Warning: Permanently added '10.128.1.208' (ED25519) to the list of known hosts. 1970/01/01 00:00:46 ignoring optional flag "type"="gce" 1970/01/01 00:00:46 parsed 1 programs [ 46.541609][ T4295] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS 1970/01/01 00:00:46 executed programs: 0 [ 46.604651][ T4301] chnl_net:caif_netlink_parms(): no params data found [ 46.621831][ T4301] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.623003][ T4301] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.624471][ T4301] device bridge_slave_0 entered promiscuous mode [ 46.626379][ T4301] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.627483][ T4301] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.628924][ T4301] device bridge_slave_1 entered promiscuous mode [ 46.636277][ T4301] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 46.638548][ T4301] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 46.646577][ T4301] team0: Port device team_slave_0 added [ 46.648240][ T4301] team0: Port device team_slave_1 added [ 46.654285][ T4301] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 46.655389][ T4301] 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. [ 46.659495][ T4301] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 46.662021][ T4301] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 46.663040][ T4301] 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. [ 46.666867][ T4301] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 46.712134][ T4301] device hsr_slave_0 entered promiscuous mode [ 46.751131][ T4301] device hsr_slave_1 entered promiscuous mode [ 47.367370][ T4301] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 47.402564][ T4301] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 47.433224][ T4301] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 47.472425][ T4301] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 47.521311][ T4301] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.522476][ T4301] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.523657][ T4301] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.524628][ T4301] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.541937][ T4301] 8021q: adding VLAN 0 to HW filter on device bond0 [ 47.545532][ T354] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 47.548296][ T354] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.550043][ T354] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.553141][ T354] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 47.557184][ T4301] 8021q: adding VLAN 0 to HW filter on device team0 [ 47.560407][ T354] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 47.562477][ T354] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.563673][ T354] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.572768][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.574257][ T265] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.575322][ T265] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.577217][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 47.578793][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 47.583097][ T1621] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 47.588499][ T4301] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 47.590106][ T4301] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 47.593211][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 47.594753][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 47.596192][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 47.639336][ T4301] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 47.641999][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 47.643218][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 47.648571][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 47.650081][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 47.656839][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 47.658251][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 47.659997][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 47.661414][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 47.664367][ T4301] device veth0_vlan entered promiscuous mode [ 47.667611][ T4301] device veth1_vlan entered promiscuous mode [ 47.674785][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 47.676291][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 47.677731][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 47.679144][ T265] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 47.682152][ T4301] device veth0_macvtap entered promiscuous mode [ 47.684309][ T4301] device veth1_macvtap entered promiscuous mode [ 47.689268][ T4301] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 47.690434][ T1621] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 47.692028][ T1621] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 47.693756][ T1621] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 47.695299][ T1621] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 47.697932][ T4301] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 47.700062][ T4301] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 47.702096][ T4301] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 47.703527][ T4301] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 47.704956][ T4301] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 47.709519][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 47.711191][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 47.845974][ T4432] loop0: detected capacity change from 0 to 32768 [ 47.854884][ T4432] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4432) [ 47.860163][ T4432] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 47.862199][ T4432] BTRFS info (device loop0): using free space tree [ 47.863124][ T4432] BTRFS info (device loop0): has skinny extents [ 47.926221][ T4432] BTRFS info (device loop0): enabling ssd optimizations [ 47.933878][ T4432] FAULT_INJECTION: forcing a failure. [ 47.933878][ T4432] name failslab, interval 1, probability 0, space 0, times 1 [ 47.936412][ T4432] CPU: 0 PID: 4432 Comm: syz-executor.0 Not tainted syzkaller #0 [ 47.937653][ T4432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 47.939214][ T4432] Call trace: [ 47.939717][ T4432] dump_backtrace+0x0/0x458 [ 47.940461][ T4432] show_stack+0x2c/0x3c [ 47.941091][ T4432] __dump_stack+0x30/0x40 [ 47.941869][ T4432] dump_stack_lvl+0xf4/0x15c [ 47.942584][ T4432] dump_stack+0x1c/0x5c [ 47.943180][ T4432] should_fail+0x3bc/0x514 [ 47.943812][ T4432] __should_failslab+0xbc/0x10c [ 47.944486][ T4432] should_failslab+0x10/0x28 [ 47.945116][ T4432] slab_pre_alloc_hook+0x64/0xe8 [ 47.945902][ T4432] kmem_cache_alloc_trace+0x98/0x3ec [ 47.946656][ T4432] btrfs_alloc_root+0x8c/0x97c [ 47.947405][ T4432] btrfs_create_tree+0x110/0x998 [ 47.948086][ T4432] btrfs_quota_enable+0x37c/0x1674 [ 47.948805][ T4432] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 47.949651][ T4432] btrfs_ioctl+0x96c/0xa8c [ 47.950293][ T4432] __arm64_sys_ioctl+0x14c/0x1c8 [ 47.951028][ T4432] invoke_syscall+0x98/0x2b0 [ 47.951692][ T4432] el0_svc_common+0x138/0x258 [ 47.952408][ T4432] do_el0_svc+0x58/0x13c [ 47.953067][ T4432] el0_svc+0x78/0x1d0 [ 47.953623][ T4432] el0t_64_sync_handler+0xcc/0xe4 [ 47.954414][ T4432] el0t_64_sync+0x1a0/0x1a4 [ 47.956133][ T4432] ------------[ cut here ]------------ [ 47.957155][ T4432] WARNING: CPU: 0 PID: 4432 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 47.958652][ T4432] Modules linked in: [ 47.959290][ T4432] CPU: 0 PID: 4432 Comm: syz-executor.0 Not tainted syzkaller #0 [ 47.960442][ T4432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 47.961994][ T4432] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.963162][ T4432] pc : btrfs_quota_enable+0xff8/0x1674 [ 47.964016][ T4432] lr : btrfs_quota_enable+0xff8/0x1674 [ 47.964832][ T4432] sp : ffff80001ba07ae0 [ 47.965448][ T4432] x29: ffff80001ba07c40 x28: 0000000000001798 x27: ffff700003740f6c [ 47.966645][ T4432] x26: ffff0000dc9d30b0 x25: ffff0000d9fce000 x24: fffffffffffffff4 [ 47.967846][ T4432] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dc9d3108 [ 47.969086][ T4432] x20: 1fffe0001b93a621 x19: ffff0000d05bc000 x18: 0000000000000001 [ 47.970244][ T4432] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 47.971433][ T4432] x14: 0000000000000001 x13: 1ffff00003740e7c x12: 0000000000ff0100 [ 47.972629][ T4432] x11: 0000000000000000 x10: 0000000000000000 x9 : 397b77535838b600 [ 47.973855][ T4432] x8 : 397b77535838b600 x7 : 0000000000000001 x6 : 0000000000000001 [ 47.975118][ T4432] x5 : ffff80001ba073f8 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 47.976342][ T4432] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 47.977537][ T4432] Call trace: [ 47.978002][ T4432] btrfs_quota_enable+0xff8/0x1674 [ 47.978772][ T4432] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 47.979576][ T4432] btrfs_ioctl+0x96c/0xa8c [ 47.980213][ T4432] __arm64_sys_ioctl+0x14c/0x1c8 [ 47.980920][ T4432] invoke_syscall+0x98/0x2b0 [ 47.981590][ T4432] el0_svc_common+0x138/0x258 [ 47.982303][ T4432] do_el0_svc+0x58/0x13c [ 47.982959][ T4432] el0_svc+0x78/0x1d0 [ 47.983527][ T4432] el0t_64_sync_handler+0xcc/0xe4 [ 47.984290][ T4432] el0t_64_sync+0x1a0/0x1a4 [ 47.984958][ T4432] irq event stamp: 80700 [ 47.985571][ T4432] hardirqs last enabled at (80699): [] __up_console_sem+0xb4/0xfc [ 47.986986][ T4432] hardirqs last disabled at (80700): [] el1_dbg+0x24/0x80 [ 47.988216][ T4432] softirqs last enabled at (80674): [] handle_softirqs+0xa40/0xbe4 [ 47.989624][ T4432] softirqs last disabled at (80599): [] __irq_exit_rcu+0x240/0x43c [ 47.991020][ T4432] ---[ end trace 08f01cbbc25c5bde ]--- [ 47.992879][ T4432] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 47.994554][ T4432] BTRFS info (device loop0): forced readonly [ 48.213225][ T4501] loop0: detected capacity change from 0 to 32768 [ 48.217707][ T4501] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4501) [ 48.228320][ T4501] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 48.229789][ T4501] BTRFS info (device loop0): using free space tree [ 48.230780][ T4501] BTRFS info (device loop0): has skinny extents [ 48.279465][ T4501] BTRFS info (device loop0): enabling ssd optimizations [ 48.284161][ T4501] FAULT_INJECTION: forcing a failure. [ 48.284161][ T4501] name failslab, interval 1, probability 0, space 0, times 0 [ 48.286361][ T4501] CPU: 1 PID: 4501 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.287688][ T4501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 48.289187][ T4501] Call trace: [ 48.289652][ T4501] dump_backtrace+0x0/0x458 [ 48.290277][ T4501] show_stack+0x2c/0x3c [ 48.290929][ T4501] __dump_stack+0x30/0x40 [ 48.291540][ T4501] dump_stack_lvl+0xf4/0x15c [ 48.292253][ T4501] dump_stack+0x1c/0x5c [ 48.292952][ T4501] should_fail+0x3bc/0x514 [ 48.293674][ T4501] __should_failslab+0xbc/0x10c [ 48.294393][ T4501] should_failslab+0x10/0x28 [ 48.295130][ T4501] slab_pre_alloc_hook+0x64/0xe8 [ 48.295863][ T4501] kmem_cache_alloc_trace+0x98/0x3ec [ 48.296653][ T4501] btrfs_alloc_root+0x8c/0x97c [ 48.297407][ T4501] btrfs_create_tree+0x110/0x998 [ 48.298171][ T4501] btrfs_quota_enable+0x37c/0x1674 [ 48.298912][ T4501] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 48.299672][ T4501] btrfs_ioctl+0x96c/0xa8c [ 48.300296][ T4501] __arm64_sys_ioctl+0x14c/0x1c8 [ 48.301023][ T4501] invoke_syscall+0x98/0x2b0 [ 48.301697][ T4501] el0_svc_common+0x138/0x258 [ 48.302394][ T4501] do_el0_svc+0x58/0x13c [ 48.303043][ T4501] el0_svc+0x78/0x1d0 [ 48.303590][ T4501] el0t_64_sync_handler+0xcc/0xe4 [ 48.304282][ T4501] el0t_64_sync+0x1a0/0x1a4 [ 48.306898][ T4501] ------------[ cut here ]------------ [ 48.307892][ T4501] WARNING: CPU: 1 PID: 4501 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 48.309477][ T4501] Modules linked in: [ 48.310139][ T4501] CPU: 1 PID: 4501 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.311538][ T4501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 48.313041][ T4501] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.314270][ T4501] pc : btrfs_quota_enable+0xff8/0x1674 [ 48.315056][ T4501] lr : btrfs_quota_enable+0xff8/0x1674 [ 48.315910][ T4501] sp : ffff80001fb77ae0 [ 48.316489][ T4501] x29: ffff80001fb77c40 x28: 0000000000001798 x27: ffff700003f6ef6c [ 48.317699][ T4501] x26: ffff0000de5a90b0 x25: ffff0000c9208000 x24: fffffffffffffff4 [ 48.318851][ T4501] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000de5a9108 [ 48.320169][ T4501] x20: 1fffe0001bcb5221 x19: ffff0000d05bc000 x18: 0000000000000001 [ 48.321327][ T4501] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 48.322518][ T4501] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 48.323771][ T4501] x11: 0000000000000000 x10: 0000000000000000 x9 : 13641639cdc63100 [ 48.324939][ T4501] x8 : 13641639cdc63100 x7 : 0000000000000001 x6 : 0000000000000001 [ 48.326199][ T4501] x5 : ffff80001fb773f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 48.327397][ T4501] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 48.328660][ T4501] Call trace: [ 48.329145][ T4501] btrfs_quota_enable+0xff8/0x1674 [ 48.329940][ T4501] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 48.330699][ T4501] btrfs_ioctl+0x96c/0xa8c [ 48.331348][ T4501] __arm64_sys_ioctl+0x14c/0x1c8 [ 48.332056][ T4501] invoke_syscall+0x98/0x2b0 [ 48.332770][ T4501] el0_svc_common+0x138/0x258 [ 48.333509][ T4501] do_el0_svc+0x58/0x13c [ 48.334148][ T4501] el0_svc+0x78/0x1d0 [ 48.334775][ T4501] el0t_64_sync_handler+0xcc/0xe4 [ 48.335528][ T4501] el0t_64_sync+0x1a0/0x1a4 [ 48.336245][ T4501] irq event stamp: 79638 [ 48.336962][ T4501] hardirqs last enabled at (79637): [] __up_console_sem+0xb4/0xfc [ 48.338448][ T4501] hardirqs last disabled at (79638): [] el1_dbg+0x24/0x80 [ 48.339819][ T4501] softirqs last enabled at (79618): [] handle_softirqs+0xa40/0xbe4 [ 48.341249][ T4501] softirqs last disabled at (79557): [] __irq_exit_rcu+0x240/0x43c [ 48.342655][ T4501] ---[ end trace 08f01cbbc25c5bdf ]--- [ 48.346605][ T4501] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 48.348092][ T4501] BTRFS info (device loop0): forced readonly [ 48.535048][ T4567] loop0: detected capacity change from 0 to 32768 [ 48.542024][ T4567] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4567) [ 48.550201][ T4567] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 48.552562][ T4567] BTRFS info (device loop0): using free space tree [ 48.554011][ T4567] BTRFS info (device loop0): has skinny extents [ 48.581602][ T4492] Bluetooth: hci0: command 0x0409 tx timeout [ 48.613647][ T4567] BTRFS info (device loop0): enabling ssd optimizations [ 48.617251][ T4567] FAULT_INJECTION: forcing a failure. [ 48.617251][ T4567] name failslab, interval 1, probability 0, space 0, times 0 [ 48.619360][ T4567] CPU: 0 PID: 4567 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.620815][ T4567] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 48.622404][ T4567] Call trace: [ 48.622900][ T4567] dump_backtrace+0x0/0x458 [ 48.623590][ T4567] show_stack+0x2c/0x3c [ 48.624144][ T4567] __dump_stack+0x30/0x40 [ 48.624806][ T4567] dump_stack_lvl+0xf4/0x15c [ 48.625417][ T4567] dump_stack+0x1c/0x5c [ 48.625967][ T4567] should_fail+0x3bc/0x514 [ 48.626561][ T4567] __should_failslab+0xbc/0x10c [ 48.627208][ T4567] should_failslab+0x10/0x28 [ 48.627795][ T4567] slab_pre_alloc_hook+0x64/0xe8 [ 48.628481][ T4567] kmem_cache_alloc_trace+0x98/0x3ec [ 48.629237][ T4567] btrfs_alloc_root+0x8c/0x97c [ 48.629930][ T4567] btrfs_create_tree+0x110/0x998 [ 48.630695][ T4567] btrfs_quota_enable+0x37c/0x1674 [ 48.631481][ T4567] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 48.632314][ T4567] btrfs_ioctl+0x96c/0xa8c [ 48.633009][ T4567] __arm64_sys_ioctl+0x14c/0x1c8 [ 48.633761][ T4567] invoke_syscall+0x98/0x2b0 [ 48.634450][ T4567] el0_svc_common+0x138/0x258 [ 48.635145][ T4567] do_el0_svc+0x58/0x13c [ 48.635769][ T4567] el0_svc+0x78/0x1d0 [ 48.636392][ T4567] el0t_64_sync_handler+0xcc/0xe4 [ 48.637181][ T4567] el0t_64_sync+0x1a0/0x1a4 [ 48.644014][ T4567] ------------[ cut here ]------------ [ 48.645368][ T4567] WARNING: CPU: 0 PID: 4567 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 48.646836][ T4567] Modules linked in: [ 48.647497][ T4567] CPU: 0 PID: 4567 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.648886][ T4567] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 48.650392][ T4567] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.651590][ T4567] pc : btrfs_quota_enable+0xff8/0x1674 [ 48.652363][ T4567] lr : btrfs_quota_enable+0xff8/0x1674 [ 48.653167][ T4567] sp : ffff80001fa27ae0 [ 48.653785][ T4567] x29: ffff80001fa27c40 x28: 0000000000001798 x27: ffff700003f44f6c [ 48.655027][ T4567] x26: ffff0000dc9d3210 x25: ffff0000d8786000 x24: fffffffffffffff4 [ 48.656189][ T4567] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dc9d3268 [ 48.657358][ T4567] x20: 1fffe0001b93a64d x19: ffff0000d5ef0000 x18: 0000000000000001 [ 48.658557][ T4567] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 48.659758][ T4567] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 48.661024][ T4567] x11: 0000000000000000 x10: 0000000000000000 x9 : e59f792fd6c94200 [ 48.662279][ T4567] x8 : e59f792fd6c94200 x7 : 0000000000000001 x6 : 0000000000000001 [ 48.663575][ T4567] x5 : ffff80001fa273f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 48.664785][ T4567] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 48.665981][ T4567] Call trace: [ 48.666427][ T4567] btrfs_quota_enable+0xff8/0x1674 [ 48.667146][ T4567] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 48.667967][ T4567] btrfs_ioctl+0x96c/0xa8c [ 48.668648][ T4567] __arm64_sys_ioctl+0x14c/0x1c8 [ 48.669369][ T4567] invoke_syscall+0x98/0x2b0 [ 48.670074][ T4567] el0_svc_common+0x138/0x258 [ 48.670740][ T4567] do_el0_svc+0x58/0x13c [ 48.671382][ T4567] el0_svc+0x78/0x1d0 [ 48.671921][ T4567] el0t_64_sync_handler+0xcc/0xe4 [ 48.672621][ T4567] el0t_64_sync+0x1a0/0x1a4 [ 48.673257][ T4567] irq event stamp: 79488 [ 48.673862][ T4567] hardirqs last enabled at (79487): [] __up_console_sem+0xb4/0xfc [ 48.675116][ T4567] hardirqs last disabled at (79488): [] el1_dbg+0x24/0x80 [ 48.676395][ T4567] softirqs last enabled at (79464): [] handle_softirqs+0xa40/0xbe4 [ 48.677800][ T4567] softirqs last disabled at (79431): [] __irq_exit_rcu+0x240/0x43c [ 48.679115][ T4567] ---[ end trace 08f01cbbc25c5be0 ]--- [ 48.684898][ T4567] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 48.686576][ T4567] BTRFS info (device loop0): forced readonly [ 48.867010][ T4620] loop0: detected capacity change from 0 to 32768 [ 48.870383][ T4620] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4620) [ 48.873969][ T4620] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 48.875465][ T4620] BTRFS info (device loop0): using free space tree [ 48.876521][ T4620] BTRFS info (device loop0): has skinny extents [ 48.910488][ T4620] BTRFS info (device loop0): enabling ssd optimizations [ 48.914365][ T4620] FAULT_INJECTION: forcing a failure. [ 48.914365][ T4620] name failslab, interval 1, probability 0, space 0, times 0 [ 48.916354][ T4620] CPU: 0 PID: 4620 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.917601][ T4620] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 48.919160][ T4620] Call trace: [ 48.919635][ T4620] dump_backtrace+0x0/0x458 [ 48.920277][ T4620] show_stack+0x2c/0x3c [ 48.920896][ T4620] __dump_stack+0x30/0x40 [ 48.921560][ T4620] dump_stack_lvl+0xf4/0x15c [ 48.922305][ T4620] dump_stack+0x1c/0x5c [ 48.922980][ T4620] should_fail+0x3bc/0x514 [ 48.923724][ T4620] __should_failslab+0xbc/0x10c [ 48.924544][ T4620] should_failslab+0x10/0x28 [ 48.925296][ T4620] slab_pre_alloc_hook+0x64/0xe8 [ 48.926054][ T4620] kmem_cache_alloc+0x94/0x3d4 [ 48.926794][ T4620] start_transaction+0x4d0/0x13ec [ 48.927543][ T4620] btrfs_start_transaction+0x34/0x44 [ 48.928407][ T4620] btrfs_quota_enable+0x1d0/0x1674 [ 48.929201][ T4620] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 48.929949][ T4620] btrfs_ioctl+0x96c/0xa8c [ 48.930639][ T4620] __arm64_sys_ioctl+0x14c/0x1c8 [ 48.931390][ T4620] invoke_syscall+0x98/0x2b0 [ 48.932064][ T4620] el0_svc_common+0x138/0x258 [ 48.932745][ T4620] do_el0_svc+0x58/0x13c [ 48.933360][ T4620] el0_svc+0x78/0x1d0 [ 48.933926][ T4620] el0t_64_sync_handler+0xcc/0xe4 [ 48.934786][ T4620] el0t_64_sync+0x1a0/0x1a4 [ 49.146017][ T4670] loop0: detected capacity change from 0 to 32768 [ 49.153494][ T4670] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4670) [ 49.156761][ T4670] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 49.158322][ T4670] BTRFS info (device loop0): using free space tree [ 49.159449][ T4670] BTRFS info (device loop0): has skinny extents [ 49.218512][ T4670] BTRFS info (device loop0): enabling ssd optimizations [ 49.224034][ T4670] FAULT_INJECTION: forcing a failure. [ 49.224034][ T4670] name failslab, interval 1, probability 0, space 0, times 0 [ 49.225982][ T4670] CPU: 0 PID: 4670 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.227404][ T4670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 49.228898][ T4670] Call trace: [ 49.229355][ T4670] dump_backtrace+0x0/0x458 [ 49.230025][ T4670] show_stack+0x2c/0x3c [ 49.230588][ T4670] __dump_stack+0x30/0x40 [ 49.231226][ T4670] dump_stack_lvl+0xf4/0x15c [ 49.231919][ T4670] dump_stack+0x1c/0x5c [ 49.232511][ T4670] should_fail+0x3bc/0x514 [ 49.233200][ T4670] __should_failslab+0xbc/0x10c [ 49.233947][ T4670] should_failslab+0x10/0x28 [ 49.234655][ T4670] slab_pre_alloc_hook+0x64/0xe8 [ 49.235425][ T4670] kmem_cache_alloc_trace+0x98/0x3ec [ 49.236272][ T4670] btrfs_alloc_root+0x8c/0x97c [ 49.236999][ T4670] btrfs_create_tree+0x110/0x998 [ 49.237770][ T4670] btrfs_quota_enable+0x37c/0x1674 [ 49.238609][ T4670] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 49.239422][ T4670] btrfs_ioctl+0x96c/0xa8c [ 49.240071][ T4670] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.240846][ T4670] invoke_syscall+0x98/0x2b0 [ 49.241574][ T4670] el0_svc_common+0x138/0x258 [ 49.242277][ T4670] do_el0_svc+0x58/0x13c [ 49.242924][ T4670] el0_svc+0x78/0x1d0 [ 49.243613][ T4670] el0t_64_sync_handler+0xcc/0xe4 [ 49.244444][ T4670] el0t_64_sync+0x1a0/0x1a4 [ 49.247480][ T4670] ------------[ cut here ]------------ [ 49.248397][ T4670] WARNING: CPU: 0 PID: 4670 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 49.249834][ T4670] Modules linked in: [ 49.250451][ T4670] CPU: 0 PID: 4670 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.251792][ T4670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 49.253377][ T4670] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.254493][ T4670] pc : btrfs_quota_enable+0xff8/0x1674 [ 49.255346][ T4670] lr : btrfs_quota_enable+0xff8/0x1674 [ 49.256131][ T4670] sp : ffff8000200d7ae0 [ 49.256764][ T4670] x29: ffff8000200d7c40 x28: 0000000000001798 x27: ffff70000401af6c [ 49.257988][ T4670] x26: ffff0000dc9d3580 x25: ffff0000d09f6000 x24: fffffffffffffff4 [ 49.259216][ T4670] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dc9d35d8 [ 49.260436][ T4670] x20: 1fffe0001b93a6bb x19: ffff0000d8210000 x18: 0000000000000001 [ 49.261705][ T4670] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 49.262951][ T4670] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 49.264179][ T4670] x11: 0000000000000000 x10: 0000000000000000 x9 : 2c22766da5a32a00 [ 49.265492][ T4670] x8 : 2c22766da5a32a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 49.266805][ T4670] x5 : ffff8000200d73f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 49.268058][ T4670] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 49.269287][ T4670] Call trace: [ 49.269804][ T4670] btrfs_quota_enable+0xff8/0x1674 [ 49.270575][ T4670] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 49.271393][ T4670] btrfs_ioctl+0x96c/0xa8c [ 49.272078][ T4670] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.272803][ T4670] invoke_syscall+0x98/0x2b0 [ 49.273534][ T4670] el0_svc_common+0x138/0x258 [ 49.274252][ T4670] do_el0_svc+0x58/0x13c [ 49.274897][ T4670] el0_svc+0x78/0x1d0 [ 49.275476][ T4670] el0t_64_sync_handler+0xcc/0xe4 [ 49.276181][ T4670] el0t_64_sync+0x1a0/0x1a4 [ 49.276808][ T4670] irq event stamp: 80556 [ 49.277399][ T4670] hardirqs last enabled at (80555): [] __up_console_sem+0xb4/0xfc [ 49.278763][ T4670] hardirqs last disabled at (80556): [] el1_dbg+0x24/0x80 [ 49.280031][ T4670] softirqs last enabled at (80536): [] handle_softirqs+0xa40/0xbe4 [ 49.281461][ T4670] softirqs last disabled at (80445): [] __irq_exit_rcu+0x240/0x43c [ 49.282935][ T4670] ---[ end trace 08f01cbbc25c5be1 ]--- [ 49.285897][ T4670] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 49.287383][ T4670] BTRFS info (device loop0): forced readonly [ 49.474880][ T4726] loop0: detected capacity change from 0 to 32768 [ 49.477338][ T4726] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4726) [ 49.480464][ T4726] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 49.482504][ T4726] BTRFS info (device loop0): using free space tree [ 49.483615][ T4726] BTRFS info (device loop0): has skinny extents [ 49.499575][ T4726] BTRFS info (device loop0): enabling ssd optimizations [ 49.503632][ T4726] FAULT_INJECTION: forcing a failure. [ 49.503632][ T4726] name failslab, interval 1, probability 0, space 0, times 0 [ 49.505633][ T4726] CPU: 0 PID: 4726 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.506963][ T4726] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 49.508395][ T4726] Call trace: [ 49.508881][ T4726] dump_backtrace+0x0/0x458 [ 49.509596][ T4726] show_stack+0x2c/0x3c [ 49.510276][ T4726] __dump_stack+0x30/0x40 [ 49.510912][ T4726] dump_stack_lvl+0xf4/0x15c [ 49.511667][ T4726] dump_stack+0x1c/0x5c [ 49.512321][ T4726] should_fail+0x3bc/0x514 [ 49.512980][ T4726] __should_failslab+0xbc/0x10c [ 49.513715][ T4726] should_failslab+0x10/0x28 [ 49.514408][ T4726] slab_pre_alloc_hook+0x64/0xe8 [ 49.515168][ T4726] kmem_cache_alloc+0x94/0x3d4 [ 49.515938][ T4726] __kernfs_new_node+0xec/0x5f4 [ 49.516676][ T4726] kernfs_new_node+0x11c/0x238 [ 49.517462][ T4726] kernfs_create_dir_ns+0x58/0x12c [ 49.518273][ T4726] sysfs_create_dir_ns+0x120/0x264 [ 49.519048][ T4726] kobject_add_internal+0x5ac/0xc3c [ 49.519777][ T4726] kobject_add+0x140/0x20c [ 49.520426][ T4726] kobject_create_and_add+0x140/0x214 [ 49.521210][ T4726] btrfs_sysfs_add_qgroups+0xf0/0x290 [ 49.522009][ T4726] btrfs_quota_enable+0x1a4/0x1674 [ 49.522781][ T4726] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 49.523579][ T4726] btrfs_ioctl+0x96c/0xa8c [ 49.524242][ T4726] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.524959][ T4726] invoke_syscall+0x98/0x2b0 [ 49.525665][ T4726] el0_svc_common+0x138/0x258 [ 49.526337][ T4726] do_el0_svc+0x58/0x13c [ 49.526984][ T4726] el0_svc+0x78/0x1d0 [ 49.527545][ T4726] el0t_64_sync_handler+0xcc/0xe4 [ 49.528254][ T4726] el0t_64_sync+0x1a0/0x1a4 [ 49.531067][ T4726] kobject_add_internal failed for qgroups (error: -12 parent: a6a605fc-d5f1-4e66-8595-3726e2b761d6) [ 49.532642][ T4726] kobject_create_and_add: kobject_add error: -12 [ 49.734281][ T4754] loop0: detected capacity change from 0 to 32768 [ 49.736588][ T4754] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4754) [ 49.740432][ T4754] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 49.742615][ T4754] BTRFS info (device loop0): using free space tree [ 49.743613][ T4754] BTRFS info (device loop0): has skinny extents [ 49.761033][ T4754] BTRFS info (device loop0): enabling ssd optimizations [ 49.764700][ T4754] FAULT_INJECTION: forcing a failure. [ 49.764700][ T4754] name failslab, interval 1, probability 0, space 0, times 0 [ 49.766661][ T4754] CPU: 1 PID: 4754 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.768091][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 49.769590][ T4754] Call trace: [ 49.770073][ T4754] dump_backtrace+0x0/0x458 [ 49.770753][ T4754] show_stack+0x2c/0x3c [ 49.771415][ T4754] __dump_stack+0x30/0x40 [ 49.772114][ T4754] dump_stack_lvl+0xf4/0x15c [ 49.772863][ T4754] dump_stack+0x1c/0x5c [ 49.773617][ T4754] should_fail+0x3bc/0x514 [ 49.774326][ T4754] __should_failslab+0xbc/0x10c [ 49.775093][ T4754] should_failslab+0x10/0x28 [ 49.775859][ T4754] slab_pre_alloc_hook+0x64/0xe8 [ 49.776582][ T4754] kmem_cache_alloc_trace+0x98/0x3ec [ 49.777393][ T4754] btrfs_alloc_root+0x8c/0x97c [ 49.778078][ T4754] btrfs_create_tree+0x110/0x998 [ 49.778744][ T4754] btrfs_quota_enable+0x37c/0x1674 [ 49.779494][ T4754] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 49.780235][ T4754] btrfs_ioctl+0x96c/0xa8c [ 49.780845][ T4754] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.781587][ T4754] invoke_syscall+0x98/0x2b0 [ 49.782269][ T4754] el0_svc_common+0x138/0x258 [ 49.782925][ T4754] do_el0_svc+0x58/0x13c [ 49.783570][ T4754] el0_svc+0x78/0x1d0 [ 49.784135][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 49.784821][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 49.787570][ T4754] ------------[ cut here ]------------ [ 49.788505][ T4754] WARNING: CPU: 1 PID: 4754 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 49.790103][ T4754] Modules linked in: [ 49.790707][ T4754] CPU: 1 PID: 4754 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.792265][ T4754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 49.793939][ T4754] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.795115][ T4754] pc : btrfs_quota_enable+0xff8/0x1674 [ 49.796027][ T4754] lr : btrfs_quota_enable+0xff8/0x1674 [ 49.796840][ T4754] sp : ffff80001fc17ae0 [ 49.797447][ T4754] x29: ffff80001fc17c40 x28: 0000000000001798 x27: ffff700003f82f6c [ 49.798718][ T4754] x26: ffff0000de5a92c0 x25: ffff0000dc55e000 x24: fffffffffffffff4 [ 49.800046][ T4754] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000de5a9318 [ 49.801261][ T4754] x20: 1fffe0001bcb5263 x19: ffff0000c9500000 x18: 0000000000000001 [ 49.802420][ T4754] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 49.803637][ T4754] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 49.804834][ T4754] x11: 0000000000000000 x10: 0000000000000000 x9 : d2a5635c8fc58f00 [ 49.806103][ T4754] x8 : d2a5635c8fc58f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 49.807292][ T4754] x5 : ffff80001fc173f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 49.808472][ T4754] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 49.809677][ T4754] Call trace: [ 49.810183][ T4754] btrfs_quota_enable+0xff8/0x1674 [ 49.810892][ T4754] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 49.811680][ T4754] btrfs_ioctl+0x96c/0xa8c [ 49.812316][ T4754] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.813067][ T4754] invoke_syscall+0x98/0x2b0 [ 49.813724][ T4754] el0_svc_common+0x138/0x258 [ 49.814375][ T4754] do_el0_svc+0x58/0x13c [ 49.815036][ T4754] el0_svc+0x78/0x1d0 [ 49.815615][ T4754] el0t_64_sync_handler+0xcc/0xe4 [ 49.816420][ T4754] el0t_64_sync+0x1a0/0x1a4 [ 49.817109][ T4754] irq event stamp: 78718 [ 49.817720][ T4754] hardirqs last enabled at (78717): [] __up_console_sem+0xb4/0xfc [ 49.819115][ T4754] hardirqs last disabled at (78718): [] el1_dbg+0x24/0x80 [ 49.820363][ T4754] softirqs last enabled at (78698): [] handle_softirqs+0xa40/0xbe4 [ 49.821722][ T4754] softirqs last disabled at (78623): [] __irq_exit_rcu+0x240/0x43c [ 49.823102][ T4754] ---[ end trace 08f01cbbc25c5be2 ]--- [ 49.824760][ T4754] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 49.826184][ T4754] BTRFS info (device loop0): forced readonly [ 49.998168][ T4775] loop0: detected capacity change from 0 to 32768 [ 50.001307][ T4775] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4775) [ 50.005673][ T4775] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 50.007176][ T4775] BTRFS info (device loop0): using free space tree [ 50.008123][ T4775] BTRFS info (device loop0): has skinny extents [ 50.019785][ T4775] BTRFS info (device loop0): enabling ssd optimizations [ 50.023861][ T4775] FAULT_INJECTION: forcing a failure. [ 50.023861][ T4775] name failslab, interval 1, probability 0, space 0, times 0 [ 50.025931][ T4775] CPU: 1 PID: 4775 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.027317][ T4775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 50.028881][ T4775] Call trace: [ 50.029406][ T4775] dump_backtrace+0x0/0x458 [ 50.030157][ T4775] show_stack+0x2c/0x3c [ 50.030769][ T4775] __dump_stack+0x30/0x40 [ 50.031458][ T4775] dump_stack_lvl+0xf4/0x15c [ 50.032160][ T4775] dump_stack+0x1c/0x5c [ 50.032829][ T4775] should_fail+0x3bc/0x514 [ 50.033524][ T4775] __should_failslab+0xbc/0x10c [ 50.034289][ T4775] should_failslab+0x10/0x28 [ 50.034969][ T4775] slab_pre_alloc_hook+0x64/0xe8 [ 50.035691][ T4775] kmem_cache_alloc+0x94/0x3d4 [ 50.036425][ T4775] start_transaction+0x4d0/0x13ec [ 50.037149][ T4775] btrfs_start_transaction+0x34/0x44 [ 50.037935][ T4775] btrfs_quota_enable+0x1d0/0x1674 [ 50.038715][ T4775] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 50.039529][ T4775] btrfs_ioctl+0x96c/0xa8c [ 50.040164][ T4775] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.040896][ T4775] invoke_syscall+0x98/0x2b0 [ 50.041603][ T4775] el0_svc_common+0x138/0x258 [ 50.042285][ T4775] do_el0_svc+0x58/0x13c [ 50.042891][ T4775] el0_svc+0x78/0x1d0 [ 50.043554][ T4775] el0t_64_sync_handler+0xcc/0xe4 [ 50.044318][ T4775] el0t_64_sync+0x1a0/0x1a4 [ 50.249729][ T4796] loop0: detected capacity change from 0 to 32768 [ 50.252450][ T4796] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4796) [ 50.256382][ T4796] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 50.258028][ T4796] BTRFS info (device loop0): using free space tree [ 50.258995][ T4796] BTRFS info (device loop0): has skinny extents [ 50.267202][ T4796] BTRFS info (device loop0): enabling ssd optimizations [ 50.270502][ T4796] FAULT_INJECTION: forcing a failure. [ 50.270502][ T4796] name failslab, interval 1, probability 0, space 0, times 0 [ 50.272953][ T4796] CPU: 1 PID: 4796 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.274328][ T4796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 50.275804][ T4796] Call trace: [ 50.276283][ T4796] dump_backtrace+0x0/0x458 [ 50.276936][ T4796] show_stack+0x2c/0x3c [ 50.277531][ T4796] __dump_stack+0x30/0x40 [ 50.278165][ T4796] dump_stack_lvl+0xf4/0x15c [ 50.278828][ T4796] dump_stack+0x1c/0x5c [ 50.279484][ T4796] should_fail+0x3bc/0x514 [ 50.280072][ T4796] __should_failslab+0xbc/0x10c [ 50.280800][ T4796] should_failslab+0x10/0x28 [ 50.281440][ T4796] slab_pre_alloc_hook+0x64/0xe8 [ 50.282137][ T4796] kmem_cache_alloc_trace+0x98/0x3ec [ 50.282894][ T4796] btrfs_alloc_root+0x8c/0x97c [ 50.283635][ T4796] btrfs_create_tree+0x110/0x998 [ 50.284379][ T4796] btrfs_quota_enable+0x37c/0x1674 [ 50.285157][ T4796] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 50.285995][ T4796] btrfs_ioctl+0x96c/0xa8c [ 50.286644][ T4796] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.287450][ T4796] invoke_syscall+0x98/0x2b0 [ 50.288131][ T4796] el0_svc_common+0x138/0x258 [ 50.288876][ T4796] do_el0_svc+0x58/0x13c [ 50.289529][ T4796] el0_svc+0x78/0x1d0 [ 50.290203][ T4796] el0t_64_sync_handler+0xcc/0xe4 [ 50.290978][ T4796] el0t_64_sync+0x1a0/0x1a4 [ 50.293513][ T4796] ------------[ cut here ]------------ [ 50.294471][ T4796] WARNING: CPU: 1 PID: 4796 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 50.296044][ T4796] Modules linked in: [ 50.296636][ T4796] CPU: 1 PID: 4796 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.298054][ T4796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 50.299702][ T4796] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.300905][ T4796] pc : btrfs_quota_enable+0xff8/0x1674 [ 50.301680][ T4796] lr : btrfs_quota_enable+0xff8/0x1674 [ 50.302486][ T4796] sp : ffff800020087ae0 [ 50.303072][ T4796] x29: ffff800020087c40 x28: 0000000000001798 x27: ffff700004010f6c [ 50.304344][ T4796] x26: ffff0000de5a94d0 x25: ffff0000db7fc000 x24: fffffffffffffff4 [ 50.305583][ T4796] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000de5a9528 [ 50.306781][ T4796] x20: 1fffe0001bcb52a5 x19: ffff0000c9500000 x18: 0000000000000001 [ 50.308080][ T4796] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 50.309335][ T4796] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 50.310505][ T4796] x11: 0000000000000000 x10: 0000000000000000 x9 : 87ca2885ecf75600 [ 50.311633][ T4796] x8 : 87ca2885ecf75600 x7 : 0000000000000001 x6 : 0000000000000001 [ 50.312867][ T4796] x5 : ffff8000200873f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 50.314061][ T4796] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 50.315331][ T4796] Call trace: [ 50.315800][ T4796] btrfs_quota_enable+0xff8/0x1674 [ 50.316545][ T4796] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 50.317319][ T4796] btrfs_ioctl+0x96c/0xa8c [ 50.317932][ T4796] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.318718][ T4796] invoke_syscall+0x98/0x2b0 [ 50.319464][ T4796] el0_svc_common+0x138/0x258 [ 50.320144][ T4796] do_el0_svc+0x58/0x13c [ 50.320771][ T4796] el0_svc+0x78/0x1d0 [ 50.321330][ T4796] el0t_64_sync_handler+0xcc/0xe4 [ 50.322024][ T4796] el0t_64_sync+0x1a0/0x1a4 [ 50.322727][ T4796] irq event stamp: 78780 [ 50.323306][ T4796] hardirqs last enabled at (78779): [] __up_console_sem+0xb4/0xfc [ 50.324664][ T4796] hardirqs last disabled at (78780): [] el1_dbg+0x24/0x80 [ 50.326020][ T4796] softirqs last enabled at (78760): [] handle_softirqs+0xa40/0xbe4 [ 50.327404][ T4796] softirqs last disabled at (78709): [] __irq_exit_rcu+0x240/0x43c [ 50.328736][ T4796] ---[ end trace 08f01cbbc25c5be3 ]--- [ 50.330911][ T4796] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 50.332789][ T4796] BTRFS info (device loop0): forced readonly [ 50.509791][ T4817] loop0: detected capacity change from 0 to 32768 [ 50.512831][ T4817] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4817) [ 50.515897][ T4817] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 50.517471][ T4817] BTRFS info (device loop0): using