Warning: Permanently added '10.128.1.208' (ED25519) to the list of known hosts. 1970/01/01 00:00:51 ignoring optional flag "type"="gce" 1970/01/01 00:00:51 parsed 1 programs 1970/01/01 00:00:51 executed programs: 0 [ 51.950356][ T4285] chnl_net:caif_netlink_parms(): no params data found [ 51.969744][ T4285] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.970805][ T4285] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.972286][ T4285] device bridge_slave_0 entered promiscuous mode [ 51.974911][ T4285] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.976200][ T4285] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.977609][ T4285] device bridge_slave_1 entered promiscuous mode [ 51.986530][ T4285] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.989438][ T4285] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.997501][ T4285] team0: Port device team_slave_0 added [ 51.999660][ T4285] team0: Port device team_slave_1 added [ 52.007248][ T4285] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.008663][ T4285] 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. [ 52.012679][ T4285] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.015005][ T4285] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.016242][ T4285] 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. [ 52.020736][ T4285] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.068980][ T4285] device hsr_slave_0 entered promiscuous mode [ 52.118579][ T4285] device hsr_slave_1 entered promiscuous mode [ 52.649905][ T4285] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 52.689470][ T4285] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 52.729794][ T4285] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 52.759239][ T4285] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 52.805312][ T4285] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.806679][ T4285] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.808036][ T4285] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.809301][ T4285] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.830152][ T4285] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.834507][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.836335][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.839074][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.840969][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 52.845216][ T4285] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.850969][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.852533][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.853695][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.856205][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.858112][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.859310][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.870732][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.872537][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.874221][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.877514][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.879761][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.882573][ T4285] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.928038][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 52.929349][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 52.934531][ T4285] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.943233][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 52.944893][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 52.952619][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 52.954623][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 52.956604][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 52.959678][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 52.962669][ T4285] device veth0_vlan entered promiscuous mode [ 52.966539][ T4285] device veth1_vlan entered promiscuous mode [ 52.975693][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 52.977336][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 52.980012][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 52.981778][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 52.985414][ T4285] device veth0_macvtap entered promiscuous mode [ 52.988644][ T4285] device veth1_macvtap entered promiscuous mode [ 52.993795][ T4285] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 52.994955][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 52.996660][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 52.998976][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 53.000672][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 53.003862][ T4285] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 53.005121][ T411] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 53.006602][ T411] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 53.011390][ T4285] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.012868][ T4285] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.014246][ T4285] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.015694][ T4285] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.157166][ T4396] loop0: detected capacity change from 0 to 32768 [ 53.167568][ T4396] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4396) [ 53.181397][ T4396] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 53.183158][ T4396] BTRFS info (device loop0): using free space tree [ 53.184404][ T4396] BTRFS info (device loop0): has skinny extents [ 53.252718][ T4396] BTRFS info (device loop0): enabling ssd optimizations [ 53.261290][ T4396] FAULT_INJECTION: forcing a failure. [ 53.261290][ T4396] name failslab, interval 1, probability 0, space 0, times 1 [ 53.263612][ T4396] CPU: 0 PID: 4396 Comm: syz-executor.0 Not tainted syzkaller #0 [ 53.264942][ T4396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.266662][ T4396] Call trace: [ 53.267222][ T4396] dump_backtrace+0x0/0x458 [ 53.267986][ T4396] show_stack+0x2c/0x3c [ 53.268694][ T4396] __dump_stack+0x30/0x40 [ 53.269392][ T4396] dump_stack_lvl+0xf4/0x15c [ 53.270203][ T4396] dump_stack+0x1c/0x5c [ 53.270916][ T4396] should_fail+0x3bc/0x514 [ 53.271687][ T4396] __should_failslab+0xbc/0x10c [ 53.272433][ T4396] should_failslab+0x10/0x28 [ 53.273219][ T4396] slab_pre_alloc_hook+0x64/0xe8 [ 53.274122][ T4396] kmem_cache_alloc+0x94/0x3d4 [ 53.274863][ T4396] btrfs_add_delayed_data_ref+0x160/0xd08 [ 53.275865][ T4396] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 53.276910][ T4396] btrfs_insert_replace_extent+0x840/0x9cc [ 53.277812][ T4396] btrfs_replace_file_extents+0x89c/0x1238 [ 53.278778][ T4396] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 53.279645][ T4396] btrfs_prealloc_file_range+0x60/0x7c [ 53.280533][ T4396] btrfs_fallocate+0x1354/0x1638 [ 53.281254][ T4396] vfs_fallocate+0x4a4/0x5f4 [ 53.281992][ T4396] ioctl_preallocate+0x234/0x2dc [ 53.282832][ T4396] do_vfs_ioctl+0x1aa4/0x23f0 [ 53.283552][ T4396] __arm64_sys_ioctl+0xe4/0x1c8 [ 53.284215][ T4396] invoke_syscall+0x98/0x2b0 [ 53.284873][ T4396] el0_svc_common+0x138/0x258 [ 53.285644][ T4396] do_el0_svc+0x58/0x13c [ 53.286256][ T4396] el0_svc+0x78/0x1d0 [ 53.286931][ T4396] el0t_64_sync_handler+0xcc/0xe4 [ 53.287713][ T4396] el0t_64_sync+0x1a0/0x1a4 [ 53.289696][ T4396] ------------[ cut here ]------------ [ 53.290802][ T4396] WARNING: CPU: 0 PID: 4396 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 53.292551][ T4396] Modules linked in: [ 53.293185][ T4396] CPU: 0 PID: 4396 Comm: syz-executor.0 Not tainted syzkaller #0 [ 53.294295][ T4396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.295925][ T4396] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.297261][ T4396] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 53.298419][ T4396] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 53.299502][ T4396] sp : ffff80001f7a71e0 [ 53.300233][ T4396] x29: ffff80001f7a7300 x28: dfff800000000000 x27: 0000000000000000 [ 53.301704][ T4396] x26: ffff0000c7e9ac00 x25: ffff80001f7a74e0 x24: ffff0000deba93a0 [ 53.303064][ T4396] x23: ffff700003ef4e4c x22: 00000000fffffff4 x21: 1fffe0001bd11a21 [ 53.304447][ T4396] x20: ffff0000de88d0b0 x19: ffff0000de88d108 x18: 0000000000000001 [ 53.305785][ T4396] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 53.307265][ T4396] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 53.308549][ T4396] x11: 0000000000000000 x10: 0000000000000000 x9 : 5250fd472be49000 [ 53.309995][ T4396] x8 : 5250fd472be49000 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.311321][ T4396] x5 : ffff80001f7a6af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 53.312584][ T4396] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 53.313950][ T4396] Call trace: [ 53.314439][ T4396] btrfs_replace_file_extents+0xcc4/0x1238 [ 53.315325][ T4396] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 53.316283][ T4396] btrfs_prealloc_file_range+0x60/0x7c [ 53.317206][ T4396] btrfs_fallocate+0x1354/0x1638 [ 53.318092][ T4396] vfs_fallocate+0x4a4/0x5f4 [ 53.318909][ T4396] ioctl_preallocate+0x234/0x2dc [ 53.319725][ T4396] do_vfs_ioctl+0x1aa4/0x23f0 [ 53.320467][ T4396] __arm64_sys_ioctl+0xe4/0x1c8 [ 53.321114][ T4396] invoke_syscall+0x98/0x2b0 [ 53.321822][ T4396] el0_svc_common+0x138/0x258 [ 53.322645][ T4396] do_el0_svc+0x58/0x13c [ 53.323353][ T4396] el0_svc+0x78/0x1d0 [ 53.324020][ T4396] el0t_64_sync_handler+0xcc/0xe4 [ 53.324886][ T4396] el0t_64_sync+0x1a0/0x1a4 [ 53.325634][ T4396] irq event stamp: 82882 [ 53.326312][ T4396] hardirqs last enabled at (82881): [] __up_console_sem+0xb4/0xfc [ 53.327907][ T4396] hardirqs last disabled at (82882): [] el1_dbg+0x24/0x80 [ 53.329427][ T4396] softirqs last enabled at (82862): [] handle_softirqs+0xa40/0xbe4 [ 53.330899][ T4396] softirqs last disabled at (82701): [] __irq_exit_rcu+0x240/0x43c [ 53.332296][ T4396] ---[ end trace 8d10d9358935fd3c ]--- [ 53.338076][ T4396] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 53.339900][ T4396] BTRFS info (device loop0): forced readonly [ 53.541731][ T4464] loop0: detected capacity change from 0 to 32768 [ 53.549919][ T4464] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4464) [ 53.553758][ T4464] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 53.555405][ T4464] BTRFS info (device loop0): using free space tree [ 53.557412][ T4464] BTRFS info (device loop0): has skinny extents [ 53.626924][ T4464] BTRFS info (device loop0): enabling ssd optimizations [ 53.637509][ T4464] FAULT_INJECTION: forcing a failure. [ 53.637509][ T4464] name failslab, interval 1, probability 0, space 0, times 0 [ 53.643926][ T4464] CPU: 0 PID: 4464 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.645538][ T4464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.647285][ T4464] Call trace: [ 53.647868][ T4464] dump_backtrace+0x0/0x458 [ 53.648574][ T4464] show_stack+0x2c/0x3c [ 53.649312][ T4464] __dump_stack+0x30/0x40 [ 53.650012][ T4464] dump_stack_lvl+0xf4/0x15c [ 53.650715][ T4464] dump_stack+0x1c/0x5c [ 53.651532][ T4464] should_fail+0x3bc/0x514 [ 53.652332][ T4464] __should_failslab+0xbc/0x10c [ 53.653213][ T4464] should_failslab+0x10/0x28 [ 53.654005][ T4464] slab_pre_alloc_hook+0x64/0xe8 [ 53.654819][ T4464] kmem_cache_alloc+0x94/0x3d4 [ 53.655619][ T4464] btrfs_add_delayed_data_ref+0x160/0xd08 [ 53.656528][ T4464] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 53.657653][ T4464] btrfs_insert_replace_extent+0x840/0x9cc [ 53.658605][ T4464] btrfs_replace_file_extents+0x89c/0x1238 [ 53.659664][ T4464] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 53.660612][ T4464] btrfs_prealloc_file_range+0x60/0x7c [ 53.661526][ T4464] btrfs_fallocate+0x1354/0x1638 [ 53.662354][ T4464] vfs_fallocate+0x4a4/0x5f4 [ 53.663090][ T4464] ioctl_preallocate+0x234/0x2dc [ 53.663940][ T4464] do_vfs_ioctl+0x1aa4/0x23f0 [ 53.664709][ T4464] __arm64_sys_ioctl+0xe4/0x1c8 [ 53.665459][ T4464] invoke_syscall+0x98/0x2b0 [ 53.666171][ T4464] el0_svc_common+0x138/0x258 [ 53.666953][ T4464] do_el0_svc+0x58/0x13c [ 53.667656][ T4464] el0_svc+0x78/0x1d0 [ 53.668290][ T4464] el0t_64_sync_handler+0xcc/0xe4 [ 53.669106][ T4464] el0t_64_sync+0x1a0/0x1a4 [ 53.686889][ T4464] ------------[ cut here ]------------ [ 53.688898][ T4464] WARNING: CPU: 0 PID: 4464 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 53.690772][ T4464] Modules linked in: [ 53.691459][ T4464] CPU: 0 PID: 4464 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.693080][ T4464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.694641][ T4464] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.696127][ T4464] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 53.697176][ T4464] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 53.698231][ T4464] sp : ffff80001f8371e0 [ 53.698989][ T4464] x29: ffff80001f837300 x28: dfff800000000000 x27: 0000000000000000 [ 53.700427][ T4464] x26: ffff0000d26b8c00 x25: ffff80001f8374e0 x24: ffff0000debab110 [ 53.701848][ T4464] x23: ffff700003f06e4c x22: 00000000fffffff4 x21: 1fffe0001bd11a4d [ 53.703117][ T4464] x20: ffff0000de88d210 x19: ffff0000de88d268 x18: 0000000000000001 [ 53.704682][ T4464] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 53.706013][ T4464] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 53.707369][ T4464] x11: 0000000000000000 x10: 0000000000000000 x9 : 0b4746a77ebc1100 [ 53.708875][ T4464] x8 : 0b4746a77ebc1100 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.710259][ T4464] x5 : ffff80001f836af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 53.711625][ T4464] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 53.713127][ T4464] Call trace: [ 53.713748][ T4464] btrfs_replace_file_extents+0xcc4/0x1238 [ 53.714777][ T4464] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 53.715796][ T4464] btrfs_prealloc_file_range+0x60/0x7c [ 53.716784][ T4464] btrfs_fallocate+0x1354/0x1638 [ 53.717699][ T4464] vfs_fallocate+0x4a4/0x5f4 [ 53.718516][ T4464] ioctl_preallocate+0x234/0x2dc [ 53.719410][ T4464] do_vfs_ioctl+0x1aa4/0x23f0 [ 53.720247][ T4464] __arm64_sys_ioctl+0xe4/0x1c8 [ 53.721115][ T4464] invoke_syscall+0x98/0x2b0 [ 53.721969][ T4464] el0_svc_common+0x138/0x258 [ 53.722805][ T4464] do_el0_svc+0x58/0x13c [ 53.723522][ T4464] el0_svc+0x78/0x1d0 [ 53.724337][ T4464] el0t_64_sync_handler+0xcc/0xe4 [ 53.725201][ T4464] el0t_64_sync+0x1a0/0x1a4 [ 53.725991][ T4464] irq event stamp: 80592 [ 53.726671][ T4464] hardirqs last enabled at (80591): [] __up_console_sem+0xb4/0xfc [ 53.728442][ T4464] hardirqs last disabled at (80592): [] el1_dbg+0x24/0x80 [ 53.729804][ T4464] softirqs last enabled at (80580): [] handle_softirqs+0xa40/0xbe4 [ 53.731524][ T4464] softirqs last disabled at (80569): [] __irq_exit_rcu+0x240/0x43c [ 53.733093][ T4464] ---[ end trace 8d10d9358935fd3d ]--- [ 53.737581][ T4464] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 53.739629][ T4464] BTRFS info (device loop0): forced readonly [ 53.938941][ T4513] Bluetooth: hci0: command 0x0409 tx timeout [ 53.954036][ T4540] loop0: detected capacity change from 0 to 32768 [ 53.960175][ T4540] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4540) [ 53.966108][ T4540] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 53.973398][ T4540] BTRFS info (device loop0): using free space tree [ 53.974597][ T4540] BTRFS info (device loop0): has skinny extents [ 54.035466][ T4540] BTRFS info (device loop0): enabling ssd optimizations [ 54.045364][ T4540] FAULT_INJECTION: forcing a failure. [ 54.045364][ T4540] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 54.048611][ T4540] CPU: 1 PID: 4540 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.050144][ T4540] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.051947][ T4540] Call trace: [ 54.052551][ T4540] dump_backtrace+0x0/0x458 [ 54.053314][ T4540] show_stack+0x2c/0x3c [ 54.054070][ T4540] __dump_stack+0x30/0x40 [ 54.054837][ T4540] dump_stack_lvl+0xf4/0x15c [ 54.055613][ T4540] dump_stack+0x1c/0x5c [ 54.056291][ T4540] should_fail+0x3bc/0x514 [ 54.057037][ T4540] should_fail_alloc_page+0x74/0xa8 [ 54.057822][ T4540] prepare_alloc_pages+0x160/0x45c [ 54.058684][ T4540] __alloc_pages+0x108/0x470 [ 54.059514][ T4540] alloc_pages+0x34c/0x5c0 [ 54.060230][ T4540] new_slab+0xe0/0x544 [ 54.060873][ T4540] ___slab_alloc+0x6b4/0xd8c [ 54.061569][ T4540] __slab_alloc+0x68/0xc0 [ 54.062330][ T4540] kmem_cache_alloc+0x2a4/0x3d4 [ 54.063167][ T4540] btrfs_add_delayed_data_ref+0x160/0xd08 [ 54.064216][ T4540] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 54.065306][ T4540] btrfs_insert_replace_extent+0x840/0x9cc [ 54.066321][ T4540] btrfs_replace_file_extents+0x89c/0x1238 [ 54.067298][ T4540] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 54.068267][ T4540] btrfs_prealloc_file_range+0x60/0x7c [ 54.069231][ T4540] btrfs_fallocate+0x1354/0x1638 [ 54.070064][ T4540] vfs_fallocate+0x4a4/0x5f4 [ 54.070784][ T4540] ioctl_preallocate+0x234/0x2dc [ 54.071542][ T4540] do_vfs_ioctl+0x1aa4/0x23f0 [ 54.072225][ T4540] __arm64_sys_ioctl+0xe4/0x1c8 [ 54.073064][ T4540] invoke_syscall+0x98/0x2b0 [ 54.073896][ T4540] el0_svc_common+0x138/0x258 [ 54.074767][ T4540] do_el0_svc+0x58/0x13c [ 54.075527][ T4540] el0_svc+0x78/0x1d0 [ 54.076186][ T4540] el0t_64_sync_handler+0xcc/0xe4 [ 54.077108][ T4540] el0t_64_sync+0x1a0/0x1a4 [ 54.328297][ T4597] loop0: detected capacity change from 0 to 32768 [ 54.331461][ T4597] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4597) [ 54.336640][ T4597] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 54.339096][ T4597] BTRFS info (device loop0): using free space tree [ 54.339986][ T4597] BTRFS info (device loop0): has skinny extents [ 54.407018][ T4597] BTRFS info (device loop0): enabling ssd optimizations [ 54.418610][ T4597] FAULT_INJECTION: forcing a failure. [ 54.418610][ T4597] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 54.420855][ T4597] CPU: 0 PID: 4597 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.422419][ T4597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.424218][ T4597] Call trace: [ 54.424793][ T4597] dump_backtrace+0x0/0x458 [ 54.425590][ T4597] show_stack+0x2c/0x3c [ 54.426272][ T4597] __dump_stack+0x30/0x40 [ 54.427012][ T4597] dump_stack_lvl+0xf4/0x15c [ 54.427795][ T4597] dump_stack+0x1c/0x5c [ 54.428463][ T4597] should_fail+0x3bc/0x514 [ 54.429181][ T4597] should_fail_alloc_page+0x74/0xa8 [ 54.429989][ T4597] prepare_alloc_pages+0x160/0x45c [ 54.430842][ T4597] __alloc_pages+0x108/0x470 [ 54.431725][ T4597] alloc_pages+0x34c/0x5c0 [ 54.432461][ T4597] new_slab+0xe0/0x544 [ 54.433142][ T4597] ___slab_alloc+0x6b4/0xd8c [ 54.433907][ T4597] __slab_alloc+0x68/0xc0 [ 54.434662][ T4597] kmem_cache_alloc+0x2a4/0x3d4 [ 54.435462][ T4597] btrfs_add_delayed_data_ref+0x160/0xd08 [ 54.436543][ T4597] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 54.437637][ T4597] btrfs_insert_replace_extent+0x840/0x9cc [ 54.438612][ T4597] btrfs_replace_file_extents+0x89c/0x1238 [ 54.439580][ T4597] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 54.440589][ T4597] btrfs_prealloc_file_range+0x60/0x7c [ 54.441528][ T4597] btrfs_fallocate+0x1354/0x1638 [ 54.442380][ T4597] vfs_fallocate+0x4a4/0x5f4 [ 54.443148][ T4597] ioctl_preallocate+0x234/0x2dc [ 54.444015][ T4597] do_vfs_ioctl+0x1aa4/0x23f0 [ 54.444726][ T4597] __arm64_sys_ioctl+0xe4/0x1c8 [ 54.445548][ T4597] invoke_syscall+0x98/0x2b0 [ 54.446330][ T4597] el0_svc_common+0x138/0x258 [ 54.447092][ T4597] do_el0_svc+0x58/0x13c [ 54.447820][ T4597] el0_svc+0x78/0x1d0 [ 54.448442][ T4597] el0t_64_sync_handler+0xcc/0xe4 [ 54.449248][ T4597] el0t_64_sync+0x1a0/0x1a4 [ 54.708951][ T4651] loop0: detected capacity change from 0 to 32768 [ 54.713238][ T4651] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4651) [ 54.719301][ T4651] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 54.720999][ T4651] BTRFS info (device loop0): using free space tree [ 54.722397][ T4651] BTRFS info (device loop0): has skinny extents [ 54.733753][ T4651] BTRFS info (device loop0): enabling ssd optimizations [ 54.745427][ T4651] FAULT_INJECTION: forcing a failure. [ 54.745427][ T4651] name failslab, interval 1, probability 0, space 0, times 0 [ 54.748205][ T4651] CPU: 0 PID: 4651 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.749854][ T4651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.751494][ T4651] Call trace: [ 54.752028][ T4651] dump_backtrace+0x0/0x458 [ 54.752692][ T4651] show_stack+0x2c/0x3c [ 54.753344][ T4651] __dump_stack+0x30/0x40 [ 54.754091][ T4651] dump_stack_lvl+0xf4/0x15c [ 54.754844][ T4651] dump_stack+0x1c/0x5c [ 54.755514][ T4651] should_fail+0x3bc/0x514 [ 54.756214][ T4651] __should_failslab+0xbc/0x10c [ 54.756933][ T4651] should_failslab+0x10/0x28 [ 54.757658][ T4651] slab_pre_alloc_hook+0x64/0xe8 [ 54.758479][ T4651] kmem_cache_alloc+0x94/0x3d4 [ 54.759348][ T4651] btrfs_add_delayed_data_ref+0x160/0xd08 [ 54.760339][ T4651] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 54.761432][ T4651] btrfs_insert_replace_extent+0x840/0x9cc [ 54.762475][ T4651] btrfs_replace_file_extents+0x89c/0x1238 [ 54.763499][ T4651] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 54.764347][ T4651] btrfs_prealloc_file_range+0x60/0x7c [ 54.765252][ T4651] btrfs_fallocate+0x1354/0x1638 [ 54.766111][ T4651] vfs_fallocate+0x4a4/0x5f4 [ 54.766986][ T4651] ioctl_preallocate+0x234/0x2dc [ 54.767823][ T4651] do_vfs_ioctl+0x1aa4/0x23f0 [ 54.768586][ T4651] __arm64_sys_ioctl+0xe4/0x1c8 [ 54.769384][ T4651] invoke_syscall+0x98/0x2b0 [ 54.770078][ T4651] el0_svc_common+0x138/0x258 [ 54.770888][ T4651] do_el0_svc+0x58/0x13c [ 54.771555][ T4651] el0_svc+0x78/0x1d0 [ 54.772185][ T4651] el0t_64_sync_handler+0xcc/0xe4 [ 54.773048][ T4651] el0t_64_sync+0x1a0/0x1a4 [ 54.774647][ T4651] ------------[ cut here ]------------ [ 54.775750][ T4651] WARNING: CPU: 0 PID: 4651 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 54.777456][ T4651] Modules linked in: [ 54.778144][ T4651] CPU: 0 PID: 4651 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.779764][ T4651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.781478][ T4651] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.782757][ T4651] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 54.783757][ T4651] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 54.784736][ T4651] sp : ffff80001fca71e0 [ 54.785360][ T4651] x29: ffff80001fca7300 x28: dfff800000000000 x27: 0000000000000000 [ 54.786750][ T4651] x26: ffff0000d08a6300 x25: ffff80001fca74e0 x24: ffff0000debae220 [ 54.788126][ T4651] x23: ffff700003f94e4c x22: 00000000fffffff4 x21: 1fffe0001bd11ad1 [ 54.789461][ T4651] x20: ffff0000de88d630 x19: ffff0000de88d688 x18: 0000000000000001 [ 54.790822][ T4651] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 54.792152][ T4651] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 54.793549][ T4651] x11: 0000000000000000 x10: 0000000000000000 x9 : f43c59a943774400 [ 54.794978][ T4651] x8 : f43c59a943774400 x7 : 0000000000000001 x6 : 0000000000000001 [ 54.796520][ T4651] x5 : ffff80001fca6af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 54.797921][ T4651] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 54.799218][ T4651] Call trace: [ 54.799719][ T4651] btrfs_replace_file_extents+0xcc4/0x1238 [ 54.800623][ T4651] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 54.801512][ T4651] btrfs_prealloc_file_range+0x60/0x7c [ 54.802345][ T4651] btrfs_fallocate+0x1354/0x1638 [ 54.803126][ T4651] vfs_fallocate+0x4a4/0x5f4 [ 54.803893][ T4651] ioctl_preallocate+0x234/0x2dc [ 54.804800][ T4651] do_vfs_ioctl+0x1aa4/0x23f0 [ 54.805585][ T4651] __arm64_sys_ioctl+0xe4/0x1c8 [ 54.806358][ T4651] invoke_syscall+0x98/0x2b0 [ 54.807112][ T4651] el0_svc_common+0x138/0x258 [ 54.807873][ T4651] do_el0_svc+0x58/0x13c [ 54.808620][ T4651] el0_svc+0x78/0x1d0 [ 54.809282][ T4651] el0t_64_sync_handler+0xcc/0xe4 [ 54.810246][ T4651] el0t_64_sync+0x1a0/0x1a4 [ 54.811031][ T4651] irq event stamp: 80234 [ 54.811673][ T4651] hardirqs last enabled at (80233): [] __up_console_sem+0xb4/0xfc [ 54.813312][ T4651] hardirqs last disabled at (80234): [] el1_dbg+0x24/0x80 [ 54.814727][ T4651] softirqs last enabled at (80214): [] handle_softirqs+0xa40/0xbe4 [ 54.816199][ T4651] softirqs last disabled at (80179): [] __irq_exit_rcu+0x240/0x43c [ 54.817697][ T4651] ---[ end trace 8d10d9358935fd3e ]--- [ 54.820245][ T4651] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 54.822113][ T4651] BTRFS info (device loop0): forced readonly [ 55.007181][ T4683] loop0: detected capacity change from 0 to 32768 [ 55.010519][ T4683] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4683) [ 55.014688][ T4683] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 55.016507][ T4683] BTRFS info (device loop0): using free space tree [ 55.017776][ T4683] BTRFS info (device loop0): has skinny extents [ 55.029769][ T4683] BTRFS info (device loop0): enabling ssd optimizations [ 55.033555][ T4683] FAULT_INJECTION: forcing a failure. [ 55.033555][ T4683] name failslab, interval 1, probability 0, space 0, times 0 [ 55.035795][ T4683] CPU: 0 PID: 4683 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.037332][ T4683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.039097][ T4683] Call trace: [ 55.039704][ T4683] dump_backtrace+0x0/0x458 [ 55.040431][ T4683] show_stack+0x2c/0x3c [ 55.041118][ T4683] __dump_stack+0x30/0x40 [ 55.041882][ T4683] dump_stack_lvl+0xf4/0x15c [ 55.042628][ T4683] dump_stack+0x1c/0x5c [ 55.043238][ T4683] should_fail+0x3bc/0x514 [ 55.043989][ T4683] __should_failslab+0xbc/0x10c [ 55.044867][ T4683] should_failslab+0x10/0x28 [ 55.045592][ T4683] slab_pre_alloc_hook+0x64/0xe8 [ 55.046463][ T4683] kmem_cache_alloc+0x94/0x3d4 [ 55.047226][ T4683] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 55.048115][ T4683] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 55.049170][ T4683] btrfs_insert_replace_extent+0x840/0x9cc [ 55.050198][ T4683] btrfs_replace_file_extents+0x89c/0x1238 [ 55.051103][ T4683] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 55.051873][ T4683] btrfs_prealloc_file_range+0x60/0x7c [ 55.052605][ T4683] btrfs_fallocate+0x1354/0x1638 [ 55.053269][ T4683] vfs_fallocate+0x4a4/0x5f4 [ 55.053896][ T4683] ioctl_preallocate+0x234/0x2dc [ 55.054568][ T4683] do_vfs_ioctl+0x1aa4/0x23f0 [ 55.055282][ T4683] __arm64_sys_ioctl+0xe4/0x1c8 [ 55.056032][ T4683] invoke_syscall+0x98/0x2b0 [ 55.056785][ T4683] el0_svc_common+0x138/0x258 [ 55.057555][ T4683] do_el0_svc+0x58/0x13c [ 55.058170][ T4683] el0_svc+0x78/0x1d0 [ 55.058831][ T4683] el0t_64_sync_handler+0xcc/0xe4 [ 55.059565][ T4683] el0t_64_sync+0x1a0/0x1a4 [ 55.061078][ T4683] ------------[ cut here ]------------ [ 55.062324][ T4683] WARNING: CPU: 0 PID: 4683 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 55.063888][ T4683] Modules linked in: [ 55.064511][ T4683] CPU: 0 PID: 4683 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.065991][ T4683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.067571][ T4683] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.068811][ T4683] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 55.069841][ T4683] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 55.070906][ T4683] sp : ffff80001fca71e0 [ 55.071615][ T4683] x29: ffff80001fca7300 x28: dfff800000000000 x27: 0000000000000000 [ 55.072995][ T4683] x26: ffff0000c1889c00 x25: ffff80001fca74e0 x24: ffff0000e2420000 [ 55.074384][ T4683] x23: ffff700003f94e4c x22: 00000000fffffff4 x21: 1fffe0001bd11afd [ 55.075759][ T4683] x20: ffff0000de88d790 x19: ffff0000de88d7e8 x18: 0000000000000001 [ 55.077040][ T4683] x17: 0000000000000000 x16: ffff800008304af8 x15: 00000000ffffffff [ 55.078316][ T4683] x14: 0000000000000001 x13: 1ffff00003f94d5c x12: 0000000000ff0100 [ 55.079624][ T4683] x11: 0000000000000000 x10: 0000000000000000 x9 : 7669b4cc9a0cef00 [ 55.081000][ T4683] x8 : 7669b4cc9a0cef00 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.082384][ T4683] x5 : ffff80001fca6af8 x4 : ffff80001437f3e0 x3 : ffff800008304c08 [ 55.083729][ T4683] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.085016][ T4683] Call trace: [ 55.085553][ T4683] btrfs_replace_file_extents+0xcc4/0x1238 [ 55.086500][ T4683] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 55.087499][ T4683] btrfs_prealloc_file_range+0x60/0x7c [ 55.088236][ T4683] btrfs_fallocate+0x1354/0x1638 [ 55.088878][ T4683] vfs_fallocate+0x4a4/0x5f4 [ 55.089568][ T4683] ioctl_preallocate+0x234/0x2dc [ 55.090290][ T4683] do_vfs_ioctl+0x1aa4/0x23f0 [ 55.091087][ T4683] __arm64_sys_ioctl+0xe4/0x1c8 [ 55.091947][ T4683] invoke_syscall+0x98/0x2b0 [ 55.092709][ T4683] el0_svc_common+0x138/0x258 [ 55.093470][ T4683] do_el0_svc+0x58/0x13c [ 55.094132][ T4683] el0_svc+0x78/0x1d0 [ 55.094795][ T4683] el0t_64_sync_handler+0xcc/0xe4 [ 55.095610][ T4683] el0t_64_sync+0x1a0/0x1a4 [ 55.096297][ T4683] irq event stamp: 80194 [ 55.096982][ T4683] hardirqs last enabled at (80193): [] __up_console_sem+0xb4/0xfc [ 55.098506][ T4683] hardirqs last disabled at (80194): [] el1_dbg+0x24/0x80 [ 55.099845][ T4683] softirqs last enabled at (80182): [] handle_softirqs+0xa40/0xbe4 [ 55.101535][ T4683] softirqs last disabled at (80135): [] __irq_exit_rcu+0x240/0x43c [ 55.103234][ T4683] ---[ end trace 8d10d9358935fd3f ]--- [ 55.104458][ T4683] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 55.106045][ T4683] BTRFS info (device loop0): forced readonly [ 55.287928][ T4708] loop0: detected capacity change from 0 to 32768 [ 55.290737][ T4708] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4708) [ 55.294516][ T4708] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 55.295891][ T4708] BTRFS info (device loop0): using free space tree [ 55.297056][ T4708] BTRFS info (device loop0): has skinny extents [ 55.310429][ T4708] BTRFS info (device loop0): enabling ssd optimizations [ 55.314665][ T4708] FAULT_INJECTION: forcing a failure. [ 55.314665][ T4708] name failslab, interval 1, probability 0, space 0, times 0 [ 55.316870][ T4708] CPU: 1 PID: 4708 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.318426][ T4708] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.319971][ T4708] Call trace: [ 55.320475][ T4708] dump_backtrace+0x0/0x458 [ 55.321178][ T4708] show_stack+0x2c/0x3c [ 55.321909][ T4708] __dump_stack+0x30/0x40 [ 55.322593][ T4708] dump_stack_lvl+0xf4/0x15c [ 55.323414][ T4708] dump_stack+0x1c/0x5c [ 55.324056][ T4708] should_fail+0x3bc/0x514 [ 55.324787][ T4708] __should_failslab+0xbc/0x10c [ 55.325662][ T4708] should_failslab+0x10/0x28 [ 55.326393][ T4708] slab_pre_alloc_hook+0x64/0xe8 [ 55.327082][ T4708] kmem_cache_alloc+0x94/0x3d4 [ 55.327730][ T4708] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 55.328540][ T4708] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 55.329566][ T4708] btrfs_insert_replace_extent+0x840/0x9cc [ 55.330548][ T4708] btrfs_replace_file_extents+0x89c/0x1238 [ 55.331470][ T4708] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 55.332542][ T4708] btrfs_prealloc_file_range+0x60/0x7c [ 55.333546][ T4708] btrfs_fallocate+0x1354/0x1638 [ 55.334390][ T4708] vfs_fallocate+0x4a4/0x5f4 [ 55.335130][ T4708] ioctl_preallocate+0x234/0x2dc [ 55.335950][ T4708] do_vfs_ioctl+0x1aa4/0x23f0 [ 55.336713][ T4708] __arm64_sys_ioctl+0xe4/0x1c8 [ 55.337660][ T4708] invoke_syscall+0x98/0x2b0 [ 55.338460][ T4708] el0_svc_common+0x138/0x258 [ 55.339240][ T4708] do_el0_svc+0x58/0x13c [ 55.339990][ T4708] el0_svc+0x78/0x1d0 [ 55.340655][ T4708] el0t_64_sync_handler+0xcc/0xe4 [ 55.341628][ T4708] el0t_64_sync+0x1a0/0x1a4 [ 55.343363][ T4708] ------------[ cut here ]------------ [ 55.344203][ T4708] WARNING: CPU: 1 PID: 4708 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 55.345514][ T4708] Modules linked in: [ 55.346045][ T4708] CPU: 1 PID: 4708 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.347281][ T4708] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.348628][ T4708] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.349741][ T4708] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 55.350812][ T4708] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 55.351934][ T4708] sp : ffff80001fe471e0 [ 55.352656][ T4708] x29: ffff80001fe47300 x28: dfff800000000000 x27: 0000000000000000 [ 55.354009][ T4708] x26: ffff0000ca6b5300 x25: ffff80001fe474e0 x24: ffff0000de9ebae0 [ 55.355324][ T4708] x23: ffff700003fc8e4c x22: 00000000fffffff4 x21: 1fffe0001a0a0879 [ 55.356642][ T4708] x20: ffff0000d0504370 x19: ffff0000d05043c8 x18: 0000000000000001 [ 55.358035][ T4708] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 55.359330][ T4708] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 55.360770][ T4708] x11: 0000000000000000 x10: 0000000000000000 x9 : 4665b70f2f248b00 [ 55.361946][ T4708] x8 : 4665b70f2f248b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.363302][ T4708] x5 : ffff80001fe46af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 55.364651][ T4708] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.366025][ T4708] Call trace: [ 55.366601][ T4708] btrfs_replace_file_extents+0xcc4/0x1238 [ 55.367526][ T4708] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 55.368430][ T4708] btrfs_prealloc_file_range+0x60/0x7c [ 55.369324][ T4708] btrfs_fallocate+0x1354/0x1638 [ 55.370238][ T4708] vfs_fallocate+0x4a4/0x5f4 [ 55.371007][ T4708] ioctl_preallocate+0x234/0x2dc [ 55.371764][ T4708] do_vfs_ioctl+0x1aa4/0x23f0 [ 55.372509][ T4708] __arm64_sys_ioctl+0xe4/0x1c8 [ 55.373303][ T4708] invoke_syscall+0x98/0x2b0 [ 55.373959][ T4708] el0_svc_common+0x138/0x258 [ 55.374660][ T4708] do_el0_svc+0x58/0x13c [ 55.375364][ T4708] el0_svc+0x78/0x1d0 [ 55.375969][ T4708] el0t_64_sync_handler+0xcc/0xe4 [ 55.376810][ T4708] el0t_64_sync+0x1a0/0x1a4 [ 55.377486][ T4708] irq event stamp: 79970 [ 55.378083][ T4708] hardirqs last enabled at (79969): [] __up_console_sem+0xb4/0xfc [ 55.379434][ T4708] hardirqs last disabled at (79970): [] el1_dbg+0x24/0x80 [ 55.380668][ T4708] softirqs last enabled at (79946): [] handle_softirqs+0xa40/0xbe4 [ 55.382256][ T4708] softirqs last disabled at (79913): [] __irq_exit_rcu+0x240/0x43c [ 55.383902][ T4708] ---[ end trace 8d10d9358935fd40 ]--- [ 55.385968][ T4708] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 55.388644][ T4708] BTRFS info (device loop0): forced readonly [ 55.568584][ T4729] loop0: detected capacity change from 0 to 32768 [ 55.571433][ T4729] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4729) [ 55.575496][ T4729] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 55.577009][ T4729] BTRFS info (device loop0): using free space tree [ 55.578653][ T4729] BTRFS info (device loop0): has skinny extents [ 55.586894][ T4729] BTRFS info (device loop0): enabling ssd optimizations [ 55.591403][ T4729] FAULT_INJECTION: forcing a failure. [ 55.591403][ T4729] name failslab, interval 1, probability 0, space 0, times 0 [ 55.593687][ T4729] CPU: 0 PID: 4729 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.595212][ T4729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.596912][ T4729] Call trace: [ 55.597488][ T4729] dump_backtrace+0x0/0x458 [ 55.598392][ T4729] show_stack+0x2c/0x3c [ 55.599107][ T4729] __dump_stack+0x30/0x40 [ 55.599854][ T4729] dump_stack_lvl+0xf4/0x15c [ 55.600643][ T4729] dump_stack+0x1c/0x5c [ 55.601385][ T4729] should_fail+0x3bc/0x514 [ 55.602166][ T4729] __should_failslab+0xbc/0x10c [ 55.603022][ T4729] should_failslab+0x10/0x28 [ 55.603826][ T4729] slab_pre_alloc_hook+0x64/0xe8 [ 55.604640][ T4729] kmem_cache_alloc+0x94/0x3d4 [ 55.605289][ T4729] btrfs_add_delayed_data_ref+0x160/0xd08 [ 55.606263][ T4729] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 55.607224][ T4729] btrfs_insert_replace_extent+0x840/0x9cc [ 55.608137][ T4729] btrfs_replace_file_extents+0x89c/0x1238 [ 55.609010][ T4729] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 55.609941][ T4729] btrfs_prealloc_file_range+0x60/0x7c [ 55.610793][ T4729] btrfs_fallocate+0x1354/0x1638 [ 55.611465][ T4729] vfs_fallocate+0x4a4/0x5f4 [ 55.612195][ T4729] ioctl_preallocate+0x234/0x2dc [ 55.613086][ T4729] do_vfs_ioctl+0x1aa4/0x23f0 [ 55.613897][ T4729] __arm64_sys_ioctl+0xe4/0x1c8 [ 55.614758][ T4729] invoke_syscall+0x98/0x2b0 [ 55.615521][ T4729] el0_svc_common+0x138/0x258 [ 55.616365][ T4729] do_el0_svc+0x58/0x13c [ 55.617038][ T4729] el0_svc+0x78/0x1d0 [ 55.617731][ T4729] el0t_64_sync_handler+0xcc/0xe4 [ 55.618554][ T4729] el0t_64_sync+0x1a0/0x1a4 [ 55.621061][ T4729] ------------[ cut here ]------------ [ 55.621968][ T4729] WARNING: CPU: 0 PID: 4729 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 55.623665][ T4729] Modules linked in: [ 55.624343][ T4729] CPU: 0 PID: 4729 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.625929][ T4729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.627600][ T4729] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.628942][ T4729] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 55.630028][ T4729] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 55.631058][ T4729] sp : ffff80001fb971e0 [ 55.631810][ T4729] x29: ffff80001fb97300 x28: dfff800000000000 x27: 0000000000000000 [ 55.633266][ T4729] x26: ffff0000c7a5c300 x25: ffff80001fb974e0 x24: ffff0000e2421d70 [ 55.634616][ T4729] x23: ffff700003f72e4c x22: 00000000fffffff4 x21: 1fffe0001bd11b29 [ 55.636157][ T4729] x20: ffff0000de88d8f0 x19: ffff0000de88d948 x18: 0000000000000001 [ 55.637565][ T4729] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 55.638814][ T4729] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 55.640133][ T4729] x11: 0000000000000000 x10: 0000000000000000 x9 : 08945d18f39f0e00 [ 55.641402][ T4729] x8 : 08945d18f39f0e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.642687][ T4729] x5 : ffff80001fb96af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 55.643981][ T4729] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.645339][ T4729] Call trace: [ 55.645922][ T4729] btrfs_replace_file_extents+0xcc4/0x1238 [ 55.646945][ T4729] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 55.647923][ T4729] btrfs_prealloc_file_range+0x60/0x7c [ 55.648747][ T4729] btrfs_fallocate+0x1354/0x1638 [ 55.649589][ T4729] vfs_fallocate+0x4a4/0x5f4 [ 55.650375][ T4729] ioctl_preallocate+0x234/0x2dc [ 55.651194][ T4729] do_vfs_ioctl+0x1aa4/0x23f0 [ 55.652021][ T4729] __arm64_sys_ioctl+0xe4/0x1c8 [ 55.652871][ T4729] invoke_syscall+0x98/0x2b0 [ 55.653662][ T4729] el0_svc_common+0x138/0x258 [ 55.654449][ T4729] do_el0_svc+0x58/0x13c [ 55.655241][ T4729] el0_svc+0x78/0x1d0 [ 55.655857][ T4729] el0t_64_sync_handler+0xcc/0xe4 [ 55.656723][ T4729] el0t_64_sync+0x1a0/0x1a4 [ 55.657450][ T4729] irq event stamp: 79966 [ 55.658074][ T4729] hardirqs last enabled at (79965): [] __up_console_sem+0xb4/0xfc [ 55.659563][ T4729] hardirqs last disabled at (79966): [] el1_dbg+0x24/0x80 [ 55.660910][ T4729] softirqs last enabled at (79946): [] handle_softirqs+0xa40/0xbe4 [ 55.662397][ T4729] softirqs last disabled at (79829): [] __irq_exit_rcu+0x240/0x43c [ 55.664068][ T4729] ---[ end trace 8d10d9358935fd41 ]--- [ 55.665566][ T4729] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 55.667265][ T4729] BTRFS info (device loop0): forced readonly [ 55.844155][ T4750] loop0: detected capacity change from 0 to 32768 [ 55.847965][ T4750] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4750) [ 55.851162][ T4750] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 55.852762][ T4750] BTRFS info (device loop0): using free space tree [ 55.853806][ T4750] BTRFS info (device loop0): has skinny extents [ 55.863259][ T4750] BTRFS info (device loop0): enabling ssd optimizations [ 55.867281][ T4750] FAULT_INJECTION: forcing a failure. [ 55.867281][ T4750] name failslab, interval 1, probability 0, space 0, times 0 [ 55.874010][ T4750] CPU: 0 PID: 4750 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.875596][ T4750] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.877479][ T4750] Call trace: [ 55.878025][ T4750] dump_backtrace+0x0/0x458 [ 55.878839][ T4750] show_stack+0x2c/0x3c [ 55.879534][ T4750] __dump_stack+0x30/0x40 [ 55.880357][ T4750] dump_stack_lvl+0xf4/0x15c [ 55.881105][ T4750] dump_stack+0x1c/0x5c [ 55.881747][ T4750] should_fail+0x3bc/0x514 [ 55.882388][ T4750] __should_failslab+0xbc/0x10c [ 55.883200][ T4750] should_failslab+0x10/0x28 [ 55.884019][ T4750] slab_pre_alloc_hook+0x64/0xe8 [ 55.884800][ T4750] kmem_cache_alloc+0x94/0x3d4 [ 55.885576][ T4750] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 55.886638][ T4750] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 55.887687][ T4750] btrfs_insert_replace_extent+0x840/0x9cc [ 55.888600][ T4750] btrfs_replace_file_extents+0x89c/0x1238 [ 55.889560][ T4750] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 55.890627][ T4750] btrfs_prealloc_file_range+0x60/0x7c [ 55.891531][ T4750] btrfs_fallocate+0x1354/0x1638 [ 55.892413][ T4750] vfs_fallocate+0x4a4/0x5f4 [ 55.893172][ T4750] ioctl_preallocate+0x234/0x2dc [ 55.893994][ T4750] do_vfs_ioctl+0x1aa4/0x23f0 [ 55.894803][ T4750] __arm64_sys_ioctl+0xe4/0x1c8 [ 55.895632][ T4750] invoke_syscall+0x98/0x2b0 [ 55.896392][ T4750] el0_svc_common+0x138/0x258 [ 55.897206][ T4750] do_el0_svc+0x58/0x13c [ 55.897971][ T4750] el0_svc+0x78/0x1d0 [ 55.898671][ T4750] el0t_64_sync_handler+0xcc/0xe4 [ 55.899517][ T4750] el0t_64_sync+0x1a0/0x1a4 [ 55.902686][ T4750] ------------[ cut here ]------------ [ 55.903625][ T4750] WARNING: CPU: 0 PID: 4750 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 55.905345][ T4750] Modules linked in: [ 55.905972][ T4750] CPU: 0 PID: 4750 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.907499][ T4750] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.909245][ T4750] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.910631][ T4750] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 55.911599][ T4750] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 55.912600][ T4750] sp : ffff8000200071e0 [ 55.913319][ T4750] x29: ffff800020007300 x28: dfff800000000000 x27: 0000000000000000 [ 55.914615][ T4750] x26: ffff0000d08b1500 x25: ffff8000200074e0 x24: ffff0000e2423ae0 [ 55.915959][ T4750] x23: ffff700004000e4c x22: 00000000fffffff4 x21: 1fffe0001a0a088f [ 55.917298][ T4750] x20: ffff0000d0504420 x19: ffff0000d0504478 x18: 0000000000000001 [ 55.918703][ T4750] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 55.920055][ T4750] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 55.921280][ T4750] x11: 0000000000000000 x10: 0000000000000000 x9 : e9735058453f5f00 [ 55.922412][ T4750] x8 : e9735058453f5f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.923613][ T4750] x5 : ffff800020006af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 55.924858][ T4750] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.925957][ T4750] Call trace: [ 55.926557][ T4750] btrfs_replace_file_extents+0xcc4/0x1238 [ 55.927453][ T4750] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 55.928457][ T4750] btrfs_prealloc_file_range+0x60/0x7c [ 55.929368][ T4750] btrfs_fallocate+0x1354/0x1638 [ 55.930228][ T4750] vfs_fallocate+0x4a4/0x5f4 [ 55.930951][ T4750] ioctl_preallocate+0x234/0x2dc [ 55.931750][ T4750] do_vfs_ioctl+0x1aa4/0x23f0 [ 55.932516][ T4750] __arm64_sys_ioctl+0xe4/0x1c8 [ 55.933316][ T4750] invoke_syscall+0x98/0x2b0 [ 55.934226][ T4750] el0_svc_common+0x138/0x258 [ 55.934971][ T4750] do_el0_svc+0x58/0x13c [ 55.935632][ T4750] el0_svc+0x78/0x1d0 [ 55.936291][ T4750] el0t_64_sync_handler+0xcc/0xe4 [ 55.937157][ T4750] el0t_64_sync+0x1a0/0x1a4 [ 55.937799][ T4750] irq event stamp: 79664 [ 55.938351][ T4750] hardirqs last enabled at (79663): [] __up_console_sem+0xb4/0xfc [ 55.939835][ T4750] hardirqs last disabled at (79664): [] el1_dbg+0x24/0x80 [ 55.941462][ T4750] softirqs last enabled at (79640): [] handle_softirqs+0xa40/0xbe4 [ 55.943088][ T4750] softirqs last disabled at (79481): [] __irq_exit_rcu+0x240/0x43c [ 55.944793][ T4750] ---[ end trace 8d10d9358935fd42 ]--- [ 55.947036][ T4750] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 55.950116][ T4750] BTRFS info (device loop0): forced readonly [ 56.028290][ T4515] Bluetooth: hci0: command 0x041b tx timeout [ 56.139059][ T4771] loop0: detected capacity change from 0 to 32768 [ 56.143098][ T4771] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4771) [ 56.147213][ T4771] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 56.148963][ T4771] BTRFS info (device loop0): using free space tree [ 56.150159][ T4771] BTRFS info (device loop0): has skinny extents [ 56.160686][ T4771] BTRFS info (device loop0): enabling ssd optimizations [ 56.164271][ T4771] FAULT_INJECTION: forcing a failure. [ 56.164271][ T4771] name failslab, interval 1, probability 0, space 0, times 0 [ 56.166569][ T4771] CPU: 1 PID: 4771 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.167705][ T4771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.169177][ T4771] Call trace: [ 56.169696][ T4771] dump_backtrace+0x0/0x458 [ 56.170453][ T4771] show_stack+0x2c/0x3c [ 56.171163][ T4771] __dump_stack+0x30/0x40 [ 56.171901][ T4771] dump_stack_lvl+0xf4/0x15c [ 56.172624][ T4771] dump_stack+0x1c/0x5c [ 56.173288][ T4771] should_fail+0x3bc/0x514 [ 56.173998][ T4771] __should_failslab+0xbc/0x10c [ 56.174782][ T4771] should_failslab+0x10/0x28 [ 56.175457][ T4771] slab_pre_alloc_hook+0x64/0xe8 [ 56.176209][ T4771] kmem_cache_alloc+0x94/0x3d4 [ 56.176958][ T4771] btrfs_add_delayed_data_ref+0x160/0xd08 [ 56.177818][ T4771] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 56.178839][ T4771] btrfs_insert_replace_extent+0x840/0x9cc [ 56.179796][ T4771] btrfs_replace_file_extents+0x89c/0x1238 [ 56.180805][ T4771] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 56.181772][ T4771] btrfs_prealloc_file_range+0x60/0x7c [ 56.182751][ T4771] btrfs_fallocate+0x1354/0x1638 [ 56.183579][ T4771] vfs_fallocate+0x4a4/0x5f4 [ 56.184425][ T4771] ioctl_preallocate+0x234/0x2dc [ 56.185272][ T4771] do_vfs_ioctl+0x1aa4/0x23f0 [ 56.186115][ T4771] __arm64_sys_ioctl+0xe4/0x1c8 [ 56.186883][ T4771] invoke_syscall+0x98/0x2b0 [ 56.187568][ T4771] el0_svc_common+0x138/0x258 [ 56.188212][ T4771] do_el0_svc+0x58/0x13c [ 56.188817][ T4771] el0_svc+0x78/0x1d0 [ 56.189444][ T4771] el0t_64_sync_handler+0xcc/0xe4 [ 56.190150][ T4771] el0t_64_sync+0x1a0/0x1a4 [ 56.192506][ T4771] ------------[ cut here ]------------ [ 56.193559][ T4771] WARNING: CPU: 1 PID: 4771 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 56.195133][ T4771] Modules linked in: [ 56.195760][ T4771] CPU: 1 PID: 4771 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.197293][ T4771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.198830][ T4771] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.200016][ T4771] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 56.200949][ T4771] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 56.201923][ T4771] sp : ffff8000200071e0 [ 56.202572][ T4771] x29: ffff800020007300 x28: dfff800000000000 x27: 0000000000000000 [ 56.203947][ T4771] x26: ffff0000d6967800 x25: ffff8000200074e0 x24: ffff0000de9ed850 [ 56.205190][ T4771] x23: ffff700004000e4c x22: 00000000fffffff4 x21: 1fffe0001a0a08bb [ 56.206482][ T4771] x20: ffff0000d0504580 x19: ffff0000d05045d8 x18: 0000000000000001 [ 56.207800][ T4771] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 56.209067][ T4771] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 56.210468][ T4771] x11: 0000000000000000 x10: 0000000000000000 x9 : 9a370255f156b400 [ 56.211861][ T4771] x8 : 9a370255f156b400 x7 : 0000000000000001 x6 : 0000000000000001 [ 56.213177][ T4771] x5 : ffff800020006af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 56.214528][ T4771] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 56.215716][ T4771] Call trace: [ 56.216352][ T4771] btrfs_replace_file_extents+0xcc4/0x1238 [ 56.217275][ T4771] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 56.218188][ T4771] btrfs_prealloc_file_range+0x60/0x7c [ 56.219038][ T4771] btrfs_fallocate+0x1354/0x1638 [ 56.219777][ T4771] vfs_fallocate+0x4a4/0x5f4 [ 56.220594][ T4771] ioctl_preallocate+0x234/0x2dc [ 56.221367][ T4771] do_vfs_ioctl+0x1aa4/0x23f0 [ 56.222145][ T4771] __arm64_sys_ioctl+0xe4/0x1c8 [ 56.222966][ T4771] invoke_syscall+0x98/0x2b0 [ 56.223807][ T4771] el0_svc_common+0x138/0x258 [ 56.224700][ T4771] do_el0_svc+0x58/0x13c [ 56.225426][ T4771] el0_svc+0x78/0x1d0 [ 56.226176][ T4771] el0t_64_sync_handler+0xcc/0xe4 [ 56.227087][ T4771] el0t_64_sync+0x1a0/0x1a4 [ 56.227871][ T4771] irq event stamp: 79732 [ 56.228532][ T4771] hardirqs last enabled at (79731): [] __up_console_sem+0xb4/0xfc [ 56.229980][ T4771] hardirqs last disabled at (79732): [] el1_dbg+0x24/0x80 [ 56.231412][ T4771] softirqs last enabled at (79712): [] handle_softirqs+0xa40/0xbe4 [ 56.232934][ T4771] softirqs last disabled at (79573): [] __irq_exit_rcu+0x240/0x43c [ 56.234468][ T4771] ---[ end trace 8d10d9358935fd43 ]--- [ 56.235766][ T4771] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 56.237391][ T4771] BTRFS info (device loop0): forced readonly [ 56.441106][ T4792] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4792) [ 56.444406][ T4792] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 56.446670][ T4792] BTRFS info (device loop0): using free space tree [ 56.447971][ T4792] BTRFS info (device loop0): has skinny extents [ 56.459614][ T4792] BTRFS info (device loop0): enabling ssd optimizations [ 56.463578][ T4792] FAULT_INJECTION: forcing a failure. [ 56.463578][ T4792] name failslab, interval 1, probability 0, space 0, times 0 [ 56.465838][ T4792] CPU: 1 PID: 4792 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.467314][ T4792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.469259][ T4792] Call trace: [ 56.469808][ T4792] dump_backtrace+0x0/0x458 [ 56.470563][ T4792] show_stack+0x2c/0x3c [ 56.471283][ T4792] __dump_stack+0x30/0x40 [ 56.471832][ T4792] dump_stack_lvl+0xf4/0x15c [ 56.472505][ T4792] dump_stack+0x1c/0x5c [ 56.473212][ T4792] should_fail+0x3bc/0x514 [ 56.473960][ T4792] __should_failslab+0xbc/0x10c [ 56.474763][ T4792] should_failslab+0x10/0x28 [ 56.475520][ T4792] slab_pre_alloc_hook+0x64/0xe8 [ 56.476330][ T4792] kmem_cache_alloc+0x94/0x3d4 [ 56.477080][ T4792] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 56.478069][ T4792] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 56.479080][ T4792] btrfs_insert_replace_extent+0x840/0x9cc [ 56.480051][ T4792] btrfs_replace_file_extents+0x89c/0x1238 [ 56.480965][ T4792] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 56.481880][ T4792] btrfs_prealloc_file_range+0x60/0x7c [ 56.482988][ T4792] btrfs_fallocate+0x1354/0x1638 [ 56.483970][ T4792] vfs_fallocate+0x4a4/0x5f4 [ 56.484723][ T4792] ioctl_preallocate+0x234/0x2dc [ 56.485486][ T4792] do_vfs_ioctl+0x1aa4/0x23f0 [ 56.486170][ T4792] __arm64_sys_ioctl+0xe4/0x1c8 [ 56.486890][ T4792] invoke_syscall+0x98/0x2b0 [ 56.487638][ T4792] el0_svc_common+0x138/0x258 [ 56.488330][ T4792] do_el0_svc+0x58/0x13c [ 56.489010][ T4792] el0_svc+0x78/0x1d0 [ 56.489600][ T4792] el0t_64_sync_handler+0xcc/0xe4 [ 56.490482][ T4792] el0t_64_sync+0x1a0/0x1a4 [ 56.493048][ T4792] ------------[ cut here ]------------ [ 56.494082][ T4792] WARNING: CPU: 1 PID: 4792 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 56.495788][ T4792] Modules linked in: [ 56.496419][ T4792] CPU: 1 PID: 4792 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.497938][ T4792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.499734][ T4792] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.501054][ T4792] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 56.502235][ T4792] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 56.503325][ T4792] sp : ffff8000202871e0 [ 56.503997][ T4792] x29: ffff800020287300 x28: dfff800000000000 x27: 0000000000000000 [ 56.505334][ T4792] x26: ffff0000d160c100 x25: ffff8000202874e0 x24: ffff0000de9ef5c0 [ 56.506629][ T4792] x23: ffff700004050e4c x22: 00000000fffffff4 x21: 1fffe0001a0a08e7 [ 56.507918][ T4792] x20: ffff0000d05046e0 x19: ffff0000d0504738 x18: 0000000000000001 [ 56.509128][ T4792] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 56.510430][ T4792] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 56.511840][ T4792] x11: 0000000000000000 x10: 0000000000000000 x9 : 94a79c14ead9d100 [ 56.513131][ T4792] x8 : 94a79c14ead9d100 x7 : 0000000000000001 x6 : 0000000000000001 [ 56.514422][ T4792] x5 : ffff800020286af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 56.515819][ T4792] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 56.517109][ T4792] Call trace: [ 56.517703][ T4792] btrfs_replace_file_extents+0xcc4/0x1238 [ 56.518684][ T4792] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 56.519658][ T4792] btrfs_prealloc_file_range+0x60/0x7c [ 56.520511][ T4792] btrfs_fallocate+0x1354/0x1638 [ 56.521230][ T4792] vfs_fallocate+0x4a4/0x5f4 [ 56.521974][ T4792] ioctl_preallocate+0x234/0x2dc [ 56.522835][ T4792] do_vfs_ioctl+0x1aa4/0x23f0 [ 56.523592][ T4792] __arm64_sys_ioctl+0xe4/0x1c8 [ 56.524459][ T4792] invoke_syscall+0x98/0x2b0 [ 56.525163][ T4792] el0_svc_common+0x138/0x258 [ 56.525895][ T4792] do_el0_svc+0x58/0x13c [ 56.526690][ T4792] el0_svc+0x78/0x1d0 [ 56.527525][ T4792] el0t_64_sync_handler+0xcc/0xe4 [ 56.528423][ T4792] el0t_64_sync+0x1a0/0x1a4 [ 56.529339][ T4792] irq event stamp: 79214 [ 56.530073][ T4792] hardirqs last enabled at (79213): [] __up_console_sem+0xb4/0xfc [ 56.531602][ T4792] hardirqs last disabled at (79214): [] el1_dbg+0x24/0x80 [ 56.532966][ T4792] softirqs last enabled at (79190): [] handle_softirqs+0xa40/0xbe4 [ 56.534481][ T4792] softirqs last disabled at (79173): [] __irq_exit_rcu+0x240/0x43c [ 56.536188][ T4792] ---[ end trace 8d10d9358935fd44 ]--- [ 56.538479][ T4792] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 56.539938][ T4792] BTRFS info (device loop0): forced readonly [ 56.729984][ T4813] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4813) [ 56.738842][ T4813] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 56.740401][ T4813] BTRFS info (device loop0): using free space tree [ 56.741519][ T4813] BTRFS info (device loop0): has skinny extents [ 56.753024][ T4813] BTRFS info (device loop0): enabling ssd optimizations [ 56.757267][ T4813] FAULT_INJECTION: forcing a failure. [ 56.757267][ T4813] name failslab, interval 1, probability 0, space 0, times 0 [ 56.759781][ T4813] CPU: 0 PID: 4813 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.761259][ T4813] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.762949][ T4813] Call trace: [ 56.763557][ T4813] dump_backtrace+0x0/0x458 [ 56.764374][ T4813] show_stack+0x2c/0x3c [ 56.765130][ T4813] __dump_stack+0x30/0x40 [ 56.765861][ T4813] dump_stack_lvl+0xf4/0x15c [ 56.766684][ T4813] dump_stack+0x1c/0x5c [ 56.767433][ T4813] should_fail+0x3bc/0x514 [ 56.768183][ T4813] __should_failslab+0xbc/0x10c [ 56.769021][ T4813] should_failslab+0x10/0x28 [ 56.769845][ T4813] slab_pre_alloc_hook+0x64/0xe8 [ 56.770779][ T4813] kmem_cache_alloc+0x94/0x3d4 [ 56.771633][ T4813] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 56.772650][ T4813] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 56.773769][ T4813] btrfs_insert_replace_extent+0x840/0x9cc [ 56.774546][ T4813] btrfs_replace_file_extents+0x89c/0x1238 [ 56.775452][ T4813] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 56.776489][ T4813] btrfs_prealloc_file_range+0x60/0x7c [ 56.777365][ T4813] btrfs_fallocate+0x1354/0x1638 [ 56.778235][ T4813] vfs_fallocate+0x4a4/0x5f4 [ 56.778971][ T4813] ioctl_preallocate+0x234/0x2dc [ 56.779818][ T4813] do_vfs_ioctl+0x1aa4/0x23f0 [ 56.780791][ T4813] __arm64_sys_ioctl+0xe4/0x1c8 [ 56.781679][ T4813] invoke_syscall+0x98/0x2b0 [ 56.782405][ T4813] el0_svc_common+0x138/0x258 [ 56.783224][ T4813] do_el0_svc+0x58/0x13c [ 56.784041][ T4813] el0_svc+0x78/0x1d0 [ 56.784698][ T4813] el0t_64_sync_handler+0xcc/0xe4 [ 56.785617][ T4813] el0t_64_sync+0x1a0/0x1a4 [ 56.787257][ T4813] ------------[ cut here ]------------ [ 56.788485][ T4813] WARNING: CPU: 0 PID: 4813 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 56.790077][ T4813] Modules linked in: [ 56.790683][ T4813] CPU: 0 PID: 4813 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.792263][ T4813] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.793939][ T4813] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.795297][ T4813] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 56.796331][ T4813] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 56.797414][ T4813] sp : ffff8000204b71e0 [ 56.798110][ T4813] x29: ffff8000204b7300 x28: dfff800000000000 x27: 0000000000000000 [ 56.799382][ T4813] x26: ffff0000d2630300 x25: ffff8000204b74e0 x24: ffff0000e2425850 [ 56.800648][ T4813] x23: ffff700004096e4c x22: 00000000fffffff4 x21: 1fffe0001bd11b6b [ 56.801917][ T4813] x20: ffff0000de88db00 x19: ffff0000de88db58 x18: 0000000000000001 [ 56.803298][ T4813] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 56.804622][ T4813] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 56.805850][ T4813] x11: 0000000000000000 x10: 0000000000000000 x9 : ce7135b15312b000 [ 56.807307][ T4813] x8 : ce7135b15312b000 x7 : 0000000000000001 x6 : 0000000000000001 [ 56.808645][ T4813] x5 : ffff8000204b6af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 56.810026][ T4813] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 56.811350][ T4813] Call trace: [ 56.811816][ T4813] btrfs_replace_file_extents+0xcc4/0x1238 [ 56.812631][ T4813] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 56.813426][ T4813] btrfs_prealloc_file_range+0x60/0x7c [ 56.814321][ T4813] btrfs_fallocate+0x1354/0x1638 [ 56.815231][ T4813] vfs_fallocate+0x4a4/0x5f4 [ 56.815986][ T4813] ioctl_preallocate+0x234/0x2dc [ 56.816789][ T4813] do_vfs_ioctl+0x1aa4/0x23f0 [ 56.817579][ T4813] __arm64_sys_ioctl+0xe4/0x1c8 [ 56.818451][ T4813] invoke_syscall+0x98/0x2b0 [ 56.819336][ T4813] el0_svc_common+0x138/0x258 [ 56.820206][ T4813] do_el0_svc+0x58/0x13c [ 56.821005][ T4813] el0_svc+0x78/0x1d0 [ 56.821639][ T4813] el0t_64_sync_handler+0xcc/0xe4 [ 56.822497][ T4813] el0t_64_sync+0x1a0/0x1a4 [ 56.823257][ T4813] irq event stamp: 79634 [ 56.824001][ T4813] hardirqs last enabled at (79633): [] __up_console_sem+0xb4/0xfc [ 56.825451][ T4813] hardirqs last disabled at (79634): [] el1_dbg+0x24/0x80 [ 56.826891][ T4813] softirqs last enabled at (79622): [] handle_softirqs+0xa40/0xbe4 [ 56.828556][ T4813] softirqs last disabled at (79527): [] __irq_exit_rcu+0x240/0x43c [ 56.830043][ T4813] ---[ end trace 8d10d9358935fd45 ]--- [ 56.831044][ T4813] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 56.832706][ T4813] BTRFS info (device loop0): forced readonly [ 57.007697][ T4836] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4836) [ 57.018859][ T4836] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 57.020368][ T4836] BTRFS info (device loop0): using free space tree [ 57.021383][ T4836] BTRFS info (device loop0): has skinny extents [ 57.033587][ T4836] BTRFS info (device loop0): enabling ssd optimizations [ 57.037627][ T4836] FAULT_INJECTION: forcing a failure. [ 57.037627][ T4836] name failslab, interval 1, probability 0, space 0, times 0 [ 57.040853][ T4836] CPU: 0 PID: 4836 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.042370][ T4836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.044042][ T4836] Call trace: [ 57.044654][ T4836] dump_backtrace+0x0/0x458 [ 57.045403][ T4836] show_stack+0x2c/0x3c [ 57.046129][ T4836] __dump_stack+0x30/0x40 [ 57.046925][ T4836] dump_stack_lvl+0xf4/0x15c [ 57.047706][ T4836] dump_stack+0x1c/0x5c [ 57.048425][ T4836] should_fail+0x3bc/0x514 [ 57.049194][ T4836] __should_failslab+0xbc/0x10c [ 57.049996][ T4836] should_failslab+0x10/0x28 [ 57.050840][ T4836] slab_pre_alloc_hook+0x64/0xe8 [ 57.051617][ T4836] kmem_cache_alloc+0x94/0x3d4 [ 57.052344][ T4836] alloc_extent_map+0x28/0x128 [ 57.053083][ T4836] btrfs_drop_extent_cache+0x164/0xd90 [ 57.054128][ T4836] btrfs_drop_extents+0x2e8/0x2254 [ 57.054955][ T4836] btrfs_replace_file_extents+0x338/0x1238 [ 57.056046][ T4836] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 57.057120][ T4836] btrfs_prealloc_file_range+0x60/0x7c [ 57.058115][ T4836] btrfs_fallocate+0x1354/0x1638 [ 57.059011][ T4836] vfs_fallocate+0x4a4/0x5f4 [ 57.059823][ T4836] ioctl_preallocate+0x234/0x2dc [ 57.060732][ T4836] do_vfs_ioctl+0x1aa4/0x23f0 [ 57.061548][ T4836] __arm64_sys_ioctl+0xe4/0x1c8 [ 57.062331][ T4836] invoke_syscall+0x98/0x2b0 [ 57.063059][ T4836] el0_svc_common+0x138/0x258 [ 57.063726][ T4836] do_el0_svc+0x58/0x13c [ 57.064416][ T4836] el0_svc+0x78/0x1d0 [ 57.065033][ T4836] el0t_64_sync_handler+0xcc/0xe4 [ 57.065857][ T4836] el0t_64_sync+0x1a0/0x1a4 1970/01/01 00:00:57 executed programs: 13 [ 57.259009][ T4857] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4857) [ 57.262750][ T4857] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 57.264467][ T4857] BTRFS info (device loop0): using free space tree [ 57.265689][ T4857] BTRFS info (device loop0): has skinny extents [ 57.277559][ T4857] BTRFS info (device loop0): enabling ssd optimizations [ 57.282482][ T4857] FAULT_INJECTION: forcing a failure. [ 57.282482][ T4857] name failslab, interval 1, probability 0, space 0, times 0 [ 57.284655][ T4857] CPU: 0 PID: 4857 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.286025][ T4857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.287638][ T4857] Call trace: [ 57.288175][ T4857] dump_backtrace+0x0/0x458 [ 57.288827][ T4857] show_stack+0x2c/0x3c [ 57.289512][ T4857] __dump_stack+0x30/0x40 [ 57.290199][ T4857] dump_stack_lvl+0xf4/0x15c [ 57.290933][ T4857] dump_stack+0x1c/0x5c [ 57.291559][ T4857] should_fail+0x3bc/0x514 [ 57.292265][ T4857] __should_failslab+0xbc/0x10c [ 57.293017][ T4857] should_failslab+0x10/0x28 [ 57.293702][ T4857] slab_pre_alloc_hook+0x64/0xe8 [ 57.294435][ T4857] kmem_cache_alloc+0x94/0x3d4 [ 57.295205][ T4857] btrfs_add_delayed_data_ref+0x160/0xd08 [ 57.296108][ T4857] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 57.297068][ T4857] btrfs_insert_replace_extent+0x840/0x9cc [ 57.298099][ T4857] btrfs_replace_file_extents+0x89c/0x1238 [ 57.299080][ T4857] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 57.300006][ T4857] btrfs_prealloc_file_range+0x60/0x7c [ 57.300890][ T4857] btrfs_fallocate+0x1354/0x1638 [ 57.301780][ T4857] vfs_fallocate+0x4a4/0x5f4 [ 57.302547][ T4857] ioctl_preallocate+0x234/0x2dc [ 57.303394][ T4857] do_vfs_ioctl+0x1aa4/0x23f0 [ 57.304240][ T4857] __arm64_sys_ioctl+0xe4/0x1c8 [ 57.305117][ T4857] invoke_syscall+0x98/0x2b0 [ 57.305913][ T4857] el0_svc_common+0x138/0x258 [ 57.306702][ T4857] do_el0_svc+0x58/0x13c [ 57.307430][ T4857] el0_svc+0x78/0x1d0 [ 57.308098][ T4857] el0t_64_sync_handler+0xcc/0xe4 [ 57.308840][ T4857] el0t_64_sync+0x1a0/0x1a4 [ 57.318714][ T4857] ------------[ cut here ]------------ [ 57.328831][ T4857] WARNING: CPU: 1 PID: 4857 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 57.330523][ T4857] Modules linked in: [ 57.331246][ T4857] CPU: 1 PID: 4857 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.332851][ T4857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.334642][ T4857] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 57.336038][ T4857] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 57.337161][ T4857] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 57.338324][ T4857] sp : ffff8000206471e0 [ 57.339034][ T4857] x29: ffff800020647300 x28: dfff800000000000 x27: 0000000000000000 [ 57.340330][ T4857] x26: ffff0000c9344000 x25: ffff8000206474e0 x24: ffff0000deb193a0 [ 57.341736][ T4857] x23: ffff7000040c8e4c x22: 00000000fffffff4 x21: 1fffe0001bd11bef [ 57.343202][ T4857] x20: ffff0000de88df20 x19: ffff0000de88df78 x18: 0000000000000001 [ 57.344403][ T4857] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 57.345796][ T4857] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 57.347184][ T4857] x11: 0000000000000000 x10: 0000000000000000 x9 : d2238df15467b600 [ 57.348525][ T4857] x8 : d2238df15467b600 x7 : 0000000000000001 x6 : 0000000000000001 [ 57.349886][ T4857] x5 : ffff800020646af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 57.351243][ T4857] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 57.352503][ T4857] Call trace: [ 57.353009][ T4857] btrfs_replace_file_extents+0xcc4/0x1238 [ 57.353947][ T4857] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 57.354938][ T4857] btrfs_prealloc_file_range+0x60/0x7c [ 57.355831][ T4857] btrfs_fallocate+0x1354/0x1638 [ 57.356629][ T4857] vfs_fallocate+0x4a4/0x5f4 [ 57.357432][ T4857] ioctl_preallocate+0x234/0x2dc [ 57.358239][ T4857] do_vfs_ioctl+0x1aa4/0x23f0 [ 57.359057][ T4857] __arm64_sys_ioctl+0xe4/0x1c8 [ 57.359992][ T4857] invoke_syscall+0x98/0x2b0 [ 57.360788][ T4857] el0_svc_common+0x138/0x258 [ 57.361492][ T4857] do_el0_svc+0x58/0x13c [ 57.362052][ T4857] el0_svc+0x78/0x1d0 [ 57.362698][ T4857] el0t_64_sync_handler+0xcc/0xe4 [ 57.363452][ T4857] el0t_64_sync+0x1a0/0x1a4 [ 57.364217][ T4857] irq event stamp: 80932 [ 57.364913][ T4857] hardirqs last enabled at (80931): [] __up_console_sem+0xb4/0xfc [ 57.366512][ T4857] hardirqs last disabled at (80932): [] el1_dbg+0x24/0x80 [ 57.368161][ T4857] softirqs last enabled at (80906): [] handle_softirqs+0xa40/0xbe4 [ 57.369860][ T4857] softirqs last disabled at (80819): [] __irq_exit_rcu+0x240/0x43c [ 57.371584][ T4857] ---[ end trace 8d10d9358935fd46 ]--- [ 57.375586][ T4857] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 57.377339][ T4857] BTRFS info (device loop0): forced readonly [ 57.608391][ T4878] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4878) [ 57.613227][ T4878] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 57.614872][ T4878] BTRFS info (device loop0): using free space tree [ 57.616124][ T4878] BTRFS info (device loop0): has skinny extents [ 57.627748][ T4878] BTRFS info (device loop0): enabling ssd optimizations [ 57.632023][ T4878] FAULT_INJECTION: forcing a failure. [ 57.632023][ T4878] name failslab, interval 1, probability 0, space 0, times 0 [ 57.634352][ T4878] CPU: 0 PID: 4878 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.635951][ T4878] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.637609][ T4878] Call trace: [ 57.638145][ T4878] dump_backtrace+0x0/0x458 [ 57.638856][ T4878] show_stack+0x2c/0x3c [ 57.639553][ T4878] __dump_stack+0x30/0x40 [ 57.640273][ T4878] dump_stack_lvl+0xf4/0x15c [ 57.640929][ T4878] dump_stack+0x1c/0x5c [ 57.641605][ T4878] should_fail+0x3bc/0x514 [ 57.642259][ T4878] __should_failslab+0xbc/0x10c [ 57.642978][ T4878] should_failslab+0x10/0x28 [ 57.643725][ T4878] slab_pre_alloc_hook+0x64/0xe8 [ 57.644609][ T4878] kmem_cache_alloc+0x94/0x3d4 [ 57.645372][ T4878] btrfs_add_delayed_data_ref+0x160/0xd08 [ 57.646336][ T4878] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 57.647283][ T4878] btrfs_insert_replace_extent+0x840/0x9cc [ 57.648265][ T4878] btrfs_replace_file_extents+0x89c/0x1238 [ 57.649237][ T4878] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 57.650209][ T4878] btrfs_prealloc_file_range+0x60/0x7c [ 57.651087][ T4878] btrfs_fallocate+0x1354/0x1638 [ 57.651885][ T4878] vfs_fallocate+0x4a4/0x5f4 [ 57.652563][ T4878] ioctl_preallocate+0x234/0x2dc [ 57.653429][ T4878] do_vfs_ioctl+0x1aa4/0x23f0 [ 57.654201][ T4878] __arm64_sys_ioctl+0xe4/0x1c8 [ 57.655024][ T4878] invoke_syscall+0x98/0x2b0 [ 57.655798][ T4878] el0_svc_common+0x138/0x258 [ 57.656548][ T4878] do_el0_svc+0x58/0x13c [ 57.657274][ T4878] el0_svc+0x78/0x1d0 [ 57.657922][ T4878] el0t_64_sync_handler+0xcc/0xe4 [ 57.658700][ T4878] el0t_64_sync+0x1a0/0x1a4 [ 57.659977][ T4878] ------------[ cut here ]------------ [ 57.661969][ T4878] WARNING: CPU: 0 PID: 4878 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 57.663583][ T4878] Modules linked in: [ 57.664178][ T4878] CPU: 0 PID: 4878 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.665837][ T4878] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.667489][ T4878] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 57.668759][ T4878] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 57.669832][ T4878] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 57.670945][ T4878] sp : ffff8000205d71e0 [ 57.671671][ T4878] x29: ffff8000205d7300 x28: dfff800000000000 x27: 0000000000000000 [ 57.673020][ T4878] x26: ffff0000c2694900 x25: ffff8000205d74e0 x24: ffff0000deb1b110 [ 57.674391][ T4878] x23: ffff7000040bae4c x22: 00000000fffffff4 x21: 1fffe0001bd11a0b [ 57.675926][ T4878] x20: ffff0000de88d000 x19: ffff0000de88d058 x18: 0000000000000001 [ 57.677293][ T4878] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 57.678686][ T4878] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 57.679955][ T4878] x11: 0000000000000000 x10: 0000000000000000 x9 : 4fbd48454f68ec00 [ 57.681323][ T4878] x8 : 4fbd48454f68ec00 x7 : 0000000000000001 x6 : 0000000000000001 [ 57.682851][ T4878] x5 : ffff8000205d6af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 57.683971][ T4878] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 57.685334][ T4878] Call trace: [ 57.685982][ T4878] btrfs_replace_file_extents+0xcc4/0x1238 [ 57.687038][ T4878] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 57.687984][ T4878] btrfs_prealloc_file_range+0x60/0x7c [ 57.688958][ T4878] btrfs_fallocate+0x1354/0x1638 [ 57.689828][ T4878] vfs_fallocate+0x4a4/0x5f4 [ 57.690622][ T4878] ioctl_preallocate+0x234/0x2dc [ 57.691479][ T4878] do_vfs_ioctl+0x1aa4/0x23f0 [ 57.692285][ T4878] __arm64_sys_ioctl+0xe4/0x1c8 [ 57.693097][ T4878] invoke_syscall+0x98/0x2b0 [ 57.693894][ T4878] el0_svc_common+0x138/0x258 [ 57.694685][ T4878] do_el0_svc+0x58/0x13c [ 57.695384][ T4878] el0_svc+0x78/0x1d0 [ 57.696059][ T4878] el0t_64_sync_handler+0xcc/0xe4 [ 57.696848][ T4878] el0t_64_sync+0x1a0/0x1a4 [ 57.697644][ T4878] irq event stamp: 80972 [ 57.698389][ T4878] hardirqs last enabled at (80971): [] __up_console_sem+0xb4/0xfc [ 57.700178][ T4878] hardirqs last disabled at (80972): [] el1_dbg+0x24/0x80 [ 57.701732][ T4878] softirqs last enabled at (80948): [] handle_softirqs+0xa40/0xbe4 [ 57.703350][ T4878] softirqs last disabled at (80859): [] __irq_exit_rcu+0x240/0x43c [ 57.704934][ T4878] ---[ end trace 8d10d9358935fd47 ]--- [ 57.706576][ T4878] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 57.708530][ T4878] BTRFS info (device loop0): forced readonly [ 57.887605][ T4899] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4899) [ 57.892153][ T4899] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 57.894223][ T4899] BTRFS info (device loop0): using free space tree [ 57.895400][ T4899] BTRFS info (device loop0): has skinny extents [ 57.907521][ T4899] BTRFS info (device loop0): enabling ssd optimizations [ 57.911298][ T4899] FAULT_INJECTION: forcing a failure. [ 57.911298][ T4899] name failslab, interval 1, probability 0, space 0, times 0 [ 57.913543][ T4899] CPU: 0 PID: 4899 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.914969][ T4899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.916767][ T4899] Call trace: [ 57.917370][ T4899] dump_backtrace+0x0/0x458 [ 57.918078][ T4899] show_stack+0x2c/0x3c [ 57.918793][ T4899] __dump_stack+0x30/0x40 [ 57.919550][ T4899] dump_stack_lvl+0xf4/0x15c [ 57.920369][ T4899] dump_stack+0x1c/0x5c [ 57.921116][ T4899] should_fail+0x3bc/0x514 [ 57.921891][ T4899] __should_failslab+0xbc/0x10c [ 57.922874][ T4899] should_failslab+0x10/0x28 [ 57.923680][ T4899] slab_pre_alloc_hook+0x64/0xe8 [ 57.924460][ T4899] kmem_cache_alloc+0x94/0x3d4 [ 57.925256][ T4899] btrfs_add_delayed_data_ref+0x160/0xd08 [ 57.926288][ T4899] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 57.927330][ T4899] btrfs_insert_replace_extent+0x840/0x9cc [ 57.928390][ T4899] btrfs_replace_file_extents+0x89c/0x1238 [ 57.929389][ T4899] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 57.930374][ T4899] btrfs_prealloc_file_range+0x60/0x7c [ 57.931380][ T4899] btrfs_fallocate+0x1354/0x1638 [ 57.932194][ T4899] vfs_fallocate+0x4a4/0x5f4 [ 57.932991][ T4899] ioctl_preallocate+0x234/0x2dc [ 57.933830][ T4899] do_vfs_ioctl+0x1aa4/0x23f0 [ 57.934633][ T4899] __arm64_sys_ioctl+0xe4/0x1c8 [ 57.935513][ T4899] invoke_syscall+0x98/0x2b0 [ 57.936290][ T4899] el0_svc_common+0x138/0x258 [ 57.937015][ T4899] do_el0_svc+0x58/0x13c [ 57.937753][ T4899] el0_svc+0x78/0x1d0 [ 57.938463][ T4899] el0t_64_sync_handler+0xcc/0xe4 [ 57.939344][ T4899] el0t_64_sync+0x1a0/0x1a4 [ 57.942243][ T4899] ------------[ cut here ]------------ [ 57.943248][ T4899] WARNING: CPU: 0 PID: 4899 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 57.944725][ T4899] Modules linked in: [ 57.945354][ T4899] CPU: 0 PID: 4899 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.946729][ T4899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.948327][ T4899] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 57.949514][ T4899] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 57.950670][ T4899] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 57.951720][ T4899] sp : ffff8000205d71e0 [ 57.952398][ T4899] x29: ffff8000205d7300 x28: dfff800000000000 x27: 0000000000000000 [ 57.953878][ T4899] x26: ffff0000caff0600 x25: ffff8000205d74e0 x24: ffff0000deb1c4b0 [ 57.955278][ T4899] x23: ffff7000040bae4c x22: 00000000fffffff4 x21: 1fffe0001bd25c21 [ 57.956681][ T4899] x20: ffff0000de92e0b0 x19: ffff0000de92e108 x18: 0000000000000001 [ 57.958133][ T4899] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 57.959471][ T4899] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 57.960763][ T4899] x11: 0000000000000000 x10: 0000000000000000 x9 : ac7ec54dec472900 [ 57.962090][ T4899] x8 : ac7ec54dec472900 x7 : 0000000000000001 x6 : 0000000000000001 [ 57.963417][ T4899] x5 : ffff8000205d6af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 57.964864][ T4899] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 57.966167][ T4899] Call trace: [ 57.966723][ T4899] btrfs_replace_file_extents+0xcc4/0x1238 [ 57.967701][ T4899] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 57.968689][ T4899] btrfs_prealloc_file_range+0x60/0x7c [ 57.969747][ T4899] btrfs_fallocate+0x1354/0x1638 [ 57.970545][ T4899] vfs_fallocate+0x4a4/0x5f4 [ 57.971295][ T4899] ioctl_preallocate+0x234/0x2dc [ 57.972208][ T4899] do_vfs_ioctl+0x1aa4/0x23f0 [ 57.973053][ T4899] __arm64_sys_ioctl+0xe4/0x1c8 [ 57.973903][ T4899] invoke_syscall+0x98/0x2b0 [ 57.974716][ T4899] el0_svc_common+0x138/0x258 [ 57.975529][ T4899] do_el0_svc+0x58/0x13c [ 57.976282][ T4899] el0_svc+0x78/0x1d0 [ 57.977006][ T4899] el0t_64_sync_handler+0xcc/0xe4 [ 57.977921][ T4899] el0t_64_sync+0x1a0/0x1a4 [ 57.978742][ T4899] irq event stamp: 80368 [ 57.979492][ T4899] hardirqs last enabled at (80367): [] __up_console_sem+0xb4/0xfc [ 57.981073][ T4899] hardirqs last disabled at (80368): [] el1_dbg+0x24/0x80 [ 57.982694][ T4899] softirqs last enabled at (80348): [] handle_softirqs+0xa40/0xbe4 [ 57.984383][ T4899] softirqs last disabled at (80219): [] __irq_exit_rcu+0x240/0x43c [ 57.986123][ T4899] ---[ end trace 8d10d9358935fd48 ]--- [ 57.987157][ T4899] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 57.988973][ T4899] BTRFS info (device loop0): forced readonly [ 58.107820][ T4522] Bluetooth: hci0: command 0x040f tx timeout [ 58.177346][ T4920] set_capacity_and_notify: 6 callbacks suppressed [ 58.177355][ T4920] loop0: detected capacity change from 0 to 32768 [ 58.183859][ T4920] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4920) [ 58.193964][ T4920] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 58.195550][ T4920] BTRFS info (device loop0): using free space tree [ 58.196669][ T4920] BTRFS info (device loop0): has skinny extents [ 58.209248][ T4920] BTRFS info (device loop0): enabling ssd optimizations [ 58.213169][ T4920] FAULT_INJECTION: forcing a failure. [ 58.213169][ T4920] name failslab, interval 1, probability 0, space 0, times 0 [ 58.215374][ T4920] CPU: 0 PID: 4920 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.216823][ T4920] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.218500][ T4920] Call trace: [ 58.219105][ T4920] dump_backtrace+0x0/0x458 [ 58.219823][ T4920] show_stack+0x2c/0x3c [ 58.220451][ T4920] __dump_stack+0x30/0x40 [ 58.221205][ T4920] dump_stack_lvl+0xf4/0x15c [ 58.222008][ T4920] dump_stack+0x1c/0x5c [ 58.222682][ T4920] should_fail+0x3bc/0x514 [ 58.229800][ T4920] __should_failslab+0xbc/0x10c [ 58.230643][ T4920] should_failslab+0x10/0x28 [ 58.231442][ T4920] slab_pre_alloc_hook+0x64/0xe8 [ 58.232170][ T4920] kmem_cache_alloc+0x94/0x3d4 [ 58.232823][ T4920] btrfs_add_delayed_data_ref+0x160/0xd08 [ 58.233691][ T4920] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 58.234751][ T4920] btrfs_insert_replace_extent+0x840/0x9cc [ 58.235743][ T4920] btrfs_replace_file_extents+0x89c/0x1238 [ 58.236745][ T4920] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 58.237660][ T4920] btrfs_prealloc_file_range+0x60/0x7c [ 58.238484][ T4920] btrfs_fallocate+0x1354/0x1638 [ 58.239296][ T4920] vfs_fallocate+0x4a4/0x5f4 [ 58.240049][ T4920] ioctl_preallocate+0x234/0x2dc [ 58.240794][ T4920] do_vfs_ioctl+0x1aa4/0x23f0 [ 58.241547][ T4920] __arm64_sys_ioctl+0xe4/0x1c8 [ 58.242327][ T4920] invoke_syscall+0x98/0x2b0 [ 58.243106][ T4920] el0_svc_common+0x138/0x258 [ 58.243879][ T4920] do_el0_svc+0x58/0x13c [ 58.244599][ T4920] el0_svc+0x78/0x1d0 [ 58.245215][ T4920] el0t_64_sync_handler+0xcc/0xe4 [ 58.246043][ T4920] el0t_64_sync+0x1a0/0x1a4 [ 58.247837][ T4920] ------------[ cut here ]------------ [ 58.248918][ T4920] WARNING: CPU: 1 PID: 4920 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 58.250700][ T4920] Modules linked in: [ 58.251397][ T4920] CPU: 1 PID: 4920 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.252964][ T4920] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.254693][ T4920] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 58.256005][ T4920] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 58.257078][ T4920] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 58.258174][ T4920] sp : ffff800020a571e0 [ 58.258867][ T4920] x29: ffff800020a57300 x28: dfff800000000000 x27: 0000000000000000 [ 58.260212][ T4920] x26: ffff0000c81c7700 x25: ffff800020a574e0 x24: ffff0000deb1e220 [ 58.261421][ T4920] x23: ffff70000414ae4c x22: 00000000fffffff4 x21: 1fffe0001bd25c4d [ 58.263021][ T4920] x20: ffff0000de92e210 x19: ffff0000de92e268 x18: 0000000000000001 [ 58.264474][ T4920] x17: 0000000000000000 x16: ffff800008304af8 x15: 00000000ffffffff [ 58.265903][ T4920] x14: 0000000000000001 x13: 1ffff0000414ad5c x12: 0000000000ff0100 [ 58.267153][ T4920] x11: 0000000000000000 x10: 0000000000000000 x9 : b4ddbd088c1a1f00 [ 58.268462][ T4920] x8 : b4ddbd088c1a1f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 58.269884][ T4920] x5 : ffff800020a56af8 x4 : ffff80001437f3e0 x3 : ffff800008304c08 [ 58.271196][ T4920] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 58.272539][ T4920] Call trace: [ 58.273049][ T4920] btrfs_replace_file_extents+0xcc4/0x1238 [ 58.274138][ T4920] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 58.275110][ T4920] btrfs_prealloc_file_range+0x60/0x7c [ 58.276077][ T4920] btrfs_fallocate+0x1354/0x1638 [ 58.276902][ T4920] vfs_fallocate+0x4a4/0x5f4 [ 58.277756][ T4920] ioctl_preallocate+0x234/0x2dc [ 58.278647][ T4920] do_vfs_ioctl+0x1aa4/0x23f0 [ 58.279432][ T4920] __arm64_sys_ioctl+0xe4/0x1c8 [ 58.280306][ T4920] invoke_syscall+0x98/0x2b0 [ 58.281155][ T4920] el0_svc_common+0x138/0x258 [ 58.282010][ T4920] do_el0_svc+0x58/0x13c [ 58.282750][ T4920] el0_svc+0x78/0x1d0 [ 58.283373][ T4920] el0t_64_sync_handler+0xcc/0xe4 [ 58.284266][ T4920] el0t_64_sync+0x1a0/0x1a4 [ 58.285116][ T4920] irq event stamp: 79662 [ 58.285836][ T4920] hardirqs last enabled at (79661): [] __up_console_sem+0xb4/0xfc [ 58.287503][ T4920] hardirqs last disabled at (79662): [] el1_dbg+0x24/0x80 [ 58.289078][ T4920] softirqs last enabled at (79642): [] handle_softirqs+0xa40/0xbe4 [ 58.290813][ T4920] softirqs last disabled at (79615): [] __irq_exit_rcu+0x240/0x43c [ 58.292469][ T4920] ---[ end trace 8d10d9358935fd49 ]--- [ 58.294609][ T4920] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 58.296396][ T4920] BTRFS info (device loop0): forced readonly [ 58.503557][ T4941] loop0: detected capacity change from 0 to 32768 [ 58.506407][ T4941] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4941) [ 58.511476][ T4941] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 58.512988][ T4941] BTRFS info (device loop0): using free space tree [ 58.514169][ T4941] BTRFS info (device loop0): has skinny extents [ 58.531802][ T4941] BTRFS info (device loop0): enabling ssd optimizations [ 58.536270][ T4941] FAULT_INJECTION: forcing a failure. [ 58.536270][ T4941] name failslab, interval 1, probability 0, space 0, times 0 [ 58.539134][ T4941] CPU: 1 PID: 4941 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.540633][ T4941] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.542374][ T4941] Call trace: [ 58.542917][ T4941] dump_backtrace+0x0/0x458 [ 58.543729][ T4941] show_stack+0x2c/0x3c [ 58.544454][ T4941] __dump_stack+0x30/0x40 [ 58.545193][ T4941] dump_stack_lvl+0xf4/0x15c [ 58.546037][ T4941] dump_stack+0x1c/0x5c [ 58.546702][ T4941] should_fail+0x3bc/0x514 [ 58.547438][ T4941] __should_failslab+0xbc/0x10c [ 58.548206][ T4941] should_failslab+0x10/0x28 [ 58.549074][ T4941] slab_pre_alloc_hook+0x64/0xe8 [ 58.549849][ T4941] kmem_cache_alloc+0x94/0x3d4 [ 58.550658][ T4941] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 58.551755][ T4941] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 58.552807][ T4941] btrfs_insert_replace_extent+0x840/0x9cc [ 58.553743][ T4941] btrfs_replace_file_extents+0x89c/0x1238 [ 58.554755][ T4941] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 58.555627][ T4941] btrfs_prealloc_file_range+0x60/0x7c [ 58.556587][ T4941] btrfs_fallocate+0x1354/0x1638 [ 58.557433][ T4941] vfs_fallocate+0x4a4/0x5f4 [ 58.558254][ T4941] ioctl_preallocate+0x234/0x2dc [ 58.559065][ T4941] do_vfs_ioctl+0x1aa4/0x23f0 [ 58.559815][ T4941] __arm64_sys_ioctl+0xe4/0x1c8 [ 58.560755][ T4941] invoke_syscall+0x98/0x2b0 [ 58.561575][ T4941] el0_svc_common+0x138/0x258 [ 58.562408][ T4941] do_el0_svc+0x58/0x13c [ 58.563189][ T4941] el0_svc+0x78/0x1d0 [ 58.563855][ T4941] el0t_64_sync_handler+0xcc/0xe4 [ 58.564760][ T4941] el0t_64_sync+0x1a0/0x1a4 [ 58.566458][ T4941] ------------[ cut here ]------------ [ 58.567414][ T4941] WARNING: CPU: 1 PID: 4941 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 58.569114][ T4941] Modules linked in: [ 58.569753][ T4941] CPU: 1 PID: 4941 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.571424][ T4941] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.573246][ T4941] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 58.574623][ T4941] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 58.575715][ T4941] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 58.576814][ T4941] sp : ffff8000205d71e0 [ 58.577552][ T4941] x29: ffff8000205d7300 x28: dfff800000000000 x27: 0000000000000000 [ 58.578782][ T4941] x26: ffff0000d1394b00 x25: ffff8000205d74e0 x24: ffff0000debab110 [ 58.580008][ T4941] x23: ffff7000040bae4c x22: 00000000fffffff4 x21: 1fffe0001a0a0913 [ 58.581229][ T4941] x20: ffff0000d0504840 x19: ffff0000d0504898 x18: 0000000000000001 [ 58.582551][ T4941] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 58.583853][ T4941] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 58.585217][ T4941] x11: 0000000000000000 x10: 0000000000000000 x9 : 894d05f7694de200 [ 58.586638][ T4941] x8 : 894d05f7694de200 x7 : 0000000000000001 x6 : 0000000000000001 [ 58.588049][ T4941] x5 : ffff8000205d6af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 58.589416][ T4941] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 58.590796][ T4941] Call trace: [ 58.591281][ T4941] btrfs_replace_file_extents+0xcc4/0x1238 [ 58.592329][ T4941] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 58.593350][ T4941] btrfs_prealloc_file_range+0x60/0x7c [ 58.594334][ T4941] btrfs_fallocate+0x1354/0x1638 [ 58.595163][ T4941] vfs_fallocate+0x4a4/0x5f4 [ 58.595977][ T4941] ioctl_preallocate+0x234/0x2dc [ 58.596799][ T4941] do_vfs_ioctl+0x1aa4/0x23f0 [ 58.597549][ T4941] __arm64_sys_ioctl+0xe4/0x1c8 [ 58.598431][ T4941] invoke_syscall+0x98/0x2b0 [ 58.599270][ T4941] el0_svc_common+0x138/0x258 [ 58.600098][ T4941] do_el0_svc+0x58/0x13c [ 58.600788][ T4941] el0_svc+0x78/0x1d0 [ 58.601467][ T4941] el0t_64_sync_handler+0xcc/0xe4 [ 58.602352][ T4941] el0t_64_sync+0x1a0/0x1a4 [ 58.603132][ T4941] irq event stamp: 80710 [ 58.603862][ T4941] hardirqs last enabled at (80709): [] __up_console_sem+0xb4/0xfc [ 58.605691][ T4941] hardirqs last disabled at (80710): [] el1_dbg+0x24/0x80 [ 58.607188][ T4941] softirqs last enabled at (80686): [] handle_softirqs+0xa40/0xbe4 [ 58.608830][ T4941] softirqs last disabled at (80661): [] __irq_exit_rcu+0x240/0x43c [ 58.610446][ T4941] ---[ end trace 8d10d9358935fd4a ]--- [ 58.612701][ T4941] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 58.614639][ T4941] BTRFS info (device loop0): forced readonly [ 58.805217][ T4962] loop0: detected capacity change from 0 to 32768 [ 58.807892][ T4962] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4962) [ 58.811874][ T4962] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 58.813853][ T4962] BTRFS info (device loop0): using free space tree [ 58.815039][ T4962] BTRFS info (device loop0): has skinny extents [ 58.834621][ T4962] BTRFS info (device loop0): enabling ssd optimizations [ 58.839157][ T4962] FAULT_INJECTION: forcing a failure. [ 58.839157][ T4962] name failslab, interval 1, probability 0, space 0, times 0 [ 58.841532][ T4962] CPU: 1 PID: 4962 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.843025][ T4962] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.844805][ T4962] Call trace: [ 58.845365][ T4962] dump_backtrace+0x0/0x458 [ 58.846106][ T4962] show_stack+0x2c/0x3c [ 58.846868][ T4962] __dump_stack+0x30/0x40 [ 58.847617][ T4962] dump_stack_lvl+0xf4/0x15c [ 58.848400][ T4962] dump_stack+0x1c/0x5c [ 58.849127][ T4962] should_fail+0x3bc/0x514 [ 58.849936][ T4962] __should_failslab+0xbc/0x10c [ 58.850794][ T4962] should_failslab+0x10/0x28 [ 58.851496][ T4962] slab_pre_alloc_hook+0x64/0xe8 [ 58.852392][ T4962] kmem_cache_alloc+0x94/0x3d4 [ 58.853207][ T4962] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 58.854224][ T4962] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 58.855312][ T4962] btrfs_insert_replace_extent+0x840/0x9cc [ 58.856340][ T4962] btrfs_replace_file_extents+0x89c/0x1238 [ 58.857347][ T4962] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 58.858289][ T4962] btrfs_prealloc_file_range+0x60/0x7c [ 58.859227][ T4962] btrfs_fallocate+0x1354/0x1638 [ 58.860067][ T4962] vfs_fallocate+0x4a4/0x5f4 [ 58.860846][ T4962] ioctl_preallocate+0x234/0x2dc [ 58.861711][ T4962] do_vfs_ioctl+0x1aa4/0x23f0 [ 58.862538][ T4962] __arm64_sys_ioctl+0xe4/0x1c8 [ 58.863426][ T4962] invoke_syscall+0x98/0x2b0 [ 58.864230][ T4962] el0_svc_common+0x138/0x258 [ 58.865068][ T4962] do_el0_svc+0x58/0x13c [ 58.865742][ T4962] el0_svc+0x78/0x1d0 [ 58.866310][ T4962] el0t_64_sync_handler+0xcc/0xe4 [ 58.867014][ T4962] el0t_64_sync+0x1a0/0x1a4 [ 58.869590][ T4962] ------------[ cut here ]------------ [ 58.870561][ T4962] WARNING: CPU: 1 PID: 4962 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 58.872340][ T4962] Modules linked in: [ 58.873085][ T4962] CPU: 1 PID: 4962 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.874593][ T4962] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.876281][ T4962] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 58.877661][ T4962] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 58.878765][ T4962] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 58.879735][ T4962] sp : ffff8000210971e0 [ 58.880470][ T4962] x29: ffff800021097300 x28: dfff800000000000 x27: 0000000000000000 [ 58.881799][ T4962] x26: ffff0000c993f300 x25: ffff8000210974e0 x24: ffff0000deba93a0 [ 58.883113][ T4962] x23: ffff700004212e4c x22: 00000000fffffff4 x21: 1fffe0001a0a093f [ 58.884522][ T4962] x20: ffff0000d05049a0 x19: ffff0000d05049f8 x18: 0000000000000001 [ 58.885918][ T4962] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 58.887411][ T4962] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 58.888902][ T4962] x11: 0000000000000000 x10: 0000000000000000 x9 : a7375ae183e79f00 [ 58.890362][ T4962] x8 : a7375ae183e79f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 58.891697][ T4962] x5 : ffff800021096af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 58.893138][ T4962] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 58.894561][ T4962] Call trace: [ 58.895147][ T4962] btrfs_replace_file_extents+0xcc4/0x1238 [ 58.896133][ T4962] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 58.897060][ T4962] btrfs_prealloc_file_range+0x60/0x7c [ 58.897923][ T4962] btrfs_fallocate+0x1354/0x1638 [ 58.898800][ T4962] vfs_fallocate+0x4a4/0x5f4 [ 58.899535][ T4962] ioctl_preallocate+0x234/0x2dc [ 58.900392][ T4962] do_vfs_ioctl+0x1aa4/0x23f0 [ 58.901115][ T4962] __arm64_sys_ioctl+0xe4/0x1c8 [ 58.901959][ T4962] invoke_syscall+0x98/0x2b0 [ 58.902694][ T4962] el0_svc_common+0x138/0x258 [ 58.903549][ T4962] do_el0_svc+0x58/0x13c [ 58.904290][ T4962] el0_svc+0x78/0x1d0 [ 58.904998][ T4962] el0t_64_sync_handler+0xcc/0xe4 [ 58.905924][ T4962] el0t_64_sync+0x1a0/0x1a4 [ 58.906692][ T4962] irq event stamp: 79756 [ 58.907463][ T4962] hardirqs last enabled at (79755): [] __up_console_sem+0xb4/0xfc [ 58.909183][ T4962] hardirqs last disabled at (79756): [] el1_dbg+0x24/0x80 [ 58.910764][ T4962] softirqs last enabled at (79732): [] handle_softirqs+0xa40/0xbe4 [ 58.912389][ T4962] softirqs last disabled at (79713): [] __irq_exit_rcu+0x240/0x43c [ 58.913871][ T4962] ---[ end trace 8d10d9358935fd4b ]--- [ 58.916111][ T4962] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 58.917641][ T4962] BTRFS info (device loop0): forced readonly [ 59.112809][ T4983] loop0: detected capacity change from 0 to 32768 [ 59.115481][ T4983] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4983) [ 59.120017][ T4983] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 59.121745][ T4983] BTRFS info (device loop0): using free space tree [ 59.122990][ T4983] BTRFS info (device loop0): has skinny extents [ 59.132576][ T4983] BTRFS info (device loop0): enabling ssd optimizations [ 59.138663][ T4983] FAULT_INJECTION: forcing a failure. [ 59.138663][ T4983] name failslab, interval 1, probability 0, space 0, times 0 [ 59.141111][ T4983] CPU: 1 PID: 4983 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.142666][ T4983] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.144462][ T4983] Call trace: [ 59.145039][ T4983] dump_backtrace+0x0/0x458 [ 59.145860][ T4983] show_stack+0x2c/0x3c [ 59.146558][ T4983] __dump_stack+0x30/0x40 [ 59.147220][ T4983] dump_stack_lvl+0xf4/0x15c [ 59.147956][ T4983] dump_stack+0x1c/0x5c [ 59.148600][ T4983] should_fail+0x3bc/0x514 [ 59.149271][ T4983] __should_failslab+0xbc/0x10c [ 59.150086][ T4983] should_failslab+0x10/0x28 [ 59.150845][ T4983] slab_pre_alloc_hook+0x64/0xe8 [ 59.151729][ T4983] kmem_cache_alloc+0x94/0x3d4 [ 59.152585][ T4983] alloc_extent_map+0x28/0x128 [ 59.153439][ T4983] btrfs_drop_extent_cache+0x164/0xd90 [ 59.154402][ T4983] btrfs_drop_extents+0x2e8/0x2254 [ 59.155237][ T4983] btrfs_replace_file_extents+0x338/0x1238 [ 59.156185][ T4983] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 59.157155][ T4983] btrfs_prealloc_file_range+0x60/0x7c [ 59.158117][ T4983] btrfs_fallocate+0x1354/0x1638 [ 59.159005][ T4983] vfs_fallocate+0x4a4/0x5f4 [ 59.159922][ T4983] ioctl_preallocate+0x234/0x2dc [ 59.160774][ T4983] do_vfs_ioctl+0x1aa4/0x23f0 [ 59.161579][ T4983] __arm64_sys_ioctl+0xe4/0x1c8 [ 59.162335][ T4983] invoke_syscall+0x98/0x2b0 [ 59.163050][ T4983] el0_svc_common+0x138/0x258 [ 59.163931][ T4983] do_el0_svc+0x58/0x13c [ 59.164638][ T4983] el0_svc+0x78/0x1d0 [ 59.165319][ T4983] el0t_64_sync_handler+0xcc/0xe4 [ 59.166248][ T4983] el0t_64_sync+0x1a0/0x1a4 [ 59.362245][ T5004] loop0: detected capacity change from 0 to 32768 [ 59.364889][ T5004] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5004) [ 59.368864][ T5004] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 59.370497][ T5004] BTRFS info (device loop0): using free space tree [ 59.371612][ T5004] BTRFS info (device loop0): has skinny extents [ 59.383048][ T5004] BTRFS info (device loop0): enabling ssd optimizations [ 59.386947][ T5004] FAULT_INJECTION: forcing a failure. [ 59.386947][ T5004] name failslab, interval 1, probability 0, space 0, times 0 [ 59.389738][ T5004] CPU: 0 PID: 5004 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.391216][ T5004] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.392986][ T5004] Call trace: [ 59.393505][ T5004] dump_backtrace+0x0/0x458 [ 59.394248][ T5004] show_stack+0x2c/0x3c [ 59.394961][ T5004] __dump_stack+0x30/0x40 [ 59.395680][ T5004] dump_stack_lvl+0xf4/0x15c [ 59.396419][ T5004] dump_stack+0x1c/0x5c [ 59.397059][ T5004] should_fail+0x3bc/0x514 [ 59.397818][ T5004] __should_failslab+0xbc/0x10c [ 59.398678][ T5004] should_failslab+0x10/0x28 [ 59.399442][ T5004] slab_pre_alloc_hook+0x64/0xe8 [ 59.400318][ T5004] kmem_cache_alloc+0x94/0x3d4 [ 59.401105][ T5004] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 59.402068][ T5004] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 59.403057][ T5004] btrfs_insert_replace_extent+0x840/0x9cc [ 59.404145][ T5004] btrfs_replace_file_extents+0x89c/0x1238 [ 59.405187][ T5004] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 59.406163][ T5004] btrfs_prealloc_file_range+0x60/0x7c [ 59.407089][ T5004] btrfs_fallocate+0x1354/0x1638 [ 59.407861][ T5004] vfs_fallocate+0x4a4/0x5f4 [ 59.408615][ T5004] ioctl_preallocate+0x234/0x2dc [ 59.409500][ T5004] do_vfs_ioctl+0x1aa4/0x23f0 [ 59.410312][ T5004] __arm64_sys_ioctl+0xe4/0x1c8 [ 59.411125][ T5004] invoke_syscall+0x98/0x2b0 [ 59.411966][ T5004] el0_svc_common+0x138/0x258 [ 59.412780][ T5004] do_el0_svc+0x58/0x13c [ 59.413504][ T5004] el0_svc+0x78/0x1d0 [ 59.414158][ T5004] el0t_64_sync_handler+0xcc/0xe4 [ 59.415005][ T5004] el0t_64_sync+0x1a0/0x1a4 [ 59.417425][ T5004] ------------[ cut here ]------------ [ 59.418524][ T5004] WARNING: CPU: 0 PID: 5004 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 59.420320][ T5004] Modules linked in: [ 59.421024][ T5004] CPU: 0 PID: 5004 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.422622][ T5004] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.424336][ T5004] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 59.425602][ T5004] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 59.426582][ T5004] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 59.427623][ T5004] sp : ffff8000210a71e0 [ 59.428289][ T5004] x29: ffff8000210a7300 x28: dfff800000000000 x27: 0000000000000000 [ 59.429588][ T5004] x26: ffff0000d23e9f00 x25: ffff8000210a74e0 x24: ffff0000dea09d70 [ 59.430913][ T5004] x23: ffff700004214e4c x22: 00000000fffffff4 x21: 1fffe0001bd25c79 [ 59.432226][ T5004] x20: ffff0000de92e370 x19: ffff0000de92e3c8 x18: 0000000000000001 [ 59.433587][ T5004] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 59.435042][ T5004] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 59.436298][ T5004] x11: 0000000000000000 x10: 0000000000000000 x9 : c8cdb79778427d00 [ 59.437577][ T5004] x8 : c8cdb79778427d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 59.438871][ T5004] x5 : ffff8000210a6af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 59.440149][ T5004] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 59.441387][ T5004] Call trace: [ 59.441892][ T5004] btrfs_replace_file_extents+0xcc4/0x1238 [ 59.442786][ T5004] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 59.443840][ T5004] btrfs_prealloc_file_range+0x60/0x7c [ 59.444732][ T5004] btrfs_fallocate+0x1354/0x1638 [ 59.445509][ T5004] vfs_fallocate+0x4a4/0x5f4 [ 59.446164][ T5004] ioctl_preallocate+0x234/0x2dc [ 59.446914][ T5004] do_vfs_ioctl+0x1aa4/0x23f0 [ 59.447611][ T5004] __arm64_sys_ioctl+0xe4/0x1c8 [ 59.448320][ T5004] invoke_syscall+0x98/0x2b0 [ 59.449099][ T5004] el0_svc_common+0x138/0x258 [ 59.449869][ T5004] do_el0_svc+0x58/0x13c [ 59.450554][ T5004] el0_svc+0x78/0x1d0 [ 59.451171][ T5004] el0t_64_sync_handler+0xcc/0xe4 [ 59.451995][ T5004] el0t_64_sync+0x1a0/0x1a4 [ 59.452718][ T5004] irq event stamp: 79576 [ 59.453392][ T5004] hardirqs last enabled at (79575): [] __up_console_sem+0xb4/0xfc [ 59.454959][ T5004] hardirqs last disabled at (79576): [] el1_dbg+0x24/0x80 [ 59.456372][ T5004] softirqs last enabled at (79546): [] handle_softirqs+0xa40/0xbe4 [ 59.457845][ T5004] softirqs last disabled at (79439): [] __irq_exit_rcu+0x240/0x43c [ 59.459303][ T5004] ---[ end trace 8d10d9358935fd4c ]--- [ 59.460428][ T5004] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 59.461926][ T5004] BTRFS info (device loop0): forced readonly [ 59.665054][ T5025] loop0: detected capacity change from 0 to 32768 [ 59.667989][ T5025] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5025) [ 59.672273][ T5025] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 