Warning: Permanently added '10.128.10.19' (ED25519) to the list of known hosts. 1970/01/01 00:00:50 ignoring optional flag "type"="gce" 1970/01/01 00:00:50 parsed 1 programs 1970/01/01 00:00:50 executed programs: 0 [ 50.624854][ T4314] chnl_net:caif_netlink_parms(): no params data found [ 50.643887][ T4314] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.645209][ T4314] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.646766][ T4314] device bridge_slave_0 entered promiscuous mode [ 50.648914][ T4314] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.650036][ T4314] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.651595][ T4314] device bridge_slave_1 entered promiscuous mode [ 50.660287][ T4314] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 50.663194][ T4314] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 50.671032][ T4314] team0: Port device team_slave_0 added [ 50.673660][ T4314] team0: Port device team_slave_1 added [ 50.680160][ T4314] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 50.681319][ T4314] 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. [ 50.685921][ T4314] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 50.688401][ T4314] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 50.689559][ T4314] 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. [ 50.693839][ T4314] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 50.762808][ T4314] device hsr_slave_0 entered promiscuous mode [ 50.811958][ T4314] device hsr_slave_1 entered promiscuous mode [ 51.393714][ T4314] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 51.433277][ T4314] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 51.465108][ T4314] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 51.514025][ T4314] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 51.540243][ T4314] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.541556][ T4314] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.543147][ T4314] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.544355][ T4314] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.567448][ T4314] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.575175][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.577133][ T148] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.578779][ T148] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.580842][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 51.586546][ T4314] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.591111][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 51.594101][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.595249][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.596662][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.598272][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.599430][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.609918][ T4314] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 51.613220][ T4314] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 51.616112][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 51.617877][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 51.619821][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.621514][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.624367][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.627683][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.629427][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.631148][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.633401][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.634885][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.636409][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.680556][ T4314] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.682575][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.683933][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.693856][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 51.695540][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 51.704672][ T4314] device veth0_vlan entered promiscuous mode [ 51.706039][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 51.709009][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 51.716151][ T4314] device veth1_vlan entered promiscuous mode [ 51.719498][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 51.721069][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 51.723557][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 51.725068][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 51.732424][ T4314] device veth0_macvtap entered promiscuous mode [ 51.734270][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 51.736173][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 51.737830][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 51.740465][ T4314] device veth1_macvtap entered promiscuous mode [ 51.746800][ T4314] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 51.748131][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 51.749556][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 51.751804][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 51.755308][ T4314] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 51.757465][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 51.759588][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 51.761564][ T4314] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.764728][ T4314] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.766152][ T4314] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.767632][ T4314] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.808082][ T4434] FAULT_INJECTION: forcing a failure. [ 51.808082][ T4434] name failslab, interval 1, probability 0, space 0, times 1 [ 51.810338][ T4434] CPU: 0 PID: 4434 Comm: syz-executor.0 Not tainted syzkaller #0 [ 51.811508][ T4434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 51.813259][ T4434] Call trace: [ 51.813820][ T4434] dump_backtrace+0x0/0x458 [ 51.814576][ T4434] show_stack+0x2c/0x3c [ 51.815287][ T4434] __dump_stack+0x30/0x40 [ 51.816083][ T4434] dump_stack_lvl+0xf4/0x15c [ 51.816862][ T4434] dump_stack+0x1c/0x5c [ 51.817595][ T4434] should_fail+0x3bc/0x514 [ 51.818309][ T4434] __should_failslab+0xbc/0x10c [ 51.819108][ T4434] should_failslab+0x10/0x28 [ 51.819931][ T4434] slab_pre_alloc_hook+0x64/0xe8 [ 51.820749][ T4434] kmem_cache_alloc_trace+0x98/0x3ec [ 51.821573][ T4434] rand_initialize_disk+0x58/0xb8 [ 51.822448][ T4434] __alloc_disk_node+0x2a8/0x450 [ 51.823304][ T4434] __blk_mq_alloc_disk+0xe8/0x154 [ 51.824151][ T4434] loop_add+0x240/0x6e0 [ 51.824878][ T4434] loop_control_ioctl+0x130/0x4e0 [ 51.825731][ T4434] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.826559][ T4434] invoke_syscall+0x98/0x2b0 [ 51.827337][ T4434] el0_svc_common+0x138/0x258 [ 51.828096][ T4434] do_el0_svc+0x58/0x13c [ 51.828744][ T4434] el0_svc+0x78/0x1d0 [ 51.829389][ T4434] el0t_64_sync_handler+0xcc/0xe4 [ 51.830198][ T4434] el0t_64_sync+0x1a0/0x1a4 [ 51.855579][ T4441] FAULT_INJECTION: forcing a failure. [ 51.855579][ T4441] name failslab, interval 1, probability 0, space 0, times 0 [ 51.857802][ T4441] CPU: 0 PID: 4441 Comm: syz-executor.0 Not tainted syzkaller #0 [ 51.858997][ T4441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 51.860689][ T4441] Call trace: [ 51.861231][ T4441] dump_backtrace+0x0/0x458 [ 51.861984][ T4441] show_stack+0x2c/0x3c [ 51.862641][ T4441] __dump_stack+0x30/0x40 [ 51.863363][ T4441] dump_stack_lvl+0xf4/0x15c [ 51.864161][ T4441] dump_stack+0x1c/0x5c [ 51.864841][ T4441] should_fail+0x3bc/0x514 [ 51.865586][ T4441] __should_failslab+0xbc/0x10c [ 51.866442][ T4441] should_failslab+0x10/0x28 [ 51.867210][ T4441] slab_pre_alloc_hook+0x64/0xe8 [ 51.868060][ T4441] __kmalloc_track_caller+0x70/0x358 [ 51.868909][ T4441] kstrdup+0xe4/0x15c [ 51.869534][ T4441] kstrdup_const+0x54/0x6c [ 51.870306][ T4441] kvasprintf_const+0x120/0x2e4 [ 51.871114][ T4441] kobject_set_name_vargs+0xd8/0x1c8 [ 51.871928][ T4441] dev_set_name+0xe8/0x13c [ 51.872620][ T4441] device_add_disk+0x258/0xacc [ 51.873502][ T4441] loop_add+0x510/0x6e0 [ 51.874183][ T4441] loop_control_ioctl+0x130/0x4e0 [ 51.875004][ T4441] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.875837][ T4441] invoke_syscall+0x98/0x2b0 [ 51.876529][ T4441] el0_svc_common+0x138/0x258 [ 51.877301][ T4441] do_el0_svc+0x58/0x13c [ 51.878034][ T4441] el0_svc+0x78/0x1d0 [ 51.878761][ T4441] el0t_64_sync_handler+0xcc/0xe4 [ 51.879586][ T4441] el0t_64_sync+0x1a0/0x1a4 [ 51.882812][ T4441] ------------[ cut here ]------------ [ 51.883712][ T4441] WARNING: CPU: 0 PID: 4441 at block/genhd.c:547 device_add_disk+0x5d4/0xacc [ 51.885147][ T4441] Modules linked in: [ 51.885765][ T4441] CPU: 0 PID: 4441 Comm: syz-executor.0 Not tainted syzkaller #0 [ 51.886922][ T4441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 51.888796][ T4441] pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.890127][ T4441] pc : device_add_disk+0x5d4/0xacc [ 51.890958][ T4441] lr : device_add_disk+0x5d0/0xacc [ 51.891819][ T4441] sp : ffff80001f0e7b60 [ 51.892491][ T4441] x29: ffff80001f0e7bc0 x28: dfff800000000000 x27: ffff0000c04b4680 [ 51.894027][ T4441] x26: ffff0000c04b4b7c x25: 00000000ffffffea x24: ffff0000ce75f0a0 [ 51.895449][ T4441] x23: 1fffe00019cebe14 x22: 0000000000000001 x21: ffff0000ce75f090 [ 51.896856][ T4441] x20: 0000000000000007 x19: ffff0000ce75f004 x18: 0000000000000001 [ 51.898224][ T4441] x17: 0000000000000000 x16: ffff8000082c2df0 x15: ffff80000892a094 [ 51.899560][ T4441] x14: 0000000000000001 x13: 1fffe000180968df x12: 0000000000ff0100 [ 51.900974][ T4441] x11: 0000000000000000 x10: 0000000000000000 x9 : ffff80000a63a048 [ 51.902436][ T4441] x8 : ffff0000d77b9b40 x7 : 0000000000000000 x6 : ffff80000805b5c8 [ 51.903987][ T4441] x5 : ffff0000db8f6e30 x4 : 0000000000000000 x3 : ffff80000a93d480 [ 51.905409][ T4441] x2 : 0000000000000001 x1 : 0000000000000007 x0 : 0000000000000103 [ 51.906794][ T4441] Call trace: [ 51.907388][ T4441] device_add_disk+0x5d4/0xacc [ 51.908195][ T4441] loop_add+0x510/0x6e0 [ 51.908907][ T4441] loop_control_ioctl+0x130/0x4e0 [ 51.909770][ T4441] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.910637][ T4441] invoke_syscall+0x98/0x2b0 [ 51.911454][ T4441] el0_svc_common+0x138/0x258 [ 51.912259][ T4441] do_el0_svc+0x58/0x13c [ 51.913032][ T4441] el0_svc+0x78/0x1d0 [ 51.913717][ T4441] el0t_64_sync_handler+0xcc/0xe4 [ 51.914527][ T4441] el0t_64_sync+0x1a0/0x1a4 [ 51.915332][ T4441] irq event stamp: 446 [ 51.916113][ T4441] hardirqs last enabled at (445): [] kasan_quarantine_put+0xc4/0x200 [ 51.917770][ T4441] hardirqs last disabled at (446): [] el1_dbg+0x24/0x80 [ 51.919269][ T4441] softirqs last enabled at (432): [] handle_softirqs+0xa40/0xbe4 [ 51.920912][ T4441] softirqs last disabled at (417): [] __irq_exit_rcu+0x240/0x43c [ 51.922669][ T4441] ---[ end trace 3869aab1573b47c6 ]--- [ 51.944935][ T4453] FAULT_INJECTION: forcing a failure. [ 51.944935][ T4453] name failslab, interval 1, probability 0, space 0, times 0 [ 51.947336][ T4453] CPU: 0 PID: 4453 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.948994][ T4453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 51.950788][ T4453] Call trace: [ 51.951350][ T4453] dump_backtrace+0x0/0x458 [ 51.952161][ T4453] show_stack+0x2c/0x3c [ 51.952872][ T4453] __dump_stack+0x30/0x40 [ 51.953590][ T4453] dump_stack_lvl+0xf4/0x15c [ 51.954343][ T4453] dump_stack+0x1c/0x5c [ 51.955056][ T4453] should_fail+0x3bc/0x514 [ 51.955795][ T4453] __should_failslab+0xbc/0x10c [ 51.956626][ T4453] should_failslab+0x10/0x28 [ 51.957376][ T4453] slab_pre_alloc_hook+0x64/0xe8 [ 51.958209][ T4453] kmem_cache_alloc_trace+0x98/0x3ec [ 51.959059][ T4453] blk_iolatency_init+0x64/0x430 [ 51.959910][ T4453] blkcg_init_queue+0x3f0/0x484 [ 51.960789][ T4453] blk_alloc_queue+0x3cc/0x4a0 [ 51.961706][ T4453] __blk_mq_alloc_disk+0x5c/0x154 [ 51.962570][ T4453] loop_add+0x240/0x6e0 [ 51.963266][ T4453] loop_control_ioctl+0x130/0x4e0 [ 51.964108][ T4453] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.965001][ T4453] invoke_syscall+0x98/0x2b0 [ 51.965809][ T4453] el0_svc_common+0x138/0x258 [ 51.966619][ T4453] do_el0_svc+0x58/0x13c [ 51.967399][ T4453] el0_svc+0x78/0x1d0 [ 51.968073][ T4453] el0t_64_sync_handler+0xcc/0xe4 [ 51.968964][ T4453] el0t_64_sync+0x1a0/0x1a4 [ 51.988351][ T4461] FAULT_INJECTION: forcing a failure. [ 51.988351][ T4461] name failslab, interval 1, probability 0, space 0, times 0 [ 51.990535][ T4461] CPU: 0 PID: 4461 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.991956][ T4461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 51.993608][ T4461] Call trace: [ 51.994129][ T4461] dump_backtrace+0x0/0x458 [ 51.994870][ T4461] show_stack+0x2c/0x3c [ 51.995540][ T4461] __dump_stack+0x30/0x40 [ 51.996211][ T4461] dump_stack_lvl+0xf4/0x15c [ 51.996968][ T4461] dump_stack+0x1c/0x5c [ 51.997645][ T4461] should_fail+0x3bc/0x514 [ 51.998332][ T4461] __should_failslab+0xbc/0x10c [ 51.999046][ T4461] should_failslab+0x10/0x28 [ 51.999767][ T4461] slab_pre_alloc_hook+0x64/0xe8 [ 52.000516][ T4461] kmem_cache_alloc_trace+0x98/0x3ec [ 52.001344][ T4461] device_add+0xbc/0xf90 [ 52.001914][ T4461] device_add_disk+0x2d0/0xacc [ 52.002670][ T4461] loop_add+0x510/0x6e0 [ 52.003262][ T4461] loop_control_ioctl+0x130/0x4e0 [ 52.004018][ T4461] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.004775][ T4461] invoke_syscall+0x98/0x2b0 [ 52.005579][ T4461] el0_svc_common+0x138/0x258 [ 52.006339][ T4461] do_el0_svc+0x58/0x13c [ 52.007086][ T4461] el0_svc+0x78/0x1d0 [ 52.007737][ T4461] el0t_64_sync_handler+0xcc/0xe4 [ 52.008579][ T4461] el0t_64_sync+0x1a0/0x1a4 [ 52.020921][ T4466] FAULT_INJECTION: forcing a failure. [ 52.020921][ T4466] name failslab, interval 1, probability 0, space 0, times 0 [ 52.024235][ T4466] CPU: 0 PID: 4466 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.025772][ T4466] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.027522][ T4466] Call trace: [ 52.028064][ T4466] dump_backtrace+0x0/0x458 [ 52.028831][ T4466] show_stack+0x2c/0x3c [ 52.029495][ T4466] __dump_stack+0x30/0x40 [ 52.030283][ T4466] dump_stack_lvl+0xf4/0x15c [ 52.031099][ T4466] dump_stack+0x1c/0x5c [ 52.031758][ T4466] should_fail+0x3bc/0x514 [ 52.032472][ T4466] __should_failslab+0xbc/0x10c [ 52.033319][ T4466] should_failslab+0x10/0x28 [ 52.034165][ T4466] slab_pre_alloc_hook+0x64/0xe8 [ 52.035033][ T4466] kmem_cache_alloc_trace+0x98/0x3ec [ 52.035913][ T4466] device_add+0xbc/0xf90 [ 52.036624][ T4466] device_add_disk+0x2d0/0xacc [ 52.037392][ T4466] loop_add+0x510/0x6e0 [ 52.038130][ T4466] loop_control_ioctl+0x130/0x4e0 [ 52.038921][ T4466] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.039761][ T4466] invoke_syscall+0x98/0x2b0 [ 52.040549][ T4466] el0_svc_common+0x138/0x258 [ 52.041305][ T4466] do_el0_svc+0x58/0x13c [ 52.042014][ T4466] el0_svc+0x78/0x1d0 [ 52.042748][ T4466] el0t_64_sync_handler+0xcc/0xe4 [ 52.043585][ T4466] el0t_64_sync+0x1a0/0x1a4 [ 52.056509][ T4470] FAULT_INJECTION: forcing a failure. [ 52.056509][ T4470] name failslab, interval 1, probability 0, space 0, times 0 [ 52.058786][ T4470] CPU: 0 PID: 4470 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.060132][ T4470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.061870][ T4470] Call trace: [ 52.062412][ T4470] dump_backtrace+0x0/0x458 [ 52.063184][ T4470] show_stack+0x2c/0x3c [ 52.063848][ T4470] __dump_stack+0x30/0x40 [ 52.064546][ T4470] dump_stack_lvl+0xf4/0x15c [ 52.065333][ T4470] dump_stack+0x1c/0x5c [ 52.066076][ T4470] should_fail+0x3bc/0x514 [ 52.066831][ T4470] __should_failslab+0xbc/0x10c [ 52.067657][ T4470] should_failslab+0x10/0x28 [ 52.068403][ T4470] slab_pre_alloc_hook+0x64/0xe8 [ 52.069238][ T4470] kmem_cache_alloc_trace+0x98/0x3ec [ 52.070109][ T4470] device_add+0xbc/0xf90 [ 52.070808][ T4470] device_add_disk+0x2d0/0xacc [ 52.071555][ T4470] loop_add+0x510/0x6e0 [ 52.072236][ T4470] loop_control_ioctl+0x130/0x4e0 [ 52.073072][ T4470] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.073931][ T4470] invoke_syscall+0x98/0x2b0 [ 52.074698][ T4470] el0_svc_common+0x138/0x258 [ 52.075493][ T4470] do_el0_svc+0x58/0x13c [ 52.076227][ T4470] el0_svc+0x78/0x1d0 [ 52.076930][ T4470] el0t_64_sync_handler+0xcc/0xe4 [ 52.077800][ T4470] el0t_64_sync+0x1a0/0x1a4 [ 52.089954][ T4476] FAULT_INJECTION: forcing a failure. [ 52.089954][ T4476] name failslab, interval 1, probability 0, space 0, times 0 [ 52.092674][ T4476] CPU: 0 PID: 4476 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.094147][ T4476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.095832][ T4476] Call trace: [ 52.096334][ T4476] dump_backtrace+0x0/0x458 [ 52.097085][ T4476] show_stack+0x2c/0x3c [ 52.097745][ T4476] __dump_stack+0x30/0x40 [ 52.098472][ T4476] dump_stack_lvl+0xf4/0x15c [ 52.099252][ T4476] dump_stack+0x1c/0x5c [ 52.099957][ T4476] should_fail+0x3bc/0x514 [ 52.100647][ T4476] __should_failslab+0xbc/0x10c [ 52.101406][ T4476] should_failslab+0x10/0x28 [ 52.102192][ T4476] slab_pre_alloc_hook+0x64/0xe8 [ 52.102976][ T4476] kmem_cache_alloc_trace+0x98/0x3ec [ 52.103884][ T4476] rand_initialize_disk+0x58/0xb8 [ 52.104701][ T4476] __alloc_disk_node+0x2a8/0x450 [ 52.105524][ T4476] __blk_mq_alloc_disk+0xe8/0x154 [ 52.106397][ T4476] loop_add+0x240/0x6e0 [ 52.107093][ T4476] loop_control_ioctl+0x130/0x4e0 [ 52.108000][ T4476] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.108868][ T4476] invoke_syscall+0x98/0x2b0 [ 52.109681][ T4476] el0_svc_common+0x138/0x258 [ 52.110458][ T4476] do_el0_svc+0x58/0x13c [ 52.111147][ T4476] el0_svc+0x78/0x1d0 [ 52.111855][ T4476] el0t_64_sync_handler+0xcc/0xe4 [ 52.112699][ T4476] el0t_64_sync+0x1a0/0x1a4 [ 52.130508][ T4482] FAULT_INJECTION: forcing a failure. [ 52.130508][ T4482] name failslab, interval 1, probability 0, space 0, times 0 [ 52.132931][ T4482] CPU: 0 PID: 4482 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.134414][ T4482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.136138][ T4482] Call trace: [ 52.136763][ T4482] dump_backtrace+0x0/0x458 [ 52.137536][ T4482] show_stack+0x2c/0x3c [ 52.138286][ T4482] __dump_stack+0x30/0x40 [ 52.139039][ T4482] dump_stack_lvl+0xf4/0x15c [ 52.139812][ T4482] dump_stack+0x1c/0x5c [ 52.140519][ T4482] should_fail+0x3bc/0x514 [ 52.141259][ T4482] __should_failslab+0xbc/0x10c [ 52.142085][ T4482] should_failslab+0x10/0x28 [ 52.142845][ T4482] slab_pre_alloc_hook+0x64/0xe8 [ 52.143723][ T4482] kmem_cache_alloc+0x94/0x3d4 [ 52.144542][ T4482] __debug_object_init+0x798/0xa0c [ 52.145432][ T4482] debug_object_init+0x20/0x2c [ 52.146247][ T4482] init_timer_key+0x54/0x410 [ 52.147052][ T4482] blk_iolatency_init+0x2cc/0x430 [ 52.147810][ T4482] blkcg_init_queue+0x3f0/0x484 [ 52.148635][ T4482] blk_alloc_queue+0x3cc/0x4a0 [ 52.149452][ T4482] __blk_mq_alloc_disk+0x5c/0x154 [ 52.150304][ T4482] loop_add+0x240/0x6e0 [ 52.150993][ T4482] loop_control_ioctl+0x130/0x4e0 [ 52.151913][ T4482] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.152782][ T4482] invoke_syscall+0x98/0x2b0 [ 52.153572][ T4482] el0_svc_common+0x138/0x258 [ 52.154422][ T4482] do_el0_svc+0x58/0x13c [ 52.155111][ T4482] el0_svc+0x78/0x1d0 [ 52.155770][ T4482] el0t_64_sync_handler+0xcc/0xe4 [ 52.156656][ T4482] el0t_64_sync+0x1a0/0x1a4 [ 52.170938][ T4487] FAULT_INJECTION: forcing a failure. [ 52.170938][ T4487] name failslab, interval 1, probability 0, space 0, times 0 [ 52.173316][ T4487] CPU: 0 PID: 4487 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.174798][ T4487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.176436][ T4487] Call trace: [ 52.176964][ T4487] dump_backtrace+0x0/0x458 [ 52.177693][ T4487] show_stack+0x2c/0x3c [ 52.178402][ T4487] __dump_stack+0x30/0x40 [ 52.179148][ T4487] dump_stack_lvl+0xf4/0x15c [ 52.179880][ T4487] dump_stack+0x1c/0x5c [ 52.180644][ T4487] should_fail+0x3bc/0x514 [ 52.181348][ T4487] __should_failslab+0xbc/0x10c [ 52.182154][ T4487] should_failslab+0x10/0x28 [ 52.182881][ T4487] slab_pre_alloc_hook+0x64/0xe8 [ 52.183691][ T4487] kmem_cache_alloc_trace+0x98/0x3ec [ 52.184591][ T4487] device_add+0xbc/0xf90 [ 52.185290][ T4487] device_add_disk+0x2d0/0xacc [ 52.186066][ T4487] loop_add+0x510/0x6e0 [ 52.186754][ T4487] loop_control_ioctl+0x130/0x4e0 [ 52.187607][ T4487] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.188448][ T4487] invoke_syscall+0x98/0x2b0 [ 52.189273][ T4487] el0_svc_common+0x138/0x258 [ 52.190093][ T4487] do_el0_svc+0x58/0x13c [ 52.190839][ T4487] el0_svc+0x78/0x1d0 [ 52.191441][ T4487] el0t_64_sync_handler+0xcc/0xe4 [ 52.192327][ T4487] el0t_64_sync+0x1a0/0x1a4 [ 52.205885][ T4491] FAULT_INJECTION: forcing a failure. [ 52.205885][ T4491] name failslab, interval 1, probability 0, space 0, times 0 [ 52.208155][ T4491] CPU: 0 PID: 4491 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.209564][ T4491] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.211167][ T4491] Call trace: [ 52.211691][ T4491] dump_backtrace+0x0/0x458 [ 52.212468][ T4491] show_stack+0x2c/0x3c [ 52.213158][ T4491] __dump_stack+0x30/0x40 [ 52.213869][ T4491] dump_stack_lvl+0xf4/0x15c [ 52.214613][ T4491] dump_stack+0x1c/0x5c [ 52.215334][ T4491] should_fail+0x3bc/0x514 [ 52.216060][ T4491] __should_failslab+0xbc/0x10c [ 52.216862][ T4491] should_failslab+0x10/0x28 [ 52.217661][ T4491] slab_pre_alloc_hook+0x64/0xe8 [ 52.218482][ T4491] kmem_cache_alloc_trace+0x98/0x3ec [ 52.219392][ T4491] device_add+0xbc/0xf90 [ 52.220046][ T4491] device_add_disk+0x2d0/0xacc [ 52.220878][ T4491] loop_add+0x510/0x6e0 [ 52.221545][ T4491] loop_control_ioctl+0x130/0x4e0 [ 52.222381][ T4491] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.223219][ T4491] invoke_syscall+0x98/0x2b0 [ 52.224054][ T4491] el0_svc_common+0x138/0x258 [ 52.224825][ T4491] do_el0_svc+0x58/0x13c [ 52.225533][ T4491] el0_svc+0x78/0x1d0 [ 52.226188][ T4491] el0t_64_sync_handler+0xcc/0xe4 [ 52.227037][ T4491] el0t_64_sync+0x1a0/0x1a4 [ 52.239436][ T4496] FAULT_INJECTION: forcing a failure. [ 52.239436][ T4496] name failslab, interval 1, probability 0, space 0, times 0 [ 52.241655][ T4496] CPU: 0 PID: 4496 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.243227][ T4496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.245009][ T4496] Call trace: [ 52.245558][ T4496] dump_backtrace+0x0/0x458 [ 52.246340][ T4496] show_stack+0x2c/0x3c [ 52.247057][ T4496] __dump_stack+0x30/0x40 [ 52.247804][ T4496] dump_stack_lvl+0xf4/0x15c [ 52.248539][ T4496] dump_stack+0x1c/0x5c [ 52.249253][ T4496] should_fail+0x3bc/0x514 [ 52.250049][ T4496] __should_failslab+0xbc/0x10c [ 52.250842][ T4496] should_failslab+0x10/0x28 [ 52.251602][ T4496] slab_pre_alloc_hook+0x64/0xe8 [ 52.252482][ T4496] kmem_cache_alloc_trace+0x98/0x3ec [ 52.253355][ T4496] device_add+0xbc/0xf90 [ 52.254088][ T4496] device_add_disk+0x2d0/0xacc [ 52.254893][ T4496] loop_add+0x510/0x6e0 [ 52.255555][ T4496] loop_control_ioctl+0x130/0x4e0 [ 52.256438][ T4496] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.257354][ T4496] invoke_syscall+0x98/0x2b0 [ 52.258190][ T4496] el0_svc_common+0x138/0x258 [ 52.259045][ T4496] do_el0_svc+0x58/0x13c [ 52.259825][ T4496] el0_svc+0x78/0x1d0 [ 52.260514][ T4496] el0t_64_sync_handler+0xcc/0xe4 [ 52.261359][ T4496] el0t_64_sync+0x1a0/0x1a4 [ 52.275089][ T4503] FAULT_INJECTION: forcing a failure. [ 52.275089][ T4503] name failslab, interval 1, probability 0, space 0, times 0 [ 52.277431][ T4503] CPU: 0 PID: 4503 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.278987][ T4503] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.280692][ T4503] Call trace: [ 52.281315][ T4503] dump_backtrace+0x0/0x458 [ 52.282170][ T4503] show_stack+0x2c/0x3c [ 52.282913][ T4503] __dump_stack+0x30/0x40 [ 52.283702][ T4503] dump_stack_lvl+0xf4/0x15c [ 52.284451][ T4503] dump_stack+0x1c/0x5c [ 52.285212][ T4503] should_fail+0x3bc/0x514 [ 52.285932][ T4503] __should_failslab+0xbc/0x10c [ 52.286802][ T4503] should_failslab+0x10/0x28 [ 52.287578][ T4503] slab_pre_alloc_hook+0x64/0xe8 [ 52.288379][ T4503] kmem_cache_alloc_trace+0x98/0x3ec [ 52.289280][ T4503] rand_initialize_disk+0x58/0xb8 [ 52.290149][ T4503] __alloc_disk_node+0x2a8/0x450 [ 52.290964][ T4503] __blk_mq_alloc_disk+0xe8/0x154 [ 52.291823][ T4503] loop_add+0x240/0x6e0 [ 52.292494][ T4503] loop_control_ioctl+0x130/0x4e0 [ 52.293327][ T4503] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.294230][ T4503] invoke_syscall+0x98/0x2b0 [ 52.295013][ T4503] el0_svc_common+0x138/0x258 [ 52.295840][ T4503] do_el0_svc+0x58/0x13c [ 52.296575][ T4503] el0_svc+0x78/0x1d0 [ 52.297245][ T4503] el0t_64_sync_handler+0xcc/0xe4 [ 52.298084][ T4503] el0t_64_sync+0x1a0/0x1a4 [ 52.314060][ T4508] FAULT_INJECTION: forcing a failure. [ 52.314060][ T4508] name failslab, interval 1, probability 0, space 0, times 0 [ 52.316419][ T4508] CPU: 0 PID: 4508 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.318038][ T4508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.319745][ T4508] Call trace: [ 52.320304][ T4508] dump_backtrace+0x0/0x458 [ 52.321060][ T4508] show_stack+0x2c/0x3c [ 52.321789][ T4508] __dump_stack+0x30/0x40 [ 52.322527][ T4508] dump_stack_lvl+0xf4/0x15c [ 52.323251][ T4508] dump_stack+0x1c/0x5c [ 52.323937][ T4508] should_fail+0x3bc/0x514 [ 52.324669][ T4508] __should_failslab+0xbc/0x10c [ 52.325501][ T4508] should_failslab+0x10/0x28 [ 52.326287][ T4508] slab_pre_alloc_hook+0x64/0xe8 [ 52.327162][ T4508] kmem_cache_alloc_trace+0x98/0x3ec [ 52.328100][ T4508] rand_initialize_disk+0x58/0xb8 [ 52.328954][ T4508] __alloc_disk_node+0x2a8/0x450 [ 52.329802][ T4508] __blk_mq_alloc_disk+0xe8/0x154 [ 52.330689][ T4508] loop_add+0x240/0x6e0 [ 52.331362][ T4508] loop_control_ioctl+0x130/0x4e0 [ 52.332244][ T4508] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.333096][ T4508] invoke_syscall+0x98/0x2b0 [ 52.333880][ T4508] el0_svc_common+0x138/0x258 [ 52.334656][ T4508] do_el0_svc+0x58/0x13c [ 52.335380][ T4508] el0_svc+0x78/0x1d0 [ 52.336044][ T4508] el0t_64_sync_handler+0xcc/0xe4 [ 52.336958][ T4508] el0t_64_sync+0x1a0/0x1a4 [ 52.359992][ T4513] FAULT_INJECTION: forcing a failure. [ 52.359992][ T4513] name failslab, interval 1, probability 0, space 0, times 0 [ 52.363400][ T4513] CPU: 1 PID: 4513 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.364805][ T4513] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.366462][ T4513] Call trace: [ 52.366989][ T4513] dump_backtrace+0x0/0x458 [ 52.367781][ T4513] show_stack+0x2c/0x3c [ 52.368527][ T4513] __dump_stack+0x30/0x40 [ 52.369280][ T4513] dump_stack_lvl+0xf4/0x15c [ 52.370044][ T4513] dump_stack+0x1c/0x5c [ 52.370702][ T4513] should_fail+0x3bc/0x514 [ 52.371440][ T4513] __should_failslab+0xbc/0x10c [ 52.372250][ T4513] should_failslab+0x10/0x28 [ 52.373022][ T4513] slab_pre_alloc_hook+0x64/0xe8 [ 52.373887][ T4513] kmem_cache_alloc+0x94/0x3d4 [ 52.374685][ T4513] __debug_object_init+0x700/0xa0c [ 52.375551][ T4513] debug_object_init+0x20/0x2c [ 52.376335][ T4513] init_timer_key+0x54/0x410 [ 52.377092][ T4513] blk_mq_init_allocated_queue+0x6a0/0x158c [ 52.377896][ T4513] __blk_mq_alloc_disk+0x88/0x154 [ 52.378805][ T4513] loop_add+0x240/0x6e0 [ 52.379584][ T4513] loop_control_ioctl+0x130/0x4e0 [ 52.380430][ T4513] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.381335][ T4513] invoke_syscall+0x98/0x2b0 [ 52.382147][ T4513] el0_svc_common+0x138/0x258 [ 52.382955][ T4513] do_el0_svc+0x58/0x13c [ 52.383653][ T4513] el0_svc+0x78/0x1d0 [ 52.384361][ T4513] el0t_64_sync_handler+0xcc/0xe4 [ 52.385223][ T4513] el0t_64_sync+0x1a0/0x1a4 [ 52.420275][ T4524] FAULT_INJECTION: forcing a failure. [ 52.420275][ T4524] name failslab, interval 1, probability 0, space 0, times 0 [ 52.424023][ T4524] CPU: 0 PID: 4524 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.425555][ T4524] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.427271][ T4524] Call trace: [ 52.427809][ T4524] dump_backtrace+0x0/0x458 [ 52.428571][ T4524] show_stack+0x2c/0x3c [ 52.429260][ T4524] __dump_stack+0x30/0x40 [ 52.430021][ T4524] dump_stack_lvl+0xf4/0x15c [ 52.430829][ T4524] dump_stack+0x1c/0x5c [ 52.431455][ T4524] should_fail+0x3bc/0x514 [ 52.432253][ T4524] __should_failslab+0xbc/0x10c [ 52.433131][ T4524] should_failslab+0x10/0x28 [ 52.433956][ T4524] slab_pre_alloc_hook+0x64/0xe8 [ 52.434784][ T4524] kmem_cache_alloc+0x94/0x3d4 [ 52.435582][ T4524] __debug_object_init+0x750/0xa0c [ 52.436446][ T4524] debug_object_init+0x20/0x2c [ 52.437295][ T4524] __init_work+0x58/0x68 [ 52.438028][ T4524] blk_mq_realloc_hw_ctxs+0x458/0x133c [ 52.438898][ T4524] blk_mq_init_allocated_queue+0x36c/0x158c [ 52.439829][ T4524] __blk_mq_alloc_disk+0x88/0x154 [ 52.440660][ T4524] loop_add+0x240/0x6e0 [ 52.441378][ T4524] loop_control_ioctl+0x130/0x4e0 [ 52.442259][ T4524] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.443081][ T4524] invoke_syscall+0x98/0x2b0 [ 52.443850][ T4524] el0_svc_common+0x138/0x258 [ 52.444609][ T4524] do_el0_svc+0x58/0x13c [ 52.445274][ T4524] el0_svc+0x78/0x1d0 [ 52.445927][ T4524] el0t_64_sync_handler+0xcc/0xe4 [ 52.446836][ T4524] el0t_64_sync+0x1a0/0x1a4 [ 52.476345][ T4530] FAULT_INJECTION: forcing a failure. [ 52.476345][ T4530] name failslab, interval 1, probability 0, space 0, times 0 [ 52.478645][ T4530] CPU: 1 PID: 4530 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.480193][ T4530] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.481985][ T4530] Call trace: [ 52.482498][ T4530] dump_backtrace+0x0/0x458 [ 52.483212][ T4530] show_stack+0x2c/0x3c [ 52.483880][ T4530] __dump_stack+0x30/0x40 [ 52.484548][ T4530] dump_stack_lvl+0xf4/0x15c [ 52.485251][ T4530] dump_stack+0x1c/0x5c [ 52.485939][ T4530] should_fail+0x3bc/0x514 [ 52.486649][ T4530] __should_failslab+0xbc/0x10c [ 52.487449][ T4530] should_failslab+0x10/0x28 [ 52.488213][ T4530] slab_pre_alloc_hook+0x64/0xe8 [ 52.489027][ T4530] kmem_cache_alloc_trace+0x98/0x3ec [ 52.489901][ T4530] device_add+0xbc/0xf90 [ 52.490662][ T4530] device_add_disk+0x2d0/0xacc [ 52.491498][ T4530] loop_add+0x510/0x6e0 [ 52.492194][ T4530] loop_control_ioctl+0x130/0x4e0 [ 52.493000][ T4530] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.493818][ T4530] invoke_syscall+0x98/0x2b0 [ 52.494601][ T4530] el0_svc_common+0x138/0x258 [ 52.495410][ T4530] do_el0_svc+0x58/0x13c [ 52.496061][ T4530] el0_svc+0x78/0x1d0 [ 52.496746][ T4530] el0t_64_sync_handler+0xcc/0xe4 [ 52.497599][ T4530] el0t_64_sync+0x1a0/0x1a4 [ 52.530639][ T4541] FAULT_INJECTION: forcing a failure. [ 52.530639][ T4541] name failslab, interval 1, probability 0, space 0, times 0 [ 52.533272][ T4541] CPU: 0 PID: 4541 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.534746][ T4541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.536553][ T4541] Call trace: [ 52.537099][ T4541] dump_backtrace+0x0/0x458 [ 52.537959][ T4541] show_stack+0x2c/0x3c [ 52.538684][ T4541] __dump_stack+0x30/0x40 [ 52.539404][ T4541] dump_stack_lvl+0xf4/0x15c [ 52.540208][ T4541] dump_stack+0x1c/0x5c [ 52.540911][ T4541] should_fail+0x3bc/0x514 [ 52.541643][ T4541] __should_failslab+0xbc/0x10c [ 52.542492][ T4541] should_failslab+0x10/0x28 [ 52.543353][ T4541] slab_pre_alloc_hook+0x64/0xe8 [ 52.544216][ T4541] kmem_cache_alloc_trace+0x98/0x3ec [ 52.545124][ T4541] device_add+0xbc/0xf90 [ 52.545834][ T4541] device_add_disk+0x2d0/0xacc [ 52.546657][ T4541] loop_add+0x510/0x6e0 [ 52.547379][ T4541] loop_control_ioctl+0x130/0x4e0 [ 52.548257][ T4541] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.549075][ T4541] invoke_syscall+0x98/0x2b0 [ 52.549870][ T4541] el0_svc_common+0x138/0x258 [ 52.550656][ T4541] do_el0_svc+0x58/0x13c [ 52.551373][ T4541] el0_svc+0x78/0x1d0 [ 52.552057][ T4541] el0t_64_sync_handler+0xcc/0xe4 [ 52.552838][ T4541] el0t_64_sync+0x1a0/0x1a4 [ 52.569559][ T4545] FAULT_INJECTION: forcing a failure. [ 52.569559][ T4545] name failslab, interval 1, probability 0, space 0, times 0 [ 52.571656][ T4545] CPU: 1 PID: 4545 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.573205][ T4545] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.575054][ T4545] Call trace: [ 52.575627][ T4545] dump_backtrace+0x0/0x458 [ 52.576397][ T4545] show_stack+0x2c/0x3c [ 52.577139][ T4545] __dump_stack+0x30/0x40 [ 52.577936][ T4545] dump_stack_lvl+0xf4/0x15c [ 52.578744][ T4545] dump_stack+0x1c/0x5c [ 52.579420][ T4545] should_fail+0x3bc/0x514 [ 52.580216][ T4545] __should_failslab+0xbc/0x10c [ 52.581054][ T4545] should_failslab+0x10/0x28 [ 52.581809][ T4545] slab_pre_alloc_hook+0x64/0xe8 [ 52.582759][ T4545] kmem_cache_alloc+0x94/0x3d4 [ 52.583552][ T4545] __debug_object_init+0x780/0xa0c [ 52.584413][ T4545] debug_object_init+0x20/0x2c [ 52.585210][ T4545] init_timer_key+0x54/0x410 [ 52.585997][ T4545] blk_stat_alloc_callback+0x164/0x1dc [ 52.586961][ T4545] blk_mq_init_allocated_queue+0x8c/0x158c [ 52.587959][ T4545] __blk_mq_alloc_disk+0x88/0x154 [ 52.588773][ T4545] loop_add+0x240/0x6e0 [ 52.589481][ T4545] loop_control_ioctl+0x130/0x4e0 [ 52.590338][ T4545] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.591184][ T4545] invoke_syscall+0x98/0x2b0 [ 52.591948][ T4545] el0_svc_common+0x138/0x258 [ 52.592857][ T4545] do_el0_svc+0x58/0x13c [ 52.593543][ T4545] el0_svc+0x78/0x1d0 [ 52.594250][ T4545] el0t_64_sync_handler+0xcc/0xe4 [ 52.595063][ T4545] el0t_64_sync+0x1a0/0x1a4 [ 52.596839][ T4075] Bluetooth: hci0: command 0x0409 tx timeout [ 52.621228][ T4553] FAULT_INJECTION: forcing a failure. [ 52.621228][ T4553] name failslab, interval 1, probability 0, space 0, times 0 [ 52.624965][ T4553] CPU: 1 PID: 4553 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.626524][ T4553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.628209][ T4553] Call trace: [ 52.628836][ T4553] dump_backtrace+0x0/0x458 [ 52.629615][ T4553] show_stack+0x2c/0x3c [ 52.630335][ T4553] __dump_stack+0x30/0x40 [ 52.631086][ T4553] dump_stack_lvl+0xf4/0x15c [ 52.631807][ T4553] dump_stack+0x1c/0x5c [ 52.632460][ T4553] should_fail+0x3bc/0x514 [ 52.633169][ T4553] __should_failslab+0xbc/0x10c [ 52.634017][ T4553] should_failslab+0x10/0x28 [ 52.634743][ T4553] slab_pre_alloc_hook+0x64/0xe8 [ 52.635567][ T4553] kmem_cache_alloc_trace+0x98/0x3ec [ 52.636471][ T4553] device_add+0xbc/0xf90 [ 52.637207][ T4553] device_add_disk+0x2d0/0xacc [ 52.638019][ T4553] loop_add+0x510/0x6e0 [ 52.638750][ T4553] loop_control_ioctl+0x130/0x4e0 [ 52.639602][ T4553] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.640446][ T4553] invoke_syscall+0x98/0x2b0 [ 52.641193][ T4553] el0_svc_common+0x138/0x258 [ 52.641990][ T4553] do_el0_svc+0x58/0x13c [ 52.642673][ T4553] el0_svc+0x78/0x1d0 [ 52.643332][ T4553] el0t_64_sync_handler+0xcc/0xe4 [ 52.644155][ T4553] el0t_64_sync+0x1a0/0x1a4 [ 52.668616][ T4561] FAULT_INJECTION: forcing a failure. [ 52.668616][ T4561] name failslab, interval 1, probability 0, space 0, times 0 [ 52.670939][ T4561] CPU: 0 PID: 4561 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.672625][ T4561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.674355][ T4561] Call trace: [ 52.674896][ T4561] dump_backtrace+0x0/0x458 [ 52.675658][ T4561] show_stack+0x2c/0x3c [ 52.676383][ T4561] __dump_stack+0x30/0x40 [ 52.677130][ T4561] dump_stack_lvl+0xf4/0x15c [ 52.677935][ T4561] dump_stack+0x1c/0x5c [ 52.678642][ T4561] should_fail+0x3bc/0x514 [ 52.679445][ T4561] __should_failslab+0xbc/0x10c [ 52.680305][ T4561] should_failslab+0x10/0x28 [ 52.681070][ T4561] slab_pre_alloc_hook+0x64/0xe8 [ 52.681900][ T4561] kmem_cache_alloc+0x94/0x3d4 [ 52.682784][ T4561] security_inode_alloc+0x38/0x11c [ 52.683650][ T4561] inode_init_always+0x670/0xa84 [ 52.684465][ T4561] new_inode_pseudo+0x7c/0x1fc [ 52.685333][ T4561] new_inode+0x38/0x174 [ 52.686115][ T4561] bdev_alloc+0x30/0x1f8 [ 52.686852][ T4561] __alloc_disk_node+0xbc/0x450 [ 52.687656][ T4561] __blk_mq_alloc_disk+0xe8/0x154 [ 52.688488][ T4561] loop_add+0x240/0x6e0 [ 52.689150][ T4561] loop_control_ioctl+0x130/0x4e0 [ 52.690024][ T4561] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.690796][ T4561] invoke_syscall+0x98/0x2b0 [ 52.691553][ T4561] el0_svc_common+0x138/0x258 [ 52.692351][ T4561] do_el0_svc+0x58/0x13c [ 52.693062][ T4561] el0_svc+0x78/0x1d0 [ 52.693764][ T4561] el0t_64_sync_handler+0xcc/0xe4 [ 52.694635][ T4561] el0t_64_sync+0x1a0/0x1a4 [ 52.712263][ T4568] FAULT_INJECTION: forcing a failure. [ 52.712263][ T4568] name failslab, interval 1, probability 0, space 0, times 0 [ 52.714434][ T4568] CPU: 0 PID: 4568 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.716010][ T4568] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.717682][ T4568] Call trace: [ 52.718254][ T4568] dump_backtrace+0x0/0x458 [ 52.719014][ T4568] show_stack+0x2c/0x3c [ 52.719673][ T4568] __dump_stack+0x30/0x40 [ 52.720441][ T4568] dump_stack_lvl+0xf4/0x15c [ 52.721233][ T4568] dump_stack+0x1c/0x5c [ 52.721918][ T4568] should_fail+0x3bc/0x514 [ 52.722787][ T4568] __should_failslab+0xbc/0x10c [ 52.723624][ T4568] should_failslab+0x10/0x28 [ 52.724455][ T4568] slab_pre_alloc_hook+0x64/0xe8 [ 52.725344][ T4568] kmem_cache_alloc_trace+0x98/0x3ec [ 52.726279][ T4568] rand_initialize_disk+0x58/0xb8 [ 52.727155][ T4568] __alloc_disk_node+0x2a8/0x450 [ 52.728000][ T4568] __blk_mq_alloc_disk+0xe8/0x154 [ 52.728853][ T4568] loop_add+0x240/0x6e0 [ 52.729613][ T4568] loop_control_ioctl+0x130/0x4e0 [ 52.730463][ T4568] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.731230][ T4568] invoke_syscall+0x98/0x2b0 [ 52.732004][ T4568] el0_svc_common+0x138/0x258 [ 52.732773][ T4568] do_el0_svc+0x58/0x13c [ 52.733501][ T4568] el0_svc+0x78/0x1d0 [ 52.734119][ T4568] el0t_64_sync_handler+0xcc/0xe4 [ 52.734917][ T4568] el0t_64_sync+0x1a0/0x1a4 [ 52.753767][ T4574] FAULT_INJECTION: forcing a failure. [ 52.753767][ T4574] name failslab, interval 1, probability 0, space 0, times 0 [ 52.755968][ T4574] CPU: 1 PID: 4574 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.757499][ T4574] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.759255][ T4574] Call trace: [ 52.759799][ T4574] dump_backtrace+0x0/0x458 [ 52.760568][ T4574] show_stack+0x2c/0x3c [ 52.761231][ T4574] __dump_stack+0x30/0x40 [ 52.761936][ T4574] dump_stack_lvl+0xf4/0x15c [ 52.762701][ T4574] dump_stack+0x1c/0x5c [ 52.763437][ T4574] should_fail+0x3bc/0x514 [ 52.764239][ T4574] __should_failslab+0xbc/0x10c [ 52.765043][ T4574] should_failslab+0x10/0x28 [ 52.765820][ T4574] slab_pre_alloc_hook+0x64/0xe8 [ 52.766637][ T4574] __kmalloc_track_caller+0x70/0x358 [ 52.767490][ T4574] kstrdup+0xe4/0x15c [ 52.768134][ T4574] kstrdup_const+0x54/0x6c [ 52.768857][ T4574] kvasprintf_const+0x120/0x2e4 [ 52.769608][ T4574] kobject_set_name_vargs+0xd8/0x1c8 [ 52.770485][ T4574] dev_set_name+0xe8/0x13c [ 52.771179][ T4574] device_add_disk+0x258/0xacc [ 52.771953][ T4574] loop_add+0x510/0x6e0 [ 52.772641][ T4574] loop_control_ioctl+0x130/0x4e0 [ 52.773501][ T4574] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.774362][ T4574] invoke_syscall+0x98/0x2b0 [ 52.775211][ T4574] el0_svc_common+0x138/0x258 [ 52.776014][ T4574] do_el0_svc+0x58/0x13c [ 52.776769][ T4574] el0_svc+0x78/0x1d0 [ 52.777476][ T4574] el0t_64_sync_handler+0xcc/0xe4 [ 52.778401][ T4574] el0t_64_sync+0x1a0/0x1a4 [ 52.797207][ T4580] FAULT_INJECTION: forcing a failure. [ 52.797207][ T4580] name failslab, interval 1, probability 0, space 0, times 0 [ 52.799319][ T4580] CPU: 1 PID: 4580 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.800723][ T4580] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.802409][ T4580] Call trace: [ 52.802995][ T4580] dump_backtrace+0x0/0x458 [ 52.803758][ T4580] show_stack+0x2c/0x3c [ 52.804459][ T4580] __dump_stack+0x30/0x40 [ 52.805250][ T4580] dump_stack_lvl+0xf4/0x15c [ 52.806027][ T4580] dump_stack+0x1c/0x5c [ 52.806723][ T4580] should_fail+0x3bc/0x514 [ 52.807488][ T4580] __should_failslab+0xbc/0x10c [ 52.808263][ T4580] should_failslab+0x10/0x28 [ 52.809054][ T4580] slab_pre_alloc_hook+0x64/0xe8 [ 52.809865][ T4580] kmem_cache_alloc_trace+0x98/0x3ec [ 52.810789][ T4580] device_add+0xbc/0xf90 [ 52.811582][ T4580] device_add_disk+0x2d0/0xacc [ 52.812446][ T4580] loop_add+0x510/0x6e0 [ 52.813149][ T4580] loop_control_ioctl+0x130/0x4e0 [ 52.813943][ T4580] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.814809][ T4580] invoke_syscall+0x98/0x2b0 [ 52.815535][ T4580] el0_svc_common+0x138/0x258 [ 52.816318][ T4580] do_el0_svc+0x58/0x13c [ 52.817007][ T4580] el0_svc+0x78/0x1d0 [ 52.817711][ T4580] el0t_64_sync_handler+0xcc/0xe4 [ 52.818518][ T4580] el0t_64_sync+0x1a0/0x1a4 [ 52.840971][ T4585] FAULT_INJECTION: forcing a failure. [ 52.840971][ T4585] name failslab, interval 1, probability 0, space 0, times 0 [ 52.843778][ T4585] CPU: 0 PID: 4585 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.845212][ T4585] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.846821][ T4585] Call trace: [ 52.847349][ T4585] dump_backtrace+0x0/0x458 [ 52.848127][ T4585] show_stack+0x2c/0x3c [ 52.848814][ T4585] __dump_stack+0x30/0x40 [ 52.849541][ T4585] dump_stack_lvl+0xf4/0x15c [ 52.850345][ T4585] dump_stack+0x1c/0x5c [ 52.850996][ T4585] should_fail+0x3bc/0x514 [ 52.851771][ T4585] __should_failslab+0xbc/0x10c [ 52.852570][ T4585] should_failslab+0x10/0x28 [ 52.853346][ T4585] slab_pre_alloc_hook+0x64/0xe8 [ 52.854202][ T4585] kmem_cache_alloc_trace+0x98/0x3ec [ 52.855192][ T4585] device_add+0xbc/0xf90 [ 52.855883][ T4585] device_add_disk+0x2d0/0xacc [ 52.856625][ T4585] loop_add+0x510/0x6e0 [ 52.857334][ T4585] loop_control_ioctl+0x130/0x4e0 [ 52.858229][ T4585] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.859133][ T4585] invoke_syscall+0x98/0x2b0 [ 52.859915][ T4585] el0_svc_common+0x138/0x258 [ 52.860703][ T4585] do_el0_svc+0x58/0x13c [ 52.861402][ T4585] el0_svc+0x78/0x1d0 [ 52.862060][ T4585] el0t_64_sync_handler+0xcc/0xe4 [ 52.862854][ T4585] el0t_64_sync+0x1a0/0x1a4 [ 52.888757][ T4594] FAULT_INJECTION: forcing a failure. [ 52.888757][ T4594] name failslab, interval 1, probability 0, space 0, times 0 [ 52.891030][ T4594] CPU: 1 PID: 4594 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.892568][ T4594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.894370][ T4594] Call trace: [ 52.894913][ T4594] dump_backtrace+0x0/0x458 [ 52.895673][ T4594] show_stack+0x2c/0x3c [ 52.896290][ T4594] __dump_stack+0x30/0x40 [ 52.897005][ T4594] dump_stack_lvl+0xf4/0x15c [ 52.897757][ T4594] dump_stack+0x1c/0x5c [ 52.898459][ T4594] should_fail+0x3bc/0x514 [ 52.899188][ T4594] __should_failslab+0xbc/0x10c [ 52.900048][ T4594] should_failslab+0x10/0x28 [ 52.900869][ T4594] slab_pre_alloc_hook+0x64/0xe8 [ 52.901720][ T4594] kmem_cache_alloc_trace+0x98/0x3ec [ 52.902640][ T4594] device_add+0xbc/0xf90 [ 52.903402][ T4594] device_add_disk+0x2d0/0xacc [ 52.904232][ T4594] loop_add+0x510/0x6e0 [ 52.904928][ T4594] loop_control_ioctl+0x130/0x4e0 [ 52.905807][ T4594] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.906636][ T4594] invoke_syscall+0x98/0x2b0 [ 52.907434][ T4594] el0_svc_common+0x138/0x258 [ 52.908227][ T4594] do_el0_svc+0x58/0x13c [ 52.908976][ T4594] el0_svc+0x78/0x1d0 [ 52.909635][ T4594] el0t_64_sync_handler+0xcc/0xe4 [ 52.910526][ T4594] el0t_64_sync+0x1a0/0x1a4 [ 52.936710][ T4600] FAULT_INJECTION: forcing a failure. [ 52.936710][ T4600] name failslab, interval 1, probability 0, space 0, times 0 [ 52.939086][ T4600] CPU: 1 PID: 4600 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.940532][ T4600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.942226][ T4600] Call trace: [ 52.942810][ T4600] dump_backtrace+0x0/0x458 [ 52.943553][ T4600] show_stack+0x2c/0x3c [ 52.944298][ T4600] __dump_stack+0x30/0x40 [ 52.944996][ T4600] dump_stack_lvl+0xf4/0x15c [ 52.945736][ T4600] dump_stack+0x1c/0x5c [ 52.946465][ T4600] should_fail+0x3bc/0x514 [ 52.947299][ T4600] __should_failslab+0xbc/0x10c [ 52.948138][ T4600] should_failslab+0x10/0x28 [ 52.948950][ T4600] slab_pre_alloc_hook+0x64/0xe8 [ 52.949771][ T4600] kmem_cache_alloc+0x94/0x3d4 [ 52.950575][ T4600] __debug_object_init+0x750/0xa0c [ 52.951466][ T4600] debug_object_init+0x20/0x2c [ 52.952377][ T4600] __init_work+0x58/0x68 [ 52.953143][ T4600] blk_mq_realloc_hw_ctxs+0x458/0x133c [ 52.954111][ T4600] blk_mq_init_allocated_queue+0x36c/0x158c [ 52.955157][ T4600] __blk_mq_alloc_disk+0x88/0x154 [ 52.955980][ T4600] loop_add+0x240/0x6e0 [ 52.956690][ T4600] loop_control_ioctl+0x130/0x4e0 [ 52.957559][ T4600] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.958353][ T4600] invoke_syscall+0x98/0x2b0 [ 52.959102][ T4600] el0_svc_common+0x138/0x258 [ 52.959904][ T4600] do_el0_svc+0x58/0x13c [ 52.960602][ T4600] el0_svc+0x78/0x1d0 [ 52.961267][ T4600] el0t_64_sync_handler+0xcc/0xe4 [ 52.962075][ T4600] el0t_64_sync+0x1a0/0x1a4 [ 52.977676][ T4606] FAULT_INJECTION: forcing a failure. [ 52.977676][ T4606] name failslab, interval 1, probability 0, space 0, times 0 [ 52.980122][ T4606] CPU: 1 PID: 4606 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.981611][ T4606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.983255][ T4606] Call trace: [ 52.983842][ T4606] dump_backtrace+0x0/0x458 [ 52.984617][ T4606] show_stack+0x2c/0x3c [ 52.985287][ T4606] __dump_stack+0x30/0x40 [ 52.986049][ T4606] dump_stack_lvl+0xf4/0x15c [ 52.986850][ T4606] dump_stack+0x1c/0x5c [ 52.987574][ T4606] should_fail+0x3bc/0x514 [ 52.988320][ T4606] __should_failslab+0xbc/0x10c [ 52.989195][ T4606] should_failslab+0x10/0x28 [ 52.989942][ T4606] slab_pre_alloc_hook+0x64/0xe8 [ 52.990754][ T4606] kmem_cache_alloc_trace+0x98/0x3ec [ 52.991585][ T4606] rand_initialize_disk+0x58/0xb8 [ 52.992449][ T4606] __alloc_disk_node+0x2a8/0x450 [ 52.993312][ T4606] __blk_mq_alloc_disk+0xe8/0x154 [ 52.994240][ T4606] loop_add+0x240/0x6e0 [ 52.994996][ T4606] loop_control_ioctl+0x130/0x4e0 [ 52.995862][ T4606] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.996813][ T4606] invoke_syscall+0x98/0x2b0 [ 52.997732][ T4606] el0_svc_common+0x138/0x258 [ 52.998517][ T4606] do_el0_svc+0x58/0x13c [ 52.999212][ T4606] el0_svc+0x78/0x1d0 [ 52.999897][ T4606] el0t_64_sync_handler+0xcc/0xe4 [ 53.000783][ T4606] el0t_64_sync+0x1a0/0x1a4 [ 53.024982][ T4613] FAULT_INJECTION: forcing a failure. [ 53.024982][ T4613] name failslab, interval 1, probability 0, space 0, times 0 [ 53.027184][ T4613] CPU: 1 PID: 4613 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.028629][ T4613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.030310][ T4613] Call trace: [ 53.030819][ T4613] dump_backtrace+0x0/0x458 [ 53.031561][ T4613] show_stack+0x2c/0x3c [ 53.032287][ T4613] __dump_stack+0x30/0x40 [ 53.033003][ T4613] dump_stack_lvl+0xf4/0x15c [ 53.033878][ T4613] dump_stack+0x1c/0x5c [ 53.034576][ T4613] should_fail+0x3bc/0x514 [ 53.035320][ T4613] __should_failslab+0xbc/0x10c [ 53.036101][ T4613] should_failslab+0x10/0x28 [ 53.036801][ T4613] slab_pre_alloc_hook+0x64/0xe8 [ 53.037657][ T4613] kmem_cache_alloc_trace+0x98/0x3ec [ 53.038526][ T4613] rand_initialize_disk+0x58/0xb8 [ 53.039375][ T4613] __alloc_disk_node+0x2a8/0x450 [ 53.040200][ T4613] __blk_mq_alloc_disk+0xe8/0x154 [ 53.041056][ T4613] loop_add+0x240/0x6e0 [ 53.041827][ T4613] loop_control_ioctl+0x130/0x4e0 [ 53.042694][ T4613] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.043555][ T4613] invoke_syscall+0x98/0x2b0 [ 53.044248][ T4613] el0_svc_common+0x138/0x258 [ 53.044964][ T4613] do_el0_svc+0x58/0x13c [ 53.045602][ T4613] el0_svc+0x78/0x1d0 [ 53.046244][ T4613] el0t_64_sync_handler+0xcc/0xe4 [ 53.046986][ T4613] el0t_64_sync+0x1a0/0x1a4 [ 53.073950][ T4619] FAULT_INJECTION: forcing a failure. [ 53.073950][ T4619] name failslab, interval 1, probability 0, space 0, times 0 [ 53.076071][ T4619] CPU: 1 PID: 4619 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.077693][ T4619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.079363][ T4619] Call trace: [ 53.079954][ T4619] dump_backtrace+0x0/0x458 [ 53.080735][ T4619] show_stack+0x2c/0x3c [ 53.081407][ T4619] __dump_stack+0x30/0x40 [ 53.082169][ T4619] dump_stack_lvl+0xf4/0x15c [ 53.082944][ T4619] dump_stack+0x1c/0x5c [ 53.083679][ T4619] should_fail+0x3bc/0x514 [ 53.084406][ T4619] __should_failslab+0xbc/0x10c [ 53.085283][ T4619] should_failslab+0x10/0x28 [ 53.086053][ T4619] slab_pre_alloc_hook+0x64/0xe8 [ 53.086864][ T4619] kmem_cache_alloc_trace+0x98/0x3ec [ 53.087753][ T4619] device_add+0xbc/0xf90 [ 53.088504][ T4619] device_add_disk+0x2d0/0xacc [ 53.089332][ T4619] loop_add+0x510/0x6e0 [ 53.090106][ T4619] loop_control_ioctl+0x130/0x4e0 [ 53.090944][ T4619] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.091812][ T4619] invoke_syscall+0x98/0x2b0 [ 53.092595][ T4619] el0_svc_common+0x138/0x258 [ 53.093432][ T4619] do_el0_svc+0x58/0x13c [ 53.094177][ T4619] el0_svc+0x78/0x1d0 [ 53.094827][ T4619] el0t_64_sync_handler+0xcc/0xe4 [ 53.095621][ T4619] el0t_64_sync+0x1a0/0x1a4 [ 53.114821][ T4625] FAULT_INJECTION: forcing a failure. [ 53.114821][ T4625] name failslab, interval 1, probability 0, space 0, times 0 [ 53.117073][ T4625] CPU: 0 PID: 4625 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.118527][ T4625] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.120228][ T4625] Call trace: [ 53.120800][ T4625] dump_backtrace+0x0/0x458 [ 53.121649][ T4625] show_stack+0x2c/0x3c [ 53.122367][ T4625] __dump_stack+0x30/0x40 [ 53.123053][ T4625] dump_stack_lvl+0xf4/0x15c [ 53.123837][ T4625] dump_stack+0x1c/0x5c [ 53.124524][ T4625] should_fail+0x3bc/0x514 [ 53.125252][ T4625] __should_failslab+0xbc/0x10c [ 53.126017][ T4625] should_failslab+0x10/0x28 [ 53.126884][ T4625] slab_pre_alloc_hook+0x64/0xe8 [ 53.127717][ T4625] kmem_cache_alloc+0x94/0x3d4 [ 53.128588][ T4625] __debug_object_init+0x7c8/0xa0c [ 53.129459][ T4625] debug_object_init+0x20/0x2c [ 53.130228][ T4625] __percpu_counter_init+0x10c/0x26c [ 53.131191][ T4625] blkg_rwstat_init+0x104/0x2b8 [ 53.132003][ T4625] throtl_pd_alloc+0xf0/0x4ec [ 53.132773][ T4625] blkcg_activate_policy+0x204/0xa8c [ 53.133597][ T4625] blk_throtl_init+0x308/0x3ec [ 53.134365][ T4625] blkcg_init_queue+0x3cc/0x484 [ 53.135043][ T4625] blk_alloc_queue+0x3cc/0x4a0 [ 53.135881][ T4625] __blk_mq_alloc_disk+0x5c/0x154 [ 53.136746][ T4625] loop_add+0x240/0x6e0 [ 53.137434][ T4625] loop_control_ioctl+0x130/0x4e0 [ 53.138253][ T4625] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.139093][ T4625] invoke_syscall+0x98/0x2b0 [ 53.139897][ T4625] el0_svc_common+0x138/0x258 [ 53.140647][ T4625] do_el0_svc+0x58/0x13c [ 53.141356][ T4625] el0_svc+0x78/0x1d0 [ 53.142058][ T4625] el0t_64_sync_handler+0xcc/0xe4 [ 53.142934][ T4625] el0t_64_sync+0x1a0/0x1a4 [ 53.164405][ T4633] FAULT_INJECTION: forcing a failure. [ 53.164405][ T4633] name failslab, interval 1, probability 0, space 0, times 0 [ 53.166865][ T4633] CPU: 1 PID: 4633 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.168374][ T4633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.170187][ T4633] Call trace: [ 53.170758][ T4633] dump_backtrace+0x0/0x458 [ 53.171536][ T4633] show_stack+0x2c/0x3c [ 53.172229][ T4633] __dump_stack+0x30/0x40 [ 53.172984][ T4633] dump_stack_lvl+0xf4/0x15c [ 53.173814][ T4633] dump_stack+0x1c/0x5c [ 53.174490][ T4633] should_fail+0x3bc/0x514 [ 53.175237][ T4633] __should_failslab+0xbc/0x10c [ 53.176065][ T4633] should_failslab+0x10/0x28 [ 53.176847][ T4633] slab_pre_alloc_hook+0x64/0xe8 [ 53.177714][ T4633] kmem_cache_alloc_trace+0x98/0x3ec [ 53.178640][ T4633] rand_initialize_disk+0x58/0xb8 [ 53.179542][ T4633] __alloc_disk_node+0x2a8/0x450 [ 53.180388][ T4633] __blk_mq_alloc_disk+0xe8/0x154 [ 53.181334][ T4633] loop_add+0x240/0x6e0 [ 53.182051][ T4633] loop_control_ioctl+0x130/0x4e0 [ 53.182908][ T4633] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.183745][ T4633] invoke_syscall+0x98/0x2b0 [ 53.184569][ T4633] el0_svc_common+0x138/0x258 [ 53.185418][ T4633] do_el0_svc+0x58/0x13c [ 53.186152][ T4633] el0_svc+0x78/0x1d0 [ 53.186812][ T4633] el0t_64_sync_handler+0xcc/0xe4 [ 53.187647][ T4633] el0t_64_sync+0x1a0/0x1a4 [ 53.212680][ T4639] FAULT_INJECTION: forcing a failure. [ 53.212680][ T4639] name failslab, interval 1, probability 0, space 0, times 0 [ 53.214939][ T4639] CPU: 1 PID: 4639 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.216464][ T4639] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.218127][ T4639] Call trace: [ 53.218652][ T4639] dump_backtrace+0x0/0x458 [ 53.219453][ T4639] show_stack+0x2c/0x3c [ 53.220162][ T4639] __dump_stack+0x30/0x40 [ 53.220919][ T4639] dump_stack_lvl+0xf4/0x15c [ 53.221739][ T4639] dump_stack+0x1c/0x5c [ 53.222467][ T4639] should_fail+0x3bc/0x514 [ 53.223255][ T4639] __should_failslab+0xbc/0x10c [ 53.224089][ T4639] should_failslab+0x10/0x28 [ 53.224822][ T4639] slab_pre_alloc_hook+0x64/0xe8 [ 53.225673][ T4639] kmem_cache_alloc_trace+0x98/0x3ec [ 53.226582][ T4639] device_add+0xbc/0xf90 [ 53.227313][ T4639] device_add_disk+0x2d0/0xacc [ 53.228166][ T4639] loop_add+0x510/0x6e0 [ 53.228788][ T4639] loop_control_ioctl+0x130/0x4e0 [ 53.229605][ T4639] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.230511][ T4639] invoke_syscall+0x98/0x2b0 [ 53.231285][ T4639] el0_svc_common+0x138/0x258 [ 53.232139][ T4639] do_el0_svc+0x58/0x13c [ 53.232875][ T4639] el0_svc+0x78/0x1d0 [ 53.233597][ T4639] el0t_64_sync_handler+0xcc/0xe4 [ 53.234419][ T4639] el0t_64_sync+0x1a0/0x1a4 [ 53.250658][ T4645] FAULT_INJECTION: forcing a failure. [ 53.250658][ T4645] name failslab, interval 1, probability 0, space 0, times 0 [ 53.253070][ T4645] CPU: 1 PID: 4645 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.254622][ T4645] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.256328][ T4645] Call trace: [ 53.256887][ T4645] dump_backtrace+0x0/0x458 [ 53.257806][ T4645] show_stack+0x2c/0x3c [ 53.258541][ T4645] __dump_stack+0x30/0x40 [ 53.259310][ T4645] dump_stack_lvl+0xf4/0x15c [ 53.260103][ T4645] dump_stack+0x1c/0x5c [ 53.260800][ T4645] should_fail+0x3bc/0x514 [ 53.261539][ T4645] __should_failslab+0xbc/0x10c [ 53.262383][ T4645] should_failslab+0x10/0x28 [ 53.263159][ T4645] slab_pre_alloc_hook+0x64/0xe8 [ 53.263995][ T4645] kmem_cache_alloc_trace+0x98/0x3ec [ 53.264858][ T4645] device_add+0xbc/0xf90 [ 53.265585][ T4645] device_add_disk+0x2d0/0xacc [ 53.266362][ T4645] loop_add+0x510/0x6e0 [ 53.267030][ T4645] loop_control_ioctl+0x130/0x4e0 [ 53.267873][ T4645] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.268711][ T4645] invoke_syscall+0x98/0x2b0 [ 53.269489][ T4645] el0_svc_common+0x138/0x258 [ 53.270340][ T4645] do_el0_svc+0x58/0x13c [ 53.271156][ T4645] el0_svc+0x78/0x1d0 [ 53.271814][ T4645] el0t_64_sync_handler+0xcc/0xe4 [ 53.272603][ T4645] el0t_64_sync+0x1a0/0x1a4 [ 53.285367][ T4652] FAULT_INJECTION: forcing a failure. [ 53.285367][ T4652] name failslab, interval 1, probability 0, space 0, times 0 [ 53.287741][ T4652] CPU: 1 PID: 4652 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.289361][ T4652] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.291279][ T4652] Call trace: [ 53.291819][ T4652] dump_backtrace+0x0/0x458 [ 53.292568][ T4652] show_stack+0x2c/0x3c [ 53.293260][ T4652] __dump_stack+0x30/0x40 [ 53.294068][ T4652] dump_stack_lvl+0xf4/0x15c [ 53.294941][ T4652] dump_stack+0x1c/0x5c [ 53.295678][ T4652] should_fail+0x3bc/0x514 [ 53.296379][ T4652] __should_failslab+0xbc/0x10c [ 53.297197][ T4652] should_failslab+0x10/0x28 [ 53.298079][ T4652] slab_pre_alloc_hook+0x64/0xe8 [ 53.298928][ T4652] kmem_cache_alloc_trace+0x98/0x3ec [ 53.299847][ T4652] device_add+0xbc/0xf90 [ 53.300550][ T4652] device_add_disk+0x2d0/0xacc [ 53.301346][ T4652] loop_add+0x510/0x6e0 [ 53.302052][ T4652] loop_control_ioctl+0x130/0x4e0 [ 53.302954][ T4652] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.303930][ T4652] invoke_syscall+0x98/0x2b0 [ 53.304740][ T4652] el0_svc_common+0x138/0x258 [ 53.305536][ T4652] do_el0_svc+0x58/0x13c [ 53.306260][ T4652] el0_svc+0x78/0x1d0 [ 53.306927][ T4652] el0t_64_sync_handler+0xcc/0xe4 [ 53.307750][ T4652] el0t_64_sync+0x1a0/0x1a4 [ 53.323825][ T4657] FAULT_INJECTION: forcing a failure. [ 53.323825][ T4657] name failslab, interval 1, probability 0, space 0, times 0 [ 53.326091][ T4657] CPU: 1 PID: 4657 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.327669][ T4657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.329338][ T4657] Call trace: [ 53.329914][ T4657] dump_backtrace+0x0/0x458 [ 53.330648][ T4657] show_stack+0x2c/0x3c [ 53.331318][ T4657] __dump_stack+0x30/0x40 [ 53.332036][ T4657] dump_stack_lvl+0xf4/0x15c [ 53.332864][ T4657] dump_stack+0x1c/0x5c [ 53.333568][ T4657] should_fail+0x3bc/0x514 [ 53.334348][ T4657] __should_failslab+0xbc/0x10c [ 53.335208][ T4657] should_failslab+0x10/0x28 [ 53.336018][ T4657] slab_pre_alloc_hook+0x64/0xe8 [ 53.336866][ T4657] __kmalloc_track_caller+0x70/0x358 [ 53.337827][ T4657] kstrdup+0xe4/0x15c [ 53.338553][ T4657] kstrdup_const+0x54/0x6c [ 53.339342][ T4657] kvasprintf_const+0x120/0x2e4 [ 53.340193][ T4657] kobject_set_name_vargs+0xd8/0x1c8 [ 53.341045][ T4657] dev_set_name+0xe8/0x13c [ 53.341777][ T4657] device_add_disk+0x258/0xacc [ 53.342587][ T4657] loop_add+0x510/0x6e0 [ 53.343285][ T4657] loop_control_ioctl+0x130/0x4e0 [ 53.344141][ T4657] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.345024][ T4657] invoke_syscall+0x98/0x2b0 [ 53.345824][ T4657] el0_svc_common+0x138/0x258 [ 53.346685][ T4657] do_el0_svc+0x58/0x13c [ 53.347413][ T4657] el0_svc+0x78/0x1d0 [ 53.348096][ T4657] el0t_64_sync_handler+0xcc/0xe4 [ 53.348895][ T4657] el0t_64_sync+0x1a0/0x1a4 [ 53.362535][ T4662] FAULT_INJECTION: forcing a failure. [ 53.362535][ T4662] name failslab, interval 1, probability 0, space 0, times 0 [ 53.364654][ T4662] CPU: 1 PID: 4662 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.366159][ T4662] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.367913][ T4662] Call trace: [ 53.368464][ T4662] dump_backtrace+0x0/0x458 [ 53.369185][ T4662] show_stack+0x2c/0x3c [ 53.369826][ T4662] __dump_stack+0x30/0x40 [ 53.370566][ T4662] dump_stack_lvl+0xf4/0x15c [ 53.371309][ T4662] dump_stack+0x1c/0x5c [ 53.371960][ T4662] should_fail+0x3bc/0x514 [ 53.372713][ T4662] __should_failslab+0xbc/0x10c [ 53.373569][ T4662] should_failslab+0x10/0x28 [ 53.374298][ T4662] slab_pre_alloc_hook+0x64/0xe8 [ 53.375139][ T4662] kmem_cache_alloc_node_trace+0x9c/0x424 [ 53.376051][ T4662] iolatency_pd_alloc+0xac/0x164 [ 53.376879][ T4662] blkcg_activate_policy+0x204/0xa8c [ 53.377745][ T4662] blk_iolatency_init+0x22c/0x430 [ 53.378535][ T4662] blkcg_init_queue+0x3f0/0x484 [ 53.379281][ T4662] blk_alloc_queue+0x3cc/0x4a0 [ 53.380015][ T4662] __blk_mq_alloc_disk+0x5c/0x154 [ 53.380777][ T4662] loop_add+0x240/0x6e0 [ 53.381414][ T4662] loop_control_ioctl+0x130/0x4e0 [ 53.382177][ T4662] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.382989][ T4662] invoke_syscall+0x98/0x2b0 [ 53.383717][ T4662] el0_svc_common+0x138/0x258 [ 53.384473][ T4662] do_el0_svc+0x58/0x13c [ 53.385133][ T4662] el0_svc+0x78/0x1d0 [ 53.385810][ T4662] el0t_64_sync_handler+0xcc/0xe4 [ 53.386660][ T4662] el0t_64_sync+0x1a0/0x1a4 [ 53.406517][ T4668] FAULT_INJECTION: forcing a failure. [ 53.406517][ T4668] name failslab, interval 1, probability 0, space 0, times 0 [ 53.408893][ T4668] CPU: 1 PID: 4668 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.410338][ T4668] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.412106][ T4668] Call trace: [ 53.412642][ T4668] dump_backtrace+0x0/0x458 [ 53.413341][ T4668] show_stack+0x2c/0x3c [ 53.414041][ T4668] __dump_stack+0x30/0x40 [ 53.414815][ T4668] dump_stack_lvl+0xf4/0x15c [ 53.415569][ T4668] dump_stack+0x1c/0x5c [ 53.416304][ T4668] should_fail+0x3bc/0x514 [ 53.417035][ T4668] __should_failslab+0xbc/0x10c [ 53.417887][ T4668] should_failslab+0x10/0x28 [ 53.418662][ T4668] slab_pre_alloc_hook+0x64/0xe8 [ 53.419471][ T4668] __kmalloc_track_caller+0x70/0x358 [ 53.420333][ T4668] kstrdup+0xe4/0x15c [ 53.421002][ T4668] kstrdup_const+0x54/0x6c [ 53.421710][ T4668] kvasprintf_const+0x120/0x2e4 [ 53.422469][ T4668] kobject_set_name_vargs+0xd8/0x1c8 [ 53.423364][ T4668] dev_set_name+0xe8/0x13c [ 53.424125][ T4668] device_add_disk+0x258/0xacc [ 53.424923][ T4668] loop_add+0x510/0x6e0 [ 53.425632][ T4668] loop_control_ioctl+0x130/0x4e0 [ 53.426472][ T4668] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.427350][ T4668] invoke_syscall+0x98/0x2b0 [ 53.428087][ T4668] el0_svc_common+0x138/0x258 [ 53.428846][ T4668] do_el0_svc+0x58/0x13c [ 53.429578][ T4668] el0_svc+0x78/0x1d0 [ 53.430219][ T4668] el0t_64_sync_handler+0xcc/0xe4 [ 53.431043][ T4668] el0t_64_sync+0x1a0/0x1a4 [ 53.458300][ T4677] FAULT_INJECTION: forcing a failure. [ 53.458300][ T4677] name failslab, interval 1, probability 0, space 0, times 0 [ 53.460463][ T4677] CPU: 0 PID: 4677 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.462033][ T4677] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.463717][ T4677] Call trace: [ 53.464271][ T4677] dump_backtrace+0x0/0x458 [ 53.465051][ T4677] show_stack+0x2c/0x3c [ 53.465749][ T4677] __dump_stack+0x30/0x40 [ 53.466478][ T4677] dump_stack_lvl+0xf4/0x15c [ 53.467258][ T4677] dump_stack+0x1c/0x5c [ 53.467972][ T4677] should_fail+0x3bc/0x514 [ 53.468700][ T4677] __should_failslab+0xbc/0x10c [ 53.469519][ T4677] should_failslab+0x10/0x28 [ 53.470325][ T4677] slab_pre_alloc_hook+0x64/0xe8 [ 53.471165][ T4677] kmem_cache_alloc_trace+0x98/0x3ec [ 53.472056][ T4677] blk_iolatency_init+0x64/0x430 [ 53.472985][ T4677] blkcg_init_queue+0x3f0/0x484 [ 53.473849][ T4677] blk_alloc_queue+0x3cc/0x4a0 [ 53.474647][ T4677] __blk_mq_alloc_disk+0x5c/0x154 [ 53.475498][ T4677] loop_add+0x240/0x6e0 [ 53.476204][ T4677] loop_control_ioctl+0x130/0x4e0 [ 53.476995][ T4677] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.477826][ T4677] invoke_syscall+0x98/0x2b0 [ 53.478553][ T4677] el0_svc_common+0x138/0x258 [ 53.479399][ T4677] do_el0_svc+0x58/0x13c [ 53.480126][ T4677] el0_svc+0x78/0x1d0 [ 53.480751][ T4677] el0t_64_sync_handler+0xcc/0xe4 [ 53.481578][ T4677] el0t_64_sync+0x1a0/0x1a4 [ 53.499213][ T4679] FAULT_INJECTION: forcing a failure. [ 53.499213][ T4679] name failslab, interval 1, probability 0, space 0, times 0 [ 53.501336][ T4679] CPU: 0 PID: 4679 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.502814][ T4679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.504397][ T4679] Call trace: [ 53.504947][ T4679] dump_backtrace+0x0/0x458 [ 53.505687][ T4679] show_stack+0x2c/0x3c [ 53.506367][ T4679] __dump_stack+0x30/0x40 [ 53.507088][ T4679] dump_stack_lvl+0xf4/0x15c [ 53.507903][ T4679] dump_stack+0x1c/0x5c [ 53.508642][ T4679] should_fail+0x3bc/0x514 [ 53.509407][ T4679] __should_failslab+0xbc/0x10c [ 53.510282][ T4679] should_failslab+0x10/0x28 [ 53.511034][ T4679] slab_pre_alloc_hook+0x64/0xe8 [ 53.511913][ T4679] kmem_cache_alloc_node_trace+0x9c/0x424 [ 53.512899][ T4679] iolatency_pd_alloc+0xac/0x164 [ 53.513745][ T4679] blkcg_activate_policy+0x204/0xa8c [ 53.514634][ T4679] blk_iolatency_init+0x22c/0x430 [ 53.515468][ T4679] blkcg_init_queue+0x3f0/0x484 [ 53.516306][ T4679] blk_alloc_queue+0x3cc/0x4a0 [ 53.517132][ T4679] __blk_mq_alloc_disk+0x5c/0x154 [ 53.517992][ T4679] loop_add+0x240/0x6e0 [ 53.518662][ T4679] loop_control_ioctl+0x130/0x4e0 [ 53.519500][ T4679] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.520352][ T4679] invoke_syscall+0x98/0x2b0 [ 53.521146][ T4679] el0_svc_common+0x138/0x258 [ 53.521898][ T4679] do_el0_svc+0x58/0x13c [ 53.522670][ T4679] el0_svc+0x78/0x1d0 [ 53.523337][ T4679] el0t_64_sync_handler+0xcc/0xe4 [ 53.524187][ T4679] el0t_64_sync+0x1a0/0x1a4 [ 53.547644][ T4681] FAULT_INJECTION: forcing a failure. [ 53.547644][ T4681] name failslab, interval 1, probability 0, space 0, times 0 [ 53.549807][ T4681] CPU: 0 PID: 4681 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.551330][ T4681] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.553042][ T4681] Call trace: [ 53.553611][ T4681] dump_backtrace+0x0/0x458 [ 53.554407][ T4681] show_stack+0x2c/0x3c [ 53.555101][ T4681] __dump_stack+0x30/0x40 [ 53.555835][ T4681] dump_stack_lvl+0xf4/0x15c [ 53.556593][ T4681] dump_stack+0x1c/0x5c [ 53.557296][ T4681] should_fail+0x3bc/0x514 [ 53.558024][ T4681] __should_failslab+0xbc/0x10c [ 53.558829][ T4681] should_failslab+0x10/0x28 [ 53.559669][ T4681] slab_pre_alloc_hook+0x64/0xe8 [ 53.560622][ T4681] kmem_cache_alloc_trace+0x98/0x3ec [ 53.561585][ T4681] device_add+0xbc/0xf90 [ 53.562360][ T4681] device_add_disk+0x2d0/0xacc [ 53.563198][ T4681] loop_add+0x510/0x6e0 [ 53.563894][ T4681] loop_control_ioctl+0x130/0x4e0 [ 53.564723][ T4681] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.565538][ T4681] invoke_syscall+0x98/0x2b0 [ 53.566326][ T4681] el0_svc_common+0x138/0x258 [ 53.567101][ T4681] do_el0_svc+0x58/0x13c [ 53.567864][ T4681] el0_svc+0x78/0x1d0 [ 53.568598][ T4681] el0t_64_sync_handler+0xcc/0xe4 [ 53.569422][ T4681] el0t_64_sync+0x1a0/0x1a4 [ 53.579213][ T4683] FAULT_INJECTION: forcing a failure. [ 53.579213][ T4683] name failslab, interval 1, probability 0, space 0, times 0 [ 53.581539][ T4683] CPU: 1 PID: 4683 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.583050][ T4683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.584696][ T4683] Call trace: [ 53.585220][ T4683] dump_backtrace+0x0/0x458 [ 53.585972][ T4683] show_stack+0x2c/0x3c [ 53.586623][ T4683] __dump_stack+0x30/0x40 [ 53.587469][ T4683] dump_stack_lvl+0xf4/0x15c [ 53.588302][ T4683] dump_stack+0x1c/0x5c [ 53.589041][ T4683] should_fail+0x3bc/0x514 [ 53.589858][ T4683] __should_failslab+0xbc/0x10c [ 53.590713][ T4683] should_failslab+0x10/0x28 [ 53.591477][ T4683] slab_pre_alloc_hook+0x64/0xe8 [ 53.592278][ T4683] kmem_cache_alloc_trace+0x98/0x3ec [ 53.593172][ T4683] rand_initialize_disk+0x58/0xb8 [ 53.594016][ T4683] __alloc_disk_node+0x2a8/0x450 [ 53.594815][ T4683] __blk_mq_alloc_disk+0xe8/0x154 [ 53.595628][ T4683] loop_add+0x240/0x6e0 [ 53.596332][ T4683] loop_control_ioctl+0x130/0x4e0 [ 53.597180][ T4683] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.598008][ T4683] invoke_syscall+0x98/0x2b0 [ 53.598783][ T4683] el0_svc_common+0x138/0x258 [ 53.599569][ T4683] do_el0_svc+0x58/0x13c [ 53.600279][ T4683] el0_svc+0x78/0x1d0 [ 53.600983][ T4683] el0t_64_sync_handler+0xcc/0xe4 [ 53.601911][ T4683] el0t_64_sync+0x1a0/0x1a4 [ 53.617260][ T4685] FAULT_INJECTION: forcing a failure. [ 53.617260][ T4685] name failslab, interval 1, probability 0, space 0, times 0 [ 53.619531][ T4685] CPU: 0 PID: 4685 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.621031][ T4685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.622711][ T4685] Call trace: [ 53.623248][ T4685] dump_backtrace+0x0/0x458 [ 53.624064][ T4685] show_stack+0x2c/0x3c [ 53.624763][ T4685] __dump_stack+0x30/0x40 [ 53.625551][ T4685] dump_stack_lvl+0xf4/0x15c [ 53.626395][ T4685] dump_stack+0x1c/0x5c [ 53.627079][ T4685] should_fail+0x3bc/0x514 [ 53.627770][ T4685] __should_failslab+0xbc/0x10c [ 53.628538][ T4685] should_failslab+0x10/0x28 [ 53.629365][ T4685] slab_pre_alloc_hook+0x64/0xe8 [ 53.630205][ T4685] __kmalloc_track_caller+0x70/0x358 [ 53.631171][ T4685] kstrdup+0xe4/0x15c [ 53.632049][ T4685] kstrdup_const+0x54/0x6c [ 53.632774][ T4685] kvasprintf_const+0x120/0x2e4 [ 53.633581][ T4685] kobject_set_name_vargs+0xd8/0x1c8 [ 53.634485][ T4685] dev_set_name+0xe8/0x13c [ 53.635173][ T4685] device_add_disk+0x258/0xacc [ 53.635923][ T4685] loop_add+0x510/0x6e0 [ 53.636662][ T4685] loop_control_ioctl+0x130/0x4e0 [ 53.637475][ T4685] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.638314][ T4685] invoke_syscall+0x98/0x2b0 [ 53.639061][ T4685] el0_svc_common+0x138/0x258 [ 53.639838][ T4685] do_el0_svc+0x58/0x13c [ 53.640528][ T4685] el0_svc+0x78/0x1d0 [ 53.641151][ T4685] el0t_64_sync_handler+0xcc/0xe4 [ 53.642049][ T4685] el0t_64_sync+0x1a0/0x1a4 [ 53.653822][ T4687] FAULT_INJECTION: forcing a failure. [ 53.653822][ T4687] name failslab, interval 1, probability 0, space 0, times 0 [ 53.655920][ T4687] CPU: 0 PID: 4687 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.657547][ T4687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.659251][ T4687] Call trace: [ 53.659810][ T4687] dump_backtrace+0x0/0x458 [ 53.660524][ T4687] show_stack+0x2c/0x3c [ 53.661262][ T4687] __dump_stack+0x30/0x40 [ 53.662009][ T4687] dump_stack_lvl+0xf4/0x15c [ 53.662837][ T4687] dump_stack+0x1c/0x5c [ 53.663515][ T4687] should_fail+0x3bc/0x514 [ 53.664290][ T4687] __should_failslab+0xbc/0x10c [ 53.665115][ T4687] should_failslab+0x10/0x28 [ 53.665878][ T4687] slab_pre_alloc_hook+0x64/0xe8 [ 53.666707][ T4687] kmem_cache_alloc_trace+0x98/0x3ec [ 53.667584][ T4687] device_add+0xbc/0xf90 [ 53.668300][ T4687] device_add_disk+0x2d0/0xacc [ 53.669071][ T4687] loop_add+0x510/0x6e0 [ 53.669817][ T4687] loop_control_ioctl+0x130/0x4e0 [ 53.670613][ T4687] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.671388][ T4687] invoke_syscall+0x98/0x2b0 [ 53.672131][ T4687] el0_svc_common+0x138/0x258 [ 53.672896][ T4687] do_el0_svc+0x58/0x13c [ 53.673580][ T4687] el0_svc+0x78/0x1d0 [ 53.674218][ T4687] el0t_64_sync_handler+0xcc/0xe4 [ 53.675082][ T4687] el0t_64_sync+0x1a0/0x1a4 [ 53.686713][ T4689] FAULT_INJECTION: forcing a failure. [ 53.686713][ T4689] name failslab, interval 1, probability 0, space 0, times 0 [ 53.688970][ T4689] CPU: 0 PID: 4689 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.690563][ T4689] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.692228][ T4689] Call trace: [ 53.692822][ T4689] dump_backtrace+0x0/0x458 [ 53.693678][ T4689] show_stack+0x2c/0x3c [ 53.694385][ T4689] __dump_stack+0x30/0x40 [ 53.695086][ T4689] dump_stack_lvl+0xf4/0x15c [ 53.695909][ T4689] dump_stack+0x1c/0x5c [ 53.696669][ T4689] should_fail+0x3bc/0x514 [ 53.697413][ T4689] __should_failslab+0xbc/0x10c [ 53.698271][ T4689] should_failslab+0x10/0x28 [ 53.699102][ T4689] slab_pre_alloc_hook+0x64/0xe8 [ 53.699964][ T4689] kmem_cache_alloc_trace+0x98/0x3ec [ 53.700891][ T4689] device_add+0xbc/0xf90 [ 53.701605][ T4689] device_add_disk+0x2d0/0xacc [ 53.702385][ T4689] loop_add+0x510/0x6e0 [ 53.703059][ T4689] loop_control_ioctl+0x130/0x4e0 [ 53.703890][ T4689] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.704680][ T4689] invoke_syscall+0x98/0x2b0 [ 53.705446][ T4689] el0_svc_common+0x138/0x258 [ 53.706306][ T4689] do_el0_svc+0x58/0x13c [ 53.707012][ T4689] el0_svc+0x78/0x1d0 [ 53.707696][ T4689] el0t_64_sync_handler+0xcc/0xe4 [ 53.708507][ T4689] el0t_64_sync+0x1a0/0x1a4 [ 53.718695][ T4691] FAULT_INJECTION: forcing a failure. [ 53.718695][ T4691] name failslab, interval 1, probability 0, space 0, times 0 [ 53.720839][ T4691] CPU: 0 PID: 4691 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.722287][ T4691] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.723941][ T4691] Call trace: [ 53.724458][ T4691] dump_backtrace+0x0/0x458 [ 53.725287][ T4691] show_stack+0x2c/0x3c [ 53.726033][ T4691] __dump_stack+0x30/0x40 [ 53.726850][ T4691] dump_stack_lvl+0xf4/0x15c [ 53.727672][ T4691] dump_stack+0x1c/0x5c [ 53.728401][ T4691] should_fail+0x3bc/0x514 [ 53.729152][ T4691] __should_failslab+0xbc/0x10c [ 53.730017][ T4691] should_failslab+0x10/0x28 [ 53.730797][ T4691] slab_pre_alloc_hook+0x64/0xe8 [ 53.731638][ T4691] __kmalloc_track_caller+0x70/0x358 [ 53.732484][ T4691] kstrdup+0xe4/0x15c [ 53.733182][ T4691] kstrdup_const+0x54/0x6c [ 53.733913][ T4691] kvasprintf_const+0x120/0x2e4 [ 53.734717][ T4691] kobject_set_name_vargs+0xd8/0x1c8 [ 53.735587][ T4691] dev_set_name+0xe8/0x13c [ 53.736317][ T4691] device_add_disk+0x258/0xacc [ 53.737123][ T4691] loop_add+0x510/0x6e0 [ 53.737740][ T4691] loop_control_ioctl+0x130/0x4e0 [ 53.738628][ T4691] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.739499][ T4691] invoke_syscall+0x98/0x2b0 [ 53.740292][ T4691] el0_svc_common+0x138/0x258 [ 53.741061][ T4691] do_el0_svc+0x58/0x13c [ 53.741753][ T4691] el0_svc+0x78/0x1d0 [ 53.742469][ T4691] el0t_64_sync_handler+0xcc/0xe4 [ 53.743307][ T4691] el0t_64_sync+0x1a0/0x1a4 [ 53.754502][ T4693] FAULT_INJECTION: forcing a failure. [ 53.754502][ T4693] name failslab, interval 1, probability 0, space 0, times 0 [ 53.756741][ T4693] CPU: 0 PID: 4693 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.758120][ T4693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.759669][ T4693] Call trace: [ 53.760160][ T4693] dump_backtrace+0x0/0x458 [ 53.760862][ T4693] show_stack+0x2c/0x3c [ 53.761538][ T4693] __dump_stack+0x30/0x40 [ 53.762272][ T4693] dump_stack_lvl+0xf4/0x15c [ 53.763033][ T4693] dump_stack+0x1c/0x5c [ 53.763734][ T4693] should_fail+0x3bc/0x514 [ 53.764470][ T4693] __should_failslab+0xbc/0x10c [ 53.765359][ T4693] should_failslab+0x10/0x28 [ 53.766232][ T4693] slab_pre_alloc_hook+0x64/0xe8 [ 53.767093][ T4693] kmem_cache_alloc+0x94/0x3d4 [ 53.767857][ T4693] security_inode_alloc+0x38/0x11c [ 53.768776][ T4693] inode_init_always+0x670/0xa84 [ 53.769610][ T4693] new_inode_pseudo+0x7c/0x1fc [ 53.770509][ T4693] new_inode+0x38/0x174 [ 53.771267][ T4693] bdev_alloc+0x30/0x1f8 [ 53.772009][ T4693] __alloc_disk_node+0xbc/0x450 [ 53.772817][ T4693] __blk_mq_alloc_disk+0xe8/0x154 [ 53.773661][ T4693] loop_add+0x240/0x6e0 [ 53.774457][ T4693] loop_control_ioctl+0x130/0x4e0 [ 53.775328][ T4693] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.776282][ T4693] invoke_syscall+0x98/0x2b0 [ 53.777062][ T4693] el0_svc_common+0x138/0x258 [ 53.777875][ T4693] do_el0_svc+0x58/0x13c [ 53.778592][ T4693] el0_svc+0x78/0x1d0 [ 53.779324][ T4693] el0t_64_sync_handler+0xcc/0xe4 [ 53.780170][ T4693] el0t_64_sync+0x1a0/0x1a4 [ 53.793191][ T4695] FAULT_INJECTION: forcing a failure. [ 53.793191][ T4695] name failslab, interval 1, probability 0, space 0, times 0 [ 53.795522][ T4695] CPU: 1 PID: 4695 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.797108][ T4695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.798843][ T4695] Call trace: [ 53.799379][ T4695] dump_backtrace+0x0/0x458 [ 53.800175][ T4695] show_stack+0x2c/0x3c [ 53.800845][ T4695] __dump_stack+0x30/0x40 [ 53.801562][ T4695] dump_stack_lvl+0xf4/0x15c [ 53.802340][ T4695] dump_stack+0x1c/0x5c [ 53.803044][ T4695] should_fail+0x3bc/0x514 [ 53.803781][ T4695] __should_failslab+0xbc/0x10c [ 53.804650][ T4695] should_failslab+0x10/0x28 [ 53.805413][ T4695] slab_pre_alloc_hook+0x64/0xe8 [ 53.806269][ T4695] kmem_cache_alloc_trace+0x98/0x3ec [ 53.807238][ T4695] device_add+0xbc/0xf90 [ 53.807959][ T4695] device_add_disk+0x2d0/0xacc [ 53.808705][ T4695] loop_add+0x510/0x6e0 [ 53.809381][ T4695] loop_control_ioctl+0x130/0x4e0 [ 53.810241][ T4695] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.811132][ T4695] invoke_syscall+0x98/0x2b0 [ 53.811857][ T4695] el0_svc_common+0x138/0x258 [ 53.812645][ T4695] do_el0_svc+0x58/0x13c [ 53.813342][ T4695] el0_svc+0x78/0x1d0 [ 53.814059][ T4695] el0t_64_sync_handler+0xcc/0xe4 [ 53.814912][ T4695] el0t_64_sync+0x1a0/0x1a4 [ 53.825993][ T4697] FAULT_INJECTION: forcing a failure. [ 53.825993][ T4697] name failslab, interval 1, probability 0, space 0, times 0 [ 53.828135][ T4697] CPU: 1 PID: 4697 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.829807][ T4697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.831415][ T4697] Call trace: [ 53.831982][ T4697] dump_backtrace+0x0/0x458 [ 53.832716][ T4697] show_stack+0x2c/0x3c [ 53.833416][ T4697] __dump_stack+0x30/0x40 [ 53.834199][ T4697] dump_stack_lvl+0xf4/0x15c [ 53.834932][ T4697] dump_stack+0x1c/0x5c [ 53.835625][ T4697] should_fail+0x3bc/0x514 [ 53.836384][ T4697] __should_failslab+0xbc/0x10c [ 53.837162][ T4697] should_failslab+0x10/0x28 [ 53.837914][ T4697] slab_pre_alloc_hook+0x64/0xe8 [ 53.838634][ T4697] __kmalloc_track_caller+0x70/0x358 [ 53.839445][ T4697] kstrdup+0xe4/0x15c [ 53.840072][ T4697] kstrdup_const+0x54/0x6c [ 53.840807][ T4697] kvasprintf_const+0x120/0x2e4 [ 53.841636][ T4697] kobject_set_name_vargs+0xd8/0x1c8 [ 53.842536][ T4697] dev_set_name+0xe8/0x13c [ 53.843316][ T4697] device_add_disk+0x258/0xacc [ 53.844117][ T4697] loop_add+0x510/0x6e0 [ 53.844827][ T4697] loop_control_ioctl+0x130/0x4e0 [ 53.845698][ T4697] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.846525][ T4697] invoke_syscall+0x98/0x2b0 [ 53.847349][ T4697] el0_svc_common+0x138/0x258 [ 53.848108][ T4697] do_el0_svc+0x58/0x13c [ 53.848781][ T4697] el0_svc+0x78/0x1d0 [ 53.849382][ T4697] el0t_64_sync_handler+0xcc/0xe4 [ 53.850262][ T4697] el0t_64_sync+0x1a0/0x1a4 [ 53.860398][ T4699] FAULT_INJECTION: forcing a failure. [ 53.860398][ T4699] name failslab, interval 1, probability 0, space 0, times 0 [ 53.864443][ T4699] CPU: 1 PID: 4699 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.865948][ T4699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.867690][ T4699] Call trace: [ 53.868239][ T4699] dump_backtrace+0x0/0x458 [ 53.868984][ T4699] show_stack+0x2c/0x3c [ 53.869671][ T4699] __dump_stack+0x30/0x40 [ 53.870398][ T4699] dump_stack_lvl+0xf4/0x15c [ 53.871182][ T4699] dump_stack+0x1c/0x5c [ 53.871895][ T4699] should_fail+0x3bc/0x514 [ 53.872625][ T4699] __should_failslab+0xbc/0x10c [ 53.873417][ T4699] should_failslab+0x10/0x28 [ 53.874194][ T4699] slab_pre_alloc_hook+0x64/0xe8 [ 53.874994][ T4699] kmem_cache_alloc_trace+0x98/0x3ec [ 53.875839][ T4699] blk_iolatency_init+0x64/0x430 [ 53.876703][ T4699] blkcg_init_queue+0x3f0/0x484 [ 53.877522][ T4699] blk_alloc_queue+0x3cc/0x4a0 [ 53.878313][ T4699] __blk_mq_alloc_disk+0x5c/0x154 [ 53.879097][ T4699] loop_add+0x240/0x6e0 [ 53.879755][ T4699] loop_control_ioctl+0x130/0x4e0 [ 53.880562][ T4699] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.881411][ T4699] invoke_syscall+0x98/0x2b0 [ 53.882164][ T4699] el0_svc_common+0x138/0x258 [ 53.882919][ T4699] do_el0_svc+0x58/0x13c [ 53.883626][ T4699] el0_svc+0x78/0x1d0 [ 53.884301][ T4699] el0t_64_sync_handler+0xcc/0xe4 [ 53.885133][ T4699] el0t_64_sync+0x1a0/0x1a4 [ 53.897507][ T4701] FAULT_INJECTION: forcing a failure. [ 53.897507][ T4701] name failslab, interval 1, probability 0, space 0, times 0 [ 53.899755][ T4701] CPU: 0 PID: 4701 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.901373][ T4701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.903184][ T4701] Call trace: [ 53.903715][ T4701] dump_backtrace+0x0/0x458 [ 53.904537][ T4701] show_stack+0x2c/0x3c [ 53.905210][ T4701] __dump_stack+0x30/0x40 [ 53.905981][ T4701] dump_stack_lvl+0xf4/0x15c [ 53.906741][ T4701] dump_stack+0x1c/0x5c [ 53.907464][ T4701] should_fail+0x3bc/0x514 [ 53.908213][ T4701] __should_failslab+0xbc/0x10c [ 53.909096][ T4701] should_failslab+0x10/0x28 [ 53.909941][ T4701] slab_pre_alloc_hook+0x64/0xe8 [ 53.910785][ T4701] kmem_cache_alloc_trace+0x98/0x3ec [ 53.911673][ T4701] device_add+0xbc/0xf90 [ 53.912404][ T4701] device_add_disk+0x2d0/0xacc [ 53.913284][ T4701] loop_add+0x510/0x6e0 [ 53.913994][ T4701] loop_control_ioctl+0x130/0x4e0 [ 53.914828][ T4701] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.915647][ T4701] invoke_syscall+0x98/0x2b0 [ 53.916377][ T4701] el0_svc_common+0x138/0x258 [ 53.917153][ T4701] do_el0_svc+0x58/0x13c [ 53.917873][ T4701] el0_svc+0x78/0x1d0 [ 53.918501][ T4701] el0t_64_sync_handler+0xcc/0xe4 [ 53.919346][ T4701] el0t_64_sync+0x1a0/0x1a4 [ 53.930924][ T4703] FAULT_INJECTION: forcing a failure. [ 53.930924][ T4703] name failslab, interval 1, probability 0, space 0, times 0 [ 53.933369][ T4703] CPU: 0 PID: 4703 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.934877][ T4703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.936524][ T4703] Call trace: [ 53.937026][ T4703] dump_backtrace+0x0/0x458 [ 53.937769][ T4703] show_stack+0x2c/0x3c [ 53.938451][ T4703] __dump_stack+0x30/0x40 [ 53.939142][ T4703] dump_stack_lvl+0xf4/0x15c [ 53.939874][ T4703] dump_stack+0x1c/0x5c [ 53.940516][ T4703] should_fail+0x3bc/0x514 [ 53.941233][ T4703] __should_failslab+0xbc/0x10c [ 53.942063][ T4703] should_failslab+0x10/0x28 [ 53.942842][ T4703] slab_pre_alloc_hook+0x64/0xe8 [ 53.943664][ T4703] kmem_cache_alloc_trace+0x98/0x3ec [ 53.944567][ T4703] rand_initialize_disk+0x58/0xb8 [ 53.945389][ T4703] __alloc_disk_node+0x2a8/0x450 [ 53.946274][ T4703] __blk_mq_alloc_disk+0xe8/0x154 [ 53.947161][ T4703] loop_add+0x240/0x6e0 [ 53.947952][ T4703] loop_control_ioctl+0x130/0x4e0 [ 53.948824][ T4703] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.949682][ T4703] invoke_syscall+0x98/0x2b0 [ 53.950532][ T4703] el0_svc_common+0x138/0x258 [ 53.951364][ T4703] do_el0_svc+0x58/0x13c [ 53.952173][ T4703] el0_svc+0x78/0x1d0 [ 53.952859][ T4703] el0t_64_sync_handler+0xcc/0xe4 [ 53.953691][ T4703] el0t_64_sync+0x1a0/0x1a4 [ 53.966969][ T4705] FAULT_INJECTION: forcing a failure. [ 53.966969][ T4705] name failslab, interval 1, probability 0, space 0, times 0 [ 53.969316][ T4705] CPU: 1 PID: 4705 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.970863][ T4705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.972603][ T4705] Call trace: [ 53.973137][ T4705] dump_backtrace+0x0/0x458 [ 53.973897][ T4705] show_stack+0x2c/0x3c [ 53.974639][ T4705] __dump_stack+0x30/0x40 [ 53.975343][ T4705] dump_stack_lvl+0xf4/0x15c [ 53.976122][ T4705] dump_stack+0x1c/0x5c [ 53.976799][ T4705] should_fail+0x3bc/0x514 [ 53.977551][ T4705] __should_failslab+0xbc/0x10c [ 53.978379][ T4705] should_failslab+0x10/0x28 [ 53.979175][ T4705] slab_pre_alloc_hook+0x64/0xe8 [ 53.979964][ T4705] kmem_cache_alloc+0x94/0x3d4 [ 53.980798][ T4705] security_inode_alloc+0x38/0x11c [ 53.981705][ T4705] inode_init_always+0x670/0xa84 [ 53.982544][ T4705] new_inode_pseudo+0x7c/0x1fc [ 53.983358][ T4705] new_inode+0x38/0x174 [ 53.984071][ T4705] bdev_alloc+0x30/0x1f8 [ 53.984791][ T4705] __alloc_disk_node+0xbc/0x450 [ 53.985558][ T4705] __blk_mq_alloc_disk+0xe8/0x154 [ 53.986411][ T4705] loop_add+0x240/0x6e0 [ 53.987154][ T4705] loop_control_ioctl+0x130/0x4e0 [ 53.988005][ T4705] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.988862][ T4705] invoke_syscall+0x98/0x2b0 [ 53.989652][ T4705] el0_svc_common+0x138/0x258 [ 53.990422][ T4705] do_el0_svc+0x58/0x13c [ 53.991136][ T4705] el0_svc+0x78/0x1d0 [ 53.991773][ T4705] el0t_64_sync_handler+0xcc/0xe4 [ 53.992630][ T4705] el0t_64_sync+0x1a0/0x1a4 [ 54.003377][ T4707] FAULT_INJECTION: forcing a failure. [ 54.003377][ T4707] name failslab, interval 1, probability 0, space 0, times 0 [ 54.005599][ T4707] CPU: 0 PID: 4707 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.007131][ T4707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.008839][ T4707] Call trace: [ 54.009408][ T4707] dump_backtrace+0x0/0x458 [ 54.010167][ T4707] show_stack+0x2c/0x3c [ 54.010904][ T4707] __dump_stack+0x30/0x40 [ 54.011681][ T4707] dump_stack_lvl+0xf4/0x15c [ 54.012464][ T4707] dump_stack+0x1c/0x5c [ 54.013184][ T4707] should_fail+0x3bc/0x514 [ 54.013907][ T4707] __should_failslab+0xbc/0x10c [ 54.014748][ T4707] should_failslab+0x10/0x28 [ 54.015507][ T4707] slab_pre_alloc_hook+0x64/0xe8 [ 54.016382][ T4707] kmem_cache_alloc_node_trace+0x9c/0x424 [ 54.017359][ T4707] iolatency_pd_alloc+0xac/0x164 [ 54.018245][ T4707] blkcg_activate_policy+0x204/0xa8c [ 54.019145][ T4707] blk_iolatency_init+0x22c/0x430 [ 54.019999][ T4707] blkcg_init_queue+0x3f0/0x484 [ 54.020758][ T4707] blk_alloc_queue+0x3cc/0x4a0 [ 54.021519][ T4707] __blk_mq_alloc_disk+0x5c/0x154 [ 54.022390][ T4707] loop_add+0x240/0x6e0 [ 54.023126][ T4707] loop_control_ioctl+0x130/0x4e0 [ 54.023946][ T4707] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.024810][ T4707] invoke_syscall+0x98/0x2b0 [ 54.025596][ T4707] el0_svc_common+0x138/0x258 [ 54.026375][ T4707] do_el0_svc+0x58/0x13c [ 54.027145][ T4707] el0_svc+0x78/0x1d0 [ 54.027742][ T4707] el0t_64_sync_handler+0xcc/0xe4 [ 54.028626][ T4707] el0t_64_sync+0x1a0/0x1a4 [ 54.045354][ T4709] FAULT_INJECTION: forcing a failure. [ 54.045354][ T4709] name failslab, interval 1, probability 0, space 0, times 0 [ 54.047515][ T4709] CPU: 1 PID: 4709 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.049079][ T4709] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.050806][ T4709] Call trace: [ 54.051368][ T4709] dump_backtrace+0x0/0x458 [ 54.052111][ T4709] show_stack+0x2c/0x3c [ 54.052792][ T4709] __dump_stack+0x30/0x40 [ 54.053559][ T4709] dump_stack_lvl+0xf4/0x15c [ 54.054317][ T4709] dump_stack+0x1c/0x5c [ 54.055038][ T4709] should_fail+0x3bc/0x514 [ 54.055762][ T4709] __should_failslab+0xbc/0x10c [ 54.056559][ T4709] should_failslab+0x10/0x28 [ 54.057349][ T4709] slab_pre_alloc_hook+0x64/0xe8 [ 54.058216][ T4709] kmem_cache_alloc_trace+0x98/0x3ec [ 54.059098][ T4709] device_add+0xbc/0xf90 [ 54.059824][ T4709] device_add_disk+0x2d0/0xacc [ 54.060603][ T4709] loop_add+0x510/0x6e0 [ 54.061321][ T4709] loop_control_ioctl+0x130/0x4e0 [ 54.062137][ T4709] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.062972][ T4709] invoke_syscall+0x98/0x2b0 [ 54.063680][ T4709] el0_svc_common+0x138/0x258 [ 54.064410][ T4709] do_el0_svc+0x58/0x13c [ 54.065108][ T4709] el0_svc+0x78/0x1d0 [ 54.065790][ T4709] el0t_64_sync_handler+0xcc/0xe4 [ 54.066713][ T4709] el0t_64_sync+0x1a0/0x1a4 [ 54.076946][ T4711] FAULT_INJECTION: forcing a failure. [ 54.076946][ T4711] name failslab, interval 1, probability 0, space 0, times 0 [ 54.079198][ T4711] CPU: 0 PID: 4711 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.080698][ T4711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.082375][ T4711] Call trace: [ 54.082918][ T4711] dump_backtrace+0x0/0x458 [ 54.083722][ T4711] show_stack+0x2c/0x3c [ 54.084490][ T4711] __dump_stack+0x30/0x40 [ 54.085242][ T4711] dump_stack_lvl+0xf4/0x15c [ 54.086047][ T4711] dump_stack+0x1c/0x5c [ 54.086755][ T4711] should_fail+0x3bc/0x514 [ 54.087520][ T4711] __should_failslab+0xbc/0x10c [ 54.088418][ T4711] should_failslab+0x10/0x28 [ 54.089185][ T4711] slab_pre_alloc_hook+0x64/0xe8 [ 54.090007][ T4711] kmem_cache_alloc+0x94/0x3d4 [ 54.090885][ T4711] __debug_object_init+0x7c8/0xa0c [ 54.091766][ T4711] debug_object_init+0x20/0x2c [ 54.092607][ T4711] __percpu_counter_init+0x10c/0x26c [ 54.093575][ T4711] blkg_rwstat_init+0x1c4/0x2b8 [ 54.094471][ T4711] throtl_pd_alloc+0xf0/0x4ec [ 54.095260][ T4711] blkcg_activate_policy+0x204/0xa8c [ 54.096158][ T4711] blk_throtl_init+0x308/0x3ec [ 54.096985][ T4711] blkcg_init_queue+0x3cc/0x484 [ 54.097831][ T4711] blk_alloc_queue+0x3cc/0x4a0 [ 54.098698][ T4711] __blk_mq_alloc_disk+0x5c/0x154 [ 54.099591][ T4711] loop_add+0x240/0x6e0 [ 54.100305][ T4711] loop_control_ioctl+0x130/0x4e0 [ 54.101109][ T4711] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.101982][ T4711] invoke_syscall+0x98/0x2b0 [ 54.102776][ T4711] el0_svc_common+0x138/0x258 [ 54.103559][ T4711] do_el0_svc+0x58/0x13c [ 54.104263][ T4711] el0_svc+0x78/0x1d0 [ 54.104974][ T4711] el0t_64_sync_handler+0xcc/0xe4 [ 54.105833][ T4711] el0t_64_sync+0x1a0/0x1a4 [ 54.119099][ T4713] FAULT_INJECTION: forcing a failure. [ 54.119099][ T4713] name failslab, interval 1, probability 0, space 0, times 0 [ 54.121488][ T4713] CPU: 1 PID: 4713 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.122997][ T4713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.124713][ T4713] Call trace: [ 54.125279][ T4713] dump_backtrace+0x0/0x458 [ 54.126041][ T4713] show_stack+0x2c/0x3c [ 54.126700][ T4713] __dump_stack+0x30/0x40 [ 54.127465][ T4713] dump_stack_lvl+0xf4/0x15c [ 54.128249][ T4713] dump_stack+0x1c/0x5c [ 54.128957][ T4713] should_fail+0x3bc/0x514 [ 54.129676][ T4713] __should_failslab+0xbc/0x10c [ 54.130468][ T4713] should_failslab+0x10/0x28 [ 54.131214][ T4713] slab_pre_alloc_hook+0x64/0xe8 [ 54.132001][ T4713] kmem_cache_alloc_trace+0x98/0x3ec [ 54.132852][ T4713] device_add+0xbc/0xf90 [ 54.133530][ T4713] device_add_disk+0x2d0/0xacc [ 54.134297][ T4713] loop_add+0x510/0x6e0 [ 54.134985][ T4713] loop_control_ioctl+0x130/0x4e0 [ 54.135802][ T4713] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.136589][ T4713] invoke_syscall+0x98/0x2b0 [ 54.137309][ T4713] el0_svc_common+0x138/0x258 [ 54.138089][ T4713] do_el0_svc+0x58/0x13c [ 54.138782][ T4713] el0_svc+0x78/0x1d0 [ 54.139425][ T4713] el0t_64_sync_handler+0xcc/0xe4 [ 54.140229][ T4713] el0t_64_sync+0x1a0/0x1a4 [ 54.151271][ T4715] FAULT_INJECTION: forcing a failure. [ 54.151271][ T4715] name failslab, interval 1, probability 0, space 0, times 0 [ 54.153562][ T4715] CPU: 0 PID: 4715 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.155130][ T4715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.156975][ T4715] Call trace: [ 54.157545][ T4715] dump_backtrace+0x0/0x458 [ 54.158336][ T4715] show_stack+0x2c/0x3c [ 54.159031][ T4715] __dump_stack+0x30/0x40 [ 54.159732][ T4715] dump_stack_lvl+0xf4/0x15c [ 54.160475][ T4715] dump_stack+0x1c/0x5c [ 54.161136][ T4715] should_fail+0x3bc/0x514 [ 54.161840][ T4715] __should_failslab+0xbc/0x10c [ 54.162656][ T4715] should_failslab+0x10/0x28 [ 54.163436][ T4715] slab_pre_alloc_hook+0x64/0xe8 [ 54.164280][ T4715] kmem_cache_alloc_node_trace+0x9c/0x424 [ 54.165230][ T4715] iolatency_pd_alloc+0xac/0x164 [ 54.166049][ T4715] blkcg_activate_policy+0x204/0xa8c [ 54.166927][ T4715] blk_iolatency_init+0x22c/0x430 [ 54.167727][ T4715] blkcg_init_queue+0x3f0/0x484 [ 54.168442][ T4715] blk_alloc_queue+0x3cc/0x4a0 [ 54.169220][ T4715] __blk_mq_alloc_disk+0x5c/0x154 [ 54.170047][ T4715] loop_add+0x240/0x6e0 [ 54.170688][ T4715] loop_control_ioctl+0x130/0x4e0 [ 54.171508][ T4715] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.172281][ T4715] invoke_syscall+0x98/0x2b0 [ 54.173055][ T4715] el0_svc_common+0x138/0x258 [ 54.173891][ T4715] do_el0_svc+0x58/0x13c [ 54.174634][ T4715] el0_svc+0x78/0x1d0 [ 54.175341][ T4715] el0t_64_sync_handler+0xcc/0xe4 [ 54.176184][ T4715] el0t_64_sync+0x1a0/0x1a4 [ 54.191892][ T4717] FAULT_INJECTION: forcing a failure. [ 54.191892][ T4717] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 54.194471][ T4717] CPU: 1 PID: 4717 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.195833][ T4717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.197546][ T4717] Call trace: [ 54.198063][ T4717] dump_backtrace+0x0/0x458 [ 54.198825][ T4717] show_stack+0x2c/0x3c [ 54.199585][ T4717] __dump_stack+0x30/0x40 [ 54.200315][ T4717] dump_stack_lvl+0xf4/0x15c [ 54.201102][ T4717] dump_stack+0x1c/0x5c [ 54.201787][ T4717] should_fail+0x3bc/0x514 [ 54.202522][ T4717] should_fail_alloc_page+0x74/0xa8 [ 54.203442][ T4717] prepare_alloc_pages+0x160/0x45c [ 54.204384][ T4717] __alloc_pages+0x108/0x470 [ 54.205122][ T4717] alloc_pages+0x34c/0x5c0 [ 54.205860][ T4717] new_slab+0xe0/0x544 [ 54.206520][ T4717] ___slab_alloc+0x6b4/0xd8c [ 54.207354][ T4717] __slab_alloc+0x68/0xc0 [ 54.208111][ T4717] kmem_cache_alloc_trace+0x2b8/0x3ec [ 54.209007][ T4717] rand_initialize_disk+0x58/0xb8 [ 54.209843][ T4717] __alloc_disk_node+0x2a8/0x450 [ 54.210676][ T4717] __blk_mq_alloc_disk+0xe8/0x154 [ 54.211498][ T4717] loop_add+0x240/0x6e0 [ 54.212246][ T4717] loop_control_ioctl+0x130/0x4e0 [ 54.213082][ T4717] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.213859][ T4717] invoke_syscall+0x98/0x2b0 [ 54.214610][ T4717] el0_svc_common+0x138/0x258 [ 54.215508][ T4717] do_el0_svc+0x58/0x13c [ 54.216315][ T4717] el0_svc+0x78/0x1d0 [ 54.217005][ T4717] el0t_64_sync_handler+0xcc/0xe4 [ 54.217903][ T4717] el0t_64_sync+0x1a0/0x1a4 [ 54.230478][ T4719] FAULT_INJECTION: forcing a failure. [ 54.230478][ T4719] name failslab, interval 1, probability 0, space 0, times 0 [ 54.232559][ T4719] CPU: 0 PID: 4719 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.234207][ T4719] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.236007][ T4719] Call trace: [ 54.236540][ T4719] dump_backtrace+0x0/0x458 [ 54.237273][ T4719] show_stack+0x2c/0x3c [ 54.237965][ T4719] __dump_stack+0x30/0x40 [ 54.238686][ T4719] dump_stack_lvl+0xf4/0x15c [ 54.239443][ T4719] dump_stack+0x1c/0x5c [ 54.240027][ T4719] should_fail+0x3bc/0x514 [ 54.240774][ T4719] __should_failslab+0xbc/0x10c [ 54.241604][ T4719] should_failslab+0x10/0x28 [ 54.242372][ T4719] slab_pre_alloc_hook+0x64/0xe8 [ 54.243180][ T4719] kmem_cache_alloc_node_trace+0x9c/0x424 [ 54.244080][ T4719] iolatency_pd_alloc+0xac/0x164 [ 54.244957][ T4719] blkcg_activate_policy+0x204/0xa8c [ 54.245853][ T4719] blk_iolatency_init+0x22c/0x430 [ 54.246620][ T4719] blkcg_init_queue+0x3f0/0x484 [ 54.247370][ T4719] blk_alloc_queue+0x3cc/0x4a0 [ 54.248168][ T4719] __blk_mq_alloc_disk+0x5c/0x154 [ 54.248990][ T4719] loop_add+0x240/0x6e0 [ 54.249594][ T4719] loop_control_ioctl+0x130/0x4e0 [ 54.250425][ T4719] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.251225][ T4719] invoke_syscall+0x98/0x2b0 [ 54.251993][ T4719] el0_svc_common+0x138/0x258 [ 54.252656][ T4719] do_el0_svc+0x58/0x13c [ 54.253304][ T4719] el0_svc+0x78/0x1d0 [ 54.253910][ T4719] el0t_64_sync_handler+0xcc/0xe4 [ 54.254705][ T4719] el0t_64_sync+0x1a0/0x1a4 [ 54.269272][ T4721] FAULT_INJECTION: forcing a failure. [ 54.269272][ T4721] name failslab, interval 1, probability 0, space 0, times 0 [ 54.271463][ T4721] CPU: 0 PID: 4721 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.273056][ T4721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.274819][ T4721] Call trace: [ 54.275380][ T4721] dump_backtrace+0x0/0x458 [ 54.276206][ T4721] show_stack+0x2c/0x3c [ 54.276951][ T4721] __dump_stack+0x30/0x40 [ 54.277641][ T4721] dump_stack_lvl+0xf4/0x15c [ 54.278408][ T4721] dump_stack+0x1c/0x5c [ 54.279130][ T4721] should_fail+0x3bc/0x514 [ 54.279851][ T4721] __should_failslab+0xbc/0x10c [ 54.280612][ T4721] should_failslab+0x10/0x28 [ 54.281368][ T4721] slab_pre_alloc_hook+0x64/0xe8 [ 54.282186][ T4721] kmem_cache_alloc_node_trace+0x9c/0x424 [ 54.283211][ T4721] iolatency_pd_alloc+0xac/0x164 [ 54.284148][ T4721] blkcg_activate_policy+0x204/0xa8c [ 54.285079][ T4721] blk_iolatency_init+0x22c/0x430 [ 54.285965][ T4721] blkcg_init_queue+0x3f0/0x484 [ 54.286787][ T4721] blk_alloc_queue+0x3cc/0x4a0 [ 54.287585][ T4721] __blk_mq_alloc_disk+0x5c/0x154 [ 54.288414][ T4721] loop_add+0x240/0x6e0 [ 54.289146][ T4721] loop_control_ioctl+0x130/0x4e0 [ 54.290033][ T4721] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.290871][ T4721] invoke_syscall+0x98/0x2b0 [ 54.291627][ T4721] el0_svc_common+0x138/0x258 [ 54.292372][ T4721] do_el0_svc+0x58/0x13c [ 54.293114][ T4721] el0_svc+0x78/0x1d0 [ 54.293816][ T4721] el0t_64_sync_handler+0xcc/0xe4 [ 54.294615][ T4721] el0t_64_sync+0x1a0/0x1a4 [ 54.306647][ T4723] FAULT_INJECTION: forcing a failure. [ 54.306647][ T4723] name failslab, interval 1, probability 0, space 0, times 0 [ 54.309130][ T4723] CPU: 1 PID: 4723 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.310591][ T4723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.312263][ T4723] Call trace: [ 54.312774][ T4723] dump_backtrace+0x0/0x458 [ 54.313494][ T4723] show_stack+0x2c/0x3c [ 54.314146][ T4723] __dump_stack+0x30/0x40 [ 54.314865][ T4723] dump_stack_lvl+0xf4/0x15c [ 54.315596][ T4723] dump_stack+0x1c/0x5c [ 54.316241][ T4723] should_fail+0x3bc/0x514 [ 54.316949][ T4723] __should_failslab+0xbc/0x10c [ 54.317739][ T4723] should_failslab+0x10/0x28 [ 54.318479][ T4723] slab_pre_alloc_hook+0x64/0xe8 [ 54.319281][ T4723] kmem_cache_alloc+0x94/0x3d4 [ 54.320068][ T4723] __debug_object_init+0x750/0xa0c [ 54.320863][ T4723] debug_object_init+0x20/0x2c [ 54.321594][ T4723] init_timer_key+0x54/0x410 [ 54.322302][ T4723] blk_mq_realloc_hw_ctxs+0x514/0x133c [ 54.323141][ T4723] blk_mq_init_allocated_queue+0x36c/0x158c [ 54.324022][ T4723] __blk_mq_alloc_disk+0x88/0x154 [ 54.324791][ T4723] loop_add+0x240/0x6e0 [ 54.325433][ T4723] loop_control_ioctl+0x130/0x4e0 [ 54.326193][ T4723] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.326945][ T4723] invoke_syscall+0x98/0x2b0 [ 54.327632][ T4723] el0_svc_common+0x138/0x258 [ 54.328327][ T4723] do_el0_svc+0x58/0x13c [ 54.328964][ T4723] el0_svc+0x78/0x1d0 [ 54.329560][ T4723] el0t_64_sync_handler+0xcc/0xe4 [ 54.330314][ T4723] el0t_64_sync+0x1a0/0x1a4 [ 54.345961][ T4725] FAULT_INJECTION: forcing a failure. [ 54.345961][ T4725] name failslab, interval 1, probability 0, space 0, times 0 [ 54.348226][ T4725] CPU: 0 PID: 4725 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.349771][ T4725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.351547][ T4725] Call trace: [ 54.352182][ T4725] dump_backtrace+0x0/0x458 [ 54.352968][ T4725] show_stack+0x2c/0x3c [ 54.353678][ T4725] __dump_stack+0x30/0x40 [ 54.354421][ T4725] dump_stack_lvl+0xf4/0x15c [ 54.355151][ T4725] dump_stack+0x1c/0x5c [ 54.355872][ T4725] should_fail+0x3bc/0x514 [ 54.356631][ T4725] __should_failslab+0xbc/0x10c [ 54.357492][ T4725] should_failslab+0x10/0x28 [ 54.358246][ T4725] slab_pre_alloc_hook+0x64/0xe8 [ 54.359082][ T4725] kmem_cache_alloc_node_trace+0x9c/0x424 [ 54.360015][ T4725] throtl_pd_alloc+0xac/0x4ec [ 54.360787][ T4725] blkcg_activate_policy+0x204/0xa8c [ 54.361693][ T4725] blk_throtl_init+0x308/0x3ec [ 54.362461][ T4725] blkcg_init_queue+0x3cc/0x484 [ 54.363283][ T4725] blk_alloc_queue+0x3cc/0x4a0 [ 54.364090][ T4725] __blk_mq_alloc_disk+0x5c/0x154 [ 54.364954][ T4725] loop_add+0x240/0x6e0 [ 54.365659][ T4725] loop_control_ioctl+0x130/0x4e0 [ 54.366465][ T4725] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.367253][ T4725] invoke_syscall+0x98/0x2b0 [ 54.367977][ T4725] el0_svc_common+0x138/0x258 [ 54.368764][ T4725] do_el0_svc+0x58/0x13c [ 54.369492][ T4725] el0_svc+0x78/0x1d0 [ 54.370187][ T4725] el0t_64_sync_handler+0xcc/0xe4 [ 54.371054][ T4725] el0t_64_sync+0x1a0/0x1a4 [ 54.385517][ T4727] FAULT_INJECTION: forcing a failure. [ 54.385517][ T4727] name failslab, interval 1, probability 0, space 0, times 0 [ 54.387850][ T4727] CPU: 1 PID: 4727 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.389414][ T4727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.391100][ T4727] Call trace: [ 54.391687][ T4727] dump_backtrace+0x0/0x458 [ 54.392459][ T4727] show_stack+0x2c/0x3c [ 54.393146][ T4727] __dump_stack+0x30/0x40 [ 54.393856][ T4727] dump_stack_lvl+0xf4/0x15c [ 54.394644][ T4727] dump_stack+0x1c/0x5c [ 54.395358][ T4727] should_fail+0x3bc/0x514 [ 54.396055][ T4727] __should_failslab+0xbc/0x10c [ 54.396909][ T4727] should_failslab+0x10/0x28 [ 54.397686][ T4727] slab_pre_alloc_hook+0x64/0xe8 [ 54.398485][ T4727] kmem_cache_alloc_trace+0x98/0x3ec [ 54.399395][ T4727] rand_initialize_disk+0x58/0xb8 [ 54.400233][ T4727] __alloc_disk_node+0x2a8/0x450 [ 54.401046][ T4727] __blk_mq_alloc_disk+0xe8/0x154 [ 54.401942][ T4727] loop_add+0x240/0x6e0 [ 54.402614][ T4727] loop_control_ioctl+0x130/0x4e0 [ 54.403450][ T4727] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.404359][ T4727] invoke_syscall+0x98/0x2b0 [ 54.405171][ T4727] el0_svc_common+0x138/0x258 [ 54.405953][ T4727] do_el0_svc+0x58/0x13c [ 54.406612][ T4727] el0_svc+0x78/0x1d0 [ 54.407266][ T4727] el0t_64_sync_handler+0xcc/0xe4 [ 54.408083][ T4727] el0t_64_sync+0x1a0/0x1a4 [ 54.421775][ T4729] FAULT_INJECTION: forcing a failure. [ 54.421775][ T4729] name failslab, interval 1, probability 0, space 0, times 0 [ 54.424119][ T4729] CPU: 0 PID: 4729 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.425579][ T4729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.427303][ T4729] Call trace: [ 54.427851][ T4729] dump_backtrace+0x0/0x458 [ 54.428617][ T4729] show_stack+0x2c/0x3c [ 54.429265][ T4729] __dump_stack+0x30/0x40 [ 54.430012][ T4729] dump_stack_lvl+0xf4/0x15c [ 54.430739][ T4729] dump_stack+0x1c/0x5c [ 54.431415][ T4729] should_fail+0x3bc/0x514 [ 54.432154][ T4729] __should_failslab+0xbc/0x10c [ 54.432932][ T4729] should_failslab+0x10/0x28 [ 54.433688][ T4729] slab_pre_alloc_hook+0x64/0xe8 [ 54.434514][ T4729] kmem_cache_alloc_trace+0x98/0x3ec [ 54.435467][ T4729] device_add+0xbc/0xf90 [ 54.436236][ T4729] device_add_disk+0x2d0/0xacc [ 54.437018][ T4729] loop_add+0x510/0x6e0 [ 54.437711][ T4729] loop_control_ioctl+0x130/0x4e0 [ 54.438593][ T4729] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.439510][ T4729] invoke_syscall+0x98/0x2b0 [ 54.440261][ T4729] el0_svc_common+0x138/0x258 [ 54.440989][ T4729] do_el0_svc+0x58/0x13c [ 54.441659][ T4729] el0_svc+0x78/0x1d0 [ 54.442355][ T4729] el0t_64_sync_handler+0xcc/0xe4 [ 54.443146][ T4729] el0t_64_sync+0x1a0/0x1a4 [ 54.454365][ T4731] FAULT_INJECTION: forcing a failure. [ 54.454365][ T4731] name failslab, interval 1, probability 0, space 0, times 0 [ 54.456630][ T4731] CPU: 0 PID: 4731 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.458162][ T4731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.459863][ T4731] Call trace: [ 54.460405][ T4731] dump_backtrace+0x0/0x458 [ 54.461143][ T4731] show_stack+0x2c/0x3c [ 54.461835][ T4731] __dump_stack+0x30/0x40 [ 54.462550][ T4731] dump_stack_lvl+0xf4/0x15c [ 54.463300][ T4731] dump_stack+0x1c/0x5c [ 54.464034][ T4731] should_fail+0x3bc/0x514 [ 54.464755][ T4731] __should_failslab+0xbc/0x10c [ 54.465483][ T4731] should_failslab+0x10/0x28 [ 54.466218][ T4731] slab_pre_alloc_hook+0x64/0xe8 [ 54.467030][ T4731] __kmalloc_track_caller+0x70/0x358 [ 54.467884][ T4731] kstrdup+0xe4/0x15c [ 54.468520][ T4731] kstrdup_const+0x54/0x6c [ 54.469277][ T4731] kvasprintf_const+0x120/0x2e4 [ 54.470053][ T4731] kobject_set_name_vargs+0xd8/0x1c8 [ 54.470901][ T4731] dev_set_name+0xe8/0x13c [ 54.471576][ T4731] device_add_disk+0x258/0xacc [ 54.472339][ T4731] loop_add+0x510/0x6e0 [ 54.472986][ T4731] loop_control_ioctl+0x130/0x4e0 [ 54.473748][ T4731] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.474585][ T4731] invoke_syscall+0x98/0x2b0 [ 54.475315][ T4731] el0_svc_common+0x138/0x258 [ 54.476110][ T4731] do_el0_svc+0x58/0x13c [ 54.476809][ T4731] el0_svc+0x78/0x1d0 [ 54.477471][ T4731] el0t_64_sync_handler+0xcc/0xe4 [ 54.478315][ T4731] el0t_64_sync+0x1a0/0x1a4 [ 54.488194][ T4733] FAULT_INJECTION: forcing a failure. [ 54.488194][ T4733] name failslab, interval 1, probability 0, space 0, times 0 [ 54.490503][ T4733] CPU: 1 PID: 4733 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.492039][ T4733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.493855][ T4733] Call trace: [ 54.494418][ T4733] dump_backtrace+0x0/0x458 [ 54.495185][ T4733] show_stack+0x2c/0x3c [ 54.495915][ T4733] __dump_stack+0x30/0x40 [ 54.496642][ T4733] dump_stack_lvl+0xf4/0x15c [ 54.497387][ T4733] dump_stack+0x1c/0x5c [ 54.498086][ T4733] should_fail+0x3bc/0x514 [ 54.498817][ T4733] __should_failslab+0xbc/0x10c [ 54.499607][ T4733] should_failslab+0x10/0x28 [ 54.500328][ T4733] slab_pre_alloc_hook+0x64/0xe8 [ 54.501123][ T4733] kmem_cache_alloc_trace+0x98/0x3ec [ 54.501976][ T4733] device_add+0xbc/0xf90 [ 54.502665][ T4733] device_add_disk+0x2d0/0xacc [ 54.503452][ T4733] loop_add+0x510/0x6e0 [ 54.504137][ T4733] loop_control_ioctl+0x130/0x4e0 [ 54.505096][ T4733] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.505981][ T4733] invoke_syscall+0x98/0x2b0 [ 54.506764][ T4733] el0_svc_common+0x138/0x258 [ 54.507558][ T4733] do_el0_svc+0x58/0x13c [ 54.508245][ T4733] el0_svc+0x78/0x1d0 [ 54.508901][ T4733] el0t_64_sync_handler+0xcc/0xe4 [ 54.509768][ T4733] el0t_64_sync+0x1a0/0x1a4 [ 54.526155][ T4735] FAULT_INJECTION: forcing a failure. [ 54.526155][ T4735] name failslab, interval 1, probability 0, space 0, times 0 [ 54.528278][ T4735] CPU: 1 PID: 4735 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.529742][ T4735] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.531420][ T4735] Call trace: [ 54.531962][ T4735] dump_backtrace+0x0/0x458 [ 54.532745][ T4735] show_stack+0x2c/0x3c [ 54.533444][ T4735] __dump_stack+0x30/0x40 [ 54.534119][ T4735] dump_stack_lvl+0xf4/0x15c [ 54.534912][ T4735] dump_stack+0x1c/0x5c [ 54.535589][ T4735] should_fail+0x3bc/0x514 [ 54.536287][ T4735] __should_failslab+0xbc/0x10c [ 54.537092][ T4735] should_failslab+0x10/0x28 [ 54.537867][ T4735] slab_pre_alloc_hook+0x64/0xe8 [ 54.538782][ T4735] kmem_cache_alloc_trace+0x98/0x3ec [ 54.539746][ T4735] rand_initialize_disk+0x58/0xb8 [ 54.540734][ T4735] __alloc_disk_node+0x2a8/0x450 [ 54.541531][ T4735] __blk_mq_alloc_disk+0xe8/0x154 [ 54.542365][ T4735] loop_add+0x240/0x6e0 [ 54.543134][ T4735] loop_control_ioctl+0x130/0x4e0 [ 54.544016][ T4735] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.544861][ T4735] invoke_syscall+0x98/0x2b0 [ 54.545669][ T4735] el0_svc_common+0x138/0x258 [ 54.546465][ T4735] do_el0_svc+0x58/0x13c [ 54.547253][ T4735] el0_svc+0x78/0x1d0 [ 54.547938][ T4735] el0t_64_sync_handler+0xcc/0xe4 [ 54.548781][ T4735] el0t_64_sync+0x1a0/0x1a4 [ 54.566231][ T4737] FAULT_INJECTION: forcing a failure. [ 54.566231][ T4737] name failslab, interval 1, probability 0, space 0, times 0 [ 54.568420][ T4737] CPU: 0 PID: 4737 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.569997][ T4737] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.571730][ T4737] Call trace: [ 54.572290][ T4737] dump_backtrace+0x0/0x458 [ 54.573098][ T4737] show_stack+0x2c/0x3c [ 54.573750][ T4737] __dump_stack+0x30/0x40 [ 54.574489][ T4737] dump_stack_lvl+0xf4/0x15c [ 54.575306][ T4737] dump_stack+0x1c/0x5c [ 54.576025][ T4737] should_fail+0x3bc/0x514 [ 54.576807][ T4737] __should_failslab+0xbc/0x10c [ 54.577658][ T4737] should_failslab+0x10/0x28 [ 54.578505][ T4737] slab_pre_alloc_hook+0x64/0xe8 [ 54.579287][ T4737] kmem_cache_alloc_trace+0x98/0x3ec [ 54.580138][ T4737] blk_iolatency_init+0x64/0x430 [ 54.580942][ T4737] blkcg_init_queue+0x3f0/0x484 [ 54.581748][ T4737] blk_alloc_queue+0x3cc/0x4a0 [ 54.582524][ T4737] __blk_mq_alloc_disk+0x5c/0x154 [ 54.583402][ T4737] loop_add+0x240/0x6e0 [ 54.584059][ T4737] loop_control_ioctl+0x130/0x4e0 [ 54.584991][ T4737] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.585843][ T4737] invoke_syscall+0x98/0x2b0 [ 54.586659][ T4737] el0_svc_common+0x138/0x258 [ 54.587453][ T4737] do_el0_svc+0x58/0x13c [ 54.588185][ T4737] el0_svc+0x78/0x1d0 [ 54.588880][ T4737] el0t_64_sync_handler+0xcc/0xe4 [ 54.589750][ T4737] el0t_64_sync+0x1a0/0x1a4 [ 54.601940][ T4739] FAULT_INJECTION: forcing a failure. [ 54.601940][ T4739] name failslab, interval 1, probability 0, space 0, times 0 [ 54.604101][ T4739] CPU: 0 PID: 4739 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.605702][ T4739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.607418][ T4739] Call trace: [ 54.607965][ T4739] dump_backtrace+0x0/0x458 [ 54.608723][ T4739] show_stack+0x2c/0x3c [ 54.609404][ T4739] __dump_stack+0x30/0x40 [ 54.610130][ T4739] dump_stack_lvl+0xf4/0x15c [ 54.610859][ T4739] dump_stack+0x1c/0x5c [ 54.611543][ T4739] should_fail+0x3bc/0x514 [ 54.612297][ T4739] __should_failslab+0xbc/0x10c [ 54.613150][ T4739] should_failslab+0x10/0x28 [ 54.613939][ T4739] slab_pre_alloc_hook+0x64/0xe8 [ 54.614813][ T4739] kmem_cache_alloc_trace+0x98/0x3ec [ 54.615788][ T4739] device_add+0xbc/0xf90 [ 54.616494][ T4739] device_add_disk+0x2d0/0xacc [ 54.617343][ T4739] loop_add+0x510/0x6e0 [ 54.618005][ T4739] loop_control_ioctl+0x130/0x4e0 [ 54.618856][ T4739] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.619736][ T4739] invoke_syscall+0x98/0x2b0 [ 54.620587][ T4739] el0_svc_common+0x138/0x258 [ 54.621404][ T4739] do_el0_svc+0x58/0x13c [ 54.622121][ T4739] el0_svc+0x78/0x1d0 [ 54.622820][ T4739] el0t_64_sync_handler+0xcc/0xe4 [ 54.623679][ T4739] el0t_64_sync+0x1a0/0x1a4 [ 54.632820][ T4741] FAULT_INJECTION: forcing a failure. [ 54.632820][ T4741] name failslab, interval 1, probability 0, space 0, times 0 [ 54.635175][ T4741] CPU: 0 PID: 4741 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.636673][ T4741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.638381][ T4741] Call trace: [ 54.638944][ T4741] dump_backtrace+0x0/0x458 [ 54.639685][ T4741] show_stack+0x2c/0x3c [ 54.640425][ T4741] __dump_stack+0x30/0x40 [ 54.641201][ T4741] dump_stack_lvl+0xf4/0x15c [ 54.641993][ T4741] dump_stack+0x1c/0x5c [ 54.642648][ T4741] should_fail+0x3bc/0x514 [ 54.643457][ T4741] __should_failslab+0xbc/0x10c [ 54.644343][ T4741] should_failslab+0x10/0x28 [ 54.645143][ T4741] slab_pre_alloc_hook+0x64/0xe8 [ 54.645905][ T4741] kmem_cache_alloc+0x94/0x3d4 [ 54.646718][ T4741] __debug_object_init+0x73c/0xa0c [ 54.647574][ T4741] debug_object_init+0x20/0x2c [ 54.648318][ T4741] __init_work+0x58/0x68 [ 54.649024][ T4741] blk_mq_realloc_hw_ctxs+0x458/0x133c [ 54.649897][ T4741] blk_mq_init_allocated_queue+0x36c/0x158c [ 54.650886][ T4741] __blk_mq_alloc_disk+0x88/0x154 [ 54.651680][ T4741] loop_add+0x240/0x6e0 [ 54.652385][ T4741] loop_control_ioctl+0x130/0x4e0 [ 54.653246][ T4741] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.654081][ T4741] invoke_syscall+0x98/0x2b0 [ 54.654935][ T4741] el0_svc_common+0x138/0x258 [ 54.655768][ T4741] do_el0_svc+0x58/0x13c [ 54.656505][ T4741] el0_svc+0x78/0x1d0 [ 54.657114][ T4741] el0t_64_sync_handler+0xcc/0xe4 [ 54.657933][ T4741] el0t_64_sync+0x1a0/0x1a4 [ 54.662277][ T13] Bluetooth: hci0: command 0x041b tx timeout [ 54.670445][ T4743] FAULT_INJECTION: forcing a failure. [ 54.670445][ T4743] name failslab, interval 1, probability 0, space 0, times 0 [ 54.673533][ T4743] CPU: 1 PID: 4743 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.675140][ T4743] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.676882][ T4743] Call trace: [ 54.677458][ T4743] dump_backtrace+0x0/0x458 [ 54.678229][ T4743] show_stack+0x2c/0x3c [ 54.678935][ T4743] __dump_stack+0x30/0x40 [ 54.679667][ T4743] dump_stack_lvl+0xf4/0x15c [ 54.680443][ T4743] dump_stack+0x1c/0x5c [ 54.681190][ T4743] should_fail+0x3bc/0x514 [ 54.682016][ T4743] __should_failslab+0xbc/0x10c [ 54.682824][ T4743] should_failslab+0x10/0x28 [ 54.683593][ T4743] slab_pre_alloc_hook+0x64/0xe8 [ 54.684411][ T4743] kmem_cache_alloc+0x94/0x3d4 [ 54.685240][ T4743] __debug_object_init+0x6b0/0xa0c [ 54.686144][ T4743] debug_object_init+0x20/0x2c [ 54.686954][ T4743] init_timer_key+0x54/0x410 [ 54.687756][ T4743] wb_init+0x3cc/0x6e4 [ 54.688459][ T4743] bdi_init+0x1b4/0x2f4 [ 54.689208][ T4743] bdi_alloc+0x6c/0x144 [ 54.689915][ T4743] __alloc_disk_node+0x8c/0x450 [ 54.690684][ T4743] __blk_mq_alloc_disk+0xe8/0x154 [ 54.691557][ T4743] loop_add+0x240/0x6e0 [ 54.692262][ T4743] loop_control_ioctl+0x130/0x4e0 [ 54.693090][ T4743] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.693943][ T4743] invoke_syscall+0x98/0x2b0 [ 54.694688][ T4743] el0_svc_common+0x138/0x258 [ 54.695483][ T4743] do_el0_svc+0x58/0x13c [ 54.696278][ T4743] el0_svc+0x78/0x1d0 [ 54.696999][ T4743] el0t_64_sync_handler+0xcc/0xe4 [ 54.697818][ T4743] el0t_64_sync+0x1a0/0x1a4 [ 54.713225][ T4745] FAULT_INJECTION: forcing a failure. [ 54.713225][ T4745] name failslab, interval 1, probability 0, space 0, times 0 [ 54.715631][ T4745] CPU: 1 PID: 4745 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.717183][ T4745] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.718966][ T4745] Call trace: [ 54.719509][ T4745] dump_backtrace+0x0/0x458 [ 54.720302][ T4745] show_stack+0x2c/0x3c [ 54.720991][ T4745] __dump_stack+0x30/0x40 [ 54.721782][ T4745] dump_stack_lvl+0xf4/0x15c [ 54.722551][ T4745] dump_stack+0x1c/0x5c [ 54.723215][ T4745] should_fail+0x3bc/0x514 [ 54.723928][ T4745] __should_failslab+0xbc/0x10c [ 54.724728][ T4745] should_failslab+0x10/0x28 [ 54.725450][ T4745] slab_pre_alloc_hook+0x64/0xe8 [ 54.726262][ T4745] kmem_cache_alloc_trace+0x98/0x3ec [ 54.727131][ T4745] device_add+0xbc/0xf90 [ 54.727816][ T4745] device_add_disk+0x2d0/0xacc [ 54.728539][ T4745] loop_add+0x510/0x6e0 [ 54.729194][ T4745] loop_control_ioctl+0x130/0x4e0 [ 54.729984][ T4745] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.730819][ T4745] invoke_syscall+0x98/0x2b0 [ 54.731555][ T4745] el0_svc_common+0x138/0x258 [ 54.732355][ T4745] do_el0_svc+0x58/0x13c [ 54.733062][ T4745] el0_svc+0x78/0x1d0 [ 54.733700][ T4745] el0t_64_sync_handler+0xcc/0xe4 [ 54.734543][ T4745] el0t_64_sync+0x1a0/0x1a4 [ 54.747376][ T4747] FAULT_INJECTION: forcing a failure. [ 54.747376][ T4747] name failslab, interval 1, probability 0, space 0, times 0 [ 54.749509][ T4747] CPU: 0 PID: 4747 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.751090][ T4747] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.752748][ T4747] Call trace: [ 54.753282][ T4747] dump_backtrace+0x0/0x458 [ 54.754040][ T4747] show_stack+0x2c/0x3c [ 54.754794][ T4747] __dump_stack+0x30/0x40 [ 54.755524][ T4747] dump_stack_lvl+0xf4/0x15c [ 54.756329][ T4747] dump_stack+0x1c/0x5c [ 54.757032][ T4747] should_fail+0x3bc/0x514 [ 54.757735][ T4747] __should_failslab+0xbc/0x10c [ 54.758528][ T4747] should_failslab+0x10/0x28 [ 54.759358][ T4747] slab_pre_alloc_hook+0x64/0xe8 [ 54.760188][ T4747] kmem_cache_alloc_node_trace+0x9c/0x424 [ 54.761257][ T4747] iolatency_pd_alloc+0xac/0x164 [ 54.762090][ T4747] blkcg_activate_policy+0x204/0xa8c [ 54.763047][ T4747] blk_iolatency_init+0x22c/0x430 [ 54.763949][ T4747] blkcg_init_queue+0x3f0/0x484 [ 54.764787][ T4747] blk_alloc_queue+0x3cc/0x4a0 [ 54.765626][ T4747] __blk_mq_alloc_disk+0x5c/0x154 [ 54.766455][ T4747] loop_add+0x240/0x6e0 [ 54.767145][ T4747] loop_control_ioctl+0x130/0x4e0 [ 54.768037][ T4747] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.768832][ T4747] invoke_syscall+0x98/0x2b0 [ 54.769643][ T4747] el0_svc_common+0x138/0x258 [ 54.770458][ T4747] do_el0_svc+0x58/0x13c [ 54.771224][ T4747] el0_svc+0x78/0x1d0 [ 54.771897][ T4747] el0t_64_sync_handler+0xcc/0xe4 [ 54.772821][ T4747] el0t_64_sync+0x1a0/0x1a4 [ 54.786151][ T4749] FAULT_INJECTION: forcing a failure. [ 54.786151][ T4749] name failslab, interval 1, probability 0, space 0, times 0 [ 54.788441][ T4749] CPU: 1 PID: 4749 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.789987][ T4749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.791723][ T4749] Call trace: [ 54.792235][ T4749] dump_backtrace+0x0/0x458 [ 54.792996][ T4749] show_stack+0x2c/0x3c [ 54.793736][ T4749] __dump_stack+0x30/0x40 [ 54.794459][ T4749] dump_stack_lvl+0xf4/0x15c [ 54.795214][ T4749] dump_stack+0x1c/0x5c [ 54.795869][ T4749] should_fail+0x3bc/0x514 [ 54.796633][ T4749] __should_failslab+0xbc/0x10c [ 54.797504][ T4749] should_failslab+0x10/0x28 [ 54.798281][ T4749] slab_pre_alloc_hook+0x64/0xe8 [ 54.799124][ T4749] __kmalloc_track_caller+0x70/0x358 [ 54.799982][ T4749] kstrdup+0xe4/0x15c [ 54.800669][ T4749] kstrdup_const+0x54/0x6c [ 54.801471][ T4749] kvasprintf_const+0x120/0x2e4 [ 54.802341][ T4749] kobject_set_name_vargs+0xd8/0x1c8 [ 54.803258][ T4749] dev_set_name+0xe8/0x13c [ 54.804076][ T4749] device_add_disk+0x258/0xacc [ 54.804898][ T4749] loop_add+0x510/0x6e0 [ 54.805650][ T4749] loop_control_ioctl+0x130/0x4e0 [ 54.806503][ T4749] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.807403][ T4749] invoke_syscall+0x98/0x2b0 [ 54.808170][ T4749] el0_svc_common+0x138/0x258 [ 54.808930][ T4749] do_el0_svc+0x58/0x13c [ 54.809605][ T4749] el0_svc+0x78/0x1d0 [ 54.810319][ T4749] el0t_64_sync_handler+0xcc/0xe4 [ 54.811184][ T4749] el0t_64_sync+0x1a0/0x1a4 [ 54.821092][ T4751] FAULT_INJECTION: forcing a failure. [ 54.821092][ T4751] name failslab, interval 1, probability 0, space 0, times 0 [ 54.823261][ T4751] CPU: 1 PID: 4751 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.824804][ T4751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.826494][ T4751] Call trace: [ 54.827035][ T4751] dump_backtrace+0x0/0x458 [ 54.827803][ T4751] show_stack+0x2c/0x3c [ 54.828516][ T4751] __dump_stack+0x30/0x40 [ 54.829231][ T4751] dump_stack_lvl+0xf4/0x15c [ 54.830009][ T4751] dump_stack+0x1c/0x5c [ 54.830745][ T4751] should_fail+0x3bc/0x514 [ 54.831490][ T4751] __should_failslab+0xbc/0x10c [ 54.832339][ T4751] should_failslab+0x10/0x28 [ 54.833059][ T4751] slab_pre_alloc_hook+0x64/0xe8 [ 54.833896][ T4751] kmem_cache_alloc+0x94/0x3d4 [ 54.834704][ T4751] __debug_object_init+0x7b0/0xa0c [ 54.835565][ T4751] debug_object_init+0x20/0x2c [ 54.836375][ T4751] init_timer_key+0x54/0x410 [ 54.837149][ T4751] throtl_pd_alloc+0x1d4/0x4ec [ 54.838006][ T4751] blkcg_activate_policy+0x204/0xa8c [ 54.838849][ T4751] blk_throtl_init+0x308/0x3ec [ 54.839613][ T4751] blkcg_init_queue+0x3cc/0x484 [ 54.840459][ T4751] blk_alloc_queue+0x3cc/0x4a0 [ 54.841248][ T4751] __blk_mq_alloc_disk+0x5c/0x154 [ 54.842067][ T4751] loop_add+0x240/0x6e0 [ 54.842755][ T4751] loop_control_ioctl+0x130/0x4e0 [ 54.843622][ T4751] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.844500][ T4751] invoke_syscall+0x98/0x2b0 [ 54.845237][ T4751] el0_svc_common+0x138/0x258 [ 54.846028][ T4751] do_el0_svc+0x58/0x13c [ 54.846723][ T4751] el0_svc+0x78/0x1d0 [ 54.847351][ T4751] el0t_64_sync_handler+0xcc/0xe4 [ 54.848232][ T4751] el0t_64_sync+0x1a0/0x1a4 [ 54.866558][ T4753] FAULT_INJECTION: forcing a failure. [ 54.866558][ T4753] name failslab, interval 1, probability 0, space 0, times 0 [ 54.868722][ T4753] CPU: 1 PID: 4753 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.870236][ T4753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.871875][ T4753] Call trace: [ 54.872454][ T4753] dump_backtrace+0x0/0x458 [ 54.873267][ T4753] show_stack+0x2c/0x3c [ 54.873937][ T4753] __dump_stack+0x30/0x40 [ 54.874656][ T4753] dump_stack_lvl+0xf4/0x15c [ 54.875426][ T4753] dump_stack+0x1c/0x5c [ 54.876069][ T4753] should_fail+0x3bc/0x514 [ 54.876765][ T4753] __should_failslab+0xbc/0x10c [ 54.877567][ T4753] should_failslab+0x10/0x28 [ 54.878342][ T4753] slab_pre_alloc_hook+0x64/0xe8 [ 54.879209][ T4753] kmem_cache_alloc_trace+0x98/0x3ec [ 54.880100][ T4753] rand_initialize_disk+0x58/0xb8 [ 54.880923][ T4753] __alloc_disk_node+0x2a8/0x450 [ 54.881692][ T4753] __blk_mq_alloc_disk+0xe8/0x154 [ 54.882547][ T4753] loop_add+0x240/0x6e0 [ 54.883262][ T4753] loop_control_ioctl+0x130/0x4e0 [ 54.884085][ T4753] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.884913][ T4753] invoke_syscall+0x98/0x2b0 [ 54.885646][ T4753] el0_svc_common+0x138/0x258 [ 54.886424][ T4753] do_el0_svc+0x58/0x13c [ 54.887133][ T4753] el0_svc+0x78/0x1d0 [ 54.887804][ T4753] el0t_64_sync_handler+0xcc/0xe4 [ 54.888659][ T4753] el0t_64_sync+0x1a0/0x1a4 [ 54.902137][ T4755] FAULT_INJECTION: forcing a failure. [ 54.902137][ T4755] name failslab, interval 1, probability 0, space 0, times 0 [ 54.904401][ T4755] CPU: 0 PID: 4755 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.905825][ T4755] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.907534][ T4755] Call trace: [ 54.908098][ T4755] dump_backtrace+0x0/0x458 [ 54.908863][ T4755] show_stack+0x2c/0x3c [ 54.909584][ T4755] __dump_stack+0x30/0x40 [ 54.910325][ T4755] dump_stack_lvl+0xf4/0x15c [ 54.911145][ T4755] dump_stack+0x1c/0x5c [ 54.911861][ T4755] should_fail+0x3bc/0x514 [ 54.912611][ T4755] __should_failslab+0xbc/0x10c [ 54.913483][ T4755] should_failslab+0x10/0x28 [ 54.914292][ T4755] slab_pre_alloc_hook+0x64/0xe8 [ 54.915128][ T4755] kmem_cache_alloc_trace+0x98/0x3ec [ 54.916011][ T4755] device_add+0xbc/0xf90 [ 54.916764][ T4755] device_add_disk+0x2d0/0xacc [ 54.917566][ T4755] loop_add+0x510/0x6e0 [ 54.918274][ T4755] loop_control_ioctl+0x130/0x4e0 [ 54.919159][ T4755] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.920010][ T4755] invoke_syscall+0x98/0x2b0 [ 54.920797][ T4755] el0_svc_common+0x138/0x258 [ 54.921584][ T4755] do_el0_svc+0x58/0x13c [ 54.922307][ T4755] el0_svc+0x78/0x1d0 [ 54.922968][ T4755] el0t_64_sync_handler+0xcc/0xe4 [ 54.923792][ T4755] el0t_64_sync+0x1a0/0x1a4 [ 54.935931][ T4757] FAULT_INJECTION: forcing a failure. [ 54.935931][ T4757] name failslab, interval 1, probability 0, space 0, times 0 [ 54.938215][ T4757] CPU: 0 PID: 4757 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.939847][ T4757] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.941682][ T4757] Call trace: [ 54.942191][ T4757] dump_backtrace+0x0/0x458 [ 54.942913][ T4757] show_stack+0x2c/0x3c [ 54.943554][ T4757] __dump_stack+0x30/0x40 [ 54.944332][ T4757] dump_stack_lvl+0xf4/0x15c [ 54.945145][ T4757] dump_stack+0x1c/0x5c [ 54.945886][ T4757] should_fail+0x3bc/0x514 [ 54.946671][ T4757] __should_failslab+0xbc/0x10c [ 54.947510][ T4757] should_failslab+0x10/0x28 [ 54.948326][ T4757] slab_pre_alloc_hook+0x64/0xe8 [ 54.949163][ T4757] __kmalloc_track_caller+0x70/0x358 [ 54.950044][ T4757] kstrdup+0xe4/0x15c [ 54.950698][ T4757] kstrdup_const+0x54/0x6c [ 54.951463][ T4757] kvasprintf_const+0x120/0x2e4 [ 54.952397][ T4757] kobject_set_name_vargs+0xd8/0x1c8 [ 54.953277][ T4757] dev_set_name+0xe8/0x13c [ 54.954016][ T4757] device_add_disk+0x258/0xacc [ 54.954902][ T4757] loop_add+0x510/0x6e0 [ 54.955644][ T4757] loop_control_ioctl+0x130/0x4e0 [ 54.956530][ T4757] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.957413][ T4757] invoke_syscall+0x98/0x2b0 [ 54.958184][ T4757] el0_svc_common+0x138/0x258 [ 54.958975][ T4757] do_el0_svc+0x58/0x13c [ 54.959802][ T4757] el0_svc+0x78/0x1d0 [ 54.960519][ T4757] el0t_64_sync_handler+0xcc/0xe4 [ 54.961339][ T4757] el0t_64_sync+0x1a0/0x1a4 [ 54.976301][ T4759] FAULT_INJECTION: forcing a failure. [ 54.976301][ T4759] name failslab, interval 1, probability 0, space 0, times 0 [ 54.978304][ T4759] CPU: 0 PID: 4759 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.979822][ T4759] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.981626][ T4759] Call trace: [ 54.982226][ T4759] dump_backtrace+0x0/0x458 [ 54.982962][ T4759] show_stack+0x2c/0x3c [ 54.983708][ T4759] __dump_stack+0x30/0x40 [ 54.984496][ T4759] dump_stack_lvl+0xf4/0x15c [ 54.985289][ T4759] dump_stack+0x1c/0x5c [ 54.985992][ T4759] should_fail+0x3bc/0x514 [ 54.986746][ T4759] __should_failslab+0xbc/0x10c [ 54.987606][ T4759] should_failslab+0x10/0x28 [ 54.988369][ T4759] slab_pre_alloc_hook+0x64/0xe8 [ 54.989191][ T4759] kmem_cache_alloc+0x94/0x3d4 [ 54.989971][ T4759] __debug_object_init+0x700/0xa0c [ 54.990846][ T4759] debug_object_init+0x20/0x2c [ 54.991632][ T4759] __init_work+0x58/0x68 [ 54.992342][ T4759] blk_mq_init_allocated_queue+0x3a0/0x158c [ 54.993329][ T4759] __blk_mq_alloc_disk+0x88/0x154 [ 54.994195][ T4759] loop_add+0x240/0x6e0 [ 54.994966][ T4759] loop_control_ioctl+0x130/0x4e0 [ 54.995766][ T4759] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.996619][ T4759] invoke_syscall+0x98/0x2b0 [ 54.997400][ T4759] el0_svc_common+0x138/0x258 [ 54.998261][ T4759] do_el0_svc+0x58/0x13c [ 54.998998][ T4759] el0_svc+0x78/0x1d0 [ 54.999633][ T4759] el0t_64_sync_handler+0xcc/0xe4 [ 55.000501][ T4759] el0t_64_sync+0x1a0/0x1a4 [ 55.013820][ T4761] FAULT_INJECTION: forcing a failure. [ 55.013820][ T4761] name failslab, interval 1, probability 0, space 0, times 0 [ 55.016023][ T4761] CPU: 1 PID: 4761 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.017529][ T4761] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.019166][ T4761] Call trace: [ 55.019691][ T4761] dump_backtrace+0x0/0x458 [ 55.020435][ T4761] show_stack+0x2c/0x3c [ 55.021171][ T4761] __dump_stack+0x30/0x40 [ 55.021916][ T4761] dump_stack_lvl+0xf4/0x15c [ 55.022673][ T4761] dump_stack+0x1c/0x5c [ 55.023347][ T4761] should_fail+0x3bc/0x514 [ 55.024096][ T4761] __should_failslab+0xbc/0x10c [ 55.024857][ T4761] should_failslab+0x10/0x28 [ 55.025606][ T4761] slab_pre_alloc_hook+0x64/0xe8 [ 55.026355][ T4761] kmem_cache_alloc_node_trace+0x9c/0x424 [ 55.027346][ T4761] iolatency_pd_alloc+0xac/0x164 [ 55.028168][ T4761] blkcg_activate_policy+0x204/0xa8c [ 55.028968][ T4761] blk_iolatency_init+0x22c/0x430 [ 55.029753][ T4761] blkcg_init_queue+0x3f0/0x484 [ 55.030576][ T4761] blk_alloc_queue+0x3cc/0x4a0 [ 55.031345][ T4761] __blk_mq_alloc_disk+0x5c/0x154 [ 55.032216][ T4761] loop_add+0x240/0x6e0 [ 55.032955][ T4761] loop_control_ioctl+0x130/0x4e0 [ 55.033868][ T4761] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.034727][ T4761] invoke_syscall+0x98/0x2b0 [ 55.035540][ T4761] el0_svc_common+0x138/0x258 [ 55.036379][ T4761] do_el0_svc+0x58/0x13c [ 55.037154][ T4761] el0_svc+0x78/0x1d0 [ 55.037910][ T4761] el0t_64_sync_handler+0xcc/0xe4 [ 55.038812][ T4761] el0t_64_sync+0x1a0/0x1a4 [ 55.050827][ T4763] FAULT_INJECTION: forcing a failure. [ 55.050827][ T4763] name failslab, interval 1, probability 0, space 0, times 0 [ 55.053772][ T4763] CPU: 1 PID: 4763 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.055293][ T4763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.057013][ T4763] Call trace: [ 55.057563][ T4763] dump_backtrace+0x0/0x458 [ 55.058285][ T4763] show_stack+0x2c/0x3c [ 55.059010][ T4763] __dump_stack+0x30/0x40 [ 55.059820][ T4763] dump_stack_lvl+0xf4/0x15c [ 55.060580][ T4763] dump_stack+0x1c/0x5c [ 55.061272][ T4763] should_fail+0x3bc/0x514 [ 55.061958][ T4763] __should_failslab+0xbc/0x10c [ 55.062764][ T4763] should_failslab+0x10/0x28 [ 55.063485][ T4763] slab_pre_alloc_hook+0x64/0xe8 [ 55.064294][ T4763] kmem_cache_alloc_trace+0x98/0x3ec [ 55.065142][ T4763] blk_iolatency_init+0x64/0x430 [ 55.065935][ T4763] blkcg_init_queue+0x3f0/0x484 [ 55.066700][ T4763] blk_alloc_queue+0x3cc/0x4a0 [ 55.067510][ T4763] __blk_mq_alloc_disk+0x5c/0x154 [ 55.068391][ T4763] loop_add+0x240/0x6e0 [ 55.069076][ T4763] loop_control_ioctl+0x130/0x4e0 [ 55.069856][ T4763] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.070685][ T4763] invoke_syscall+0x98/0x2b0 [ 55.071417][ T4763] el0_svc_common+0x138/0x258 [ 55.072220][ T4763] do_el0_svc+0x58/0x13c [ 55.072922][ T4763] el0_svc+0x78/0x1d0 [ 55.073592][ T4763] el0t_64_sync_handler+0xcc/0xe4 [ 55.074415][ T4763] el0t_64_sync+0x1a0/0x1a4 [ 55.084328][ T4765] FAULT_INJECTION: forcing a failure. [ 55.084328][ T4765] name failslab, interval 1, probability 0, space 0, times 0 [ 55.086693][ T4765] CPU: 1 PID: 4765 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.088207][ T4765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.089941][ T4765] Call trace: [ 55.090482][ T4765] dump_backtrace+0x0/0x458 [ 55.091279][ T4765] show_stack+0x2c/0x3c [ 55.092019][ T4765] __dump_stack+0x30/0x40 [ 55.092823][ T4765] dump_stack_lvl+0xf4/0x15c [ 55.093608][ T4765] dump_stack+0x1c/0x5c [ 55.094373][ T4765] should_fail+0x3bc/0x514 [ 55.095130][ T4765] __should_failslab+0xbc/0x10c [ 55.095983][ T4765] should_failslab+0x10/0x28 [ 55.096743][ T4765] slab_pre_alloc_hook+0x64/0xe8 [ 55.097584][ T4765] kmem_cache_alloc_trace+0x98/0x3ec [ 55.098466][ T4765] device_add+0xbc/0xf90 [ 55.099140][ T4765] device_add_disk+0x2d0/0xacc [ 55.099965][ T4765] loop_add+0x510/0x6e0 [ 55.100636][ T4765] loop_control_ioctl+0x130/0x4e0 [ 55.101491][ T4765] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.102328][ T4765] invoke_syscall+0x98/0x2b0 [ 55.103079][ T4765] el0_svc_common+0x138/0x258 [ 55.103905][ T4765] do_el0_svc+0x58/0x13c [ 55.104570][ T4765] el0_svc+0x78/0x1d0 [ 55.105349][ T4765] el0t_64_sync_handler+0xcc/0xe4 [ 55.106221][ T4765] el0t_64_sync+0x1a0/0x1a4 [ 55.116209][ T4767] FAULT_INJECTION: forcing a failure. [ 55.116209][ T4767] name failslab, interval 1, probability 0, space 0, times 0 [ 55.118521][ T4767] CPU: 1 PID: 4767 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.119953][ T4767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.121720][ T4767] Call trace: [ 55.122285][ T4767] dump_backtrace+0x0/0x458 [ 55.123052][ T4767] show_stack+0x2c/0x3c [ 55.123713][ T4767] __dump_stack+0x30/0x40 [ 55.124404][ T4767] dump_stack_lvl+0xf4/0x15c [ 55.125188][ T4767] dump_stack+0x1c/0x5c [ 55.125853][ T4767] should_fail+0x3bc/0x514 [ 55.126621][ T4767] __should_failslab+0xbc/0x10c [ 55.127426][ T4767] should_failslab+0x10/0x28 [ 55.128239][ T4767] slab_pre_alloc_hook+0x64/0xe8 [ 55.129059][ T4767] kmem_cache_alloc_trace+0x98/0x3ec [ 55.129953][ T4767] device_add+0xbc/0xf90 [ 55.130634][ T4767] device_add_disk+0x2d0/0xacc [ 55.131454][ T4767] loop_add+0x510/0x6e0 [ 55.132144][ T4767] loop_control_ioctl+0x130/0x4e0 [ 55.132943][ T4767] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.133858][ T4767] invoke_syscall+0x98/0x2b0 [ 55.134586][ T4767] el0_svc_common+0x138/0x258 [ 55.135326][ T4767] do_el0_svc+0x58/0x13c [ 55.136021][ T4767] el0_svc+0x78/0x1d0 [ 55.136668][ T4767] el0t_64_sync_handler+0xcc/0xe4 [ 55.137577][ T4767] el0t_64_sync+0x1a0/0x1a4 [ 55.148642][ T4769] FAULT_INJECTION: forcing a failure. [ 55.148642][ T4769] name failslab, interval 1, probability 0, space 0, times 0 [ 55.150914][ T4769] CPU: 1 PID: 4769 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.152423][ T4769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.154156][ T4769] Call trace: [ 55.154753][ T4769] dump_backtrace+0x0/0x458 [ 55.155544][ T4769] show_stack+0x2c/0x3c [ 55.156221][ T4769] __dump_stack+0x30/0x40 [ 55.156949][ T4769] dump_stack_lvl+0xf4/0x15c [ 55.157903][ T4769] dump_stack+0x1c/0x5c [ 55.158565][ T4769] should_fail+0x3bc/0x514 [ 55.159330][ T4769] __should_failslab+0xbc/0x10c [ 55.160198][ T4769] should_failslab+0x10/0x28 [ 55.160962][ T4769] slab_pre_alloc_hook+0x64/0xe8 [ 55.161795][ T4769] __kmalloc_track_caller+0x70/0x358 [ 55.162710][ T4769] kstrdup+0xe4/0x15c [ 55.163357][ T4769] kstrdup_const+0x54/0x6c [ 55.164128][ T4769] kvasprintf_const+0x120/0x2e4 [ 55.164925][ T4769] kobject_set_name_vargs+0xd8/0x1c8 [ 55.165861][ T4769] dev_set_name+0xe8/0x13c [ 55.166687][ T4769] device_add_disk+0x258/0xacc [ 55.167501][ T4769] loop_add+0x510/0x6e0 [ 55.168223][ T4769] loop_control_ioctl+0x130/0x4e0 [ 55.169156][ T4769] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.170011][ T4769] invoke_syscall+0x98/0x2b0 [ 55.170850][ T4769] el0_svc_common+0x138/0x258 [ 55.171636][ T4769] do_el0_svc+0x58/0x13c [ 55.172345][ T4769] el0_svc+0x78/0x1d0 [ 55.173047][ T4769] el0t_64_sync_handler+0xcc/0xe4 [ 55.173917][ T4769] el0t_64_sync+0x1a0/0x1a4 [ 55.184013][ T4771] FAULT_INJECTION: forcing a failure. [ 55.184013][ T4771] name failslab, interval 1, probability 0, space 0, times 0 [ 55.186325][ T4771] CPU: 1 PID: 4771 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.187843][ T4771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.189488][ T4771] Call trace: [ 55.189975][ T4771] dump_backtrace+0x0/0x458 [ 55.190693][ T4771] show_stack+0x2c/0x3c [ 55.191395][ T4771] __dump_stack+0x30/0x40 [ 55.192098][ T4771] dump_stack_lvl+0xf4/0x15c [ 55.192870][ T4771] dump_stack+0x1c/0x5c [ 55.193565][ T4771] should_fail+0x3bc/0x514 [ 55.194330][ T4771] __should_failslab+0xbc/0x10c [ 55.195148][ T4771] should_failslab+0x10/0x28 [ 55.195912][ T4771] slab_pre_alloc_hook+0x64/0xe8 [ 55.196763][ T4771] kmem_cache_alloc+0x94/0x3d4 [ 55.197558][ T4771] __debug_object_init+0x7c8/0xa0c [ 55.198436][ T4771] debug_object_init+0x20/0x2c [ 55.199209][ T4771] init_timer_key+0x54/0x410 [ 55.199966][ T4771] blk_iolatency_init+0x2cc/0x430 [ 55.200830][ T4771] blkcg_init_queue+0x3f0/0x484 [ 55.201616][ T4771] blk_alloc_queue+0x3cc/0x4a0 [ 55.202438][ T4771] __blk_mq_alloc_disk+0x5c/0x154 [ 55.203293][ T4771] loop_add+0x240/0x6e0 [ 55.204083][ T4771] loop_control_ioctl+0x130/0x4e0 [ 55.204993][ T4771] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.205870][ T4771] invoke_syscall+0x98/0x2b0 [ 55.206677][ T4771] el0_svc_common+0x138/0x258 [ 55.207481][ T4771] do_el0_svc+0x58/0x13c [ 55.208138][ T4771] el0_svc+0x78/0x1d0 [ 55.208833][ T4771] el0t_64_sync_handler+0xcc/0xe4 [ 55.209810][ T4771] el0t_64_sync+0x1a0/0x1a4 [ 55.221186][ T4773] FAULT_INJECTION: forcing a failure. [ 55.221186][ T4773] name failslab, interval 1, probability 0, space 0, times 0 [ 55.223448][ T4773] CPU: 1 PID: 4773 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.224909][ T4773] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.226670][ T4773] Call trace: [ 55.227192][ T4773] dump_backtrace+0x0/0x458 [ 55.227926][ T4773] show_stack+0x2c/0x3c [ 55.228570][ T4773] __dump_stack+0x30/0x40 [ 55.229349][ T4773] dump_stack_lvl+0xf4/0x15c [ 55.230145][ T4773] dump_stack+0x1c/0x5c [ 55.230938][ T4773] should_fail+0x3bc/0x514 [ 55.231659][ T4773] __should_failslab+0xbc/0x10c [ 55.232440][ T4773] should_failslab+0x10/0x28 [ 55.233217][ T4773] slab_pre_alloc_hook+0x64/0xe8 [ 55.234076][ T4773] kmem_cache_alloc_trace+0x98/0x3ec [ 55.234972][ T4773] blk_iolatency_init+0x64/0x430 [ 55.235764][ T4773] blkcg_init_queue+0x3f0/0x484 [ 55.236586][ T4773] blk_alloc_queue+0x3cc/0x4a0 [ 55.237352][ T4773] __blk_mq_alloc_disk+0x5c/0x154 [ 55.238145][ T4773] loop_add+0x240/0x6e0 [ 55.238823][ T4773] loop_control_ioctl+0x130/0x4e0 [ 55.239731][ T4773] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.240656][ T4773] invoke_syscall+0x98/0x2b0 [ 55.241414][ T4773] el0_svc_common+0x138/0x258 [ 55.242250][ T4773] do_el0_svc+0x58/0x13c [ 55.242980][ T4773] el0_svc+0x78/0x1d0 [ 55.243686][ T4773] el0t_64_sync_handler+0xcc/0xe4 [ 55.244458][ T4773] el0t_64_sync+0x1a0/0x1a4 [ 55.255652][ T4775] FAULT_INJECTION: forcing a failure. [ 55.255652][ T4775] name failslab, interval 1, probability 0, space 0, times 0 [ 55.257976][ T4775] CPU: 1 PID: 4775 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.259409][ T4775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.261017][ T4775] Call trace: [ 55.261526][ T4775] dump_backtrace+0x0/0x458 [ 55.262267][ T4775] show_stack+0x2c/0x3c [ 55.262978][ T4775] __dump_stack+0x30/0x40 [ 55.263715][ T4775] dump_stack_lvl+0xf4/0x15c [ 55.264469][ T4775] dump_stack+0x1c/0x5c [ 55.265162][ T4775] should_fail+0x3bc/0x514 [ 55.265906][ T4775] __should_failslab+0xbc/0x10c [ 55.266714][ T4775] should_failslab+0x10/0x28 [ 55.267492][ T4775] slab_pre_alloc_hook+0x64/0xe8 [ 55.268377][ T4775] kmem_cache_alloc_trace+0x98/0x3ec [ 55.269320][ T4775] device_add+0xbc/0xf90 [ 55.270009][ T4775] device_add_disk+0x2d0/0xacc [ 55.270854][ T4775] loop_add+0x510/0x6e0 [ 55.271584][ T4775] loop_control_ioctl+0x130/0x4e0 [ 55.272370][ T4775] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.273280][ T4775] invoke_syscall+0x98/0x2b0 [ 55.274062][ T4775] el0_svc_common+0x138/0x258 [ 55.274889][ T4775] do_el0_svc+0x58/0x13c [ 55.275591][ T4775] el0_svc+0x78/0x1d0 [ 55.276262][ T4775] el0t_64_sync_handler+0xcc/0xe4 [ 55.277113][ T4775] el0t_64_sync+0x1a0/0x1a4 [ 55.286746][ T4777] FAULT_INJECTION: forcing a failure. [ 55.286746][ T4777] name failslab, interval 1, probability 0, space 0, times 0 [ 55.288970][ T4777] CPU: 1 PID: 4777 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.290433][ T4777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.292081][ T4777] Call trace: [ 55.292569][ T4777] dump_backtrace+0x0/0x458 [ 55.293302][ T4777] show_stack+0x2c/0x3c [ 55.293973][ T4777] __dump_stack+0x30/0x40 [ 55.294682][ T4777] dump_stack_lvl+0xf4/0x15c [ 55.295458][ T4777] dump_stack+0x1c/0x5c [ 55.296153][ T4777] should_fail+0x3bc/0x514 [ 55.296910][ T4777] __should_failslab+0xbc/0x10c [ 55.297736][ T4777] should_failslab+0x10/0x28 [ 55.298496][ T4777] slab_pre_alloc_hook+0x64/0xe8 [ 55.299325][ T4777] __kmalloc_track_caller+0x70/0x358 [ 55.300244][ T4777] kstrdup+0xe4/0x15c [ 55.300955][ T4777] kstrdup_const+0x54/0x6c [ 55.301677][ T4777] kvasprintf_const+0x120/0x2e4 [ 55.302448][ T4777] kobject_set_name_vargs+0xd8/0x1c8 [ 55.303319][ T4777] dev_set_name+0xe8/0x13c [ 55.304095][ T4777] device_add_disk+0x258/0xacc [ 55.304951][ T4777] loop_add+0x510/0x6e0 [ 55.305647][ T4777] loop_control_ioctl+0x130/0x4e0 [ 55.306523][ T4777] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.307441][ T4777] invoke_syscall+0x98/0x2b0 [ 55.308273][ T4777] el0_svc_common+0x138/0x258 [ 55.309095][ T4777] do_el0_svc+0x58/0x13c [ 55.309805][ T4777] el0_svc+0x78/0x1d0 [ 55.310488][ T4777] el0t_64_sync_handler+0xcc/0xe4 [ 55.311354][ T4777] el0t_64_sync+0x1a0/0x1a4 [ 55.321406][ T4779] FAULT_INJECTION: forcing a failure. [ 55.321406][ T4779] name failslab, interval 1, probability 0, space 0, times 0 [ 55.323507][ T4779] CPU: 0 PID: 4779 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.325004][ T4779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.326722][ T4779] Call trace: [ 55.327333][ T4779] dump_backtrace+0x0/0x458 [ 55.328139][ T4779] show_stack+0x2c/0x3c [ 55.328900][ T4779] __dump_stack+0x30/0x40 [ 55.329619][ T4779] dump_stack_lvl+0xf4/0x15c [ 55.330408][ T4779] dump_stack+0x1c/0x5c [ 55.331103][ T4779] should_fail+0x3bc/0x514 [ 55.331876][ T4779] __should_failslab+0xbc/0x10c [ 55.332713][ T4779] should_failslab+0x10/0x28 [ 55.333455][ T4779] slab_pre_alloc_hook+0x64/0xe8 [ 55.334245][ T4779] kmem_cache_alloc_node_trace+0x9c/0x424 [ 55.335175][ T4779] iolatency_pd_alloc+0xac/0x164 [ 55.335991][ T4779] blkcg_activate_policy+0x204/0xa8c [ 55.336913][ T4779] blk_iolatency_init+0x22c/0x430 [ 55.337772][ T4779] blkcg_init_queue+0x3f0/0x484 [ 55.338604][ T4779] blk_alloc_queue+0x3cc/0x4a0 [ 55.339388][ T4779] __blk_mq_alloc_disk+0x5c/0x154 [ 55.340252][ T4779] loop_add+0x240/0x6e0 [ 55.340978][ T4779] loop_control_ioctl+0x130/0x4e0 [ 55.341815][ T4779] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.342681][ T4779] invoke_syscall+0x98/0x2b0 [ 55.343433][ T4779] el0_svc_common+0x138/0x258 [ 55.344286][ T4779] do_el0_svc+0x58/0x13c [ 55.345034][ T4779] el0_svc+0x78/0x1d0 [ 55.345716][ T4779] el0t_64_sync_handler+0xcc/0xe4 [ 55.346543][ T4779] el0t_64_sync+0x1a0/0x1a4 [ 55.363926][ T4781] FAULT_INJECTION: forcing a failure. [ 55.363926][ T4781] name failslab, interval 1, probability 0, space 0, times 0 [ 55.366319][ T4781] CPU: 1 PID: 4781 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.367788][ T4781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.369476][ T4781] Call trace: [ 55.370002][ T4781] dump_backtrace+0x0/0x458 [ 55.370736][ T4781] show_stack+0x2c/0x3c [ 55.371427][ T4781] __dump_stack+0x30/0x40 [ 55.372169][ T4781] dump_stack_lvl+0xf4/0x15c [ 55.372991][ T4781] dump_stack+0x1c/0x5c [ 55.373755][ T4781] should_fail+0x3bc/0x514 [ 55.374480][ T4781] __should_failslab+0xbc/0x10c [ 55.375303][ T4781] should_failslab+0x10/0x28 [ 55.376076][ T4781] slab_pre_alloc_hook+0x64/0xe8 [ 55.376874][ T4781] kmem_cache_alloc_trace+0x98/0x3ec [ 55.377693][ T4781] device_add+0xbc/0xf90 [ 55.378327][ T4781] device_add_disk+0x2d0/0xacc [ 55.379125][ T4781] loop_add+0x510/0x6e0 [ 55.379928][ T4781] loop_control_ioctl+0x130/0x4e0 [ 55.380795][ T4781] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.381673][ T4781] invoke_syscall+0x98/0x2b0 [ 55.382464][ T4781] el0_svc_common+0x138/0x258 [ 55.383245][ T4781] do_el0_svc+0x58/0x13c [ 55.383944][ T4781] el0_svc+0x78/0x1d0 [ 55.384593][ T4781] el0t_64_sync_handler+0xcc/0xe4 [ 55.385410][ T4781] el0t_64_sync+0x1a0/0x1a4 [ 55.396662][ T4783] FAULT_INJECTION: forcing a failure. [ 55.396662][ T4783] name failslab, interval 1, probability 0, space 0, times 0 [ 55.398820][ T4783] CPU: 0 PID: 4783 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.400364][ T4783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.402051][ T4783] Call trace: [ 55.402603][ T4783] dump_backtrace+0x0/0x458 [ 55.403356][ T4783] show_stack+0x2c/0x3c [ 55.404009][ T4783] __dump_stack+0x30/0x40 [ 55.404707][ T4783] dump_stack_lvl+0xf4/0x15c [ 55.405491][ T4783] dump_stack+0x1c/0x5c [ 55.406204][ T4783] should_fail+0x3bc/0x514 [ 55.407009][ T4783] __should_failslab+0xbc/0x10c [ 55.407869][ T4783] should_failslab+0x10/0x28 [ 55.408672][ T4783] slab_pre_alloc_hook+0x64/0xe8 [ 55.409430][ T4783] kmem_cache_alloc_trace+0x98/0x3ec [ 55.410352][ T4783] device_add+0xbc/0xf90 [ 55.411069][ T4783] device_add_disk+0x2d0/0xacc [ 55.411878][ T4783] loop_add+0x510/0x6e0 [ 55.412582][ T4783] loop_control_ioctl+0x130/0x4e0 [ 55.413405][ T4783] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.414232][ T4783] invoke_syscall+0x98/0x2b0 [ 55.415012][ T4783] el0_svc_common+0x138/0x258 [ 55.415857][ T4783] do_el0_svc+0x58/0x13c [ 55.416579][ T4783] el0_svc+0x78/0x1d0 [ 55.417285][ T4783] el0t_64_sync_handler+0xcc/0xe4 [ 55.418185][ T4783] el0t_64_sync+0x1a0/0x1a4 [ 55.430238][ T4785] FAULT_INJECTION: forcing a failure. [ 55.430238][ T4785] name failslab, interval 1, probability 0, space 0, times 0 [ 55.432856][ T4785] CPU: 0 PID: 4785 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.434360][ T4785] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.436162][ T4785] Call trace: [ 55.436707][ T4785] dump_backtrace+0x0/0x458 [ 55.437432][ T4785] show_stack+0x2c/0x3c [ 55.438096][ T4785] __dump_stack+0x30/0x40 [ 55.438820][ T4785] dump_stack_lvl+0xf4/0x15c [ 55.439596][ T4785] dump_stack+0x1c/0x5c [ 55.440256][ T4785] should_fail+0x3bc/0x514 [ 55.441039][ T4785] __should_failslab+0xbc/0x10c [ 55.441849][ T4785] should_failslab+0x10/0x28 [ 55.442574][ T4785] slab_pre_alloc_hook+0x64/0xe8 [ 55.443400][ T4785] kmem_cache_alloc_trace+0x98/0x3ec [ 55.444276][ T4785] device_add+0xbc/0xf90 [ 55.444996][ T4785] device_add_disk+0x2d0/0xacc [ 55.445750][ T4785] loop_add+0x510/0x6e0 [ 55.446422][ T4785] loop_control_ioctl+0x130/0x4e0 [ 55.447236][ T4785] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.448052][ T4785] invoke_syscall+0x98/0x2b0 [ 55.448833][ T4785] el0_svc_common+0x138/0x258 [ 55.449653][ T4785] do_el0_svc+0x58/0x13c [ 55.450351][ T4785] el0_svc+0x78/0x1d0 [ 55.450982][ T4785] el0t_64_sync_handler+0xcc/0xe4 [ 55.451796][ T4785] el0t_64_sync+0x1a0/0x1a4 [ 55.461705][ T4787] FAULT_INJECTION: forcing a failure. [ 55.461705][ T4787] name failslab, interval 1, probability 0, space 0, times 0 [ 55.464112][ T4787] CPU: 0 PID: 4787 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.465684][ T4787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.467342][ T4787] Call trace: [ 55.467854][ T4787] dump_backtrace+0x0/0x458 [ 55.468627][ T4787] show_stack+0x2c/0x3c [ 55.469379][ T4787] __dump_stack+0x30/0x40 [ 55.470126][ T4787] dump_stack_lvl+0xf4/0x15c [ 55.470864][ T4787] dump_stack+0x1c/0x5c [ 55.471579][ T4787] should_fail+0x3bc/0x514 [ 55.472312][ T4787] __should_failslab+0xbc/0x10c [ 55.473133][ T4787] should_failslab+0x10/0x28 [ 55.473953][ T4787] slab_pre_alloc_hook+0x64/0xe8 [ 55.474739][ T4787] __kmalloc_track_caller+0x70/0x358 [ 55.475669][ T4787] kstrdup+0xe4/0x15c [ 55.476370][ T4787] kstrdup_const+0x54/0x6c [ 55.477116][ T4787] kvasprintf_const+0x120/0x2e4 [ 55.477954][ T4787] kobject_set_name_vargs+0xd8/0x1c8 [ 55.478864][ T4787] dev_set_name+0xe8/0x13c [ 55.479574][ T4787] device_add_disk+0x258/0xacc [ 55.480362][ T4787] loop_add+0x510/0x6e0 [ 55.481114][ T4787] loop_control_ioctl+0x130/0x4e0 [ 55.481960][ T4787] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.482787][ T4787] invoke_syscall+0x98/0x2b0 [ 55.483609][ T4787] el0_svc_common+0x138/0x258 [ 55.484424][ T4787] do_el0_svc+0x58/0x13c [ 55.485099][ T4787] el0_svc+0x78/0x1d0 [ 55.485730][ T4787] el0t_64_sync_handler+0xcc/0xe4 [ 55.486561][ T4787] el0t_64_sync+0x1a0/0x1a4 [ 55.497408][ T4789] FAULT_INJECTION: forcing a failure. [ 55.497408][ T4789] name failslab, interval 1, probability 0, space 0, times 0 [ 55.499504][ T4789] CPU: 1 PID: 4789 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.501110][ T4789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.502860][ T4789] Call trace: [ 55.503478][ T4789] dump_backtrace+0x0/0x458 [ 55.504225][ T4789] show_stack+0x2c/0x3c [ 55.504915][ T4789] __dump_stack+0x30/0x40 [ 55.505644][ T4789] dump_stack_lvl+0xf4/0x15c [ 55.506382][ T4789] dump_stack+0x1c/0x5c [ 55.507102][ T4789] should_fail+0x3bc/0x514 [ 55.507859][ T4789] __should_failslab+0xbc/0x10c [ 55.508709][ T4789] should_failslab+0x10/0x28 [ 55.509455][ T4789] slab_pre_alloc_hook+0x64/0xe8 [ 55.510313][ T4789] kmem_cache_alloc+0x94/0x3d4 [ 55.511053][ T4789] __debug_object_init+0x7c8/0xa0c [ 55.511954][ T4789] debug_object_init+0x20/0x2c [ 55.512785][ T4789] __percpu_counter_init+0x10c/0x26c [ 55.513682][ T4789] blkg_rwstat_init+0x104/0x2b8 [ 55.514427][ T4789] throtl_pd_alloc+0xc0/0x4ec [ 55.515174][ T4789] blkcg_activate_policy+0x204/0xa8c [ 55.516022][ T4789] blk_throtl_init+0x308/0x3ec [ 55.516824][ T4789] blkcg_init_queue+0x3cc/0x484 [ 55.517621][ T4789] blk_alloc_queue+0x3cc/0x4a0 [ 55.518469][ T4789] __blk_mq_alloc_disk+0x5c/0x154 [ 55.519334][ T4789] loop_add+0x240/0x6e0 [ 55.520033][ T4789] loop_control_ioctl+0x130/0x4e0 [ 55.520891][ T4789] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.521752][ T4789] invoke_syscall+0x98/0x2b0 [ 55.522528][ T4789] el0_svc_common+0x138/0x258 [ 55.523321][ T4789] do_el0_svc+0x58/0x13c [ 55.524115][ T4789] el0_svc+0x78/0x1d0 [ 55.524799][ T4789] el0t_64_sync_handler+0xcc/0xe4 [ 55.525662][ T4789] el0t_64_sync+0x1a0/0x1a4 [ 55.542878][ T4791] FAULT_INJECTION: forcing a failure. [ 55.542878][ T4791] name failslab, interval 1, probability 0, space 0, times 0 [ 55.544979][ T4791] CPU: 1 PID: 4791 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.546359][ T4791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.547998][ T4791] Call trace: [ 55.548547][ T4791] dump_backtrace+0x0/0x458 [ 55.549239][ T4791] show_stack+0x2c/0x3c [ 55.549930][ T4791] __dump_stack+0x30/0x40 [ 55.550645][ T4791] dump_stack_lvl+0xf4/0x15c [ 55.551438][ T4791] dump_stack+0x1c/0x5c [ 55.552105][ T4791] should_fail+0x3bc/0x514 [ 55.552837][ T4791] __should_failslab+0xbc/0x10c [ 55.553635][ T4791] should_failslab+0x10/0x28 [ 55.554471][ T4791] slab_pre_alloc_hook+0x64/0xe8 [ 55.555347][ T4791] kmem_cache_alloc_trace+0x98/0x3ec [ 55.556253][ T4791] device_add+0xbc/0xf90 [ 55.556971][ T4791] device_add_disk+0x2d0/0xacc [ 55.557888][ T4791] loop_add+0x510/0x6e0 [ 55.558535][ T4791] loop_control_ioctl+0x130/0x4e0 [ 55.559404][ T4791] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.560224][ T4791] invoke_syscall+0x98/0x2b0 [ 55.561026][ T4791] el0_svc_common+0x138/0x258 [ 55.561814][ T4791] do_el0_svc+0x58/0x13c [ 55.562548][ T4791] el0_svc+0x78/0x1d0 [ 55.563212][ T4791] el0t_64_sync_handler+0xcc/0xe4 [ 55.564077][ T4791] el0t_64_sync+0x1a0/0x1a4 1970/01/01 00:00:55 executed programs: 95 [ 55.576508][ T4793] FAULT_INJECTION: forcing a failure. [ 55.576508][ T4793] name failslab, interval 1, probability 0, space 0, times 0 [ 55.578664][ T4793] CPU: 0 PID: 4793 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.580283][ T4793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.581967][ T4793] Call trace: [ 55.582502][ T4793] dump_backtrace+0x0/0x458 [ 55.583290][ T4793] show_stack+0x2c/0x3c [ 55.584025][ T4793] __dump_stack+0x30/0x40 [ 55.584788][ T4793] dump_stack_lvl+0xf4/0x15c [ 55.585610][ T4793] dump_stack+0x1c/0x5c [ 55.586360][ T4793] should_fail+0x3bc/0x514 [ 55.587138][ T4793] __should_failslab+0xbc/0x10c [ 55.587925][ T4793] should_failslab+0x10/0x28 [ 55.588735][ T4793] slab_pre_alloc_hook+0x64/0xe8 [ 55.589600][ T4793] kmem_cache_alloc_node_trace+0x9c/0x424 [ 55.590580][ T4793] iolatency_pd_alloc+0xac/0x164 [ 55.591381][ T4793] blkcg_activate_policy+0x204/0xa8c [ 55.592317][ T4793] blk_iolatency_init+0x22c/0x430 [ 55.593260][ T4793] blkcg_init_queue+0x3f0/0x484 [ 55.594105][ T4793] blk_alloc_queue+0x3cc/0x4a0 [ 55.594904][ T4793] __blk_mq_alloc_disk+0x5c/0x154 [ 55.595768][ T4793] loop_add+0x240/0x6e0 [ 55.596489][ T4793] loop_control_ioctl+0x130/0x4e0 [ 55.597348][ T4793] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.598203][ T4793] invoke_syscall+0x98/0x2b0 [ 55.598947][ T4793] el0_svc_common+0x138/0x258 [ 55.599709][ T4793] do_el0_svc+0x58/0x13c [ 55.600387][ T4793] el0_svc+0x78/0x1d0 [ 55.601066][ T4793] el0t_64_sync_handler+0xcc/0xe4 [ 55.601907][ T4793] el0t_64_sync+0x1a0/0x1a4 [ 55.617635][ T4795] FAULT_INJECTION: forcing a failure. [ 55.617635][ T4795] name failslab, interval 1, probability 0, space 0, times 0 [ 55.619865][ T4795] CPU: 1 PID: 4795 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.621441][ T4795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.623276][ T4795] Call trace: [ 55.623850][ T4795] dump_backtrace+0x0/0x458 [ 55.624559][ T4795] show_stack+0x2c/0x3c [ 55.625235][ T4795] __dump_stack+0x30/0x40 [ 55.625970][ T4795] dump_stack_lvl+0xf4/0x15c [ 55.626792][ T4795] dump_stack+0x1c/0x5c [ 55.627530][ T4795] should_fail+0x3bc/0x514 [ 55.628224][ T4795] __should_failslab+0xbc/0x10c [ 55.629044][ T4795] should_failslab+0x10/0x28 [ 55.629756][ T4795] slab_pre_alloc_hook+0x64/0xe8 [ 55.630600][ T4795] kmem_cache_alloc_trace+0x98/0x3ec [ 55.631514][ T4795] device_add+0xbc/0xf90 [ 55.632197][ T4795] device_add_disk+0x2d0/0xacc [ 55.633012][ T4795] loop_add+0x510/0x6e0 [ 55.633725][ T4795] loop_control_ioctl+0x130/0x4e0 [ 55.634575][ T4795] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.635383][ T4795] invoke_syscall+0x98/0x2b0 [ 55.636121][ T4795] el0_svc_common+0x138/0x258 [ 55.636919][ T4795] do_el0_svc+0x58/0x13c [ 55.637667][ T4795] el0_svc+0x78/0x1d0 [ 55.638384][ T4795] el0t_64_sync_handler+0xcc/0xe4 [ 55.639250][ T4795] el0t_64_sync+0x1a0/0x1a4 [ 55.650912][ T4797] FAULT_INJECTION: forcing a failure. [ 55.650912][ T4797] name failslab, interval 1, probability 0, space 0, times 0 [ 55.654137][ T4797] CPU: 1 PID: 4797 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.655679][ T4797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.657425][ T4797] Call trace: [ 55.657960][ T4797] dump_backtrace+0x0/0x458 [ 55.658701][ T4797] show_stack+0x2c/0x3c [ 55.659358][ T4797] __dump_stack+0x30/0x40 [ 55.660088][ T4797] dump_stack_lvl+0xf4/0x15c [ 55.660830][ T4797] dump_stack+0x1c/0x5c [ 55.661541][ T4797] should_fail+0x3bc/0x514 [ 55.662337][ T4797] __should_failslab+0xbc/0x10c [ 55.663195][ T4797] should_failslab+0x10/0x28 [ 55.664023][ T4797] slab_pre_alloc_hook+0x64/0xe8 [ 55.664835][ T4797] kmem_cache_alloc_trace+0x98/0x3ec [ 55.665724][ T4797] device_add+0xbc/0xf90 [ 55.666421][ T4797] device_add_disk+0x2d0/0xacc [ 55.667244][ T4797] loop_add+0x510/0x6e0 [ 55.667967][ T4797] loop_control_ioctl+0x130/0x4e0 [ 55.668786][ T4797] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.669699][ T4797] invoke_syscall+0x98/0x2b0 [ 55.670497][ T4797] el0_svc_common+0x138/0x258 [ 55.671265][ T4797] do_el0_svc+0x58/0x13c [ 55.671959][ T4797] el0_svc+0x78/0x1d0 [ 55.672634][ T4797] el0t_64_sync_handler+0xcc/0xe4 [ 55.673489][ T4797] el0t_64_sync+0x1a0/0x1a4 [ 55.683904][ T4799] FAULT_INJECTION: forcing a failure. [ 55.683904][ T4799] name failslab, interval 1, probability 0, space 0, times 0 [ 55.686269][ T4799] CPU: 0 PID: 4799 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.687844][ T4799] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.689533][ T4799] Call trace: [ 55.690125][ T4799] dump_backtrace+0x0/0x458 [ 55.690918][ T4799] show_stack+0x2c/0x3c [ 55.691647][ T4799] __dump_stack+0x30/0x40 [ 55.692391][ T4799] dump_stack_lvl+0xf4/0x15c [ 55.693205][ T4799] dump_stack+0x1c/0x5c [ 55.693901][ T4799] should_fail+0x3bc/0x514 [ 55.694528][ T4799] __should_failslab+0xbc/0x10c [ 55.695380][ T4799] should_failslab+0x10/0x28 [ 55.696160][ T4799] slab_pre_alloc_hook+0x64/0xe8 [ 55.697020][ T4799] kmem_cache_alloc_trace+0x98/0x3ec [ 55.697887][ T4799] device_add+0xbc/0xf90 [ 55.698674][ T4799] device_add_disk+0x2d0/0xacc [ 55.699472][ T4799] loop_add+0x510/0x6e0 [ 55.700168][ T4799] loop_control_ioctl+0x130/0x4e0 [ 55.701026][ T4799] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.701802][ T4799] invoke_syscall+0x98/0x2b0 [ 55.702600][ T4799] el0_svc_common+0x138/0x258 [ 55.703426][ T4799] do_el0_svc+0x58/0x13c [ 55.704135][ T4799] el0_svc+0x78/0x1d0 [ 55.704895][ T4799] el0t_64_sync_handler+0xcc/0xe4 [ 55.705795][ T4799] el0t_64_sync+0x1a0/0x1a4 [ 55.718927][ T4801] FAULT_INJECTION: forcing a failure. [ 55.718927][ T4801] name failslab, interval 1, probability 0, space 0, times 0 [ 55.721074][ T4801] CPU: 0 PID: 4801 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.722631][ T4801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.724257][ T4801] Call trace: [ 55.724791][ T4801] dump_backtrace+0x0/0x458 [ 55.725542][ T4801] show_stack+0x2c/0x3c [ 55.726250][ T4801] __dump_stack+0x30/0x40 [ 55.726981][ T4801] dump_stack_lvl+0xf4/0x15c [ 55.727762][ T4801] dump_stack+0x1c/0x5c [ 55.728443][ T4801] should_fail+0x3bc/0x514 [ 55.729140][ T4801] __should_failslab+0xbc/0x10c [ 55.729970][ T4801] should_failslab+0x10/0x28 [ 55.730740][ T4801] slab_pre_alloc_hook+0x64/0xe8 [ 55.731580][ T4801] kmem_cache_alloc+0x94/0x3d4 [ 55.732425][ T4801] __debug_object_init+0x750/0xa0c [ 55.733296][ T4801] debug_object_init+0x20/0x2c [ 55.734069][ T4801] __init_work+0x58/0x68 [ 55.734763][ T4801] blk_mq_realloc_hw_ctxs+0x458/0x133c [ 55.735763][ T4801] blk_mq_init_allocated_queue+0x36c/0x158c [ 55.736836][ T4801] __blk_mq_alloc_disk+0x88/0x154 [ 55.737788][ T4801] loop_add+0x240/0x6e0 [ 55.738491][ T4801] loop_control_ioctl+0x130/0x4e0 [ 55.739327][ T4801] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.740161][ T4801] invoke_syscall+0x98/0x2b0 [ 55.740964][ T4801] el0_svc_common+0x138/0x258 [ 55.741740][ T4801] do_el0_svc+0x58/0x13c [ 55.742444][ T4801] el0_svc+0x78/0x1d0 [ 55.743130][ T4801] el0t_64_sync_handler+0xcc/0xe4 [ 55.744005][ T4801] el0t_64_sync+0x1a0/0x1a4 [ 55.758513][ T4803] FAULT_INJECTION: forcing a failure. [ 55.758513][ T4803] name failslab, interval 1, probability 0, space 0, times 0 [ 55.760953][ T4803] CPU: 1 PID: 4803 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.762424][ T4803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.764132][ T4803] Call trace: [ 55.764676][ T4803] dump_backtrace+0x0/0x458 [ 55.765451][ T4803] show_stack+0x2c/0x3c [ 55.766164][ T4803] __dump_stack+0x30/0x40 [ 55.766933][ T4803] dump_stack_lvl+0xf4/0x15c [ 55.767680][ T4803] dump_stack+0x1c/0x5c [ 55.768415][ T4803] should_fail+0x3bc/0x514 [ 55.769205][ T4803] __should_failslab+0xbc/0x10c [ 55.770091][ T4803] should_failslab+0x10/0x28 [ 55.770874][ T4803] slab_pre_alloc_hook+0x64/0xe8 [ 55.771739][ T4803] kmem_cache_alloc_trace+0x98/0x3ec [ 55.772598][ T4803] blk_iolatency_init+0x64/0x430 [ 55.773409][ T4803] blkcg_init_queue+0x3f0/0x484 [ 55.774234][ T4803] blk_alloc_queue+0x3cc/0x4a0 [ 55.775016][ T4803] __blk_mq_alloc_disk+0x5c/0x154 [ 55.775811][ T4803] loop_add+0x240/0x6e0 [ 55.776534][ T4803] loop_control_ioctl+0x130/0x4e0 [ 55.777368][ T4803] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.778169][ T4803] invoke_syscall+0x98/0x2b0 [ 55.778962][ T4803] el0_svc_common+0x138/0x258 [ 55.779708][ T4803] do_el0_svc+0x58/0x13c [ 55.780404][ T4803] el0_svc+0x78/0x1d0 [ 55.781058][ T4803] el0t_64_sync_handler+0xcc/0xe4 [ 55.781889][ T4803] el0t_64_sync+0x1a0/0x1a4 [ 55.795099][ T4805] FAULT_INJECTION: forcing a failure. [ 55.795099][ T4805] name failslab, interval 1, probability 0, space 0, times 0 [ 55.797463][ T4805] CPU: 0 PID: 4805 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.799022][ T4805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.800798][ T4805] Call trace: [ 55.801311][ T4805] dump_backtrace+0x0/0x458 [ 55.802107][ T4805] show_stack+0x2c/0x3c [ 55.802873][ T4805] __dump_stack+0x30/0x40 [ 55.803621][ T4805] dump_stack_lvl+0xf4/0x15c [ 55.804390][ T4805] dump_stack+0x1c/0x5c [ 55.805045][ T4805] should_fail+0x3bc/0x514 [ 55.805770][ T4805] __should_failslab+0xbc/0x10c [ 55.806554][ T4805] should_failslab+0x10/0x28 [ 55.807367][ T4805] slab_pre_alloc_hook+0x64/0xe8 [ 55.808227][ T4805] __kmalloc_track_caller+0x70/0x358 [ 55.809132][ T4805] kstrdup+0xe4/0x15c [ 55.809779][ T4805] kstrdup_const+0x54/0x6c [ 55.810535][ T4805] kvasprintf_const+0x120/0x2e4 [ 55.811360][ T4805] kobject_set_name_vargs+0xd8/0x1c8 [ 55.812271][ T4805] dev_set_name+0xe8/0x13c [ 55.813036][ T4805] device_add_disk+0x258/0xacc [ 55.813809][ T4805] loop_add+0x510/0x6e0 [ 55.814483][ T4805] loop_control_ioctl+0x130/0x4e0 [ 55.815286][ T4805] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.816106][ T4805] invoke_syscall+0x98/0x2b0 [ 55.816828][ T4805] el0_svc_common+0x138/0x258 [ 55.817637][ T4805] do_el0_svc+0x58/0x13c [ 55.818362][ T4805] el0_svc+0x78/0x1d0 [ 55.819003][ T4805] el0t_64_sync_handler+0xcc/0xe4 [ 55.819790][ T4805] el0t_64_sync+0x1a0/0x1a4 [ 55.830641][ T4807] FAULT_INJECTION: forcing a failure. [ 55.830641][ T4807] name failslab, interval 1, probability 0, space 0, times 0 [ 55.832944][ T4807] CPU: 0 PID: 4807 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.834363][ T4807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.836099][ T4807] Call trace: [ 55.836599][ T4807] dump_backtrace+0x0/0x458 [ 55.837351][ T4807] show_stack+0x2c/0x3c [ 55.838038][ T4807] __dump_stack+0x30/0x40 [ 55.838758][ T4807] dump_stack_lvl+0xf4/0x15c [ 55.839511][ T4807] dump_stack+0x1c/0x5c [ 55.840244][ T4807] should_fail+0x3bc/0x514 [ 55.841018][ T4807] __should_failslab+0xbc/0x10c [ 55.841824][ T4807] should_failslab+0x10/0x28 [ 55.842557][ T4807] slab_pre_alloc_hook+0x64/0xe8 [ 55.843399][ T4807] __kmalloc_node+0xb8/0x508 [ 55.844158][ T4807] memcg_alloc_page_obj_cgroups+0x80/0x170 [ 55.845130][ T4807] new_slab+0x114/0x544 [ 55.845864][ T4807] ___slab_alloc+0x6b4/0xd8c [ 55.846620][ T4807] __slab_alloc+0x68/0xc0 [ 55.847246][ T4807] kmem_cache_alloc+0x2a4/0x3d4 [ 55.848030][ T4807] bdev_alloc_inode+0x24/0x60 [ 55.848864][ T4807] new_inode_pseudo+0x68/0x1fc [ 55.849724][ T4807] new_inode+0x38/0x174 [ 55.850407][ T4807] bdev_alloc+0x30/0x1f8 [ 55.851096][ T4807] __alloc_disk_node+0xbc/0x450 [ 55.851977][ T4807] __blk_mq_alloc_disk+0xe8/0x154 [ 55.852832][ T4807] loop_add+0x240/0x6e0 [ 55.853589][ T4807] loop_control_ioctl+0x130/0x4e0 [ 55.854456][ T4807] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.855265][ T4807] invoke_syscall+0x98/0x2b0 [ 55.856048][ T4807] el0_svc_common+0x138/0x258 [ 55.856893][ T4807] do_el0_svc+0x58/0x13c [ 55.857602][ T4807] el0_svc+0x78/0x1d0 [ 55.858274][ T4807] el0t_64_sync_handler+0xcc/0xe4 [ 55.859124][ T4807] el0t_64_sync+0x1a0/0x1a4 [ 55.876445][ T4809] FAULT_INJECTION: forcing a failure. [ 55.876445][ T4809] name failslab, interval 1, probability 0, space 0, times 0 [ 55.878616][ T4809] CPU: 0 PID: 4809 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.880129][ T4809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.881812][ T4809] Call trace: [ 55.882342][ T4809] dump_backtrace+0x0/0x458 [ 55.883110][ T4809] show_stack+0x2c/0x3c [ 55.883819][ T4809] __dump_stack+0x30/0x40 [ 55.884587][ T4809] dump_stack_lvl+0xf4/0x15c [ 55.885403][ T4809] dump_stack+0x1c/0x5c [ 55.886074][ T4809] should_fail+0x3bc/0x514 [ 55.886791][ T4809] __should_failslab+0xbc/0x10c [ 55.887560][ T4809] should_failslab+0x10/0x28 [ 55.888336][ T4809] slab_pre_alloc_hook+0x64/0xe8 [ 55.889188][ T4809] kmem_cache_alloc+0x94/0x3d4 [ 55.890028][ T4809] __debug_object_init+0x69c/0xa0c [ 55.890855][ T4809] debug_object_init+0x20/0x2c [ 55.891611][ T4809] __percpu_counter_init+0x10c/0x26c [ 55.892514][ T4809] blkg_rwstat_init+0x1c4/0x2b8 [ 55.893273][ T4809] throtl_pd_alloc+0xc0/0x4ec [ 55.894050][ T4809] blkcg_activate_policy+0x204/0xa8c [ 55.895014][ T4809] blk_throtl_init+0x308/0x3ec [ 55.895830][ T4809] blkcg_init_queue+0x3cc/0x484 [ 55.896637][ T4809] blk_alloc_queue+0x3cc/0x4a0 [ 55.897423][ T4809] __blk_mq_alloc_disk+0x5c/0x154 [ 55.898278][ T4809] loop_add+0x240/0x6e0 [ 55.898999][ T4809] loop_control_ioctl+0x130/0x4e0 [ 55.899915][ T4809] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.900766][ T4809] invoke_syscall+0x98/0x2b0 [ 55.901504][ T4809] el0_svc_common+0x138/0x258 [ 55.902357][ T4809] do_el0_svc+0x58/0x13c [ 55.903023][ T4809] el0_svc+0x78/0x1d0 [ 55.903785][ T4809] el0t_64_sync_handler+0xcc/0xe4 [ 55.904658][ T4809] el0t_64_sync+0x1a0/0x1a4 [ 55.920292][ T4811] FAULT_INJECTION: forcing a failure. [ 55.920292][ T4811] name failslab, interval 1, probability 0, space 0, times 0 [ 55.922826][ T4811] CPU: 0 PID: 4811 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.924442][ T4811] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.926163][ T4811] Call trace: [ 55.926711][ T4811] dump_backtrace+0x0/0x458 [ 55.927516][ T4811] show_stack+0x2c/0x3c [ 55.928239][ T4811] __dump_stack+0x30/0x40 [ 55.928988][ T4811] dump_stack_lvl+0xf4/0x15c [ 55.929756][ T4811] dump_stack+0x1c/0x5c [ 55.930499][ T4811] should_fail+0x3bc/0x514 [ 55.931228][ T4811] __should_failslab+0xbc/0x10c [ 55.932028][ T4811] should_failslab+0x10/0x28 [ 55.932840][ T4811] slab_pre_alloc_hook+0x64/0xe8 [ 55.933683][ T4811] kmem_cache_alloc_trace+0x98/0x3ec [ 55.934602][ T4811] device_add+0xbc/0xf90 [ 55.935346][ T4811] device_add_disk+0x2d0/0xacc [ 55.936200][ T4811] loop_add+0x510/0x6e0 [ 55.936900][ T4811] loop_control_ioctl+0x130/0x4e0 [ 55.937752][ T4811] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.938606][ T4811] invoke_syscall+0x98/0x2b0 [ 55.939434][ T4811] el0_svc_common+0x138/0x258 [ 55.940193][ T4811] do_el0_svc+0x58/0x13c [ 55.940917][ T4811] el0_svc+0x78/0x1d0 [ 55.941622][ T4811] el0t_64_sync_handler+0xcc/0xe4 [ 55.942475][ T4811] el0t_64_sync+0x1a0/0x1a4 [ 55.954874][ T4813] FAULT_INJECTION: forcing a failure. [ 55.954874][ T4813] name failslab, interval 1, probability 0, space 0, times 0 [ 55.956956][ T4813] CPU: 0 PID: 4813 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.958503][ T4813] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.960196][ T4813] Call trace: [ 55.960715][ T4813] dump_backtrace+0x0/0x458 [ 55.961509][ T4813] show_stack+0x2c/0x3c [ 55.962328][ T4813] __dump_stack+0x30/0x40 [ 55.963054][ T4813] dump_stack_lvl+0xf4/0x15c [ 55.963801][ T4813] dump_stack+0x1c/0x5c [ 55.964525][ T4813] should_fail+0x3bc/0x514 [ 55.965275][ T4813] __should_failslab+0xbc/0x10c [ 55.966224][ T4813] should_failslab+0x10/0x28 [ 55.967047][ T4813] slab_pre_alloc_hook+0x64/0xe8 [ 55.967939][ T4813] kmem_cache_alloc_node_trace+0x9c/0x424 [ 55.968949][ T4813] iolatency_pd_alloc+0xac/0x164 [ 55.969783][ T4813] blkcg_activate_policy+0x204/0xa8c [ 55.970673][ T4813] blk_iolatency_init+0x22c/0x430 [ 55.971514][ T4813] blkcg_init_queue+0x3f0/0x484 [ 55.972314][ T4813] blk_alloc_queue+0x3cc/0x4a0 [ 55.973158][ T4813] __blk_mq_alloc_disk+0x5c/0x154 [ 55.974018][ T4813] loop_add+0x240/0x6e0 [ 55.974730][ T4813] loop_control_ioctl+0x130/0x4e0 [ 55.975560][ T4813] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.976327][ T4813] invoke_syscall+0x98/0x2b0 [ 55.977150][ T4813] el0_svc_common+0x138/0x258 [ 55.977947][ T4813] do_el0_svc+0x58/0x13c [ 55.978722][ T4813] el0_svc+0x78/0x1d0 [ 55.979400][ T4813] el0t_64_sync_handler+0xcc/0xe4 [ 55.980238][ T4813] el0t_64_sync+0x1a0/0x1a4 [ 55.992985][ T4815] FAULT_INJECTION: forcing a failure. [ 55.992985][ T4815] name failslab, interval 1, probability 0, space 0, times 0 [ 55.995373][ T4815] CPU: 1 PID: 4815 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.996739][ T4815] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.998511][ T4815] Call trace: [ 55.999060][ T4815] dump_backtrace+0x0/0x458 [ 55.999838][ T4815] show_stack+0x2c/0x3c [ 56.000525][ T4815] __dump_stack+0x30/0x40 [ 56.001276][ T4815] dump_stack_lvl+0xf4/0x15c [ 56.002102][ T4815] dump_stack+0x1c/0x5c [ 56.002711][ T4815] should_fail+0x3bc/0x514 [ 56.003446][ T4815] __should_failslab+0xbc/0x10c [ 56.004304][ T4815] should_failslab+0x10/0x28 [ 56.005104][ T4815] slab_pre_alloc_hook+0x64/0xe8 [ 56.005967][ T4815] kmem_cache_alloc+0x94/0x3d4 [ 56.006851][ T4815] __debug_object_init+0x750/0xa0c [ 56.007735][ T4815] debug_object_init+0x20/0x2c [ 56.008510][ T4815] init_timer_key+0x54/0x410 [ 56.009320][ T4815] blk_mq_realloc_hw_ctxs+0x514/0x133c [ 56.010217][ T4815] blk_mq_init_allocated_queue+0x36c/0x158c [ 56.011178][ T4815] __blk_mq_alloc_disk+0x88/0x154 [ 56.012001][ T4815] loop_add+0x240/0x6e0 [ 56.012693][ T4815] loop_control_ioctl+0x130/0x4e0 [ 56.013532][ T4815] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.014386][ T4815] invoke_syscall+0x98/0x2b0 [ 56.015139][ T4815] el0_svc_common+0x138/0x258 [ 56.015896][ T4815] do_el0_svc+0x58/0x13c [ 56.016588][ T4815] el0_svc+0x78/0x1d0 [ 56.017266][ T4815] el0t_64_sync_handler+0xcc/0xe4 [ 56.018113][ T4815] el0t_64_sync+0x1a0/0x1a4 [ 56.033163][ T4817] FAULT_INJECTION: forcing a failure. [ 56.033163][ T4817] name failslab, interval 1, probability 0, space 0, times 0 [ 56.035549][ T4817] CPU: 1 PID: 4817 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.037157][ T4817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.038881][ T4817] Call trace: [ 56.039465][ T4817] dump_backtrace+0x0/0x458 [ 56.040241][ T4817] show_stack+0x2c/0x3c [ 56.040954][ T4817] __dump_stack+0x30/0x40 [ 56.041720][ T4817] dump_stack_lvl+0xf4/0x15c [ 56.042537][ T4817] dump_stack+0x1c/0x5c [ 56.043250][ T4817] should_fail+0x3bc/0x514 [ 56.043979][ T4817] __should_failslab+0xbc/0x10c [ 56.044747][ T4817] should_failslab+0x10/0x28 [ 56.045536][ T4817] slab_pre_alloc_hook+0x64/0xe8 [ 56.046390][ T4817] kmem_cache_alloc_trace+0x98/0x3ec [ 56.047325][ T4817] device_add+0xbc/0xf90 [ 56.048013][ T4817] device_add_disk+0x2d0/0xacc [ 56.048855][ T4817] loop_add+0x510/0x6e0 [ 56.049576][ T4817] loop_control_ioctl+0x130/0x4e0 [ 56.050436][ T4817] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.051233][ T4817] invoke_syscall+0x98/0x2b0 [ 56.052035][ T4817] el0_svc_common+0x138/0x258 [ 56.052862][ T4817] do_el0_svc+0x58/0x13c [ 56.053632][ T4817] el0_svc+0x78/0x1d0 [ 56.054298][ T4817] el0t_64_sync_handler+0xcc/0xe4 [ 56.055192][ T4817] el0t_64_sync+0x1a0/0x1a4 [ 56.065217][ T4819] FAULT_INJECTION: forcing a failure. [ 56.065217][ T4819] name failslab, interval 1, probability 0, space 0, times 0 [ 56.067497][ T4819] CPU: 0 PID: 4819 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.069056][ T4819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.070793][ T4819] Call trace: [ 56.071382][ T4819] dump_backtrace+0x0/0x458 [ 56.072155][ T4819] show_stack+0x2c/0x3c [ 56.072915][ T4819] __dump_stack+0x30/0x40 [ 56.073709][ T4819] dump_stack_lvl+0xf4/0x15c [ 56.074541][ T4819] dump_stack+0x1c/0x5c [ 56.075228][ T4819] should_fail+0x3bc/0x514 [ 56.075993][ T4819] __should_failslab+0xbc/0x10c [ 56.076821][ T4819] should_failslab+0x10/0x28 [ 56.077581][ T4819] slab_pre_alloc_hook+0x64/0xe8 [ 56.078381][ T4819] kmem_cache_alloc_trace+0x98/0x3ec [ 56.079332][ T4819] blk_iolatency_init+0x64/0x430 [ 56.080257][ T4819] blkcg_init_queue+0x3f0/0x484 [ 56.081066][ T4819] blk_alloc_queue+0x3cc/0x4a0 [ 56.081875][ T4819] __blk_mq_alloc_disk+0x5c/0x154 [ 56.082711][ T4819] loop_add+0x240/0x6e0 [ 56.083425][ T4819] loop_control_ioctl+0x130/0x4e0 [ 56.084272][ T4819] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.085109][ T4819] invoke_syscall+0x98/0x2b0 [ 56.085842][ T4819] el0_svc_common+0x138/0x258 [ 56.086594][ T4819] do_el0_svc+0x58/0x13c [ 56.087300][ T4819] el0_svc+0x78/0x1d0 [ 56.087947][ T4819] el0t_64_sync_handler+0xcc/0xe4 [ 56.088806][ T4819] el0t_64_sync+0x1a0/0x1a4 [ 56.099243][ T4821] FAULT_INJECTION: forcing a failure. [ 56.099243][ T4821] name failslab, interval 1, probability 0, space 0, times 0 [ 56.101391][ T4821] CPU: 0 PID: 4821 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.102889][ T4821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.104620][ T4821] Call trace: [ 56.105148][ T4821] dump_backtrace+0x0/0x458 [ 56.105924][ T4821] show_stack+0x2c/0x3c [ 56.106631][ T4821] __dump_stack+0x30/0x40 [ 56.107389][ T4821] dump_stack_lvl+0xf4/0x15c [ 56.108116][ T4821] dump_stack+0x1c/0x5c [ 56.108855][ T4821] should_fail+0x3bc/0x514 [ 56.109610][ T4821] __should_failslab+0xbc/0x10c [ 56.110386][ T4821] should_failslab+0x10/0x28 [ 56.111179][ T4821] slab_pre_alloc_hook+0x64/0xe8 [ 56.112024][ T4821] kmem_cache_alloc_trace+0x98/0x3ec [ 56.112954][ T4821] device_add+0xbc/0xf90 [ 56.113631][ T4821] device_add_disk+0x2d0/0xacc [ 56.114415][ T4821] loop_add+0x510/0x6e0 [ 56.115158][ T4821] loop_control_ioctl+0x130/0x4e0 [ 56.116079][ T4821] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.116976][ T4821] invoke_syscall+0x98/0x2b0 [ 56.117810][ T4821] el0_svc_common+0x138/0x258 [ 56.118636][ T4821] do_el0_svc+0x58/0x13c [ 56.119413][ T4821] el0_svc+0x78/0x1d0 [ 56.120114][ T4821] el0t_64_sync_handler+0xcc/0xe4 [ 56.120958][ T4821] el0t_64_sync+0x1a0/0x1a4 [ 56.132953][ T4823] FAULT_INJECTION: forcing a failure. [ 56.132953][ T4823] name failslab, interval 1, probability 0, space 0, times 0 [ 56.135284][ T4823] CPU: 1 PID: 4823 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.136759][ T4823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.138509][ T4823] Call trace: [ 56.139018][ T4823] dump_backtrace+0x0/0x458 [ 56.139771][ T4823] show_stack+0x2c/0x3c [ 56.140578][ T4823] __dump_stack+0x30/0x40 [ 56.141223][ T4823] dump_stack_lvl+0xf4/0x15c [ 56.141895][ T4823] dump_stack+0x1c/0x5c [ 56.142597][ T4823] should_fail+0x3bc/0x514 [ 56.143371][ T4823] __should_failslab+0xbc/0x10c [ 56.144231][ T4823] should_failslab+0x10/0x28 [ 56.145049][ T4823] slab_pre_alloc_hook+0x64/0xe8 [ 56.145829][ T4823] kmem_cache_alloc+0x94/0x3d4 [ 56.146618][ T4823] __debug_object_init+0x688/0xa0c [ 56.147507][ T4823] debug_object_init+0x20/0x2c [ 56.148331][ T4823] __init_work+0x58/0x68 [ 56.148975][ T4823] pm_runtime_init+0x100/0x2b8 [ 56.149761][ T4823] device_initialize+0x1f0/0x480 [ 56.150628][ T4823] __alloc_disk_node+0x314/0x450 [ 56.151464][ T4823] __blk_mq_alloc_disk+0xe8/0x154 [ 56.152293][ T4823] loop_add+0x240/0x6e0 [ 56.153065][ T4823] loop_control_ioctl+0x130/0x4e0 [ 56.153864][ T4823] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.154599][ T4823] invoke_syscall+0x98/0x2b0 [ 56.155377][ T4823] el0_svc_common+0x138/0x258 [ 56.156135][ T4823] do_el0_svc+0x58/0x13c [ 56.156870][ T4823] el0_svc+0x78/0x1d0 [ 56.157549][ T4823] el0t_64_sync_handler+0xcc/0xe4 [ 56.158415][ T4823] el0t_64_sync+0x1a0/0x1a4 [ 56.174906][ T4825] FAULT_INJECTION: forcing a failure. [ 56.174906][ T4825] name failslab, interval 1, probability 0, space 0, times 0 [ 56.177157][ T4825] CPU: 1 PID: 4825 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.178649][ T4825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.180409][ T4825] Call trace: [ 56.180926][ T4825] dump_backtrace+0x0/0x458 [ 56.181688][ T4825] show_stack+0x2c/0x3c [ 56.182414][ T4825] __dump_stack+0x30/0x40 [ 56.183168][ T4825] dump_stack_lvl+0xf4/0x15c [ 56.183900][ T4825] dump_stack+0x1c/0x5c [ 56.184574][ T4825] should_fail+0x3bc/0x514 [ 56.185272][ T4825] __should_failslab+0xbc/0x10c [ 56.186077][ T4825] should_failslab+0x10/0x28 [ 56.186820][ T4825] slab_pre_alloc_hook+0x64/0xe8 [ 56.187677][ T4825] kmem_cache_alloc_trace+0x98/0x3ec [ 56.188614][ T4825] device_add+0xbc/0xf90 [ 56.189344][ T4825] device_add_disk+0x2d0/0xacc [ 56.190107][ T4825] loop_add+0x510/0x6e0 [ 56.190818][ T4825] loop_control_ioctl+0x130/0x4e0 [ 56.191690][ T4825] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.192520][ T4825] invoke_syscall+0x98/0x2b0 [ 56.193314][ T4825] el0_svc_common+0x138/0x258 [ 56.194066][ T4825] do_el0_svc+0x58/0x13c [ 56.194854][ T4825] el0_svc+0x78/0x1d0 [ 56.195501][ T4825] el0t_64_sync_handler+0xcc/0xe4 [ 56.196376][ T4825] el0t_64_sync+0x1a0/0x1a4 [ 56.208329][ T4827] FAULT_INJECTION: forcing a failure. [ 56.208329][ T4827] name failslab, interval 1, probability 0, space 0, times 0 [ 56.210690][ T4827] CPU: 1 PID: 4827 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.212187][ T4827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.213939][ T4827] Call trace: [ 56.214525][ T4827] dump_backtrace+0x0/0x458 [ 56.215356][ T4827] show_stack+0x2c/0x3c [ 56.216041][ T4827] __dump_stack+0x30/0x40 [ 56.216802][ T4827] dump_stack_lvl+0xf4/0x15c [ 56.217553][ T4827] dump_stack+0x1c/0x5c [ 56.218209][ T4827] should_fail+0x3bc/0x514 [ 56.218976][ T4827] __should_failslab+0xbc/0x10c [ 56.219753][ T4827] should_failslab+0x10/0x28 [ 56.220530][ T4827] slab_pre_alloc_hook+0x64/0xe8 [ 56.221381][ T4827] __kmalloc_track_caller+0x70/0x358 [ 56.222313][ T4827] kstrdup+0xe4/0x15c [ 56.223035][ T4827] kstrdup_const+0x54/0x6c [ 56.223746][ T4827] kvasprintf_const+0x120/0x2e4 [ 56.224572][ T4827] kobject_set_name_vargs+0xd8/0x1c8 [ 56.225446][ T4827] dev_set_name+0xe8/0x13c [ 56.226210][ T4827] device_add_disk+0x258/0xacc [ 56.226977][ T4827] loop_add+0x510/0x6e0 [ 56.227677][ T4827] loop_control_ioctl+0x130/0x4e0 [ 56.228544][ T4827] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.229405][ T4827] invoke_syscall+0x98/0x2b0 [ 56.230143][ T4827] el0_svc_common+0x138/0x258 [ 56.230909][ T4827] do_el0_svc+0x58/0x13c [ 56.231582][ T4827] el0_svc+0x78/0x1d0 [ 56.232275][ T4827] el0t_64_sync_handler+0xcc/0xe4 [ 56.233125][ T4827] el0t_64_sync+0x1a0/0x1a4 [ 56.245771][ T4829] FAULT_INJECTION: forcing a failure. [ 56.245771][ T4829] name failslab, interval 1, probability 0, space 0, times 0 [ 56.247928][ T4829] CPU: 1 PID: 4829 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.249403][ T4829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.251269][ T4829] Call trace: [ 56.251792][ T4829] dump_backtrace+0x0/0x458 [ 56.252545][ T4829] show_stack+0x2c/0x3c [ 56.253208][ T4829] __dump_stack+0x30/0x40 [ 56.253921][ T4829] dump_stack_lvl+0xf4/0x15c [ 56.254672][ T4829] dump_stack+0x1c/0x5c [ 56.255417][ T4829] should_fail+0x3bc/0x514 [ 56.256163][ T4829] __should_failslab+0xbc/0x10c [ 56.256955][ T4829] should_failslab+0x10/0x28 [ 56.257702][ T4829] slab_pre_alloc_hook+0x64/0xe8 [ 56.258562][ T4829] kmem_cache_alloc_node_trace+0x9c/0x424 [ 56.259501][ T4829] iolatency_pd_alloc+0xac/0x164 [ 56.260309][ T4829] blkcg_activate_policy+0x204/0xa8c [ 56.261195][ T4829] blk_iolatency_init+0x22c/0x430 [ 56.262089][ T4829] blkcg_init_queue+0x3f0/0x484 [ 56.262888][ T4829] blk_alloc_queue+0x3cc/0x4a0 [ 56.263682][ T4829] __blk_mq_alloc_disk+0x5c/0x154 [ 56.264514][ T4829] loop_add+0x240/0x6e0 [ 56.265206][ T4829] loop_control_ioctl+0x130/0x4e0 [ 56.265964][ T4829] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.266749][ T4829] invoke_syscall+0x98/0x2b0 [ 56.267509][ T4829] el0_svc_common+0x138/0x258 [ 56.268259][ T4829] do_el0_svc+0x58/0x13c [ 56.268933][ T4829] el0_svc+0x78/0x1d0 [ 56.269561][ T4829] el0t_64_sync_handler+0xcc/0xe4 [ 56.270392][ T4829] el0t_64_sync+0x1a0/0x1a4 [ 56.285622][ T4831] FAULT_INJECTION: forcing a failure. [ 56.285622][ T4831] name failslab, interval 1, probability 0, space 0, times 0 [ 56.287798][ T4831] CPU: 1 PID: 4831 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.289295][ T4831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.291003][ T4831] Call trace: [ 56.291522][ T4831] dump_backtrace+0x0/0x458 [ 56.292234][ T4831] show_stack+0x2c/0x3c [ 56.292868][ T4831] __dump_stack+0x30/0x40 [ 56.293557][ T4831] dump_stack_lvl+0xf4/0x15c [ 56.294282][ T4831] dump_stack+0x1c/0x5c [ 56.294920][ T4831] should_fail+0x3bc/0x514 [ 56.295583][ T4831] __should_failslab+0xbc/0x10c [ 56.296461][ T4831] should_failslab+0x10/0x28 [ 56.297228][ T4831] slab_pre_alloc_hook+0x64/0xe8 [ 56.298109][ T4831] kmem_cache_alloc+0x94/0x3d4 [ 56.298903][ T4831] __debug_object_init+0x7c8/0xa0c [ 56.299740][ T4831] debug_object_init+0x20/0x2c [ 56.300560][ T4831] __init_work+0x58/0x68 [ 56.301237][ T4831] blk_iolatency_init+0x2dc/0x430 [ 56.302033][ T4831] blkcg_init_queue+0x3f0/0x484 [ 56.302932][ T4831] blk_alloc_queue+0x3cc/0x4a0 [ 56.303675][ T4831] __blk_mq_alloc_disk+0x5c/0x154 [ 56.304547][ T4831] loop_add+0x240/0x6e0 [ 56.305250][ T4831] loop_control_ioctl+0x130/0x4e0 [ 56.306102][ T4831] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.306911][ T4831] invoke_syscall+0x98/0x2b0 [ 56.307654][ T4831] el0_svc_common+0x138/0x258 [ 56.308445][ T4831] do_el0_svc+0x58/0x13c [ 56.309156][ T4831] el0_svc+0x78/0x1d0 [ 56.309803][ T4831] el0t_64_sync_handler+0xcc/0xe4 [ 56.310627][ T4831] el0t_64_sync+0x1a0/0x1a4 [ 56.324894][ T4833] FAULT_INJECTION: forcing a failure. [ 56.324894][ T4833] name failslab, interval 1, probability 0, space 0, times 0 [ 56.327226][ T4833] CPU: 0 PID: 4833 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.328740][ T4833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.330441][ T4833] Call trace: [ 56.330988][ T4833] dump_backtrace+0x0/0x458 [ 56.331766][ T4833] show_stack+0x2c/0x3c [ 56.332453][ T4833] __dump_stack+0x30/0x40 [ 56.333164][ T4833] dump_stack_lvl+0xf4/0x15c [ 56.333945][ T4833] dump_stack+0x1c/0x5c [ 56.334627][ T4833] should_fail+0x3bc/0x514 [ 56.335371][ T4833] __should_failslab+0xbc/0x10c [ 56.336165][ T4833] should_failslab+0x10/0x28 [ 56.336986][ T4833] slab_pre_alloc_hook+0x64/0xe8 [ 56.337786][ T4833] kmem_cache_alloc_trace+0x98/0x3ec [ 56.338640][ T4833] device_add+0xbc/0xf90 [ 56.339327][ T4833] device_add_disk+0x2d0/0xacc [ 56.340164][ T4833] loop_add+0x510/0x6e0 [ 56.340911][ T4833] loop_control_ioctl+0x130/0x4e0 [ 56.341796][ T4833] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.342590][ T4833] invoke_syscall+0x98/0x2b0 [ 56.343404][ T4833] el0_svc_common+0x138/0x258 [ 56.344235][ T4833] do_el0_svc+0x58/0x13c [ 56.344979][ T4833] el0_svc+0x78/0x1d0 [ 56.345635][ T4833] el0t_64_sync_handler+0xcc/0xe4 [ 56.346485][ T4833] el0t_64_sync+0x1a0/0x1a4 [ 56.359146][ T4835] FAULT_INJECTION: forcing a failure. [ 56.359146][ T4835] name failslab, interval 1, probability 0, space 0, times 0 [ 56.361320][ T4835] CPU: 1 PID: 4835 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.362863][ T4835] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.364590][ T4835] Call trace: [ 56.365108][ T4835] dump_backtrace+0x0/0x458 [ 56.365831][ T4835] show_stack+0x2c/0x3c [ 56.366467][ T4835] __dump_stack+0x30/0x40 [ 56.367212][ T4835] dump_stack_lvl+0xf4/0x15c [ 56.367954][ T4835] dump_stack+0x1c/0x5c [ 56.368638][ T4835] should_fail+0x3bc/0x514 [ 56.369341][ T4835] __should_failslab+0xbc/0x10c [ 56.370183][ T4835] should_failslab+0x10/0x28 [ 56.370946][ T4835] slab_pre_alloc_hook+0x64/0xe8 [ 56.371816][ T4835] kmem_cache_alloc_node_trace+0x9c/0x424 [ 56.372768][ T4835] iolatency_pd_alloc+0xac/0x164 [ 56.373567][ T4835] blkcg_activate_policy+0x204/0xa8c [ 56.374454][ T4835] blk_iolatency_init+0x22c/0x430 [ 56.375302][ T4835] blkcg_init_queue+0x3f0/0x484 [ 56.376146][ T4835] blk_alloc_queue+0x3cc/0x4a0 [ 56.376974][ T4835] __blk_mq_alloc_disk+0x5c/0x154 [ 56.377820][ T4835] loop_add+0x240/0x6e0 [ 56.378494][ T4835] loop_control_ioctl+0x130/0x4e0 [ 56.379284][ T4835] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.380248][ T4835] invoke_syscall+0x98/0x2b0 [ 56.381017][ T4835] el0_svc_common+0x138/0x258 [ 56.381809][ T4835] do_el0_svc+0x58/0x13c [ 56.382540][ T4835] el0_svc+0x78/0x1d0 [ 56.383266][ T4835] el0t_64_sync_handler+0xcc/0xe4 [ 56.384149][ T4835] el0t_64_sync+0x1a0/0x1a4 [ 56.399460][ T4837] FAULT_INJECTION: forcing a failure. [ 56.399460][ T4837] name failslab, interval 1, probability 0, space 0, times 0 [ 56.401770][ T4837] CPU: 0 PID: 4837 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.403357][ T4837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.404938][ T4837] Call trace: [ 56.405534][ T4837] dump_backtrace+0x0/0x458 [ 56.406217][ T4837] show_stack+0x2c/0x3c [ 56.406896][ T4837] __dump_stack+0x30/0x40 [ 56.407662][ T4837] dump_stack_lvl+0xf4/0x15c [ 56.408474][ T4837] dump_stack+0x1c/0x5c [ 56.409214][ T4837] should_fail+0x3bc/0x514 [ 56.410029][ T4837] __should_failslab+0xbc/0x10c [ 56.410812][ T4837] should_failslab+0x10/0x28 [ 56.411581][ T4837] slab_pre_alloc_hook+0x64/0xe8 [ 56.412456][ T4837] kmem_cache_alloc_trace+0x98/0x3ec [ 56.413392][ T4837] rand_initialize_disk+0x58/0xb8 [ 56.414277][ T4837] __alloc_disk_node+0x2a8/0x450 [ 56.415119][ T4837] __blk_mq_alloc_disk+0xe8/0x154 [ 56.415912][ T4837] loop_add+0x240/0x6e0 [ 56.416631][ T4837] loop_control_ioctl+0x130/0x4e0 [ 56.417526][ T4837] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.418365][ T4837] invoke_syscall+0x98/0x2b0 [ 56.419123][ T4837] el0_svc_common+0x138/0x258 [ 56.419936][ T4837] do_el0_svc+0x58/0x13c [ 56.420693][ T4837] el0_svc+0x78/0x1d0 [ 56.421365][ T4837] el0t_64_sync_handler+0xcc/0xe4 [ 56.422208][ T4837] el0t_64_sync+0x1a0/0x1a4 [ 56.435624][ T4839] FAULT_INJECTION: forcing a failure. [ 56.435624][ T4839] name failslab, interval 1, probability 0, space 0, times 0 [ 56.437964][ T4839] CPU: 1 PID: 4839 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.439461][ T4839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.441256][ T4839] Call trace: [ 56.441820][ T4839] dump_backtrace+0x0/0x458 [ 56.442542][ T4839] show_stack+0x2c/0x3c [ 56.443241][ T4839] __dump_stack+0x30/0x40 [ 56.443978][ T4839] dump_stack_lvl+0xf4/0x15c [ 56.444742][ T4839] dump_stack+0x1c/0x5c [ 56.445467][ T4839] should_fail+0x3bc/0x514 [ 56.446213][ T4839] __should_failslab+0xbc/0x10c [ 56.446986][ T4839] should_failslab+0x10/0x28 [ 56.447714][ T4839] slab_pre_alloc_hook+0x64/0xe8 [ 56.448509][ T4839] __kmalloc_track_caller+0x70/0x358 [ 56.449513][ T4839] kstrdup+0xe4/0x15c [ 56.450199][ T4839] kstrdup_const+0x54/0x6c [ 56.450970][ T4839] kvasprintf_const+0x120/0x2e4 [ 56.451808][ T4839] kobject_set_name_vargs+0xd8/0x1c8 [ 56.452700][ T4839] dev_set_name+0xe8/0x13c [ 56.453460][ T4839] device_add_disk+0x258/0xacc [ 56.454289][ T4839] loop_add+0x510/0x6e0 [ 56.455012][ T4839] loop_control_ioctl+0x130/0x4e0 [ 56.455876][ T4839] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.456727][ T4839] invoke_syscall+0x98/0x2b0 [ 56.457529][ T4839] el0_svc_common+0x138/0x258 [ 56.458339][ T4839] do_el0_svc+0x58/0x13c [ 56.459081][ T4839] el0_svc+0x78/0x1d0 [ 56.459771][ T4839] el0t_64_sync_handler+0xcc/0xe4 [ 56.460583][ T4839] el0t_64_sync+0x1a0/0x1a4 [ 56.472728][ T4841] FAULT_INJECTION: forcing a failure. [ 56.472728][ T4841] name failslab, interval 1, probability 0, space 0, times 0 [ 56.474911][ T4841] CPU: 1 PID: 4841 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.476459][ T4841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.478259][ T4841] Call trace: [ 56.478836][ T4841] dump_backtrace+0x0/0x458 [ 56.479644][ T4841] show_stack+0x2c/0x3c [ 56.480431][ T4841] __dump_stack+0x30/0x40 [ 56.481212][ T4841] dump_stack_lvl+0xf4/0x15c [ 56.481961][ T4841] dump_stack+0x1c/0x5c [ 56.482697][ T4841] should_fail+0x3bc/0x514 [ 56.483527][ T4841] __should_failslab+0xbc/0x10c [ 56.484344][ T4841] should_failslab+0x10/0x28 [ 56.485161][ T4841] slab_pre_alloc_hook+0x64/0xe8 [ 56.486027][ T4841] kmem_cache_alloc_trace+0x98/0x3ec [ 56.486983][ T4841] device_add+0xbc/0xf90 [ 56.487710][ T4841] device_add_disk+0x2d0/0xacc [ 56.488500][ T4841] loop_add+0x510/0x6e0 [ 56.489215][ T4841] loop_control_ioctl+0x130/0x4e0 [ 56.490030][ T4841] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.490887][ T4841] invoke_syscall+0x98/0x2b0 [ 56.491690][ T4841] el0_svc_common+0x138/0x258 [ 56.492573][ T4841] do_el0_svc+0x58/0x13c [ 56.493242][ T4841] el0_svc+0x78/0x1d0 [ 56.493948][ T4841] el0t_64_sync_handler+0xcc/0xe4 [ 56.494809][ T4841] el0t_64_sync+0x1a0/0x1a4 [ 56.505923][ T4843] FAULT_INJECTION: forcing a failure. [ 56.505923][ T4843] name failslab, interval 1, probability 0, space 0, times 0 [ 56.508074][ T4843] CPU: 1 PID: 4843 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.509615][ T4843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.511246][ T4843] Call trace: [ 56.511777][ T4843] dump_backtrace+0x0/0x458 [ 56.512501][ T4843] show_stack+0x2c/0x3c [ 56.513207][ T4843] __dump_stack+0x30/0x40 [ 56.513954][ T4843] dump_stack_lvl+0xf4/0x15c [ 56.514754][ T4843] dump_stack+0x1c/0x5c [ 56.515479][ T4843] should_fail+0x3bc/0x514 [ 56.516296][ T4843] __should_failslab+0xbc/0x10c [ 56.517195][ T4843] should_failslab+0x10/0x28 [ 56.518019][ T4843] slab_pre_alloc_hook+0x64/0xe8 [ 56.518832][ T4843] kmem_cache_alloc_node_trace+0x9c/0x424 [ 56.519774][ T4843] iolatency_pd_alloc+0xac/0x164 [ 56.520669][ T4843] blkcg_activate_policy+0x204/0xa8c [ 56.521581][ T4843] blk_iolatency_init+0x22c/0x430 [ 56.522452][ T4843] blkcg_init_queue+0x3f0/0x484 [ 56.523269][ T4843] blk_alloc_queue+0x3cc/0x4a0 [ 56.524104][ T4843] __blk_mq_alloc_disk+0x5c/0x154 [ 56.524963][ T4843] loop_add+0x240/0x6e0 [ 56.525683][ T4843] loop_control_ioctl+0x130/0x4e0 [ 56.526555][ T4843] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.527399][ T4843] invoke_syscall+0x98/0x2b0 [ 56.528153][ T4843] el0_svc_common+0x138/0x258 [ 56.528914][ T4843] do_el0_svc+0x58/0x13c [ 56.529619][ T4843] el0_svc+0x78/0x1d0 [ 56.530311][ T4843] el0t_64_sync_handler+0xcc/0xe4 [ 56.531221][ T4843] el0t_64_sync+0x1a0/0x1a4 [ 56.546237][ T4845] FAULT_INJECTION: forcing a failure. [ 56.546237][ T4845] name failslab, interval 1, probability 0, space 0, times 0 [ 56.548450][ T4845] CPU: 0 PID: 4845 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.550004][ T4845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.551676][ T4845] Call trace: [ 56.552299][ T4845] dump_backtrace+0x0/0x458 [ 56.552988][ T4845] show_stack+0x2c/0x3c [ 56.553681][ T4845] __dump_stack+0x30/0x40 [ 56.554380][ T4845] dump_stack_lvl+0xf4/0x15c [ 56.555121][ T4845] dump_stack+0x1c/0x5c [ 56.555813][ T4845] should_fail+0x3bc/0x514 [ 56.556544][ T4845] __should_failslab+0xbc/0x10c [ 56.557312][ T4845] should_failslab+0x10/0x28 [ 56.558050][ T4845] slab_pre_alloc_hook+0x64/0xe8 [ 56.558874][ T4845] __kmalloc_track_caller+0x70/0x358 [ 56.559811][ T4845] kstrdup+0xe4/0x15c [ 56.560424][ T4845] kstrdup_const+0x54/0x6c [ 56.561128][ T4845] kvasprintf_const+0x120/0x2e4 [ 56.561857][ T4845] kobject_set_name_vargs+0xd8/0x1c8 [ 56.562762][ T4845] dev_set_name+0xe8/0x13c [ 56.563536][ T4845] device_add_disk+0x258/0xacc [ 56.564365][ T4845] loop_add+0x510/0x6e0 [ 56.565086][ T4845] loop_control_ioctl+0x130/0x4e0 [ 56.565968][ T4845] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.566839][ T4845] invoke_syscall+0x98/0x2b0 [ 56.567643][ T4845] el0_svc_common+0x138/0x258 [ 56.568412][ T4845] do_el0_svc+0x58/0x13c [ 56.569160][ T4845] el0_svc+0x78/0x1d0 [ 56.569866][ T4845] el0t_64_sync_handler+0xcc/0xe4 [ 56.570756][ T4845] el0t_64_sync+0x1a0/0x1a4 [ 56.582541][ T4847] FAULT_INJECTION: forcing a failure. [ 56.582541][ T4847] name failslab, interval 1, probability 0, space 0, times 0 [ 56.584774][ T4847] CPU: 1 PID: 4847 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.586314][ T4847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.587978][ T4847] Call trace: [ 56.588555][ T4847] dump_backtrace+0x0/0x458 [ 56.589273][ T4847] show_stack+0x2c/0x3c [ 56.589978][ T4847] __dump_stack+0x30/0x40 [ 56.590772][ T4847] dump_stack_lvl+0xf4/0x15c [ 56.591520][ T4847] dump_stack+0x1c/0x5c [ 56.592274][ T4847] should_fail+0x3bc/0x514 [ 56.593043][ T4847] __should_failslab+0xbc/0x10c [ 56.593837][ T4847] should_failslab+0x10/0x28 [ 56.594611][ T4847] slab_pre_alloc_hook+0x64/0xe8 [ 56.595443][ T4847] kmem_cache_alloc_trace+0x98/0x3ec [ 56.596318][ T4847] device_add+0xbc/0xf90 [ 56.596973][ T4847] device_add_disk+0x2d0/0xacc [ 56.597726][ T4847] loop_add+0x510/0x6e0 [ 56.598384][ T4847] loop_control_ioctl+0x130/0x4e0 [ 56.599171][ T4847] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.599936][ T4847] invoke_syscall+0x98/0x2b0 [ 56.600651][ T4847] el0_svc_common+0x138/0x258 [ 56.601400][ T4847] do_el0_svc+0x58/0x13c [ 56.602113][ T4847] el0_svc+0x78/0x1d0 [ 56.602759][ T4847] el0t_64_sync_handler+0xcc/0xe4 [ 56.603609][ T4847] el0t_64_sync+0x1a0/0x1a4 [ 56.620991][ T4849] FAULT_INJECTION: forcing a failure. [ 56.620991][ T4849] name failslab, interval 1, probability 0, space 0, times 0 [ 56.623874][ T4849] CPU: 0 PID: 4849 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.625521][ T4849] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.627182][ T4849] Call trace: [ 56.627726][ T4849] dump_backtrace+0x0/0x458 [ 56.628551][ T4849] show_stack+0x2c/0x3c [ 56.629233][ T4849] __dump_stack+0x30/0x40 [ 56.630037][ T4849] dump_stack_lvl+0xf4/0x15c [ 56.630768][ T4849] dump_stack+0x1c/0x5c [ 56.631428][ T4849] should_fail+0x3bc/0x514 [ 56.632130][ T4849] __should_failslab+0xbc/0x10c [ 56.633017][ T4849] should_failslab+0x10/0x28 [ 56.633767][ T4849] slab_pre_alloc_hook+0x64/0xe8 [ 56.634609][ T4849] __kmalloc_node+0xb8/0x508 [ 56.635449][ T4849] memcg_alloc_page_obj_cgroups+0x80/0x170 [ 56.636447][ T4849] new_slab+0x114/0x544 [ 56.637162][ T4849] ___slab_alloc+0x6b4/0xd8c [ 56.637915][ T4849] __slab_alloc+0x68/0xc0 [ 56.638656][ T4849] kmem_cache_alloc+0x2a4/0x3d4 [ 56.639478][ T4849] bdev_alloc_inode+0x24/0x60 [ 56.640312][ T4849] new_inode_pseudo+0x68/0x1fc [ 56.641117][ T4849] new_inode+0x38/0x174 [ 56.641847][ T4849] bdev_alloc+0x30/0x1f8 [ 56.642543][ T4849] __alloc_disk_node+0xbc/0x450 [ 56.643366][ T4849] __blk_mq_alloc_disk+0xe8/0x154 [ 56.644245][ T4849] loop_add+0x240/0x6e0 [ 56.644937][ T4849] loop_control_ioctl+0x130/0x4e0 [ 56.645835][ T4849] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.646675][ T4849] invoke_syscall+0x98/0x2b0 [ 56.647426][ T4849] el0_svc_common+0x138/0x258 [ 56.648208][ T4849] do_el0_svc+0x58/0x13c [ 56.648914][ T4849] el0_svc+0x78/0x1d0 [ 56.649561][ T4849] el0t_64_sync_handler+0xcc/0xe4 [ 56.650431][ T4849] el0t_64_sync+0x1a0/0x1a4 [ 56.663384][ T4851] FAULT_INJECTION: forcing a failure. [ 56.663384][ T4851] name failslab, interval 1, probability 0, space 0, times 0 [ 56.665744][ T4851] CPU: 1 PID: 4851 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.667253][ T4851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.668923][ T4851] Call trace: [ 56.669454][ T4851] dump_backtrace+0x0/0x458 [ 56.670215][ T4851] show_stack+0x2c/0x3c [ 56.670913][ T4851] __dump_stack+0x30/0x40 [ 56.671728][ T4851] dump_stack_lvl+0xf4/0x15c [ 56.672532][ T4851] dump_stack+0x1c/0x5c [ 56.673254][ T4851] should_fail+0x3bc/0x514 [ 56.674037][ T4851] __should_failslab+0xbc/0x10c [ 56.674899][ T4851] should_failslab+0x10/0x28 [ 56.675707][ T4851] slab_pre_alloc_hook+0x64/0xe8 [ 56.676571][ T4851] kmem_cache_alloc_trace+0x98/0x3ec [ 56.677472][ T4851] device_add+0xbc/0xf90 [ 56.678158][ T4851] device_add_disk+0x2d0/0xacc [ 56.678955][ T4851] loop_add+0x510/0x6e0 [ 56.679664][ T4851] loop_control_ioctl+0x130/0x4e0 [ 56.680509][ T4851] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.681326][ T4851] invoke_syscall+0x98/0x2b0 [ 56.682072][ T4851] el0_svc_common+0x138/0x258 [ 56.682923][ T4851] do_el0_svc+0x58/0x13c [ 56.683680][ T4851] el0_svc+0x78/0x1d0 [ 56.684341][ T4851] el0t_64_sync_handler+0xcc/0xe4 [ 56.685180][ T4851] el0t_64_sync+0x1a0/0x1a4 [ 56.698996][ T4853] FAULT_INJECTION: forcing a failure. [ 56.698996][ T4853] name failslab, interval 1, probability 0, space 0, times 0 [ 56.701279][ T4853] CPU: 1 PID: 4853 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.702868][ T4853] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.704505][ T4853] Call trace: [ 56.705067][ T4853] dump_backtrace+0x0/0x458 [ 56.705813][ T4853] show_stack+0x2c/0x3c [ 56.706518][ T4853] __dump_stack+0x30/0x40 [ 56.707282][ T4853] dump_stack_lvl+0xf4/0x15c [ 56.708060][ T4853] dump_stack+0x1c/0x5c [ 56.708816][ T4853] should_fail+0x3bc/0x514 [ 56.709657][ T4853] __should_failslab+0xbc/0x10c [ 56.710469][ T4853] should_failslab+0x10/0x28 [ 56.711318][ T4853] slab_pre_alloc_hook+0x64/0xe8 [ 56.712117][ T4853] kmem_cache_alloc_node_trace+0x9c/0x424 [ 56.713122][ T4853] iolatency_pd_alloc+0xac/0x164 [ 56.713954][ T4853] blkcg_activate_policy+0x204/0xa8c [ 56.714871][ T4853] blk_iolatency_init+0x22c/0x430 [ 56.715759][ T4853] blkcg_init_queue+0x3f0/0x484 [ 56.716527][ T4853] blk_alloc_queue+0x3cc/0x4a0 [ 56.717344][ T4853] __blk_mq_alloc_disk+0x5c/0x154 [ 56.718185][ T4853] loop_add+0x240/0x6e0 [ 56.718893][ T4853] loop_control_ioctl+0x130/0x4e0 [ 56.719716][ T4853] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.720530][ T4853] invoke_syscall+0x98/0x2b0 [ 56.721312][ T4853] el0_svc_common+0x138/0x258 [ 56.722076][ T4853] do_el0_svc+0x58/0x13c [ 56.722731][ T4853] el0_svc+0x78/0x1d0 [ 56.723360][ T4853] el0t_64_sync_handler+0xcc/0xe4 [ 56.724281][ T4853] el0t_64_sync+0x1a0/0x1a4 [ 56.740653][ T4855] FAULT_INJECTION: forcing a failure. [ 56.740653][ T4855] name failslab, interval 1, probability 0, space 0, times 0 [ 56.743079][ T4074] Bluetooth: hci0: command 0x040f tx timeout [ 56.744512][ T4855] CPU: 1 PID: 4855 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.746089][ T4855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.747845][ T4855] Call trace: [ 56.748443][ T4855] dump_backtrace+0x0/0x458 [ 56.749245][ T4855] show_stack+0x2c/0x3c [ 56.749917][ T4855] __dump_stack+0x30/0x40 [ 56.750593][ T4855] dump_stack_lvl+0xf4/0x15c [ 56.751369][ T4855] dump_stack+0x1c/0x5c [ 56.752093][ T4855] should_fail+0x3bc/0x514 [ 56.752792][ T4855] __should_failslab+0xbc/0x10c [ 56.753528][ T4855] should_failslab+0x10/0x28 [ 56.754249][ T4855] slab_pre_alloc_hook+0x64/0xe8 [ 56.755020][ T4855] kmem_cache_alloc_trace+0x98/0x3ec [ 56.755856][ T4855] device_add+0xbc/0xf90 [ 56.756539][ T4855] device_add_disk+0x2d0/0xacc [ 56.757375][ T4855] loop_add+0x510/0x6e0 [ 56.758078][ T4855] loop_control_ioctl+0x130/0x4e0 [ 56.758934][ T4855] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.759786][ T4855] invoke_syscall+0x98/0x2b0 [ 56.760642][ T4855] el0_svc_common+0x138/0x258 [ 56.761461][ T4855] do_el0_svc+0x58/0x13c [ 56.762115][ T4855] el0_svc+0x78/0x1d0 [ 56.762734][ T4855] el0t_64_sync_handler+0xcc/0xe4 [ 56.763575][ T4855] el0t_64_sync+0x1a0/0x1a4 [ 56.773992][ T4857] FAULT_INJECTION: forcing a failure. [ 56.773992][ T4857] name failslab, interval 1, probability 0, space 0, times 0 [ 56.776242][ T4857] CPU: 0 PID: 4857 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.777773][ T4857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.779479][ T4857] Call trace: [ 56.780006][ T4857] dump_backtrace+0x0/0x458 [ 56.780806][ T4857] show_stack+0x2c/0x3c [ 56.781642][ T4857] __dump_stack+0x30/0x40 [ 56.782387][ T4857] dump_stack_lvl+0xf4/0x15c [ 56.783196][ T4857] dump_stack+0x1c/0x5c [ 56.783925][ T4857] should_fail+0x3bc/0x514 [ 56.784722][ T4857] __should_failslab+0xbc/0x10c [ 56.785537][ T4857] should_failslab+0x10/0x28 [ 56.786310][ T4857] slab_pre_alloc_hook+0x64/0xe8 [ 56.787093][ T4857] kmem_cache_alloc+0x94/0x3d4 [ 56.787965][ T4857] __debug_object_init+0x688/0xa0c [ 56.788801][ T4857] debug_object_init+0x20/0x2c [ 56.789575][ T4857] __percpu_counter_init+0x10c/0x26c [ 56.790478][ T4857] blkg_rwstat_init+0x164/0x2b8 [ 56.791267][ T4857] throtl_pd_alloc+0xf0/0x4ec [ 56.792033][ T4857] blkcg_activate_policy+0x204/0xa8c [ 56.792885][ T4857] blk_throtl_init+0x308/0x3ec [ 56.793681][ T4857] blkcg_init_queue+0x3cc/0x484 [ 56.794528][ T4857] blk_alloc_queue+0x3cc/0x4a0 [ 56.795304][ T4857] __blk_mq_alloc_disk+0x5c/0x154 [ 56.796150][ T4857] loop_add+0x240/0x6e0 [ 56.796862][ T4857] loop_control_ioctl+0x130/0x4e0 [ 56.797708][ T4857] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.798531][ T4857] invoke_syscall+0x98/0x2b0 [ 56.799299][ T4857] el0_svc_common+0x138/0x258 [ 56.800054][ T4857] do_el0_svc+0x58/0x13c [ 56.800745][ T4857] el0_svc+0x78/0x1d0 [ 56.801407][ T4857] el0t_64_sync_handler+0xcc/0xe4 [ 56.802249][ T4857] el0t_64_sync+0x1a0/0x1a4 [ 56.816192][ T4859] FAULT_INJECTION: forcing a failure. [ 56.816192][ T4859] name failslab, interval 1, probability 0, space 0, times 0 [ 56.818322][ T4859] CPU: 0 PID: 4859 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.819815][ T4859] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.821553][ T4859] Call trace: [ 56.822118][ T4859] dump_backtrace+0x0/0x458 [ 56.822945][ T4859] show_stack+0x2c/0x3c [ 56.823670][ T4859] __dump_stack+0x30/0x40 [ 56.824423][ T4859] dump_stack_lvl+0xf4/0x15c [ 56.825267][ T4859] dump_stack+0x1c/0x5c [ 56.825997][ T4859] should_fail+0x3bc/0x514 [ 56.826754][ T4859] __should_failslab+0xbc/0x10c [ 56.827575][ T4859] should_failslab+0x10/0x28 [ 56.828364][ T4859] slab_pre_alloc_hook+0x64/0xe8 [ 56.829147][ T4859] __kmalloc_track_caller+0x70/0x358 [ 56.830047][ T4859] kstrdup+0xe4/0x15c [ 56.830737][ T4859] kstrdup_const+0x54/0x6c [ 56.831577][ T4859] kvasprintf_const+0x120/0x2e4 [ 56.832408][ T4859] kobject_set_name_vargs+0xd8/0x1c8 [ 56.833266][ T4859] dev_set_name+0xe8/0x13c [ 56.834074][ T4859] device_add_disk+0x258/0xacc [ 56.834926][ T4859] loop_add+0x510/0x6e0 [ 56.835664][ T4859] loop_control_ioctl+0x130/0x4e0 [ 56.836566][ T4859] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.837374][ T4859] invoke_syscall+0x98/0x2b0 [ 56.838092][ T4859] el0_svc_common+0x138/0x258 [ 56.838868][ T4859] do_el0_svc+0x58/0x13c [ 56.839563][ T4859] el0_svc+0x78/0x1d0 [ 56.840182][ T4859] el0t_64_sync_handler+0xcc/0xe4 [ 56.840922][ T4859] el0t_64_sync+0x1a0/0x1a4 [ 56.852322][ T4861] FAULT_INJECTION: forcing a failure. [ 56.852322][ T4861] name failslab, interval 1, probability 0, space 0, times 0 [ 56.854580][ T4861] CPU: 0 PID: 4861 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.856079][ T4861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.857849][ T4861] Call trace: [ 56.858431][ T4861] dump_backtrace+0x0/0x458 [ 56.859224][ T4861] show_stack+0x2c/0x3c [ 56.859963][ T4861] __dump_stack+0x30/0x40 [ 56.860678][ T4861] dump_stack_lvl+0xf4/0x15c [ 56.861501][ T4861] dump_stack+0x1c/0x5c [ 56.862187][ T4861] should_fail+0x3bc/0x514 [ 56.862940][ T4861] __should_failslab+0xbc/0x10c [ 56.863726][ T4861] should_failslab+0x10/0x28 [ 56.864476][ T4861] slab_pre_alloc_hook+0x64/0xe8 [ 56.865309][ T4861] kmem_cache_alloc_trace+0x98/0x3ec [ 56.866220][ T4861] rand_initialize_disk+0x58/0xb8 [ 56.867075][ T4861] __alloc_disk_node+0x2a8/0x450 [ 56.867920][ T4861] __blk_mq_alloc_disk+0xe8/0x154 [ 56.868735][ T4861] loop_add+0x240/0x6e0 [ 56.869410][ T4861] loop_control_ioctl+0x130/0x4e0 [ 56.870196][ T4861] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.870993][ T4861] invoke_syscall+0x98/0x2b0 [ 56.871759][ T4861] el0_svc_common+0x138/0x258 [ 56.872489][ T4861] do_el0_svc+0x58/0x13c [ 56.873122][ T4861] el0_svc+0x78/0x1d0 [ 56.873732][ T4861] el0t_64_sync_handler+0xcc/0xe4 [ 56.874562][ T4861] el0t_64_sync+0x1a0/0x1a4 [ 56.888880][ T4863] FAULT_INJECTION: forcing a failure. [ 56.888880][ T4863] name failslab, interval 1, probability 0, space 0, times 0 [ 56.891014][ T4863] CPU: 1 PID: 4863 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.892512][ T4863] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.894283][ T4863] Call trace: [ 56.894854][ T4863] dump_backtrace+0x0/0x458 [ 56.895648][ T4863] show_stack+0x2c/0x3c [ 56.896385][ T4863] __dump_stack+0x30/0x40 [ 56.897226][ T4863] dump_stack_lvl+0xf4/0x15c [ 56.897975][ T4863] dump_stack+0x1c/0x5c [ 56.898618][ T4863] should_fail+0x3bc/0x514 [ 56.899330][ T4863] __should_failslab+0xbc/0x10c [ 56.900181][ T4863] should_failslab+0x10/0x28 [ 56.900955][ T4863] slab_pre_alloc_hook+0x64/0xe8 [ 56.901803][ T4863] __kmalloc_track_caller+0x70/0x358 [ 56.902646][ T4863] kstrdup+0xe4/0x15c [ 56.903331][ T4863] kstrdup_const+0x54/0x6c [ 56.904063][ T4863] kvasprintf_const+0x120/0x2e4 [ 56.904868][ T4863] kobject_set_name_vargs+0xd8/0x1c8 [ 56.905781][ T4863] dev_set_name+0xe8/0x13c [ 56.906603][ T4863] device_add_disk+0x258/0xacc [ 56.907407][ T4863] loop_add+0x510/0x6e0 [ 56.908109][ T4863] loop_control_ioctl+0x130/0x4e0 [ 56.908953][ T4863] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.909774][ T4863] invoke_syscall+0x98/0x2b0 [ 56.910533][ T4863] el0_svc_common+0x138/0x258 [ 56.911282][ T4863] do_el0_svc+0x58/0x13c [ 56.912023][ T4863] el0_svc+0x78/0x1d0 [ 56.912692][ T4863] el0t_64_sync_handler+0xcc/0xe4 [ 56.913538][ T4863] el0t_64_sync+0x1a0/0x1a4 [ 56.925405][ T4865] FAULT_INJECTION: forcing a failure. [ 56.925405][ T4865] name failslab, interval 1, probability 0, space 0, times 0 [ 56.927547][ T4865] CPU: 0 PID: 4865 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.929107][ T4865] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.930857][ T4865] Call trace: [ 56.931373][ T4865] dump_backtrace+0x0/0x458 [ 56.932247][ T4865] show_stack+0x2c/0x3c [ 56.932964][ T4865] __dump_stack+0x30/0x40 [ 56.933741][ T4865] dump_stack_lvl+0xf4/0x15c [ 56.934545][ T4865] dump_stack+0x1c/0x5c [ 56.935210][ T4865] should_fail+0x3bc/0x514 [ 56.935937][ T4865] __should_failslab+0xbc/0x10c [ 56.936747][ T4865] should_failslab+0x10/0x28 [ 56.937507][ T4865] slab_pre_alloc_hook+0x64/0xe8 [ 56.938375][ T4865] kmem_cache_alloc_node_trace+0x9c/0x424 [ 56.939339][ T4865] iolatency_pd_alloc+0xac/0x164 [ 56.940214][ T4865] blkcg_activate_policy+0x204/0xa8c [ 56.941094][ T4865] blk_iolatency_init+0x22c/0x430 [ 56.941980][ T4865] blkcg_init_queue+0x3f0/0x484 [ 56.942734][ T4865] blk_alloc_queue+0x3cc/0x4a0 [ 56.943611][ T4865] __blk_mq_alloc_disk+0x5c/0x154 [ 56.944540][ T4865] loop_add+0x240/0x6e0 [ 56.945297][ T4865] loop_control_ioctl+0x130/0x4e0 [ 56.946169][ T4865] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.946955][ T4865] invoke_syscall+0x98/0x2b0 [ 56.947705][ T4865] el0_svc_common+0x138/0x258 [ 56.948450][ T4865] do_el0_svc+0x58/0x13c [ 56.949184][ T4865] el0_svc+0x78/0x1d0 [ 56.949853][ T4865] el0t_64_sync_handler+0xcc/0xe4 [ 56.950720][ T4865] el0t_64_sync+0x1a0/0x1a4 [ 56.966392][ T4867] FAULT_INJECTION: forcing a failure. [ 56.966392][ T4867] name failslab, interval 1, probability 0, space 0, times 0 [ 56.968492][ T4867] CPU: 0 PID: 4867 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.970018][ T4867] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.971662][ T4867] Call trace: [ 56.972204][ T4867] dump_backtrace+0x0/0x458 [ 56.973004][ T4867] show_stack+0x2c/0x3c [ 56.973661][ T4867] __dump_stack+0x30/0x40 [ 56.974381][ T4867] dump_stack_lvl+0xf4/0x15c [ 56.975111][ T4867] dump_stack+0x1c/0x5c [ 56.975761][ T4867] should_fail+0x3bc/0x514 [ 56.976618][ T4867] __should_failslab+0xbc/0x10c [ 56.977474][ T4867] should_failslab+0x10/0x28 [ 56.978237][ T4867] slab_pre_alloc_hook+0x64/0xe8 [ 56.979042][ T4867] __kmalloc_track_caller+0x70/0x358 [ 56.979898][ T4867] kstrdup+0xe4/0x15c [ 56.980587][ T4867] kstrdup_const+0x54/0x6c [ 56.981358][ T4867] kvasprintf_const+0x120/0x2e4 [ 56.982175][ T4867] kobject_set_name_vargs+0xd8/0x1c8 [ 56.983088][ T4867] dev_set_name+0xe8/0x13c [ 56.983831][ T4867] device_add_disk+0x258/0xacc [ 56.984570][ T4867] loop_add+0x510/0x6e0 [ 56.985287][ T4867] loop_control_ioctl+0x130/0x4e0 [ 56.986210][ T4867] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.987052][ T4867] invoke_syscall+0x98/0x2b0 [ 56.987861][ T4867] el0_svc_common+0x138/0x258 [ 56.988706][ T4867] do_el0_svc+0x58/0x13c [ 56.989434][ T4867] el0_svc+0x78/0x1d0 [ 56.990104][ T4867] el0t_64_sync_handler+0xcc/0xe4 [ 56.990963][ T4867] el0t_64_sync+0x1a0/0x1a4 [ 57.001289][ T4869] FAULT_INJECTION: forcing a failure. [ 57.001289][ T4869] name failslab, interval 1, probability 0, space 0, times 0 [ 57.004237][ T4869] CPU: 0 PID: 4869 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.005830][ T4869] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.007586][ T4869] Call trace: [ 57.008170][ T4869] dump_backtrace+0x0/0x458 [ 57.008942][ T4869] show_stack+0x2c/0x3c [ 57.009640][ T4869] __dump_stack+0x30/0x40 [ 57.010355][ T4869] dump_stack_lvl+0xf4/0x15c [ 57.011109][ T4869] dump_stack+0x1c/0x5c [ 57.011778][ T4869] should_fail+0x3bc/0x514 [ 57.012512][ T4869] __should_failslab+0xbc/0x10c [ 57.013311][ T4869] should_failslab+0x10/0x28 [ 57.014096][ T4869] slab_pre_alloc_hook+0x64/0xe8 [ 57.015004][ T4869] kmem_cache_alloc_trace+0x98/0x3ec [ 57.015862][ T4869] blk_iolatency_init+0x64/0x430 [ 57.016727][ T4869] blkcg_init_queue+0x3f0/0x484 [ 57.017681][ T4869] blk_alloc_queue+0x3cc/0x4a0 [ 57.018441][ T4869] __blk_mq_alloc_disk+0x5c/0x154 [ 57.019233][ T4869] loop_add+0x240/0x6e0 [ 57.019961][ T4869] loop_control_ioctl+0x130/0x4e0 [ 57.020785][ T4869] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.021625][ T4869] invoke_syscall+0x98/0x2b0 [ 57.022430][ T4869] el0_svc_common+0x138/0x258 [ 57.023160][ T4869] do_el0_svc+0x58/0x13c [ 57.023886][ T4869] el0_svc+0x78/0x1d0 [ 57.024558][ T4869] el0t_64_sync_handler+0xcc/0xe4 [ 57.025431][ T4869] el0t_64_sync+0x1a0/0x1a4 [ 57.036996][ T4871] FAULT_INJECTION: forcing a failure. [ 57.036996][ T4871] name failslab, interval 1, probability 0, space 0, times 0 [ 57.039301][ T4871] CPU: 1 PID: 4871 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.040867][ T4871] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.042678][ T4871] Call trace: [ 57.043238][ T4871] dump_backtrace+0x0/0x458 [ 57.043963][ T4871] show_stack+0x2c/0x3c [ 57.044621][ T4871] __dump_stack+0x30/0x40 [ 57.045365][ T4871] dump_stack_lvl+0xf4/0x15c [ 57.046145][ T4871] dump_stack+0x1c/0x5c [ 57.046847][ T4871] should_fail+0x3bc/0x514 [ 57.047655][ T4871] __should_failslab+0xbc/0x10c [ 57.048547][ T4871] should_failslab+0x10/0x28 [ 57.049353][ T4871] slab_pre_alloc_hook+0x64/0xe8 [ 57.050209][ T4871] kmem_cache_alloc_trace+0x98/0x3ec [ 57.051144][ T4871] device_add+0xbc/0xf90 [ 57.051860][ T4871] device_add_disk+0x2d0/0xacc [ 57.052632][ T4871] loop_add+0x510/0x6e0 [ 57.053354][ T4871] loop_control_ioctl+0x130/0x4e0 [ 57.054206][ T4871] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.055044][ T4871] invoke_syscall+0x98/0x2b0 [ 57.055826][ T4871] el0_svc_common+0x138/0x258 [ 57.056682][ T4871] do_el0_svc+0x58/0x13c [ 57.057384][ T4871] el0_svc+0x78/0x1d0 [ 57.058070][ T4871] el0t_64_sync_handler+0xcc/0xe4 [ 57.058957][ T4871] el0t_64_sync+0x1a0/0x1a4 [ 57.070277][ T4873] FAULT_INJECTION: forcing a failure. [ 57.070277][ T4873] name failslab, interval 1, probability 0, space 0, times 0 [ 57.072922][ T4873] CPU: 0 PID: 4873 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.074420][ T4873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.076173][ T4873] Call trace: [ 57.076730][ T4873] dump_backtrace+0x0/0x458 [ 57.077551][ T4873] show_stack+0x2c/0x3c [ 57.078259][ T4873] __dump_stack+0x30/0x40 [ 57.079009][ T4873] dump_stack_lvl+0xf4/0x15c [ 57.079779][ T4873] dump_stack+0x1c/0x5c [ 57.080496][ T4873] should_fail+0x3bc/0x514 [ 57.081250][ T4873] __should_failslab+0xbc/0x10c [ 57.082098][ T4873] should_failslab+0x10/0x28 [ 57.082868][ T4873] slab_pre_alloc_hook+0x64/0xe8 [ 57.083676][ T4873] kmem_cache_alloc_trace+0x98/0x3ec [ 57.084590][ T4873] device_add+0xbc/0xf90 [ 57.085311][ T4873] device_add_disk+0x2d0/0xacc [ 57.086117][ T4873] loop_add+0x510/0x6e0 [ 57.086853][ T4873] loop_control_ioctl+0x130/0x4e0 [ 57.087686][ T4873] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.088539][ T4873] invoke_syscall+0x98/0x2b0 [ 57.089326][ T4873] el0_svc_common+0x138/0x258 [ 57.090108][ T4873] do_el0_svc+0x58/0x13c [ 57.090790][ T4873] el0_svc+0x78/0x1d0 [ 57.091483][ T4873] el0t_64_sync_handler+0xcc/0xe4 [ 57.092331][ T4873] el0t_64_sync+0x1a0/0x1a4 [ 57.103463][ T4875] FAULT_INJECTION: forcing a failure. [ 57.103463][ T4875] name failslab, interval 1, probability 0, space 0, times 0 [ 57.105676][ T4875] CPU: 0 PID: 4875 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.107088][ T4875] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.108853][ T4875] Call trace: [ 57.109403][ T4875] dump_backtrace+0x0/0x458 [ 57.110208][ T4875] show_stack+0x2c/0x3c [ 57.110957][ T4875] __dump_stack+0x30/0x40 [ 57.111669][ T4875] dump_stack_lvl+0xf4/0x15c [ 57.112469][ T4875] dump_stack+0x1c/0x5c [ 57.113147][ T4875] should_fail+0x3bc/0x514 [ 57.113881][ T4875] __should_failslab+0xbc/0x10c [ 57.114724][ T4875] should_failslab+0x10/0x28 [ 57.115475][ T4875] slab_pre_alloc_hook+0x64/0xe8 [ 57.116352][ T4875] kmem_cache_alloc_trace+0x98/0x3ec [ 57.117267][ T4875] device_add+0xbc/0xf90 [ 57.118008][ T4875] device_add_disk+0x2d0/0xacc [ 57.118810][ T4875] loop_add+0x510/0x6e0 [ 57.119538][ T4875] loop_control_ioctl+0x130/0x4e0 [ 57.120413][ T4875] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.121262][ T4875] invoke_syscall+0x98/0x2b0 [ 57.122034][ T4875] el0_svc_common+0x138/0x258 [ 57.122809][ T4875] do_el0_svc+0x58/0x13c [ 57.123552][ T4875] el0_svc+0x78/0x1d0 [ 57.124235][ T4875] el0t_64_sync_handler+0xcc/0xe4 [ 57.125113][ T4875] el0t_64_sync+0x1a0/0x1a4 [ 57.135661][ T4877] FAULT_INJECTION: forcing a failure. [ 57.135661][ T4877] name failslab, interval 1, probability 0, space 0, times 0 [ 57.138003][ T4877] CPU: 1 PID: 4877 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.139440][ T4877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.141168][ T4877] Call trace: [ 57.141687][ T4877] dump_backtrace+0x0/0x458 [ 57.142445][ T4877] show_stack+0x2c/0x3c [ 57.143102][ T4877] __dump_stack+0x30/0x40 [ 57.143842][ T4877] dump_stack_lvl+0xf4/0x15c [ 57.144609][ T4877] dump_stack+0x1c/0x5c [ 57.145332][ T4877] should_fail+0x3bc/0x514 [ 57.146103][ T4877] __should_failslab+0xbc/0x10c [ 57.146936][ T4877] should_failslab+0x10/0x28 [ 57.147786][ T4877] slab_pre_alloc_hook+0x64/0xe8 [ 57.148808][ T4877] __kmalloc_track_caller+0x70/0x358 [ 57.149754][ T4877] kstrdup+0xe4/0x15c [ 57.150417][ T4877] kstrdup_const+0x54/0x6c [ 57.151254][ T4877] kvasprintf_const+0x120/0x2e4 [ 57.152077][ T4877] kobject_set_name_vargs+0xd8/0x1c8 [ 57.153060][ T4877] dev_set_name+0xe8/0x13c [ 57.153780][ T4877] device_add_disk+0x258/0xacc [ 57.154555][ T4877] loop_add+0x510/0x6e0 [ 57.155219][ T4877] loop_control_ioctl+0x130/0x4e0 [ 57.156111][ T4877] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.156896][ T4877] invoke_syscall+0x98/0x2b0 [ 57.157643][ T4877] el0_svc_common+0x138/0x258 [ 57.158429][ T4877] do_el0_svc+0x58/0x13c [ 57.159206][ T4877] el0_svc+0x78/0x1d0 [ 57.159925][ T4877] el0t_64_sync_handler+0xcc/0xe4 [ 57.160822][ T4877] el0t_64_sync+0x1a0/0x1a4 [ 57.171057][ T4879] FAULT_INJECTION: forcing a failure. [ 57.171057][ T4879] name failslab, interval 1, probability 0, space 0, times 0 [ 57.173257][ T4879] CPU: 1 PID: 4879 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.174902][ T4879] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.176551][ T4879] Call trace: [ 57.177097][ T4879] dump_backtrace+0x0/0x458 [ 57.177869][ T4879] show_stack+0x2c/0x3c [ 57.178628][ T4879] __dump_stack+0x30/0x40 [ 57.179461][ T4879] dump_stack_lvl+0xf4/0x15c [ 57.180238][ T4879] dump_stack+0x1c/0x5c [ 57.180917][ T4879] should_fail+0x3bc/0x514 [ 57.181703][ T4879] __should_failslab+0xbc/0x10c [ 57.182488][ T4879] should_failslab+0x10/0x28 [ 57.183211][ T4879] slab_pre_alloc_hook+0x64/0xe8 [ 57.184061][ T4879] kmem_cache_alloc_node_trace+0x9c/0x424 [ 57.185017][ T4879] iolatency_pd_alloc+0xac/0x164 [ 57.185867][ T4879] blkcg_activate_policy+0x204/0xa8c [ 57.186825][ T4879] blk_iolatency_init+0x22c/0x430 [ 57.187688][ T4879] blkcg_init_queue+0x3f0/0x484 [ 57.188480][ T4879] blk_alloc_queue+0x3cc/0x4a0 [ 57.189294][ T4879] __blk_mq_alloc_disk+0x5c/0x154 [ 57.190153][ T4879] loop_add+0x240/0x6e0 [ 57.190895][ T4879] loop_control_ioctl+0x130/0x4e0 [ 57.191823][ T4879] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.192635][ T4879] invoke_syscall+0x98/0x2b0 [ 57.193433][ T4879] el0_svc_common+0x138/0x258 [ 57.194239][ T4879] do_el0_svc+0x58/0x13c [ 57.194995][ T4879] el0_svc+0x78/0x1d0 [ 57.195646][ T4879] el0t_64_sync_handler+0xcc/0xe4 [ 57.196450][ T4879] el0t_64_sync+0x1a0/0x1a4 [ 57.210756][ T4881] FAULT_INJECTION: forcing a failure. [ 57.210756][ T4881] name failslab, interval 1, probability 0, space 0, times 0 [ 57.213029][ T4881] CPU: 0 PID: 4881 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.214566][ T4881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.216239][ T4881] Call trace: [ 57.216810][ T4881] dump_backtrace+0x0/0x458 [ 57.217594][ T4881] show_stack+0x2c/0x3c [ 57.218272][ T4881] __dump_stack+0x30/0x40 [ 57.219021][ T4881] dump_stack_lvl+0xf4/0x15c [ 57.219763][ T4881] dump_stack+0x1c/0x5c [ 57.220497][ T4881] should_fail+0x3bc/0x514 [ 57.221293][ T4881] __should_failslab+0xbc/0x10c [ 57.222013][ T4881] should_failslab+0x10/0x28 [ 57.222730][ T4881] slab_pre_alloc_hook+0x64/0xe8 [ 57.223572][ T4881] kmem_cache_alloc_node_trace+0x9c/0x424 [ 57.224598][ T4881] iolatency_pd_alloc+0xac/0x164 [ 57.225581][ T4881] blkcg_activate_policy+0x204/0xa8c [ 57.226339][ T4881] blk_iolatency_init+0x22c/0x430 [ 57.227108][ T4881] blkcg_init_queue+0x3f0/0x484 [ 57.227848][ T4881] blk_alloc_queue+0x3cc/0x4a0 [ 57.228551][ T4881] __blk_mq_alloc_disk+0x5c/0x154 [ 57.229264][ T4881] loop_add+0x240/0x6e0 [ 57.229853][ T4881] loop_control_ioctl+0x130/0x4e0 [ 57.230625][ T4881] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.231385][ T4881] invoke_syscall+0x98/0x2b0 [ 57.232083][ T4881] el0_svc_common+0x138/0x258 [ 57.232761][ T4881] do_el0_svc+0x58/0x13c [ 57.233362][ T4881] el0_svc+0x78/0x1d0 [ 57.233920][ T4881] el0t_64_sync_handler+0xcc/0xe4 [ 57.234622][ T4881] el0t_64_sync+0x1a0/0x1a4 [ 57.253197][ T4883] FAULT_INJECTION: forcing a failure. [ 57.253197][ T4883] name failslab, interval 1, probability 0, space 0, times 0 [ 57.255455][ T4883] CPU: 0 PID: 4883 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.256923][ T4883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.258697][ T4883] Call trace: [ 57.259271][ T4883] dump_backtrace+0x0/0x458 [ 57.260086][ T4883] show_stack+0x2c/0x3c [ 57.260846][ T4883] __dump_stack+0x30/0x40 [ 57.261612][ T4883] dump_stack_lvl+0xf4/0x15c [ 57.262382][ T4883] dump_stack+0x1c/0x5c [ 57.263081][ T4883] should_fail+0x3bc/0x514 [ 57.263857][ T4883] __should_failslab+0xbc/0x10c [ 57.264670][ T4883] should_failslab+0x10/0x28 [ 57.265410][ T4883] slab_pre_alloc_hook+0x64/0xe8 [ 57.266232][ T4883] kmem_cache_alloc_trace+0x98/0x3ec [ 57.267102][ T4883] rand_initialize_disk+0x58/0xb8 [ 57.267944][ T4883] __alloc_disk_node+0x2a8/0x450 [ 57.268741][ T4883] __blk_mq_alloc_disk+0xe8/0x154 [ 57.269594][ T4883] loop_add+0x240/0x6e0 [ 57.270233][ T4883] loop_control_ioctl+0x130/0x4e0 [ 57.271069][ T4883] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.271949][ T4883] invoke_syscall+0x98/0x2b0 [ 57.272772][ T4883] el0_svc_common+0x138/0x258 [ 57.273610][ T4883] do_el0_svc+0x58/0x13c [ 57.274330][ T4883] el0_svc+0x78/0x1d0 [ 57.275031][ T4883] el0t_64_sync_handler+0xcc/0xe4 [ 57.275923][ T4883] el0t_64_sync+0x1a0/0x1a4 [ 57.297009][ T4885] FAULT_INJECTION: forcing a failure. [ 57.297009][ T4885] name failslab, interval 1, probability 0, space 0, times 0 [ 57.299453][ T4885] CPU: 0 PID: 4885 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.301019][ T4885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.302709][ T4885] Call trace: [ 57.303243][ T4885] dump_backtrace+0x0/0x458 [ 57.303983][ T4885] show_stack+0x2c/0x3c [ 57.304699][ T4885] __dump_stack+0x30/0x40 [ 57.305497][ T4885] dump_stack_lvl+0xf4/0x15c [ 57.306301][ T4885] dump_stack+0x1c/0x5c [ 57.306999][ T4885] should_fail+0x3bc/0x514 [ 57.307766][ T4885] __should_failslab+0xbc/0x10c [ 57.308581][ T4885] should_failslab+0x10/0x28 [ 57.309409][ T4885] slab_pre_alloc_hook+0x64/0xe8 [ 57.310288][ T4885] __kmalloc_track_caller+0x70/0x358 [ 57.311243][ T4885] kstrdup+0xe4/0x15c [ 57.311946][ T4885] kstrdup_const+0x54/0x6c [ 57.312654][ T4885] kvasprintf_const+0x120/0x2e4 [ 57.313521][ T4885] kobject_set_name_vargs+0xd8/0x1c8 [ 57.314433][ T4885] dev_set_name+0xe8/0x13c [ 57.315165][ T4885] device_add_disk+0x258/0xacc [ 57.316007][ T4885] loop_add+0x510/0x6e0 [ 57.316660][ T4885] loop_control_ioctl+0x130/0x4e0 [ 57.317493][ T4885] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.318335][ T4885] invoke_syscall+0x98/0x2b0 [ 57.319154][ T4885] el0_svc_common+0x138/0x258 [ 57.319926][ T4885] do_el0_svc+0x58/0x13c [ 57.320622][ T4885] el0_svc+0x78/0x1d0 [ 57.321266][ T4885] el0t_64_sync_handler+0xcc/0xe4 [ 57.322091][ T4885] el0t_64_sync+0x1a0/0x1a4 [ 57.333857][ T4887] FAULT_INJECTION: forcing a failure. [ 57.333857][ T4887] name failslab, interval 1, probability 0, space 0, times 0 [ 57.336191][ T4887] CPU: 0 PID: 4887 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.337745][ T4887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.339455][ T4887] Call trace: [ 57.340025][ T4887] dump_backtrace+0x0/0x458 [ 57.340763][ T4887] show_stack+0x2c/0x3c [ 57.341452][ T4887] __dump_stack+0x30/0x40 [ 57.342184][ T4887] dump_stack_lvl+0xf4/0x15c [ 57.342991][ T4887] dump_stack+0x1c/0x5c [ 57.343693][ T4887] should_fail+0x3bc/0x514 [ 57.344495][ T4887] __should_failslab+0xbc/0x10c [ 57.345341][ T4887] should_failslab+0x10/0x28 [ 57.346160][ T4887] slab_pre_alloc_hook+0x64/0xe8 [ 57.347015][ T4887] kmem_cache_alloc_trace+0x98/0x3ec [ 57.347988][ T4887] blk_iolatency_init+0x64/0x430 [ 57.348821][ T4887] blkcg_init_queue+0x3f0/0x484 [ 57.349633][ T4887] blk_alloc_queue+0x3cc/0x4a0 [ 57.350493][ T4887] __blk_mq_alloc_disk+0x5c/0x154 [ 57.351398][ T4887] loop_add+0x240/0x6e0 [ 57.352081][ T4887] loop_control_ioctl+0x130/0x4e0 [ 57.352997][ T4887] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.353836][ T4887] invoke_syscall+0x98/0x2b0 [ 57.354582][ T4887] el0_svc_common+0x138/0x258 [ 57.355471][ T4887] do_el0_svc+0x58/0x13c [ 57.356236][ T4887] el0_svc+0x78/0x1d0 [ 57.356943][ T4887] el0t_64_sync_handler+0xcc/0xe4 [ 57.357871][ T4887] el0t_64_sync+0x1a0/0x1a4 [ 57.385595][ T4889] FAULT_INJECTION: forcing a failure. [ 57.385595][ T4889] name failslab, interval 1, probability 0, space 0, times 0 [ 57.387996][ T4889] CPU: 1 PID: 4889 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.389443][ T4889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.390955][ T4889] Call trace: [ 57.391516][ T4889] dump_backtrace+0x0/0x458 [ 57.392319][ T4889] show_stack+0x2c/0x3c [ 57.393002][ T4889] __dump_stack+0x30/0x40 [ 57.393761][ T4889] dump_stack_lvl+0xf4/0x15c [ 57.394559][ T4889] dump_stack+0x1c/0x5c [ 57.395253][ T4889] should_fail+0x3bc/0x514 [ 57.395995][ T4889] __should_failslab+0xbc/0x10c [ 57.396837][ T4889] should_failslab+0x10/0x28 [ 57.397633][ T4889] slab_pre_alloc_hook+0x64/0xe8 [ 57.398457][ T4889] kmem_cache_alloc_trace+0x98/0x3ec [ 57.399323][ T4889] device_add+0xbc/0xf90 [ 57.400031][ T4889] device_add_disk+0x2d0/0xacc [ 57.400832][ T4889] loop_add+0x510/0x6e0 [ 57.401528][ T4889] loop_control_ioctl+0x130/0x4e0 [ 57.402428][ T4889] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.403228][ T4889] invoke_syscall+0x98/0x2b0 [ 57.404038][ T4889] el0_svc_common+0x138/0x258 [ 57.404900][ T4889] do_el0_svc+0x58/0x13c [ 57.405638][ T4889] el0_svc+0x78/0x1d0 [ 57.406313][ T4889] el0t_64_sync_handler+0xcc/0xe4 [ 57.407162][ T4889] el0t_64_sync+0x1a0/0x1a4 [ 57.419184][ T4891] FAULT_INJECTION: forcing a failure. [ 57.419184][ T4891] name failslab, interval 1, probability 0, space 0, times 0 [ 57.421375][ T4891] CPU: 1 PID: 4891 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.422866][ T4891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.424554][ T4891] Call trace: [ 57.425132][ T4891] dump_backtrace+0x0/0x458 [ 57.425900][ T4891] show_stack+0x2c/0x3c [ 57.426619][ T4891] __dump_stack+0x30/0x40 [ 57.427424][ T4891] dump_stack_lvl+0xf4/0x15c [ 57.428189][ T4891] dump_stack+0x1c/0x5c [ 57.428877][ T4891] should_fail+0x3bc/0x514 [ 57.429637][ T4891] __should_failslab+0xbc/0x10c [ 57.430474][ T4891] should_failslab+0x10/0x28 [ 57.431181][ T4891] slab_pre_alloc_hook+0x64/0xe8 [ 57.432061][ T4891] kmem_cache_alloc_trace+0x98/0x3ec [ 57.432963][ T4891] rand_initialize_disk+0x58/0xb8 [ 57.433813][ T4891] __alloc_disk_node+0x2a8/0x450 [ 57.434639][ T4891] __blk_mq_alloc_disk+0xe8/0x154 [ 57.435498][ T4891] loop_add+0x240/0x6e0 [ 57.436164][ T4891] loop_control_ioctl+0x130/0x4e0 [ 57.437033][ T4891] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.437943][ T4891] invoke_syscall+0x98/0x2b0 [ 57.438696][ T4891] el0_svc_common+0x138/0x258 [ 57.439517][ T4891] do_el0_svc+0x58/0x13c [ 57.440283][ T4891] el0_svc+0x78/0x1d0 [ 57.440945][ T4891] el0t_64_sync_handler+0xcc/0xe4 [ 57.441918][ T4891] el0t_64_sync+0x1a0/0x1a4 [ 57.454300][ T4893] FAULT_INJECTION: forcing a failure. [ 57.454300][ T4893] name failslab, interval 1, probability 0, space 0, times 0 [ 57.456449][ T4893] CPU: 0 PID: 4893 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.458011][ T4893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.459697][ T4893] Call trace: [ 57.460245][ T4893] dump_backtrace+0x0/0x458 [ 57.461021][ T4893] show_stack+0x2c/0x3c [ 57.461684][ T4893] __dump_stack+0x30/0x40 [ 57.462370][ T4893] dump_stack_lvl+0xf4/0x15c [ 57.463116][ T4893] dump_stack+0x1c/0x5c [ 57.463798][ T4893] should_fail+0x3bc/0x514 [ 57.464561][ T4893] __should_failslab+0xbc/0x10c [ 57.465363][ T4893] should_failslab+0x10/0x28 [ 57.466105][ T4893] slab_pre_alloc_hook+0x64/0xe8 [ 57.466947][ T4893] kmem_cache_alloc+0x94/0x3d4 [ 57.467793][ T4893] __debug_object_init+0x7b0/0xa0c [ 57.468665][ T4893] debug_object_init+0x20/0x2c [ 57.469446][ T4893] init_timer_key+0x54/0x410 [ 57.470219][ T4893] blk_iolatency_init+0x2cc/0x430 [ 57.471048][ T4893] blkcg_init_queue+0x3f0/0x484 [ 57.471861][ T4893] blk_alloc_queue+0x3cc/0x4a0 [ 57.472668][ T4893] __blk_mq_alloc_disk+0x5c/0x154 [ 57.473496][ T4893] loop_add+0x240/0x6e0 [ 57.474171][ T4893] loop_control_ioctl+0x130/0x4e0 [ 57.474997][ T4893] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.475833][ T4893] invoke_syscall+0x98/0x2b0 [ 57.476617][ T4893] el0_svc_common+0x138/0x258 [ 57.477456][ T4893] do_el0_svc+0x58/0x13c [ 57.478149][ T4893] el0_svc+0x78/0x1d0 [ 57.478818][ T4893] el0t_64_sync_handler+0xcc/0xe4 [ 57.479679][ T4893] el0t_64_sync+0x1a0/0x1a4 [ 57.495028][ T4895] FAULT_INJECTION: forcing a failure. [ 57.495028][ T4895] name failslab, interval 1, probability 0, space 0, times 0 [ 57.497186][ T4895] CPU: 1 PID: 4895 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.498778][ T4895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.500422][ T4895] Call trace: [ 57.500965][ T4895] dump_backtrace+0x0/0x458 [ 57.501681][ T4895] show_stack+0x2c/0x3c [ 57.502395][ T4895] __dump_stack+0x30/0x40 [ 57.503154][ T4895] dump_stack_lvl+0xf4/0x15c [ 57.503926][ T4895] dump_stack+0x1c/0x5c [ 57.504619][ T4895] should_fail+0x3bc/0x514 [ 57.505416][ T4895] __should_failslab+0xbc/0x10c [ 57.506243][ T4895] should_failslab+0x10/0x28 [ 57.507023][ T4895] slab_pre_alloc_hook+0x64/0xe8 [ 57.507825][ T4895] kmem_cache_alloc_trace+0x98/0x3ec [ 57.508736][ T4895] device_add+0xbc/0xf90 [ 57.509564][ T4895] device_add_disk+0x2d0/0xacc [ 57.510334][ T4895] loop_add+0x510/0x6e0 [ 57.511032][ T4895] loop_control_ioctl+0x130/0x4e0 [ 57.511927][ T4895] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.512838][ T4895] invoke_syscall+0x98/0x2b0 [ 57.513669][ T4895] el0_svc_common+0x138/0x258 [ 57.514454][ T4895] do_el0_svc+0x58/0x13c [ 57.515216][ T4895] el0_svc+0x78/0x1d0 [ 57.515885][ T4895] el0t_64_sync_handler+0xcc/0xe4 [ 57.516734][ T4895] el0t_64_sync+0x1a0/0x1a4 [ 57.528433][ T4897] FAULT_INJECTION: forcing a failure. [ 57.528433][ T4897] name failslab, interval 1, probability 0, space 0, times 0 [ 57.530558][ T4897] CPU: 1 PID: 4897 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.532136][ T4897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.533812][ T4897] Call trace: [ 57.534348][ T4897] dump_backtrace+0x0/0x458 [ 57.535155][ T4897] show_stack+0x2c/0x3c [ 57.535886][ T4897] __dump_stack+0x30/0x40 [ 57.536539][ T4897] dump_stack_lvl+0xf4/0x15c [ 57.537299][ T4897] dump_stack+0x1c/0x5c [ 57.537961][ T4897] should_fail+0x3bc/0x514 [ 57.538738][ T4897] __should_failslab+0xbc/0x10c [ 57.539539][ T4897] should_failslab+0x10/0x28 [ 57.540346][ T4897] slab_pre_alloc_hook+0x64/0xe8 [ 57.541083][ T4897] kmem_cache_alloc_trace+0x98/0x3ec [ 57.541892][ T4897] rand_initialize_disk+0x58/0xb8 [ 57.542704][ T4897] __alloc_disk_node+0x2a8/0x450 [ 57.543537][ T4897] __blk_mq_alloc_disk+0xe8/0x154 [ 57.544382][ T4897] loop_add+0x240/0x6e0 [ 57.545122][ T4897] loop_control_ioctl+0x130/0x4e0 [ 57.545959][ T4897] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.546780][ T4897] invoke_syscall+0x98/0x2b0 [ 57.547545][ T4897] el0_svc_common+0x138/0x258 [ 57.548317][ T4897] do_el0_svc+0x58/0x13c [ 57.549035][ T4897] el0_svc+0x78/0x1d0 [ 57.549710][ T4897] el0t_64_sync_handler+0xcc/0xe4 [ 57.550611][ T4897] el0t_64_sync+0x1a0/0x1a4 [ 57.564668][ T4899] FAULT_INJECTION: forcing a failure. [ 57.564668][ T4899] name failslab, interval 1, probability 0, space 0, times 0 [ 57.566866][ T4899] CPU: 1 PID: 4899 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.568429][ T4899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.570141][ T4899] Call trace: [ 57.570684][ T4899] dump_backtrace+0x0/0x458 [ 57.571480][ T4899] show_stack+0x2c/0x3c [ 57.572208][ T4899] __dump_stack+0x30/0x40 [ 57.572964][ T4899] dump_stack_lvl+0xf4/0x15c [ 57.573773][ T4899] dump_stack+0x1c/0x5c [ 57.574493][ T4899] should_fail+0x3bc/0x514 [ 57.575299][ T4899] __should_failslab+0xbc/0x10c [ 57.576121][ T4899] should_failslab+0x10/0x28 [ 57.576899][ T4899] slab_pre_alloc_hook+0x64/0xe8 [ 57.577804][ T4899] kmem_cache_alloc+0x94/0x3d4 [ 57.578578][ T4899] __debug_object_init+0x7c8/0xa0c [ 57.579410][ T4899] debug_object_init+0x20/0x2c [ 57.580164][ T4899] __percpu_counter_init+0x10c/0x26c [ 57.581046][ T4899] blkg_rwstat_init+0xa0/0x2b8 [ 57.581848][ T4899] throtl_pd_alloc+0xf0/0x4ec [ 57.582607][ T4899] blkcg_activate_policy+0x204/0xa8c [ 57.583500][ T4899] blk_throtl_init+0x308/0x3ec [ 57.584347][ T4899] blkcg_init_queue+0x3cc/0x484 [ 57.585125][ T4899] blk_alloc_queue+0x3cc/0x4a0 [ 57.585958][ T4899] __blk_mq_alloc_disk+0x5c/0x154 [ 57.586868][ T4899] loop_add+0x240/0x6e0 [ 57.587592][ T4899] loop_control_ioctl+0x130/0x4e0 [ 57.588438][ T4899] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.589295][ T4899] invoke_syscall+0x98/0x2b0 [ 57.590096][ T4899] el0_svc_common+0x138/0x258 [ 57.590899][ T4899] do_el0_svc+0x58/0x13c [ 57.591620][ T4899] el0_svc+0x78/0x1d0 [ 57.592372][ T4899] el0t_64_sync_handler+0xcc/0xe4 [ 57.593175][ T4899] el0t_64_sync+0x1a0/0x1a4 [ 57.606483][ T4901] FAULT_INJECTION: forcing a failure. [ 57.606483][ T4901] name failslab, interval 1, probability 0, space 0, times 0 [ 57.608833][ T4901] CPU: 1 PID: 4901 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.610494][ T4901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.612272][ T4901] Call trace: [ 57.612843][ T4901] dump_backtrace+0x0/0x458 [ 57.613590][ T4901] show_stack+0x2c/0x3c [ 57.614318][ T4901] __dump_stack+0x30/0x40 [ 57.615047][ T4901] dump_stack_lvl+0xf4/0x15c [ 57.615878][ T4901] dump_stack+0x1c/0x5c [ 57.616570][ T4901] should_fail+0x3bc/0x514 [ 57.617299][ T4901] __should_failslab+0xbc/0x10c [ 57.618172][ T4901] should_failslab+0x10/0x28 [ 57.618983][ T4901] slab_pre_alloc_hook+0x64/0xe8 [ 57.619840][ T4901] kmem_cache_alloc_trace+0x98/0x3ec [ 57.620731][ T4901] device_add+0xbc/0xf90 [ 57.621453][ T4901] device_add_disk+0x2d0/0xacc [ 57.622301][ T4901] loop_add+0x510/0x6e0 [ 57.623019][ T4901] loop_control_ioctl+0x130/0x4e0 [ 57.623879][ T4901] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.624719][ T4901] invoke_syscall+0x98/0x2b0 [ 57.625573][ T4901] el0_svc_common+0x138/0x258 [ 57.626358][ T4901] do_el0_svc+0x58/0x13c [ 57.627053][ T4901] el0_svc+0x78/0x1d0 [ 57.627691][ T4901] el0t_64_sync_handler+0xcc/0xe4 [ 57.628576][ T4901] el0t_64_sync+0x1a0/0x1a4 [ 57.639053][ T4903] FAULT_INJECTION: forcing a failure. [ 57.639053][ T4903] name failslab, interval 1, probability 0, space 0, times 0 [ 57.641292][ T4903] CPU: 0 PID: 4903 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.642847][ T4903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.644589][ T4903] Call trace: [ 57.645097][ T4903] dump_backtrace+0x0/0x458 [ 57.645844][ T4903] show_stack+0x2c/0x3c [ 57.646561][ T4903] __dump_stack+0x30/0x40 [ 57.647271][ T4903] dump_stack_lvl+0xf4/0x15c [ 57.648070][ T4903] dump_stack+0x1c/0x5c [ 57.648788][ T4903] should_fail+0x3bc/0x514 [ 57.649528][ T4903] __should_failslab+0xbc/0x10c [ 57.650354][ T4903] should_failslab+0x10/0x28 [ 57.651116][ T4903] slab_pre_alloc_hook+0x64/0xe8 [ 57.651882][ T4903] kmem_cache_alloc_trace+0x98/0x3ec [ 57.652791][ T4903] device_add+0xbc/0xf90 [ 57.653537][ T4903] device_add_disk+0x2d0/0xacc [ 57.654372][ T4903] loop_add+0x510/0x6e0 [ 57.655103][ T4903] loop_control_ioctl+0x130/0x4e0 [ 57.655910][ T4903] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.656656][ T4903] invoke_syscall+0x98/0x2b0 [ 57.657394][ T4903] el0_svc_common+0x138/0x258 [ 57.658191][ T4903] do_el0_svc+0x58/0x13c [ 57.658912][ T4903] el0_svc+0x78/0x1d0 [ 57.659610][ T4903] el0t_64_sync_handler+0xcc/0xe4 [ 57.660543][ T4903] el0t_64_sync+0x1a0/0x1a4 [ 57.671523][ T4905] FAULT_INJECTION: forcing a failure. [ 57.671523][ T4905] name failslab, interval 1, probability 0, space 0, times 0 [ 57.674265][ T4905] CPU: 0 PID: 4905 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.675756][ T4905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.677428][ T4905] Call trace: [ 57.678012][ T4905] dump_backtrace+0x0/0x458 [ 57.678708][ T4905] show_stack+0x2c/0x3c [ 57.679374][ T4905] __dump_stack+0x30/0x40 [ 57.680051][ T4905] dump_stack_lvl+0xf4/0x15c [ 57.680835][ T4905] dump_stack+0x1c/0x5c [ 57.681510][ T4905] should_fail+0x3bc/0x514 [ 57.682271][ T4905] __should_failslab+0xbc/0x10c [ 57.683287][ T4905] should_failslab+0x10/0x28 [ 57.684056][ T4905] slab_pre_alloc_hook+0x64/0xe8 [ 57.684933][ T4905] __kmalloc_track_caller+0x70/0x358 [ 57.685858][ T4905] kstrdup+0xe4/0x15c [ 57.686509][ T4905] kstrdup_const+0x54/0x6c [ 57.687185][ T4905] kvasprintf_const+0x120/0x2e4 [ 57.688027][ T4905] kobject_set_name_vargs+0xd8/0x1c8 [ 57.688927][ T4905] dev_set_name+0xe8/0x13c [ 57.689731][ T4905] device_add_disk+0x258/0xacc [ 57.690620][ T4905] loop_add+0x510/0x6e0 [ 57.691393][ T4905] loop_control_ioctl+0x130/0x4e0 [ 57.692244][ T4905] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.693088][ T4905] invoke_syscall+0x98/0x2b0 [ 57.693906][ T4905] el0_svc_common+0x138/0x258 [ 57.694682][ T4905] do_el0_svc+0x58/0x13c [ 57.695433][ T4905] el0_svc+0x78/0x1d0 [ 57.696174][ T4905] el0t_64_sync_handler+0xcc/0xe4 [ 57.697029][ T4905] el0t_64_sync+0x1a0/0x1a4 [ 57.717155][ T4907] FAULT_INJECTION: forcing a failure. [ 57.717155][ T4907] name failslab, interval 1, probability 0, space 0, times 0 [ 57.719319][ T4907] CPU: 1 PID: 4907 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.720866][ T4907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.722516][ T4907] Call trace: [ 57.723102][ T4907] dump_backtrace+0x0/0x458 [ 57.723856][ T4907] show_stack+0x2c/0x3c [ 57.724595][ T4907] __dump_stack+0x30/0x40 [ 57.725313][ T4907] dump_stack_lvl+0xf4/0x15c [ 57.726067][ T4907] dump_stack+0x1c/0x5c [ 57.726807][ T4907] should_fail+0x3bc/0x514 [ 57.727583][ T4907] __should_failslab+0xbc/0x10c [ 57.728414][ T4907] should_failslab+0x10/0x28 [ 57.729177][ T4907] slab_pre_alloc_hook+0x64/0xe8 [ 57.730086][ T4907] kmem_cache_alloc_trace+0x98/0x3ec [ 57.730956][ T4907] rand_initialize_disk+0x58/0xb8 [ 57.731798][ T4907] __alloc_disk_node+0x2a8/0x450 [ 57.732621][ T4907] __blk_mq_alloc_disk+0xe8/0x154 [ 57.733446][ T4907] loop_add+0x240/0x6e0 [ 57.734062][ T4907] loop_control_ioctl+0x130/0x4e0 [ 57.734921][ T4907] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.735772][ T4907] invoke_syscall+0x98/0x2b0 [ 57.736529][ T4907] el0_svc_common+0x138/0x258 [ 57.737346][ T4907] do_el0_svc+0x58/0x13c [ 57.738064][ T4907] el0_svc+0x78/0x1d0 [ 57.738750][ T4907] el0t_64_sync_handler+0xcc/0xe4 [ 57.739608][ T4907] el0t_64_sync+0x1a0/0x1a4 [ 57.756471][ T4909] FAULT_INJECTION: forcing a failure. [ 57.756471][ T4909] name failslab, interval 1, probability 0, space 0, times 0 [ 57.758694][ T4909] CPU: 0 PID: 4909 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.760213][ T4909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.761837][ T4909] Call trace: [ 57.762379][ T4909] dump_backtrace+0x0/0x458 [ 57.763204][ T4909] show_stack+0x2c/0x3c [ 57.763860][ T4909] __dump_stack+0x30/0x40 [ 57.764580][ T4909] dump_stack_lvl+0xf4/0x15c [ 57.765337][ T4909] dump_stack+0x1c/0x5c [ 57.766025][ T4909] should_fail+0x3bc/0x514 [ 57.766772][ T4909] __should_failslab+0xbc/0x10c [ 57.767601][ T4909] should_failslab+0x10/0x28 [ 57.768380][ T4909] slab_pre_alloc_hook+0x64/0xe8 [ 57.769248][ T4909] kmem_cache_alloc+0x94/0x3d4 [ 57.770040][ T4909] __debug_object_init+0x6d8/0xa0c [ 57.770911][ T4909] debug_object_init+0x20/0x2c [ 57.771760][ T4909] init_timer_key+0x54/0x410 [ 57.772565][ T4909] wb_init+0x498/0x6e4 [ 57.773290][ T4909] bdi_init+0x1b4/0x2f4 [ 57.773948][ T4909] bdi_alloc+0x6c/0x144 [ 57.774690][ T4909] __alloc_disk_node+0x8c/0x450 [ 57.775510][ T4909] __blk_mq_alloc_disk+0xe8/0x154 [ 57.776407][ T4909] loop_add+0x240/0x6e0 [ 57.777096][ T4909] loop_control_ioctl+0x130/0x4e0 [ 57.778021][ T4909] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.778851][ T4909] invoke_syscall+0x98/0x2b0 [ 57.779638][ T4909] el0_svc_common+0x138/0x258 [ 57.780472][ T4909] do_el0_svc+0x58/0x13c [ 57.781192][ T4909] el0_svc+0x78/0x1d0 [ 57.781916][ T4909] el0t_64_sync_handler+0xcc/0xe4 [ 57.782750][ T4909] el0t_64_sync+0x1a0/0x1a4 [ 57.794972][ T4911] FAULT_INJECTION: forcing a failure. [ 57.794972][ T4911] name failslab, interval 1, probability 0, space 0, times 0 [ 57.797342][ T4911] CPU: 0 PID: 4911 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.798889][ T4911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.800638][ T4911] Call trace: [ 57.801190][ T4911] dump_backtrace+0x0/0x458 [ 57.802006][ T4911] show_stack+0x2c/0x3c [ 57.802692][ T4911] __dump_stack+0x30/0x40 [ 57.803443][ T4911] dump_stack_lvl+0xf4/0x15c [ 57.804218][ T4911] dump_stack+0x1c/0x5c [ 57.804958][ T4911] should_fail+0x3bc/0x514 [ 57.805716][ T4911] __should_failslab+0xbc/0x10c [ 57.806569][ T4911] should_failslab+0x10/0x28 [ 57.807327][ T4911] slab_pre_alloc_hook+0x64/0xe8 [ 57.808147][ T4911] kmem_cache_alloc+0x94/0x3d4 [ 57.808963][ T4911] __debug_object_init+0x688/0xa0c [ 57.809876][ T4911] debug_object_init+0x20/0x2c [ 57.810709][ T4911] debug_init+0x40/0x2bc [ 57.811430][ T4911] hrtimer_init+0x44/0x204 [ 57.812205][ T4911] pm_runtime_init+0x1c0/0x2b8 [ 57.812995][ T4911] device_initialize+0x1f0/0x480 [ 57.813856][ T4911] __alloc_disk_node+0x314/0x450 [ 57.814712][ T4911] __blk_mq_alloc_disk+0xe8/0x154 [ 57.815555][ T4911] loop_add+0x240/0x6e0 [ 57.816237][ T4911] loop_control_ioctl+0x130/0x4e0 [ 57.817054][ T4911] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.817847][ T4911] invoke_syscall+0x98/0x2b0 [ 57.818732][ T4911] el0_svc_common+0x138/0x258 [ 57.819574][ T4911] do_el0_svc+0x58/0x13c [ 57.820371][ T4911] el0_svc+0x78/0x1d0 [ 57.821036][ T4911] el0t_64_sync_handler+0xcc/0xe4 [ 57.821892][ T4911] el0t_64_sync+0x1a0/0x1a4 [ 57.834208][ T4913] FAULT_INJECTION: forcing a failure. [ 57.834208][ T4913] name failslab, interval 1, probability 0, space 0, times 0 [ 57.836438][ T4913] CPU: 1 PID: 4913 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.837965][ T4913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.839648][ T4913] Call trace: [ 57.840310][ T4913] dump_backtrace+0x0/0x458 [ 57.841153][ T4913] show_stack+0x2c/0x3c [ 57.841932][ T4913] __dump_stack+0x30/0x40 [ 57.842693][ T4913] dump_stack_lvl+0xf4/0x15c [ 57.843456][ T4913] dump_stack+0x1c/0x5c [ 57.844207][ T4913] should_fail+0x3bc/0x514 [ 57.844977][ T4913] __should_failslab+0xbc/0x10c [ 57.845829][ T4913] should_failslab+0x10/0x28 [ 57.846657][ T4913] slab_pre_alloc_hook+0x64/0xe8 [ 57.847512][ T4913] kmem_cache_alloc_node_trace+0x9c/0x424 [ 57.848485][ T4913] iolatency_pd_alloc+0xac/0x164 [ 57.849353][ T4913] blkcg_activate_policy+0x204/0xa8c [ 57.850269][ T4913] blk_iolatency_init+0x22c/0x430 [ 57.851185][ T4913] blkcg_init_queue+0x3f0/0x484 [ 57.852055][ T4913] blk_alloc_queue+0x3cc/0x4a0 [ 57.852843][ T4913] __blk_mq_alloc_disk+0x5c/0x154 [ 57.853718][ T4913] loop_add+0x240/0x6e0 [ 57.854370][ T4913] loop_control_ioctl+0x130/0x4e0 [ 57.855284][ T4913] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.856151][ T4913] invoke_syscall+0x98/0x2b0 [ 57.856890][ T4913] el0_svc_common+0x138/0x258 [ 57.857680][ T4913] do_el0_svc+0x58/0x13c [ 57.858432][ T4913] el0_svc+0x78/0x1d0 [ 57.859069][ T4913] el0t_64_sync_handler+0xcc/0xe4 [ 57.859930][ T4913] el0t_64_sync+0x1a0/0x1a4 [ 57.874742][ T4915] FAULT_INJECTION: forcing a failure. [ 57.874742][ T4915] name failslab, interval 1, probability 0, space 0, times 0 [ 57.876951][ T4915] CPU: 0 PID: 4915 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.878430][ T4915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.880195][ T4915] Call trace: [ 57.880725][ T4915] dump_backtrace+0x0/0x458 [ 57.881460][ T4915] show_stack+0x2c/0x3c [ 57.882207][ T4915] __dump_stack+0x30/0x40 [ 57.882910][ T4915] dump_stack_lvl+0xf4/0x15c [ 57.883605][ T4915] dump_stack+0x1c/0x5c [ 57.884199][ T4915] should_fail+0x3bc/0x514 [ 57.884985][ T4915] __should_failslab+0xbc/0x10c [ 57.885839][ T4915] should_failslab+0x10/0x28 [ 57.886622][ T4915] slab_pre_alloc_hook+0x64/0xe8 [ 57.887449][ T4915] kmem_cache_alloc+0x94/0x3d4 [ 57.888396][ T4915] __debug_object_init+0x6d8/0xa0c [ 57.889344][ T4915] debug_object_init+0x20/0x2c [ 57.890197][ T4915] __percpu_counter_init+0x10c/0x26c [ 57.891097][ T4915] wb_init+0x5f8/0x6e4 [ 57.891790][ T4915] bdi_init+0x1b4/0x2f4 [ 57.892482][ T4915] bdi_alloc+0x6c/0x144 [ 57.893183][ T4915] __alloc_disk_node+0x8c/0x450 [ 57.893951][ T4915] __blk_mq_alloc_disk+0xe8/0x154 [ 57.894784][ T4915] loop_add+0x240/0x6e0 [ 57.895488][ T4915] loop_control_ioctl+0x130/0x4e0 [ 57.896356][ T4915] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.897179][ T4915] invoke_syscall+0x98/0x2b0 [ 57.897954][ T4915] el0_svc_common+0x138/0x258 [ 57.898725][ T4915] do_el0_svc+0x58/0x13c [ 57.899442][ T4915] el0_svc+0x78/0x1d0 [ 57.900138][ T4915] el0t_64_sync_handler+0xcc/0xe4 [ 57.900988][ T4915] el0t_64_sync+0x1a0/0x1a4 [ 57.915163][ T4917] FAULT_INJECTION: forcing a failure. [ 57.915163][ T4917] name failslab, interval 1, probability 0, space 0, times 0 [ 57.917344][ T4917] CPU: 1 PID: 4917 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.918796][ T4917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.920430][ T4917] Call trace: [ 57.920881][ T4917] dump_backtrace+0x0/0x458 [ 57.921564][ T4917] show_stack+0x2c/0x3c [ 57.922222][ T4917] __dump_stack+0x30/0x40 [ 57.922969][ T4917] dump_stack_lvl+0xf4/0x15c [ 57.923773][ T4917] dump_stack+0x1c/0x5c [ 57.924467][ T4917] should_fail+0x3bc/0x514 [ 57.925195][ T4917] __should_failslab+0xbc/0x10c [ 57.925988][ T4917] should_failslab+0x10/0x28 [ 57.926702][ T4917] slab_pre_alloc_hook+0x64/0xe8 [ 57.927510][ T4917] kmem_cache_alloc_trace+0x98/0x3ec [ 57.928359][ T4917] device_add+0xbc/0xf90 [ 57.929057][ T4917] device_add_disk+0x2d0/0xacc [ 57.929840][ T4917] loop_add+0x510/0x6e0 [ 57.930550][ T4917] loop_control_ioctl+0x130/0x4e0 [ 57.931386][ T4917] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.932192][ T4917] invoke_syscall+0x98/0x2b0 [ 57.932957][ T4917] el0_svc_common+0x138/0x258 [ 57.933667][ T4917] do_el0_svc+0x58/0x13c [ 57.934309][ T4917] el0_svc+0x78/0x1d0 [ 57.934977][ T4917] el0t_64_sync_handler+0xcc/0xe4 [ 57.935784][ T4917] el0t_64_sync+0x1a0/0x1a4 [ 57.948350][ T4919] FAULT_INJECTION: forcing a failure. [ 57.948350][ T4919] name failslab, interval 1, probability 0, space 0, times 0 [ 57.950578][ T4919] CPU: 0 PID: 4919 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.952183][ T4919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.953978][ T4919] Call trace: [ 57.954517][ T4919] dump_backtrace+0x0/0x458 [ 57.955372][ T4919] show_stack+0x2c/0x3c [ 57.956057][ T4919] __dump_stack+0x30/0x40 [ 57.956772][ T4919] dump_stack_lvl+0xf4/0x15c [ 57.957476][ T4919] dump_stack+0x1c/0x5c [ 57.958195][ T4919] should_fail+0x3bc/0x514 [ 57.958969][ T4919] __should_failslab+0xbc/0x10c [ 57.959835][ T4919] should_failslab+0x10/0x28 [ 57.960625][ T4919] slab_pre_alloc_hook+0x64/0xe8 [ 57.961439][ T4919] kmem_cache_alloc_trace+0x98/0x3ec [ 57.962337][ T4919] device_add+0xbc/0xf90 [ 57.963102][ T4919] device_add_disk+0x2d0/0xacc [ 57.964013][ T4919] loop_add+0x510/0x6e0 [ 57.964778][ T4919] loop_control_ioctl+0x130/0x4e0 [ 57.965682][ T4919] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.966451][ T4919] invoke_syscall+0x98/0x2b0 [ 57.967274][ T4919] el0_svc_common+0x138/0x258 [ 57.968105][ T4919] do_el0_svc+0x58/0x13c [ 57.968837][ T4919] el0_svc+0x78/0x1d0 [ 57.969517][ T4919] el0t_64_sync_handler+0xcc/0xe4 [ 57.970383][ T4919] el0t_64_sync+0x1a0/0x1a4 [ 57.981396][ T4921] FAULT_INJECTION: forcing a failure. [ 57.981396][ T4921] name failslab, interval 1, probability 0, space 0, times 0 [ 57.983593][ T4921] CPU: 0 PID: 4921 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.985099][ T4921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.986908][ T4921] Call trace: [ 57.987518][ T4921] dump_backtrace+0x0/0x458 [ 57.988280][ T4921] show_stack+0x2c/0x3c [ 57.989106][ T4921] __dump_stack+0x30/0x40 [ 57.989842][ T4921] dump_stack_lvl+0xf4/0x15c [ 57.990562][ T4921] dump_stack+0x1c/0x5c [ 57.991239][ T4921] should_fail+0x3bc/0x514 [ 57.991928][ T4921] __should_failslab+0xbc/0x10c [ 57.992771][ T4921] should_failslab+0x10/0x28 [ 57.993565][ T4921] slab_pre_alloc_hook+0x64/0xe8 [ 57.994415][ T4921] kmem_cache_alloc_trace+0x98/0x3ec [ 57.995367][ T4921] device_add+0xbc/0xf90 [ 57.996077][ T4921] device_add_disk+0x2d0/0xacc [ 57.996873][ T4921] loop_add+0x510/0x6e0 [ 57.997616][ T4921] loop_control_ioctl+0x130/0x4e0 [ 57.998457][ T4921] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.999258][ T4921] invoke_syscall+0x98/0x2b0 [ 58.000042][ T4921] el0_svc_common+0x138/0x258 [ 58.000816][ T4921] do_el0_svc+0x58/0x13c [ 58.001536][ T4921] el0_svc+0x78/0x1d0 [ 58.002206][ T4921] el0t_64_sync_handler+0xcc/0xe4 [ 58.003070][ T4921] el0t_64_sync+0x1a0/0x1a4 [ 58.012879][ T4923] FAULT_INJECTION: forcing a failure. [ 58.012879][ T4923] name failslab, interval 1, probability 0, space 0, times 0 [ 58.015026][ T4923] CPU: 0 PID: 4923 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.016529][ T4923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.018246][ T4923] Call trace: [ 58.018770][ T4923] dump_backtrace+0x0/0x458 [ 58.019529][ T4923] show_stack+0x2c/0x3c [ 58.020198][ T4923] __dump_stack+0x30/0x40 [ 58.020821][ T4923] dump_stack_lvl+0xf4/0x15c [ 58.021607][ T4923] dump_stack+0x1c/0x5c [ 58.022300][ T4923] should_fail+0x3bc/0x514 [ 58.023050][ T4923] __should_failslab+0xbc/0x10c [ 58.023842][ T4923] should_failslab+0x10/0x28 [ 58.024647][ T4923] slab_pre_alloc_hook+0x64/0xe8 [ 58.025504][ T4923] kmem_cache_alloc+0x94/0x3d4 [ 58.026333][ T4923] __debug_object_init+0x688/0xa0c [ 58.027181][ T4923] debug_object_init+0x20/0x2c [ 58.027995][ T4923] debug_init+0x40/0x2bc [ 58.028691][ T4923] hrtimer_init+0x44/0x204 [ 58.029456][ T4923] pm_runtime_init+0x1c0/0x2b8 [ 58.030317][ T4923] device_initialize+0x1f0/0x480 [ 58.031100][ T4923] __alloc_disk_node+0x314/0x450 [ 58.031963][ T4923] __blk_mq_alloc_disk+0xe8/0x154 [ 58.032819][ T4923] loop_add+0x240/0x6e0 [ 58.033511][ T4923] loop_control_ioctl+0x130/0x4e0 [ 58.034379][ T4923] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.035199][ T4923] invoke_syscall+0x98/0x2b0 [ 58.035956][ T4923] el0_svc_common+0x138/0x258 [ 58.036718][ T4923] do_el0_svc+0x58/0x13c [ 58.037444][ T4923] el0_svc+0x78/0x1d0 [ 58.038122][ T4923] el0t_64_sync_handler+0xcc/0xe4 [ 58.038964][ T4923] el0t_64_sync+0x1a0/0x1a4 [ 58.055318][ T4925] FAULT_INJECTION: forcing a failure. [ 58.055318][ T4925] name failslab, interval 1, probability 0, space 0, times 0 [ 58.057643][ T4925] CPU: 1 PID: 4925 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.059178][ T4925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.060896][ T4925] Call trace: [ 58.061432][ T4925] dump_backtrace+0x0/0x458 [ 58.062176][ T4925] show_stack+0x2c/0x3c [ 58.062839][ T4925] __dump_stack+0x30/0x40 [ 58.063609][ T4925] dump_stack_lvl+0xf4/0x15c [ 58.064429][ T4925] dump_stack+0x1c/0x5c [ 58.065140][ T4925] should_fail+0x3bc/0x514 [ 58.065879][ T4925] __should_failslab+0xbc/0x10c [ 58.066775][ T4925] should_failslab+0x10/0x28 [ 58.067554][ T4925] slab_pre_alloc_hook+0x64/0xe8 [ 58.068384][ T4925] kmem_cache_alloc_trace+0x98/0x3ec [ 58.069269][ T4925] device_add+0xbc/0xf90 [ 58.069983][ T4925] device_add_disk+0x2d0/0xacc [ 58.070821][ T4925] loop_add+0x510/0x6e0 [ 58.071462][ T4925] loop_control_ioctl+0x130/0x4e0 [ 58.072237][ T4925] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.073044][ T4925] invoke_syscall+0x98/0x2b0 [ 58.073770][ T4925] el0_svc_common+0x138/0x258 [ 58.074552][ T4925] do_el0_svc+0x58/0x13c [ 58.075262][ T4925] el0_svc+0x78/0x1d0 [ 58.075900][ T4925] el0t_64_sync_handler+0xcc/0xe4 [ 58.076717][ T4925] el0t_64_sync+0x1a0/0x1a4 [ 58.088705][ T4927] FAULT_INJECTION: forcing a failure. [ 58.088705][ T4927] name failslab, interval 1, probability 0, space 0, times 0 [ 58.090971][ T4927] CPU: 0 PID: 4927 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.092446][ T4927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.094203][ T4927] Call trace: [ 58.094730][ T4927] dump_backtrace+0x0/0x458 [ 58.095456][ T4927] show_stack+0x2c/0x3c [ 58.096073][ T4927] __dump_stack+0x30/0x40 [ 58.096900][ T4927] dump_stack_lvl+0xf4/0x15c [ 58.097735][ T4927] dump_stack+0x1c/0x5c [ 58.098389][ T4927] should_fail+0x3bc/0x514 [ 58.099130][ T4927] __should_failslab+0xbc/0x10c [ 58.100008][ T4927] should_failslab+0x10/0x28 [ 58.100826][ T4927] slab_pre_alloc_hook+0x64/0xe8 [ 58.101619][ T4927] kmem_cache_alloc_trace+0x98/0x3ec [ 58.102564][ T4927] rand_initialize_disk+0x58/0xb8 [ 58.103404][ T4927] __alloc_disk_node+0x2a8/0x450 [ 58.104325][ T4927] __blk_mq_alloc_disk+0xe8/0x154 [ 58.105165][ T4927] loop_add+0x240/0x6e0 [ 58.105875][ T4927] loop_control_ioctl+0x130/0x4e0 [ 58.106792][ T4927] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.107600][ T4927] invoke_syscall+0x98/0x2b0 [ 58.108402][ T4927] el0_svc_common+0x138/0x258 [ 58.109142][ T4927] do_el0_svc+0x58/0x13c [ 58.109818][ T4927] el0_svc+0x78/0x1d0 [ 58.110504][ T4927] el0t_64_sync_handler+0xcc/0xe4 [ 58.111342][ T4927] el0t_64_sync+0x1a0/0x1a4 [ 58.124733][ T4929] FAULT_INJECTION: forcing a failure. [ 58.124733][ T4929] name failslab, interval 1, probability 0, space 0, times 0 [ 58.127033][ T4929] CPU: 1 PID: 4929 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.128528][ T4929] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.130277][ T4929] Call trace: [ 58.130823][ T4929] dump_backtrace+0x0/0x458 [ 58.131548][ T4929] show_stack+0x2c/0x3c [ 58.132256][ T4929] __dump_stack+0x30/0x40 [ 58.132956][ T4929] dump_stack_lvl+0xf4/0x15c [ 58.133745][ T4929] dump_stack+0x1c/0x5c [ 58.134448][ T4929] should_fail+0x3bc/0x514 [ 58.135187][ T4929] __should_failslab+0xbc/0x10c [ 58.135973][ T4929] should_failslab+0x10/0x28 [ 58.136728][ T4929] slab_pre_alloc_hook+0x64/0xe8 [ 58.137538][ T4929] __kmalloc_track_caller+0x70/0x358 [ 58.138456][ T4929] kstrdup+0xe4/0x15c [ 58.139150][ T4929] kstrdup_const+0x54/0x6c [ 58.139836][ T4929] kvasprintf_const+0x120/0x2e4 [ 58.140659][ T4929] kobject_set_name_vargs+0xd8/0x1c8 [ 58.141562][ T4929] dev_set_name+0xe8/0x13c [ 58.142315][ T4929] device_add_disk+0x258/0xacc [ 58.143130][ T4929] loop_add+0x510/0x6e0 [ 58.143878][ T4929] loop_control_ioctl+0x130/0x4e0 [ 58.144727][ T4929] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.145646][ T4929] invoke_syscall+0x98/0x2b0 [ 58.146421][ T4929] el0_svc_common+0x138/0x258 [ 58.147195][ T4929] do_el0_svc+0x58/0x13c [ 58.147897][ T4929] el0_svc+0x78/0x1d0 [ 58.148634][ T4929] el0t_64_sync_handler+0xcc/0xe4 [ 58.149408][ T4929] el0t_64_sync+0x1a0/0x1a4 [ 58.162906][ T4931] FAULT_INJECTION: forcing a failure. [ 58.162906][ T4931] name failslab, interval 1, probability 0, space 0, times 0 [ 58.165139][ T4931] CPU: 1 PID: 4931 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.166589][ T4931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.168411][ T4931] Call trace: [ 58.168946][ T4931] dump_backtrace+0x0/0x458 [ 58.169701][ T4931] show_stack+0x2c/0x3c [ 58.170432][ T4931] __dump_stack+0x30/0x40 [ 58.171126][ T4931] dump_stack_lvl+0xf4/0x15c [ 58.171926][ T4931] dump_stack+0x1c/0x5c [ 58.172662][ T4931] should_fail+0x3bc/0x514 [ 58.173405][ T4931] __should_failslab+0xbc/0x10c [ 58.174183][ T4931] should_failslab+0x10/0x28 [ 58.174958][ T4931] slab_pre_alloc_hook+0x64/0xe8 [ 58.175848][ T4931] kmem_cache_alloc_trace+0x98/0x3ec [ 58.176753][ T4931] device_add+0xbc/0xf90 [ 58.177448][ T4931] device_add_disk+0x2d0/0xacc [ 58.178246][ T4931] loop_add+0x510/0x6e0 [ 58.178926][ T4931] loop_control_ioctl+0x130/0x4e0 [ 58.179696][ T4931] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.180546][ T4931] invoke_syscall+0x98/0x2b0 [ 58.181302][ T4931] el0_svc_common+0x138/0x258 [ 58.182100][ T4931] do_el0_svc+0x58/0x13c [ 58.182849][ T4931] el0_svc+0x78/0x1d0 [ 58.183533][ T4931] el0t_64_sync_handler+0xcc/0xe4 [ 58.184357][ T4931] el0t_64_sync+0x1a0/0x1a4 [ 58.193746][ T4933] FAULT_INJECTION: forcing a failure. [ 58.193746][ T4933] name failslab, interval 1, probability 0, space 0, times 0 [ 58.195877][ T4933] CPU: 1 PID: 4933 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.197396][ T4933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.199136][ T4933] Call trace: [ 58.199670][ T4933] dump_backtrace+0x0/0x458 [ 58.200439][ T4933] show_stack+0x2c/0x3c [ 58.201110][ T4933] __dump_stack+0x30/0x40 [ 58.201866][ T4933] dump_stack_lvl+0xf4/0x15c [ 58.202642][ T4933] dump_stack+0x1c/0x5c [ 58.203404][ T4933] should_fail+0x3bc/0x514 [ 58.204149][ T4933] __should_failslab+0xbc/0x10c [ 58.204963][ T4933] should_failslab+0x10/0x28 [ 58.205729][ T4933] slab_pre_alloc_hook+0x64/0xe8 [ 58.206569][ T4933] kmem_cache_alloc_trace+0x98/0x3ec [ 58.207506][ T4933] device_add+0xbc/0xf90 [ 58.208242][ T4933] device_add_disk+0x2d0/0xacc [ 58.209078][ T4933] loop_add+0x510/0x6e0 [ 58.209779][ T4933] loop_control_ioctl+0x130/0x4e0 [ 58.210635][ T4933] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.211534][ T4933] invoke_syscall+0x98/0x2b0 [ 58.212320][ T4933] el0_svc_common+0x138/0x258 [ 58.213095][ T4933] do_el0_svc+0x58/0x13c [ 58.213811][ T4933] el0_svc+0x78/0x1d0 [ 58.214490][ T4933] el0t_64_sync_handler+0xcc/0xe4 [ 58.215375][ T4933] el0t_64_sync+0x1a0/0x1a4 [ 58.225536][ T4935] FAULT_INJECTION: forcing a failure. [ 58.225536][ T4935] name failslab, interval 1, probability 0, space 0, times 0 [ 58.227794][ T4935] CPU: 0 PID: 4935 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.229309][ T4935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.231019][ T4935] Call trace: [ 58.231580][ T4935] dump_backtrace+0x0/0x458 [ 58.232356][ T4935] show_stack+0x2c/0x3c [ 58.233051][ T4935] __dump_stack+0x30/0x40 [ 58.233862][ T4935] dump_stack_lvl+0xf4/0x15c [ 58.234630][ T4935] dump_stack+0x1c/0x5c [ 58.235339][ T4935] should_fail+0x3bc/0x514 [ 58.236160][ T4935] __should_failslab+0xbc/0x10c [ 58.237048][ T4935] should_failslab+0x10/0x28 [ 58.237906][ T4935] slab_pre_alloc_hook+0x64/0xe8 [ 58.238784][ T4935] kmem_cache_alloc_trace+0x98/0x3ec [ 58.239755][ T4935] blk_iolatency_init+0x64/0x430 [ 58.240673][ T4935] blkcg_init_queue+0x3f0/0x484 [ 58.241539][ T4935] blk_alloc_queue+0x3cc/0x4a0 [ 58.242329][ T4935] __blk_mq_alloc_disk+0x5c/0x154 [ 58.243223][ T4935] loop_add+0x240/0x6e0 [ 58.243946][ T4935] loop_control_ioctl+0x130/0x4e0 [ 58.244772][ T4935] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.245603][ T4935] invoke_syscall+0x98/0x2b0 [ 58.246408][ T4935] el0_svc_common+0x138/0x258 [ 58.247185][ T4935] do_el0_svc+0x58/0x13c [ 58.247953][ T4935] el0_svc+0x78/0x1d0 [ 58.248625][ T4935] el0t_64_sync_handler+0xcc/0xe4 [ 58.249462][ T4935] el0t_64_sync+0x1a0/0x1a4 [ 58.261321][ T4937] FAULT_INJECTION: forcing a failure. [ 58.261321][ T4937] name failslab, interval 1, probability 0, space 0, times 0 [ 58.263711][ T4937] CPU: 0 PID: 4937 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.265196][ T4937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.267044][ T4937] Call trace: [ 58.267647][ T4937] dump_backtrace+0x0/0x458 [ 58.268438][ T4937] show_stack+0x2c/0x3c [ 58.269123][ T4937] __dump_stack+0x30/0x40 [ 58.269876][ T4937] dump_stack_lvl+0xf4/0x15c [ 58.270689][ T4937] dump_stack+0x1c/0x5c [ 58.271427][ T4937] should_fail+0x3bc/0x514 [ 58.272164][ T4937] __should_failslab+0xbc/0x10c [ 58.272984][ T4937] should_failslab+0x10/0x28 [ 58.273724][ T4937] slab_pre_alloc_hook+0x64/0xe8 [ 58.274517][ T4937] __kmalloc_track_caller+0x70/0x358 [ 58.275476][ T4937] kstrdup+0xe4/0x15c [ 58.276128][ T4937] kstrdup_const+0x54/0x6c [ 58.276935][ T4937] kvasprintf_const+0x120/0x2e4 [ 58.277736][ T4937] kobject_set_name_vargs+0xd8/0x1c8 [ 58.278605][ T4937] dev_set_name+0xe8/0x13c [ 58.279357][ T4937] device_add_disk+0x258/0xacc [ 58.280185][ T4937] loop_add+0x510/0x6e0 [ 58.280901][ T4937] loop_control_ioctl+0x130/0x4e0 [ 58.281705][ T4937] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.282539][ T4937] invoke_syscall+0x98/0x2b0 [ 58.283351][ T4937] el0_svc_common+0x138/0x258 [ 58.284196][ T4937] do_el0_svc+0x58/0x13c [ 58.284896][ T4937] el0_svc+0x78/0x1d0 [ 58.285683][ T4937] el0t_64_sync_handler+0xcc/0xe4 [ 58.286554][ T4937] el0t_64_sync+0x1a0/0x1a4 [ 58.297185][ T4939] FAULT_INJECTION: forcing a failure. [ 58.297185][ T4939] name failslab, interval 1, probability 0, space 0, times 0 [ 58.299436][ T4939] CPU: 1 PID: 4939 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.300898][ T4939] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.302568][ T4939] Call trace: [ 58.303137][ T4939] dump_backtrace+0x0/0x458 [ 58.303917][ T4939] show_stack+0x2c/0x3c [ 58.304597][ T4939] __dump_stack+0x30/0x40 [ 58.305321][ T4939] dump_stack_lvl+0xf4/0x15c [ 58.306123][ T4939] dump_stack+0x1c/0x5c [ 58.306814][ T4939] should_fail+0x3bc/0x514 [ 58.307595][ T4939] __should_failslab+0xbc/0x10c [ 58.308406][ T4939] should_failslab+0x10/0x28 [ 58.309181][ T4939] slab_pre_alloc_hook+0x64/0xe8 [ 58.309965][ T4939] kmem_cache_alloc_trace+0x98/0x3ec [ 58.310822][ T4939] device_add+0xbc/0xf90 [ 58.311491][ T4939] device_add_disk+0x2d0/0xacc [ 58.312281][ T4939] loop_add+0x510/0x6e0 [ 58.312980][ T4939] loop_control_ioctl+0x130/0x4e0 [ 58.313874][ T4939] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.314681][ T4939] invoke_syscall+0x98/0x2b0 [ 58.315501][ T4939] el0_svc_common+0x138/0x258 [ 58.316277][ T4939] do_el0_svc+0x58/0x13c [ 58.317048][ T4939] el0_svc+0x78/0x1d0 [ 58.317738][ T4939] el0t_64_sync_handler+0xcc/0xe4 [ 58.318639][ T4939] el0t_64_sync+0x1a0/0x1a4 [ 58.328998][ T4941] FAULT_INJECTION: forcing a failure. [ 58.328998][ T4941] name failslab, interval 1, probability 0, space 0, times 0 [ 58.331111][ T4941] CPU: 1 PID: 4941 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.332662][ T4941] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.334356][ T4941] Call trace: [ 58.334967][ T4941] dump_backtrace+0x0/0x458 [ 58.335695][ T4941] show_stack+0x2c/0x3c [ 58.336382][ T4941] __dump_stack+0x30/0x40 [ 58.337111][ T4941] dump_stack_lvl+0xf4/0x15c [ 58.337882][ T4941] dump_stack+0x1c/0x5c [ 58.338630][ T4941] should_fail+0x3bc/0x514 [ 58.339385][ T4941] __should_failslab+0xbc/0x10c [ 58.340150][ T4941] should_failslab+0x10/0x28 [ 58.340901][ T4941] slab_pre_alloc_hook+0x64/0xe8 [ 58.341758][ T4941] kmem_cache_alloc_node_trace+0x9c/0x424 [ 58.342713][ T4941] throtl_pd_alloc+0xac/0x4ec [ 58.343512][ T4941] blkcg_activate_policy+0x204/0xa8c [ 58.344376][ T4941] blk_throtl_init+0x308/0x3ec [ 58.345169][ T4941] blkcg_init_queue+0x3cc/0x484 [ 58.346007][ T4941] blk_alloc_queue+0x3cc/0x4a0 [ 58.346838][ T4941] __blk_mq_alloc_disk+0x5c/0x154 [ 58.347699][ T4941] loop_add+0x240/0x6e0 [ 58.348406][ T4941] loop_control_ioctl+0x130/0x4e0 [ 58.349245][ T4941] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.350081][ T4941] invoke_syscall+0x98/0x2b0 [ 58.350829][ T4941] el0_svc_common+0x138/0x258 [ 58.351614][ T4941] do_el0_svc+0x58/0x13c [ 58.352306][ T4941] el0_svc+0x78/0x1d0 [ 58.352957][ T4941] el0t_64_sync_handler+0xcc/0xe4 [ 58.353788][ T4941] el0t_64_sync+0x1a0/0x1a4 [ 58.367478][ T4943] FAULT_INJECTION: forcing a failure. [ 58.367478][ T4943] name failslab, interval 1, probability 0, space 0, times 0 [ 58.369871][ T4943] CPU: 1 PID: 4943 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.371403][ T4943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.373224][ T4943] Call trace: [ 58.373764][ T4943] dump_backtrace+0x0/0x458 [ 58.374507][ T4943] show_stack+0x2c/0x3c [ 58.375239][ T4943] __dump_stack+0x30/0x40 [ 58.375970][ T4943] dump_stack_lvl+0xf4/0x15c [ 58.376699][ T4943] dump_stack+0x1c/0x5c [ 58.377414][ T4943] should_fail+0x3bc/0x514 [ 58.378158][ T4943] __should_failslab+0xbc/0x10c [ 58.378976][ T4943] should_failslab+0x10/0x28 [ 58.379783][ T4943] slab_pre_alloc_hook+0x64/0xe8 [ 58.380626][ T4943] kmem_cache_alloc_trace+0x98/0x3ec [ 58.381600][ T4943] blk_iolatency_init+0x64/0x430 [ 58.382427][ T4943] blkcg_init_queue+0x3f0/0x484 [ 58.383261][ T4943] blk_alloc_queue+0x3cc/0x4a0 [ 58.384149][ T4943] __blk_mq_alloc_disk+0x5c/0x154 [ 58.384993][ T4943] loop_add+0x240/0x6e0 [ 58.385667][ T4943] loop_control_ioctl+0x130/0x4e0 [ 58.386491][ T4943] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.387294][ T4943] invoke_syscall+0x98/0x2b0 [ 58.388029][ T4943] el0_svc_common+0x138/0x258 [ 58.388857][ T4943] do_el0_svc+0x58/0x13c [ 58.389563][ T4943] el0_svc+0x78/0x1d0 [ 58.390299][ T4943] el0t_64_sync_handler+0xcc/0xe4 [ 58.391107][ T4943] el0t_64_sync+0x1a0/0x1a4 [ 58.400651][ T4945] FAULT_INJECTION: forcing a failure. [ 58.400651][ T4945] name failslab, interval 1, probability 0, space 0, times 0 [ 58.403298][ T4945] CPU: 0 PID: 4945 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.404730][ T4945] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.406447][ T4945] Call trace: [ 58.407008][ T4945] dump_backtrace+0x0/0x458 [ 58.407813][ T4945] show_stack+0x2c/0x3c [ 58.408532][ T4945] __dump_stack+0x30/0x40 [ 58.409282][ T4945] dump_stack_lvl+0xf4/0x15c [ 58.410088][ T4945] dump_stack+0x1c/0x5c [ 58.410799][ T4945] should_fail+0x3bc/0x514 [ 58.411532][ T4945] __should_failslab+0xbc/0x10c [ 58.412350][ T4945] should_failslab+0x10/0x28 [ 58.413105][ T4945] slab_pre_alloc_hook+0x64/0xe8 [ 58.413985][ T4945] kmem_cache_alloc+0x94/0x3d4 [ 58.414875][ T4945] __debug_object_init+0x6ec/0xa0c [ 58.415726][ T4945] debug_object_init+0x20/0x2c [ 58.416521][ T4945] __init_work+0x58/0x68 [ 58.417238][ T4945] blk_mq_init_allocated_queue+0x3a0/0x158c [ 58.418307][ T4945] __blk_mq_alloc_disk+0x88/0x154 [ 58.419194][ T4945] loop_add+0x240/0x6e0 [ 58.419838][ T4945] loop_control_ioctl+0x130/0x4e0 [ 58.420610][ T4945] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.421445][ T4945] invoke_syscall+0x98/0x2b0 [ 58.422278][ T4945] el0_svc_common+0x138/0x258 [ 58.423083][ T4945] do_el0_svc+0x58/0x13c [ 58.423838][ T4945] el0_svc+0x78/0x1d0 [ 58.424486][ T4945] el0t_64_sync_handler+0xcc/0xe4 [ 58.425392][ T4945] el0t_64_sync+0x1a0/0x1a4 [ 58.439315][ T4947] FAULT_INJECTION: forcing a failure. [ 58.439315][ T4947] name failslab, interval 1, probability 0, space 0, times 0 [ 58.441644][ T4947] CPU: 1 PID: 4947 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.443220][ T4947] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.444969][ T4947] Call trace: [ 58.445494][ T4947] dump_backtrace+0x0/0x458 [ 58.446262][ T4947] show_stack+0x2c/0x3c [ 58.446896][ T4947] __dump_stack+0x30/0x40 [ 58.447587][ T4947] dump_stack_lvl+0xf4/0x15c [ 58.448334][ T4947] dump_stack+0x1c/0x5c [ 58.448964][ T4947] should_fail+0x3bc/0x514 [ 58.449710][ T4947] __should_failslab+0xbc/0x10c [ 58.450566][ T4947] should_failslab+0x10/0x28 [ 58.451292][ T4947] slab_pre_alloc_hook+0x64/0xe8 [ 58.452054][ T4947] __kmalloc_track_caller+0x70/0x358 [ 58.452948][ T4947] kstrdup+0xe4/0x15c [ 58.453615][ T4947] kstrdup_const+0x54/0x6c [ 58.454362][ T4947] kvasprintf_const+0x120/0x2e4 [ 58.455124][ T4947] kobject_set_name_vargs+0xd8/0x1c8 [ 58.456095][ T4947] dev_set_name+0xe8/0x13c [ 58.456869][ T4947] device_add_disk+0x258/0xacc [ 58.457672][ T4947] loop_add+0x510/0x6e0 [ 58.458375][ T4947] loop_control_ioctl+0x130/0x4e0 [ 58.459213][ T4947] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.460006][ T4947] invoke_syscall+0x98/0x2b0 [ 58.460765][ T4947] el0_svc_common+0x138/0x258 [ 58.461530][ T4947] do_el0_svc+0x58/0x13c [ 58.462242][ T4947] el0_svc+0x78/0x1d0 [ 58.462905][ T4947] el0t_64_sync_handler+0xcc/0xe4 [ 58.463765][ T4947] el0t_64_sync+0x1a0/0x1a4 [ 58.475162][ T4949] FAULT_INJECTION: forcing a failure. [ 58.475162][ T4949] name failslab, interval 1, probability 0, space 0, times 0 [ 58.477381][ T4949] CPU: 1 PID: 4949 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.478922][ T4949] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.480738][ T4949] Call trace: [ 58.481246][ T4949] dump_backtrace+0x0/0x458 [ 58.481942][ T4949] show_stack+0x2c/0x3c [ 58.482612][ T4949] __dump_stack+0x30/0x40 [ 58.483338][ T4949] dump_stack_lvl+0xf4/0x15c [ 58.484123][ T4949] dump_stack+0x1c/0x5c [ 58.484831][ T4949] should_fail+0x3bc/0x514 [ 58.485551][ T4949] __should_failslab+0xbc/0x10c [ 58.486378][ T4949] should_failslab+0x10/0x28 [ 58.487094][ T4949] slab_pre_alloc_hook+0x64/0xe8 [ 58.487857][ T4949] kmem_cache_alloc_node_trace+0x9c/0x424 [ 58.488817][ T4949] iolatency_pd_alloc+0xac/0x164 [ 58.489595][ T4949] blkcg_activate_policy+0x204/0xa8c [ 58.490477][ T4949] blk_iolatency_init+0x22c/0x430 [ 58.491373][ T4949] blkcg_init_queue+0x3f0/0x484 [ 58.492215][ T4949] blk_alloc_queue+0x3cc/0x4a0 [ 58.493084][ T4949] __blk_mq_alloc_disk+0x5c/0x154 [ 58.493928][ T4949] loop_add+0x240/0x6e0 [ 58.494564][ T4949] loop_control_ioctl+0x130/0x4e0 [ 58.495382][ T4949] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.496192][ T4949] invoke_syscall+0x98/0x2b0 [ 58.496930][ T4949] el0_svc_common+0x138/0x258 [ 58.497665][ T4949] do_el0_svc+0x58/0x13c [ 58.498366][ T4949] el0_svc+0x78/0x1d0 [ 58.498998][ T4949] el0t_64_sync_handler+0xcc/0xe4 [ 58.499888][ T4949] el0t_64_sync+0x1a0/0x1a4 [ 58.514934][ T4951] FAULT_INJECTION: forcing a failure. [ 58.514934][ T4951] name failslab, interval 1, probability 0, space 0, times 0 [ 58.517278][ T4951] CPU: 1 PID: 4951 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.518815][ T4951] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.520579][ T4951] Call trace: [ 58.521100][ T4951] dump_backtrace+0x0/0x458 [ 58.521831][ T4951] show_stack+0x2c/0x3c [ 58.522546][ T4951] __dump_stack+0x30/0x40 [ 58.523276][ T4951] dump_stack_lvl+0xf4/0x15c [ 58.524120][ T4951] dump_stack+0x1c/0x5c [ 58.524890][ T4951] should_fail+0x3bc/0x514 [ 58.525695][ T4951] __should_failslab+0xbc/0x10c [ 58.526494][ T4951] should_failslab+0x10/0x28 [ 58.527267][ T4951] slab_pre_alloc_hook+0x64/0xe8 [ 58.528103][ T4951] kmem_cache_alloc_trace+0x98/0x3ec [ 58.528964][ T4951] rand_initialize_disk+0x58/0xb8 [ 58.529771][ T4951] __alloc_disk_node+0x2a8/0x450 [ 58.530586][ T4951] __blk_mq_alloc_disk+0xe8/0x154 [ 58.531405][ T4951] loop_add+0x240/0x6e0 [ 58.532086][ T4951] loop_control_ioctl+0x130/0x4e0 [ 58.532945][ T4951] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.533788][ T4951] invoke_syscall+0x98/0x2b0 [ 58.534551][ T4951] el0_svc_common+0x138/0x258 [ 58.535332][ T4951] do_el0_svc+0x58/0x13c [ 58.536087][ T4951] el0_svc+0x78/0x1d0 [ 58.536791][ T4951] el0t_64_sync_handler+0xcc/0xe4 [ 58.537653][ T4951] el0t_64_sync+0x1a0/0x1a4 [ 58.551051][ T4953] FAULT_INJECTION: forcing a failure. [ 58.551051][ T4953] name failslab, interval 1, probability 0, space 0, times 0 [ 58.553180][ T4953] CPU: 1 PID: 4953 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.554675][ T4953] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.556436][ T4953] Call trace: [ 58.556958][ T4953] dump_backtrace+0x0/0x458 [ 58.557682][ T4953] show_stack+0x2c/0x3c [ 58.558354][ T4953] __dump_stack+0x30/0x40 [ 58.559029][ T4953] dump_stack_lvl+0xf4/0x15c [ 58.559832][ T4953] dump_stack+0x1c/0x5c [ 58.560592][ T4953] should_fail+0x3bc/0x514 [ 58.561310][ T4953] __should_failslab+0xbc/0x10c [ 58.562117][ T4953] should_failslab+0x10/0x28 [ 58.562862][ T4953] slab_pre_alloc_hook+0x64/0xe8 [ 58.563640][ T4953] kmem_cache_alloc_node_trace+0x9c/0x424 [ 58.564567][ T4953] iolatency_pd_alloc+0xac/0x164 [ 58.565403][ T4953] blkcg_activate_policy+0x204/0xa8c [ 58.566312][ T4953] blk_iolatency_init+0x22c/0x430 [ 58.567090][ T4953] blkcg_init_queue+0x3f0/0x484 [ 58.567934][ T4953] blk_alloc_queue+0x3cc/0x4a0 [ 58.568685][ T4953] __blk_mq_alloc_disk+0x5c/0x154 [ 58.569522][ T4953] loop_add+0x240/0x6e0 [ 58.570191][ T4953] loop_control_ioctl+0x130/0x4e0 [ 58.571009][ T4953] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.571822][ T4953] invoke_syscall+0x98/0x2b0 [ 58.572599][ T4953] el0_svc_common+0x138/0x258 [ 58.573337][ T4953] do_el0_svc+0x58/0x13c [ 58.574008][ T4953] el0_svc+0x78/0x1d0 [ 58.574590][ T4953] el0t_64_sync_handler+0xcc/0xe4 [ 58.575381][ T4953] el0t_64_sync+0x1a0/0x1a4 [ 58.588979][ T4955] FAULT_INJECTION: forcing a failure. [ 58.588979][ T4955] name failslab, interval 1, probability 0, space 0, times 0 [ 58.591260][ T4955] CPU: 1 PID: 4955 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.592784][ T4955] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.594505][ T4955] Call trace: [ 58.595023][ T4955] dump_backtrace+0x0/0x458 [ 58.595797][ T4955] show_stack+0x2c/0x3c [ 58.596451][ T4955] __dump_stack+0x30/0x40 [ 58.597169][ T4955] dump_stack_lvl+0xf4/0x15c [ 58.597967][ T4955] dump_stack+0x1c/0x5c [ 58.598689][ T4955] should_fail+0x3bc/0x514 [ 58.599405][ T4955] __should_failslab+0xbc/0x10c [ 58.600192][ T4955] should_failslab+0x10/0x28 [ 58.600985][ T4955] slab_pre_alloc_hook+0x64/0xe8 [ 58.601884][ T4955] kmem_cache_alloc_trace+0x98/0x3ec [ 58.602738][ T4955] device_add+0xbc/0xf90 [ 58.603379][ T4955] device_add_disk+0x2d0/0xacc [ 58.604181][ T4955] loop_add+0x510/0x6e0 [ 58.604829][ T4955] loop_control_ioctl+0x130/0x4e0 [ 58.605648][ T4955] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.606452][ T4955] invoke_syscall+0x98/0x2b0 [ 58.607207][ T4955] el0_svc_common+0x138/0x258 [ 58.607947][ T4955] do_el0_svc+0x58/0x13c [ 58.608620][ T4955] el0_svc+0x78/0x1d0 [ 58.609281][ T4955] el0t_64_sync_handler+0xcc/0xe4 [ 58.610133][ T4955] el0t_64_sync+0x1a0/0x1a4 [ 58.619912][ T4957] FAULT_INJECTION: forcing a failure. [ 58.619912][ T4957] name failslab, interval 1, probability 0, space 0, times 0 [ 58.622712][ T4957] CPU: 1 PID: 4957 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.624296][ T4957] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.626031][ T4957] Call trace: [ 58.626556][ T4957] dump_backtrace+0x0/0x458 [ 58.627312][ T4957] show_stack+0x2c/0x3c [ 58.628001][ T4957] __dump_stack+0x30/0x40 [ 58.628712][ T4957] dump_stack_lvl+0xf4/0x15c [ 58.629427][ T4957] dump_stack+0x1c/0x5c [ 58.630106][ T4957] should_fail+0x3bc/0x514 [ 58.630837][ T4957] __should_failslab+0xbc/0x10c [ 58.631621][ T4957] should_failslab+0x10/0x28 [ 58.632398][ T4957] slab_pre_alloc_hook+0x64/0xe8 [ 58.633242][ T4957] __kmalloc_track_caller+0x70/0x358 [ 58.634113][ T4957] kstrdup+0xe4/0x15c [ 58.634762][ T4957] kstrdup_const+0x54/0x6c [ 58.635488][ T4957] kvasprintf_const+0x120/0x2e4 [ 58.636268][ T4957] kobject_set_name_vargs+0xd8/0x1c8 [ 58.637114][ T4957] dev_set_name+0xe8/0x13c [ 58.637863][ T4957] device_add_disk+0x258/0xacc [ 58.638704][ T4957] loop_add+0x510/0x6e0 [ 58.639399][ T4957] loop_control_ioctl+0x130/0x4e0 [ 58.640300][ T4957] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.641193][ T4957] invoke_syscall+0x98/0x2b0 [ 58.641957][ T4957] el0_svc_common+0x138/0x258 [ 58.642730][ T4957] do_el0_svc+0x58/0x13c [ 58.643500][ T4957] el0_svc+0x78/0x1d0 [ 58.644161][ T4957] el0t_64_sync_handler+0xcc/0xe4 [ 58.645071][ T4957] el0t_64_sync+0x1a0/0x1a4 [ 58.654425][ T4959] FAULT_INJECTION: forcing a failure. [ 58.654425][ T4959] name failslab, interval 1, probability 0, space 0, times 0 [ 58.656632][ T4959] CPU: 1 PID: 4959 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.658062][ T4959] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.659821][ T4959] Call trace: [ 58.660284][ T4959] dump_backtrace+0x0/0x458 [ 58.661027][ T4959] show_stack+0x2c/0x3c [ 58.661697][ T4959] __dump_stack+0x30/0x40 [ 58.662365][ T4959] dump_stack_lvl+0xf4/0x15c [ 58.663162][ T4959] dump_stack+0x1c/0x5c [ 58.663841][ T4959] should_fail+0x3bc/0x514 [ 58.664571][ T4959] __should_failslab+0xbc/0x10c [ 58.665389][ T4959] should_failslab+0x10/0x28 [ 58.666171][ T4959] slab_pre_alloc_hook+0x64/0xe8 [ 58.666952][ T4959] kmem_cache_alloc_trace+0x98/0x3ec [ 58.667872][ T4959] rand_initialize_disk+0x58/0xb8 [ 58.668703][ T4959] __alloc_disk_node+0x2a8/0x450 [ 58.669553][ T4959] __blk_mq_alloc_disk+0xe8/0x154 [ 58.670409][ T4959] loop_add+0x240/0x6e0 [ 58.671188][ T4959] loop_control_ioctl+0x130/0x4e0 [ 58.671996][ T4959] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.672779][ T4959] invoke_syscall+0x98/0x2b0 [ 58.673534][ T4959] el0_svc_common+0x138/0x258 [ 58.674311][ T4959] do_el0_svc+0x58/0x13c [ 58.675055][ T4959] el0_svc+0x78/0x1d0 [ 58.675760][ T4959] el0t_64_sync_handler+0xcc/0xe4 [ 58.676646][ T4959] el0t_64_sync+0x1a0/0x1a4 [ 58.689848][ T4961] FAULT_INJECTION: forcing a failure. [ 58.689848][ T4961] name failslab, interval 1, probability 0, space 0, times 0 [ 58.692591][ T4961] CPU: 0 PID: 4961 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.694000][ T4961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.695593][ T4961] Call trace: [ 58.696074][ T4961] dump_backtrace+0x0/0x458 [ 58.696733][ T4961] show_stack+0x2c/0x3c [ 58.697335][ T4961] __dump_stack+0x30/0x40 [ 58.698017][ T4961] dump_stack_lvl+0xf4/0x15c [ 58.698753][ T4961] dump_stack+0x1c/0x5c [ 58.699400][ T4961] should_fail+0x3bc/0x514 [ 58.700093][ T4961] __should_failslab+0xbc/0x10c [ 58.700847][ T4961] should_failslab+0x10/0x28 [ 58.701600][ T4961] slab_pre_alloc_hook+0x64/0xe8 [ 58.702372][ T4961] kmem_cache_alloc_trace+0x98/0x3ec [ 58.703236][ T4961] device_add+0xbc/0xf90 [ 58.703891][ T4961] device_add_disk+0x2d0/0xacc [ 58.704749][ T4961] loop_add+0x510/0x6e0 [ 58.705454][ T4961] loop_control_ioctl+0x130/0x4e0 [ 58.706270][ T4961] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.707069][ T4961] invoke_syscall+0x98/0x2b0 [ 58.707848][ T4961] el0_svc_common+0x138/0x258 [ 58.708615][ T4961] do_el0_svc+0x58/0x13c [ 58.709331][ T4961] el0_svc+0x78/0x1d0 [ 58.710006][ T4961] el0t_64_sync_handler+0xcc/0xe4 [ 58.710783][ T4961] el0t_64_sync+0x1a0/0x1a4 [ 58.720029][ T4963] FAULT_INJECTION: forcing a failure. [ 58.720029][ T4963] name failslab, interval 1, probability 0, space 0, times 0 [ 58.722321][ T4963] CPU: 0 PID: 4963 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.723836][ T4963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.725574][ T4963] Call trace: [ 58.726131][ T4963] dump_backtrace+0x0/0x458 [ 58.726907][ T4963] show_stack+0x2c/0x3c [ 58.727616][ T4963] __dump_stack+0x30/0x40 [ 58.728306][ T4963] dump_stack_lvl+0xf4/0x15c [ 58.729110][ T4963] dump_stack+0x1c/0x5c [ 58.729785][ T4963] should_fail+0x3bc/0x514 [ 58.730469][ T4963] __should_failslab+0xbc/0x10c [ 58.731235][ T4963] should_failslab+0x10/0x28 [ 58.731981][ T4963] slab_pre_alloc_hook+0x64/0xe8 [ 58.732773][ T4963] kmem_cache_alloc+0x94/0x3d4 [ 58.733573][ T4963] __debug_object_init+0x700/0xa0c [ 58.734458][ T4963] debug_object_init+0x20/0x2c [ 58.735265][ T4963] __init_work+0x58/0x68 [ 58.736027][ T4963] blk_mq_init_allocated_queue+0x3a0/0x158c [ 58.737048][ T4963] __blk_mq_alloc_disk+0x88/0x154 [ 58.737844][ T4963] loop_add+0x240/0x6e0 [ 58.738533][ T4963] loop_control_ioctl+0x130/0x4e0 [ 58.739363][ T4963] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.740157][ T4963] invoke_syscall+0x98/0x2b0 [ 58.740901][ T4963] el0_svc_common+0x138/0x258 [ 58.741717][ T4963] do_el0_svc+0x58/0x13c [ 58.742440][ T4963] el0_svc+0x78/0x1d0 [ 58.743152][ T4963] el0t_64_sync_handler+0xcc/0xe4 [ 58.743999][ T4963] el0t_64_sync+0x1a0/0x1a4 [ 58.757141][ T4965] FAULT_INJECTION: forcing a failure. [ 58.757141][ T4965] name failslab, interval 1, probability 0, space 0, times 0 [ 58.759328][ T4965] CPU: 1 PID: 4965 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.760781][ T4965] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.762328][ T4965] Call trace: [ 58.762896][ T4965] dump_backtrace+0x0/0x458 [ 58.763656][ T4965] show_stack+0x2c/0x3c [ 58.764323][ T4965] __dump_stack+0x30/0x40 [ 58.765059][ T4965] dump_stack_lvl+0xf4/0x15c [ 58.765763][ T4965] dump_stack+0x1c/0x5c [ 58.766422][ T4965] should_fail+0x3bc/0x514 [ 58.767219][ T4965] __should_failslab+0xbc/0x10c [ 58.768043][ T4965] should_failslab+0x10/0x28 [ 58.768824][ T4965] slab_pre_alloc_hook+0x64/0xe8 [ 58.769594][ T4965] kmem_cache_alloc+0x94/0x3d4 [ 58.770428][ T4965] __debug_object_init+0x69c/0xa0c [ 58.771299][ T4965] debug_object_init+0x20/0x2c [ 58.772047][ T4965] init_timer_key+0x54/0x410 [ 58.772787][ T4965] blk_throtl_init+0x238/0x3ec [ 58.773589][ T4965] blkcg_init_queue+0x3cc/0x484 [ 58.774470][ T4965] blk_alloc_queue+0x3cc/0x4a0 [ 58.775216][ T4965] __blk_mq_alloc_disk+0x5c/0x154 [ 58.776096][ T4965] loop_add+0x240/0x6e0 [ 58.776815][ T4965] loop_control_ioctl+0x130/0x4e0 [ 58.777672][ T4965] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.778544][ T4965] invoke_syscall+0x98/0x2b0 [ 58.779310][ T4965] el0_svc_common+0x138/0x258 [ 58.780137][ T4965] do_el0_svc+0x58/0x13c [ 58.780826][ T4965] el0_svc+0x78/0x1d0 [ 58.781486][ T4965] el0t_64_sync_handler+0xcc/0xe4 [ 58.782297][ T4965] el0t_64_sync+0x1a0/0x1a4 [ 58.794326][ T4967] FAULT_INJECTION: forcing a failure. [ 58.794326][ T4967] name failslab, interval 1, probability 0, space 0, times 0 [ 58.796571][ T4967] CPU: 1 PID: 4967 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.798084][ T4967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.799725][ T4967] Call trace: [ 58.800267][ T4967] dump_backtrace+0x0/0x458 [ 58.801031][ T4967] show_stack+0x2c/0x3c [ 58.801723][ T4967] __dump_stack+0x30/0x40 [ 58.802421][ T4967] dump_stack_lvl+0xf4/0x15c [ 58.803161][ T4967] dump_stack+0x1c/0x5c [ 58.803876][ T4967] should_fail+0x3bc/0x514 [ 58.804591][ T4967] __should_failslab+0xbc/0x10c [ 58.805379][ T4967] should_failslab+0x10/0x28 [ 58.806136][ T4967] slab_pre_alloc_hook+0x64/0xe8 [ 58.806963][ T4967] kmem_cache_alloc+0x94/0x3d4 [ 58.807775][ T4967] __debug_object_init+0x6b0/0xa0c [ 58.808635][ T4967] debug_object_init+0x20/0x2c [ 58.809444][ T4967] init_timer_key+0x54/0x410 [ 58.810310][ T4967] bdi_alloc+0x114/0x144 [ 58.811136][ T4967] __alloc_disk_node+0x8c/0x450 [ 58.811980][ T4967] __blk_mq_alloc_disk+0xe8/0x154 [ 58.812799][ T4967] loop_add+0x240/0x6e0 [ 58.813492][ T4967] loop_control_ioctl+0x130/0x4e0 [ 58.814340][ T4967] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.815198][ T4967] invoke_syscall+0x98/0x2b0 [ 58.815956][ T4967] el0_svc_common+0x138/0x258 [ 58.816814][ T4967] do_el0_svc+0x58/0x13c [ 58.817567][ T4967] el0_svc+0x78/0x1d0 [ 58.818272][ T4967] el0t_64_sync_handler+0xcc/0xe4 [ 58.819115][ T4967] el0t_64_sync+0x1a0/0x1a4 [ 58.821875][ T4074] Bluetooth: hci0: command 0x0419 tx timeout [ 58.836428][ T4969] FAULT_INJECTION: forcing a failure. [ 58.836428][ T4969] name failslab, interval 1, probability 0, space 0, times 0 [ 58.838622][ T4969] CPU: 0 PID: 4969 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.840197][ T4969] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.841859][ T4969] Call trace: [ 58.842451][ T4969] dump_backtrace+0x0/0x458 [ 58.843199][ T4969] show_stack+0x2c/0x3c [ 58.843926][ T4969] __dump_stack+0x30/0x40 [ 58.844641][ T4969] dump_stack_lvl+0xf4/0x15c [ 58.845401][ T4969] dump_stack+0x1c/0x5c [ 58.846185][ T4969] should_fail+0x3bc/0x514 [ 58.846975][ T4969] __should_failslab+0xbc/0x10c [ 58.847824][ T4969] should_failslab+0x10/0x28 [ 58.848586][ T4969] slab_pre_alloc_hook+0x64/0xe8 [ 58.849387][ T4969] kmem_cache_alloc+0x94/0x3d4 [ 58.850157][ T4969] __debug_object_init+0x750/0xa0c [ 58.851025][ T4969] debug_object_init+0x20/0x2c [ 58.851847][ T4969] init_timer_key+0x54/0x410 [ 58.852606][ T4969] blk_mq_realloc_hw_ctxs+0x514/0x133c [ 58.853544][ T4969] blk_mq_init_allocated_queue+0x36c/0x158c [ 58.854599][ T4969] __blk_mq_alloc_disk+0x88/0x154 [ 58.855454][ T4969] loop_add+0x240/0x6e0 [ 58.856209][ T4969] loop_control_ioctl+0x130/0x4e0 [ 58.857065][ T4969] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.857970][ T4969] invoke_syscall+0x98/0x2b0 [ 58.858779][ T4969] el0_svc_common+0x138/0x258 [ 58.859669][ T4969] do_el0_svc+0x58/0x13c [ 58.860386][ T4969] el0_svc+0x78/0x1d0 [ 58.860999][ T4969] el0t_64_sync_handler+0xcc/0xe4 [ 58.861764][ T4969] el0t_64_sync+0x1a0/0x1a4 [ 58.876871][ T4971] FAULT_INJECTION: forcing a failure. [ 58.876871][ T4971] name failslab, interval 1, probability 0, space 0, times 0 [ 58.879028][ T4971] CPU: 1 PID: 4971 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.880542][ T4971] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.882232][ T4971] Call trace: [ 58.882797][ T4971] dump_backtrace+0x0/0x458 [ 58.883574][ T4971] show_stack+0x2c/0x3c [ 58.884369][ T4971] __dump_stack+0x30/0x40 [ 58.885078][ T4971] dump_stack_lvl+0xf4/0x15c [ 58.885800][ T4971] dump_stack+0x1c/0x5c [ 58.886524][ T4971] should_fail+0x3bc/0x514 [ 58.887303][ T4971] __should_failslab+0xbc/0x10c [ 58.888086][ T4971] should_failslab+0x10/0x28 [ 58.888851][ T4971] slab_pre_alloc_hook+0x64/0xe8 [ 58.889672][ T4971] kmem_cache_alloc_trace+0x98/0x3ec [ 58.890622][ T4971] rand_initialize_disk+0x58/0xb8 [ 58.891491][ T4971] __alloc_disk_node+0x2a8/0x450 [ 58.892319][ T4971] __blk_mq_alloc_disk+0xe8/0x154 [ 58.893200][ T4971] loop_add+0x240/0x6e0 [ 58.893938][ T4971] loop_control_ioctl+0x130/0x4e0 [ 58.894746][ T4971] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.895575][ T4971] invoke_syscall+0x98/0x2b0 [ 58.896384][ T4971] el0_svc_common+0x138/0x258 [ 58.897200][ T4971] do_el0_svc+0x58/0x13c [ 58.897917][ T4971] el0_svc+0x78/0x1d0 [ 58.898543][ T4971] el0t_64_sync_handler+0xcc/0xe4 [ 58.899378][ T4971] el0t_64_sync+0x1a0/0x1a4 [ 58.913945][ T4973] FAULT_INJECTION: forcing a failure. [ 58.913945][ T4973] name failslab, interval 1, probability 0, space 0, times 0 [ 58.916201][ T4973] CPU: 0 PID: 4973 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.917731][ T4973] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.919441][ T4973] Call trace: [ 58.919978][ T4973] dump_backtrace+0x0/0x458 [ 58.920733][ T4973] show_stack+0x2c/0x3c [ 58.921451][ T4973] __dump_stack+0x30/0x40 [ 58.922188][ T4973] dump_stack_lvl+0xf4/0x15c [ 58.922959][ T4973] dump_stack+0x1c/0x5c [ 58.923667][ T4973] should_fail+0x3bc/0x514 [ 58.924393][ T4973] __should_failslab+0xbc/0x10c [ 58.925258][ T4973] should_failslab+0x10/0x28 [ 58.925991][ T4973] slab_pre_alloc_hook+0x64/0xe8 [ 58.926877][ T4973] __kmalloc_track_caller+0x70/0x358 [ 58.927834][ T4973] kstrdup+0xe4/0x15c [ 58.928507][ T4973] kstrdup_const+0x54/0x6c [ 58.929225][ T4973] kvasprintf_const+0x120/0x2e4 [ 58.930113][ T4973] kobject_set_name_vargs+0xd8/0x1c8 [ 58.931055][ T4973] dev_set_name+0xe8/0x13c [ 58.931884][ T4973] device_add_disk+0x258/0xacc [ 58.932718][ T4973] loop_add+0x510/0x6e0 [ 58.933458][ T4973] loop_control_ioctl+0x130/0x4e0 [ 58.934318][ T4973] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.935205][ T4973] invoke_syscall+0x98/0x2b0 [ 58.935975][ T4973] el0_svc_common+0x138/0x258 [ 58.936765][ T4973] do_el0_svc+0x58/0x13c [ 58.937513][ T4973] el0_svc+0x78/0x1d0 [ 58.938192][ T4973] el0t_64_sync_handler+0xcc/0xe4 [ 58.939020][ T4973] el0t_64_sync+0x1a0/0x1a4 [ 58.950792][ T4975] FAULT_INJECTION: forcing a failure. [ 58.950792][ T4975] name failslab, interval 1, probability 0, space 0, times 0 [ 58.953734][ T4975] CPU: 0 PID: 4975 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.955194][ T4975] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.956956][ T4975] Call trace: [ 58.957496][ T4975] dump_backtrace+0x0/0x458 [ 58.958247][ T4975] show_stack+0x2c/0x3c [ 58.958940][ T4975] __dump_stack+0x30/0x40 [ 58.959686][ T4975] dump_stack_lvl+0xf4/0x15c [ 58.960461][ T4975] dump_stack+0x1c/0x5c [ 58.961134][ T4975] should_fail+0x3bc/0x514 [ 58.961944][ T4975] __should_failslab+0xbc/0x10c [ 58.962782][ T4975] should_failslab+0x10/0x28 [ 58.963617][ T4975] slab_pre_alloc_hook+0x64/0xe8 [ 58.964466][ T4975] kmem_cache_alloc_trace+0x98/0x3ec [ 58.965350][ T4975] rand_initialize_disk+0x58/0xb8 [ 58.966192][ T4975] __alloc_disk_node+0x2a8/0x450 [ 58.967091][ T4975] __blk_mq_alloc_disk+0xe8/0x154 [ 58.967926][ T4975] loop_add+0x240/0x6e0 [ 58.968619][ T4975] loop_control_ioctl+0x130/0x4e0 [ 58.969492][ T4975] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.970364][ T4975] invoke_syscall+0x98/0x2b0 [ 58.971187][ T4975] el0_svc_common+0x138/0x258 [ 58.971983][ T4975] do_el0_svc+0x58/0x13c [ 58.972697][ T4975] el0_svc+0x78/0x1d0 [ 58.973367][ T4975] el0t_64_sync_handler+0xcc/0xe4 [ 58.974282][ T4975] el0t_64_sync+0x1a0/0x1a4 [ 58.993759][ T4977] FAULT_INJECTION: forcing a failure. [ 58.993759][ T4977] name failslab, interval 1, probability 0, space 0, times 0 [ 58.995954][ T4977] CPU: 0 PID: 4977 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.997518][ T4977] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.999230][ T4977] Call trace: [ 58.999792][ T4977] dump_backtrace+0x0/0x458 [ 59.000543][ T4977] show_stack+0x2c/0x3c [ 59.001249][ T4977] __dump_stack+0x30/0x40 [ 59.002006][ T4977] dump_stack_lvl+0xf4/0x15c [ 59.002844][ T4977] dump_stack+0x1c/0x5c [ 59.003605][ T4977] should_fail+0x3bc/0x514 [ 59.004322][ T4977] __should_failslab+0xbc/0x10c [ 59.005118][ T4977] should_failslab+0x10/0x28 [ 59.005948][ T4977] slab_pre_alloc_hook+0x64/0xe8 [ 59.006758][ T4977] kmem_cache_alloc_trace+0x98/0x3ec [ 59.007687][ T4977] device_add+0xbc/0xf90 [ 59.008409][ T4977] device_add_disk+0x2d0/0xacc [ 59.009181][ T4977] loop_add+0x510/0x6e0 [ 59.009901][ T4977] loop_control_ioctl+0x130/0x4e0 [ 59.010827][ T4977] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.011668][ T4977] invoke_syscall+0x98/0x2b0 [ 59.012436][ T4977] el0_svc_common+0x138/0x258 [ 59.013281][ T4977] do_el0_svc+0x58/0x13c [ 59.014017][ T4977] el0_svc+0x78/0x1d0 [ 59.014666][ T4977] el0t_64_sync_handler+0xcc/0xe4 [ 59.015575][ T4977] el0t_64_sync+0x1a0/0x1a4 [ 59.026483][ T4979] FAULT_INJECTION: forcing a failure. [ 59.026483][ T4979] name failslab, interval 1, probability 0, space 0, times 0 [ 59.028886][ T4979] CPU: 1 PID: 4979 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.030437][ T4979] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.032388][ T4979] Call trace: [ 59.032943][ T4979] dump_backtrace+0x0/0x458 [ 59.033700][ T4979] show_stack+0x2c/0x3c [ 59.034399][ T4979] __dump_stack+0x30/0x40 [ 59.035193][ T4979] dump_stack_lvl+0xf4/0x15c [ 59.036001][ T4979] dump_stack+0x1c/0x5c [ 59.036749][ T4979] should_fail+0x3bc/0x514 [ 59.037477][ T4979] __should_failslab+0xbc/0x10c [ 59.038311][ T4979] should_failslab+0x10/0x28 [ 59.039043][ T4979] slab_pre_alloc_hook+0x64/0xe8 [ 59.039872][ T4979] kmem_cache_alloc_trace+0x98/0x3ec [ 59.040794][ T4979] blk_iolatency_init+0x64/0x430 [ 59.041615][ T4979] blkcg_init_queue+0x3f0/0x484 [ 59.042385][ T4979] blk_alloc_queue+0x3cc/0x4a0 [ 59.043187][ T4979] __blk_mq_alloc_disk+0x5c/0x154 [ 59.044073][ T4979] loop_add+0x240/0x6e0 [ 59.044771][ T4979] loop_control_ioctl+0x130/0x4e0 [ 59.045609][ T4979] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.046494][ T4979] invoke_syscall+0x98/0x2b0 [ 59.047335][ T4979] el0_svc_common+0x138/0x258 [ 59.048175][ T4979] do_el0_svc+0x58/0x13c [ 59.048889][ T4979] el0_svc+0x78/0x1d0 [ 59.049551][ T4979] el0t_64_sync_handler+0xcc/0xe4 [ 59.050399][ T4979] el0t_64_sync+0x1a0/0x1a4 [ 59.060766][ T4981] FAULT_INJECTION: forcing a failure. [ 59.060766][ T4981] name failslab, interval 1, probability 0, space 0, times 0 [ 59.062908][ T4981] CPU: 1 PID: 4981 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.064343][ T4981] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.066006][ T4981] Call trace: [ 59.066548][ T4981] dump_backtrace+0x0/0x458 [ 59.067315][ T4981] show_stack+0x2c/0x3c [ 59.068014][ T4981] __dump_stack+0x30/0x40 [ 59.068747][ T4981] dump_stack_lvl+0xf4/0x15c [ 59.069504][ T4981] dump_stack+0x1c/0x5c [ 59.070164][ T4981] should_fail+0x3bc/0x514 [ 59.070889][ T4981] __should_failslab+0xbc/0x10c [ 59.071655][ T4981] should_failslab+0x10/0x28 [ 59.072389][ T4981] slab_pre_alloc_hook+0x64/0xe8 [ 59.073167][ T4981] kmem_cache_alloc_trace+0x98/0x3ec [ 59.074066][ T4981] device_add+0xbc/0xf90 [ 59.074779][ T4981] device_add_disk+0x2d0/0xacc [ 59.075591][ T4981] loop_add+0x510/0x6e0 [ 59.076328][ T4981] loop_control_ioctl+0x130/0x4e0 [ 59.077209][ T4981] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.077982][ T4981] invoke_syscall+0x98/0x2b0 [ 59.078747][ T4981] el0_svc_common+0x138/0x258 [ 59.079568][ T4981] do_el0_svc+0x58/0x13c [ 59.080239][ T4981] el0_svc+0x78/0x1d0 [ 59.080842][ T4981] el0t_64_sync_handler+0xcc/0xe4 [ 59.081652][ T4981] el0t_64_sync+0x1a0/0x1a4 [ 59.096888][ T4983] FAULT_INJECTION: forcing a failure. [ 59.096888][ T4983] name failslab, interval 1, probability 0, space 0, times 0 [ 59.099006][ T4983] CPU: 0 PID: 4983 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.100447][ T4983] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.102030][ T4983] Call trace: [ 59.102554][ T4983] dump_backtrace+0x0/0x458 [ 59.103311][ T4983] show_stack+0x2c/0x3c [ 59.104035][ T4983] __dump_stack+0x30/0x40 [ 59.104810][ T4983] dump_stack_lvl+0xf4/0x15c [ 59.105590][ T4983] dump_stack+0x1c/0x5c [ 59.106303][ T4983] should_fail+0x3bc/0x514 [ 59.107048][ T4983] __should_failslab+0xbc/0x10c [ 59.107925][ T4983] should_failslab+0x10/0x28 [ 59.108690][ T4983] slab_pre_alloc_hook+0x64/0xe8 [ 59.109528][ T4983] __kmalloc_track_caller+0x70/0x358 [ 59.110477][ T4983] kstrdup+0xe4/0x15c [ 59.111166][ T4983] kstrdup_const+0x54/0x6c [ 59.111919][ T4983] kvasprintf_const+0x120/0x2e4 [ 59.112746][ T4983] kobject_set_name_vargs+0xd8/0x1c8 [ 59.113618][ T4983] dev_set_name+0xe8/0x13c [ 59.114356][ T4983] device_add_disk+0x258/0xacc [ 59.115162][ T4983] loop_add+0x510/0x6e0 [ 59.115929][ T4983] loop_control_ioctl+0x130/0x4e0 [ 59.116796][ T4983] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.117651][ T4983] invoke_syscall+0x98/0x2b0 [ 59.118390][ T4983] el0_svc_common+0x138/0x258 [ 59.119234][ T4983] do_el0_svc+0x58/0x13c [ 59.119955][ T4983] el0_svc+0x78/0x1d0 [ 59.120631][ T4983] el0t_64_sync_handler+0xcc/0xe4 [ 59.121505][ T4983] el0t_64_sync+0x1a0/0x1a4 [ 59.132806][ T4985] FAULT_INJECTION: forcing a failure. [ 59.132806][ T4985] name failslab, interval 1, probability 0, space 0, times 0 [ 59.135099][ T4985] CPU: 1 PID: 4985 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.136614][ T4985] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.138351][ T4985] Call trace: [ 59.138897][ T4985] dump_backtrace+0x0/0x458 [ 59.139628][ T4985] show_stack+0x2c/0x3c [ 59.140357][ T4985] __dump_stack+0x30/0x40 [ 59.141010][ T4985] dump_stack_lvl+0xf4/0x15c [ 59.141728][ T4985] dump_stack+0x1c/0x5c [ 59.142431][ T4985] should_fail+0x3bc/0x514 [ 59.143185][ T4985] __should_failslab+0xbc/0x10c [ 59.144014][ T4985] should_failslab+0x10/0x28 [ 59.144757][ T4985] slab_pre_alloc_hook+0x64/0xe8 [ 59.145564][ T4985] __kmalloc_node+0xb8/0x508 [ 59.146368][ T4985] memcg_alloc_page_obj_cgroups+0x80/0x170 [ 59.147399][ T4985] new_slab+0x114/0x544 [ 59.148222][ T4985] ___slab_alloc+0x6b4/0xd8c [ 59.148968][ T4985] __slab_alloc+0x68/0xc0 [ 59.149723][ T4985] kmem_cache_alloc+0x2a4/0x3d4 [ 59.150507][ T4985] bdev_alloc_inode+0x24/0x60 [ 59.151251][ T4985] new_inode_pseudo+0x68/0x1fc [ 59.152062][ T4985] new_inode+0x38/0x174 [ 59.152797][ T4985] bdev_alloc+0x30/0x1f8 [ 59.153504][ T4985] __alloc_disk_node+0xbc/0x450 [ 59.154364][ T4985] __blk_mq_alloc_disk+0xe8/0x154 [ 59.155247][ T4985] loop_add+0x240/0x6e0 [ 59.155905][ T4985] loop_control_ioctl+0x130/0x4e0 [ 59.156695][ T4985] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.157441][ T4985] invoke_syscall+0x98/0x2b0 [ 59.158152][ T4985] el0_svc_common+0x138/0x258 [ 59.158970][ T4985] do_el0_svc+0x58/0x13c [ 59.159539][ T4985] el0_svc+0x78/0x1d0 [ 59.160227][ T4985] el0t_64_sync_handler+0xcc/0xe4 [ 59.161058][ T4985] el0t_64_sync+0x1a0/0x1a4 [ 59.172809][ T4987] FAULT_INJECTION: forcing a failure. [ 59.172809][ T4987] name failslab, interval 1, probability 0, space 0, times 0 [ 59.175115][ T4987] CPU: 1 PID: 4987 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.176723][ T4987] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.178370][ T4987] Call trace: [ 59.179004][ T4987] dump_backtrace+0x0/0x458 [ 59.179689][ T4987] show_stack+0x2c/0x3c [ 59.180365][ T4987] __dump_stack+0x30/0x40 [ 59.181085][ T4987] dump_stack_lvl+0xf4/0x15c [ 59.181814][ T4987] dump_stack+0x1c/0x5c [ 59.182522][ T4987] should_fail+0x3bc/0x514 [ 59.183304][ T4987] __should_failslab+0xbc/0x10c [ 59.184083][ T4987] should_failslab+0x10/0x28 [ 59.184909][ T4987] slab_pre_alloc_hook+0x64/0xe8 [ 59.185876][ T4987] __kmalloc_track_caller+0x70/0x358 [ 59.186818][ T4987] kstrdup+0xe4/0x15c [ 59.187483][ T4987] kstrdup_const+0x54/0x6c [ 59.188265][ T4987] kvasprintf_const+0x120/0x2e4 [ 59.189127][ T4987] kobject_set_name_vargs+0xd8/0x1c8 [ 59.190011][ T4987] dev_set_name+0xe8/0x13c [ 59.190821][ T4987] device_add_disk+0x258/0xacc [ 59.191665][ T4987] loop_add+0x510/0x6e0 [ 59.192357][ T4987] loop_control_ioctl+0x130/0x4e0 [ 59.193184][ T4987] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.194053][ T4987] invoke_syscall+0x98/0x2b0 [ 59.194782][ T4987] el0_svc_common+0x138/0x258 [ 59.195660][ T4987] do_el0_svc+0x58/0x13c [ 59.196390][ T4987] el0_svc+0x78/0x1d0 [ 59.197085][ T4987] el0t_64_sync_handler+0xcc/0xe4 [ 59.197949][ T4987] el0t_64_sync+0x1a0/0x1a4 [ 59.208893][ T4989] FAULT_INJECTION: forcing a failure. [ 59.208893][ T4989] name failslab, interval 1, probability 0, space 0, times 0 [ 59.211141][ T4989] CPU: 1 PID: 4989 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.212643][ T4989] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.214274][ T4989] Call trace: [ 59.214820][ T4989] dump_backtrace+0x0/0x458 [ 59.215548][ T4989] show_stack+0x2c/0x3c [ 59.216253][ T4989] __dump_stack+0x30/0x40 [ 59.216982][ T4989] dump_stack_lvl+0xf4/0x15c [ 59.217822][ T4989] dump_stack+0x1c/0x5c [ 59.218507][ T4989] should_fail+0x3bc/0x514 [ 59.219211][ T4989] __should_failslab+0xbc/0x10c [ 59.219989][ T4989] should_failslab+0x10/0x28 [ 59.220723][ T4989] slab_pre_alloc_hook+0x64/0xe8 [ 59.221597][ T4989] kmem_cache_alloc_trace+0x98/0x3ec [ 59.222605][ T4989] device_add+0xbc/0xf90 [ 59.223363][ T4989] device_add_disk+0x2d0/0xacc [ 59.224233][ T4989] loop_add+0x510/0x6e0 [ 59.224940][ T4989] loop_control_ioctl+0x130/0x4e0 [ 59.225814][ T4989] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.226591][ T4989] invoke_syscall+0x98/0x2b0 [ 59.227379][ T4989] el0_svc_common+0x138/0x258 [ 59.228189][ T4989] do_el0_svc+0x58/0x13c [ 59.228870][ T4989] el0_svc+0x78/0x1d0 [ 59.229517][ T4989] el0t_64_sync_handler+0xcc/0xe4 [ 59.230410][ T4989] el0t_64_sync+0x1a0/0x1a4 [ 59.239722][ T4991] FAULT_INJECTION: forcing a failure. [ 59.239722][ T4991] name failslab, interval 1, probability 0, space 0, times 0 [ 59.242137][ T4991] CPU: 1 PID: 4991 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.243684][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.245483][ T4991] Call trace: [ 59.246048][ T4991] dump_backtrace+0x0/0x458 [ 59.246857][ T4991] show_stack+0x2c/0x3c [ 59.247562][ T4991] __dump_stack+0x30/0x40 [ 59.248316][ T4991] dump_stack_lvl+0xf4/0x15c [ 59.249023][ T4991] dump_stack+0x1c/0x5c [ 59.249772][ T4991] should_fail+0x3bc/0x514 [ 59.250523][ T4991] __should_failslab+0xbc/0x10c [ 59.251346][ T4991] should_failslab+0x10/0x28 [ 59.252093][ T4991] slab_pre_alloc_hook+0x64/0xe8 [ 59.252895][ T4991] kmem_cache_alloc+0x94/0x3d4 [ 59.253648][ T4991] __debug_object_init+0x780/0xa0c [ 59.254485][ T4991] debug_object_init+0x20/0x2c [ 59.255336][ T4991] init_timer_key+0x54/0x410 [ 59.256095][ T4991] blk_stat_alloc_callback+0x164/0x1dc [ 59.256954][ T4991] blk_mq_init_allocated_queue+0x8c/0x158c [ 59.257898][ T4991] __blk_mq_alloc_disk+0x88/0x154 [ 59.258884][ T4991] loop_add+0x240/0x6e0 [ 59.259627][ T4991] loop_control_ioctl+0x130/0x4e0 [ 59.260481][ T4991] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.261343][ T4991] invoke_syscall+0x98/0x2b0 [ 59.262120][ T4991] el0_svc_common+0x138/0x258 [ 59.262895][ T4991] do_el0_svc+0x58/0x13c [ 59.263578][ T4991] el0_svc+0x78/0x1d0 [ 59.264236][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 59.265051][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 59.278185][ T4993] FAULT_INJECTION: forcing a failure. [ 59.278185][ T4993] name failslab, interval 1, probability 0, space 0, times 0 [ 59.280344][ T4993] CPU: 0 PID: 4993 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.281898][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.283636][ T4993] Call trace: [ 59.284193][ T4993] dump_backtrace+0x0/0x458 [ 59.285012][ T4993] show_stack+0x2c/0x3c [ 59.285718][ T4993] __dump_stack+0x30/0x40 [ 59.286439][ T4993] dump_stack_lvl+0xf4/0x15c [ 59.287224][ T4993] dump_stack+0x1c/0x5c [ 59.287923][ T4993] should_fail+0x3bc/0x514 [ 59.288645][ T4993] __should_failslab+0xbc/0x10c [ 59.289461][ T4993] should_failslab+0x10/0x28 [ 59.290227][ T4993] slab_pre_alloc_hook+0x64/0xe8 [ 59.291076][ T4993] kmem_cache_alloc_node_trace+0x9c/0x424 [ 59.292003][ T4993] iolatency_pd_alloc+0xac/0x164 [ 59.292826][ T4993] blkcg_activate_policy+0x204/0xa8c [ 59.293705][ T4993] blk_iolatency_init+0x22c/0x430 [ 59.294535][ T4993] blkcg_init_queue+0x3f0/0x484 [ 59.295369][ T4993] blk_alloc_queue+0x3cc/0x4a0 [ 59.296202][ T4993] __blk_mq_alloc_disk+0x5c/0x154 [ 59.297052][ T4993] loop_add+0x240/0x6e0 [ 59.297742][ T4993] loop_control_ioctl+0x130/0x4e0 [ 59.298610][ T4993] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.299447][ T4993] invoke_syscall+0x98/0x2b0 [ 59.300220][ T4993] el0_svc_common+0x138/0x258 [ 59.301045][ T4993] do_el0_svc+0x58/0x13c [ 59.301799][ T4993] el0_svc+0x78/0x1d0 [ 59.302448][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 59.303310][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 59.315789][ T4995] FAULT_INJECTION: forcing a failure. [ 59.315789][ T4995] name failslab, interval 1, probability 0, space 0, times 0 [ 59.318215][ T4995] CPU: 0 PID: 4995 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.319775][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.321464][ T4995] Call trace: [ 59.322032][ T4995] dump_backtrace+0x0/0x458 [ 59.322802][ T4995] show_stack+0x2c/0x3c [ 59.323513][ T4995] __dump_stack+0x30/0x40 [ 59.324224][ T4995] dump_stack_lvl+0xf4/0x15c [ 59.324976][ T4995] dump_stack+0x1c/0x5c [ 59.325749][ T4995] should_fail+0x3bc/0x514 [ 59.326528][ T4995] __should_failslab+0xbc/0x10c [ 59.327422][ T4995] should_failslab+0x10/0x28 [ 59.328235][ T4995] slab_pre_alloc_hook+0x64/0xe8 [ 59.329080][ T4995] kmem_cache_alloc_trace+0x98/0x3ec [ 59.329946][ T4995] device_add+0xbc/0xf90 [ 59.330650][ T4995] device_add_disk+0x2d0/0xacc [ 59.331447][ T4995] loop_add+0x510/0x6e0 [ 59.332136][ T4995] loop_control_ioctl+0x130/0x4e0 [ 59.332941][ T4995] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.333755][ T4995] invoke_syscall+0x98/0x2b0 [ 59.334495][ T4995] el0_svc_common+0x138/0x258 [ 59.335313][ T4995] do_el0_svc+0x58/0x13c [ 59.336094][ T4995] el0_svc+0x78/0x1d0 [ 59.336763][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 59.337617][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 59.347939][ T4997] FAULT_INJECTION: forcing a failure. [ 59.347939][ T4997] name failslab, interval 1, probability 0, space 0, times 0 [ 59.349945][ T4997] CPU: 0 PID: 4997 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.351465][ T4997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.353250][ T4997] Call trace: [ 59.353797][ T4997] dump_backtrace+0x0/0x458 [ 59.354650][ T4997] show_stack+0x2c/0x3c [ 59.355307][ T4997] __dump_stack+0x30/0x40 [ 59.356040][ T4997] dump_stack_lvl+0xf4/0x15c [ 59.356840][ T4997] dump_stack+0x1c/0x5c [ 59.357515][ T4997] should_fail+0x3bc/0x514 [ 59.358263][ T4997] __should_failslab+0xbc/0x10c [ 59.359088][ T4997] should_failslab+0x10/0x28 [ 59.359825][ T4997] slab_pre_alloc_hook+0x64/0xe8 [ 59.360668][ T4997] __kmalloc_track_caller+0x70/0x358 [ 59.361496][ T4997] kstrdup+0xe4/0x15c [ 59.362157][ T4997] kstrdup_const+0x54/0x6c [ 59.362908][ T4997] kvasprintf_const+0x120/0x2e4 [ 59.363692][ T4997] kobject_set_name_vargs+0xd8/0x1c8 [ 59.364579][ T4997] dev_set_name+0xe8/0x13c [ 59.365335][ T4997] device_add_disk+0x258/0xacc [ 59.366164][ T4997] loop_add+0x510/0x6e0 [ 59.366865][ T4997] loop_control_ioctl+0x130/0x4e0 [ 59.367722][ T4997] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.368546][ T4997] invoke_syscall+0x98/0x2b0 [ 59.369294][ T4997] el0_svc_common+0x138/0x258 [ 59.370032][ T4997] do_el0_svc+0x58/0x13c [ 59.370762][ T4997] el0_svc+0x78/0x1d0 [ 59.371461][ T4997] el0t_64_sync_handler+0xcc/0xe4 [ 59.372304][ T4997] el0t_64_sync+0x1a0/0x1a4 [ 59.383560][ T4999] FAULT_INJECTION: forcing a failure. [ 59.383560][ T4999] name failslab, interval 1, probability 0, space 0, times 0 [ 59.385789][ T4999] CPU: 1 PID: 4999 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.387245][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.388874][ T4999] Call trace: [ 59.389417][ T4999] dump_backtrace+0x0/0x458 [ 59.390174][ T4999] show_stack+0x2c/0x3c [ 59.390921][ T4999] __dump_stack+0x30/0x40 [ 59.391652][ T4999] dump_stack_lvl+0xf4/0x15c [ 59.392443][ T4999] dump_stack+0x1c/0x5c [ 59.393121][ T4999] should_fail+0x3bc/0x514 [ 59.393913][ T4999] __should_failslab+0xbc/0x10c [ 59.394760][ T4999] should_failslab+0x10/0x28 [ 59.395591][ T4999] slab_pre_alloc_hook+0x64/0xe8 [ 59.396476][ T4999] kmem_cache_alloc_trace+0x98/0x3ec [ 59.397412][ T4999] blk_iolatency_init+0x64/0x430 [ 59.398229][ T4999] blkcg_init_queue+0x3f0/0x484 [ 59.399037][ T4999] blk_alloc_queue+0x3cc/0x4a0 [ 59.399876][ T4999] __blk_mq_alloc_disk+0x5c/0x154 [ 59.400720][ T4999] loop_add+0x240/0x6e0 [ 59.401483][ T4999] loop_control_ioctl+0x130/0x4e0 [ 59.402301][ T4999] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.403163][ T4999] invoke_syscall+0x98/0x2b0 [ 59.403900][ T4999] el0_svc_common+0x138/0x258 [ 59.404675][ T4999] do_el0_svc+0x58/0x13c [ 59.405398][ T4999] el0_svc+0x78/0x1d0 [ 59.406042][ T4999] el0t_64_sync_handler+0xcc/0xe4 [ 59.406904][ T4999] el0t_64_sync+0x1a0/0x1a4 [ 59.418485][ T5001] FAULT_INJECTION: forcing a failure. [ 59.418485][ T5001] name failslab, interval 1, probability 0, space 0, times 0 [ 59.421084][ T5001] CPU: 1 PID: 5001 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.422570][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.424294][ T5001] Call trace: [ 59.424816][ T5001] dump_backtrace+0x0/0x458 [ 59.425596][ T5001] show_stack+0x2c/0x3c [ 59.426272][ T5001] __dump_stack+0x30/0x40 [ 59.426999][ T5001] dump_stack_lvl+0xf4/0x15c [ 59.427741][ T5001] dump_stack+0x1c/0x5c [ 59.428375][ T5001] should_fail+0x3bc/0x514 [ 59.429101][ T5001] __should_failslab+0xbc/0x10c [ 59.429889][ T5001] should_failslab+0x10/0x28 [ 59.430602][ T5001] slab_pre_alloc_hook+0x64/0xe8 [ 59.431407][ T5001] kmem_cache_alloc_trace+0x98/0x3ec [ 59.432337][ T5001] device_add+0xbc/0xf90 [ 59.433040][ T5001] device_add_disk+0x2d0/0xacc [ 59.433890][ T5001] loop_add+0x510/0x6e0 [ 59.434586][ T5001] loop_control_ioctl+0x130/0x4e0 [ 59.435383][ T5001] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.436228][ T5001] invoke_syscall+0x98/0x2b0 [ 59.436996][ T5001] el0_svc_common+0x138/0x258 [ 59.437782][ T5001] do_el0_svc+0x58/0x13c [ 59.438490][ T5001] el0_svc+0x78/0x1d0 [ 59.439135][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 59.439969][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 59.449990][ T5003] FAULT_INJECTION: forcing a failure. [ 59.449990][ T5003] name failslab, interval 1, probability 0, space 0, times 0 [ 59.452422][ T5003] CPU: 1 PID: 5003 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.453862][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.455649][ T5003] Call trace: [ 59.456192][ T5003] dump_backtrace+0x0/0x458 [ 59.456959][ T5003] show_stack+0x2c/0x3c [ 59.457659][ T5003] __dump_stack+0x30/0x40 [ 