Warning: Permanently added '10.128.0.49' (ED25519) to the list of known hosts.
2026/04/09 21:00:49 ignoring optional flag "type"="gce"
2026/04/09 21:00:49 parsed 1 programs
2026/04/09 21:00:50 executed programs: 0
[ 85.942706][ T4416] chnl_net:caif_netlink_parms(): no params data found
[ 86.005976][ T4416] bridge0: port 1(bridge_slave_0) entered blocking state
[ 86.013168][ T4416] bridge0: port 1(bridge_slave_0) entered disabled state
[ 86.022704][ T4416] device bridge_slave_0 entered promiscuous mode
[ 86.031290][ T4416] bridge0: port 2(bridge_slave_1) entered blocking state
[ 86.039699][ T4416] bridge0: port 2(bridge_slave_1) entered disabled state
[ 86.048114][ T4416] device bridge_slave_1 entered promiscuous mode
[ 86.077700][ T4416] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 86.090504][ T4416] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 86.124089][ T4416] team0: Port device team_slave_0 added
[ 86.132358][ T4416] team0: Port device team_slave_1 added
[ 86.159754][ T4416] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 86.168530][ T4416] 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.
[ 86.196081][ T4416] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 86.209534][ T4416] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 86.217895][ T4416] 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.
[ 86.245107][ T4416] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 86.287590][ T4416] device hsr_slave_0 entered promiscuous mode
[ 86.295055][ T4416] device hsr_slave_1 entered promiscuous mode
[ 86.782617][ T4416] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 86.793948][ T4416] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 86.805892][ T4416] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 86.818571][ T2857] cfg80211: failed to load regulatory.db
[ 86.830709][ T4416] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 86.861942][ T4416] bridge0: port 2(bridge_slave_1) entered blocking state
[ 86.869125][ T4416] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 86.876652][ T4416] bridge0: port 1(bridge_slave_0) entered blocking state
[ 86.883847][ T4416] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 86.938765][ T4416] 8021q: adding VLAN 0 to HW filter on device bond0
[ 86.953620][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 86.963086][ T1134] bridge0: port 1(bridge_slave_0) entered disabled state
[ 86.972251][ T1134] bridge0: port 2(bridge_slave_1) entered disabled state
[ 86.981537][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[ 86.996050][ T4416] 8021q: adding VLAN 0 to HW filter on device team0
[ 87.009691][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[ 87.018943][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 87.027866][ T1134] bridge0: port 1(bridge_slave_0) entered blocking state
[ 87.034980][ T1134] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 87.043949][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[ 87.061281][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 87.070345][ T1134] bridge0: port 2(bridge_slave_1) entered blocking state
[ 87.077479][ T1134] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 87.090791][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready
[ 87.105513][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready
[ 87.118697][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready
[ 87.128422][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 87.151436][ T4416] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network
[ 87.162310][ T4416] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[ 87.175529][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[ 87.184211][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready
[ 87.194653][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 87.203581][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready
[ 87.213639][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 87.223296][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready
[ 87.233350][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 87.248284][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 87.372722][ T1468] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 87.382286][ T1468] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 87.397154][ T4416] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 87.419677][ T1468] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
[ 87.430876][ T1468] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 87.454128][ T4416] device veth0_vlan entered promiscuous mode
[ 87.462617][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
[ 87.471197][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 87.483807][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 87.493538][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 87.504564][ T4416] device veth1_vlan entered promiscuous mode
[ 87.527110][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[ 87.544179][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[ 87.553200][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
[ 87.577217][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 87.588223][ T4416] device veth0_macvtap entered promiscuous mode
[ 87.602624][ T4416] device veth1_macvtap entered promiscuous mode
[ 87.637576][ T4416] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 87.644948][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[ 87.659555][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
[ 87.668297][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[ 87.696283][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 87.719329][ T4416] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 87.727201][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[ 87.746525][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 87.760778][ T4416] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 87.771253][ T4416] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 87.780465][ T4416] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 87.804231][ T4416] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 87.910275][ T4494] loop0: detected capacity change from 0 to 64
[ 87.926271][ T23] Bluetooth: hci0: command 0x0409 tx timeout
[ 87.946397][ T4494] hfs: unable to locate alternate MDB
[ 87.975680][ T4494] hfs: continuing without an alternate MDB
[ 88.010651][ T4494] FAULT_INJECTION: forcing a failure.
[ 88.010651][ T4494] name fail_page_alloc, interval 1, probability 0, space 0, times 1
[ 88.041075][ T4494] CPU: 0 PID: 4494 Comm: syz-executor.0 Not tainted syzkaller #0
[ 88.048872][ T4494] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 88.059252][ T4494] Call Trace:
[ 88.062591][ T4494]
[ 88.065570][ T4494] dump_stack_lvl+0x188/0x250
[ 88.070503][ T4494] ? show_regs_print_info+0x20/0x20
[ 88.075764][ T4494] ? load_image+0x400/0x400
[ 88.080314][ T4494] ? __lock_acquire+0x7d10/0x7d10
[ 88.085397][ T4494] should_fail+0x38c/0x4c0
[ 88.089866][ T4494] prepare_alloc_pages+0x1e4/0x5f0
[ 88.095024][ T4494] __alloc_pages+0x11b/0x480
[ 88.099662][ T4494] ? zone_statistics+0x170/0x170
[ 88.104630][ T4494] ? do_raw_spin_lock+0x128/0x2f0
[ 88.109701][ T4494] ? alloc_pages+0x438/0x550
[ 88.114332][ T4494] __page_cache_alloc+0xce/0x440
[ 88.119313][ T4494] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 88.124804][ T4494] ? xas_descend+0x210/0x3b0
[ 88.129425][ T4494] ? xas_load+0x127/0x140
[ 88.133794][ T4494] pagecache_get_page+0x9b6/0xf10
[ 88.138866][ T4494] ? page_cache_prev_miss+0x380/0x380
[ 88.144275][ T4494] ? mark_lock+0x94/0x320
[ 88.148646][ T4494] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 88.154669][ T4494] ? lock_chain_count+0x20/0x20
[ 88.159564][ T4494] ? do_user_addr_fault+0x694/0xc80
[ 88.164824][ T4494] grab_cache_page_write_begin+0x5c/0xa0
[ 88.170495][ T4494] cont_write_begin+0x578/0x7b0
[ 88.175390][ T4494] ? lockdep_hardirqs_on+0x94/0x140
[ 88.180687][ T4494] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 88.186625][ T4494] ? __get_user_nocheck_1+0x6/0x10
[ 88.191779][ T4494] hfs_write_begin+0x92/0xe0
[ 88.196412][ T4494] ? hfs_free_extents+0x430/0x430
[ 88.201512][ T4494] generic_perform_write+0x2b6/0x550
[ 88.206861][ T4494] ? grab_cache_page_write_begin+0xa0/0xa0
[ 88.212718][ T4494] ? file_remove_privs+0x5d0/0x5d0
[ 88.217873][ T4494] ? rwsem_write_trylock+0x135/0x1c0
[ 88.223237][ T4494] ? clear_nonspinnable+0x60/0x60
[ 88.228340][ T4494] __generic_file_write_iter+0x25f/0x4e0
[ 88.234018][ T4494] generic_file_write_iter+0xa6/0x1b0
[ 88.239457][ T4494] vfs_write+0x745/0xd60
[ 88.243836][ T4494] ? file_end_write+0x250/0x250
[ 88.248727][ T4494] ? __fget_files+0x40f/0x480
[ 88.253482][ T4494] ? mutex_lock_nested+0x17/0x20
[ 88.258453][ T4494] ? __fdget_pos+0x2bf/0x370
[ 88.263075][ T4494] ? ksys_write+0x71/0x260
[ 88.267537][ T4494] ksys_write+0x152/0x260
[ 88.271920][ T4494] ? __ia32_sys_read+0x80/0x80
[ 88.276723][ T4494] ? lockdep_hardirqs_on+0x94/0x140
[ 88.281964][ T4494] do_syscall_64+0x4c/0xa0
[ 88.286452][ T4494] ? clear_bhb_loop+0x30/0x80
[ 88.291164][ T4494] ? clear_bhb_loop+0x30/0x80
[ 88.295899][ T4494] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 88.301842][ T4494] RIP: 0033:0x7f6c986d1fb9
[ 88.306298][ T4494] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 88.326170][ T4494] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 88.334642][ T4494] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 88.342652][ T4494] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 88.350741][ T4494] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 88.358753][ T4494] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 88.366851][ T4494] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 88.374878][ T4494]
[ 88.512632][ T4506] loop0: detected capacity change from 0 to 64
[ 88.523676][ T4506] hfs: unable to locate alternate MDB
[ 88.529855][ T4506] hfs: continuing without an alternate MDB
[ 88.553324][ T4506] FAULT_INJECTION: forcing a failure.
[ 88.553324][ T4506] name failslab, interval 1, probability 0, space 0, times 1
[ 88.566521][ T4506] CPU: 1 PID: 4506 Comm: syz-executor.0 Not tainted syzkaller #0
[ 88.574512][ T4506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 88.584622][ T4506] Call Trace:
[ 88.588024][ T4506]
[ 88.591010][ T4506] dump_stack_lvl+0x188/0x250
[ 88.595748][ T4506] ? show_regs_print_info+0x20/0x20
[ 88.601099][ T4506] ? load_image+0x400/0x400
[ 88.605646][ T4506] ? __might_sleep+0xf0/0xf0
[ 88.610278][ T4506] ? __lock_acquire+0x7d10/0x7d10
[ 88.615583][ T4506] should_fail+0x38c/0x4c0
[ 88.620063][ T4506] should_failslab+0x5/0x20
[ 88.624687][ T4506] slab_pre_alloc_hook+0x51/0xc0
[ 88.629662][ T4506] __kmalloc_node+0x6e/0x3b0
[ 88.634287][ T4506] ? memcg_alloc_page_obj_cgroups+0x81/0x120
[ 88.640312][ T4506] memcg_alloc_page_obj_cgroups+0x81/0x120
[ 88.646157][ T4506] slab_post_alloc_hook+0xba/0x380
[ 88.651316][ T4506] ? alloc_buffer_head+0x21/0x100
[ 88.656392][ T4506] kmem_cache_alloc+0x100/0x290
[ 88.661299][ T4506] alloc_buffer_head+0x21/0x100
[ 88.666231][ T4506] alloc_page_buffers+0x341/0x600
[ 88.671296][ T4506] create_empty_buffers+0x3a/0x6d0
[ 88.676513][ T4506] create_page_buffers+0x1c4/0x320
[ 88.681687][ T4506] __block_write_begin_int+0x25f/0x15d0
[ 88.687285][ T4506] ? page_cache_prev_miss+0x380/0x380
[ 88.692690][ T4506] ? mark_lock+0x94/0x320
[ 88.697068][ T4506] ? hfs_free_extents+0x430/0x430
[ 88.702129][ T4506] ? page_zero_new_buffers+0x490/0x490
[ 88.707738][ T4506] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 88.713766][ T4506] ? lock_chain_count+0x20/0x20
[ 88.718740][ T4506] ? do_user_addr_fault+0x694/0xc80
[ 88.724075][ T4506] ? wait_for_stable_page+0xd9/0x110
[ 88.729412][ T4506] cont_write_begin+0x598/0x7b0
[ 88.734304][ T4506] ? lockdep_hardirqs_on+0x94/0x140
[ 88.739553][ T4506] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 88.745497][ T4506] ? __get_user_nocheck_1+0x6/0x10
[ 88.750651][ T4506] hfs_write_begin+0x92/0xe0
[ 88.755279][ T4506] ? hfs_free_extents+0x430/0x430
[ 88.760458][ T4506] generic_perform_write+0x2b6/0x550
[ 88.765884][ T4506] ? grab_cache_page_write_begin+0xa0/0xa0
[ 88.771721][ T4506] ? file_remove_privs+0x5d0/0x5d0
[ 88.776882][ T4506] ? rwsem_write_trylock+0x135/0x1c0
[ 88.782209][ T4506] ? clear_nonspinnable+0x60/0x60
[ 88.787276][ T4506] __generic_file_write_iter+0x25f/0x4e0
[ 88.792947][ T4506] generic_file_write_iter+0xa6/0x1b0
[ 88.798370][ T4506] vfs_write+0x745/0xd60
[ 88.802658][ T4506] ? file_end_write+0x250/0x250
[ 88.807556][ T4506] ? __fget_files+0x40f/0x480
[ 88.812290][ T4506] ? mutex_lock_nested+0x17/0x20
[ 88.817371][ T4506] ? __fdget_pos+0x2bf/0x370
[ 88.821991][ T4506] ? ksys_write+0x71/0x260
[ 88.826448][ T4506] ksys_write+0x152/0x260
[ 88.830822][ T4506] ? __ia32_sys_read+0x80/0x80
[ 88.835623][ T4506] ? lockdep_hardirqs_on+0x94/0x140
[ 88.840952][ T4506] do_syscall_64+0x4c/0xa0
[ 88.845398][ T4506] ? clear_bhb_loop+0x30/0x80
[ 88.850109][ T4506] ? clear_bhb_loop+0x30/0x80
[ 88.854918][ T4506] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 88.860861][ T4506] RIP: 0033:0x7f6c986d1fb9
[ 88.865308][ T4506] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 88.884944][ T4506] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 88.893415][ T4506] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 88.901522][ T4506] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 88.909528][ T4506] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 88.917537][ T4506] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 88.925563][ T4506] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 88.933688][ T4506]
[ 89.020996][ T4515] loop0: detected capacity change from 0 to 64
[ 89.040639][ T4515] hfs: unable to locate alternate MDB
[ 89.056544][ T4515] hfs: continuing without an alternate MDB
[ 89.073298][ T4515] FAULT_INJECTION: forcing a failure.
[ 89.073298][ T4515] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 89.088258][ T4515] CPU: 0 PID: 4515 Comm: syz-executor.0 Not tainted syzkaller #0
[ 89.096038][ T4515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 89.106132][ T4515] Call Trace:
[ 89.109461][ T4515]
[ 89.112432][ T4515] dump_stack_lvl+0x188/0x250
[ 89.117254][ T4515] ? show_regs_print_info+0x20/0x20
[ 89.122505][ T4515] ? load_image+0x400/0x400
[ 89.127051][ T4515] ? __lock_acquire+0x7d10/0x7d10
[ 89.132130][ T4515] should_fail+0x38c/0x4c0
[ 89.136584][ T4515] prepare_alloc_pages+0x1e4/0x5f0
[ 89.141746][ T4515] __alloc_pages+0x11b/0x480
[ 89.146377][ T4515] ? zone_statistics+0x170/0x170
[ 89.151354][ T4515] ? do_raw_spin_lock+0x128/0x2f0
[ 89.156427][ T4515] ? alloc_pages+0x438/0x550
[ 89.161057][ T4515] __page_cache_alloc+0xce/0x440
[ 89.166026][ T4515] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 89.171518][ T4515] ? xas_descend+0x210/0x3b0
[ 89.176140][ T4515] ? xas_load+0x127/0x140
[ 89.180504][ T4515] pagecache_get_page+0x9b6/0xf10
[ 89.185570][ T4515] ? page_cache_prev_miss+0x380/0x380
[ 89.190981][ T4515] ? mark_lock+0x94/0x320
[ 89.195352][ T4515] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 89.201378][ T4515] ? lock_chain_count+0x20/0x20
[ 89.206274][ T4515] ? do_user_addr_fault+0x694/0xc80
[ 89.211515][ T4515] grab_cache_page_write_begin+0x5c/0xa0
[ 89.217186][ T4515] cont_write_begin+0x578/0x7b0
[ 89.222076][ T4515] ? lockdep_hardirqs_on+0x94/0x140
[ 89.227329][ T4515] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 89.233308][ T4515] ? __get_user_nocheck_1+0x6/0x10
[ 89.238475][ T4515] hfs_write_begin+0x92/0xe0
[ 89.243109][ T4515] ? hfs_free_extents+0x430/0x430
[ 89.248192][ T4515] generic_perform_write+0x2b6/0x550
[ 89.253555][ T4515] ? grab_cache_page_write_begin+0xa0/0xa0
[ 89.259402][ T4515] ? file_remove_privs+0x5d0/0x5d0
[ 89.264568][ T4515] ? rwsem_write_trylock+0x135/0x1c0
[ 89.269890][ T4515] ? clear_nonspinnable+0x60/0x60
[ 89.274963][ T4515] __generic_file_write_iter+0x25f/0x4e0
[ 89.280645][ T4515] generic_file_write_iter+0xa6/0x1b0
[ 89.286069][ T4515] vfs_write+0x745/0xd60
[ 89.290538][ T4515] ? file_end_write+0x250/0x250
[ 89.295456][ T4515] ? __fget_files+0x40f/0x480
[ 89.300180][ T4515] ? mutex_lock_nested+0x17/0x20
[ 89.305164][ T4515] ? __fdget_pos+0x2bf/0x370
[ 89.309895][ T4515] ? ksys_write+0x71/0x260
[ 89.314381][ T4515] ksys_write+0x152/0x260
[ 89.318765][ T4515] ? __ia32_sys_read+0x80/0x80
[ 89.323574][ T4515] ? lockdep_hardirqs_on+0x94/0x140
[ 89.328818][ T4515] do_syscall_64+0x4c/0xa0
[ 89.333372][ T4515] ? clear_bhb_loop+0x30/0x80
[ 89.338085][ T4515] ? clear_bhb_loop+0x30/0x80
[ 89.342975][ T4515] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 89.348900][ T4515] RIP: 0033:0x7f6c986d1fb9
[ 89.353349][ T4515] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 89.373076][ T4515] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 89.381529][ T4515] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 89.389641][ T4515] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 89.397654][ T4515] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 89.405656][ T4515] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 89.413657][ T4515] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 89.421695][ T4515]
[ 89.499185][ T4527] loop0: detected capacity change from 0 to 64
[ 89.511095][ T4527] hfs: unable to locate alternate MDB
[ 89.525362][ T4527] hfs: continuing without an alternate MDB
[ 89.549641][ T4527] FAULT_INJECTION: forcing a failure.