59.673922][ T5025] BTRFS info (device loop0): using free space tree [ 59.675149][ T5025] BTRFS info (device loop0): has skinny extents [ 59.691017][ T5025] BTRFS info (device loop0): enabling ssd optimizations [ 59.694893][ T5025] FAULT_INJECTION: forcing a failure. [ 59.694893][ T5025] name failslab, interval 1, probability 0, space 0, times 0 [ 59.696964][ T5025] CPU: 0 PID: 5025 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.698031][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.699720][ T5025] Call trace: [ 59.700176][ T5025] dump_backtrace+0x0/0x458 [ 59.700909][ T5025] show_stack+0x2c/0x3c [ 59.701658][ T5025] __dump_stack+0x30/0x40 [ 59.702370][ T5025] dump_stack_lvl+0xf4/0x15c [ 59.703174][ T5025] dump_stack+0x1c/0x5c [ 59.703867][ T5025] should_fail+0x3bc/0x514 [ 59.704666][ T5025] __should_failslab+0xbc/0x10c [ 59.705489][ T5025] should_failslab+0x10/0x28 [ 59.706278][ T5025] slab_pre_alloc_hook+0x64/0xe8 [ 59.707018][ T5025] kmem_cache_alloc+0x94/0x3d4 [ 59.707781][ T5025] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 59.708649][ T5025] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 59.709554][ T5025] btrfs_insert_replace_extent+0x840/0x9cc [ 59.710435][ T5025] btrfs_replace_file_extents+0x89c/0x1238 [ 59.711410][ T5025] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 59.712374][ T5025] btrfs_prealloc_file_range+0x60/0x7c [ 59.713203][ T5025] btrfs_fallocate+0x1354/0x1638 [ 59.713939][ T5025] vfs_fallocate+0x4a4/0x5f4 [ 59.714625][ T5025] ioctl_preallocate+0x234/0x2dc [ 59.715543][ T5025] do_vfs_ioctl+0x1aa4/0x23f0 [ 59.716345][ T5025] __arm64_sys_ioctl+0xe4/0x1c8 [ 59.717162][ T5025] invoke_syscall+0x98/0x2b0 [ 59.717925][ T5025] el0_svc_common+0x138/0x258 [ 59.718756][ T5025] do_el0_svc+0x58/0x13c [ 59.719478][ T5025] el0_svc+0x78/0x1d0 [ 59.720172][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 59.720996][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 59.722690][ T5025] ------------[ cut here ]------------ [ 59.723740][ T5025] WARNING: CPU: 0 PID: 5025 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 59.725404][ T5025] Modules linked in: [ 59.726124][ T5025] CPU: 0 PID: 5025 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.727625][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.729391][ T5025] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 59.730850][ T5025] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 59.731982][ T5025] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 59.732994][ T5025] sp : ffff8000210a71e0 [ 59.733670][ T5025] x29: ffff8000210a7300 x28: dfff800000000000 x27: 0000000000000000 [ 59.735146][ T5025] x26: ffff0000c9074500 x25: ffff8000210a74e0 x24: ffff0000dea0bae0 [ 59.736555][ T5025] x23: ffff700004214e4c x22: 00000000fffffff4 x21: 1fffe0001bd25ca5 [ 59.738053][ T5025] x20: ffff0000de92e4d0 x19: ffff0000de92e528 x18: 0000000000000001 [ 59.739642][ T5025] x17: 0000000000000000 x16: ffff800008304af8 x15: 00000000ffffffff [ 59.741008][ T5025] x14: 0000000000000001 x13: 1ffff00004214d5c x12: 0000000000ff0100 [ 59.742448][ T5025] x11: 0000000000000000 x10: 0000000000000000 x9 : 7de4c912eea46600 [ 59.743921][ T5025] x8 : 7de4c912eea46600 x7 : 0000000000000001 x6 : 0000000000000001 [ 59.745223][ T5025] x5 : ffff8000210a6af8 x4 : ffff80001437f3e0 x3 : ffff800008304c08 [ 59.746575][ T5025] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 59.748046][ T5025] Call trace: [ 59.748596][ T5025] btrfs_replace_file_extents+0xcc4/0x1238 [ 59.749555][ T5025] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 59.750510][ T5025] btrfs_prealloc_file_range+0x60/0x7c [ 59.751437][ T5025] btrfs_fallocate+0x1354/0x1638 [ 59.752253][ T5025] vfs_fallocate+0x4a4/0x5f4 [ 59.752941][ T5025] ioctl_preallocate+0x234/0x2dc [ 59.753716][ T5025] do_vfs_ioctl+0x1aa4/0x23f0 [ 59.754462][ T5025] __arm64_sys_ioctl+0xe4/0x1c8 [ 59.755332][ T5025] invoke_syscall+0x98/0x2b0 [ 59.756091][ T5025] el0_svc_common+0x138/0x258 [ 59.756783][ T5025] do_el0_svc+0x58/0x13c [ 59.757509][ T5025] el0_svc+0x78/0x1d0 [ 59.758161][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 59.758952][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 59.759679][ T5025] irq event stamp: 79744 [ 59.760371][ T5025] hardirqs last enabled at (79743): [] __up_console_sem+0xb4/0xfc [ 59.761789][ T5025] hardirqs last disabled at (79744): [] el1_dbg+0x24/0x80 [ 59.763088][ T5025] softirqs last enabled at (79720): [] handle_softirqs+0xa40/0xbe4 [ 59.764826][ T5025] softirqs last disabled at (79651): [] __irq_exit_rcu+0x240/0x43c [ 59.766322][ T5025] ---[ end trace 8d10d9358935fd4d ]--- [ 59.768129][ T5025] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 59.769914][ T5025] BTRFS info (device loop0): forced readonly [ 59.985201][ T5046] loop0: detected capacity change from 0 to 32768 [ 59.987935][ T5046] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5046) [ 59.991200][ T5046] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 59.993451][ T5046] BTRFS info (device loop0): using free space tree [ 59.994707][ T5046] BTRFS info (device loop0): has skinny extents [ 60.006128][ T5046] BTRFS info (device loop0): enabling ssd optimizations [ 60.010901][ T5046] FAULT_INJECTION: forcing a failure. [ 60.010901][ T5046] name failslab, interval 1, probability 0, space 0, times 0 [ 60.013109][ T5046] CPU: 0 PID: 5046 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.014660][ T5046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.016371][ T5046] Call trace: [ 60.016964][ T5046] dump_backtrace+0x0/0x458 [ 60.017751][ T5046] show_stack+0x2c/0x3c [ 60.018386][ T5046] __dump_stack+0x30/0x40 [ 60.019123][ T5046] dump_stack_lvl+0xf4/0x15c [ 60.019822][ T5046] dump_stack+0x1c/0x5c [ 60.020421][ T5046] should_fail+0x3bc/0x514 [ 60.021137][ T5046] __should_failslab+0xbc/0x10c [ 60.022002][ T5046] should_failslab+0x10/0x28 [ 60.022797][ T5046] slab_pre_alloc_hook+0x64/0xe8 [ 60.023673][ T5046] kmem_cache_alloc+0x94/0x3d4 [ 60.024502][ T5046] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 60.025513][ T5046] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 60.026570][ T5046] btrfs_insert_replace_extent+0x840/0x9cc [ 60.027590][ T5046] btrfs_replace_file_extents+0x89c/0x1238 [ 60.028534][ T5046] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 60.029620][ T5046] btrfs_prealloc_file_range+0x60/0x7c [ 60.030532][ T5046] btrfs_fallocate+0x1354/0x1638 [ 60.031304][ T5046] vfs_fallocate+0x4a4/0x5f4 [ 60.032062][ T5046] ioctl_preallocate+0x234/0x2dc [ 60.032918][ T5046] do_vfs_ioctl+0x1aa4/0x23f0 [ 60.033715][ T5046] __arm64_sys_ioctl+0xe4/0x1c8 [ 60.034544][ T5046] invoke_syscall+0x98/0x2b0 [ 60.035307][ T5046] el0_svc_common+0x138/0x258 [ 60.036060][ T5046] do_el0_svc+0x58/0x13c [ 60.036785][ T5046] el0_svc+0x78/0x1d0 [ 60.037441][ T5046] el0t_64_sync_handler+0xcc/0xe4 [ 60.038307][ T5046] el0t_64_sync+0x1a0/0x1a4 [ 60.040017][ T5046] ------------[ cut here ]------------ [ 60.041069][ T5046] WARNING: CPU: 0 PID: 5046 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 60.042792][ T5046] Modules linked in: [ 60.043548][ T5046] CPU: 0 PID: 5046 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.045062][ T5046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.046737][ T5046] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 60.048160][ T5046] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 60.049252][ T5046] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 60.050329][ T5046] sp : ffff8000214e71e0 [ 60.051044][ T5046] x29: ffff8000214e7300 x28: dfff800000000000 x27: 0000000000000000 [ 60.052290][ T5046] x26: ffff0000c794a600 x25: ffff8000214e74e0 x24: ffff0000dea0d850 [ 60.053615][ T5046] x23: ffff70000429ce4c x22: 00000000fffffff4 x21: 1fffe0001bd25cd1 [ 60.054799][ T5046] x20: ffff0000de92e630 x19: ffff0000de92e688 x18: 0000000000000001 [ 60.056001][ T5046] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 60.057134][ T5046] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 60.058371][ T5046] x11: 0000000000000000 x10: 0000000000000000 x9 : b73268b8e5f76900 [ 60.059743][ T5046] x8 : b73268b8e5f76900 x7 : 0000000000000001 x6 : 0000000000000001 [ 60.061036][ T5046] x5 : ffff8000214e6af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 60.062277][ T5046] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 60.063685][ T5046] Call trace: [ 60.064229][ T5046] btrfs_replace_file_extents+0xcc4/0x1238 [ 60.065197][ T5046] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 60.066242][ T5046] btrfs_prealloc_file_range+0x60/0x7c [ 60.067213][ T5046] btrfs_fallocate+0x1354/0x1638 [ 60.067993][ T5046] vfs_fallocate+0x4a4/0x5f4 [ 60.068796][ T5046] ioctl_preallocate+0x234/0x2dc [ 60.069716][ T5046] do_vfs_ioctl+0x1aa4/0x23f0 [ 60.070546][ T5046] __arm64_sys_ioctl+0xe4/0x1c8 [ 60.071376][ T5046] invoke_syscall+0x98/0x2b0 [ 60.072082][ T5046] el0_svc_common+0x138/0x258 [ 60.072854][ T5046] do_el0_svc+0x58/0x13c [ 60.073555][ T5046] el0_svc+0x78/0x1d0 [ 60.075639][ T5046] el0t_64_sync_handler+0xcc/0xe4 [ 60.076477][ T5046] el0t_64_sync+0x1a0/0x1a4 [ 60.077304][ T5046] irq event stamp: 80602 [ 60.078009][ T5046] hardirqs last enabled at (80601): [] __up_console_sem+0xb4/0xfc [ 60.079665][ T5046] hardirqs last disabled at (80602): [] el1_dbg+0x24/0x80 [ 60.080880][ T5046] softirqs last enabled at (80578): [] handle_softirqs+0xa40/0xbe4 [ 60.082341][ T5046] softirqs last disabled at (80501): [] __irq_exit_rcu+0x240/0x43c [ 60.083930][ T5046] ---[ end trace 8d10d9358935fd4e ]--- [ 60.085138][ T5046] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 60.086816][ T5046] BTRFS info (device loop0): forced readonly [ 60.177897][ T4524] Bluetooth: hci0: command 0x0419 tx timeout [ 60.292768][ T5067] loop0: detected capacity change from 0 to 32768 [ 60.296830][ T5067] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5067) [ 60.301428][ T5067] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 60.303348][ T5067] BTRFS info (device loop0): using free space tree [ 60.304549][ T5067] BTRFS info (device loop0): has skinny extents [ 60.320386][ T5067] BTRFS info (device loop0): enabling ssd optimizations [ 60.324660][ T5067] FAULT_INJECTION: forcing a failure. [ 60.324660][ T5067] name failslab, interval 1, probability 0, space 0, times 0 [ 60.326698][ T5067] CPU: 1 PID: 5067 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.328423][ T5067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.330138][ T5067] Call trace: [ 60.330722][ T5067] dump_backtrace+0x0/0x458 [ 60.331341][ T5067] show_stack+0x2c/0x3c [ 60.331917][ T5067] __dump_stack+0x30/0x40 [ 60.332508][ T5067] dump_stack_lvl+0xf4/0x15c [ 60.333279][ T5067] dump_stack+0x1c/0x5c [ 60.334009][ T5067] should_fail+0x3bc/0x514 [ 60.334790][ T5067] __should_failslab+0xbc/0x10c [ 60.335639][ T5067] should_failslab+0x10/0x28 [ 60.336377][ T5067] slab_pre_alloc_hook+0x64/0xe8 [ 60.337166][ T5067] kmem_cache_alloc+0x94/0x3d4 [ 60.337977][ T5067] btrfs_add_delayed_data_ref+0x160/0xd08 [ 60.338906][ T5067] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 60.339865][ T5067] btrfs_insert_replace_extent+0x840/0x9cc [ 60.340825][ T5067] btrfs_replace_file_extents+0x89c/0x1238 [ 60.341915][ T5067] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 60.342922][ T5067] btrfs_prealloc_file_range+0x60/0x7c [ 60.343790][ T5067] btrfs_fallocate+0x1354/0x1638 [ 60.344595][ T5067] vfs_fallocate+0x4a4/0x5f4 [ 60.345316][ T5067] ioctl_preallocate+0x234/0x2dc [ 60.346011][ T5067] do_vfs_ioctl+0x1aa4/0x23f0 [ 60.346742][ T5067] __arm64_sys_ioctl+0xe4/0x1c8 [ 60.347494][ T5067] invoke_syscall+0x98/0x2b0 [ 60.348243][ T5067] el0_svc_common+0x138/0x258 [ 60.349015][ T5067] do_el0_svc+0x58/0x13c [ 60.349669][ T5067] el0_svc+0x78/0x1d0 [ 60.350332][ T5067] el0t_64_sync_handler+0xcc/0xe4 [ 60.351117][ T5067] el0t_64_sync+0x1a0/0x1a4 [ 60.353424][ T5067] ------------[ cut here ]------------ [ 60.354470][ T5067] WARNING: CPU: 1 PID: 5067 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 60.356180][ T5067] Modules linked in: [ 60.356797][ T5067] CPU: 1 PID: 5067 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.358389][ T5067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.360158][ T5067] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 60.361577][ T5067] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 60.363109][ T5067] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 60.364199][ T5067] sp : ffff8000214c71e0 [ 60.364902][ T5067] x29: ffff8000214c7300 x28: dfff800000000000 x27: 0000000000000000 [ 60.366219][ T5067] x26: ffff0000ca96c000 x25: ffff8000214c74e0 x24: ffff0000e25b1d70 [ 60.367574][ T5067] x23: ffff700004298e4c x22: 00000000fffffff4 x21: 1fffe0001a0a0837 [ 60.368808][ T5067] x20: ffff0000d0504160 x19: ffff0000d05041b8 x18: 0000000000000001 [ 60.370244][ T5067] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 60.371645][ T5067] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 60.373034][ T5067] x11: 0000000000000000 x10: 0000000000000000 x9 : 0a4c94e589049700 [ 60.374488][ T5067] x8 : 0a4c94e589049700 x7 : 0000000000000001 x6 : 0000000000000001 [ 60.375905][ T5067] x5 : ffff8000214c6af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 60.377216][ T5067] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 60.378527][ T5067] Call trace: [ 60.379066][ T5067] btrfs_replace_file_extents+0xcc4/0x1238 [ 60.380038][ T5067] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 60.381033][ T5067] btrfs_prealloc_file_range+0x60/0x7c [ 60.381880][ T5067] btrfs_fallocate+0x1354/0x1638 [ 60.382673][ T5067] vfs_fallocate+0x4a4/0x5f4 [ 60.383466][ T5067] ioctl_preallocate+0x234/0x2dc [ 60.384286][ T5067] do_vfs_ioctl+0x1aa4/0x23f0 [ 60.385105][ T5067] __arm64_sys_ioctl+0xe4/0x1c8 [ 60.385944][ T5067] invoke_syscall+0x98/0x2b0 [ 60.386751][ T5067] el0_svc_common+0x138/0x258 [ 60.387476][ T5067] do_el0_svc+0x58/0x13c [ 60.388175][ T5067] el0_svc+0x78/0x1d0 [ 60.388814][ T5067] el0t_64_sync_handler+0xcc/0xe4 [ 60.389582][ T5067] el0t_64_sync+0x1a0/0x1a4 [ 60.390292][ T5067] irq event stamp: 79662 [ 60.391031][ T5067] hardirqs last enabled at (79661): [] __up_console_sem+0xb4/0xfc [ 60.392655][ T5067] hardirqs last disabled at (79662): [] el1_dbg+0x24/0x80 [ 60.394131][ T5067] softirqs last enabled at (79642): [] handle_softirqs+0xa40/0xbe4 [ 60.395853][ T5067] softirqs last disabled at (79625): [] __irq_exit_rcu+0x240/0x43c [ 60.397397][ T5067] ---[ end trace 8d10d9358935fd4f ]--- [ 60.399296][ T5067] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 60.400961][ T5067] BTRFS info (device loop0): forced readonly [ 60.604856][ T5088] loop0: detected capacity change from 0 to 32768 [ 60.609878][ T5088] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5088) [ 60.616988][ T5088] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 60.618763][ T5088] BTRFS info (device loop0): using free space tree [ 60.623590][ T5088] BTRFS info (device loop0): has skinny extents [ 60.639623][ T5088] BTRFS info (device loop0): enabling ssd optimizations [ 60.643442][ T5088] FAULT_INJECTION: forcing a failure. [ 60.643442][ T5088] name failslab, interval 1, probability 0, space 0, times 0 [ 60.645482][ T5088] CPU: 0 PID: 5088 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.647061][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.648842][ T5088] Call trace: [ 60.649332][ T5088] dump_backtrace+0x0/0x458 [ 60.650161][ T5088] show_stack+0x2c/0x3c [ 60.650892][ T5088] __dump_stack+0x30/0x40 [ 60.651635][ T5088] dump_stack_lvl+0xf4/0x15c [ 60.652506][ T5088] dump_stack+0x1c/0x5c [ 60.653214][ T5088] should_fail+0x3bc/0x514 [ 60.653917][ T5088] __should_failslab+0xbc/0x10c [ 60.654747][ T5088] should_failslab+0x10/0x28 [ 60.655508][ T5088] slab_pre_alloc_hook+0x64/0xe8 [ 60.656398][ T5088] kmem_cache_alloc+0x94/0x3d4 [ 60.657115][ T5088] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 60.657958][ T5088] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 60.659061][ T5088] btrfs_insert_replace_extent+0x840/0x9cc [ 60.660079][ T5088] btrfs_replace_file_extents+0x89c/0x1238 [ 60.661082][ T5088] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 60.662139][ T5088] btrfs_prealloc_file_range+0x60/0x7c [ 60.663071][ T5088] btrfs_fallocate+0x1354/0x1638 [ 60.664013][ T5088] vfs_fallocate+0x4a4/0x5f4 [ 60.664804][ T5088] ioctl_preallocate+0x234/0x2dc [ 60.665662][ T5088] do_vfs_ioctl+0x1aa4/0x23f0 [ 60.666454][ T5088] __arm64_sys_ioctl+0xe4/0x1c8 [ 60.667322][ T5088] invoke_syscall+0x98/0x2b0 [ 60.668161][ T5088] el0_svc_common+0x138/0x258 [ 60.668917][ T5088] do_el0_svc+0x58/0x13c [ 60.669617][ T5088] el0_svc+0x78/0x1d0 [ 60.670274][ T5088] el0t_64_sync_handler+0xcc/0xe4 [ 60.671084][ T5088] el0t_64_sync+0x1a0/0x1a4 [ 60.673511][ T5088] ------------[ cut here ]------------ [ 60.674503][ T5088] WARNING: CPU: 0 PID: 5088 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 60.676308][ T5088] Modules linked in: [ 60.677028][ T5088] CPU: 0 PID: 5088 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.678689][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.680541][ T5088] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 60.681901][ T5088] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 60.682964][ T5088] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 60.683947][ T5088] sp : ffff8000214c71e0 [ 60.684707][ T5088] x29: ffff8000214c7300 x28: dfff800000000000 x27: 0000000000000000 [ 60.686027][ T5088] x26: ffff0000cfd63600 x25: ffff8000214c74e0 x24: ffff0000dea0ebf0 [ 60.687451][ T5088] x23: ffff700004298e4c x22: 00000000fffffff4 x21: 1fffe0001bd25cfd [ 60.688882][ T5088] x20: ffff0000de92e790 x19: ffff0000de92e7e8 x18: 0000000000000001 [ 60.690301][ T5088] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 60.691735][ T5088] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 60.693052][ T5088] x11: 0000000000000000 x10: 0000000000000000 x9 : 785f66ed761ed800 [ 60.694421][ T5088] x8 : 785f66ed761ed800 x7 : 0000000000000001 x6 : 0000000000000001 [ 60.695861][ T5088] x5 : ffff8000214c6af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 60.697260][ T5088] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 60.698714][ T5088] Call trace: [ 60.699244][ T5088] btrfs_replace_file_extents+0xcc4/0x1238 [ 60.700220][ T5088] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 60.701261][ T5088] btrfs_prealloc_file_range+0x60/0x7c [ 60.702226][ T5088] btrfs_fallocate+0x1354/0x1638 [ 60.702976][ T5088] vfs_fallocate+0x4a4/0x5f4 [ 60.703781][ T5088] ioctl_preallocate+0x234/0x2dc [ 60.704663][ T5088] do_vfs_ioctl+0x1aa4/0x23f0 [ 60.705515][ T5088] __arm64_sys_ioctl+0xe4/0x1c8 [ 60.706297][ T5088] invoke_syscall+0x98/0x2b0 [ 60.707133][ T5088] el0_svc_common+0x138/0x258 [ 60.707884][ T5088] do_el0_svc+0x58/0x13c [ 60.708569][ T5088] el0_svc+0x78/0x1d0 [ 60.709200][ T5088] el0t_64_sync_handler+0xcc/0xe4 [ 60.710064][ T5088] el0t_64_sync+0x1a0/0x1a4 [ 60.710913][ T5088] irq event stamp: 80974 [ 60.711675][ T5088] hardirqs last enabled at (80973): [] __up_console_sem+0xb4/0xfc [ 60.713226][ T5088] hardirqs last disabled at (80974): [] el1_dbg+0x24/0x80 [ 60.714680][ T5088] softirqs last enabled at (80950): [] handle_softirqs+0xa40/0xbe4 [ 60.716359][ T5088] softirqs last disabled at (80923): [] __irq_exit_rcu+0x240/0x43c [ 60.718018][ T5088] ---[ end trace 8d10d9358935fd50 ]--- [ 60.719979][ T5088] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 60.721843][ T5088] BTRFS