free space tree [ 50.518586][ T4817] BTRFS info (device loop0): has skinny extents [ 50.530573][ T4817] BTRFS info (device loop0): enabling ssd optimizations [ 50.534807][ T4817] FAULT_INJECTION: forcing a failure. [ 50.534807][ T4817] name failslab, interval 1, probability 0, space 0, times 0 [ 50.536932][ T4817] CPU: 0 PID: 4817 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.538341][ T4817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 50.540026][ T4817] Call trace: [ 50.540603][ T4817] dump_backtrace+0x0/0x458 [ 50.541336][ T4817] show_stack+0x2c/0x3c [ 50.542017][ T4817] __dump_stack+0x30/0x40 [ 50.542710][ T4817] dump_stack_lvl+0xf4/0x15c [ 50.543359][ T4817] dump_stack+0x1c/0x5c [ 50.543969][ T4817] should_fail+0x3bc/0x514 [ 50.544652][ T4817] __should_failslab+0xbc/0x10c [ 50.545400][ T4817] should_failslab+0x10/0x28 [ 50.546068][ T4817] slab_pre_alloc_hook+0x64/0xe8 [ 50.546787][ T4817] kmem_cache_alloc_trace+0x98/0x3ec [ 50.547528][ T4817] btrfs_alloc_root+0x8c/0x97c [ 50.548204][ T4817] btrfs_create_tree+0x110/0x998 [ 50.548940][ T4817] btrfs_quota_enable+0x37c/0x1674 [ 50.549712][ T4817] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 50.550469][ T4817] btrfs_ioctl+0x96c/0xa8c [ 50.551068][ T4817] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.551825][ T4817] invoke_syscall+0x98/0x2b0 [ 50.552536][ T4817] el0_svc_common+0x138/0x258 [ 50.553242][ T4817] do_el0_svc+0x58/0x13c [ 50.553863][ T4817] el0_svc+0x78/0x1d0 [ 50.554423][ T4817] el0t_64_sync_handler+0xcc/0xe4 [ 50.555175][ T4817] el0t_64_sync+0x1a0/0x1a4 [ 50.557237][ T4817] ------------[ cut here ]------------ [ 50.558208][ T4817] WARNING: CPU: 0 PID: 4817 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 50.559688][ T4817] Modules linked in: [ 50.560314][ T4817] CPU: 0 PID: 4817 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.561756][ T4817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 50.563291][ T4817] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.564474][ T4817] pc : btrfs_quota_enable+0xff8/0x1674 [ 50.565239][ T4817] lr : btrfs_quota_enable+0xff8/0x1674 [ 50.565986][ T4817] sp : ffff80001cfb7ae0 [ 50.566546][ T4817] x29: ffff80001cfb7c40 x28: 0000000000001798 x27: ffff7000039f6f6c [ 50.567950][ T4817] x26: ffff0000dc9d39a0 x25: ffff0000d73d8000 x24: fffffffffffffff4 [ 50.569259][ T4817] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dc9d39f8 [ 50.570541][ T4817] x20: 1fffe0001b93a73f x19: ffff0000d62f4000 x18: 0000000000000001 [ 50.571845][ T4817] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 50.573069][ T4817] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 50.574240][ T4817] x11: 0000000000000000 x10: 0000000000000000 x9 : 48a86a3218de6c00 [ 50.575458][ T4817] x8 : 48a86a3218de6c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 50.576714][ T4817] x5 : ffff80001cfb73f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 50.577958][ T4817] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 50.579174][ T4817] Call trace: [ 50.579679][ T4817] btrfs_quota_enable+0xff8/0x1674 [ 50.580479][ T4817] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 50.581310][ T4817] btrfs_ioctl+0x96c/0xa8c [ 50.581935][ T4817] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.582681][ T4817] invoke_syscall+0x98/0x2b0 [ 50.583376][ T4817] el0_svc_common+0x138/0x258 [ 50.584036][ T4817] do_el0_svc+0x58/0x13c [ 50.584653][ T4817] el0_svc+0x78/0x1d0 [ 50.585291][ T4817] el0t_64_sync_handler+0xcc/0xe4 [ 50.586031][ T4817] el0t_64_sync+0x1a0/0x1a4 [ 50.586717][ T4817] irq event stamp: 78790 [ 50.587358][ T4817] hardirqs last enabled at (78789): [] __up_console_sem+0xb4/0xfc [ 50.588836][ T4817] hardirqs last disabled at (78790): [] el1_dbg+0x24/0x80 [ 50.590204][ T4817] softirqs last enabled at (78770): [] handle_softirqs+0xa40/0xbe4 [ 50.591493][ T4817] softirqs last disabled at (78681): [] __irq_exit_rcu+0x240/0x43c [ 50.592890][ T4817] ---[ end trace 08f01cbbc25c5be4 ]--- [ 50.594541][ T4817] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 50.596063][ T4817] BTRFS info (device loop0): forced readonly [ 50.661291][ T4752] Bluetooth: hci0: command 0x041b tx timeout [ 50.799991][ T4838] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4838) [ 50.811877][ T4838] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 50.813414][ T4838] BTRFS info (device loop0): using free space tree [ 50.814338][ T4838] BTRFS info (device loop0): has skinny extents [ 50.835153][ T4838] BTRFS info (device loop0): enabling ssd optimizations [ 50.839364][ T4838] FAULT_INJECTION: forcing a failure. [ 50.839364][ T4838] name failslab, interval 1, probability 0, space 0, times 0 [ 50.842313][ T4838] CPU: 1 PID: 4838 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.843721][ T4838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 50.845301][ T4838] Call trace: [ 50.845851][ T4838] dump_backtrace+0x0/0x458 [ 50.846592][ T4838] show_stack+0x2c/0x3c [ 50.847245][ T4838] __dump_stack+0x30/0x40 [ 50.847985][ T4838] dump_stack_lvl+0xf4/0x15c [ 50.848726][ T4838] dump_stack+0x1c/0x5c [ 50.849406][ T4838] should_fail+0x3bc/0x514 [ 50.850020][ T4838] __should_failslab+0xbc/0x10c [ 50.850763][ T4838] should_failslab+0x10/0x28 [ 50.851464][ T4838] slab_pre_alloc_hook+0x64/0xe8 [ 50.852234][ T4838] kmem_cache_alloc_trace+0x98/0x3ec [ 50.853049][ T4838] btrfs_alloc_root+0x8c/0x97c [ 50.853706][ T4838] btrfs_create_tree+0x110/0x998 [ 50.854416][ T4838] btrfs_quota_enable+0x37c/0x1674 [ 50.855139][ T4838] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 50.855880][ T4838] btrfs_ioctl+0x96c/0xa8c [ 50.856592][ T4838] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.857343][ T4838] invoke_syscall+0x98/0x2b0 [ 50.858022][ T4838] el0_svc_common+0x138/0x258 [ 50.858735][ T4838] do_el0_svc+0x58/0x13c [ 50.859375][ T4838] el0_svc+0x78/0x1d0 [ 50.859992][ T4838] el0t_64_sync_handler+0xcc/0xe4 [ 50.860723][ T4838] el0t_64_sync+0x1a0/0x1a4 [ 50.862167][ T4838] ------------[ cut here ]------------ [ 50.863261][ T4838] WARNING: CPU: 1 PID: 4838 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 50.864746][ T4838] Modules linked in: [ 50.865291][ T4838] CPU: 1 PID: 4838 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.866751][ T4838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 50.868301][ T4838] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.869577][ T4838] pc : btrfs_quota_enable+0xff8/0x1674 [ 50.870408][ T4838] lr : btrfs_quota_enable+0xff8/0x1674 [ 50.871225][ T4838] sp : ffff8000202d7ae0 [ 50.871862][ T4838] x29: ffff8000202d7c40 x28: 0000000000001798 x27: ffff70000405af6c [ 50.873042][ T4838] x26: ffff0000de5a9630 x25: ffff0000dac36000 x24: fffffffffffffff4 [ 50.874270][ T4838] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000de5a9688 [ 50.875430][ T4838] x20: 1fffe0001bcb52d1 x19: ffff0000dbf4c000 x18: 0000000000000001 [ 50.876686][ T4838] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 50.877775][ T4838] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 50.878921][ T4838] x11: 0000000000000000 x10: 0000000000000000 x9 : c37bf14b7f767000 [ 50.880162][ T4838] x8 : c37bf14b7f767000 x7 : 0000000000000001 x6 : 0000000000000001 [ 50.881404][ T4838] x5 : ffff8000202d73f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 50.882659][ T4838] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 50.883904][ T4838] Call trace: [ 50.884422][ T4838] btrfs_quota_enable+0xff8/0x1674 [ 50.885248][ T4838] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 50.886053][ T4838] btrfs_ioctl+0x96c/0xa8c [ 50.886667][ T4838] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.887368][ T4838] invoke_syscall+0x98/0x2b0 [ 50.888050][ T4838] el0_svc_common+0x138/0x258 [ 50.888795][ T4838] do_el0_svc+0x58/0x13c [ 50.889445][ T4838] el0_svc+0x78/0x1d0 [ 50.890047][ T4838] el0t_64_sync_handler+0xcc/0xe4 [ 50.890767][ T4838] el0t_64_sync+0x1a0/0x1a4 [ 50.891435][ T4838] irq event stamp: 79478 [ 50.892092][ T4838] hardirqs last enabled at (79477): [] __up_console_sem+0xb4/0xfc [ 50.893398][ T4838] hardirqs last disabled at (79478): [] el1_dbg+0x24/0x80 [ 50.894656][ T4838] softirqs last enabled at (79458): [] handle_softirqs+0xa40/0xbe4 [ 50.896141][ T4838] softirqs last disabled at (79399): [] __irq_exit_rcu+0x240/0x43c [ 50.897565][ T4838] ---[ end trace 08f01cbbc25c5be5 ]--- [ 50.899084][ T4838] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 50.900529][ T4838] BTRFS info (device loop0): forced readonly [ 51.073458][ T4859] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4859) [ 51.077722][ T4859] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 51.079241][ T4859] BTRFS info (device loop0): using free space tree [ 51.080184][ T4859] BTRFS info (device loop0): has skinny extents [ 51.088154][ T4859] BTRFS info (device loop0): enabling ssd optimizations [ 51.092529][ T4859] FAULT_INJECTION: forcing a failure. [ 51.092529][ T4859] name failslab, interval 1, probability 0, space 0, times 0 [ 51.094750][ T4859] CPU: 1 PID: 4859 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.096143][ T4859] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 51.097742][ T4859] Call trace: [ 51.098281][ T4859] dump_backtrace+0x0/0x458 [ 51.098984][ T4859] show_stack+0x2c/0x3c [ 51.099609][ T4859] __dump_stack+0x30/0x40 [ 51.100262][ T4859] dump_stack_lvl+0xf4/0x15c [ 51.100995][ T4859] dump_stack+0x1c/0x5c [ 51.101622][ T4859] should_fail+0x3bc/0x514 [ 51.102358][ T4859] __should_failslab+0xbc/0x10c [ 51.103132][ T4859] should_failslab+0x10/0x28 [ 51.103821][ T4859] slab_pre_alloc_hook+0x64/0xe8 [ 51.104561][ T4859] kmem_cache_alloc+0x94/0x3d4 [ 51.105228][ T4859] __kernfs_new_node+0xec/0x5f4 [ 51.105923][ T4859] kernfs_new_node+0x11c/0x238 [ 51.106639][ T4859] kernfs_create_dir_ns+0x58/0x12c [ 51.107402][ T4859] sysfs_create_dir_ns+0x120/0x264 [ 51.108161][ T4859] kobject_add_internal+0x5ac/0xc3c [ 51.108980][ T4859] kobject_add+0x140/0x20c [ 51.109637][ T4859] kobject_create_and_add+0x140/0x214 [ 51.110374][ T4859] btrfs_sysfs_add_qgroups+0xf0/0x290 [ 51.111122][ T4859] btrfs_quota_enable+0x1a4/0x1674 [ 51.111856][ T4859] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 51.112655][ T4859] btrfs_ioctl+0x96c/0xa8c [ 51.113384][ T4859] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.114143][ T4859] invoke_syscall+0x98/0x2b0 [ 51.114864][ T4859] el0_svc_common+0x138/0x258 [ 51.115564][ T4859] do_el0_svc+0x58/0x13c [ 51.116187][ T4859] el0_svc+0x78/0x1d0 [ 51.116757][ T4859] el0t_64_sync_handler+0xcc/0xe4 [ 51.117475][ T4859] el0t_64_sync+0x1a0/0x1a4 [ 51.118354][ T4859] kobject_add_internal failed for qgroups (error: -12 parent: a6a605fc-d5f1-4e66-8595-3726e2b761d6) [ 51.120201][ T4859] kobject_create_and_add: kobject_add error: -12 [ 51.308826][ T4880] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4880) [ 51.312268][ T4880] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 51.313784][ T4880] BTRFS info (device loop0): using free space tree [ 51.314767][ T4880] BTRFS info (device loop0): has skinny extents [ 51.328171][ T4880] BTRFS info (device loop0): enabling ssd optimizations [ 51.331440][ T4880] FAULT_INJECTION: forcing a failure. [ 51.331440][ T4880] name failslab, interval 1, probability 0, space 0, times 0 [ 51.333482][ T4880] CPU: 1 PID: 4880 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.334763][ T4880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 51.336306][ T4880] Call trace: [ 51.336832][ T4880] dump_backtrace+0x0/0x458 [ 51.337482][ T4880] show_stack+0x2c/0x3c [ 51.338097][ T4880] __dump_stack+0x30/0x40 [ 51.338718][ T4880] dump_stack_lvl+0xf4/0x15c [ 51.339418][ T4880] dump_stack+0x1c/0x5c [ 51.340068][ T4880] should_fail+0x3bc/0x514 [ 51.340716][ T4880] __should_failslab+0xbc/0x10c [ 51.341467][ T4880] should_failslab+0x10/0x28 [ 51.342152][ T4880] slab_pre_alloc_hook+0x64/0xe8 [ 51.342902][ T4880] kmem_cache_alloc_trace+0x98/0x3ec [ 51.343703][ T4880] btrfs_alloc_root+0x8c/0x97c [ 51.344457][ T4880] btrfs_create_tree+0x110/0x998 [ 51.345174][ T4880] btrfs_quota_enable+0x37c/0x1674 [ 51.345955][ T4880] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 51.346734][ T4880] btrfs_ioctl+0x96c/0xa8c [ 51.347343][ T4880] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.348083][ T4880] invoke_syscall+0x98/0x2b0 [ 51.348855][ T4880] el0_svc_common+0x138/0x258 [ 51.349627][ T4880] do_el0_svc+0x58/0x13c [ 51.350294][ T4880] el0_svc+0x78/0x1d0 [ 51.350891][ T4880] el0t_64_sync_handler+0xcc/0xe4 [ 51.351667][ T4880] el0t_64_sync+0x1a0/0x1a4 [ 51.353130][ T4880] ------------[ cut here ]------------ [ 51.354055][ T4880] WARNING: CPU: 1 PID: 4880 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 51.355450][ T4880] Modules linked in: [ 51.356021][ T4880] CPU: 1 PID: 4880 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.357407][ T4880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 51.358872][ T4880] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.359980][ T4880] pc : btrfs_quota_enable+0xff8/0x1674 [ 51.360743][ T4880] lr : btrfs_quota_enable+0xff8/0x1674 [ 51.361558][ T4880] sp : ffff800020607ae0 [ 51.362164][ T4880] x29: ffff800020607c40 x28: 0000000000001798 x27: ffff7000040c0f6c [ 51.363419][ T4880] x26: ffff0000de5a99a0 x25: ffff0000d8464000 x24: fffffffffffffff4 [ 51.364565][ T4880] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000de5a99f8 [ 51.365749][ T4880] x20: 1fffe0001bcb533f x19: ffff0000d13dc000 x18: 0000000000000001 [ 51.366976][ T4880] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 51.368236][ T4880] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 51.369422][ T4880] x11: 0000000000000000 x10: 0000000000000000 x9 : b96a5d041ab67600 [ 51.370454][ T4880] x8 : b96a5d041ab67600 x7 : 0000000000000001 x6 : 0000000000000001 [ 51.371503][ T4880] x5 : ffff8000206073f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 51.372587][ T4880] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 51.373677][ T4880] Call trace: [ 51.374107][ T4880] btrfs_quota_enable+0xff8/0x1674 [ 51.374837][ T4880] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 51.375610][ T4880] btrfs_ioctl+0x96c/0xa8c [ 51.376250][ T4880] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.376986][ T4880] invoke_syscall+0x98/0x2b0 [ 51.377726][ T4880] el0_svc_common+0x138/0x258 [ 51.378503][ T4880] do_el0_svc+0x58/0x13c [ 51.379131][ T4880] el0_svc+0x78/0x1d0 [ 51.379760][ T4880] el0t_64_sync_handler+0xcc/0xe4 [ 51.380447][ T4880] el0t_64_sync+0x1a0/0x1a4 [ 51.381095][ T4880] irq event stamp: 78454 [ 51.381752][ T4880] hardirqs last enabled at (78453): [] __up_console_sem+0xb4/0xfc [ 51.383195][ T4880] hardirqs last disabled at (78454): [] el1_dbg+0x24/0x80 [ 51.384453][ T4880] softirqs last enabled at (78434): [] handle_softirqs+0xa40/0xbe4 [ 51.385879][ T4880] softirqs last disabled at (78381): [] __irq_exit_rcu+0x240/0x43c [ 51.387364][ T4880] ---[ end trace 08f01cbbc25c5be6 ]--- [ 51.389148][ T4880] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 51.390453][ T4880] BTRFS info (device loop0): forced readonly [ 51.563831][ T4901] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4901) [ 51.568145][ T4901] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 51.569900][ T4901] BTRFS info (device loop0): using free space tree [ 51.571909][ T4901] BTRFS info (device loop0): has skinny extents [ 51.585958][ T4901] BTRFS info (device loop0): enabling ssd optimizations [ 51.589716][ T4901] FAULT_INJECTION: forcing a failure. [ 51.589716][ T4901] name failslab, interval 1, probability 0, space 0, times 0 [ 51.592907][ T4901] CPU: 0 PID: 4901 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.594292][ T4901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 51.595825][ T4901] Call trace: [ 51.596334][ T4901] dump_backtrace+0x0/0x458 [ 51.597033][ T4901] show_stack+0x2c/0x3c [ 51.597694][ T4901] __dump_stack+0x30/0x40 [ 51.598362][ T4901] dump_stack_lvl+0xf4/0x15c [ 51.599062][ T4901] dump_stack+0x1c/0x5c [ 51.599650][ T4901] should_fail+0x3bc/0x514 [ 51.600305][ T4901] __should_failslab+0xbc/0x10c [ 51.601023][ T4901] should_failslab+0x10/0x28 [ 51.601714][ T4901] slab_pre_alloc_hook+0x64/0xe8 [ 51.602528][ T4901] kmem_cache_alloc_trace+0x98/0x3ec [ 51.603287][ T4901] btrfs_alloc_root+0x8c/0x97c [ 51.604070][ T4901] btrfs_create_tree+0x110/0x998 [ 51.604825][ T4901] btrfs_quota_enable+0x37c/0x1674 [ 51.605537][ T4901] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 51.606354][ T4901] btrfs_ioctl+0x96c/0xa8c [ 51.606985][ T4901] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.607738][ T4901] invoke_syscall+0x98/0x2b0 [ 51.608448][ T4901] el0_svc_common+0x138/0x258 [ 51.609175][ T4901] do_el0_svc+0x58/0x13c [ 51.609812][ T4901] el0_svc+0x78/0x1d0 [ 51.610382][ T4901] el0t_64_sync_handler+0xcc/0xe4 [ 51.611172][ T4901] el0t_64_sync+0x1a0/0x1a4 [ 51.614817][ T4901] ------------[ cut here ]------------ [ 51.615703][ T4901] WARNING: CPU: 0 PID: 4901 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 51.617160][ T4901] Modules linked in: [ 51.617726][ T4901] CPU: 0 PID: 4901 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.619011][ T4901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 51.620472][ T4901] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.621586][ T4901] pc : btrfs_quota_enable+0xff8/0x1674 [ 51.622392][ T4901] lr : btrfs_quota_enable+0xff8/0x1674 [ 51.623222][ T4901] sp : ffff80001fc17ae0 [ 51.623863][ T4901] x29: ffff80001fc17c40 x28: 0000000000001798 x27: ffff700003f82f6c [ 51.625034][ T4901] x26: ffff0000dc9d3b00 x25: ffff0000c15fa000 x24: fffffffffffffff4 [ 51.626182][ T4901] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dc9d3b58 [ 51.627435][ T4901] x20: 1fffe0001b93a76b x19: ffff0000d0ae8000 x18: 0000000000000001 [ 51.628654][ T4901] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 51.629777][ T4901] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 51.630915][ T4901] x11: 0000000000000000 x10: 0000000000000000 x9 : 4de5142168312d00 [ 51.632128][ T4901] x8 : 4de5142168312d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 51.633374][ T4901] x5 : ffff80001fc173f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 51.634614][ T4901] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 51.635863][ T4901] Call trace: [ 51.636388][ T4901] btrfs_quota_enable+0xff8/0x1674 [ 51.637133][ T4901] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 51.637899][ T4901] btrfs_ioctl+0x96c/0xa8c [ 51.638588][ T4901] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.639343][ T4901] invoke_syscall+0x98/0x2b0 [ 51.640004][ T4901] el0_svc_common+0x138/0x258 [ 51.640711][ T4901] do_el0_svc+0x58/0x13c [ 51.641386][ T4901] el0_svc+0x78/0x1d0 [ 51.642011][ T4901] el0t_64_sync_handler+0xcc/0xe4 [ 51.642765][ T4901] el0t_64_sync+0x1a0/0x1a4 [ 51.643427][ T4901] irq event stamp: 79258 [ 51.644034][ T4901] hardirqs last enabled at (79257): [] __up_console_sem+0xb4/0xfc [ 51.645528][ T4901] hardirqs last disabled at (79258): [] el1_dbg+0x24/0x80 [ 51.646842][ T4901] softirqs