]--- [ 48.979814][ T4816] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 48.981506][ T4816] BTRFS info (device loop0): forced readonly [ 49.184017][ T4837] loop0: detected capacity change from 0 to 32768 [ 49.186458][ T4837] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4837) [ 49.190511][ T4837] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 49.192481][ T4837] BTRFS info (device loop0): using free space tree [ 49.193469][ T4837] BTRFS info (device loop0): has skinny extents [ 49.204963][ T4837] BTRFS info (device loop0): enabling ssd optimizations [ 49.209490][ T4837] FAULT_INJECTION: forcing a failure. [ 49.209490][ T4837] name failslab, interval 1, probability 0, space 0, times 0 [ 49.211526][ T4837] CPU: 1 PID: 4837 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.213054][ T4837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 49.214705][ T4837] Call trace: [ 49.215266][ T4837] dump_backtrace+0x0/0x458 [ 49.216030][ T4837] show_stack+0x2c/0x3c [ 49.216681][ T4837] __dump_stack+0x30/0x40 [ 49.217437][ T4837] dump_stack_lvl+0xf4/0x15c [ 49.218202][ T4837] dump_stack+0x1c/0x5c [ 49.218900][ T4837] should_fail+0x3bc/0x514 [ 49.219591][ T4837] __should_failslab+0xbc/0x10c [ 49.220385][ T4837] should_failslab+0x10/0x28 [ 49.221158][ T4837] slab_pre_alloc_hook+0x64/0xe8 [ 49.222032][ T4837] kmem_cache_alloc+0x94/0x3d4 [ 49.222788][ T4837] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 49.223715][ T4837] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 49.224754][ T4837] btrfs_insert_replace_extent+0x840/0x9cc [ 49.225719][ T4837] btrfs_replace_file_extents+0x89c/0x1238 [ 49.226685][ T4837] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 49.227571][ T4837] btrfs_prealloc_file_range+0x60/0x7c [ 49.228431][ T4837] btrfs_fallocate+0x1354/0x1638 [ 49.229226][ T4837] vfs_fallocate+0x4a4/0x5f4 [ 49.229997][ T4837] ioctl_preallocate+0x234/0x2dc [ 49.230860][ T4837] do_vfs_ioctl+0x1aa4/0x23f0 [ 49.231611][ T4837] __arm64_sys_ioctl+0xe4/0x1c8 [ 49.232440][ T4837] invoke_syscall+0x98/0x2b0 [ 49.233205][ T4837] el0_svc_common+0x138/0x258 [ 49.233930][ T4837] do_el0_svc+0x58/0x13c [ 49.234625][ T4837] el0_svc+0x78/0x1d0 [ 49.235254][ T4837] el0t_64_sync_handler+0xcc/0xe4 [ 49.236044][ T4837] el0t_64_sync+0x1a0/0x1a4 [ 49.239107][ T4837] ------------[ cut here ]------------ [ 49.240029][ T4837] WARNING: CPU: 1 PID: 4837 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 49.241637][ T4837] Modules linked in: [ 49.242270][ T4837] CPU: 1 PID: 4837 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.243759][ T4837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 49.245353][ T4837] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.246614][ T4837] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 49.247624][ T4837] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 49.248622][ T4837] sp : ffff80001f2f71e0 [ 49.249293][ T4837] x29: ffff80001f2f7300 x28: dfff800000000000 x27: 0000000000000000 [ 49.250636][ T4837] x26: ffff0000d64fb500 x25: ffff80001f2f74e0 x24: ffff0000deb68000 [ 49.251922][ T4837] x23: ffff700003e5ee4c x22: 00000000fffffff4 x21: 1fffe0001bd38729 [ 49.253221][ T4837] x20: ffff0000de9c38f0 x19: ffff0000de9c3948 x18: 0000000000000001 [ 49.254435][ T4837] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 49.255733][ T4837] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 49.257049][ T4837] x11: 0000000000000000 x10: 0000000000000000 x9 : 5cf09b1a22d2cb00 [ 49.258345][ T4837] x8 : 5cf09b1a22d2cb00 x7 : 0000000000000001 x6 : 0000000000000001 [ 49.259742][ T4837] x5 : ffff80001f2f6af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 49.261055][ T4837] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 49.262348][ T4837] Call trace: [ 49.262885][ T4837] btrfs_replace_file_extents+0xcc4/0x1238 [ 49.263833][ T4837] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 49.264774][ T4837] btrfs_prealloc_file_range+0x60/0x7c [ 49.265658][ T4837] btrfs_fallocate+0x1354/0x1638 [ 49.266476][ T4837] vfs_fallocate+0x4a4/0x5f4 [ 49.267271][ T4837] ioctl_preallocate+0x234/0x2dc [ 49.268101][ T4837] do_vfs_ioctl+0x1aa4/0x23f0 [ 49.268891][ T4837] __arm64_sys_ioctl+0xe4/0x1c8 [ 49.269675][ T4837] invoke_syscall+0x98/0x2b0 [ 49.270413][ T4837] el0_svc_common+0x138/0x258 [ 49.271216][ T4837] do_el0_svc+0x58/0x13c [ 49.271897][ T4837] el0_svc+0x78/0x1d0 [ 49.272560][ T4837] el0t_64_sync_handler+0xcc/0xe4 [ 49.273448][ T4837] el0t_64_sync+0x1a0/0x1a4 [ 49.274227][ T4837] irq event stamp: 79130 [ 49.274922][ T4837] hardirqs last enabled at (79129): [] __up_console_sem+0xb4/0xfc [ 49.276443][ T4837] hardirqs last disabled at (79130): [] el1_dbg+0x24/0x80 [ 49.277875][ T4837] softirqs last enabled at (79108): [] handle_softirqs+0xa40/0xbe4 [ 49.279334][ T4837] softirqs last disabled at (79077): [] __irq_exit_rcu+0x240/0x43c [ 49.280827][ T4837] ---[ end trace 5c6f179f1ab7733f ]--- [ 49.282538][ T4837] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 49.284145][ T4837] BTRFS info (device loop0): forced readonly [ 49.459709][ T4859] loop0: detected capacity change from 0 to 32768 [ 49.462567][ T4859] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4859) [ 49.466829][ T4859] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 49.468369][ T4859] BTRFS info (device loop0): using free space tree [ 49.469372][ T4859] BTRFS info (device loop0): has skinny extents [ 49.480729][ T4859] BTRFS info (device loop0): enabling ssd optimizations [ 49.484911][ T4859] FAULT_INJECTION: forcing a failure. [ 49.484911][ T4859] name failslab, interval 1, probability 0, space 0, times 0 [ 49.487114][ T4859] CPU: 1 PID: 4859 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.488546][ T4859] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 49.490129][ T4859] Call trace: [ 49.490609][ T4859] dump_backtrace+0x0/0x458 [ 49.491319][ T4859] show_stack+0x2c/0x3c [ 49.491978][ T4859] __dump_stack+0x30/0x40 [ 49.492670][ T4859] dump_stack_lvl+0xf4/0x15c [ 49.493399][ T4859] dump_stack+0x1c/0x5c [ 49.494041][ T4859] should_fail+0x3bc/0x514 [ 49.494740][ T4859] __should_failslab+0xbc/0x10c [ 49.495517][ T4859] should_failslab+0x10/0x28 [ 49.496228][ T4859] slab_pre_alloc_hook+0x64/0xe8 [ 49.497063][ T4859] kmem_cache_alloc+0x94/0x3d4 [ 49.497866][ T4859] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 49.498813][ T4859] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 49.499782][ T4859] btrfs_insert_replace_extent+0x840/0x9cc [ 49.500709][ T4859] btrfs_replace_file_extents+0x89c/0x1238 [ 49.501633][ T4859] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 49.502539][ T4859] btrfs_prealloc_file_range+0x60/0x7c [ 49.503391][ T4859] btrfs_fallocate+0x1354/0x1638 [ 49.504128][ T4859] vfs_fallocate+0x4a4/0x5f4 [ 49.504829][ T4859] ioctl_preallocate+0x234/0x2dc [ 49.505560][ T4859] do_vfs_ioctl+0x1aa4/0x23f0 [ 49.506261][ T4859] __arm64_sys_ioctl+0xe4/0x1c8 [ 49.507014][ T4859] invoke_syscall+0x98/0x2b0 [ 49.507739][ T4859] el0_svc_common+0x138/0x258 [ 49.508465][ T4859] do_el0_svc+0x58/0x13c [ 49.509110][ T4859] el0_svc+0x78/0x1d0 [ 49.509752][ T4859] el0t_64_sync_handler+0xcc/0xe4 [ 49.510473][ T4859] el0t_64_sync+0x1a0/0x1a4 [ 49.511887][ T4859] ------------[ cut here ]------------ [ 49.513476][ T4859] WARNING: CPU: 1 PID: 4859 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 49.515109][ T4859] Modules linked in: [ 49.515769][ T4859] CPU: 1 PID: 4859 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.517289][ T4859] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 49.518800][ T4859] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.520032][ T4859] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 49.521021][ T4859] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 49.521980][ T4859] sp : ffff80001fcd71e0 [ 49.522622][ T4859] x29: ffff80001fcd7300 x28: dfff800000000000 x27: 0000000000000000 [ 49.523821][ T4859] x26: ffff0000c7a3cd00 x25: ffff80001fcd74e0 x24: ffff0000deb69d70 [ 49.525041][ T4859] x23: ffff700003f9ae4c x22: 00000000fffffff4 x21: 1fffe0001bd38755 [ 49.526323][ T4859] x20: ffff0000de9c3a50 x19: ffff0000de9c3aa8 x18: 0000000000000001 [ 49.527626][ T4859] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 49.528843][ T4859] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 49.530023][ T4859] x11: 0000000000000000 x10: 0000000000000000 x9 : 3d0c2740db559100 [ 49.531247][ T4859] x8 : 3d0c2740db559100 x7 : 0000000000000001 x6 : 0000000000000001 [ 49.532483][ T4859] x5 : ffff80001fcd6af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 49.533716][ T4859] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 49.534950][ T4859] Call trace: [ 49.535464][ T4859] btrfs_replace_file_extents+0xcc4/0x1238 [ 49.536349][ T4859] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 49.537337][ T4859] btrfs_prealloc_file_range+0x60/0x7c [ 49.538190][ T4859] btrfs_fallocate+0x1354/0x1638 [ 49.538969][ T4859] vfs_fallocate+0x4a4/0x5f4 [ 49.539704][ T4859] ioctl_preallocate+0x234/0x2dc [ 49.540512][ T4859] do_vfs_ioctl+0x1aa4/0x23f0 [ 49.541277][ T4859] __arm64_sys_ioctl+0xe4/0x1c8 [ 49.542073][ T4859] invoke_syscall+0x98/0x2b0 [ 49.542809][ T4859] el0_svc_common+0x138/0x258 [ 49.543577][ T4859] do_el0_svc+0x58/0x13c [ 49.544273][ T4859] el0_svc+0x78/0x1d0 [ 49.544930][ T4859] el0t_64_sync_handler+0xcc/0xe4 [ 49.545709][ T4859] el0t_64_sync+0x1a0/0x1a4 [ 49.546445][ T4859] irq event stamp: 78600 [ 49.547118][ T4859] hardirqs last enabled at (78599): [] __up_console_sem+0xb4/0xfc [ 49.548697][ T4859] hardirqs last disabled at (78600): [] el1_dbg+0x24/0x80 [ 49.550129][ T4859] softirqs last enabled at (78574): [] handle_softirqs+0xa40/0xbe4 [ 49.551751][ T4859] softirqs last disabled at (78521): [] __irq_exit_rcu+0x240/0x43c [ 49.553336][ T4859] ---[ end trace 5c6f179f1ab77340 ]--- [ 49.555190][ T4859] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 49.556902][ T4859] BTRFS info (device loop0): forced readonly [ 49.692261][ T25] Bluetooth: hci0: command 0x041b tx timeout [ 49.752250][ T4880] loop0: detected capacity change from 0 to 32768 [ 49.754693][ T4880] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4880) [ 49.758154][ T4880] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 49.759615][ T4880] BTRFS info (device loop0): using free space tree [ 49.760562][ T4880] BTRFS info (device loop0): has skinny extents [ 49.776001][ T4880] BTRFS info (device loop0): enabling ssd optimizations [ 49.779844][ T4880] FAULT_INJECTION: forcing a failure. [ 49.779844][ T4880] name failslab, interval 1, probability 0, space 0, times 0 [ 49.782238][ T4880] CPU: 0 PID: 4880 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.783737][ T4880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 49.785363][ T4880] Call trace: [ 49.785843][ T4880] dump_backtrace+0x0/0x458 [ 49.786531][ T4880] show_stack+0x2c/0x3c [ 49.787139][ T4880] __dump_stack+0x30/0x40 [ 49.787811][ T4880] dump_stack_lvl+0xf4/0x15c [ 49.788498][ T4880] dump_stack+0x1c/0x5c [ 49.789207][ T4880] should_fail+0x3bc/0x514 [ 49.789893][ T4880] __should_failslab+0xbc/0x10c [ 49.790614][ T4880] should_failslab+0x10/0x28 [ 49.791311][ T4880] slab_pre_alloc_hook+0x64/0xe8 [ 49.792106][ T4880] kmem_cache_alloc+0x94/0x3d4 [ 49.792826][ T4880] alloc_extent_map+0x28/0x128 [ 49.793557][ T4880] btrfs_drop_extent_cache+0x164/0xd90 [ 49.794382][ T4880] btrfs_drop_extents+0x2e8/0x2254 [ 49.795220][ T4880] btrfs_replace_file_extents+0x338/0x1238 [ 49.796221][ T4880] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 49.797175][ T4880] btrfs_prealloc_file_range+0x60/0x7c [ 49.798056][ T4880] btrfs_fallocate+0x1354/0x1638 [ 49.798831][ T4880] vfs_fallocate+0x4a4/0x5f4 [ 49.799566][ T4880] ioctl_preallocate+0x234/0x2dc [ 49.800379][ T4880] do_vfs_ioctl+0x1aa4/0x23f0 [ 49.801161][ T4880] __arm64_sys_ioctl+0xe4/0x1c8 [ 49.801980][ T4880] invoke_syscall+0x98/0x2b0 [ 49.802743][ T4880] el0_svc_common+0x138/0x258 [ 49.803552][ T4880] do_el0_svc+0x58/0x13c [ 49.804361][ T4880] el0_svc+0x78/0x1d0 [ 49.804991][ T4880] el0t_64_sync_handler+0xcc/0xe4 [ 49.805796][ T4880] el0t_64_sync+0x1a0/0x1a4 [ 49.995289][ T4901] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4901) [ 49.999016][ T4901] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 50.000590][ T4901] BTRFS info (device loop0): using free space tree [ 50.001584][ T4901] BTRFS info (device loop0): has skinny extents [ 50.009854][ T4901] BTRFS info (device loop0): enabling ssd optimizations [ 50.013551][ T4901] FAULT_INJECTION: forcing a failure. [ 50.013551][ T4901] name failslab, interval 1, probability 0, space 0, times 0 [ 50.015702][ T4901] CPU: 1 PID: 4901 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.017256][ T4901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.018782][ T4901] Call trace: [ 50.019272][ T4901] dump_backtrace+0x0/0x458 [ 50.019997][ T4901] show_stack+0x2c/0x3c [ 50.020645][ T4901] __dump_stack+0x30/0x40 [ 50.021358][ T4901] dump_stack_lvl+0xf4/0x15c [ 50.022134][ T4901] dump_stack+0x1c/0x5c [ 50.022814][ T4901] should_fail+0x3bc/0x514 [ 50.023490][ T4901] __should_failslab+0xbc/0x10c [ 50.024293][ T4901] should_failslab+0x10/0x28 [ 50.024999][ T4901] slab_pre_alloc_hook+0x64/0xe8 [ 50.025741][ T4901] kmem_cache_alloc+0x94/0x3d4 [ 50.026446][ T4901] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 50.027461][ T4901] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 50.028458][ T4901] btrfs_insert_replace_extent+0x840/0x9cc [ 50.029442][ T4901] btrfs_replace_file_extents+0x89c/0x1238 [ 50.030399][ T4901] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 50.031331][ T4901] btrfs_prealloc_file_range+0x60/0x7c [ 50.032176][ T4901] btrfs_fallocate+0x1354/0x1638 [ 50.032951][ T4901] vfs_fallocate+0x4a4/0x5f4 [ 50.033659][ T4901] ioctl_preallocate+0x234/0x2dc [ 50.034407][ T4901] do_vfs_ioctl+0x1aa4/0x23f0 [ 50.035152][ T4901] __arm64_sys_ioctl+0xe4/0x1c8 [ 50.035919][ T4901] invoke_syscall+0x98/0x2b0 [ 50.036635][ T4901] el0_svc_common+0x138/0x258 [ 50.037376][ T4901] do_el0_svc+0x58/0x13c [ 50.038041][ T4901] el0_svc+0x78/0x1d0 [ 50.038686][ T4901] el0t_64_sync_handler+0xcc/0xe4 [ 50.039505][ T4901] el0t_64_sync+0x1a0/0x1a4 [ 50.041005][ T4901] ------------[ cut here ]------------ [ 50.041991][ T4901] WARNING: CPU: 1 PID: 4901 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 50.043568][ T4901] Modules linked in: [ 50.044188][ T4901] CPU: 1 PID: 4901 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.045721][ T4901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.047229][ T4901] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.048420][ T4901] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 50.049294][ T4901] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 50.050241][ T4901] sp : ffff8000201171e0 [ 50.050938][ T4901] x29: ffff800020117300 x28: dfff800000000000 x27: 0000000000000000 [ 50.052157][ T4901] x26: ffff0000cbb72c00 x25: ffff8000201174e0 x24: ffff0000deb6bae0 [ 50.053399][ T4901] x23: ffff700004022e4c x22: 00000000fffffff4 x21: 1fffe0001bd38781 [ 50.054620][ T4901] x20: ffff0000de9c3bb0 x19: ffff0000de9c3c08 x18: 0000000000000001 [ 50.055761][ T4901] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 50.056979][ T4901] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 50.058317][ T4901] x11: 0000000000000000 x10: 0000000000000000 x9 : b47e0ec665895600 [ 50.059607][ T4901] x8 : b47e0ec665895600 x7 : 0000000000000001 x6 : 0000000000000001 [ 50.060991][ T4901] x5 : ffff800020116af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 50.062290][ T4901] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 50.063613][ T4901] Call trace: [ 50.064087][ T4901] btrfs_replace_file_extents+0xcc4/0x1238 [ 50.064971][ T4901] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 50.065975][ T4901] btrfs_prealloc_file_range+0x60/0x7c [ 50.066876][ T4901] btrfs_fallocate+0x1354/0x1638 [ 50.067652][ T4901] vfs_fallocate+0x4a4/0x5f4 [ 50.068394][ T4901] ioctl_preallocate+0x234/0x2dc [ 50.069240][ T4901] do_vfs_ioctl+0x1aa4/0x23f0 [ 50.069971][ T4901] __arm64_sys_ioctl+0xe4/0x1c8 [ 50.070747][ T4901] invoke_syscall+0x98/0x2b0 [ 50.071444][ T4901] el0_svc_common+0x138/0x258 [ 50.072365][ T4901] do_el0_svc+0x58/0x13c [ 50.073052][ T4901] el0_svc+0x78/0x1d0 [ 50.073711][ T4901] el0t_64_sync_handler+0xcc/0xe4 [ 50.074489][ T4901] el0t_64_sync+0x1a0/0x1a4 [ 50.075210][ T4901] irq event stamp: 79478 [ 50.075850][ T4901] hardirqs last enabled at (79477): [] __up_console_sem+0xb4/0xfc [ 50.077255][ T4901] hardirqs last disabled at (79478): [] el1_dbg+0x24/0x80 [ 50.078680][ T4901] softirqs last enabled at (79468): [] handle_softirqs+0xa40/0xbe4 [ 50.080171][ T4901] softirqs last disabled at (79453): [] __irq_exit_rcu+0x240/0x43c [ 50.081618][ T4901] ---[ end trace 5c6f179f1ab77341 ]--- [ 50.083334][ T4901] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 50.084856][ T4901] BTRFS info (device loop0): forced readonly [ 50.267047][ T4922] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4922) [ 50.270274][ T4922] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 50.272480][ T4922] BTRFS info (device loop0): using free space tree [ 50.273457][ T4922] BTRFS info (device loop0): has skinny extents [ 50.281087][ T4922] BTRFS info (device loop0): enabling ssd optimizations [ 50.284795][ T4922] FAULT_INJECTION: forcing a failure. [ 50.284795][ T4922] name failslab, interval 1, probability 0, space 0, times 0 [ 50.286762][ T4922] CPU: 1 PID: 4922 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.288314][ T4922] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.289779][ T4922] Call trace: [ 50.290264][ T4922] dump_backtrace+0x0/0x458 [ 50.290954][ T4922] show_stack+0x2c/0x3c [ 50.291615][ T4922] __dump_stack+0x30/0x40 [ 50.292331][ T4922] dump_stack_lvl+0xf4/0x15c [ 50.293048][ T4922] dump_stack+0x1c/0x5c [ 50.293695][ T4922] should_fail+0x3bc/0x514 [ 50.294454][ T4922] __should_failslab+0xbc/0x10c [ 50.295264][ T4922] should_failslab+0x10/0x28 [ 50.295981][ T4922] slab_pre_alloc_hook+0x64/0xe8 [ 50.296735][ T4922] kmem_cache_alloc+0x94/0x3d4 [ 50.297478][ T4922] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 50.298357][ T4922] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 50.299250][ T4922] btrfs_insert_replace_extent+0x840/0x9cc [ 50.300103][ T4922] btrfs_replace_file_extents+0x89c/0x1238 [ 50.300943][ T4922] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 50.301760][ T4922] btrfs_prealloc_file_range+0x60/0x7c [ 50.302626][ T4922] btrfs_fallocate+0x1354/0x1638 [ 50.303377][ T4922] vfs_fallocate+0x4a4/0x5f4 [ 50.304111][ T4922] ioctl_preallocate+0x234/0x2dc [ 50.304814][ T4922] do_vfs_ioctl+0x1aa4/0x23f0 [ 50.305471][ T4922] __arm64_sys_ioctl+0xe4/0x1c8 [ 50.306154][ T4922] invoke_syscall+0x98/0x2b0 [ 50.306855][ T4922] el0_svc_common+0x138/0x258 [ 50.307580][ T4922] do_el0_svc+0x58/0x13c [ 50.308216][ T4922] el0_svc+0x78/0x1d0 [ 50.308831][ T4922] el0t_64_sync_handler+0xcc/0xe4 [ 50.309631][ T4922] el0t_64_sync+0x1a0/0x1a4 [ 50.311697][ T4922] ------------[ cut here ]------------ [ 50.312764][ T4922] WARNING: CPU: 1 PID: 4922 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 50.314302][ T4922] Modules linked in: [ 50.314950][ T4922] CPU: 1 PID: 4922 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.316330][ T4922] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.317913][ T4922] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.319153][ T4922] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 50.320096][ T4922] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 50.321075][ T4922] sp : ffff8000202571e0 [ 50.321729][ T4922] x29: ffff800020257300 x28: dfff800000000000 x27: 0000000000000000 [ 50.322970][ T4922] x26: ffff0000d7ad8600 x25: ffff8000202574e0 x24: ffff0000deb6d850 [ 50.324186][ T4922] x23: ffff70000404ae4c x22: 00000000fffffff4 x21: 1fffe0001bd387ad [ 50.325466][ T4922] x20: ffff0000de9c3d10 x19: ffff0000de9c3d68 x18: 0000000000000001 [ 50.326689][ T4922] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 50.327898][ T4922] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 50.329186][ T4922] x11: 0000000000000000 x10: 0000000000000000 x9 : 70bc23639abf9d00 [ 50.330365][ T4922] x8 : 70bc23639abf9d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 50.331653][ T4922] x5 : ffff800020256af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 50.332824][ T4922] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 50.334081][ T4922] Call trace: [ 50.334605][ T4922] btrfs_replace_file_extents+0xcc4/0x1238 [ 50.335508][ T4922] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 50.336382][ T4922] btrfs_prealloc_file_range+0x60/0x7c [ 50.337240][ T4922] btrfs_fallocate+0x1354/0x1638 [ 50.337974][ T4922] vfs_fallocate+0x4a4/0x5f4 [ 50.338682][ T4922] ioctl_preallocate+0x234/0x2dc [ 50.339412][ T4922] do_vfs_ioctl+0x1aa4/0x23f0 [ 50.340188][ T4922] __arm64_sys_ioctl+0xe4/0x1c8 [ 50.340999][ T4922] invoke_syscall+0x98/0x2b0 [ 50.341777][ T4922] el0_svc_common+0x138/0x258 [ 50.342570][ T4922] do_el0_svc+0x58/0x13c [ 50.343239][ T4922] el0_svc+0x78/0x1d0 [ 50.343932][ T4922] el0t_64_sync_handler+0xcc/0xe4 [ 50.344766][ T4922] el0t_64_sync+0x1a0/0x1a4 [ 50.345487][ T4922] irq event stamp: 79756 [ 50.346169][ T4922] hardirqs last enabled at (79755): [] __up_console_sem+0xb4/0xfc [ 50.347761][ T4922] hardirqs last disabled at (79756): [] el1_dbg+0x24/0x80 [ 50.349161][ T4922] softirqs last enabled at (79746): [] handle_softirqs+0xa40/0xbe4 [ 50.350727][ T4922] softirqs last disabled at (79729): [] __irq_exit_rcu+0x240/0x43c [ 50.352287][ T4922] ---[ end trace 5c6f179f1ab77342 ]--- [ 50.353986][ T4922] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 50.355501][ T4922] BTRFS info (device loop0): forced readonly [ 50.535493][ T4943] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4943) [ 50.539736][ T4943] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 50.541383][ T4943] BTRFS info (device loop0): using free space tree [ 50.542830][ T4943] BTRFS info (device loop0): has skinny extents [ 50.559222][ T4943] BTRFS info (device loop0): enabling ssd optimizations [ 50.563564][ T4943] FAULT_INJECTION: forcing a failure. [ 50.563564][ T4943] name failslab, interval 1, probability 0, space 0, times 0 [ 50.565764][ T4943] CPU: 0 PID: 4943 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.567249][ T4943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.568978][ T4943] Call trace: [ 50.569563][ T4943] dump_backtrace+0x0/0x458 [ 50.570306][ T4943] show_stack+0x2c/0x3c [ 50.570977][ T4943] __dump_stack+0x30/0x40 [ 50.571661][ T4943] dump_stack_lvl+0xf4/0x15c [ 50.572401][ T4943] dump_stack+0x1c/0x5c [ 50.573085][ T4943] should_fail+0x3bc/0x514 [ 50.573801][ T4943] __should_failslab+0xbc/0x10c [ 50.574575][ T4943] should_failslab+0x10/0x28 [ 50.575276][ T4943] slab_pre_alloc_hook+0x64/0xe8 [ 50.576039][ T4943] kmem_cache_alloc+0x94/0x3d4 [ 50.576732][ T4943] btrfs_add_delayed_data_ref+0x160/0xd08 [ 50.577555][ T4943] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 50.578517][ T4943] btrfs_insert_replace_extent+0x840/0x9cc [ 50.579478][ T4943] btrfs_replace_file_extents+0x89c/0x1238 [ 50.580441][ T4943] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 50.581408][ T4943] btrfs_prealloc_file_range+0x60/0x7c [ 50.582265][ T4943] btrfs_fallocate+0x1354/0x1638 [ 50.583104][ T4943] vfs_fallocate+0x4a4/0x5f4 [ 50.583850][ T4943] ioctl_preallocate+0x234/0x2dc [ 50.584643][ T4943] do_vfs_ioctl+0x1aa4/0x23f0 [ 50.585471][ T4943] __arm64_sys_ioctl+0xe4/0x1c8 [ 50.586290][ T4943] invoke_syscall+0x98/0x2b0 [ 50.587037][ T4943] el0_svc_common+0x138/0x258 [ 50.587868][ T4943] do_el0_svc+0x58/0x13c [ 50.588595][ T4943] el0_svc+0x78/0x1d0 [ 50.589275][ T4943] el0t_64_sync_handler+0xcc/0xe4 [ 50.590109][ T4943] el0t_64_sync+0x1a0/0x1a4 [ 50.592056][ T4943] ------------[ cut here ]------------ [ 50.593129][ T4943] WARNING: CPU: 1 PID: 4943 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 50.594742][ T4943] Modules linked in: [ 50.595351][ T4943] CPU: 1 PID: 4943 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.596883][ T4943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.598497][ T4943] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.599764][ T4943] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 50.600749][ T4943] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 50.601791][ T4943] sp : ffff80001fcb71e0 [ 50.602477][ T4943] x29: ffff80001fcb7300 x28: dfff800000000000 x27: 0000000000000000 [ 50.603815][ T4943] x26: ffff0000c272e900 x25: ffff80001fcb74e0 x24: ffff0000e25293a0 [ 50.605029][ T4943] x23: ffff700003f96e4c x22: 00000000fffffff4 x21: 1fffe0001bd48efd [ 50.606308][ T4943] x20: ffff0000dea47790 x19: ffff0000dea477e8 x18: 0000000000000001 [ 50.607504][ T4943] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 50.608829][ T4943] x14: 0000000000000001 x13: 1ffff00003f96d5c x12: 0000000000ff0100 [ 50.610125][ T4943] x11: 0000000000000000 x10: 0000000000000000 x9 : bcc37ca1c0f23e00 [ 50.611519][ T4943] x8 : bcc37ca1c0f23e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 50.612798][ T4943] x5 : ffff80001fcb6af8 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 50.614202][ T4943] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 50.615398][ T4943] Call trace: [ 50.615899][ T4943] btrfs_replace_file_extents+0xcc4/0x1238 [ 50.616849][ T4943] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 50.617712][ T4943] btrfs_prealloc_file_range+0x60/0x7c [ 50.618520][ T4943] btrfs_fallocate+0x1354/0x1638 [ 50.619329][ T4943] vfs_fallocate+0x4a4/0x5f4 [ 50.620082][ T4943] ioctl_preallocate+0x234/0x2dc [ 50.620853][ T4943] do_vfs_ioctl+0x1aa4/0x23f0 [ 50.621548][ T4943] __arm64_sys_ioctl+0xe4/0x1c8 [ 50.622275][ T4943] invoke_syscall+0x98/0x2b0 [ 50.622960][ T4943] el0_svc_common+0x138/0x258 [ 50.623736][ T4943] do_el0_svc+0x58/0x13c [ 50.624382][ T4943] el0_svc+0x78/0x1d0 [ 50.624968][ T4943] el0t_64_sync_handler+0xcc/0xe4 [ 50.625834][ T4943] el0t_64_sync+0x1a0/0x1a4 [ 50.626608][ T4943] irq event stamp: 78876 [ 50.627371][ T4943] hardirqs last enabled at (78875): [] __up_console_sem+0xb4/0xfc [ 50.628952][ T4943] hardirqs last disabled at (78876): [] el1_dbg+0x24/0x80 [ 50.630445][ T4943] softirqs last enabled at (78856): [] handle_softirqs+0xa40/0xbe4 [ 50.631968][ T4943] softirqs last disabled at (78839): [] __irq_exit_rcu+0x240/0x43c 1970/01/01 00:00:50 executed programs: 13 [ 50.633403][ T4943] ---[ end trace 5c6f179f1ab77343 ]--- [ 50.634807][ T4943] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 50.636364][ T4943] BTRFS info (device loop0): forced readonly [ 50.832775][ T4964] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4964) [ 50.837644][ T4964] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 50.839141][ T4964] BTRFS info (device loop0): using free space tree [ 50.840162][ T4964] BTRFS info (device loop0): has skinny extents [ 50.848320][ T4964] BTRFS info (device loop0): enabling ssd optimizations [ 50.852990][ T4964] FAULT_INJECTION: forcing a failure. [ 50.852990][ T4964] name failslab, interval 1, probability 0, space 0, times 0 [ 50.855014][ T4964] CPU: 1 PID: 4964 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.856336][ T4964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.857801][ T4964] Call trace: [ 50.858245][ T4964] dump_backtrace+0x0/0x458 [ 50.859023][ T4964] show_stack+0x2c/0x3c [ 50.859678][ T4964] __dump_stack+0x30/0x40 [ 50.860361][ T4964] dump_stack_lvl+0xf4/0x15c [ 50.861032][ T4964] dump_stack+0x1c/0x5c [ 50.861688][ T4964] should_fail+0x3bc/0x514 [ 50.862346][ T4964] __should_failslab+0xbc/0x10c [ 50.863018][ T4964] should_failslab+0x10/0x28 [ 50.863659][ T4964] slab_pre_alloc_hook+0x64/0xe8 [ 50.864390][ T4964] kmem_cache_alloc+0x94/0x3d4 [ 50.865121][ T4964] btrfs_add_delayed_data_ref+0x160/0xd08 [ 50.866034][ T4964] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 50.867040][ T4964] btrfs_insert_replace_extent+0x840/0x9cc [ 50.867991][ T4964] btrfs_replace_file_extents+0x89c/0x1238 [ 50.868985][ T4964] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 50.869976][ T4964] btrfs_prealloc_file_range+0x60/0x7c [ 50.870886][ T4964] btrfs_fallocate+0x1354/0x1638 [ 50.871680][ T4964] vfs_fallocate+0x4a4/0x5f4 [ 50.872356][ T4964] ioctl_preallocate+0x234/0x2dc [ 50.873084][ T4964] do_vfs_ioctl+0x1aa4/0x23f0 [ 50.873797][ T4964] __arm64_sys_ioctl+0xe4/0x1c8 [ 50.874558][ T4964] invoke_syscall+0x98/0x2b0 [ 50.875219][ T4964] el0_svc_common+0x138/0x258 [ 50.875921][ T4964] do_el0_svc+0x58/0x13c [ 50.876526][ T4964] el0_svc+0x78/0x1d0 [ 50.877103][ T4964] el0t_64_sync_handler+0xcc/0xe4 [ 50.877870][ T4964] el0t_64_sync+0x1a0/0x1a4 [ 50.879493][ T4964] ------------[ cut here ]------------ [ 50.880417][ T4964] WARNING: CPU: 1 PID: 4964 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 50.882064][ T4964] Modules linked in: [ 50.882656][ T4964] CPU: 1 PID: 4964 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.884038][ T4964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.885573][ T4964] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.886816][ T4964] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 50.887791][ T4964] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 50.888676][ T4964] sp : ffff8000204871e0 [ 50.889314][ T4964] x29: ffff800020487300 x28: dfff800000000000 x27: 0000000000000000 [ 50.890515][ T4964] x26: ffff0000dc30e800 x25: ffff8000204874e0 x24: ffff0000deb6f5c0 [ 50.891777][ T4964] x23: ffff700004090e4c x22: 00000000fffffff4 x21: 1fffe0001bd387d9 [ 50.893018][ T4964] x20: ffff0000de9c3e70 x19: ffff0000de9c3ec8 x18: 0000000000000001 [ 50.894214][ T4964] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 50.895434][ T4964] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 50.896726][ T4964] x11: 0000000000000000 x10: 0000000000000000 x9 : bc2560074f0afc00 [ 50.898034][ T4964] x8 : bc2560074f0afc00 x7 : 0000000000000001 x6 : 0000000000000001 [ 50.899359][ T4964] x5 : ffff800020486af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 50.900656][ T4964] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 50.901953][ T4964] Call trace: [ 50.902451][ T4964] btrfs_replace_file_extents+0xcc4/0x1238 [ 50.903398][ T4964] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 50.904274][ T4964] btrfs_prealloc_file_range+0x60/0x7c [ 50.905207][ T4964] btrfs_fallocate+0x1354/0x1638 [ 50.905978][ T4964] vfs_fallocate+0x4a4/0x5f4 [ 50.906672][ T4964] ioctl_preallocate+0x234/0x2dc [ 50.907495][ T4964] do_vfs_ioctl+0x1aa4/0x23f0 [ 50.908259][ T4964] __arm64_sys_ioctl+0xe4/0x1c8 [ 50.909016][ T4964] invoke_syscall+0x98/0x2b0 [ 50.909728][ T4964] el0_svc_common+0x138/0x258 [ 50.910479][ T4964] do_el0_svc+0x58/0x13c [ 50.911202][ T4964] el0_svc+0x78/0x1d0 [ 50.911850][ T4964] el0t_64_sync_handler+0xcc/0xe4 [ 50.912622][ T4964] el0t_64_sync+0x1a0/0x1a4 [ 50.913403][ T4964] irq event stamp: 79138 [ 50.914154][ T4964] hardirqs last enabled at (79137): [] __up_console_sem+0xb4/0xfc [ 50.915703][ T4964] hardirqs last disabled at (79138): [] el1_dbg+0x24/0x80 [ 50.917103][ T4964] softirqs last enabled at (79118): [] handle_softirqs+0xa40/0xbe4 [ 50.918625][ T4964] softirqs last disabled at (79083): [] __irq_exit_rcu+0x240/0x43c [ 50.920150][ T4964] ---[ end trace 5c6f179f1ab77344 ]--- [ 50.921301][ T4964] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 50.922941][ T4964] BTRFS info (device loop0): forced readonly [ 51.115970][ T4985] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4985) [ 51.119265][ T4985] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 51.120645][ T4985] BTRFS info (device loop0): using free space tree [ 51.121848][ T4985] BTRFS info (device loop0): has skinny extents [ 51.133231][ T4985] BTRFS info (device loop0): enabling ssd optimizations [ 51.136808][ T4985] FAULT_INJECTION: forcing a failure. [ 51.136808][ T4985] name failslab, interval 1, probability 0, space 0, times 0 [ 51.138940][ T4985] CPU: 1 PID: 4985 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.140354][ T4985] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.141966][ T4985] Call trace: [ 51.142483][ T4985] dump_backtrace+0x0/0x458 [ 51.143191][ T4985] show_stack+0x2c/0x3c [ 51.143809][ T4985] __dump_stack+0x30/0x40 [ 51.144454][ T4985] dump_stack_lvl+0xf4/0x15c [ 51.145142][ T4985] dump_stack+0x1c/0x5c [ 51.145775][ T4985] should_fail+0x3bc/0x514 [ 51.146446][ T4985] __should_failslab+0xbc/0x10c [ 51.147186][ T4985] should_failslab+0x10/0x28 [ 51.147887][ T4985] slab_pre_alloc_hook+0x64/0xe8 [ 51.148650][ T4985] kmem_cache_alloc+0x94/0x3d4 [ 51.149392][ T4985] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 51.150275][ T4985] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 51.151249][ T4985] btrfs_insert_replace_extent+0x840/0x9cc [ 51.152157][ T4985] btrfs_replace_file_extents+0x89c/0x1238 [ 51.153061][ T4985] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 51.153956][ T4985] btrfs_prealloc_file_range+0x60/0x7c [ 51.154839][ T4985] btrfs_fallocate+0x1354/0x1638 [ 51.155654][ T4985] vfs_fallocate+0x4a4/0x5f4 [ 51.156376][ T4985] ioctl_preallocate+0x234/0x2dc [ 51.157188][ T4985] do_vfs_ioctl+0x1aa4/0x23f0 [ 51.157938][ T4985] __arm64_sys_ioctl+0xe4/0x1c8 [ 51.158729][ T4985] invoke_syscall+0x98/0x2b0 [ 51.159462][ T4985] el0_svc_common+0x138/0x258 [ 51.160192][ T4985] do_el0_svc+0x58/0x13c [ 51.160818][ T4985] el0_svc+0x78/0x1d0 [ 51.161423][ T4985] el0t_64_sync_handler+0xcc/0xe4 [ 51.162196][ T4985] el0t_64_sync+0x1a0/0x1a4 [ 51.163862][ T4985] ------------[ cut here ]------------ [ 51.164832][ T4985] WARNING: CPU: 1 PID: 4985 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 51.166383][ T4985] Modules linked in: [ 51.166990][ T4985] CPU: 1 PID: 4985 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.168421][ T4985] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.170114][ T4985] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.171310][ T4985] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 51.172250][ T4985] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 51.173170][ T4985] sp : ffff8000205b71e0 [ 51.173822][ T4985] x29: ffff8000205b7300 x28: dfff800000000000 x27: 0000000000000000 [ 51.175141][ T4985] x26: ffff0000d2bab700 x25: ffff8000205b74e0 x24: ffff0000e25493a0 [ 51.176328][ T4985] x23: ffff7000040b6e4c x22: 00000000fffffff4 x21: 1fffe0001bd3864d [ 51.177692][ T4985] x20: ffff0000de9c3210 x19: ffff0000de9c3268 x18: 0000000000000001 [ 51.178931][ T4985] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 51.180225][ T4985] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 51.181479][ T4985] x11: 0000000000000000 x10: 0000000000000000 x9 : 1229e0503f3bcb00 [ 51.182852][ T4985] x8 : 1229e0503f3bcb00 x7 : 0000000000000001 x6 : 0000000000000001 [ 51.184238][ T4985] x5 : ffff8000205b6af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 51.185565][ T4985] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 51.186881][ T4985] Call trace: [ 51.187397][ T4985] btrfs_replace_file_extents+0xcc4/0x1238 [ 51.188322][ T4985] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 51.189179][ T4985] btrfs_prealloc_file_range+0x60/0x7c [ 51.190058][ T4985] btrfs_fallocate+0x1354/0x1638 [ 51.190805][ T4985] vfs_fallocate+0x4a4/0x5f4 [ 51.191526][ T4985] ioctl_preallocate+0x234/0x2dc [ 51.192367][ T4985] do_vfs_ioctl+0x1aa4/0x23f0 [ 51.193244][ T4985] __arm64_sys_ioctl+0xe4/0x1c8 [ 51.194081][ T4985] invoke_syscall+0x98/0x2b0 [ 51.194799][ T4985] el0_svc_common+0x138/0x258 [ 51.195557][ T4985] do_el0_svc+0x58/0x13c [ 51.196283][ T4985] el0_svc+0x78/0x1d0 [ 51.196954][ T4985] el0t_64_sync_handler+0xcc/0xe4 [ 51.197742][ T4985] el0t_64_sync+0x1a0/0x1a4 [ 51.198403][ T4985] irq event stamp: 79384 [ 51.199026][ T4985] hardirqs last enabled at (79383): [] __up_console_sem+0xb4/0xfc [ 51.200612][ T4985] hardirqs last disabled at (79384): [] el1_dbg+0x24/0x80 [ 51.201988][ T4985] softirqs last enabled at (79362): [] handle_softirqs+0xa40/0xbe4 [ 51.203501][ T4985] softirqs last disabled at (79339): [] __irq_exit_rcu+0x240/0x43c [ 51.205109][ T4985] ---[ end trace 5c6f179f1ab77345 ]--- [ 51.206964][ T4985] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 51.208521][ T4985] BTRFS info (device loop0): forced readonly [ 51.386739][ T5006] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5006) [ 51.392367][ T5006] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 51.393750][ T5006] BTRFS info (device loop0): using free space tree [ 51.394760][ T5006] BTRFS info (device loop0): has skinny extents [ 51.406291][ T5006] BTRFS info (device loop0): enabling ssd optimizations [ 51.410209][ T5006] FAULT_INJECTION: forcing a failure. [ 51.410209][ T5006] name failslab, interval 1, probability 0, space 0, times 0 [ 51.412891][ T5006] CPU: 0 PID: 5006 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.414240][ T5006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.415853][ T5006] Call trace: [ 51.416390][ T5006] dump_backtrace+0x0/0x458 [ 51.417120][ T5006] show_stack+0x2c/0x3c [ 51.417827][ T5006] __dump_stack+0x30/0x40 [ 51.418548][ T5006] dump_stack_lvl+0xf4/0x15c [ 51.419340][ T5006] dump_stack+0x1c/0x5c [ 51.420041][ T5006] should_fail+0x3bc/0x514 [ 51.420774][ T5006] __should_failslab+0xbc/0x10c [ 51.421604][ T5006] should_failslab+0x10/0x28 [ 51.422380][ T5006] slab_pre_alloc_hook+0x64/0xe8 [ 51.423179][ T5006] kmem_cache_alloc+0x94/0x3d4 [ 51.423946][ T5006] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 51.424854][ T5006] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 51.425784][ T5006] btrfs_insert_replace_extent+0x840/0x9cc [ 51.426708][ T5006] btrfs_replace_file_extents+0x89c/0x1238 [ 51.427627][ T5006] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 51.428574][ T5006] btrfs_prealloc_file_range+0x60/0x7c [ 51.429461][ T5006] btrfs_fallocate+0x1354/0x1638 [ 51.430251][ T5006] vfs_fallocate+0x4a4/0x5f4 [ 51.430950][ T5006] ioctl_preallocate+0x234/0x2dc [ 51.431740][ T5006] do_vfs_ioctl+0x1aa4/0x23f0 [ 51.432480][ T5006] __arm64_sys_ioctl+0xe4/0x1c8 [ 51.433181][ T5006] invoke_syscall+0x98/0x2b0 [ 51.433937][ T5006] el0_svc_common+0x138/0x258 [ 51.434733][ T5006] do_el0_svc+0x58/0x13c [ 51.435418][ T5006] el0_svc+0x78/0x1d0 [ 51.436091][ T5006] el0t_64_sync_handler+0xcc/0xe4 [ 51.436865][ T5006] el0t_64_sync+0x1a0/0x1a4 [ 51.439353][ T5006] ------------[ cut here ]------------ [ 51.440395][ T5006] WARNING: CPU: 0 PID: 5006 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 51.441975][ T5006] Modules linked in: [ 51.442677][ T5006] CPU: 0 PID: 5006 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.444190][ T5006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.445801][ T5006] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.447033][ T5006] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 51.448028][ T5006] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 51.448960][ T5006] sp : ffff80001fe371e0 [ 51.449546][ T5006] x29: ffff80001fe37300 x28: dfff800000000000 x27: 0000000000000000 [ 51.450810][ T5006] x26: ffff0000d2b54a00 x25: ffff80001fe374e0 x24: ffff0000e252b110 [ 51.452166][ T5006] x23: ffff700003fc6e4c x22: 00000000fffffff4 x21: 1fffe0001bd48f29 [ 51.453440][ T5006] x20: ffff0000dea478f0 x19: ffff0000dea47948 x18: 0000000000000001 [ 51.454703][ T5006] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 51.455927][ T5006] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 51.457151][ T5006] x11: 0000000000000000 x10: 0000000000000000 x9 : 0cb78b0365911600 [ 51.458327][ T5006] x8 : 0cb78b0365911600 x7 : 0000000000000001 x6 : 0000000000000001 [ 51.459543][ T5006] x5 : ffff80001fe36af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 51.460918][ T5006] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 51.462233][ T5006] Call trace: [ 51.462832][ T5006] btrfs_replace_file_extents+0xcc4/0x1238 [ 51.463787][ T5006] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 51.464690][ T5006] btrfs_prealloc_file_range+0x60/0x7c [ 51.465529][ T5006] btrfs_fallocate+0x1354/0x1638 [ 51.466268][ T5006] vfs_fallocate+0x4a4/0x5f4 [ 51.466934][ T5006] ioctl_preallocate+0x234/0x2dc [ 51.467690][ T5006] do_vfs_ioctl+0x1aa4/0x23f0 [ 51.468501][ T5006] __arm64_sys_ioctl+0xe4/0x1c8 [ 51.469334][ T5006] invoke_syscall+0x98/0x2b0 [ 51.470122][ T5006] el0_svc_common+0x138/0x258 [ 51.470930][ T5006] do_el0_svc+0x58/0x13c [ 51.471660][ T5006] el0_svc+0x78/0x1d0 [ 51.472305][ T5006] el0t_64_sync_handler+0xcc/0xe4 [ 51.473145][ T5006] el0t_64_sync+0x1a0/0x1a4 [ 51.473843][ T5006] irq event stamp: 79024 [ 51.474519][ T5006] hardirqs last enabled at (79023): [] __up_console_sem+0xb4/0xfc [ 51.476090][ T5006] hardirqs last disabled at (79024): [] el1_dbg+0x24/0x80 [ 51.477492][ T5006] softirqs last enabled at (79002): [] handle_softirqs+0xa40/0xbe4 [ 51.479133][ T5006] softirqs last disabled at (78975): [] __irq_exit_rcu+0x240/0x43c [ 51.480764][ T5006] ---[ end trace 5c6f179f1ab77346 ]--- [ 51.482537][ T5006] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 51.484167][ T5006] BTRFS info (device loop0): forced readonly [ 51.663517][ T5027] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5027) [ 51.666771][ T5027] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 51.668314][ T5027] BTRFS info (device loop0): using free space tree [ 51.669328][ T5027] BTRFS info (device loop0): has skinny extents [ 51.682039][ T5027] BTRFS info (device loop0): enabling ssd optimizations [ 51.685953][ T5027] FAULT_INJECTION: forcing a failure. [ 51.685953][ T5027] name failslab, interval 1, probability 0, space 0, times 0 [ 51.688084][ T5027] CPU: 1 PID: 5027 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.689442][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.691101][ T5027] Call trace: [ 51.691654][ T5027] dump_backtrace+0x0/0x458 [ 51.692398][ T5027] show_stack+0x2c/0x3c [ 51.693092][ T5027] __dump_stack+0x30/0x40 [ 51.693801][ T5027] dump_stack_lvl+0xf4/0x15c [ 51.694601][ T5027] dump_stack+0x1c/0x5c [ 51.695241][ T5027] should_fail+0x3bc/0x514 [ 51.695911][ T5027] __should_failslab+0xbc/0x10c [ 51.696715][ T5027] should_failslab+0x10/0x28 [ 51.697418][ T5027] slab_pre_alloc_hook+0x64/0xe8 [ 51.698160][ T5027] kmem_cache_alloc+0x94/0x3d4 [ 51.698985][ T5027] btrfs_add_delayed_data_ref+0x160/0xd08 [ 51.699935][ T5027] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 51.700949][ T5027] btrfs_insert_replace_extent+0x840/0x9cc [ 51.701952][ T5027] btrfs_replace_file_extents+0x89c/0x1238 [ 51.702921][ T5027] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 51.703879][ T5027] btrfs_prealloc_file_range+0x60/0x7c [ 51.704775][ T5027] btrfs_fallocate+0x1354/0x1638 [ 51.705591][ T5027] vfs_fallocate+0x4a4/0x5f4 [ 51.706303][ T5027] ioctl_preallocate+0x234/0x2dc [ 51.707059][ T5027] do_vfs_ioctl+0x1aa4/0x23f0 [ 51.707807][ T5027] __arm64_sys_ioctl+0xe4/0x1c8 [ 51.708645][ T5027] invoke_syscall+0x98/0x2b0 [ 51.709386][ T5027] el0_svc_common+0x138/0x258 [ 51.710156][ T5027] do_el0_svc+0x58/0x13c [ 51.710818][ T5027] el0_svc+0x78/0x1d0 [ 51.711433][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 51.712231][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 51.715985][ T5027] ------------[ cut here ]------------ [ 51.717023][ T5027] WARNING: CPU: 1 PID: 5027 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 51.718690][ T5027] Modules linked in: [ 51.719330][ T5027] CPU: 1 PID: 5027 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.720921][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.722606][ T5027] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.723849][ T5027] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 51.724827][ T5027] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 51.725753][ T5027] sp : ffff80001fcb71e0 [ 51.726456][ T5027] x29: ffff80001fcb7300 x28: dfff800000000000 x27: 0000000000000000 [ 51.727826][ T5027] x26: ffff0000c93ad800 x25: ffff80001fcb74e0 x24: ffff0000e254b110 [ 51.729203][ T5027] x23: ffff700003f96e4c x22: 00000000fffffff4 x21: 1fffe0001bd38621 [ 51.730600][ T5027] x20: ffff0000de9c30b0 x19: ffff0000de9c3108 x18: 0000000000000001 [ 51.731898][ T5027] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 51.733289][ T5027] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 51.734599][ T5027] x11: 0000000000000000 x10: 0000000000000000 x9 : c7f223fd17437800 [ 51.735948][ T5027] x8 : c7f223fd17437800 x7 : 0000000000000001 x6 : 0000000000000001 [ 51.737306][ T5027] x5 : ffff80001fcb6af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 51.738685][ T5027] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 51.739968][ T5027] Call trace: [ 51.740536][ T5027] btrfs_replace_file_extents+0xcc4/0x1238 [ 51.741495][ T5027] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 51.742445][ T5027] btrfs_prealloc_file_range+0x60/0x7c [ 51.743318][ T5027] btrfs_fallocate+0x1354/0x1638 [ 51.744139][ T5027] vfs_fallocate+0x4a4/0x5f4 [ 51.744881][ T5027] ioctl_preallocate+0x234/0x2dc [ 51.745743][ T5027] do_vfs_ioctl+0x1aa4/0x23f0 [ 51.746479][ T5027] __arm64_sys_ioctl+0xe4/0x1c8 [ 51.747288][ T5027] invoke_syscall+0x98/0x2b0 [ 51.748065][ T5027] el0_svc_common+0x138/0x258 [ 51.748826][ T5027] do_el0_svc+0x58/0x13c [ 51.749544][ T5027] el0_svc+0x78/0x1d0 [ 51.750208][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 51.750960][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 51.751683][ T5027] irq event stamp: 78850 [ 51.752335][ T5027] hardirqs last enabled at (78849): [] __up_console_sem+0xb4/0xfc [ 51.753955][ T5027] hardirqs last disabled at (78850): [] el1_dbg+0x24/0x80 [ 51.755298][ T5027] softirqs last enabled at (78830): [] handle_softirqs+0xa40/0xbe4 [ 51.756821][ T5027] softirqs last disabled at (78735): [] __irq_exit_rcu+0x240/0x43c [ 51.758346][ T5027] ---[ end trace 5c6f179f1ab77347 ]--- [ 51.760142][ T5027] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 51.761601][ T5027] BTRFS info (device loop0): forced readonly [ 51.772478][ T4520] Bluetooth: hci0: command 0x040f tx timeout [ 51.934528][ T5048] set_capacity_and_notify: 7 callbacks suppressed [ 51.934537][ T5048] loop0: detected capacity change from 0 to 32768 [ 51.938709][ T5048] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5048) [ 51.944058][ T5048] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 51.945541][ T5048] BTRFS info (device loop0): using free space tree [ 51.946731][ T5048] BTRFS info (device loop0): has skinny extents [ 51.954758][ T5048] BTRFS info (device loop0): enabling ssd optimizations [ 51.958818][ T5048] FAULT_INJECTION: forcing a failure. [ 51.958818][ T5048] name failslab, interval 1, probability 0, space 0, times 0 [ 51.960851][ T5048] CPU: 0 PID: 5048 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.962336][ T5048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.964008][ T5048] Call trace: [ 51.964537][ T5048] dump_backtrace+0x0/0x458 [ 51.965242][ T5048] show_stack+0x2c/0x3c [ 51.965907][ T5048] __dump_stack+0x30/0x40 [ 51.966593][ T5048] dump_stack_lvl+0xf4/0x15c [ 51.967373][ T5048] dump_stack+0x1c/0x5c [ 51.968076][ T5048] should_fail+0x3bc/0x514 [ 51.968891][ T5048] __should_failslab+0xbc/0x10c [ 51.969604][ T5048] should_failslab+0x10/0x28 [ 51.970345][ T5048] slab_pre_alloc_hook+0x64/0xe8 [ 51.971092][ T5048] kmem_cache_alloc+0x94/0x3d4 [ 51.971940][ T5048] btrfs_add_delayed_data_ref+0x160/0xd08 [ 51.972924][ T5048] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 51.974018][ T5048] btrfs_insert_replace_extent+0x840/0x9cc [ 51.975012][ T5048] btrfs_replace_file_extents+0x89c/0x1238 [ 51.976011][ T5048] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 51.976976][ T5048] btrfs_prealloc_file_range+0x60/0x7c [ 51.977857][ T5048] btrfs_fallocate+0x1354/0x1638 [ 51.978694][ T5048] vfs_fallocate+0x4a4/0x5f4 [ 51.979480][ T5048] ioctl_preallocate+0x234/0x2dc [ 51.980312][ T5048] do_vfs_ioctl+0x1aa4/0x23f0 [ 51.981072][ T5048] __arm64_sys_ioctl+0xe4/0x1c8 [ 51.981968][ T5048] invoke_syscall+0x98/0x2b0 [ 51.982727][ T5048] el0_svc_common+0x138/0x258 [ 51.983551][ T5048] do_el0_svc+0x58/0x13c [ 51.984292][ T5048] el0_svc+0x78/0x1d0 [ 51.984956][ T5048] el0t_64_sync_handler+0xcc/0xe4 [ 51.985810][ T5048] el0t_64_sync+0x1a0/0x1a4 [ 51.989392][ T5048] ------------[ cut here ]------------ [ 51.990344][ T5048] WARNING: CPU: 0 PID: 5048 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 51.991999][ T5048] Modules linked in: [ 51.992637][ T5048] CPU: 0 PID: 5048 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.994193][ T5048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.995856][ T5048] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.997216][ T5048] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 51.998248][ T5048] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 51.999265][ T5048] sp : ffff8000208271e0 [ 51.999969][ T5048] x29: ffff800020827300 x28: dfff800000000000 x27: 0000000000000000 [ 52.001316][ T5048] x26: ffff0000c9bfb200 x25: ffff8000208274e0 x24: ffff0000e252ce80 [ 52.002620][ T5048] x23: ffff700004104e4c x22: 00000000fffffff4 x21: 1fffe0001bd48f55 [ 52.003913][ T5048] x20: ffff0000dea47a50 x19: ffff0000dea47aa8 x18: 0000000000000001 [ 52.005289][ T5048] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 52.006625][ T5048] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 52.007995][ T5048] x11: 0000000000000000 x10: 0000000000000000 x9 : 483f87339f218d00 [ 52.009332][ T5048] x8 : 483f87339f218d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 52.010672][ T5048] x5 : ffff800020826af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 52.012001][ T5048] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 52.013229][ T5048] Call trace: [ 52.013786][ T5048] btrfs_replace_file_extents+0xcc4/0x1238 [ 52.014796][ T5048] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 52.015775][ T5048] btrfs_prealloc_file_range+0x60/0x7c [ 52.016651][ T5048] btrfs_fallocate+0x1354/0x1638 [ 52.017520][ T5048] vfs_fallocate+0x4a4/0x5f4 [ 52.018293][ T5048] ioctl_preallocate+0x234/0x2dc [ 52.019111][ T5048] do_vfs_ioctl+0x1aa4/0x23f0 [ 52.019914][ T5048] __arm64_sys_ioctl+0xe4/0x1c8 [ 52.020737][ T5048] invoke_syscall+0x98/0x2b0 [ 52.021498][ T5048] el0_svc_common+0x138/0x258 [ 52.022263][ T5048] do_el0_svc+0x58/0x13c [ 52.022984][ T5048] el0_svc+0x78/0x1d0 [ 52.023637][ T5048] el0t_64_sync_handler+0xcc/0xe4 [ 52.024518][ T5048] el0t_64_sync+0x1a0/0x1a4 [ 52.025260][ T5048] irq event stamp: 79614 [ 52.025946][ T5048] hardirqs last enabled at (79613): [] __up_console_sem+0xb4/0xfc [ 52.027537][ T5048] hardirqs last disabled at (79614): [] el1_dbg+0x24/0x80 [ 52.028990][ T5048] softirqs last enabled at (79594): [] handle_softirqs+0xa40/0xbe4 [ 52.030589][ T5048] softirqs last disabled at (79499): [] __irq_exit_rcu+0x240/0x43c [ 52.032104][ T5048] ---[ end trace 5c6f179f1ab77348 ]--- [ 52.034546][ T5048] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 52.036272][ T5048] BTRFS info (device loop0): forced readonly [ 52.213364][ T5069] loop0: detected capacity change from 0 to 32768 [ 52.215776][ T5069] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5069) [ 52.219097][ T5069] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 52.220580][ T5069] BTRFS info (device loop0): using free space tree [ 52.221707][ T5069] BTRFS info (device loop0): has skinny extents [ 52.234649][ T5069] BTRFS info (device loop0): enabling ssd optimizations [ 52.238382][ T5069] FAULT_INJECTION: forcing a failure. [ 52.238382][ T5069] name failslab, interval 1, probability 0, space 0, times 0 [ 52.240604][ T5069] CPU: 0 PID: 5069 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.242031][ T5069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 52.243741][ T5069] Call trace: [ 52.244275][ T5069] dump_backtrace+0x0/0x458 [ 52.245025][ T5069] show_stack+0x2c/0x3c [ 52.245733][ T5069] __dump_stack+0x30/0x40 [ 52.246442][ T5069] dump_stack_lvl+0xf4/0x15c [ 52.247205][ T5069] dump_stack+0x1c/0x5c [ 52.247892][ T5069] should_fail+0x3bc/0x514 [ 52.248571][ T5069] __should_failslab+0xbc/0x10c [ 52.249371][ T5069] should_failslab+0x10/0x28 [ 52.250169][ T5069] slab_pre_alloc_hook+0x64/0xe8 [ 52.251012][ T5069] kmem_cache_alloc+0x94/0x3d4 [ 52.251846][ T5069] btrfs_add_delayed_data_ref+0x160/0xd08 [ 52.252829][ T5069] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 52.253916][ T5069] btrfs_insert_replace_extent+0x840/0x9cc [ 52.254924][ T5069] btrfs_replace_file_extents+0x89c/0x1238 [ 52.255886][ T5069] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 52.256875][ T5069] btrfs_prealloc_file_range+0x60/0x7c [ 52.257748][ T5069] btrfs_fallocate+0x1354/0x1638 [ 52.258568][ T5069] vfs_fallocate+0x4a4/0x5f4 [ 52.259341][ T5069] ioctl_preallocate+0x234/0x2dc [ 52.260155][ T5069] do_vfs_ioctl+0x1aa4/0x23f0 [ 52.260955][ T5069] __arm64_sys_ioctl+0xe4/0x1c8 [ 52.261784][ T5069] invoke_syscall+0x98/0x2b0 [ 52.262530][ T5069] el0_svc_common+0x138/0x258 [ 52.263327][ T5069] do_el0_svc+0x58/0x13c [ 52.264045][ T5069] el0_svc+0x78/0x1d0 [ 52.264671][ T5069] el0t_64_sync_handler+0xcc/0xe4 [ 52.265467][ T5069] el0t_64_sync+0x1a0/0x1a4 [ 52.268273][ T5069] ------------[ cut here ]------------ [ 52.269207][ T5069] WARNING: CPU: 0 PID: 5069 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 52.270827][ T5069] Modules linked in: [ 52.271461][ T5069] CPU: 0 PID: 5069 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.273009][ T5069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 52.274694][ T5069] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.276031][ T5069] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 52.277078][ T5069] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 52.278039][ T5069] sp : ffff800020e171e0 [ 52.278731][ T5069] x29: ffff800020e17300 x28: dfff800000000000 x27: 0000000000000000 [ 52.280138][ T5069] x26: ffff0000d2404400 x25: ffff800020e174e0 x24: ffff0000e252ebf0 [ 52.281475][ T5069] x23: ffff7000041c2e4c x22: 00000000fffffff4 x21: 1fffe0001bd48f81 [ 52.282788][ T5069] x20: ffff0000dea47bb0 x19: ffff0000dea47c08 x18: 0000000000000001 [ 52.284101][ T5069] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 52.285442][ T5069] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 52.286801][ T5069] x11: 0000000000000000 x10: 0000000000000000 x9 : c5f059e8a1f11b00 [ 52.288082][ T5069] x8 : c5f059e8a1f11b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 52.289387][ T5069] x5 : ffff800020e16af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 52.290771][ T5069] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 52.292190][ T5069] Call trace: [ 52.292745][ T5069] btrfs_replace_file_extents+0xcc4/0x1238 [ 52.293760][ T5069] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 52.294825][ T5069] btrfs_prealloc_file_range+0x60/0x7c [ 52.295713][ T5069] btrfs_fallocate+0x1354/0x1638 [ 52.296527][ T5069] vfs_fallocate+0x4a4/0x5f4 [ 52.297315][ T5069] ioctl_preallocate+0x234/0x2dc [ 52.298128][ T5069] do_vfs_ioctl+0x1aa4/0x23f0 [ 52.298941][ T5069] __arm64_sys_ioctl+0xe4/0x1c8 [ 52.299757][ T5069] invoke_syscall+0x98/0x2b0 [ 52.300567][ T5069] el0_svc_common+0x138/0x258 [ 52.301326][ T5069] do_el0_svc+0x58/0x13c [ 52.302007][ T5069] el0_svc+0x78/0x1d0 [ 52.302702][ T5069] el0t_64_sync_handler+0xcc/0xe4 [ 52.303606][ T5069] el0t_64_sync+0x1a0/0x1a4 [ 52.304403][ T5069] irq event stamp: 79186 [ 52.305079][ T5069] hardirqs last enabled at (79185): [] __up_console_sem+0xb4/0xfc [ 52.306655][ T5069] hardirqs last disabled at (79186): [] el1_dbg+0x24/0x80 [ 52.308123][ T5069] softirqs last enabled at (79166): [] handle_softirqs+0xa40/0xbe4 [ 52.309634][ T5069] softirqs last disabled at (79021): [] __irq_exit_rcu+0x240/0x43c [ 52.311122][ T5069] ---[ end trace 5c6f179f1ab77349 ]--- [ 52.312911][ T5069] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 52.314639][ T5069] BTRFS info (device loop0): forced readonly [ 52.490525][ T5090] loop0: detected capacity change from 0 to 32768 [ 52.493302][ T5090] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5090) [ 52.496722][ T5090] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 52.498165][ T5090] BTRFS info (device loop0): using free space tree [ 52.499289][ T5090] BTRFS info (device loop0): has skinny extents [ 52.507706][ T5090] BTRFS info (device loop0): enabling ssd optimizations [ 52.512185][ T5090] FAULT_INJECTION: forcing a failure. [ 52.512185][ T5090] name failslab, interval 1, probability 0, space 0, times 0 [ 52.514355][ T5090] CPU: 1 PID: 5090 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.515692][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 52.517230][ T5090] Call trace: [ 52.517711][ T5090] dump_backtrace+0x0/0x458 [ 52.518479][ T5090] show_stack+0x2c/0x3c [ 52.519133][ T5090] __dump_stack+0x30/0x40 [ 52.519794][ T5090] dump_stack_lvl+0xf4/0x15c [ 52.520554][ T5090] dump_stack+0x1c/0x5c [ 52.521220][ T5090] should_fail+0x3bc/0x514 [ 52.521932][ T5090] __should_failslab+0xbc/0x10c [ 52.522697][ T5090] should_failslab+0x10/0x28 [ 52.523532][ T5090] slab_pre_alloc_hook+0x64/0xe8 [ 52.524315][ T5090] kmem_cache_alloc+0x94/0x3d4 [ 52.525046][ T5090] btrfs_add_delayed_data_ref+0x160/0xd08 [ 52.526029][ T5090] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 52.527030][ T5090] btrfs_insert_replace_extent+0x840/0x9cc [ 52.527979][ T5090] btrfs_replace_file_extents+0x89c/0x1238 [ 52.528879][ T5090] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 52.529688][ T5090] btrfs_prealloc_file_range+0x60/0x7c [ 52.530517][ T5090] btrfs_fallocate+0x1354/0x1638 [ 52.531283][ T5090] vfs_fallocate+0x4a4/0x5f4 [ 52.532067][ T5090] ioctl_preallocate+0x234/0x2dc [ 52.532884][ T5090] do_vfs_ioctl+0x1aa4/0x23f0 [ 52.533581][ T5090] __arm64_sys_ioctl+0xe4/0x1c8 [ 52.534354][ T5090] invoke_syscall+0x98/0x2b0 [ 52.535077][ T5090] el0_svc_common+0x138/0x258 [ 52.535797][ T5090] do_el0_svc+0x58/0x13c [ 52.536495][ T5090] el0_svc+0x78/0x1d0 [ 52.537130][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 52.537884][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 52.539487][ T5090] ------------[ cut here ]------------ [ 52.540441][ T5090] WARNING: CPU: 1 PID: 5090 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 52.541951][ T5090] Modules linked in: [ 52.542584][ T5090] CPU: 1 PID: 5090 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.544036][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 52.545509][ T5090] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.546667][ T5090] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 52.547596][ T5090] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 52.548517][ T5090] sp : ffff800020f471e0 [ 52.549134][ T5090] x29: ffff800020f47300 x28: dfff800000000000 x27: 0000000000000000 [ 52.550340][ T5090] x26: ffff0000c23cd900 x25: ffff800020f474e0 x24: ffff0000e254c4b0 [ 52.551522][ T5090] x23: ffff7000041e8e4c x22: 00000000fffffff4 x21: 1fffe0001bd38663 [ 52.552805][ T5090] x20: ffff0000de9c32c0 x19: ffff0000de9c3318 x18: 0000000000000001 [ 52.554142][ T5090] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 52.555342][ T5090] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 52.556502][ T5090] x11: 0000000000000000 x10: 0000000000000000 x9 : 789f537a92d74000 [ 52.557815][ T5090] x8 : 789f537a92d74000 x7 : 0000000000000001 x6 : 0000000000000001 [ 52.559148][ T5090] x5 : ffff800020f46af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 52.560408][ T5090] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 52.561649][ T5090] Call trace: [ 52.562130][ T5090] btrfs_replace_file_extents+0xcc4/0x1238 [ 52.563049][ T5090] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 52.563975][ T5090] btrfs_prealloc_file_range+0x60/0x7c [ 52.564865][ T5090] btrfs_fallocate+0x1354/0x1638 [ 52.565667][ T5090] vfs_fallocate+0x4a4/0x5f4 [ 52.566407][ T5090] ioctl_preallocate+0x234/0x2dc [ 52.567229][ T5090] do_vfs_ioctl+0x1aa4/0x23f0 [ 52.568021][ T5090] __arm64_sys_ioctl+0xe4/0x1c8 [ 52.568778][ T5090] invoke_syscall+0x98/0x2b0 [ 52.569492][ T5090] el0_svc_common+0x138/0x258 [ 52.570321][ T5090] do_el0_svc+0x58/0x13c [ 52.571028][ T5090] el0_svc+0x78/0x1d0 [ 52.571743][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 52.572600][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 52.573372][ T5090] irq event stamp: 78764 [ 52.574094][ T5090] hardirqs last enabled at (78763): [] __up_console_sem+0xb4/0xfc [ 52.575621][ T5090] hardirqs last disabled at (78764): [] el1_dbg+0x24/0x80 [ 52.576912][ T5090] softirqs last enabled at (78744): [] handle_softirqs+0xa40/0xbe4 [ 52.578418][ T5090] softirqs last disabled at (78725): [] __irq_exit_rcu+0x240/0x43c [ 52.579920][ T5090] ---[ end trace 5c6f179f1ab7734a ]--- [ 52.581896][ T5090] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 52.583565][ T5090] BTRFS info (device loop0): forced readonly [ 52.774957][ T5111] loop0: detected capacity change from 0 to 32768 [ 52.777366][ T5111] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5111) [ 52.782912][ T5111] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 52.787702][ T5111] BTRFS info (device loop0): using free space tree [ 52.791790][ T5111] BTRFS info (device loop0): has skinny extents [ 52.799837][ T5111] BTRFS info (device loop0): enabling ssd optimizations [ 52.804652][ T5111] FAULT_INJECTION: forcing a failure. [ 52.804652][ T5111] name failslab, interval 1, probability 0, space 0, times 0 [ 52.806702][ T5111] CPU: 0 PID: 5111 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.808065][ T5111] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 52.809863][ T5111] Call trace: [ 52.810416][ T5111] dump_backtrace+0x0/0x458 [ 52.811157][ T5111] show_stack+0x2c/0x3c [ 52.811787][ T5111] __dump_stack+0x30/0x40 [ 52.812442][ T5111] dump_stack_lvl+0xf4/0x15c [ 52.813231][ T5111] dump_stack+0x1c/0x5c [ 52.813926][ T5111] should_fail+0x3bc/0x514 [ 52.814672][ T5111] __should_failslab+0xbc/0x10c [ 52.815494][ T5111] should_failslab+0x10/0x28 [ 52.816298][ T5111] slab_pre_alloc_hook+0x64/0xe8 [ 52.817156][ T5111] kmem_cache_alloc+0x94/0x3d4 [ 52.817936][ T5111] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 52.818938][ T5111] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 52.819984][ T5111] btrfs_insert_replace_extent+0x840/0x9cc [ 52.820883][ T5111] btrfs_replace_file_extents+0x89c/0x1238 [ 52.821810][ T5111] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 52.822810][ T5111] btrfs_prealloc_file_range+0x60/0x7c [ 52.823726][ T5111] btrfs_fallocate+0x1354/0x1638 [ 52.824547][ T5111] vfs_fallocate+0x4a4/0x5f4 [ 52.825278][ T5111] ioctl_preallocate+0x234/0x2dc [ 52.826093][ T5111] do_vfs_ioctl+0x1aa4/0x23f0 [ 52.826827][ T5111] __arm64_sys_ioctl+0xe4/0x1c8 [ 52.827621][ T5111] invoke_syscall+0x98/0x2b0 [ 52.828376][ T5111] el0_svc_common+0x138/0x258 [ 52.829109][ T5111] do_el0_svc+0x58/0x13c [ 52.829872][ T5111] el0_svc+0x78/0x1d0 [ 52.830515][ T5111] el0t_64_sync_handler+0xcc/0xe4 [ 52.831304][ T5111] el0t_64_sync+0x1a0/0x1a4 [ 52.832950][ T5111] ------------[ cut here ]------------ [ 52.833860][ T5111] WARNING: CPU: 0 PID: 5111 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 52.835553][ T5111] Modules linked in: [ 52.836178][ T5111] CPU: 0 PID: 5111 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.837628][ T5111] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 52.839230][ T5111] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.840466][ T5111] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 52.841442][ T5111] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 52.842387][ T5111] sp : ffff8000208271e0 [ 52.843023][ T5111] x29: ffff800020827300 x28: dfff800000000000 x27: 0000000000000000 [ 52.844447][ T5111] x26: ffff0000cec1c600 x25: ffff8000208274e0 x24: ffff0000e25109d0 [ 52.845833][ T5111] x23: ffff700004104e4c x22: 00000000fffffff4 x21: 1fffe0001bd48fad [ 52.847153][ T5111] x20: ffff0000dea47d10 x19: ffff0000dea47d68 x18: 0000000000000001 [ 52.848507][ T5111] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 52.849853][ T5111] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 52.851307][ T5111] x11: 0000000000000000 x10: 0000000000000000 x9 : e060e798b1ed5600 [ 52.852753][ T5111] x8 : e060e798b1ed5600 x7 : 0000000000000001 x6 : 0000000000000001 [ 52.854072][ T5111] x5 : ffff800020826af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 52.855351][ T5111] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 52.856805][ T5111] Call trace: [ 52.857342][ T5111] btrfs_replace_file_extents+0xcc4/0x1238 [ 52.858227][ T5111] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 52.859153][ T5111] btrfs_prealloc_file_range+0x60/0x7c [ 52.860052][ T5111] btrfs_fallocate+0x1354/0x1638 [ 52.860915][ T5111] vfs_fallocate+0x4a4/0x5f4 [ 52.861719][ T5111] ioctl_preallocate+0x234/0x2dc [ 52.862585][ T5111] do_vfs_ioctl+0x1aa4/0x23f0 [ 52.863362][ T5111] __arm64_sys_ioctl+0xe4/0x1c8 [ 52.864190][ T5111] invoke_syscall+0x98/0x2b0 [ 52.864941][ T5111] el0_svc_common+0x138/0x258 [ 52.865670][ T5111] do_el0_svc+0x58/0x13c [ 52.866289][ T5111] el0_svc+0x78/0x1d0 [ 52.866925][ T5111] el0t_64_sync_handler+0xcc/0xe4 [ 52.867757][ T5111] el0t_64_sync+0x1a0/0x1a4 [ 52.868676][ T5111] irq event stamp: 79382 [ 52.869348][ T5111] hardirqs last enabled at (79381): [] __up_console_sem+0xb4/0xfc [ 52.870804][ T5111] hardirqs last disabled at (79382): [] el1_dbg+0x24/0x80 [ 52.872045][ T5111] softirqs last enabled at (79360): [] handle_softirqs+0xa40/0xbe4 [ 52.873403][ T5111] softirqs last disabled at (79323): [] __irq_exit_rcu+0x240/0x43c [ 52.874799][ T5111] ---[ end trace 5c6f179f1ab7734b ]--- [ 52.876067][ T5111] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 52.877571][ T5111] BTRFS info (device loop0): forced readonly [ 53.095455][ T5132] loop0: detected capacity change from 0 to 32768 [ 53.098015][ T5132] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5132) [ 53.101996][ T5132] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 53.103465][ T5132] BTRFS info (device loop0): using free space tree [ 53.104642][ T5132] BTRFS info (device loop0): has skinny extents [ 53.123239][ T5132] BTRFS info (device loop0): enabling ssd optimizations [ 53.126729][ T5132] FAULT_INJECTION: forcing a failure. [ 53.126729][ T5132] name failslab, interval 1, probability 0, space 0, times 0 [ 53.128660][ T5132] CPU: 1 PID: 5132 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.130064][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.131646][ T5132] Call trace: [ 53.132193][ T5132] dump_backtrace+0x0/0x458 [ 53.132962][ T5132] show_stack+0x2c/0x3c [ 53.133633][ T5132] __dump_stack+0x30/0x40 [ 53.134351][ T5132] dump_stack_lvl+0xf4/0x15c [ 53.135077][ T5132] dump_stack+0x1c/0x5c [ 53.135749][ T5132] should_fail+0x3bc/0x514 [ 53.136520][ T5132] __should_failslab+0xbc/0x10c [ 53.137283][ T5132] should_failslab+0x10/0x28 [ 53.137984][ T5132] slab_pre_alloc_hook+0x64/0xe8 [ 53.138806][ T5132] kmem_cache_alloc+0x94/0x3d4 [ 53.139574][ T5132] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 53.140479][ T5132] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 53.141432][ T5132] btrfs_insert_replace_extent+0x840/0x9cc [ 53.142387][ T5132] btrfs_replace_file_extents+0x89c/0x1238 [ 53.143304][ T5132] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 53.144165][ T5132] btrfs_prealloc_file_range+0x60/0x7c [ 53.144992][ T5132] btrfs_fallocate+0x1354/0x1638 [ 53.145717][ T5132] vfs_fallocate+0x4a4/0x5f4 [ 53.146407][ T5132] ioctl_preallocate+0x234/0x2dc [ 53.147142][ T5132] do_vfs_ioctl+0x1aa4/0x23f0 [ 53.147842][ T5132] __arm64_sys_ioctl+0xe4/0x1c8 [ 53.148579][ T5132] invoke_syscall+0x98/0x2b0 [ 53.149262][ T5132] el0_svc_common+0x138/0x258 [ 53.149960][ T5132] do_el0_svc+0x58/0x13c [ 53.150587][ T5132] el0_svc+0x78/0x1d0 [ 53.151185][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 53.151933][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 53.155009][ T5132] ------------[ cut here ]------------ [ 53.155918][ T5132] WARNING: CPU: 1 PID: 5132 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 53.157409][ T5132] Modules linked in: [ 53.157951][ T5132] CPU: 1 PID: 5132 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.159306][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.160901][ T5132] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.162240][ T5132] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 53.163253][ T5132] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 53.164193][ T5132] sp : ffff800020fa71e0 [ 53.164869][ T5132] x29: ffff800020fa7300 x28: dfff800000000000 x27: 0000000000000000 [ 53.166217][ T5132] x26: ffff0000cea99500 x25: ffff800020fa74e0 x24: ffff0000e254e220 [ 53.167513][ T5132] x23: ffff7000041f4e4c x22: 00000000fffffff4 x21: 1fffe0001bd3868f [ 53.168770][ T5132] x20: ffff0000de9c3420 x19: ffff0000de9c3478 x18: 0000000000000001 [ 53.170050][ T5132] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 53.171254][ T5132] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 53.172458][ T5132] x11: 0000000000000000 x10: 0000000000000000 x9 : 12712e0a90605e00 [ 53.173703][ T5132] x8 : 12712e0a90605e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.175055][ T5132] x5 : ffff800020fa6af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 53.176429][ T5132] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 53.177823][ T5132] Call trace: [ 53.178271][ T5132] btrfs_replace_file_extents+0xcc4/0x1238 [ 53.179141][ T5132] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 53.180029][ T5132] btrfs_prealloc_file_range+0x60/0x7c [ 53.180854][ T5132] btrfs_fallocate+0x1354/0x1638 [ 53.181604][ T5132] vfs_fallocate+0x4a4/0x5f4 [ 53.182278][ T5132] ioctl_preallocate+0x234/0x2dc [ 53.183008][ T5132] do_vfs_ioctl+0x1aa4/0x23f0 [ 53.183683][ T5132] __arm64_sys_ioctl+0xe4/0x1c8 [ 53.184440][ T5132] invoke_syscall+0x98/0x2b0 [ 53.185142][ T5132] el0_svc_common+0x138/0x258 [ 53.185857][ T5132] do_el0_svc+0x58/0x13c [ 53.186448][ T5132] el0_svc+0x78/0x1d0 [ 53.187063][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 53.187905][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 53.188619][ T5132] irq event stamp: 79516 [ 53.189234][ T5132] hardirqs last enabled at (79515): [] __up_console_sem+0xb4/0xfc [ 53.190672][ T5132] hardirqs last disabled at (79516): [] el1_dbg+0x24/0x80 [ 53.191982][ T5132] softirqs last enabled at (79494): [] handle_softirqs+0xa40/0xbe4 [ 53.193480][ T5132] softirqs last disabled at (79435): [] __irq_exit_rcu+0x240/0x43c [ 53.194954][ T5132] ---[ end trace 5c6f179f1ab7734c ]--- [ 53.195969][ T5132] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 53.199730][ T5132] BTRFS info (device loop0): forced readonly [ 53.389448][ T5153] loop0: detected capacity change from 0 to 32768 [ 53.391980][ T5153] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5153) [ 53.395338][ T5153] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 53.396743][ T5153] BTRFS info (device loop0): using free space tree [ 53.397732][ T5153] BTRFS info (device loop0): has skinny extents [ 53.406491][ T5153] BTRFS info (device loop0): enabling ssd optimizations [ 53.409671][ T5153] FAULT_INJECTION: forcing a failure. [ 53.409671][ T5153] name failslab, interval 1, probability 0, space 0, times 0 [ 53.411716][ T5153] CPU: 1 PID: 5153 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.413258][ T5153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.414841][ T5153] Call trace: [ 53.415331][ T5153] dump_backtrace+0x0/0x458 [ 53.416094][ T5153] show_stack+0x2c/0x3c [ 53.416843][ T5153] __dump_stack+0x30/0x40 [ 53.417464][ T5153] dump_stack_lvl+0xf4/0x15c [ 53.418180][ T5153] dump_stack+0x1c/0x5c [ 53.418864][ T5153] should_fail+0x3bc/0x514 [ 53.419624][ T5153] __should_failslab+0xbc/0x10c [ 53.420454][ T5153] should_failslab+0x10/0x28 [ 53.421198][ T5153] slab_pre_alloc_hook+0x64/0xe8 [ 53.421927][ T5153] kmem_cache_alloc+0x94/0x3d4 [ 53.422678][ T5153] btrfs_add_delayed_data_ref+0x160/0xd08 [ 53.423577][ T5153] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 53.424620][ T5153] btrfs_insert_replace_extent+0x840/0x9cc [ 53.425622][ T5153] btrfs_replace_file_extents+0x89c/0x1238 [ 53.426557][ T5153] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 53.427482][ T5153] btrfs_prealloc_file_range+0x60/0x7c [ 53.428308][ T5153] btrfs_fallocate+0x1354/0x1638 [ 53.429119][ T5153] vfs_fallocate+0x4a4/0x5f4 [ 53.429848][ T5153] ioctl_preallocate+0x234/0x2dc [ 53.430607][ T5153] do_vfs_ioctl+0x1aa4/0x23f0 [ 53.431339][ T5153] __arm64_sys_ioctl+0xe4/0x1c8 [ 53.432087][ T5153] invoke_syscall+0x98/0x2b0 [ 53.432831][ T5153] el0_svc_common+0x138/0x258 [ 53.433556][ T5153] do_el0_svc+0x58/0x13c [ 53.434254][ T5153] el0_svc+0x78/0x1d0 [ 53.434900][ T5153] el0t_64_sync_handler+0xcc/0xe4 [ 53.435671][ T5153] el0t_64_sync+0x1a0/0x1a4 [ 53.441880][ T5153] ------------[ cut here ]------------ [ 53.443027][ T5153] WARNING: CPU: 0 PID: 5153 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 53.444710][ T5153] Modules linked in: [ 53.445383][ T5153] CPU: 0 PID: 5153 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.446990][ T5153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.448713][ T5153] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.450069][ T5153] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 53.451077][ T5153] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 53.452058][ T5153] sp : ffff8000210671e0 [ 53.452751][ T5153] x29: ffff800021067300 x28: dfff800000000000 x27: 0000000000000000 [ 53.454024][ T5153] x26: ffff0000c86ddb00 x25: ffff8000210674e0 x24: ffff0000e254f5c0 [ 53.455167][ T5153] x23: ffff70000420ce4c x22: 00000000fffffff4 x21: 1fffe0001bd386bb [ 53.456289][ T5153] x20: ffff0000de9c3580 x19: ffff0000de9c35d8 x18: 0000000000000001 [ 53.457454][ T5153] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 53.458759][ T5153] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 53.460177][ T5153] x11: 0000000000000000 x10: 0000000000000000 x9 : 1b8117a74a69f500 [ 53.461635][ T5153] x8 : 1b8117a74a69f500 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.462972][ T5153] x5 : ffff800021066af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 53.464302][ T5153] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 53.465681][ T5153] Call trace: [ 53.466198][ T5153] btrfs_replace_file_extents+0xcc4/0x1238 [ 53.467161][ T5153] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 53.468086][ T5153] btrfs_prealloc_file_range+0x60/0x7c [ 53.469012][ T5153] btrfs_fallocate+0x1354/0x1638 [ 53.469797][ T5153] vfs_fallocate+0x4a4/0x5f4 [ 53.470557][ T5153] ioctl_preallocate+0x234/0x2dc [ 53.471454][ T5153] do_vfs_ioctl+0x1aa4/0x23f0 [ 53.472268][ T5153] __arm64_sys_ioctl+0xe4/0x1c8 [ 53.473038][ T5153] invoke_syscall+0x98/0x2b0 [ 53.473855][ T5153] el0_svc_common+0x138/0x258 [ 53.474656][ T5153] do_el0_svc+0x58/0x13c [ 53.475351][ T5153] el0_svc+0x78/0x1d0 [ 53.476001][ T5153] el0t_64_sync_handler+0xcc/0xe4 [ 53.476798][ T5153] el0t_64_sync+0x1a0/0x1a4 [ 53.477459][ T5153] irq event stamp: 78352 [ 53.478146][ T5153] hardirqs last enabled at (78351): [] __up_console_sem+0xb4/0xfc [ 53.479676][ T5153] hardirqs last disabled at (78352): [] el1_dbg+0x24/0x80 [ 53.481018][ T5153] softirqs last enabled at (78328): [] handle_softirqs+0xa40/0xbe4 [ 53.482320][ T5153] softirqs last disabled at (78301): [] __irq_exit_rcu+0x240/0x43c [ 53.483655][ T5153] ---[ end trace 5c6f179f1ab7734d ]--- [ 53.485140][ T5153] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 53.486654][ T5153] BTRFS info (device loop0): forced readonly [ 53.681567][ T5174] loop0: detected capacity change from 0 to 32768 [ 53.684208][ T5174] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5174) [ 53.687428][ T5174] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 53.688932][ T5174] BTRFS info (device loop0): using free space tree [ 53.689941][ T5174] BTRFS info (device loop0): has skinny extents [ 53.704523][ T5174] BTRFS info (device loop0): enabling ssd optimizations [ 53.708035][ T5174] FAULT_INJECTION: forcing a failure. [ 53.708035][ T5174] name failslab, interval 1, probability 0, space 0, times 0 [ 53.710302][ T5174] CPU: 0 PID: 5174 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.711917][ T5174] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.713605][ T5174] Call trace: [ 53.714119][ T5174] dump_backtrace+0x0/0x458 [ 53.714917][ T5174] show_stack+0x2c/0x3c [ 53.715570][ T5174] __dump_stack+0x30/0x40 [ 53.716217][ T5174] dump_stack_lvl+0xf4/0x15c [ 53.717002][ T5174] dump_stack+0x1c/0x5c [ 53.717898][ T5174] should_fail+0x3bc/0x514 [ 53.718603][ T5174] __should_failslab+0xbc/0x10c [ 53.719452][ T5174] should_failslab+0x10/0x28 [ 53.720303][ T5174] slab_pre_alloc_hook+0x64/0xe8 [ 53.721173][ T5174] kmem_cache_alloc+0x94/0x3d4 [ 53.721988][ T5174] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 53.722970][ T5174] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 53.724047][ T5174] btrfs_insert_replace_extent+0x840/0x9cc [ 53.724981][ T5174] btrfs_replace_file_extents+0x89c/0x1238 [ 53.725955][ T5174] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 53.726906][ T5174] btrfs_prealloc_file_range+0x60/0x7c [ 53.727799][ T5174] btrfs_fallocate+0x1354/0x1638 [ 53.728596][ T5174] vfs_fallocate+0x4a4/0x5f4 [ 53.729312][ T5174] ioctl_preallocate+0x234/0x2dc [ 53.730108][ T5174] do_vfs_ioctl+0x1aa4/0x23f0 [ 53.730970][ T5174] __arm64_sys_ioctl+0xe4/0x1c8 [ 53.731740][ T5174] invoke_syscall+0x98/0x2b0 [ 53.732502][ T5174] el0_svc_common+0x138/0x258 [ 53.733261][ T5174] do_el0_svc+0x58/0x13c [ 53.733933][ T5174] el0_svc+0x78/0x1d0 [ 53.734578][ T5174] el0t_64_sync_handler+0xcc/0xe4 [ 53.735382][ T5174] el0t_64_sync+0x1a0/0x1a4 [ 53.737041][ T5174] ------------[ cut here ]------------ [ 53.737955][ T5174] WARNING: CPU: 0 PID: 5174 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 53.739420][ T5174] Modules linked in: [ 53.739979][ T5174] CPU: 0 PID: 5174 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.741502][ T5174] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.743192][ T5174] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.744486][ T5174] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 53.745487][ T5174] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 53.746477][ T5174] sp : ffff800020fa71e0 [ 53.747097][ T5174] x29: ffff800020fa7300 x28: dfff800000000000 x27: 0000000000000000 [ 53.748343][ T5174] x26: ffff0000c7df1900 x25: ffff800020fa74e0 x24: ffff0000e2510000 [ 53.749637][ T5174] x23: ffff7000041f4e4c x22: 00000000fffffff4 x21: 1fffe0001bd48fc3 [ 53.750815][ T5174] x20: ffff0000dea47dc0 x19: ffff0000dea47e18 x18: 0000000000000001 [ 53.752018][ T5174] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 53.753422][ T5174] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 53.754872][ T5174] x11: 0000000000000000 x10: 0000000000000000 x9 : fa127b3f3d7f0900 [ 53.756235][ T5174] x8 : fa127b3f3d7f0900 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.757644][ T5174] x5 : ffff800020fa6af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 53.758957][ T5174] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 53.760421][ T5174] Call trace: [ 53.760965][ T5174] btrfs_replace_file_extents+0xcc4/0x1238 [ 53.761924][ T5174] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 53.762814][ T5174] btrfs_prealloc_file_range+0x60/0x7c [ 53.763672][ T5174] btrfs_fallocate+0x1354/0x1638 [ 53.764530][ T5174] vfs_fallocate+0x4a4/0x5f4 [ 53.765196][ T5174] ioctl_preallocate+0x234/0x2dc [ 53.765974][ T5174] do_vfs_ioctl+0x1aa4/0x23f0 [ 53.766673][ T5174] __arm64_sys_ioctl+0xe4/0x1c8 [ 53.767392][ T5174] invoke_syscall+0x98/0x2b0 [ 53.768268][ T5174] el0_svc_common+0x138/0x258 [ 53.769048][ T5174] do_el0_svc+0x58/0x13c [ 53.769774][ T5174] el0_svc+0x78/0x1d0 [ 53.770472][ T5174] el0t_64_sync_handler+0xcc/0xe4 [ 53.771333][ T5174] el0t_64_sync+0x1a0/0x1a4 [ 53.772135][ T5174] irq event stamp: 78806 [ 53.772880][ T5174] hardirqs last enabled at (78805): [] __up_console_sem+0xb4/0xfc [ 53.774493][ T5174] hardirqs last disabled at (78806): [] el1_dbg+0x24/0x80 [ 53.775958][ T5174] softirqs last enabled at (78784): [] handle_softirqs+0xa40/0xbe4 [ 53.777477][ T5174] softirqs last disabled at (78733): [] __irq_exit_rcu+0x240/0x43c [ 53.779014][ T5174] ---[ end trace 5c6f179f1ab7734e ]--- [ 53.780862][ T5174] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 53.782756][ T5174] BTRFS info (device loop0): forced readonly [ 53.851810][ T4589] Bluetooth: hci0: command 0x0419 tx timeout [ 53.958101][ T5195] loop0: detected capacity change from 0 to 32768 [ 53.960653][ T5195] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5195) [ 53.964940][ T5195] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 53.967573][ T5195] BTRFS info (device loop0): using free space tree [ 53.968635][ T5195] BTRFS info (device loop0): has skinny extents [ 53.986828][ T5195] BTRFS info (device loop0): enabling ssd optimizations [ 53.990733][ T5195] FAULT_INJECTION: forcing a failure. [ 53.990733][ T5195] name failslab, interval 1, probability 0, space 0, times 0 [ 53.993138][ T5195] CPU: 1 PID: 5195 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.994584][ T5195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.996216][ T5195] Call trace: [ 53.996780][ T5195] dump_backtrace+0x0/0x458 [ 53.997597][ T5195] show_stack+0x2c/0x3c [ 53.998284][ T5195] __dump_stack+0x30/0x40 [ 53.999001][ T5195] dump_stack_lvl+0xf4/0x15c [ 53.999800][ T5195] dump_stack+0x1c/0x5c [ 54.000488][ T5195] should_fail+0x3bc/0x514 [ 54.001228][ T5195] __should_failslab+0xbc/0x10c [ 54.002101][ T5195] should_failslab+0x10/0x28 [ 54.002841][ T5195] slab_pre_alloc_hook+0x64/0xe8 [ 54.003654][ T5195] kmem_cache_alloc+0x94/0x3d4 [ 54.004473][ T5195] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 54.005446][ T5195] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 54.006392][ T5195] btrfs_insert_replace_extent+0x840/0x9cc [ 54.007233][ T5195] btrfs_replace_file_extents+0x89c/0x1238 [ 54.008158][ T5195] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 54.009096][ T5195] btrfs_prealloc_file_range+0x60/0x7c [ 54.010003][ T5195] btrfs_fallocate+0x1354/0x1638 [ 54.010762][ T5195] vfs_fallocate+0x4a4/0x5f4 [ 54.011515][ T5195] ioctl_preallocate+0x234/0x2dc [ 54.012296][ T5195] do_vfs_ioctl+0x1aa4/0x23f0 [ 54.013077][ T5195] __arm64_sys_ioctl+0xe4/0x1c8 [ 54.013825][ T5195] invoke_syscall+0x98/0x2b0 [ 54.014551][ T5195] el0_svc_common+0x138/0x258 [ 54.015360][ T5195] do_el0_svc+0x58/0x13c [ 54.016062][ T5195] el0_svc+0x78/0x1d0 [ 54.016704][ T5195] el0t_64_sync_handler+0xcc/0xe4 [ 54.017545][ T5195] el0t_64_sync+0x1a0/0x1a4 [ 54.019741][ T5195] ------------[ cut here ]------------ [ 54.020677][ T5195] WARNING: CPU: 1 PID: 5195 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 54.022280][ T5195] Modules linked in: [ 54.022890][ T5195] CPU: 1 PID: 5195 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.024368][ T5195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 54.025977][ T5195] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.027273][ T5195] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 54.028297][ T5195] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 54.029285][ T5195] sp : ffff800020fa71e0 [ 54.029971][ T5195] x29: ffff800020fa7300 x28: dfff800000000000 x27: 0000000000000000 [ 54.031318][ T5195] x26: ffff0000c9f6af00 x25: ffff800020fa74e0 x24: ffff0000e24f13a0 [ 54.032753][ T5195] x23: ffff7000041f4e4c x22: 00000000fffffff4 x21: 1fffe0001bd386e7 [ 54.034061][ T5195] x20: ffff0000de9c36e0 x19: ffff0000de9c3738 x18: 0000000000000001 [ 54.035390][ T5195] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 54.036748][ T5195] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 54.038120][ T5195] x11: 0000000000000000 x10: 0000000000000000 x9 : 271216873de24900 [ 54.039475][ T5195] x8 : 271216873de24900 x7 : 0000000000000001 x6 : 0000000000000001 [ 54.040755][ T5195] x5 : ffff800020fa6af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 54.042006][ T5195] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 54.043281][ T5195] Call trace: [ 54.043846][ T5195] btrfs_replace_file_extents+0xcc4/0x1238 [ 54.044838][ T5195] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 54.045832][ T5195] btrfs_prealloc_file_range+0x60/0x7c [ 54.046763][ T5195] btrfs_fallocate+0x1354/0x1638 [ 54.047619][ T5195] vfs_fallocate+0x4a4/0x5f4 [ 54.048423][ T5195] ioctl_preallocate+0x234/0x2dc [ 54.049288][ T5195] do_vfs_ioctl+0x1aa4/0x23f0 [ 54.050132][ T5195] __arm64_sys_ioctl+0xe4/0x1c8 [ 54.050947][ T5195] invoke_syscall+0x98/0x2b0 [ 54.051700][ T5195] el0_svc_common+0x138/0x258 [ 54.052368][ T5195] do_el0_svc+0x58/0x13c [ 54.052992][ T5195] el0_svc+0x78/0x1d0 [ 54.053637][ T5195] el0t_64_sync_handler+0xcc/0xe4 [ 54.054374][ T5195] el0t_64_sync+0x1a0/0x1a4 [ 54.055053][ T5195] irq event stamp: 78666 [ 54.055655][ T5195] hardirqs last enabled at (78665): [] __up_console_sem+0xb4/0xfc [ 54.057146][ T5195] hardirqs last disabled at (78666): [] el1_dbg+0x24/0x80 [ 54.058503][ T5195] softirqs last enabled at (78644): [] handle_softirqs+0xa40/0xbe4 [ 54.060044][ T5195] softirqs last disabled at (78601): [] __irq_exit_rcu+0x240/0x43c [ 54.061590][ T5195] ---[ end trace 5c6f179f1ab7734f ]--- [ 54.064118][ T5195] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 54.065666][ T5195] BTRFS info (device loop0): forced readonly [ 54.262039][ T5216] loop0: detected capacity change from 0 to 32768 [ 54.264508][ T5216] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5216) [ 54.268759][ T5216] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 54.270337][ T5216] BTRFS info (device loop0): using free space tree [ 54.271483][ T5216] BTRFS info (device loop0): has skinny extents [ 54.284492][ T5216] BTRFS info (device loop0): enabling ssd optimizations [ 54.288029][ T5216] FAULT_INJECTION: forcing a failure. [ 54.288029][ T5216] name failslab, interval 1, probability 0, space 0, times 0 [ 54.290077][ T5216] CPU: 1 PID: 5216 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.291551][ T5216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 54.293269][ T5216] Call trace: [ 54.293795][ T5216] dump_backtrace+0x0/0x458 [ 54.294512][ T5216] show_stack+0x2c/0x3c [ 54.295164][ T5216] __dump_stack+0x30/0x40 [ 54.295868][ T5216] dump_stack_lvl+0xf4/0x15c [ 54.296673][ T5216] dump_stack+0x1c/0x5c [ 54.297367][ T5216] should_fail+0x3bc/0x514 [ 54.298131][ T5216] __should_failslab+0xbc/0x10c [ 54.298905][ T5216] should_failslab+0x10/0x28 [ 54.299709][ T5216] slab_pre_alloc_hook+0x64/0xe8 [ 54.300499][ T5216] kmem_cache_alloc+0x94/0x3d4 [ 54.301301][ T5216] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 54.302200][ T5216] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 54.303174][ T5216] btrfs_insert_replace_extent+0x840/0x9cc [ 54.304130][ T5216] btrfs_replace_file_extents+0x89c/0x1238 [ 54.305086][ T5216] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 54.306011][ T5216] btrfs_prealloc_file_range+0x60/0x7c [ 54.306971][ T5216] btrfs_fallocate+0x1354/0x1638 [ 54.307804][ T5216] vfs_fallocate+0x4a4/0x5f4 [ 54.308552][ T5216] ioctl_preallocate+0x234/0x2dc [ 54.309328][ T5216] do_vfs_ioctl+0x1aa4/0x23f0 [ 54.310103][ T5216] __arm64_sys_ioctl+0xe4/0x1c8 [ 54.310917][ T5216] invoke_syscall+0x98/0x2b0 [ 54.311739][ T5216] el0_svc_common+0x138/0x258 [ 54.312502][ T5216] do_el0_svc+0x58/0x13c [ 54.313179][ T5216] el0_svc+0x78/0x1d0 [ 54.313813][ T5216] el0t_64_sync_handler+0xcc/0xe4 [ 54.314647][ T5216] el0t_64_sync+0x1a0/0x1a4 [ 54.317235][ T5216] ------------[ cut here ]------------ [ 54.318199][ T5216] WARNING: CPU: 1 PID: 5216 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 54.319880][ T5216] Modules linked in: [ 54.320553][ T5216] CPU: 1 PID: 5216 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.322034][ T5216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 54.323651][ T5216] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.324915][ T5216] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 54.325943][ T5216] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 54.326984][ T5216] sp : ffff8000215d71e0 [ 54.327700][ T5216] x29: ffff8000215d7300 x28: dfff800000000000 x27: 0000000000000000 [ 54.328983][ T5216] x26: ffff0000c88b6200 x25: ffff8000215d74e0 x24: ffff0000e24f3110 [ 54.330316][ T5216] x23: ffff7000042bae4c x22: 00000000fffffff4 x21: 1fffe0001ba77421 [ 54.331560][ T5216] x20: ffff0000dd3ba0b0 x19: ffff0000dd3ba108 x18: 0000000000000001 [ 54.332932][ T5216] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 54.334303][ T5216] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 54.335602][ T5216] x11: 0000000000000000 x10: 0000000000000000 x9 : 1f9a6456cc9bbb00 [ 54.336893][ T5216] x8 : 1f9a6456cc9bbb00 x7 : 0000000000000001 x6 : 0000000000000001 [ 54.338172][ T5216] x5 : ffff8000215d6af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 54.339456][ T5216] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 54.340807][ T5216] Call trace: [ 54.341333][ T5216] btrfs_replace_file_extents+0xcc4/0x1238 [ 54.342212][ T5216] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 54.343147][ T5216] btrfs_prealloc_file_range+0x60/0x7c [ 54.344026][ T5216] btrfs_fallocate+0x1354/0x1638 [ 54.344807][ T5216] vfs_fallocate+0x4a4/0x5f4 [ 54.345598][ T5216] ioctl_preallocate+0x234/0x2dc [ 54.346396][ T5216] do_vfs_ioctl+0x1aa4/0x23f0 [ 54.347156][ T5216] __arm64_sys_ioctl+0xe4/0x1c8 [ 54.347954][ T5216] invoke_syscall+0x98/0x2b0 [ 54.348708][ T5216] el0_svc_common+0x138/0x258 [ 54.349465][ T5216] do_el0_svc+0x58/0x13c [ 54.350232][ T5216] el0_svc+0x78/0x1d0 [ 54.350927][ T5216] el0t_64_sync_handler+0xcc/0xe4 [ 54.351768][ T5216] el0t_64_sync+0x1a0/0x1a4 [ 54.352495][ T5216] irq event stamp: 78936 [ 54.353143][ T5216] hardirqs last enabled at (78935): [] __up_console_sem+0xb4/0xfc [ 54.354644][ T5216] hardirqs last disabled at (78936): [] el1_dbg+0x24/0x80 [ 54.356133][ T5216] softirqs last enabled at (78914): [] handle_softirqs+0xa40/0xbe4 [ 54.357597][ T5216] softirqs last disabled at (78851): [] __irq_exit_rcu+0x240/0x43c [ 54.359135][ T5216] ---[ end trace 5c6f179f1ab77350 ]--- [ 54.360518][ T5216] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 54.362374][ T5216] BTRFS info (device loop0): forced readonly [ 54.524186][ T5237] loop0: detected capacity change from 0 to 32768 [ 54.526584][ T5237] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5237) [ 54.531522][ T5237] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 54.533792][ T5237] BTRFS info (device loop0): using free space tree [ 54.535085][ T5237] BTRFS info (device loop0): has skinny extents [ 54.561970][ T5237] BTRFS info (device loop0): enabling ssd optimizations [ 54.565195][ T5237] FAULT_INJECTION: forcing a failure. [ 54.565195][ T5237] name failslab, interval 1, probability 0, space 0, times 0 [ 54.567202][ T5237] CPU: 1 PID: 5237 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.568831][ T5237] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 54.570338][ T5237] Call trace: [ 54.570836][ T5237] dump_backtrace+0x0/0x458 [ 54.571535][ T5237] show_stack+0x2c/0x3c [ 54.572161][ T5237] __dump_stack+0x30/0x40 [ 54.572839][ T5237] dump_stack_lvl+0xf4/0x15c [ 54.573595][ T5237] dump_stack+0x1c/0x5c [ 54.574273][ T5237] should_fail+0x3bc/0x514 [ 54.575009][ T5237] __should_failslab+0xbc/0x10c [ 54.575786][ T5237] should_failslab+0x10/0x28 [ 54.576532][ T5237] slab_pre_alloc_hook+0x64/0xe8 [ 54.577322][ T5237] kmem_cache_alloc+0x94/0x3d4 [ 54.578100][ T5237] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 54.579095][ T5237] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 54.580124][ T5237] btrfs_insert_replace_extent+0x840/0x9cc [ 54.581152][ T5237] btrfs_replace_file_extents+0x89c/0x1238 [ 54.582111][ T5237] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 54.583017][ T5237] btrfs_prealloc_file_range+0x60/0x7c [ 54.583889][ T5237] btrfs_fallocate+0x1354/0x1638 [ 54.584632][ T5237] vfs_fallocate+0x4a4/0x5f4 [ 54.585324][ T5237] ioctl_preallocate+0x234/0x2dc [ 54.586182][ T5237] do_vfs_ioctl+0x1aa4/0x23f0 [ 54.586948][ T5237] __arm64_sys_ioctl+0xe4/0x1c8 [ 54.587722][ T5237] invoke_syscall+0x98/0x2b0 [ 54.588454][ T5237] el0_svc_common+0x138/0x258 [ 54.589173][ T5237] do_el0_svc+0x58/0x13c [ 54.589843][ T5237] el0_svc+0x78/0x1d0 [ 54.590523][ T5237] el0t_64_sync_handler+0xcc/0xe4 [ 54.591284][ T5237] el0t_64_sync+0x1a0/0x1a4 [ 54.611843][ T5237] ------------[ cut here ]------------ [ 54.612931][ T5237] WARNING: CPU: 0 PID: 5237 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 54.614571][ T5237] Modules linked in: [ 54.615226][ T5237] CPU: 0 PID: 5237 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.616738][ T5237] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 54.618472][ T5237] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.619847][ T5237] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 54.620903][ T5237] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 54.621980][ T5237] sp : ffff8000215f71e0 [ 54.622569][ T5237] x29: ffff8000215f7300 x28: dfff800000000000 x27: 0000000000000000 [ 54.623889][ T5237] x26: ffff0000c2a77b00 x25: ffff8000215f74e0 x24: ffff0000e24f4e80 [ 54.625170][ T5237] x23: ffff7000042bee4c x22: 00000000fffffff4 x21: 1fffe0001ba7744d [ 54.626531][ T5237] x20: ffff0000dd3ba210 x19: ffff0000dd3ba268 x18: 0000000000000001 [ 54.627909][ T5237] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 54.629299][ T5237] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 54.630685][ T5237] x11: 0000000000000000 x10: 0000000000000000 x9 : 4a238ad238c68400 [ 54.632080][ T5237] x8 : 4a238ad238c68400 x7 : 0000000000000001 x6 : 0000000000000001 [ 54.633482][ T5237] x5 : ffff8000215f6af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 54.634893][ T5237] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 54.636239][ T5237] Call trace: [ 54.636758][ T5237] btrfs_replace_file_extents+0xcc4/0x1238 [ 54.637771][ T5237] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 54.638728][ T5237] btrfs_prealloc_file_range+0x60/0x7c [ 54.639575][ T5237] btrfs_fallocate+0x1354/0x1638 [ 54.640332][ T5237] vfs_fallocate+0x4a4/0x5f4 [ 54.640986][ T5237] ioctl_preallocate+0x234/0x2dc [ 54.641688][ T5237] do_vfs_ioctl+0x1aa4/0x23f0 [ 54.642376][ T5237] __arm64_sys_ioctl+0xe4/0x1c8 [ 54.643097][ T5237] invoke_syscall+0x98/0x2b0 [ 54.643775][ T5237] el0_svc_common+0x138/0x258 [ 54.644529][ T5237] do_el0_svc+0x58/0x13c [ 54.645196][ T5237] el0_svc+0x78/0x1d0 [ 54.645794][ T5237] el0t_64_sync_handler+0xcc/0xe4 [ 54.646605][ T5237] el0t_64_sync+0x1a0/0x1a4 [ 54.647264][ T5237] irq event stamp: 78892 [ 54.647989][ T5237] hardirqs last enabled at (78891): [] __up_console_sem+0xb4/0xfc [ 54.649570][ T5237] hardirqs last disabled at (78892): [] el1_dbg+0x24/0x80 [ 54.650988][ T5237] softirqs last enabled at (78866): [] handle_softirqs+0xa40/0xbe4 [ 54.652448][ T5237] softirqs last disabled at (78829): [] __irq_exit_rcu+0x240/0x43c [ 54.653972][ T5237] ---[ end trace 5c6f179f1ab77351 ]--- [ 54.655582][ T5237] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 54.657066][ T5237] BTRFS info (device loop0): forced readonly [ 54.845792][ T5258] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5258) [ 54.849366][ T5258] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 54.850790][ T5258] BTRFS info (device loop0): using free space tree [ 54.852090][ T5258] BTRFS info (device loop0): has skinny extents [ 54.865762][ T5258] BTRFS info (device loop0): enabling ssd optimizations [ 54.869624][ T5258] FAULT_INJECTION: forcing a failure. [ 54.869624][ T5258] name failslab, interval 1, probability 0, space 0, times 0 [ 54.872061][ T5258] CPU: 0 PID: 5258 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.873502][ T5258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 54.875034][ T5258] Call trace: [ 54.875503][ T5258] dump_backtrace+0x0/0x458 [ 54.876254][ T5258] show_stack+0x2c/0x3c [ 54.876880][ T5258] __dump_stack+0x30/0x40 [ 54.877558][ T5258] dump_stack_lvl+0xf4/0x15c [ 54.878290][ T5258] dump_stack+0x1c/0x5c [ 54.878962][ T5258] should_fail+0x3bc/0x514 [ 54.879639][ T5258] __should_failslab+0xbc/0x10c [ 54.880359][ T5258] should_failslab+0x10/0x28 [ 54.881076][ T5258] slab_pre_alloc_hook+0x64/0xe8 [ 54.881926][ T5258] kmem_cache_alloc+0x94/0x3d4 [ 54.882715][ T5258] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 54.883687][ T5258] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 54.884792][ T5258] btrfs_insert_replace_extent+0x840/0x9cc [ 54.885799][ T5258] btrfs_replace_file_extents+0x89c/0x1238 [ 54.886775][ T5258] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 54.887678][ T5258] btrfs_prealloc_file_range+0x60/0x7c [ 54.888544][ T5258] btrfs_fallocate+0x1354/0x1638 [ 54.889341][ T5258] vfs_fallocate+0x4a4/0x5f4 [ 54.890104][ T5258] ioctl_preallocate+0x234/0x2dc [ 54.890840][ T5258] do_vfs_ioctl+0x1aa4/0x23f0 [ 54.891551][ T5258] __arm64_sys_ioctl+0xe4/0x1c8 [ 54.892323][ T5258] invoke_syscall+0x98/0x2b0 [ 54.893044][ T5258] el0_svc_common+0x138/0x258 [ 54.893787][ T5258] do_el0_svc+0x58/0x13c [ 54.894440][ T5258] el0_svc+0x78/0x1d0 [ 54.895072][ T5258] el0t_64_sync_handler+0xcc/0xe4 [ 54.895855][ T5258] el0t_64_sync+0x1a0/0x1a4 [ 54.896736][ T5258] ------------[ cut here ]------------ [ 54.898166][ T5258] WARNING: CPU: 0 PID: 5258 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 54.899592][ T5258] Modules linked in: [ 54.900164][ T5258] CPU: 0 PID: 5258 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.901443][ T5258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 54.903141][ T5258] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.904522][ T5258] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 54.905597][ T5258] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 54.906659][ T5258] sp : ffff8000217b71e0 [ 54.907361][ T5258] x29: ffff8000217b7300 x28: dfff800000000000 x27: 0000000000000000 [ 54.908673][ T5258] x26: ffff0000cf248900 x25: ffff8000217b74e0 x24: ffff0000e24f6bf0 [ 54.910058][ T5258] x23: ffff7000042f6e4c x22: 00000000fffffff4 x21: 1fffe0001bd48e79 [ 54.911455][ T5258] x20: ffff0000dea47370 x19: ffff0000dea473c8 x18: 0000000000000001 [ 54.912817][ T5258] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 54.914147][ T5258] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 54.915508][ T5258] x11: 0000000000000000 x10: 0000000000000000 x9 : 981613ac023e3e00 [ 54.916838][ T5258] x8 : 981613ac023e3e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 54.918139][ T5258] x5 : ffff8000217b6af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 54.919481][ T5258] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 54.920799][ T5258] Call trace: [ 54.921367][ T5258] btrfs_replace_file_extents+0xcc4/0x1238 [ 54.922322][ T5258] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 54.923321][ T5258] btrfs_prealloc_file_range+0x60/0x7c [ 54.924242][ T5258] btrfs_fallocate+0x1354/0x1638 [ 54.925080][ T5258] vfs_fallocate+0x4a4/0x5f4 [ 54.925891][ T5258] ioctl_preallocate+0x234/0x2dc [ 54.926749][ T5258] do_vfs_ioctl+0x1aa4/0x23f0 [ 54.927553][ T5258] __arm64_sys_ioctl+0xe4/0x1c8 [ 54.928342][ T5258] invoke_syscall+0x98/0x2b0 [ 54.929068][ T5258] el0_svc_common+0x138/0x258 [ 54.929799][ T5258] do_el0_svc+0x58/0x13c [ 54.930433][ T5258] el0_svc+0x78/0x1d0 [ 54.931077][ T5258] el0t_64_sync_handler+0xcc/0xe4 [ 54.931851][ T5258] el0t_64_sync+0x1a0/0x1a4 [ 54.932548][ T5258] irq event stamp: 78664 [ 54.933262][ T5258] hardirqs last enabled at (78663): [] __up_console_sem+0xb4/0xfc [ 54.934968][ T5258] hardirqs last disabled at (78664): [] el1_dbg+0x24/0x80 [ 54.936463][ T5258] softirqs last enabled at (78638): [] handle_softirqs+0xa40/0xbe4 [ 54.937990][ T5258] softirqs last disabled at (78625): [] __irq_exit_rcu+0x240/0x43c [ 54.939472][ T5258] ---[ end trace 5c6f179f1ab77352 ]--- [ 54.940471][ T5258] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 54.942985][ T5258] BTRFS info (device loop0): forced readonly [ 55.130081][ T5279] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5279) [ 55.133747][ T5279] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 55.135191][ T5279] BTRFS info (device loop0): using free space tree [ 55.136205][ T5279] BTRFS info (device loop0): has skinny extents [ 55.148701][ T5279] BTRFS info (device loop0): enabling ssd optimizations [ 55.152199][ T5279] FAULT_INJECTION: forcing a failure. [ 55.152199][ T5279] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 