info (device loop0): forced readonly [ 60.916609][ T5109] loop0: detected capacity change from 0 to 32768 [ 60.919323][ T5109] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5109) [ 60.922917][ T5109] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 60.924435][ T5109] BTRFS info (device loop0): using free space tree [ 60.925413][ T5109] BTRFS info (device loop0): has skinny extents [ 60.945329][ T5109] BTRFS info (device loop0): enabling ssd optimizations [ 60.949787][ T5109] FAULT_INJECTION: forcing a failure. [ 60.949787][ T5109] name failslab, interval 1, probability 0, space 0, times 0 [ 60.951906][ T5109] CPU: 0 PID: 5109 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.953315][ T5109] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.955103][ T5109] Call trace: [ 60.955616][ T5109] dump_backtrace+0x0/0x458 [ 60.956339][ T5109] show_stack+0x2c/0x3c [ 60.957020][ T5109] __dump_stack+0x30/0x40 [ 60.957729][ T5109] dump_stack_lvl+0xf4/0x15c [ 60.958625][ T5109] dump_stack+0x1c/0x5c [ 60.959390][ T5109] should_fail+0x3bc/0x514 [ 60.960098][ T5109] __should_failslab+0xbc/0x10c [ 60.960954][ T5109] should_failslab+0x10/0x28 [ 60.961814][ T5109] slab_pre_alloc_hook+0x64/0xe8 [ 60.962621][ T5109] kmem_cache_alloc+0x94/0x3d4 [ 60.963439][ T5109] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 60.964444][ T5109] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 60.965492][ T5109] btrfs_insert_replace_extent+0x840/0x9cc [ 60.966650][ T5109] btrfs_replace_file_extents+0x89c/0x1238 [ 60.967680][ T5109] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 60.968686][ T5109] btrfs_prealloc_file_range+0x60/0x7c [ 60.969576][ T5109] btrfs_fallocate+0x1354/0x1638 [ 60.970426][ T5109] vfs_fallocate+0x4a4/0x5f4 [ 60.971217][ T5109] ioctl_preallocate+0x234/0x2dc [ 60.972041][ T5109] do_vfs_ioctl+0x1aa4/0x23f0 [ 60.972897][ T5109] __arm64_sys_ioctl+0xe4/0x1c8 [ 60.973791][ T5109] invoke_syscall+0x98/0x2b0 [ 60.974557][ T5109] el0_svc_common+0x138/0x258 [ 60.975262][ T5109] do_el0_svc+0x58/0x13c [ 60.975955][ T5109] el0_svc+0x78/0x1d0 [ 60.976605][ T5109] el0t_64_sync_handler+0xcc/0xe4 [ 60.977480][ T5109] el0t_64_sync+0x1a0/0x1a4 [ 60.980653][ T5109] ------------[ cut here ]------------ [ 60.981733][ T5109] WARNING: CPU: 0 PID: 5109 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 60.983380][ T5109] Modules linked in: [ 60.984031][ T5109] CPU: 0 PID: 5109 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.985616][ T5109] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.987366][ T5109] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 60.988641][ T5109] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 60.989648][ T5109] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 60.990636][ T5109] sp : ffff8000214c71e0 [ 60.991268][ T5109] x29: ffff8000214c7300 x28: dfff800000000000 x27: 0000000000000000 [ 60.992578][ T5109] x26: ffff0000cb15fe00 x25: ffff8000214c74e0 x24: ffff0000de9e9d70 [ 60.994081][ T5109] x23: ffff700004298e4c x22: 00000000fffffff4 x21: 1fffe0001bd25d29 [ 60.995536][ T5109] x20: ffff0000de92e8f0 x19: ffff0000de92e948 x18: 0000000000000001 [ 60.996905][ T5109] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 60.998195][ T5109] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 60.999593][ T5109] x11: 0000000000000000 x10: 0000000000000000 x9 : 8370952285d9af00 [ 61.001028][ T5109] x8 : 8370952285d9af00 x7 : 0000000000000001 x6 : 0000000000000001 [ 61.002393][ T5109] x5 : ffff8000214c6af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 61.003795][ T5109] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 61.005150][ T5109] Call trace: [ 61.005699][ T5109] btrfs_replace_file_extents+0xcc4/0x1238 [ 61.006730][ T5109] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 61.007688][ T5109] btrfs_prealloc_file_range+0x60/0x7c [ 61.008637][ T5109] btrfs_fallocate+0x1354/0x1638 [ 61.009484][ T5109] vfs_fallocate+0x4a4/0x5f4 [ 61.010298][ T5109] ioctl_preallocate+0x234/0x2dc [ 61.011123][ T5109] do_vfs_ioctl+0x1aa4/0x23f0 [ 61.011943][ T5109] __arm64_sys_ioctl+0xe4/0x1c8 [ 61.012762][ T5109] invoke_syscall+0x98/0x2b0 [ 61.013600][ T5109] el0_svc_common+0x138/0x258 [ 61.014389][ T5109] do_el0_svc+0x58/0x13c [ 61.015035][ T5109] el0_svc+0x78/0x1d0 [ 61.015780][ T5109] el0t_64_sync_handler+0xcc/0xe4 [ 61.016636][ T5109] el0t_64_sync+0x1a0/0x1a4 [ 61.017332][ T5109] irq event stamp: 80456 [ 61.018038][ T5109] hardirqs last enabled at (80455): [] __up_console_sem+0xb4/0xfc [ 61.019528][ T5109] hardirqs last disabled at (80456): [] el1_dbg+0x24/0x80 [ 61.020871][ T5109] softirqs last enabled at (80432): [] handle_softirqs+0xa40/0xbe4 [ 61.022533][ T5109] softirqs last disabled at (80419): [] __irq_exit_rcu+0x240/0x43c [ 61.024225][ T5109] ---[ end trace 8d10d9358935fd51 ]--- [ 61.026539][ T5109] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 61.028236][ T5109] BTRFS info (device loop0): forced readonly [ 61.209729][ T5130] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5130) [ 61.213446][ T5130] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 61.215027][ T5130] BTRFS info (device loop0): using free space tree [ 61.216210][ T5130] BTRFS info (device loop0): has skinny extents [ 61.224043][ T5130] BTRFS info (device loop0): enabling ssd optimizations [ 61.228308][ T5130] FAULT_INJECTION: forcing a failure. [ 61.228308][ T5130] name failslab, interval 1, probability 0, space 0, times 0 [ 61.230649][ T5130] CPU: 1 PID: 5130 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.232149][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.233965][ T5130] Call trace: [ 61.234491][ T5130] dump_backtrace+0x0/0x458 [ 61.235324][ T5130] show_stack+0x2c/0x3c [ 61.236076][ T5130] __dump_stack+0x30/0x40 [ 61.236861][ T5130] dump_stack_lvl+0xf4/0x15c [ 61.237699][ T5130] dump_stack+0x1c/0x5c [ 61.238410][ T5130] should_fail+0x3bc/0x514 [ 61.239119][ T5130] __should_failslab+0xbc/0x10c [ 61.239932][ T5130] should_failslab+0x10/0x28 [ 61.240683][ T5130] slab_pre_alloc_hook+0x64/0xe8 [ 61.241566][ T5130] kmem_cache_alloc+0x94/0x3d4 [ 61.242407][ T5130] btrfs_add_delayed_data_ref+0x160/0xd08 [ 61.243339][ T5130] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 61.244382][ T5130] btrfs_insert_replace_extent+0x840/0x9cc [ 61.245320][ T5130] btrfs_replace_file_extents+0x89c/0x1238 [ 61.246324][ T5130] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 61.247263][ T5130] btrfs_prealloc_file_range+0x60/0x7c [ 61.248260][ T5130] btrfs_fallocate+0x1354/0x1638 [ 61.249193][ T5130] vfs_fallocate+0x4a4/0x5f4 [ 61.250028][ T5130] ioctl_preallocate+0x234/0x2dc [ 61.250885][ T5130] do_vfs_ioctl+0x1aa4/0x23f0 [ 61.251693][ T5130] __arm64_sys_ioctl+0xe4/0x1c8 [ 61.252564][ T5130] invoke_syscall+0x98/0x2b0 [ 61.253516][ T5130] el0_svc_common+0x138/0x258 [ 61.254386][ T5130] do_el0_svc+0x58/0x13c [ 61.255053][ T5130] el0_svc+0x78/0x1d0 [ 61.255819][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 61.256730][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 61.259780][ T5130] ------------[ cut here ]------------ [ 61.260787][ T5130] WARNING: CPU: 1 PID: 5130 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 61.262556][ T5130] Modules linked in: [ 61.263257][ T5130] CPU: 1 PID: 5130 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.264761][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.266538][ T5130] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 61.267776][ T5130] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 61.268685][ T5130] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 61.269667][ T5130] sp : ffff8000219371e0 [ 61.270328][ T5130] x29: ffff800021937300 x28: dfff800000000000 x27: 0000000000000000 [ 61.271727][ T5130] x26: ffff0000ca6b2600 x25: ffff8000219374e0 x24: ffff0000e25b4e80 [ 61.273106][ T5130] x23: ffff700004326e4c x22: 00000000fffffff4 x21: 1fffe0001a0a09ad [ 61.274352][ T5130] x20: ffff0000d0504d10 x19: ffff0000d0504d68 x18: 0000000000000001 [ 61.275614][ T5130] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 61.277042][ T5130] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 61.278310][ T5130] x11: 0000000000000000 x10: 0000000000000000 x9 : 3cdc352538662700 [ 61.279742][ T5130] x8 : 3cdc352538662700 x7 : 0000000000000001 x6 : 0000000000000001 [ 61.281162][ T5130] x5 : ffff800021936af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 61.282610][ T5130] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 61.283987][ T5130] Call trace: [ 61.284558][ T5130] btrfs_replace_file_extents+0xcc4/0x1238 [ 61.285527][ T5130] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 61.286537][ T5130] btrfs_prealloc_file_range+0x60/0x7c [ 61.287561][ T5130] btrfs_fallocate+0x1354/0x1638 [ 61.288418][ T5130] vfs_fallocate+0x4a4/0x5f4 [ 61.289292][ T5130] ioctl_preallocate+0x234/0x2dc [ 61.290156][ T5130] do_vfs_ioctl+0x1aa4/0x23f0 [ 61.290980][ T5130] __arm64_sys_ioctl+0xe4/0x1c8 [ 61.291832][ T5130] invoke_syscall+0x98/0x2b0 [ 61.292634][ T5130] el0_svc_common+0x138/0x258 [ 61.293431][ T5130] do_el0_svc+0x58/0x13c [ 61.294115][ T5130] el0_svc+0x78/0x1d0 [ 61.294746][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 61.295588][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 61.296346][ T5130] irq event stamp: 79500 [ 61.297087][ T5130] hardirqs last enabled at (79499): [] __up_console_sem+0xb4/0xfc [ 61.298814][ T5130] hardirqs last disabled at (79500): [] el1_dbg+0x24/0x80 [ 61.300402][ T5130] softirqs last enabled at (79480): [] handle_softirqs+0xa40/0xbe4 [ 61.302021][ T5130] softirqs last disabled at (79393): [] __irq_exit_rcu+0x240/0x43c [ 61.303661][ T5130] ---[ end trace 8d10d9358935fd52 ]--- [ 61.307270][ T5130] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 61.309059][ T5130] BTRFS info (device loop0): forced readonly [ 61.515848][ T5151] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5151) [ 61.520038][ T5151] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 61.521669][ T5151] BTRFS info (device loop0): using free space tree [ 61.522887][ T5151] BTRFS info (device loop0): has skinny extents [ 61.537948][ T5151] BTRFS info (device loop0): enabling ssd optimizations [ 61.542056][ T5151] FAULT_INJECTION: forcing a failure. [ 61.542056][ T5151] name failslab, interval 1, probability 0, space 0, times 0 [ 61.544192][ T5151] CPU: 1 PID: 5151 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.545724][ T5151] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.547502][ T5151] Call trace: [ 61.548089][ T5151] dump_backtrace+0x0/0x458 [ 61.548906][ T5151] show_stack+0x2c/0x3c [ 61.549667][ T5151] __dump_stack+0x30/0x40 [ 61.550474][ T5151] dump_stack_lvl+0xf4/0x15c [ 61.551243][ T5151] dump_stack+0x1c/0x5c [ 61.552035][ T5151] should_fail+0x3bc/0x514 [ 61.552836][ T5151] __should_failslab+0xbc/0x10c [ 61.553671][ T5151] should_failslab+0x10/0x28 [ 61.554395][ T5151] slab_pre_alloc_hook+0x64/0xe8 [ 61.555244][ T5151] kmem_cache_alloc+0x94/0x3d4 [ 61.556077][ T5151] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 61.557078][ T5151] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 61.558189][ T5151] btrfs_insert_replace_extent+0x840/0x9cc [ 61.559080][ T5151] btrfs_replace_file_extents+0x89c/0x1238 [ 61.560089][ T5151] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 61.561088][ T5151] btrfs_prealloc_file_range+0x60/0x7c [ 61.562604][ T5151] btrfs_fallocate+0x1354/0x1638 [ 61.563419][ T5151] vfs_fallocate+0x4a4/0x5f4 [ 61.564179][ T5151] ioctl_preallocate+0x234/0x2dc [ 61.564977][ T5151] do_vfs_ioctl+0x1aa4/0x23f0 [ 61.565738][ T5151] __arm64_sys_ioctl+0xe4/0x1c8 [ 61.566609][ T5151] invoke_syscall+0x98/0x2b0 [ 61.567541][ T5151] el0_svc_common+0x138/0x258 [ 61.568285][ T5151] do_el0_svc+0x58/0x13c [ 61.568997][ T5151] el0_svc+0x78/0x1d0 [ 61.569724][ T5151] el0t_64_sync_handler+0xcc/0xe4 [ 61.570642][ T5151] el0t_64_sync+0x1a0/0x1a4 [ 61.573213][ T5151] ------------[ cut here ]------------ [ 61.574289][ T5151] WARNING: CPU: 1 PID: 5151 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 61.576175][ T5151] Modules linked in: [ 61.576771][ T5151] CPU: 1 PID: 5151 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.578266][ T5151] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.579819][ T5151] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 61.581229][ T5151] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 61.582248][ T5151] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 61.583295][ T5151] sp : ffff8000214c71e0 [ 61.583981][ T5151] x29: ffff8000214c7300 x28: dfff800000000000 x27: 0000000000000000 [ 61.585344][ T5151] x26: ffff0000c12ec400 x25: ffff8000214c74e0 x24: ffff0000e25b6bf0 [ 61.586764][ T5151] x23: ffff700004298e4c x22: 00000000fffffff4 x21: 1fffe0001a0a09d9 [ 61.588229][ T5151] x20: ffff0000d0504e70 x19: ffff0000d0504ec8 x18: 0000000000000001 [ 61.589555][ T5151] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 61.590877][ T5151] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 61.592181][ T5151] x11: 0000000000000000 x10: 0000000000000000 x9 : ccc748af986f0400 [ 61.593570][ T5151] x8 : ccc748af986f0400 x7 : 0000000000000001 x6 : 0000000000000001 [ 61.594988][ T5151] x5 : ffff8000214c6af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 61.596462][ T5151] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 61.597807][ T5151] Call trace: [ 61.598330][ T5151] btrfs_replace_file_extents+0xcc4/0x1238 [ 61.599251][ T5151] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 61.600187][ T5151] btrfs_prealloc_file_range+0x60/0x7c [ 61.600986][ T5151] btrfs_fallocate+0x1354/0x1638 [ 61.601791][ T5151] vfs_fallocate+0x4a4/0x5f4 [ 61.602559][ T5151] ioctl_preallocate+0x234/0x2dc [ 61.603368][ T5151] do_vfs_ioctl+0x1aa4/0x23f0 [ 61.604132][ T5151] __arm64_sys_ioctl+0xe4/0x1c8 [ 61.604891][ T5151] invoke_syscall+0x98/0x2b0 [ 61.605683][ T5151] el0_svc_common+0x138/0x258 [ 61.606548][ T5151] do_el0_svc+0x58/0x13c [ 61.607317][ T5151] el0_svc+0x78/0x1d0 [ 61.608037][ T5151] el0t_64_sync_handler+0xcc/0xe4 [ 61.608941][ T5151] el0t_64_sync+0x1a0/0x1a4 [ 61.609682][ T5151] irq event stamp: 80202 [ 61.610361][ T5151] hardirqs last enabled at (80201): [] __up_console_sem+0xb4/0xfc [ 61.611944][ T5151] hardirqs last disabled at (80202): [] el1_dbg+0x24/0x80 [ 61.613524][ T5151] softirqs last enabled at (80178): [] handle_softirqs+0xa40/0xbe4 [ 61.615254][ T5151] softirqs last disabled at (80161): [] __irq_exit_rcu+0x240/0x43c [ 61.616915][ T5151] ---[ end trace 8d10d9358935fd53 ]--- [ 61.618195][ T5151] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 61.620504][ T5151] BTRFS info (device loop0): forced readonly [ 61.819152][ T5172] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5172) [ 61.828929][ T5172] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 61.830415][ T5172] BTRFS info (device loop0): using free space tree [ 61.831561][ T5172] BTRFS info (device loop0): has skinny extents [ 61.840199][ T5172] BTRFS info (device loop0): enabling ssd optimizations [ 61.843771][ T5172] FAULT_INJECTION: forcing a failure. [ 61.843771][ T5172] name failslab, interval 1, probability 0, space 0, times 0 [ 61.845959][ T5172] CPU: 1 PID: 5172 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.847453][ T5172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.849347][ T5172] Call trace: [ 61.849961][ T5172] dump_backtrace+0x0/0x458 [ 61.850773][ T5172] show_stack+0x2c/0x3c [ 61.851508][ T5172] __dump_stack+0x30/0x40 [ 61.852270][ T5172] dump_stack_lvl+0xf4/0x15c [ 61.853043][ T5172] dump_stack+0x1c/0x5c [ 61.853698][ T5172] should_fail+0x3bc/0x514 [ 61.854442][ T5172] __should_failslab+0xbc/0x10c [ 61.855263][ T5172] should_failslab+0x10/0x28 [ 61.856032][ T5172] slab_pre_alloc_hook+0x64/0xe8 [ 61.856878][ T5172] kmem_cache_alloc+0x94/0x3d4 [ 61.857781][ T5172] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 61.858765][ T5172] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 61.859832][ T5172] btrfs_insert_replace_extent+0x840/0x9cc [ 61.860849][ T5172] btrfs_replace_file_extents+0x89c/0x1238 [ 61.861785][ T5172] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 61.862688][ T5172] btrfs_prealloc_file_range+0x60/0x7c [ 61.863625][ T5172] btrfs_fallocate+0x1354/0x1638 [ 61.864376][ T5172] vfs_fallocate+0x4a4/0x5f4 [ 61.865116][ T5172] ioctl_preallocate+0x234/0x2dc [ 61.865863][ T5172] do_vfs_ioctl+0x1aa4/0x23f0 [ 61.866565][ T5172] __arm64_sys_ioctl+0xe4/0x1c8 [ 61.867344][ T5172] invoke_syscall+0x98/0x2b0 [ 61.868126][ T5172] el0_svc_common+0x138/0x258 [ 61.868881][ T5172] do_el0_svc+0x58/0x13c [ 61.869614][ T5172] el0_svc+0x78/0x1d0 [ 61.870334][ T5172] el0t_64_sync_handler+0xcc/0xe4 [ 61.871126][ T5172] el0t_64_sync+0x1a0/0x1a4 [ 61.873196][ T5172] ------------[ cut here ]------------ [ 61.874221][ T5172] WARNING: CPU: 1 PID: 5172 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 61.875916][ T5172] Modules linked in: [ 61.876645][ T5172] CPU: 1 PID: 5172 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.878273][ T5172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.880069][ T5172] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 61.881421][ T5172] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 61.882476][ T5172] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 61.883584][ T5172] sp : ffff8000217171e0 [ 61.884375][ T5172] x29: ffff800021717300 x28: dfff800000000000 x27: 0000000000000000 [ 61.885891][ T5172] x26: ffff0000cbcae400 x25: ffff8000217174e0 x24: ffff0000e2423ae0 [ 61.887341][ T5172] x23: ffff7000042e2e4c x22: 00000000fffffff4 x21: 1fffe0001a0a088f [ 61.888779][ T5172] x20: ffff0000d0504420 x19: ffff0000d0504478 x18: 0000000000000001 [ 61.890229][ T5172] x17: 0000000000000000 x16: ffff800008304af8 x15: 00000000ffffffff [ 61.891571][ T5172] x14: 0000000000000001 x13: 1ffff000042e2d5c x12: 0000000000ff0100 [ 61.892908][ T5172] x11: 0000000000000000 x10: 0000000000000000 x9 : 901bc22283459900 [ 61.894244][ T5172] x8 : 901bc22283459900 x7 : 0000000000000001 x6 : 0000000000000001 [ 61.895589][ T5172] x5 : ffff800021716af8 x4 : ffff80001437f3e0 x3 : ffff800008304c08 [ 61.896893][ T5172] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 61.898145][ T5172] Call trace: [ 61.898667][ T5172] btrfs_replace_file_extents+0xcc4/0x1238 [ 61.899734][ T5172] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 61.900741][ T5172] btrfs_prealloc_file_range+0x60/0x7c [ 61.901732][ T5172] btrfs_fallocate+0x1354/0x1638 [ 61.902492][ T5172] vfs_fallocate+0x4a4/0x5f4 [ 61.903209][ T5172] ioctl_preallocate+0x234/0x2dc [ 61.904024][ T5172] do_vfs_ioctl+0x1aa4/0x23f0 [ 61.904775][ T5172] __arm64_sys_ioctl+0xe4/0x1c8 [ 61.905658][ T5172] invoke_syscall+0x98/0x2b0 [ 61.906396][ T5172] el0_svc_common+0x138/0x258 [ 61.907131][ T5172] do_el0_svc+0x58/0x13c [ 61.907788][ T5172] el0_svc+0x78/0x1d0 [ 61.908414][ T5172] el0t_64_sync_handler+0xcc/0xe4 [ 61.909242][ T5172] el0t_64_sync+0x1a0/0x1a4 [ 61.909977][ T5172] irq event stamp: 79528 [ 61.910737][ T5172] hardirqs last enabled at (79527): [] __up_console_sem+0xb4/0xfc [ 61.912518][ T5172] hardirqs last disabled at (79528): [] el1_dbg+0x24/0x80 [ 61.914036][ T5172] softirqs last enabled at (79504): [] handle_softirqs+0xa40/0xbe4 [ 61.915736][ T5172] softirqs last disabled at (79405): [] __irq_exit_rcu+0x240/0x43c [ 61.917287][ T5172] ---[ end trace 8d10d9358935fd54 ]--- [ 61.918998][ T5172] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 61.920750][ T5172] BTRFS