[ 36.030657][ T136] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 38.439298][ T136] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 38.489414][ T136] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 38.540176][ T136] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 39.699113][ T136] device hsr_slave_0 left promiscuous mode [ 39.745845][ T136] device hsr_slave_1 left promiscuous mode [ 39.825662][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 39.826973][ T136] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 39.828856][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 39.829910][ T136] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 39.831334][ T136] device bridge_slave_1 left promiscuous mode [ 39.832657][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.866886][ T136] device bridge_slave_0 left promiscuous mode [ 39.867796][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.005547][ T136] device veth1_macvtap left promiscuous mode [ 40.006570][ T136] device veth0_macvtap left promiscuous mode [ 40.007501][ T136] device veth1_vlan left promiscuous mode [ 40.008424][ T136] device veth0_vlan left promiscuous mode [ 40.111229][ T136] team0 (unregistering): Port device team_slave_1 removed [ 40.118533][ T136] team0 (unregistering): Port device team_slave_0 removed [ 40.123632][ T136] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 40.149326][ T136] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 40.281376][ T136] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.1.115' (ED25519) to the list of known hosts. 1970/01/01 00:00:40 ignoring optional flag "type"="gce" 1970/01/01 00:00:40 parsed 1 programs [ 40.909626][ T4248] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS 1970/01/01 00:00:40 executed programs: 0 [ 40.980239][ T4256] chnl_net:caif_netlink_parms(): no params data found [ 40.998278][ T4256] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.999424][ T4256] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.001031][ T4256] device bridge_slave_0 entered promiscuous mode [ 41.003451][ T4256] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.004720][ T4256] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.006572][ T4256] device bridge_slave_1 entered promiscuous mode [ 41.015898][ T4256] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 41.018391][ T4256] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 41.026862][ T4256] team0: Port device team_slave_0 added [ 41.029708][ T4256] team0: Port device team_slave_1 added [ 41.037156][ T4256] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 41.038313][ T4256] 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. [ 41.042047][ T4256] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 41.044077][ T4256] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 41.045172][ T4256] 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. [ 41.049513][ T4256] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 41.109267][ T4256] device hsr_slave_0 entered promiscuous mode [ 41.135621][ T4256] device hsr_slave_1 entered promiscuous mode [ 41.752222][ T4256] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 41.787207][ T4256] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 41.827403][ T4256] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 41.857348][ T4256] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 41.930218][ T4256] 8021q: adding VLAN 0 to HW filter on device bond0 [ 41.938486][ T777] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 41.940020][ T777] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 41.949355][ T4256] 8021q: adding VLAN 0 to HW filter on device team0 [ 41.951792][ T777] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 41.953273][ T777] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 41.954616][ T777] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.955754][ T777] bridge0: port 1(bridge_slave_0) entered forwarding state [ 41.961764][ T777] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 41.972727][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 41.974362][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 41.976620][ T579] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.977694][ T579] bridge0: port 2(bridge_slave_1) entered forwarding state [ 41.980299][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 41.983922][ T752] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 41.986100][ T777] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 41.988021][ T777] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 41.989554][ T777] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 41.993362][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 41.994949][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 42.002121][ T4256] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 42.003637][ T4256] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 42.007692][ T752] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 42.009461][ T752] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 42.010965][ T752] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 42.012308][ T752] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 42.013758][ T752] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 42.059631][ T4256] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 42.066247][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 42.067450][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 42.068644][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 42.070485][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 42.077619][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 42.079152][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 42.080987][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 42.082386][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 42.085324][ T4256] device veth0_vlan entered promiscuous mode [ 42.091943][ T4256] device veth1_vlan entered promiscuous mode [ 42.100663][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 42.102130][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 42.104122][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 42.107029][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 42.109883][ T4256] device veth0_macvtap entered promiscuous mode [ 42.112452][ T4256] device veth1_macvtap entered promiscuous mode [ 42.118707][ T4256] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 42.119925][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 42.121336][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 42.122680][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 42.124157][ T579] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 42.129147][ T4256] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 42.131085][ T752] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 42.132573][ T752] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 42.134592][ T4256] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 42.136754][ T4256] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 42.137999][ T4256] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 42.139295][ T4256] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 42.284283][ T4360] loop0: detected capacity change from 0 to 32768 [ 42.294652][ T4360] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4360) [ 42.313023][ T4360] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 42.314491][ T4360] BTRFS info (device loop0): using free space tree [ 42.315948][ T4360] BTRFS info (device loop0): has skinny extents [ 42.369942][ T4360] BTRFS info (device loop0): enabling ssd optimizations [ 42.381439][ T4360] FAULT_INJECTION: forcing a failure. [ 42.381439][ T4360] name failslab, interval 1, probability 0, space 0, times 1 [ 42.383486][ T4360] CPU: 0 PID: 4360 Comm: syz-executor.0 Not tainted syzkaller #0 [ 42.384587][ T4360] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 42.386346][ T4360] Call trace: [ 42.386841][ T4360] dump_backtrace+0x0/0x458 [ 42.387508][ T4360] show_stack+0x2c/0x3c [ 42.388137][ T4360] __dump_stack+0x30/0x40 [ 42.388787][ T4360] dump_stack_lvl+0xf4/0x15c [ 42.389464][ T4360] dump_stack+0x1c/0x5c [ 42.390116][ T4360] should_fail+0x3c8/0x520 [ 42.390783][ T4360] __should_failslab+0xbc/0x10c [ 42.391525][ T4360] should_failslab+0x10/0x28 [ 42.392215][ T4360] slab_pre_alloc_hook+0x64/0xe8 [ 42.392981][ T4360] kmem_cache_alloc+0x94/0x3d8 [ 42.393733][ T4360] btrfs_alloc_path+0x5c/0x68 [ 42.394486][ T4360] btrfs_insert_inode_ref+0xf4/0xa24 [ 42.395286][ T4360] btrfs_rename2+0x1f20/0x323c [ 42.396047][ T4360] vfs_rename+0xb08/0xe3c [ 42.396732][ T4360] do_renameat2+0x73c/0xc90 [ 42.397462][ T4360] __arm64_sys_renameat2+0xe8/0x104 [ 42.398302][ T4360] invoke_syscall+0x98/0x28c [ 42.399016][ T4360] el0_svc_common+0x13c/0x258 [ 42.399785][ T4360] do_el0_svc+0x5c/0x140 [ 42.400573][ T4360] el0_svc+0x78/0x1d0 [ 42.401323][ T4360] el0t_64_sync_handler+0xcc/0xe4 [ 42.402094][ T4360] el0t_64_sync+0x1a0/0x1a4 [ 42.639501][ T4433] loop0: detected capacity change from 0 to 32768 [ 42.652594][ T4433] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4433) [ 42.662384][ T4433] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 42.664026][ T4433] BTRFS info (device loop0): using free space tree [ 42.664952][ T4433] BTRFS info (device loop0): has skinny extents [ 42.729056][ T4433] BTRFS info (device loop0): enabling ssd optimizations [ 42.742540][ T4433] FAULT_INJECTION: forcing a failure. [ 42.742540][ T4433] name failslab, interval 1, probability 0, space 0, times 0 [ 42.744536][ T4433] CPU: 0 PID: 4433 Comm: syz-executor.0 Not tainted syzkaller #0 [ 42.745713][ T4433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 42.747332][ T4433] Call trace: [ 42.747816][ T4433] dump_backtrace+0x0/0x458 [ 42.748552][ T4433] show_stack+0x2c/0x3c [ 42.749148][ T4433] __dump_stack+0x30/0x40 [ 42.749833][ T4433] dump_stack_lvl+0xf4/0x15c [ 42.750621][ T4433] dump_stack+0x1c/0x5c [ 42.751227][ T4433] should_fail+0x3c8/0x520 [ 42.751937][ T4433] __should_failslab+0xbc/0x10c [ 42.752689][ T4433] should_failslab+0x10/0x28 [ 42.753405][ T4433] slab_pre_alloc_hook+0x64/0xe8 [ 42.754121][ T4433] kmem_cache_alloc+0x94/0x3d8 [ 42.754923][ T4433] btrfs_alloc_path+0x5c/0x68 [ 42.755634][ T4433] __btrfs_unlink_inode+0x1e0/0xab8 [ 42.756463][ T4433] btrfs_rename2+0x21a4/0x323c [ 42.757211][ T4433] vfs_rename+0xb08/0xe3c [ 42.757918][ T4433] do_renameat2+0x73c/0xc90 [ 42.758586][ T4433] __arm64_sys_renameat2+0xe8/0x104 [ 42.759374][ T4433] invoke_syscall+0x98/0x28c [ 42.760040][ T4433] el0_svc_common+0x13c/0x258 [ 42.760711][ T4433] do_el0_svc+0x5c/0x140 [ 42.761344][ T4433] el0_svc+0x78/0x1d0 [ 42.761929][ T4433] el0t_64_sync_handler+0xcc/0xe4 [ 42.762679][ T4433] el0t_64_sync+0x1a0/0x1a4 [ 42.768579][ T4433] ------------[ cut here ]------------ [ 42.769516][ T4433] WARNING: CPU: 0 PID: 4433 at fs/btrfs/inode.c:9950 btrfs_rename2+0x27dc/0x323c [ 42.770816][ T4433] Modules linked in: [ 42.771392][ T4433] CPU: 0 PID: 4433 Comm: syz-executor.0 Not tainted syzkaller #0 [ 42.772579][ T4433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 42.774194][ T4433] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 42.775337][ T4433] pc : btrfs_rename2+0x27dc/0x323c [ 42.776173][ T4433] lr : btrfs_rename2+0x27dc/0x323c [ 42.776944][ T4433] sp : ffff80001fa37880 [ 42.777566][ T4433] x29: ffff80001fa37980 x28: ffff0000d7348000 x27: ffff0000dd09663c [ 42.778879][ T4433] x26: ffff0000c5ffe000 x25: 00000000fffffff4 x24: ffff0000e2971860 [ 42.780120][ T4433] x23: ffff0000e290ac00 x22: 0000000000000000 x21: ffff0000dd3f93c8 [ 42.781468][ T4433] x20: 1fffe0001ba7f279 x19: ffff0000dd3f9370 x18: 0000000000000000 [ 42.782743][ T4433] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 42.783983][ T4433] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 42.785240][ T4433] x11: ff8080000830061c x10: 0000000000000000 x9 : fe9349a75bbbc500 [ 42.786442][ T4433] x8 : fe9349a75bbbc500 x7 : 0000000000000001 x6 : 0000000000000001 [ 42.787630][ T4433] x5 : ffff80001fa37198 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 42.788920][ T4433] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 42.790207][ T4433] Call trace: [ 42.790711][ T4433] btrfs_rename2+0x27dc/0x323c [ 42.791421][ T4433] vfs_rename+0xb08/0xe3c [ 42.792126][ T4433] do_renameat2+0x73c/0xc90 [ 42.792873][ T4433] __arm64_sys_renameat2+0xe8/0x104 [ 42.793733][ T4433] invoke_syscall+0x98/0x28c [ 42.794507][ T4433] el0_svc_common+0x13c/0x258 [ 42.795244][ T4433] do_el0_svc+0x5c/0x140 [ 42.795869][ T4433] el0_svc+0x78/0x1d0 [ 42.796463][ T4433] el0t_64_sync_handler+0xcc/0xe4 [ 42.797268][ T4433] el0t_64_sync+0x1a0/0x1a4 [ 42.797982][ T4433] irq event stamp: 81980 [ 42.798652][ T4433] hardirqs last enabled at (81979): [] __up_console_sem+0xb4/0xfc [ 42.800244][ T4433] hardirqs last disabled at (81980): [] el1_dbg+0x24/0x80 [ 42.801667][ T4433] softirqs last enabled at (81960): [] handle_softirqs+0xa70/0xc14 [ 42.803227][ T4433] softirqs last disabled at (81945): [] __irq_exit_rcu+0x240/0x434 [ 42.804693][ T4433] ---[ end trace ad09fd218400f2c9 ]--- [ 42.811539][ T4433] BTRFS: error (device loop0) in btrfs_rename:9950: errno=-12 Out of memory [ 42.812942][ T4433] BTRFS info (device loop0): forced readonly [ 42.966016][ T4406] Bluetooth: hci0: command 0x0409 tx timeout [ 43.032440][ T4491] loop0: detected capacity change from 0 to 32768 [ 43.043543][ T4491] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4491) [ 43.057450][ T4491] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 43.059150][ T4491] BTRFS info (device loop0): using free space tree [ 43.060097][ T4491] BTRFS info (device loop0): has skinny extents [ 43.121219][ T4491] BTRFS info (device loop0): enabling ssd optimizations [ 43.147915][ T4491] FAULT_INJECTION: forcing a failure. [ 43.147915][ T4491] name failslab, interval 1, probability 0, space 0, times 0 [ 43.150609][ T4491] CPU: 1 PID: 4491 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 43.152058][ T4491] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 43.153674][ T4491] Call trace: [ 43.154232][ T4491] dump_backtrace+0x0/0x458 [ 43.154942][ T4491] show_stack+0x2c/0x3c [ 43.155634][ T4491] __dump_stack+0x30/0x40 [ 43.156357][ T4491] dump_stack_lvl+0xf4/0x15c [ 43.157095][ T4491] dump_stack+0x1c/0x5c [ 43.157746][ T4491] should_fail+0x3c8/0x520 [ 43.158406][ T4491] __should_failslab+0xbc/0x10c [ 43.159123][ T4491] should_failslab+0x10/0x28 [ 43.159784][ T4491] slab_pre_alloc_hook+0x64/0xe8 [ 43.160586][ T4491] kmem_cache_alloc+0x94/0x3d8 [ 43.161284][ T4491] btrfs_alloc_path+0x5c/0x68 [ 43.162053][ T4491] btrfs_insert_inode_ref+0xf4/0xa24 [ 43.162825][ T4491] btrfs_rename2+0x1f20/0x323c [ 43.163526][ T4491] vfs_rename+0xb08/0xe3c [ 43.164246][ T4491] do_renameat2+0x73c/0xc90 [ 43.164860][ T4491] __arm64_sys_renameat2+0xe8/0x104 [ 43.165628][ T4491] invoke_syscall+0x98/0x28c [ 43.166321][ T4491] el0_svc_common+0x13c/0x258 [ 43.166980][ T4491] do_el0_svc+0x5c/0x140 [ 43.167661][ T4491] el0_svc+0x78/0x1d0 [ 43.168318][ T4491] el0t_64_sync_handler+0xcc/0xe4 [ 43.169140][ T4491] el0t_64_sync+0x1a0/0x1a4 [ 43.391737][ T4546] loop0: detected capacity change from 0 to 32768 [ 43.402044][ T4546] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4546) [ 43.411218][ T4546] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 43.412693][ T4546] BTRFS info (device loop0): using free space tree [ 43.413811][ T4546] BTRFS info (device loop0): has skinny extents [ 43.477783][ T4546] BTRFS info (device loop0): enabling ssd optimizations [ 43.487673][ T4546] FAULT_INJECTION: forcing a failure. [ 43.487673][ T4546] name failslab, interval 1, probability 0, space 0, times 0 [ 43.489564][ T4546] CPU: 1 PID: 4546 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 43.490911][ T4546] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 43.492497][ T4546] Call trace: [ 43.493017][ T4546] dump_backtrace+0x0/0x458 [ 43.493735][ T4546] show_stack+0x2c/0x3c [ 43.494395][ T4546] __dump_stack+0x30/0x40 [ 43.495073][ T4546] dump_stack_lvl+0xf4/0x15c [ 43.495783][ T4546] dump_stack+0x1c/0x5c [ 43.496493][ T4546] should_fail+0x3c8/0x520 [ 43.497264][ T4546] __should_failslab+0xbc/0x10c [ 43.498014][ T4546] should_failslab+0x10/0x28 [ 43.498750][ T4546] slab_pre_alloc_hook+0x64/0xe8 [ 43.499496][ T4546] kmem_cache_alloc+0x94/0x3d8 [ 43.500187][ T4546] btrfs_alloc_path+0x5c/0x68 [ 43.500833][ T4546] btrfs_check_dir_item_collision+0x9c/0x2ec [ 43.501704][ T4546] btrfs_rename2+0x1a54/0x323c [ 43.502483][ T4546] vfs_rename+0xb08/0xe3c [ 43.503109][ T4546] do_renameat2+0x73c/0xc90 [ 43.503794][ T4546] __arm64_sys_renameat2+0xe8/0x104 [ 43.504559][ T4546] invoke_syscall+0x98/0x28c [ 43.505268][ T4546] el0_svc_common+0x13c/0x258 [ 43.505928][ T4546] do_el0_svc+0x5c/0x140 [ 43.506605][ T4546] el0_svc+0x78/0x1d0 [ 43.507183][ T4546] el0t_64_sync_handler+0xcc/0xe4 [ 43.507931][ T4546] el0t_64_sync+0x1a0/0x1a4 [ 43.659760][ T4605] loop0: detected capacity change from 0 to 32768 [ 43.662220][ T4605] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4605) [ 43.667147][ T4605] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 43.668678][ T4605] BTRFS info (device loop0): using free space tree [ 43.669630][ T4605] BTRFS info (device loop0): has skinny extents [ 43.681163][ T4605] BTRFS info (device loop0): enabling ssd optimizations [ 43.690598][ T4605] FAULT_INJECTION: forcing a failure. [ 43.690598][ T4605] name failslab, interval 1, probability 0, space 0, times 0 [ 43.692703][ T4605] CPU: 1 PID: 4605 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 43.694134][ T4605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 43.695693][ T4605] Call trace: [ 43.696188][ T4605] dump_backtrace+0x0/0x458 [ 43.696853][ T4605] show_stack+0x2c/0x3c [ 43.697587][ T4605] __dump_stack+0x30/0x40 [ 43.698402][ T4605] dump_stack_lvl+0xf4/0x15c [ 43.699116][ T4605] dump_stack+0x1c/0x5c [ 43.699709][ T4605] should_fail+0x3c8/0x520 [ 43.700399][ T4605] __should_failslab+0xbc/0x10c [ 43.701108][ T4605] should_failslab+0x10/0x28 [ 43.701851][ T4605] slab_pre_alloc_hook+0x64/0xe8 [ 43.702655][ T4605] kmem_cache_alloc+0x94/0x3d8 [ 43.703373][ T4605] btrfs_alloc_path+0x5c/0x68 [ 43.704141][ T4605] __btrfs_unlink_inode+0x1e0/0xab8 [ 43.704923][ T4605] btrfs_rename2+0x21a4/0x323c [ 43.705644][ T4605] vfs_rename+0xb08/0xe3c [ 43.706292][ T4605] do_renameat2+0x73c/0xc90 [ 43.707046][ T4605] __arm64_sys_renameat2+0xe8/0x104 [ 43.707834][ T4605] invoke_syscall+0x98/0x28c [ 43.708539][ T4605] el0_svc_common+0x13c/0x258 [ 43.709251][ T4605] do_el0_svc+0x5c/0x140 [ 43.709917][ T4605] el0_svc+0x78/0x1d0 [ 43.710540][ T4605] el0t_64_sync_handler+0xcc/0xe4 [ 43.711312][ T4605] el0t_64_sync+0x1a0/0x1a4 [ 43.712956][ T4605] ------------[ cut here ]------------ [ 43.713867][ T4605] WARNING: CPU: 1 PID: 4605 at fs/btrfs/inode.c:9950 btrfs_rename2+0x27dc/0x323c [ 43.715289][ T4605] Modules linked in: [ 43.715883][ T4605] CPU: 1 PID: 4605 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 43.717320][ T4605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 43.718883][ T4605] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 43.720052][ T4605] pc : btrfs_rename2+0x27dc/0x323c [ 43.720922][ T4605] lr : btrfs_rename2+0x27dc/0x323c [ 43.721666][ T4605] sp : ffff80001fbc7880 [ 43.722284][ T4605] x29: ffff80001fbc7980 x28: ffff0000c9d5c000 x27: ffff0000dd0e1084 [ 43.723533][ T4605] x26: ffff0000cf81e000 x25: 00000000fffffff4 x24: ffff0000e2974970 [ 43.724735][ T4605] x23: ffff0000e2975d10 x22: 0000000000000000 x21: ffff0000ded8a688 [ 43.725939][ T4605] x20: 1fffe0001bdb14d1 x19: ffff0000ded8a630 x18: 0000000000000000 [ 43.727230][ T4605] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 43.728527][ T4605] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 43.729689][ T4605] x11: ff8080000830061c x10: 0000000000000000 x9 : c255464854d83e00 [ 43.730837][ T4605] x8 : c255464854d83e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 43.732027][ T4605] x5 : ffff80001fbc7198 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 43.733305][ T4605] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 43.734540][ T4605] Call trace: [ 43.735019][ T4605] btrfs_rename2+0x27dc/0x323c [ 43.735832][ T4605] vfs_rename+0xb08/0xe3c [ 43.736506][ T4605] do_renameat2+0x73c/0xc90 [ 43.737154][ T4605] __arm64_sys_renameat2+0xe8/0x104 [ 43.737925][ T4605] invoke_syscall+0x98/0x28c [ 43.738596][ T4605] el0_svc_common+0x13c/0x258 [ 43.739252][ T4605] do_el0_svc+0x5c/0x140 [ 43.739920][ T4605] el0_svc+0x78/0x1d0 [ 43.740550][ T4605] el0t_64_sync_handler+0xcc/0xe4 [ 43.741375][ T4605] el0t_64_sync+0x1a0/0x1a4 [ 43.742068][ T4605] irq event stamp: 80040 [ 43.742719][ T4605] hardirqs last enabled at (80039): [] __up_console_sem+0xb4/0xfc [ 43.744148][ T4605] hardirqs last disabled at (80040): [] el1_dbg+0x24/0x80 [ 43.745599][ T4605] softirqs last enabled at (80020): [] handle_softirqs+0xa70/0xc14 [ 43.747136][ T4605] softirqs last disabled at (79917): [] __irq_exit_rcu+0x240/0x434 [ 43.748549][ T4605] ---[ end trace ad09fd218400f2ca ]--- [ 43.750308][ T4605] BTRFS: error (device loop0) in btrfs_rename:9950: errno=-12 Out of memory [ 43.751818][ T4605] BTRFS info (device loop0): forced readonly [ 43.924229][ T4626] loop0: detected capacity change from 0 to 32768 [ 43.927416][ T4626] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4626) [ 43.930610][ T4626] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 43.932967][ T4626] BTRFS info (device loop0): using free space tree [ 43.934075][ T4626] BTRFS info (device loop0): has skinny extents [ 43.951126][ T4626] BTRFS info (device loop0): enabling ssd optimizations [ 43.956584][ T4626] FAULT_INJECTION: forcing a failure. [ 43.956584][ T4626] name failslab, interval 1, probability 0, space 0, times 0 [ 43.958683][ T4626] CPU: 0 PID: 4626 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 43.960026][ T4626] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 43.961692][ T4626] Call trace: [ 43.962134][ T4626] dump_backtrace+0x0/0x458 [ 43.962790][ T4626] show_stack+0x2c/0x3c [ 43.963350][ T4626] __dump_stack+0x30/0x40 [ 43.963966][ T4626] dump_stack_lvl+0xf4/0x15c [ 43.964663][ T4626] dump_stack+0x1c/0x5c [ 43.965305][ T4626] should_fail+0x3c8/0x520 [ 43.965961][ T4626] __should_failslab+0xbc/0x10c [ 43.966726][ T4626] should_failslab+0x10/0x28 [ 43.967427][ T4626] slab_pre_alloc_hook+0x64/0xe8 [ 43.968233][ T4626] kmem_cache_alloc+0x94/0x3d8 [ 43.968964][ T4626] btrfs_alloc_path+0x5c/0x68 [ 43.969625][ T4626] btrfs_insert_inode_ref+0xf4/0xa24 [ 43.970345][ T4626] btrfs_rename2+0x1f20/0x323c [ 43.971094][ T4626] vfs_rename+0xb08/0xe3c [ 43.971794][ T4626] do_renameat2+0x73c/0xc90 [ 43.972483][ T4626] __arm64_sys_renameat2+0xe8/0x104 [ 43.973418][ T4626] invoke_syscall+0x98/0x28c [ 43.974057][ T4626] el0_svc_common+0x13c/0x258 [ 43.974801][ T4626] do_el0_svc+0x5c/0x140 [ 43.975435][ T4626] el0_svc+0x78/0x1d0 [ 43.976039][ T4626] el0t_64_sync_handler+0xcc/0xe4 [ 43.976802][ T4626] el0t_64_sync+0x1a0/0x1a4 [ 44.156964][ T4651] loop0: detected capacity change from 0 to 32768 [ 44.161008][ T4651] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4651) [ 44.169056][ T4651] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 44.170729][ T4651] BTRFS info (device loop0): using free space tree [ 44.171800][ T4651] BTRFS info (device loop0): has skinny extents [ 44.186752][ T4651] BTRFS info (device loop0): enabling ssd optimizations [ 44.193065][ T4651] FAULT_INJECTION: forcing a failure. [ 44.193065][ T4651] name failslab, interval 1, probability 0, space 0, times 0 [ 44.196464][ T4651] CPU: 0 PID: 4651 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 44.197984][ T4651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 44.199650][ T4651] Call trace: [ 44.200112][ T4651] dump_backtrace+0x0/0x458 [ 44.200884][ T4651] show_stack+0x2c/0x3c [ 44.201568][ T4651] __dump_stack+0x30/0x40 [ 44.202333][ T4651] dump_stack_lvl+0xf4/0x15c [ 44.203036][ T4651] dump_stack+0x1c/0x5c [ 44.203816][ T4651] should_fail+0x3c8/0x520 [ 44.204514][ T4651] __should_failslab+0xbc/0x10c [ 44.205248][ T4651] should_failslab+0x10/0x28 [ 44.205912][ T4651] slab_pre_alloc_hook+0x64/0xe8 [ 44.206648][ T4651] kmem_cache_alloc+0x94/0x3d8 [ 44.207348][ T4651] start_transaction+0x530/0x1438 [ 44.208173][ T4651] btrfs_start_transaction+0x34/0x44 [ 44.209011][ T4651] btrfs_rename2+0x1b7c/0x323c [ 44.209814][ T4651] vfs_rename+0xb08/0xe3c [ 44.210447][ T4651] do_renameat2+0x73c/0xc90 [ 44.211226][ T4651] __arm64_sys_renameat2+0xe8/0x104 [ 44.212088][ T4651] invoke_syscall+0x98/0x28c [ 44.212775][ T4651] el0_svc_common+0x13c/0x258 [ 44.213500][ T4651] do_el0_svc+0x5c/0x140 [ 44.214193][ T4651] el0_svc+0x78/0x1d0 [ 44.214789][ T4651] el0t_64_sync_handler+0xcc/0xe4 [ 44.215613][ T4651] el0t_64_sync+0x1a0/0x1a4 [ 44.407868][ T4672] loop0: detected capacity change from 0 to 32768 [ 44.412461][ T4672] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4672) [ 44.417790][ T4672] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 44.419468][ T4672] BTRFS info (device loop0): using free space tree [ 44.420435][ T4672] BTRFS info (device loop0): has skinny extents [ 44.430695][ T4672] BTRFS info (device loop0): enabling ssd optimizations [ 44.436422][ T4672] FAULT_INJECTION: forcing a failure. [ 44.436422][ T4672] name failslab, interval 1, probability 0, space 0, times 0 [ 44.438619][ T4672] CPU: 0 PID: 4672 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 44.439984][ T4672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 44.441560][ T4672] Call trace: [ 44.442066][ T4672] dump_backtrace+0x0/0x458 [ 44.442694][ T4672] show_stack+0x2c/0x3c [ 44.443326][ T4672] __dump_stack+0x30/0x40 [ 44.443964][ T4672] dump_stack_lvl+0xf4/0x15c [ 44.444676][ T4672] dump_stack+0x1c/0x5c [ 44.445347][ T4672] should_fail+0x3c8/0x520 [ 44.446116][ T4672] __should_failslab+0xbc/0x10c [ 44.446890][ T4672] should_failslab+0x10/0x28 [ 44.447597][ T4672] slab_pre_alloc_hook+0x64/0xe8 [ 44.448464][ T4672] kmem_cache_alloc+0x94/0x3d8 [ 44.449532][ T4672] btrfs_alloc_path+0x5c/0x68 [ 44.451544][ T4672] btrfs_insert_inode_ref+0xf4/0xa24 [ 44.452476][ T4672] btrfs_rename2+0x1f20/0x323c [ 44.453333][ T4672] vfs_rename+0xb08/0xe3c [ 44.453997][ T4672] do_renameat2+0x73c/0xc90 [ 44.454669][ T4672] __arm64_sys_renameat2+0xe8/0x104 [ 44.455504][ T4672] invoke_syscall+0x98/0x28c [ 44.456193][ T4672] el0_svc_common+0x13c/0x258 [ 44.456933][ T4672] do_el0_svc+0x5c/0x140 [ 44.457687][ T4672] el0_svc+0x78/0x1d0 [ 44.458287][ T4672] el0t_64_sync_handler+0xcc/0xe4 [ 44.459091][ T4672] el0t_64_sync+0x1a0/0x1a4 [ 44.641343][ T4693] loop0: detected capacity change from 0 to 32768 [ 44.644045][ T4693] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4693) [ 44.648717][ T4693] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 44.650488][ T4693] BTRFS info (device loop0): using free space tree [ 44.651490][ T4693] BTRFS info (device loop0): has skinny extents [ 44.663072][ T4693] BTRFS info (device loop0): enabling ssd optimizations [ 44.669114][ T4693] FAULT_INJECTION: forcing a failure. [ 44.669114][ T4693] name failslab, interval 1, probability 0, space 0, times 0 [ 44.671178][ T4693] CPU: 1 PID: 4693 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 44.672607][ T4693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 44.674273][ T4693] Call trace: [ 44.674776][ T4693] dump_backtrace+0x0/0x458 [ 44.675492][ T4693] show_stack+0x2c/0x3c [ 44.676162][ T4693] __dump_stack+0x30/0x40 [ 44.676913][ T4693] dump_stack_lvl+0xf4/0x15c [ 44.677614][ T4693] dump_stack+0x1c/0x5c [ 44.678273][ T4693] should_fail+0x3c8/0x520 [ 44.678938][ T4693] __should_failslab+0xbc/0x10c [ 44.679750][ T4693] should_failslab+0x10/0x28 [ 44.680492][ T4693] slab_pre_alloc_hook+0x64/0xe8 [ 44.681265][ T4693] kmem_cache_alloc+0x94/0x3d8 [ 44.681995][ T4693] btrfs_alloc_path+0x5c/0x68 [ 44.682729][ T4693] __btrfs_unlink_inode+0x1e0/0xab8 [ 44.683536][ T4693] btrfs_rename2+0x21a4/0x323c [ 44.684232][ T4693] vfs_rename+0xb08/0xe3c [ 44.684844][ T4693] do_renameat2+0x73c/0xc90 [ 44.685540][ T4693] __arm64_sys_renameat2+0xe8/0x104 [ 44.686264][ T4693] invoke_syscall+0x98/0x28c [ 44.687061][ T4693] el0_svc_common+0x13c/0x258 [ 44.687773][ T4693] do_el0_svc+0x5c/0x140 [ 44.688418][ T4693] el0_svc+0x78/0x1d0 [ 44.689056][ T4693] el0t_64_sync_handler+0xcc/0xe4 [ 44.689844][ T4693] el0t_64_sync+0x1a0/0x1a4 [ 44.692081][ T4693] ------------[ cut here ]------------ [ 44.693006][ T4693] WARNING: CPU: 1 PID: 4693 at fs/btrfs/inode.c:9950 btrfs_rename2+0x27dc/0x323c [ 44.694295][ T4693] Modules linked in: [ 44.694910][ T4693] CPU: 1 PID: 4693 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 44.696252][ T4693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 44.697709][ T4693] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 44.698913][ T4693] pc : btrfs_rename2+0x27dc/0x323c [ 44.699728][ T4693] lr : btrfs_rename2+0x27dc/0x323c [ 44.700586][ T4693] sp : ffff800020287880 [ 44.701245][ T4693] x29: ffff800020287980 x28: ffff0000d2aec000 x27: ffff0000dd2edc44 [ 44.702540][ T4693] x26: ffff0000d64c8000 x25: 00000000fffffff4 x24: ffff0000e28f04c0 [ 44.703671][ T4693] x23: ffff0000e28f1860 x22: 0000000000000000 x21: ffff0000ded8a898 [ 44.704996][ T4693] x20: 1fffe0001bdb1513 x19: ffff0000ded8a840 x18: 0000000000000000 [ 44.706172][ T4693] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 44.707390][ T4693] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 44.708622][ T4693] x11: ff8080000830061c x10: 0000000000000000 x9 : 93ab63ae8c18e100 [ 44.709812][ T4693] x8 : 93ab63ae8c18e100 x7 : 0000000000000001 x6 : 0000000000000001 [ 44.711052][ T4693] x5 : ffff800020287198 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 44.712272][ T4693] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 44.713593][ T4693] Call trace: [ 44.714202][ T4693] btrfs_rename2+0x27dc/0x323c [ 44.714907][ T4693] vfs_rename+0xb08/0xe3c [ 44.715641][ T4693] do_renameat2+0x73c/0xc90 [ 44.716344][ T4693] __arm64_sys_renameat2+0xe8/0x104 [ 44.717249][ T4693] invoke_syscall+0x98/0x28c [ 44.717967][ T4693] el0_svc_common+0x13c/0x258 [ 44.718634][ T4693] do_el0_svc+0x5c/0x140 [ 44.719303][ T4693] el0_svc+0x78/0x1d0 [ 44.719878][ T4693] el0t_64_sync_handler+0xcc/0xe4 [ 44.720719][ T4693] el0t_64_sync+0x1a0/0x1a4 [ 44.721375][ T4693] irq event stamp: 79818 [ 44.722000][ T4693] hardirqs last enabled at (79817): [] __up_console_sem+0xb4/0xfc [ 44.723411][ T4693] hardirqs last disabled at (79818): [] el1_dbg+0x24/0x80 [ 44.724731][ T4693] softirqs last enabled at (79798): [] handle_softirqs+0xa70/0xc14 [ 44.726204][ T4693] softirqs last disabled at (79781): [] __irq_exit_rcu+0x240/0x434 [ 44.727709][ T4693] ---[ end trace ad09fd218400f2cb ]--- [ 44.729663][ T4693] BTRFS: error (device loop0) in btrfs_rename:9950: errno=-12 Out of memory [ 44.731024][ T4693] BTRFS info (device loop0): forced readonly [ 44.914929][ T4714] loop0: detected capacity change from 0 to 32768 [ 44.917751][ T4714] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4714) [ 44.921585][ T4714] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 44.923132][ T4714] BTRFS info (device loop0): using free space tree [ 44.924110][ T4714] BTRFS info (device loop0): has skinny extents [ 44.944791][ T4714] BTRFS info (device loop0): enabling ssd optimizations [ 44.951572][ T4714] FAULT_INJECTION: forcing a failure. [ 44.951572][ T4714] name failslab, interval 1, probability 0, space 0, times 0 [ 44.953668][ T4714] CPU: 0 PID: 4714 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 44.954952][ T4714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 44.956555][ T4714] Call trace: [ 44.957074][ T4714] dump_backtrace+0x0/0x458 [ 44.957743][ T4714] show_stack+0x2c/0x3c [ 44.958345][ T4714] __dump_stack+0x30/0x40 [ 44.958997][ T4714] dump_stack_lvl+0xf4/0x15c [ 44.959709][ T4714] dump_stack+0x1c/0x5c [ 44.960359][ T4714] should_fail+0x3c8/0x520 [ 44.961044][ T4714] __should_failslab+0xbc/0x10c [ 44.961793][ T4714] should_failslab+0x10/0x28 [ 44.962571][ T4714] slab_pre_alloc_hook+0x64/0xe8 [ 44.963269][ T4714] kmem_cache_alloc+0x94/0x3d8 [ 44.964045][ T4714] btrfs_alloc_path+0x5c/0x68 [ 44.964864][ T4714] btrfs_check_dir_item_collision+0x9c/0x2ec [ 44.965915][ T4714] btrfs_rename2+0x1a54/0x323c [ 44.966675][ T4714] vfs_rename+0xb08/0xe3c [ 44.967401][ T4714] do_renameat2+0x73c/0xc90 [ 44.968048][ T4714] __arm64_sys_renameat2+0xe8/0x104 [ 44.968845][ T4714] invoke_syscall+0x98/0x28c [ 44.969538][ T4714] el0_svc_common+0x13c/0x258 [ 44.970251][ T4714] do_el0_svc+0x5c/0x140 [ 44.970894][ T4714] el0_svc+0x78/0x1d0 [ 44.971474][ T4714] el0t_64_sync_handler+0xcc/0xe4 [ 44.972240][ T4714] el0t_64_sync+0x1a0/0x1a4 [ 45.045759][ T4543] Bluetooth: hci0: command 0x041b tx timeout [ 45.165933][ T4735] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4735) [ 45.169746][ T4735] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 45.171358][ T4735] BTRFS info (device loop0): using free space tree [ 45.172374][ T4735] BTRFS info (device loop0): has skinny extents [ 45.182400][ T4735] BTRFS info (device loop0): enabling ssd optimizations [ 45.187557][ T4735] FAULT_INJECTION: forcing a failure. [ 45.187557][ T4735] name failslab, interval 1, probability 0, space 0, times 0 [ 45.189350][ T4735] CPU: 1 PID: 4735 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 45.190681][ T4735] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 45.192133][ T4735] Call trace: [ 45.192630][ T4735] dump_backtrace+0x0/0x458 [ 45.193360][ T4735] show_stack+0x2c/0x3c [ 45.193978][ T4735] __dump_stack+0x30/0x40 [ 45.194585][ T4735] dump_stack_lvl+0xf4/0x15c [ 45.195219][ T4735] dump_stack+0x1c/0x5c [ 45.195809][ T4735] should_fail+0x3c8/0x520 [ 45.196516][ T4735] __should_failslab+0xbc/0x10c [ 45.197211][ T4735] should_failslab+0x10/0x28 [ 45.197894][ T4735] slab_pre_alloc_hook+0x64/0xe8 [ 45.198662][ T4735] kmem_cache_alloc+0x94/0x3d8 [ 45.199390][ T4735] start_transaction+0x530/0x1438 [ 45.200139][ T4735] btrfs_start_transaction+0x34/0x44 [ 45.200929][ T4735] btrfs_rename2+0x1b7c/0x323c [ 45.201650][ T4735] vfs_rename+0xb08/0xe3c [ 45.202383][ T4735] do_renameat2+0x73c/0xc90 [ 45.203011][ T4735] __arm64_sys_renameat2+0xe8/0x104 [ 45.203820][ T4735] invoke_syscall+0x98/0x28c [ 45.204630][ T4735] el0_svc_common+0x13c/0x258 [ 45.205413][ T4735] do_el0_svc+0x5c/0x140 [ 45.206101][ T4735] el0_svc+0x78/0x1d0 [ 45.206707][ T4735] el0t_64_sync_handler+0xcc/0xe4 [ 45.207513][ T4735] el0t_64_sync+0x1a0/0x1a4 [ 45.424659][ T4756] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4756) [ 45.431017][ T4756] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 45.432638][ T4756] BTRFS info (device loop0): using free space tree [ 45.433773][ T4756] BTRFS info (device loop0): has skinny extents [ 45.447379][ T4756] BTRFS info (device loop0): enabling ssd optimizations [ 45.452353][ T4756] FAULT_INJECTION: forcing a failure. [ 45.452353][ T4756] name failslab, interval 1, probability 0, space 0, times 0 [ 45.454394][ T4756] CPU: 0 PID: 4756 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 45.455809][ T4756] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 45.457341][ T4756] Call trace: [ 45.457877][ T4756] dump_backtrace+0x0/0x458 [ 45.458623][ T4756] show_stack+0x2c/0x3c [ 45.459272][ T4756] __dump_stack+0x30/0x40 [ 45.459914][ T4756] dump_stack_lvl+0xf4/0x15c [ 45.460642][ T4756] dump_stack+0x1c/0x5c [ 45.461274][ T4756] should_fail+0x3c8/0x520 [ 45.461965][ T4756] __should_failslab+0xbc/0x10c [ 45.462786][ T4756] should_failslab+0x10/0x28 [ 45.463503][ T4756] slab_pre_alloc_hook+0x64/0xe8 [ 45.464278][ T4756] kmem_cache_alloc+0x94/0x3d8 [ 45.464976][ T4756] btrfs_alloc_path+0x5c/0x68 [ 45.465734][ T4756] __btrfs_unlink_inode+0x1e0/0xab8 [ 45.466511][ T4756] btrfs_rename2+0x21a4/0x323c [ 45.467269][ T4756] vfs_rename+0xb08/0xe3c [ 45.467987][ T4756] do_renameat2+0x73c/0xc90 [ 45.468695][ T4756] __arm64_sys_renameat2+0xe8/0x104 [ 45.469528][ T4756] invoke_syscall+0x98/0x28c [ 45.470299][ T4756] el0_svc_common+0x13c/0x258 [ 45.471061][ T4756] do_el0_svc+0x5c/0x140 [ 45.471747][ T4756] el0_svc+0x78/0x1d0 [ 45.472357][ T4756] el0t_64_sync_handler+0xcc/0xe4 [ 45.473178][ T4756] el0t_64_sync+0x1a0/0x1a4 [ 45.476092][ T4756] ------------[ cut here ]------------ [ 45.477040][ T4756] WARNING: CPU: 0 PID: 4756 at fs/btrfs/inode.c:9950 btrfs_rename2+0x27dc/0x323c [ 45.478414][ T4756] Modules linked in: [ 45.479019][ T4756] CPU: 0 PID: 4756 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 45.480410][ T4756] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 45.481974][ T4756] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 45.483175][ T4756] pc : btrfs_rename2+0x27dc/0x323c [ 45.483938][ T4756] lr : btrfs_rename2+0x27dc/0x323c [ 45.484710][ T4756] sp : ffff800020657880 [ 45.485393][ T4756] x29: ffff800020657980 x28: ffff0000cc81c000 x27: ffff0000cfd1f1fc [ 45.486593][ T4756] x26: ffff0000d8f3c000 x25: 00000000fffffff4 x24: ffff0000deee04c0 [ 45.487865][ T4756] x23: ffff0000deee1860 x22: 0000000000000000 x21: ffff0000dee1b528 [ 45.489157][ T4756] x20: 1fffe0001bdc36a5 x19: ffff0000dee1b4d0 x18: 0000000000000000 [ 45.490434][ T4756] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 45.491676][ T4756] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 45.492934][ T4756] x11: ff8080000830061c x10: 0000000000000000 x9 : b16e14fe47de9900 [ 45.494163][ T4756] x8 : b16e14fe47de9900 x7 : 0000000000000001 x6 : 0000000000000001 [ 45.495381][ T4756] x5 : ffff800020657198 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 45.496647][ T4756] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 45.497898][ T4756] Call trace: [ 45.498388][ T4756] btrfs_rename2+0x27dc/0x323c [ 45.499068][ T4756] vfs_rename+0xb08/0xe3c [ 45.499787][ T4756] do_renameat2+0x73c/0xc90 [ 45.500502][ T4756] __arm64_sys_renameat2+0xe8/0x104 [ 45.501316][ T4756] invoke_syscall+0x98/0x28c [ 45.502006][ T4756] el0_svc_common+0x13c/0x258 [ 45.502829][ T4756] do_el0_svc+0x5c/0x140 [ 45.503504][ T4756] el0_svc+0x78/0x1d0 [ 45.504142][ T4756] el0t_64_sync_handler+0xcc/0xe4 [ 45.504916][ T4756] el0t_64_sync+0x1a0/0x1a4 [ 45.505588][ T4756] irq event stamp: 81640 [ 45.506279][ T4756] hardirqs last enabled at (81639): [] __up_console_sem+0xb4/0xfc [ 45.507849][ T4756] hardirqs last disabled at (81640): [] el1_dbg+0x24/0x80 [ 45.509244][ T4756] softirqs last enabled at (81620): [] handle_softirqs+0xa70/0xc14 [ 45.510679][ T4756] softirqs last disabled at (81501): [] __irq_exit_rcu+0x240/0x434 [ 45.512211][ T4756] ---[ end trace ad09fd218400f2cc ]--- [ 45.513341][ T4756] BTRFS: error (device loop0) in btrfs_rename:9950: errno=-12 Out of memory [ 45.514715][ T4756] BTRFS info (device loop0): forced readonly [ 45.714972][ T4777] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4777) [ 45.718409][ T4777] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 45.720218][ T4777] BTRFS info (device loop0): using free space tree [ 45.721110][ T4777] BTRFS info (device loop0): has skinny extents [ 45.732610][ T4777] BTRFS info (device loop0): enabling ssd optimizations [ 45.738395][ T4777] FAULT_INJECTION: forcing a failure. [ 45.738395][ T4777] name failslab, interval 1, probability 0, space 0, times 0 [ 45.740782][ T4777] CPU: 0 PID: 4777 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 45.742262][ T4777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 45.743806][ T4777] Call trace: [ 45.744344][ T4777] dump_backtrace+0x0/0x458 [ 45.745106][ T4777] show_stack+0x2c/0x3c [ 45.745707][ T4777] __dump_stack+0x30/0x40 [ 45.746302][ T4777] dump_stack_lvl+0xf4/0x15c [ 45.747001][ T4777] dump_stack+0x1c/0x5c [ 45.747637][ T4777] should_fail+0x3c8/0x520 [ 45.748378][ T4777] __should_failslab+0xbc/0x10c [ 45.749092][ T4777] should_failslab+0x10/0x28 [ 45.749829][ T4777] slab_pre_alloc_hook+0x64/0xe8 [ 45.750561][ T4777] kmem_cache_alloc+0x94/0x3d8 [ 45.751340][ T4777] btrfs_alloc_path+0x5c/0x68 [ 45.751989][ T4777] __btrfs_unlink_inode+0x1e0/0xab8 [ 45.752788][ T4777] btrfs_rename2+0x21a4/0x323c [ 45.753508][ T4777] vfs_rename+0xb08/0xe3c [ 45.754199][ T4777] do_renameat2+0x73c/0xc90 [ 45.754871][ T4777] __arm64_sys_renameat2+0xe8/0x104 [ 45.755640][ T4777] invoke_syscall+0x98/0x28c [ 45.756350][ T4777] el0_svc_common+0x13c/0x258 [ 45.757072][ T4777] do_el0_svc+0x5c/0x140 [ 45.757667][ T4777] el0_svc+0x78/0x1d0 [ 45.758209][ T4777] el0t_64_sync_handler+0xcc/0xe4 [ 45.758975][ T4777] el0t_64_sync+0x1a0/0x1a4 [ 45.762275][ T4777] ------------[ cut here ]------------ [ 45.763209][ T4777] WARNING: CPU: 0 PID: 4777 at fs/btrfs/inode.c:9950 btrfs_rename2+0x27dc/0x323c [ 45.764656][ T4777] Modules linked in: [ 45.765277][ T4777] CPU: 0 PID: 4777 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 45.766757][ T4777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 45.768338][ T4777] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 45.769506][ T4777] pc : btrfs_rename2+0x27dc/0x323c [ 45.770320][ T4777] lr : btrfs_rename2+0x27dc/0x323c [ 45.771212][ T4777] sp : ffff800020657880 [ 45.771810][ T4777] x29: ffff800020657980 x28: ffff0000cc81c000 x27: ffff0000dd19c63c [ 45.773111][ T4777] x26: ffff0000d8cae000 x25: 00000000fffffff4 x24: ffff0000deee2c00 [ 45.774463][ T4777] x23: ffff0000deee3fa0 x22: 0000000000000000 x21: ffff0000dee1b738 [ 45.775693][ T4777] x20: 1fffe0001bdc36e7 x19: ffff0000dee1b6e0 x18: 0000000000000000 [ 45.777006][ T4777] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 45.778214][ T4777] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 45.779437][ T4777] x11: ff8080000830061c x10: 0000000000000000 x9 : 18c6db28eb4cae00 [ 45.780615][ T4777] x8 : 18c6db28eb4cae00 x7 : 0000000000000001 x6 : 0000000000000001 [ 45.781903][ T4777] x5 : ffff800020657198 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 45.783142][ T4777] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 45.784391][ T4777] Call trace: [ 45.784883][ T4777] btrfs_rename2+0x27dc/0x323c [ 45.785657][ T4777] vfs_rename+0xb08/0xe3c [ 45.786297][ T4777] do_renameat2+0x73c/0xc90 [ 45.786930][ T4777] __arm64_sys_renameat2+0xe8/0x104 [ 45.787745][ T4777] invoke_syscall+0x98/0x28c [ 45.788454][ T4777] el0_svc_common+0x13c/0x258 [ 45.789147][ T4777] do_el0_svc+0x5c/0x140 [ 45.789749][ T4777] el0_svc+0x78/0x1d0 [ 45.790354][ T4777] el0t_64_sync_handler+0xcc/0xe4 [ 45.791209][ T4777] el0t_64_sync+0x1a0/0x1a4 [ 45.791900][ T4777] irq event stamp: 80938 [ 45.792600][ T4777] hardirqs last enabled at (80937): [] __up_console_sem+0xb4/0xfc [ 45.794110][ T4777] hardirqs last disabled at (80938): [] el1_dbg+0x24/0x80 [ 45.795382][ T4777] softirqs last enabled at (80918): [] handle_softirqs+0xa70/0xc14 [ 45.796888][ T4777] softirqs last disabled at (80849): [] __irq_exit_rcu+0x240/0x434 [ 45.798392][ T4777] ---[ end trace ad09fd218400f2cd ]--- [ 45.800193][ T4777] BTRFS: error (device loop0) in btrfs_rename:9950: errno=-12 Out of memory [ 45.801534][ T4777] BTRFS info (device loop0): forced readonly [ 46.006415][ T4798] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4798) [ 46.009796][ T4798] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 46.011317][ T4798] BTRFS info (device loop0): using free space tree [ 46.012319][ T4798] BTRFS info (device loop0): has skinny extents [ 46.032332][ T4798] BTRFS info (device loop0): enabling ssd optimizations [ 46.038306][ T4798] FAULT_INJECTION: forcing a failure. [ 46.038306][ T4798] name failslab, interval 1, probability 0, space 0, times 0 [ 46.040412][ T4798] CPU: 1 PID: 4798 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 46.041749][ T4798] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 46.043371][ T4798] Call trace: [ 46.043847][ T4798] dump_backtrace+0x0/0x458 [ 46.044589][ T4798] show_stack+0x2c/0x3c [ 46.045304][ T4798] __dump_stack+0x30/0x40 [ 46.046031][ T4798] dump_stack_lvl+0xf4/0x15c [ 46.046801][ T4798] dump_stack+0x1c/0x5c [ 46.047476][ T4798] should_fail+0x3c8/0x520 [ 46.048211][ T4798] __should_failslab+0xbc/0x10c [ 46.049006][ T4798] should_failslab+0x10/0x28 [ 46.049710][ T4798] slab_pre_alloc_hook+0x64/0xe8 [ 46.050458][ T4798] kmem_cache_alloc+0x94/0x3d8 [ 46.051171][ T4798] btrfs_alloc_path+0x5c/0x68 [ 46.051886][ T4798] btrfs_insert_inode_ref+0xf4/0xa24 [ 46.052734][ T4798] btrfs_rename2+0x1f20/0x323c [ 46.053476][ T4798] vfs_rename+0xb08/0xe3c [ 46.054148][ T4798] do_renameat2+0x73c/0xc90 [ 46.054886][ T4798] __arm64_sys_renameat2+0xe8/0x104 [ 46.055776][ T4798] invoke_syscall+0x98/0x28c [ 46.056558][ T4798] el0_svc_common+0x13c/0x258 [ 46.057280][ T4798] do_el0_svc+0x5c/0x140 [ 46.057896][ T4798] el0_svc+0x78/0x1d0 [ 46.058689][ T4798] el0t_64_sync_handler+0xcc/0xe4 [ 46.059555][ T4798] el0t_64_sync+0x1a0/0x1a4 1970/01/01 00:00:46 executed programs: 14 [ 46.273580][ T4819] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4819) [ 46.277064][ T4819] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 46.279306][ T4819] BTRFS info (device loop0): using free space tree [ 46.280443][ T4819] BTRFS info (device loop0): has skinny extents [ 46.297299][ T4819] BTRFS info (device loop0): enabling ssd optimizations [ 46.302668][ T4819] FAULT_INJECTION: forcing a failure. [ 46.302668][ T4819] name failslab, interval 1, probability 0, space 0, times 0 [ 46.304827][ T4819] CPU: 1 PID: 4819 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 46.306267][ T4819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 46.307822][ T4819] Call trace: [ 46.308320][ T4819] dump_backtrace+0x0/0x458 [ 46.308987][ T4819] show_stack+0x2c/0x3c [ 46.309619][ T4819] __dump_stack+0x30/0x40 [ 46.310296][ T4819] dump_stack_lvl+0xf4/0x15c [ 46.310979][ T4819] dump_stack+0x1c/0x5c [ 46.311586][ T4819] should_fail+0x3c8/0x520 [ 46.312323][ T4819] __should_failslab+0xbc/0x10c [ 46.313125][ T4819] should_failslab+0x10/0x28 [ 46.313919][ T4819] slab_pre_alloc_hook+0x64/0xe8 [ 46.314651][ T4819] kmem_cache_alloc+0x94/0x3d8 [ 46.315476][ T4819] btrfs_alloc_path+0x5c/0x68 [ 46.316242][ T4819] __btrfs_unlink_inode+0x1e0/0xab8 [ 46.317037][ T4819] btrfs_rename2+0x21a4/0x323c [ 46.317808][ T4819] vfs_rename+0xb08/0xe3c [ 46.318530][ T4819] do_renameat2+0x73c/0xc90 [ 46.319199][ T4819] __arm64_sys_renameat2+0xe8/0x104 [ 46.320054][ T4819] invoke_syscall+0x98/0x28c [ 46.320819][ T4819] el0_svc_common+0x13c/0x258 [ 46.321518][ T4819] do_el0_svc+0x5c/0x140 [ 46.322148][ T4819] el0_svc+0x78/0x1d0 [ 46.322678][ T4819] el0t_64_sync_handler+0xcc/0xe4 [ 46.323538][ T4819] el0t_64_sync+0x1a0/0x1a4 [ 46.325067][ T4819] ------------[ cut here ]------------ [ 46.326979][ T4819] WARNING: CPU: 1 PID: 4819 at fs/btrfs/inode.c:9950 btrfs_rename2+0x27dc/0x323c [ 46.328234][ T4819] Modules linked in: [ 46.328887][ T4819] CPU: 1 PID: 4819 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 46.330291][ T4819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 46.331750][ T4819] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 46.332970][ T4819] pc : btrfs_rename2+0x27dc/0x323c [ 46.333686][ T4819] lr : btrfs_rename2+0x27dc/0x323c [ 46.334412][ T4819] sp : ffff800020ab7880 [ 46.335070][ T4819] x29: ffff800020ab7980 x28: ffff0000dd490000 x27: ffff0000e28cfacc [ 46.336265][ T4819] x26: ffff0000c9aea000 x25: 00000000fffffff4 x24: ffff0000e28f66e0 [ 46.337430][ T4819] x23: ffff0000e28f7a80 x22: 0000000000000000 x21: ffff0000dedd4108 [ 46.338603][ T4819] x20: 1fffe0001bdba821 x19: ffff0000dedd40b0 x18: 0000000000000000 [ 46.339765][ T4819] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 46.341108][ T4819] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 46.342359][ T4819] x11: ff8080000830061c x10: 0000000000000000 x9 : e4bc24b90c508000 [ 46.343573][ T4819] x8 : e4bc24b90c508000 x7 : 0000000000000001 x6 : 0000000000000001 [ 46.344741][ T4819] x5 : ffff800020ab7198 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 46.345887][ T4819] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 46.347193][ T4819] Call trace: [ 46.347761][ T4819] btrfs_rename2+0x27dc/0x323c [ 46.348598][ T4819] vfs_rename+0xb08/0xe3c [ 46.349278][ T4819] do_renameat2+0x73c/0xc90 [ 46.350128][ T4819] __arm64_sys_renameat2+0xe8/0x104 [ 46.350945][ T4819] invoke_syscall+0x98/0x28c [ 46.351799][ T4819] el0_svc_common+0x13c/0x258 [ 46.352589][ T4819] do_el0_svc+0x5c/0x140 [ 46.353249][ T4819] el0_svc+0x78/0x1d0 [ 46.353830][ T4819] el0t_64_sync_handler+0xcc/0xe4 [ 46.354599][ T4819] el0t_64_sync+0x1a0/0x1a4 [ 46.355343][ T4819] irq event stamp: 80410 [ 46.355963][ T4819] hardirqs last enabled at (80409): [] __up_console_sem+0xb4/0xfc [ 46.357403][ T4819] hardirqs last disabled at (80410): [] el1_dbg+0x24/0x80 [ 46.358720][ T4819] softirqs last enabled at (80398): [] handle_softirqs+0xa70/0xc14 [ 46.360207][ T4819] softirqs last disabled at (80311): [] __irq_exit_rcu+0x240/0x434 [ 46.361631][ T4819] ---[ end trace ad09fd218400f2ce ]--- [ 46.363551][ T4819] BTRFS: error (device loop0) in btrfs_rename:9950: errno=-12 Out of memory [ 46.364918][ T4819] BTRFS info (device loop0): forced readonly [ 46.559189][ T4840] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4840) [ 46.563027][ T4840] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 46.564860][ T4840] BTRFS info (device loop0): using free space tree [ 46.566260][ T4840] BTRFS info (device loop0): has skinny extents [ 46.574490][ T4840] BTRFS info (device loop0): enabling ssd optimizations [ 46.580197][ T4840] FAULT_INJECTION: forcing a failure. [ 46.580197][ T4840] name failslab, interval 1, probability 0, space 0, times 0 [ 46.582214][ T4840] CPU: 1 PID: 4840 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 46.583482][ T4840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 46.584948][ T4840] Call trace: [ 46.585434][ T4840] dump_backtrace+0x0/0x458 [ 46.586062][ T4840] show_stack+0x2c/0x3c [ 46.586739][ T4840] __dump_stack+0x30/0x40 [ 46.587367][ T4840] dump_stack_lvl+0xf4/0x15c [ 46.588065][ T4840] dump_stack+0x1c/0x5c [ 46.588640][ T4840] should_fail+0x3c8/0x520 [ 46.589291][ T4840] __should_failslab+0xbc/0x10c [ 46.590009][ T4840] should_failslab+0x10/0x28 [ 46.590690][ T4840] slab_pre_alloc_hook+0x64/0xe8 [ 46.591444][ T4840] kmem_cache_alloc+0x94/0x3d8 [ 46.592238][ T4840] btrfs_alloc_path+0x5c/0x68 [ 46.592992][ T4840] __btrfs_unlink_inode+0x1e0/0xab8 [ 46.593752][ T4840] btrfs_rename2+0x21a4/0x323c [ 46.594465][ T4840] vfs_rename+0xb08/0xe3c [ 46.595180][ T4840] do_renameat2+0x73c/0xc90 [ 46.595917][ T4840] __arm64_sys_renameat2+0xe8/0x104 [ 46.596722][ T4840] invoke_syscall+0x98/0x28c [ 46.597419][ T4840] el0_svc_common+0x13c/0x258 [ 46.598092][ T4840] do_el0_svc+0x5c/0x140 [ 46.598767][ T4840] el0_svc+0x78/0x1d0 [ 46.599349][ T4840] el0t_64_sync_handler+0xcc/0xe4 [ 46.600179][ T4840] el0t_64_sync+0x1a0/0x1a4 [ 46.601074][ T4840] ------------[ cut here ]------------ [ 46.602074][ T4840] WARNING: CPU: 1 PID: 4840 at fs/btrfs/inode.c:9950 btrfs_rename2+0x27dc/0x323c [ 46.603396][ T4840] Modules linked in: [ 46.603925][ T4840] CPU: 1 PID: 4840 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 46.605347][ T4840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 46.606946][ T4840] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 46.608125][ T4840] pc : btrfs_rename2+0x27dc/0x323c [ 46.608899][ T4840] lr : btrfs_rename2+0x27dc/0x323c [ 46.609724][ T4840] sp : ffff800020bd7880 [ 46.610427][ T4840] x29: ffff800020bd7980 x28: ffff0000d0ec0000 x27: ffff0000dd13ef0c [ 46.611692][ T4840] x26: ffff0000c9902000 x25: 00000000fffffff4 x24: ffff0000dec484c0 [ 46.613012][ T4840] x23: ffff0000dec49860 x22: 0000000000000000 x21: ffff0000dedd4318 [ 46.614296][ T4840] x20: 1fffe0001bdba863 x19: ffff0000dedd42c0 x18: 0000000000000000 [ 46.615531][ T4840] x17: 0000000000000000 x16: ffff8000082c63e0 x15: 0000000000000000 [ 46.616748][ T4840] x14: 0000000000000001 x13: 1ffff0000417ae30 x12: 0000000000000000 [ 46.618002][ T4840] x11: ff8080000830061c x10: 0000000000000000 x9 : 88c92128ecfea500 [ 46.619454][ T4840] x8 : 88c92128ecfea500 x7 : 0000000000000001 x6 : 0000000000000001 [ 46.620839][ T4840] x5 : ffff800020bd7198 x4 : ffff80001446f500 x3 : ffff800008307f44 [ 46.622101][ T4840] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 46.623358][ T4840] Call trace: [ 46.623889][ T4840] btrfs_rename2+0x27dc/0x323c [ 46.624729][ T4840] vfs_rename+0xb08/0xe3c [ 46.625477][ T4840] do_renameat2+0x73c/0xc90 [ 46.626209][ T4840] __arm64_sys_renameat2+0xe8/0x104 [ 46.627039][ T4840] invoke_syscall+0x98/0x28c [ 46.627756][ T4840] el0_svc_common+0x13c/0x258 [ 46.628504][ T4840] do_el0_svc+0x5c/0x140 [ 46.629226][ T4840] el0_svc+0x78/0x1d0 [ 46.629842][ T4840] el0t_64_sync_handler+0xcc/0xe4 [ 46.630568][ T4840] el0t_64_sync+0x1a0/0x1a4 [ 46.631294][ T4840] irq event stamp: 80232 [ 46.631991][ T4840] hardirqs last enabled at (80231): [] __up_console_sem+0xb4/0xfc [ 46.633511][ T4840] hardirqs last disabled at (80232): [] el1_dbg+0x24/0x80 [ 46.634962][ T4840] softirqs last enabled at (80212): [] handle_softirqs+0xa70/0xc14 [ 46.636415][ T4840] softirqs last disabled at (80199): [] __irq_exit_rcu+0x240/0x434 [ 46.637850][ T4840] ---[ end trace ad09fd218400f2cf ]--- [ 46.638915][ T4840] BTRFS: error (device loop0) in btrfs_rename:9950: errno=-12 Out of memory [ 46.640314][ T4840] BTRFS info (device loop0): forced readonly [ 46.854072][ T4861] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4861) [ 46.858666][ T4861] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 46.860359][ T4861] BTRFS info (device loop0): using free space tree [ 46.861510][ T4861] BTRFS info (device loop0): has skinny extents [ 46.876822][ T4861] BTRFS info (device loop0): enabling ssd optimizations [ 46.882144][ T4861] FAULT_INJECTION: forcing a failure. [ 46.882144][ T4861] name failslab, interval 1, probability 0, space 0, times 0 [ 46.884225][ T4861] CPU: 0 PID: 4861 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 46.885662][ T4861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 46.887263][ T4861] Call trace: [ 46.887828][ T4861] dump_backtrace+0x0/0x458 [ 46.888677][ T4861] show_stack+0x2c/0x3c [ 46.889343][ T4861] __dump_stack+0x30/0x40 [ 46.890035][ T4861] dump_stack_lvl+0xf4/0x15c [ 46.890766][ T4861] dump_stack+0x1c/0x5c [ 46.891372][ T4861] should_fail+0x3c8/0x520 [ 46.892095][ T4861] __should_failslab+0xbc/0x10c [ 46.892818][ T4861] should_failslab+0x10/0x28 [ 46.893514][ T4861] slab_pre_alloc_hook+0x64/0xe8 [ 46.894242][ T4861] kmem_cache_alloc+0x94/0x3d8 [ 46.894987][ T4861] btrfs_alloc_path+0x5c/0x68 [ 46.895714][ T4861] btrfs_insert_inode_ref+0xf4/0xa24 [ 46.896529][ T4861] btrfs_rename2+0x1f20/0x323c [ 46.897250][ T4861] vfs_rename+0xb08/0xe3c [ 46.897949][ T4861] do_renameat2+0x73c/0xc90 [ 46.898714][ T4861] __arm64_sys_renameat2+0xe8/0x104 [ 46.899524][ T4861] invoke_syscall+0x98/0x28c [ 46.900252][ T4861] el0_svc_common+0x13c/0x258 [ 46.900867][ T4861] do_el0_svc+0x5c/0x140 [ 46.901507][ T4861] el0_svc+0x78/0x1d0 [ 46.902175][ T4861] el0t_64_sync_handler+0xcc/0xe4 [ 46.902964][ T4861] el0t_64_sync+0x1a0/0x1a4 [ 47.113747][ T4882] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4882) [ 47.118713][ T4882] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 47.120189][ T4882] BTRFS info (device loop0): using free space tree [ 47.121230][ T4882] BTRFS info (device loop0): has skinny extents [ 47.125522][ T25] Bluetooth: hci0: command 0x040f tx timeout [ 47.132334][ T4882] BTRFS info (device loop0): enabling ssd optimizations [ 47.137393][ T4882] FAULT_INJECTION: forcing a failure. [ 47.137393][ T4882] name failslab, interval 1, probability 0, space 0, times 0 [ 47.139526][ T4882] CPU: 1 PID: 4882 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 47.140934][ T4882] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 47.142611][ T4882] Call trace: [ 47.143166][ T4882] dump_backtrace+0x0/0x458 [ 47.143843][ T4882] show_stack+0x2c/0x3c [ 47.144493][ T4882] __dump_stack+0x30/0x40 [ 47.145097][ T4882] dump_stack_lvl+0xf4/0x15c [ 47.145767][ T4882] dump_stack+0x1c/0x5c [ 47.146452][ T4882] should_fail+0x3c8/0x520 [ 47.147138][ T4882] __should_failslab+0xbc/0x10c [ 47.147903][ T4882] should_failslab+0x10/0x28 [ 47.148565][ T4882] slab_pre_alloc_hook+0x64/0xe8 [ 47.149356][ T4882] kmem_cache_alloc+0x94/0x3d8 [ 47.150058][ T4882] btrfs_alloc_path+0x5c/0x68 [ 47.150817][ T4882] __btrfs_unlink_inode+0x1e0/0xab8 [ 47.151584][ T4882] btrfs_rename2+0x21a4/0x323c [ 47.152308][ T4882] vfs_rename+0xb08/0xe3c [ 47.152932][ T4882] do_renameat2+0x73c/0xc90 [ 47.153606][ T4882] __arm64_sys_renameat2+0xe8/0x104 [ 47.154369][ T4882] invoke_syscall+0x98/0x28c [ 47.155104][ T4882] el0_svc_common+0x13c/0x258 [ 47.155818][ T4882] do_el0_svc+0x5c/0x140 [ 47.156466][ T4882] el0_svc+0x78/0x1d0 [ 47.157096][ T4882] el0t_64_sync_handler+0xcc/0xe4 [ 47.157905][ T4882] el0t_64_sync+0x1a0/0x1a4 [ 47.160483][ T4882] ------------[ cut here ]------------ [ 47.161443][ T4882] WARNING: CPU: 1 PID: 4882 at fs/btrfs/inode.c:9950 btrfs_rename2+0x27dc/0x323c [ 47.162852][ T4882] Modules linked in: [ 47.163474][ T4882] CPU: 1 PID: 4882 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 47.164842][ T4882] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 47.166402][ T4882] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.167645][ T4882] pc : btrfs_rename2+0x27dc/0x323c [ 47.168438][ T4882] lr : btrfs_rename2+0x27dc/0x323c [ 47.169277][ T4882] sp : ffff800021217880 [ 47.169939][ T4882] x29: ffff800021217980 x28: ffff0000cf6e0000 x27: ffff0000dd12e7b4 [ 47.171158][ T4882] x26: ffff0000d661e000 x25: 00000000fffffff4 x24: ffff0000dec4ac00 [ 47.172342][ T4882] x23: ffff0000dec4bfa0 x22: 0000000000000000 x21: ffff0000dedd4528 [ 47.173609][ T4882] x20: 1fffe0001bdba8a5 x19: ffff0000dedd44d0 x18: 0000000000000000 [ 47.174808][ T4882] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 47.175970][ T4882] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 47.177233][ T4882] x11: ff8080000830061c x10: 0000000000000000 x9 : 0bc2163c36adc400 [ 47.178467][ T4882] x8 : 0bc2163c36adc400 x7 : 0000000000000001 x6 : 0000000000000001 [ 47.179611][ T4882] x5 : ffff800021217198 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 47.180696][ T4882] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 47.181790][ T4882] Call trace: [ 47.182295][ T4882] btrfs_rename2+0x27dc/0x323c [ 47.182972][ T4882] vfs_rename+0xb08/0xe3c [ 47.183617][ T4882] do_renameat2+0x73c/0xc90 [ 47.184310][ T4882] __arm64_sys_renameat2+0xe8/0x104 [ 47.185022][ T4882] invoke_syscall+0x98/0x28c [ 47.185727][ T4882] el0_svc_common+0x13c/0x258 [ 47.186473][ T4882] do_el0_svc+0x5c/0x140 [ 47.187070][ T4882] el0_svc+0x78/0x1d0 [ 47.187751][ T4882] el0t_64_sync_handler+0xcc/0xe4 [ 47.188457][ T4882] el0t_64_sync+0x1a0/0x1a4 [ 47.189162][ T4882] irq event stamp: 79802 [ 47.189793][ T4882] hardirqs last enabled at (79801): [] __up_console_sem+0xb4/0xfc [ 47.191228][ T4882] hardirqs last disabled at (79802): [] el1_dbg+0x24/0x80 [ 47.192488][ T4882] softirqs last enabled at (79782): [] handle_softirqs+0xa70/0xc14 [ 47.193919][ T4882] softirqs last disabled at (79623): [] __irq_exit_rcu+0x240/0x434 [ 47.195478][ T4882] ---[ end trace ad09fd218400f2d0 ]--- [ 47.198389][ T4882] BTRFS: error (device loop0) in btrfs_rename:9950: errno=-12 Out of memory [ 47.199768][ T4882] BTRFS info (device loop0): forced readonly [ 47.385832][ T4903] set_capacity_and_notify: 8 callbacks suppressed [ 47.385840][ T4903] loop0: detected capacity change from 0 to 32768 [ 47.389390][ T4903] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4903) [ 47.393158][ T4903] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 47.394671][ T4903] BTRFS info (device loop0): using free space tree [ 47.395847][ T4903] BTRFS info (device loop0): has skinny extents [ 47.406009][ T4903] BTRFS info (device loop0): enabling ssd optimizations [ 47.411262][ T4903] FAULT_INJECTION: forcing a failure. [ 47.411262][ T4903] name failslab, interval 1, probability 0, space 0, times 0 [ 47.413340][ T4903] CPU: 0 PID: 4903 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 47.414702][ T4903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 47.416412][ T4903] Call trace: [ 47.417015][ T4903] dump_backtrace+0x0/0x458 [ 47.417834][ T4903] show_stack+0x2c/0x3c [ 47.418524][ T4903] __dump_stack+0x30/0x40 [ 47.419311][ T4903] dump_stack_lvl+0xf4/0x15c [ 47.419978][ T4903] dump_stack+0x1c/0x5c [ 47.420641][ T4903] should_fail+0x3c8/0x520 [ 47.421358][ T4903] __should_failslab+0xbc/0x10c [ 47.422095][ T4903] should_failslab+0x10/0x28 [ 47.422773][ T4903] slab_pre_alloc_hook+0x64/0xe8 [ 47.423579][ T4903] kmem_cache_alloc+0x94/0x3d8 [ 47.424328][ T4903] btrfs_alloc_path+0x5c/0x68 [ 47.425006][ T4903] btrfs_insert_inode_ref+0xf4/0xa24 [ 47.425852][ T4903] btrfs_rename2+0x1f20/0x323c [ 47.426552][ T4903] vfs_rename+0xb08/0xe3c [ 47.427254][ T4903] do_renameat2+0x73c/0xc90 [ 47.427933][ T4903] __arm64_sys_renameat2+0xe8/0x104 [ 47.428711][ T4903] invoke_syscall+0x98/0x28c [ 47.429462][ T4903] el0_svc_common+0x13c/0x258 [ 47.430163][ T4903] do_el0_svc+0x5c/0x140 [ 47.430837][ T4903] el0_svc+0x78/0x1d0 [ 47.431527][ T4903] el0t_64_sync_handler+0xcc/0xe4 [ 47.432326][ T4903] el0t_64_sync+0x1a0/0x1a4 [ 47.622460][ T4924] loop0: detected capacity change from 0 to 32768 [ 47.625034][ T4924] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4924) [ 47.629854][ T4924] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 47.631433][ T4924] BTRFS info (device loop0): using free space tree [ 47.632406][ T4924] BTRFS info (device loop0): has skinny extents [ 47.642933][ T4924] BTRFS info (device loop0): enabling ssd optimizations [ 47.648421][ T4924] FAULT_INJECTION: forcing a failure. [ 47.648421][ T4924] name failslab, interval 1, probability 0, space 0, times 0 [ 47.650429][ T4924] CPU: 0 PID: 4924 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 47.651681][ T4924] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 47.653151][ T4924] Call trace: [ 47.653590][ T4924] dump_backtrace+0x0/0x458 [ 47.654267][ T4924] show_stack+0x2c/0x3c [ 47.654823][ T4924] __dump_stack+0x30/0x40 [ 47.655554][ T4924] dump_stack_lvl+0xf4/0x15c [ 47.656218][ T4924] dump_stack+0x1c/0x5c [ 47.656817][ T4924] should_fail+0x3c8/0x520 [ 47.657454][ T4924] __should_failslab+0xbc/0x10c [ 47.658156][ T4924] should_failslab+0x10/0x28 [ 47.658821][ T4924] slab_pre_alloc_hook+0x64/0xe8 [ 47.659608][ T4924] kmem_cache_alloc+0x94/0x3d8 [ 47.660329][ T4924] btrfs_alloc_path+0x5c/0x68 [ 47.661017][ T4924] btrfs_insert_inode_ref+0xf4/0xa24 [ 47.661831][ T4924] btrfs_rename2+0x1f20/0x323c [ 47.662564][ T4924] vfs_rename+0xb08/0xe3c [ 47.663185][ T4924] do_renameat2+0x73c/0xc90 [ 47.663857][ T4924] __arm64_sys_renameat2+0xe8/0x104 [ 47.664707][ T4924] invoke_syscall+0x98/0x28c [ 47.665397][ T4924] el0_svc_common+0x13c/0x258 [ 47.666081][ T4924] do_el0_svc+0x5c/0x140 [ 47.666730][ T4924] el0_svc+0x78/0x1d0 [ 47.667308][ T4924] el0t_64_sync_handler+0xcc/0xe4 [ 47.667996][ T4924] el0t_64_sync+0x1a0/0x1a4 [ 47.872345][ T4945] loop0: detected capacity change from 0 to 32768 [ 47.874915][ T4945] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4945) [ 47.878794][ T4945] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 47.880314][ T4945] BTRFS info (device loop0): using free space tree [ 47.881252][ T4945] BTRFS info (device loop0): has skinny extents [ 47.891047][ T4945] BTRFS info (device loop0): enabling ssd optimizations [ 47.898276][ T4945] FAULT_INJECTION: forcing a failure. [ 47.898276][ T4945] name failslab, interval 1, probability 0, space 0, times 0 [ 47.900327][ T4945] CPU: 1 PID: 4945 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 47.901613][ T4945] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 47.903110][ T4945] Call trace: [ 47.903561][ T4945] dump_backtrace+0x0/0x458 [ 47.904258][ T4945] show_stack+0x2c/0x3c [ 47.904921][ T4945] __dump_stack+0x30/0x40 [ 47.905567][ T4945] dump_stack_lvl+0xf4/0x15c [ 47.906288][ T4945] dump_stack+0x1c/0x5c [ 47.906961][ T4945] should_fail+0x3c8/0x520 [ 47.907637][ T4945] __should_failslab+0xbc/0x10c [ 47.908367][ T4945] should_failslab+0x10/0x28 [ 47.909041][ T4945] slab_pre_alloc_hook+0x64/0xe8 [ 47.909794][ T4945] kmem_cache_alloc+0x94/0x3d8 [ 47.910592][ T4945] btrfs_alloc_path+0x5c/0x68 [ 47.911282][ T4945] btrfs_insert_inode_ref+0xf4/0xa24 [ 47.912031][ T4945] btrfs_rename2+0x1f20/0x323c [ 47.912718][ T4945] vfs_rename+0xb08/0xe3c [ 47.913491][ T4945] do_renameat2+0x73c/0xc90 [ 47.914208][ T4945] __arm64_sys_renameat2+0xe8/0x104 [ 47.915051][ T4945] invoke_syscall+0x98/0x28c [ 47.915737][ T4945] el0_svc_common+0x13c/0x258 [ 47.916434][ T4945] do_el0_svc+0x5c/0x140 [ 47.917116][ T4945] el0_svc+0x78/0x1d0 [ 47.917729][ T4945] el0t_64_sync_handler+0xcc/0xe4 [ 47.918516][ T4945] el0t_64_sync+0x1a0/0x1a4 [ 48.103931][ T4966] loop0: detected capacity change from 0 to 32768 [ 48.108398][ T4966] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4966) [ 48.111973][ T4966] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 48.113689][ T4966] BTRFS info (device loop0): using free space tree [ 48.114802][ T4966] BTRFS info (device loop0): has skinny extents [ 48.124936][ T4966] BTRFS info (device loop0): enabling ssd optimizations [ 48.130548][ T4966] FAULT_INJECTION: forcing a failure. [ 48.130548][ T4966] name failslab, interval 1, probability 0, space 0, times 0 [ 48.132714][ T4966] CPU: 1 PID: 4966 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.134053][ T4966] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 48.135568][ T4966] Call trace: [ 48.136144][ T4966] dump_backtrace+0x0/0x458 [ 48.136810][ T4966] show_stack+0x2c/0x3c [ 48.137420][ T4966] __dump_stack+0x30/0x40 [ 48.138060][ T4966] dump_stack_lvl+0xf4/0x15c [ 48.138804][ T4966] dump_stack+0x1c/0x5c [ 48.139467][ T4966] should_fail+0x3c8/0x520 [ 48.140144][ T4966] __should_failslab+0xbc/0x10c [ 48.140873][ T4966] should_failslab+0x10/0x28 [ 48.141573][ T4966] slab_pre_alloc_hook+0x64/0xe8 [ 48.142384][ T4966] kmem_cache_alloc+0x94/0x3d8 [ 48.143146][ T4966] start_transaction+0x530/0x1438 [ 48.143912][ T4966] btrfs_start_transaction+0x34/0x44 [ 48.144632][ T4966] btrfs_rename2+0x1b7c/0x323c [ 48.145391][ T4966] vfs_rename+0xb08/0xe3c [ 48.146149][ T4966] do_renameat2+0x73c/0xc90 [ 48.147000][ T4966] __arm64_sys_renameat2+0xe8/0x104 [ 48.147737][ T4966] invoke_syscall+0x98/0x28c [ 48.148433][ T4966] el0_svc_common+0x13c/0x258 [ 48.149119][ T4966] do_el0_svc+0x5c/0x140 [ 48.149744][ T4966] el0_svc+0x78/0x1d0 [ 48.150466][ T4966] el0t_64_sync_handler+0xcc/0xe4 [ 48.151244][ T4966] el0t_64_sync+0x1a0/0x1a4 [ 48.360859][ T4987] loop0: detected capacity change from 0 to 32768 [ 48.363237][ T4987] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4987) [ 48.370792][ T4987] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 48.372267][ T4987] BTRFS info (device loop0): using free space tree [ 48.373331][ T4987] BTRFS info (device loop0): has skinny extents [ 48.381799][ T4987] BTRFS info (device loop0): enabling ssd optimizations [ 48.389040][ T4987] FAULT_INJECTION: forcing a failure. [ 48.389040][ T4987] name failslab, interval 1, probability 0, space 0, times 0 [ 48.390918][ T4987] CPU: 0 PID: 4987 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.392160][ T4987] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 48.393567][ T4987] Call trace: [ 48.394083][ T4987] dump_backtrace+0x0/0x458 [ 48.394677][ T4987] show_stack+0x2c/0x3c [ 48.395241][ T4987] __dump_stack+0x30/0x40 [ 48.396012][ T4987] dump_stack_lvl+0xf4/0x15c [ 48.396702][ T4987] dump_stack+0x1c/0x5c [ 48.397309][ T4987] should_fail+0x3c8/0x520 [ 48.397933][ T4987] __should_failslab+0xbc/0x10c [ 48.398625][ T4987] should_failslab+0x10/0x28 [ 48.399307][ T4987] slab_pre_alloc_hook+0x64/0xe8 [ 48.400020][ T4987] kmem_cache_alloc+0x94/0x3d8 [ 48.400695][ T4987] btrfs_alloc_path+0x5c/0x68 [ 48.401424][ T4987] btrfs_insert_inode_ref+0xf4/0xa24 [ 48.402161][ T4987] btrfs_rename2+0x1f20/0x323c [ 48.402848][ T4987] vfs_rename+0xb08/0xe3c [ 48.403473][ T4987] do_renameat2+0x73c/0xc90 [ 48.404152][ T4987] __arm64_sys_renameat2+0xe8/0x104 [ 48.404943][ T4987] invoke_syscall+0x98/0x28c [ 48.405642][ T4987] el0_svc_common+0x13c/0x258 [ 48.406354][ T4987] do_el0_svc+0x5c/0x140 [ 48.407063][ T4987] el0_svc+0x78/0x1d0 [ 48.407646][ T4987] el0t_64_sync_handler+0xcc/0xe4 [ 48.408364][ T4987] el0t_64_sync+0x1a0/0x1a4 [ 48.589231][ T5008] loop0: detected capacity change from 0 to 32768 [ 48.593475][ T5008] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5008) [ 48.597895][ T5008] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 48.599549][ T5008] BTRFS info (device loop0): using free space tree [ 48.600524][ T5008] BTRFS info (device loop0): has skinny extents [ 48.609236][ T5008] BTRFS info (device loop0): enabling ssd optimizations [ 48.614681][ T5008] FAULT_INJECTION: forcing a failure. [ 48.614681][ T5008] name failslab, interval 1, probability 0, space 0, times 0 [ 48.617526][ T5008] CPU: 0 PID: 5008 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.618962][ T5008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 48.620479][ T5008] Call trace: [ 48.621038][ T5008] dump_backtrace+0x0/0x458 [ 48.621752][ T5008] show_stack+0x2c/0x3c [ 48.622452][ T5008] __dump_stack+0x30/0x40 [ 48.623221][ T5008] dump_stack_lvl+0xf4/0x15c [ 48.623886][ T5008] dump_stack+0x1c/0x5c [ 48.624456][ T5008] should_fail+0x3c8/0x520 [ 48.625109][ T5008] __should_failslab+0xbc/0x10c [ 48.625854][ T5008] should_failslab+0x10/0x28 [ 48.626614][ T5008] slab_pre_alloc_hook+0x64/0xe8 [ 48.627344][ T5008] kmem_cache_alloc+0x94/0x3d8 [ 48.628108][ T5008] btrfs_alloc_path+0x5c/0x68 [ 48.628804][ T5008] btrfs_insert_inode_ref+0xf4/0xa24 [ 48.629613][ T5008] btrfs_rename2+0x1f20/0x323c [ 48.630342][ T5008] vfs_rename+0xb08/0xe3c [ 48.631014][ T5008] do_renameat2+0x73c/0xc90 [ 48.631653][ T5008] __arm64_sys_renameat2+0xe8/0x104 [ 48.632468][ T5008] invoke_syscall+0x98/0x28c [ 48.633212][ T5008] el0_svc_common+0x13c/0x258 [ 48.633920][ T5008] do_el0_svc+0x5c/0x140 [ 48.634628][ T5008] el0_svc+0x78/0x1d0 [ 48.636120][ T5008] el0t_64_sync_handler+0xcc/0xe4 [ 48.636831][ T5008] el0t_64_sync+0x1a0/0x1a4 [ 48.833174][ T5029] loop0: detected capacity change from 0 to 32768 [ 48.836527][ T5029] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5029) [ 48.839663][ T5029] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 48.842199][ T5029] BTRFS info (device loop0): using free space tree [ 48.843311][ T5029] BTRFS info (device loop0): has skinny extents [ 48.854803][ T5029] BTRFS info (device loop0): enabling ssd optimizations [ 48.860767][ T5029] FAULT_INJECTION: forcing a failure. [ 48.860767][ T5029] name failslab, interval 1, probability 0, space 0, times 0 [ 48.862866][ T5029] CPU: 1 PID: 5029 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.864248][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 48.865941][ T5029] Call trace: [ 48.866511][ T5029] dump_backtrace+0x0/0x458 [ 48.867217][ T5029] show_stack+0x2c/0x3c [ 48.867895][ T5029] __dump_stack+0x30/0x40 [ 48.868573][ T5029] dump_stack_lvl+0xf4/0x15c [ 48.869260][ T5029] dump_stack+0x1c/0x5c [ 48.869933][ T5029] should_fail+0x3c8/0x520 [ 48.870697][ T5029] __should_failslab+0xbc/0x10c [ 48.871435][ T5029] should_failslab+0x10/0x28 [ 48.872118][ T5029] slab_pre_alloc_hook+0x64/0xe8 [ 48.872882][ T5029] kmem_cache_alloc+0x94/0x3d8 [ 48.873625][ T5029] btrfs_alloc_path+0x5c/0x68 [ 48.874342][ T5029] __btrfs_unlink_inode+0x1e0/0xab8 [ 48.875207][ T5029] btrfs_rename2+0x21a4/0x323c [ 48.875937][ T5029] vfs_rename+0xb08/0xe3c [ 48.876595][ T5029] do_renameat2+0x73c/0xc90 [ 48.877338][ T5029] __arm64_sys_renameat2+0xe8/0x104 [ 48.878172][ T5029] invoke_syscall+0x98/0x28c [ 48.878851][ T5029] el0_svc_common+0x13c/0x258 [ 48.879622][ T5029] do_el0_svc+0x5c/0x140 [ 48.880302][ T5029] el0_svc+0x78/0x1d0 [ 48.880930][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 48.881681][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 48.882667][ T5029] ------------[ cut here ]------------ [ 48.883570][ T5029] WARNING: CPU: 1 PID: 5029 at fs/btrfs/inode.c:9950 btrfs_rename2+0x27dc/0x323c [ 48.884933][ T5029] Modules linked in: [ 48.885502][ T5029] CPU: 1 PID: 5029 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.886874][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 48.888402][ T5029] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.889672][ T5029] pc : btrfs_rename2+0x27dc/0x323c [ 48.890496][ T5029] lr : btrfs_rename2+0x27dc/0x323c [ 48.891266][ T5029] sp : ffff800021897880 [ 48.891880][ T5029] x29: ffff800021897980 x28: ffff0000c85f8000 x27: ffff0000def73664 [ 48.893101][ T5029] x26: ffff0000d0220000 x25: 00000000fffffff4 x24: ffff0000deeaac00 [ 48.894280][ T5029] x23: ffff0000deeabfa0 x22: 0000000000000000 x21: ffff0000dedd4ec8 [ 48.895432][ T5029] x20: 1fffe0001bdba9d9 x19: ffff0000dedd4e70 x18: 0000000000000000 [ 48.896641][ T5029] x17: 0000000000000000 x16: ffff8000082c63e0 x15: 0000000000000000 [ 48.897893][ T5029] x14: 0000000000000001 x13: 1ffff00004312e30 