[ 89.549641][ T4527] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 89.572546][ T4527] CPU: 1 PID: 4527 Comm: syz-executor.0 Not tainted syzkaller #0
[ 89.580463][ T4527] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 89.590730][ T4527] Call Trace:
[ 89.594137][ T4527]
[ 89.597096][ T4527] dump_stack_lvl+0x188/0x250
[ 89.601820][ T4527] ? show_regs_print_info+0x20/0x20
[ 89.607066][ T4527] ? load_image+0x400/0x400
[ 89.611617][ T4527] ? __lock_acquire+0x7d10/0x7d10
[ 89.616809][ T4527] should_fail+0x38c/0x4c0
[ 89.621303][ T4527] prepare_alloc_pages+0x1e4/0x5f0
[ 89.626464][ T4527] __alloc_pages+0x11b/0x480
[ 89.631098][ T4527] ? zone_statistics+0x170/0x170
[ 89.636250][ T4527] ? do_raw_spin_lock+0x128/0x2f0
[ 89.641512][ T4527] ? alloc_pages+0x438/0x550
[ 89.646332][ T4527] __page_cache_alloc+0xce/0x440
[ 89.651318][ T4527] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 89.656812][ T4527] ? xas_descend+0x210/0x3b0
[ 89.661443][ T4527] ? xas_load+0x127/0x140
[ 89.665812][ T4527] pagecache_get_page+0x9b6/0xf10
[ 89.671148][ T4527] ? page_cache_prev_miss+0x380/0x380
[ 89.676555][ T4527] ? mark_lock+0x94/0x320
[ 89.680928][ T4527] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 89.686966][ T4527] ? lock_chain_count+0x20/0x20
[ 89.691852][ T4527] ? do_user_addr_fault+0x694/0xc80
[ 89.697098][ T4527] grab_cache_page_write_begin+0x5c/0xa0
[ 89.702794][ T4527] cont_write_begin+0x578/0x7b0
[ 89.707725][ T4527] ? lockdep_hardirqs_on+0x94/0x140
[ 89.712978][ T4527] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 89.718919][ T4527] ? __get_user_nocheck_1+0x6/0x10
[ 89.724080][ T4527] hfs_write_begin+0x92/0xe0
[ 89.728712][ T4527] ? hfs_free_extents+0x430/0x430
[ 89.733784][ T4527] generic_perform_write+0x2b6/0x550
[ 89.739233][ T4527] ? grab_cache_page_write_begin+0xa0/0xa0
[ 89.745078][ T4527] ? file_remove_privs+0x5d0/0x5d0
[ 89.750301][ T4527] ? rwsem_write_trylock+0x135/0x1c0
[ 89.755631][ T4527] ? clear_nonspinnable+0x60/0x60
[ 89.760698][ T4527] __generic_file_write_iter+0x25f/0x4e0
[ 89.766565][ T4527] generic_file_write_iter+0xa6/0x1b0
[ 89.771984][ T4527] vfs_write+0x745/0xd60
[ 89.776275][ T4527] ? file_end_write+0x250/0x250
[ 89.781173][ T4527] ? __fget_files+0x40f/0x480
[ 89.785900][ T4527] ? mutex_lock_nested+0x17/0x20
[ 89.790874][ T4527] ? __fdget_pos+0x2bf/0x370
[ 89.795495][ T4527] ? ksys_write+0x71/0x260
[ 89.799954][ T4527] ksys_write+0x152/0x260
[ 89.804320][ T4527] ? __ia32_sys_read+0x80/0x80
[ 89.809132][ T4527] ? lockdep_hardirqs_on+0x94/0x140
[ 89.814387][ T4527] do_syscall_64+0x4c/0xa0
[ 89.818837][ T4527] ? clear_bhb_loop+0x30/0x80
[ 89.823548][ T4527] ? clear_bhb_loop+0x30/0x80
[ 89.828261][ T4527] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 89.834200][ T4527] RIP: 0033:0x7f6c986d1fb9
[ 89.838652][ T4527] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 89.858380][ T4527] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 89.866838][ T4527] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 89.874848][ T4527] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 89.882866][ T4527] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 89.890872][ T4527] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 89.898873][ T4527] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 89.906900][ T4527]
[ 89.988633][ T4538] loop0: detected capacity change from 0 to 64
[ 90.002158][ T4538] hfs: unable to locate alternate MDB
[ 90.021150][ T23] Bluetooth: hci0: command 0x041b tx timeout
[ 90.032020][ T4538] hfs: continuing without an alternate MDB
[ 90.050833][ T4538] FAULT_INJECTION: forcing a failure.
[ 90.050833][ T4538] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 90.067893][ T4538] CPU: 0 PID: 4538 Comm: syz-executor.0 Not tainted syzkaller #0
[ 90.075718][ T4538] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 90.085815][ T4538] Call Trace:
[ 90.089127][ T4538]
[ 90.092089][ T4538] dump_stack_lvl+0x188/0x250
[ 90.096840][ T4538] ? show_regs_print_info+0x20/0x20
[ 90.102359][ T4538] ? load_image+0x400/0x400
[ 90.106987][ T4538] ? __lock_acquire+0x7d10/0x7d10
[ 90.112059][ T4538] should_fail+0x38c/0x4c0
[ 90.116630][ T4538] prepare_alloc_pages+0x1e4/0x5f0
[ 90.121794][ T4538] __alloc_pages+0x11b/0x480
[ 90.126534][ T4538] ? zone_statistics+0x170/0x170
[ 90.131511][ T4538] ? do_raw_spin_lock+0x128/0x2f0
[ 90.136583][ T4538] ? alloc_pages+0x438/0x550
[ 90.141224][ T4538] __page_cache_alloc+0xce/0x440
[ 90.146216][ T4538] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 90.151716][ T4538] ? xas_descend+0x210/0x3b0
[ 90.156457][ T4538] ? xas_load+0x127/0x140
[ 90.160834][ T4538] pagecache_get_page+0x9b6/0xf10
[ 90.165898][ T4538] ? page_cache_prev_miss+0x380/0x380
[ 90.171313][ T4538] ? mark_lock+0x94/0x320
[ 90.175876][ T4538] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 90.181912][ T4538] ? lock_chain_count+0x20/0x20
[ 90.186799][ T4538] ? do_user_addr_fault+0x694/0xc80
[ 90.192046][ T4538] grab_cache_page_write_begin+0x5c/0xa0
[ 90.197718][ T4538] cont_write_begin+0x578/0x7b0
[ 90.202607][ T4538] ? lockdep_hardirqs_on+0x94/0x140
[ 90.207870][ T4538] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 90.213816][ T4538] ? __get_user_nocheck_1+0x6/0x10
[ 90.218969][ T4538] hfs_write_begin+0x92/0xe0
[ 90.223594][ T4538] ? hfs_free_extents+0x430/0x430
[ 90.228871][ T4538] generic_perform_write+0x2b6/0x550
[ 90.234354][ T4538] ? grab_cache_page_write_begin+0xa0/0xa0
[ 90.240205][ T4538] ? file_remove_privs+0x5d0/0x5d0
[ 90.245365][ T4538] ? rwsem_write_trylock+0x135/0x1c0
[ 90.250797][ T4538] ? clear_nonspinnable+0x60/0x60
[ 90.255869][ T4538] __generic_file_write_iter+0x25f/0x4e0
[ 90.261557][ T4538] generic_file_write_iter+0xa6/0x1b0
[ 90.266972][ T4538] vfs_write+0x745/0xd60
[ 90.271292][ T4538] ? file_end_write+0x250/0x250
[ 90.276212][ T4538] ? __fget_files+0x40f/0x480
[ 90.280939][ T4538] ? mutex_lock_nested+0x17/0x20
[ 90.285919][ T4538] ? __fdget_pos+0x2bf/0x370
[ 90.290543][ T4538] ? ksys_write+0x71/0x260
[ 90.294997][ T4538] ksys_write+0x152/0x260
[ 90.299370][ T4538] ? __ia32_sys_read+0x80/0x80
[ 90.304239][ T4538] ? lockdep_hardirqs_on+0x94/0x140
[ 90.309489][ T4538] do_syscall_64+0x4c/0xa0
[ 90.313943][ T4538] ? clear_bhb_loop+0x30/0x80
[ 90.318660][ T4538] ? clear_bhb_loop+0x30/0x80
[ 90.323405][ T4538] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 90.329470][ T4538] RIP: 0033:0x7f6c986d1fb9
[ 90.333923][ T4538] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 90.353789][ T4538] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 90.362277][ T4538] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 90.370580][ T4538] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 90.378595][ T4538] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 90.386602][ T4538] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 90.394605][ T4538] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 90.402624][ T4538]
[ 90.500445][ T4548] loop0: detected capacity change from 0 to 64
[ 90.512001][ T4548] hfs: unable to locate alternate MDB
[ 90.519824][ T4548] hfs: continuing without an alternate MDB
[ 90.541251][ T4548] FAULT_INJECTION: forcing a failure.
[ 90.541251][ T4548] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 90.556119][ T4548] CPU: 1 PID: 4548 Comm: syz-executor.0 Not tainted syzkaller #0
[ 90.563899][ T4548] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 90.574179][ T4548] Call Trace:
[ 90.577496][ T4548]
[ 90.580463][ T4548] dump_stack_lvl+0x188/0x250
[ 90.585183][ T4548] ? show_regs_print_info+0x20/0x20
[ 90.590432][ T4548] ? load_image+0x400/0x400
[ 90.594982][ T4548] ? __lock_acquire+0x7d10/0x7d10
[ 90.600094][ T4548] should_fail+0x38c/0x4c0
[ 90.604559][ T4548] prepare_alloc_pages+0x1e4/0x5f0
[ 90.609975][ T4548] __alloc_pages+0x11b/0x480
[ 90.614606][ T4548] ? zone_statistics+0x170/0x170
[ 90.619586][ T4548] ? do_raw_spin_lock+0x128/0x2f0
[ 90.624663][ T4548] ? alloc_pages+0x438/0x550
[ 90.629300][ T4548] __page_cache_alloc+0xce/0x440
[ 90.634364][ T4548] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 90.639859][ T4548] ? xas_descend+0x210/0x3b0
[ 90.644493][ T4548] ? xas_load+0x127/0x140
[ 90.648862][ T4548] pagecache_get_page+0x9b6/0xf10
[ 90.654044][ T4548] ? page_cache_prev_miss+0x380/0x380
[ 90.659450][ T4548] ? mark_lock+0x94/0x320
[ 90.663819][ T4548] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 90.669851][ T4548] ? lock_chain_count+0x20/0x20
[ 90.674743][ T4548] ? do_user_addr_fault+0x694/0xc80
[ 90.679985][ T4548] grab_cache_page_write_begin+0x5c/0xa0
[ 90.685660][ T4548] cont_write_begin+0x578/0x7b0
[ 90.690551][ T4548] ? lockdep_hardirqs_on+0x94/0x140
[ 90.695801][ T4548] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 90.701744][ T4548] ? __get_user_nocheck_1+0x6/0x10
[ 90.706899][ T4548] hfs_write_begin+0x92/0xe0
[ 90.711530][ T4548] ? hfs_free_extents+0x430/0x430
[ 90.716598][ T4548] generic_perform_write+0x2b6/0x550
[ 90.721941][ T4548] ? grab_cache_page_write_begin+0xa0/0xa0
[ 90.727789][ T4548] ? file_remove_privs+0x5d0/0x5d0
[ 90.732945][ T4548] ? rwsem_write_trylock+0x135/0x1c0
[ 90.738277][ T4548] ? clear_nonspinnable+0x60/0x60
[ 90.743347][ T4548] __generic_file_write_iter+0x25f/0x4e0
[ 90.749022][ T4548] generic_file_write_iter+0xa6/0x1b0
[ 90.754442][ T4548] vfs_write+0x745/0xd60
[ 90.758729][ T4548] ? file_end_write+0x250/0x250
[ 90.763638][ T4548] ? __fget_files+0x40f/0x480
[ 90.768358][ T4548] ? mutex_lock_nested+0x17/0x20
[ 90.773338][ T4548] ? __fdget_pos+0x2bf/0x370
[ 90.777966][ T4548] ? ksys_write+0x71/0x260
[ 90.782428][ T4548] ksys_write+0x152/0x260
[ 90.786807][ T4548] ? __ia32_sys_read+0x80/0x80
[ 90.791741][ T4548] ? lockdep_hardirqs_on+0x94/0x140
[ 90.796989][ T4548] do_syscall_64+0x4c/0xa0
[ 90.801441][ T4548] ? clear_bhb_loop+0x30/0x80
[ 90.806153][ T4548] ? clear_bhb_loop+0x30/0x80
[ 90.810893][ T4548] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 90.816823][ T4548] RIP: 0033:0x7f6c986d1fb9
[ 90.821282][ T4548] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
2026/04/09 21:00:55 executed programs: 6
[ 90.841104][ T4548] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 90.849589][ T4548] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 90.857707][ T4548] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 90.865709][ T4548] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 90.873807][ T4548] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 90.881808][ T4548] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 90.889826][ T4548]
[ 90.984475][ T4560] loop0: detected capacity change from 0 to 64
[ 91.000435][ T4560] hfs: unable to locate alternate MDB
[ 91.006741][ T4560] hfs: continuing without an alternate MDB
[ 91.036667][ T4560] FAULT_INJECTION: forcing a failure.
[ 91.036667][ T4560] name fail_usercopy, interval 1, probability 0, space 0, times 1
[ 91.049943][ T4560] CPU: 1 PID: 4560 Comm: syz-executor.0 Not tainted syzkaller #0
[ 91.057997][ T4560] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 91.068193][ T4560] Call Trace:
[ 91.071521][ T4560]
[ 91.074673][ T4560] dump_stack_lvl+0x188/0x250
[ 91.079410][ T4560] ? show_regs_print_info+0x20/0x20
[ 91.084745][ T4560] ? load_image+0x400/0x400
[ 91.089411][ T4560] ? hfs_free_extents+0x430/0x430
[ 91.094477][ T4560] ? page_zero_new_buffers+0x490/0x490
[ 91.099976][ T4560] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 91.106035][ T4560] ? lock_chain_count+0x20/0x20
[ 91.110930][ T4560] should_fail+0x38c/0x4c0
[ 91.115567][ T4560] copy_page_from_iter_atomic+0x43a/0x1540
[ 91.121538][ T4560] ? pipe_zero+0x370/0x370
[ 91.125999][ T4560] ? __get_user_nocheck_1+0x6/0x10
[ 91.131178][ T4560] ? hfs_write_begin+0x92/0xe0
[ 91.135981][ T4560] ? hfs_free_extents+0x430/0x430
[ 91.141045][ T4560] ? hfs_write_begin+0xac/0xe0
[ 91.145854][ T4560] generic_perform_write+0x30b/0x550
[ 91.151190][ T4560] ? grab_cache_page_write_begin+0xa0/0xa0
[ 91.157042][ T4560] ? file_remove_privs+0x5d0/0x5d0
[ 91.162195][ T4560] ? rwsem_write_trylock+0x135/0x1c0
[ 91.167520][ T4560] ? clear_nonspinnable+0x60/0x60
[ 91.172590][ T4560] __generic_file_write_iter+0x25f/0x4e0
[ 91.178268][ T4560] generic_file_write_iter+0xa6/0x1b0
[ 91.183679][ T4560] vfs_write+0x745/0xd60
[ 91.188050][ T4560] ? file_end_write+0x250/0x250
[ 91.192971][ T4560] ? __fget_files+0x40f/0x480
[ 91.197699][ T4560] ? mutex_lock_nested+0x17/0x20
[ 91.202677][ T4560] ? __fdget_pos+0x2bf/0x370
[ 91.207309][ T4560] ? ksys_write+0x71/0x260
[ 91.211851][ T4560] ksys_write+0x152/0x260
[ 91.216353][ T4560] ? __ia32_sys_read+0x80/0x80
[ 91.221189][ T4560] ? lockdep_hardirqs_on+0x94/0x140
[ 91.226427][ T4560] do_syscall_64+0x4c/0xa0
[ 91.230879][ T4560] ? clear_bhb_loop+0x30/0x80
[ 91.235605][ T4560] ? clear_bhb_loop+0x30/0x80
[ 91.240309][ T4560] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 91.246239][ T4560] RIP: 0033:0x7f6c986d1fb9
[ 91.250799][ T4560] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 91.270688][ T4560] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 91.279225][ T4560] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 91.287221][ T4560] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 91.295222][ T4560] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 91.303505][ T4560] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 91.311602][ T4560] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 91.319645][ T4560]
[ 91.412870][ T4568] loop0: detected capacity change from 0 to 64
[ 91.424344][ T4568] hfs: unable to locate alternate MDB
[ 91.430746][ T4568] hfs: continuing without an alternate MDB
[ 91.444823][ T4568] FAULT_INJECTION: forcing a failure.