last enabled at (79238): [] handle_softirqs+0xa40/0xbe4 [ 51.648362][ T4901] softirqs last disabled at (79191): [] __irq_exit_rcu+0x240/0x43c [ 51.649896][ T4901] ---[ end trace 08f01cbbc25c5be7 ]--- [ 51.653465][ T4901] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 51.654894][ T4901] BTRFS info (device loop0): forced readonly 1970/01/01 00:00:51 executed programs: 14 [ 51.841467][ T4922] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4922) [ 51.846830][ T4922] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 51.848473][ T4922] BTRFS info (device loop0): using free space tree [ 51.849474][ T4922] BTRFS info (device loop0): has skinny extents [ 51.857930][ T4922] BTRFS info (device loop0): enabling ssd optimizations [ 51.861308][ T4922] FAULT_INJECTION: forcing a failure. [ 51.861308][ T4922] name failslab, interval 1, probability 0, space 0, times 0 [ 51.863486][ T4922] CPU: 1 PID: 4922 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.864908][ T4922] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 51.866559][ T4922] Call trace: [ 51.867068][ T4922] dump_backtrace+0x0/0x458 [ 51.867809][ T4922] show_stack+0x2c/0x3c [ 51.868491][ T4922] __dump_stack+0x30/0x40 [ 51.869156][ T4922] dump_stack_lvl+0xf4/0x15c [ 51.869873][ T4922] dump_stack+0x1c/0x5c [ 51.870471][ T4922] should_fail+0x3bc/0x514 [ 51.871171][ T4922] __should_failslab+0xbc/0x10c [ 51.871944][ T4922] should_failslab+0x10/0x28 [ 51.872723][ T4922] slab_pre_alloc_hook+0x64/0xe8 [ 51.873523][ T4922] kmem_cache_alloc_trace+0x98/0x3ec [ 51.874331][ T4922] btrfs_alloc_root+0x8c/0x97c [ 51.875010][ T4922] btrfs_create_tree+0x110/0x998 [ 51.875739][ T4922] btrfs_quota_enable+0x37c/0x1674 [ 51.876511][ T4922] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 51.877301][ T4922] btrfs_ioctl+0x96c/0xa8c [ 51.877959][ T4922] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.878641][ T4922] invoke_syscall+0x98/0x2b0 [ 51.879255][ T4922] el0_svc_common+0x138/0x258 [ 51.879869][ T4922] do_el0_svc+0x58/0x13c [ 51.880538][ T4922] el0_svc+0x78/0x1d0 [ 51.881093][ T4922] el0t_64_sync_handler+0xcc/0xe4 [ 51.881800][ T4922] el0t_64_sync+0x1a0/0x1a4 [ 51.884132][ T4922] ------------[ cut here ]------------ [ 51.885063][ T4922] WARNING: CPU: 1 PID: 4922 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 51.886553][ T4922] Modules linked in: [ 51.887140][ T4922] CPU: 1 PID: 4922 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.888540][ T4922] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 51.890055][ T4922] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.891269][ T4922] pc : btrfs_quota_enable+0xff8/0x1674 [ 51.892111][ T4922] lr : btrfs_quota_enable+0xff8/0x1674 [ 51.892920][ T4922] sp : ffff800020727ae0 [ 51.893514][ T4922] x29: ffff800020727c40 x28: 0000000000001798 x27: ffff7000040e4f6c [ 51.894720][ T4922] x26: ffff0000de5a9b00 x25: ffff0000c8682000 x24: fffffffffffffff4 [ 51.895912][ T4922] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000de5a9b58 [ 51.897062][ T4922] x20: 1fffe0001bcb536b x19: ffff0000c8634000 x18: 0000000000000001 [ 51.898195][ T4922] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 51.899344][ T4922] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 51.900577][ T4922] x11: 0000000000000000 x10: 0000000000000000 x9 : 41bf1af9676b8000 [ 51.901778][ T4922] x8 : 41bf1af9676b8000 x7 : 0000000000000001 x6 : 0000000000000001 [ 51.903022][ T4922] x5 : ffff8000207273f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 51.904255][ T4922] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 51.905480][ T4922] Call trace: [ 51.905972][ T4922] btrfs_quota_enable+0xff8/0x1674 [ 51.906722][ T4922] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 51.907466][ T4922] btrfs_ioctl+0x96c/0xa8c [ 51.908122][ T4922] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.908869][ T4922] invoke_syscall+0x98/0x2b0 [ 51.909517][ T4922] el0_svc_common+0x138/0x258 [ 51.910190][ T4922] do_el0_svc+0x58/0x13c [ 51.910838][ T4922] el0_svc+0x78/0x1d0 [ 51.911471][ T4922] el0t_64_sync_handler+0xcc/0xe4 [ 51.912252][ T4922] el0t_64_sync+0x1a0/0x1a4 [ 51.912940][ T4922] irq event stamp: 79140 [ 51.913560][ T4922] hardirqs last enabled at (79139): [] __up_console_sem+0xb4/0xfc [ 51.914994][ T4922] hardirqs last disabled at (79140): [] el1_dbg+0x24/0x80 [ 51.916294][ T4922] softirqs last enabled at (79120): [] handle_softirqs+0xa40/0xbe4 [ 51.917679][ T4922] softirqs last disabled at (79025): [] __irq_exit_rcu+0x240/0x43c [ 51.919084][ T4922] ---[ end trace 08f01cbbc25c5be8 ]--- [ 51.920614][ T4922] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 51.922198][ T4922] BTRFS info (device loop0): forced readonly [ 52.096285][ T4943] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4943) [ 52.099351][ T4943] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 52.101525][ T4943] BTRFS info (device loop0): using free space tree [ 52.102566][ T4943] BTRFS info (device loop0): has skinny extents [ 52.111398][ T4943] BTRFS info (device loop0): enabling ssd optimizations [ 52.114736][ T4943] FAULT_INJECTION: forcing a failure. [ 52.114736][ T4943] name failslab, interval 1, probability 0, space 0, times 0 [ 52.116586][ T4943] CPU: 1 PID: 4943 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.117955][ T4943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 52.119330][ T4943] Call trace: [ 52.119823][ T4943] dump_backtrace+0x0/0x458 [ 52.120506][ T4943] show_stack+0x2c/0x3c [ 52.121130][ T4943] __dump_stack+0x30/0x40 [ 52.121749][ T4943] dump_stack_lvl+0xf4/0x15c [ 52.122411][ T4943] dump_stack+0x1c/0x5c [ 52.123029][ T4943] should_fail+0x3bc/0x514 [ 52.123677][ T4943] __should_failslab+0xbc/0x10c [ 52.124406][ T4943] should_failslab+0x10/0x28 [ 52.125117][ T4943] slab_pre_alloc_hook+0x64/0xe8 [ 52.125880][ T4943] kmem_cache_alloc+0x94/0x3d4 [ 52.126623][ T4943] start_transaction+0x4d0/0x13ec [ 52.127444][ T4943] btrfs_start_transaction+0x34/0x44 [ 52.128202][ T4943] btrfs_quota_enable+0x1d0/0x1674 [ 52.129102][ T4943] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 52.129955][ T4943] btrfs_ioctl+0x96c/0xa8c [ 52.130586][ T4943] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.131318][ T4943] invoke_syscall+0x98/0x2b0 [ 52.131990][ T4943] el0_svc_common+0x138/0x258 [ 52.132688][ T4943] do_el0_svc+0x58/0x13c [ 52.133329][ T4943] el0_svc+0x78/0x1d0 [ 52.133946][ T4943] el0t_64_sync_handler+0xcc/0xe4 [ 52.134728][ T4943] el0t_64_sync+0x1a0/0x1a4 [ 52.319900][ T4964] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4964) [ 52.322904][ T4964] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 52.324538][ T4964] BTRFS info (device loop0): using free space tree [ 52.325526][ T4964] BTRFS info (device loop0): has skinny extents [ 52.335746][ T4964] BTRFS info (device loop0): enabling ssd optimizations [ 52.338951][ T4964] FAULT_INJECTION: forcing a failure. [ 52.338951][ T4964] name failslab, interval 1, probability 0, space 0, times 0 [ 52.341386][ T4964] CPU: 1 PID: 4964 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.342855][ T4964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 52.344448][ T4964] Call trace: [ 52.344963][ T4964] dump_backtrace+0x0/0x458 [ 52.345686][ T4964] show_stack+0x2c/0x3c [ 52.346323][ T4964] __dump_stack+0x30/0x40 [ 52.346898][ T4964] dump_stack_lvl+0xf4/0x15c [ 52.347522][ T4964] dump_stack+0x1c/0x5c [ 52.348170][ T4964] should_fail+0x3bc/0x514 [ 52.348775][ T4964] __should_failslab+0xbc/0x10c [ 52.349626][ T4964] should_failslab+0x10/0x28 [ 52.350428][ T4964] slab_pre_alloc_hook+0x64/0xe8 [ 52.351230][ T4964] kmem_cache_alloc_trace+0x98/0x3ec [ 52.352068][ T4964] btrfs_alloc_root+0x8c/0x97c [ 52.352825][ T4964] btrfs_create_tree+0x110/0x998 [ 52.353587][ T4964] btrfs_quota_enable+0x37c/0x1674 [ 52.354400][ T4964] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 52.355158][ T4964] btrfs_ioctl+0x96c/0xa8c [ 52.355842][ T4964] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.356582][ T4964] invoke_syscall+0x98/0x2b0 [ 52.357275][ T4964] el0_svc_common+0x138/0x258 [ 52.357981][ T4964] do_el0_svc+0x58/0x13c [ 52.358591][ T4964] el0_svc+0x78/0x1d0 [ 52.359163][ T4964] el0t_64_sync_handler+0xcc/0xe4 [ 52.359946][ T4964] el0t_64_sync+0x1a0/0x1a4 [ 52.360804][ T4964] ------------[ cut here ]------------ [ 52.361910][ T4964] WARNING: CPU: 1 PID: 4964 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 52.363432][ T4964] Modules linked in: [ 52.364078][ T4964] CPU: 1 PID: 4964 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.365489][ T4964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 52.366954][ T4964] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.368182][ T4964] pc : btrfs_quota_enable+0xff8/0x1674 [ 52.368911][ T4964] lr : btrfs_quota_enable+0xff8/0x1674 [ 52.369678][ T4964] sp : ffff800020e67ae0 [ 52.370258][ T4964] x29: ffff800020e67c40 x28: 0000000000001798 x27: ffff7000041ccf6c [ 52.371440][ T4964] x26: ffff0000de5a9d10 x25: ffff0000e42c0000 x24: fffffffffffffff4 [ 52.372576][ T4964] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000de5a9d68 [ 52.373675][ T4964] x20: 1fffe0001bcb53ad x19: ffff0000d6cf8000 x18: 0000000000000001 [ 52.374948][ T4964] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 52.376161][ T4964] x14: 0000000000000001 x13: 1ffff000041cce7c x12: 0000000000ff0100 [ 52.377400][ T4964] x11: 0000000000000000 x10: 0000000000000000 x9 : aa75fdc15ad07300 [ 52.378583][ T4964] x8 : aa75fdc15ad07300 x7 : 0000000000000001 x6 : 0000000000000001 [ 52.379765][ T4964] x5 : ffff800020e673f8 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 52.380957][ T4964] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 52.382127][ T4964] Call trace: [ 52.382590][ T4964] btrfs_quota_enable+0xff8/0x1674 [ 52.383268][ T4964] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 52.383996][ T4964] btrfs_ioctl+0x96c/0xa8c [ 52.384677][ T4964] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.385399][ T4964] invoke_syscall+0x98/0x2b0 [ 52.386060][ T4964] el0_svc_common+0x138/0x258 [ 52.386736][ T4964] do_el0_svc+0x58/0x13c [ 52.387323][ T4964] el0_svc+0x78/0x1d0 [ 52.387911][ T4964] el0t_64_sync_handler+0xcc/0xe4 [ 52.388667][ T4964] el0t_64_sync+0x1a0/0x1a4 [ 52.389309][ T4964] irq event stamp: 78798 [ 52.389871][ T4964] hardirqs last enabled at (78797): [] __up_console_sem+0xb4/0xfc [ 52.391168][ T4964] hardirqs last disabled at (78798): [] el1_dbg+0x24/0x80 [ 52.392387][ T4964] softirqs last enabled at (78788): [] handle_softirqs+0xa40/0xbe4 [ 52.393775][ T4964] softirqs last disabled at (78731): [] __irq_exit_rcu+0x240/0x43c [ 52.395203][ T4964] ---[ end trace 08f01cbbc25c5be9 ]--- [ 52.396176][ T4964] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 52.397617][ T4964] BTRFS info (device loop0): forced readonly [ 52.614883][ T4985] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4985) [ 52.618316][ T4985] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 52.619786][ T4985] BTRFS info (device loop0): using free space tree [ 52.620701][ T4985] BTRFS info (device loop0): has skinny extents [ 52.628975][ T4985] BTRFS info (device loop0): enabling ssd optimizations [ 52.634293][ T4985] FAULT_INJECTION: forcing a failure. [ 52.634293][ T4985] name failslab, interval 1, probability 0, space 0, times 0 [ 52.636366][ T4985] CPU: 0 PID: 4985 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.637736][ T4985] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 52.639158][ T4985] Call trace: [ 52.639685][ T4985] dump_backtrace+0x0/0x458 [ 52.640377][ T4985] show_stack+0x2c/0x3c [ 52.640966][ T4985] __dump_stack+0x30/0x40 [ 52.641605][ T4985] dump_stack_lvl+0xf4/0x15c [ 52.642327][ T4985] dump_stack+0x1c/0x5c [ 52.642918][ T4985] should_fail+0x3bc/0x514 [ 52.643584][ T4985] __should_failslab+0xbc/0x10c [ 52.644336][ T4985] should_failslab+0x10/0x28 [ 52.645050][ T4985] slab_pre_alloc_hook+0x64/0xe8 [ 52.645844][ T4985] kmem_cache_alloc_trace+0x98/0x3ec [ 52.646655][ T4985] btrfs_alloc_root+0x8c/0x97c [ 52.647369][ T4985] btrfs_create_tree+0x110/0x998 [ 52.648135][ T4985] btrfs_quota_enable+0x37c/0x1674 [ 52.648916][ T4985] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 52.649784][ T4985] btrfs_ioctl+0x96c/0xa8c [ 52.650456][ T4985] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.651201][ T4985] invoke_syscall+0x98/0x2b0 [ 52.651877][ T4985] el0_svc_common+0x138/0x258 [ 52.652626][ T4985] do_el0_svc+0x58/0x13c [ 52.653236][ T4985] el0_svc+0x78/0x1d0 [ 52.653830][ T4985] el0t_64_sync_handler+0xcc/0xe4 [ 52.654504][ T4985] el0t_64_sync+0x1a0/0x1a4 [ 52.655462][ T4985] ------------[ cut here ]------------ [ 52.656420][ T4985] WARNING: CPU: 0 PID: 4985 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 52.657956][ T4985] Modules linked in: [ 52.658507][ T4985] CPU: 0 PID: 4985 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.659747][ T4985] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 52.661235][ T4985] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.662450][ T4985] pc : btrfs_quota_enable+0xff8/0x1674 [ 52.663282][ T4985] lr : btrfs_quota_enable+0xff8/0x1674 [ 52.664097][ T4985] sp : ffff800020ef7ae0 [ 52.664735][ T4985] x29: ffff800020ef7c40 x28: 0000000000001798 x27: ffff7000041def6c [ 52.665980][ T4985] x26: ffff0000dc9d3c60 x25: ffff0000db646000 x24: fffffffffffffff4 [ 52.667217][ T4985] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dc9d3cb8 [ 52.668376][ T4985] x20: 1fffe0001b93a797 x19: ffff0000da97c000 x18: 0000000000000001 [ 52.669600][ T4985] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 52.670869][ T4985] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 52.672065][ T4985] x11: 0000000000000000 x10: 0000000000000000 x9 : 0a4cc6cfb9b72400 [ 52.673265][ T4985] x8 : 0a4cc6cfb9b72400 x7 : 0000000000000001 x6 : 0000000000000001 [ 52.674493][ T4985] x5 : ffff800020ef73f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 52.675775][ T4985] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 52.677012][ T4985] Call trace: [ 52.677500][ T4985] btrfs_quota_enable+0xff8/0x1674 [ 52.678284][ T4985] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 52.679146][ T4985] btrfs_ioctl+0x96c/0xa8c [ 52.679783][ T4985] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.680500][ T4985] invoke_syscall+0x98/0x2b0 [ 52.681133][ T4985] el0_svc_common+0x138/0x258 [ 52.681824][ T4985] do_el0_svc+0x58/0x13c [ 52.682446][ T4985] el0_svc+0x78/0x1d0 [ 52.683017][ T4985] el0t_64_sync_handler+0xcc/0xe4 [ 52.683755][ T4985] el0t_64_sync+0x1a0/0x1a4 [ 52.684414][ T4985] irq event stamp: 79398 [ 52.684983][ T4985] hardirqs last enabled at (79397): [] __up_console_sem+0xb4/0xfc [ 52.686353][ T4985] hardirqs last disabled at (79398): [] el1_dbg+0x24/0x80 [ 52.687706][ T4985] softirqs last enabled at (79378): [] handle_softirqs+0xa40/0xbe4 [ 52.689114][ T4985] softirqs last disabled at (79321): [] __irq_exit_rcu+0x240/0x43c [ 52.690382][ T4985] ---[ end trace 08f01cbbc25c5bea ]--- [ 52.692147][ T4985] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 52.693613][ T4985] BTRFS info (device loop0): forced readonly [ 52.741152][ T4559] Bluetooth: hci0: command 0x040f tx timeout [ 52.881535][ T5006] set_capacity_and_notify: 8 callbacks suppressed [ 52.881544][ T5006] loop0: detected capacity change from 0 to 32768 [ 52.892281][ T5006] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5006) [ 52.900392][ T5006] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 52.904745][ T5006] BTRFS info (device loop0): using free space tree [ 52.905907][ T5006] BTRFS info (device loop0): has skinny extents [ 52.915920][ T5006] BTRFS info (device loop0): enabling ssd optimizations [ 52.919557][ T5006] FAULT_INJECTION: forcing a failure. [ 52.919557][ T5006] name failslab, interval 1, probability 0, space 0, times 0 [ 52.922192][ T5006] CPU: 1 PID: 5006 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.923639][ T5006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 52.925246][ T5006] Call trace: [ 52.925753][ T5006] dump_backtrace+0x0/0x458 [ 52.926496][ T5006] show_stack+0x2c/0x3c [ 52.927166][ T5006] __dump_stack+0x30/0x40 [ 52.927837][ T5006] dump_stack_lvl+0xf4/0x15c [ 52.928530][ T5006] dump_stack+0x1c/0x5c [ 52.929086][ T5006] should_fail+0x3bc/0x514 [ 52.929726][ T5006] __should_failslab+0xbc/0x10c [ 52.930520][ T5006] should_failslab+0x10/0x28 [ 52.931231][ T5006] slab_pre_alloc_hook+0x64/0xe8 [ 52.931970][ T5006] kmem_cache_alloc_trace+0x98/0x3ec [ 52.932812][ T5006] btrfs_alloc_root+0x8c/0x97c [ 52.933483][ T5006] btrfs_create_tree+0x110/0x998 [ 52.934218][ T5006] btrfs_quota_enable+0x37c/0x1674 [ 52.934894][ T5006] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 52.935600][ T5006] btrfs_ioctl+0x96c/0xa8c [ 52.936217][ T5006] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.936942][ T5006] invoke_syscall+0x98/0x2b0 [ 52.937606][ T5006] el0_svc_common+0x138/0x258 [ 52.938261][ T5006] do_el0_svc+0x58/0x13c [ 52.938885][ T5006] el0_svc+0x78/0x1d0 [ 52.939479][ T5006] el0t_64_sync_handler+0xcc/0xe4 [ 52.940230][ T5006] el0t_64_sync+0x1a0/0x1a4 [ 52.943025][ T5006] ------------[ cut here ]------------ [ 52.944011][ T5006] WARNING: CPU: 1 PID: 5006 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 52.945543][ T5006] Modules linked in: [ 52.946159][ T5006] CPU: 1 PID: 5006 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.947540][ T5006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 52.949114][ T5006] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.950210][ T5006] pc : btrfs_quota_enable+0xff8/0x1674 [ 52.951025][ T5006] lr : btrfs_quota_enable+0xff8/0x1674 [ 52.951785][ T5006] sp : ffff800021097ae0 [ 52.952351][ T5006] x29: ffff800021097c40 x28: 0000000000001798 x27: ffff700004212f6c [ 52.953519][ T5006] x26: ffff0000de5a9e70 x25: ffff0000e42f2000 x24: fffffffffffffff4 [ 52.954703][ T5006] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000de5a9ec8 [ 52.955994][ T5006] x20: 1fffe0001bcb53d9 x19: ffff0000d2438000 x18: 0000000000000001 [ 52.957187][ T5006] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 52.958342][ T5006] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 52.959499][ T5006] x11: 0000000000000000 x10: 0000000000000000 x9 : fb1721b11d3c7400 [ 52.960755][ T5006] x8 : fb1721b11d3c7400 x7 : 0000000000000001 x6 : 0000000000000001 [ 52.961906][ T5006] x5 : ffff8000210973f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 52.963087][ T5006] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 52.964278][ T5006] Call trace: [ 52.964757][ T5006] btrfs_quota_enable+0xff8/0x1674 [ 52.965511][ T5006] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 52.966275][ T5006] btrfs_ioctl+0x96c/0xa8c [ 52.966912][ T5006] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.967628][ T5006] invoke_syscall+0x98/0x2b0 [ 52.968358][ T5006] el0_svc_common+0x138/0x258 [ 52.969014][ T5006] do_el0_svc+0x58/0x13c [ 52.969624][ T5006] el0_svc+0x78/0x1d0 [ 52.970207][ T5006] el0t_64_sync_handler+0xcc/0xe4 [ 52.971023][ T5006] el0t_64_sync+0x1a0/0x1a4 [ 52.971732][ T5006] irq event stamp: 79598 [ 52.972367][ T5006] hardirqs last enabled at (79597): [] __up_console_sem+0xb4/0xfc [ 52.973749][ T5006] hardirqs last disabled at (79598): [] el1_dbg+0x24/0x80 [ 52.974994][ T5006] softirqs last enabled at (79578): [] handle_softirqs+0xa40/0xbe4 [ 52.976345][ T5006] softirqs last disabled at (79541): [] __irq_exit_rcu+0x240/0x43c [ 52.977742][ T5006] ---[ end trace 08f01cbbc25c5beb ]--- [ 52.979391][ T5006] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 52.980764][ T5006] BTRFS info (device loop0): forced readonly [ 53.154738][ T5027] loop0: detected capacity change from 0 to 32768 [ 53.157053][ T5027] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5027) [ 53.160483][ T5027] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 53.162146][ T5027] BTRFS info (device loop0): using free space tree [ 53.163290][ T5027] BTRFS info (device loop0): has skinny extents [ 53.174857][ T5027] BTRFS info (device loop0): enabling ssd optimizations [ 53.178385][ T5027] FAULT_INJECTION: forcing a failure. [ 53.178385][ T5027] name failslab, interval 1, probability 0, space 0, times 0 [ 53.180551][ T5027] CPU: 1 PID: 5027 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.181970][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 53.183469][ T5027] Call trace: [ 53.183968][ T5027] dump_backtrace+0x0/0x458 [ 53.184597][ T5027] show_stack+0x2c/0x3c [ 53.185228][ T5027] __dump_stack+0x30/0x40 [ 53.185928][ T5027] dump_stack_lvl+0xf4/0x15c [ 53.186564][ T5027] dump_stack+0x1c/0x5c [ 53.187209][ T5027] should_fail+0x3bc/0x514 [ 53.187905][ T5027] __should_failslab+0xbc/0x10c [ 53.188649][ T5027] should_failslab+0x10/0x28 [ 53.189358][ T5027] slab_pre_alloc_hook+0x64/0xe8 [ 53.190100][ T5027] kmem_cache_alloc_trace+0x98/0x3ec [ 53.190891][ T5027] btrfs_alloc_root+0x8c/0x97c [ 53.191614][ T5027] btrfs_create_tree+0x110/0x998 [ 53.192326][ T5027] btrfs_quota_enable+0x37c/0x1674 [ 53.192999][ T5027] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 53.193770][ T5027] btrfs_ioctl+0x96c/0xa8c [ 53.194429][ T5027] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.195112][ T5027] invoke_syscall+0x98/0x2b0 [ 53.195869][ T5027] el0_svc_common+0x138/0x258 [ 53.196623][ T5027] do_el0_svc+0x58/0x13c [ 53.197301][ T5027] el0_svc+0x78/0x1d0 [ 53.197921][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 53.198714][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 53.200257][ T5027] ------------[ cut here ]------------ [ 53.201211][ T5027] WARNING: CPU: 1 PID: 5027 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 53.202726][ T5027] Modules linked in: [ 53.203331][ T5027] CPU: 1 PID: 5027 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.204858][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 53.206421][ T5027] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.207601][ T5027] pc : btrfs_quota_enable+0xff8/0x1674 [ 53.208526][ T5027] lr : btrfs_quota_enable+0xff8/0x1674 [ 53.209352][ T5027] sp : ffff8000211d7ae0 [ 53.209975][ T5027] x29: ffff8000211d7c40 x28: 0000000000001798 x27: ffff70000423af6c [ 53.211205][ T5027] x26: ffff0000de5a90b0 x25: ffff0000ce75e000 x24: fffffffffffffff4 [ 53.212493][ T5027] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000de5a9108 [ 53.213753][ T5027] x20: 1fffe0001bcb5221 x19: ffff0000d2438000 x18: 0000000000000001 [ 53.214965][ T5027] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 53.216223][ T5027] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 53.217419][ T5027] x11: 0000000000000000 x10: 0000000000000000 x9 : 73bb38bdc28afa00 [ 53.218672][ T5027] x8 : 73bb38bdc28afa00 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.219938][ T5027] x5 : ffff8000211d73f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 53.221201][ T5027] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 53.222449][ T5027] Call trace: [ 53.222913][ T5027] btrfs_quota_enable+0xff8/0x1674 [ 53.223650][ T5027] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 53.224394][ T5027] btrfs_ioctl+0x96c/0xa8c [ 53.225091][ T5027] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.225859][ T5027] invoke_syscall+0x98/0x2b0 [ 53.226542][ T5027] el0_svc_common+0x138/0x258 [ 53.227209][ T5027] do_el0_svc+0x58/0x13c [ 53.227825][ T5027] el0_svc+0x78/0x1d0 [ 53.228433][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 53.229141][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 53.229738][ T5027] irq event stamp: 79550 [ 53.230358][ T5027] hardirqs last enabled at (79549): [] __up_console_sem+0xb4/0xfc [ 53.231745][ T5027] hardirqs last disabled at (79550): [] el1_dbg+0x24/0x80 [ 53.232914][ T5027] softirqs last enabled at (79540): [] handle_softirqs+0xa40/0xbe4 [ 53.234182][ T5027] softirqs last disabled at (79531): [] __irq_exit_rcu+0x240/0x43c [ 53.235607][ T5027] ---[ end trace 08f01cbbc25c5bec ]--- [ 53.237611][ T5027] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 53.239146][ T5027] BTRFS info (device loop0): forced readonly [ 53.411453][ T5048] loop0: detected capacity change from 0 to 32768 [ 53.414235][ T5048] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5048) [ 53.418284][ T5048] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 53.419833][ T5048] BTRFS info (device loop0): using free space tree [ 53.420834][ T5048] BTRFS info (device loop0): has skinny extents [ 53.428486][ T5048] BTRFS info (device loop0): enabling ssd optimizations [ 53.433989][ T5048] FAULT_INJECTION: forcing a failure. [ 53.433989][ T5048] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 53.436288][ T5048] CPU: 1 PID: 5048 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.437571][ T5048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 53.439201][ T5048] Call trace: [ 53.439674][ T5048] dump_backtrace+0x0/0x458 [ 53.440448][ T5048] show_stack+0x2c/0x3c [ 53.441100][ T5048] __dump_stack+0x30/0x40 [ 53.441738][ T5048] dump_stack_lvl+0xf4/0x15c [ 53.442471][ T5048] dump_stack+0x1c/0x5c [ 53.443139][ T5048] should_fail+0x3bc/0x514 [ 53.443888][ T5048] should_fail_alloc_page+0x74/0xa8 [ 53.444788][ T5048] prepare_alloc_pages+0x160/0x45c [ 53.445638][ T5048] __alloc_pages+0x108/0x470 [ 53.446335][ T5048] alloc_pages+0x34c/0x5c0 [ 53.446942][ T5048] new_slab+0xe0/0x544 [ 53.447544][ T5048] ___slab_alloc+0x6b4/0xd8c [ 53.448211][ T5048] __slab_alloc+0x68/0xc0 [ 53.448843][ T5048] kmem_cache_alloc+0x2a4/0x3d4 [ 53.449576][ T5048] start_transaction+0x4d0/0x13ec [ 53.450307][ T5048] btrfs_start_transaction+0x34/0x44 [ 53.451071][ T5048] btrfs_quota_enable+0x1d0/0x1674 [ 53.451833][ T5048] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 53.452624][ T5048] btrfs_ioctl+0x96c/0xa8c [ 53.453274][ T5048] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.454046][ T5048] invoke_syscall+0x98/0x2b0 [ 53.454700][ T5048] el0_svc_common+0x138/0x258 [ 53.455452][ T5048] do_el0_svc+0x58/0x13c [ 53.456059][ T5048] el0_svc+0x78/0x1d0 [ 53.456647][ T5048] el0t_64_sync_handler+0xcc/0xe4 [ 53.457438][ T5048] el0t_64_sync+0x1a0/0x1a4 [ 53.470811][ T354] BTRFS info (device loop0): qgroup scan completed (inconsistency flag cleared) [ 53.650655][ T5069] loop0: detected capacity change from 0 to 32768 [ 53.654994][ T5069] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5069) [ 53.658180][ T5069] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 53.660541][ T5069] BTRFS info (device loop0): using free space tree [ 53.661992][ T5069] BTRFS info (device loop0): has skinny extents [ 53.673379][ T5069] BTRFS info (device loop0): enabling ssd optimizations [ 53.676992][ T5069] FAULT_INJECTION: forcing a failure. [ 53.676992][ T5069] name failslab, interval 1, probability 0, space 0, times 0 [ 53.679159][ T5069] CPU: 1 PID: 5069 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.680637][ T5069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 53.682271][ T5069] Call trace: [ 53.682752][ T5069] dump_backtrace+0x0/0x458 [ 53.683433][ T5069] show_stack+0x2c/0x3c [ 53.684028][ T5069] __dump_stack+0x30/0x40 [ 53.684645][ T5069] dump_stack_lvl+0xf4/0x15c [ 53.685326][ T5069] dump_stack+0x1c/0x5c [ 53.685973][ T5069] should_fail+0x3bc/0x514 [ 53.686643][ T5069] __should_failslab+0xbc/0x10c [ 53.687358][ T5069] should_failslab+0x10/0x28 [ 53.687978][ T5069] slab_pre_alloc_hook+0x64/0xe8 [ 53.688697][ T5069] kmem_cache_alloc_trace+0x98/0x3ec [ 53.689504][ T5069] btrfs_alloc_root+0x8c/0x97c [ 53.690209][ T5069] btrfs_create_tree+0x110/0x998 [ 53.690929][ T5069] btrfs_quota_enable+0x37c/0x1674 [ 53.691706][ T5069] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 53.692474][ T5069] btrfs_ioctl+0x96c/0xa8c [ 53.693078][ T5069] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.693778][ T5069] invoke_syscall+0x98/0x2b0 [ 53.694468][ T5069] el0_svc_common+0x138/0x258 [ 53.695133][ T5069] do_el0_svc+0x58/0x13c [ 53.695782][ T5069] el0_svc+0x78/0x1d0 [ 53.696407][ T5069] el0t_64_sync_handler+0xcc/0xe4 [ 53.697178][ T5069] el0t_64_sync+0x1a0/0x1a4 [ 53.699453][ T5069] ------------[ cut here ]------------ [ 53.700416][ T5069] WARNING: CPU: 1 PID: 5069 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 53.701926][ T5069] Modules linked in: [ 53.702541][ T5069] CPU: 1 PID: 5069 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.703987][ T5069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 53.705553][ T5069] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.706711][ T5069] pc : btrfs_quota_enable+0xff8/0x1674 [ 53.707538][ T5069] lr : btrfs_quota_enable+0xff8/0x1674 [ 53.708322][ T5069] sp : ffff800021367ae0 [ 53.708999][ T5069] x29: ffff800021367c40 x28: 0000000000001798 x27: ffff70000426cf6c [ 53.710247][ T5069] x26: ffff0000dcba2210 x25: ffff0000d1250000 x24: fffffffffffffff4 [ 53.711522][ T5069] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dcba2268 [ 53.712747][ T5069] x20: 1fffe0001b97444d x19: ffff0000ddf78000 x18: 0000000000000001 [ 53.713944][ T5069] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 53.715040][ T5069] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 53.716155][ T5069] x11: 0000000000000000 x10: 0000000000000000 x9 : 5675774d3749f700 [ 53.717333][ T5069] x8 : 5675774d3749f700 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.718516][ T5069] x5 : ffff8000213673f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 53.719677][ T5069] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 53.720863][ T5069] Call trace: [ 53.721321][ T5069] btrfs_quota_enable+0xff8/0x1674 [ 53.722124][ T5069] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 53.722971][ T5069] btrfs_ioctl+0x96c/0xa8c [ 53.723651][ T5069] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.724408][ T5069] invoke_syscall+0x98/0x2b0 [ 53.725045][ T5069] el0_svc_common+0x138/0x258 [ 53.725770][ T5069] do_el0_svc+0x58/0x13c [ 53.726376][ T5069] el0_svc+0x78/0x1d0 [ 53.727007][ T5069] el0t_64_sync_handler+0xcc/0xe4 [ 53.727758][ T5069] el0t_64_sync+0x1a0/0x1a4 [ 53.728502][ T5069] irq event stamp: 78802 [ 53.729156][ T5069] hardirqs last enabled at (78801): [] __up_console_sem+0xb4/0xfc [ 53.730478][ T5069] hardirqs last disabled at (78802): [] el1_dbg+0x24/0x80 [ 53.731762][ T5069] softirqs last enabled at (78782): [] handle_softirqs+0xa40/0xbe4 [ 53.733201][ T5069] softirqs last disabled at (78727): [] __irq_exit_rcu+0x240/0x43c [ 53.734578][ T5069] ---[ end trace 08f01cbbc25c5bed ]--- [ 53.736166][ T5069] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 53.737651][ T5069] BTRFS info (device loop0): forced readonly [ 53.920906][ T5090] loop0: detected capacity change from 0 to 32768 [ 53.923404][ T5090] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5090) [ 53.926602][ T5090] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 53.927998][ T5090] BTRFS info (device loop0): using free space tree [ 53.928913][ T5090] BTRFS info (device loop0): has skinny extents [ 53.943661][ T5090] BTRFS info (device loop0): enabling ssd optimizations [ 53.953041][ T5090] FAULT_INJECTION: forcing a failure. [ 53.953041][ T5090] name failslab, interval 1, probability 0, space 0, times 0 [ 53.954973][ T5090] CPU: 1 PID: 5090 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.956442][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 53.958008][ T5090] Call trace: [ 53.958494][ T5090] dump_backtrace+0x0/0x458 [ 53.959169][ T5090] show_stack+0x2c/0x3c [ 53.959726][ T5090] __dump_stack+0x30/0x40 [ 53.960341][ T5090] dump_stack_lvl+0xf4/0x15c [ 53.961047][ T5090] dump_stack+0x1c/0x5c [ 53.961656][ T5090] should_fail+0x3bc/0x514 [ 53.962327][ T5090] __should_failslab+0xbc/0x10c [ 53.963025][ T5090] should_failslab+0x10/0x28 [ 53.963730][ T5090] slab_pre_alloc_hook+0x64/0xe8 [ 53.964432][ T5090] kmem_cache_alloc_trace+0x98/0x3ec [ 53.965186][ T5090] btrfs_alloc_root+0x8c/0x97c [ 53.965892][ T5090] btrfs_create_tree+0x110/0x998 [ 53.966589][ T5090] btrfs_quota_enable+0x37c/0x1674 [ 53.967348][ T5090] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 53.968083][ T5090] btrfs_ioctl+0x96c/0xa8c [ 53.968715][ T5090] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.969435][ T5090] invoke_syscall+0x98/0x2b0 [ 53.970091][ T5090] el0_svc_common+0x138/0x258 [ 53.970763][ T5090] do_el0_svc+0x58/0x13c [ 53.971304][ T5090] el0_svc+0x78/0x1d0 [ 53.971868][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 53.972524][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 53.974788][ T5090] ------------[ cut here ]------------ [ 53.975760][ T5090] WARNING: CPU: 1 PID: 5090 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 53.977225][ T5090] Modules linked in: [ 53.977810][ T5090] CPU: 1 PID: 5090 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.979157][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 53.980798][ T5090] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.982030][ T5090] pc : btrfs_quota_enable+0xff8/0x1674 [ 53.982969][ T5090] lr : btrfs_quota_enable+0xff8/0x1674 [ 53.983819][ T5090] sp : ffff800021507ae0 [ 53.984428][ T5090] x29: ffff800021507c40 x28: 0000000000001798 x27: ffff7000042a0f6c [ 53.985688][ T5090] x26: ffff0000dcba2370 x25: ffff0000d0e66000 x24: fffffffffffffff4 [ 53.986949][ T5090] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dcba23c8 [ 53.988314][ T5090] x20: 1fffe0001b974479 x19: ffff0000cdc50000 x18: 0000000000000001 [ 53.989592][ T5090] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 53.990751][ T5090] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 53.991901][ T5090] x11: 0000000000000000 x10: 0000000000000000 x9 : 98cd532c5634d400 [ 53.993108][ T5090] x8 : 98cd532c5634d400 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.994328][ T5090] x5 : ffff8000215073f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 53.995547][ T5090] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 53.996753][ T5090] Call trace: [ 53.997253][ T5090] btrfs_quota_enable+0xff8/0x1674 [ 53.997989][ T5090] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 53.998745][ T5090] btrfs_ioctl+0x96c/0xa8c [ 53.999401][ T5090] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.000087][ T5090] invoke_syscall+0x98/0x2b0 [ 54.000726][ T5090] el0_svc_common+0x138/0x258 [ 54.001446][ T5090] do_el0_svc+0x58/0x13c [ 54.002034][ T5090] el0_svc+0x78/0x1d0 [ 54.002638][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 54.003442][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 54.004113][ T5090] irq event stamp: 78676 [ 54.004732][ T5090] hardirqs last enabled at (78675): [] __up_console_sem+0xb4/0xfc [ 54.006174][ T5090] hardirqs last disabled at (78676): [] el1_dbg+0x24/0x80 [ 54.007481][ T5090] softirqs last enabled at (78656): [] handle_softirqs+0xa40/0xbe4 [ 54.008926][ T5090] softirqs last disabled at (78643): [] __irq_exit_rcu+0x240/0x43c [ 54.010306][ T5090] ---[ end trace 08f01cbbc25c5bee ]--- [ 54.011327][ T5090] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 54.012713][ T5090] BTRFS info (device loop0): forced readonly [ 54.184726][ T5111] loop0: detected capacity change from 0 to 32768 [ 54.187169][ T5111] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5111) [ 54.190270][ T5111] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 54.192033][ T5111] BTRFS info (device loop0): using free space tree [ 54.193245][ T5111] BTRFS info (device loop0): has skinny extents [ 54.208840][ T5111] BTRFS info (device loop0): enabling ssd optimizations [ 54.212146][ T5111] FAULT_INJECTION: forcing a failure. [ 54.212146][ T5111] name failslab, interval 1, probability 0, space 0, times 0 [ 54.214138][ T5111] CPU: 0 PID: 5111 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.215472][ T5111] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 54.217104][ T5111] Call trace: [ 54.217560][ T5111] dump_backtrace+0x0/0x458 [ 54.218214][ T5111] show_stack+0x2c/0x3c [ 54.218813][ T5111] __dump_stack+0x30/0x40 [ 54.219434][ T5111] dump_stack_lvl+0xf4/0x15c [ 54.220144][ T5111] dump_stack+0x1c/0x5c [ 54.220777][ T5111] should_fail+0x3bc/0x514 [ 54.221469][ T5111] __should_failslab+0xbc/0x10c [ 54.222248][ T5111] should_failslab+0x10/0x28 [ 54.222940][ T5111] slab_pre_alloc_hook+0x64/0xe8 [ 54.223712][ T5111] kmem_cache_alloc+0x94/0x3d4 [ 54.224406][ T5111] start_transaction+0x4d0/0x13ec [ 54.225157][ T5111] btrfs_start_transaction+0x34/0x44 [ 54.225968][ T5111] btrfs_quota_enable+0x1d0/0x1674 [ 54.226736][ T5111] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 54.227545][ T5111] btrfs_ioctl+0x96c/0xa8c [ 54.228231][ T5111] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.228930][ T5111] invoke_syscall+0x98/0x2b0 [ 54.229622][ T5111] el0_svc_common+0x138/0x258 [ 54.230300][ T5111] do_el0_svc+0x58/0x13c [ 54.230937][ T5111] el0_svc+0x78/0x1d0 [ 54.231477][ T5111] el0t_64_sync_handler+0xcc/0xe4 [ 54.232217][ T5111] el0t_64_sync+0x1a0/0x1a4 [ 54.407751][ T5132] loop0: detected capacity change from 0 to 32768 [ 54.410056][ T5132] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5132) [ 54.413527][ T5132] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 54.415095][ T5132] BTRFS info (device loop0): using free space tree [ 54.416110][ T5132] BTRFS info (device loop0): has skinny extents [ 54.425777][ T5132] BTRFS info (device loop0): enabling ssd optimizations [ 54.429737][ T5132] FAULT_INJECTION: forcing a failure. [ 54.429737][ T5132] name failslab, interval 1, probability 0, space 0, times 0 [ 54.431927][ T5132] CPU: 1 PID: 5132 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.433403][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 54.434968][ T5132] Call trace: [ 54.435491][ T5132] dump_backtrace+0x0/0x458 [ 54.436171][ T5132] show_stack+0x2c/0x3c [ 54.436747][ T5132] __dump_stack+0x30/0x40 [ 54.437374][ T5132] dump_stack_lvl+0xf4/0x15c [ 54.438010][ T5132] dump_stack+0x1c/0x5c [ 54.438576][ T5132] should_fail+0x3bc/0x514 [ 54.439254][ T5132] __should_failslab+0xbc/0x10c [ 54.439982][ T5132] should_failslab+0x10/0x28 [ 54.440672][ T5132] slab_pre_alloc_hook+0x64/0xe8 [ 54.441374][ T5132] kmem_cache_alloc_trace+0x98/0x3ec [ 54.442226][ T5132] btrfs_alloc_root+0x8c/0x97c [ 54.442941][ T5132] btrfs_create_tree+0x110/0x998 [ 54.443646][ T5132] btrfs_quota_enable+0x37c/0x1674 [ 54.444426][ T5132] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 54.445221][ T5132] btrfs_ioctl+0x96c/0xa8c [ 54.445822][ T5132] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.446628][ T5132] invoke_syscall+0x98/0x2b0 [ 54.447321][ T5132] el0_svc_common+0x138/0x258 [ 54.448053][ T5132] do_el0_svc+0x58/0x13c [ 54.448669][ T5132] el0_svc+0x78/0x1d0 [ 54.449230][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 54.450045][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 54.451118][ T5132] ------------[ cut here ]------------ [ 54.451965][ T5132] WARNING: CPU: 1 PID: 5132 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 54.453355][ T5132] Modules linked in: [ 54.453992][ T5132] CPU: 1 PID: 5132 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.455308][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 54.456660][ T5132] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.457868][ T5132] pc : btrfs_quota_enable+0xff8/0x1674 [ 54.458651][ T5132] lr : btrfs_quota_enable+0xff8/0x1674 [ 54.459468][ T5132] sp : ffff800021757ae0 [ 54.460082][ T5132] x29: ffff800021757c40 x28: 0000000000001798 x27: ffff7000042eaf6c [ 54.461304][ T5132] x26: ffff0000dcba24d0 x25: ffff0000dbdf8000 x24: fffffffffffffff4 [ 54.462538][ T5132] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dcba2528 [ 54.463916][ T5132] x20: 1fffe0001b9744a5 x19: ffff0000d2494000 x18: 0000000000000001 [ 54.465168][ T5132] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 54.466481][ T5132] x14: 0000000000000001 x13: 1ffff000042eae7c x12: 0000000000ff0100 [ 54.467641][ T5132] x11: 0000000000000000 x10: 0000000000000000 x9 : b532ff10835aec00 [ 54.468864][ T5132] x8 : b532ff10835aec00 x7 : 0000000000000001 x6 : 0000000000000001 [ 54.470095][ T5132] x5 : ffff8000217573f8 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 54.471339][ T5132] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 54.472685][ T5132] Call trace: [ 54.473251][ T5132] btrfs_quota_enable+0xff8/0x1674 [ 54.474082][ T5132] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 54.474933][ T5132] btrfs_ioctl+0x96c/0xa8c [ 54.475590][ T5132] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.476332][ T5132] invoke_syscall+0x98/0x2b0 [ 54.477054][ T5132] el0_svc_common+0x138/0x258 [ 54.477767][ T5132] do_el0_svc+0x58/0x13c [ 54.478365][ T5132] el0_svc+0x78/0x1d0 [ 54.478931][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 54.479684][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 54.480314][ T5132] irq event stamp: 78864 [ 54.480929][ T5132] hardirqs last enabled at (78863): [] __up_console_sem+0xb4/0xfc [ 54.482355][ T5132] hardirqs last disabled at (78864): [] el1_dbg+0x24/0x80 [ 54.483707][ T5132] softirqs last enabled at (78844): [] handle_softirqs+0xa40/0xbe4 [ 54.485071][ T5132] softirqs last disabled at (78831): [] __irq_exit_rcu+0x240/0x43c [ 54.486518][ T5132] ---[ end trace 08f01cbbc25c5bef ]--- [ 54.487664][ T5132] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 54.489253][ T5132] BTRFS info (device loop0): forced readonly [ 54.666361][ T5153] loop0: detected capacity change from 0 to 32768 [ 54.668760][ T5153] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5153) [ 54.673478][ T5153] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 54.675057][ T5153] BTRFS info (device loop0): using free space tree [ 54.676108][ T5153] BTRFS info (device loop0): has skinny extents [ 54.686615][ T5153] BTRFS info (device loop0): enabling ssd optimizations [ 54.689844][ T5153] FAULT_INJECTION: forcing a failure. [ 54.689844][ T5153] name failslab, interval 1, probability 0, space 0, times 0 [ 54.692123][ T5153] CPU: 0 PID: 5153 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.693485][ T5153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 54.695081][ T5153] Call trace: [ 54.695584][ T5153] dump_backtrace+0x0/0x458 [ 54.696295][ T5153] show_stack+0x2c/0x3c [ 54.696963][ T5153] __dump_stack+0x30/0x40 [ 54.697661][ T5153] dump_stack_lvl+0xf4/0x15c [ 54.698395][ T5153] dump_stack+0x1c/0x5c [ 54.699030][ T5153] should_fail+0x3bc/0x514 [ 54.699729][ T5153] __should_failslab+0xbc/0x10c [ 54.700467][ T5153] should_failslab+0x10/0x28 [ 54.701108][ T5153] slab_pre_alloc_hook+0x64/0xe8 [ 54.701892][ T5153] kmem_cache_alloc_trace+0x98/0x3ec [ 54.702708][ T5153] btrfs_alloc_root+0x8c/0x97c [ 54.703417][ T5153] btrfs_create_tree+0x110/0x998 [ 54.704183][ T5153] btrfs_quota_enable+0x37c/0x1674 [ 54.705040][ T5153] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 54.705870][ T5153] btrfs_ioctl+0x96c/0xa8c [ 54.706558][ T5153] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.707374][ T5153] invoke_syscall+0x98/0x2b0 [ 54.708066][ T5153] el0_svc_common+0x138/0x258 [ 54.708798][ T5153] do_el0_svc+0x58/0x13c [ 54.709473][ T5153] el0_svc+0x78/0x1d0 [ 54.710119][ T5153] el0t_64_sync_handler+0xcc/0xe4 [ 54.710903][ T5153] el0t_64_sync+0x1a0/0x1a4 [ 54.712454][ T5153] ------------[ cut here ]------------ [ 54.713352][ T5153] WARNING: CPU: 0 PID: 5153 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 54.714967][ T5153] Modules linked in: [ 54.715593][ T5153] CPU: 0 PID: 5153 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.717083][ T5153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 54.718600][ T5153] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.719715][ T5153] pc : btrfs_quota_enable+0xff8/0x1674 [ 54.720443][ T5153] lr : btrfs_quota_enable+0xff8/0x1674 [ 54.721162][ T5153] sp : ffff800021757ae0 [ 54.721792][ T5153] x29: ffff800021757c40 x28: 0000000000001798 x27: ffff7000042eaf6c [ 54.722962][ T5153] x26: ffff0000dc9d3630 x25: ffff0000dbc8e000 x24: fffffffffffffff4 [ 54.724122][ T5153] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dc9d3688 [ 54.725373][ T5153] x20: 1fffe0001b93a6d1 x19: ffff0000cd7c0000 x18: 0000000000000001 [ 54.726495][ T5153] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 54.727706][ T5153] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 54.728827][ T5153] x11: 0000000000000000 x10: 0000000000000000 x9 : cb9ce0cdaeaa0000 [ 54.730089][ T5153] x8 : cb9ce0cdaeaa0000 x7 : 0000000000000001 x6 : 0000000000000001 [ 54.731280][ T5153] x5 : ffff8000217573f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 54.732397][ T5153] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 54.733661][ T5153] Call trace: [ 54.734111][ T5153] btrfs_quota_enable+0xff8/0x1674 [ 54.734830][ T5153] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 54.735656][ T5153] btrfs_ioctl+0x96c/0xa8c [ 54.736332][ T5153] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.737106][ T5153] invoke_syscall+0x98/0x2b0 [ 54.737863][ T5153] el0_svc_common+0x138/0x258 [ 54.738534][ T5153] do_el0_svc+0x58/0x13c [ 54.739184][ T5153] el0_svc+0x78/0x1d0 [ 54.739814][ T5153] el0t_64_sync_handler+0xcc/0xe4 [ 54.740585][ T5153] el0t_64_sync+0x1a0/0x1a4 [ 54.741234][ T5153] irq event stamp: 79118 [ 54.741832][ T5153] hardirqs last enabled at (79117): [] __up_console_sem+0xb4/0xfc [ 54.743398][ T5153] hardirqs last disabled at (79118): [] el1_dbg+0x24/0x80 [ 54.744770][ T5153] softirqs last enabled at (79098): [] handle_softirqs+0xa40/0xbe4 [ 54.746380][ T5153] softirqs last disabled at (79059): [] __irq_exit_rcu+0x240/0x43c [ 54.747830][ T5153] ---[ end trace 08f01cbbc25c5bf0 ]--- [ 54.749585][ T5153] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 54.752032][ T5153] BTRFS info (device loop0): forced readonly [ 54.821021][ T13] Bluetooth: hci0: command 0x0419 tx timeout [ 54.922041][ T5174] loop0: detected capacity change from 0 to 32768 [ 54.924231][ T5174] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5174) [ 54.927332][ T5174] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 54.928887][ T5174] BTRFS info (device loop0): using free space tree [ 54.929860][ T5174] BTRFS info (device loop0): has skinny extents [ 54.941324][ T5174] BTRFS info (device loop0): enabling ssd optimizations [ 54.944856][ T5174] FAULT_INJECTION: forcing a failure. [ 54.944856][ T5174] name failslab, interval 1, probability 0, space 0, times 0 [ 54.946882][ T5174] CPU: 1 PID: 5174 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.948299][ T5174] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 54.949845][ T5174] Call trace: [ 54.950318][ T5174] dump_backtrace+0x0/0x458 [ 54.951002][ T5174] show_stack+0x2c/0x3c [ 54.951694][ T5174] __dump_stack+0x30/0x40 [ 54.952349][ T5174] dump_stack_lvl+0xf4/0x15c [ 54.953081][ T5174] dump_stack+0x1c/0x5c [ 54.953744][ T5174] should_fail+0x3bc/0x514 [ 54.954418][ T5174] __should_failslab+0xbc/0x10c [ 54.955136][ T5174] should_failslab+0x10/0x28 [ 54.955802][ T5174] slab_pre_alloc_hook+0x64/0xe8 [ 54.956489][ T5174] kmem_cache_alloc_trace+0x98/0x3ec [ 54.957262][ T5174] btrfs_alloc_root+0x8c/0x97c [ 54.957979][ T5174] btrfs_create_tree+0x110/0x998 [ 54.958755][ T5174] btrfs_quota_enable+0x37c/0x1674 [ 54.959557][ T5174] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 54.960450][ T5174] btrfs_ioctl+0x96c/0xa8c [ 54.961090][ T5174] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.961881][ T5174] invoke_syscall+0x98/0x2b0 [ 54.962608][ T5174] el0_svc_common+0x138/0x258 [ 54.963341][ T5174] do_el0_svc+0x58/0x13c [ 54.963946][ T5174] el0_svc+0x78/0x1d0 [ 54.964512][ T5174] el0t_64_sync_handler+0xcc/0xe4 [ 54.965367][ T5174] el0t_64_sync+0x1a0/0x1a4 [ 54.966251][ T5174] ------------[ cut here ]------------ [ 54.967119][ T5174] WARNING: CPU: 1 PID: 5174 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 54.968550][ T5174] Modules linked in: [ 54.969090][ T5174] CPU: 1 PID: 5174 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.970433][ T5174] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 54.971939][ T5174] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.973111][ T5174] pc : btrfs_quota_enable+0xff8/0x1674 [ 54.973910][ T5174] lr : btrfs_quota_enable+0xff8/0x1674 [ 54.974682][ T5174] sp : ffff800021747ae0 [ 54.975336][ T5174] x29: ffff800021747c40 x28: 0000000000001798 x27: ffff7000042e8f6c [ 54.976452][ T5174] x26: ffff0000dcba2630 x25: ffff0000dd5b8000 x24: fffffffffffffff4 [ 54.977609][ T5174] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dcba2688 [ 54.978805][ T5174] x20: 1fffe0001b9744d1 x19: ffff0000cf5dc000 x18: 0000000000000001 [ 54.979971][ T5174] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 54.981197][ T5174] x14: 0000000000000001 x13: 1ffff000042e8e7c x12: 0000000000ff0100 [ 54.982433][ T5174] x11: 0000000000000000 x10: 0000000000000000 x9 : 2d1971426e21da00 [ 54.983627][ T5174] x8 : 2d1971426e21da00 x7 : 0000000000000001 x6 : 0000000000000001 [ 54.984805][ T5174] x5 : ffff8000217473f8 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 54.985988][ T5174] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 54.987278][ T5174] Call trace: [ 54.987841][ T5174] btrfs_quota_enable+0xff8/0x1674 [ 54.988667][ T5174] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 54.989414][ T5174] btrfs_ioctl+0x96c/0xa8c [ 54.990078][ T5174] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.990862][ T5174] invoke_syscall+0x98/0x2b0 [ 54.991532][ T5174] el0_svc_common+0x138/0x258 [ 54.992177][ T5174] do_el0_svc+0x58/0x13c [ 54.992755][ T5174] el0_svc+0x78/0x1d0 [ 54.993319][ T5174] el0t_64_sync_handler+0xcc/0xe4 [ 54.994036][ T5174] el0t_64_sync+0x1a0/0x1a4 [ 54.994691][ T5174] irq event stamp: 79172 [ 54.995321][ T5174] hardirqs last enabled at (79171): [] __up_console_sem+0xb4/0xfc [ 54.996659][ T5174] hardirqs last disabled at (79172): [] el1_dbg+0x24/0x80 [ 54.997943][ T5174] softirqs last enabled at (79152): [] handle_softirqs+0xa40/0xbe4 [ 54.999353][ T5174] softirqs last disabled at (79093): [] __irq_exit_rcu+0x240/0x43c [ 55.000733][ T5174] ---[ end trace 08f01cbbc25c5bf1 ]--- [ 55.001672][ T5174] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 55.003317][ T5174] BTRFS info (device loop0): forced readonly [ 55.171910][ T5195] loop0: detected capacity change from 0 to 32768 [ 55.174211][ T5195] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5195) [ 55.178067][ T5195] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 55.179659][ T5195] BTRFS info (device loop0): using free space tree [ 55.180620][ T5195] BTRFS info (device loop0): has skinny extents [ 55.189622][ T5195] BTRFS info (device loop0): enabling ssd optimizations [ 55.199056][ T5195] FAULT_INJECTION: forcing a failure. [ 55.199056][ T5195] name failslab, interval 1, probability 0, space 0, times 0 [ 55.201403][ T5195] CPU: 0 PID: 5195 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.202869][ T5195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 55.204507][ T5195] Call trace: [ 55.205018][ T5195] dump_backtrace+0x0/0x458 [ 55.205743][ T5195] show_stack+0x2c/0x3c [ 55.206448][ T5195] __dump_stack+0x30/0x40 [ 55.207080][ T5195] dump_stack_lvl+0xf4/0x15c [ 55.207809][ T5195] dump_stack+0x1c/0x5c [ 55.208462][ T5195] should_fail+0x3bc/0x514 [ 55.209187][ T5195] __should_failslab+0xbc/0x10c [ 55.209886][ T5195] should_failslab+0x10/0x28 [ 55.210556][ T5195] slab_pre_alloc_hook+0x64/0xe8 [ 55.211302][ T5195] kmem_cache_alloc_trace+0x98/0x3ec [ 55.212110][ T5195] btrfs_alloc_root+0x8c/0x97c [ 55.212864][ T5195] btrfs_create_tree+0x110/0x998 [ 55.213568][ T5195] btrfs_quota_enable+0x37c/0x1674 [ 55.214402][ T5195] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 55.215156][ T5195] btrfs_ioctl+0x96c/0xa8c [ 55.215785][ T5195] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.216504][ T5195] invoke_syscall+0x98/0x2b0 [ 55.217139][ T5195] el0_svc_common+0x138/0x258 [ 55.217829][ T5195] do_el0_svc+0x58/0x13c [ 55.218462][ T5195] el0_svc+0x78/0x1d0 [ 55.219014][ T5195] el0t_64_sync_handler+0xcc/0xe4 [ 55.219766][ T5195] el0t_64_sync+0x1a0/0x1a4 [ 55.222000][ T5195] ------------[ cut here ]------------ [ 55.222970][ T5195] WARNING: CPU: 0 PID: 5195 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 55.224599][ T5195] Modules linked in: [ 55.225182][ T5195] CPU: 0 PID: 5195 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.226616][ T5195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 55.228154][ T5195] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.229366][ T5195] pc : btrfs_quota_enable+0xff8/0x1674 [ 55.230215][ T5195] lr : btrfs_quota_enable+0xff8/0x1674 [ 55.231037][ T5195] sp : ffff800021967ae0 [ 55.231667][ T5195] x29: ffff800021967c40 x28: 0000000000001798 x27: ffff70000432cf6c [ 55.232867][ T5195] x26: ffff0000dc9d3840 x25: ffff0000d78c4000 x24: fffffffffffffff4 [ 55.234033][ T5195] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dc9d3898 [ 55.235197][ T5195] x20: 1fffe0001b93a713 x19: ffff0000cf5dc000 x18: 0000000000000001 [ 55.236392][ T5195] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 55.237691][ T5195] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 55.238877][ T5195] x11: 0000000000000000 x10: 0000000000000000 x9 : 8505aa0a45a1e200 [ 55.240064][ T5195] x8 : 8505aa0a45a1e200 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.241276][ T5195] x5 : ffff8000219673f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 55.242557][ T5195] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.243767][ T5195] Call trace: [ 55.244234][ T5195] btrfs_quota_enable+0xff8/0x1674 [ 55.244997][ T5195] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 55.245809][ T5195] btrfs_ioctl+0x96c/0xa8c [ 55.246476][ T5195] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.247196][ T5195] invoke_syscall+0x98/0x2b0 [ 55.247883][ T5195] el0_svc_common+0x138/0x258 [ 55.248573][ T5195] do_el0_svc+0x58/0x13c [ 55.249202][ T5195] el0_svc+0x78/0x1d0 [ 55.249809][ T5195] el0t_64_sync_handler+0xcc/0xe4 [ 55.250606][ T5195] el0t_64_sync+0x1a0/0x1a4 [ 55.251287][ T5195] irq event stamp: 79094 [ 55.251906][ T5195] hardirqs last enabled at (79093): [] __up_console_sem+0xb4/0xfc [ 55.253343][ T5195] hardirqs last disabled at (79094): [] el1_dbg+0x24/0x80 [ 55.254681][ T5195] softirqs last enabled at (79074): [] handle_softirqs+0xa40/0xbe4 [ 55.256133][ T5195] softirqs last disabled at (79059): [] __irq_exit_rcu+0x240/0x43c [ 55.257486][ T5195] ---[ end trace 08f01cbbc25c5bf2 ]--- [ 55.260286][ T5195] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 55.261728][ T5195] BTRFS info (device loop0): forced readonly [ 55.449547][ T5216] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5216) [ 55.453527][ T5216] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 55.455171][ T5216] BTRFS info (device loop0): using free space tree [ 55.456309][ T5216] BTRFS info (device loop0): has skinny extents [ 55.468053][ T5216] BTRFS info (device loop0): enabling ssd optimizations [ 55.471838][ T5216] FAULT_INJECTION: forcing a failure. [ 55.471838][ T5216] name failslab, interval 1, probability 0, space 0, times 0 [ 55.473942][ T5216] CPU: 0 PID: 5216 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.475275][ T5216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 55.476802][ T5216] Call trace: [ 55.477309][ T5216] dump_backtrace+0x0/0x458 [ 55.478009][ T5216] show_stack+0x2c/0x3c [ 55.478571][ T5216] __dump_stack+0x30/0x40 [ 55.479207][ T5216] dump_stack_lvl+0xf4/0x15c [ 55.479928][ T5216] dump_stack+0x1c/0x5c [ 55.480507][ T5216] should_fail+0x3bc/0x514 [ 55.481148][ T5216] __should_failslab+0xbc/0x10c [ 55.481903][ T5216] should_failslab+0x10/0x28 [ 55.482660][ T5216] slab_pre_alloc_hook+0x64/0xe8 [ 55.483360][ T5216] kmem_cache_alloc_trace+0x98/0x3ec [ 55.484126][ T5216] btrfs_alloc_root+0x8c/0x97c [ 55.484825][ T5216] btrfs_create_tree+0x110/0x998 [ 55.485537][ T5216] btrfs_quota_enable+0x37c/0x1674 [ 55.486213][ T5216] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 55.486936][ T5216] btrfs_ioctl+0x96c/0xa8c [ 55.487635][ T5216] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.488360][ T5216] invoke_syscall+0x98/0x2b0 [ 55.489022][ T5216] el0_svc_common+0x138/0x258 [ 55.489681][ T5216] do_el0_svc+0x58/0x13c [ 55.490360][ T5216] el0_svc+0x78/0x1d0 [ 55.490975][ T5216] el0t_64_sync_handler+0xcc/0xe4 [ 55.491759][ T5216] el0t_64_sync+0x1a0/0x1a4 [ 55.493368][ T5216] ------------[ cut here ]------------ [ 55.494266][ T5216] WARNING: CPU: 0 PID: 5216 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 55.495903][ T5216] Modules linked in: [ 55.496475][ T5216] CPU: 0 PID: 5216 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.498018][ T5216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 55.499510][ T5216] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.500675][ T5216] pc : btrfs_quota_enable+0xff8/0x1674 [ 55.501528][ T5216] lr : btrfs_quota_enable+0xff8/0x1674 [ 55.502380][ T5216] sp : ffff800021b87ae0 [ 55.503003][ T5216] x29: ffff800021b87c40 x28: 0000000000001798 x27: ffff700004370f6c [ 55.504256][ T5216] x26: ffff0000dc9d3f20 x25: ffff0000e52d0000 x24: fffffffffffffff4 [ 55.505479][ T5216] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dc9d3f78 [ 