Warning: Permanently added '10.128.0.135' (ED25519) to the list of known hosts. 1970/01/01 00:00:45 ignoring optional flag "type"="gce" 1970/01/01 00:00:45 parsed 1 programs [ 45.679691][ T4321] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS 1970/01/01 00:00:45 executed programs: 0 [ 45.744862][ T4327] chnl_net:caif_netlink_parms(): no params data found [ 45.763824][ T4327] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.764992][ T4327] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.766371][ T4327] device bridge_slave_0 entered promiscuous mode [ 45.768522][ T4327] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.769588][ T4327] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.770927][ T4327] device bridge_slave_1 entered promiscuous mode [ 45.779309][ T4327] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 45.781836][ T4327] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 45.790284][ T4327] team0: Port device team_slave_0 added [ 45.791982][ T4327] team0: Port device team_slave_1 added [ 45.799308][ T4327] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 45.800370][ T4327] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 45.804572][ T4327] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 45.806987][ T4327] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 45.808461][ T4327] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 45.812496][ T4327] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 45.899239][ T4327] device hsr_slave_0 entered promiscuous mode [ 45.938165][ T4327] device hsr_slave_1 entered promiscuous mode [ 46.523836][ T4327] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 46.539769][ T4327] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 46.569454][ T4327] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 46.619863][ T4327] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 46.687038][ T4327] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.688213][ T4327] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.689501][ T4327] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.690592][ T4327] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.708921][ T4327] 8021q: adding VLAN 0 to HW filter on device bond0 [ 46.712988][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.714927][ T148] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.716736][ T148] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.719497][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 46.723800][ T4327] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.727131][ T851] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.729411][ T851] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.730514][ T851] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.734382][ T851] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 46.735957][ T851] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.737523][ T851] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.738715][ T851] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.744721][ T851] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 46.746299][ T851] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 46.752647][ T851] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 46.754479][ T851] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.756040][ T851] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 46.757530][ T851] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.761891][ T851] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 46.763409][ T851] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.766398][ T4327] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 46.769013][ T4327] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.772615][ T851] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 46.774274][ T851] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 46.775796][ T851] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.821710][ T4327] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 46.829592][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 46.830772][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 46.831966][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 46.833406][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 46.840310][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 46.841903][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 46.843914][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 46.845544][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 46.847765][ T4327] device veth0_vlan entered promiscuous mode [ 46.852616][ T4327] device veth1_vlan entered promiscuous mode [ 46.862476][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 46.863965][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 46.865314][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 46.866766][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 46.870577][ T4327] device veth0_macvtap entered promiscuous mode [ 46.872995][ T4327] device veth1_macvtap entered promiscuous mode [ 46.880008][ T4327] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 46.881234][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 46.882671][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 46.884200][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 46.885814][ T360] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 46.889541][ T4327] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 46.890801][ T851] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 46.892257][ T851] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 46.895176][ T4327] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.896613][ T4327] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.899289][ T4327] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.900560][ T4327] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 47.027251][ T4455] loop0: detected capacity change from 0 to 32768 [ 47.036810][ T4455] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4455) [ 47.045707][ T4455] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 47.047408][ T4455] BTRFS info (device loop0): using free space tree [ 47.051098][ T4455] BTRFS info (device loop0): has skinny extents [ 47.110602][ T4455] BTRFS info (device loop0): enabling ssd optimizations [ 47.123156][ T4455] FAULT_INJECTION: forcing a failure. [ 47.123156][ T4455] name failslab, interval 1, probability 0, space 0, times 1 [ 47.125203][ T4455] CPU: 0 PID: 4455 Comm: syz-executor.0 Not tainted syzkaller #0 [ 47.126419][ T4455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 47.127929][ T4455] Call trace: [ 47.128467][ T4455] dump_backtrace+0x0/0x43c [ 47.129101][ T4455] show_stack+0x2c/0x3c [ 47.129787][ T4455] __dump_stack+0x30/0x40 [ 47.130482][ T4455] dump_stack_lvl+0xf8/0x160 [ 47.131228][ T4455] dump_stack+0x1c/0x5c [ 47.131856][ T4455] should_fail+0x3c0/0x51c [ 47.132524][ T4455] __should_failslab+0xbc/0x10c [ 47.133340][ T4455] should_failslab+0x10/0x28 [ 47.134046][ T4455] slab_pre_alloc_hook+0x64/0xec [ 47.134880][ T4455] kmem_cache_alloc+0x94/0x3e4 [ 47.135630][ T4455] btrfs_add_delayed_data_ref+0x164/0xd0c [ 47.136565][ T4455] btrfs_free_extent+0x2d8/0x400 [ 47.137409][ T4455] btrfs_drop_extents+0x1144/0x21a4 [ 47.138222][ T4455] btrfs_replace_file_extents+0x328/0x1290 [ 47.139206][ T4455] __btrfs_prealloc_file_range+0x390/0xb88 [ 47.140094][ T4455] btrfs_prealloc_file_range+0x60/0x7c [ 47.140895][ T4455] btrfs_zero_range+0xc28/0xe94 [ 47.141601][ T4455] btrfs_fallocate+0x8b0/0x1614 [ 47.142322][ T4455] vfs_fallocate+0x4a4/0x5f4 [ 47.142999][ T4455] __arm64_sys_fallocate+0xc0/0x110 [ 47.143865][ T4455] invoke_syscall+0x98/0x2b8 [ 47.144577][ T4455] el0_svc_common+0x138/0x258 [ 47.145329][ T4455] do_el0_svc+0x58/0x14c [ 47.146058][ T4455] el0_svc+0x78/0x1e0 [ 47.146696][ T4455] el0t_64_sync_handler+0xcc/0xe4 [ 47.147513][ T4455] el0t_64_sync+0x1a0/0x1a4 [ 47.150556][ T4455] ------------[ cut here ]------------ [ 47.152037][ T4455] WARNING: CPU: 0 PID: 4455 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 47.153526][ T4455] Modules linked in: [ 47.154140][ T4455] CPU: 0 PID: 4455 Comm: syz-executor.0 Not tainted syzkaller #0 [ 47.155386][ T4455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 47.156799][ T4455] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.157898][ T4455] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 47.158759][ T4455] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 47.159650][ T4455] sp : ffff80001f8071c0 [ 47.160341][ T4455] x29: ffff80001f807480 x28: 00000000fffffff4 x27: ffff0000d4d73930 [ 47.161767][ T4455] x26: ffff0000cab3d880 x25: 0000000000011000 x24: dfff800000000000 [ 47.163171][ T4455] x23: 0000000000011000 x22: ffff80001f807300 x21: 0000000000000107 [ 47.164582][ T4455] x20: 1fffe0001bd78637 x19: ffff0000debc31b8 x18: 0000000000000001 [ 47.165983][ T4455] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 47.167359][ T4455] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 47.168681][ T4455] x11: 0000000000000000 x10: 0000000000000000 x9 : abde5ca8385c5700 [ 47.169964][ T4455] x8 : abde5ca8385c5700 x7 : 0000000000000001 x6 : 0000000000000001 [ 47.171204][ T4455] x5 : ffff80001f806ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 47.172515][ T4455] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 47.173772][ T4455] Call trace: [ 47.174296][ T4455] btrfs_drop_extents+0x1d88/0x21a4 [ 47.175125][ T4455] btrfs_replace_file_extents+0x328/0x1290 [ 47.176041][ T4455] __btrfs_prealloc_file_range+0x390/0xb88 [ 47.177079][ T4455] btrfs_prealloc_file_range+0x60/0x7c [ 47.177948][ T4455] btrfs_zero_range+0xc28/0xe94 [ 47.178687][ T4455] btrfs_fallocate+0x8b0/0x1614 [ 47.179485][ T4455] vfs_fallocate+0x4a4/0x5f4 [ 47.180181][ T4455] __arm64_sys_fallocate+0xc0/0x110 [ 47.181021][ T4455] invoke_syscall+0x98/0x2b8 [ 47.181743][ T4455] el0_svc_common+0x138/0x258 [ 47.182533][ T4455] do_el0_svc+0x58/0x14c [ 47.183257][ T4455] el0_svc+0x78/0x1e0 [ 47.183907][ T4455] el0t_64_sync_handler+0xcc/0xe4 [ 47.184727][ T4455] el0t_64_sync+0x1a0/0x1a4 [ 47.185484][ T4455] irq event stamp: 82890 [ 47.186159][ T4455] hardirqs last enabled at (82889): [] __up_console_sem+0xb4/0x100 [ 47.187669][ T4455] hardirqs last disabled at (82890): [] el1_dbg+0x24/0x80 [ 47.189141][ T4455] softirqs last enabled at (82866): [] handle_softirqs+0xa4c/0xbf0 [ 47.190685][ T4455] softirqs last disabled at (82661): [] __irq_exit_rcu+0x240/0x440 [ 47.192155][ T4455] ---[ end trace b8ea50274e5dfe32 ]--- [ 47.195714][ T4455] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 47.197243][ T4455] BTRFS info (device loop0): forced readonly [ 47.198640][ T4455] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 47.412096][ T4530] loop0: detected capacity change from 0 to 32768 [ 47.415770][ T4530] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4530) [ 47.423281][ T4530] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 47.424884][ T4530] BTRFS info (device loop0): using free space tree [ 47.425955][ T4530] BTRFS info (device loop0): has skinny extents [ 47.482256][ T4530] BTRFS info (device loop0): enabling ssd optimizations [ 47.486734][ T4530] FAULT_INJECTION: forcing a failure. [ 47.486734][ T4530] name failslab, interval 1, probability 0, space 0, times 0 [ 47.489433][ T4530] CPU: 1 PID: 4530 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 47.490743][ T4530] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 47.492293][ T4530] Call trace: [ 47.492813][ T4530] dump_backtrace+0x0/0x43c [ 47.493535][ T4530] show_stack+0x2c/0x3c [ 47.494096][ T4530] __dump_stack+0x30/0x40 [ 47.494720][ T4530] dump_stack_lvl+0xf8/0x160 [ 47.495455][ T4530] dump_stack+0x1c/0x5c [ 47.496156][ T4530] should_fail+0x3c0/0x51c [ 47.496887][ T4530] __should_failslab+0xbc/0x10c [ 47.497681][ T4530] should_failslab+0x10/0x28 [ 47.498345][ T4530] slab_pre_alloc_hook+0x64/0xec [ 47.499064][ T4530] kmem_cache_alloc+0x94/0x3e4 [ 47.499770][ T4530] alloc_extent_map+0x28/0x128 [ 47.500455][ T4530] btrfs_drop_extent_cache+0x160/0xdec [ 47.501295][ T4530] btrfs_drop_extents+0x2c8/0x21a4 [ 47.502035][ T4530] btrfs_replace_file_extents+0x328/0x1290 [ 47.502856][ T4530] __btrfs_prealloc_file_range+0x390/0xb88 [ 47.503743][ T4530] btrfs_prealloc_file_range+0x60/0x7c [ 47.504535][ T4530] btrfs_zero_range+0xc28/0xe94 [ 47.505237][ T4530] btrfs_fallocate+0x8b0/0x1614 [ 47.505966][ T4530] vfs_fallocate+0x4a4/0x5f4 [ 47.506602][ T4530] __arm64_sys_fallocate+0xc0/0x110 [ 47.507340][ T4530] invoke_syscall+0x98/0x2b8 [ 47.508039][ T4530] el0_svc_common+0x138/0x258 [ 47.508789][ T4530] do_el0_svc+0x58/0x14c [ 47.509501][ T4530] el0_svc+0x78/0x1e0 [ 47.510143][ T4530] el0t_64_sync_handler+0xcc/0xe4 [ 47.510899][ T4530] el0t_64_sync+0x1a0/0x1a4 [ 47.723944][ T4588] loop0: detected capacity change from 0 to 32768 [ 47.730103][ T4588] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4588) [ 47.736547][ T4588] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 47.738530][ T4588] BTRFS info (device loop0): using free space tree [ 47.739576][ T4588] BTRFS info (device loop0): has skinny extents [ 47.758673][ T4577] Bluetooth: hci0: command 0x0409 tx timeout [ 47.781233][ T4588] BTRFS info (device loop0): enabling ssd optimizations [ 47.792164][ T4588] FAULT_INJECTION: forcing a failure. [ 47.792164][ T4588] name failslab, interval 1, probability 0, space 0, times 0 [ 47.794226][ T4588] CPU: 0 PID: 4588 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 47.795645][ T4588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 47.797333][ T4588] Call trace: [ 47.797855][ T4588] dump_backtrace+0x0/0x43c [ 47.798569][ T4588] show_stack+0x2c/0x3c [ 47.799272][ T4588] __dump_stack+0x30/0x40 [ 47.800015][ T4588] dump_stack_lvl+0xf8/0x160 [ 47.800730][ T4588] dump_stack+0x1c/0x5c [ 47.801454][ T4588] should_fail+0x3c0/0x51c [ 47.802255][ T4588] __should_failslab+0xbc/0x10c [ 47.803079][ T4588] should_failslab+0x10/0x28 [ 47.803813][ T4588] slab_pre_alloc_hook+0x64/0xec [ 47.804614][ T4588] kmem_cache_alloc+0x94/0x3e4 [ 47.805422][ T4588] btrfs_add_delayed_data_ref+0x164/0xd0c [ 47.806367][ T4588] btrfs_free_extent+0x2d8/0x400 [ 47.807194][ T4588] btrfs_drop_extents+0x1144/0x21a4 [ 47.807983][ T4588] btrfs_replace_file_extents+0x328/0x1290 [ 47.808885][ T4588] __btrfs_prealloc_file_range+0x390/0xb88 [ 47.809797][ T4588] btrfs_prealloc_file_range+0x60/0x7c [ 47.810668][ T4588] btrfs_zero_range+0xc28/0xe94 [ 47.811437][ T4588] btrfs_fallocate+0x8b0/0x1614 [ 47.812258][ T4588] vfs_fallocate+0x4a4/0x5f4 [ 47.813016][ T4588] __arm64_sys_fallocate+0xc0/0x110 [ 47.813838][ T4588] invoke_syscall+0x98/0x2b8 [ 47.814580][ T4588] el0_svc_common+0x138/0x258 [ 47.815361][ T4588] do_el0_svc+0x58/0x14c [ 47.816060][ T4588] el0_svc+0x78/0x1e0 [ 47.816706][ T4588] el0t_64_sync_handler+0xcc/0xe4 [ 47.817519][ T4588] el0t_64_sync+0x1a0/0x1a4 [ 47.835199][ T4588] ------------[ cut here ]------------ [ 47.836122][ T4588] WARNING: CPU: 0 PID: 4588 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 47.837559][ T4588] Modules linked in: [ 47.838191][ T4588] CPU: 0 PID: 4588 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 47.839577][ T4588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 47.841064][ T4588] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.842243][ T4588] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 47.843149][ T4588] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 47.844032][ T4588] sp : ffff80001f9f71c0 [ 47.844681][ T4588] x29: ffff80001f9f7480 x28: 00000000fffffff4 x27: ffff0000d40805d0 [ 47.846064][ T4588] x26: ffff0000d13e37d0 x25: 0000000000011000 x24: dfff800000000000 [ 47.847441][ T4588] x23: 0000000000011000 x22: ffff80001f9f7300 x21: 0000000000000107 [ 47.848738][ T4588] x20: 1fffe0001bd78679 x19: ffff0000debc33c8 x18: 0000000000000001 [ 47.850179][ T4588] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 47.851522][ T4588] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 47.852783][ T4588] x11: 0000000000000000 x10: 0000000000000000 x9 : 8a4223ce3d883400 [ 47.854086][ T4588] x8 : 8a4223ce3d883400 x7 : 0000000000000001 x6 : 0000000000000001 [ 47.855437][ T4588] x5 : ffff80001f9f6ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 47.856817][ T4588] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 47.858111][ T4588] Call trace: [ 47.858642][ T4588] btrfs_drop_extents+0x1d88/0x21a4 [ 47.859453][ T4588] btrfs_replace_file_extents+0x328/0x1290 [ 47.860459][ T4588] __btrfs_prealloc_file_range+0x390/0xb88 [ 47.861408][ T4588] btrfs_prealloc_file_range+0x60/0x7c [ 47.862299][ T4588] btrfs_zero_range+0xc28/0xe94 [ 47.863112][ T4588] btrfs_fallocate+0x8b0/0x1614 [ 47.863864][ T4588] vfs_fallocate+0x4a4/0x5f4 [ 47.864565][ T4588] __arm64_sys_fallocate+0xc0/0x110 [ 47.865367][ T4588] invoke_syscall+0x98/0x2b8 [ 47.866082][ T4588] el0_svc_common+0x138/0x258 [ 47.866836][ T4588] do_el0_svc+0x58/0x14c [ 47.867529][ T4588] el0_svc+0x78/0x1e0 [ 47.868218][ T4588] el0t_64_sync_handler+0xcc/0xe4 [ 47.869065][ T4588] el0t_64_sync+0x1a0/0x1a4 [ 47.869807][ T4588] irq event stamp: 80284 [ 47.870495][ T4588] hardirqs last enabled at (80283): [] __up_console_sem+0xb4/0x100 [ 47.872012][ T4588] hardirqs last disabled at (80284): [] el1_dbg+0x24/0x80 [ 47.873469][ T4588] softirqs last enabled at (80264): [] handle_softirqs+0xa4c/0xbf0 [ 47.875064][ T4588] softirqs last disabled at (80151): [] __irq_exit_rcu+0x240/0x440 [ 47.876550][ T4588] ---[ end trace b8ea50274e5dfe33 ]--- [ 47.880569][ T4588] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 47.882149][ T4588] BTRFS info (device loop0): forced readonly [ 47.883071][ T4588] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 48.071375][ T4656] loop0: detected capacity change from 0 to 32768 [ 48.074082][ T4656] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4656) [ 48.077771][ T4656] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 48.080158][ T4656] BTRFS info (device loop0): using free space tree [ 48.081164][ T4656] BTRFS info (device loop0): has skinny extents [ 48.121513][ T4656] BTRFS info (device loop0): enabling ssd optimizations [ 48.130795][ T4656] FAULT_INJECTION: forcing a failure. [ 48.130795][ T4656] name failslab, interval 1, probability 0, space 0, times 0 [ 48.132926][ T4656] CPU: 0 PID: 4656 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.134246][ T4656] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 48.135813][ T4656] Call trace: [ 48.136312][ T4656] dump_backtrace+0x0/0x43c [ 48.136980][ T4656] show_stack+0x2c/0x3c [ 48.137586][ T4656] __dump_stack+0x30/0x40 [ 48.138260][ T4656] dump_stack_lvl+0xf8/0x160 [ 48.138935][ T4656] dump_stack+0x1c/0x5c [ 48.139606][ T4656] should_fail+0x3c0/0x51c [ 48.140324][ T4656] __should_failslab+0xbc/0x10c [ 48.141108][ T4656] should_failslab+0x10/0x28 [ 48.141845][ T4656] slab_pre_alloc_hook+0x64/0xec [ 48.142643][ T4656] kmem_cache_alloc+0x94/0x3e4 [ 48.143460][ T4656] btrfs_add_delayed_data_ref+0x164/0xd0c [ 48.144394][ T4656] btrfs_free_extent+0x2d8/0x400 [ 48.145201][ T4656] btrfs_drop_extents+0x1144/0x21a4 [ 48.146091][ T4656] btrfs_replace_file_extents+0x328/0x1290 [ 48.147050][ T4656] __btrfs_prealloc_file_range+0x390/0xb88 [ 48.148014][ T4656] btrfs_prealloc_file_range+0x60/0x7c [ 48.148902][ T4656] btrfs_zero_range+0xc28/0xe94 [ 48.149735][ T4656] btrfs_fallocate+0x8b0/0x1614 [ 48.150508][ T4656] vfs_fallocate+0x4a4/0x5f4 [ 48.151286][ T4656] __arm64_sys_fallocate+0xc0/0x110 [ 48.152077][ T4656] invoke_syscall+0x98/0x2b8 [ 48.152828][ T4656] el0_svc_common+0x138/0x258 [ 48.153570][ T4656] do_el0_svc+0x58/0x14c [ 