[ 91.444823][ T4568] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 91.459967][ T4568] CPU: 1 PID: 4568 Comm: syz-executor.0 Not tainted syzkaller #0
[ 91.467827][ T4568] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 91.477927][ T4568] Call Trace:
[ 91.481241][ T4568]
[ 91.484199][ T4568] dump_stack_lvl+0x188/0x250
[ 91.488920][ T4568] ? show_regs_print_info+0x20/0x20
[ 91.494592][ T4568] ? load_image+0x400/0x400
[ 91.499141][ T4568] ? __lock_acquire+0x7d10/0x7d10
[ 91.504220][ T4568] should_fail+0x38c/0x4c0
[ 91.508687][ T4568] prepare_alloc_pages+0x1e4/0x5f0
[ 91.513854][ T4568] __alloc_pages+0x11b/0x480
[ 91.518492][ T4568] ? zone_statistics+0x170/0x170
[ 91.523573][ T4568] ? do_raw_spin_lock+0x128/0x2f0
[ 91.528818][ T4568] ? alloc_pages+0x438/0x550
[ 91.533541][ T4568] __page_cache_alloc+0xce/0x440
[ 91.538524][ T4568] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 91.544018][ T4568] ? xas_descend+0x210/0x3b0
[ 91.548695][ T4568] ? xas_load+0x127/0x140
[ 91.553084][ T4568] pagecache_get_page+0x9b6/0xf10
[ 91.558331][ T4568] ? page_cache_prev_miss+0x380/0x380
[ 91.563747][ T4568] ? mark_lock+0x94/0x320
[ 91.568172][ T4568] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 91.574191][ T4568] ? lock_chain_count+0x20/0x20
[ 91.579077][ T4568] ? do_user_addr_fault+0x694/0xc80
[ 91.584332][ T4568] grab_cache_page_write_begin+0x5c/0xa0
[ 91.590006][ T4568] cont_write_begin+0x578/0x7b0
[ 91.594895][ T4568] ? lockdep_hardirqs_on+0x94/0x140
[ 91.600161][ T4568] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 91.606103][ T4568] ? __get_user_nocheck_1+0x6/0x10
[ 91.611264][ T4568] hfs_write_begin+0x92/0xe0
[ 91.616245][ T4568] ? hfs_free_extents+0x430/0x430
[ 91.621348][ T4568] generic_perform_write+0x2b6/0x550
[ 91.626687][ T4568] ? grab_cache_page_write_begin+0xa0/0xa0
[ 91.632533][ T4568] ? file_remove_privs+0x5d0/0x5d0
[ 91.637695][ T4568] ? rwsem_write_trylock+0x135/0x1c0
[ 91.643217][ T4568] ? clear_nonspinnable+0x60/0x60
[ 91.648287][ T4568] __generic_file_write_iter+0x25f/0x4e0
[ 91.653969][ T4568] generic_file_write_iter+0xa6/0x1b0
[ 91.659380][ T4568] vfs_write+0x745/0xd60
[ 91.663792][ T4568] ? file_end_write+0x250/0x250
[ 91.668686][ T4568] ? __fget_files+0x40f/0x480
[ 91.673417][ T4568] ? mutex_lock_nested+0x17/0x20
[ 91.678402][ T4568] ? __fdget_pos+0x2bf/0x370
[ 91.683031][ T4568] ? ksys_write+0x71/0x260
[ 91.687494][ T4568] ksys_write+0x152/0x260
[ 91.691862][ T4568] ? __ia32_sys_read+0x80/0x80
[ 91.696666][ T4568] ? lockdep_hardirqs_on+0x94/0x140
[ 91.701912][ T4568] do_syscall_64+0x4c/0xa0
[ 91.706362][ T4568] ? clear_bhb_loop+0x30/0x80
[ 91.711088][ T4568] ? clear_bhb_loop+0x30/0x80
[ 91.715811][ T4568] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 91.721745][ T4568] RIP: 0033:0x7f6c986d1fb9
[ 91.726207][ T4568] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 91.745939][ T4568] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 91.754665][ T4568] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 91.762686][ T4568] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 91.770882][ T4568] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 91.778917][ T4568] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 91.786936][ T4568] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 91.794967][ T4568]
[ 91.915091][ T4581] loop0: detected capacity change from 0 to 64
[ 91.929676][ T4581] hfs: unable to locate alternate MDB
[ 91.935106][ T4581] hfs: continuing without an alternate MDB
[ 91.979385][ T4581] FAULT_INJECTION: forcing a failure.
[ 91.979385][ T4581] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 91.994487][ T4581] CPU: 1 PID: 4581 Comm: syz-executor.0 Not tainted syzkaller #0
[ 92.002266][ T4581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 92.012362][ T4581] Call Trace:
[ 92.015679][ T4581]
[ 92.018652][ T4581] dump_stack_lvl+0x188/0x250
[ 92.023374][ T4581] ? show_regs_print_info+0x20/0x20
[ 92.028618][ T4581] ? load_image+0x400/0x400
[ 92.033160][ T4581] ? __lock_acquire+0x7d10/0x7d10
[ 92.038248][ T4581] should_fail+0x38c/0x4c0
[ 92.042715][ T4581] prepare_alloc_pages+0x1e4/0x5f0
[ 92.047886][ T4581] __alloc_pages+0x11b/0x480
[ 92.052527][ T4581] ? zone_statistics+0x170/0x170
[ 92.057613][ T4581] ? do_raw_spin_lock+0x128/0x2f0
[ 92.062690][ T4581] ? alloc_pages+0x438/0x550
[ 92.067335][ T4581] __page_cache_alloc+0xce/0x440
[ 92.072490][ T4581] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 92.077988][ T4581] ? xas_descend+0x210/0x3b0
[ 92.082644][ T4581] ? xas_load+0x127/0x140
[ 92.087028][ T4581] pagecache_get_page+0x9b6/0xf10
[ 92.092184][ T4581] ? page_cache_prev_miss+0x380/0x380
[ 92.097596][ T4581] ? mark_lock+0x94/0x320
[ 92.102013][ T4581] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 92.108048][ T4581] ? lock_chain_count+0x20/0x20
[ 92.113073][ T4581] ? do_user_addr_fault+0x694/0xc80
[ 92.118321][ T4581] grab_cache_page_write_begin+0x5c/0xa0
[ 92.124023][ T4581] cont_write_begin+0x578/0x7b0
[ 92.128919][ T4581] ? lockdep_hardirqs_on+0x94/0x140
[ 92.134179][ T4581] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 92.140164][ T4581] ? __get_user_nocheck_1+0x6/0x10
[ 92.145403][ T4581] hfs_write_begin+0x92/0xe0
[ 92.150033][ T4581] ? hfs_free_extents+0x430/0x430
[ 92.155104][ T4581] generic_perform_write+0x2b6/0x550
[ 92.160450][ T4581] ? grab_cache_page_write_begin+0xa0/0xa0
[ 92.166298][ T4581] ? file_remove_privs+0x5d0/0x5d0
[ 92.171550][ T4581] ? rwsem_write_trylock+0x135/0x1c0
[ 92.176880][ T4581] ? clear_nonspinnable+0x60/0x60
[ 92.181955][ T4581] __generic_file_write_iter+0x25f/0x4e0
[ 92.187661][ T4581] generic_file_write_iter+0xa6/0x1b0
[ 92.193090][ T4581] vfs_write+0x745/0xd60
[ 92.197381][ T4581] ? file_end_write+0x250/0x250
[ 92.202273][ T4581] ? __fget_files+0x40f/0x480
[ 92.207063][ T4581] ? mutex_lock_nested+0x17/0x20
[ 92.212142][ T4581] ? __fdget_pos+0x2bf/0x370
[ 92.216766][ T4581] ? ksys_write+0x71/0x260
[ 92.221223][ T4581] ksys_write+0x152/0x260
[ 92.225603][ T4581] ? __ia32_sys_read+0x80/0x80
[ 92.230418][ T4581] ? lockdep_hardirqs_on+0x94/0x140
[ 92.235658][ T4581] do_syscall_64+0x4c/0xa0
[ 92.240140][ T4581] ? clear_bhb_loop+0x30/0x80
[ 92.245023][ T4581] ? clear_bhb_loop+0x30/0x80
[ 92.249744][ T4581] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 92.255698][ T4581] RIP: 0033:0x7f6c986d1fb9
[ 92.260159][ T4581] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 92.280262][ T4581] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 92.288729][ T4581] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 92.296861][ T4581] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 92.304877][ T4581] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 92.312899][ T4581] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 92.320916][ T4581] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 92.328946][ T4581]
[ 92.333437][ T23] Bluetooth: hci0: command 0x040f tx timeout
[ 92.447825][ T4595] loop0: detected capacity change from 0 to 64
[ 92.476921][ T4595] hfs: unable to locate alternate MDB
[ 92.482743][ T4595] hfs: continuing without an alternate MDB
[ 92.506052][ T4595] FAULT_INJECTION: forcing a failure.
[ 92.506052][ T4595] name failslab, interval 1, probability 0, space 0, times 0
[ 92.520153][ T4595] CPU: 1 PID: 4595 Comm: syz-executor.0 Not tainted syzkaller #0
[ 92.527933][ T4595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 92.538023][ T4595] Call Trace:
[ 92.541348][ T4595]
[ 92.544319][ T4595] dump_stack_lvl+0x188/0x250
[ 92.549051][ T4595] ? show_regs_print_info+0x20/0x20
[ 92.554325][ T4595] ? load_image+0x400/0x400
[ 92.558961][ T4595] ? __might_sleep+0xf0/0xf0
[ 92.563599][ T4595] ? __lock_acquire+0x7d10/0x7d10
[ 92.568670][ T4595] should_fail+0x38c/0x4c0
[ 92.573223][ T4595] should_failslab+0x5/0x20
[ 92.577849][ T4595] slab_pre_alloc_hook+0x51/0xc0
[ 92.582837][ T4595] __kmalloc_node+0x6e/0x3b0
[ 92.587645][ T4595] ? memcg_alloc_page_obj_cgroups+0x81/0x120
[ 92.593675][ T4595] memcg_alloc_page_obj_cgroups+0x81/0x120
[ 92.599526][ T4595] slab_post_alloc_hook+0xba/0x380
[ 92.604679][ T4595] ? alloc_buffer_head+0x21/0x100
[ 92.609786][ T4595] kmem_cache_alloc+0x100/0x290
[ 92.614683][ T4595] alloc_buffer_head+0x21/0x100
[ 92.619668][ T4595] alloc_page_buffers+0x341/0x600
[ 92.624737][ T4595] create_empty_buffers+0x3a/0x6d0
[ 92.629898][ T4595] create_page_buffers+0x1c4/0x320
[ 92.635053][ T4595] __block_write_begin_int+0x25f/0x15d0
[ 92.640652][ T4595] ? page_cache_prev_miss+0x380/0x380
[ 92.646072][ T4595] ? mark_lock+0x94/0x320
[ 92.650435][ T4595] ? hfs_free_extents+0x430/0x430
[ 92.655495][ T4595] ? page_zero_new_buffers+0x490/0x490
[ 92.660990][ T4595] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 92.667052][ T4595] ? lock_chain_count+0x20/0x20
[ 92.671953][ T4595] ? do_user_addr_fault+0x694/0xc80
[ 92.677200][ T4595] ? wait_for_stable_page+0xd9/0x110
[ 92.682524][ T4595] cont_write_begin+0x598/0x7b0
[ 92.687420][ T4595] ? lockdep_hardirqs_on+0x94/0x140
[ 92.692663][ T4595] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 92.698595][ T4595] ? __get_user_nocheck_1+0x6/0x10
[ 92.703752][ T4595] hfs_write_begin+0x92/0xe0
[ 92.708385][ T4595] ? hfs_free_extents+0x430/0x430
[ 92.713449][ T4595] generic_perform_write+0x2b6/0x550
[ 92.718791][ T4595] ? grab_cache_page_write_begin+0xa0/0xa0
[ 92.724634][ T4595] ? file_remove_privs+0x5d0/0x5d0
[ 92.729789][ T4595] ? rwsem_write_trylock+0x135/0x1c0
[ 92.735115][ T4595] ? clear_nonspinnable+0x60/0x60
[ 92.740187][ T4595] __generic_file_write_iter+0x25f/0x4e0
[ 92.745869][ T4595] generic_file_write_iter+0xa6/0x1b0
[ 92.751288][ T4595] vfs_write+0x745/0xd60
[ 92.755573][ T4595] ? file_end_write+0x250/0x250
[ 92.760470][ T4595] ? __fget_files+0x40f/0x480
[ 92.765365][ T4595] ? mutex_lock_nested+0x17/0x20
[ 92.770359][ T4595] ? __fdget_pos+0x2bf/0x370
[ 92.775003][ T4595] ? ksys_write+0x71/0x260
[ 92.779583][ T4595] ksys_write+0x152/0x260
[ 92.783955][ T4595] ? __ia32_sys_read+0x80/0x80
[ 92.788772][ T4595] ? lockdep_hardirqs_on+0x94/0x140
[ 92.794020][ T4595] do_syscall_64+0x4c/0xa0
[ 92.798531][ T4595] ? clear_bhb_loop+0x30/0x80
[ 92.803256][ T4595] ? clear_bhb_loop+0x30/0x80
[ 92.807979][ T4595] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 92.813958][ T4595] RIP: 0033:0x7f6c986d1fb9
[ 92.818444][ T4595] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 92.838172][ T4595] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 92.846632][ T4595] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 92.854985][ T4595] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 92.863015][ T4595] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 92.871300][ T4595] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 92.879314][ T4595] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 92.887438][ T4595]
[ 93.024480][ T4609] loop0: detected capacity change from 0 to 64
[ 93.039756][ T4609] hfs: unable to locate alternate MDB
[ 93.047281][ T4609] hfs: continuing without an alternate MDB
[ 93.059467][ T4609] FAULT_INJECTION: forcing a failure.