55.506686][ T5216] x20: 1fffe0001b93a7ef x19: ffff0000cf5dc000 x18: 0000000000000001 [ 55.507910][ T5216] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 55.509084][ T5216] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 55.510327][ T5216] x11: 0000000000000000 x10: 0000000000000000 x9 : 2850052d5755de00 [ 55.511525][ T5216] x8 : 2850052d5755de00 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.512770][ T5216] x5 : ffff800021b873f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 55.513884][ T5216] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.515093][ T5216] Call trace: [ 55.515574][ T5216] btrfs_quota_enable+0xff8/0x1674 [ 55.516340][ T5216] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 55.517166][ T5216] btrfs_ioctl+0x96c/0xa8c [ 55.517808][ T5216] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.518580][ T5216] invoke_syscall+0x98/0x2b0 [ 55.519231][ T5216] el0_svc_common+0x138/0x258 [ 55.519898][ T5216] do_el0_svc+0x58/0x13c [ 55.520443][ T5216] el0_svc+0x78/0x1d0 [ 55.521018][ T5216] el0t_64_sync_handler+0xcc/0xe4 [ 55.521719][ T5216] el0t_64_sync+0x1a0/0x1a4 [ 55.522367][ T5216] irq event stamp: 78884 [ 55.522963][ T5216] hardirqs last enabled at (78883): [] __up_console_sem+0xb4/0xfc [ 55.524297][ T5216] hardirqs last disabled at (78884): [] el1_dbg+0x24/0x80 [ 55.525666][ T5216] softirqs last enabled at (78864): [] handle_softirqs+0xa40/0xbe4 [ 55.527093][ T5216] softirqs last disabled at (78831): [] __irq_exit_rcu+0x240/0x43c [ 55.528547][ T5216] ---[ end trace 08f01cbbc25c5bf3 ]--- [ 55.529598][ T5216] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 55.531050][ T5216] BTRFS info (device loop0): forced readonly [ 55.720143][ T5237] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5237) [ 55.723644][ T5237] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 55.725230][ T5237] BTRFS info (device loop0): using free space tree [ 55.726176][ T5237] BTRFS info (device loop0): has skinny extents [ 55.733872][ T5237] BTRFS info (device loop0): enabling ssd optimizations [ 55.737010][ T5237] FAULT_INJECTION: forcing a failure. [ 55.737010][ T5237] name failslab, interval 1, probability 0, space 0, times 0 [ 55.738841][ T5237] CPU: 0 PID: 5237 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.740159][ T5237] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 55.741605][ T5237] Call trace: [ 55.742066][ T5237] dump_backtrace+0x0/0x458 [ 55.742728][ T5237] show_stack+0x2c/0x3c [ 55.743312][ T5237] __dump_stack+0x30/0x40 [ 55.743963][ T5237] dump_stack_lvl+0xf4/0x15c [ 55.744635][ T5237] dump_stack+0x1c/0x5c [ 55.745326][ T5237] should_fail+0x3bc/0x514 [ 55.745953][ T5237] __should_failslab+0xbc/0x10c [ 55.746656][ T5237] should_failslab+0x10/0x28 [ 55.747296][ T5237] slab_pre_alloc_hook+0x64/0xe8 [ 55.748006][ T5237] kmem_cache_alloc_trace+0x98/0x3ec [ 55.748746][ T5237] btrfs_alloc_root+0x8c/0x97c [ 55.749414][ T5237] btrfs_create_tree+0x110/0x998 [ 55.750129][ T5237] btrfs_quota_enable+0x37c/0x1674 [ 55.750885][ T5237] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 55.751691][ T5237] btrfs_ioctl+0x96c/0xa8c [ 55.752361][ T5237] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.753109][ T5237] invoke_syscall+0x98/0x2b0 [ 55.753828][ T5237] el0_svc_common+0x138/0x258 [ 55.754536][ T5237] do_el0_svc+0x58/0x13c [ 55.755188][ T5237] el0_svc+0x78/0x1d0 [ 55.755790][ T5237] el0t_64_sync_handler+0xcc/0xe4 [ 55.756495][ T5237] el0t_64_sync+0x1a0/0x1a4 [ 55.757277][ T5237] ------------[ cut here ]------------ [ 55.758715][ T5237] WARNING: CPU: 0 PID: 5237 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 55.760147][ T5237] Modules linked in: [ 55.760737][ T5237] CPU: 0 PID: 5237 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.762025][ T5237] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 55.763429][ T5237] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.764579][ T5237] pc : btrfs_quota_enable+0xff8/0x1674 [ 55.765465][ T5237] lr : btrfs_quota_enable+0xff8/0x1674 [ 55.766252][ T5237] sp : ffff800021bb7ae0 [ 55.766866][ T5237] x29: ffff800021bb7c40 x28: 0000000000001798 x27: ffff700004376f6c [ 55.768059][ T5237] x26: ffff0000dc9d38f0 x25: ffff0000e551a000 x24: fffffffffffffff4 [ 55.769261][ T5237] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dc9d3948 [ 55.770425][ T5237] x20: 1fffe0001b93a729 x19: ffff0000cf5dc000 x18: 0000000000000001 [ 55.771574][ T5237] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 55.772786][ T5237] x14: 0000000000000001 x13: 1fffe000341f1ed7 x12: 0000000000ff0100 [ 55.774013][ T5237] x11: 0000000000000000 x10: 0000000000000000 x9 : 6df45d0e230c5000 [ 55.775183][ T5237] x8 : 6df45d0e230c5000 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.776380][ T5237] x5 : ffff800021bb73f8 x4 : ffff80001436f3e0 x3 : ffff80000a75d4cc [ 55.777573][ T5237] x2 : ffff0001a0f83d50 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.778741][ T5237] Call trace: [ 55.779230][ T5237] btrfs_quota_enable+0xff8/0x1674 [ 55.780008][ T5237] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 55.780788][ T5237] btrfs_ioctl+0x96c/0xa8c [ 55.781406][ T5237] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.782180][ T5237] invoke_syscall+0x98/0x2b0 [ 55.782860][ T5237] el0_svc_common+0x138/0x258 [ 55.783535][ T5237] do_el0_svc+0x58/0x13c [ 55.784138][ T5237] el0_svc+0x78/0x1d0 [ 55.784721][ T5237] el0t_64_sync_handler+0xcc/0xe4 [ 55.785481][ T5237] el0t_64_sync+0x1a0/0x1a4 [ 55.786134][ T5237] irq event stamp: 78590 [ 55.786764][ T5237] hardirqs last enabled at (78589): [] __up_console_sem+0xb4/0xfc [ 55.788212][ T5237] hardirqs last disabled at (78590): [] el1_dbg+0x24/0x80 [ 55.789464][ T5237] softirqs last enabled at (78564): [] handle_softirqs+0xa40/0xbe4 [ 55.790868][ T5237] softirqs last disabled at (78547): [] __irq_exit_rcu+0x240/0x43c [ 55.792291][ T5237] ---[ end trace 08f01cbbc25c5bf4 ]--- [ 55.793926][ T5237] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 55.795513][ T5237] BTRFS info (device loop0): forced readonly [ 55.999131][ T5258] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5258) [ 56.004272][ T5258] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 56.005814][ T5258] BTRFS info (device loop0): using free space tree [ 56.006776][ T5258] BTRFS info (device loop0): has skinny extents [ 56.017121][ T5258] BTRFS info (device loop0): enabling ssd optimizations [ 56.020559][ T5258] FAULT_INJECTION: forcing a failure. [ 56.020559][ T5258] name failslab, interval 1, probability 0, space 0, times 0 [ 56.023501][ T5258] CPU: 1 PID: 5258 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.024778][ T5258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 56.026260][ T5258] Call trace: [ 56.026740][ T5258] dump_backtrace+0x0/0x458 [ 56.027388][ T5258] show_stack+0x2c/0x3c [ 56.027973][ T5258] __dump_stack+0x30/0x40 [ 56.028559][ T5258] dump_stack_lvl+0xf4/0x15c [ 56.029222][ T5258] dump_stack+0x1c/0x5c [ 56.029814][ T5258] should_fail+0x3bc/0x514 [ 56.030465][ T5258] __should_failslab+0xbc/0x10c [ 56.031204][ T5258] should_failslab+0x10/0x28 [ 56.031804][ T5258] slab_pre_alloc_hook+0x64/0xe8 [ 56.032536][ T5258] kmem_cache_alloc_trace+0x98/0x3ec [ 56.033267][ T5258] btrfs_alloc_root+0x8c/0x97c [ 56.033975][ T5258] btrfs_create_tree+0x110/0x998 [ 56.034672][ T5258] btrfs_quota_enable+0x37c/0x1674 [ 56.035400][ T5258] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 56.036195][ T5258] btrfs_ioctl+0x96c/0xa8c [ 56.036880][ T5258] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.037636][ T5258] invoke_syscall+0x98/0x2b0 [ 56.038351][ T5258] el0_svc_common+0x138/0x258 [ 56.039052][ T5258] do_el0_svc+0x58/0x13c [ 56.039682][ T5258] el0_svc+0x78/0x1d0 [ 56.040285][ T5258] el0t_64_sync_handler+0xcc/0xe4 [ 56.041048][ T5258] el0t_64_sync+0x1a0/0x1a4 [ 56.042553][ T5258] ------------[ cut here ]------------ [ 56.043412][ T5258] WARNING: CPU: 1 PID: 5258 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 56.044800][ T5258] Modules linked in: [ 56.045388][ T5258] CPU: 1 PID: 5258 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.046772][ T5258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 56.048299][ T5258] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.049465][ T5258] pc : btrfs_quota_enable+0xff8/0x1674 [ 56.050419][ T5258] lr : btrfs_quota_enable+0xff8/0x1674 [ 56.051284][ T5258] sp : ffff800021d17ae0 [ 56.051907][ T5258] x29: ffff800021d17c40 x28: 0000000000001798 x27: ffff7000043a2f6c [ 56.053120][ T5258] x26: ffff0000dcba2840 x25: ffff0000d8238000 x24: fffffffffffffff4 [ 56.054357][ T5258] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dcba2898 [ 56.055617][ T5258] x20: 1fffe0001b974513 x19: ffff0000cf5dc000 x18: 0000000000000001 [ 56.056935][ T5258] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 56.058257][ T5258] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 56.059573][ T5258] x11: 0000000000000000 x10: 0000000000000000 x9 : 9c8eb515d7409600 [ 56.060886][ T5258] x8 : 9c8eb515d7409600 x7 : 0000000000000001 x6 : 0000000000000001 [ 56.062114][ T5258] x5 : ffff800021d173f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 56.063201][ T5258] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 56.064521][ T5258] Call trace: [ 56.065000][ T5258] btrfs_quota_enable+0xff8/0x1674 [ 56.065757][ T5258] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 56.066559][ T5258] btrfs_ioctl+0x96c/0xa8c [ 56.067185][ T5258] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.067981][ T5258] invoke_syscall+0x98/0x2b0 [ 56.068694][ T5258] el0_svc_common+0x138/0x258 [ 56.069405][ T5258] do_el0_svc+0x58/0x13c [ 56.070061][ T5258] el0_svc+0x78/0x1d0 [ 56.070709][ T5258] el0t_64_sync_handler+0xcc/0xe4 [ 56.071457][ T5258] el0t_64_sync+0x1a0/0x1a4 [ 56.072120][ T5258] irq event stamp: 78844 [ 56.072800][ T5258] hardirqs last enabled at (78843): [] __up_console_sem+0xb4/0xfc [ 56.074267][ T5258] hardirqs last disabled at (78844): [] el1_dbg+0x24/0x80 [ 56.075582][ T5258] softirqs last enabled at (78824): [] handle_softirqs+0xa40/0xbe4 [ 56.076973][ T5258] softirqs last disabled at (78789): [] __irq_exit_rcu+0x240/0x43c [ 56.078383][ T5258] ---[ end trace 08f01cbbc25c5bf5 ]--- [ 56.079927][ T5258] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 56.081302][ T5258] BTRFS info (device loop0): forced readonly [ 56.258735][ T5279] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5279) [ 56.262763][ T5279] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 56.264293][ T5279] BTRFS info (device loop0): using free space tree [ 56.265495][ T5279] BTRFS info (device loop0): has skinny extents [ 56.276228][ T5279] BTRFS info (device loop0): enabling ssd optimizations [ 56.279411][ T5279] FAULT_INJECTION: forcing a failure. [ 56.279411][ T5279] name failslab, interval 1, probability 0, space 0, times 0 [ 56.281833][ T5279] CPU: 1 PID: 5279 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.283274][ T5279] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 56.284846][ T5279] Call trace: [ 56.285342][ T5279] dump_backtrace+0x0/0x458 [ 56.286052][ T5279] show_stack+0x2c/0x3c [ 56.286717][ T5279] __dump_stack+0x30/0x40 [ 56.287362][ T5279] dump_stack_lvl+0xf4/0x15c [ 56.288074][ T5279] dump_stack+0x1c/0x5c [ 56.288709][ T5279] should_fail+0x3bc/0x514 [ 56.289394][ T5279] __should_failslab+0xbc/0x10c [ 56.290149][ T5279] should_failslab+0x10/0x28 [ 56.290881][ T5279] slab_pre_alloc_hook+0x64/0xe8 [ 56.291618][ T5279] kmem_cache_alloc_trace+0x98/0x3ec [ 56.292434][ T5279] btrfs_alloc_root+0x8c/0x97c [ 56.293162][ T5279] btrfs_create_tree+0x110/0x998 [ 56.293957][ T5279] btrfs_quota_enable+0x37c/0x1674 [ 56.294735][ T5279] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 56.295487][ T5279] btrfs_ioctl+0x96c/0xa8c [ 56.296142][ T5279] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.296832][ T5279] invoke_syscall+0x98/0x2b0 [ 56.297523][ T5279] el0_svc_common+0x138/0x258 [ 56.298218][ T5279] do_el0_svc+0x58/0x13c [ 56.298894][ T5279] el0_svc+0x78/0x1d0 [ 56.299493][ T5279] el0t_64_sync_handler+0xcc/0xe4 [ 56.300268][ T5279] el0t_64_sync+0x1a0/0x1a4 [ 56.302286][ T5279] ------------[ cut here ]------------ [ 56.303190][ T5279] WARNING: CPU: 1 PID: 5279 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 56.304756][ T5279] Modules linked in: [ 56.305368][ T5279] CPU: 1 PID: 5279 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.306822][ T5279] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 56.308425][ T5279] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.309605][ T5279] pc : btrfs_quota_enable+0xff8/0x1674 [ 56.310488][ T5279] lr : btrfs_quota_enable+0xff8/0x1674 [ 56.311323][ T5279] sp : ffff800022247ae0 [ 56.311967][ T5279] x29: ffff800022247c40 x28: 0000000000001798 x27: ffff700004448f6c [ 56.313138][ T5279] x26: ffff0000dcba29a0 x25: ffff0000d9722000 x24: fffffffffffffff4 [ 56.314494][ T5279] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dcba29f8 [ 56.315668][ T5279] x20: 1fffe0001b97453f x19: ffff0000dac64000 x18: 0000000000000001 [ 56.316912][ T5279] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 56.318124][ T5279] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 56.319325][ T5279] x11: 0000000000000000 x10: 0000000000000000 x9 : 29cea1f5a42b5f00 [ 56.320519][ T5279] x8 : 29cea1f5a42b5f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 56.321771][ T5279] x5 : ffff8000222473f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 56.322965][ T5279] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 56.324157][ T5279] Call trace: [ 56.324679][ T5279] btrfs_quota_enable+0xff8/0x1674 [ 56.325513][ T5279] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 56.326339][ T5279] btrfs_ioctl+0x96c/0xa8c [ 56.327051][ T5279] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.327764][ T5279] invoke_syscall+0x98/0x2b0 [ 56.328481][ T5279] el0_svc_common+0x138/0x258 [ 56.329188][ T5279] do_el0_svc+0x58/0x13c [ 56.329848][ T5279] el0_svc+0x78/0x1d0 [ 56.330470][ T5279] el0t_64_sync_handler+0xcc/0xe4 [ 56.331251][ T5279] el0t_64_sync+0x1a0/0x1a4 [ 56.331947][ T5279] irq event stamp: 78654 [ 56.332600][ T5279] hardirqs last enabled at (78653): [] __up_console_sem+0xb4/0xfc [ 56.333959][ T5279] hardirqs last disabled at (78654): [] el1_dbg+0x24/0x80 [ 56.335314][ T5279] softirqs last enabled at (78634): [] handle_softirqs+0xa40/0xbe4 [ 56.336854][ T5279] softirqs last disabled at (78585): [] __irq_exit_rcu+0x240/0x43c [ 56.338317][ T5279] ---[ end trace 08f01cbbc25c5bf6 ]--- [ 56.339853][ T5279] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 56.341726][ T5279] BTRFS info (device loop0): forced readonly [ 56.522316][ T5300] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5300) [ 56.525509][ T5300] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 56.528053][ T5300] BTRFS info (device loop0): using free space tree [ 56.529004][ T5300] BTRFS info (device loop0): has skinny extents [ 56.540267][ T5300] BTRFS info (device loop0): enabling ssd optimizations [ 56.543704][ T5300] FAULT_INJECTION: forcing a failure. [ 56.543704][ T5300] name failslab, interval 1, probability 0, space 0, times 0 [ 56.545713][ T5300] CPU: 0 PID: 5300 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.546967][ T5300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 56.548459][ T5300] Call trace: [ 56.548922][ T5300] dump_backtrace+0x0/0x458 [ 56.549585][ T5300] show_stack+0x2c/0x3c [ 56.550205][ T5300] __dump_stack+0x30/0x40 [ 56.550858][ T5300] dump_stack_lvl+0xf4/0x15c [ 56.551592][ T5300] dump_stack+0x1c/0x5c [ 56.552171][ T5300] should_fail+0x3bc/0x514 [ 56.552829][ T5300] __should_failslab+0xbc/0x10c [ 56.553519][ T5300] should_failslab+0x10/0x28 [ 56.554176][ T5300] slab_pre_alloc_hook+0x64/0xe8 [ 56.554852][ T5300] kmem_cache_alloc_trace+0x98/0x3ec [ 56.555581][ T5300] btrfs_alloc_root+0x8c/0x97c [ 56.556220][ T5300] btrfs_create_tree+0x110/0x998 [ 56.556912][ T5300] btrfs_quota_enable+0x37c/0x1674 [ 56.557686][ T5300] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 56.558424][ T5300] btrfs_ioctl+0x96c/0xa8c [ 56.559067][ T5300] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.559810][ T5300] invoke_syscall+0x98/0x2b0 [ 56.560514][ T5300] el0_svc_common+0x138/0x258 [ 56.561221][ T5300] do_el0_svc+0x58/0x13c [ 56.561849][ T5300] el0_svc+0x78/0x1d0 [ 56.562478][ T5300] el0t_64_sync_handler+0xcc/0xe4 [ 56.563233][ T5300] el0t_64_sync+0x1a0/0x1a4 [ 56.564044][ T5300] ------------[ cut here ]------------ [ 56.564941][ T5300] WARNING: CPU: 0 PID: 5300 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 56.566439][ T5300] Modules linked in: [ 56.567073][ T5300] CPU: 0 PID: 5300 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.568501][ T5300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 56.570022][ T5300] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.571168][ T5300] pc : btrfs_quota_enable+0xff8/0x1674 [ 56.571942][ T5300] lr : btrfs_quota_enable+0xff8/0x1674 [ 56.572742][ T5300] sp : ffff800021d17ae0 [ 56.573372][ T5300] x29: ffff800021d17c40 x28: 0000000000001798 x27: ffff7000043a2f6c [ 56.574624][ T5300] x26: ffff0000dc9d34d0 x25: ffff0000c2980000 x24: fffffffffffffff4 [ 56.575820][ T5300] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dc9d3528 [ 56.576939][ T5300] x20: 1fffe0001b93a6a5 x19: ffff0000d649c000 x18: 0000000000000001 [ 56.578130][ T5300] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 56.579391][ T5300] x14: 0000000000000001 x13: 1ffff000043a2e7c x12: 0000000000ff0100 [ 56.580548][ T5300] x11: 0000000000000000 x10: 0000000000000000 x9 : cd8efe31b7d78e00 [ 56.581644][ T5300] x8 : cd8efe31b7d78e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 56.582924][ T5300] x5 : ffff800021d173f8 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 56.584138][ T5300] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 56.585381][ T5300] Call trace: [ 56.585824][ T5300] btrfs_quota_enable+0xff8/0x1674 [ 56.586615][ T5300] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 56.587399][ T5300] btrfs_ioctl+0x96c/0xa8c [ 56.588102][ T5300] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.588848][ T5300] invoke_syscall+0x98/0x2b0 [ 56.589519][ T5300] el0_svc_common+0x138/0x258 [ 56.590200][ T5300] do_el0_svc+0x58/0x13c [ 56.590839][ T5300] el0_svc+0x78/0x1d0 [ 56.591429][ T5300] el0t_64_sync_handler+0xcc/0xe4 [ 56.592163][ T5300] el0t_64_sync+0x1a0/0x1a4 [ 56.592899][ T5300] irq event stamp: 79204 [ 56.593544][ T5300] hardirqs last enabled at (79203): [] __up_console_sem+0xb4/0xfc [ 56.594903][ T5300] hardirqs last disabled at (79204): [] el1_dbg+0x24/0x80 [ 56.596114][ T5300] softirqs last enabled at (79184): [] handle_softirqs+0xa40/0xbe4 [ 56.597486][ T5300] softirqs last disabled at (79167): [] __irq_exit_rcu+0x240/0x43c [ 56.598931][ T5300] ---[ end trace 08f01cbbc25c5bf7 ]--- [ 56.600393][ T5300] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 56.601936][ T5300] BTRFS info (device loop0): forced readonly [ 56.768958][ T5321] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5321) [ 