48.154274][ T4656] el0_svc+0x78/0x1e0 [ 48.154940][ T4656] el0t_64_sync_handler+0xcc/0xe4 [ 48.155712][ T4656] el0t_64_sync+0x1a0/0x1a4 [ 48.180960][ T4656] ------------[ cut here ]------------ [ 48.181936][ T4656] WARNING: CPU: 0 PID: 4656 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 48.183448][ T4656] Modules linked in: [ 48.184094][ T4656] CPU: 0 PID: 4656 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.185556][ T4656] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 48.187095][ T4656] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.188216][ T4656] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 48.189067][ T4656] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 48.189852][ T4656] sp : ffff80001fc771c0 [ 48.190452][ T4656] x29: ffff80001fc77480 x28: 00000000fffffff4 x27: ffff0000d4081170 [ 48.191757][ T4656] x26: ffff0000c97f6670 x25: 0000000000011000 x24: dfff800000000000 [ 48.193124][ T4656] x23: 0000000000011000 x22: ffff80001fc77300 x21: 0000000000000107 [ 48.194464][ T4656] x20: 1fffe0001bd786bb x19: ffff0000debc35d8 x18: 0000000000000001 [ 48.195785][ T4656] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 48.197104][ T4656] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 48.198373][ T4656] x11: 0000000000000000 x10: 0000000000000000 x9 : afa10fc65446b400 [ 48.199715][ T4656] x8 : afa10fc65446b400 x7 : 0000000000000001 x6 : 0000000000000001 [ 48.200986][ T4656] x5 : ffff80001fc76ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 48.202212][ T4656] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 48.203535][ T4656] Call trace: [ 48.204062][ T4656] btrfs_drop_extents+0x1d88/0x21a4 [ 48.204954][ T4656] btrfs_replace_file_extents+0x328/0x1290 [ 48.205896][ T4656] __btrfs_prealloc_file_range+0x390/0xb88 [ 48.206813][ T4656] btrfs_prealloc_file_range+0x60/0x7c [ 48.207659][ T4656] btrfs_zero_range+0xc28/0xe94 [ 48.208463][ T4656] btrfs_fallocate+0x8b0/0x1614 [ 48.209257][ T4656] vfs_fallocate+0x4a4/0x5f4 [ 48.210058][ T4656] __arm64_sys_fallocate+0xc0/0x110 [ 48.210907][ T4656] invoke_syscall+0x98/0x2b8 [ 48.211729][ T4656] el0_svc_common+0x138/0x258 [ 48.212422][ T4656] do_el0_svc+0x58/0x14c [ 48.213095][ T4656] el0_svc+0x78/0x1e0 [ 48.213733][ T4656] el0t_64_sync_handler+0xcc/0xe4 [ 48.214625][ T4656] el0t_64_sync+0x1a0/0x1a4 [ 48.215382][ T4656] irq event stamp: 79738 [ 48.216010][ T4656] hardirqs last enabled at (79737): [] __up_console_sem+0xb4/0x100 [ 48.217484][ T4656] hardirqs last disabled at (79738): [] el1_dbg+0x24/0x80 [ 48.218919][ T4656] softirqs last enabled at (79718): [] handle_softirqs+0xa4c/0xbf0 [ 48.220333][ T4656] softirqs last disabled at (79681): [] __irq_exit_rcu+0x240/0x440 [ 48.221819][ T4656] ---[ end trace b8ea50274e5dfe34 ]--- [ 48.225903][ T4656] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 48.227523][ T4656] BTRFS info (device loop0): forced readonly [ 48.228794][ T4656] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 48.453569][ T4719] loop0: detected capacity change from 0 to 32768 [ 48.464957][ T4719] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4719) [ 48.475074][ T4719] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 48.476707][ T4719] BTRFS info (device loop0): using free space tree [ 48.477699][ T4719] BTRFS info (device loop0): has skinny extents [ 48.544391][ T4719] BTRFS info (device loop0): enabling ssd optimizations [ 48.560430][ T4719] FAULT_INJECTION: forcing a failure. [ 48.560430][ T4719] name failslab, interval 1, probability 0, space 0, times 0 [ 48.562522][ T4719] CPU: 0 PID: 4719 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.563969][ T4719] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 48.565530][ T4719] Call trace: [ 48.566049][ T4719] dump_backtrace+0x0/0x43c [ 48.566763][ T4719] show_stack+0x2c/0x3c [ 48.567366][ T4719] __dump_stack+0x30/0x40 [ 48.568023][ T4719] dump_stack_lvl+0xf8/0x160 [ 48.568790][ T4719] dump_stack+0x1c/0x5c [ 48.569470][ T4719] should_fail+0x3c0/0x51c [ 48.570201][ T4719] __should_failslab+0xbc/0x10c [ 48.571009][ T4719] should_failslab+0x10/0x28 [ 48.571753][ T4719] slab_pre_alloc_hook+0x64/0xec [ 48.572532][ T4719] kmem_cache_alloc+0x94/0x3e4 [ 48.573248][ T4719] alloc_extent_map+0x28/0x128 [ 48.573994][ T4719] btrfs_drop_extent_cache+0x160/0xdec [ 48.574848][ T4719] btrfs_drop_extents+0x2c8/0x21a4 [ 48.575669][ T4719] btrfs_replace_file_extents+0x328/0x1290 [ 48.576541][ T4719] __btrfs_prealloc_file_range+0x390/0xb88 [ 48.577475][ T4719] btrfs_prealloc_file_range+0x60/0x7c [ 48.578333][ T4719] btrfs_zero_range+0xc28/0xe94 [ 48.579174][ T4719] btrfs_fallocate+0x8b0/0x1614 [ 48.580005][ T4719] vfs_fallocate+0x4a4/0x5f4 [ 48.580797][ T4719] __arm64_sys_fallocate+0xc0/0x110 [ 48.581637][ T4719] invoke_syscall+0x98/0x2b8 [ 48.582406][ T4719] el0_svc_common+0x138/0x258 [ 48.583159][ T4719] do_el0_svc+0x58/0x14c [ 48.583802][ T4719] el0_svc+0x78/0x1e0 [ 48.584448][ T4719] el0t_64_sync_handler+0xcc/0xe4 [ 48.585284][ T4719] el0t_64_sync+0x1a0/0x1a4 [ 48.781301][ T4774] loop0: detected capacity change from 0 to 32768 [ 48.785790][ T4774] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4774) [ 48.790948][ T4774] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 48.792573][ T4774] BTRFS info (device loop0): using free space tree [ 48.793697][ T4774] BTRFS info (device loop0): has skinny extents [ 48.808384][ T4774] BTRFS info (device loop0): enabling ssd optimizations [ 48.812224][ T4774] FAULT_INJECTION: forcing a failure. [ 48.812224][ T4774] name failslab, interval 1, probability 0, space 0, times 0 [ 48.814359][ T4774] CPU: 1 PID: 4774 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.815732][ T4774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 48.817340][ T4774] Call trace: [ 48.817860][ T4774] dump_backtrace+0x0/0x43c [ 48.818596][ T4774] show_stack+0x2c/0x3c [ 48.819272][ T4774] __dump_stack+0x30/0x40 [ 48.819928][ T4774] dump_stack_lvl+0xf8/0x160 [ 48.820616][ T4774] dump_stack+0x1c/0x5c [ 48.821279][ T4774] should_fail+0x3c0/0x51c [ 48.821932][ T4774] __should_failslab+0xbc/0x10c [ 48.822664][ T4774] should_failslab+0x10/0x28 [ 48.823339][ T4774] slab_pre_alloc_hook+0x64/0xec [ 48.824086][ T4774] kmem_cache_alloc+0x94/0x3e4 [ 48.824848][ T4774] btrfs_add_delayed_data_ref+0x164/0xd0c [ 48.825731][ T4774] btrfs_free_extent+0x2d8/0x400 [ 48.826538][ T4774] btrfs_drop_extents+0x1144/0x21a4 [ 48.827327][ T4774] btrfs_replace_file_extents+0x328/0x1290 [ 48.828185][ T4774] __btrfs_prealloc_file_range+0x390/0xb88 [ 48.829090][ T4774] btrfs_prealloc_file_range+0x60/0x7c [ 48.829953][ T4774] btrfs_zero_range+0xc28/0xe94 [ 48.830794][ T4774] btrfs_fallocate+0x8b0/0x1614 [ 48.831638][ T4774] vfs_fallocate+0x4a4/0x5f4 [ 48.832401][ T4774] __arm64_sys_fallocate+0xc0/0x110 [ 48.833291][ T4774] invoke_syscall+0x98/0x2b8 [ 48.834047][ T4774] el0_svc_common+0x138/0x258 [ 48.834838][ T4774] do_el0_svc+0x58/0x14c [ 48.835556][ T4774] el0_svc+0x78/0x1e0 [ 48.836196][ T4774] el0t_64_sync_handler+0xcc/0xe4 [ 48.836951][ T4774] el0t_64_sync+0x1a0/0x1a4 [ 48.840101][ T4774] ------------[ cut here ]------------ [ 48.841022][ T4774] WARNING: CPU: 1 PID: 4774 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 48.842329][ T4774] Modules linked in: [ 48.842862][ T4774] CPU: 1 PID: 4774 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.844330][ T4774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 48.846021][ T4774] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.847278][ T4774] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 48.848205][ T4774] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 48.849068][ T4774] sp : ffff80001be771c0 [ 48.849719][ T4774] x29: ffff80001be77480 x28: 00000000fffffff4 x27: ffff0000cf3267c0 [ 48.851073][ T4774] x26: ffff0000d9dcb250 x25: 0000000000011000 x24: dfff800000000000 [ 48.852364][ T4774] x23: 0000000000011000 x22: ffff80001be77300 x21: 0000000000000107 [ 48.853655][ T4774] x20: 1fffe0001bd2eed1 x19: ffff0000de977688 x18: 0000000000000001 [ 48.854928][ T4774] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 48.856296][ T4774] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 48.857626][ T4774] x11: 0000000000000000 x10: 0000000000000000 x9 : cea74806627cf300 [ 48.858929][ T4774] x8 : cea74806627cf300 x7 : 0000000000000001 x6 : 0000000000000001 [ 48.860220][ T4774] x5 : ffff80001be76ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 48.861517][ T4774] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 48.862799][ T4774] Call trace: [ 48.863281][ T4774] btrfs_drop_extents+0x1d88/0x21a4 [ 48.864075][ T4774] btrfs_replace_file_extents+0x328/0x1290 [ 48.864943][ T4774] __btrfs_prealloc_file_range+0x390/0xb88 [ 48.865819][ T4774] btrfs_prealloc_file_range+0x60/0x7c [ 48.866636][ T4774] btrfs_zero_range+0xc28/0xe94 [ 48.867412][ T4774] btrfs_fallocate+0x8b0/0x1614 [ 48.868187][ T4774] vfs_fallocate+0x4a4/0x5f4 [ 48.868869][ T4774] __arm64_sys_fallocate+0xc0/0x110 [ 48.869681][ T4774] invoke_syscall+0x98/0x2b8 [ 48.870352][ T4774] el0_svc_common+0x138/0x258 [ 48.871059][ T4774] do_el0_svc+0x58/0x14c [ 48.871692][ T4774] el0_svc+0x78/0x1e0 [ 48.872300][ T4774] el0t_64_sync_handler+0xcc/0xe4 [ 48.873062][ T4774] el0t_64_sync+0x1a0/0x1a4 [ 48.873770][ T4774] irq event stamp: 80004 [ 48.874437][ T4774] hardirqs last enabled at (80003): [] __up_console_sem+0xb4/0x100 [ 48.875965][ T4774] hardirqs last disabled at (80004): [] el1_dbg+0x24/0x80 [ 48.877387][ T4774] softirqs last enabled at (79984): [] handle_softirqs+0xa4c/0xbf0 [ 48.878913][ T4774] softirqs last disabled at (79831): [] __irq_exit_rcu+0x240/0x440 [ 48.880449][ T4774] ---[ end trace b8ea50274e5dfe35 ]--- [ 48.882642][ T4774] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 48.884023][ T4774] BTRFS info (device loop0): forced readonly [ 48.884916][ T4774] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 49.076478][ T4802] loop0: detected capacity change from 0 to 32768 [ 49.079507][ T4802] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4802) [ 49.083732][ T4802] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 49.085945][ T4802] BTRFS info (device loop0): using free space tree [ 49.087079][ T4802] BTRFS info (device loop0): has skinny extents [ 49.102079][ T4802] BTRFS info (device loop0): enabling ssd optimizations [ 49.105872][ T4802] FAULT_INJECTION: forcing a failure. [ 49.105872][ T4802] name failslab, interval 1, probability 0, space 0, times 0 [ 49.107907][ T4802] CPU: 1 PID: 4802 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.109283][ T4802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 49.110803][ T4802] Call trace: [ 49.111305][ T4802] dump_backtrace+0x0/0x43c [ 49.112072][ T4802] show_stack+0x2c/0x3c [ 49.112695][ T4802] __dump_stack+0x30/0x40 [ 49.113400][ T4802] dump_stack_lvl+0xf8/0x160 [ 49.114044][ T4802] dump_stack+0x1c/0x5c [ 49.114702][ T4802] should_fail+0x3c0/0x51c [ 49.115383][ T4802] __should_failslab+0xbc/0x10c [ 49.116129][ T4802] should_failslab+0x10/0x28 [ 49.116845][ T4802] slab_pre_alloc_hook+0x64/0xec [ 49.117683][ T4802] kmem_cache_alloc+0x94/0x3e4 [ 49.118490][ T4802] btrfs_add_delayed_data_ref+0x164/0xd0c [ 49.119386][ T4802] btrfs_free_extent+0x2d8/0x400 [ 49.120171][ T4802] btrfs_drop_extents+0x1144/0x21a4 [ 49.120972][ T4802] btrfs_replace_file_extents+0x328/0x1290 [ 49.121896][ T4802] __btrfs_prealloc_file_range+0x390/0xb88 [ 49.122817][ T4802] btrfs_prealloc_file_range+0x60/0x7c [ 49.123644][ T4802] btrfs_zero_range+0xc28/0xe94 [ 49.124412][ T4802] btrfs_fallocate+0x8b0/0x1614 [ 49.125131][ T4802] vfs_fallocate+0x4a4/0x5f4 [ 49.125831][ T4802] __arm64_sys_fallocate+0xc0/0x110 [ 49.126610][ T4802] invoke_syscall+0x98/0x2b8 [ 49.127375][ T4802] el0_svc_common+0x138/0x258 [ 49.128096][ T4802] do_el0_svc+0x58/0x14c [ 49.128774][ T4802] el0_svc+0x78/0x1e0 [ 49.129404][ T4802] el0t_64_sync_handler+0xcc/0xe4 [ 49.130153][ T4802] el0t_64_sync+0x1a0/0x1a4 [ 49.132061][ T4802] ------------[ cut here ]------------ [ 49.133039][ T4802] WARNING: CPU: 1 PID: 4802 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 49.134473][ T4802] Modules linked in: [ 49.135053][ T4802] CPU: 1 PID: 4802 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.136486][ T4802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 49.138104][ T4802] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.139438][ T4802] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 49.140338][ T4802] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 49.141208][ T4802] sp : ffff80001fc671c0 [ 49.141840][ T4802] x29: ffff80001fc67480 x28: 00000000fffffff4 x27: ffff0000c7a005d0 [ 49.143158][ T4802] x26: ffff0000d7a91b40 x25: 0000000000011000 x24: dfff800000000000 [ 49.144500][ T4802] x23: 0000000000011000 x22: ffff80001fc67300 x21: 0000000000000107 [ 49.145839][ T4802] x20: 1fffe0001bd2ef13 x19: ffff0000de977898 x18: 0000000000000001 [ 49.147160][ T4802] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 49.148492][ T4802] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 49.149782][ T4802] x11: 0000000000000000 x10: 0000000000000000 x9 : 10538a74dc042f00 [ 49.151062][ T4802] x8 : 10538a74dc042f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 49.152375][ T4802] x5 : ffff80001fc66ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 49.153656][ T4802] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 49.154986][ T4802] Call trace: [ 49.155544][ T4802] btrfs_drop_extents+0x1d88/0x21a4 [ 49.156430][ T4802] btrfs_replace_file_extents+0x328/0x1290 [ 49.157333][ T4802] __btrfs_prealloc_file_range+0x390/0xb88 [ 49.158253][ T4802] btrfs_prealloc_file_range+0x60/0x7c [ 49.159138][ T4802] btrfs_zero_range+0xc28/0xe94 [ 49.159842][ T4802] btrfs_fallocate+0x8b0/0x1614 [ 49.160538][ T4802] vfs_fallocate+0x4a4/0x5f4 [ 49.161328][ T4802] __arm64_sys_fallocate+0xc0/0x110 [ 49.162139][ T4802] invoke_syscall+0x98/0x2b8 [ 49.162851][ T4802] el0_svc_common+0x138/0x258 [ 49.163637][ T4802] do_el0_svc+0x58/0x14c [ 49.164284][ T4802] el0_svc+0x78/0x1e0 [ 49.164911][ T4802] el0t_64_sync_handler+0xcc/0xe4 [ 49.165691][ T4802] el0t_64_sync+0x1a0/0x1a4 [ 49.166375][ T4802] irq event stamp: 80366 [ 49.167068][ T4802] hardirqs last enabled at (80365): [] __up_console_sem+0xb4/0x100 [ 49.168538][ T4802] hardirqs last disabled at (80366): [] el1_dbg+0x24/0x80 [ 49.169783][ T4802] softirqs last enabled at (80346): [] handle_softirqs+0xa4c/0xbf0 [ 49.171074][ T4802] softirqs last disabled at (80263): [] __irq_exit_rcu+0x240/0x440 [ 49.172488][ T4802] ---[ end trace b8ea50274e5dfe36 ]--- [ 49.174375][ T4802] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 49.175992][ T4802] BTRFS info (device loop0): forced readonly [ 49.177011][ T4802] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 49.351744][ T4823] loop0: detected capacity change from 0 to 32768 [ 49.354374][ T4823] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4823) [ 49.359368][ T4823] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 49.361167][ T4823] BTRFS info (device loop0): using free space tree [ 49.362360][ T4823] BTRFS info (device loop0): has skinny extents [ 49.370268][ T4823] BTRFS info (device loop0): enabling ssd optimizations [ 49.374251][ T4823] FAULT_INJECTION: forcing a failure. [ 49.374251][ T4823] name failslab, interval 1, probability 0, space 0, times 0 [ 49.376214][ T4823] CPU: 0 PID: 4823 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.377650][ T4823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 49.379376][ T4823] Call trace: [ 49.379885][ T4823] dump_backtrace+0x0/0x43c [ 49.380623][ T4823] show_stack+0x2c/0x3c [ 49.381277][ T4823] __dump_stack+0x30/0x40 [ 49.381979][ T4823] dump_stack_lvl+0xf8/0x160 [ 49.382702][ T4823] dump_stack+0x1c/0x5c [ 49.383365][ T4823] should_fail+0x3c0/0x51c [ 49.384142][ T4823] __should_failslab+0xbc/0x10c [ 49.384981][ T4823] should_failslab+0x10/0x28 [ 49.385736][ T4823] slab_pre_alloc_hook+0x64/0xec [ 49.386541][ T4823] kmem_cache_alloc+0x94/0x3e4 [ 49.387300][ T4823] btrfs_add_delayed_data_ref+0x164/0xd0c [ 49.388187][ T4823] btrfs_free_extent+0x2d8/0x400 [ 49.389006][ T4823] btrfs_drop_extents+0x1144/0x21a4 [ 49.389888][ T4823] btrfs_replace_file_extents+0x328/0x1290 [ 49.390876][ T4823] __btrfs_prealloc_file_range+0x390/0xb88 [ 49.391831][ T4823] btrfs_prealloc_file_range+0x60/0x7c [ 49.392724][ T4823] btrfs_zero_range+0xc28/0xe94 [ 49.393464][ T4823] btrfs_fallocate+0x8b0/0x1614 [ 49.394325][ T4823] vfs_fallocate+0x4a4/0x5f4 [ 49.395051][ T4823] __arm64_sys_fallocate+0xc0/0x110 [ 49.395878][ T4823] invoke_syscall+0x98/0x2b8 [ 49.396602][ T4823] el0_svc_common+0x138/0x258 [ 49.397320][ T4823] do_el0_svc+0x58/0x14c [ 49.398045][ T4823] el0_svc+0x78/0x1e0 [ 49.398730][ T4823] el0t_64_sync_handler+0xcc/0xe4 [ 49.399564][ T4823] el0t_64_sync+0x1a0/0x1a4 [ 49.401053][ T4823] ------------[ cut here ]------------ [ 49.402515][ T4823] WARNING: CPU: 0 PID: 4823 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 49.403981][ T4823] Modules linked in: [ 49.404608][ T4823] CPU: 0 PID: 4823 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.406070][ T4823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 49.407775][ T4823] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.409040][ T4823] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 49.409931][ T4823] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 49.410823][ T4823] sp : ffff80001fe971c0 [ 49.411502][ T4823] x29: ffff80001fe97480 x28: 00000000fffffff4 x27: ffff0000dbdc0d90 [ 49.412908][ T4823] x26: ffff0000ce283b40 x25: 0000000000011000 x24: dfff800000000000 [ 49.414180][ T4823] x23: 0000000000011000 x22: ffff80001fe97300 x21: 0000000000000107 [ 49.415484][ T4823] x20: 1fffe0001bd7873f x19: ffff0000debc39f8 x18: 0000000000000001 [ 49.416787][ T4823] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 49.418012][ T4823] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 49.419311][ T4823] x11: 0000000000000000 x10: 0000000000000000 x9 : 9d4ddddd72022c00 [ 49.420569][ T4823] x8 : 9d4ddddd72022c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 49.421901][ T4823] x5 : ffff80001fe96ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 49.423083][ T4823] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 49.424303][ T4823] Call trace: [ 49.424823][ T4823] btrfs_drop_extents+0x1d88/0x21a4 [ 49.425680][ T4823] btrfs_replace_file_extents+0x328/0x1290 [ 49.426609][ T4823] __btrfs_prealloc_file_range+0x390/0xb88 [ 49.427539][ T4823] btrfs_prealloc_file_range+0x60/0x7c [ 49.428430][ T4823] btrfs_zero_range+0xc28/0xe94 [ 49.429239][ T4823] btrfs_fallocate+0x8b0/0x1614 [ 49.430049][ T4823] vfs_fallocate+0x4a4/0x5f4 [ 49.430798][ T4823] __arm64_sys_fallocate+0xc0/0x110 [ 49.431660][ T4823] invoke_syscall+0x98/0x2b8 [ 49.432412][ T4823] el0_svc_common+0x138/0x258 [ 49.433108][ T4823] do_el0_svc+0x58/0x14c [ 49.433752][ T4823] el0_svc+0x78/0x1e0 [ 49.434338][ T4823] el0t_64_sync_handler+0xcc/0xe4 [ 49.435131][ T4823] el0t_64_sync+0x1a0/0x1a4 [ 49.435864][ T4823] irq event stamp: 80038 [ 49.436541][ T4823] hardirqs last enabled at (80037): [] __up_console_sem+0xb4/0x100 [ 49.438075][ T4823] hardirqs last disabled at (80038): [] el1_dbg+0x24/0x80 [ 49.439382][ T4823] softirqs last enabled at (80014): [] handle_softirqs+0xa4c/0xbf0 [ 49.440957][ T4823] softirqs last disabled at (79909): [] __irq_exit_rcu+0x240/0x440 [ 49.442459][ T4823] ---[ end trace b8ea50274e5dfe37 ]--- [ 49.443476][ T4823] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 49.444871][ T4823] BTRFS info (device loop0): forced readonly [ 49.445762][ T4823] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 49.656550][ T4844] loop0: detected