[ 93.059467][ T4609] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 93.074420][ T4609] CPU: 1 PID: 4609 Comm: syz-executor.0 Not tainted syzkaller #0
[ 93.082199][ T4609] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 93.092291][ T4609] Call Trace:
[ 93.095692][ T4609]
[ 93.098655][ T4609] dump_stack_lvl+0x188/0x250
[ 93.103374][ T4609] ? show_regs_print_info+0x20/0x20
[ 93.108618][ T4609] ? load_image+0x400/0x400
[ 93.113162][ T4609] ? __lock_acquire+0x7d10/0x7d10
[ 93.118238][ T4609] should_fail+0x38c/0x4c0
[ 93.122735][ T4609] prepare_alloc_pages+0x1e4/0x5f0
[ 93.127910][ T4609] __alloc_pages+0x11b/0x480
[ 93.132543][ T4609] ? zone_statistics+0x170/0x170
[ 93.137523][ T4609] ? do_raw_spin_lock+0x128/0x2f0
[ 93.142602][ T4609] ? alloc_pages+0x438/0x550
[ 93.147236][ T4609] __page_cache_alloc+0xce/0x440
[ 93.152229][ T4609] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 93.157909][ T4609] ? xas_descend+0x210/0x3b0
[ 93.162540][ T4609] ? xas_load+0x127/0x140
[ 93.166912][ T4609] pagecache_get_page+0x9b6/0xf10
[ 93.172074][ T4609] ? page_cache_prev_miss+0x380/0x380
[ 93.177569][ T4609] ? mark_lock+0x94/0x320
[ 93.181943][ T4609] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 93.187971][ T4609] ? lock_chain_count+0x20/0x20
[ 93.192867][ T4609] ? do_user_addr_fault+0x694/0xc80
[ 93.198111][ T4609] grab_cache_page_write_begin+0x5c/0xa0
[ 93.203793][ T4609] cont_write_begin+0x578/0x7b0
[ 93.208685][ T4609] ? lockdep_hardirqs_on+0x94/0x140
[ 93.213941][ T4609] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 93.219916][ T4609] ? __get_user_nocheck_1+0x6/0x10
[ 93.225076][ T4609] hfs_write_begin+0x92/0xe0
[ 93.229710][ T4609] ? hfs_free_extents+0x430/0x430
[ 93.234814][ T4609] generic_perform_write+0x2b6/0x550
[ 93.240194][ T4609] ? grab_cache_page_write_begin+0xa0/0xa0
[ 93.246053][ T4609] ? file_remove_privs+0x5d0/0x5d0
[ 93.251217][ T4609] ? rwsem_write_trylock+0x135/0x1c0
[ 93.256546][ T4609] ? clear_nonspinnable+0x60/0x60
[ 93.261616][ T4609] __generic_file_write_iter+0x25f/0x4e0
[ 93.267309][ T4609] generic_file_write_iter+0xa6/0x1b0
[ 93.272723][ T4609] vfs_write+0x745/0xd60
[ 93.277031][ T4609] ? file_end_write+0x250/0x250
[ 93.281936][ T4609] ? __fget_files+0x40f/0x480
[ 93.286671][ T4609] ? mutex_lock_nested+0x17/0x20
[ 93.291654][ T4609] ? __fdget_pos+0x2bf/0x370
[ 93.296278][ T4609] ? ksys_write+0x71/0x260
[ 93.300771][ T4609] ksys_write+0x152/0x260
[ 93.305145][ T4609] ? __ia32_sys_read+0x80/0x80
[ 93.309955][ T4609] ? lockdep_hardirqs_on+0x94/0x140
[ 93.315270][ T4609] do_syscall_64+0x4c/0xa0
[ 93.319734][ T4609] ? clear_bhb_loop+0x30/0x80
[ 93.324449][ T4609] ? clear_bhb_loop+0x30/0x80
[ 93.329172][ T4609] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 93.335100][ T4609] RIP: 0033:0x7f6c986d1fb9
[ 93.339556][ T4609] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 93.359376][ T4609] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 93.368010][ T4609] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 93.376113][ T4609] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 93.384215][ T4609] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 93.392320][ T4609] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 93.400419][ T4609] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 93.408450][ T4609]
[ 93.522838][ T4621] loop0: detected capacity change from 0 to 64
[ 93.534145][ T4621] hfs: unable to locate alternate MDB
[ 93.540756][ T4621] hfs: continuing without an alternate MDB
[ 93.554281][ T4621] FAULT_INJECTION: forcing a failure.
[ 93.554281][ T4621] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 93.570089][ T4621] CPU: 1 PID: 4621 Comm: syz-executor.0 Not tainted syzkaller #0
[ 93.577870][ T4621] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 93.587975][ T4621] Call Trace:
[ 93.591291][ T4621]
[ 93.594289][ T4621] dump_stack_lvl+0x188/0x250
[ 93.599016][ T4621] ? show_regs_print_info+0x20/0x20
[ 93.604265][ T4621] ? load_image+0x400/0x400
[ 93.608816][ T4621] ? __lock_acquire+0x7d10/0x7d10
[ 93.613890][ T4621] should_fail+0x38c/0x4c0
[ 93.618360][ T4621] prepare_alloc_pages+0x1e4/0x5f0
[ 93.623533][ T4621] __alloc_pages+0x11b/0x480
[ 93.628173][ T4621] ? zone_statistics+0x170/0x170
[ 93.633218][ T4621] ? do_raw_spin_lock+0x128/0x2f0
[ 93.638285][ T4621] ? alloc_pages+0x438/0x550
[ 93.642922][ T4621] __page_cache_alloc+0xce/0x440
[ 93.647908][ T4621] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 93.653406][ T4621] ? xas_descend+0x210/0x3b0
[ 93.658074][ T4621] ? xas_load+0x127/0x140
[ 93.662541][ T4621] pagecache_get_page+0x9b6/0xf10
[ 93.667612][ T4621] ? page_cache_prev_miss+0x380/0x380
[ 93.673021][ T4621] ? mark_lock+0x94/0x320
[ 93.677395][ T4621] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 93.683422][ T4621] ? lock_chain_count+0x20/0x20
[ 93.688835][ T4621] ? do_user_addr_fault+0x694/0xc80
[ 93.694164][ T4621] grab_cache_page_write_begin+0x5c/0xa0
[ 93.699994][ T4621] cont_write_begin+0x578/0x7b0
[ 93.704896][ T4621] ? lockdep_hardirqs_on+0x94/0x140
[ 93.710149][ T4621] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 93.716162][ T4621] ? __get_user_nocheck_1+0x6/0x10
[ 93.721322][ T4621] hfs_write_begin+0x92/0xe0
[ 93.725961][ T4621] ? hfs_free_extents+0x430/0x430
[ 93.731029][ T4621] generic_perform_write+0x2b6/0x550
[ 93.736375][ T4621] ? grab_cache_page_write_begin+0xa0/0xa0
[ 93.742223][ T4621] ? file_remove_privs+0x5d0/0x5d0
[ 93.747382][ T4621] ? rwsem_write_trylock+0x135/0x1c0
[ 93.752707][ T4621] ? clear_nonspinnable+0x60/0x60
[ 93.757772][ T4621] __generic_file_write_iter+0x25f/0x4e0
[ 93.763450][ T4621] generic_file_write_iter+0xa6/0x1b0
[ 93.768869][ T4621] vfs_write+0x745/0xd60
[ 93.773162][ T4621] ? file_end_write+0x250/0x250
[ 93.778086][ T4621] ? __fget_files+0x40f/0x480
[ 93.782807][ T4621] ? mutex_lock_nested+0x17/0x20
[ 93.787791][ T4621] ? __fdget_pos+0x2bf/0x370
[ 93.792414][ T4621] ? ksys_write+0x71/0x260
[ 93.796886][ T4621] ksys_write+0x152/0x260
[ 93.801261][ T4621] ? __ia32_sys_read+0x80/0x80
[ 93.806075][ T4621] ? lockdep_hardirqs_on+0x94/0x140
[ 93.811347][ T4621] do_syscall_64+0x4c/0xa0
[ 93.815795][ T4621] ? clear_bhb_loop+0x30/0x80
[ 93.820499][ T4621] ? clear_bhb_loop+0x30/0x80
[ 93.825218][ T4621] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 93.831149][ T4621] RIP: 0033:0x7f6c986d1fb9
[ 93.835602][ T4621] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 93.855244][ T4621] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 93.863711][ T4621] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 93.871823][ T4621] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 93.879829][ T4621] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 93.887838][ T4621] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 93.895882][ T4621] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 93.903930][ T4621]
[ 93.990002][ T4631] loop0: detected capacity change from 0 to 64
[ 94.002349][ T4631] hfs: unable to locate alternate MDB
[ 94.008913][ T4631] hfs: continuing without an alternate MDB
[ 94.030872][ T4631] FAULT_INJECTION: forcing a failure.
[ 94.030872][ T4631] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 94.044373][ T4631] CPU: 0 PID: 4631 Comm: syz-executor.0 Not tainted syzkaller #0
[ 94.052136][ T4631] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 94.062274][ T4631] Call Trace:
[ 94.065731][ T4631]
[ 94.068698][ T4631] dump_stack_lvl+0x188/0x250
[ 94.073416][ T4631] ? show_regs_print_info+0x20/0x20
[ 94.078667][ T4631] ? load_image+0x400/0x400
[ 94.083216][ T4631] ? __lock_acquire+0x7d10/0x7d10
[ 94.088296][ T4631] should_fail+0x38c/0x4c0
[ 94.092757][ T4631] prepare_alloc_pages+0x1e4/0x5f0
[ 94.097929][ T4631] __alloc_pages+0x11b/0x480
[ 94.102559][ T4631] ? zone_statistics+0x170/0x170
[ 94.107547][ T4631] ? do_raw_spin_lock+0x128/0x2f0
[ 94.112618][ T4631] ? alloc_pages+0x438/0x550
[ 94.117256][ T4631] __page_cache_alloc+0xce/0x440
[ 94.122231][ T4631] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 94.127930][ T4631] ? xas_descend+0x210/0x3b0
[ 94.132565][ T4631] ? xas_load+0x127/0x140
[ 94.136944][ T4631] pagecache_get_page+0x9b6/0xf10
[ 94.142045][ T4631] ? page_cache_prev_miss+0x380/0x380
[ 94.147450][ T4631] ? mark_lock+0x94/0x320
[ 94.151818][ T4631] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 94.157843][ T4631] ? lock_chain_count+0x20/0x20
[ 94.162828][ T4631] ? do_user_addr_fault+0x694/0xc80
[ 94.168089][ T4631] grab_cache_page_write_begin+0x5c/0xa0
[ 94.173851][ T4631] cont_write_begin+0x578/0x7b0
[ 94.178753][ T4631] ? lockdep_hardirqs_on+0x94/0x140
[ 94.183996][ T4631] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 94.189943][ T4631] ? __get_user_nocheck_1+0x6/0x10
[ 94.195109][ T4631] hfs_write_begin+0x92/0xe0
[ 94.199731][ T4631] ? hfs_free_extents+0x430/0x430
[ 94.204786][ T4631] generic_perform_write+0x2b6/0x550
[ 94.210135][ T4631] ? grab_cache_page_write_begin+0xa0/0xa0
[ 94.215980][ T4631] ? file_remove_privs+0x5d0/0x5d0
[ 94.221322][ T4631] ? rwsem_write_trylock+0x135/0x1c0
[ 94.226655][ T4631] ? clear_nonspinnable+0x60/0x60
[ 94.231724][ T4631] __generic_file_write_iter+0x25f/0x4e0
[ 94.237506][ T4631] generic_file_write_iter+0xa6/0x1b0
[ 94.242923][ T4631] vfs_write+0x745/0xd60
[ 94.247206][ T4631] ? file_end_write+0x250/0x250
[ 94.252100][ T4631] ? __fget_files+0x40f/0x480
[ 94.256858][ T4631] ? mutex_lock_nested+0x17/0x20
[ 94.261929][ T4631] ? __fdget_pos+0x2bf/0x370
[ 94.266655][ T4631] ? ksys_write+0x71/0x260
[ 94.271131][ T4631] ksys_write+0x152/0x260
[ 94.275531][ T4631] ? __ia32_sys_read+0x80/0x80
[ 94.280337][ T4631] ? lockdep_hardirqs_on+0x94/0x140
[ 94.285585][ T4631] do_syscall_64+0x4c/0xa0
[ 94.290140][ T4631] ? clear_bhb_loop+0x30/0x80
[ 94.294853][ T4631] ? clear_bhb_loop+0x30/0x80
[ 94.299739][ T4631] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 94.305686][ T4631] RIP: 0033:0x7f6c986d1fb9
[ 94.310161][ T4631] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 94.330185][ T4631] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 94.338869][ T4631] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 94.346967][ T4631] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 94.354977][ T4631] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 94.363088][ T4631] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 94.371099][ T4631] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 94.379385][ T4631]
[ 94.406283][ T23] Bluetooth: hci0: command 0x0419 tx timeout
[ 94.443958][ T4642] loop0: detected capacity change from 0 to 64
[ 94.455493][ T4642] hfs: unable to locate alternate MDB
[ 94.461851][ T4642] hfs: continuing without an alternate MDB
[ 94.475507][ T4642] FAULT_INJECTION: forcing a failure.
[ 94.475507][ T4642] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 94.496952][ T4642] CPU: 1 PID: 4642 Comm: syz-executor.0 Not tainted syzkaller #0
[ 94.504735][ T4642] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 94.514825][ T4642] Call Trace:
[ 94.518147][ T4642]
[ 94.521105][ T4642] dump_stack_lvl+0x188/0x250
[ 94.525922][ T4642] ? show_regs_print_info+0x20/0x20
[ 94.531253][ T4642] ? load_image+0x400/0x400
[ 94.535787][ T4642] ? __lock_acquire+0x7d10/0x7d10
[ 94.540836][ T4642] should_fail+0x38c/0x4c0
[ 94.545297][ T4642] prepare_alloc_pages+0x1e4/0x5f0
[ 94.550454][ T4642] __alloc_pages+0x11b/0x480
[ 94.555061][ T4642] ? zone_statistics+0x170/0x170
[ 94.560019][ T4642] ? do_raw_spin_lock+0x128/0x2f0
[ 94.565067][ T4642] ? alloc_pages+0x438/0x550
[ 94.569682][ T4642] __page_cache_alloc+0xce/0x440
[ 94.574686][ T4642] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 94.580161][ T4642] ? xas_descend+0x210/0x3b0
[ 94.584773][ T4642] ? xas_load+0x127/0x140
[ 94.589127][ T4642] pagecache_get_page+0x9b6/0xf10
[ 94.594175][ T4642] ? page_cache_prev_miss+0x380/0x380
[ 94.599743][ T4642] ? mark_lock+0x94/0x320
[ 94.604099][ T4642] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 94.610110][ T4642] ? lock_chain_count+0x20/0x20
[ 94.614987][ T4642] ? do_user_addr_fault+0x694/0xc80
[ 94.620209][ T4642] grab_cache_page_write_begin+0x5c/0xa0
[ 94.625879][ T4642] cont_write_begin+0x578/0x7b0
[ 94.630769][ T4642] ? lockdep_hardirqs_on+0x94/0x140
[ 94.635992][ T4642] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 94.641907][ T4642] ? __get_user_nocheck_1+0x6/0x10
[ 94.647047][ T4642] hfs_write_begin+0x92/0xe0
[ 94.651657][ T4642] ? hfs_free_extents+0x430/0x430
[ 94.656698][ T4642] generic_perform_write+0x2b6/0x550
[ 94.662016][ T4642] ? grab_cache_page_write_begin+0xa0/0xa0
[ 94.667844][ T4642] ? file_remove_privs+0x5d0/0x5d0
[ 94.672989][ T4642] ? rwsem_write_trylock+0x135/0x1c0
[ 94.678294][ T4642] ? clear_nonspinnable+0x60/0x60
[ 94.683342][ T4642] __generic_file_write_iter+0x25f/0x4e0
[ 94.689082][ T4642] generic_file_write_iter+0xa6/0x1b0
[ 94.694473][ T4642] vfs_write+0x745/0xd60
[ 94.698739][ T4642] ? file_end_write+0x250/0x250
[ 94.703617][ T4642] ? __fget_files+0x40f/0x480
[ 94.708325][ T4642] ? mutex_lock_nested+0x17/0x20
[ 94.713280][ T4642] ? __fdget_pos+0x2bf/0x370
[ 94.717889][ T4642] ? ksys_write+0x71/0x260
[ 94.722329][ T4642] ksys_write+0x152/0x260
[ 94.726678][ T4642] ? __ia32_sys_read+0x80/0x80
[ 94.731470][ T4642] ? lockdep_hardirqs_on+0x94/0x140
[ 94.736692][ T4642] do_syscall_64+0x4c/0xa0
[ 94.741134][ T4642] ? clear_bhb_loop+0x30/0x80
[ 94.745831][ T4642] ? clear_bhb_loop+0x30/0x80
[ 94.750536][ T4642] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 94.756448][ T4642] RIP: 0033:0x7f6c986d1fb9
[ 94.761060][ T4642] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 94.780773][ T4642] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 94.789209][ T4642] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 94.797202][ T4642] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 94.805187][ T4642] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 94.813195][ T4642] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 94.821293][ T4642] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 94.829649][ T4642]
[ 94.912088][ T4648] loop0: detected capacity change from 0 to 64
[ 94.924370][ T4648] hfs: unable to locate alternate MDB
[ 94.931833][ T4648] hfs: continuing without an alternate MDB
[ 94.967736][ T4648] FAULT_INJECTION: forcing a failure.