55.154376][ T5279] CPU: 1 PID: 5279 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.155807][ T5279] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.157399][ T5279] Call trace: [ 55.157917][ T5279] dump_backtrace+0x0/0x458 [ 55.158625][ T5279] show_stack+0x2c/0x3c [ 55.159292][ T5279] __dump_stack+0x30/0x40 [ 55.159940][ T5279] dump_stack_lvl+0xf4/0x15c [ 55.160611][ T5279] dump_stack+0x1c/0x5c [ 55.161253][ T5279] should_fail+0x3bc/0x514 [ 55.161954][ T5279] should_fail_alloc_page+0x74/0xa8 [ 55.162700][ T5279] prepare_alloc_pages+0x160/0x45c [ 55.163469][ T5279] __alloc_pages+0x108/0x470 [ 55.164200][ T5279] alloc_pages+0x34c/0x5c0 [ 55.164941][ T5279] new_slab+0xe0/0x544 [ 55.165570][ T5279] ___slab_alloc+0x6b4/0xd8c [ 55.166324][ T5279] __slab_alloc+0x68/0xc0 [ 55.167019][ T5279] kmem_cache_alloc+0x2a4/0x3d4 [ 55.167844][ T5279] alloc_extent_map+0x28/0x128 [ 55.168674][ T5279] btrfs_drop_extent_cache+0x164/0xd90 [ 55.169602][ T5279] btrfs_drop_extents+0x2e8/0x2254 [ 55.170447][ T5279] btrfs_replace_file_extents+0x338/0x1238 [ 55.171431][ T5279] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 55.172414][ T5279] btrfs_prealloc_file_range+0x60/0x7c [ 55.173269][ T5279] btrfs_fallocate+0x1354/0x1638 [ 55.174085][ T5279] vfs_fallocate+0x4a4/0x5f4 [ 55.174798][ T5279] ioctl_preallocate+0x234/0x2dc [ 55.175641][ T5279] do_vfs_ioctl+0x1aa4/0x23f0 [ 55.176396][ T5279] __arm64_sys_ioctl+0xe4/0x1c8 [ 55.177188][ T5279] invoke_syscall+0x98/0x2b0 [ 55.177965][ T5279] el0_svc_common+0x138/0x258 [ 55.178748][ T5279] do_el0_svc+0x58/0x13c [ 55.179414][ T5279] el0_svc+0x78/0x1d0 [ 55.180073][ T5279] el0t_64_sync_handler+0xcc/0xe4 [ 55.180825][ T5279] el0t_64_sync+0x1a0/0x1a4 [ 55.362586][ T5300] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5300) [ 55.372884][ T5300] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 55.374369][ T5300] BTRFS info (device loop0): using free space tree [ 55.375481][ T5300] BTRFS info (device loop0): has skinny extents [ 55.383098][ T5300] BTRFS info (device loop0): enabling ssd optimizations [ 55.386551][ T5300] FAULT_INJECTION: forcing a failure. [ 55.386551][ T5300] name failslab, interval 1, probability 0, space 0, times 0 [ 55.388485][ T5300] CPU: 1 PID: 5300 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.389980][ T5300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.391617][ T5300] Call trace: [ 55.392112][ T5300] dump_backtrace+0x0/0x458 [ 55.392768][ T5300] show_stack+0x2c/0x3c [ 55.393377][ T5300] __dump_stack+0x30/0x40 [ 55.394085][ T5300] dump_stack_lvl+0xf4/0x15c [ 55.394864][ T5300] dump_stack+0x1c/0x5c [ 55.395565][ T5300] should_fail+0x3bc/0x514 [ 55.396272][ T5300] __should_failslab+0xbc/0x10c [ 55.397057][ T5300] should_failslab+0x10/0x28 [ 55.397789][ T5300] slab_pre_alloc_hook+0x64/0xe8 [ 55.398549][ T5300] kmem_cache_alloc+0x94/0x3d4 [ 55.399323][ T5300] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 55.400318][ T5300] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 55.401335][ T5300] btrfs_insert_replace_extent+0x840/0x9cc [ 55.402206][ T5300] btrfs_replace_file_extents+0x89c/0x1238 [ 55.403094][ T5300] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 55.404004][ T5300] btrfs_prealloc_file_range+0x60/0x7c [ 55.404863][ T5300] btrfs_fallocate+0x1354/0x1638 [ 55.405634][ T5300] vfs_fallocate+0x4a4/0x5f4 [ 55.406383][ T5300] ioctl_preallocate+0x234/0x2dc [ 55.407247][ T5300] do_vfs_ioctl+0x1aa4/0x23f0 [ 55.408016][ T5300] __arm64_sys_ioctl+0xe4/0x1c8 [ 55.408786][ T5300] invoke_syscall+0x98/0x2b0 [ 55.409566][ T5300] el0_svc_common+0x138/0x258 [ 55.410319][ T5300] do_el0_svc+0x58/0x13c [ 55.411017][ T5300] el0_svc+0x78/0x1d0 [ 55.411629][ T5300] el0t_64_sync_handler+0xcc/0xe4 [ 55.412496][ T5300] el0t_64_sync+0x1a0/0x1a4 [ 55.413422][ T5300] ------------[ cut here ]------------ [ 55.414403][ T5300] WARNING: CPU: 1 PID: 5300 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 55.415921][ T5300] Modules linked in: [ 55.416538][ T5300] CPU: 1 PID: 5300 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.418055][ T5300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.419625][ T5300] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.420864][ T5300] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 55.421845][ T5300] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 55.422833][ T5300] sp : ffff800021a671e0 [ 55.423513][ T5300] x29: ffff800021a67300 x28: dfff800000000000 x27: 0000000000000000 [ 55.424849][ T5300] x26: ffff0000ccb54200 x25: ffff800021a674e0 x24: ffff0000dea60000 [ 55.426179][ T5300] x23: ffff70000434ce4c x22: 00000000fffffff4 x21: 1fffe0001ba774fd [ 55.427476][ T5300] x20: ffff0000dd3ba790 x19: ffff0000dd3ba7e8 x18: 0000000000000001 [ 55.428815][ T5300] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 55.430046][ T5300] x14: 0000000000000001 x13: 1ffff0000434cd5c x12: 0000000000ff0100 [ 55.431425][ T5300] x11: 0000000000000000 x10: 0000000000000000 x9 : 1df3caa2a7906800 [ 55.432694][ T5300] x8 : 1df3caa2a7906800 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.434005][ T5300] x5 : ffff800021a66af8 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 55.435205][ T5300] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.436530][ T5300] Call trace: [ 55.437060][ T5300] btrfs_replace_file_extents+0xcc4/0x1238 [ 55.438020][ T5300] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 55.438999][ T5300] btrfs_prealloc_file_range+0x60/0x7c [ 55.439909][ T5300] btrfs_fallocate+0x1354/0x1638 [ 55.440694][ T5300] vfs_fallocate+0x4a4/0x5f4 [ 55.441436][ T5300] ioctl_preallocate+0x234/0x2dc [ 55.442256][ T5300] do_vfs_ioctl+0x1aa4/0x23f0 [ 55.442994][ T5300] __arm64_sys_ioctl+0xe4/0x1c8 [ 55.443801][ T5300] invoke_syscall+0x98/0x2b0 [ 55.444534][ T5300] el0_svc_common+0x138/0x258 [ 55.445278][ T5300] do_el0_svc+0x58/0x13c [ 55.446007][ T5300] el0_svc+0x78/0x1d0 [ 55.446647][ T5300] el0t_64_sync_handler+0xcc/0xe4 [ 55.447512][ T5300] el0t_64_sync+0x1a0/0x1a4 [ 55.448257][ T5300] irq event stamp: 78786 [ 55.449022][ T5300] hardirqs last enabled at (78785): [] __up_console_sem+0xb4/0xfc [ 55.450635][ T5300] hardirqs last disabled at (78786): [] el1_dbg+0x24/0x80 [ 55.452104][ T5300] softirqs last enabled at (78764): [] handle_softirqs+0xa40/0xbe4 [ 55.453610][ T5300] softirqs last disabled at (78721): [] __irq_exit_rcu+0x240/0x43c [ 55.455135][ T5300] ---[ end trace 5c6f179f1ab77353 ]--- [ 55.456287][ T5300] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 55.457847][ T5300] BTRFS info (device loop0): forced readonly [ 55.629936][ T5321] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5321) [ 55.633545][ T5321] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 55.635208][ T5321] BTRFS info (device loop0): using free space tree [ 55.636379][ T5321] BTRFS info (device loop0): has skinny extents [ 55.647525][ T5321] BTRFS info (device loop0): enabling ssd optimizations [ 55.651152][ T5321] FAULT_INJECTION: forcing a failure. [ 55.651152][ T5321] name failslab, interval 1, probability 0, space 0, times 0 [ 55.653272][ T5321] CPU: 1 PID: 5321 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.654713][ T5321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.656405][ T5321] Call trace: [ 55.656935][ T5321] dump_backtrace+0x0/0x458 [ 55.657678][ T5321] show_stack+0x2c/0x3c [ 55.658310][ T5321] __dump_stack+0x30/0x40 [ 55.659023][ T5321] dump_stack_lvl+0xf4/0x15c [ 55.659753][ T5321] dump_stack+0x1c/0x5c [ 55.660383][ T5321] should_fail+0x3bc/0x514 [ 55.661087][ T5321] __should_failslab+0xbc/0x10c [ 55.661882][ T5321] should_failslab+0x10/0x28 [ 55.662626][ T5321] slab_pre_alloc_hook+0x64/0xe8 [ 55.663467][ T5321] kmem_cache_alloc+0x94/0x3d4 [ 55.664246][ T5321] btrfs_add_delayed_data_ref+0x160/0xd08 [ 55.665221][ T5321] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 55.666312][ T5321] btrfs_insert_replace_extent+0x840/0x9cc [ 55.667269][ T5321] btrfs_replace_file_extents+0x89c/0x1238 [ 55.668212][ T5321] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 55.669163][ T5321] btrfs_prealloc_file_range+0x60/0x7c [ 55.670074][ T5321] btrfs_fallocate+0x1354/0x1638 [ 55.670959][ T5321] vfs_fallocate+0x4a4/0x5f4 [ 55.671746][ T5321] ioctl_preallocate+0x234/0x2dc [ 55.672593][ T5321] do_vfs_ioctl+0x1aa4/0x23f0 [ 55.673419][ T5321] __arm64_sys_ioctl+0xe4/0x1c8 [ 55.674232][ T5321] invoke_syscall+0x98/0x2b0 [ 55.674952][ T5321] el0_svc_common+0x138/0x258 [ 55.675761][ T5321] do_el0_svc+0x58/0x13c [ 55.676490][ T5321] el0_svc+0x78/0x1d0 [ 55.677109][ T5321] el0t_64_sync_handler+0xcc/0xe4 [ 55.677924][ T5321] el0t_64_sync+0x1a0/0x1a4 [ 55.678850][ T5321] ------------[ cut here ]------------ [ 55.679817][ T5321] WARNING: CPU: 1 PID: 5321 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 55.681400][ T5321] Modules linked in: [ 55.681991][ T5321] CPU: 1 PID: 5321 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.683434][ T5321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.685119][ T5321] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.686431][ T5321] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 55.687495][ T5321] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 55.688452][ T5321] sp : ffff8000215d71e0 [ 55.689083][ T5321] x29: ffff8000215d7300 x28: dfff800000000000 x27: 0000000000000000 [ 55.690333][ T5321] x26: ffff0000cb698300 x25: ffff8000215d74e0 x24: ffff0000dea61d70 [ 55.691709][ T5321] x23: ffff7000042bae4c x22: 00000000fffffff4 x21: 1fffe0001ba77529 [ 55.693020][ T5321] x20: ffff0000dd3ba8f0 x19: ffff0000dd3ba948 x18: 0000000000000001 [ 55.694351][ T5321] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 55.695658][ T5321] x14: 0000000000000001 x13: 1ffff000042bad5c x12: 0000000000ff0100 [ 55.696918][ T5321] x11: 0000000000000000 x10: 0000000000000000 x9 : d2c8897e1f6af900 [ 55.698206][ T5321] x8 : d2c8897e1f6af900 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.699448][ T5321] x5 : ffff8000215d6af8 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 55.700712][ T5321] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.701947][ T5321] Call trace: [ 55.702467][ T5321] btrfs_replace_file_extents+0xcc4/0x1238 [ 55.703355][ T5321] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 55.704189][ T5321] btrfs_prealloc_file_range+0x60/0x7c [ 55.704963][ T5321] btrfs_fallocate+0x1354/0x1638 [ 55.705677][ T5321] vfs_fallocate+0x4a4/0x5f4 [ 55.706379][ T5321] ioctl_preallocate+0x234/0x2dc [ 55.707097][ T5321] do_vfs_ioctl+0x1aa4/0x23f0 [ 55.707787][ T5321] __arm64_sys_ioctl+0xe4/0x1c8 [ 55.708492][ T5321] invoke_syscall+0x98/0x2b0 [ 55.709179][ T5321] el0_svc_common+0x138/0x258 [ 55.709878][ T5321] do_el0_svc+0x58/0x13c [ 55.710512][ T5321] el0_svc+0x78/0x1d0 [ 55.711094][ T5321] el0t_64_sync_handler+0xcc/0xe4 [ 55.711794][ T5321] el0t_64_sync+0x1a0/0x1a4 [ 55.712462][ T5321] irq event stamp: 78832 [ 55.713052][ T5321] hardirqs last enabled at (78831): [] __up_console_sem+0xb4/0xfc [ 55.714418][ T5321] hardirqs last disabled at (78832): [] el1_dbg+0x24/0x80 [ 55.715902][ T5321] softirqs last enabled at (78812): [] handle_softirqs+0xa40/0xbe4 [ 55.717455][ T5321] softirqs last disabled at (78789): [] __irq_exit_rcu+0x240/0x43c [ 55.719013][ T5321] ---[ end trace 5c6f179f1ab77354 ]--- [ 55.720176][ T5321] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 55.721884][ T5321] BTRFS info (device loop0): forced readonly 1970/01/01 00:00:55 executed programs: 31 [ 55.912514][ T5342] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5342) [ 55.915746][ T5342] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 55.917220][ T5342] BTRFS info (device loop0): using free space tree [ 55.918341][ T5342] BTRFS info (device loop0): has skinny extents [ 55.935727][ T5342] BTRFS info (device loop0): enabling ssd optimizations [ 55.939565][ T5342] FAULT_INJECTION: forcing a failure. [ 55.939565][ T5342] name failslab, interval 1, probability 0, space 0, times 0 [ 55.941584][ T5342] CPU: 1 PID: 5342 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.943209][ T5342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.944924][ T5342] Call trace: [ 55.945481][ T5342] dump_backtrace+0x0/0x458 [ 55.946183][ T5342] show_stack+0x2c/0x3c [ 55.946845][ T5342] __dump_stack+0x30/0x40 [ 55.947569][ T5342] dump_stack_lvl+0xf4/0x15c [ 55.948387][ T5342] dump_stack+0x1c/0x5c [ 55.949062][ T5342] should_fail+0x3bc/0x514 [ 55.949781][ T5342] __should_failslab+0xbc/0x10c [ 55.950585][ T5342] should_failslab+0x10/0x28 [ 55.951332][ T5342] slab_pre_alloc_hook+0x64/0xe8 [ 55.952139][ T5342] kmem_cache_alloc+0x94/0x3d4 [ 55.952925][ T5342] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 55.953883][ T5342] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 55.954901][ T5342] btrfs_insert_replace_extent+0x840/0x9cc [ 55.955873][ T5342] btrfs_replace_file_extents+0x89c/0x1238 [ 55.956743][ T5342] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 55.957574][ T5342] btrfs_prealloc_file_range+0x60/0x7c [ 55.958356][ T5342] btrfs_fallocate+0x1354/0x1638 [ 55.959091][ T5342] vfs_fallocate+0x4a4/0x5f4 [ 55.959848][ T5342] ioctl_preallocate+0x234/0x2dc [ 55.960582][ T5342] do_vfs_ioctl+0x1aa4/0x23f0 [ 55.961276][ T5342] __arm64_sys_ioctl+0xe4/0x1c8 [ 55.962044][ T5342] invoke_syscall+0x98/0x2b0 [ 55.962781][ T5342] el0_svc_common+0x138/0x258 [ 55.963500][ T5342] do_el0_svc+0x58/0x13c [ 55.964176][ T5342] el0_svc+0x78/0x1d0 [ 55.964842][ T5342] el0t_64_sync_handler+0xcc/0xe4 [ 55.965650][ T5342] el0t_64_sync+0x1a0/0x1a4 [ 55.967175][ T5342] ------------[ cut here ]------------ [ 55.968108][ T5342] WARNING: CPU: 1 PID: 5342 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 55.969731][ T5342] Modules linked in: [ 55.970333][ T5342] CPU: 1 PID: 5342 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.971694][ T5342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.973317][ T5342] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.974531][ T5342] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 55.975472][ T5342] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 55.976529][ T5342] sp : ffff800021a571e0 [ 55.977196][ T5342] x29: ffff800021a57300 x28: dfff800000000000 x27: 0000000000000000 [ 55.978528][ T5342] x26: ffff0000c2356000 x25: ffff800021a574e0 x24: ffff0000dea63110 [ 55.979776][ T5342] x23: ffff70000434ae4c x22: 00000000fffffff4 x21: 1fffe0001ba77555 [ 55.981076][ T5342] x20: ffff0000dd3baa50 x19: ffff0000dd3baaa8 x18: 0000000000000001 [ 55.982380][ T5342] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 55.983703][ T5342] x14: 0000000000000001 x13: 1ffff0000434ad5c x12: 0000000000ff0100 [ 55.984936][ T5342] x11: 0000000000000000 x10: 0000000000000000 x9 : 7aeb6254a1a86d00 [ 55.986278][ T5342] x8 : 7aeb6254a1a86d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.987542][ T5342] x5 : ffff800021a56af8 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 55.988847][ T5342] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.990276][ T5342] Call trace: [ 55.990811][ T5342] btrfs_replace_file_extents+0xcc4/0x1238 [ 55.991773][ T5342] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 55.992745][ T5342] btrfs_prealloc_file_range+0x60/0x7c [ 55.993637][ T5342] btrfs_fallocate+0x1354/0x1638 [ 55.994377][ T5342] vfs_fallocate+0x4a4/0x5f4 [ 55.995130][ T5342] ioctl_preallocate+0x234/0x2dc [ 55.995939][ T5342] do_vfs_ioctl+0x1aa4/0x23f0 [ 55.996709][ T5342] __arm64_sys_ioctl+0xe4/0x1c8 [ 55.997522][ T5342] invoke_syscall+0x98/0x2b0 [ 55.998277][ T5342] el0_svc_common+0x138/0x258 [ 55.999053][ T5342] do_el0_svc+0x58/0x13c [ 55.999720][ T5342] el0_svc+0x78/0x1d0 [ 56.000352][ T5342] el0t_64_sync_handler+0xcc/0xe4 [ 56.001152][ T5342] el0t_64_sync+0x1a0/0x1a4 [ 56.001874][ T5342] irq event stamp: 78922 [ 56.002531][ T5342] hardirqs last enabled at (78921): [] __up_console_sem+0xb4/0xfc [ 56.004118][ T5342] hardirqs last disabled at (78922): [] el1_dbg+0x24/0x80 [ 56.005530][ T5342] softirqs last enabled at (78900): [] handle_softirqs+0xa40/0xbe4 [ 56.007025][ T5342] softirqs last disabled at (78867): [] __irq_exit_rcu+0x240/0x43c [ 56.008595][ T5342] ---[ end trace 5c6f179f1ab77355 ]--- [ 56.010259][ T5342] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 56.016460][ T5342] BTRFS info (device loop0): forced readonly [ 56.194005][ T5363] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5363) [ 56.204674][ T5363] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 56.206085][ T5363] BTRFS info (device loop0): using free space tree [ 56.207113][ T5363] BTRFS info (device loop0): has skinny extents [ 56.228066][ T5363] BTRFS info (device loop0): enabling ssd optimizations [ 56.233415][ T5363] FAULT_INJECTION: forcing a failure. [ 56.233415][ T5363] name failslab, interval 