capacity change from 0 to 32768 [ 49.659600][ T4844] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4844) [ 49.665275][ T4844] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 49.666736][ T4844] BTRFS info (device loop0): using free space tree [ 49.667775][ T4844] BTRFS info (device loop0): has skinny extents [ 49.675982][ T4844] BTRFS info (device loop0): enabling ssd optimizations [ 49.681288][ T4844] FAULT_INJECTION: forcing a failure. [ 49.681288][ T4844] name failslab, interval 1, probability 0, space 0, times 0 [ 49.683261][ T4844] CPU: 1 PID: 4844 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.684669][ T4844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 49.686245][ T4844] Call trace: [ 49.686743][ T4844] dump_backtrace+0x0/0x43c [ 49.687436][ T4844] show_stack+0x2c/0x3c [ 49.688078][ T4844] __dump_stack+0x30/0x40 [ 49.688821][ T4844] dump_stack_lvl+0xf8/0x160 [ 49.689565][ T4844] dump_stack+0x1c/0x5c [ 49.690208][ T4844] should_fail+0x3c0/0x51c [ 49.690803][ T4844] __should_failslab+0xbc/0x10c [ 49.691527][ T4844] should_failslab+0x10/0x28 [ 49.692216][ T4844] slab_pre_alloc_hook+0x64/0xec [ 49.692948][ T4844] kmem_cache_alloc+0x94/0x3e4 [ 49.693622][ T4844] btrfs_add_delayed_data_ref+0x164/0xd0c [ 49.694479][ T4844] btrfs_free_extent+0x2d8/0x400 [ 49.695270][ T4844] btrfs_drop_extents+0x1144/0x21a4 [ 49.696074][ T4844] btrfs_replace_file_extents+0x328/0x1290 [ 49.696942][ T4844] __btrfs_prealloc_file_range+0x390/0xb88 [ 49.697819][ T4844] btrfs_prealloc_file_range+0x60/0x7c [ 49.698688][ T4844] btrfs_zero_range+0xc28/0xe94 [ 49.699475][ T4844] btrfs_fallocate+0x8b0/0x1614 [ 49.700243][ T4844] vfs_fallocate+0x4a4/0x5f4 [ 49.700949][ T4844] __arm64_sys_fallocate+0xc0/0x110 [ 49.701824][ T4844] invoke_syscall+0x98/0x2b8 [ 49.702602][ T4844] el0_svc_common+0x138/0x258 [ 49.703367][ T4844] do_el0_svc+0x58/0x14c [ 49.704093][ T4844] el0_svc+0x78/0x1e0 [ 49.704719][ T4844] el0t_64_sync_handler+0xcc/0xe4 [ 49.705495][ T4844] el0t_64_sync+0x1a0/0x1a4 [ 49.707545][ T4844] ------------[ cut here ]------------ [ 49.708751][ T4844] WARNING: CPU: 1 PID: 4844 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 49.710170][ T4844] Modules linked in: [ 49.710734][ T4844] CPU: 1 PID: 4844 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.712133][ T4844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 49.713700][ T4844] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.714806][ T4844] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 49.715603][ T4844] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 49.716430][ T4844] sp : ffff80001be771c0 [ 49.717022][ T4844] x29: ffff80001be77480 x28: 00000000fffffff4 x27: ffff0000d5fa83e0 [ 49.718258][ T4844] x26: ffff0000db73a510 x25: 0000000000011000 x24: dfff800000000000 [ 49.719524][ T4844] x23: 0000000000011000 x22: ffff80001be77300 x21: 0000000000000107 [ 49.720850][ T4844] x20: 1fffe0001bd2ef55 x19: ffff0000de977aa8 x18: 0000000000000001 [ 49.722083][ T4844] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 49.723431][ T4844] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 49.724792][ T4844] x11: 0000000000000000 x10: 0000000000000000 x9 : 10bbedadbeefc300 [ 49.726038][ T4844] x8 : 10bbedadbeefc300 x7 : 0000000000000001 x6 : 0000000000000001 [ 49.727309][ T4844] x5 : ffff80001be76ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 49.728677][ T4844] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 49.730037][ T4844] Call trace: [ 49.730575][ T4844] btrfs_drop_extents+0x1d88/0x21a4 [ 49.731401][ T4844] btrfs_replace_file_extents+0x328/0x1290 [ 49.732245][ T4844] __btrfs_prealloc_file_range+0x390/0xb88 [ 49.733076][ T4844] btrfs_prealloc_file_range+0x60/0x7c [ 49.733991][ T4844] btrfs_zero_range+0xc28/0xe94 [ 49.734809][ T4844] btrfs_fallocate+0x8b0/0x1614 [ 49.735620][ T4844] vfs_fallocate+0x4a4/0x5f4 [ 49.736370][ T4844] __arm64_sys_fallocate+0xc0/0x110 [ 49.737185][ T4844] invoke_syscall+0x98/0x2b8 [ 49.737937][ T4844] el0_svc_common+0x138/0x258 [ 49.738689][ T4844] do_el0_svc+0x58/0x14c [ 49.739405][ T4844] el0_svc+0x78/0x1e0 [ 49.740099][ T4844] el0t_64_sync_handler+0xcc/0xe4 [ 49.740971][ T4844] el0t_64_sync+0x1a0/0x1a4 [ 49.741756][ T4844] irq event stamp: 80570 [ 49.742442][ T4844] hardirqs last enabled at (80569): [] __up_console_sem+0xb4/0x100 [ 49.744063][ T4844] hardirqs last disabled at (80570): [] el1_dbg+0x24/0x80 [ 49.745437][ T4844] softirqs last enabled at (80558): [] handle_softirqs+0xa4c/0xbf0 [ 49.746918][ T4844] softirqs last disabled at (80457): [] __irq_exit_rcu+0x240/0x440 [ 49.748474][ T4844] ---[ end trace b8ea50274e5dfe38 ]--- [ 49.750431][ T4844] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 49.751954][ T4844] BTRFS info (device loop0): forced readonly [ 49.752828][ T4844] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 49.838042][ T4510] Bluetooth: hci0: command 0x041b tx timeout [ 49.934773][ T4865] loop0: detected capacity change from 0 to 32768 [ 49.937916][ T4865] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4865) [ 49.947200][ T4865] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 49.948687][ T4865] BTRFS info (device loop0): using free space tree [ 49.949639][ T4865] BTRFS info (device loop0): has skinny extents [ 49.964308][ T4865] BTRFS info (device loop0): enabling ssd optimizations [ 49.968896][ T4865] FAULT_INJECTION: forcing a failure. [ 49.968896][ T4865] name failslab, interval 1, probability 0, space 0, times 0 [ 49.970994][ T4865] CPU: 1 PID: 4865 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.972394][ T4865] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 49.973973][ T4865] Call trace: [ 49.974441][ T4865] dump_backtrace+0x0/0x43c [ 49.975121][ T4865] show_stack+0x2c/0x3c [ 49.975763][ T4865] __dump_stack+0x30/0x40 [ 49.976417][ T4865] dump_stack_lvl+0xf8/0x160 [ 49.977117][ T4865] dump_stack+0x1c/0x5c [ 49.977759][ T4865] should_fail+0x3c0/0x51c [ 49.978432][ T4865] __should_failslab+0xbc/0x10c [ 49.979256][ T4865] should_failslab+0x10/0x28 [ 49.980044][ T4865] slab_pre_alloc_hook+0x64/0xec [ 49.980894][ T4865] kmem_cache_alloc+0x94/0x3e4 [ 49.981666][ T4865] alloc_extent_map+0x28/0x128 [ 49.982507][ T4865] btrfs_drop_extent_cache+0x160/0xdec [ 49.983445][ T4865] btrfs_drop_extents+0x2c8/0x21a4 [ 49.984267][ T4865] btrfs_replace_file_extents+0x328/0x1290 [ 49.985168][ T4865] __btrfs_prealloc_file_range+0x390/0xb88 [ 49.986028][ T4865] btrfs_prealloc_file_range+0x60/0x7c [ 49.986916][ T4865] btrfs_zero_range+0xc28/0xe94 [ 49.987703][ T4865] btrfs_fallocate+0x8b0/0x1614 [ 49.988519][ T4865] vfs_fallocate+0x4a4/0x5f4 [ 49.989254][ T4865] __arm64_sys_fallocate+0xc0/0x110 [ 49.990061][ T4865] invoke_syscall+0x98/0x2b8 [ 49.990828][ T4865] el0_svc_common+0x138/0x258 [ 49.991602][ T4865] do_el0_svc+0x58/0x14c [ 49.992334][ T4865] el0_svc+0x78/0x1e0 [ 49.992958][ T4865] el0t_64_sync_handler+0xcc/0xe4 [ 49.993749][ T4865] el0t_64_sync+0x1a0/0x1a4 [ 50.200432][ T4886] loop0: detected capacity change from 0 to 32768 [ 50.203081][ T4886] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4886) [ 50.206948][ T4886] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 50.209047][ T4886] BTRFS info (device loop0): using free space tree [ 50.210194][ T4886] BTRFS info (device loop0): has skinny extents [ 50.218455][ T4886] BTRFS info (device loop0): enabling ssd optimizations [ 50.222496][ T4886] FAULT_INJECTION: forcing a failure. [ 50.222496][ T4886] name failslab, interval 1, probability 0, space 0, times 0 [ 50.224528][ T4886] CPU: 0 PID: 4886 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.225996][ T4886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 50.227669][ T4886] Call trace: [ 50.228200][ T4886] dump_backtrace+0x0/0x43c [ 50.228973][ T4886] show_stack+0x2c/0x3c [ 50.229664][ T4886] __dump_stack+0x30/0x40 [ 50.230380][ T4886] dump_stack_lvl+0xf8/0x160 [ 50.231082][ T4886] dump_stack+0x1c/0x5c [ 50.231695][ T4886] should_fail+0x3c0/0x51c [ 50.232414][ T4886] __should_failslab+0xbc/0x10c [ 50.233244][ T4886] should_failslab+0x10/0x28 [ 50.234064][ T4886] slab_pre_alloc_hook+0x64/0xec [ 50.234929][ T4886] kmem_cache_alloc+0x94/0x3e4 [ 50.235747][ T4886] btrfs_add_delayed_data_ref+0x164/0xd0c [ 50.236707][ T4886] btrfs_free_extent+0x2d8/0x400 [ 50.237560][ T4886] btrfs_drop_extents+0x1144/0x21a4 [ 50.238414][ T4886] btrfs_replace_file_extents+0x328/0x1290 [ 50.239330][ T4886] __btrfs_prealloc_file_range+0x390/0xb88 [ 50.240251][ T4886] btrfs_prealloc_file_range+0x60/0x7c [ 50.241215][ T4886] btrfs_zero_range+0xc28/0xe94 [ 50.241985][ T4886] btrfs_fallocate+0x8b0/0x1614 [ 50.242725][ T4886] vfs_fallocate+0x4a4/0x5f4 [ 50.243466][ T4886] __arm64_sys_fallocate+0xc0/0x110 [ 50.244308][ T4886] invoke_syscall+0x98/0x2b8 [ 50.245056][ T4886] el0_svc_common+0x138/0x258 [ 50.245816][ T4886] do_el0_svc+0x58/0x14c [ 50.246487][ T4886] el0_svc+0x78/0x1e0 [ 50.247106][ T4886] el0t_64_sync_handler+0xcc/0xe4 [ 50.247854][ T4886] el0t_64_sync+0x1a0/0x1a4 [ 50.251137][ T4886] ------------[ cut here ]------------ [ 50.252129][ T4886] WARNING: CPU: 0 PID: 4886 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 50.253672][ T4886] Modules linked in: [ 50.254281][ T4886] CPU: 0 PID: 4886 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.255641][ T4886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 50.257170][ T4886] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.258436][ T4886] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 50.259396][ T4886] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 50.260311][ T4886] sp : ffff80001fef71c0 [ 50.260968][ T4886] x29: ffff80001fef7480 x28: 00000000fffffff4 x27: ffff0000d584c1f0 [ 50.262279][ T4886] x26: ffff0000c79219e0 x25: 0000000000011000 x24: dfff800000000000 [ 50.263585][ T4886] x23: 0000000000011000 x22: ffff80001fef7300 x21: 0000000000000107 [ 50.264941][ T4886] x20: 1fffe0001bd787ad x19: ffff0000debc3d68 x18: 0000000000000001 [ 50.266273][ T4886] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 50.267604][ T4886] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 50.268922][ T4886] x11: 0000000000000000 x10: 0000000000000000 x9 : 5fe695fd6ef2b800 [ 50.270271][ T4886] x8 : 5fe695fd6ef2b800 x7 : 0000000000000001 x6 : 0000000000000001 [ 50.271582][ T4886] x5 : ffff80001fef6ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 50.272947][ T4886] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 50.274243][ T4886] Call trace: [ 50.274769][ T4886] btrfs_drop_extents+0x1d88/0x21a4 [ 50.275596][ T4886] btrfs_replace_file_extents+0x328/0x1290 [ 50.276595][ T4886] __btrfs_prealloc_file_range+0x390/0xb88 [ 50.277539][ T4886] btrfs_prealloc_file_range+0x60/0x7c [ 50.278430][ T4886] btrfs_zero_range+0xc28/0xe94 [ 50.279269][ T4886] btrfs_fallocate+0x8b0/0x1614 [ 50.280096][ T4886] vfs_fallocate+0x4a4/0x5f4 [ 50.280901][ T4886] __arm64_sys_fallocate+0xc0/0x110 [ 50.281802][ T4886] invoke_syscall+0x98/0x2b8 [ 50.282584][ T4886] el0_svc_common+0x138/0x258 [ 50.283339][ T4886] do_el0_svc+0x58/0x14c [ 50.283941][ T4886] el0_svc+0x78/0x1e0 [ 50.284571][ T4886] el0t_64_sync_handler+0xcc/0xe4 [ 50.285353][ T4886] el0t_64_sync+0x1a0/0x1a4 [ 50.286000][ T4886] irq event stamp: 79308 [ 50.286621][ T4886] hardirqs last enabled at (79307): [] __up_console_sem+0xb4/0x100 [ 50.288023][ T4886] hardirqs last disabled at (79308): [] el1_dbg+0x24/0x80 [ 50.289348][ T4886] softirqs last enabled at (79288): [] handle_softirqs+0xa4c/0xbf0 [ 50.290742][ T4886] softirqs last disabled at (79177): [] __irq_exit_rcu+0x240/0x440 [ 50.292186][ T4886] ---[ end trace b8ea50274e5dfe39 ]--- [ 50.293998][ T4886] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 50.295561][ T4886] BTRFS info (device loop0): forced readonly [ 50.296495][ T4886] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 50.480660][ T4907] loop0: detected capacity change from 0 to 32768 [ 50.483120][ T4907] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4907) [ 50.486840][ T4907] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 50.488557][ T4907] BTRFS info (device loop0): using free space tree [ 50.489548][ T4907] BTRFS info (device loop0): has skinny extents [ 50.497924][ T4907] BTRFS info (device loop0): enabling ssd optimizations [ 50.502392][ T4907] FAULT_INJECTION: forcing a failure. [ 50.502392][ T4907] name failslab, interval 1, probability 0, space 0, times 0 [ 50.504284][ T4907] CPU: 1 PID: 4907 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.505774][ T4907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 50.507243][ T4907] Call trace: [ 50.507720][ T4907] dump_backtrace+0x0/0x43c [ 50.508465][ T4907] show_stack+0x2c/0x3c [ 50.509093][ T4907] __dump_stack+0x30/0x40 [ 50.509740][ T4907] dump_stack_lvl+0xf8/0x160 [ 50.510401][ T4907] dump_stack+0x1c/0x5c [ 50.510980][ T4907] should_fail+0x3c0/0x51c [ 50.511615][ T4907] __should_failslab+0xbc/0x10c [ 50.512294][ T4907] should_failslab+0x10/0x28 [ 50.513013][ T4907] slab_pre_alloc_hook+0x64/0xec [ 50.513784][ T4907] kmem_cache_alloc+0x94/0x3e4 [ 50.514571][ T4907] btrfs_add_delayed_data_ref+0x164/0xd0c [ 50.515523][ T4907] btrfs_free_extent+0x2d8/0x400 [ 50.516355][ T4907] btrfs_drop_extents+0x1144/0x21a4 [ 50.517178][ T4907] btrfs_replace_file_extents+0x328/0x1290 [ 50.518035][ T4907] __btrfs_prealloc_file_range+0x390/0xb88 [ 50.518984][ T4907] btrfs_prealloc_file_range+0x60/0x7c [ 50.519818][ T4907] btrfs_zero_range+0xc28/0xe94 [ 50.520597][ T4907] btrfs_fallocate+0x8b0/0x1614 [ 50.521392][ T4907] vfs_fallocate+0x4a4/0x5f4 [ 50.522188][ T4907] __arm64_sys_fallocate+0xc0/0x110 [ 50.523060][ T4907] invoke_syscall+0x98/0x2b8 [ 50.523785][ T4907] el0_svc_common+0x138/0x258 [ 50.524484][ T4907] do_el0_svc+0x58/0x14c [ 50.525107][ T4907] el0_svc+0x78/0x1e0 [ 50.525783][ T4907] el0t_64_sync_handler+0xcc/0xe4 [ 50.526580][ T4907] el0t_64_sync+0x1a0/0x1a4 [ 50.528497][ T4907] ------------[ cut here ]------------ [ 50.529504][ T4907] WARNING: CPU: 1 PID: 4907 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 50.530946][ T4907] Modules linked in: [ 50.531654][ T4907] CPU: 1 PID: 4907 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.533046][ T4907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 50.534580][ T4907] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.535820][ T4907] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 50.536723][ T4907] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 50.537609][ T4907] sp : ffff8000203171c0 [ 50.538212][ T4907] x29: ffff800020317480 x28: 00000000fffffff4 x27: ffff0000dd050000 [ 50.539382][ T4907] x26: ffff0000c89ef880 x25: 0000000000011000 x24: dfff800000000000 [ 50.540593][ T4907] x23: 0000000000011000 x22: ffff800020317300 x21: 0000000000000107 [ 50.541737][ T4907] x20: 1fffe0001bd2efef x19: ffff0000de977f78 x18: 0000000000000001 [ 50.542972][ T4907] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 50.544232][ T4907] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 50.545513][ T4907] x11: 0000000000000000 x10: 0000000000000000 x9 : 2138b2ba78c27400 [ 50.546914][ T4907] x8 : 2138b2ba78c27400 x7 : 0000000000000001 x6 : 0000000000000001 [ 50.548271][ T4907] x5 : ffff800020316ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 50.549523][ T4907] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 50.550719][ T4907] Call trace: [ 50.551222][ T4907] btrfs_drop_extents+0x1d88/0x21a4 [ 50.552006][ T4907] btrfs_replace_file_extents+0x328/0x1290 [ 50.552908][ T4907] __btrfs_prealloc_file_range+0x390/0xb88 [ 50.553833][ T4907] btrfs_prealloc_file_range+0x60/0x7c [ 50.554728][ T4907] btrfs_zero_range+0xc28/0xe94 [ 50.555485][ T4907] btrfs_fallocate+0x8b0/0x1614 [ 50.556262][ T4907] vfs_fallocate+0x4a4/0x5f4 [ 50.557038][ T4907] __arm64_sys_fallocate+0xc0/0x110 [ 50.557867][ T4907] invoke_syscall+0x98/0x2b8 [ 50.558603][ T4907] el0_svc_common+0x138/0x258 [ 50.559335][ T4907] do_el0_svc+0x58/0x14c [ 50.560005][ T4907] el0_svc+0x78/0x1e0 [ 50.560676][ T4907] el0t_64_sync_handler+0xcc/0xe4 [ 50.561510][ T4907] el0t_64_sync+0x1a0/0x1a4 [ 50.562223][ T4907] irq event stamp: 79550 [ 50.562857][ T4907] hardirqs last enabled at (79549): [] __up_console_sem+0xb4/0x100 [ 50.564305][ T4907] hardirqs last disabled at (79550): [] el1_dbg+0x24/0x80 [ 50.565703][ T4907] softirqs last enabled at (79530): [] handle_softirqs+0xa4c/0xbf0 [ 50.567262][ T4907] softirqs last disabled at (79509): [] __irq_exit_rcu+0x240/0x440 [ 50.568806][ T4907] ---[ end trace b8ea50274e5dfe3a ]--- [ 50.570848][ T4907] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 50.572241][ T4907] BTRFS info (device loop0): forced readonly [ 50.573081][ T4907] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 50.772159][ T4928] loop0: detected capacity change from 0 to 32768 [ 50.774773][ T4928] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4928) [ 50.778803][ T4928] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 50.780345][ T4928] BTRFS info (device loop0): using free space tree [ 50.781495][ T4928] BTRFS info (device loop0): has skinny extents [ 50.793036][ T4928] BTRFS info (device loop0): enabling ssd optimizations [ 50.797047][ T4928] FAULT_INJECTION: forcing a failure. [ 50.797047][ T4928] name failslab, interval 1, probability 0, space 0, times 0 [ 50.802200][ T4928] CPU: 1 PID: 4928 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.803639][ T4928] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 50.805262][ T4928] Call trace: [ 50.805723][ T4928] dump_backtrace+0x0/0x43c [ 50.806412][ T4928] show_stack+0x2c/0x3c [ 50.807084][ T4928] __dump_stack+0x30/0x40 [ 50.807737][ T4928] dump_stack_lvl+0xf8/0x160 [ 50.808521][ T4928] dump_stack+0x1c/0x5c [ 50.809191][ T4928] should_fail+0x3c0/0x51c [ 50.809925][ T4928] __should_failslab+0xbc/0x10c [ 50.810732][ T4928] should_failslab+0x10/0x28 [ 50.811462][ T4928] slab_pre_alloc_hook+0x64/0xec [ 50.812244][ T4928] kmem_cache_alloc+0x94/0x3e4 [ 50.812964][ T4928] alloc_extent_map+0x28/0x128 [ 50.813700][ T4928] btrfs_drop_extent_cache+0x160/0xdec [ 50.814557][ T4928] btrfs_drop_extents+0x2c8/0x21a4 [ 50.815332][ T4928] btrfs_replace_file_extents+0x328/0x1290 [ 50.816215][ T4928] __btrfs_prealloc_file_range+0x390/0xb88 [ 50.817078][ T4928] btrfs_prealloc_file_range+0x60/0x7c [ 50.817859][ T4928] btrfs_zero_range+0xc28/0xe94 [ 50.818576][ T4928] btrfs_fallocate+0x8b0/0x1614 [ 50.819285][ T4928] vfs_fallocate+0x4a4/0x5f4 [ 50.820022][ T4928] __arm64_sys_fallocate+0xc0/0x110 [ 50.820789][ T4928] invoke_syscall+0x98/0x2b8 [ 50.821548][ T4928] el0_svc_common+0x138/0x258 [ 50.822325][ T4928] do_el0_svc+0x58/0x14c [ 50.823027][ T4928] el0_svc+0x78/0x1e0 [ 50.823663][ T4928] el0t_64_sync_handler+0xcc/0xe4 [ 50.824384][ T4928] el0t_64_sync+0x1a0/0x1a4 1970/01/01 00:00:50 executed programs: 13 [ 51.014658][ T4950] loop0: detected capacity change from 0 to 32768 [ 51.017119][ T4950] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4950) [ 51.020545][ T4950] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 51.022094][ T4950] BTRFS info (device loop0): using free space tree [ 51.023090][ T4950] BTRFS info (device loop0): has skinny extents [ 51.035793][ T4950] BTRFS info (device loop0): enabling ssd optimizations [ 51.044874][ T4950] FAULT_INJECTION: forcing a failure. [ 51.044874][ T4950] name failslab, interval 1, probability 0, space 0, times 0 [ 51.047069][ T4950] CPU: 0 PID: 4950 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.048514][ T4950] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 51.050196][ T4950] Call trace: [ 51.050707][ T4950] dump_backtrace+0x0/0x43c [ 51.051452][ T4950] show_stack+0x2c/0x3c [ 51.052102][ T4950] __dump_stack+0x30/0x40 [ 