[ 94.967736][ T4648] name fail_usercopy, interval 1, probability 0, space 0, times 0
[ 94.981319][ T4648] CPU: 0 PID: 4648 Comm: syz-executor.0 Not tainted syzkaller #0
[ 94.989089][ T4648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 94.999327][ T4648] Call Trace:
[ 95.002677][ T4648]
[ 95.005642][ T4648] dump_stack_lvl+0x188/0x250
[ 95.010565][ T4648] ? show_regs_print_info+0x20/0x20
[ 95.016000][ T4648] ? load_image+0x400/0x400
[ 95.020550][ T4648] ? hfs_free_extents+0x430/0x430
[ 95.025611][ T4648] ? page_zero_new_buffers+0x490/0x490
[ 95.031208][ T4648] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 95.037232][ T4648] ? lock_chain_count+0x20/0x20
[ 95.042126][ T4648] should_fail+0x38c/0x4c0
[ 95.046585][ T4648] copy_page_from_iter_atomic+0x43a/0x1540
[ 95.052450][ T4648] ? pipe_zero+0x370/0x370
[ 95.057008][ T4648] ? __get_user_nocheck_1+0x6/0x10
[ 95.062257][ T4648] ? hfs_write_begin+0x92/0xe0
[ 95.067065][ T4648] ? hfs_free_extents+0x430/0x430
[ 95.072135][ T4648] ? hfs_write_begin+0xac/0xe0
[ 95.077033][ T4648] generic_perform_write+0x30b/0x550
[ 95.082380][ T4648] ? grab_cache_page_write_begin+0xa0/0xa0
[ 95.088253][ T4648] ? file_remove_privs+0x5d0/0x5d0
[ 95.094107][ T4648] ? rwsem_write_trylock+0x135/0x1c0
[ 95.099634][ T4648] ? clear_nonspinnable+0x60/0x60
[ 95.104743][ T4648] __generic_file_write_iter+0x25f/0x4e0
[ 95.110426][ T4648] generic_file_write_iter+0xa6/0x1b0
[ 95.116023][ T4648] vfs_write+0x745/0xd60
[ 95.120317][ T4648] ? file_end_write+0x250/0x250
[ 95.125219][ T4648] ? __fget_files+0x40f/0x480
[ 95.129952][ T4648] ? mutex_lock_nested+0x17/0x20
[ 95.134930][ T4648] ? __fdget_pos+0x2bf/0x370
[ 95.139564][ T4648] ? ksys_write+0x71/0x260
[ 95.144025][ T4648] ksys_write+0x152/0x260
[ 95.148405][ T4648] ? __ia32_sys_read+0x80/0x80
[ 95.153299][ T4648] ? lockdep_hardirqs_on+0x94/0x140
[ 95.158540][ T4648] do_syscall_64+0x4c/0xa0
[ 95.162999][ T4648] ? clear_bhb_loop+0x30/0x80
[ 95.167712][ T4648] ? clear_bhb_loop+0x30/0x80
[ 95.172437][ T4648] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 95.178376][ T4648] RIP: 0033:0x7f6c986d1fb9
[ 95.182840][ T4648] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 95.202483][ T4648] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 95.211052][ T4648] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 95.219218][ T4648] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 95.227234][ T4648] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 95.235254][ T4648] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 95.243259][ T4648] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 95.251284][ T4648]
[ 95.342527][ T4659] loop0: detected capacity change from 0 to 64
[ 95.355152][ T4659] hfs: unable to locate alternate MDB
[ 95.373538][ T4659] hfs: continuing without an alternate MDB
[ 95.385055][ T4659] FAULT_INJECTION: forcing a failure.
[ 95.385055][ T4659] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 95.398898][ T4659] CPU: 0 PID: 4659 Comm: syz-executor.0 Not tainted syzkaller #0
[ 95.406658][ T4659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 95.416838][ T4659] Call Trace:
[ 95.420151][ T4659]
[ 95.423113][ T4659] dump_stack_lvl+0x188/0x250
[ 95.427833][ T4659] ? show_regs_print_info+0x20/0x20
[ 95.433093][ T4659] ? load_image+0x400/0x400
[ 95.437637][ T4659] ? __lock_acquire+0x7d10/0x7d10
[ 95.442713][ T4659] should_fail+0x38c/0x4c0
[ 95.447278][ T4659] prepare_alloc_pages+0x1e4/0x5f0
[ 95.452447][ T4659] __alloc_pages+0x11b/0x480
[ 95.457082][ T4659] ? zone_statistics+0x170/0x170
[ 95.462072][ T4659] ? do_raw_spin_lock+0x128/0x2f0
[ 95.467143][ T4659] ? alloc_pages+0x438/0x550
[ 95.471777][ T4659] __page_cache_alloc+0xce/0x440
[ 95.476758][ T4659] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 95.482261][ T4659] ? xas_descend+0x210/0x3b0
[ 95.486890][ T4659] ? xas_load+0x127/0x140
[ 95.491262][ T4659] pagecache_get_page+0x9b6/0xf10
[ 95.496346][ T4659] ? page_cache_prev_miss+0x380/0x380
[ 95.501758][ T4659] ? mark_lock+0x94/0x320
[ 95.506312][ T4659] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 95.512340][ T4659] ? lock_chain_count+0x20/0x20
[ 95.517228][ T4659] ? do_user_addr_fault+0x694/0xc80
[ 95.522474][ T4659] grab_cache_page_write_begin+0x5c/0xa0
[ 95.528280][ T4659] cont_write_begin+0x578/0x7b0
[ 95.533177][ T4659] ? lockdep_hardirqs_on+0x94/0x140
[ 95.538429][ T4659] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 95.544378][ T4659] ? __get_user_nocheck_1+0x6/0x10
[ 95.549539][ T4659] hfs_write_begin+0x92/0xe0
[ 95.554277][ T4659] ? hfs_free_extents+0x430/0x430
[ 95.559340][ T4659] generic_perform_write+0x2b6/0x550
[ 95.564833][ T4659] ? grab_cache_page_write_begin+0xa0/0xa0
[ 95.570742][ T4659] ? file_remove_privs+0x5d0/0x5d0
[ 95.575904][ T4659] ? rwsem_write_trylock+0x135/0x1c0
[ 95.581233][ T4659] ? clear_nonspinnable+0x60/0x60
[ 95.586297][ T4659] __generic_file_write_iter+0x25f/0x4e0
[ 95.591974][ T4659] generic_file_write_iter+0xa6/0x1b0
[ 95.597395][ T4659] vfs_write+0x745/0xd60
[ 95.601714][ T4659] ? file_end_write+0x250/0x250
[ 95.606610][ T4659] ? __fget_files+0x40f/0x480
[ 95.611343][ T4659] ? mutex_lock_nested+0x17/0x20
[ 95.616367][ T4659] ? __fdget_pos+0x2bf/0x370
[ 95.620991][ T4659] ? ksys_write+0x71/0x260
[ 95.625452][ T4659] ksys_write+0x152/0x260
[ 95.629840][ T4659] ? __ia32_sys_read+0x80/0x80
[ 95.634734][ T4659] ? lockdep_hardirqs_on+0x94/0x140
[ 95.639987][ T4659] do_syscall_64+0x4c/0xa0
[ 95.644440][ T4659] ? clear_bhb_loop+0x30/0x80
[ 95.649153][ T4659] ? clear_bhb_loop+0x30/0x80
[ 95.653868][ T4659] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 95.659911][ T4659] RIP: 0033:0x7f6c986d1fb9
[ 95.664373][ T4659] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 95.684107][ T4659] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 95.692562][ T4659] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 95.700569][ T4659] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 95.709081][ T4659] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 95.717119][ T4659] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 95.725127][ T4659] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 95.733158][ T4659]
[ 95.865079][ T4672] loop0: detected capacity change from 0 to 64
[ 95.881928][ T4672] hfs: unable to locate alternate MDB
[ 95.887650][ T4672] hfs: continuing without an alternate MDB
[ 95.904180][ T4672] FAULT_INJECTION: forcing a failure.
[ 95.904180][ T4672] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 95.921186][ T4672] CPU: 0 PID: 4672 Comm: syz-executor.0 Not tainted syzkaller #0
[ 95.928973][ T4672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 95.939158][ T4672] Call Trace:
[ 95.942484][ T4672]
[ 95.945443][ T4672] dump_stack_lvl+0x188/0x250
[ 95.950167][ T4672] ? show_regs_print_info+0x20/0x20
[ 95.955407][ T4672] ? load_image+0x400/0x400
[ 95.959949][ T4672] ? __lock_acquire+0x7d10/0x7d10
[ 95.965031][ T4672] should_fail+0x38c/0x4c0
[ 95.969498][ T4672] prepare_alloc_pages+0x1e4/0x5f0
[ 95.974696][ T4672] __alloc_pages+0x11b/0x480
[ 95.979335][ T4672] ? zone_statistics+0x170/0x170
[ 95.984329][ T4672] ? do_raw_spin_lock+0x128/0x2f0
[ 95.989493][ T4672] ? alloc_pages+0x438/0x550
[ 95.994132][ T4672] __page_cache_alloc+0xce/0x440
[ 95.999108][ T4672] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 96.004612][ T4672] ? xas_descend+0x210/0x3b0
[ 96.009247][ T4672] ? xas_load+0x127/0x140
[ 96.013623][ T4672] pagecache_get_page+0x9b6/0xf10
[ 96.018687][ T4672] ? page_cache_prev_miss+0x380/0x380
[ 96.024101][ T4672] ? mark_lock+0x94/0x320
[ 96.028477][ T4672] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 96.034626][ T4672] ? lock_chain_count+0x20/0x20
[ 96.039512][ T4672] ? do_user_addr_fault+0x694/0xc80
[ 96.044980][ T4672] grab_cache_page_write_begin+0x5c/0xa0
[ 96.050748][ T4672] cont_write_begin+0x578/0x7b0
[ 96.056039][ T4672] ? lockdep_hardirqs_on+0x94/0x140
[ 96.061296][ T4672] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 96.067238][ T4672] ? __get_user_nocheck_1+0x6/0x10
[ 96.072395][ T4672] hfs_write_begin+0x92/0xe0
[ 96.077027][ T4672] ? hfs_free_extents+0x430/0x430
[ 96.082098][ T4672] generic_perform_write+0x2b6/0x550
[ 96.087447][ T4672] ? grab_cache_page_write_begin+0xa0/0xa0
[ 96.093295][ T4672] ? file_remove_privs+0x5d0/0x5d0
[ 96.098457][ T4672] ? rwsem_write_trylock+0x135/0x1c0
[ 96.103778][ T4672] ? clear_nonspinnable+0x60/0x60
[ 96.108928][ T4672] __generic_file_write_iter+0x25f/0x4e0
[ 96.114697][ T4672] generic_file_write_iter+0xa6/0x1b0
[ 96.120139][ T4672] vfs_write+0x745/0xd60
[ 96.124423][ T4672] ? file_end_write+0x250/0x250
[ 96.129311][ T4672] ? __fget_files+0x40f/0x480
[ 96.134020][ T4672] ? mutex_lock_nested+0x17/0x20
[ 96.139147][ T4672] ? __fdget_pos+0x2bf/0x370
[ 96.143770][ T4672] ? ksys_write+0x71/0x260
[ 96.148216][ T4672] ksys_write+0x152/0x260
[ 96.152578][ T4672] ? __ia32_sys_read+0x80/0x80
[ 96.157364][ T4672] ? lockdep_hardirqs_on+0x94/0x140
[ 96.162604][ T4672] do_syscall_64+0x4c/0xa0
[ 96.167060][ T4672] ? clear_bhb_loop+0x30/0x80
[ 96.171761][ T4672] ? clear_bhb_loop+0x30/0x80
[ 96.176461][ T4672] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 96.182382][ T4672] RIP: 0033:0x7f6c986d1fb9
[ 96.186837][ T4672] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 96.206625][ T4672] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
2026/04/09 21:01:00 executed programs: 17
[ 96.215079][ T4672] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 96.223197][ T4672] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 96.231201][ T4672] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 96.239210][ T4672] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 96.247346][ T4672] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 96.255362][ T4672]
[ 96.358138][ T4681] loop0: detected capacity change from 0 to 64
[ 96.372983][ T4681] hfs: unable to locate alternate MDB
[ 96.389221][ T4681] hfs: continuing without an alternate MDB
[ 96.431595][ T4681] FAULT_INJECTION: forcing a failure.
[ 96.431595][ T4681] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 96.459019][ T4681] CPU: 1 PID: 4681 Comm: syz-executor.0 Not tainted syzkaller #0
[ 96.466813][ T4681] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 96.477006][ T4681] Call Trace:
[ 96.480374][ T4681]
[ 96.483339][ T4681] dump_stack_lvl+0x188/0x250
[ 96.488154][ T4681] ? show_regs_print_info+0x20/0x20
[ 96.493406][ T4681] ? load_image+0x400/0x400
[ 96.497969][ T4681] ? __lock_acquire+0x7d10/0x7d10
[ 96.503049][ T4681] should_fail+0x38c/0x4c0
[ 96.507520][ T4681] prepare_alloc_pages+0x1e4/0x5f0
[ 96.512882][ T4681] __alloc_pages+0x11b/0x480
[ 96.517517][ T4681] ? zone_statistics+0x170/0x170
[ 96.522506][ T4681] ? do_raw_spin_lock+0x128/0x2f0
[ 96.527759][ T4681] ? alloc_pages+0x438/0x550
[ 96.532471][ T4681] __page_cache_alloc+0xce/0x440
[ 96.537453][ T4681] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 96.542949][ T4681] ? xas_descend+0x210/0x3b0
[ 96.547582][ T4681] ? xas_load+0x127/0x140
[ 96.551951][ T4681] pagecache_get_page+0x9b6/0xf10
[ 96.557022][ T4681] ? page_cache_prev_miss+0x380/0x380
[ 96.562463][ T4681] ? mark_lock+0x94/0x320
[ 96.566838][ T4681] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 96.572862][ T4681] ? lock_chain_count+0x20/0x20
[ 96.577842][ T4681] ? do_user_addr_fault+0x694/0xc80
[ 96.583126][ T4681] grab_cache_page_write_begin+0x5c/0xa0
[ 96.588798][ T4681] cont_write_begin+0x578/0x7b0
[ 96.593694][ T4681] ? lockdep_hardirqs_on+0x94/0x140
[ 96.598944][ T4681] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 96.604891][ T4681] ? __get_user_nocheck_1+0x6/0x10
[ 96.610046][ T4681] hfs_write_begin+0x92/0xe0
[ 96.614699][ T4681] ? hfs_free_extents+0x430/0x430
[ 96.619768][ T4681] generic_perform_write+0x2b6/0x550
[ 96.625146][ T4681] ? grab_cache_page_write_begin+0xa0/0xa0
[ 96.631121][ T4681] ? file_remove_privs+0x5d0/0x5d0
[ 96.636370][ T4681] ? rwsem_write_trylock+0x135/0x1c0
[ 96.641788][ T4681] ? clear_nonspinnable+0x60/0x60
[ 96.647084][ T4681] __generic_file_write_iter+0x25f/0x4e0
[ 96.652774][ T4681] generic_file_write_iter+0xa6/0x1b0
[ 96.658202][ T4681] vfs_write+0x745/0xd60
[ 96.662499][ T4681] ? file_end_write+0x250/0x250
[ 96.667610][ T4681] ? __fget_files+0x40f/0x480
[ 96.672333][ T4681] ? mutex_lock_nested+0x17/0x20
[ 96.677324][ T4681] ? __fdget_pos+0x2bf/0x370
[ 96.681960][ T4681] ? ksys_write+0x71/0x260
[ 96.687284][ T4681] ksys_write+0x152/0x260
[ 96.691662][ T4681] ? __ia32_sys_read+0x80/0x80
[ 96.696468][ T4681] ? lockdep_hardirqs_on+0x94/0x140
[ 96.701836][ T4681] do_syscall_64+0x4c/0xa0
[ 96.706285][ T4681] ? clear_bhb_loop+0x30/0x80
[ 96.711006][ T4681] ? clear_bhb_loop+0x30/0x80
[ 96.715899][ T4681] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 96.721848][ T4681] RIP: 0033:0x7f6c986d1fb9
[ 96.726395][ T4681] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 96.746182][ T4681] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 96.754653][ T4681] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 96.762757][ T4681] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 96.770764][ T4681] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 96.778894][ T4681] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 96.786995][ T4681] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 96.795022][ T4681]
[ 96.883598][ T4695] loop0: detected capacity change from 0 to 64
[ 96.893461][ T4695] hfs: unable to locate alternate MDB
[ 96.901185][ T4695] hfs: continuing without an alternate MDB
[ 96.920157][ T4695] FAULT_INJECTION: forcing a failure.