x12: 0000000000000000 [ 48.899163][ T5029] x11: ff8080000830061c x10: 0000000000000000 x9 : b47521c8a80a3900 [ 48.900437][ T5029] x8 : b47521c8a80a3900 x7 : 0000000000000001 x6 : 0000000000000001 [ 48.901588][ T5029] x5 : ffff800021897198 x4 : ffff80001446f500 x3 : ffff800008307f44 [ 48.902751][ T5029] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 48.903849][ T5029] Call trace: [ 48.904310][ T5029] btrfs_rename2+0x27dc/0x323c [ 48.905112][ T5029] vfs_rename+0xb08/0xe3c [ 48.905734][ T5029] do_renameat2+0x73c/0xc90 [ 48.906454][ T5029] __arm64_sys_renameat2+0xe8/0x104 [ 48.907210][ T5029] invoke_syscall+0x98/0x28c [ 48.907945][ T5029] el0_svc_common+0x13c/0x258 [ 48.908630][ T5029] do_el0_svc+0x5c/0x140 [ 48.909270][ T5029] el0_svc+0x78/0x1d0 [ 48.909913][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 48.910636][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 48.911330][ T5029] irq event stamp: 81408 [ 48.912029][ T5029] hardirqs last enabled at (81407): [] __up_console_sem+0xb4/0xfc [ 48.913518][ T5029] hardirqs last disabled at (81408): [] el1_dbg+0x24/0x80 [ 48.914908][ T5029] softirqs last enabled at (81388): [] handle_softirqs+0xa70/0xc14 [ 48.916413][ T5029] softirqs last disabled at (81315): [] __irq_exit_rcu+0x240/0x434 [ 48.917904][ T5029] ---[ end trace ad09fd218400f2d1 ]--- [ 48.918987][ T5029] BTRFS: error (device loop0) in btrfs_rename:9950: errno=-12 Out of memory [ 48.920556][ T5029] BTRFS info (device loop0): forced readonly [ 49.089528][ T5050] loop0: detected capacity change from 0 to 32768 [ 49.091983][ T5050] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5050) [ 49.095611][ T5050] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 49.097394][ T5050] BTRFS info (device loop0): using free space tree [ 49.098378][ T5050] BTRFS info (device loop0): has skinny extents [ 49.107031][ T5050] BTRFS info (device loop0): enabling ssd optimizations [ 49.116353][ T5050] FAULT_INJECTION: forcing a failure. [ 49.116353][ T5050] name failslab, interval 1, probability 0, space 0, times 0 [ 49.118450][ T5050] CPU: 1 PID: 5050 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.119788][ T5050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 49.121237][ T5050] Call trace: [ 49.121689][ T5050] dump_backtrace+0x0/0x458 [ 49.122336][ T5050] show_stack+0x2c/0x3c [ 49.122915][ T5050] __dump_stack+0x30/0x40 [ 49.123560][ T5050] dump_stack_lvl+0xf4/0x15c [ 49.124270][ T5050] dump_stack+0x1c/0x5c [ 49.124927][ T5050] should_fail+0x3c8/0x520 [ 49.125573][ T5050] __should_failslab+0xbc/0x10c [ 49.126344][ T5050] should_failslab+0x10/0x28 [ 49.127051][ T5050] slab_pre_alloc_hook+0x64/0xe8 [ 49.127834][ T5050] kmem_cache_alloc+0x94/0x3d8 [ 49.128570][ T5050] btrfs_alloc_path+0x5c/0x68 [ 49.129329][ T5050] __btrfs_unlink_inode+0x1e0/0xab8 [ 49.130114][ T5050] btrfs_rename2+0x21a4/0x323c [ 49.130953][ T5050] vfs_rename+0xb08/0xe3c [ 49.131636][ T5050] do_renameat2+0x73c/0xc90 [ 49.132298][ T5050] __arm64_sys_renameat2+0xe8/0x104 [ 49.133197][ T5050] invoke_syscall+0x98/0x28c [ 49.133944][ T5050] el0_svc_common+0x13c/0x258 [ 49.134662][ T5050] do_el0_svc+0x5c/0x140 [ 49.135302][ T5050] el0_svc+0x78/0x1d0 [ 49.135912][ T5050] el0t_64_sync_handler+0xcc/0xe4 [ 49.136702][ T5050] el0t_64_sync+0x1a0/0x1a4 [ 49.139226][ T5050] ------------[ cut here ]------------ [ 49.140086][ T5050] WARNING: CPU: 1 PID: 5050 at fs/btrfs/inode.c:9950 btrfs_rename2+0x27dc/0x323c [ 49.141429][ T5050] Modules linked in: [ 49.142020][ T5050] CPU: 1 PID: 5050 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.143291][ T5050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 49.144693][ T5050] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.145877][ T5050] pc : btrfs_rename2+0x27dc/0x323c [ 49.146684][ T5050] lr : btrfs_rename2+0x27dc/0x323c [ 49.147642][ T5050] sp : ffff8000216c7880 [ 49.148358][ T5050] x29: ffff8000216c7980 x28: ffff0000c85f8000 x27: ffff0000dd121954 [ 49.149617][ T5050] x26: ffff0000e5568000 x25: 00000000fffffff4 x24: ffff0000e29aac00 [ 49.150930][ T5050] x23: ffff0000deeac970 x22: 0000000000000000 x21: ffff0000ded8a688 [ 49.152087][ T5050] x20: 1fffe0001bdb14d1 x19: ffff0000ded8a630 x18: 0000000000000000 [ 49.153336][ T5050] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 49.154554][ T5050] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 49.155697][ T5050] x11: ff8080000830061c x10: 0000000000000000 x9 : 3d77602d6881c900 [ 49.156878][ T5050] x8 : 3d77602d6881c900 x7 : 0000000000000001 x6 : 0000000000000001 [ 49.158067][ T5050] x5 : ffff8000216c7198 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 49.159390][ T5050] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 49.160651][ T5050] Call trace: [ 49.161135][ T5050] btrfs_rename2+0x27dc/0x323c [ 49.161915][ T5050] vfs_rename+0xb08/0xe3c [ 49.162588][ T5050] do_renameat2+0x73c/0xc90 [ 49.163335][ T5050] __arm64_sys_renameat2+0xe8/0x104 [ 49.164189][ T5050] invoke_syscall+0x98/0x28c [ 49.164895][ T5050] el0_svc_common+0x13c/0x258 [ 49.165594][ T5050] do_el0_svc+0x5c/0x140 [ 49.166275][ T5050] el0_svc+0x78/0x1d0 [ 49.166888][ T5050] el0t_64_sync_handler+0xcc/0xe4 [ 49.167660][ T5050] el0t_64_sync+0x1a0/0x1a4 [ 49.168399][ T5050] irq event stamp: 79944 [ 49.169067][ T5050] hardirqs last enabled at (79943): [] __up_console_sem+0xb4/0xfc [ 49.170480][ T5050] hardirqs last disabled at (79944): [] el1_dbg+0x24/0x80 [ 49.171946][ T5050] softirqs last enabled at (79924): [] handle_softirqs+0xa70/0xc14 [ 49.173566][ T5050] softirqs last disabled at (79811): [] __irq_exit_rcu+0x240/0x434 [ 49.175019][ T5050] ---[ end trace ad09fd218400f2d2 ]--- [ 49.176864][ T5050] BTRFS: error (device loop0) in btrfs_rename:9950: errno=-12 Out of memory [ 49.178321][ T5050] BTRFS info (device loop0): forced readonly [ 49.205367][ T25] Bluetooth: hci0: command 0x0419 tx timeout [ 49.352775][ T5071] loop0: detected capacity change from 0 to 32768 [ 49.356599][ T5071] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5071) [ 49.361620][ T5071] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 49.363173][ T5071] BTRFS info (device loop0): using free space tree [ 49.364126][ T5071] BTRFS info (device loop0): has skinny extents [ 49.379999][ T5071] BTRFS info (device loop0): enabling ssd optimizations [ 49.385061][ T5071] FAULT_INJECTION: forcing a failure. [ 49.385061][ T5071] name failslab, interval 1, probability 0, space 0, times 0 [ 49.387611][ T5071] CPU: 1 PID: 5071 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.389070][ T5071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 49.390588][ T5071] Call trace: [ 49.391159][ T5071] dump_backtrace+0x0/0x458 [ 49.391834][ T5071] show_stack+0x2c/0x3c [ 49.392566][ T5071] __dump_stack+0x30/0x40 [ 49.393232][ T5071] dump_stack_lvl+0xf4/0x15c [ 49.393985][ T5071] dump_stack+0x1c/0x5c [ 49.394691][ T5071] should_fail+0x3c8/0x520 [ 49.395409][ T5071] __should_failslab+0xbc/0x10c [ 49.396111][ T5071] should_failslab+0x10/0x28 [ 49.396843][ T5071] slab_pre_alloc_hook+0x64/0xe8 [ 49.397593][ T5071] kmem_cache_alloc+0x94/0x3d8 [ 49.398349][ T5071] btrfs_alloc_path+0x5c/0x68 [ 49.399074][ T5071] __btrfs_unlink_inode+0x1e0/0xab8 [ 49.399881][ T5071] btrfs_rename2+0x21a4/0x323c [ 49.400650][ T5071] vfs_rename+0xb08/0xe3c [ 49.401376][ T5071] do_renameat2+0x73c/0xc90 [ 49.402106][ T5071] __arm64_sys_renameat2+0xe8/0x104 [ 49.402864][ T5071] invoke_syscall+0x98/0x28c [ 49.403550][ T5071] el0_svc_common+0x13c/0x258 [ 49.404323][ T5071] do_el0_svc+0x5c/0x140 [ 49.405012][ T5071] el0_svc+0x78/0x1d0 [ 49.405755][ T5071] el0t_64_sync_handler+0xcc/0xe4 [ 49.406588][ T5071] el0t_64_sync+0x1a0/0x1a4 [ 49.408737][ T5071] ------------[ cut here ]------------ [ 49.409720][ T5071] WARNING: CPU: 1 PID: 5071 at fs/btrfs/inode.c:9950 btrfs_rename2+0x27dc/0x323c [ 49.411067][ T5071] Modules linked in: [ 49.411633][ T5071] CPU: 1 PID: 5071 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.413076][ T5071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 49.414679][ T5071] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.415938][ T5071] pc : btrfs_rename2+0x27dc/0x323c [ 49.416708][ T5071] lr : btrfs_rename2+0x27dc/0x323c [ 49.417517][ T5071] sp : ffff800021b27880 [ 49.418095][ T5071] x29: ffff800021b27980 x28: ffff0000d25a0000 x27: ffff0000cc36034c [ 49.419339][ T5071] x26: ffff0000db088000 x25: 00000000fffffff4 x24: ffff0000deead340 [ 49.420634][ T5071] x23: ffff0000deeae6e0 x22: 0000000000000000 x21: ffff0000decab108 [ 49.421882][ T5071] x20: 1fffe0001bd95621 x19: ffff0000decab0b0 x18: 0000000000000000 [ 49.423116][ T5071] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 49.424310][ T5071] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 49.425592][ T5071] x11: ff8080000830061c x10: 0000000000000000 x9 : 13fd5acb0d93c400 [ 49.427041][ T5071] x8 : 13fd5acb0d93c400 x7 : 0000000000000001 x6 : 0000000000000001 [ 49.428268][ T5071] x5 : ffff800021b27198 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 49.429500][ T5071] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 49.430728][ T5071] Call trace: [ 49.431226][ T5071] btrfs_rename2+0x27dc/0x323c [ 49.431934][ T5071] vfs_rename+0xb08/0xe3c [ 49.432611][ T5071] do_renameat2+0x73c/0xc90 [ 49.433308][ T5071] __arm64_sys_renameat2+0xe8/0x104 [ 49.434085][ T5071] invoke_syscall+0x98/0x28c [ 49.434818][ T5071] el0_svc_common+0x13c/0x258 [ 49.435519][ T5071] do_el0_svc+0x5c/0x140 [ 49.436208][ T5071] el0_svc+0x78/0x1d0 [ 49.436854][ T5071] el0t_64_sync_handler+0xcc/0xe4 [ 49.437670][ T5071] el0t_64_sync+0x1a0/0x1a4 [ 49.438429][ T5071] irq event stamp: 79954 [ 49.439119][ T5071] hardirqs last enabled at (79953): [] __up_console_sem+0xb4/0xfc [ 49.440628][ T5071] hardirqs last disabled at (79954): [] el1_dbg+0x24/0x80 [ 49.441950][ T5071] softirqs last enabled at (79934): [] handle_softirqs+0xa70/0xc14 [ 49.443336][ T5071] softirqs last disabled at (79913): [] __irq_exit_rcu+0x240/0x434 [ 49.444814][ T5071] ---[ end trace ad09fd218400f2d3 ]--- [ 49.446416][ T5071] BTRFS: error (device loop0) in btrfs_rename:9950: errno=-12 Out of memory [ 49.447757][ T5071] BTRFS info (device loop0): forced readonly [ 49.633589][ T5092] loop0: detected capacity change from 0 to 32768 [ 49.636210][ T5092] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5092) [ 49.639111][ T5092] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 49.641317][ T5092] BTRFS info (device loop0): using free space tree [ 49.642393][ T5092] BTRFS info (device loop0): has skinny extents [ 49.653348][ T5092] BTRFS info (device loop0): enabling ssd optimizations [ 49.658476][ T5092] FAULT_INJECTION: forcing a failure. [ 49.658476][ T5092] name failslab, interval 1, probability 0, space 0, times 0 [ 49.660625][ T5092] CPU: 1 PID: 5092 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.662022][ T5092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 49.663663][ T5092] Call trace: [ 49.664082][ T5092] dump_backtrace+0x0/0x458 [ 49.664774][ T5092] show_stack+0x2c/0x3c [ 49.665422][ T5092] __dump_stack+0x30/0x40 [ 49.666185][ T5092] dump_stack_lvl+0xf4/0x15c [ 49.666875][ T5092] dump_stack+0x1c/0x5c [ 49.667498][ T5092] should_fail+0x3c8/0x520 [ 49.668162][ T5092] __should_failslab+0xbc/0x10c [ 49.668932][ T5092] should_failslab+0x10/0x28 [ 49.669668][ T5092] slab_pre_alloc_hook+0x64/0xe8 [ 49.670478][ T5092] kmem_cache_alloc+0x94/0x3d8 [ 49.671245][ T5092] btrfs_alloc_path+0x5c/0x68 [ 49.671875][ T5092] btrfs_insert_inode_ref+0xf4/0xa24 [ 49.672749][ T5092] btrfs_rename2+0x1f20/0x323c [ 49.673598][ T5092] vfs_rename+0xb08/0xe3c [ 49.674356][ T5092] do_renameat2+0x73c/0xc90 [ 49.675069][ T5092] __arm64_sys_renameat2+0xe8/0x104 [ 49.675867][ T5092] invoke_syscall+0x98/0x28c [ 49.676574][ T5092] el0_svc_common+0x13c/0x258 [ 49.677397][ T5092] do_el0_svc+0x5c/0x140 [ 49.678021][ T5092] el0_svc+0x78/0x1d0 [ 49.678690][ T5092] el0t_64_sync_handler+0xcc/0xe4 [ 49.679456][ T5092] el0t_64_sync+0x1a0/0x1a4 [ 49.900680][ T5113] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5113) [ 49.903839][ T5113] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 49.905641][ T5113] BTRFS info (device loop0): using free space tree [ 49.906636][ T5113] BTRFS info (device loop0): has skinny extents [ 49.929887][ T5113] BTRFS info (device loop0): enabling ssd optimizations [ 49.934948][ T5113] FAULT_INJECTION: forcing a failure. [ 49.934948][ T5113] name failslab, interval 1, probability 0, space 0, times 0 [ 49.937566][ T5113] CPU: 1 PID: 5113 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.938879][ T5113] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 49.940484][ T5113] Call trace: [ 49.940976][ T5113] dump_backtrace+0x0/0x458 [ 49.941694][ T5113] show_stack+0x2c/0x3c [ 49.942428][ T5113] __dump_stack+0x30/0x40 [ 49.943081][ T5113] dump_stack_lvl+0xf4/0x15c [ 49.943862][ T5113] dump_stack+0x1c/0x5c [ 49.944552][ T5113] should_fail+0x3c8/0x520 [ 49.945242][ T5113] __should_failslab+0xbc/0x10c [ 49.945996][ T5113] should_failslab+0x10/0x28 [ 49.946670][ T5113] slab_pre_alloc_hook+0x64/0xe8 [ 49.947387][ T5113] kmem_cache_alloc+0x94/0x3d8 [ 49.948110][ T5113] btrfs_alloc_path+0x5c/0x68 [ 49.948795][ T5113] btrfs_insert_inode_ref+0xf4/0xa24 [ 49.949571][ T5113] btrfs_rename2+0x1f20/0x323c [ 49.950285][ T5113] vfs_rename+0xb08/0xe3c [ 49.951016][ T5113] do_renameat2+0x73c/0xc90 [ 49.951740][ T5113] __arm64_sys_renameat2+0xe8/0x104 [ 49.952506][ T5113] invoke_syscall+0x98/0x28c [ 49.953232][ T5113] el0_svc_common+0x13c/0x258 [ 49.953985][ T5113] do_el0_svc+0x5c/0x140 [ 49.954656][ T5113] el0_svc+0x78/0x1d0 [ 49.955329][ T5113] el0t_64_sync_handler+0xcc/0xe4 [ 49.956042][ T5113] el0t_64_sync+0x1a0/0x1a4 [ 50.142835][ T5134] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5134) [ 50.147637][ T5134] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 50.149381][ T5134] BTRFS info (device loop0): using free space tree [ 50.150289][ T5134] BTRFS info (device loop0): has skinny extents [ 50.159174][ T5134] BTRFS info (device loop0): enabling ssd optimizations [ 50.164790][ T5134] FAULT_INJECTION: forcing a failure. [ 50.164790][ T5134] name failslab, interval 1, probability 0, space 0, times 0 [ 50.167281][ T5134] CPU: 1 PID: 5134 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.168698][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 50.170204][ T5134] Call trace: [ 50.170722][ T5134] dump_backtrace+0x0/0x458 [ 50.171417][ T5134] show_stack+0x2c/0x3c [ 50.172121][ T5134] __dump_stack+0x30/0x40 [ 50.172801][ T5134] dump_stack_lvl+0xf4/0x15c [ 50.173551][ T5134] dump_stack+0x1c/0x5c [ 50.174159][ T5134] should_fail+0x3c8/0x520 [ 50.174874][ T5134] __should_failslab+0xbc/0x10c [ 50.175545][ T5134] should_failslab+0x10/0x28 [ 50.176288][ T5134] slab_pre_alloc_hook+0x64/0xe8 [ 50.177108][ T5134] kmem_cache_alloc+0x94/0x3d8 [ 50.177799][ T5134] btrfs_alloc_path+0x5c/0x68 [ 50.178506][ T5134] __btrfs_unlink_inode+0x1e0/0xab8 [ 50.179309][ T5134] btrfs_rename2+0x21a4/0x323c [ 50.180062][ T5134] vfs_rename+0xb08/0xe3c [ 50.180703][ T5134] do_renameat2+0x73c/0xc90 [ 50.181390][ T5134] __arm64_sys_renameat2+0xe8/0x104 [ 50.182190][ T5134] invoke_syscall+0x98/0x28c [ 50.182829][ T5134] el0_svc_common+0x13c/0x258 [ 50.183556][ T5134] do_el0_svc+0x5c/0x140 [ 50.184237][ T5134] el0_svc+0x78/0x1d0 [ 50.184887][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 50.185711][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 50.188712][ T5134] ------------[ cut here ]------------ [ 50.189759][ T5134] WARNING: CPU: 1 PID: 5134 at fs/btrfs/inode.c:9950 btrfs_rename2+0x27dc/0x323c [ 50.191224][ T5134] Modules linked in: [ 50.191809][ T5134] CPU: 1 PID: 5134 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.193282][ T5134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 50.194879][ T5134] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.196131][ T5134] pc : btrfs_rename2+0x27dc/0x323c [ 50.197005][ T5134] lr : btrfs_rename2+0x27dc/0x323c [ 50.197843][ T5134] sp : ffff800021d27880 [ 50.198550][ T5134] x29: ffff800021d27980 x28: ffff0000d002c000 x27: ffff0000cfdd3acc [ 50.199736][ T5134] x26: ffff0000d7a9a000 x25: 00000000fffffff4 x24: ffff0000e29766e0 [ 50.200998][ T5134] x23: ffff0000e2975340 x22: 0000000000000000 x21: ffff0000decab898 [ 50.202229][ T5134] x20: 1fffe0001bd95713 x19: ffff0000decab840 x18: 0000000000000000 [ 50.203495][ T5134] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 50.204741][ T5134] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 50.206048][ T5134] x11: ff8080000830061c x10: 0000000000000000 x9 : 8ab0d57bb3d91a00 [ 50.207386][ T5134] x8 : 8ab0d57bb3d91a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 50.208766][ T5134] x5 : ffff800021d27198 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 50.210055][ T5134] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 50.211305][ T5134] Call trace: [ 50.211855][ T5134] btrfs_rename2+0x27dc/0x323c [ 50.212636][ T5134] vfs_rename+0xb08/0xe3c [ 50.213312][ T5134] do_renameat2+0x73c/0xc90 [ 50.213943][ T5134] __arm64_sys_renameat2+0xe8/0x104 [ 50.214695][ T5134] invoke_syscall+0x98/0x28c [ 50.215427][ T5134] el0_svc_common+0x13c/0x258 [ 50.216196][ T5134] do_el0_svc+0x5c/0x140 [ 50.216881][ T5134] el0_svc+0x78/0x1d0 [ 50.217566][ T5134] el0t_64_sync_handler+0xcc/0xe4 [ 50.218347][ T5134] el0t_64_sync+0x1a0/0x1a4 [ 50.219048][ T5134] irq event stamp: 80420 [ 50.219638][ T5134] hardirqs last enabled at (80419): [] __up_console_sem+0xb4/0xfc [ 50.221039][ T5134] hardirqs last disabled at (80420): [] el1_dbg+0x24/0x80 [ 50.222400][ T5134] softirqs last enabled at (80400): [] handle_softirqs+0xa70/0xc14 [ 50.223892][ T5134] softirqs last disabled at (80283): [] __irq_exit_rcu+0x240/0x434 [ 50.225517][ T5134] ---[ end trace ad09fd218400f2d4 ]--- [ 50.229009][ T5134] BTRFS: error (device loop0) in btrfs_rename:9950: errno=-12 Out of memory [ 50.230478][ T5134] BTRFS info (device loop0): forced readonly [ 50.422152][ T5155] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5155) [ 50.427801][ T5155] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 50.429463][ T5155] BTRFS info (device loop0): using free space tree [ 50.430473][ T5155] BTRFS info (device loop0): has skinny extents [ 50.439572][ T5155] BTRFS info (device loop0): enabling ssd optimizations [ 50.444992][ T5155] FAULT_INJECTION: forcing a failure. [ 50.444992][ T5155] name failslab, interval 1, probability 0, space 0, times 0 [ 50.447635][ T5155] CPU: 1 PID: 5155 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.449109][ T5155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 50.450772][ T5155] Call trace: [ 50.451272][ T5155] dump_backtrace+0x0/0x458 [ 50.452026][ T5155] show_stack+0x2c/0x3c [ 50.452618][ T5155] __dump_stack+0x30/0x40 [ 50.453330][ T5155] dump_stack_lvl+0xf4/0x15c [ 50.453989][ T5155] dump_stack+0x1c/0x5c [ 50.454635][ T5155] should_fail+0x3c8/0x520 [ 50.455415][ T5155] __should_failslab+0xbc/0x10c [ 50.456143][ T5155] should_failslab+0x10/0x28 [ 50.456859][ T5155] slab_pre_alloc_hook+0x64/0xe8 [ 50.457649][ T5155] kmem_cache_alloc+0x94/0x3d8 [ 50.458445][ T5155] btrfs_alloc_path+0x5c/0x68 [ 50.459226][ T5155] __btrfs_unlink_inode+0x1e0/0xab8 [ 50.460016][ T5155] btrfs_rename2+0x21a4/0x323c [ 50.460720][ T5155] vfs_rename+0xb08/0xe3c [ 50.461399][ T5155] do_renameat2+0x73c/0xc90 [ 50.462073][ T5155] __arm64_sys_renameat2+0xe8/0x104 [ 50.462931][ T5155] invoke_syscall+0x98/0x28c [ 50.463717][ T5155] el0_svc_common+0x13c/0x258 [ 50.464425][ T5155] do_el0_svc+0x5c/0x140 [ 50.465079][ T5155] el0_svc+0x78/0x1d0 [ 50.465640][ T5155] el0t_64_sync_handler+0xcc/0xe4 [ 50.466410][ T5155] el0t_64_sync+0x1a0/0x1a4 [ 50.468997][ T5155] ------------[ cut here ]------------ [ 50.469892][ T5155] WARNING: CPU: 1 PID: 5155 at fs/btrfs/inode.c:9950 btrfs_rename2+0x27dc/0x323c [ 50.471256][ T5155] Modules linked in: [ 50.471887][ T5155] CPU: 1 PID: 5155 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.473278][ T5155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 50.474777][ T5155] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.475976][ T5155] pc : btrfs_rename2+0x27dc/0x323c [ 50.476736][ T5155] lr : btrfs_rename2+0x27dc/0x323c [ 50.477512][ T5155] sp : ffff800021fa7880 [ 50.478153][ T5155] x29: ffff800021fa7980 x28: ffff0000d002c000 x27: ffff0000dd152f0c [ 50.479427][ T5155] x26: ffff0000d8dfa000 x25: 00000000fffffff4 x24: ffff0000e2974970 [ 50.480683][ T5155] x23: ffff0000e2973fa0 x22: 0000000000000000 x21: ffff0000decabaa8 [ 50.481836][ T5155] x20: 1fffe0001bd95755 x19: ffff0000decaba50 x18: 0000000000000000 [ 50.482968][ T5155] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 50.484325][ T5155] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 50.485556][ T5155] x11: ff8080000830061c x10: 0000000000000000 x9 : 9215a16b011e1e00 [ 50.486782][ T5155] x8 : 9215a16b011e1e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 50.487971][ T5155] x5 : ffff800021fa7198 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 50.489212][ T5155] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 50.490463][ T5155] Call trace: [ 50.490981][ T5155] btrfs_rename2+0x27dc/0x323c [ 50.491719][ T5155] vfs_rename+0xb08/0xe3c [ 50.492410][ T5155] do_renameat2+0x73c/0xc90 [ 50.493119][ T5155] __arm64_sys_renameat2+0xe8/0x104 [ 50.493849][ T5155] invoke_syscall+0x98/0x28c [ 50.494508][ T5155] el0_svc_common+0x13c/0x258 [ 50.495197][ T5155] do_el0_svc+0x5c/0x140 [ 50.495786][ T5155] el0_svc+0x78/0x1d0 [ 50.496382][ T5155] el0t_64_sync_handler+0xcc/0xe4 [ 50.497131][ T5155] el0t_64_sync+0x1a0/0x1a4 [ 50.497765][ T5155] irq event stamp: 80394 [ 50.498397][ T5155] hardirqs last enabled at (80393): [] __up_console_sem+0xb4/0xfc [ 50.499757][ T5155] hardirqs last disabled at (80394): [] el1_dbg+0x24/0x80 [ 50.500980][ T5155] softirqs last enabled at (80374): [] handle_softirqs+0xa70/0xc14 [ 50.502357][ T5155] softirqs last disabled at (80267): [] __irq_exit_rcu+0x240/0x434 [ 50.503694][ T5155] ---[ end trace ad09fd218400f2d5 ]--- [ 50.505646][ T5155] BTRFS: error (device loop0) in btrfs_rename:9950: errno=-12 Out of memory [ 50.506949][ T5155] BTRFS info (device loop0): forced readonly [ 50.700341][ T5176] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5176) [ 50.705093][ T5176] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 50.706989][ T5176] BTRFS info (device loop0): using free space tree [ 50.708101][ T5176] BTRFS info (device loop0): has skinny extents [ 50.717990][ T5176] BTRFS info (device loop0): enabling ssd optimizations [ 50.723147][ T5176] FAULT_INJECTION: forcing a failure. [ 50.723147][ T5176] name failslab, interval 1, probability 0, space 0, times 0 [ 50.725803][ T5176] CPU: 1 PID: 5176 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.727147][ T5176] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 50.728590][ T5176] Call trace: [ 50.729152][ T5176] dump_backtrace+0x0/0x458 [ 50.729814][ T5176] show_stack+0x2c/0x3c [ 50.730371][ T5176] __dump_stack+0x30/0x40 [ 50.730957][ T5176] dump_stack_lvl+0xf4/0x15c [ 50.731798][ T5176] dump_stack+0x1c/0x5c [ 50.732575][ T5176] should_fail+0x3c8/0x520 [ 50.733252][ T5176] __should_failslab+0xbc/0x10c [ 50.734058][ T5176] should_failslab+0x10/0x28 [ 50.734799][ T5176] slab_pre_alloc_hook+0x64/0xe8 [ 50.735549][ T5176] kmem_cache_alloc+0x94/0x3d8 [ 50.736302][ T5176] btrfs_alloc_path+0x5c/0x68 [ 50.737039][ T5176] btrfs_insert_inode_ref+0xf4/0xa24 [ 50.737853][ T5176] btrfs_rename2+0x1f20/0x323c [ 50.738669][ T5176] vfs_rename+0xb08/0xe3c [ 50.739400][ T5176] do_renameat2+0x73c/0xc90 [ 50.740113][ T5176] __arm64_sys_renameat2+0xe8/0x104 [ 50.740980][ T5176] invoke_syscall+0x98/0x28c [ 50.741691][ T5176] el0_svc_common+0x13c/0x258 [ 50.742379][ T5176] do_el0_svc+0x5c/0x140 [ 50.743091][ T5176] el0_svc+0x78/0x1d0 [ 50.743670][ T5176] el0t_64_sync_handler+0xcc/0xe4 [ 50.744406][ T5176] el0t_64_sync+0x1a0/0x1a4 [ 50.954319][ T5197] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5197) [ 50.963165][ T5197] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 50.964561][ T5197] BTRFS info (device loop0): using free space tree [ 50.965987][ T5197] BTRFS info (device loop0): has skinny extents [ 50.980467][ T5197] BTRFS info (device loop0): enabling ssd optimizations [ 50.986689][ T5197] FAULT_INJECTION: forcing a failure. [ 50.986689][ T5197] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 50.989091][ T5197] CPU: 1 PID: 5197 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.990506][ T5197] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 50.992086][ T5197] Call trace: [ 50.992583][ T5197] dump_backtrace+0x0/0x458 [ 50.993239][ T5197] show_stack+0x2c/0x3c [ 50.993916][ T5197] __dump_stack+0x30/0x40 [ 50.994607][ T5197] dump_stack_lvl+0xf4/0x15c [ 50.995333][ T5197] dump_stack+0x1c/0x5c [ 50.995953][ T5197] should_fail+0x3c8/0x520 [ 50.996612][ T5197] should_fail_alloc_page+0x74/0xa8 [ 50.997417][ T5197] prepare_alloc_pages+0x160/0x460 [ 50.998213][ T5197] __alloc_pages+0x108/0x474 [ 50.998931][ T5197] alloc_pages+0x34c/0x5c0 [ 50.999649][ T5197] new_slab+0xdc/0x53c [ 51.000302][ T5197] ___slab_alloc+0x6ac/0xd84 [ 51.000932][ T5197] __slab_alloc+0x68/0xc0 [ 51.001580][ T5197] kmem_cache_alloc+0x2a8/0x3d8 [ 51.002256][ T5197] start_transaction+0x530/0x1438 [ 51.003010][ T5197] btrfs_start_transaction+0x34/0x44 [ 51.003792][ T5197] btrfs_rename2+0x1b7c/0x323c [ 51.004559][ T5197] vfs_rename+0xb08/0xe3c [ 51.005187][ T5197] do_renameat2+0x73c/0xc90 [ 51.005810][ T5197] __arm64_sys_renameat2+0xe8/0x104 [ 51.006563][ T5197] invoke_syscall+0x98/0x28c [ 51.007273][ T5197] el0_svc_common+0x13c/0x258 [ 51.007962][ T5197] do_el0_svc+0x5c/0x140 [ 51.008657][ T5197] el0_svc+0x78/0x1d0 [ 51.009308][ T5197] el0t_64_sync_handler+0xcc/0xe4 [ 51.010089][ T5197] el0t_64_sync+0x1a0/0x1a4 [ 51.206193][ T5218] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5218) [ 51.210610][ T5218] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 51.212254][ T5218] BTRFS info (device loop0): using free space tree [ 51.213382][ T5218] BTRFS info (device loop0): has skinny extents [ 51.225632][ T5218] BTRFS info (device loop0): enabling ssd optimizations [ 51.230632][ T5218] FAULT_INJECTION: forcing a failure. [ 51.230632][ T5218] name failslab, interval 1, probability 0, space 0, times 0 [ 51.232838][ T5218] CPU: 0 PID: 5218 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.234244][ T5218] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 51.235723][ T5218] Call trace: [ 51.236247][ T5218] dump_backtrace+0x0/0x458 [ 51.236935][ T5218] show_stack+0x2c/0x3c [ 51.237650][ T5218] __dump_stack+0x30/0x40 [ 51.238346][ T5218] dump_stack_lvl+0xf4/0x15c [ 51.239114][ T5218] dump_stack+0x1c/0x5c [ 51.239773][ T5218] should_fail+0x3c8/0x520 [ 51.240455][ T5218] __should_failslab+0xbc/0x10c [ 51.241195][ T5218] should_failslab+0x10/0x28 [ 51.241881][ T5218] slab_pre_alloc_hook+0x64/0xe8 [ 51.242625][ T5218] kmem_cache_alloc+0x94/0x3d8 [ 51.243356][ T5218] btrfs_alloc_path+0x5c/0x68 [ 51.244036][ T5218] __btrfs_unlink_inode+0x1e0/0xab8 [ 51.244877][ T5218] btrfs_rename2+0x21a4/0x323c [ 51.245631][ T5218] vfs_rename+0xb08/0xe3c [ 51.246327][ T5218] do_renameat2+0x73c/0xc90 [ 51.247036][ T5218] __arm64_sys_renameat2+0xe8/0x104 [ 51.247777][ T5218] invoke_syscall+0x98/0x28c [ 51.248518][ T5218] el0_svc_common+0x13c/0x258 [ 51.249251][ T5218] do_el0_svc+0x5c/0x140 [ 51.249937][ T5218] el0_svc+0x78/0x1d0 [ 51.250504][ T5218] el0t_64_sync_handler+0xcc/0xe4 [ 51.251289][ T5218] el0t_64_sync+0x1a0/0x1a4 [ 51.253612][ T5218] ------------[ cut here ]------------ [ 51.254604][ T5218] WARNING: CPU: 0 PID: 5218 at fs/btrfs/inode.c:9950 btrfs_rename2+0x27dc/0x323c [ 51.255951][ T5218] Modules linked in: [ 51.256512][ T5218] CPU: 0 PID: 5218 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.257959][ T5218] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 51.259539][ T5218] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.260752][ T5218] pc : btrfs_rename2+0x27dc/0x323c [ 51.261558][ T5218] lr : btrfs_rename2+0x27dc/0x323c [ 51.262321][ T5218] sp : ffff800022437880 [ 51.262929][ T5218] x29: ffff800022437980 x28: ffff0000cd458000 x27: ffff0000dd1f1664 [ 51.264158][ T5218] x26: ffff0000c0c58000 x25: 00000000fffffff4 x24: ffff0000e29af0b0 [ 51.265371][ T5218] x23: ffff0000deee4970 x22: 0000000000000000 x21: ffff0000dd3f9cb8 [ 51.266617][ T5218] x20: 1fffe0001ba7f397 x19: ffff0000dd3f9c60 x18: 0000000000000000 [ 51.267819][ T5218] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 51.268986][ T5218] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 51.270160][ T5218] x11: ff8080000830061c x10: 0000000000000000 x9 : b83cf264cccf6300 [ 51.271455][ T5218] x8 : b83cf264cccf6300 x7 : 0000000000000001 x6 : 0000000000000001 [ 51.272649][ T5218] x5 : ffff800022437198 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 51.273871][ T5218] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 51.275099][ T5218] Call trace: [ 51.275622][ T5218] btrfs_rename2+0x27dc/0x323c [ 51.276343][ T5218] vfs_rename+0xb08/0xe3c [ 51.277039][ T5218] do_renameat2+0x73c/0xc90 [ 51.277795][ T5218] __arm64_sys_renameat2+0xe8/0x104 [ 51.278593][ T5218] invoke_syscall+0x98/0x28c [ 51.279332][ T5218] el0_svc_common+0x13c/0x258 [ 