59.458422][ T5003] dump_stack_lvl+0xf4/0x15c [ 59.459250][ T5003] dump_stack+0x1c/0x5c [ 59.459931][ T5003] should_fail+0x3bc/0x514 [ 59.460654][ T5003] __should_failslab+0xbc/0x10c [ 59.461437][ T5003] should_failslab+0x10/0x28 [ 59.462197][ T5003] slab_pre_alloc_hook+0x64/0xe8 [ 59.463038][ T5003] __kmalloc_track_caller+0x70/0x358 [ 59.463952][ T5003] kstrdup+0xe4/0x15c [ 59.464591][ T5003] kstrdup_const+0x54/0x6c [ 59.465282][ T5003] kvasprintf_const+0x120/0x2e4 [ 59.466096][ T5003] kobject_set_name_vargs+0xd8/0x1c8 [ 59.466961][ T5003] dev_set_name+0xe8/0x13c [ 59.467735][ T5003] device_add_disk+0x258/0xacc [ 59.468560][ T5003] loop_add+0x510/0x6e0 [ 59.469288][ T5003] loop_control_ioctl+0x130/0x4e0 [ 59.470111][ T5003] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.470901][ T5003] invoke_syscall+0x98/0x2b0 [ 59.471657][ T5003] el0_svc_common+0x138/0x258 [ 59.472477][ T5003] do_el0_svc+0x58/0x13c [ 59.473155][ T5003] el0_svc+0x78/0x1d0 [ 59.473834][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 59.474648][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 59.484156][ T5005] FAULT_INJECTION: forcing a failure. [ 59.484156][ T5005] name failslab, interval 1, probability 0, space 0, times 0 [ 59.486403][ T5005] CPU: 0 PID: 5005 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.487982][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.489664][ T5005] Call trace: [ 59.490244][ T5005] dump_backtrace+0x0/0x458 [ 59.490942][ T5005] show_stack+0x2c/0x3c [ 59.491585][ T5005] __dump_stack+0x30/0x40 [ 59.492281][ T5005] dump_stack_lvl+0xf4/0x15c [ 59.493072][ T5005] dump_stack+0x1c/0x5c [ 59.493714][ T5005] should_fail+0x3bc/0x514 [ 59.494473][ T5005] __should_failslab+0xbc/0x10c [ 59.495259][ T5005] should_failslab+0x10/0x28 [ 59.496051][ T5005] slab_pre_alloc_hook+0x64/0xe8 [ 59.496919][ T5005] kmem_cache_alloc_node_trace+0x9c/0x424 [ 59.497854][ T5005] iolatency_pd_alloc+0xac/0x164 [ 59.498678][ T5005] blkcg_activate_policy+0x204/0xa8c [ 59.499539][ T5005] blk_iolatency_init+0x22c/0x430 [ 59.500408][ T5005] blkcg_init_queue+0x3f0/0x484 [ 59.501180][ T5005] blk_alloc_queue+0x3cc/0x4a0 [ 59.501983][ T5005] __blk_mq_alloc_disk+0x5c/0x154 [ 59.502839][ T5005] loop_add+0x240/0x6e0 [ 59.503527][ T5005] loop_control_ioctl+0x130/0x4e0 [ 59.504315][ T5005] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.505115][ T5005] invoke_syscall+0x98/0x2b0 [ 59.505874][ T5005] el0_svc_common+0x138/0x258 [ 59.506632][ T5005] do_el0_svc+0x58/0x13c [ 59.507404][ T5005] el0_svc+0x78/0x1d0 [ 59.508055][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 59.508855][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 59.524268][ T5007] FAULT_INJECTION: forcing a failure. [ 59.524268][ T5007] name failslab, interval 1, probability 0, space 0, times 0 [ 59.526717][ T5007] CPU: 0 PID: 5007 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.528203][ T5007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.530025][ T5007] Call trace: [ 59.530552][ T5007] dump_backtrace+0x0/0x458 [ 59.531324][ T5007] show_stack+0x2c/0x3c [ 59.532066][ T5007] __dump_stack+0x30/0x40 [ 59.532796][ T5007] dump_stack_lvl+0xf4/0x15c [ 59.533530][ T5007] dump_stack+0x1c/0x5c [ 59.534195][ T5007] should_fail+0x3bc/0x514 [ 59.534955][ T5007] __should_failslab+0xbc/0x10c [ 59.535769][ T5007] should_failslab+0x10/0x28 [ 59.536583][ T5007] slab_pre_alloc_hook+0x64/0xe8 [ 59.537392][ T5007] kmem_cache_alloc_trace+0x98/0x3ec [ 59.538235][ T5007] device_add+0xbc/0xf90 [ 59.538958][ T5007] device_add_disk+0x2d0/0xacc [ 59.539785][ T5007] loop_add+0x510/0x6e0 [ 59.540487][ T5007] loop_control_ioctl+0x130/0x4e0 [ 59.541278][ T5007] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.542091][ T5007] invoke_syscall+0x98/0x2b0 [ 59.542843][ T5007] el0_svc_common+0x138/0x258 [ 59.543676][ T5007] do_el0_svc+0x58/0x13c [ 59.544395][ T5007] el0_svc+0x78/0x1d0 [ 59.545077][ T5007] el0t_64_sync_handler+0xcc/0xe4 [ 59.545946][ T5007] el0t_64_sync+0x1a0/0x1a4 [ 59.558358][ T5009] FAULT_INJECTION: forcing a failure. [ 59.558358][ T5009] name failslab, interval 1, probability 0, space 0, times 0 [ 59.560563][ T5009] CPU: 0 PID: 5009 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.562180][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.563890][ T5009] Call trace: [ 59.564396][ T5009] dump_backtrace+0x0/0x458 [ 59.565161][ T5009] show_stack+0x2c/0x3c [ 59.565897][ T5009] __dump_stack+0x30/0x40 [ 59.566609][ T5009] dump_stack_lvl+0xf4/0x15c [ 59.567358][ T5009] dump_stack+0x1c/0x5c [ 59.567990][ T5009] should_fail+0x3bc/0x514 [ 59.568772][ T5009] __should_failslab+0xbc/0x10c [ 59.569589][ T5009] should_failslab+0x10/0x28 [ 59.570360][ T5009] slab_pre_alloc_hook+0x64/0xe8 [ 59.571197][ T5009] kmem_cache_alloc_trace+0x98/0x3ec [ 59.572126][ T5009] blk_iolatency_init+0x64/0x430 [ 59.572964][ T5009] blkcg_init_queue+0x3f0/0x484 [ 59.573757][ T5009] blk_alloc_queue+0x3cc/0x4a0 [ 59.574548][ T5009] __blk_mq_alloc_disk+0x5c/0x154 [ 59.575398][ T5009] loop_add+0x240/0x6e0 [ 59.576102][ T5009] loop_control_ioctl+0x130/0x4e0 [ 59.576952][ T5009] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.577786][ T5009] invoke_syscall+0x98/0x2b0 [ 59.578564][ T5009] el0_svc_common+0x138/0x258 [ 59.579328][ T5009] do_el0_svc+0x58/0x13c [ 59.580018][ T5009] el0_svc+0x78/0x1d0 [ 59.580749][ T5009] el0t_64_sync_handler+0xcc/0xe4 [ 59.581594][ T5009] el0t_64_sync+0x1a0/0x1a4 [ 59.593605][ T5011] FAULT_INJECTION: forcing a failure. [ 59.593605][ T5011] name failslab, interval 1, probability 0, space 0, times 0 [ 59.595715][ T5011] CPU: 1 PID: 5011 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.597211][ T5011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.598919][ T5011] Call trace: [ 59.599447][ T5011] dump_backtrace+0x0/0x458 [ 59.600182][ T5011] show_stack+0x2c/0x3c [ 59.600865][ T5011] __dump_stack+0x30/0x40 [ 59.601583][ T5011] dump_stack_lvl+0xf4/0x15c [ 59.602419][ T5011] dump_stack+0x1c/0x5c [ 59.603110][ T5011] should_fail+0x3bc/0x514 [ 59.603851][ T5011] __should_failslab+0xbc/0x10c [ 59.604669][ T5011] should_failslab+0x10/0x28 [ 59.605396][ T5011] slab_pre_alloc_hook+0x64/0xe8 [ 59.606189][ T5011] kmem_cache_alloc_trace+0x98/0x3ec [ 59.607118][ T5011] device_add+0xbc/0xf90 [ 59.607840][ T5011] device_add_disk+0x2d0/0xacc [ 59.608648][ T5011] loop_add+0x510/0x6e0 [ 59.609317][ T5011] loop_control_ioctl+0x130/0x4e0 [ 59.610106][ T5011] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.610932][ T5011] invoke_syscall+0x98/0x2b0 [ 59.611693][ T5011] el0_svc_common+0x138/0x258 [ 59.612493][ T5011] do_el0_svc+0x58/0x13c [ 59.613285][ T5011] el0_svc+0x78/0x1d0 [ 59.613918][ T5011] el0t_64_sync_handler+0xcc/0xe4 [ 59.614768][ T5011] el0t_64_sync+0x1a0/0x1a4 [ 59.625748][ T5013] FAULT_INJECTION: forcing a failure. [ 59.625748][ T5013] name failslab, interval 1, probability 0, space 0, times 0 [ 59.628018][ T5013] CPU: 1 PID: 5013 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.629426][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.631179][ T5013] Call trace: [ 59.631737][ T5013] dump_backtrace+0x0/0x458 [ 59.632458][ T5013] show_stack+0x2c/0x3c [ 59.633155][ T5013] __dump_stack+0x30/0x40 [ 59.633889][ T5013] dump_stack_lvl+0xf4/0x15c [ 59.634697][ T5013] dump_stack+0x1c/0x5c [ 59.635442][ T5013] should_fail+0x3bc/0x514 [ 59.636185][ T5013] __should_failslab+0xbc/0x10c [ 59.637012][ T5013] should_failslab+0x10/0x28 [ 59.637778][ T5013] slab_pre_alloc_hook+0x64/0xe8 [ 59.638658][ T5013] __kmalloc_track_caller+0x70/0x358 [ 59.639572][ T5013] kstrdup+0xe4/0x15c [ 59.640280][ T5013] kstrdup_const+0x54/0x6c [ 59.641022][ T5013] kvasprintf_const+0x120/0x2e4 [ 59.641896][ T5013] kobject_set_name_vargs+0xd8/0x1c8 [ 59.642801][ T5013] dev_set_name+0xe8/0x13c [ 59.643628][ T5013] device_add_disk+0x258/0xacc [ 59.644456][ T5013] loop_add+0x510/0x6e0 [ 59.645179][ T5013] loop_control_ioctl+0x130/0x4e0 [ 59.646028][ T5013] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.646822][ T5013] invoke_syscall+0x98/0x2b0 [ 59.647654][ T5013] el0_svc_common+0x138/0x258 [ 59.648494][ T5013] do_el0_svc+0x58/0x13c [ 59.649244][ T5013] el0_svc+0x78/0x1d0 [ 59.649978][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 59.650822][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 59.660939][ T5015] FAULT_INJECTION: forcing a failure. [ 59.660939][ T5015] name failslab, interval 1, probability 0, space 0, times 0 [ 59.663538][ T5015] CPU: 0 PID: 5015 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.665015][ T5015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.666703][ T5015] Call trace: [ 59.667232][ T5015] dump_backtrace+0x0/0x458 [ 59.667944][ T5015] show_stack+0x2c/0x3c [ 59.668656][ T5015] __dump_stack+0x30/0x40 [ 59.669384][ T5015] dump_stack_lvl+0xf4/0x15c [ 59.670145][ T5015] dump_stack+0x1c/0x5c [ 59.670804][ T5015] should_fail+0x3bc/0x514 [ 59.671568][ T5015] __should_failslab+0xbc/0x10c [ 59.672396][ T5015] should_failslab+0x10/0x28 [ 59.673095][ T5015] slab_pre_alloc_hook+0x64/0xe8 [ 59.673937][ T5015] kmem_cache_alloc_trace+0x98/0x3ec [ 59.674879][ T5015] device_add+0xbc/0xf90 [ 59.675575][ T5015] device_add_disk+0x2d0/0xacc [ 59.676338][ T5015] loop_add+0x510/0x6e0 [ 59.676993][ T5015] loop_control_ioctl+0x130/0x4e0 [ 59.677794][ T5015] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.678601][ T5015] invoke_syscall+0x98/0x2b0 [ 59.679372][ T5015] el0_svc_common+0x138/0x258 [ 59.680204][ T5015] do_el0_svc+0x58/0x13c [ 59.680894][ T5015] el0_svc+0x78/0x1d0 [ 59.681561][ T5015] el0t_64_sync_handler+0xcc/0xe4 [ 59.682388][ T5015] el0t_64_sync+0x1a0/0x1a4 [ 59.696411][ T5017] FAULT_INJECTION: forcing a failure. [ 59.696411][ T5017] name failslab, interval 1, probability 0, space 0, times 0 [ 59.698590][ T5017] CPU: 0 PID: 5017 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.700105][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.701812][ T5017] Call trace: [ 59.702401][ T5017] dump_backtrace+0x0/0x458 [ 59.703191][ T5017] show_stack+0x2c/0x3c [ 59.703916][ T5017] __dump_stack+0x30/0x40 [ 59.704665][ T5017] dump_stack_lvl+0xf4/0x15c [ 59.705414][ T5017] dump_stack+0x1c/0x5c [ 59.706123][ T5017] should_fail+0x3bc/0x514 [ 59.706954][ T5017] __should_failslab+0xbc/0x10c [ 59.707815][ T5017] should_failslab+0x10/0x28 [ 59.708635][ T5017] slab_pre_alloc_hook+0x64/0xe8 [ 59.709459][ T5017] __kmalloc_track_caller+0x70/0x358 [ 59.710323][ T5017] kstrdup+0xe4/0x15c [ 59.711013][ T5017] kstrdup_const+0x54/0x6c [ 59.711806][ T5017] kvasprintf_const+0x120/0x2e4 [ 59.712676][ T5017] kobject_set_name_vargs+0xd8/0x1c8 [ 59.713650][ T5017] dev_set_name+0xe8/0x13c [ 59.714373][ T5017] device_add_disk+0x258/0xacc [ 59.715194][ T5017] loop_add+0x510/0x6e0 [ 59.715853][ T5017] loop_control_ioctl+0x130/0x4e0 [ 59.716788][ T5017] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.717637][ T5017] invoke_syscall+0x98/0x2b0 [ 59.718433][ T5017] el0_svc_common+0x138/0x258 [ 59.719260][ T5017] do_el0_svc+0x58/0x13c [ 59.719989][ T5017] el0_svc+0x78/0x1d0 [ 59.720691][ T5017] el0t_64_sync_handler+0xcc/0xe4 [ 59.721531][ T5017] el0t_64_sync+0x1a0/0x1a4 [ 59.730248][ T5019] FAULT_INJECTION: forcing a failure. [ 59.730248][ T5019] name failslab, interval 1, probability 0, space 0, times 0 [ 59.733659][ T5019] CPU: 1 PID: 5019 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.735135][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.736811][ T5019] Call trace: [ 59.737401][ T5019] dump_backtrace+0x0/0x458 [ 59.738146][ T5019] show_stack+0x2c/0x3c [ 59.738811][ T5019] __dump_stack+0x30/0x40 [ 59.739516][ T5019] dump_stack_lvl+0xf4/0x15c [ 59.740230][ T5019] dump_stack+0x1c/0x5c [ 59.740933][ T5019] should_fail+0x3bc/0x514 [ 59.741689][ T5019] __should_failslab+0xbc/0x10c [ 59.742505][ T5019] should_failslab+0x10/0x28 [ 59.743238][ T5019] slab_pre_alloc_hook+0x64/0xe8 [ 59.744079][ T5019] kmem_cache_alloc_trace+0x98/0x3ec [ 59.745022][ T5019] blk_iolatency_init+0x64/0x430 [ 59.745860][ T5019] blkcg_init_queue+0x3f0/0x484 [ 59.746675][ T5019] blk_alloc_queue+0x3cc/0x4a0 [ 59.747488][ T5019] __blk_mq_alloc_disk+0x5c/0x154 [ 59.748334][ T5019] loop_add+0x240/0x6e0 [ 59.749034][ T5019] loop_control_ioctl+0x130/0x4e0 [ 59.749882][ T5019] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.750645][ T5019] invoke_syscall+0x98/0x2b0 [ 59.751395][ T5019] el0_svc_common+0x138/0x258 [ 59.752165][ T5019] do_el0_svc+0x58/0x13c [ 59.752895][ T5019] el0_svc+0x78/0x1d0 [ 59.753571][ T5019] el0t_64_sync_handler+0xcc/0xe4 [ 59.754448][ T5019] el0t_64_sync+0x1a0/0x1a4 [ 59.766191][ T5021] FAULT_INJECTION: forcing a failure. [ 59.766191][ T5021] name failslab, interval 1, probability 0, space 0, times 0 [ 59.768650][ T5021] CPU: 1 PID: 5021 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.770175][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.771880][ T5021] Call trace: [ 59.772420][ T5021] dump_backtrace+0x0/0x458 [ 59.773279][ T5021] show_stack+0x2c/0x3c [ 59.774061][ T5021] __dump_stack+0x30/0x40 [ 59.774788][ T5021] dump_stack_lvl+0xf4/0x15c [ 59.775585][ T5021] dump_stack+0x1c/0x5c [ 59.776305][ T5021] should_fail+0x3bc/0x514 [ 59.777124][ T5021] __should_failslab+0xbc/0x10c [ 59.777950][ T5021] should_failslab+0x10/0x28 [ 59.778766][ T5021] slab_pre_alloc_hook+0x64/0xe8 [ 59.779632][ T5021] __kmalloc_track_caller+0x70/0x358 [ 59.780524][ T5021] kstrdup+0xe4/0x15c [ 59.781245][ T5021] kstrdup_const+0x54/0x6c [ 59.781994][ T5021] kvasprintf_const+0x120/0x2e4 [ 59.782862][ T5021] kobject_set_name_vargs+0xd8/0x1c8 [ 59.783810][ T5021] dev_set_name+0xe8/0x13c [ 59.784593][ T5021] device_add_disk+0x258/0xacc [ 59.785415][ T5021] loop_add+0x510/0x6e0 [ 59.786111][ T5021] loop_control_ioctl+0x130/0x4e0 [ 59.786944][ T5021] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.787753][ T5021] invoke_syscall+0x98/0x2b0 [ 59.788481][ T5021] el0_svc_common+0x138/0x258 [ 59.789247][ T5021] do_el0_svc+0x58/0x13c [ 59.789925][ T5021] el0_svc+0x78/0x1d0 [ 59.790596][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 59.791475][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 59.802182][ T5023] FAULT_INJECTION: forcing a failure. [ 59.802182][ T5023] name failslab, interval 1, probability 0, space 0, times 0 [ 59.804361][ T5023] CPU: 0 PID: 5023 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.805897][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.807585][ T5023] Call trace: [ 59.808137][ T5023] dump_backtrace+0x0/0x458 [ 59.808920][ T5023] show_stack+0x2c/0x3c [ 59.809684][ T5023] __dump_stack+0x30/0x40 [ 59.810411][ T5023] dump_stack_lvl+0xf4/0x15c [ 59.811253][ T5023] dump_stack+0x1c/0x5c [ 59.811967][ T5023] should_fail+0x3bc/0x514 [ 59.812714][ T5023] __should_failslab+0xbc/0x10c [ 59.813570][ T5023] should_failslab+0x10/0x28 [ 59.814338][ T5023] slab_pre_alloc_hook+0x64/0xe8 [ 59.815202][ T5023] __kmalloc_track_caller+0x70/0x358 [ 59.816039][ T5023] kstrdup+0xe4/0x15c [ 59.816727][ T5023] kstrdup_const+0x54/0x6c [ 59.817462][ T5023] kvasprintf_const+0x120/0x2e4 [ 59.818286][ T5023] kobject_set_name_vargs+0xd8/0x1c8 [ 59.819126][ T5023] dev_set_name+0xe8/0x13c [ 59.819941][ T5023] device_add_disk+0x258/0xacc [ 59.820713][ T5023] loop_add+0x510/0x6e0 [ 59.821463][ T5023] loop_control_ioctl+0x130/0x4e0 [ 59.822271][ T5023] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.823086][ T5023] invoke_syscall+0x98/0x2b0 [ 59.823882][ T5023] el0_svc_common+0x138/0x258 [ 59.824684][ T5023] do_el0_svc+0x58/0x13c [ 59.825362][ T5023] el0_svc+0x78/0x1d0 [ 59.826030][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 59.826805][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 59.839233][ T5025] FAULT_INJECTION: forcing a failure. [ 59.839233][ T5025] name failslab, interval 1, probability 0, space 0, times 0 [ 59.841588][ T5025] CPU: 1 PID: 5025 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.843113][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.844786][ T5025] Call trace: [ 59.845355][ T5025] dump_backtrace+0x0/0x458 [ 59.846150][ T5025] show_stack+0x2c/0x3c [ 59.846874][ T5025] __dump_stack+0x30/0x40 [ 59.847605][ T5025] dump_stack_lvl+0xf4/0x15c [ 59.848375][ T5025] dump_stack+0x1c/0x5c [ 59.849088][ T5025] should_fail+0x3bc/0x514 [ 59.849815][ T5025] __should_failslab+0xbc/0x10c [ 59.850593][ T5025] should_failslab+0x10/0x28 [ 59.851310][ T5025] slab_pre_alloc_hook+0x64/0xe8 [ 59.852121][ T5025] kmem_cache_alloc_trace+0x98/0x3ec [ 59.853014][ T5025] rand_initialize_disk+0x58/0xb8 [ 59.853915][ T5025] __alloc_disk_node+0x2a8/0x450 [ 59.854744][ T5025] __blk_mq_alloc_disk+0xe8/0x154 [ 59.855636][ T5025] loop_add+0x240/0x6e0 [ 59.856335][ T5025] loop_control_ioctl+0x130/0x4e0 [ 59.857221][ T5025] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.858096][ T5025] invoke_syscall+0x98/0x2b0 [ 59.858866][ T5025] el0_svc_common+0x138/0x258 [ 59.859635][ T5025] do_el0_svc+0x58/0x13c [ 59.860378][ T5025] el0_svc+0x78/0x1d0 [ 59.861044][ T5025] el0t_64_sync_handler+0xcc/0xe4 [ 59.861823][ T5025] el0t_64_sync+0x1a0/0x1a4 [ 59.875631][ T5027] FAULT_INJECTION: forcing a failure. [ 59.875631][ T5027] name failslab, interval 1, probability 0, space 0, times 0 [ 59.877831][ T5027] CPU: 0 PID: 5027 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.879318][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.880991][ T5027] Call trace: [ 59.881567][ T5027] dump_backtrace+0x0/0x458 [ 59.882365][ T5027] show_stack+0x2c/0x3c [ 59.883046][ T5027] __dump_stack+0x30/0x40 [ 59.883802][ T5027] dump_stack_lvl+0xf4/0x15c [ 59.884571][ T5027] dump_stack+0x1c/0x5c [ 59.885193][ T5027] should_fail+0x3bc/0x514 [ 59.885938][ T5027] __should_failslab+0xbc/0x10c [ 59.886771][ T5027] should_failslab+0x10/0x28 [ 59.887545][ T5027] slab_pre_alloc_hook+0x64/0xe8 [ 59.888307][ T5027] kmem_cache_alloc_trace+0x98/0x3ec [ 59.889225][ T5027] blk_iolatency_init+0x64/0x430 [ 59.890014][ T5027] blkcg_init_queue+0x3f0/0x484 [ 59.890841][ T5027] blk_alloc_queue+0x3cc/0x4a0 [ 59.891658][ T5027] __blk_mq_alloc_disk+0x5c/0x154 [ 59.892457][ T5027] loop_add+0x240/0x6e0 [ 59.893147][ T5027] loop_control_ioctl+0x130/0x4e0 [ 59.894014][ T5027] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.894826][ T5027] invoke_syscall+0x98/0x2b0 [ 59.895614][ T5027] el0_svc_common+0x138/0x258 [ 59.896390][ T5027] do_el0_svc+0x58/0x13c [ 59.897107][ T5027] el0_svc+0x78/0x1d0 [ 59.897824][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 59.898671][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 59.909833][ T5029] FAULT_INJECTION: forcing a failure. [ 59.909833][ T5029] name failslab, interval 1, probability 0, space 0, times 0 [ 59.911661][ T5029] CPU: 0 PID: 5029 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.913288][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.914927][ T5029] Call trace: [ 59.915516][ T5029] dump_backtrace+0x0/0x458 [ 59.916285][ T5029] show_stack+0x2c/0x3c [ 59.916947][ T5029] __dump_stack+0x30/0x40 [ 59.917637][ T5029] dump_stack_lvl+0xf4/0x15c [ 59.918426][ T5029] dump_stack+0x1c/0x5c [ 59.919221][ T5029] should_fail+0x3bc/0x514 [ 59.919974][ T5029] __should_failslab+0xbc/0x10c [ 59.920739][ T5029] should_failslab+0x10/0x28 [ 59.921506][ T5029] slab_pre_alloc_hook+0x64/0xe8 [ 59.922348][ T5029] kmem_cache_alloc_trace+0x98/0x3ec [ 59.923301][ T5029] device_add+0xbc/0xf90 [ 59.924076][ T5029] device_add_disk+0x2d0/0xacc [ 59.924873][ T5029] loop_add+0x510/0x6e0 [ 59.925629][ T5029] loop_control_ioctl+0x130/0x4e0 [ 59.926461][ T5029] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.927322][ T5029] invoke_syscall+0x98/0x2b0 [ 59.928095][ T5029] el0_svc_common+0x138/0x258 [ 59.928888][ T5029] do_el0_svc+0x58/0x13c [ 59.929578][ T5029] el0_svc+0x78/0x1d0 [ 59.930218][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 59.931063][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 59.941482][ T5031] FAULT_INJECTION: forcing a failure. [ 59.941482][ T5031] name failslab, interval 1, probability 0, space 0, times 0 [ 59.943762][ T5031] CPU: 0 PID: 5031 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.945285][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.946899][ T5031] Call trace: [ 59.947365][ T5031] dump_backtrace+0x0/0x458 [ 59.948048][ T5031] show_stack+0x2c/0x3c [ 59.948706][ T5031] __dump_stack+0x30/0x40 [ 59.949435][ T5031] dump_stack_lvl+0xf4/0x15c [ 59.950223][ T5031] dump_stack+0x1c/0x5c [ 59.950926][ T5031] should_fail+0x3bc/0x514 [ 59.951653][ T5031] __should_failslab+0xbc/0x10c [ 59.952516][ T5031] should_failslab+0x10/0x28 [ 59.953277][ T5031] slab_pre_alloc_hook+0x64/0xe8 [ 59.954075][ T5031] __kmalloc_track_caller+0x70/0x358 [ 59.954907][ T5031] kstrdup+0xe4/0x15c [ 59.955611][ T5031] kstrdup_const+0x54/0x6c [ 59.956356][ T5031] kvasprintf_const+0x120/0x2e4 [ 59.957182][ T5031] kobject_set_name_vargs+0xd8/0x1c8 [ 59.958130][ T5031] dev_set_name+0xe8/0x13c [ 59.958900][ T5031] device_add_disk+0x258/0xacc [ 59.959712][ T5031] loop_add+0x510/0x6e0 [ 59.960417][ T5031] loop_control_ioctl+0x130/0x4e0 [ 59.961274][ T5031] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.962097][ T5031] invoke_syscall+0x98/0x2b0 [ 59.962928][ T5031] el0_svc_common+0x138/0x258 [ 59.963712][ T5031] do_el0_svc+0x58/0x13c [ 59.964450][ T5031] el0_svc+0x78/0x1d0 [ 59.965117][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 59.966002][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 59.979360][ T5033] FAULT_INJECTION: forcing a failure. [ 59.979360][ T5033] name failslab, interval 1, probability 0, space 0, times 0 [ 59.982001][ T5033] CPU: 0 PID: 5033 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.983573][ T5033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.985277][ T5033] Call trace: [ 59.985854][ T5033] dump_backtrace+0x0/0x458 [ 59.986836][ T5033] show_stack+0x2c/0x3c [ 59.987512][ T5033] __dump_stack+0x30/0x40 [ 59.988232][ T5033] dump_stack_lvl+0xf4/0x15c [ 59.989021][ T5033] dump_stack+0x1c/0x5c [ 59.989765][ T5033] should_fail+0x3bc/0x514 [ 59.990509][ T5033] __should_failslab+0xbc/0x10c [ 59.991309][ T5033] should_failslab+0x10/0x28 [ 59.992141][ T5033] slab_pre_alloc_hook+0x64/0xe8 [ 59.992960][ T5033] kmem_cache_alloc_trace+0x98/0x3ec [ 59.993835][ T5033] blk_iolatency_init+0x64/0x430 [ 59.994659][ T5033] blkcg_init_queue+0x3f0/0x484 [ 59.995440][ T5033] blk_alloc_queue+0x3cc/0x4a0 [ 59.996261][ T5033] __blk_mq_alloc_disk+0x5c/0x154 [ 59.997126][ T5033] loop_add+0x240/0x6e0 [ 59.997801][ T5033] loop_control_ioctl+0x130/0x4e0 [ 59.998639][ T5033] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.999491][ T5033] invoke_syscall+0x98/0x2b0 [ 60.000288][ T5033] el0_svc_common+0x138/0x258 [ 60.001101][ T5033] do_el0_svc+0x58/0x13c [ 60.001848][ T5033] el0_svc+0x78/0x1d0 [ 60.002544][ T5033] el0t_64_sync_handler+0xcc/0xe4 [ 60.003405][ T5033] el0t_64_sync+0x1a0/0x1a4 [ 60.014621][ T5035] FAULT_INJECTION: forcing a failure. [ 60.014621][ T5035] name failslab, interval 1, probability 0, space 0, times 0 [ 60.016887][ T5035] CPU: 0 PID: 5035 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.018439][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.020110][ T5035] Call trace: [ 60.020631][ T5035] dump_backtrace+0x0/0x458 [ 60.021379][ T5035] show_stack+0x2c/0x3c [ 60.022069][ T5035] __dump_stack+0x30/0x40 [ 60.022755][ T5035] dump_stack_lvl+0xf4/0x15c [ 60.023516][ T5035] dump_stack+0x1c/0x5c [ 60.024212][ T5035] should_fail+0x3bc/0x514 [ 60.024996][ T5035] __should_failslab+0xbc/0x10c [ 60.025830][ T5035] should_failslab+0x10/0x28 [ 60.026548][ T5035] slab_pre_alloc_hook+0x64/0xe8 [ 60.027338][ T5035] kmem_cache_alloc_trace+0x98/0x3ec [ 60.028187][ T5035] device_add+0xbc/0xf90 [ 60.028870][ T5035] device_add_disk+0x2d0/0xacc [ 60.029679][ T5035] loop_add+0x510/0x6e0 [ 60.030469][ T5035] loop_control_ioctl+0x130/0x4e0 [ 60.031370][ T5035] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.032191][ T5035] invoke_syscall+0x98/0x2b0 [ 60.032955][ T5035] el0_svc_common+0x138/0x258 [ 60.033771][ T5035] do_el0_svc+0x58/0x13c [ 60.034475][ T5035] el0_svc+0x78/0x1d0 [ 60.035120][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 60.035954][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 60.046379][ T5037] FAULT_INJECTION: forcing a failure. [ 60.046379][ T5037] name failslab, interval 1, probability 0, space 0, times 0 [ 60.048616][ T5037] CPU: 1 PID: 5037 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.050196][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.051896][ T5037] Call trace: [ 60.052412][ T5037] dump_backtrace+0x0/0x458 [ 60.053168][ T5037] show_stack+0x2c/0x3c [ 60.053830][ T5037] __dump_stack+0x30/0x40 [ 60.054551][ T5037] dump_stack_lvl+0xf4/0x15c [ 60.055326][ T5037] dump_stack+0x1c/0x5c [ 60.056000][ T5037] should_fail+0x3bc/0x514 [ 60.056768][ T5037] __should_failslab+0xbc/0x10c [ 60.057550][ T5037] should_failslab+0x10/0x28 [ 60.058233][ T5037] slab_pre_alloc_hook+0x64/0xe8 [ 60.059151][ T5037] __kmalloc_track_caller+0x70/0x358 [ 60.060085][ T5037] kstrdup+0xe4/0x15c [ 60.060740][ T5037] kstrdup_const+0x54/0x6c [ 60.061509][ T5037] kvasprintf_const+0x120/0x2e4 [ 60.062304][ T5037] kobject_set_name_vargs+0xd8/0x1c8 [ 60.063172][ T5037] dev_set_name+0xe8/0x13c [ 60.063883][ T5037] device_add_disk+0x258/0xacc [ 60.064715][ T5037] loop_add+0x510/0x6e0 [ 60.065405][ T5037] loop_control_ioctl+0x130/0x4e0 [ 60.066277][ T5037] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.067160][ T5037] invoke_syscall+0x98/0x2b0 [ 60.067942][ T5037] el0_svc_common+0x138/0x258 [ 60.068756][ T5037] do_el0_svc+0x58/0x13c [ 60.069435][ T5037] el0_svc+0x78/0x1d0 [ 60.070124][ T5037] el0t_64_sync_handler+0xcc/0xe4 [ 60.070944][ T5037] el0t_64_sync+0x1a0/0x1a4 [ 60.082853][ T5039] FAULT_INJECTION: forcing a failure. [ 60.082853][ T5039] name failslab, interval 1, probability 0, space 0, times 0 [ 60.085266][ T5039] CPU: 0 PID: 5039 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.086849][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.088476][ T5039] Call trace: [ 60.089021][ T5039] dump_backtrace+0x0/0x458 [ 60.089742][ T5039] show_stack+0x2c/0x3c [ 60.090450][ T5039] __dump_stack+0x30/0x40 [ 60.091220][ T5039] dump_stack_lvl+0xf4/0x15c [ 60.092083][ T5039] dump_stack+0x1c/0x5c [ 60.092805][ T5039] should_fail+0x3bc/0x514 [ 60.093591][ T5039] __should_failslab+0xbc/0x10c [ 60.094428][ T5039] should_failslab+0x10/0x28 [ 60.095171][ T5039] slab_pre_alloc_hook+0x64/0xe8 [ 60.095971][ T5039] kmem_cache_alloc+0x94/0x3d4 [ 60.096816][ T5039] security_inode_alloc+0x38/0x11c [ 60.097772][ T5039] inode_init_always+0x670/0xa84 [ 60.098604][ T5039] new_inode_pseudo+0x7c/0x1fc [ 60.099400][ T5039] new_inode+0x38/0x174 [ 60.100067][ T5039] bdev_alloc+0x30/0x1f8 [ 60.100760][ T5039] __alloc_disk_node+0xbc/0x450 [ 60.101550][ T5039] __blk_mq_alloc_disk+0xe8/0x154 [ 60.102446][ T5039] loop_add+0x240/0x6e0 [ 60.103195][ T5039] loop_control_ioctl+0x130/0x4e0 [ 60.104055][ T5039] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.104881][ T5039] invoke_syscall+0x98/0x2b0 [ 60.105665][ T5039] el0_svc_common+0x138/0x258 [ 60.106487][ T5039] do_el0_svc+0x58/0x13c [ 60.107198][ T5039] el0_svc+0x78/0x1d0 [ 60.107904][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 60.108802][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 60.120050][ T5041] FAULT_INJECTION: forcing a failure. [ 60.120050][ T5041] name failslab, interval 1, probability 0, space 0, times 0 [ 60.122273][ T5041] CPU: 1 PID: 5041 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.123717][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.125493][ T5041] Call trace: [ 60.126005][ T5041] dump_backtrace+0x0/0x458 [ 60.126729][ T5041] show_stack+0x2c/0x3c [ 60.127430][ T5041] __dump_stack+0x30/0x40 [ 60.128159][ T5041] dump_stack_lvl+0xf4/0x15c [ 60.128994][ T5041] dump_stack+0x1c/0x5c [ 60.129691][ T5041] should_fail+0x3bc/0x514 [ 60.130441][ T5041] __should_failslab+0xbc/0x10c [ 60.131273][ T5041] should_failslab+0x10/0x28 [ 60.132114][ T5041] slab_pre_alloc_hook+0x64/0xe8 [ 60.132953][ T5041] __kmalloc_track_caller+0x70/0x358 [ 60.133898][ T5041] kstrdup+0xe4/0x15c [ 60.134552][ T5041] kstrdup_const+0x54/0x6c [ 60.135323][ T5041] kvasprintf_const+0x120/0x2e4 [ 60.136133][ T5041] kobject_set_name_vargs+0xd8/0x1c8 [ 60.136998][ T5041] dev_set_name+0xe8/0x13c [ 60.137724][ T5041] device_add_disk+0x258/0xacc [ 60.138520][ T5041] loop_add+0x510/0x6e0 [ 60.139200][ T5041] loop_control_ioctl+0x130/0x4e0 [ 60.140009][ T5041] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.140820][ T5041] invoke_syscall+0x98/0x2b0 [ 60.141566][ T5041] el0_svc_common+0x138/0x258 [ 60.142321][ T5041] do_el0_svc+0x58/0x13c [ 60.143036][ T5041] el0_svc+0x78/0x1d0 [ 60.143748][ T5041] el0t_64_sync_handler+0xcc/0xe4 [ 60.144622][ T5041] el0t_64_sync+0x1a0/0x1a4 [ 60.162819][ T5043] FAULT_INJECTION: forcing a failure. [ 60.162819][ T5043] name failslab, interval 1, probability 0, space 0, times 0 [ 60.165063][ T5043] CPU: 0 PID: 5043 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.166450][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.168160][ T5043] Call trace: [ 60.168713][ T5043] dump_backtrace+0x0/0x458 [ 60.169490][ T5043] show_stack+0x2c/0x3c [ 60.170203][ T5043] __dump_stack+0x30/0x40 [ 60.170968][ T5043] dump_stack_lvl+0xf4/0x15c [ 60.171700][ T5043] dump_stack+0x1c/0x5c [ 60.172428][ T5043] should_fail+0x3bc/0x514 [ 60.173173][ T5043] __should_failslab+0xbc/0x10c [ 60.174023][ T5043] should_failslab+0x10/0x28 [ 60.174838][ T5043] slab_pre_alloc_hook+0x64/0xe8 [ 60.175664][ T5043] kmem_cache_alloc_trace+0x98/0x3ec [ 60.176576][ T5043] device_add+0xbc/0xf90 [ 60.177324][ T5043] device_add_disk+0x2d0/0xacc [ 60.178117][ T5043] loop_add+0x510/0x6e0 [ 60.178813][ T5043] loop_control_ioctl+0x130/0x4e0 [ 60.179694][ T5043] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.180512][ T5043] invoke_syscall+0x98/0x2b0 [ 60.181276][ T5043] el0_svc_common+0x138/0x258 [ 60.182109][ T5043] do_el0_svc+0x58/0x13c [ 60.182838][ T5043] el0_svc+0x78/0x1d0 [ 60.183592][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 60.184396][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 60.194965][ T5045] FAULT_INJECTION: forcing a failure. [ 60.194965][ T5045] name failslab, interval 1, probability 0, space 0, times 0 [ 60.197314][ T5045] CPU: 1 PID: 5045 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.198813][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.200544][ T5045] Call trace: [ 60.201097][ T5045] dump_backtrace+0x0/0x458 [ 60.201871][ T5045] show_stack+0x2c/0x3c [ 60.202515][ T5045] __dump_stack+0x30/0x40 [ 60.203309][ T5045] dump_stack_lvl+0xf4/0x15c [ 60.204064][ T5045] dump_stack+0x1c/0x5c [ 60.204744][ T5045] should_fail+0x3bc/0x514 [ 60.205518][ T5045] __should_failslab+0xbc/0x10c [ 60.206333][ T5045] should_failslab+0x10/0x28 [ 60.207150][ T5045] slab_pre_alloc_hook+0x64/0xe8 [ 60.207987][ T5045] kmem_cache_alloc_trace+0x98/0x3ec [ 60.208809][ T5045] device_add+0xbc/0xf90 [ 60.209507][ T5045] device_add_disk+0x2d0/0xacc [ 60.210308][ T5045] loop_add+0x510/0x6e0 [ 60.211024][ T5045] loop_control_ioctl+0x130/0x4e0 [ 60.211857][ T5045] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.212695][ T5045] invoke_syscall+0x98/0x2b0 [ 60.213464][ T5045] el0_svc_common+0x138/0x258 [ 60.214403][ T5045] do_el0_svc+0x58/0x13c [ 60.215111][ T5045] el0_svc+0x78/0x1d0 [ 60.215805][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 60.216699][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 60.226524][ T5047] FAULT_INJECTION: forcing a failure. [ 60.226524][ T5047] name failslab, interval 1, probability 0, space 0, times 0 [ 60.228716][ T5047] CPU: 0 PID: 5047 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.230289][ T5047] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.231965][ T5047] Call trace: [ 60.232468][ T5047] dump_backtrace+0x0/0x458 [ 60.233194][ T5047] show_stack+0x2c/0x3c [ 60.233918][ T5047] __dump_stack+0x30/0x40 [ 60.234646][ T5047] dump_stack_lvl+0xf4/0x15c [ 60.235457][ T5047] dump_stack+0x1c/0x5c [ 60.236174][ T5047] should_fail+0x3bc/0x514 [ 60.236973][ T5047] __should_failslab+0xbc/0x10c [ 60.237938][ T5047] should_failslab+0x10/0x28 [ 60.238741][ T5047] slab_pre_alloc_hook+0x64/0xe8 [ 60.239641][ T5047] kmem_cache_alloc_node_trace+0x9c/0x424 [ 60.240645][ T5047] iolatency_pd_alloc+0xac/0x164 [ 60.241574][ T5047] blkcg_activate_policy+0x204/0xa8c [ 60.242487][ T5047] blk_iolatency_init+0x22c/0x430 [ 60.243316][ T5047] blkcg_init_queue+0x3f0/0x484 [ 60.244179][ T5047] blk_alloc_queue+0x3cc/0x4a0 [ 60.245004][ T5047] __blk_mq_alloc_disk+0x5c/0x154 [ 60.245843][ T5047] loop_add+0x240/0x6e0 [ 60.246560][ T5047] loop_control_ioctl+0x130/0x4e0 [ 60.247400][ T5047] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.248220][ T5047] invoke_syscall+0x98/0x2b0 [ 60.249074][ T5047] el0_svc_common+0x138/0x258 [ 60.249814][ T5047] do_el0_svc+0x58/0x13c [ 60.250579][ T5047] el0_svc+0x78/0x1d0 [ 60.251253][ T5047] el0t_64_sync_handler+0xcc/0xe4 [ 60.252123][ T5047] el0t_64_sync+0x1a0/0x1a4 [ 60.268019][ T5049] FAULT_INJECTION: forcing a failure. [ 60.268019][ T5049] name failslab, interval 1, probability 0, space 0, times 0 [ 60.270323][ T5049] CPU: 0 PID: 5049 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.271975][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.273700][ T5049] Call trace: [ 60.274190][ T5049] dump_backtrace+0x0/0x458 [ 60.274981][ T5049] show_stack+0x2c/0x3c [ 60.275722][ T5049] __dump_stack+0x30/0x40 [ 60.276445][ T5049] dump_stack_lvl+0xf4/0x15c [ 60.277175][ T5049] dump_stack+0x1c/0x5c [ 60.277789][ T5049] should_fail+0x3bc/0x514 [ 60.278559][ T5049] __should_failslab+0xbc/0x10c [ 60.279381][ T5049] should_failslab+0x10/0x28 [ 60.280171][ T5049] slab_pre_alloc_hook+0x64/0xe8 [ 60.281023][ T5049] kmem_cache_alloc_trace+0x98/0x3ec [ 60.281955][ T5049] device_add+0xbc/0xf90 [ 60.282664][ T5049] device_add_disk+0x2d0/0xacc [ 60.283565][ T5049] loop_add+0x510/0x6e0 [ 60.284310][ T5049] loop_control_ioctl+0x130/0x4e0 [ 60.285211][ T5049] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.286059][ T5049] invoke_syscall+0x98/0x2b0 [ 60.286853][ T5049] el0_svc_common+0x138/0x258 [ 60.287708][ T5049] do_el0_svc+0x58/0x13c [ 60.288389][ T5049] el0_svc+0x78/0x1d0 [ 60.289128][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 60.289992][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 60.301456][ T5051] FAULT_INJECTION: forcing a failure. [ 60.301456][ T5051] name failslab, interval 1, probability 0, space 0, times 0 [ 60.303942][ T5051] CPU: 1 PID: 5051 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.305554][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.307240][ T5051] Call trace: [ 60.307798][ T5051] dump_backtrace+0x0/0x458 [ 60.308623][ T5051] show_stack+0x2c/0x3c [ 60.309382][ T5051] __dump_stack+0x30/0x40 [ 60.310114][ T5051] dump_stack_lvl+0xf4/0x15c [ 60.310994][ T5051] dump_stack+0x1c/0x5c [ 60.311668][ T5051] should_fail+0x3bc/0x514 [ 60.312379][ T5051] __should_failslab+0xbc/0x10c [ 60.313215][ T5051] should_failslab+0x10/0x28 [ 60.314023][ T5051] slab_pre_alloc_hook+0x64/0xe8 [ 60.314853][ T5051] __kmalloc_track_caller+0x70/0x358 [ 60.315774][ T5051] kstrdup+0xe4/0x15c [ 60.316500][ T5051] kstrdup_const+0x54/0x6c [ 60.317246][ T5051] kvasprintf_const+0x120/0x2e4 [ 60.318074][ T5051] kobject_set_name_vargs+0xd8/0x1c8 [ 60.318970][ T5051] dev_set_name+0xe8/0x13c [ 60.319724][ T5051] device_add_disk+0x258/0xacc [ 60.320503][ T5051] loop_add+0x510/0x6e0 [ 60.321224][ T5051] loop_control_ioctl+0x130/0x4e0 [ 60.322064][ T5051] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.322886][ T5051] invoke_syscall+0x98/0x2b0 [ 60.323639][ T5051] el0_svc_common+0x138/0x258 [ 60.324477][ T5051] do_el0_svc+0x58/0x13c [ 60.325203][ T5051] el0_svc+0x78/0x1d0 [ 60.325925][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 60.326834][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 60.337390][ T5053] FAULT_INJECTION: forcing a failure. [ 60.337390][ T5053] name failslab, interval 1, probability 0, space 0, times 0 [ 60.339684][ T5053] CPU: 1 PID: 5053 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.341211][ T5053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.342922][ T5053] Call trace: [ 60.343457][ T5053] dump_backtrace+0x0/0x458 [ 60.344246][ T5053] show_stack+0x2c/0x3c [ 60.344958][ T5053] __dump_stack+0x30/0x40 [ 60.345663][ T5053] dump_stack_lvl+0xf4/0x15c [ 60.346417][ T5053] dump_stack+0x1c/0x5c [ 60.347126][ T5053] should_fail+0x3bc/0x514 [ 60.347863][ T5053] __should_failslab+0xbc/0x10c [ 60.348645][ T5053] should_failslab+0x10/0x28 [ 60.349455][ T5053] slab_pre_alloc_hook+0x64/0xe8 [ 60.350298][ T5053] kmem_cache_alloc_trace+0x98/0x3ec [ 60.351165][ T5053] blk_iolatency_init+0x64/0x430 [ 60.351955][ T5053] blkcg_init_queue+0x3f0/0x484 [ 60.352662][ T5053] blk_alloc_queue+0x3cc/0x4a0 [ 60.353445][ T5053] __blk_mq_alloc_disk+0x5c/0x154 [ 60.354134][ T5053] loop_add+0x240/0x6e0 [ 60.354795][ T5053] loop_control_ioctl+0x130/0x4e0 [ 60.355581][ T5053] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.356380][ T5053] invoke_syscall+0x98/0x2b0 [ 60.357152][ T5053] el0_svc_common+0x138/0x258 [ 60.357839][ T5053] do_el0_svc+0x58/0x13c [ 60.358531][ T5053] el0_svc+0x78/0x1d0 [ 60.359143][ T5053] el0t_64_sync_handler+0xcc/0xe4 [ 60.359925][ T5053] el0t_64_sync+0x1a0/0x1a4 [ 60.369098][ T5055] FAULT_INJECTION: forcing a failure. [ 60.369098][ T5055] name failslab, interval 1, probability 0, space 0, times 0 [ 60.371185][ T5055] CPU: 1 PID: 5055 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.372719][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.374424][ T5055] Call trace: [ 60.375008][ T5055] dump_backtrace+0x0/0x458 [ 60.375773][ T5055] show_stack+0x2c/0x3c [ 60.376521][ T5055] __dump_stack+0x30/0x40 [ 60.377184][ T5055] dump_stack_lvl+0xf4/0x15c [ 60.377934][ T5055] dump_stack+0x1c/0x5c [ 60.378591][ T5055] should_fail+0x3bc/0x514 [ 60.379328][ T5055] __should_failslab+0xbc/0x10c [ 60.380146][ T5055] should_failslab+0x10/0x28 [ 60.380920][ T5055] slab_pre_alloc_hook+0x64/0xe8 [ 60.381761][ T5055] kmem_cache_alloc+0x94/0x3d4 [ 60.382547][ T5055] __debug_object_init+0x7c8/0xa0c [ 60.383414][ T5055] debug_object_init+0x20/0x2c [ 60.384187][ T5055] __percpu_counter_init+0x10c/0x26c [ 60.385060][ T5055] blkg_rwstat_init+0x164/0x2b8 [ 60.385832][ T5055] throtl_pd_alloc+0xc0/0x4ec [ 60.386552][ T5055] blkcg_activate_policy+0x204/0xa8c [ 60.387474][ T5055] blk_throtl_init+0x308/0x3ec [ 60.388311][ T5055] blkcg_init_queue+0x3cc/0x484 [ 60.389166][ T5055] blk_alloc_queue+0x3cc/0x4a0 [ 60.389931][ T5055] __blk_mq_alloc_disk+0x5c/0x154 [ 60.390772][ T5055] loop_add+0x240/0x6e0 [ 60.391434][ T5055] loop_control_ioctl+0x130/0x4e0 [ 60.392208][ T5055] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.393079][ T5055] invoke_syscall+0x98/0x2b0 [ 60.393901][ T5055] el0_svc_common+0x138/0x258 [ 60.394740][ T5055] do_el0_svc+0x58/0x13c [ 60.395472][ T5055] el0_svc+0x78/0x1d0 [ 60.396208][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 60.397063][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 60.409296][ T5057] FAULT_INJECTION: forcing a failure. [ 60.409296][ T5057] name failslab, interval 1, probability 0, space 0, times 0 [ 60.411525][ T5057] CPU: 1 PID: 5057 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.413057][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.414772][ T5057] Call trace: [ 60.415330][ T5057] dump_backtrace+0x0/0x458 [ 60.416144][ T5057] show_stack+0x2c/0x3c [ 60.416820][ T5057] __dump_stack+0x30/0x40 [ 60.417610][ T5057] dump_stack_lvl+0xf4/0x15c [ 60.418341][ T5057] dump_stack+0x1c/0x5c [ 60.419072][ T5057] should_fail+0x3bc/0x514 [ 60.419865][ T5057] __should_failslab+0xbc/0x10c [ 60.420706][ T5057] should_failslab+0x10/0x28 [ 60.421533][ T5057] slab_pre_alloc_hook+0x64/0xe8 [ 60.422424][ T5057] kmem_cache_alloc_node_trace+0x9c/0x424 [ 60.423373][ T5057] iolatency_pd_alloc+0xac/0x164 [ 60.424161][ T5057] blkcg_activate_policy+0x204/0xa8c [ 60.425034][ T5057] blk_iolatency_init+0x22c/0x430 [ 60.425914][ T5057] blkcg_init_queue+0x3f0/0x484 [ 60.426731][ T5057] blk_alloc_queue+0x3cc/0x4a0 [ 60.427565][ T5057] __blk_mq_alloc_disk+0x5c/0x154 [ 60.428452][ T5057] loop_add+0x240/0x6e0 [ 60.429180][ T5057] loop_control_ioctl+0x130/0x4e0 [ 60.430081][ T5057] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.430877][ T5057] invoke_syscall+0x98/0x2b0 [ 60.431610][ T5057] el0_svc_common+0x138/0x258 [ 60.432382][ T5057] do_el0_svc+0x58/0x13c [ 60.433035][ T5057] el0_svc+0x78/0x1d0 [ 60.433700][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 60.434540][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 60.449080][ T5059] FAULT_INJECTION: forcing a failure. [ 60.449080][ T5059] name failslab, interval 1, probability 0, space 0, times 0 [ 60.451382][ T5059] CPU: 1 PID: 5059 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.452929][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.454648][ T5059] Call trace: [ 60.455247][ T5059] dump_backtrace+0x0/0x458 [ 60.456042][ T5059] show_stack+0x2c/0x3c [ 60.456793][ T5059] __dump_stack+0x30/0x40 [ 60.457509][ T5059] dump_stack_lvl+0xf4/0x15c [ 60.458280][ T5059] dump_stack+0x1c/0x5c [ 60.459029][ T5059] should_fail+0x3bc/0x514 [ 60.459771][ T5059] __should_failslab+0xbc/0x10c [ 60.460565][ T5059] should_failslab+0x10/0x28 [ 60.461309][ T5059] slab_pre_alloc_hook+0x64/0xe8 [ 60.462115][ T5059] kmem_cache_alloc_trace+0x98/0x3ec [ 60.462985][ T5059] rand_initialize_disk+0x58/0xb8 [ 60.463831][ T5059] __alloc_disk_node+0x2a8/0x450 [ 60.464654][ T5059] __blk_mq_alloc_disk+0xe8/0x154 [ 60.465472][ T5059] loop_add+0x240/0x6e0 [ 60.466137][ T5059] loop_control_ioctl+0x130/0x4e0 [ 60.467021][ T5059] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.467833][ T5059] invoke_syscall+0x98/0x2b0 [ 60.468606][ T5059] el0_svc_common+0x138/0x258 [ 60.469404][ T5059] do_el0_svc+0x58/0x13c [ 60.470155][ T5059] el0_svc+0x78/0x1d0 [ 60.470777][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 60.471646][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 60.485674][ T5061] FAULT_INJECTION: forcing a failure. [ 60.485674][ T5061] name failslab, interval 1, probability 0, space 0, times 0 [ 60.488122][ T5061] CPU: 0 PID: 5061 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.489711][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.491432][ T5061] Call trace: [ 60.492009][ T5061] dump_backtrace+0x0/0x458 [ 60.492758][ T5061] show_stack+0x2c/0x3c [ 60.493444][ T5061] __dump_stack+0x30/0x40 [ 60.494318][ T5061] dump_stack_lvl+0xf4/0x15c [ 60.495048][ T5061] dump_stack+0x1c/0x5c [ 60.495715][ T5061] should_fail+0x3bc/0x514 [ 60.496452][ T5061] __should_failslab+0xbc/0x10c [ 60.497211][ T5061] should_failslab+0x10/0x28 [ 60.497999][ T5061] slab_pre_alloc_hook+0x64/0xe8 [ 60.498818][ T5061] kmem_cache_alloc_trace+0x98/0x3ec [ 60.499701][ T5061] rand_initialize_disk+0x58/0xb8 [ 60.500603][ T5061] __alloc_disk_node+0x2a8/0x450 [ 60.501423][ T5061] __blk_mq_alloc_disk+0xe8/0x154 [ 60.502373][ T5061] loop_add+0x240/0x6e0 [ 60.503092][ T5061] loop_control_ioctl+0x130/0x4e0 [ 60.503986][ T5061] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.504791][ T5061] invoke_syscall+0x98/0x2b0 [ 60.505580][ T5061] el0_svc_common+0x138/0x258 [ 60.506392][ T5061] do_el0_svc+0x58/0x13c [ 60.507067][ T5061] el0_svc+0x78/0x1d0 [ 60.507737][ T5061] el0t_64_sync_handler+0xcc/0xe4 [ 60.508524][ T5061] el0t_64_sync+0x1a0/0x1a4 [ 60.527039][ T5063] FAULT_INJECTION: forcing a failure. [ 60.527039][ T5063] name failslab, interval 1, probability 0, space 0, times 0 [ 60.529260][ T5063] CPU: 0 PID: 5063 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.530850][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.532570][ T5063] Call trace: [ 60.533103][ T5063] dump_backtrace+0x0/0x458 [ 60.533925][ T5063] show_stack+0x2c/0x3c [ 60.534678][ T5063] __dump_stack+0x30/0x40 [ 60.535450][ T5063] dump_stack_lvl+0xf4/0x15c [ 60.536233][ T5063] dump_stack+0x1c/0x5c [ 60.536893][ T5063] should_fail+0x3bc/0x514 [ 60.537616][ T5063] __should_failslab+0xbc/0x10c [ 60.538429][ T5063] should_failslab+0x10/0x28 [ 60.539179][ T5063] slab_pre_alloc_hook+0x64/0xe8 [ 60.539947][ T5063] kmem_cache_alloc_trace+0x98/0x3ec [ 60.540828][ T5063] rand_initialize_disk+0x58/0xb8 [ 60.541659][ T5063] __alloc_disk_node+0x2a8/0x450 [ 60.542457][ T5063] __blk_mq_alloc_disk+0xe8/0x154 [ 60.543258][ T5063] loop_add+0x240/0x6e0 [ 60.543954][ T5063] loop_control_ioctl+0x130/0x4e0 [ 60.544783][ T5063] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.545584][ T5063] invoke_syscall+0x98/0x2b0 [ 60.546366][ T5063] el0_svc_common+0x138/0x258 [ 60.547201][ T5063] do_el0_svc+0x58/0x13c [ 60.547871][ T5063] el0_svc+0x78/0x1d0 [ 60.548609][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 60.549496][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 60.563027][ T5065] FAULT_INJECTION: forcing a failure. [ 60.563027][ T5065] name failslab, interval 1, probability 0, space 0, times 0 [ 60.565236][ T5065] CPU: 1 PID: 5065 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.566817][ T5065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.568541][ T5065] Call trace: [ 60.569121][ T5065] dump_backtrace+0x0/0x458 [ 60.569924][ T5065] show_stack+0x2c/0x3c [ 60.570614][ T5065] __dump_stack+0x30/0x40 [ 60.571381][ T5065] dump_stack_lvl+0xf4/0x15c [ 60.572171][ T5065] dump_stack+0x1c/0x5c [ 60.572874][ T5065] should_fail+0x3bc/0x514 [ 60.573611][ T5065] __should_failslab+0xbc/0x10c [ 60.574481][ T5065] should_failslab+0x10/0x28 [ 60.575229][ T5065] slab_pre_alloc_hook+0x64/0xe8 [ 60.576049][ T5065] kmem_cache_alloc_node_trace+0x9c/0x424 [ 60.577109][ T5065] iolatency_pd_alloc+0xac/0x164 [ 60.577925][ T5065] blkcg_activate_policy+0x204/0xa8c [ 60.578856][ T5065] blk_iolatency_init+0x22c/0x430 [ 60.579716][ T5065] blkcg_init_queue+0x3f0/0x484 [ 60.580546][ T5065] blk_alloc_queue+0x3cc/0x4a0 [ 60.581379][ T5065] __blk_mq_alloc_disk+0x5c/0x154 [ 60.582314][ T5065] loop_add+0x240/0x6e0 [ 60.583020][ T5065] loop_control_ioctl+0x130/0x4e0 [ 60.583902][ T5065] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.584696][ T5065] invoke_syscall+0x98/0x2b0 [ 60.585495][ T5065] el0_svc_common+0x138/0x258 [ 60.586282][ T5065] do_el0_svc+0x58/0x13c [ 60.587020][ T5065] el0_svc+0x78/0x1d0 [ 60.587649][ T5065] el0t_64_sync_handler+0xcc/0xe4 [ 60.588484][ T5065] el0t_64_sync+0x1a0/0x1a4 1970/01/01 00:01:00 executed programs: 232 [ 60.602405][ T5067] FAULT_INJECTION: forcing a failure. [ 60.602405][ T5067] name failslab, interval 1, probability 0, space 0, times 0 [ 60.604708][ T5067] CPU: 0 PID: 5067 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.606193][ T5067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.607815][ T5067] Call trace: [ 60.608345][ T5067] dump_backtrace+0x0/0x458 [ 60.609072][ T5067] show_stack+0x2c/0x3c [ 60.609761][ T5067] __dump_stack+0x30/0x40 [ 60.610511][ T5067] dump_stack_lvl+0xf4/0x15c [ 60.611257][ T5067] dump_stack+0x1c/0x5c [ 60.611932][ T5067] should_fail+0x3bc/0x514 [ 60.612635][ T5067] __should_failslab+0xbc/0x10c [ 60.613387][ T5067] should_failslab+0x10/0x28 [ 60.614049][ T5067] slab_pre_alloc_hook+0x64/0xe8 [ 60.614829][ T5067] __kmalloc_track_caller+0x70/0x358 [ 60.615751][ T5067] kstrdup+0xe4/0x15c [ 60.616417][ T5067] kstrdup_const+0x54/0x6c [ 60.617179][ T5067] kvasprintf_const+0x120/0x2e4 [ 60.618039][ T5067] kobject_set_name_vargs+0xd8/0x1c8 [ 60.618948][ T5067] dev_set_name+0xe8/0x13c [ 60.619663][ T5067] device_add_disk+0x258/0xacc [ 60.620469][ T5067] loop_add+0x510/0x6e0 [ 60.621257][ T5067] loop_control_ioctl+0x130/0x4e0 [ 60.622118][ T5067] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.623056][ T5067] invoke_syscall+0x98/0x2b0 [ 60.623844][ T5067] el0_svc_common+0x138/0x258 [ 60.624658][ T5067] do_el0_svc+0x58/0x13c [ 60.625375][ T5067] el0_svc+0x78/0x1d0 [ 60.626038][ T5067] el0t_64_sync_handler+0xcc/0xe4 [ 60.626862][ T5067] el0t_64_sync+0x1a0/0x1a4 [ 60.638985][ T5069] FAULT_INJECTION: forcing a failure. [ 60.638985][ T5069] name failslab, interval 1, probability 0, space 0, times 0 [ 60.641224][ T5069] CPU: 0 PID: 5069 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.642802][ T5069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.644496][ T5069] Call trace: [ 60.645119][ T5069] dump_backtrace+0x0/0x458 [ 60.645827][ T5069] show_stack+0x2c/0x3c [ 60.646593][ T5069] __dump_stack+0x30/0x40 [ 60.647370][ T5069] dump_stack_lvl+0xf4/0x15c [ 60.648127][ T5069] dump_stack+0x1c/0x5c [ 60.648872][ T5069] should_fail+0x3bc/0x514 [ 60.649662][ T5069] __should_failslab+0xbc/0x10c [ 60.650487][ T5069] should_failslab+0x10/0x28 [ 60.651259][ T5069] slab_pre_alloc_hook+0x64/0xe8 [ 60.652132][ T5069] kmem_cache_alloc_trace+0x98/0x3ec [ 60.653073][ T5069] device_add+0xbc/0xf90 [ 60.653751][ T5069] device_add_disk+0x2d0/0xacc [ 60.654603][ T5069] loop_add+0x510/0x6e0 [ 60.655300][ T5069] loop_control_ioctl+0x130/0x4e0 [ 60.656124][ T5069] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.656900][ T5069] invoke_syscall+0x98/0x2b0 [ 60.657743][ T5069] el0_svc_common+0x138/0x258 [ 60.658556][ T5069] do_el0_svc+0x58/0x13c [ 60.659267][ T5069] el0_svc+0x78/0x1d0 [ 60.659937][ T5069] el0t_64_sync_handler+0xcc/0xe4 [ 60.660814][ T5069] el0t_64_sync+0x1a0/0x1a4 [ 60.671297][ T5071] FAULT_INJECTION: forcing a failure. [ 60.671297][ T5071] name failslab, interval 1, probability 0, space 0, times 0 [ 60.673805][ T5071] CPU: 1 PID: 5071 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.675379][ T5071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.677137][ T5071] Call trace: [ 60.677691][ T5071] dump_backtrace+0x0/0x458 [ 60.678477][ T5071] show_stack+0x2c/0x3c [ 60.679192][ T5071] __dump_stack+0x30/0x40 [ 60.679968][ T5071] dump_stack_lvl+0xf4/0x15c [ 60.680756][ T5071] dump_stack+0x1c/0x5c [ 60.681459][ T5071] should_fail+0x3bc/0x514 [ 60.682199][ T5071] __should_failslab+0xbc/0x10c [ 60.683028][ T5071] should_failslab+0x10/0x28 [ 60.683821][ T5071] slab_pre_alloc_hook+0x64/0xe8 [ 60.684690][ T5071] kmem_cache_alloc_trace+0x98/0x3ec [ 60.685563][ T5071] blk_iolatency_init+0x64/0x430 [ 60.686483][ T5071] blkcg_init_queue+0x3f0/0x484 [ 60.687334][ T5071] blk_alloc_queue+0x3cc/0x4a0 [ 60.688154][ T5071] __blk_mq_alloc_disk+0x5c/0x154 [ 60.689018][ T5071] loop_add+0x240/0x6e0 [ 60.689714][ T5071] loop_control_ioctl+0x130/0x4e0 [ 60.690523][ T5071] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.691476][ T5071] invoke_syscall+0x98/0x2b0 [ 60.692294][ T5071] el0_svc_common+0x138/0x258 [ 60.693212][ T5071] do_el0_svc+0x58/0x13c [ 60.693922][ T5071] el0_svc+0x78/0x1d0 [ 60.694650][ T5071] el0t_64_sync_handler+0xcc/0xe4 [ 60.695564][ T5071] el0t_64_sync+0x1a0/0x1a4 [ 60.705987][ T5073] FAULT_INJECTION: forcing a failure. [ 60.705987][ T5073] name failslab, interval 1, probability 0, space 0, times 0 [ 60.708179][ T5073] CPU: 1 PID: 5073 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.709722][ T5073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.711538][ T5073] Call trace: [ 60.712040][ T5073] dump_backtrace+0x0/0x458 [ 60.712781][ T5073] show_stack+0x2c/0x3c [ 60.713508][ T5073] __dump_stack+0x30/0x40 [ 60.714280][ T5073] dump_stack_lvl+0xf4/0x15c [ 60.715099][ T5073] dump_stack+0x1c/0x5c [ 60.715807][ T5073] should_fail+0x3bc/0x514 [ 60.716579][ T5073] __should_failslab+0xbc/0x10c [ 60.717463][ T5073] should_failslab+0x10/0x28 [ 60.718255][ T5073] slab_pre_alloc_hook+0x64/0xe8 [ 60.719083][ T5073] kmem_cache_alloc_node_trace+0x9c/0x424 [ 60.720099][ T5073] iolatency_pd_alloc+0xac/0x164 [ 60.720994][ T5073] blkcg_activate_policy+0x204/0xa8c [ 60.721867][ T5073] blk_iolatency_init+0x22c/0x430 [ 60.722691][ T5073] blkcg_init_queue+0x3f0/0x484 [ 60.723545][ T5073] blk_alloc_queue+0x3cc/0x4a0 [ 60.724323][ T5073] __blk_mq_alloc_disk+0x5c/0x154 [ 60.725195][ T5073] loop_add+0x240/0x6e0 [ 60.725906][ T5073] loop_control_ioctl+0x130/0x4e0 [ 60.726691][ T5073] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.727598][ T5073] invoke_syscall+0x98/0x2b0 [ 60.728396][ T5073] el0_svc_common+0x138/0x258 [ 60.729282][ T5073] do_el0_svc+0x58/0x13c [ 60.729955][ T5073] el0_svc+0x78/0x1d0 [ 60.730664][ T5073] el0t_64_sync_handler+0xcc/0xe4 [ 60.731575][ T5073] el0t_64_sync+0x1a0/0x1a4 [ 60.751431][ T5075] FAULT_INJECTION: forcing a failure. [ 60.751431][ T5075] name failslab, interval 1, probability 0, space 0, times 0 [ 60.754408][ T5075] CPU: 1 PID: 5075 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.755905][ T5075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.757598][ T5075] Call trace: [ 60.758125][ T5075] dump_backtrace+0x0/0x458 [ 60.758866][ T5075] show_stack+0x2c/0x3c [ 60.759525][ T5075] __dump_stack+0x30/0x40 [ 60.760195][ T5075] dump_stack_lvl+0xf4/0x15c [ 60.760940][ T5075] dump_stack+0x1c/0x5c [ 60.761631][ T5075] should_fail+0x3bc/0x514 [ 60.762390][ T5075] __should_failslab+0xbc/0x10c [ 60.763198][ T5075] should_failslab+0x10/0x28 [ 60.764007][ T5075] slab_pre_alloc_hook+0x64/0xe8 [ 60.764897][ T5075] __kmalloc_node+0xb8/0x508 [ 60.765611][ T5075] memcg_alloc_page_obj_cgroups+0x80/0x170 [ 60.766624][ T5075] new_slab+0x114/0x544 [ 60.767294][ T5075] ___slab_alloc+0x6b4/0xd8c [ 60.768170][ T5075] __slab_alloc+0x68/0xc0 [ 60.769009][ T5075] kmem_cache_alloc+0x2a4/0x3d4 [ 60.769816][ T5075] bdev_alloc_inode+0x24/0x60 [ 60.770639][ T5075] new_inode_pseudo+0x68/0x1fc [ 60.771477][ T5075] new_inode+0x38/0x174 [ 60.772158][ T5075] bdev_alloc+0x30/0x1f8 [ 60.772869][ T5075] __alloc_disk_node+0xbc/0x450 [ 60.773673][ T5075] __blk_mq_alloc_disk+0xe8/0x154 [ 60.774502][ T5075] loop_add+0x240/0x6e0 [ 60.775250][ T5075] loop_control_ioctl+0x130/0x4e0 [ 60.776108][ T5075] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.776902][ T5075] invoke_syscall+0x98/0x2b0 [ 60.777648][ T5075] el0_svc_common+0x138/0x258 [ 60.778477][ T5075] do_el0_svc+0x58/0x13c [ 60.779193][ T5075] el0_svc+0x78/0x1d0 [ 60.779880][ T5075] el0t_64_sync_handler+0xcc/0xe4 [ 60.780716][ T5075] el0t_64_sync+0x1a0/0x1a4 [ 60.798329][ T5077] FAULT_INJECTION: forcing a failure. [ 60.798329][ T5077] name failslab, interval 1, probability 0, space 0, times 0 [ 60.800325][ T5077] CPU: 0 PID: 5077 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.801749][ T5077] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.803374][ T5077] Call trace: [ 60.803877][ T5077] dump_backtrace+0x0/0x458 [ 60.804664][ T5077] show_stack+0x2c/0x3c [ 60.805380][ T5077] __dump_stack+0x30/0x40 [ 60.806190][ T5077] dump_stack_lvl+0xf4/0x15c [ 60.806943][ T5077] dump_stack+0x1c/0x5c [ 60.807651][ T5077] should_fail+0x3bc/0x514 [ 60.808396][ T5077] __should_failslab+0xbc/0x10c [ 60.809182][ T5077] should_failslab+0x10/0x28 [ 60.809974][ T5077] slab_pre_alloc_hook+0x64/0xe8 [ 60.810825][ T5077] __kmalloc_track_caller+0x70/0x358 [ 60.811739][ T5077] kstrdup+0xe4/0x15c [ 60.812389][ T5077] kstrdup_const+0x54/0x6c [ 60.813109][ T5077] kvasprintf_const+0x120/0x2e4 [ 60.813943][ T5077] kobject_set_name_vargs+0xd8/0x1c8 [ 60.814929][ T5077] dev_set_name+0xe8/0x13c [ 60.815619][ T5077] device_add_disk+0x258/0xacc [ 60.816397][ T5077] loop_add+0x510/0x6e0 [ 60.817130][ T5077] loop_control_ioctl+0x130/0x4e0 [ 60.817978][ T5077] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.818808][ T5077] invoke_syscall+0x98/0x2b0 [ 60.819592][ T5077] el0_svc_common+0x138/0x258 [ 60.820350][ T5077] do_el0_svc+0x58/0x13c [ 60.821051][ T5077] el0_svc+0x78/0x1d0 [ 60.821707][ T5077] el0t_64_sync_handler+0xcc/0xe4 [ 60.822544][ T5077] el0t_64_sync+0x1a0/0x1a4 [ 60.836426][ T5079] FAULT_INJECTION: forcing a failure. [ 60.836426][ T5079] name failslab, interval 1, probability 0, space 0, times 0 [ 60.838664][ T5079] CPU: 0 PID: 5079 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.840150][ T5079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.841802][ T5079] Call trace: [ 60.842380][ T5079] dump_backtrace+0x0/0x458 [ 60.843121][ T5079] show_stack+0x2c/0x3c [ 60.843814][ T5079] __dump_stack+0x30/0x40 [ 60.844496][ T5079] dump_stack_lvl+0xf4/0x15c [ 60.845258][ T5079] dump_stack+0x1c/0x5c [ 60.845925][ T5079] should_fail+0x3bc/0x514 [ 60.846683][ T5079] __should_failslab+0xbc/0x10c [ 60.847557][ T5079] should_failslab+0x10/0x28 [ 60.848335][ T5079] slab_pre_alloc_hook+0x64/0xe8 [ 60.849117][ T5079] kmem_cache_alloc+0x94/0x3d4 [ 60.849859][ T5079] __debug_object_init+0x6c4/0xa0c [ 60.850636][ T5079] debug_object_init+0x20/0x2c [ 60.851359][ T5079] __init_work+0x58/0x68 [ 60.852016][ T5079] wb_init+0x3dc/0x6e4 [ 60.852639][ T5079] bdi_init+0x1b4/0x2f4 [ 60.853289][ T5079] bdi_alloc+0x6c/0x144 [ 60.853958][ T5079] __alloc_disk_node+0x8c/0x450 [ 60.854765][ T5079] __blk_mq_alloc_disk+0xe8/0x154 [ 60.855551][ T5079] loop_add+0x240/0x6e0 [ 60.856254][ T5079] loop_control_ioctl+0x130/0x4e0 [ 60.857183][ T5079] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.858041][ T5079] invoke_syscall+0x98/0x2b0 [ 60.858748][ T5079] el0_svc_common+0x138/0x258 [ 60.859520][ T5079] do_el0_svc+0x58/0x13c [ 60.860122][ T5079] el0_svc+0x78/0x1d0 [ 60.860716][ T5079] el0t_64_sync_handler+0xcc/0xe4 [ 60.861575][ T5079] el0t_64_sync+0x1a0/0x1a4 [ 60.875141][ T5081] FAULT_INJECTION: forcing a failure. [ 60.875141][ T5081] name failslab, interval 1, probability 0, space 0, times 0 [ 60.877488][ T5081] CPU: 0 PID: 5081 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.879045][ T5081] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.880776][ T5081] Call trace: [ 60.881425][ T5081] dump_backtrace+0x0/0x458 [ 60.882191][ T5081] show_stack+0x2c/0x3c [ 60.882916][ T5081] __dump_stack+0x30/0x40 [ 60.883677][ T5081] dump_stack_lvl+0xf4/0x15c [ 60.884536][ T5081] dump_stack+0x1c/0x5c [ 60.885252][ T5081] should_fail+0x3bc/0x514 [ 60.886003][ T5081] __should_failslab+0xbc/0x10c [ 60.886756][ T5081] should_failslab+0x10/0x28 [ 60.887481][ T5081] slab_pre_alloc_hook+0x64/0xe8 [ 60.888369][ T5081] __kmalloc_track_caller+0x70/0x358 [ 60.889277][ T5081] kstrdup+0xe4/0x15c [ 60.889917][ T5081] kstrdup_const+0x54/0x6c [ 60.890637][ T5081] kvasprintf_const+0x120/0x2e4 [ 60.891507][ T5081] kobject_set_name_vargs+0xd8/0x1c8 [ 60.892402][ T5081] dev_set_name+0xe8/0x13c [ 60.893121][ T5081] device_add_disk+0x258/0xacc [ 60.893921][ T5081] loop_add+0x510/0x6e0 [ 60.894662][ T5081] loop_control_ioctl+0x130/0x4e0 [ 60.895497][ T5081] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.896366][ T5081] invoke_syscall+0x98/0x2b0 [ 60.897161][ T5081] el0_svc_common+0x138/0x258 [ 60.897948][ T5081] do_el0_svc+0x58/0x13c [ 60.898617][ T5081] el0_svc+0x78/0x1d0 [ 60.899202][ T5081] el0t_64_sync_handler+0xcc/0xe4 [ 60.899994][ T5081] el0t_64_sync+0x1a0/0x1a4 [ 60.910809][ T5083] FAULT_INJECTION: forcing a failure. [ 60.910809][ T5083] name failslab, interval 1, probability 0, space 0, times 0 [ 60.913110][ T5083] CPU: 0 PID: 5083 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.914475][ T5083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.916263][ T5083] Call trace: [ 60.916812][ T5083] dump_backtrace+0x0/0x458 [ 60.917677][ T5083] show_stack+0x2c/0x3c [ 60.918387][ T5083] __dump_stack+0x30/0x40 [ 60.919097][ T5083] dump_stack_lvl+0xf4/0x15c [ 60.919800][ T5083] dump_stack+0x1c/0x5c [ 60.920455][ T5083] should_fail+0x3bc/0x514 [ 60.921180][ T5083] __should_failslab+0xbc/0x10c [ 60.922010][ T5083] should_failslab+0x10/0x28 [ 60.922801][ T5083] slab_pre_alloc_hook+0x64/0xe8 [ 60.923751][ T5083] kmem_cache_alloc+0x94/0x3d4 [ 60.924561][ T5083] __debug_object_init+0x780/0xa0c [ 60.925409][ T5083] debug_object_init+0x20/0x2c [ 60.926195][ T5083] init_timer_key+0x54/0x410 [ 60.926969][ T5083] blk_stat_alloc_callback+0x164/0x1dc [ 60.927860][ T5083] blk_mq_init_allocated_queue+0x8c/0x158c [ 60.928834][ T5083] __blk_mq_alloc_disk+0x88/0x154 [ 60.929850][ T5083] loop_add+0x240/0x6e0 [ 60.930523][ T5083] loop_control_ioctl+0x130/0x4e0 [ 60.931326][ T5083] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.932239][ T5083] invoke_syscall+0x98/0x2b0 [ 60.933018][ T5083] el0_svc_common+0x138/0x258 [ 60.933843][ T5083] do_el0_svc+0x58/0x13c [ 60.934786][ T5083] el0_svc+0x78/0x1d0 [ 60.935458][ T5083] el0t_64_sync_handler+0xcc/0xe4 [ 60.936315][ T5083] el0t_64_sync+0x1a0/0x1a4 [ 60.949946][ T5085] FAULT_INJECTION: forcing a failure. [ 60.949946][ T5085] name failslab, interval 1, probability 0, space 0, times 0 [ 60.952437][ T5085] CPU: 1 PID: 5085 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.953887][ T5085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.955501][ T5085] Call trace: [ 60.956082][ T5085] dump_backtrace+0x0/0x458 [ 60.956809][ T5085] show_stack+0x2c/0x3c [ 60.957556][ T5085] __dump_stack+0x30/0x40 [ 60.958309][ T5085] dump_stack_lvl+0xf4/0x15c [ 60.958996][ T5085] dump_stack+0x1c/0x5c [ 60.959657][ T5085] should_fail+0x3bc/0x514 [ 60.960422][ T5085] __should_failslab+0xbc/0x10c [ 60.961189][ T5085] should_failslab+0x10/0x28 [ 60.961955][ T5085] slab_pre_alloc_hook+0x64/0xe8 [ 60.962780][ T5085] kmem_cache_alloc_trace+0x98/0x3ec [ 60.963652][ T5085] device_add+0xbc/0xf90 [ 60.964409][ T5085] device_add_disk+0x2d0/0xacc [ 60.965235][ T5085] loop_add+0x510/0x6e0 [ 60.965914][ T5085] loop_control_ioctl+0x130/0x4e0 [ 60.966738][ T5085] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.967511][ T5085] invoke_syscall+0x98/0x2b0 [ 60.968239][ T5085] el0_svc_common+0x138/0x258 [ 60.968978][ T5085] do_el0_svc+0x58/0x13c [ 60.969673][ T5085] el0_svc+0x78/0x1d0 [ 60.970302][ T5085] el0t_64_sync_handler+0xcc/0xe4 [ 60.971027][ T5085] el0t_64_sync+0x1a0/0x1a4 [ 60.980583][ T5087] FAULT_INJECTION: forcing a failure. [ 60.980583][ T5087] name failslab, interval 1, probability 0, space 0, times 0 [ 60.982959][ T5087] CPU: 1 PID: 5087 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 60.984399][ T5087] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 60.986066][ T5087] Call trace: [ 60.986601][ T5087] dump_backtrace+0x0/0x458 [ 60.987436][ T5087] show_stack+0x2c/0x3c [ 60.988147][ T5087] __dump_stack+0x30/0x40 [ 60.988844][ T5087] dump_stack_lvl+0xf4/0x15c [ 60.989606][ T5087] dump_stack+0x1c/0x5c [ 60.990287][ T5087] should_fail+0x3bc/0x514 [ 60.991019][ T5087] __should_failslab+0xbc/0x10c [ 60.991846][ T5087] should_failslab+0x10/0x28 [ 60.992632][ T5087] slab_pre_alloc_hook+0x64/0xe8 [ 60.993471][ T5087] kmem_cache_alloc_node_trace+0x9c/0x424 [ 60.994415][ T5087] iolatency_pd_alloc+0xac/0x164 [ 60.995179][ T5087] blkcg_activate_policy+0x204/0xa8c [ 60.996150][ T5087] blk_iolatency_init+0x22c/0x430 [ 60.996993][ T5087] blkcg_init_queue+0x3f0/0x484 [ 60.997810][ T5087] blk_alloc_queue+0x3cc/0x4a0 [ 60.998776][ T5087] __blk_mq_alloc_disk+0x5c/0x154 [ 60.999560][ T5087] loop_add+0x240/0x6e0 [ 61.000266][ T5087] loop_control_ioctl+0x130/0x4e0 [ 61.001131][ T5087] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.002025][ T5087] invoke_syscall+0x98/0x2b0 [ 61.002762][ T5087] el0_svc_common+0x138/0x258 [ 61.003502][ T5087] do_el0_svc+0x58/0x13c [ 61.004237][ T5087] el0_svc+0x78/0x1d0 [ 61.004869][ T5087] el0t_64_sync_handler+0xcc/0xe4 [ 61.005724][ T5087] el0t_64_sync+0x1a0/0x1a4 [ 61.018415][ T5089] FAULT_INJECTION: forcing a failure. [ 61.018415][ T5089] name failslab, interval 1, probability 0, space 0, times 0 [ 61.020632][ T5089] CPU: 1 PID: 5089 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.022150][ T5089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.023865][ T5089] Call trace: [ 61.024425][ T5089] dump_backtrace+0x0/0x458 [ 61.025229][ T5089] show_stack+0x2c/0x3c [ 61.025896][ T5089] __dump_stack+0x30/0x40 [ 61.026624][ T5089] dump_stack_lvl+0xf4/0x15c [ 61.027434][ T5089] dump_stack+0x1c/0x5c [ 61.028164][ T5089] should_fail+0x3bc/0x514 [ 61.028901][ T5089] __should_failslab+0xbc/0x10c [ 61.029744][ T5089] should_failslab+0x10/0x28 [ 61.030507][ T5089] slab_pre_alloc_hook+0x64/0xe8 [ 61.031381][ T5089] __kmalloc_track_caller+0x70/0x358 [ 61.032355][ T5089] kstrdup+0xe4/0x15c [ 61.033041][ T5089] kstrdup_const+0x54/0x6c [ 61.033768][ T5089] kvasprintf_const+0x120/0x2e4 [ 61.034569][ T5089] kobject_set_name_vargs+0xd8/0x1c8 [ 61.035375][ T5089] dev_set_name+0xe8/0x13c [ 61.036153][ T5089] device_add_disk+0x258/0xacc [ 61.036943][ T5089] loop_add+0x510/0x6e0 [ 61.037594][ T5089] loop_control_ioctl+0x130/0x4e0 [ 61.038503][ T5089] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.039408][ T5089] invoke_syscall+0x98/0x2b0 [ 61.040242][ T5089] el0_svc_common+0x138/0x258 [ 61.041122][ T5089] do_el0_svc+0x58/0x13c [ 61.041843][ T5089] el0_svc+0x78/0x1d0 [ 61.042523][ T5089] el0t_64_sync_handler+0xcc/0xe4 [ 61.043377][ T5089] el0t_64_sync+0x1a0/0x1a4 [ 61.052628][ T5091] FAULT_INJECTION: forcing a failure. [ 61.052628][ T5091] name failslab, interval 1, probability 0, space 0, times 0 [ 61.054762][ T5091] CPU: 1 PID: 5091 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.056285][ T5091] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.058071][ T5091] Call trace: [ 61.058631][ T5091] dump_backtrace+0x0/0x458 [ 61.059365][ T5091] show_stack+0x2c/0x3c [ 61.059985][ T5091] __dump_stack+0x30/0x40 [ 61.060642][ T5091] dump_stack_lvl+0xf4/0x15c [ 61.061386][ T5091] dump_stack+0x1c/0x5c [ 61.062064][ T5091] should_fail+0x3bc/0x514 [ 61.062825][ T5091] __should_failslab+0xbc/0x10c [ 61.063669][ T5091] should_failslab+0x10/0x28 [ 61.064426][ T5091] slab_pre_alloc_hook+0x64/0xe8 [ 61.065289][ T5091] kmem_cache_alloc_trace+0x98/0x3ec [ 61.066197][ T5091] blk_iolatency_init+0x64/0x430 [ 61.067061][ T5091] blkcg_init_queue+0x3f0/0x484 [ 61.067893][ T5091] blk_alloc_queue+0x3cc/0x4a0 [ 61.068748][ T5091] __blk_mq_alloc_disk+0x5c/0x154 [ 61.069726][ T5091] loop_add+0x240/0x6e0 [ 61.070428][ T5091] loop_control_ioctl+0x130/0x4e0 [ 61.071183][ T5091] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.072033][ T5091] invoke_syscall+0x98/0x2b0 [ 61.072822][ T5091] el0_svc_common+0x138/0x258 [ 61.073665][ T5091] do_el0_svc+0x58/0x13c [ 61.074372][ T5091] el0_svc+0x78/0x1d0 [ 61.075046][ T5091] el0t_64_sync_handler+0xcc/0xe4 [ 61.075994][ T5091] el0t_64_sync+0x1a0/0x1a4 [ 61.087380][ T5093] FAULT_INJECTION: forcing a failure. [ 61.087380][ T5093] name failslab, interval 1, probability 0, space 0, times 0 [ 61.089823][ T5093] CPU: 1 PID: 5093 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.091323][ T5093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.092979][ T5093] Call trace: [ 61.093547][ T5093] dump_backtrace+0x0/0x458 [ 61.094315][ T5093] show_stack+0x2c/0x3c [ 61.095078][ T5093] __dump_stack+0x30/0x40 [ 61.095938][ T5093] dump_stack_lvl+0xf4/0x15c [ 61.096773][ T5093] dump_stack+0x1c/0x5c [ 61.097531][ T5093] should_fail+0x3bc/0x514 [ 61.098332][ T5093] __should_failslab+0xbc/0x10c [ 61.099236][ T5093] should_failslab+0x10/0x28 [ 61.100051][ T5093] slab_pre_alloc_hook+0x64/0xe8 [ 61.101006][ T5093] kmem_cache_alloc_trace+0x98/0x3ec [ 61.101956][ T5093] rand_initialize_disk+0x58/0xb8 [ 61.102824][ T5093] __alloc_disk_node+0x2a8/0x450 [ 61.103602][ T5093] __blk_mq_alloc_disk+0xe8/0x154 [ 61.104370][ T5093] loop_add+0x240/0x6e0 [ 61.105052][ T5093] loop_control_ioctl+0x130/0x4e0 [ 61.105813][ T5093] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.106605][ T5093] invoke_syscall+0x98/0x2b0 [ 61.107323][ T5093] el0_svc_common+0x138/0x258 [ 61.108111][ T5093] do_el0_svc+0x58/0x13c [ 61.108837][ T5093] el0_svc+0x78/0x1d0 [ 61.109508][ T5093] el0t_64_sync_handler+0xcc/0xe4 [ 61.110373][ T5093] el0t_64_sync+0x1a0/0x1a4 [ 61.122660][ T5095] FAULT_INJECTION: forcing a failure. [ 61.122660][ T5095] name failslab, interval 1, probability 0, space 0, times 0 [ 61.125053][ T5095] CPU: 0 PID: 5095 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.126546][ T5095] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.128343][ T5095] Call trace: [ 61.128901][ T5095] dump_backtrace+0x0/0x458 [ 61.129672][ T5095] show_stack+0x2c/0x3c [ 61.130400][ T5095] __dump_stack+0x30/0x40 [ 61.131136][ T5095] dump_stack_lvl+0xf4/0x15c [ 61.131916][ T5095] dump_stack+0x1c/0x5c [ 61.132602][ T5095] should_fail+0x3bc/0x514 [ 61.133356][ T5095] __should_failslab+0xbc/0x10c [ 61.134161][ T5095] should_failslab+0x10/0x28 [ 61.134962][ T5095] slab_pre_alloc_hook+0x64/0xe8 [ 61.135811][ T5095] __kmalloc_track_caller+0x70/0x358 [ 61.136658][ T5095] kstrdup+0xe4/0x15c [ 61.137355][ T5095] kstrdup_const+0x54/0x6c [ 61.138074][ T5095] kvasprintf_const+0x120/0x2e4 [ 61.138868][ T5095] kobject_set_name_vargs+0xd8/0x1c8 [ 61.139678][ T5095] dev_set_name+0xe8/0x13c [ 61.140419][ T5095] device_add_disk+0x258/0xacc [ 61.141149][ T5095] loop_add+0x510/0x6e0 [ 61.141788][ T5095] loop_control_ioctl+0x130/0x4e0 [ 61.142632][ T5095] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.143482][ T5095] invoke_syscall+0x98/0x2b0 [ 61.144267][ T5095] el0_svc_common+0x138/0x258 [ 61.145015][ T5095] do_el0_svc+0x58/0x13c [ 61.145732][ T5095] el0_svc+0x78/0x1d0 [ 61.146405][ T5095] el0t_64_sync_handler+0xcc/0xe4 [ 61.147173][ T5095] el0t_64_sync+0x1a0/0x1a4 [ 61.158358][ T5097] FAULT_INJECTION: forcing a failure. [ 61.158358][ T5097] name failslab, interval 1, probability 0, space 0, times 0 [ 61.160559][ T5097] CPU: 0 PID: 5097 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.162010][ T5097] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.163712][ T5097] Call trace: [ 61.164311][ T5097] dump_backtrace+0x0/0x458 [ 61.165037][ T5097] show_stack+0x2c/0x3c [ 61.165814][ T5097] __dump_stack+0x30/0x40 [ 61.166557][ T5097] dump_stack_lvl+0xf4/0x15c [ 61.167287][ T5097] dump_stack+0x1c/0x5c [ 61.167979][ T5097] should_fail+0x3bc/0x514 [ 61.168725][ T5097] __should_failslab+0xbc/0x10c [ 61.169556][ T5097] should_failslab+0x10/0x28 [ 61.170292][ T5097] slab_pre_alloc_hook+0x64/0xe8 [ 61.171109][ T5097] kmem_cache_alloc_trace+0x98/0x3ec [ 61.171933][ T5097] rand_initialize_disk+0x58/0xb8 [ 61.172784][ T5097] __alloc_disk_node+0x2a8/0x450 [ 61.173657][ T5097] __blk_mq_alloc_disk+0xe8/0x154 [ 61.174546][ T5097] loop_add+0x240/0x6e0 [ 61.175248][ T5097] loop_control_ioctl+0x130/0x4e0 [ 61.176131][ T5097] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.176952][ T5097] invoke_syscall+0x98/0x2b0 [ 61.177682][ T5097] el0_svc_common+0x138/0x258 [ 61.178429][ T5097] do_el0_svc+0x58/0x13c [ 61.179174][ T5097] el0_svc+0x78/0x1d0 [ 61.179855][ T5097] el0t_64_sync_handler+0xcc/0xe4 [ 61.180767][ T5097] el0t_64_sync+0x1a0/0x1a4 [ 61.195764][ T5099] FAULT_INJECTION: forcing a failure. [ 61.195764][ T5099] name failslab, interval 1, probability 0, space 0, times 0 [ 61.198208][ T5099] CPU: 1 PID: 5099 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.199765][ T5099] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.201525][ T5099] Call trace: [ 61.202116][ T5099] dump_backtrace+0x0/0x458 [ 61.202933][ T5099] show_stack+0x2c/0x3c [ 61.203641][ T5099] __dump_stack+0x30/0x40 [ 61.204336][ T5099] dump_stack_lvl+0xf4/0x15c [ 61.205145][ T5099] dump_stack+0x1c/0x5c [ 61.205860][ T5099] should_fail+0x3bc/0x514 [ 61.206553][ T5099] __should_failslab+0xbc/0x10c [ 61.207380][ T5099] should_failslab+0x10/0x28 [ 61.208152][ T5099] slab_pre_alloc_hook+0x64/0xe8 [ 61.208982][ T5099] kmem_cache_alloc+0x94/0x3d4 [ 61.209772][ T5099] security_inode_alloc+0x38/0x11c [ 61.210664][ T5099] inode_init_always+0x670/0xa84 [ 61.211454][ T5099] new_inode_pseudo+0x7c/0x1fc [ 61.212294][ T5099] new_inode+0x38/0x174 [ 61.212995][ T5099] bdev_alloc+0x30/0x1f8 [ 61.213802][ T5099] __alloc_disk_node+0xbc/0x450 [ 61.214570][ T5099] __blk_mq_alloc_disk+0xe8/0x154 [ 61.215492][ T5099] loop_add+0x240/0x6e0 [ 61.216186][ T5099] loop_control_ioctl+0x130/0x4e0 [ 61.217057][ T5099] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.217878][ T5099] invoke_syscall+0x98/0x2b0 [ 61.218749][ T5099] el0_svc_common+0x138/0x258 [ 61.219522][ T5099] do_el0_svc+0x58/0x13c [ 61.220180][ T5099] el0_svc+0x78/0x1d0 [ 61.220864][ T5099] el0t_64_sync_handler+0xcc/0xe4 [ 61.221770][ T5099] el0t_64_sync+0x1a0/0x1a4 [ 61.232369][ T5101] FAULT_INJECTION: forcing a failure. [ 61.232369][ T5101] name failslab, interval 1, probability 0, space 0, times 0 [ 61.234534][ T5101] CPU: 1 PID: 5101 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.235955][ T5101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.237440][ T5101] Call trace: [ 61.237927][ T5101] dump_backtrace+0x0/0x458 [ 61.238694][ T5101] show_stack+0x2c/0x3c [ 61.239367][ T5101] __dump_stack+0x30/0x40 [ 61.240061][ T5101] dump_stack_lvl+0xf4/0x15c [ 61.240839][ T5101] dump_stack+0x1c/0x5c [ 61.241403][ T5101] should_fail+0x3bc/0x514 [ 61.242170][ T5101] __should_failslab+0xbc/0x10c [ 61.243044][ T5101] should_failslab+0x10/0x28 [ 61.243843][ T5101] slab_pre_alloc_hook+0x64/0xe8 [ 61.244671][ T5101] __kmalloc_track_caller+0x70/0x358 [ 61.245519][ T5101] kstrdup+0xe4/0x15c [ 61.246104][ T5101] kstrdup_const+0x54/0x6c [ 61.246809][ T5101] kvasprintf_const+0x120/0x2e4 [ 61.247629][ T5101] kobject_set_name_vargs+0xd8/0x1c8 [ 61.248485][ T5101] dev_set_name+0xe8/0x13c [ 61.249271][ T5101] device_add_disk+0x258/0xacc [ 61.250076][ T5101] loop_add+0x510/0x6e0 [ 61.250838][ T5101] loop_control_ioctl+0x130/0x4e0 [ 61.251672][ T5101] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.252469][ T5101] invoke_syscall+0x98/0x2b0 [ 61.253223][ T5101] el0_svc_common+0x138/0x258 [ 61.254050][ T5101] do_el0_svc+0x58/0x13c [ 61.254777][ T5101] el0_svc+0x78/0x1d0 [ 61.255472][ T5101] el0t_64_sync_handler+0xcc/0xe4 [ 61.256311][ T5101] el0t_64_sync+0x1a0/0x1a4 [ 61.266040][ T5103] FAULT_INJECTION: forcing a failure. [ 61.266040][ T5103] name failslab, interval 1, probability 0, space 0, times 0 [ 61.268218][ T5103] CPU: 1 PID: 5103 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.269744][ T5103] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.271508][ T5103] Call trace: [ 61.272000][ T5103] dump_backtrace+0x0/0x458 [ 61.272691][ T5103] show_stack+0x2c/0x3c [ 61.273409][ T5103] __dump_stack+0x30/0x40 [ 61.274090][ T5103] dump_stack_lvl+0xf4/0x15c [ 61.274869][ T5103] dump_stack+0x1c/0x5c [ 61.275543][ T5103] should_fail+0x3bc/0x514 [ 61.276284][ T5103] __should_failslab+0xbc/0x10c [ 61.277101][ T5103] should_failslab+0x10/0x28 [ 61.277841][ T5103] slab_pre_alloc_hook+0x64/0xe8 [ 61.278707][ T5103] __kmalloc_track_caller+0x70/0x358 [ 61.279559][ T5103] kstrdup+0xe4/0x15c [ 61.280234][ T5103] kstrdup_const+0x54/0x6c [ 61.280980][ T5103] kvasprintf_const+0x120/0x2e4 [ 61.281776][ T5103] kobject_set_name_vargs+0xd8/0x1c8 [ 61.282633][ T5103] dev_set_name+0xe8/0x13c [ 61.283341][ T5103] device_add_disk+0x258/0xacc [ 61.284131][ T5103] loop_add+0x510/0x6e0 [ 61.284868][ T5103] loop_control_ioctl+0x130/0x4e0 [ 61.285770][ T5103] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.286629][ T5103] invoke_syscall+0x98/0x2b0 [ 61.287367][ T5103] el0_svc_common+0x138/0x258 [ 61.288187][ T5103] do_el0_svc+0x58/0x13c [ 61.288931][ T5103] el0_svc+0x78/0x1d0 [ 61.289655][ T5103] el0t_64_sync_handler+0xcc/0xe4 [ 61.290561][ T5103] el0t_64_sync+0x1a0/0x1a4 [ 61.299996][ T5105] FAULT_INJECTION: forcing a failure. [ 61.299996][ T5105] name failslab, interval 1, probability 0, space 0, times 0 [ 61.303094][ T5105] CPU: 1 PID: 5105 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.304600][ T5105] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.306387][ T5105] Call trace: [ 61.306898][ T5105] dump_backtrace+0x0/0x458 [ 61.307708][ T5105] show_stack+0x2c/0x3c [ 61.308462][ T5105] __dump_stack+0x30/0x40 [ 61.309168][ T5105] dump_stack_lvl+0xf4/0x15c [ 61.310000][ T5105] dump_stack+0x1c/0x5c [ 61.310677][ T5105] should_fail+0x3bc/0x514 [ 61.311422][ T5105] __should_failslab+0xbc/0x10c [ 61.312235][ T5105] should_failslab+0x10/0x28 [ 61.312961][ T5105] slab_pre_alloc_hook+0x64/0xe8 [ 61.313748][ T5105] kmem_cache_alloc_trace+0x98/0x3ec [ 61.314636][ T5105] blk_iolatency_init+0x64/0x430 [ 61.315500][ T5105] blkcg_init_queue+0x3f0/0x484 [ 61.316341][ T5105] blk_alloc_queue+0x3cc/0x4a0 [ 61.317134][ T5105] __blk_mq_alloc_disk+0x5c/0x154 [ 61.317953][ T5105] loop_add+0x240/0x6e0 [ 61.318638][ T5105] loop_control_ioctl+0x130/0x4e0 [ 61.319565][ T5105] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.320394][ T5105] invoke_syscall+0x98/0x2b0 [ 61.321151][ T5105] el0_svc_common+0x138/0x258 [ 61.321941][ T5105] do_el0_svc+0x58/0x13c [ 61.322686][ T5105] el0_svc+0x78/0x1d0 [ 61.323380][ T5105] el0t_64_sync_handler+0xcc/0xe4 [ 61.324240][ T5105] el0t_64_sync+0x1a0/0x1a4 [ 61.335235][ T5107] FAULT_INJECTION: forcing a failure. [ 61.335235][ T5107] name failslab, interval 1, probability 0, space 0, times 0 [ 61.337563][ T5107] CPU: 0 PID: 5107 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.339112][ T5107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.340943][ T5107] Call trace: [ 61.341504][ T5107] dump_backtrace+0x0/0x458 [ 61.342303][ T5107] show_stack+0x2c/0x3c [ 61.343015][ T5107] __dump_stack+0x30/0x40 [ 61.343765][ T5107] dump_stack_lvl+0xf4/0x15c [ 61.344588][ T5107] dump_stack+0x1c/0x5c [ 61.345268][ T5107] should_fail+0x3bc/0x514 [ 61.346034][ T5107] __should_failslab+0xbc/0x10c [ 61.346887][ T5107] should_failslab+0x10/0x28 [ 61.347635][ T5107] slab_pre_alloc_hook+0x64/0xe8 [ 61.348436][ T5107] kmem_cache_alloc_trace+0x98/0x3ec [ 61.349194][ T5107] rand_initialize_disk+0x58/0xb8 [ 61.350111][ T5107] __alloc_disk_node+0x2a8/0x450 [ 61.350953][ T5107] __blk_mq_alloc_disk+0xe8/0x154 [ 61.351768][ T5107] loop_add+0x240/0x6e0 [ 61.352520][ T5107] loop_control_ioctl+0x130/0x4e0 [ 61.353389][ T5107] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.354247][ T5107] invoke_syscall+0x98/0x2b0 [ 61.355032][ T5107] el0_svc_common+0x138/0x258 [ 61.355784][ T5107] do_el0_svc+0x58/0x13c [ 61.356464][ T5107] el0_svc+0x78/0x1d0 [ 61.357159][ T5107] el0t_64_sync_handler+0xcc/0xe4 [ 61.357953][ T5107] el0t_64_sync+0x1a0/0x1a4 [ 61.370029][ T5109] FAULT_INJECTION: forcing a failure. [ 61.370029][ T5109] name failslab, interval 1, probability 0, space 0, times 0 [ 61.372852][ T5109] CPU: 1 PID: 5109 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.374446][ T5109] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.376196][ T5109] Call trace: [ 61.376764][ T5109] dump_backtrace+0x0/0x458 [ 61.377558][ T5109] show_stack+0x2c/0x3c [ 61.378249][ T5109] __dump_stack+0x30/0x40 [ 61.378990][ T5109] dump_stack_lvl+0xf4/0x15c [ 61.379843][ T5109] dump_stack+0x1c/0x5c [ 61.380511][ T5109] should_fail+0x3bc/0x514 [ 61.381260][ T5109] __should_failslab+0xbc/0x10c [ 61.382087][ T5109] should_failslab+0x10/0x28 [ 61.382838][ T5109] slab_pre_alloc_hook+0x64/0xe8 [ 61.383663][ T5109] kmem_cache_alloc_trace+0x98/0x3ec [ 61.384617][ T5109] device_add+0xbc/0xf90 [ 61.385325][ T5109] device_add_disk+0x2d0/0xacc [ 61.386086][ T5109] loop_add+0x510/0x6e0 [ 61.386821][ T5109] loop_control_ioctl+0x130/0x4e0 [ 61.387660][ T5109] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.388480][ T5109] invoke_syscall+0x98/0x2b0 [ 61.389242][ T5109] el0_svc_common+0x138/0x258 [ 61.390023][ T5109] do_el0_svc+0x58/0x13c [ 61.390764][ T5109] el0_svc+0x78/0x1d0 [ 61.391434][ T5109] el0t_64_sync_handler+0xcc/0xe4 [ 61.392289][ T5109] el0t_64_sync+0x1a0/0x1a4 [ 61.403072][ T5111] FAULT_INJECTION: forcing a failure. [ 61.403072][ T5111] name failslab, interval 1, probability 0, space 0, times 0 [ 61.405346][ T5111] CPU: 1 PID: 5111 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.406844][ T5111] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.408611][ T5111] Call trace: [ 61.409168][ T5111] dump_backtrace+0x0/0x458 [ 61.409839][ T5111] show_stack+0x2c/0x3c [ 61.410513][ T5111] __dump_stack+0x30/0x40 [ 61.411247][ T5111] dump_stack_lvl+0xf4/0x15c [ 61.412001][ T5111] dump_stack+0x1c/0x5c [ 61.412705][ T5111] should_fail+0x3bc/0x514 [ 61.413402][ T5111] __should_failslab+0xbc/0x10c [ 61.414243][ T5111] should_failslab+0x10/0x28 [ 61.415043][ T5111] slab_pre_alloc_hook+0x64/0xe8 [ 61.415882][ T5111] kmem_cache_alloc+0x94/0x3d4 [ 61.416718][ T5111] security_inode_alloc+0x38/0x11c [ 61.417633][ T5111] inode_init_always+0x670/0xa84 [ 61.418473][ T5111] new_inode_pseudo+0x7c/0x1fc [ 61.419256][ T5111] new_inode+0x38/0x174 [ 61.419969][ T5111] bdev_alloc+0x30/0x1f8 [ 61.420712][ T5111] __alloc_disk_node+0xbc/0x450 [ 61.421554][ T5111] __blk_mq_alloc_disk+0xe8/0x154 [ 61.422424][ T5111] loop_add+0x240/0x6e0 [ 61.423161][ T5111] loop_control_ioctl+0x130/0x4e0 [ 61.424065][ T5111] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.424907][ T5111] invoke_syscall+0x98/0x2b0 [ 61.425700][ T5111] el0_svc_common+0x138/0x258 [ 61.426485][ T5111] do_el0_svc+0x58/0x13c [ 61.427192][ T5111] el0_svc+0x78/0x1d0 [ 61.427882][ T5111] el0t_64_sync_handler+0xcc/0xe4 [ 61.428678][ T5111] el0t_64_sync+0x1a0/0x1a4 [ 61.439003][ T5113] FAULT_INJECTION: forcing a failure. [ 61.439003][ T5113] name failslab, interval 1, probability 0, space 0, times 0 [ 61.441340][ T5113] CPU: 0 PID: 5113 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.443005][ T5113] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.444761][ T5113] Call trace: [ 61.445363][ T5113] dump_backtrace+0x0/0x458 [ 61.446235][ T5113] show_stack+0x2c/0x3c [ 61.446948][ T5113] __dump_stack+0x30/0x40 [ 61.447707][ T5113] dump_stack_lvl+0xf4/0x15c [ 61.448414][ T5113] dump_stack+0x1c/0x5c [ 61.449074][ T5113] should_fail+0x3bc/0x514 [ 61.449768][ T5113] __should_failslab+0xbc/0x10c [ 61.450574][ T5113] should_failslab+0x10/0x28 [ 61.451363][ T5113] slab_pre_alloc_hook+0x64/0xe8 [ 61.452220][ T5113] __kmalloc_track_caller+0x70/0x358 [ 61.453161][ T5113] kstrdup+0xe4/0x15c [ 61.453869][ T5113] kstrdup_const+0x54/0x6c [ 61.454588][ T5113] kvasprintf_const+0x120/0x2e4 [ 61.455366][ T5113] kobject_set_name_vargs+0xd8/0x1c8 [ 61.456256][ T5113] dev_set_name+0xe8/0x13c [ 61.457006][ T5113] device_add_disk+0x258/0xacc [ 61.457765][ T5113] loop_add+0x510/0x6e0 [ 61.458499][ T5113] loop_control_ioctl+0x130/0x4e0 [ 61.459309][ T5113] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.460104][ T5113] invoke_syscall+0x98/0x2b0 [ 61.460838][ T5113] el0_svc_common+0x138/0x258 [ 61.461588][ T5113] do_el0_svc+0x58/0x13c [ 61.462230][ T5113] el0_svc+0x78/0x1d0 [ 61.462899][ T5113] el0t_64_sync_handler+0xcc/0xe4 [ 61.463706][ T5113] el0t_64_sync+0x1a0/0x1a4 [ 61.475325][ T5115] FAULT_INJECTION: forcing a failure. [ 61.475325][ T5115] name failslab, interval 1, probability 0, space 0, times 0 [ 61.477575][ T5115] CPU: 1 PID: 5115 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.479147][ T5115] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.480943][ T5115] Call trace: [ 61.481484][ T5115] dump_backtrace+0x0/0x458 [ 61.482224][ T5115] show_stack+0x2c/0x3c [ 61.482933][ T5115] __dump_stack+0x30/0x40 [ 61.483647][ T5115] dump_stack_lvl+0xf4/0x15c [ 61.484408][ T5115] dump_stack+0x1c/0x5c [ 61.485100][ T5115] should_fail+0x3bc/0x514 [ 61.485838][ T5115] __should_failslab+0xbc/0x10c [ 61.486678][ T5115] should_failslab+0x10/0x28 [ 61.487476][ T5115] slab_pre_alloc_hook+0x64/0xe8 [ 61.488393][ T5115] __kmalloc_track_caller+0x70/0x358 [ 61.489254][ T5115] kstrdup+0xe4/0x15c [ 61.489918][ T5115] kstrdup_const+0x54/0x6c [ 61.490667][ T5115] kvasprintf_const+0x120/0x2e4 [ 61.491476][ T5115] kobject_set_name_vargs+0xd8/0x1c8 [ 61.492430][ T5115] dev_set_name+0xe8/0x13c [ 61.493139][ T5115] device_add_disk+0x258/0xacc [ 61.493957][ T5115] loop_add+0x510/0x6e0 [ 61.494712][ T5115] loop_control_ioctl+0x130/0x4e0 [ 61.495553][ T5115] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.496413][ T5115] invoke_syscall+0x98/0x2b0 [ 61.497238][ T5115] el0_svc_common+0x138/0x258 [ 61.498008][ T5115] do_el0_svc+0x58/0x13c [ 61.498678][ T5115] el0_svc+0x78/0x1d0 [ 61.499359][ T5115] el0t_64_sync_handler+0xcc/0xe4 [ 61.500231][ T5115] el0t_64_sync+0x1a0/0x1a4 [ 61.511331][ T5117] FAULT_INJECTION: forcing a failure. [ 61.511331][ T5117] name failslab, interval 1, probability 0, space 0, times 0 [ 61.513665][ T5117] CPU: 0 PID: 5117 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.515146][ T5117] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.516894][ T5117] Call trace: [ 61.517438][ T5117] dump_backtrace+0x0/0x458 [ 61.518252][ T5117] show_stack+0x2c/0x3c [ 61.518954][ T5117] __dump_stack+0x30/0x40 [ 61.519681][ T5117] dump_stack_lvl+0xf4/0x15c [ 61.520466][ T5117] dump_stack+0x1c/0x5c [ 61.521146][ T5117] should_fail+0x3bc/0x514 [ 61.521907][ T5117] __should_failslab+0xbc/0x10c [ 61.522709][ T5117] should_failslab+0x10/0x28 [ 61.523526][ T5117] slab_pre_alloc_hook+0x64/0xe8 [ 61.524376][ T5117] kmem_cache_alloc_trace+0x98/0x3ec [ 61.525305][ T5117] device_add+0xbc/0xf90 [ 61.526012][ T5117] device_add_disk+0x2d0/0xacc [ 61.526787][ T5117] loop_add+0x510/0x6e0 [ 61.527457][ T5117] loop_control_ioctl+0x130/0x4e0 [ 61.528298][ T5117] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.529152][ T5117] invoke_syscall+0x98/0x2b0 [ 61.529907][ T5117] el0_svc_common+0x138/0x258 [ 61.530695][ T5117] do_el0_svc+0x58/0x13c [ 61.531424][ T5117] el0_svc+0x78/0x1d0 [ 61.532133][ T5117] el0t_64_sync_handler+0xcc/0xe4 [ 61.533021][ T5117] el0t_64_sync+0x1a0/0x1a4 [ 61.544093][ T5119] FAULT_INJECTION: forcing a failure. [ 61.544093][ T5119] name failslab, interval 1, probability 0, space 0, times 0 [ 61.546078][ T5119] CPU: 0 PID: 5119 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.547548][ T5119] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.549268][ T5119] Call trace: [ 61.549761][ T5119] dump_backtrace+0x0/0x458 [ 61.550575][ T5119] show_stack+0x2c/0x3c [ 61.551296][ T5119] __dump_stack+0x30/0x40 [ 61.552093][ T5119] dump_stack_lvl+0xf4/0x15c [ 61.552889][ T5119] dump_stack+0x1c/0x5c [ 61.553600][ T5119] should_fail+0x3bc/0x514 [ 61.554371][ T5119] __should_failslab+0xbc/0x10c [ 61.555085][ T5119] should_failslab+0x10/0x28 [ 61.555868][ T5119] slab_pre_alloc_hook+0x64/0xe8 [ 61.556811][ T5119] kmem_cache_alloc_trace+0x98/0x3ec [ 61.557668][ T5119] rand_initialize_disk+0x58/0xb8 [ 61.558544][ T5119] __alloc_disk_node+0x2a8/0x450 [ 61.559321][ T5119] __blk_mq_alloc_disk+0xe8/0x154 [ 61.560128][ T5119] loop_add+0x240/0x6e0 [ 61.560898][ T5119] loop_control_ioctl+0x130/0x4e0 [ 61.561744][ T5119] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.562558][ T5119] invoke_syscall+0x98/0x2b0 [ 61.563263][ T5119] el0_svc_common+0x138/0x258 [ 61.564009][ T5119] do_el0_svc+0x58/0x13c [ 61.564721][ T5119] el0_svc+0x78/0x1d0 [ 61.565371][ T5119] el0t_64_sync_handler+0xcc/0xe4 [ 61.566249][ T5119] el0t_64_sync+0x1a0/0x1a4 [ 61.578105][ T5121] FAULT_INJECTION: forcing a failure. [ 61.578105][ T5121] name failslab, interval 1, probability 0, space 0, times 0 [ 61.580335][ T5121] CPU: 1 PID: 5121 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.581898][ T5121] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.583599][ T5121] Call trace: [ 61.584178][ T5121] dump_backtrace+0x0/0x458 [ 61.584959][ T5121] show_stack+0x2c/0x3c [ 61.585763][ T5121] __dump_stack+0x30/0x40 [ 61.586521][ T5121] dump_stack_lvl+0xf4/0x15c [ 61.587312][ T5121] dump_stack+0x1c/0x5c [ 61.588008][ T5121] should_fail+0x3bc/0x514 [ 61.588842][ T5121] __should_failslab+0xbc/0x10c [ 61.589664][ T5121] should_failslab+0x10/0x28 [ 61.590382][ T5121] slab_pre_alloc_hook+0x64/0xe8 [ 61.591224][ T5121] kmem_cache_alloc_node_trace+0x9c/0x424 [ 61.592182][ T5121] iolatency_pd_alloc+0xac/0x164 [ 61.593043][ T5121] blkcg_activate_policy+0x204/0xa8c [ 61.593899][ T5121] blk_iolatency_init+0x22c/0x430 [ 61.594767][ T5121] blkcg_init_queue+0x3f0/0x484 [ 61.595553][ T5121] blk_alloc_queue+0x3cc/0x4a0 [ 61.596356][ T5121] __blk_mq_alloc_disk+0x5c/0x154 [ 61.597267][ T5121] loop_add+0x240/0x6e0 [ 61.597914][ T5121] loop_control_ioctl+0x130/0x4e0 [ 61.598699][ T5121] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.599524][ T5121] invoke_syscall+0x98/0x2b0 [ 61.600330][ T5121] el0_svc_common+0x138/0x258 [ 61.601187][ T5121] do_el0_svc+0x58/0x13c [ 61.601929][ T5121] el0_svc+0x78/0x1d0 [ 61.602583][ T5121] el0t_64_sync_handler+0xcc/0xe4 [ 61.603398][ T5121] el0t_64_sync+0x1a0/0x1a4 [ 61.616220][ T5123] FAULT_INJECTION: forcing a failure. [ 61.616220][ T5123] name failslab, interval 1, probability 0, space 0, times 0 [ 61.618376][ T5123] CPU: 0 PID: 5123 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.620014][ T5123] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.621696][ T5123] Call trace: [ 61.622200][ T5123] dump_backtrace+0x0/0x458 [ 61.622952][ T5123] show_stack+0x2c/0x3c [ 61.623678][ T5123] __dump_stack+0x30/0x40 [ 61.624486][ T5123] dump_stack_lvl+0xf4/0x15c [ 61.625243][ T5123] dump_stack+0x1c/0x5c [ 61.625902][ T5123] should_fail+0x3bc/0x514 [ 61.626610][ T5123] __should_failslab+0xbc/0x10c [ 61.627399][ T5123] should_failslab+0x10/0x28 [ 61.628160][ T5123] slab_pre_alloc_hook+0x64/0xe8 [ 61.628979][ T5123] kmem_cache_alloc+0x94/0x3d4 [ 61.629800][ T5123] __debug_object_init+0x688/0xa0c [ 61.630678][ T5123] debug_object_init+0x20/0x2c [ 61.631467][ T5123] __percpu_counter_init+0x10c/0x26c [ 61.632341][ T5123] blkg_rwstat_init+0x3c/0x2b8 [ 61.633195][ T5123] throtl_pd_alloc+0xf0/0x4ec [ 61.633956][ T5123] blkcg_activate_policy+0x204/0xa8c [ 61.634884][ T5123] blk_throtl_init+0x308/0x3ec [ 61.635737][ T5123] blkcg_init_queue+0x3cc/0x484 [ 61.636598][ T5123] blk_alloc_queue+0x3cc/0x4a0 [ 61.637432][ T5123] __blk_mq_alloc_disk+0x5c/0x154 [ 61.638285][ T5123] loop_add+0x240/0x6e0 [ 61.639047][ T5123] loop_control_ioctl+0x130/0x4e0 [ 61.639900][ T5123] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.640709][ T5123] invoke_syscall+0x98/0x2b0 [ 61.641477][ T5123] el0_svc_common+0x138/0x258 [ 61.642276][ T5123] do_el0_svc+0x58/0x13c [ 61.642949][ T5123] el0_svc+0x78/0x1d0 [ 61.643630][ T5123] el0t_64_sync_handler+0xcc/0xe4 [ 61.644486][ T5123] el0t_64_sync+0x1a0/0x1a4 [ 61.656996][ T5125] FAULT_INJECTION: forcing a failure. [ 61.656996][ T5125] name failslab, interval 1, probability 0, space 0, times 0 [ 61.659320][ T5125] CPU: 1 PID: 5125 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.660925][ T5125] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.662651][ T5125] Call trace: [ 61.663306][ T5125] dump_backtrace+0x0/0x458 [ 61.664057][ T5125] show_stack+0x2c/0x3c [ 61.664733][ T5125] __dump_stack+0x30/0x40 [ 61.665487][ T5125] dump_stack_lvl+0xf4/0x15c [ 61.666268][ T5125] dump_stack+0x1c/0x5c [ 61.666950][ T5125] should_fail+0x3bc/0x514 [ 61.667672][ T5125] __should_failslab+0xbc/0x10c [ 61.668451][ T5125] should_failslab+0x10/0x28 [ 61.669176][ T5125] slab_pre_alloc_hook+0x64/0xe8 [ 61.670003][ T5125] kmem_cache_alloc+0x94/0x3d4 [ 61.670859][ T5125] security_inode_alloc+0x38/0x11c [ 61.671727][ T5125] inode_init_always+0x670/0xa84 [ 61.672599][ T5125] new_inode_pseudo+0x7c/0x1fc [ 61.673384][ T5125] new_inode+0x38/0x174 [ 61.674000][ T5125] bdev_alloc+0x30/0x1f8 [ 61.674764][ T5125] __alloc_disk_node+0xbc/0x450 [ 61.675578][ T5125] __blk_mq_alloc_disk+0xe8/0x154 [ 61.676412][ T5125] loop_add+0x240/0x6e0 [ 61.677118][ T5125] loop_control_ioctl+0x130/0x4e0 [ 61.677930][ T5125] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.678763][ T5125] invoke_syscall+0x98/0x2b0 [ 61.679586][ T5125] el0_svc_common+0x138/0x258 [ 61.680381][ T5125] do_el0_svc+0x58/0x13c [ 61.681104][ T5125] el0_svc+0x78/0x1d0 [ 61.681760][ T5125] el0t_64_sync_handler+0xcc/0xe4 [ 61.682578][ T5125] el0t_64_sync+0x1a0/0x1a4 [ 61.692763][ T5127] FAULT_INJECTION: forcing a failure. [ 61.692763][ T5127] name failslab, interval 1, probability 0, space 0, times 0 [ 61.695101][ T5127] CPU: 0 PID: 5127 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.696631][ T5127] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.698271][ T5127] Call trace: [ 61.698831][ T5127] dump_backtrace+0x0/0x458 [ 61.699558][ T5127] show_stack+0x2c/0x3c [ 61.700297][ T5127] __dump_stack+0x30/0x40 [ 61.700989][ T5127] dump_stack_lvl+0xf4/0x15c [ 61.701826][ T5127] dump_stack+0x1c/0x5c [ 61.702542][ T5127] should_fail+0x3bc/0x514 [ 61.703259][ T5127] __should_failslab+0xbc/0x10c [ 61.704131][ T5127] should_failslab+0x10/0x28 [ 61.704927][ T5127] slab_pre_alloc_hook+0x64/0xe8 [ 61.705736][ T5127] kmem_cache_alloc_trace+0x98/0x3ec [ 61.706603][ T5127] rand_initialize_disk+0x58/0xb8 [ 61.707466][ T5127] __alloc_disk_node+0x2a8/0x450 [ 61.708386][ T5127] __blk_mq_alloc_disk+0xe8/0x154 [ 61.709299][ T5127] loop_add+0x240/0x6e0 [ 61.710041][ T5127] loop_control_ioctl+0x130/0x4e0 [ 61.710997][ T5127] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.711831][ T5127] invoke_syscall+0x98/0x2b0 [ 61.712603][ T5127] el0_svc_common+0x138/0x258 [ 61.713363][ T5127] do_el0_svc+0x58/0x13c [ 61.714046][ T5127] el0_svc+0x78/0x1d0 [ 61.714709][ T5127] el0t_64_sync_handler+0xcc/0xe4 [ 61.715553][ T5127] el0t_64_sync+0x1a0/0x1a4 [ 61.730286][ T5129] FAULT_INJECTION: forcing a failure. [ 61.730286][ T5129] name failslab, interval 1, probability 0, space 0, times 0 [ 61.733696][ T5129] CPU: 1 PID: 5129 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.735214][ T5129] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.736953][ T5129] Call trace: [ 61.737472][ T5129] dump_backtrace+0x0/0x458 [ 61.738244][ T5129] show_stack+0x2c/0x3c [ 61.738914][ T5129] __dump_stack+0x30/0x40 [ 61.739648][ T5129] dump_stack_lvl+0xf4/0x15c [ 61.740437][ T5129] dump_stack+0x1c/0x5c [ 61.741173][ T5129] should_fail+0x3bc/0x514 [ 61.741946][ T5129] __should_failslab+0xbc/0x10c [ 61.742782][ T5129] should_failslab+0x10/0x28 [ 61.743584][ T5129] slab_pre_alloc_hook+0x64/0xe8 [ 61.744405][ T5129] kmem_cache_alloc_trace+0x98/0x3ec [ 61.745315][ T5129] blk_iolatency_init+0x64/0x430 [ 61.746126][ T5129] blkcg_init_queue+0x3f0/0x484 [ 61.746930][ T5129] blk_alloc_queue+0x3cc/0x4a0 [ 61.747730][ T5129] __blk_mq_alloc_disk+0x5c/0x154 [ 61.748644][ T5129] loop_add+0x240/0x6e0 [ 61.749396][ T5129] loop_control_ioctl+0x130/0x4e0 [ 61.750308][ T5129] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.751197][ T5129] invoke_syscall+0x98/0x2b0 [ 61.751953][ T5129] el0_svc_common+0x138/0x258 [ 61.752722][ T5129] do_el0_svc+0x58/0x13c [ 61.753446][ T5129] el0_svc+0x78/0x1d0 [ 61.754117][ T5129] el0t_64_sync_handler+0xcc/0xe4 [ 61.754959][ T5129] el0t_64_sync+0x1a0/0x1a4 [ 61.765910][ T5131] FAULT_INJECTION: forcing a failure. [ 61.765910][ T5131] name failslab, interval 1, probability 0, space 0, times 0 [ 61.768150][ T5131] CPU: 0 PID: 5131 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.769757][ T5131] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.771536][ T5131] Call trace: [ 61.772064][ T5131] dump_backtrace+0x0/0x458 [ 61.772820][ T5131] show_stack+0x2c/0x3c [ 61.773583][ T5131] __dump_stack+0x30/0x40 [ 61.774245][ T5131] dump_stack_lvl+0xf4/0x15c [ 61.775034][ T5131] dump_stack+0x1c/0x5c [ 61.775708][ T5131] should_fail+0x3bc/0x514 [ 61.776485][ T5131] __should_failslab+0xbc/0x10c [ 61.777344][ T5131] should_failslab+0x10/0x28 [ 61.778097][ T5131] slab_pre_alloc_hook+0x64/0xe8 [ 61.778896][ T5131] kmem_cache_alloc+0x94/0x3d4 [ 61.779680][ T5131] security_inode_alloc+0x38/0x11c [ 61.780578][ T5131] inode_init_always+0x670/0xa84 [ 61.781376][ T5131] new_inode_pseudo+0x7c/0x1fc [ 61.782140][ T5131] new_inode+0x38/0x174 [ 61.782803][ T5131] bdev_alloc+0x30/0x1f8 [ 61.783492][ T5131] __alloc_disk_node+0xbc/0x450 [ 61.784298][ T5131] __blk_mq_alloc_disk+0xe8/0x154 [ 61.785112][ T5131] loop_add+0x240/0x6e0 [ 61.785764][ T5131] loop_control_ioctl+0x130/0x4e0 [ 61.786586][ T5131] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.787379][ T5131] invoke_syscall+0x98/0x2b0 [ 61.788184][ T5131] el0_svc_common+0x138/0x258 [ 61.788950][ T5131] do_el0_svc+0x58/0x13c [ 61.789659][ T5131] el0_svc+0x78/0x1d0 [ 61.790322][ T5131] el0t_64_sync_handler+0xcc/0xe4 [ 61.791141][ T5131] el0t_64_sync+0x1a0/0x1a4 [ 61.801984][ T5133] FAULT_INJECTION: forcing a failure. [ 61.801984][ T5133] name failslab, interval 1, probability 0, space 0, times 0 [ 61.804146][ T5133] CPU: 0 PID: 5133 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.805548][ T5133] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.807312][ T5133] Call trace: [ 61.807837][ T5133] dump_backtrace+0x0/0x458 [ 61.808607][ T5133] show_stack+0x2c/0x3c [ 61.809307][ T5133] __dump_stack+0x30/0x40 [ 61.810084][ T5133] dump_stack_lvl+0xf4/0x15c [ 61.810858][ T5133] dump_stack+0x1c/0x5c [ 61.811522][ T5133] should_fail+0x3bc/0x514 [ 61.812254][ T5133] __should_failslab+0xbc/0x10c [ 61.813062][ T5133] should_failslab+0x10/0x28 [ 61.813860][ T5133] slab_pre_alloc_hook+0x64/0xe8 [ 61.814768][ T5133] __kmalloc_track_caller+0x70/0x358 [ 61.815681][ T5133] kstrdup+0xe4/0x15c [ 61.816320][ T5133] kstrdup_const+0x54/0x6c [ 61.817041][ T5133] kvasprintf_const+0x120/0x2e4 [ 61.817843][ T5133] kobject_set_name_vargs+0xd8/0x1c8 [ 61.818756][ T5133] dev_set_name+0xe8/0x13c [ 61.819521][ T5133] device_add_disk+0x258/0xacc [ 61.820351][ T5133] loop_add+0x510/0x6e0 [ 61.821062][ T5133] loop_control_ioctl+0x130/0x4e0 [ 61.821890][ T5133] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.822710][ T5133] invoke_syscall+0x98/0x2b0 [ 61.823452][ T5133] el0_svc_common+0x138/0x258 [ 61.824286][ T5133] do_el0_svc+0x58/0x13c [ 61.825026][ T5133] el0_svc+0x78/0x1d0 [ 61.825713][ T5133] el0t_64_sync_handler+0xcc/0xe4 [ 61.826570][ T5133] el0t_64_sync+0x1a0/0x1a4 [ 61.836596][ T5135] FAULT_INJECTION: forcing a failure. [ 61.836596][ T5135] name failslab, interval 1, probability 0, space 0, times 0 [ 61.838788][ T5135] CPU: 1 PID: 5135 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.840297][ T5135] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.842052][ T5135] Call trace: [ 61.842585][ T5135] dump_backtrace+0x0/0x458 [ 61.843361][ T5135] show_stack+0x2c/0x3c [ 61.844070][ T5135] __dump_stack+0x30/0x40 [ 61.844846][ T5135] dump_stack_lvl+0xf4/0x15c [ 61.845653][ T5135] dump_stack+0x1c/0x5c [ 61.846371][ T5135] should_fail+0x3bc/0x514 [ 61.847173][ T5135] __should_failslab+0xbc/0x10c [ 61.848082][ T5135] should_failslab+0x10/0x28 [ 61.848840][ T5135] slab_pre_alloc_hook+0x64/0xe8 [ 61.849654][ T5135] kmem_cache_alloc_trace+0x98/0x3ec [ 61.850570][ T5135] device_add+0xbc/0xf90 [ 61.851356][ T5135] device_add_disk+0x2d0/0xacc [ 61.852208][ T5135] loop_add+0x510/0x6e0 [ 61.852853][ T5135] loop_control_ioctl+0x130/0x4e0 [ 61.853744][ T5135] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.854537][ T5135] invoke_syscall+0x98/0x2b0 [ 61.855313][ T5135] el0_svc_common+0x138/0x258 [ 61.856072][ T5135] do_el0_svc+0x58/0x13c [ 61.856827][ T5135] el0_svc+0x78/0x1d0 [ 61.857510][ T5135] el0t_64_sync_handler+0xcc/0xe4 [ 61.858338][ T5135] el0t_64_sync+0x1a0/0x1a4 [ 61.868610][ T5137] FAULT_INJECTION: forcing a failure. [ 61.868610][ T5137] name failslab, interval 1, probability 0, space 0, times 0 [ 61.870865][ T5137] CPU: 0 PID: 5137 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 61.872300][ T5137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 61.874167][ T5137] Call trace: [ 61.874705][ T5137] dump_backtrace+0x0/0x458 [ 61.875439][ T5137] show_stack+0x2c/0x3c [ 61.876104][ T5137] __dump_stack+0x30/0x40 [ 61.876866][ T5137] dump_stack_lvl+0xf4/0x15c [ 61.877702][ T5137] dump_stack+0x1c/0x5c [ 61.878388][ T5137] should_fail+0x3bc/0x514 [ 61.879195][ T5137] __should_failslab+0xbc/0x10c [ 61.880002][ T5137] should_failslab+0x10/0x28 [ 61.880745][ T5137] slab_pre_alloc_hook+0x64/0xe8 [ 61.881554][ T5137] kmem_cache_alloc_trace+0x98/0x3ec [ 61.882431][ T5137] rand_initialize_disk+0x58/0xb8 [ 61.883287][ T5137] __alloc_disk_node+0x2a8/0x450 [ 61.884129][ T5137] __blk_mq_alloc_disk+0xe8/0x154 [ 61.884999][ T5137] loop_add+0x240/0x6e0 [ 61.885723][ T5137] loop_control_ioctl+0x130/0x4e0 [ 61.886586][ T5137] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.887393][ T5137] invoke_syscall+0x98/0x2b0