51.052814][ T4950] dump_stack_lvl+0xf8/0x160 [ 51.053512][ T4950] dump_stack+0x1c/0x5c [ 51.054204][ T4950] should_fail+0x3c0/0x51c [ 51.054917][ T4950] __should_failslab+0xbc/0x10c [ 51.055713][ T4950] should_failslab+0x10/0x28 [ 51.056483][ T4950] slab_pre_alloc_hook+0x64/0xec [ 51.057340][ T4950] kmem_cache_alloc+0x94/0x3e4 [ 51.058117][ T4950] alloc_extent_map+0x28/0x128 [ 51.058885][ T4950] btrfs_drop_extent_cache+0x160/0xdec [ 51.059734][ T4950] btrfs_drop_extents+0x2c8/0x21a4 [ 51.060464][ T4950] btrfs_replace_file_extents+0x328/0x1290 [ 51.061400][ T4950] __btrfs_prealloc_file_range+0x390/0xb88 [ 51.062372][ T4950] btrfs_prealloc_file_range+0x60/0x7c [ 51.063259][ T4950] btrfs_zero_range+0xc28/0xe94 [ 51.064016][ T4950] btrfs_fallocate+0x8b0/0x1614 [ 51.064723][ T4950] vfs_fallocate+0x4a4/0x5f4 [ 51.065407][ T4950] __arm64_sys_fallocate+0xc0/0x110 [ 51.066234][ T4950] invoke_syscall+0x98/0x2b8 [ 51.066958][ T4950] el0_svc_common+0x138/0x258 [ 51.067751][ T4950] do_el0_svc+0x58/0x14c [ 51.068419][ T4950] el0_svc+0x78/0x1e0 [ 51.069095][ T4950] el0t_64_sync_handler+0xcc/0xe4 [ 51.069911][ T4950] el0t_64_sync+0x1a0/0x1a4 [ 51.273437][ T4971] loop0: detected capacity change from 0 to 32768 [ 51.276078][ T4971] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4971) [ 51.283836][ T4971] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 51.285273][ T4971] BTRFS info (device loop0): using free space tree [ 51.286181][ T4971] BTRFS info (device loop0): has skinny extents [ 51.297748][ T4971] BTRFS info (device loop0): enabling ssd optimizations [ 51.302098][ T4971] FAULT_INJECTION: forcing a failure. [ 51.302098][ T4971] name failslab, interval 1, probability 0, space 0, times 0 [ 51.304253][ T4971] CPU: 0 PID: 4971 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.305579][ T4971] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 51.307048][ T4971] Call trace: [ 51.307517][ T4971] dump_backtrace+0x0/0x43c [ 51.308163][ T4971] show_stack+0x2c/0x3c [ 51.308740][ T4971] __dump_stack+0x30/0x40 [ 51.309378][ T4971] dump_stack_lvl+0xf8/0x160 [ 51.310099][ T4971] dump_stack+0x1c/0x5c [ 51.310702][ T4971] should_fail+0x3c0/0x51c [ 51.311496][ T4971] __should_failslab+0xbc/0x10c [ 51.312312][ T4971] should_failslab+0x10/0x28 [ 51.313088][ T4971] slab_pre_alloc_hook+0x64/0xec [ 51.313873][ T4971] kmem_cache_alloc+0x94/0x3e4 [ 51.314663][ T4971] btrfs_add_delayed_data_ref+0x164/0xd0c [ 51.315638][ T4971] btrfs_free_extent+0x2d8/0x400 [ 51.316427][ T4971] btrfs_drop_extents+0x1144/0x21a4 [ 51.317284][ T4971] btrfs_replace_file_extents+0x328/0x1290 [ 51.318245][ T4971] __btrfs_prealloc_file_range+0x390/0xb88 [ 51.319093][ T4971] btrfs_prealloc_file_range+0x60/0x7c [ 51.319940][ T4971] btrfs_zero_range+0xc28/0xe94 [ 51.320737][ T4971] btrfs_fallocate+0x8b0/0x1614 [ 51.321543][ T4971] vfs_fallocate+0x4a4/0x5f4 [ 51.322357][ T4971] __arm64_sys_fallocate+0xc0/0x110 [ 51.323237][ T4971] invoke_syscall+0x98/0x2b8 [ 51.323963][ T4971] el0_svc_common+0x138/0x258 [ 51.324696][ T4971] do_el0_svc+0x58/0x14c [ 51.325397][ T4971] el0_svc+0x78/0x1e0 [ 51.326021][ T4971] el0t_64_sync_handler+0xcc/0xe4 [ 51.326876][ T4971] el0t_64_sync+0x1a0/0x1a4 [ 51.328422][ T4971] ------------[ cut here ]------------ [ 51.329404][ T4971] WARNING: CPU: 0 PID: 4971 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 51.331005][ T4971] Modules linked in: [ 51.331661][ T4971] CPU: 0 PID: 4971 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.333180][ T4971] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 51.334800][ T4971] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.336085][ T4971] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 51.337038][ T4971] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 51.337961][ T4971] sp : ffff8000204171c0 [ 51.338658][ T4971] x29: ffff800020417480 x28: 00000000fffffff4 x27: ffff0000dbdb7170 [ 51.340008][ T4971] x26: ffff0000dacc4670 x25: 0000000000011000 x24: dfff800000000000 [ 51.341303][ T4971] x23: 0000000000011000 x22: ffff800020417300 x21: 0000000000000107 [ 51.342558][ T4971] x20: 1fffe0001bd1bc63 x19: ffff0000de8de318 x18: 0000000000000001 [ 51.343878][ T4971] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 51.345256][ T4971] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 51.346509][ T4971] x11: 0000000000000000 x10: 0000000000000000 x9 : 8f81ab7291cdc800 [ 51.347870][ T4971] x8 : 8f81ab7291cdc800 x7 : 0000000000000001 x6 : 0000000000000001 [ 51.349177][ T4971] x5 : ffff800020416ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 51.350482][ T4971] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 51.351812][ T4971] Call trace: [ 51.352359][ T4971] btrfs_drop_extents+0x1d88/0x21a4 [ 51.353234][ T4971] btrfs_replace_file_extents+0x328/0x1290 [ 51.354161][ T4971] __btrfs_prealloc_file_range+0x390/0xb88 [ 51.355178][ T4971] btrfs_prealloc_file_range+0x60/0x7c [ 51.356116][ T4971] btrfs_zero_range+0xc28/0xe94 [ 51.356844][ T4971] btrfs_fallocate+0x8b0/0x1614 [ 51.357595][ T4971] vfs_fallocate+0x4a4/0x5f4 [ 51.358358][ T4971] __arm64_sys_fallocate+0xc0/0x110 [ 51.359225][ T4971] invoke_syscall+0x98/0x2b8 [ 51.359999][ T4971] el0_svc_common+0x138/0x258 [ 51.360739][ T4971] do_el0_svc+0x58/0x14c [ 51.361427][ T4971] el0_svc+0x78/0x1e0 [ 51.362068][ T4971] el0t_64_sync_handler+0xcc/0xe4 [ 51.362903][ T4971] el0t_64_sync+0x1a0/0x1a4 [ 51.363601][ T4971] irq event stamp: 80436 [ 51.364272][ T4971] hardirqs last enabled at (80435): [] __up_console_sem+0xb4/0x100 [ 51.365836][ T4971] hardirqs last disabled at (80436): [] el1_dbg+0x24/0x80 [ 51.367229][ T4971] softirqs last enabled at (80416): [] handle_softirqs+0xa4c/0xbf0 [ 51.368747][ T4971] softirqs last disabled at (80325): [] __irq_exit_rcu+0x240/0x440 [ 51.370280][ T4971] ---[ end trace b8ea50274e5dfe3b ]--- [ 51.371290][ T4971] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 51.372737][ T4971] BTRFS info (device loop0): forced readonly [ 51.373726][ T4971] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 51.570905][ T4992] loop0: detected capacity change from 0 to 32768 [ 51.573279][ T4992] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4992) [ 51.577271][ T4992] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 51.578949][ T4992] BTRFS info (device loop0): using free space tree [ 51.580095][ T4992] BTRFS info (device loop0): has skinny extents [ 51.591521][ T4992] BTRFS info (device loop0): enabling ssd optimizations [ 51.595651][ T4992] FAULT_INJECTION: forcing a failure. [ 51.595651][ T4992] name failslab, interval 1, probability 0, space 0, times 0 [ 51.597800][ T4992] CPU: 0 PID: 4992 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.599248][ T4992] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 51.600916][ T4992] Call trace: [ 51.601433][ T4992] dump_backtrace+0x0/0x43c [ 51.602144][ T4992] show_stack+0x2c/0x3c [ 51.602842][ T4992] __dump_stack+0x30/0x40 [ 51.603570][ T4992] dump_stack_lvl+0xf8/0x160 [ 51.604289][ T4992] dump_stack+0x1c/0x5c [ 51.604944][ T4992] should_fail+0x3c0/0x51c [ 51.605645][ T4992] __should_failslab+0xbc/0x10c [ 51.606483][ T4992] should_failslab+0x10/0x28 [ 51.607248][ T4992] slab_pre_alloc_hook+0x64/0xec [ 51.608050][ T4992] kmem_cache_alloc+0x94/0x3e4 [ 51.608780][ T4992] btrfs_add_delayed_data_ref+0x164/0xd0c [ 51.609779][ T4992] btrfs_free_extent+0x2d8/0x400 [ 51.610607][ T4992] btrfs_drop_extents+0x1144/0x21a4 [ 51.611463][ T4992] btrfs_replace_file_extents+0x328/0x1290 [ 51.612371][ T4992] __btrfs_prealloc_file_range+0x390/0xb88 [ 51.613313][ T4992] btrfs_prealloc_file_range+0x60/0x7c [ 51.614163][ T4992] btrfs_zero_range+0xc28/0xe94 [ 51.614900][ T4992] btrfs_fallocate+0x8b0/0x1614 [ 51.615645][ T4992] vfs_fallocate+0x4a4/0x5f4 [ 51.616391][ T4992] __arm64_sys_fallocate+0xc0/0x110 [ 51.617264][ T4992] invoke_syscall+0x98/0x2b8 [ 51.617962][ T4992] el0_svc_common+0x138/0x258 [ 51.618725][ T4992] do_el0_svc+0x58/0x14c [ 51.619368][ T4992] el0_svc+0x78/0x1e0 [ 51.620004][ T4992] el0t_64_sync_handler+0xcc/0xe4 [ 51.620794][ T4992] el0t_64_sync+0x1a0/0x1a4 [ 51.621707][ T4992] ------------[ cut here ]------------ [ 51.622682][ T4992] WARNING: CPU: 0 PID: 4992 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 51.624238][ T4992] Modules linked in: [ 51.624883][ T4992] CPU: 0 PID: 4992 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.626391][ T4992] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 51.627988][ T4992] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.629184][ T4992] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 51.630101][ T4992] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 51.631039][ T4992] sp : ffff8000207971c0 [ 51.631775][ T4992] x29: ffff800020797480 x28: 00000000fffffff4 x27: ffff0000dcd34f80 [ 51.633184][ T4992] x26: ffff0000c8d45250 x25: 0000000000011000 x24: dfff800000000000 [ 51.634502][ T4992] x23: 0000000000011000 x22: ffff800020797300 x21: 0000000000000107 [ 51.635831][ T4992] x20: 1fffe0001bd1bca5 x19: ffff0000de8de528 x18: 0000000000000001 [ 51.637124][ T4992] x17: 0000000000000000 x16: ffff800008302168 x15: 00000000ffffffff [ 51.638399][ T4992] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 51.639640][ T4992] x11: 0000000000000000 x10: 0000000000000000 x9 : 2746fb204b93ee00 [ 51.640815][ T4992] x8 : 2746fb204b93ee00 x7 : 0000000000000001 x6 : 0000000000000001 [ 51.642139][ T4992] x5 : ffff800020796ab8 x4 : ffff80001425f420 x3 : ffff800008302278 [ 51.643519][ T4992] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 51.644844][ T4992] Call trace: [ 51.645377][ T4992] btrfs_drop_extents+0x1d88/0x21a4 [ 51.646274][ T4992] btrfs_replace_file_extents+0x328/0x1290 [ 51.647235][ T4992] __btrfs_prealloc_file_range+0x390/0xb88 [ 51.648158][ T4992] btrfs_prealloc_file_range+0x60/0x7c [ 51.648983][ T4992] btrfs_zero_range+0xc28/0xe94 [ 51.649734][ T4992] btrfs_fallocate+0x8b0/0x1614 [ 51.650519][ T4992] vfs_fallocate+0x4a4/0x5f4 [ 51.651240][ T4992] __arm64_sys_fallocate+0xc0/0x110 [ 51.652039][ T4992] invoke_syscall+0x98/0x2b8 [ 51.652825][ T4992] el0_svc_common+0x138/0x258 [ 51.653595][ T4992] do_el0_svc+0x58/0x14c [ 51.654288][ T4992] el0_svc+0x78/0x1e0 [ 51.654932][ T4992] el0t_64_sync_handler+0xcc/0xe4 [ 51.655755][ T4992] el0t_64_sync+0x1a0/0x1a4 [ 51.656458][ T4992] irq event stamp: 79376 [ 51.657132][ T4992] hardirqs last enabled at (79375): [] __up_console_sem+0xb4/0x100 [ 51.658694][ T4992] hardirqs last disabled at (79376): [] el1_dbg+0x24/0x80 [ 51.660000][ T4992] softirqs last enabled at (79356): [] handle_softirqs+0xa4c/0xbf0 [ 51.661608][ T4992] softirqs last disabled at (79343): [] __irq_exit_rcu+0x240/0x440 [ 51.663113][ T4992] ---[ end trace b8ea50274e5dfe3c ]--- [ 51.664225][ T4992] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 51.665777][ T4992] BTRFS info (device loop0): forced readonly [ 51.666689][ T4992] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 51.849255][ T5013] loop0: detected capacity change from 0 to 32768 [ 51.851794][ T5013] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5013) [ 51.856882][ T5013] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 51.858495][ T5013] BTRFS info (device loop0): using free space tree [ 51.859661][ T5013] BTRFS info (device loop0): has skinny extents [ 51.870107][ T5013] BTRFS info (device loop0): enabling ssd optimizations [ 51.874129][ T5013] FAULT_INJECTION: forcing a failure. [ 51.874129][ T5013] name failslab, interval 1, probability 0, space 0, times 0 [ 51.876228][ T5013] CPU: 0 PID: 5013 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.877729][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 51.879339][ T5013] Call trace: [ 51.879911][ T5013] dump_backtrace+0x0/0x43c [ 51.880647][ T5013] show_stack+0x2c/0x3c [ 51.881353][ T5013] __dump_stack+0x30/0x40 [ 51.882035][ T5013] dump_stack_lvl+0xf8/0x160 [ 51.882818][ T5013] dump_stack+0x1c/0x5c [ 51.883513][ T5013] should_fail+0x3c0/0x51c [ 51.884264][ T5013] __should_failslab+0xbc/0x10c [ 51.885122][ T5013] should_failslab+0x10/0x28 [ 51.885881][ T5013] slab_pre_alloc_hook+0x64/0xec [ 51.886674][ T5013] kmem_cache_alloc+0x94/0x3e4 [ 51.887501][ T5013] btrfs_add_delayed_data_ref+0x164/0xd0c [ 51.888440][ T5013] btrfs_free_extent+0x2d8/0x400 [ 51.889165][ T5013] btrfs_drop_extents+0x1144/0x21a4 [ 51.889976][ T5013] btrfs_replace_file_extents+0x328/0x1290 [ 51.890825][ T5013] __btrfs_prealloc_file_range+0x390/0xb88 [ 51.891734][ T5013] btrfs_prealloc_file_range+0x60/0x7c [ 51.892681][ T5013] btrfs_zero_range+0xc28/0xe94 [ 51.893476][ T5013] btrfs_fallocate+0x8b0/0x1614 [ 51.894311][ T5013] vfs_fallocate+0x4a4/0x5f4 [ 51.895032][ T5013] __arm64_sys_fallocate+0xc0/0x110 [ 51.895796][ T5013] invoke_syscall+0x98/0x2b8 [ 51.896520][ T5013] el0_svc_common+0x138/0x258 [ 51.897271][ T5013] do_el0_svc+0x58/0x14c [ 51.897908][ T5013] el0_svc+0x78/0x1e0 [ 51.898542][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 51.899319][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 51.901890][ T5013] ------------[ cut here ]------------ [ 51.902837][ T5013] WARNING: CPU: 0 PID: 5013 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 51.904285][ T5013] Modules linked in: [ 51.904898][ T5013] CPU: 0 PID: 5013 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.906448][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 51.908093][ T5013] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.909306][ T5013] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 51.910184][ T5013] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 51.911118][ T5013] sp : ffff8000207a71c0 [ 51.911825][ T5013] x29: ffff8000207a7480 x28: 00000000fffffff4 x27: ffff0000d87c6d90 [ 51.913223][ T5013] x26: ffff0000d235bbf0 x25: 0000000000011000 x24: dfff800000000000 [ 51.914505][ T5013] x23: 0000000000011000 x22: ffff8000207a7300 x21: 0000000000000107 [ 51.915885][ T5013] x20: 1fffe0001bd1bce7 x19: ffff0000de8de738 x18: 0000000000000001 [ 51.917262][ T5013] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 51.918564][ T5013] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 51.919954][ T5013] x11: 0000000000000000 x10: 0000000000000000 x9 : c6e1353a33922500 [ 51.921361][ T5013] x8 : c6e1353a33922500 x7 : 0000000000000001 x6 : 0000000000000001 [ 51.922743][ T5013] x5 : ffff8000207a6ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 51.924045][ T5013] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 51.925377][ T5013] Call trace: [ 51.925913][ T5013] btrfs_drop_extents+0x1d88/0x21a4 [ 51.926738][ T5013] btrfs_replace_file_extents+0x328/0x1290 [ 51.927655][ T5013] __btrfs_prealloc_file_range+0x390/0xb88 [ 51.928564][ T5013] btrfs_prealloc_file_range+0x60/0x7c [ 51.929422][ T5013] btrfs_zero_range+0xc28/0xe94 [ 51.930139][ T5013] btrfs_fallocate+0x8b0/0x1614 [ 51.930882][ T5013] vfs_fallocate+0x4a4/0x5f4 [ 51.931597][ T5013] __arm64_sys_fallocate+0xc0/0x110 [ 51.932489][ T5013] invoke_syscall+0x98/0x2b8 [ 51.933283][ T5013] el0_svc_common+0x138/0x258 [ 51.934043][ T5013] do_el0_svc+0x58/0x14c [ 51.934761][ T5013] el0_svc+0x78/0x1e0 [ 51.935421][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 51.936270][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 51.937024][ T5013] irq event stamp: 80022 [ 51.937705][ T5013] hardirqs last enabled at (80021): [] __up_console_sem+0xb4/0x100 [ 51.939263][ T5013] hardirqs last disabled at (80022): [] el1_dbg+0x24/0x80 [ 51.940643][ T5013] softirqs last enabled at (80002): [] handle_softirqs+0xa4c/0xbf0 [ 51.942173][ T5013] softirqs last disabled at (79983): [] __irq_exit_rcu+0x240/0x440 [ 51.943787][ T5013] ---[ end trace b8ea50274e5dfe3d ]--- [ 51.945250][ T4507] Bluetooth: hci0: command 0x040f tx timeout [ 51.946877][ T5013] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 51.948593][ T5013] BTRFS info (device loop0): forced readonly [ 51.949608][ T5013] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 52.143582][ T5034] loop0: detected capacity change from 0 to 32768 [ 52.145988][ T5034] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5034) [ 52.151699][ T5034] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 52.153333][ T5034] BTRFS info (device loop0): using free space tree [ 52.154413][ T5034] BTRFS info (device loop0): has skinny extents [ 52.167798][ T5034] BTRFS info (device loop0): enabling ssd optimizations [ 52.173409][ T5034] FAULT_INJECTION: forcing a failure. [ 52.173409][ T5034] name failslab, interval 1, probability 0, space 0, times 0 [ 52.175572][ T5034] CPU: 1 PID: 5034 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.176972][ T5034] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 52.178609][ T5034] Call trace: [ 52.179145][ T5034] dump_backtrace+0x0/0x43c [ 52.179870][ T5034] show_stack+0x2c/0x3c [ 52.180565][ T5034] __dump_stack+0x30/0x40 [ 52.181221][ T5034] dump_stack_lvl+0xf8/0x160 [ 52.181935][ T5034] dump_stack+0x1c/0x5c [ 52.182585][ T5034] should_fail+0x3c0/0x51c [ 52.183288][ T5034] __should_failslab+0xbc/0x10c [ 52.184041][ T5034] should_failslab+0x10/0x28 [ 52.184791][ T5034] slab_pre_alloc_hook+0x64/0xec [ 52.185550][ T5034] kmem_cache_alloc+0x94/0x3e4 [ 52.186359][ T5034] btrfs_add_delayed_data_ref+0x164/0xd0c [ 52.187356][ T5034] btrfs_free_extent+0x2d8/0x400 [ 52.188209][ T5034] btrfs_drop_extents+0x1144/0x21a4 [ 52.189072][ T5034] btrfs_replace_file_extents+0x328/0x1290 [ 52.190015][ T5034] __btrfs_prealloc_file_range+0x390/0xb88 [ 52.190970][ T5034] btrfs_prealloc_file_range+0x60/0x7c [ 52.191777][ T5034] btrfs_zero_range+0xc28/0xe94 [ 52.192536][ T5034] btrfs_fallocate+0x8b0/0x1614 [ 52.193359][ T5034] vfs_fallocate+0x4a4/0x5f4 [ 52.194082][ T5034] __arm64_sys_fallocate+0xc0/0x110 [ 52.194843][ T5034] invoke_syscall+0x98/0x2b8 [ 52.195568][ T5034] el0_svc_common+0x138/0x258 [ 52.196338][ T5034] do_el0_svc+0x58/0x14c [ 52.197013][ T5034] el0_svc+0x78/0x1e0 [ 52.197681][ T5034] el0t_64_sync_handler+0xcc/0xe4 [ 52.198487][ T5034] el0t_64_sync+0x1a0/0x1a4 [ 52.200860][ T5034] ------------[ cut here ]------------ [ 52.201815][ T5034] WARNING: CPU: 1 PID: 5034 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 52.203270][ T5034] Modules linked in: [ 52.203871][ T5034] CPU: 1 PID: 5034 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.205349][ T5034] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 52.206969][ T5034] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.208144][ T5034] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 52.209079][ T5034] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 52.210001][ T5034] sp : ffff8000204171c0 [ 52.210657][ T5034] x29: ffff800020417480 x28: 00000000fffffff4 x27: ffff0000d7dfe000 [ 52.211927][ T5034] x26: ffff0000cb830bf0 x25: 0000000000011000 x24: dfff800000000000 [ 52.213129][ T5034] x23: 0000000000011000 x22: ffff800020417300 x21: 0000000000000107 [ 52.214302][ T5034] x20: 1fffe0001bd4a2a5 x19: ffff0000dea51528 x18: 0000000000000001 [ 52.215465][ T5034] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 52.216707][ T5034] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 52.218050][ T5034] x11: 0000000000000000 x10: 0000000000000000 x9 : 7a6701400ec0f600 [ 52.219378][ T5034] x8 : 7a6701400ec0f600 x7 : 0000000000000001 x6 : 0000000000000001 [ 52.220632][ T5034] x5 : ffff800020416ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 52.221848][ T5034] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 52.223194][ T5034] Call trace: [ 52.223806][ T5034] btrfs_drop_extents+0x1d88/0x21a4 [ 52.224600][ T5034] btrfs_replace_file_extents+0x328/0x1290 [ 52.225509][ T5034] __btrfs_prealloc_file_range+0x390/0xb88 [ 52.226435][ T5034] btrfs_prealloc_file_range+0x60/0x7c [ 52.227217][ T5034] btrfs_zero_range+0xc28/0xe94 [ 52.227971][ T5034] btrfs_fallocate+0x8b0/0x1614 [ 52.228747][ T5034] vfs_fallocate+0x4a4/0x5f4 [ 52.229438][ T5034] __arm64_sys_fallocate+0xc0/0x110 [ 52.230228][ T5034] invoke_syscall+0x98/0x2b8 [ 52.230944][ T5034] el0_svc_common+0x138/0x258 [ 52.231712][ T5034] do_el0_svc+0x58/0x14c [ 52.232385][ T5034] el0_svc+0x78/0x1e0 [ 52.233027][ T5034] el0t_64_sync_handler+0xcc/0xe4 [ 52.233828][ T5034] el0t_64_sync+0x1a0/0x1a4 [ 52.234565][ T5034] irq event stamp: 80782 [ 52.235245][ T5034] hardirqs last enabled at (80781): [] __up_console_sem+0xb4/0x100 [ 52.236740][ T5034] hardirqs last disabled at (80782): [] el1_dbg+0x24/0x80 [ 52.238016][ T5034] softirqs last enabled at (80762): [] handle_softirqs+0xa4c/0xbf0 [ 52.239579][ T5034] softirqs last disabled at (80619): [] __irq_exit_rcu+0x240/0x440 [ 52.241076][ T5034] ---[ end trace b8ea50274e5dfe3e ]--- [ 52.243611][ T5034] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 52.245043][ T5034] BTRFS info (device loop0): forced readonly [ 52.246012][ T5034] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 52.451916][ T5055] loop0: detected capacity change from 0 to 32768 [ 52.456126][ T5055] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5055) [ 52.459604][ T5055] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 52.461836][ T5055] BTRFS info (device loop0): using free space tree [ 52.462971][ T5055] BTRFS info (device loop0): has skinny extents [ 52.479899][ T5055] BTRFS info (device loop0): enabling ssd optimizations [ 52.484269][ T5055] FAULT_INJECTION: forcing a failure. [ 52.484269][ T5055] name failslab, interval 1, probability 0, space 0, times 0 [ 52.486334][ T5055] CPU: 0 PID: 5055 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.487671][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 52.489216][ T5055] Call trace: [ 52.489735][ T5055] dump_backtrace+0x0/0x43c [ 52.490436][ T5055] show_stack+0x2c/0x3c [ 52.491095][ T5055] __dump_stack+0x30/0x40 [ 52.491746][ T5055] dump_stack_lvl+0xf8/0x160 [ 52.492443][ T5055] dump_stack+0x1c/0x5c [ 52.493094][ T5055] should_fail+0x3c0/0x51c [ 52.493856][ T5055] __should_failslab+0xbc/0x10c [ 52.494672][ T5055] should_failslab+0x10/0x28 [ 52.495433][ T5055] slab_pre_alloc_hook+0x64/0xec [ 52.496161][ T5055] kmem_cache_alloc+0x94/0x3e4 [ 52.496959][ T5055] alloc_extent_map+0x28/0x128 [ 52.497667][ T5055] btrfs_drop_extent_cache+0x160/0xdec [ 52.498536][ T5055] btrfs_drop_extents+0x2c8/0x21a4 [ 52.499299][ T5055] btrfs_replace_file_extents+0x328/0x1290 [ 52.500201][ T5055] __btrfs_prealloc_file_range+0x390/0xb88 [ 52.501238][ T5055] btrfs_prealloc_file_range+0x60/0x7c [ 52.502147][ T5055] btrfs_zero_range+0xc28/0xe94 [ 52.502938][ T5055] btrfs_fallocate+0x8b0/0x1614 [ 52.503747][ T5055] vfs_fallocate+0x4a4/0x5f4 [ 52.504464][ T5055] __arm64_sys_fallocate+0xc0/0x110 [ 52.505293][ T5055] invoke_syscall+0x98/0x2b8 [ 52.506011][ T5055] el0_svc_common+0x138/0x258 [ 52.506765][ T5055] do_el0_svc+0x58/0x14c [ 52.507480][ T5055] el0_svc+0x78/0x1e0 [ 52.508084][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 52.508890][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 52.691983][ T5076] loop0: detected capacity change from 0 to 32768 [ 52.694374][ T5076] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5076) [ 52.697645][ T5076] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 52.699956][ T5076] BTRFS info (device loop0): using free space tree [ 52.701119][ T5076] BTRFS info (device loop0): has skinny extents [ 52.716866][ T5076] BTRFS info (device loop0): enabling ssd optimizations [ 52.720939][ T5076] FAULT_INJECTION: forcing a failure. [ 52.720939][ T5076] name failslab, interval 1, probability 0, space 0, times 0 [ 52.723055][ T5076] CPU: 1 PID: 5076 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.724505][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 52.726163][ T5076] Call trace: [ 52.726721][ T5076] dump_backtrace+0x0/0x43c [ 52.727421][ T5076] show_stack+0x2c/0x3c [ 52.728063][ T5076] __dump_stack+0x30/0x40 [ 52.728757][ T5076] dump_stack_lvl+0xf8/0x160 [ 52.729405][ T5076] dump_stack+0x1c/0x5c [ 52.730106][ T5076] should_fail+0x3c0/0x51c [ 52.730818][ T5076] __should_failslab+0xbc/0x10c [ 52.731576][ T5076] should_failslab+0x10/0x28 [ 52.732320][ T5076] slab_pre_alloc_hook+0x64/0xec [ 52.733154][ T5076] kmem_cache_alloc+0x94/0x3e4 [ 52.733867][ T5076] btrfs_add_delayed_data_ref+0x164/0xd0c [ 52.734804][ T5076] btrfs_free_extent+0x2d8/0x400 [ 52.735618][ T5076] btrfs_drop_extents+0x1144/0x21a4 [ 52.736451][ T5076] btrfs_replace_file_extents+0x328/0x1290 [ 52.737348][ T5076] __btrfs_prealloc_file_range+0x390/0xb88 [ 52.738235][ T5076] btrfs_prealloc_file_range+0x60/0x7c [ 52.739097][ T5076] btrfs_zero_range+0xc28/0xe94 [ 52.739874][ T5076] btrfs_fallocate+0x8b0/0x1614 [ 52.740640][ T5076] vfs_fallocate+0x4a4/0x5f4 [ 52.741385][ T5076] __arm64_sys_fallocate+0xc0/0x110 [ 52.742227][ T5076] invoke_syscall+0x98/0x2b8 [ 52.742988][ T5076] el0_svc_common+0x138/0x258 [ 52.743728][ T5076] do_el0_svc+0x58/0x14c [ 52.744470][ T5076] el0_svc+0x78/0x1e0 [ 52.745124][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 52.745946][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 52.749042][ T5076] ------------[ cut here ]------------ [ 52.750045][ T5076] WARNING: CPU: 1 PID: 5076 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 52.751544][ T5076] Modules linked in: [ 52.752179][ T5076] CPU: 1 PID: 5076 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.753771][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 52.755430][ T5076] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.756718][ T5076] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 52.757481][ T5076] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 52.758253][ T5076] sp : ffff8000210171c0 [ 52.758862][ T5076] x29: ffff800021017480 x28: 00000000fffffff4 x27: ffff0000ca6b87c0 [ 52.760003][ T5076] x26: ffff0000da378a90 x25: 0000000000011000 x24: dfff800000000000 [ 52.761238][ T5076] x23: 0000000000011000 x22: ffff800021017300 x21: 0000000000000107 [ 52.762517][ T5076] x20: 1fffe0001bd4a2e7 x19: ffff0000dea51738 x18: 0000000000000001 [ 52.763853][ T5076] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 52.765011][ T5076] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 52.766312][ T5076] x11: 0000000000000000 x10: 0000000000000000 x9 : 3c0355985432c600 [ 52.767619][ T5076] x8 : 3c0355985432c600 x7 : 0000000000000001 x6 : 0000000000000001 [ 52.768973][ T5076] x5 : ffff800021016ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 52.770296][ T5076] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 52.771568][ T5076] Call trace: [ 52.772109][ T5076] btrfs_drop_extents+0x1d88/0x21a4 [ 52.772967][ T5076] btrfs_replace_file_extents+0x328/0x1290 [ 52.773947][ T5076] __btrfs_prealloc_file_range+0x390/0xb88 [ 52.774871][ T5076] btrfs_prealloc_file_range+0x60/0x7c [ 52.775751][ T5076] btrfs_zero_range+0xc28/0xe94 [ 52.776480][ T5076] btrfs_fallocate+0x8b0/0x1614 [ 52.777214][ T5076] vfs_fallocate+0x4a4/0x5f4 [ 52.777910][ T5076] __arm64_sys_fallocate+0xc0/0x110 [ 52.778764][ T5076] invoke_syscall+0x98/0x2b8 [ 52.779488][ T5076] el0_svc_common+0x138/0x258 [ 52.780232][ T5076] do_el0_svc+0x58/0x14c [ 52.780844][ T5076] el0_svc+0x78/0x1e0 [ 52.781429][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 52.782197][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 52.782895][ T5076] irq event stamp: 79812 [ 52.783512][ T5076] hardirqs last enabled at (79811): [] __up_console_sem+0xb4/0x100 [ 52.784983][ T5076] hardirqs last disabled at (79812): [] el1_dbg+0x24/0x80 [ 52.786243][ T5076] softirqs last enabled at (79792): [] handle_softirqs+0xa4c/0xbf0 [ 52.787595][ T5076] softirqs last disabled at (79759): [] __irq_exit_rcu+0x240/0x440 [ 52.788961][ T5076] ---[ end trace b8ea50274e5dfe3f ]--- [ 52.790526][ T5076] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 52.791887][ T5076] BTRFS info (device loop0): forced readonly [ 52.792699][ T5076] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 52.961450][ T5097] loop0: detected capacity change from 0 to 32768 [ 52.964126][ T5097] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5097) [ 52.967376][ T5097] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 52.968842][ T5097] BTRFS info (device loop0): using free space tree [ 52.969827][ T5097] BTRFS info (device loop0): has skinny extents [ 52.978768][ T5097] BTRFS info (device loop0): enabling ssd optimizations [ 52.982469][ T5097] FAULT_INJECTION: forcing a failure. [ 52.982469][ T5097] name failslab, interval 1, probability 0, space 0, times 0 [ 52.984320][ T5097] CPU: 1 PID: 5097 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.985737][ T5097] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 52.987327][ T5097] Call trace: [ 52.987807][ T5097] dump_backtrace+0x0/0x43c [ 52.988520][ T5097] show_stack+0x2c/0x3c [ 52.989151][ T5097] __dump_stack+0x30/0x40 [ 52.989867][ T5097] dump_stack_lvl+0xf8/0x160 [ 52.990632][ T5097] dump_stack+0x1c/0x5c [ 52.991281][ T5097] should_fail+0x3c0/0x51c [ 52.991984][ T5097] __should_failslab+0xbc/0x10c [ 52.992793][ T5097] should_failslab+0x10/0x28 [ 52.993537][ T5097] slab_pre_alloc_hook+0x64/0xec [ 52.994281][ T5097] kmem_cache_alloc+0x94/0x3e4 [ 52.995007][ T5097] btrfs_add_delayed_data_ref+0x164/0xd0c [ 52.995848][ T5097] btrfs_free_extent+0x2d8/0x400 [ 52.996634][ T5097] btrfs_drop_extents+0x1144/0x21a4 [ 52.997496][ T5097] btrfs_replace_file_extents+0x328/0x1290 [ 52.998319][ T5097] __btrfs_prealloc_file_range+0x390/0xb88 [ 52.999221][ T5097] btrfs_prealloc_file_range+0x60/0x7c [ 53.000132][ T5097] btrfs_zero_range+0xc28/0xe94 [ 53.000864][ T5097] btrfs_fallocate+0x8b0/0x1614 [ 53.001642][ T5097] vfs_fallocate+0x4a4/0x5f4 [ 53.002344][ T5097] __arm64_sys_fallocate+0xc0/0x110 [ 53.003128][ T5097] invoke_syscall+0x98/0x2b8 [ 53.003805][ T5097] el0_svc_common+0x138/0x258 [ 53.004481][ T5097] do_el0_svc+0x58/0x14c [ 53.005101][ T5097] el0_svc+0x78/0x1e0 [ 53.005795][ T5097] el0t_64_sync_handler+0xcc/0xe4 [ 53.006656][ T5097] el0t_64_sync+0x1a0/0x1a4 [ 53.008061][ T5097] ------------[ cut here ]------------ [ 53.008982][ T5097] WARNING: CPU: 1 PID: 5097 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 53.010349][ T5097] Modules linked in: [ 53.010885][ T5097] CPU: 1 PID: 5097 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.012129][ T5097] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 53.013481][ T5097] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.014521][ T5097] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 53.015258][ T5097] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 53.016011][ T5097] sp : ffff8000203171c0 [ 53.016533][ T5097] x29: ffff800020317480 x28: 00000000fffffff4 x27: ffff0000d40805d0 [ 53.017645][ T5097] x26: ffff0000dbbbf670 x25: 0000000000011000 x24: dfff800000000000 [ 53.018964][ T5097] x23: 0000000000011000 x22: ffff800020317300 x21: 0000000000000107 [ 53.020194][ T5097] x20: 1fffe0001bd4a329 x19: ffff0000dea51948 x18: 0000000000000001 [ 53.021466][ T5097] x17: 0000000000000000 x16: ffff800008302168 x15: 00000000ffffffff [ 53.022621][ T5097] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 53.023741][ T5097] x11: 0000000000000000 x10: 0000000000000000 x9 : a43de1832f686b00 [ 53.024846][ T5097] x8 : a43de1832f686b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.025979][ T5097] x5 : ffff800020316ab8 x4 : ffff80001425f420 x3 : ffff800008302278 [ 53.027112][ T5097] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 53.028206][ T5097] Call trace: [ 53.028660][ T5097] btrfs_drop_extents+0x1d88/0x21a4 [ 53.029345][ T5097] btrfs_replace_file_extents+0x328/0x1290 [ 53.030264][ T5097] __btrfs_prealloc_file_range+0x390/0xb88 [ 53.031145][ T5097] btrfs_prealloc_file_range+0x60/0x7c [ 53.031966][ T5097] btrfs_zero_range+0xc28/0xe94 [ 53.032682][ T5097] btrfs_fallocate+0x8b0/0x1614 [ 53.033364][ T5097] vfs_fallocate+0x4a4/0x5f4 [ 53.033998][ T5097] __arm64_sys_fallocate+0xc0/0x110 [ 53.034721][ T5097] invoke_syscall+0x98/0x2b8 [ 53.035358][ T5097] el0_svc_common+0x138/0x258 [ 53.036028][ T5097] do_el0_svc+0x58/0x14c [ 53.036624][ T5097] el0_svc+0x78/0x1e0 [ 53.037211][ T5097] el0t_64_sync_handler+0xcc/0xe4 [ 53.037959][ T5097] el0t_64_sync+0x1a0/0x1a4 [ 53.038595][ T5097] irq event stamp: 80224 [ 53.039155][ T5097] hardirqs last enabled at (80223): [] __up_console_sem+0xb4/0x100 [ 53.040427][ T5097] hardirqs last disabled at (80224): [] el1_dbg+0x24/0x80 [ 53.041623][ T5097] softirqs last enabled at (80204): [] handle_softirqs+0xa4c/0xbf0 [ 53.042916][ T5097] softirqs last disabled at (80189): [] __irq_exit_rcu+0x240/0x440 [ 53.044215][ T5097] ---[ end trace b8ea50274e5dfe40 ]--- [ 53.045742][ T5097] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 53.047199][ T5097] BTRFS info (device loop0): forced readonly [ 53.048210][ T5097] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 53.236967][ T5118] loop0: detected capacity change from 0 to 32768 [ 53.248089][ T5118] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5118) [ 53.252894][ T5118] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 53.254572][ T5118] BTRFS info (device loop0): using free space tree [ 53.255526][ T5118] BTRFS info (device loop0): has skinny extents [ 53.268259][ T5118] BTRFS info (device loop0): enabling ssd optimizations [ 53.272853][ T5118] FAULT_INJECTION: forcing a failure. [ 53.272853][ T5118] name failslab, interval 1, probability 0, space 0, times 0 [ 53.274854][ T5118] CPU: 0 PID: 5118 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.276262][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 53.277852][ T5118] Call trace: [ 53.278356][ T5118] dump_backtrace+0x0/0x43c [ 53.279071][ T5118] show_stack+0x2c/0x3c [ 53.279714][ T5118] __dump_stack+0x30/0x40 [ 53.280463][ T5118] dump_stack_lvl+0xf8/0x160 [ 53.281140][ T5118] dump_stack+0x1c/0x5c [ 53.281737][ T5118] should_fail+0x3c0/0x51c [ 53.282358][ T5118] __should_failslab+0xbc/0x10c [ 53.283026][ T5118] should_failslab+0x10/0x28 [ 53.283664][ T5118] slab_pre_alloc_hook+0x64/0xec [ 53.284419][ T5118] kmem_cache_alloc+0x94/0x3e4 [ 53.285129][ T5118] btrfs_add_delayed_data_ref+0x164/0xd0c [ 53.285989][ T5118] btrfs_free_extent+0x2d8/0x400 [ 53.286742][ T5118] btrfs_drop_extents+0x1144/0x21a4 [ 53.287434][ T5118] btrfs_replace_file_extents+0x328/0x1290 [ 53.288198][ T5118] __btrfs_prealloc_file_range+0x390/0xb88 [ 53.289089][ T5118] btrfs_prealloc_file_range+0x60/0x7c [ 53.289955][ T5118] btrfs_zero_range+0xc28/0xe94 [ 53.290717][ T5118] btrfs_fallocate+0x8b0/0x1614 [ 53.291546][ T5118] vfs_fallocate+0x4a4/0x5f4 [ 53.292363][ T5118] __arm64_sys_fallocate+0xc0/0x110 [ 53.293288][ T5118] invoke_syscall+0x98/0x2b8 [ 53.294006][ T5118] el0_svc_common+0x138/0x258 [ 53.294797][ T5118] do_el0_svc+0x58/0x14c [ 53.295517][ T5118] el0_svc+0x78/0x1e0 [ 53.296166][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 53.296909][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 53.300262][ T5118] ------------[ cut here ]------------ [ 53.301240][ T5118] WARNING: CPU: 0 PID: 5118 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 53.302674][ T5118] Modules linked in: [ 53.303312][ T5118] CPU: 0 PID: 5118 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.304838][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 53.306550][ T5118] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.307802][ T5118] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 53.308661][ T5118] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 53.309518][ T5118] sp : ffff8000211271c0 [ 53.310158][ T5118] x29: ffff800021127480 x28: 00000000fffffff4 x27: ffff0000c9c3f930 [ 53.311331][ T5118] x26: ffff0000d13e3e00 x25: 0000000000011000 x24: dfff800000000000 [ 53.312619][ T5118] x23: 0000000000011000 x22: ffff800021127300 x21: 0000000000000107 [ 53.313890][ T5118] x20: 1fffe0001bd1bd97 x19: ffff0000de8decb8 x18: 0000000000000001 [ 53.315273][ T5118] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 53.316596][ T5118] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 53.317857][ T5118] x11: 0000000000000000 x10: 0000000000000000 x9 : 7db5106a5ddae300 [ 53.319165][ T5118] x8 : 7db5106a5ddae300 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.320531][ T5118] x5 : ffff800021126ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 53.321879][ T5118] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 53.323210][ T5118] Call trace: [ 53.323744][ T5118] btrfs_drop_extents+0x1d88/0x21a4 [ 53.324523][ T5118] btrfs_replace_file_extents+0x328/0x1290 [ 53.325466][ T5118] __btrfs_prealloc_file_range+0x390/0xb88 [ 53.326384][ T5118] btrfs_prealloc_file_range+0x60/0x7c [ 53.327198][ T5118] btrfs_zero_range+0xc28/0xe94 [ 53.327909][ T5118] btrfs_fallocate+0x8b0/0x1614 [ 53.328628][ T5118] vfs_fallocate+0x4a4/0x5f4 [ 53.329325][ T5118] __arm64_sys_fallocate+0xc0/0x110 [ 53.330147][ T5118] invoke_syscall+0x98/0x2b8 [ 53.330860][ T5118] el0_svc_common+0x138/0x258 [ 53.331580][ T5118] do_el0_svc+0x58/0x14c [ 53.332295][ T5118] el0_svc+0x78/0x1e0 [ 53.332987][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 53.333828][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 53.334529][ T5118] irq event stamp: 81444 [ 53.335234][ T5118] hardirqs last enabled at (81443): [] __up_console_sem+0xb4/0x100 [ 53.336721][ T5118] hardirqs last disabled at (81444): [] el1_dbg+0x24/0x80 [ 53.338197][ T5118] softirqs last enabled at (81424): [] handle_softirqs+0xa4c/0xbf0 [ 53.339776][ T5118] softirqs last disabled at (81407): [] __irq_exit_rcu+0x240/0x440 [ 53.341191][ T5118] ---[ end trace b8ea50274e5dfe41 ]--- [ 53.343244][ T5118] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 53.344686][ T5118] BTRFS info (device loop0): forced readonly [ 53.345651][ T5118] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 53.550960][ T5139] loop0: detected capacity change from 0 to 32768 [ 53.553308][ T5139] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5139) [ 53.556472][ T5139] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 53.558055][ T5139] BTRFS info (device loop0): using free space tree [ 53.559078][ T5139] BTRFS info (device loop0): has skinny extents [ 53.571742][ T5139] BTRFS info (device loop0): enabling ssd optimizations [ 53.575501][ T5139] FAULT_INJECTION: forcing a failure. [ 53.575501][ T5139] name failslab, interval 1, probability 0, space 0, times 0 [ 53.577682][ T5139] CPU: 1 PID: 5139 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.578961][ T5139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 53.580365][ T5139] Call trace: [ 53.580895][ T5139] dump_backtrace+0x0/0x43c [ 53.581639][ T5139] show_stack+0x2c/0x3c [ 53.582243][ T5139] __dump_stack+0x30/0x40 [ 53.582877][ T5139] dump_stack_lvl+0xf8/0x160 [ 53.583642][ T5139] dump_stack+0x1c/0x5c [ 53.584351][ T5139] should_fail+0x3c0/0x51c [ 53.585079][ T5139] __should_failslab+0xbc/0x10c [ 53.585877][ T5139] should_failslab+0x10/0x28 [ 53.586657][ T5139] slab_pre_alloc_hook+0x64/0xec [ 53.587497][ T5139] kmem_cache_alloc+0x94/0x3e4 [ 53.588286][ T5139] btrfs_add_delayed_data_ref+0x164/0xd0c [ 53.589178][ T5139] btrfs_free_extent+0x2d8/0x400 [ 53.589957][ T5139] btrfs_drop_extents+0x1144/0x21a4 [ 53.590820][ T5139] btrfs_replace_file_extents+0x328/0x1290 [ 53.591815][ T5139] __btrfs_prealloc_file_range+0x390/0xb88 [ 53.592778][ T5139] btrfs_prealloc_file_range+0x60/0x7c [ 53.593630][ T5139] btrfs_zero_range+0xc28/0xe94 [ 53.594422][ T5139] btrfs_fallocate+0x8b0/0x1614 [ 53.595200][ T5139] vfs_fallocate+0x4a4/0x5f4 [ 53.595981][ T5139] __arm64_sys_fallocate+0xc0/0x110 [ 53.596831][ T5139] invoke_syscall+0x98/0x2b8 [ 53.597595][ T5139] el0_svc_common+0x138/0x258 [ 53.598371][ T5139] do_el0_svc+0x58/0x14c [ 53.599084][ T5139] el0_svc+0x78/0x1e0 [ 53.599761][ T5139] el0t_64_sync_handler+0xcc/0xe4 [ 53.600544][ T5139] el0t_64_sync+0x1a0/0x1a4 [ 53.602443][ T5139] ------------[ cut here ]------------ [ 53.603443][ T5139] WARNING: CPU: 1 PID: 5139 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 53.605038][ T5139] Modules linked in: [ 53.605625][ T5139] CPU: 1 PID: 5139 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.607060][ T5139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 53.608776][ T5139] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.610121][ T5139] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 53.610988][ T5139] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 53.611897][ T5139] sp : ffff8000212371c0 [ 53.612580][ T5139] x29: ffff800021237480 x28: 00000000fffffff4 x27: ffff0000d4d73b20 [ 53.613913][ T5139] x26: ffff0000c91b65c0 x25: 0000000000011000 x24: dfff800000000000 [ 53.615212][ T5139] x23: 0000000000011000 x22: ffff800021237300 x21: 0000000000000107 [ 53.616434][ T5139] x20: 1fffe0001bd4a36b x19: ffff0000dea51b58 x18: 0000000000000001 [ 53.617577][ T5139] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 53.618854][ T5139] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 53.620154][ T5139] x11: 0000000000000000 x10: 0000000000000000 x9 : df4b3ee181db0e00 [ 53.621427][ T5139] x8 : df4b3ee181db0e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.622755][ T5139] x5 : ffff800021236ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 53.624063][ T5139] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 53.625439][ T5139] Call trace: [ 53.625997][ T5139] btrfs_drop_extents+0x1d88/0x21a4 [ 53.626885][ T5139] btrfs_replace_file_extents+0x328/0x1290 [ 53.627885][ T5139] __btrfs_prealloc_file_range+0x390/0xb88 [ 53.628847][ T5139] btrfs_prealloc_file_range+0x60/0x7c [ 53.629713][ T5139] btrfs_zero_range+0xc28/0xe94 [ 53.630525][ T5139] btrfs_fallocate+0x8b0/0x1614 [ 53.631343][ T5139] vfs_fallocate+0x4a4/0x5f4 [ 53.632094][ T5139] __arm64_sys_fallocate+0xc0/0x110 [ 53.632906][ T5139] invoke_syscall+0x98/0x2b8 [ 53.633595][ T5139] el0_svc_common+0x138/0x258 [ 53.634367][ T5139] do_el0_svc+0x58/0x14c [ 53.635056][ T5139] el0_svc+0x78/0x1e0 [ 53.635693][ T5139] el0t_64_sync_handler+0xcc/0xe4 [ 53.636484][ T5139] el0t_64_sync+0x1a0/0x1a4 [ 53.637237][ T5139] irq event stamp: 80214 [ 53.637889][ T5139] hardirqs last enabled at (80213): [] __up_console_sem+0xb4/0x100 [ 53.639459][ T5139] hardirqs last disabled at (80214): [] el1_dbg+0x24/0x80 [ 53.640796][ T5139] softirqs last enabled at (80194): [] handle_softirqs+0xa4c/0xbf0 [ 53.642326][ T5139] softirqs last disabled at (80167): [] __irq_exit_rcu+0x240/0x440 [ 53.643773][ T5139] ---[ end trace b8ea50274e5dfe42 ]--- [ 53.645572][ T5139] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 53.646914][ T5139] BTRFS info (device loop0): forced readonly [ 53.647867][ T5139] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 53.824407][ T5160] loop0: detected capacity change from 0 to 32768 [ 53.826950][ T5160] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5160) [ 53.831131][ T5160] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 53.832727][ T5160] BTRFS info (device loop0): using free space tree [ 53.833706][ T5160] BTRFS info (device loop0): has skinny extents [ 53.842121][ T5160] BTRFS info (device loop0): enabling ssd optimizations [ 53.845521][ T5160] FAULT_INJECTION: forcing a failure. [ 53.845521][ T5160] name failslab, interval 1, probability 0, space 0, times 0 [ 53.847666][ T5160] CPU: 0 PID: 5160 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.849169][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 53.850850][ T5160] Call trace: [ 53.851408][ T5160] dump_backtrace+0x0/0x43c [ 53.852182][ T5160] show_stack+0x2c/0x3c [ 53.852875][ T5160] __dump_stack+0x30/0x40 [ 53.853580][ T5160] dump_stack_lvl+0xf8/0x160 [ 53.854323][ T5160] dump_stack+0x1c/0x5c [ 53.855022][ T5160] should_fail+0x3c0/0x51c [ 53.855753][ T5160] __should_failslab+0xbc/0x10c [ 53.856594][ T5160] should_failslab+0x10/0x28 [ 53.857343][ T5160] slab_pre_alloc_hook+0x64/0xec [ 53.858112][ T5160] kmem_cache_alloc+0x94/0x3e4 [ 53.858842][ T5160] btrfs_add_delayed_data_ref+0x164/0xd0c [ 53.859783][ T5160] btrfs_free_extent+0x2d8/0x400 [ 53.860681][ T5160] btrfs_drop_extents+0x1144/0x21a4 [ 53.861570][ T5160] btrfs_replace_file_extents+0x328/0x1290 [ 53.862557][ T5160] __btrfs_prealloc_file_range+0x390/0xb88 [ 53.863482][ T5160] btrfs_prealloc_file_range+0x60/0x7c [ 53.864341][ T5160] btrfs_zero_range+0xc28/0xe94 [ 53.865136][ T5160] btrfs_fallocate+0x8b0/0x1614 [ 53.865913][ T5160] vfs_fallocate+0x4a4/0x5f4 [ 53.866646][ T5160] __arm64_sys_fallocate+0xc0/0x110 [ 53.867518][ T5160] invoke_syscall+0x98/0x2b8 [ 53.868292][ T5160] el0_svc_common+0x138/0x258 [ 53.869083][ T5160] do_el0_svc+0x58/0x14c [ 53.869797][ T5160] el0_svc+0x78/0x1e0 [ 53.870461][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 53.871324][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 53.873704][ T5160] ------------[ cut here ]------------ [ 53.874636][ T5160] WARNING: CPU: 0 PID: 5160 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 53.876095][ T5160] Modules linked in: [ 53.876680][ T5160] CPU: 0 PID: 5160 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.878048][ T5160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 53.879720][ T5160] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.880991][ T5160] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 53.881886][ T5160] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 53.882737][ T5160] sp : ffff8000213171c0 [ 53.883334][ T5160] x29: ffff800021317480 x28: 00000000fffffff4 x27: ffff0000c1849740 [ 53.884646][ T5160] x26: ffff0000ce87b5c0 x25: 0000000000011000 x24: dfff800000000000 [ 53.885915][ T5160] x23: 0000000000011000 x22: ffff800021317300 x21: 0000000000000107 [ 53.887156][ T5160] x20: 1fffe0001bd1bdd9 x19: ffff0000de8deec8 x18: 0000000000000001 [ 53.888467][ T5160] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 53.889754][ T5160] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 53.891004][ T5160] x11: 0000000000000000 x10: 0000000000000000 x9 : daadc17633f8d000 [ 53.892260][ T5160] x8 : daadc17633f8d000 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.893562][ T5160] x5 : ffff800021316ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 53.894927][ T5160] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 53.896245][ T5160] Call trace: [ 53.896750][ T5160] btrfs_drop_extents+0x1d88/0x21a4 [ 53.897566][ T5160] btrfs_replace_file_extents+0x328/0x1290 [ 53.898504][ T5160] __btrfs_prealloc_file_range+0x390/0xb88 [ 53.899474][ T5160] btrfs_prealloc_file_range+0x60/0x7c [ 53.900340][ T5160] btrfs_zero_range+0xc28/0xe94 [ 53.901124][ T5160] btrfs_fallocate+0x8b0/0x1614 [ 53.901876][ T5160] vfs_fallocate+0x4a4/0x5f4 [ 53.902600][ T5160] __arm64_sys_fallocate+0xc0/0x110 [ 53.903498][ T5160] invoke_syscall+0x98/0x2b8 [ 53.904242][ T5160] el0_svc_common+0x138/0x258 [ 53.905038][ T5160] do_el0_svc+0x58/0x14c [ 53.905721][ T5160] el0_svc+0x78/0x1e0 [ 53.906377][ T5160] el0t_64_sync_handler+0xcc/0xe4 [ 53.907168][ T5160] el0t_64_sync+0x1a0/0x1a4 [ 53.907904][ T5160] irq event stamp: 80386 [ 53.908535][ T5160] hardirqs last enabled at (80385): [] __up_console_sem+0xb4/0x100 [ 53.910086][ T5160] hardirqs last disabled at (80386): [] el1_dbg+0x24/0x80 [ 53.911564][ T5160] softirqs last enabled at (80366): [] handle_softirqs+0xa4c/0xbf0 [ 53.912978][ T5160] softirqs last disabled at (80349): [] __irq_exit_rcu+0x240/0x440 [ 53.914542][ T5160] ---[ end trace b8ea50274e5dfe43 ]--- [ 53.916746][ T5160] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 53.919081][ T5160] BTRFS info (device loop0): forced readonly [ 53.920063][ T5160] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 53.997995][ T1542] Bluetooth: hci0: command 0x0419 tx timeout [ 54.111425][ T5181] loop0: detected capacity change from 0 to 32768 [ 54.114182][ T5181] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5181) [ 54.118579][ T5181] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 54.120124][ T5181] BTRFS info (device loop0): using free space tree [ 54.121297][ T5181] BTRFS info (device loop0): has skinny extents [ 54.130044][ T5181] BTRFS info (device loop0): enabling ssd optimizations [ 54.133656][ T5181] FAULT_INJECTION: forcing a failure. [ 54.133656][ T5181] name failslab, interval 1, probability 0, space 0, times 0 [ 54.135694][ T5181] CPU: 0 PID: 5181 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.137041][ T5181] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 54.138665][ T5181] Call trace: [ 54.139174][ T5181] dump_backtrace+0x0/0x43c [ 54.139955][ T5181] show_stack+0x2c/0x3c [ 54.140593][ T5181] __dump_stack+0x30/0x40 [ 54.141332][ T5181] dump_stack_lvl+0xf8/0x160 [ 54.142106][ T5181] dump_stack+0x1c/0x5c [ 54.142797][ T5181] should_fail+0x3c0/0x51c [ 54.143545][ T5181] __should_failslab+0xbc/0x10c [ 54.144335][ T5181] should_failslab+0x10/0x28 [ 54.145093][ T5181] slab_pre_alloc_hook+0x64/0xec [ 54.145914][ T5181] kmem_cache_alloc+0x94/0x3e4 [ 54.146613][ T5181] btrfs_add_delayed_data_ref+0x164/0xd0c [ 54.147422][ T5181] btrfs_free_extent+0x2d8/0x400 [ 54.148220][ T5181] btrfs_drop_extents+0x1144/0x21a4 [ 54.149052][ T5181] btrfs_replace_file_extents+0x328/0x1290 [ 54.149954][ T5181] __btrfs_prealloc_file_range+0x390/0xb88 [ 54.150925][ T5181] btrfs_prealloc_file_range+0x60/0x7c [ 54.151831][ T5181] btrfs_zero_range+0xc28/0xe94 [ 54.152616][ T5181] btrfs_fallocate+0x8b0/0x1614 [ 54.153400][ T5181] vfs_fallocate+0x4a4/0x5f4 [ 54.154163][ T5181] __arm64_sys_fallocate+0xc0/0x110 [ 54.154990][ T5181] invoke_syscall+0x98/0x2b8 [ 54.155759][ T5181] el0_svc_common+0x138/0x258 [ 54.156529][ T5181] do_el0_svc+0x58/0x14c [ 54.157218][ T5181] el0_svc+0x78/0x1e0 [ 54.157886][ T5181] el0t_64_sync_handler+0xcc/0xe4 [ 54.158638][ T5181] el0t_64_sync+0x1a0/0x1a4 [ 54.160122][ T5181] ------------[ cut here ]------------ [ 54.161090][ T5181] WARNING: CPU: 0 PID: 5181 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 54.162425][ T5181] Modules linked in: [ 54.162990][ T5181] CPU: 0 PID: 5181 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.164288][ T5181] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 54.165792][ T5181] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.166909][ T5181] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 54.167729][ T5181] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 54.168612][ T5181] sp : ffff8000211271c0 [ 54.169248][ T5181] x29: ffff800021127480 x28: 00000000fffffff4 x27: ffff0000d9db23e0 [ 54.170602][ T5181] x26: ffff0000da37ebf0 x25: 0000000000011000 x24: dfff800000000000 [ 54.171960][ T5181] x23: 0000000000011000 x22: ffff800021127300 x21: 0000000000000107 [ 54.173197][ T5181] x20: 1fffe0001bd786e7 x19: ffff0000debc3738 x18: 0000000000000001 [ 54.174448][ T5181] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 54.175683][ T5181] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 54.176917][ T5181] x11: 0000000000000000 x10: 0000000000000000 x9 : 8f0f4945618a0900 [ 54.178262][ T5181] x8 : 8f0f4945618a0900 x7 : 0000000000000001 x6 : 0000000000000001 [ 54.179528][ T5181] x5 : ffff800021126ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 54.180737][ T5181] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 54.182019][ T5181] Call trace: [ 54.182538][ T5181] btrfs_drop_extents+0x1d88/0x21a4 [ 54.183350][ T5181] btrfs_replace_file_extents+0x328/0x1290 [ 54.184204][ T5181] __btrfs_prealloc_file_range+0x390/0xb88 [ 54.185108][ T5181] btrfs_prealloc_file_range+0x60/0x7c [ 54.185999][ T5181] btrfs_zero_range+0xc28/0xe94 [ 54.186820][ T5181] btrfs_fallocate+0x8b0/0x1614 [ 54.187637][ T5181] vfs_fallocate+0x4a4/0x5f4 [ 54.188378][ T5181] __arm64_sys_fallocate+0xc0/0x110 [ 54.189161][ T5181] invoke_syscall+0x98/0x2b8 [ 54.189934][ T5181] el0_svc_common+0x138/0x258 [ 54.190735][ T5181] do_el0_svc+0x58/0x14c [ 54.191428][ T5181] el0_svc+0x78/0x1e0 [ 54.192075][ T5181] el0t_64_sync_handler+0xcc/0xe4 [ 54.192905][ T5181] el0t_64_sync+0x1a0/0x1a4 [ 54.193631][ T5181] irq event stamp: 79522 [ 54.194298][ T5181] hardirqs last enabled at (79521): [] __up_console_sem+0xb4/0x100 [ 54.195857][ T5181] hardirqs last disabled at (79522): [] el1_dbg+0x24/0x80 [ 54.197301][ T5181] softirqs last enabled at (79502): [] handle_softirqs+0xa4c/0xbf0 [ 54.198822][ T5181] softirqs last disabled at (79483): [] __irq_exit_rcu+0x240/0x440 [ 54.200418][ T5181] ---[ end trace b8ea50274e5dfe44 ]--- [ 54.201602][ T5181] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 54.203116][ T5181] BTRFS info (device loop0): forced readonly [ 54.204099][ T5181] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 54.401903][ T5202] loop0: detected capacity change from 0 to 32768 [ 54.404544][ T5202] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5202) [ 54.409803][ T5202] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 54.411336][ T5202] BTRFS info (device loop0): using free space tree [ 54.412336][ T5202] BTRFS info (device loop0): has skinny extents [ 54.426969][ T5202] BTRFS info (device loop0): enabling ssd optimizations [ 54.430606][ T5202] FAULT_INJECTION: forcing a failure. [ 54.430606][ T5202] name failslab, interval 1, probability 0, space 0, times 0 [ 54.432521][ T5202] CPU: 1 PID: 5202 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.433974][ T5202] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 54.435547][ T5202] Call trace: [ 54.436026][ T5202] dump_backtrace+0x0/0x43c [ 54.436721][ T5202] show_stack+0x2c/0x3c [ 54.437386][ T5202] __dump_stack+0x30/0x40 [ 54.438099][ T5202] dump_stack_lvl+0xf8/0x160 [ 54.438847][ T5202] dump_stack+0x1c/0x5c [ 54.439537][ T5202] should_fail+0x3c0/0x51c [ 54.440253][ T5202] __should_failslab+0xbc/0x10c [ 54.441038][ T5202] should_failslab+0x10/0x28 [ 54.441737][ T5202] slab_pre_alloc_hook+0x64/0xec [ 54.442487][ T5202] kmem_cache_alloc+0x94/0x3e4 [ 54.443271][ T5202] btrfs_add_delayed_data_ref+0x164/0xd0c [ 54.444198][ T5202] btrfs_free_extent+0x2d8/0x400 [ 54.444995][ T5202] btrfs_drop_extents+0x1144/0x21a4 [ 54.445747][ T5202] btrfs_replace_file_extents+0x328/0x1290 [ 54.446658][ T5202] __btrfs_prealloc_file_range+0x390/0xb88 [ 54.447530][ T5202] btrfs_prealloc_file_range+0x60/0x7c [ 54.448389][ T5202] btrfs_zero_range+0xc28/0xe94 [ 54.449125][ T5202] btrfs_fallocate+0x8b0/0x1614 [ 54.449917][ T5202] vfs_fallocate+0x4a4/0x5f4 [ 54.450610][ T5202] __arm64_sys_fallocate+0xc0/0x110 [ 54.451417][ T5202] invoke_syscall+0x98/0x2b8 [ 54.452064][ T5202] el0_svc_common+0x138/0x258 [ 54.452753][ T5202] do_el0_svc+0x58/0x14c [ 54.453406][ T5202] el0_svc+0x78/0x1e0 [ 54.454000][ T5202] el0t_64_sync_handler+0xcc/0xe4 [ 54.454699][ T5202] el0t_64_sync+0x1a0/0x1a4 [ 54.457143][ T5202] ------------[ cut here ]------------ [ 54.458230][ T5202] WARNING: CPU: 1 PID: 5202 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 54.459707][ T5202] Modules linked in: [ 54.460326][ T5202] CPU: 1 PID: 5202 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.461817][ T5202] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 54.463446][ T5202] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.464680][ T5202] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 54.465546][ T5202] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 54.466467][ T5202] sp : ffff8000216471c0 [ 54.467076][ T5202] x29: ffff800021647480 x28: 00000000fffffff4 x27: ffff0000ce029170 [ 54.468389][ T5202] x26: ffff0000ced44300 x25: 0000000000011000 x24: dfff800000000000 [ 54.469728][ T5202] x23: 0000000000011000 x22: ffff800021647300 x21: 0000000000000107 [ 54.471023][ T5202] x20: 1fffe0001bd4a3ad x19: ffff0000dea51d68 x18: 0000000000000001 [ 54.472316][ T5202] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 54.473608][ T5202] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 54.474958][ T5202] x11: 0000000000000000 x10: 0000000000000000 x9 : 29298a3230078300 [ 54.476319][ T5202] x8 : 29298a3230078300 x7 : 0000000000000001 x6 : 0000000000000001 [ 54.477565][ T5202] x5 : ffff800021646ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 54.478902][ T5202] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 54.480176][ T5202] Call trace: [ 54.480658][ T5202] btrfs_drop_extents+0x1d88/0x21a4 [ 54.481441][ T5202] btrfs_replace_file_extents+0x328/0x1290 [ 54.482375][ T5202] __btrfs_prealloc_file_range+0x390/0xb88 [ 54.483357][ T5202] btrfs_prealloc_file_range+0x60/0x7c [ 54.484293][ T5202] btrfs_zero_range+0xc28/0xe94 [ 54.485088][ T5202] btrfs_fallocate+0x8b0/0x1614 [ 54.485867][ T5202] vfs_fallocate+0x4a4/0x5f4 [ 54.486557][ T5202] __arm64_sys_fallocate+0xc0/0x110 [ 54.487398][ T5202] invoke_syscall+0x98/0x2b8 [ 54.488190][ T5202] el0_svc_common+0x138/0x258 [ 54.488992][ T5202] do_el0_svc+0x58/0x14c [ 54.489722][ T5202] el0_svc+0x78/0x1e0 [ 54.490403][ T5202] el0t_64_sync_handler+0xcc/0xe4 [ 54.491211][ T5202] el0t_64_sync+0x1a0/0x1a4 [ 54.491994][ T5202] irq event stamp: 79592 [ 54.492652][ T5202] hardirqs last enabled at (79591): [] __up_console_sem+0xb4/0x100 [ 54.494269][ T5202] hardirqs last disabled at (79592): [] el1_dbg+0x24/0x80 [ 54.495673][ T5202] softirqs last enabled at (79582): [] handle_softirqs+0xa4c/0xbf0 [ 54.497161][ T5202] softirqs last disabled at (79507): [] __irq_exit_rcu+0x240/0x440 [ 54.498768][ T5202] ---[ end trace b8ea50274e5dfe45 ]--- [ 54.500187][ T5202] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 54.501656][ T5202] BTRFS info (device loop0): forced readonly [ 54.502621][ T5202] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 54.712265][ T5223] loop0: detected capacity change from 0 to 32768 [ 54.714809][ T5223] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5223) [ 54.719163][ T5223] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 54.721874][ T5223] BTRFS info (device loop0): using free space tree [ 54.722961][ T5223] BTRFS info (device loop0): has skinny extents [ 54.738234][ T5223] BTRFS info (device loop0): enabling ssd optimizations [ 54.742272][ T5223] FAULT_INJECTION: forcing a failure. [ 54.742272][ T5223] name failslab, interval 1, probability 0, space 0, times 0 [ 54.744147][ T5223] CPU: 1 PID: 5223 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.745415][ T5223] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 54.746779][ T5223] Call trace: [ 54.747227][ T5223] dump_backtrace+0x0/0x43c [ 54.747864][ T5223] show_stack+0x2c/0x3c [ 54.748497][ T5223] __dump_stack+0x30/0x40 [ 54.749111][ T5223] dump_stack_lvl+0xf8/0x160 [ 54.749803][ T5223] dump_stack+0x1c/0x5c [ 54.750400][ T5223] should_fail+0x3c0/0x51c [ 54.751012][ T5223] __should_failslab+0xbc/0x10c [ 54.751862][ T5223] should_failslab+0x10/0x28 [ 54.752580][ T5223] slab_pre_alloc_hook+0x64/0xec [ 54.753377][ T5223] kmem_cache_alloc+0x94/0x3e4 [ 54.754141][ T5223] btrfs_add_delayed_data_ref+0x164/0xd0c [ 54.755114][ T5223] btrfs_free_extent+0x2d8/0x400 [ 54.755898][ T5223] btrfs_drop_extents+0x1144/0x21a4 [ 54.756705][ T5223] btrfs_replace_file_extents+0x328/0x1290 [ 54.757577][ T5223] __btrfs_prealloc_file_range+0x390/0xb88 [ 54.758510][ T5223] btrfs_prealloc_file_range+0x60/0x7c [ 54.759338][ T5223] btrfs_zero_range+0xc28/0xe94 [ 54.760064][ T5223] btrfs_fallocate+0x8b0/0x1614 [ 54.760830][ T5223] vfs_fallocate+0x4a4/0x5f4 [ 54.761566][ T5223] __arm64_sys_fallocate+0xc0/0x110 [ 54.762413][ T5223] invoke_syscall+0x98/0x2b8 [ 54.763135][ T5223] el0_svc_common+0x138/0x258 [ 54.763864][ T5223] do_el0_svc+0x58/0x14c [ 54.764483][ T5223] el0_svc+0x78/0x1e0 [ 54.765076][ T5223] el0t_64_sync_handler+0xcc/0xe4 [ 54.765833][ T5223] el0t_64_sync+0x1a0/0x1a4 [ 54.768695][ T5223] ------------[ cut here ]------------ [ 54.769636][ T5223] WARNING: CPU: 1 PID: 5223 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 54.771162][ T5223] Modules linked in: [ 54.771742][ T5223] CPU: 1 PID: 5223 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.773190][ T5223] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 54.774788][ T5223] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.775974][ T5223] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 54.776834][ T5223] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 54.777613][ T5223] sp : ffff8000216471c0 [ 54.778277][ T5223] x29: ffff800021647480 x28: 00000000fffffff4 x27: ffff0000ce028d90 [ 54.779486][ T5223] x26: ffff0000cdf78510 x25: 0000000000011000 x24: dfff800000000000 [ 54.780843][ T5223] x23: 0000000000011000 x22: ffff800021647300 x21: 0000000000000107 [ 54.782279][ T5223] x20: 1fffe0001bd4a3ef x19: ffff0000dea51f78 x18: 0000000000000001 [ 54.783619][ T5223] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 54.784903][ T5223] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 54.786207][ T5223] x11: 0000000000000000 x10: 0000000000000000 x9 : 7d46cbc5227bf900 [ 54.787604][ T5223] x8 : 7d46cbc5227bf900 x7 : 0000000000000001 x6 : 0000000000000001 [ 54.788885][ T5223] x5 : ffff800021646ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 54.790221][ T5223] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 54.791553][ T5223] Call trace: [ 54.792044][ T5223] btrfs_drop_extents+0x1d88/0x21a4 [ 54.792889][ T5223] btrfs_replace_file_extents+0x328/0x1290 [ 54.793847][ T5223] __btrfs_prealloc_file_range+0x390/0xb88 [ 54.794831][ T5223] btrfs_prealloc_file_range+0x60/0x7c [ 54.795718][ T5223] btrfs_zero_range+0xc28/0xe94 [ 54.796523][ T5223] btrfs_fallocate+0x8b0/0x1614 [ 54.797317][ T5223] vfs_fallocate+0x4a4/0x5f4 [ 54.798043][ T5223] __arm64_sys_fallocate+0xc0/0x110 [ 54.798868][ T5223] invoke_syscall+0x98/0x2b8 [ 54.799664][ T5223] el0_svc_common+0x138/0x258 [ 54.800430][ T5223] do_el0_svc+0x58/0x14c [ 54.801083][ T5223] el0_svc+0x78/0x1e0 [ 54.801728][ T5223] el0t_64_sync_handler+0xcc/0xe4 [ 54.802593][ T5223] el0t_64_sync+0x1a0/0x1a4 [ 54.803311][ T5223] irq event stamp: 80004 [ 54.803981][ T5223] hardirqs last enabled at (80003): [] __up_console_sem+0xb4/0x100 [ 54.805510][ T5223] hardirqs last disabled at (80004): [] el1_dbg+0x24/0x80 [ 54.807033][ T5223] softirqs last enabled at (79984): [] handle_softirqs+0xa4c/0xbf0 [ 54.808681][ T5223] softirqs last disabled at (79975): [] __irq_exit_rcu+0x240/0x440 [ 54.810118][ T5223] ---[ end trace b8ea50274e5dfe46 ]--- [ 54.811871][ T5223] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 54.813660][ T5223] BTRFS info (device loop0): forced readonly [ 54.814582][ T5223] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 54.998872][ T5244] loop0: detected capacity change from 0 to 32768 [ 55.001525][ T5244] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5244) [ 55.005852][ T5244] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 55.007463][ T5244] BTRFS info (device loop0): using free space tree [ 55.008610][ T5244] BTRFS info (device loop0): has skinny extents [ 55.021203][ T5244] BTRFS info (device loop0): enabling ssd optimizations [ 55.025076][ T5244] FAULT_INJECTION: forcing a failure. [ 55.025076][ T5244] name failslab, interval 1, probability 0, space 0, times 0 [ 55.027203][ T5244] CPU: 0 PID: 5244 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.028678][ T5244] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 55.030335][ T5244] Call trace: [ 55.030891][ T5244] dump_backtrace+0x0/0x43c [ 55.031698][ T5244] show_stack+0x2c/0x3c [ 55.032290][ T5244] __dump_stack+0x30/0x40 [ 55.032998][ T5244] dump_stack_lvl+0xf8/0x160 [ 55.033717][ T5244] dump_stack+0x1c/0x5c [ 55.034398][ T5244] should_fail+0x3c0/0x51c [ 55.035155][ T5244] __should_failslab+0xbc/0x10c [ 55.035964][ T5244] should_failslab+0x10/0x28 [ 55.036672][ T5244] slab_pre_alloc_hook+0x64/0xec [ 55.037460][ T5244] kmem_cache_alloc+0x94/0x3e4 [ 55.038240][ T5244] btrfs_add_delayed_data_ref+0x164/0xd0c [ 55.039149][ T5244] btrfs_free_extent+0x2d8/0x400 [ 55.039932][ T5244] btrfs_drop_extents+0x1144/0x21a4 [ 55.040801][ T5244] btrfs_replace_file_extents+0x328/0x1290 [ 55.041687][ T5244] __btrfs_prealloc_file_range+0x390/0xb88 [ 55.042617][ T5244] btrfs_prealloc_file_range+0x60/0x7c [ 55.043522][ T5244] btrfs_zero_range+0xc28/0xe94 [ 55.044313][ T5244] btrfs_fallocate+0x8b0/0x1614 [ 55.045151][ T5244] vfs_fallocate+0x4a4/0x5f4 [ 55.045952][ T5244] __arm64_sys_fallocate+0xc0/0x110 [ 55.046794][ T5244] invoke_syscall+0x98/0x2b8 [ 55.047496][ T5244] el0_svc_common+0x138/0x258 [ 55.048304][ T5244] do_el0_svc+0x58/0x14c [ 55.048973][ T5244] el0_svc+0x78/0x1e0 [ 55.049579][ T5244] el0t_64_sync_handler+0xcc/0xe4 [ 55.050431][ T5244] el0t_64_sync+0x1a0/0x1a4 [ 55.051342][ T5244] ------------[ cut here ]------------ [ 55.052297][ T5244] WARNING: CPU: 0 PID: 5244 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 55.053703][ T5244] Modules linked in: [ 55.054274][ T5244] CPU: 0 PID: 5244 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.055779][ T5244] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 55.057339][ T5244] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.058624][ T5244] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 55.059563][ T5244] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 55.060439][ T5244] sp : ffff8000219171c0 [ 55.061051][ T5244] x29: ffff800021917480 x28: 00000000fffffff4 x27: ffff0000d40ab740 [ 55.062338][ T5244] x26: ffff0000c84d5460 x25: 0000000000011000 x24: dfff800000000000 [ 55.063516][ T5244] x23: 0000000000011000 x22: ffff800021917300 x21: 0000000000000107 [ 55.064793][ T5244] x20: 1fffe0001bd78713 x19: ffff0000debc3898 x18: 0000000000000001 [ 55.066056][ T5244] x17: 0000000000000000 x16: ffff800008302168 x15: 00000000ffffffff [ 55.067346][ T5244] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 55.068601][ T5244] x11: 0000000000000000 x10: 0000000000000000 x9 : 09639237447a4a00 [ 55.069835][ T5244] x8 : 09639237447a4a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.071036][ T5244] x5 : ffff800021916ab8 x4 : ffff80001425f420 x3 : ffff800008302278 [ 55.072277][ T5244] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.073438][ T5244] Call trace: [ 55.073920][ T5244] btrfs_drop_extents+0x1d88/0x21a4 [ 55.074633][ T5244] btrfs_replace_file_extents+0x328/0x1290 [ 55.075467][ T5244] __btrfs_prealloc_file_range+0x390/0xb88 [ 55.076317][ T5244] btrfs_prealloc_file_range+0x60/0x7c [ 55.077109][ T5244] btrfs_zero_range+0xc28/0xe94 [ 55.077892][ T5244] btrfs_fallocate+0x8b0/0x1614 [ 55.078630][ T5244] vfs_fallocate+0x4a4/0x5f4 [ 55.079375][ T5244] __arm64_sys_fallocate+0xc0/0x110 [ 55.080132][ T5244] invoke_syscall+0x98/0x2b8 [ 55.080875][ T5244] el0_svc_common+0x138/0x258 [ 55.081596][ T5244] do_el0_svc+0x58/0x14c [ 55.082275][ T5244] el0_svc+0x78/0x1e0 [ 55.082933][ T5244] el0t_64_sync_handler+0xcc/0xe4 [ 55.083680][ T5244] el0t_64_sync+0x1a0/0x1a4 [ 55.084380][ T5244] irq event stamp: 80320 [ 55.085062][ T5244] hardirqs last enabled at (80319): [] __up_console_sem+0xb4/0x100 [ 55.086632][ T5244] hardirqs last disabled at (80320): [] el1_dbg+0x24/0x80 [ 55.087944][ T5244] softirqs last enabled at (80300): [] handle_softirqs+0xa4c/0xbf0 [ 55.089375][ T5244] softirqs last disabled at (80287): [] __irq_exit_rcu+0x240/0x440 [ 55.090783][ T5244] ---[ end trace b8ea50274e5dfe47 ]--- [ 55.091799][ T5244] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 55.093384][ T5244] BTRFS info (device loop0): forced readonly [ 55.094307][ T5244] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 55.292374][ T5265] loop0: detected capacity change from 0 to 32768 [ 55.295000][ T5265] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5265) [ 55.299745][ T5265] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 55.301235][ T5265] BTRFS info (device loop0): using free space tree [ 55.302405][ T5265] BTRFS info (device loop0): has skinny extents [ 55.310347][ T5265] BTRFS info (device loop0): enabling ssd optimizations [ 55.314044][ T5265] FAULT_INJECTION: forcing a failure. [ 55.314044][ T5265] name failslab, interval 1, probability 0, space 0, times 0 [ 55.316256][ T5265] CPU: 0 PID: 5265 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.317690][ T5265] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 55.319431][ T5265] Call trace: [ 55.319914][ T5265] dump_backtrace+0x0/0x43c [ 55.320658][ T5265] show_stack+0x2c/0x3c [ 55.321328][ T5265] __dump_stack+0x30/0x40 [ 55.322083][ T5265] dump_stack_lvl+0xf8/0x160 [ 55.322876][ T5265] dump_stack+0x1c/0x5c [ 55.323554][ T5265] should_fail+0x3c0/0x51c [ 55.324292][ T5265] __should_failslab+0xbc/0x10c [ 55.325059][ T5265] should_failslab+0x10/0x28 [ 55.325795][ T5265] slab_pre_alloc_hook+0x64/0xec [ 55.326663][ T5265] kmem_cache_alloc+0x94/0x3e4 [ 55.327448][ T5265] btrfs_add_delayed_data_ref+0x164/0xd0c [ 55.328454][ T5265] btrfs_free_extent+0x2d8/0x400 [ 55.329250][ T5265] btrfs_drop_extents+0x1144/0x21a4 [ 55.330061][ T5265] btrfs_replace_file_extents+0x328/0x1290 [ 55.331028][ T5265] __btrfs_prealloc_file_range+0x390/0xb88 [ 55.332020][ T5265] btrfs_prealloc_file_range+0x60/0x7c [ 55.332865][ T5265] btrfs_zero_range+0xc28/0xe94 [ 55.333577][ T5265] btrfs_fallocate+0x8b0/0x1614 [ 55.334329][ T5265] vfs_fallocate+0x4a4/0x5f4 [ 55.334984][ T5265] __arm64_sys_fallocate+0xc0/0x110 [ 55.335853][ T5265] invoke_syscall+0x98/0x2b8 [ 55.336636][ T5265] el0_svc_common+0x138/0x258 [ 55.337379][ T5265] do_el0_svc+0x58/0x14c [ 55.338067][ T5265] el0_svc+0x78/0x1e0 [ 55.338688][ T5265] el0t_64_sync_handler+0xcc/0xe4 [ 55.339490][ T5265] el0t_64_sync+0x1a0/0x1a4 [ 55.340404][ T5265] ------------[ cut here ]------------ [ 55.341457][ T5265] WARNING: CPU: 0 PID: 5265 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 55.342922][ T5265] Modules linked in: [ 55.343518][ T5265] CPU: 0 PID: 5265 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.345117][ T5265] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 55.346603][ T5265] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.347757][ T5265] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 55.348683][ T5265] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 55.349601][ T5265] sp : ffff8000216471c0 [ 55.350257][ T5265] x29: ffff800021647480 x28: 00000000fffffff4 x27: ffff0000c7a01d10 [ 55.351519][ T5265] x26: ffff0000d9dcb720 x25: 0000000000011000 x24: dfff800000000000 [ 55.352815][ T5265] x23: 0000000000011000 x22: ffff800021647300 x21: 0000000000000107 [ 55.354048][ T5265] x20: 1fffe0001bd786a5 x19: ffff0000debc3528 x18: 0000000000000001 [ 55.355400][ T5265] x17: 0000000000000000 x16: ffff800008302168 x15: 00000000ffffffff [ 55.356676][ T5265] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 55.357964][ T5265] x11: 0000000000000000 x10: 0000000000000000 x9 : 1b9afa54fb0def00 [ 55.359213][ T5265] x8 : 1b9afa54fb0def00 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.360586][ T5265] x5 : ffff800021646ab8 x4 : ffff80001425f420 x3 : ffff800008302278 [ 55.362005][ T5265] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.363391][ T5265] Call trace: [ 55.363938][ T5265] btrfs_drop_extents+0x1d88/0x21a4 [ 55.364748][ T5265] btrfs_replace_file_extents+0x328/0x1290 [ 55.365671][ T5265] __btrfs_prealloc_file_range+0x390/0xb88 [ 55.366629][ T5265] btrfs_prealloc_file_range+0x60/0x7c [ 55.367558][ T5265] btrfs_zero_range+0xc28/0xe94 [ 55.368359][ T5265] btrfs_fallocate+0x8b0/0x1614 [ 55.369126][ T5265] vfs_fallocate+0x4a4/0x5f4 [ 55.369805][ T5265] __arm64_sys_fallocate+0xc0/0x110 [ 55.370588][ T5265] invoke_syscall+0x98/0x2b8 [ 55.371268][ T5265] el0_svc_common+0x138/0x258 [ 55.371918][ T5265] do_el0_svc+0x58/0x14c [ 55.372509][ T5265] el0_svc+0x78/0x1e0 [ 55.373082][ T5265] el0t_64_sync_handler+0xcc/0xe4 [ 55.373872][ T5265] el0t_64_sync+0x1a0/0x1a4 [ 55.374524][ T5265] irq event stamp: 80112 [ 55.375092][ T5265] hardirqs last enabled at (80111): [] __up_console_sem+0xb4/0x100 [ 55.376562][ T5265] hardirqs last disabled at (80112): [] el1_dbg+0x24/0x80 [ 55.377791][ T5265] softirqs last enabled at (80092): [] handle_softirqs+0xa4c/0xbf0 [ 55.379260][ T5265] softirqs last disabled at (80075): [] __irq_exit_rcu+0x240/0x440 [ 55.380669][ T5265] ---[ end trace b8ea50274e5dfe48 ]--- [ 55.381734][ T5265] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 55.383341][ T5265] BTRFS info (device loop0): forced readonly [ 55.384301][ T5265] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 55.583001][ T5287] loop0: detected capacity change from 0 to 32768 [ 55.585614][ T5287] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5287) [ 55.590975][ T5287] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 55.592538][ T5287] BTRFS info (device loop0): using free space tree [ 55.593656][ T5287] BTRFS info (device loop0): has skinny extents [ 55.602431][ T5287] BTRFS info (device loop0): enabling ssd optimizations [ 55.606528][ T5287] FAULT_INJECTION: forcing a failure. [ 55.606528][ T5287] name failslab, interval 1, probability 0, space 0, times 0 [ 55.609566][ T5287] CPU: 1 PID: 5287 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.610970][ T5287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 55.612569][ T5287] Call trace: [ 55.613088][ T5287] dump_backtrace+0x0/0x43c [ 55.613779][ T5287] show_stack+0x2c/0x3c [ 55.614452][ T5287] __dump_stack+0x30/0x40 [ 55.615167][ T5287] dump_stack_lvl+0xf8/0x160 [ 55.615892][ T5287] dump_stack+0x1c/0x5c [ 55.616504][ T5287] should_fail+0x3c0/0x51c [ 55.617236][ T5287] __should_failslab+0xbc/0x10c [ 55.618128][ T5287] should_failslab+0x10/0x28 [ 55.618872][ T5287] slab_pre_alloc_hook+0x64/0xec [ 55.619637][ T5287] kmem_cache_alloc+0x94/0x3e4 [ 55.620350][ T5287] btrfs_add_delayed_data_ref+0x164/0xd0c [ 55.621150][ T5287] btrfs_free_extent+0x2d8/0x400 [ 55.621979][ T5287] btrfs_drop_extents+0x1144/0x21a4 [ 55.622905][ T5287] btrfs_replace_file_extents+0x328/0x1290 [ 55.623879][ T5287] __btrfs_prealloc_file_range+0x390/0xb88 [ 55.624794][ T5287] btrfs_prealloc_file_range+0x60/0x7c [ 55.625703][ T5287] btrfs_zero_range+0xc28/0xe94 [ 55.626544][ T5287] btrfs_fallocate+0x8b0/0x1614 [ 55.627306][ T5287] vfs_fallocate+0x4a4/0x5f4 [ 55.628070][ T5287] __arm64_sys_fallocate+0xc0/0x110 [ 55.628961][ T5287] invoke_syscall+0x98/0x2b8 [ 55.629699][ T5287] el0_svc_common+0x138/0x258 [ 55.630515][ T5287] do_el0_svc+0x58/0x14c [ 55.631236][ T5287] el0_svc+0x78/0x1e0 [ 55.631876][ T5287] el0t_64_sync_handler+0xcc/0xe4 [ 55.632625][ T5287] el0t_64_sync+0x1a0/0x1a4 [ 55.636277][ T5287] ------------[ cut here ]------------ [ 55.637330][ T5287] WARNING: CPU: 1 PID: 5287 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 55.638710][ T5287] Modules linked in: [ 55.639274][ T5287] CPU: 1 PID: 5287 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.640845][ T5287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 55.642459][ T5287] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.643591][ T5287] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 55.644469][ T5287] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 55.645336][ T5287] sp : ffff800021b671c0 [ 55.646033][ T5287] x29: ffff800021b67480 x28: 00000000fffffff4 x27: ffff0000c7a003e0 [ 55.647314][ T5287] x26: ffff0000cdf789e0 x25: 0000000000011000 x24: dfff800000000000 [ 55.648624][ T5287] x23: 0000000000011000 x22: ffff800021b67300 x21: 0000000000000107 [ 55.650019][ T5287] x20: 1fffe0001bd2ef97 x19: ffff0000de977cb8 x18: 0000000000000001 [ 55.651382][ T5287] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 55.652806][ T5287] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 55.654187][ T5287] x11: 0000000000000000 x10: 0000000000000000 x9 : 60e4af654738e900 [ 55.655627][ T5287] x8 : 60e4af654738e900 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.656949][ T5287] x5 : ffff800021b66ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 55.658212][ T5287] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.659552][ T5287] Call trace: [ 55.660117][ T5287] btrfs_drop_extents+0x1d88/0x21a4 [ 55.660952][ T5287] btrfs_replace_file_extents+0x328/0x1290 [ 55.661883][ T5287] __btrfs_prealloc_file_range+0x390/0xb88 [ 55.662811][ T5287] btrfs_prealloc_file_range+0x60/0x7c [ 55.663621][ T5287] btrfs_zero_range+0xc28/0xe94 [ 55.664338][ T5287] btrfs_fallocate+0x8b0/0x1614 [ 55.665110][ T5287] vfs_fallocate+0x4a4/0x5f4 [ 55.665835][ T5287] __arm64_sys_fallocate+0xc0/0x110 [ 55.666684][ T5287] invoke_syscall+0x98/0x2b8 [ 55.667415][ T5287] el0_svc_common+0x138/0x258 [ 55.668073][ T5287] do_el0_svc+0x58/0x14c [ 55.668755][ T5287] el0_svc+0x78/0x1e0 [ 55.669401][ T5287] el0t_64_sync_handler+0xcc/0xe4 [ 55.670153][ T5287] el0t_64_sync+0x1a0/0x1a4 [ 55.670878][ T5287] irq event stamp: 79450 [ 55.671520][ T5287] hardirqs last enabled at (79449): [] __up_console_sem+0xb4/0x100 [ 55.672980][ T5287] hardirqs last disabled at (79450): [] el1_dbg+0x24/0x80 [ 55.674302][ T5287] softirqs last enabled at (79430): [] handle_softirqs+0xa4c/0xbf0 [ 55.675807][ T5287] softirqs last disabled at (79335): [] __irq_exit_rcu+0x240/0x440 [ 55.677206][ T5287] ---[ end trace b8ea50274e5dfe49 ]--- [ 55.679217][ T5287] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 55.680707][ T5287] BTRFS info (device loop0): forced readonly [ 55.681646][ T5287] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 55.880378][ T5308] loop0: detected capacity change from 0 to 32768 [ 55.882572][ T5308] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5308) [ 55.888697][ T5308] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 55.890179][ T5308] BTRFS info (device loop0): using free space tree [ 55.891213][ T5308] BTRFS info (device loop0): has skinny extents [ 55.900845][ T5308] BTRFS info (device loop0): enabling ssd optimizations [ 55.904815][ T5308] FAULT_INJECTION: forcing a failure. [ 55.904815][ T5308] name failslab, interval 1, probability 0, space 0, times 0 [ 55.906955][ T5308] CPU: 0 PID: 5308 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.908248][ T5308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 55.909611][ T5308] Call trace: [ 55.910106][ T5308] dump_backtrace+0x0/0x43c [ 55.910882][ T5308] show_stack+0x2c/0x3c [ 55.911635][ T5308] __dump_stack+0x30/0x40 [ 55.912334][ T5308] dump_stack_lvl+0xf8/0x160 [ 55.913115][ T5308] dump_stack+0x1c/0x5c [ 55.913758][ T5308] should_fail+0x3c0/0x51c [ 55.914501][ T5308] __should_failslab+0xbc/0x10c [ 55.915240][ T5308] should_failslab+0x10/0x28 [ 55.915977][ T5308] slab_pre_alloc_hook+0x64/0xec [ 55.916758][ T5308] kmem_cache_alloc+0x94/0x3e4 [ 55.917534][ T5308] btrfs_add_delayed_data_ref+0x164/0xd0c [ 55.918479][ T5308] btrfs_free_extent+0x2d8/0x400 [ 55.919269][ T5308] btrfs_drop_extents+0x1144/0x21a4 [ 55.920100][ T5308] btrfs_replace_file_extents+0x328/0x1290 [ 55.921050][ T5308] __btrfs_prealloc_file_range+0x390/0xb88 [ 55.921982][ T5308] btrfs_prealloc_file_range+0x60/0x7c [ 55.922903][ T5308] btrfs_zero_range+0xc28/0xe94 [ 55.923685][ T5308] btrfs_fallocate+0x8b0/0x1614 [ 55.924510][ T5308] vfs_fallocate+0x4a4/0x5f4 [ 55.925233][ T5308] __arm64_sys_fallocate+0xc0/0x110 [ 55.926061][ T5308] invoke_syscall+0x98/0x2b8 [ 55.926777][ T5308] el0_svc_common+0x138/0x258 [ 55.927440][ T5308] do_el0_svc+0x58/0x14c [ 55.928125][ T5308] el0_svc+0x78/0x1e0 [ 55.928790][ T5308] el0t_64_sync_handler+0xcc/0xe4 [ 55.929694][ T5308] el0t_64_sync+0x1a0/0x1a4 [ 55.931267][ T5308] ------------[ cut here ]------------ [ 55.932337][ T5308] WARNING: CPU: 0 PID: 5308 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 55.933838][ T5308] Modules linked in: [ 55.934442][ T5308] CPU: 0 PID: 5308 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.935938][ T5308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 55.937552][ T5308] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.938829][ T5308] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 55.939775][ T5308] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 55.940703][ T5308] sp : ffff800021c271c0 [ 55.941398][ T5308] x29: ffff800021c27480 x28: 00000000fffffff4 x27: ffff0000d6494f80 [ 55.942778][ T5308] x26: ffff0000cd04a670 x25: 0000000000011000 x24: dfff800000000000 [ 55.944199][ T5308] x23: 0000000000011000 x22: ffff800021c27300 x21: 0000000000000107 [ 55.945582][ T5308] x20: 1fffe0001bd7868f x19: ffff0000debc3478 x18: 0000000000000001 [ 55.946865][ T5308] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 55.948137][ T5308] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 55.949448][ T5308] x11: 0000000000000000 x10: 0000000000000000 x9 : 67888bb75882c800 [ 55.950797][ T5308] x8 : 67888bb75882c800 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.952104][ T5308] x5 : ffff800021c26ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 55.953406][ T5308] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.954729][ T5308] Call trace: [ 55.955250][ T5308] btrfs_drop_extents+0x1d88/0x21a4 [ 55.956103][ T5308] btrfs_replace_file_extents+0x328/0x1290 [ 55.957047][ T5308] __btrfs_prealloc_file_range+0x390/0xb88 [ 55.957971][ T5308] btrfs_prealloc_file_range+0x60/0x7c [ 55.958814][ T5308] btrfs_zero_range+0xc28/0xe94 [ 55.959602][ T5308] btrfs_fallocate+0x8b0/0x1614 [ 55.960435][ T5308] vfs_fallocate+0x4a4/0x5f4 [ 55.961161][ T5308] __arm64_sys_fallocate+0xc0/0x110 [ 55.961983][ T5308] invoke_syscall+0x98/0x2b8 [ 55.962677][ T5308] el0_svc_common+0x138/0x258 [ 55.963343][ T5308] do_el0_svc+0x58/0x14c [ 55.963931][ T5308] el0_svc+0x78/0x1e0 [ 55.964545][ T5308] el0t_64_sync_handler+0xcc/0xe4 [ 55.965315][ T5308] el0t_64_sync+0x1a0/0x1a4 [ 55.966007][ T5308] irq event stamp: 79678 [ 55.966683][ T5308] hardirqs last enabled at (79677): [] __up_console_sem+0xb4/0x100 [ 55.968163][ T5308] hardirqs last disabled at (79678): [] el1_dbg+0x24/0x80 [ 55.969647][ T5308] softirqs last enabled at (79658): [] handle_softirqs+0xa4c/0xbf0 [ 55.971120][ T5308] softirqs last disabled at (79631): [] __irq_exit_rcu+0x240/0x440 [ 55.972597][ T5308] ---[ end trace b8ea50274e5dfe4a ]--- [ 55.974321][ T5308] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 55.975724][ T5308] BTRFS info (device loop0): forced readonly [ 55.976698][ T5308] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory 1970/01/01 00:00:55 executed programs: 31 [ 56.171551][ T5329] loop0: detected capacity change from 0 to 32768 [ 56.173866][ T5329] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5329) [ 56.177362][ T5329] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 56.179002][ T5329] BTRFS info (device loop0): using free space tree [ 56.179969][ T5329] BTRFS info (device loop0): has skinny extents [ 56.192548][ T5329] BTRFS info (device loop0): enabling ssd optimizations [ 56.196589][ T5329] FAULT_INJECTION: forcing a failure. [ 56.196589][ T5329] name failslab, interval 1, probability 0, space 0, times 0 [ 56.199185][ T5329] CPU: 0 PID: 5329 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.200683][ T5329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 56.202338][ T5329] Call trace: [ 56.202850][ T5329] dump_backtrace+0x0/0x43c [ 56.203595][ T5329] show_stack+0x2c/0x3c [ 56.204296][ T5329] __dump_stack+0x30/0x40 [ 56.205057][ T5329] dump_stack_lvl+0xf8/0x160 [ 56.205821][ T5329] dump_stack+0x1c/0x5c [ 56.206444][ T5329] should_fail+0x3c0/0x51c [ 56.207109][ T5329] __should_failslab+0xbc/0x10c [ 56.207957][ T5329] should_failslab+0x10/0x28 [ 56.208677][ T5329] slab_pre_alloc_hook+0x64/0xec [ 56.209505][ T5329] kmem_cache_alloc+0x94/0x3e4 [ 56.210376][ T5329] btrfs_add_delayed_data_ref+0x164/0xd0c [ 56.211272][ T5329] btrfs_free_extent+0x2d8/0x400 [ 56.212074][ T5329] btrfs_drop_extents+0x1144/0x21a4 [ 56.212935][ T5329] btrfs_replace_file_extents+0x328/0x1290 [ 56.213908][ T5329] __btrfs_prealloc_file_range+0x390/0xb88 [ 56.214817][ T5329] btrfs_prealloc_file_range+0x60/0x7c [ 56.215640][ T5329] btrfs_zero_range+0xc28/0xe94 [ 56.216376][ T5329] btrfs_fallocate+0x8b0/0x1614 [ 56.217114][ T5329] vfs_fallocate+0x4a4/0x5f4 [ 56.217839][ T5329] __arm64_sys_fallocate+0xc0/0x110 [ 56.218701][ T5329] invoke_syscall+0x98/0x2b8 [ 56.219477][ T5329] el0_svc_common+0x138/0x258 [ 56.220283][ T5329] do_el0_svc+0x58/0x14c [ 56.220980][ T5329] el0_svc+0x78/0x1e0 [ 56.221638][ T5329] el0t_64_sync_handler+0xcc/0xe4 [ 56.222491][ T5329] el0t_64_sync+0x1a0/0x1a4 [ 56.225851][ T5329] ------------[ cut here ]------------ [ 56.226877][ T5329] WARNING: CPU: 0 PID: 5329 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 56.228426][ T5329] Modules linked in: [ 56.229022][ T5329] CPU: 0 PID: 5329 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.230518][ T5329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 56.232185][ T5329] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.233482][ T5329] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 56.234415][ T5329] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 56.235311][ T5329] sp : ffff800021da71c0 [ 56.235937][ T5329] x29: ffff800021da7480 x28: 00000000fffffff4 x27: ffff0000d807ed90 [ 56.237167][ T5329] x26: ffff0000c97f6d50 x25: 0000000000011000 x24: dfff800000000000 [ 56.238311][ T5329] x23: 0000000000011000 x22: ffff800021da7300 x21: 0000000000000107 [ 56.239680][ T5329] x20: 1fffe0001bd7864d x19: ffff0000debc3268 x18: 0000000000000001 [ 56.240991][ T5329] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 56.242342][ T5329] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 56.243698][ T5329] x11: 0000000000000000 x10: 0000000000000000 x9 : 54e215a056d60400 [ 56.245042][ T5329] x8 : 54e215a056d60400 x7 : 0000000000000001 x6 : 0000000000000001 [ 56.246270][ T5329] x5 : ffff800021da6ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 56.247545][ T5329] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 56.248814][ T5329] Call trace: [ 56.249355][ T5329] btrfs_drop_extents+0x1d88/0x21a4 [ 56.250176][ T5329] btrfs_replace_file_extents+0x328/0x1290 [ 56.251139][ T5329] __btrfs_prealloc_file_range+0x390/0xb88 [ 56.252096][ T5329] btrfs_prealloc_file_range+0x60/0x7c [ 56.252954][ T5329] btrfs_zero_range+0xc28/0xe94 [ 56.253758][ T5329] btrfs_fallocate+0x8b0/0x1614 [ 56.254480][ T5329] vfs_fallocate+0x4a4/0x5f4 [ 56.255231][ T5329] __arm64_sys_fallocate+0xc0/0x110 [ 56.256067][ T5329] invoke_syscall+0x98/0x2b8 [ 56.256781][ T5329] el0_svc_common+0x138/0x258 [ 56.257482][ T5329] do_el0_svc+0x58/0x14c [ 56.258197][ T5329] el0_svc+0x78/0x1e0 [ 56.258839][ T5329] el0t_64_sync_handler+0xcc/0xe4 [ 56.259615][ T5329] el0t_64_sync+0x1a0/0x1a4 [ 56.260309][ T5329] irq event stamp: 80150 [ 56.261017][ T5329] hardirqs last enabled at (80149): [] __up_console_sem+0xb4/0x100 [ 56.262663][ T5329] hardirqs last disabled at (80150): [] el1_dbg+0x24/0x80 [ 56.264165][ T5329] softirqs last enabled at (80130): [] handle_softirqs+0xa4c/0xbf0 [ 56.265687][ T5329] softirqs last disabled at (80025): [] __irq_exit_rcu+0x240/0x440 [ 56.267269][ T5329] ---[ end trace b8ea50274e5dfe4b ]--- [ 56.268973][ T5329] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 56.270414][ T5329] BTRFS info (device loop0): forced readonly [ 56.271364][ T5329] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 56.452372][ T5350] loop0: detected capacity change from 0 to 32768 [ 56.454879][ T5350] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5350) [ 56.459553][ T5350] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 56.461122][ T5350] BTRFS info (device loop0): using free space tree [ 56.462108][ T5350] BTRFS info (device loop0): has skinny extents [ 56.472763][ T5350] BTRFS info (device loop0): enabling ssd optimizations [ 56.476648][ T5350] FAULT_INJECTION: forcing a failure. [ 56.476648][ T5350] name failslab, interval 1, probability 0, space 0, times 0 [ 56.479092][ T5350] CPU: 0 PID: 5350 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.480632][ T5350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 56.482133][ T5350] Call trace: [ 56.482673][ T5350] dump_backtrace+0x0/0x43c [ 56.483435][ T5350] show_stack+0x2c/0x3c [ 56.484024][ T5350] __dump_stack+0x30/0x40 [ 56.484729][ T5350] dump_stack_lvl+0xf8/0x160 [ 56.485439][ T5350] dump_stack+0x1c/0x5c [ 56.486124][ T5350] should_fail+0x3c0/0x51c [ 56.486817][ T5350] __should_failslab+0xbc/0x10c [ 56.487631][ T5350] should_failslab+0x10/0x28 [ 56.488406][ T5350] slab_pre_alloc_hook+0x64/0xec [ 56.489202][ T5350] kmem_cache_alloc+0x94/0x3e4 [ 56.489948][ T5350] btrfs_add_delayed_data_ref+0x164/0xd0c [ 56.490844][ T5350] btrfs_free_extent+0x2d8/0x400 [ 56.491621][ T5350] btrfs_drop_extents+0x1144/0x21a4 [ 56.492418][ T5350] btrfs_replace_file_extents+0x328/0x1290 [ 56.493398][ T5350] __btrfs_prealloc_file_range+0x390/0xb88 [ 56.494335][ T5350] btrfs_prealloc_file_range+0x60/0x7c [ 56.495251][ T5350] btrfs_zero_range+0xc28/0xe94 [ 56.496082][ T5350] btrfs_fallocate+0x8b0/0x1614 [ 56.496811][ T5350] vfs_fallocate+0x4a4/0x5f4 [ 56.497499][ T5350] __arm64_sys_fallocate+0xc0/0x110 [ 56.498280][ T5350] invoke_syscall+0x98/0x2b8 [ 56.498983][ T5350] el0_svc_common+0x138/0x258 [ 56.499790][ T5350] do_el0_svc+0x58/0x14c [ 56.500464][ T5350] el0_svc+0x78/0x1e0 [ 56.501100][ T5350] el0t_64_sync_handler+0xcc/0xe4 [ 56.501899][ T5350] el0t_64_sync+0x1a0/0x1a4 [ 56.502848][ T5350] ------------[ cut here ]------------ [ 56.503789][ T5350] WARNING: CPU: 0 PID: 5350 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 56.505174][ T5350] Modules linked in: [ 56.505783][ T5350] CPU: 0 PID: 5350 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.507221][ T5350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 56.508798][ T5350] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.509904][ T5350] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 56.510747][ T5350] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 56.511578][ T5350] sp : ffff800021b671c0 [ 56.512197][ T5350] x29: ffff800021b67480 x28: 00000000fffffff4 x27: ffff0000d2a56ba0 [ 56.513391][ T5350] x26: ffff0000cbc0f250 x25: 0000000000011000 x24: dfff800000000000 [ 56.514544][ T5350] x23: 0000000000011000 x22: ffff800021b67300 x21: 0000000000000107 [ 56.515716][ T5350] x20: 1fffe0001bd7860b x19: ffff0000debc3058 x18: 0000000000000001 [ 56.517108][ T5350] x17: 0000000000000000 x16: ffff800008302168 x15: 00000000ffffffff [ 56.518431][ T5350] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 56.519672][ T5350] x11: 0000000000000000 x10: 0000000000000000 x9 : a6dd9c8ec9c67a00 [ 56.520937][ T5350] x8 : a6dd9c8ec9c67a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 56.522242][ T5350] x5 : ffff800021b66ab8 x4 : ffff80001425f420 x3 : ffff800008302278 [ 56.523444][ T5350] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 56.524648][ T5350] Call trace: [ 56.525155][ T5350] btrfs_drop_extents+0x1d88/0x21a4 [ 56.526013][ T5350] btrfs_replace_file_extents+0x328/0x1290 [ 56.526912][ T5350] __btrfs_prealloc_file_range+0x390/0xb88 [ 56.527810][ T5350] btrfs_prealloc_file_range+0x60/0x7c [ 56.528607][ T5350] btrfs_zero_range+0xc28/0xe94 [ 56.529319][ T5350] btrfs_fallocate+0x8b0/0x1614 [ 56.530123][ T5350] vfs_fallocate+0x4a4/0x5f4 [ 56.530859][ T5350] __arm64_sys_fallocate+0xc0/0x110 [ 56.531712][ T5350] invoke_syscall+0x98/0x2b8 [ 56.532415][ T5350] el0_svc_common+0x138/0x258 [ 56.533185][ T5350] do_el0_svc+0x58/0x14c [ 56.533923][ T5350] el0_svc+0x78/0x1e0 [ 56.534616][ T5350] el0t_64_sync_handler+0xcc/0xe4 [ 56.535454][ T5350] el0t_64_sync+0x1a0/0x1a4 [ 56.536199][ T5350] irq event stamp: 80540 [ 56.536905][ T5350] hardirqs last enabled at (80539): [] __up_console_sem+0xb4/0x100 [ 56.538395][ T5350] hardirqs last disabled at (80540): [] el1_dbg+0x24/0x80 [ 56.539799][ T5350] softirqs last enabled at (80520): [] handle_softirqs+0xa4c/0xbf0 [ 56.541230][ T5350] softirqs last disabled at (80471): [] __irq_exit_rcu+0x240/0x440 [ 56.542755][ T5350] ---[ end trace b8ea50274e5dfe4c ]--- [ 56.543830][ T5350] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 56.545397][ T5350] BTRFS info (device loop0): forced readonly [ 56.546277][ T5350] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 56.753858][ T5371] loop0: detected capacity change from 0 to 32768 [ 56.759453][ T5371] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5371) [ 56.764217][ T5371] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 56.765925][ T5371] BTRFS info (device loop0): using free space tree [ 56.767050][ T5371] BTRFS info (device loop0): has skinny extents [ 56.776113][ T5371] BTRFS info (device loop0): enabling ssd optimizations [ 56.780388][ T5371] FAULT_INJECTION: forcing a failure. [ 56.780388][ T5371] name failslab, interval 1, probability 0, space 0, times 0 [ 56.782325][ T5371] CPU: 1 PID: 5371 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.783660][ T5371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 56.785333][ T5371] Call trace: [ 56.785877][ T5371] dump_backtrace+0x0/0x43c [ 56.786598][ T5371] show_stack+0x2c/0x3c [ 56.787293][ T5371] __dump_stack+0x30/0x40 [ 56.788002][ T5371] dump_stack_lvl+0xf8/0x160 [ 56.788730][ T5371] dump_stack+0x1c/0x5c [ 56.789406][ T5371] should_fail+0x3c0/0x51c [ 56.790163][ T5371] __should_failslab+0xbc/0x10c [ 56.790941][ T5371] should_failslab+0x10/0x28 [ 56.791666][ T5371] slab_pre_alloc_hook+0x64/0xec [ 56.792455][ T5371] kmem_cache_alloc+0x94/0x3e4 [ 56.793217][ T5371] btrfs_add_delayed_data_ref+0x164/0xd0c [ 56.794146][ T5371] btrfs_free_extent+0x2d8/0x400 [ 56.794942][ T5371] btrfs_drop_extents+0x1144/0x21a4 [ 56.795836][ T5371] btrfs_replace_file_extents+0x328/0x1290 [ 56.796823][ T5371] __btrfs_prealloc_file_range+0x390/0xb88 [ 56.797729][ T5371] btrfs_prealloc_file_range+0x60/0x7c [ 56.798555][ T5371] btrfs_zero_range+0xc28/0xe94 [ 56.799380][ T5371] btrfs_fallocate+0x8b0/0x1614 [ 56.800185][ T5371] vfs_fallocate+0x4a4/0x5f4 [ 56.800967][ T5371] __arm64_sys_fallocate+0xc0/0x110 [ 56.801784][ T5371] invoke_syscall+0x98/0x2b8 [ 56.802562][ T5371] el0_svc_common+0x138/0x258 [ 56.803300][ T5371] do_el0_svc+0x58/0x14c [ 56.803979][ T5371] el0_svc+0x78/0x1e0 [ 56.804589][ T5371] el0t_64_sync_handler+0xcc/0xe4 [ 56.805464][ T5371] el0t_64_sync+0x1a0/0x1a4 [ 56.808464][ T5371] ------------[ cut here ]------------ [ 56.809461][ T5371] WARNING: CPU: 1 PID: 5371 at fs/btrfs/file.c:966 btrfs_drop_extents+0x1d88/0x21a4 [ 56.810886][ T5371] Modules linked in: [ 56.811505][ T5371] CPU: 1 PID: 5371 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.812857][ T5371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 56.814368][ T5371] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.815635][ T5371] pc : btrfs_drop_extents+0x1d88/0x21a4 [ 56.816498][ T5371] lr : btrfs_drop_extents+0x1d88/0x21a4 [ 56.817326][ T5371] sp : ffff800021db71c0 [ 56.817967][ T5371] x29: ffff800021db7480 x28: 00000000fffffff4 x27: ffff0000d64b6ba0 [ 56.819288][ T5371] x26: ffff0000ca6bd460 x25: 0000000000011000 x24: dfff800000000000 [ 56.820641][ T5371] x23: 0000000000011000 x22: ffff800021db7300 x21: 0000000000000107 [ 56.821983][ T5371] x20: 1fffe0001bd2ef6b x19: ffff0000de977b58 x18: 0000000000000001 [ 56.823167][ T5371] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 56.824415][ T5371] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 56.825604][ T5371] x11: 0000000000000000 x10: 0000000000000000 x9 : 5776daf63bff2600 [ 56.826959][ T5371] x8 : 5776daf63bff2600 x7 : 0000000000000001 x6 : 0000000000000001 [ 56.828173][ T5371] x5 : ffff800021db6ab8 x4 : ffff80001425f420 x3 : ffff80000850471c [ 56.829378][ T5371] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 56.830689][ T5371] Call trace: [ 56.831186][ T5371] btrfs_drop_extents+0x1d88/0x21a4 [ 56.832001][ T5371] btrfs_replace_file_extents+0x328/0x1290 [ 56.832881][ T5371] __btrfs_prealloc_file_range+0x390/0xb88 [ 56.833802][ T5371] btrfs_prealloc_file_range+0x60/0x7c [ 56.834650][ T5371] btrfs_zero_range+0xc28/0xe94 [ 56.835326][ T5371] btrfs_fallocate+0x8b0/0x1614 [ 56.836058][ T5371] vfs_fallocate+0x4a4/0x5f4 [ 56.836752][ T5371] __arm64_sys_fallocate+0xc0/0x110 [ 56.837620][ T5371] invoke_syscall+0x98/0x2b8 [ 56.838361][ T5371] el0_svc_common+0x138/0x258 [ 56.839123][ T5371] do_el0_svc+0x58/0x14c [ 56.839781][ T5371] el0_svc+0x78/0x1e0 [ 56.840419][ T5371] el0t_64_sync_handler+0xcc/0xe4 [ 56.841151][ T5371] el0t_64_sync+0x1a0/0x1a4 [ 56.841800][ T5371] irq event stamp: 80316 [ 56.842420][ T5371] hardirqs last enabled at (80315): [] __up_console_sem+0xb4/0x100 [ 56.843773][ T5371] hardirqs last disabled at (80316): [] el1_dbg+0x24/0x80 [ 56.845212][ T5371] softirqs last enabled at (80296): [] handle_softirqs+0xa4c/0xbf0 [ 56.846763][ T5371] softirqs last disabled at (80221): [] __irq_exit_rcu+0x240/0x440 [ 56.848221][ T5371] ---[ end trace b8ea50274e5dfe4d ]--- [ 56.849889][ T5371] BTRFS: error (device loop0) in btrfs_drop_extents:966: errno=-12 Out of memory [ 56.851279][ T5371] BTRFS info (device loop0): forced readonly [ 56.852167][ T5371] BTRFS: error (device loop0) in btrfs_replace_file_extents:2838: errno=-12 Out of memory [ 57.022971][ T5392] loop0: detected capacity change from 0 to 32768 [ 57.027283][ T5392] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5392) [ 57.038419][ T5392] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 57.039855][ T5392] BTRFS info (device loop0): using free space tree [ 57.040912][ T5392] BTRFS info (device loop0): has skinny extents [ 57.052375][ T5392] BTRFS info (device loop0): enabling ssd optimizations [ 57.056692][ T5392] FAULT_INJECTION: forcing a failure. [ 57.056692][ T5392] name failslab, interval 1, probability 0, space 0, times 0 [ 57.059425][ T5392] CPU: 1 PID: 5392 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.060745][ T5392] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 57.062109][ T5392] Call trace: [ 57.062565][ T5392] dump_backtrace+0x0/0x43c [ 57.063207][ T5392] show_stack+0x2c/0x3c [ 57.063790][ T5392] __dump_stack+0x30/0x40 [ 57.064466][ T5392] dump_stack_lvl+0xf8/0x160 [ 57.065169][ T5392] dump_stack+0x1c/0x5c [ 57.065847][ T5392] should_fail+0x3c0/0x51c [ 57.066563][ T5392] __should_failslab+0xbc/0x10c [ 57.067336][ T5392] should_failslab+0x10/0x28 [ 57.068035][ T5392] slab_pre_alloc_hook+0x64/0xec [ 57.068745][ T5392] kmem_cache_alloc+0x94/0x3e4 [ 57.069431][ T5392] alloc_extent_map+0x28/0x128 [ 57.070137][ T5392] btrfs_drop_extent_cache+0x160/0xdec [ 57.070914][ T5392] btrfs_drop_extents+0x2c8/0x21a4 [ 57.071675][ T5392] btrfs_replace_file_extents+0x328/0x1290 [ 57.072572][ T5392] __btrfs_prealloc_file_range+0x390/0xb88 [ 57.073421][ T5392] btrfs_prealloc_file_range+0x60/0x7c [ 57.074195][ T5392] btrfs_zero_range+0xc28/0xe94 [ 57.074886][ T5392] btrfs_fallocate+0x8b0/0x1614 [ 57.075651][ T5392] vfs_fallocate+0x4a4/0x5f4 [ 57.076326][ T5392] __arm64_sys_fallocate+0xc0/0x110 [ 57.077152][ T5392] invoke_syscall+0x98/0x2b8 [ 57.077836][ T5392] el0_svc_common+0x138/0x258 [ 57.078574][ T5392] do_el0_svc+0x58/0x14c [ 57.079189][ T5392] el0_svc+0x78/0x1e0 [ 57.079808][ T5392] el0t_64_sync_handler+0xcc/0xe4 [ 57.080603][ T5392] el0t_64_sync+0x1a0/0x1a4