51.280025][ T5218] do_el0_svc+0x5c/0x140 [ 51.280628][ T5218] el0_svc+0x78/0x1d0 [ 51.281210][ T5218] el0t_64_sync_handler+0xcc/0xe4 [ 51.282019][ T5218] el0t_64_sync+0x1a0/0x1a4 [ 51.282744][ T5218] irq event stamp: 79796 [ 51.283453][ T5218] hardirqs last enabled at (79795): [] __up_console_sem+0xb4/0xfc [ 51.284935][ T5218] hardirqs last disabled at (79796): [] el1_dbg+0x24/0x80 [ 51.286311][ T5218] softirqs last enabled at (79776): [] handle_softirqs+0xa70/0xc14 [ 51.287852][ T5218] softirqs last disabled at (79731): [] __irq_exit_rcu+0x240/0x434 [ 51.289402][ T5218] ---[ end trace ad09fd218400f2d6 ]--- [ 51.291069][ T5218] BTRFS: error (device loop0) in btrfs_rename:9950: errno=-12 Out of memory [ 51.292358][ T5218] BTRFS info (device loop0): forced readonly 1970/01/01 00:00:51 executed programs: 34 [ 51.492902][ T5239] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5239) [ 51.497341][ T5239] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 51.499057][ T5239] BTRFS info (device loop0): using free space tree [ 51.499962][ T5239] BTRFS info (device loop0): has skinny extents [ 51.517407][ T5239] BTRFS info (device loop0): enabling ssd optimizations [ 51.522697][ T5239] FAULT_INJECTION: forcing a failure. [ 51.522697][ T5239] name failslab, interval 1, probability 0, space 0, times 0 [ 51.524538][ T5239] CPU: 1 PID: 5239 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.525815][ T5239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 51.527247][ T5239] Call trace: [ 51.527695][ T5239] dump_backtrace+0x0/0x458 [ 51.528397][ T5239] show_stack+0x2c/0x3c [ 51.528967][ T5239] __dump_stack+0x30/0x40 [ 51.529545][ T5239] dump_stack_lvl+0xf4/0x15c [ 51.530195][ T5239] dump_stack+0x1c/0x5c [ 51.530733][ T5239] should_fail+0x3c8/0x520 [ 51.531373][ T5239] __should_failslab+0xbc/0x10c [ 51.532065][ T5239] should_failslab+0x10/0x28 [ 51.532693][ T5239] slab_pre_alloc_hook+0x64/0xe8 [ 51.533386][ T5239] kmem_cache_alloc+0x94/0x3d8 [ 51.534131][ T5239] btrfs_alloc_path+0x5c/0x68 [ 51.534812][ T5239] __btrfs_unlink_inode+0x1e0/0xab8 [ 51.535637][ T5239] btrfs_rename2+0x21a4/0x323c [ 51.536438][ T5239] vfs_rename+0xb08/0xe3c [ 51.537136][ T5239] do_renameat2+0x73c/0xc90 [ 51.537855][ T5239] __arm64_sys_renameat2+0xe8/0x104 [ 51.538642][ T5239] invoke_syscall+0x98/0x28c [ 51.539346][ T5239] el0_svc_common+0x13c/0x258 [ 51.540062][ T5239] do_el0_svc+0x5c/0x140 [ 51.540692][ T5239] el0_svc+0x78/0x1d0 [ 51.541329][ T5239] el0t_64_sync_handler+0xcc/0xe4 [ 51.542102][ T5239] el0t_64_sync+0x1a0/0x1a4 [ 51.544872][ T5239] ------------[ cut here ]------------ [ 51.545981][ T5239] WARNING: CPU: 1 PID: 5239 at fs/btrfs/inode.c:9950 btrfs_rename2+0x27dc/0x323c [ 51.547218][ T5239] Modules linked in: [ 51.547767][ T5239] CPU: 1 PID: 5239 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.549161][ T5239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 51.550497][ T5239] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.551636][ T5239] pc : btrfs_rename2+0x27dc/0x323c [ 51.552382][ T5239] lr : btrfs_rename2+0x27dc/0x323c [ 51.553139][ T5239] sp : ffff800022587880 [ 51.553825][ T5239] x29: ffff800022587980 x28: ffff0000c8db4000 x27: ffff0000def871fc [ 51.555012][ T5239] x26: ffff0000c1f90000 x25: 00000000fffffff4 x24: ffff0000dd343fa0 [ 51.556140][ T5239] x23: ffff0000dd345340 x22: 0000000000000000 x21: ffff0000dedcc3c8 [ 51.557360][ T5239] x20: 1fffe0001bdb9879 x19: ffff0000dedcc370 x18: 0000000000000000 [ 51.558506][ T5239] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 51.559788][ T5239] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 51.560972][ T5239] x11: ff8080000830061c x10: 0000000000000000 x9 : 987c08e88f2c3900 [ 51.562191][ T5239] x8 : 987c08e88f2c3900 x7 : 0000000000000001 x6 : 0000000000000001 [ 51.563451][ T5239] x5 : ffff800022587198 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 51.564711][ T5239] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 51.565961][ T5239] Call trace: [ 51.566421][ T5239] btrfs_rename2+0x27dc/0x323c [ 51.567135][ T5239] vfs_rename+0xb08/0xe3c [ 51.567758][ T5239] do_renameat2+0x73c/0xc90 [ 51.568413][ T5239] __arm64_sys_renameat2+0xe8/0x104 [ 51.569197][ T5239] invoke_syscall+0x98/0x28c [ 51.569955][ T5239] el0_svc_common+0x13c/0x258 [ 51.570653][ T5239] do_el0_svc+0x5c/0x140 [ 51.571273][ T5239] el0_svc+0x78/0x1d0 [ 51.571874][ T5239] el0t_64_sync_handler+0xcc/0xe4 [ 51.572713][ T5239] el0t_64_sync+0x1a0/0x1a4 [ 51.573409][ T5239] irq event stamp: 80966 [ 51.574035][ T5239] hardirqs last enabled at (80965): [] __up_console_sem+0xb4/0xfc [ 51.575391][ T5239] hardirqs last disabled at (80966): [] el1_dbg+0x24/0x80 [ 51.576622][ T5239] softirqs last enabled at (80956): [] handle_softirqs+0xa70/0xc14 [ 51.578111][ T5239] softirqs last disabled at (80879): [] __irq_exit_rcu+0x240/0x434 [ 51.579516][ T5239] ---[ end trace ad09fd218400f2d7 ]--- [ 51.581166][ T5239] BTRFS: error (device loop0) in btrfs_rename:9950: errno=-12 Out of memory [ 51.582715][ T5239] BTRFS info (device loop0): forced readonly [ 51.765527][ T5260] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5260) [ 51.776900][ T5260] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 51.778300][ T5260] BTRFS info (device loop0): using free space tree [ 51.779276][ T5260] BTRFS info (device loop0): has skinny extents [ 51.791469][ T5260] BTRFS info (device loop0): enabling ssd optimizations [ 51.797220][ T5260] FAULT_INJECTION: forcing a failure. [ 51.797220][ T5260] name failslab, interval 1, probability 0, space 0, times 0 [ 51.799289][ T5260] CPU: 1 PID: 5260 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.800671][ T5260] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 51.802200][ T5260] Call trace: [ 51.802678][ T5260] dump_backtrace+0x0/0x458 [ 51.803383][ T5260] show_stack+0x2c/0x3c [ 51.804048][ T5260] __dump_stack+0x30/0x40 [ 51.804727][ T5260] dump_stack_lvl+0xf4/0x15c [ 51.805379][ T5260] dump_stack+0x1c/0x5c [ 51.806040][ T5260] should_fail+0x3c8/0x520 [ 51.806702][ T5260] __should_failslab+0xbc/0x10c [ 51.807502][ T5260] should_failslab+0x10/0x28 [ 51.808209][ T5260] slab_pre_alloc_hook+0x64/0xe8 [ 51.808984][ T5260] kmem_cache_alloc+0x94/0x3d8 [ 51.809712][ T5260] btrfs_alloc_path+0x5c/0x68 [ 51.810402][ T5260] btrfs_insert_inode_ref+0xf4/0xa24 [ 51.811270][ T5260] btrfs_rename2+0x1f20/0x323c [ 51.811971][ T5260] vfs_rename+0xb08/0xe3c [ 51.812636][ T5260] do_renameat2+0x73c/0xc90 [ 51.813329][ T5260] __arm64_sys_renameat2+0xe8/0x104 [ 51.814162][ T5260] invoke_syscall+0x98/0x28c [ 51.814865][ T5260] el0_svc_common+0x13c/0x258 [ 51.815531][ T5260] do_el0_svc+0x5c/0x140 [ 51.816135][ T5260] el0_svc+0x78/0x1d0 [ 51.816792][ T5260] el0t_64_sync_handler+0xcc/0xe4 [ 51.817590][ T5260] el0t_64_sync+0x1a0/0x1a4 [ 52.003156][ T5281] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5281) [ 52.008713][ T5281] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 52.010174][ T5281] BTRFS info (device loop0): using free space tree [ 52.011088][ T5281] BTRFS info (device loop0): has skinny extents [ 52.026983][ T5281] BTRFS info (device loop0): enabling ssd optimizations [ 52.032528][ T5281] FAULT_INJECTION: forcing a failure. [ 52.032528][ T5281] name failslab, interval 1, probability 0, space 0, times 0 [ 52.034680][ T5281] CPU: 1 PID: 5281 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.036159][ T5281] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 52.037785][ T5281] Call trace: [ 52.038335][ T5281] dump_backtrace+0x0/0x458 [ 52.039105][ T5281] show_stack+0x2c/0x3c [ 52.039744][ T5281] __dump_stack+0x30/0x40 [ 52.040417][ T5281] dump_stack_lvl+0xf4/0x15c [ 52.041104][ T5281] dump_stack+0x1c/0x5c [ 52.041699][ T5281] should_fail+0x3c8/0x520 [ 52.042362][ T5281] __should_failslab+0xbc/0x10c [ 52.043080][ T5281] should_failslab+0x10/0x28 [ 52.043712][ T5281] slab_pre_alloc_hook+0x64/0xe8 [ 52.044499][ T5281] kmem_cache_alloc+0x94/0x3d8 [ 52.045178][ T5281] btrfs_alloc_path+0x5c/0x68 [ 52.045868][ T5281] btrfs_insert_inode_ref+0xf4/0xa24 [ 52.046618][ T5281] btrfs_rename2+0x1f20/0x323c [ 52.047285][ T5281] vfs_rename+0xb08/0xe3c [ 52.047962][ T5281] do_renameat2+0x73c/0xc90 [ 52.048627][ T5281] __arm64_sys_renameat2+0xe8/0x104 [ 52.049478][ T5281] invoke_syscall+0x98/0x28c [ 52.050157][ T5281] el0_svc_common+0x13c/0x258 [ 52.050876][ T5281] do_el0_svc+0x5c/0x140 [ 52.051566][ T5281] el0_svc+0x78/0x1d0 [ 52.052146][ T5281] el0t_64_sync_handler+0xcc/0xe4 [ 52.052944][ T5281] el0t_64_sync+0x1a0/0x1a4 [ 52.241503][ T5302] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5302) [ 52.244938][ T5302] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 52.246925][ T5302] BTRFS info (device loop0): using free space tree [ 52.248040][ T5302] BTRFS info (device loop0): has skinny extents [ 52.256959][ T5302] BTRFS info (device loop0): enabling ssd optimizations [ 52.262134][ T5302] FAULT_INJECTION: forcing a failure. [ 52.262134][ T5302] name failslab, interval 1, probability 0, space 0, times 0 [ 52.264381][ T5302] CPU: 1 PID: 5302 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.265749][ T5302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 52.267287][ T5302] Call trace: [ 52.267773][ T5302] dump_backtrace+0x0/0x458 [ 52.268468][ T5302] show_stack+0x2c/0x3c [ 52.269125][ T5302] __dump_stack+0x30/0x40 [ 52.269826][ T5302] dump_stack_lvl+0xf4/0x15c [ 52.270586][ T5302] dump_stack+0x1c/0x5c [ 52.271267][ T5302] should_fail+0x3c8/0x520 [ 52.271953][ T5302] __should_failslab+0xbc/0x10c [ 52.272833][ T5302] should_failslab+0x10/0x28 [ 52.273563][ T5302] slab_pre_alloc_hook+0x64/0xe8 [ 52.274385][ T5302] kmem_cache_alloc+0x94/0x3d8 [ 52.275111][ T5302] btrfs_alloc_path+0x5c/0x68 [ 52.275806][ T5302] btrfs_insert_inode_ref+0xf4/0xa24 [ 52.276619][ T5302] btrfs_rename2+0x1f20/0x323c [ 52.277392][ T5302] vfs_rename+0xb08/0xe3c [ 52.278111][ T5302] do_renameat2+0x73c/0xc90 [ 52.278807][ T5302] __arm64_sys_renameat2+0xe8/0x104 [ 52.279584][ T5302] invoke_syscall+0x98/0x28c [ 52.280329][ T5302] el0_svc_common+0x13c/0x258 [ 52.281042][ T5302] do_el0_svc+0x5c/0x140 [ 52.281745][ T5302] el0_svc+0x78/0x1d0 [ 52.282347][ T5302] el0t_64_sync_handler+0xcc/0xe4 [ 52.283152][ T5302] el0t_64_sync+0x1a0/0x1a4 [ 52.463101][ T5323] set_capacity_and_notify: 10 callbacks suppressed [ 52.463109][ T5323] loop0: detected capacity change from 0 to 32768 [ 52.466840][ T5323] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5323) [ 52.470330][ T5323] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 52.471890][ T5323] BTRFS info (device loop0): using free space tree [ 52.472877][ T5323] BTRFS info (device loop0): has skinny extents [ 52.483769][ T5323] BTRFS info (device loop0): enabling ssd optimizations [ 52.489447][ T5323] FAULT_INJECTION: forcing a failure. [ 52.489447][ T5323] name failslab, interval 1, probability 0, space 0, times 0 [ 52.491595][ T5323] CPU: 0 PID: 5323 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.493156][ T5323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 52.494733][ T5323] Call trace: [ 52.495254][ T5323] dump_backtrace+0x0/0x458 [ 52.496059][ T5323] show_stack+0x2c/0x3c [ 52.496711][ T5323] __dump_stack+0x30/0x40 [ 52.497383][ T5323] dump_stack_lvl+0xf4/0x15c [ 52.498120][ T5323] dump_stack+0x1c/0x5c [ 52.498804][ T5323] should_fail+0x3c8/0x520 [ 52.499549][ T5323] __should_failslab+0xbc/0x10c [ 52.500326][ T5323] should_failslab+0x10/0x28 [ 52.501045][ T5323] slab_pre_alloc_hook+0x64/0xe8 [ 52.501857][ T5323] kmem_cache_alloc+0x94/0x3d8 [ 52.502658][ T5323] btrfs_alloc_path+0x5c/0x68 [ 52.503394][ T5323] btrfs_insert_inode_ref+0xf4/0xa24 [ 52.504166][ T5323] btrfs_rename2+0x1f20/0x323c [ 52.504890][ T5323] vfs_rename+0xb08/0xe3c [ 52.505535][ T5323] do_renameat2+0x73c/0xc90 [ 52.506222][ T5323] __arm64_sys_renameat2+0xe8/0x104 [ 52.507071][ T5323] invoke_syscall+0x98/0x28c [ 52.507751][ T5323] el0_svc_common+0x13c/0x258 [ 52.508468][ T5323] do_el0_svc+0x5c/0x140 [ 52.509133][ T5323] el0_svc+0x78/0x1d0 [ 52.509755][ T5323] el0t_64_sync_handler+0xcc/0xe4 [ 52.510512][ T5323] el0t_64_sync+0x1a0/0x1a4 [ 52.705356][ T5344] loop0: detected capacity change from 0 to 32768 [ 52.711066][ T5344] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5344) [ 52.716510][ T5344] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 52.717998][ T5344] BTRFS info (device loop0): using free space tree [ 52.719103][ T5344] BTRFS info (device loop0): has skinny extents [ 52.730654][ T5344] BTRFS info (device loop0): enabling ssd optimizations [ 52.736565][ T5344] FAULT_INJECTION: forcing a failure. [ 52.736565][ T5344] name failslab, interval 1, probability 0, space 0, times 0 [ 52.738702][ T5344] CPU: 0 PID: 5344 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.740245][ T5344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 52.741706][ T5344] Call trace: [ 52.742223][ T5344] dump_backtrace+0x0/0x458 [ 52.742912][ T5344] show_stack+0x2c/0x3c [ 52.743656][ T5344] __dump_stack+0x30/0x40 [ 52.744382][ T5344] dump_stack_lvl+0xf4/0x15c [ 52.745117][ T5344] dump_stack+0x1c/0x5c [ 52.745745][ T5344] should_fail+0x3c8/0x520 [ 52.746415][ T5344] __should_failslab+0xbc/0x10c [ 52.747124][ T5344] should_failslab+0x10/0x28 [ 52.747877][ T5344] slab_pre_alloc_hook+0x64/0xe8 [ 52.748649][ T5344] kmem_cache_alloc+0x94/0x3d8 [ 52.749405][ T5344] btrfs_alloc_path+0x5c/0x68 [ 52.750144][ T5344] __btrfs_unlink_inode+0x1e0/0xab8 [ 52.750946][ T5344] btrfs_rename2+0x21a4/0x323c [ 52.751640][ T5344] vfs_rename+0xb08/0xe3c [ 52.752301][ T5344] do_renameat2+0x73c/0xc90 [ 52.753031][ T5344] __arm64_sys_renameat2+0xe8/0x104 [ 52.753860][ T5344] invoke_syscall+0x98/0x28c [ 52.754517][ T5344] el0_svc_common+0x13c/0x258 [ 52.755205][ T5344] do_el0_svc+0x5c/0x140 [ 52.755896][ T5344] el0_svc+0x78/0x1d0 [ 52.756504][ T5344] el0t_64_sync_handler+0xcc/0xe4 [ 52.757331][ T5344] el0t_64_sync+0x1a0/0x1a4 [ 52.758787][ T5344] ------------[ cut here ]------------ [ 52.759708][ T5344] WARNING: CPU: 0 PID: 5344 at fs/btrfs/inode.c:9950 btrfs_rename2+0x27dc/0x323c [ 52.761086][ T5344] Modules linked in: [ 52.761668][ T5344] CPU: 0 PID: 5344 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.763129][ T5344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 52.764696][ T5344] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.765935][ T5344] pc : btrfs_rename2+0x27dc/0x323c [ 52.766699][ T5344] lr : btrfs_rename2+0x27dc/0x323c [ 52.767509][ T5344] sp : ffff800023227880 [ 52.768185][ T5344] x29: ffff800023227980 x28: ffff0000c8e0c000 x27: ffff0000dd1377dc [ 52.769513][ T5344] x26: ffff0000dc11a000 x25: 00000000fffffff4 x24: ffff0000deee35d0