[ 96.920157][ T4695] name fail_usercopy, interval 1, probability 0, space 0, times 0
[ 96.933663][ T4695] CPU: 0 PID: 4695 Comm: syz-executor.0 Not tainted syzkaller #0
[ 96.941434][ T4695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 96.951525][ T4695] Call Trace:
[ 96.954841][ T4695]
[ 96.957855][ T4695] dump_stack_lvl+0x188/0x250
[ 96.962579][ T4695] ? show_regs_print_info+0x20/0x20
[ 96.967934][ T4695] ? load_image+0x400/0x400
[ 96.972485][ T4695] ? hfs_free_extents+0x430/0x430
[ 96.977580][ T4695] ? page_zero_new_buffers+0x490/0x490
[ 96.983166][ T4695] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 96.989197][ T4695] ? lock_chain_count+0x20/0x20
[ 96.994106][ T4695] should_fail+0x38c/0x4c0
[ 96.998579][ T4695] copy_page_from_iter_atomic+0x43a/0x1540
[ 97.004458][ T4695] ? pipe_zero+0x370/0x370
[ 97.008919][ T4695] ? __get_user_nocheck_1+0x6/0x10
[ 97.014081][ T4695] ? hfs_write_begin+0x92/0xe0
[ 97.018970][ T4695] ? hfs_free_extents+0x430/0x430
[ 97.024031][ T4695] ? hfs_write_begin+0xac/0xe0
[ 97.028837][ T4695] generic_perform_write+0x30b/0x550
[ 97.034266][ T4695] ? grab_cache_page_write_begin+0xa0/0xa0
[ 97.040118][ T4695] ? file_remove_privs+0x5d0/0x5d0
[ 97.045279][ T4695] ? rwsem_write_trylock+0x135/0x1c0
[ 97.050607][ T4695] ? clear_nonspinnable+0x60/0x60
[ 97.055679][ T4695] __generic_file_write_iter+0x25f/0x4e0
[ 97.061358][ T4695] generic_file_write_iter+0xa6/0x1b0
[ 97.066876][ T4695] vfs_write+0x745/0xd60
[ 97.071167][ T4695] ? file_end_write+0x250/0x250
[ 97.076255][ T4695] ? __fget_files+0x40f/0x480
[ 97.080979][ T4695] ? mutex_lock_nested+0x17/0x20
[ 97.085961][ T4695] ? __fdget_pos+0x2bf/0x370
[ 97.090584][ T4695] ? ksys_write+0x71/0x260
[ 97.095038][ T4695] ksys_write+0x152/0x260
[ 97.099403][ T4695] ? __ia32_sys_read+0x80/0x80
[ 97.104206][ T4695] ? lockdep_hardirqs_on+0x94/0x140
[ 97.109665][ T4695] do_syscall_64+0x4c/0xa0
[ 97.114121][ T4695] ? clear_bhb_loop+0x30/0x80
[ 97.118842][ T4695] ? clear_bhb_loop+0x30/0x80
[ 97.123750][ T4695] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 97.129863][ T4695] RIP: 0033:0x7f6c986d1fb9
[ 97.134315][ T4695] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 97.153964][ T4695] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 97.162436][ T4695] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 97.170451][ T4695] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 97.178459][ T4695] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 97.186471][ T4695] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 97.194533][ T4695] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 97.202659][ T4695]
[ 97.312525][ T4704] loop0: detected capacity change from 0 to 64
[ 97.328069][ T4704] hfs: unable to locate alternate MDB
[ 97.334352][ T4704] hfs: continuing without an alternate MDB
[ 97.367502][ T4704] FAULT_INJECTION: forcing a failure.
[ 97.367502][ T4704] name fail_usercopy, interval 1, probability 0, space 0, times 0
[ 97.380829][ T4704] CPU: 1 PID: 4704 Comm: syz-executor.0 Not tainted syzkaller #0
[ 97.388592][ T4704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 97.398684][ T4704] Call Trace:
[ 97.401995][ T4704]
[ 97.404967][ T4704] dump_stack_lvl+0x188/0x250
[ 97.409774][ T4704] ? show_regs_print_info+0x20/0x20
[ 97.415036][ T4704] ? load_image+0x400/0x400
[ 97.419578][ T4704] ? hfs_free_extents+0x430/0x430
[ 97.424638][ T4704] ? page_zero_new_buffers+0x490/0x490
[ 97.430138][ T4704] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 97.436163][ T4704] ? lock_chain_count+0x20/0x20
[ 97.441057][ T4704] should_fail+0x38c/0x4c0
[ 97.445517][ T4704] copy_page_from_iter_atomic+0x43a/0x1540
[ 97.451546][ T4704] ? pipe_zero+0x370/0x370
[ 97.456010][ T4704] ? __get_user_nocheck_1+0x6/0x10
[ 97.461174][ T4704] ? hfs_write_begin+0x92/0xe0
[ 97.465980][ T4704] ? hfs_free_extents+0x430/0x430
[ 97.471145][ T4704] ? hfs_write_begin+0xac/0xe0
[ 97.475954][ T4704] generic_perform_write+0x30b/0x550
[ 97.481299][ T4704] ? grab_cache_page_write_begin+0xa0/0xa0
[ 97.487157][ T4704] ? file_remove_privs+0x5d0/0x5d0
[ 97.492325][ T4704] ? rwsem_write_trylock+0x135/0x1c0
[ 97.497697][ T4704] ? clear_nonspinnable+0x60/0x60
[ 97.502768][ T4704] __generic_file_write_iter+0x25f/0x4e0
[ 97.508452][ T4704] generic_file_write_iter+0xa6/0x1b0
[ 97.513876][ T4704] vfs_write+0x745/0xd60
[ 97.518166][ T4704] ? file_end_write+0x250/0x250
[ 97.523066][ T4704] ? __fget_files+0x40f/0x480
[ 97.527794][ T4704] ? mutex_lock_nested+0x17/0x20
[ 97.532788][ T4704] ? __fdget_pos+0x2bf/0x370
[ 97.537424][ T4704] ? ksys_write+0x71/0x260
[ 97.541887][ T4704] ksys_write+0x152/0x260
[ 97.546267][ T4704] ? __ia32_sys_read+0x80/0x80
[ 97.551086][ T4704] ? lockdep_hardirqs_on+0x94/0x140
[ 97.556420][ T4704] do_syscall_64+0x4c/0xa0
[ 97.560872][ T4704] ? clear_bhb_loop+0x30/0x80
[ 97.565594][ T4704] ? clear_bhb_loop+0x30/0x80
[ 97.570392][ T4704] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 97.576327][ T4704] RIP: 0033:0x7f6c986d1fb9
[ 97.580970][ T4704] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 97.600662][ T4704] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 97.609227][ T4704] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 97.617248][ T4704] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 97.625273][ T4704] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 97.633299][ T4704] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 97.641323][ T4704] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 97.649418][ T4704]
[ 97.749749][ T4712] hfs: unable to locate alternate MDB
[ 97.757178][ T4712] hfs: continuing without an alternate MDB
[ 97.770054][ T4712] FAULT_INJECTION: forcing a failure.
[ 97.770054][ T4712] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 97.785458][ T4712] CPU: 1 PID: 4712 Comm: syz-executor.0 Not tainted syzkaller #0
[ 97.793233][ T4712] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 97.803334][ T4712] Call Trace:
[ 97.806647][ T4712]
[ 97.809611][ T4712] dump_stack_lvl+0x188/0x250
[ 97.814334][ T4712] ? show_regs_print_info+0x20/0x20
[ 97.819571][ T4712] ? load_image+0x400/0x400
[ 97.824117][ T4712] ? __lock_acquire+0x7d10/0x7d10
[ 97.829191][ T4712] should_fail+0x38c/0x4c0
[ 97.833658][ T4712] prepare_alloc_pages+0x1e4/0x5f0
[ 97.838819][ T4712] __alloc_pages+0x11b/0x480
[ 97.843456][ T4712] ? zone_statistics+0x170/0x170
[ 97.848444][ T4712] ? do_raw_spin_lock+0x128/0x2f0
[ 97.853519][ T4712] ? alloc_pages+0x438/0x550
[ 97.858150][ T4712] __page_cache_alloc+0xce/0x440
[ 97.863306][ T4712] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 97.868805][ T4712] ? xas_descend+0x210/0x3b0
[ 97.873446][ T4712] ? xas_load+0x127/0x140
[ 97.877827][ T4712] pagecache_get_page+0x9b6/0xf10
[ 97.882903][ T4712] ? page_cache_prev_miss+0x380/0x380
[ 97.888316][ T4712] ? mark_lock+0x94/0x320
[ 97.892689][ T4712] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 97.898710][ T4712] ? lock_chain_count+0x20/0x20
[ 97.903598][ T4712] ? do_user_addr_fault+0x694/0xc80
[ 97.909031][ T4712] grab_cache_page_write_begin+0x5c/0xa0
[ 97.914717][ T4712] cont_write_begin+0x578/0x7b0
[ 97.919698][ T4712] ? lockdep_hardirqs_on+0x94/0x140
[ 97.924949][ T4712] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 97.930896][ T4712] ? __get_user_nocheck_1+0x6/0x10
[ 97.936047][ T4712] hfs_write_begin+0x92/0xe0
[ 97.940666][ T4712] ? hfs_free_extents+0x430/0x430
[ 97.945725][ T4712] generic_perform_write+0x2b6/0x550
[ 97.951066][ T4712] ? grab_cache_page_write_begin+0xa0/0xa0
[ 97.956913][ T4712] ? file_remove_privs+0x5d0/0x5d0
[ 97.962073][ T4712] ? rwsem_write_trylock+0x135/0x1c0
[ 97.967402][ T4712] ? clear_nonspinnable+0x60/0x60
[ 97.972473][ T4712] __generic_file_write_iter+0x25f/0x4e0
[ 97.978258][ T4712] generic_file_write_iter+0xa6/0x1b0
[ 97.983686][ T4712] vfs_write+0x745/0xd60
[ 97.987979][ T4712] ? file_end_write+0x250/0x250
[ 97.993052][ T4712] ? __fget_files+0x40f/0x480
[ 97.997782][ T4712] ? mutex_lock_nested+0x17/0x20
[ 98.002764][ T4712] ? __fdget_pos+0x2bf/0x370
[ 98.007390][ T4712] ? ksys_write+0x71/0x260
[ 98.012288][ T4712] ksys_write+0x152/0x260
[ 98.016656][ T4712] ? __ia32_sys_read+0x80/0x80
[ 98.021459][ T4712] ? lockdep_hardirqs_on+0x94/0x140
[ 98.026712][ T4712] do_syscall_64+0x4c/0xa0
[ 98.031168][ T4712] ? clear_bhb_loop+0x30/0x80
[ 98.035896][ T4712] ? clear_bhb_loop+0x30/0x80
[ 98.041129][ T4712] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 98.047068][ T4712] RIP: 0033:0x7f6c986d1fb9
[ 98.051525][ T4712] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 98.071168][ T4712] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 98.079727][ T4712] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 98.087845][ T4712] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 98.095863][ T4712] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 98.103880][ T4712] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 98.111985][ T4712] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 98.120018][ T4712]
[ 98.253496][ T4724] set_capacity_and_notify: 1 callbacks suppressed
[ 98.253511][ T4724] loop0: detected capacity change from 0 to 64
[ 98.271726][ T4724] hfs: unable to locate alternate MDB
[ 98.278464][ T4724] hfs: continuing without an alternate MDB
[ 98.291057][ T4724] FAULT_INJECTION: forcing a failure.
[ 98.291057][ T4724] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 98.306310][ T4724] CPU: 1 PID: 4724 Comm: syz-executor.0 Not tainted syzkaller #0
[ 98.314088][ T4724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 98.324402][ T4724] Call Trace:
[ 98.327747][ T4724]
[ 98.330712][ T4724] dump_stack_lvl+0x188/0x250
[ 98.335437][ T4724] ? show_regs_print_info+0x20/0x20
[ 98.340675][ T4724] ? load_image+0x400/0x400
[ 98.345215][ T4724] ? __lock_acquire+0x7d10/0x7d10
[ 98.350355][ T4724] should_fail+0x38c/0x4c0
[ 98.354823][ T4724] prepare_alloc_pages+0x1e4/0x5f0
[ 98.359983][ T4724] __alloc_pages+0x11b/0x480
[ 98.364619][ T4724] ? zone_statistics+0x170/0x170
[ 98.369603][ T4724] ? do_raw_spin_lock+0x128/0x2f0
[ 98.374671][ T4724] ? alloc_pages+0x438/0x550
[ 98.379316][ T4724] __page_cache_alloc+0xce/0x440
[ 98.384304][ T4724] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 98.389805][ T4724] ? xas_descend+0x210/0x3b0
[ 98.394439][ T4724] ? xas_load+0x127/0x140
[ 98.398822][ T4724] pagecache_get_page+0x9b6/0xf10
[ 98.403888][ T4724] ? page_cache_prev_miss+0x380/0x380
[ 98.409299][ T4724] ? mark_lock+0x94/0x320
[ 98.413671][ T4724] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 98.419706][ T4724] ? lock_chain_count+0x20/0x20
[ 98.424603][ T4724] ? do_user_addr_fault+0x694/0xc80
[ 98.429849][ T4724] grab_cache_page_write_begin+0x5c/0xa0
[ 98.435541][ T4724] cont_write_begin+0x578/0x7b0
[ 98.440533][ T4724] ? lockdep_hardirqs_on+0x94/0x140
[ 98.445788][ T4724] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 98.451739][ T4724] ? __get_user_nocheck_1+0x6/0x10
[ 98.456905][ T4724] hfs_write_begin+0x92/0xe0
[ 98.461541][ T4724] ? hfs_free_extents+0x430/0x430
[ 98.466618][ T4724] generic_perform_write+0x2b6/0x550
[ 98.471970][ T4724] ? grab_cache_page_write_begin+0xa0/0xa0
[ 98.477825][ T4724] ? file_remove_privs+0x5d0/0x5d0
[ 98.482990][ T4724] ? rwsem_write_trylock+0x135/0x1c0
[ 98.488322][ T4724] ? clear_nonspinnable+0x60/0x60
[ 98.493392][ T4724] __generic_file_write_iter+0x25f/0x4e0
[ 98.499075][ T4724] generic_file_write_iter+0xa6/0x1b0
[ 98.504577][ T4724] vfs_write+0x745/0xd60
[ 98.508864][ T4724] ? file_end_write+0x250/0x250
[ 98.513758][ T4724] ? __fget_files+0x40f/0x480
[ 98.518650][ T4724] ? mutex_lock_nested+0x17/0x20
[ 98.523642][ T4724] ? __fdget_pos+0x2bf/0x370
[ 98.528275][ T4724] ? ksys_write+0x71/0x260
[ 98.532730][ T4724] ksys_write+0x152/0x260
[ 98.537189][ T4724] ? __ia32_sys_read+0x80/0x80
[ 98.542002][ T4724] ? lockdep_hardirqs_on+0x94/0x140
[ 98.547255][ T4724] do_syscall_64+0x4c/0xa0
[ 98.551729][ T4724] ? clear_bhb_loop+0x30/0x80
[ 98.556454][ T4724] ? clear_bhb_loop+0x30/0x80
[ 98.561207][ T4724] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 98.567249][ T4724] RIP: 0033:0x7f6c986d1fb9
[ 98.571705][ T4724] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 98.591441][ T4724] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 98.600081][ T4724] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 98.608107][ T4724] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 98.616269][ T4724] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 98.624277][ T4724] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 98.632287][ T4724] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 98.640315][ T4724]
[ 98.700653][ T4734] loop0: detected capacity change from 0 to 64
[ 98.710757][ T4734] hfs: unable to locate alternate MDB
[ 98.716844][ T4734] hfs: continuing without an alternate MDB
[ 98.733411][ T4734] FAULT_INJECTION: forcing a failure.
[ 98.733411][ T4734] name fail_usercopy, interval 1, probability 0, space 0, times 0
[ 98.746827][ T4734] CPU: 1 PID: 4734 Comm: syz-executor.0 Not tainted syzkaller #0
[ 98.754597][ T4734] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 98.764803][ T4734] Call Trace:
[ 98.768119][ T4734]
[ 98.771087][ T4734] dump_stack_lvl+0x188/0x250
[ 98.775894][ T4734] ? show_regs_print_info+0x20/0x20
[ 98.781172][ T4734] ? load_image+0x400/0x400
[ 98.785800][ T4734] ? hfs_free_extents+0x430/0x430
[ 98.790868][ T4734] ? page_zero_new_buffers+0x490/0x490
[ 98.796375][ T4734] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 98.802404][ T4734] ? lock_chain_count+0x20/0x20
[ 98.807309][ T4734] should_fail+0x38c/0x4c0
[ 98.811772][ T4734] copy_page_from_iter_atomic+0x43a/0x1540
[ 98.817637][ T4734] ? pipe_zero+0x370/0x370
[ 98.822133][ T4734] ? __get_user_nocheck_1+0x6/0x10
[ 98.827301][ T4734] ? hfs_write_begin+0x92/0xe0
[ 98.832100][ T4734] ? hfs_free_extents+0x430/0x430
[ 98.837170][ T4734] ? hfs_write_begin+0xac/0xe0
[ 98.841976][ T4734] generic_perform_write+0x30b/0x550
[ 98.847327][ T4734] ? grab_cache_page_write_begin+0xa0/0xa0
[ 98.853349][ T4734] ? file_remove_privs+0x5d0/0x5d0
[ 98.858512][ T4734] ? rwsem_write_trylock+0x135/0x1c0
[ 98.863837][ T4734] ? clear_nonspinnable+0x60/0x60
[ 98.868906][ T4734] __generic_file_write_iter+0x25f/0x4e0
[ 98.874687][ T4734] generic_file_write_iter+0xa6/0x1b0
[ 98.880105][ T4734] vfs_write+0x745/0xd60
[ 98.884398][ T4734] ? file_end_write+0x250/0x250
[ 98.889303][ T4734] ? __fget_files+0x40f/0x480
[ 98.894149][ T4734] ? mutex_lock_nested+0x17/0x20
[ 98.899127][ T4734] ? __fdget_pos+0x2bf/0x370
[ 98.903777][ T4734] ? ksys_write+0x71/0x260
[ 98.908239][ T4734] ksys_write+0x152/0x260
[ 98.912613][ T4734] ? __ia32_sys_read+0x80/0x80
[ 98.917436][ T4734] ? lockdep_hardirqs_on+0x94/0x140
[ 98.922686][ T4734] do_syscall_64+0x4c/0xa0
[ 98.927168][ T4734] ? clear_bhb_loop+0x30/0x80
[ 98.931887][ T4734] ? clear_bhb_loop+0x30/0x80
[ 98.936609][ T4734] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 98.942545][ T4734] RIP: 0033:0x7f6c986d1fb9
[ 98.947012][ T4734] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 98.966728][ T4734] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 98.975188][ T4734] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 98.983399][ T4734] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 98.991409][ T4734] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 98.999518][ T4734] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 99.007527][ T4734] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 99.015583][ T4734]
[ 99.118314][ T4743] loop0: detected capacity change from 0 to 64
[ 99.145394][ T4743] hfs: unable to locate alternate MDB
[ 99.162126][ T4743] hfs: continuing without an alternate MDB
[ 99.186047][ T4743] FAULT_INJECTION: forcing a failure.