info (device loop0): forced readonly [ 62.112362][ T5193] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5193) [ 62.117517][ T5193] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 62.119422][ T5193] BTRFS info (device loop0): using free space tree [ 62.120674][ T5193] BTRFS info (device loop0): has skinny extents [ 62.131619][ T5193] BTRFS info (device loop0): enabling ssd optimizations [ 62.135357][ T5193] FAULT_INJECTION: forcing a failure. [ 62.135357][ T5193] name failslab, interval 1, probability 0, space 0, times 0 [ 62.137544][ T5193] CPU: 0 PID: 5193 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 62.139112][ T5193] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 62.140770][ T5193] Call trace: [ 62.141334][ T5193] dump_backtrace+0x0/0x458 [ 62.142064][ T5193] show_stack+0x2c/0x3c [ 62.142729][ T5193] __dump_stack+0x30/0x40 [ 62.143428][ T5193] dump_stack_lvl+0xf4/0x15c [ 62.144136][ T5193] dump_stack+0x1c/0x5c [ 62.144860][ T5193] should_fail+0x3bc/0x514 [ 62.145681][ T5193] __should_failslab+0xbc/0x10c [ 62.146471][ T5193] should_failslab+0x10/0x28 [ 62.147219][ T5193] slab_pre_alloc_hook+0x64/0xe8 [ 62.148128][ T5193] kmem_cache_alloc+0x94/0x3d4 [ 62.148819][ T5193] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 62.149755][ T5193] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 62.150669][ T5193] btrfs_insert_replace_extent+0x840/0x9cc [ 62.151651][ T5193] btrfs_replace_file_extents+0x89c/0x1238 [ 62.152642][ T5193] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 62.153720][ T5193] btrfs_prealloc_file_range+0x60/0x7c [ 62.154639][ T5193] btrfs_fallocate+0x1354/0x1638 [ 62.155393][ T5193] vfs_fallocate+0x4a4/0x5f4 [ 62.156220][ T5193] ioctl_preallocate+0x234/0x2dc [ 62.157005][ T5193] do_vfs_ioctl+0x1aa4/0x23f0 [ 62.157703][ T5193] __arm64_sys_ioctl+0xe4/0x1c8 [ 62.158476][ T5193] invoke_syscall+0x98/0x2b0 [ 62.159226][ T5193] el0_svc_common+0x138/0x258 [ 62.159937][ T5193] do_el0_svc+0x58/0x13c [ 62.160669][ T5193] el0_svc+0x78/0x1d0 [ 62.161341][ T5193] el0t_64_sync_handler+0xcc/0xe4 [ 62.162247][ T5193] el0t_64_sync+0x1a0/0x1a4 [ 62.163237][ T5193] ------------[ cut here ]------------ [ 62.164244][ T5193] WARNING: CPU: 0 PID: 5193 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 62.165922][ T5193] Modules linked in: [ 62.166532][ T5193] CPU: 0 PID: 5193 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 62.168039][ T5193] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 62.169788][ T5193] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 62.171154][ T5193] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 62.172201][ T5193] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 62.173272][ T5193] sp : ffff8000217171e0 [ 62.173980][ T5193] x29: ffff800021717300 x28: dfff800000000000 x27: 0000000000000000 [ 62.175333][ T5193] x26: ffff0000d3b42a00 x25: ffff8000217174e0 x24: ffff0000de9ece80 [ 62.176646][ T5193] x23: ffff7000042e2e4c x22: 00000000fffffff4 x21: 1fffe0001bd25d55 [ 62.178104][ T5193] x20: ffff0000de92ea50 x19: ffff0000de92eaa8 x18: 0000000000000001 [ 62.179481][ T5193] x17: 0000000000000000 x16: ffff800008304af8 x15: 00000000ffffffff [ 62.180829][ T5193] x14: 0000000000000001 x13: 1ffff000042e2d5c x12: 0000000000ff0100 [ 62.182126][ T5193] x11: 0000000000000000 x10: 0000000000000000 x9 : 2cff06048cb94500 [ 62.183418][ T5193] x8 : 2cff06048cb94500 x7 : 0000000000000001 x6 : 0000000000000001 [ 62.184840][ T5193] x5 : ffff800021716af8 x4 : ffff80001437f3e0 x3 : ffff800008304c08 [ 62.186253][ T5193] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 62.187614][ T5193] Call trace: [ 62.188185][ T5193] btrfs_replace_file_extents+0xcc4/0x1238 [ 62.189083][ T5193] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 62.189982][ T5193] btrfs_prealloc_file_range+0x60/0x7c [ 62.190873][ T5193] btrfs_fallocate+0x1354/0x1638 [ 62.191737][ T5193] vfs_fallocate+0x4a4/0x5f4 [ 62.192403][ T5193] ioctl_preallocate+0x234/0x2dc [ 62.193284][ T5193] do_vfs_ioctl+0x1aa4/0x23f0 [ 62.193921][ T5193] __arm64_sys_ioctl+0xe4/0x1c8 [ 62.194558][ T5193] invoke_syscall+0x98/0x2b0 [ 62.195166][ T5193] el0_svc_common+0x138/0x258 [ 62.195948][ T5193] do_el0_svc+0x58/0x13c [ 62.196681][ T5193] el0_svc+0x78/0x1d0 [ 62.197325][ T5193] el0t_64_sync_handler+0xcc/0xe4 [ 62.198083][ T5193] el0t_64_sync+0x1a0/0x1a4 [ 62.198822][ T5193] irq event stamp: 80412 [ 62.199513][ T5193] hardirqs last enabled at (80411): [] __up_console_sem+0xb4/0xfc [ 62.200724][ T5193] hardirqs last disabled at (80412): [] el1_dbg+0x24/0x80 [ 62.201866][ T5193] softirqs last enabled at (80388): [] handle_softirqs+0xa40/0xbe4 [ 62.203171][ T5193] softirqs last disabled at (80373): [] __irq_exit_rcu+0x240/0x43c [ 62.204776][ T5193] ---[ end trace 8d10d9358935fd55 ]--- [ 62.205811][ T5193] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 62.207595][ T5193] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:02 executed programs: 30 [ 62.421394][ T5214] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5214) [ 62.425731][ T5214] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 62.428220][ T5214] BTRFS info (device loop0): using free space tree [ 62.429352][ T5214] BTRFS info (device loop0): has skinny extents [ 62.440914][ T5214] BTRFS info (device loop0): enabling ssd optimizations [ 62.444445][ T5214] FAULT_INJECTION: forcing a failure. [ 62.444445][ T5214] name failslab, interval 1, probability 0, space 0, times 0 [ 62.446711][ T5214] CPU: 0 PID: 5214 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 62.448246][ T5214] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 62.449893][ T5214] Call trace: [ 62.450480][ T5214] dump_backtrace+0x0/0x458 [ 62.451329][ T5214] show_stack+0x2c/0x3c [ 62.452127][ T5214] __dump_stack+0x30/0x40 [ 62.452824][ T5214] dump_stack_lvl+0xf4/0x15c [ 62.453556][ T5214] dump_stack+0x1c/0x5c [ 62.454183][ T5214] should_fail+0x3bc/0x514 [ 62.454977][ T5214] __should_failslab+0xbc/0x10c [ 62.455710][ T5214] should_failslab+0x10/0x28 [ 62.456352][ T5214] slab_pre_alloc_hook+0x64/0xe8 [ 62.457065][ T5214] kmem_cache_alloc+0x94/0x3d4 [ 62.457857][ T5214] btrfs_add_delayed_data_ref+0x3b8/0xd08 [ 62.458757][ T5214] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 62.459789][ T5214] btrfs_insert_replace_extent+0x840/0x9cc [ 62.460642][ T5214] btrfs_replace_file_extents+0x89c/0x1238 [ 62.461526][ T5214] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 62.462403][ T5214] btrfs_prealloc_file_range+0x60/0x7c [ 62.463311][ T5214] btrfs_fallocate+0x1354/0x1638 [ 62.464167][ T5214] vfs_fallocate+0x4a4/0x5f4 [ 62.464922][ T5214] ioctl_preallocate+0x234/0x2dc [ 62.465598][ T5214] do_vfs_ioctl+0x1aa4/0x23f0 [ 62.466310][ T5214] __arm64_sys_ioctl+0xe4/0x1c8 [ 62.467039][ T5214] invoke_syscall+0x98/0x2b0 [ 62.467752][ T5214] el0_svc_common+0x138/0x258 [ 62.468485][ T5214] do_el0_svc+0x58/0x13c [ 62.469143][ T5214] el0_svc+0x78/0x1d0 [ 62.469811][ T5214] el0t_64_sync_handler+0xcc/0xe4 [ 62.470591][ T5214] el0t_64_sync+0x1a0/0x1a4 [ 62.471555][ T5214] ------------[ cut here ]------------ [ 62.472507][ T5214] WARNING: CPU: 0 PID: 5214 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 62.474149][ T5214] Modules linked in: [ 62.474826][ T5214] CPU: 0 PID: 5214 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 62.476254][ T5214] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 62.477751][ T5214] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 62.478956][ T5214] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 62.479956][ T5214] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 62.481025][ T5214] sp : ffff800021a671e0 [ 62.481650][ T5214] x29: ffff800021a67300 x28: dfff800000000000 x27: 0000000000000000 [ 62.482973][ T5214] x26: ffff0000c2e86e00 x25: ffff800021a674e0 x24: ffff0000de9e89d0 [ 62.484247][ T5214] x23: ffff70000434ce4c x22: 00000000fffffff4 x21: 1fffe0001bd25d81 [ 62.485548][ T5214] x20: ffff0000de92ebb0 x19: ffff0000de92ec08 x18: 0000000000000001 [ 62.486771][ T5214] x17: 0000000000000000 x16: ffff800008304af8 x15: 00000000ffffffff [ 62.488029][ T5214] x14: 0000000000000001 x13: 1ffff0000434cd5c x12: 0000000000ff0100 [ 62.489218][ T5214] x11: 0000000000000000 x10: 0000000000000000 x9 : 11ea9343299f0100 [ 62.490434][ T5214] x8 : 11ea9343299f0100 x7 : 0000000000000001 x6 : 0000000000000001 [ 62.491583][ T5214] x5 : ffff800021a66af8 x4 : ffff80001437f3e0 x3 : ffff800008304c08 [ 62.492722][ T5214] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 62.493987][ T5214] Call trace: [ 62.494397][ T5214] btrfs_replace_file_extents+0xcc4/0x1238 [ 62.495197][ T5214] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 62.496087][ T5214] btrfs_prealloc_file_range+0x60/0x7c [ 62.496905][ T5214] btrfs_fallocate+0x1354/0x1638 [ 62.497828][ T5214] vfs_fallocate+0x4a4/0x5f4 [ 62.498625][ T5214] ioctl_preallocate+0x234/0x2dc [ 62.499469][ T5214] do_vfs_ioctl+0x1aa4/0x23f0 [ 62.500228][ T5214] __arm64_sys_ioctl+0xe4/0x1c8 [ 62.501104][ T5214] invoke_syscall+0x98/0x2b0 [ 62.501888][ T5214] el0_svc_common+0x138/0x258 [ 62.502633][ T5214] do_el0_svc+0x58/0x13c [ 62.503327][ T5214] el0_svc+0x78/0x1d0 [ 62.504039][ T5214] el0t_64_sync_handler+0xcc/0xe4 [ 62.504875][ T5214] el0t_64_sync+0x1a0/0x1a4 [ 62.505610][ T5214] irq event stamp: 80080 [ 62.506382][ T5214] hardirqs last enabled at (80079): [] __up_console_sem+0xb4/0xfc [ 62.508069][ T5214] hardirqs last disabled at (80080): [] el1_dbg+0x24/0x80 [ 62.509384][ T5214] softirqs last enabled at (80056): [] handle_softirqs+0xa40/0xbe4 [ 62.510920][ T5214] softirqs last disabled at (80043): [] __irq_exit_rcu+0x240/0x43c [ 62.512525][ T5214] ---[ end trace 8d10d9358935fd56 ]--- [ 62.514133][ T5214] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 62.515903][ T5214] BTRFS info (device loop0): forced readonly [ 62.710763][ T5235] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5235) [ 62.715349][ T5235] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 62.717026][ T5235] BTRFS info (device loop0): using free space tree [ 62.718320][ T5235] BTRFS info (device loop0): has skinny extents [ 62.731613][ T5235] BTRFS info (device loop0): enabling ssd optimizations [ 62.735571][ T5235] FAULT_INJECTION: forcing a failure. [ 62.735571][ T5235] name failslab, interval 1, probability 0, space 0, times 0 [ 62.738843][ T5235] CPU: 0 PID: 5235 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 62.740425][ T5235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 62.742020][ T5235] Call trace: [ 62.742609][ T5235] dump_backtrace+0x0/0x458 [ 62.743382][ T5235] show_stack+0x2c/0x3c [ 62.744050][ T5235] __dump_stack+0x30/0x40 [ 62.744772][ T5235] dump_stack_lvl+0xf4/0x15c [ 62.745484][ T5235] dump_stack+0x1c/0x5c [ 62.746192][ T5235] should_fail+0x3bc/0x514 [ 62.746937][ T5235] __should_failslab+0xbc/0x10c [ 62.747723][ T5235] should_failslab+0x10/0x28 [ 62.748441][ T5235] slab_pre_alloc_hook+0x64/0xe8 [ 62.749307][ T5235] kmem_cache_alloc+0x94/0x3d4 [ 62.750203][ T5235] btrfs_add_delayed_data_ref+0x160/0xd08 [ 62.751129][ T5235] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 62.752221][ T5235] btrfs_insert_replace_extent+0x840/0x9cc [ 62.753124][ T5235] btrfs_replace_file_extents+0x89c/0x1238 [ 62.754053][ T5235] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 62.755024][ T5235] btrfs_prealloc_file_range+0x60/0x7c [ 62.755956][ T5235] btrfs_fallocate+0x1354/0x1638 [ 62.756799][ T5235] vfs_fallocate+0x4a4/0x5f4 [ 62.757539][ T5235] ioctl_preallocate+0x234/0x2dc [ 62.758327][ T5235] do_vfs_ioctl+0x1aa4/0x23f0 [ 62.759078][ T5235] __arm64_sys_ioctl+0xe4/0x1c8 [ 62.759881][ T5235] invoke_syscall+0x98/0x2b0 [ 62.760672][ T5235] el0_svc_common+0x138/0x258 [ 62.761480][ T5235] do_el0_svc+0x58/0x13c [ 62.762211][ T5235] el0_svc+0x78/0x1d0 [ 62.762810][ T5235] el0t_64_sync_handler+0xcc/0xe4 [ 62.763519][ T5235] el0t_64_sync+0x1a0/0x1a4 [ 62.765500][ T5235] ------------[ cut here ]------------ [ 62.766470][ T5235] WARNING: CPU: 0 PID: 5235 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 62.768163][ T5235] Modules linked in: [ 62.768860][ T5235] CPU: 0 PID: 5235 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 62.770448][ T5235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 62.772223][ T5235] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 62.773610][ T5235] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 62.774613][ T5235] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 62.775693][ T5235] sp : ffff800021a671e0 [ 62.776416][ T5235] x29: ffff800021a67300 x28: dfff800000000000 x27: 0000000000000000 [ 62.777666][ T5235] x26: ffff0000c88e7900 x25: ffff800021a674e0 x24: ffff0000de9ef5c0 [ 62.778885][ T5235] x23: ffff70000434ce4c x22: 00000000fffffff4 x21: 1fffe0001bd25dad [ 62.780228][ T5235] x20: ffff0000de92ed10 x19: ffff0000de92ed68 x18: 0000000000000001 [ 62.781556][ T5235] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 62.782827][ T5235] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 62.784219][ T5235] x11: 0000000000000000 x10: 0000000000000000 x9 : 149ebdb1c2631d00 [ 62.785539][ T5235] x8 : 149ebdb1c2631d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 62.786922][ T5235] x5 : ffff800021a66af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 62.788246][ T5235] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 62.789645][ T5235] Call trace: [ 62.790177][ T5235] btrfs_replace_file_extents+0xcc4/0x1238 [ 62.791174][ T5235] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 62.792222][ T5235] btrfs_prealloc_file_range+0x60/0x7c [ 62.793200][ T5235] btrfs_fallocate+0x1354/0x1638 [ 62.794135][ T5235] vfs_fallocate+0x4a4/0x5f4 [ 62.794932][ T5235] ioctl_preallocate+0x234/0x2dc [ 62.795689][ T5235] do_vfs_ioctl+0x1aa4/0x23f0 [ 62.796490][ T5235] __arm64_sys_ioctl+0xe4/0x1c8 [ 62.797376][ T5235] invoke_syscall+0x98/0x2b0 [ 62.798213][ T5235] el0_svc_common+0x138/0x258 [ 62.799031][ T5235] do_el0_svc+0x58/0x13c [ 62.799767][ T5235] el0_svc+0x78/0x1d0 [ 62.800391][ T5235] el0t_64_sync_handler+0xcc/0xe4 [ 62.801316][ T5235] el0t_64_sync+0x1a0/0x1a4 [ 62.802040][ T5235] irq event stamp: 81002 [ 62.802768][ T5235] hardirqs last enabled at (81001): [] __up_console_sem+0xb4/0xfc [ 62.804413][ T5235] hardirqs last disabled at (81002): [] el1_dbg+0x24/0x80 [ 62.805845][ T5235] softirqs last enabled at (80982): [] handle_softirqs+0xa40/0xbe4 [ 62.807496][ T5235] softirqs last disabled at (80971): [] __irq_exit_rcu+0x240/0x43c [ 62.809099][ T5235] ---[ end trace 8d10d9358935fd57 ]--- [ 62.811048][ T5235] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 62.812802][ T5235] BTRFS info (device loop0): forced readonly [ 63.007602][ T5256] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5256) [ 63.012171][ T5256] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 63.013841][ T5256] BTRFS info (device loop0): using free space tree [ 63.014951][ T5256] BTRFS info (device loop0): has skinny extents [ 63.033779][ T5256] BTRFS info (device loop0): enabling ssd optimizations [ 63.039125][ T5256] FAULT_INJECTION: forcing a failure. [ 63.039125][ T5256] name failslab, interval 1, probability 0, space 0, times 0 [ 63.041296][ T5256] CPU: 0 PID: 5256 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 63.042752][ T5256] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 63.044596][ T5256] Call trace: [ 63.045119][ T5256] dump_backtrace+0x0/0x458 [ 63.045913][ T5256] show_stack+0x2c/0x3c [ 63.046553][ T5256] __dump_stack+0x30/0x40 [ 63.047170][ T5256] dump_stack_lvl+0xf4/0x15c [ 63.047964][ T5256] dump_stack+0x1c/0x5c [ 63.048590][ T5256] should_fail+0x3bc/0x514 [ 63.049389][ T5256] __should_failslab+0xbc/0x10c [ 63.050279][ T5256] should_failslab+0x10/0x28 [ 63.051121][ T5256] slab_pre_alloc_hook+0x64/0xe8 [ 63.051968][ T5256] kmem_cache_alloc+0x94/0x3d4 [ 63.052732][ T5256] btrfs_add_delayed_data_ref+0x160/0xd08 [ 63.053717][ T5256] btrfs_alloc_reserved_file_extent+0x1a8/0x2d0 [ 63.054754][ T5256] btrfs_insert_replace_extent+0x840/0x9cc [ 63.055643][ T5256] btrfs_replace_file_extents+0x89c/0x1238 [ 63.056602][ T5256] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 63.057619][ T5256] btrfs_prealloc_file_range+0x60/0x7c [ 63.058573][ T5256] btrfs_fallocate+0x1354/0x1638 [ 63.059378][ T5256] vfs_fallocate+0x4a4/0x5f4 [ 63.060115][ T5256] ioctl_preallocate+0x234/0x2dc [ 63.060932][ T5256] do_vfs_ioctl+0x1aa4/0x23f0 [ 63.061833][ T5256] __arm64_sys_ioctl+0xe4/0x1c8 [ 63.062620][ T5256] invoke_syscall+0x98/0x2b0 [ 63.063416][ T5256] el0_svc_common+0x138/0x258 [ 63.064123][ T5256] do_el0_svc+0x58/0x13c [ 63.064860][ T5256] el0_svc+0x78/0x1d0 [ 63.065479][ T5256] el0t_64_sync_handler+0xcc/0xe4 [ 63.066364][ T5256] el0t_64_sync+0x1a0/0x1a4 [ 63.069610][ T5256] ------------[ cut here ]------------ [ 63.070605][ T5256] WARNING: CPU: 0 PID: 5256 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 [ 63.072179][ T5256] Modules linked in: [ 63.072808][ T5256] CPU: 0 PID: 5256 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 63.074252][ T5256] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 63.075939][ T5256] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 63.077146][ T5256] pc : btrfs_replace_file_extents+0xcc4/0x1238 [ 63.078158][ T5256] lr : btrfs_replace_file_extents+0xcc4/0x1238 [ 63.079119][ T5256] sp : ffff800021a671e0 [ 63.079812][ T5256] x29: ffff800021a67300 x28: dfff800000000000 x27: 0000000000000000 [ 63.081159][ T5256] x26: ffff0000c8bca400 x25: ffff800021a674e0 x24: ffff0000de9ebae0 [ 63.082572][ T5256] x23: ffff70000434ce4c x22: 00000000fffffff4 x21: 1fffe0001bd25def [ 63.083908][ T5256] x20: ffff0000de92ef20 x19: ffff0000de92ef78 x18: 0000000000000001 [ 63.085221][ T5256] x17: 0000000000000000 x16: ffff80001125f0fc x15: 00000000ffffffff [ 63.086417][ T5256] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 63.087558][ T5256] x11: 0000000000000000 x10: 0000000000000000 x9 : f4afa048880fdf00 [ 63.088912][ T5256] x8 : f4afa048880fdf00 x7 : 0000000000000001 x6 : 0000000000000001 [ 63.090126][ T5256] x5 : ffff800021a66af8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 63.091393][ T5256] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 63.092515][ T5256] Call trace: [ 63.093041][ T5256] btrfs_replace_file_extents+0xcc4/0x1238 [ 63.093896][ T5256] __btrfs_prealloc_file_range+0x3c8/0xbcc [ 63.094785][ T5256] btrfs_prealloc_file_range+0x60/0x7c [ 63.095616][ T5256] btrfs_fallocate+0x1354/0x1638 [ 63.096359][ T5256] vfs_fallocate+0x4a4/0x5f4 [ 63.097068][ T5256] ioctl_preallocate+0x234/0x2dc [ 63.097794][ T5256] do_vfs_ioctl+0x1aa4/0x23f0 [ 63.098476][ T5256] __arm64_sys_ioctl+0xe4/0x1c8 [ 63.099203][ T5256] invoke_syscall+0x98/0x2b0 [ 63.099871][ T5256] el0_svc_common+0x138/0x258 [ 63.100544][ T5256] do_el0_svc+0x58/0x13c [ 63.101186][ T5256] el0_svc+0x78/0x1d0 [ 63.101792][ T5256] el0t_64_sync_handler+0xcc/0xe4 [ 63.102533][ T5256] el0t_64_sync+0x1a0/0x1a4 [ 63.103193][ T5256] irq event stamp: 80286 [ 63.103791][ T5256] hardirqs last enabled at (80285): [] __up_console_sem+0xb4/0xfc [ 63.105175][ T5256] hardirqs last disabled at (80286): [] el1_dbg+0x24/0x80 [ 63.106422][ T5256] softirqs last enabled at (80266): [] handle_softirqs+0xa40/0xbe4 [ 63.107826][ T5256] softirqs last disabled at (80115): [] __irq_exit_rcu+0x240/0x43c [ 63.109242][ T5256] ---[ end trace 8d10d9358935fd58 ]--- [ 63.110966][ T5256] BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory [ 63.112716][ T5256] BTRFS info (device loop0): forced readonly