1, probability 0, space 0, times 0 [ 56.235708][ T5363] CPU: 1 PID: 5363 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.237098][ T5363] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 56.238692][ T5363] Call trace: [ 56.239219][ T5363] dump_backtrace+0x0/0x458 [ 56.239986][ T5363] show_stack+0x2c/0x3c [ 56.240710][ T5363] __dump_stack+0x30/0x40 [ 56.241389][ T5363] dump_stack_lvl+0xf4/0x15c [ 56.242114][ T5363] dump_stack+0x1c/0x5c [ 56.242711][ T5363] should_fail+0x3bc/0x514 [ 56.243414][ T5363] __should_failslab+0xbc/0x10c [ 56.244138][ T5363] should_failslab+0x10/0x28 [ 56.244828][ T5363] slab_pre_alloc_hook+0x64/0xe8 [ 56.245619][ T5363] kmem_cache_alloc+0x94/0x3d4 [ 56.246372][ T5363] alloc_extent_map+0x28/0x128 [ 56.247120][ T5363] btrfs_drop_extent_cache+0x164/0xd90 [ 56.247954][ T5363] btrfs_drop_extents+0x2e8/0x2254 [ 56.248699][ T5363] btrfs_replace_file_extents+0x338/0x1238 [ 56.249587][ T5363] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 56.250452][ T5363] btrfs_prealloc_file_range+0x60/0x7c [ 56.251295][ T5363] btrfs_fallocate+0x1354/0x1638 [ 56.252037][ T5363] vfs_fallocate+0x4a4/0x5f4 [ 56.252764][ T5363] ioctl_preallocate+0x234/0x2dc [ 56.253557][ T5363] do_vfs_ioctl+0x1aa4/0x23f0 [ 56.254327][ T5363] __arm64_sys_ioctl+0xe4/0x1c8 [ 56.255107][ T5363] invoke_syscall+0x98/0x2b0 [ 56.255855][ T5363] el0_svc_common+0x138/0x258 [ 56.256607][ T5363] do_el0_svc+0x58/0x13c [ 56.257319][ T5363] el0_svc+0x78/0x1d0 [ 56.258038][ T5363] el0t_64_sync_handler+0xcc/0xe4 [ 56.258847][ T5363] el0t_64_sync+0x1a0/0x1a4 [ 56.440958][ T5384] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5384) [ 56.445024][ T5384] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 56.446544][ T5384] BTRFS info (device loop0): using free space tree [ 56.447555][ T5384] BTRFS info (device loop0): has skinny extents [ 56.456567][ T5384] BTRFS info (device loop0): enabling ssd optimizations [ 56.460652][ T5384] FAULT_INJECTION: forcing a failure. [ 56.460652][ T5384] name failslab, interval 1, probability 0, space 0, times 0 [ 56.462960][ T5384] CPU: 1 PID: 5384 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.464253][ T5384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 56.465909][ T5384] Call trace: [ 56.466457][ T5384] dump_backtrace+0x0/0x458 [ 56.467231][ T5384] show_stack+0x2c/0x3c [ 56.467913][ T5384] __dump_stack+0x30/0x40 [ 56.468567][ T5384] dump_stack_lvl+0xf4/0x15c [ 56.469269][ T5384] dump_stack+0x1c/0x5c [ 56.469900][ T5384] should_fail+0x3bc/0x514 [ 56.470597][ T5384] __should_failslab+0xbc/0x10c [ 56.471356][ T5384] should_failslab+0x10/0x28 [ 56.472036][ T5384] slab_pre_alloc_hook+0x64/0xe8 [ 56.472783][ T5384] kmem_cache_alloc+0x94/0x3d4 [ 56.473606][ T5384] btrfs_add_delayed_data_ref+0x160/0xd08 [ 56.474498][ T5384] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 56.475477][ T5384] btrfs_insert_replace_extent+0x840/0x9cc [ 56.476416][ T5384] btrfs_replace_file_extents+0x89c/0x1238 [ 56.477399][ T5384] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 56.478327][ T5384] btrfs_prealloc_file_range+0x60/0x7c [ 56.479255][ T5384] btrfs_fallocate+0x1354/0x1638 [ 56.480050][ T5384] vfs_fallocate+0x4a4/0x5f4 [ 56.480712][ T5384] ioctl_preallocate+0x234/0x2dc [ 56.481448][ T5384] do_vfs_ioctl+0x1aa4/0x23f0 [ 56.482177][ T5384] __arm64_sys_ioctl+0xe4/0x1c8 [ 56.482951][ T5384] invoke_syscall+0x98/0x2b0 [ 56.483656][ T5384] el0_svc_common+0x138/0x258 [ 56.484397][ T5384] do_el0_svc+0x58/0x13c [ 56.485072][ T5384] el0_svc+0x78/0x1d0 [ 56.485733][ T5384] el0t_64_sync_handler+0xcc/0xe4 [ 56.486639][ T5384] el0t_64_sync+0x1a0/0x1a4 [ 56.488313][ T5384] ------------[ cut here ]------------ [ 56.489223][ T5384] WARNING: CPU: 1 PID: 5384 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 56.490862][ T5384] Modules linked in: [ 56.491580][ T5384] CPU: 1 PID: 5384 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.493169][ T5384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 56.494869][ T5384] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.496174][ T5384] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 56.497212][ T5384] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 56.498165][ T5384] sp : ffff8000215d71e0 [ 56.498846][ T5384] x29: ffff8000215d7300 x28: dfff800000000000 x27: 0000000000000000 [ 56.500138][ T5384] x26: ffff0000d1097a00 x25: ffff8000215d74e0 x24: ffff0000dea66bf0 [ 56.501463][ T5384] x23: ffff7000042bae4c x22: 00000000fffffff4 x21: 1fffe0001ba775ef [ 56.502784][ T5384] x20: ffff0000dd3baf20 x19: ffff0000dd3baf78 x18: 0000000000000001 [ 56.504026][ T5384] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 56.505426][ T5384] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 56.506771][ T5384] x11: 0000000000000000 x10: 0000000000000000 x9 : 8f01210c73776200 [ 56.508081][ T5384] x8 : 8f01210c73776200 x7 : 0000000000000001 x6 : 0000000000000001 [ 56.509396][ T5384] x5 : ffff8000215d6af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 56.510797][ T5384] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 56.512075][ T5384] Call trace: [ 56.512588][ T5384] btrfs_replace_file_extents+0xcc4/0x1238 [ 56.513475][ T5384] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 56.514365][ T5384] btrfs_prealloc_file_range+0x60/0x7c [ 56.515228][ T5384] btrfs_fallocate+0x1354/0x1638 [ 56.516009][ T5384] vfs_fallocate+0x4a4/0x5f4 [ 56.516717][ T5384] ioctl_preallocate+0x234/0x2dc [ 56.517545][ T5384] do_vfs_ioctl+0x1aa4/0x23f0 [ 56.518318][ T5384] __arm64_sys_ioctl+0xe4/0x1c8 [ 56.519112][ T5384] invoke_syscall+0x98/0x2b0 [ 56.519859][ T5384] el0_svc_common+0x138/0x258 [ 56.520606][ T5384] do_el0_svc+0x58/0x13c [ 56.521272][ T5384] el0_svc+0x78/0x1d0 [ 56.521907][ T5384] el0t_64_sync_handler+0xcc/0xe4 [ 56.522741][ T5384] el0t_64_sync+0x1a0/0x1a4 [ 56.523526][ T5384] irq event stamp: 78856 [ 56.524226][ T5384] hardirqs last enabled at (78855): [] __up_console_sem+0xb4/0xfc [ 56.525782][ T5384] hardirqs last disabled at (78856): [] el1_dbg+0x24/0x80 [ 56.527154][ T5384] softirqs last enabled at (78836): [] handle_softirqs+0xa40/0xbe4 [ 56.528686][ T5384] softirqs last disabled at (78745): [] __irq_exit_rcu+0x240/0x43c [ 56.530181][ T5384] ---[ end trace 5c6f179f1ab77356 ]--- [ 56.531934][ T5384] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 56.533584][ T5384] BTRFS info (device loop0): forced readonly [ 56.720407][ T5405] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5405) [ 56.723983][ T5405] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 56.725552][ T5405] BTRFS info (device loop0): using free space tree [ 56.726717][ T5405] BTRFS info (device loop0): has skinny extents [ 56.736516][ T5405] BTRFS info (device loop0): enabling ssd optimizations [ 56.740266][ T5405] FAULT_INJECTION: forcing a failure. [ 56.740266][ T5405] name failslab, interval 1, probability 0, space 0, times 0 [ 56.742778][ T5405] CPU: 1 PID: 5405 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.744199][ T5405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 56.745828][ T5405] Call trace: [ 56.746344][ T5405] dump_backtrace+0x0/0x458 [ 56.747136][ T5405] show_stack+0x2c/0x3c [ 56.747832][ T5405] __dump_stack+0x30/0x40 [ 56.748486][ T5405] dump_stack_lvl+0xf4/0x15c [ 56.749142][ T5405] dump_stack+0x1c/0x5c [ 56.749812][ T5405] should_fail+0x3bc/0x514 [ 56.750583][ T5405] __should_failslab+0xbc/0x10c [ 56.751362][ T5405] should_failslab+0x10/0x28 [ 56.752108][ T5405] slab_pre_alloc_hook+0x64/0xe8 [ 56.752874][ T5405] kmem_cache_alloc+0x94/0x3d4 [ 56.753585][ T5405] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 56.754462][ T5405] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 56.755410][ T5405] btrfs_insert_replace_extent+0x840/0x9cc [ 56.756388][ T5405] btrfs_replace_file_extents+0x89c/0x1238 [ 56.757301][ T5405] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 56.758177][ T5405] btrfs_prealloc_file_range+0x60/0x7c [ 56.759088][ T5405] btrfs_fallocate+0x1354/0x1638 [ 56.759845][ T5405] vfs_fallocate+0x4a4/0x5f4 [ 56.760537][ T5405] ioctl_preallocate+0x234/0x2dc [ 56.761333][ T5405] do_vfs_ioctl+0x1aa4/0x23f0 [ 56.762064][ T5405] __arm64_sys_ioctl+0xe4/0x1c8 [ 56.762823][ T5405] invoke_syscall+0x98/0x2b0 [ 56.763584][ T5405] el0_svc_common+0x138/0x258 [ 56.764370][ T5405] do_el0_svc+0x58/0x13c [ 56.765141][ T5405] el0_svc+0x78/0x1d0 [ 56.765784][ T5405] el0t_64_sync_handler+0xcc/0xe4 [ 56.766621][ T5405] el0t_64_sync+0x1a0/0x1a4 [ 56.768919][ T5405] ------------[ cut here ]------------ [ 56.769906][ T5405] WARNING: CPU: 1 PID: 5405 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 56.771572][ T5405] Modules linked in: [ 56.772252][ T5405] CPU: 1 PID: 5405 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.773809][ T5405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 56.775381][ T5405] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.776635][ T5405] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 56.777709][ T5405] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 56.778645][ T5405] sp : ffff8000220771e0 [ 56.779244][ T5405] x29: ffff800022077300 x28: dfff800000000000 x27: 0000000000000000 [ 56.780526][ T5405] x26: ffff0000c8443200 x25: ffff8000220774e0 x24: ffff0000dea989d0 [ 56.781778][ T5405] x23: ffff70000440ee4c x22: 00000000fffffff4 x21: 1fffe0001bd387ef [ 56.783043][ T5405] x20: ffff0000de9c3f20 x19: ffff0000de9c3f78 x18: 0000000000000001 [ 56.784274][ T5405] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 56.785529][ T5405] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 56.786822][ T5405] x11: 0000000000000000 x10: 0000000000000000 x9 : 8bf3379c7653a600 [ 56.788089][ T5405] x8 : 8bf3379c7653a600 x7 : 0000000000000001 x6 : 0000000000000001 [ 56.789292][ T5405] x5 : ffff800022076af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 56.790483][ T5405] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 56.791693][ T5405] Call trace: [ 56.792192][ T5405] btrfs_replace_file_extents+0xcc4/0x1238 [ 56.793042][ T5405] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 56.793884][ T5405] btrfs_prealloc_file_range+0x60/0x7c [ 56.794770][ T5405] btrfs_fallocate+0x1354/0x1638 [ 56.795586][ T5405] vfs_fallocate+0x4a4/0x5f4 [ 56.796386][ T5405] ioctl_preallocate+0x234/0x2dc [ 56.797191][ T5405] do_vfs_ioctl+0x1aa4/0x23f0 [ 56.797934][ T5405] __arm64_sys_ioctl+0xe4/0x1c8 [ 56.798734][ T5405] invoke_syscall+0x98/0x2b0 [ 56.799462][ T5405] el0_svc_common+0x138/0x258 [ 56.800256][ T5405] do_el0_svc+0x58/0x13c [ 56.800950][ T5405] el0_svc+0x78/0x1d0 [ 56.801594][ T5405] el0t_64_sync_handler+0xcc/0xe4 [ 56.802376][ T5405] el0t_64_sync+0x1a0/0x1a4 [ 56.803059][ T5405] irq event stamp: 79062 [ 56.803679][ T5405] hardirqs last enabled at (79061): [] __up_console_sem+0xb4/0xfc [ 56.805218][ T5405] hardirqs last disabled at (79062): [] el1_dbg+0x24/0x80 [ 56.806584][ T5405] softirqs last enabled at (79040): [] handle_softirqs+0xa40/0xbe4 [ 56.808149][ T5405] softirqs last disabled at (79023): [] __irq_exit_rcu+0x240/0x43c [ 56.809591][ T5405] ---[ end trace 5c6f179f1ab77357 ]--- [ 56.812075][ T5405] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 56.813675][ T5405] BTRFS info (device loop0): forced readonly [ 56.992224][ T5426] set_capacity_and_notify: 8 callbacks suppressed [ 56.992232][ T5426] loop0: detected capacity change from 0 to 32768 [ 56.995847][ T5426] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5426) [ 56.999004][ T5426] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 57.001515][ T5426] BTRFS info (device loop0): using free space tree [ 57.003104][ T5426] BTRFS info (device loop0): has skinny extents [ 57.011389][ T5426] BTRFS info (device loop0): enabling ssd optimizations [ 57.015629][ T5426] FAULT_INJECTION: forcing a failure. [ 57.015629][ T5426] name failslab, interval 1, probability 0, space 0, times 0 [ 57.017793][ T5426] CPU: 0 PID: 5426 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.019315][ T5426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 57.021052][ T5426] Call trace: [ 57.021579][ T5426] dump_backtrace+0x0/0x458 [ 57.022295][ T5426] show_stack+0x2c/0x3c [ 57.023005][ T5426] __dump_stack+0x30/0x40 [ 57.023687][ T5426] dump_stack_lvl+0xf4/0x15c [ 57.024473][ T5426] dump_stack+0x1c/0x5c [ 57.025144][ T5426] should_fail+0x3bc/0x514 [ 57.025864][ T5426] __should_failslab+0xbc/0x10c [ 57.026778][ T5426] should_failslab+0x10/0x28 [ 57.027570][ T5426] slab_pre_alloc_hook+0x64/0xe8 [ 57.028391][ T5426] kmem_cache_alloc+0x94/0x3d4 [ 57.029231][ T5426] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 57.030145][ T5426] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 57.031211][ T5426] btrfs_insert_replace_extent+0x840/0x9cc [ 57.032189][ T5426] btrfs_replace_file_extents+0x89c/0x1238 [ 57.033129][ T5426] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 57.034076][ T5426] btrfs_prealloc_file_range+0x60/0x7c [ 57.034938][ T5426] btrfs_fallocate+0x1354/0x1638 [ 57.035739][ T5426] vfs_fallocate+0x4a4/0x5f4 [ 57.036485][ T5426] ioctl_preallocate+0x234/0x2dc [ 57.037319][ T5426] do_vfs_ioctl+0x1aa4/0x23f0 [ 57.038137][ T5426] __arm64_sys_ioctl+0xe4/0x1c8 [ 57.038968][ T5426] invoke_syscall+0x98/0x2b0 [ 57.039709][ T5426] el0_svc_common+0x138/0x258 [ 57.040464][ T5426] do_el0_svc+0x58/0x13c [ 57.041183][ T5426] el0_svc+0x78/0x1d0 [ 57.041845][ T5426] el0t_64_sync_handler+0xcc/0xe4 [ 57.042699][ T5426] el0t_64_sync+0x1a0/0x1a4 [ 57.045871][ T5426] ------------[ cut here ]------------ [ 57.046804][ T5426] WARNING: CPU: 0 PID: 5426 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 57.048402][ T5426] Modules linked in: [ 57.049024][ T5426] CPU: 0 PID: 5426 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.050419][ T5426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 57.051940][ T5426] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 57.053130][ T5426] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 57.054084][ T5426] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 57.055148][ T5426] sp : ffff8000225171e0 [ 57.055855][ T5426] x29: ffff800022517300 x28: dfff800000000000 x27: 0000000000000000 [ 57.057236][ T5426] x26: ffff0000c7d19000 x25: ffff8000225174e0 x24: ffff0000e25144b0 [ 57.058519][ T5426] x23: ffff7000044a2e4c x22: 00000000fffffff4 x21: 1fffe0001bd48f29 [ 57.059808][ T5426] x20: ffff0000dea478f0 x19: ffff0000dea47948 x18: 0000000000000001 [ 57.061192][ T5426] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 57.062566][ T5426] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 57.063865][ T5426] x11: 0000000000000000 x10: 0000000000000000 x9 : e500edbe91bf8a00 [ 57.065226][ T5426] x8 : e500edbe91bf8a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 57.066488][ T5426] x5 : ffff800022516af8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 57.067898][ T5426] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 57.069265][ T5426] Call trace: [ 57.069813][ T5426] btrfs_replace_file_extents+0xcc4/0x1238 [ 57.070759][ T5426] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 57.071689][ T5426] btrfs_prealloc_file_range+0x60/0x7c [ 57.072615][ T5426] btrfs_fallocate+0x1354/0x1638 [ 57.073440][ T5426] vfs_fallocate+0x4a4/0x5f4 [ 57.074165][ T5426] ioctl_preallocate+0x234/0x2dc [ 57.075013][ T5426] do_vfs_ioctl+0x1aa4/0x23f0 [ 57.075862][ T5426] __arm64_sys_ioctl+0xe4/0x1c8 [ 57.076694][ T5426] invoke_syscall+0x98/0x2b0 [ 57.077482][ T5426] el0_svc_common+0x138/0x258 [ 57.078271][ T5426] do_el0_svc+0x58/0x13c [ 57.078993][ T5426] el0_svc+0x78/0x1d0 [ 57.079670][ T5426] el0t_64_sync_handler+0xcc/0xe4 [ 57.080525][ T5426] el0t_64_sync+0x1a0/0x1a4 [ 57.081232][ T5426] irq event stamp: 78826 [ 57.081911][ T5426] hardirqs last enabled at (78825): [] __up_console_sem+0xb4/0xfc [ 57.083450][ T5426] hardirqs last disabled at (78826): [] el1_dbg+0x24/0x80 [ 57.084970][ T5426] softirqs last enabled at (78804): [] handle_softirqs+0xa40/0xbe4 [ 57.086548][ T5426] softirqs last disabled at (78735): [] __irq_exit_rcu+0x240/0x43c [ 57.088137][ T5426] ---[ end trace 5c6f179f1ab77358 ]--- [ 57.089852][ T5426] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 57.091486][ T5426] BTRFS info (device loop0): forced readonly [ 57.266943][ T5447] loop0: detected capacity change from 0 to 32768 [ 57.269717][ T5447] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5447) [ 57.273595][ T5447] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 57.275954][ T5447] BTRFS info (device loop0): using free space tree [ 57.276946][ T5447] BTRFS info (device loop0): has skinny extents [ 57.288509][ T5447] BTRFS info (device loop0): enabling ssd optimizations [ 57.293225][ T5447] FAULT_INJECTION: forcing a failure. [ 57.293225][ T5447] name failslab, interval 1, probability 0, space 0, times 0