56.772554][ T5321] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 56.774192][ T5321] BTRFS info (device loop0): using free space tree [ 56.775128][ T5321] BTRFS info (device loop0): has skinny extents [ 56.790847][ T5321] BTRFS info (device loop0): enabling ssd optimizations [ 56.794574][ T5321] FAULT_INJECTION: forcing a failure. [ 56.794574][ T5321] name failslab, interval 1, probability 0, space 0, times 0 [ 56.796662][ T5321] CPU: 0 PID: 5321 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.798088][ T5321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 56.799708][ T5321] Call trace: [ 56.800242][ T5321] dump_backtrace+0x0/0x458 [ 56.800958][ T5321] show_stack+0x2c/0x3c [ 56.801542][ T5321] __dump_stack+0x30/0x40 [ 56.802198][ T5321] dump_stack_lvl+0xf4/0x15c [ 56.802900][ T5321] dump_stack+0x1c/0x5c [ 56.803524][ T5321] should_fail+0x3bc/0x514 [ 56.804119][ T5321] __should_failslab+0xbc/0x10c [ 56.804826][ T5321] should_failslab+0x10/0x28 [ 56.805510][ T5321] slab_pre_alloc_hook+0x64/0xe8 [ 56.806315][ T5321] kmem_cache_alloc_trace+0x98/0x3ec [ 56.807097][ T5321] btrfs_alloc_root+0x8c/0x97c [ 56.807815][ T5321] btrfs_create_tree+0x110/0x998 [ 56.808506][ T5321] btrfs_quota_enable+0x37c/0x1674 [ 56.809265][ T5321] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 56.810070][ T5321] btrfs_ioctl+0x96c/0xa8c [ 56.810767][ T5321] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.811574][ T5321] invoke_syscall+0x98/0x2b0 [ 56.812247][ T5321] el0_svc_common+0x138/0x258 [ 56.812941][ T5321] do_el0_svc+0x58/0x13c [ 56.813571][ T5321] el0_svc+0x78/0x1d0 [ 56.814160][ T5321] el0t_64_sync_handler+0xcc/0xe4 [ 56.814914][ T5321] el0t_64_sync+0x1a0/0x1a4 [ 56.816737][ T5321] ------------[ cut here ]------------ [ 56.817604][ T5321] WARNING: CPU: 0 PID: 5321 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 56.818953][ T5321] Modules linked in: [ 56.819485][ T5321] CPU: 0 PID: 5321 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.820801][ T5321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 56.822151][ T5321] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.823212][ T5321] pc : btrfs_quota_enable+0xff8/0x1674 [ 56.823996][ T5321] lr : btrfs_quota_enable+0xff8/0x1674 [ 56.824754][ T5321] sp : ffff8000223e7ae0 [ 56.825353][ T5321] x29: ffff8000223e7c40 x28: 0000000000001798 x27: ffff70000447cf6c [ 56.826523][ T5321] x26: ffff0000dc9d3370 x25: ffff0000c8972000 x24: fffffffffffffff4 [ 56.827631][ T5321] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dc9d33c8 [ 56.828763][ T5321] x20: 1fffe0001b93a679 x19: ffff0000d2148000 x18: 0000000000000001 [ 56.829884][ T5321] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 56.831062][ T5321] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 56.832198][ T5321] x11: 0000000000000000 x10: 0000000000000000 x9 : 251764c55b6a3000 [ 56.833372][ T5321] x8 : 251764c55b6a3000 x7 : 0000000000000001 x6 : 0000000000000001 [ 56.834603][ T5321] x5 : ffff8000223e73f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 56.835752][ T5321] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 56.836865][ T5321] Call trace: [ 56.837335][ T5321] btrfs_quota_enable+0xff8/0x1674 [ 56.838130][ T5321] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 56.838955][ T5321] btrfs_ioctl+0x96c/0xa8c [ 56.839591][ T5321] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.840344][ T5321] invoke_syscall+0x98/0x2b0 [ 56.841063][ T5321] el0_svc_common+0x138/0x258 [ 56.841779][ T5321] do_el0_svc+0x58/0x13c [ 56.842429][ T5321] el0_svc+0x78/0x1d0 [ 56.843015][ T5321] el0t_64_sync_handler+0xcc/0xe4 [ 56.843819][ T5321] el0t_64_sync+0x1a0/0x1a4 [ 56.844528][ T5321] irq event stamp: 79128 [ 56.845173][ T5321] hardirqs last enabled at (79127): [] __up_console_sem+0xb4/0xfc [ 56.846556][ T5321] hardirqs last disabled at (79128): [] el1_dbg+0x24/0x80 [ 56.847848][ T5321] softirqs last enabled at (79108): [] handle_softirqs+0xa40/0xbe4 [ 56.849209][ T5321] softirqs last disabled at (79071): [] __irq_exit_rcu+0x240/0x43c [ 56.850678][ T5321] ---[ end trace 08f01cbbc25c5bf8 ]--- [ 56.852794][ T5321] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 56.854385][ T5321] BTRFS info (device loop0): forced readonly 1970/01/01 00:00:56 executed programs: 34 [ 57.049824][ T5342] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5342) [ 57.055266][ T5342] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 57.056787][ T5342] BTRFS info (device loop0): using free space tree [ 57.057733][ T5342] BTRFS info (device loop0): has skinny extents [ 57.067530][ T5342] BTRFS info (device loop0): enabling ssd optimizations [ 57.070554][ T5342] FAULT_INJECTION: forcing a failure. [ 57.070554][ T5342] name failslab, interval 1, probability 0, space 0, times 0 [ 57.072998][ T5342] CPU: 1 PID: 5342 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.074419][ T5342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 57.075905][ T5342] Call trace: [ 57.076373][ T5342] dump_backtrace+0x0/0x458 [ 57.077049][ T5342] show_stack+0x2c/0x3c [ 57.077611][ T5342] __dump_stack+0x30/0x40 [ 57.078192][ T5342] dump_stack_lvl+0xf4/0x15c [ 57.078884][ T5342] dump_stack+0x1c/0x5c [ 57.079461][ T5342] should_fail+0x3bc/0x514 [ 57.080117][ T5342] __should_failslab+0xbc/0x10c [ 57.080877][ T5342] should_failslab+0x10/0x28 [ 57.081672][ T5342] slab_pre_alloc_hook+0x64/0xe8 [ 57.082434][ T5342] kmem_cache_alloc_trace+0x98/0x3ec [ 57.083311][ T5342] btrfs_alloc_root+0x8c/0x97c [ 57.083963][ T5342] btrfs_create_tree+0x110/0x998 [ 57.084719][ T5342] btrfs_quota_enable+0x37c/0x1674 [ 57.085475][ T5342] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 57.086292][ T5342] btrfs_ioctl+0x96c/0xa8c [ 57.086952][ T5342] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.087745][ T5342] invoke_syscall+0x98/0x2b0 [ 57.088463][ T5342] el0_svc_common+0x138/0x258 [ 57.089209][ T5342] do_el0_svc+0x58/0x13c [ 57.089832][ T5342] el0_svc+0x78/0x1d0 [ 57.090400][ T5342] el0t_64_sync_handler+0xcc/0xe4 [ 57.091144][ T5342] el0t_64_sync+0x1a0/0x1a4 [ 57.093267][ T5342] ------------[ cut here ]------------ [ 57.094141][ T5342] WARNING: CPU: 1 PID: 5342 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 57.095522][ T5342] Modules linked in: [ 57.096118][ T5342] CPU: 1 PID: 5342 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.097456][ T5342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 57.098967][ T5342] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 57.100127][ T5342] pc : btrfs_quota_enable+0xff8/0x1674 [ 57.100895][ T5342] lr : btrfs_quota_enable+0xff8/0x1674 [ 57.101708][ T5342] sp : ffff800022557ae0 [ 57.102291][ T5342] x29: ffff800022557c40 x28: 0000000000001798 x27: ffff7000044aaf6c [ 57.103494][ T5342] x26: ffff0000dcba2b00 x25: ffff0000dae98000 x24: fffffffffffffff4 [ 57.104688][ T5342] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dcba2b58 [ 57.105949][ T5342] x20: 1fffe0001b97456b x19: ffff0000ddddc000 x18: 0000000000000001 [ 57.107088][ T5342] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 57.108284][ T5342] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 57.109404][ T5342] x11: 0000000000000000 x10: 0000000000000000 x9 : e1967f71734f9100 [ 57.110527][ T5342] x8 : e1967f71734f9100 x7 : 0000000000000001 x6 : 0000000000000001 [ 57.111780][ T5342] x5 : ffff8000225573f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 57.112977][ T5342] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 57.114145][ T5342] Call trace: [ 57.114594][ T5342] btrfs_quota_enable+0xff8/0x1674 [ 57.115326][ T5342] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 57.116103][ T5342] btrfs_ioctl+0x96c/0xa8c [ 57.116717][ T5342] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.117376][ T5342] invoke_syscall+0x98/0x2b0 [ 57.118031][ T5342] el0_svc_common+0x138/0x258 [ 57.118679][ T5342] do_el0_svc+0x58/0x13c [ 57.119242][ T5342] el0_svc+0x78/0x1d0 [ 57.119819][ T5342] el0t_64_sync_handler+0xcc/0xe4 [ 57.120536][ T5342] el0t_64_sync+0x1a0/0x1a4 [ 57.121141][ T5342] irq event stamp: 79066 [ 57.121722][ T5342] hardirqs last enabled at (79065): [] __up_console_sem+0xb4/0xfc [ 57.123050][ T5342] hardirqs last disabled at (79066): [] el1_dbg+0x24/0x80 [ 57.124314][ T5342] softirqs last enabled at (79046): [] handle_softirqs+0xa40/0xbe4 [ 57.125664][ T5342] softirqs last disabled at (78979): [] __irq_exit_rcu+0x240/0x43c [ 57.127082][ T5342] ---[ end trace 08f01cbbc25c5bf9 ]--- [ 57.129615][ T5342] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 57.132239][ T5342] BTRFS info (device loop0): forced readonly [ 57.312593][ T5363] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5363) [ 57.315814][ T5363] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 57.318351][ T5363] BTRFS info (device loop0): using free space tree [ 57.319475][ T5363] BTRFS info (device loop0): has skinny extents [ 57.327819][ T5363] BTRFS info (device loop0): enabling ssd optimizations [ 57.331305][ T5363] FAULT_INJECTION: forcing a failure. [ 57.331305][ T5363] name failslab, interval 1, probability 0, space 0, times 0 [ 57.333186][ T5363] CPU: 1 PID: 5363 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.334486][ T5363] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 57.336034][ T5363] Call trace: [ 57.336549][ T5363] dump_backtrace+0x0/0x458 [ 57.337297][ T5363] show_stack+0x2c/0x3c [ 57.337968][ T5363] __dump_stack+0x30/0x40 [ 57.338608][ T5363] dump_stack_lvl+0xf4/0x15c [ 57.339228][ T5363] dump_stack+0x1c/0x5c [ 57.339837][ T5363] should_fail+0x3bc/0x514 [ 57.340507][ T5363] __should_failslab+0xbc/0x10c [ 57.341292][ T5363] should_failslab+0x10/0x28 [ 57.341992][ T5363] slab_pre_alloc_hook+0x64/0xe8 [ 57.342759][ T5363] kmem_cache_alloc+0x94/0x3d4 [ 57.343435][ T5363] start_transaction+0x4d0/0x13ec [ 57.344165][ T5363] btrfs_start_transaction+0x34/0x44 [ 57.344940][ T5363] btrfs_quota_enable+0x1d0/0x1674 [ 57.345696][ T5363] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 57.346477][ T5363] btrfs_ioctl+0x96c/0xa8c [ 57.347087][ T5363] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.347834][ T5363] invoke_syscall+0x98/0x2b0 [ 57.348490][ T5363] el0_svc_common+0x138/0x258 [ 57.349098][ T5363] do_el0_svc+0x58/0x13c [ 57.349649][ T5363] el0_svc+0x78/0x1d0 [ 57.350179][ T5363] el0t_64_sync_handler+0xcc/0xe4 [ 57.350875][ T5363] el0t_64_sync+0x1a0/0x1a4 [ 57.552207][ T5384] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5384) [ 57.555537][ T5384] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 57.557057][ T5384] BTRFS info (device loop0): using free space tree [ 57.558031][ T5384] BTRFS info (device loop0): has skinny extents [ 57.570495][ T5384] BTRFS info (device loop0): enabling ssd optimizations [ 57.573963][ T5384] FAULT_INJECTION: forcing a failure. [ 57.573963][ T5384] name failslab, interval 1, probability 0, space 0, times 0 [ 57.576079][ T5384] CPU: 1 PID: 5384 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.577537][ T5384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 57.579108][ T5384] Call trace: [ 57.579590][ T5384] dump_backtrace+0x0/0x458 [ 57.580328][ T5384] show_stack+0x2c/0x3c [ 57.581000][ T5384] __dump_stack+0x30/0x40 [ 57.581714][ T5384] dump_stack_lvl+0xf4/0x15c [ 57.582373][ T5384] dump_stack+0x1c/0x5c [ 57.582966][ T5384] should_fail+0x3bc/0x514 [ 57.583685][ T5384] __should_failslab+0xbc/0x10c [ 57.584393][ T5384] should_failslab+0x10/0x28 [ 57.585018][ T5384] slab_pre_alloc_hook+0x64/0xe8 [ 57.585787][ T5384] kmem_cache_alloc_trace+0x98/0x3ec [ 57.586559][ T5384] btrfs_alloc_root+0x8c/0x97c [ 57.587328][ T5384] btrfs_create_tree+0x110/0x998 [ 57.588059][ T5384] btrfs_quota_enable+0x37c/0x1674 [ 57.588834][ T5384] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 57.589635][ T5384] btrfs_ioctl+0x96c/0xa8c [ 57.590310][ T5384] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.591046][ T5384] invoke_syscall+0x98/0x2b0 [ 57.591727][ T5384] el0_svc_common+0x138/0x258 [ 57.592465][ T5384] do_el0_svc+0x58/0x13c [ 57.593115][ T5384] el0_svc+0x78/0x1d0 [ 57.593727][ T5384] el0t_64_sync_handler+0xcc/0xe4 [ 57.594427][ T5384] el0t_64_sync+0x1a0/0x1a4 [ 57.596536][ T5384] ------------[ cut here ]------------ [ 57.597492][ T5384] WARNING: CPU: 1 PID: 5384 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 57.598961][ T5384] Modules linked in: [ 57.599532][ T5384] CPU: 1 PID: 5384 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.600807][ T5384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 57.602160][ T5384] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 57.603253][ T5384] pc : btrfs_quota_enable+0xff8/0x1674 [ 57.604009][ T5384] lr : btrfs_quota_enable+0xff8/0x1674 [ 57.604800][ T5384] sp : ffff800022757ae0 [ 57.605448][ T5384] x29: ffff800022757c40 x28: 0000000000001798 x27: ffff7000044eaf6c [ 57.606685][ T5384] x26: ffff0000dcba2d10 x25: ffff0000ccef2000 x24: fffffffffffffff4 [ 57.607957][ T5384] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dcba2d68 [ 57.609147][ T5384] x20: 1fffe0001b9745ad x19: ffff0000cd7c4000 x18: 0000000000000001 [ 57.610365][ T5384] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 57.611583][ T5384] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 57.612863][ T5384] x11: 0000000000000000 x10: 0000000000000000 x9 : 4ae0b687e3912300 [ 57.613973][ T5384] x8 : 4ae0b687e3912300 x7 : 0000000000000001 x6 : 0000000000000001 [ 57.615194][ T5384] x5 : ffff8000227573f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 57.616465][ T5384] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 57.617653][ T5384] Call trace: [ 57.618156][ T5384] btrfs_quota_enable+0xff8/0x1674 [ 57.618880][ T5384] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 57.619604][ T5384] btrfs_ioctl+0x96c/0xa8c [ 57.620187][ T5384] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.620877][ T5384] invoke_syscall+0x98/0x2b0 [ 57.621539][ T5384] el0_svc_common+0x138/0x258 [ 57.622247][ T5384] do_el0_svc+0x58/0x13c [ 57.622899][ T5384] el0_svc+0x78/0x1d0 [ 57.623435][ T5384] el0t_64_sync_handler+0xcc/0xe4 [ 57.624121][ T5384] el0t_64_sync+0x1a0/0x1a4 [ 57.624735][ T5384] irq event stamp: 78964 [ 57.625368][ T5384] hardirqs last enabled at (78963): [] __up_console_sem+0xb4/0xfc [ 57.626720][ T5384] hardirqs last disabled at (78964): [] el1_dbg+0x24/0x80 [ 57.628041][ T5384] softirqs last enabled at (78944): [] handle_softirqs+0xa40/0xbe4 [ 57.629543][ T5384] softirqs last disabled at (78895): [] __irq_exit_rcu+0x240/0x43c [ 57.630936][ T5384] ---[ end trace 08f01cbbc25c5bfa ]--- [ 57.632491][ T5384] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 57.633902][ T5384] BTRFS info (device loop0): forced readonly [ 57.805223][ T5405] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5405) [ 57.808325][ T5405] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 57.810788][ T5405] BTRFS info (device loop0): using free space tree [ 57.812198][ T5405] BTRFS info (device loop0): has skinny extents [ 57.819571][ T5405] BTRFS info (device loop0): enabling ssd optimizations [ 57.823510][ T5405] FAULT_INJECTION: forcing a failure. [ 57.823510][ T5405] name failslab, interval 1, probability 0, space 0, times 0 [ 57.825394][ T5405] CPU: 0 PID: 5405 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.826810][ T5405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 57.828270][ T5405] Call trace: [ 57.828776][ T5405] dump_backtrace+0x0/0x458 [ 57.829424][ T5405] show_stack+0x2c/0x3c [ 57.830069][ T5405] __dump_stack+0x30/0x40 [ 57.830803][ T5405] dump_stack_lvl+0xf4/0x15c [ 57.831502][ T5405] dump_stack+0x1c/0x5c [ 57.832128][ T5405] should_fail+0x3bc/0x514 [ 57.832751][ T5405] __should_failslab+0xbc/0x10c [ 57.833434][ T5405] should_failslab+0x10/0x28 [ 57.834130][ T5405] slab_pre_alloc_hook+0x64/0xe8 [ 57.834840][ T5405] kmem_cache_alloc_trace+0x98/0x3ec [ 57.835654][ T5405] btrfs_alloc_root+0x8c/0x97c [ 57.836347][ T5405] btrfs_create_tree+0x110/0x998 [ 57.837240][ T5405] btrfs_quota_enable+0x37c/0x1674 [ 57.838035][ T5405] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 57.838837][ T5405] btrfs_ioctl+0x96c/0xa8c [ 57.839568][ T5405] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.840275][ T5405] invoke_syscall+0x98/0x2b0 [ 57.840957][ T5405] el0_svc_common+0x138/0x258 [ 57.841668][ T5405] do_el0_svc+0x58/0x13c [ 57.842317][ T5405] el0_svc+0x78/0x1d0 [ 57.842875][ T5405] el0t_64_sync_handler+0xcc/0xe4 [ 57.843627][ T5405] el0t_64_sync+0x1a0/0x1a4 [ 57.845029][ T5405] ------------[ cut here ]------------ [ 57.845969][ T5405] WARNING: CPU: 0 PID: 5405 at fs/btrfs/qgroup.c:1009 btrfs_quota_enable+0xff8/0x1674 [ 57.847354][ T5405] Modules linked in: [ 57.847959][ T5405] CPU: 0 PID: 5405 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.849231][ T5405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 57.850663][ T5405] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 57.851882][ T5405] pc : btrfs_quota_enable+0xff8/0x1674 [ 57.852678][ T5405] lr : btrfs_quota_enable+0xff8/0x1674 [ 57.853471][ T5405] sp : ffff800022557ae0 [ 57.854067][ T5405] x29: ffff800022557c40 x28: 0000000000001798 x27: ffff7000044aaf6c [ 57.855334][ T5405] x26: ffff0000dc9d3bb0 x25: ffff0000ce146000 x24: fffffffffffffff4 [ 57.856507][ T5405] x23: 0000000000000000 x22: dfff800000000000 x21: ffff0000dc9d3c08 [ 57.857774][ T5405] x20: 1fffe0001b93a781 x19: ffff0000cd7c4000 x18: 0000000000000001 [ 57.859061][ T5405] x17: 0000000000000000 x16: ffff800011254fd8 x15: 00000000ffffffff [ 57.860311][ T5405] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 57.861521][ T5405] x11: 0000000000000000 x10: 0000000000000000 x9 : 0340ceee73494500 [ 57.862808][ T5405] x8 : 0340ceee73494500 x7 : 0000000000000001 x6 : 0000000000000001 [ 57.864068][ T5405] x5 : ffff8000225573f8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 57.865260][ T5405] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 57.866454][ T5405] Call trace: [ 57.866950][ T5405] btrfs_quota_enable+0xff8/0x1674 [ 57.867666][ T5405] btrfs_ioctl_quota_ctl+0x13c/0x180 [ 57.868406][ T5405] btrfs_ioctl+0x96c/0xa8c [ 57.869034][ T5405] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.869708][ T5405] invoke_syscall+0x98/0x2b0 [ 57.870376][ T5405] el0_svc_common+0x138/0x258 [ 57.871074][ T5405] do_el0_svc+0x58/0x13c [ 57.871740][ T5405] el0_svc+0x78/0x1d0 [ 57.872380][ T5405] el0t_64_sync_handler+0xcc/0xe4 [ 57.873093][ T5405] el0t_64_sync+0x1a0/0x1a4 [ 57.873834][ T5405] irq event stamp: 79364 [ 57.874473][ T5405] hardirqs last enabled at (79363): [] __up_console_sem+0xb4/0xfc [ 57.875940][ T5405] hardirqs last disabled at (79364): [] el1_dbg+0x24/0x80 [ 57.877357][ T5405] softirqs last enabled at (79344): [] handle_softirqs+0xa40/0xbe4 [ 57.878685][ T5405] softirqs last disabled at (79327): [] __irq_exit_rcu+0x240/0x43c [ 57.880010][ T5405] ---[ end trace 08f01cbbc25c5bfb ]--- [ 57.881649][ T5405] BTRFS: error (device loop0) in btrfs_quota_enable:1009: errno=-12 Out of memory [ 57.883141][ T5405] BTRFS info (device loop0): forced readonly