[ 99.186047][ T4743] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 99.201010][ T4743] CPU: 1 PID: 4743 Comm: syz-executor.0 Not tainted syzkaller #0
[ 99.208800][ T4743] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 99.218981][ T4743] Call Trace:
[ 99.222301][ T4743]
[ 99.225269][ T4743] dump_stack_lvl+0x188/0x250
[ 99.230080][ T4743] ? show_regs_print_info+0x20/0x20
[ 99.235328][ T4743] ? load_image+0x400/0x400
[ 99.240081][ T4743] ? __lock_acquire+0x7d10/0x7d10
[ 99.245153][ T4743] should_fail+0x38c/0x4c0
[ 99.249773][ T4743] prepare_alloc_pages+0x1e4/0x5f0
[ 99.254946][ T4743] __alloc_pages+0x11b/0x480
[ 99.259586][ T4743] ? zone_statistics+0x170/0x170
[ 99.264564][ T4743] ? do_raw_spin_lock+0x128/0x2f0
[ 99.269639][ T4743] ? alloc_pages+0x438/0x550
[ 99.274362][ T4743] __page_cache_alloc+0xce/0x440
[ 99.279379][ T4743] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 99.284891][ T4743] ? xas_descend+0x210/0x3b0
[ 99.289521][ T4743] ? xas_load+0x127/0x140
[ 99.293983][ T4743] pagecache_get_page+0x9b6/0xf10
[ 99.299053][ T4743] ? page_cache_prev_miss+0x380/0x380
[ 99.304504][ T4743] ? mark_lock+0x94/0x320
[ 99.308971][ T4743] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 99.315187][ T4743] ? lock_chain_count+0x20/0x20
[ 99.320097][ T4743] ? do_user_addr_fault+0x694/0xc80
[ 99.325368][ T4743] grab_cache_page_write_begin+0x5c/0xa0
[ 99.331039][ T4743] cont_write_begin+0x578/0x7b0
[ 99.336190][ T4743] ? lockdep_hardirqs_on+0x94/0x140
[ 99.341445][ T4743] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 99.347392][ T4743] ? __get_user_nocheck_1+0x6/0x10
[ 99.352544][ T4743] hfs_write_begin+0x92/0xe0
[ 99.357205][ T4743] ? hfs_free_extents+0x430/0x430
[ 99.362301][ T4743] generic_perform_write+0x2b6/0x550
[ 99.367726][ T4743] ? grab_cache_page_write_begin+0xa0/0xa0
[ 99.373583][ T4743] ? file_remove_privs+0x5d0/0x5d0
[ 99.378745][ T4743] ? rwsem_write_trylock+0x135/0x1c0
[ 99.384081][ T4743] ? clear_nonspinnable+0x60/0x60
[ 99.389161][ T4743] __generic_file_write_iter+0x25f/0x4e0
[ 99.394834][ T4743] generic_file_write_iter+0xa6/0x1b0
[ 99.400392][ T4743] vfs_write+0x745/0xd60
[ 99.404676][ T4743] ? file_end_write+0x250/0x250
[ 99.409567][ T4743] ? __fget_files+0x40f/0x480
[ 99.414285][ T4743] ? mutex_lock_nested+0x17/0x20
[ 99.419257][ T4743] ? __fdget_pos+0x2bf/0x370
[ 99.423878][ T4743] ? ksys_write+0x71/0x260
[ 99.428378][ T4743] ksys_write+0x152/0x260
[ 99.432749][ T4743] ? __ia32_sys_read+0x80/0x80
[ 99.437548][ T4743] ? lockdep_hardirqs_on+0x94/0x140
[ 99.442903][ T4743] do_syscall_64+0x4c/0xa0
[ 99.447492][ T4743] ? clear_bhb_loop+0x30/0x80
[ 99.452202][ T4743] ? clear_bhb_loop+0x30/0x80
[ 99.456914][ T4743] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 99.462844][ T4743] RIP: 0033:0x7f6c986d1fb9
[ 99.467291][ T4743] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 99.486933][ T4743] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 99.495395][ T4743] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 99.503457][ T4743] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 99.511566][ T4743] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 99.519574][ T4743] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 99.527581][ T4743] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 99.535603][ T4743]
[ 99.622698][ T4755] loop0: detected capacity change from 0 to 64
[ 99.659344][ T4755] hfs: unable to locate alternate MDB
[ 99.664860][ T4755] hfs: continuing without an alternate MDB
[ 99.682934][ T4755] FAULT_INJECTION: forcing a failure.
[ 99.682934][ T4755] name failslab, interval 1, probability 0, space 0, times 0
[ 99.698026][ T4755] CPU: 1 PID: 4755 Comm: syz-executor.0 Not tainted syzkaller #0
[ 99.705814][ T4755] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 99.715901][ T4755] Call Trace:
[ 99.719212][ T4755]
[ 99.722283][ T4755] dump_stack_lvl+0x188/0x250
[ 99.727006][ T4755] ? show_regs_print_info+0x20/0x20
[ 99.732338][ T4755] ? load_image+0x400/0x400
[ 99.736886][ T4755] ? __might_sleep+0xf0/0xf0
[ 99.741619][ T4755] ? __lock_acquire+0x7d10/0x7d10
[ 99.746734][ T4755] should_fail+0x38c/0x4c0
[ 99.751213][ T4755] should_failslab+0x5/0x20
[ 99.755865][ T4755] slab_pre_alloc_hook+0x51/0xc0
[ 99.760840][ T4755] __kmalloc_node+0x6e/0x3b0
[ 99.765598][ T4755] ? memcg_alloc_page_obj_cgroups+0x81/0x120
[ 99.771889][ T4755] memcg_alloc_page_obj_cgroups+0x81/0x120
[ 99.777750][ T4755] slab_post_alloc_hook+0xba/0x380
[ 99.782903][ T4755] ? alloc_buffer_head+0x21/0x100
[ 99.787967][ T4755] kmem_cache_alloc+0x100/0x290
[ 99.792864][ T4755] alloc_buffer_head+0x21/0x100
[ 99.797845][ T4755] alloc_page_buffers+0x341/0x600
[ 99.802911][ T4755] create_empty_buffers+0x3a/0x6d0
[ 99.808065][ T4755] create_page_buffers+0x1c4/0x320
[ 99.813221][ T4755] __block_write_begin_int+0x25f/0x15d0
[ 99.818827][ T4755] ? page_cache_prev_miss+0x380/0x380
[ 99.824243][ T4755] ? mark_lock+0x94/0x320
[ 99.828796][ T4755] ? hfs_free_extents+0x430/0x430
[ 99.834054][ T4755] ? page_zero_new_buffers+0x490/0x490
[ 99.839548][ T4755] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 99.845704][ T4755] ? lock_chain_count+0x20/0x20
[ 99.851044][ T4755] ? do_user_addr_fault+0x694/0xc80
[ 99.856423][ T4755] ? wait_for_stable_page+0xd9/0x110
[ 99.861754][ T4755] cont_write_begin+0x598/0x7b0
[ 99.866648][ T4755] ? lockdep_hardirqs_on+0x94/0x140
[ 99.871899][ T4755] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 99.877926][ T4755] ? __get_user_nocheck_1+0x6/0x10
[ 99.883085][ T4755] hfs_write_begin+0x92/0xe0
[ 99.887796][ T4755] ? hfs_free_extents+0x430/0x430
[ 99.892865][ T4755] generic_perform_write+0x2b6/0x550
[ 99.898214][ T4755] ? grab_cache_page_write_begin+0xa0/0xa0
[ 99.904061][ T4755] ? file_remove_privs+0x5d0/0x5d0
[ 99.909222][ T4755] ? rwsem_write_trylock+0x135/0x1c0
[ 99.914558][ T4755] ? clear_nonspinnable+0x60/0x60
[ 99.919621][ T4755] __generic_file_write_iter+0x25f/0x4e0
[ 99.925314][ T4755] generic_file_write_iter+0xa6/0x1b0
[ 99.930731][ T4755] vfs_write+0x745/0xd60
[ 99.935018][ T4755] ? file_end_write+0x250/0x250
[ 99.940363][ T4755] ? __fget_files+0x40f/0x480
[ 99.945089][ T4755] ? mutex_lock_nested+0x17/0x20
[ 99.950181][ T4755] ? __fdget_pos+0x2bf/0x370
[ 99.954802][ T4755] ? ksys_write+0x71/0x260
[ 99.959257][ T4755] ksys_write+0x152/0x260
[ 99.963626][ T4755] ? __ia32_sys_read+0x80/0x80
[ 99.968426][ T4755] ? lockdep_hardirqs_on+0x94/0x140
[ 99.973662][ T4755] do_syscall_64+0x4c/0xa0
[ 99.978122][ T4755] ? clear_bhb_loop+0x30/0x80
[ 99.982833][ T4755] ? clear_bhb_loop+0x30/0x80
[ 99.987549][ T4755] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 99.993480][ T4755] RIP: 0033:0x7f6c986d1fb9
[ 99.997926][ T4755] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 100.017564][ T4755] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 100.026029][ T4755] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 100.034048][ T4755] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 100.042107][ T4755] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 100.050167][ T4755] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 100.058174][ T4755] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 100.066233][ T4755]
[ 100.152604][ T4767] loop0: detected capacity change from 0 to 64
[ 100.178682][ T4767] hfs: unable to locate alternate MDB
[ 100.191294][ T4767] hfs: continuing without an alternate MDB
[ 100.218654][ T4767] FAULT_INJECTION: forcing a failure.
[ 100.218654][ T4767] name fail_usercopy, interval 1, probability 0, space 0, times 0
[ 100.232195][ T4767] CPU: 0 PID: 4767 Comm: syz-executor.0 Not tainted syzkaller #0
[ 100.240056][ T4767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 100.250255][ T4767] Call Trace:
[ 100.253585][ T4767]
[ 100.256749][ T4767] dump_stack_lvl+0x188/0x250
[ 100.261476][ T4767] ? show_regs_print_info+0x20/0x20
[ 100.266732][ T4767] ? load_image+0x400/0x400
[ 100.271283][ T4767] ? hfs_free_extents+0x430/0x430
[ 100.276433][ T4767] ? page_zero_new_buffers+0x490/0x490
[ 100.281939][ T4767] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 100.287966][ T4767] ? lock_chain_count+0x20/0x20
[ 100.292863][ T4767] should_fail+0x38c/0x4c0
[ 100.297324][ T4767] copy_page_from_iter_atomic+0x43a/0x1540
[ 100.303291][ T4767] ? pipe_zero+0x370/0x370
[ 100.307750][ T4767] ? __get_user_nocheck_1+0x6/0x10
[ 100.312904][ T4767] ? hfs_write_begin+0x92/0xe0
[ 100.317924][ T4767] ? hfs_free_extents+0x430/0x430
[ 100.323080][ T4767] ? hfs_write_begin+0xac/0xe0
[ 100.327888][ T4767] generic_perform_write+0x30b/0x550
[ 100.333234][ T4767] ? grab_cache_page_write_begin+0xa0/0xa0
[ 100.339077][ T4767] ? file_remove_privs+0x5d0/0x5d0
[ 100.344238][ T4767] ? rwsem_write_trylock+0x135/0x1c0
[ 100.349573][ T4767] ? clear_nonspinnable+0x60/0x60
[ 100.354639][ T4767] __generic_file_write_iter+0x25f/0x4e0
[ 100.360352][ T4767] generic_file_write_iter+0xa6/0x1b0
[ 100.365767][ T4767] vfs_write+0x745/0xd60
[ 100.370075][ T4767] ? file_end_write+0x250/0x250
[ 100.374976][ T4767] ? __fget_files+0x40f/0x480
[ 100.379699][ T4767] ? mutex_lock_nested+0x17/0x20
[ 100.384675][ T4767] ? __fdget_pos+0x2bf/0x370
[ 100.389303][ T4767] ? ksys_write+0x71/0x260
[ 100.393758][ T4767] ksys_write+0x152/0x260
[ 100.398140][ T4767] ? __ia32_sys_read+0x80/0x80
[ 100.402944][ T4767] ? lockdep_hardirqs_on+0x94/0x140
[ 100.408403][ T4767] do_syscall_64+0x4c/0xa0
[ 100.412945][ T4767] ? clear_bhb_loop+0x30/0x80
[ 100.417751][ T4767] ? clear_bhb_loop+0x30/0x80
[ 100.422641][ T4767] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 100.428578][ T4767] RIP: 0033:0x7f6c986d1fb9
[ 100.433123][ T4767] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 100.452792][ T4767] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 100.461254][ T4767] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 100.469272][ T4767] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 100.477317][ T4767] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 100.485339][ T4767] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 100.493599][ T4767] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 100.501713][ T4767]
[ 100.590159][ T4772] loop0: detected capacity change from 0 to 64
[ 100.603578][ T4772] hfs: unable to locate alternate MDB
[ 100.609241][ T4772] hfs: continuing without an alternate MDB
[ 100.620843][ T4772] FAULT_INJECTION: forcing a failure.
[ 100.620843][ T4772] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 100.634332][ T4772] CPU: 0 PID: 4772 Comm: syz-executor.0 Not tainted syzkaller #0
[ 100.642088][ T4772] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 100.652259][ T4772] Call Trace:
[ 100.655566][ T4772]
[ 100.658648][ T4772] dump_stack_lvl+0x188/0x250
[ 100.663362][ T4772] ? show_regs_print_info+0x20/0x20
[ 100.668589][ T4772] ? load_image+0x400/0x400
[ 100.673121][ T4772] ? __lock_acquire+0x7d10/0x7d10
[ 100.678260][ T4772] should_fail+0x38c/0x4c0
[ 100.682715][ T4772] prepare_alloc_pages+0x1e4/0x5f0
[ 100.687846][ T4772] __alloc_pages+0x11b/0x480
[ 100.692450][ T4772] ? zone_statistics+0x170/0x170
[ 100.697396][ T4772] ? do_raw_spin_lock+0x128/0x2f0
[ 100.702450][ T4772] ? alloc_pages+0x438/0x550
[ 100.707052][ T4772] __page_cache_alloc+0xce/0x440
[ 100.712006][ T4772] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 100.717473][ T4772] ? xas_descend+0x210/0x3b0
[ 100.722209][ T4772] ? xas_load+0x127/0x140
[ 100.726570][ T4772] pagecache_get_page+0x9b6/0xf10
[ 100.731603][ T4772] ? page_cache_prev_miss+0x380/0x380
[ 100.736983][ T4772] ? mark_lock+0x94/0x320
[ 100.741331][ T4772] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 100.747351][ T4772] ? lock_chain_count+0x20/0x20
[ 100.752211][ T4772] ? do_user_addr_fault+0x694/0xc80
[ 100.757510][ T4772] grab_cache_page_write_begin+0x5c/0xa0
[ 100.763159][ T4772] cont_write_begin+0x578/0x7b0
[ 100.768110][ T4772] ? lockdep_hardirqs_on+0x94/0x140
[ 100.773322][ T4772] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 100.779232][ T4772] ? __get_user_nocheck_1+0x6/0x10
[ 100.784357][ T4772] hfs_write_begin+0x92/0xe0
[ 100.788976][ T4772] ? hfs_free_extents+0x430/0x430
[ 100.794012][ T4772] generic_perform_write+0x2b6/0x550
[ 100.799424][ T4772] ? grab_cache_page_write_begin+0xa0/0xa0
[ 100.805261][ T4772] ? file_remove_privs+0x5d0/0x5d0
[ 100.810426][ T4772] ? rwsem_write_trylock+0x135/0x1c0
[ 100.815838][ T4772] ? clear_nonspinnable+0x60/0x60
[ 100.820889][ T4772] __generic_file_write_iter+0x25f/0x4e0
[ 100.826531][ T4772] generic_file_write_iter+0xa6/0x1b0
[ 100.831912][ T4772] vfs_write+0x745/0xd60
[ 100.836176][ T4772] ? file_end_write+0x250/0x250
[ 100.841059][ T4772] ? __fget_files+0x40f/0x480
[ 100.845866][ T4772] ? mutex_lock_nested+0x17/0x20
[ 100.850959][ T4772] ? __fdget_pos+0x2bf/0x370
[ 100.855564][ T4772] ? ksys_write+0x71/0x260
[ 100.859992][ T4772] ksys_write+0x152/0x260
[ 100.864342][ T4772] ? __ia32_sys_read+0x80/0x80
[ 100.869234][ T4772] ? lockdep_hardirqs_on+0x94/0x140
[ 100.874464][ T4772] do_syscall_64+0x4c/0xa0
[ 100.878909][ T4772] ? clear_bhb_loop+0x30/0x80
[ 100.883665][ T4772] ? clear_bhb_loop+0x30/0x80
[ 100.888554][ T4772] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 100.894499][ T4772] RIP: 0033:0x7f6c986d1fb9
[ 100.898958][ T4772] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 100.918580][ T4772] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 100.927022][ T4772] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 100.935070][ T4772] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 100.943091][ T4772] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 100.951096][ T4772] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 100.959078][ T4772] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 100.967086][ T4772]
[ 101.039884][ T4774] loop0: detected capacity change from 0 to 64
[ 101.058938][ T4774] hfs: unable to locate alternate MDB
[ 101.064477][ T4774] hfs: continuing without an alternate MDB
[ 101.078061][ T4774] FAULT_INJECTION: forcing a failure.
[ 101.078061][ T4774] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 101.092876][ T4774] CPU: 0 PID: 4774 Comm: syz-executor.0 Not tainted syzkaller #0
[ 101.100652][ T4774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 101.110742][ T4774] Call Trace:
[ 101.114070][ T4774]
[ 101.117039][ T4774] dump_stack_lvl+0x188/0x250
[ 101.121765][ T4774] ? show_regs_print_info+0x20/0x20
[ 101.127010][ T4774] ? load_image+0x400/0x400
[ 101.131570][ T4774] ? __lock_acquire+0x7d10/0x7d10
[ 101.136650][ T4774] should_fail+0x38c/0x4c0
[ 101.141111][ T4774] prepare_alloc_pages+0x1e4/0x5f0
[ 101.146252][ T4774] __alloc_pages+0x11b/0x480
[ 101.150852][ T4774] ? zone_statistics+0x170/0x170
[ 101.155798][ T4774] ? do_raw_spin_lock+0x128/0x2f0
[ 101.160849][ T4774] ? alloc_pages+0x438/0x550
[ 101.165450][ T4774] __page_cache_alloc+0xce/0x440
[ 101.170394][ T4774] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 101.175890][ T4774] ? xas_descend+0x210/0x3b0
[ 101.180486][ T4774] ? xas_load+0x127/0x140
[ 101.184826][ T4774] pagecache_get_page+0x9b6/0xf10
[ 101.189980][ T4774] ? page_cache_prev_miss+0x380/0x380
[ 101.195372][ T4774] ? mark_lock+0x94/0x320
[ 101.199729][ T4774] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 101.205718][ T4774] ? lock_chain_count+0x20/0x20
[ 101.210571][ T4774] ? do_user_addr_fault+0x694/0xc80
[ 101.215778][ T4774] grab_cache_page_write_begin+0x5c/0xa0
[ 101.221454][ T4774] cont_write_begin+0x578/0x7b0
[ 101.226410][ T4774] ? lockdep_hardirqs_on+0x94/0x140
[ 101.231706][ T4774] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 101.237624][ T4774] ? __get_user_nocheck_1+0x6/0x10
[ 101.242752][ T4774] hfs_write_begin+0x92/0xe0
[ 101.247347][ T4774] ? hfs_free_extents+0x430/0x430
[ 101.252385][ T4774] generic_perform_write+0x2b6/0x550
[ 101.257696][ T4774] ? grab_cache_page_write_begin+0xa0/0xa0
[ 101.263506][ T4774] ? file_remove_privs+0x5d0/0x5d0
[ 101.268646][ T4774] ? rwsem_write_trylock+0x135/0x1c0
[ 101.273941][ T4774] ? clear_nonspinnable+0x60/0x60
[ 101.278982][ T4774] __generic_file_write_iter+0x25f/0x4e0
[ 101.284631][ T4774] generic_file_write_iter+0xa6/0x1b0
[ 101.290016][ T4774] vfs_write+0x745/0xd60
[ 101.294274][ T4774] ? file_end_write+0x250/0x250
[ 101.299136][ T4774] ? __fget_files+0x40f/0x480
[ 101.303825][ T4774] ? mutex_lock_nested+0x17/0x20
[ 101.308767][ T4774] ? __fdget_pos+0x2bf/0x370
[ 101.313362][ T4774] ? ksys_write+0x71/0x260
[ 101.317786][ T4774] ksys_write+0x152/0x260
[ 101.322122][ T4774] ? __ia32_sys_read+0x80/0x80
[ 101.326890][ T4774] ? lockdep_hardirqs_on+0x94/0x140
[ 101.332130][ T4774] do_syscall_64+0x4c/0xa0
[ 101.336549][ T4774] ? clear_bhb_loop+0x30/0x80
[ 101.341227][ T4774] ? clear_bhb_loop+0x30/0x80
[ 101.345908][ T4774] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 101.351823][ T4774] RIP: 0033:0x7f6c986d1fb9
[ 101.356240][ T4774] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 101.375848][ T4774] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
2026/04/09 21:01:05 executed programs: 28
[ 101.384380][ T4774] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 101.392360][ T4774] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 101.400355][ T4774] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 101.408351][ T4774] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 101.416427][ T4774] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 101.424419][ T4774]
[ 101.514715][ T4776] loop0: detected capacity change from 0 to 64
[ 101.525001][ T4776] hfs: unable to locate alternate MDB
[ 101.531353][ T4776] hfs: continuing without an alternate MDB
[ 101.546873][ T4776] FAULT_INJECTION: forcing a failure.
[ 101.546873][ T4776] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 101.560299][ T4776] CPU: 1 PID: 4776 Comm: syz-executor.0 Not tainted syzkaller #0
[ 101.568074][ T4776] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 101.578161][ T4776] Call Trace:
[ 101.581476][ T4776]
[ 101.584449][ T4776] dump_stack_lvl+0x188/0x250
[ 101.589170][ T4776] ? show_regs_print_info+0x20/0x20
[ 101.594417][ T4776] ? load_image+0x400/0x400
[ 101.598966][ T4776] ? __lock_acquire+0x7d10/0x7d10
[ 101.604037][ T4776] should_fail+0x38c/0x4c0
[ 101.608502][ T4776] prepare_alloc_pages+0x1e4/0x5f0
[ 101.613656][ T4776] __alloc_pages+0x11b/0x480
[ 101.618308][ T4776] ? zone_statistics+0x170/0x170
[ 101.623281][ T4776] ? do_raw_spin_lock+0x128/0x2f0
[ 101.628353][ T4776] ? alloc_pages+0x438/0x550
[ 101.632993][ T4776] __page_cache_alloc+0xce/0x440
[ 101.637965][ T4776] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 101.643458][ T4776] ? xas_descend+0x210/0x3b0
[ 101.648168][ T4776] ? xas_load+0x127/0x140
[ 101.652527][ T4776] pagecache_get_page+0x9b6/0xf10
[ 101.657591][ T4776] ? page_cache_prev_miss+0x380/0x380
[ 101.663078][ T4776] ? mark_lock+0x94/0x320
[ 101.667520][ T4776] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 101.673515][ T4776] ? lock_chain_count+0x20/0x20
[ 101.678393][ T4776] ? do_user_addr_fault+0x694/0xc80
[ 101.683640][ T4776] grab_cache_page_write_begin+0x5c/0xa0
[ 101.689322][ T4776] cont_write_begin+0x578/0x7b0
[ 101.694215][ T4776] ? lockdep_hardirqs_on+0x94/0x140
[ 101.699439][ T4776] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 101.705345][ T4776] ? __get_user_nocheck_1+0x6/0x10
[ 101.710465][ T4776] hfs_write_begin+0x92/0xe0
[ 101.715080][ T4776] ? hfs_free_extents+0x430/0x430
[ 101.720108][ T4776] generic_perform_write+0x2b6/0x550
[ 101.725497][ T4776] ? grab_cache_page_write_begin+0xa0/0xa0
[ 101.731332][ T4776] ? file_remove_privs+0x5d0/0x5d0
[ 101.736471][ T4776] ? rwsem_write_trylock+0x135/0x1c0
[ 101.741785][ T4776] ? clear_nonspinnable+0x60/0x60
[ 101.746817][ T4776] __generic_file_write_iter+0x25f/0x4e0
[ 101.752497][ T4776] generic_file_write_iter+0xa6/0x1b0
[ 101.757886][ T4776] vfs_write+0x745/0xd60
[ 101.762160][ T4776] ? file_end_write+0x250/0x250
[ 101.767019][ T4776] ? __fget_files+0x40f/0x480
[ 101.771794][ T4776] ? mutex_lock_nested+0x17/0x20
[ 101.776744][ T4776] ? __fdget_pos+0x2bf/0x370
[ 101.781361][ T4776] ? ksys_write+0x71/0x260
[ 101.785783][ T4776] ksys_write+0x152/0x260
[ 101.790120][ T4776] ? __ia32_sys_read+0x80/0x80
[ 101.794913][ T4776] ? lockdep_hardirqs_on+0x94/0x140
[ 101.800135][ T4776] do_syscall_64+0x4c/0xa0
[ 101.804551][ T4776] ? clear_bhb_loop+0x30/0x80
[ 101.809240][ T4776] ? clear_bhb_loop+0x30/0x80
[ 101.813924][ T4776] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 101.819836][ T4776] RIP: 0033:0x7f6c986d1fb9
[ 101.824279][ T4776] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 101.844061][ T4776] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 101.852476][ T4776] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 101.860478][ T4776] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 101.868455][ T4776] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 101.876543][ T4776] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 101.884537][ T4776] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 101.892568][ T4776]
[ 101.988509][ T4780] loop0: detected capacity change from 0 to 64
[ 102.000036][ T4780] hfs: unable to locate alternate MDB
[ 102.005652][ T4780] hfs: continuing without an alternate MDB
[ 102.017767][ T4780] FAULT_INJECTION: forcing a failure.
[ 102.017767][ T4780] name fail_usercopy, interval 1, probability 0, space 0, times 0
[ 102.031050][ T4780] CPU: 1 PID: 4780 Comm: syz-executor.0 Not tainted syzkaller #0
[ 102.038851][ T4780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 102.048995][ T4780] Call Trace:
[ 102.052308][ T4780]
[ 102.055280][ T4780] dump_stack_lvl+0x188/0x250
[ 102.060006][ T4780] ? show_regs_print_info+0x20/0x20
[ 102.065317][ T4780] ? load_image+0x400/0x400
[ 102.069851][ T4780] ? hfs_free_extents+0x430/0x430
[ 102.074884][ T4780] ? page_zero_new_buffers+0x490/0x490
[ 102.080455][ T4780] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 102.086459][ T4780] ? lock_chain_count+0x20/0x20
[ 102.091343][ T4780] should_fail+0x38c/0x4c0
[ 102.095783][ T4780] copy_page_from_iter_atomic+0x43a/0x1540
[ 102.101626][ T4780] ? pipe_zero+0x370/0x370
[ 102.106067][ T4780] ? __get_user_nocheck_1+0x6/0x10
[ 102.111192][ T4780] ? hfs_write_begin+0x92/0xe0
[ 102.115968][ T4780] ? hfs_free_extents+0x430/0x430
[ 102.121027][ T4780] ? hfs_write_begin+0xac/0xe0
[ 102.125826][ T4780] generic_perform_write+0x30b/0x550
[ 102.131147][ T4780] ? grab_cache_page_write_begin+0xa0/0xa0
[ 102.136968][ T4780] ? file_remove_privs+0x5d0/0x5d0
[ 102.142106][ T4780] ? rwsem_write_trylock+0x135/0x1c0
[ 102.147399][ T4780] ? clear_nonspinnable+0x60/0x60
[ 102.152428][ T4780] __generic_file_write_iter+0x25f/0x4e0
[ 102.158077][ T4780] generic_file_write_iter+0xa6/0x1b0
[ 102.163487][ T4780] vfs_write+0x745/0xd60
[ 102.167770][ T4780] ? file_end_write+0x250/0x250
[ 102.172661][ T4780] ? __fget_files+0x40f/0x480
[ 102.177385][ T4780] ? mutex_lock_nested+0x17/0x20
[ 102.182361][ T4780] ? __fdget_pos+0x2bf/0x370
[ 102.186978][ T4780] ? ksys_write+0x71/0x260
[ 102.191403][ T4780] ksys_write+0x152/0x260
[ 102.195745][ T4780] ? __ia32_sys_read+0x80/0x80
[ 102.200548][ T4780] ? lockdep_hardirqs_on+0x94/0x140
[ 102.205773][ T4780] do_syscall_64+0x4c/0xa0
[ 102.210197][ T4780] ? clear_bhb_loop+0x30/0x80
[ 102.214917][ T4780] ? clear_bhb_loop+0x30/0x80
[ 102.219598][ T4780] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 102.225494][ T4780] RIP: 0033:0x7f6c986d1fb9
[ 102.229918][ T4780] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 102.249543][ T4780] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 102.258111][ T4780] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 102.266123][ T4780] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 102.274121][ T4780] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 102.282100][ T4780] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 102.290110][ T4780] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 102.298118][ T4780]
[ 102.397951][ T4782] loop0: detected capacity change from 0 to 64
[ 102.410725][ T4782] hfs: unable to locate alternate MDB
[ 102.418944][ T4782] hfs: continuing without an alternate MDB
[ 102.432966][ T4782] FAULT_INJECTION: forcing a failure.
[ 102.432966][ T4782] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[ 102.446561][ T4782] CPU: 1 PID: 4782 Comm: syz-executor.0 Not tainted syzkaller #0
[ 102.454335][ T4782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 102.464435][ T4782] Call Trace:
[ 102.467754][ T4782]
[ 102.470726][ T4782] dump_stack_lvl+0x188/0x250
[ 102.475455][ T4782] ? show_regs_print_info+0x20/0x20
[ 102.480707][ T4782] ? load_image+0x400/0x400
[ 102.485256][ T4782] ? __lock_acquire+0x7d10/0x7d10
[ 102.490344][ T4782] should_fail+0x38c/0x4c0
[ 102.494821][ T4782] prepare_alloc_pages+0x1e4/0x5f0
[ 102.499997][ T4782] __alloc_pages+0x11b/0x480
[ 102.504639][ T4782] ? zone_statistics+0x170/0x170
[ 102.509626][ T4782] ? do_raw_spin_lock+0x128/0x2f0
[ 102.514738][ T4782] ? alloc_pages+0x438/0x550
[ 102.519419][ T4782] __page_cache_alloc+0xce/0x440
[ 102.524524][ T4782] ? add_to_page_cache_lru+0x4a0/0x4a0
[ 102.530034][ T4782] ? xas_descend+0x210/0x3b0
[ 102.534672][ T4782] ? xas_load+0x127/0x140
[ 102.539136][ T4782] pagecache_get_page+0x9b6/0xf10
[ 102.544232][ T4782] ? page_cache_prev_miss+0x380/0x380
[ 102.549642][ T4782] ? mark_lock+0x94/0x320
[ 102.554013][ T4782] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 102.560038][ T4782] ? lock_chain_count+0x20/0x20
[ 102.564928][ T4782] ? do_user_addr_fault+0x694/0xc80
[ 102.570171][ T4782] grab_cache_page_write_begin+0x5c/0xa0
[ 102.575845][ T4782] cont_write_begin+0x578/0x7b0
[ 102.580729][ T4782] ? lockdep_hardirqs_on+0x94/0x140
[ 102.585975][ T4782] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 102.592002][ T4782] ? __get_user_nocheck_1+0x6/0x10
[ 102.597161][ T4782] hfs_write_begin+0x92/0xe0
[ 102.601808][ T4782] ? hfs_free_extents+0x430/0x430
[ 102.606860][ T4782] generic_perform_write+0x2b6/0x550
[ 102.612188][ T4782] ? grab_cache_page_write_begin+0xa0/0xa0
[ 102.618064][ T4782] ? file_remove_privs+0x5d0/0x5d0
[ 102.623215][ T4782] ? rwsem_write_trylock+0x135/0x1c0
[ 102.628535][ T4782] ? clear_nonspinnable+0x60/0x60
[ 102.633594][ T4782] __generic_file_write_iter+0x25f/0x4e0
[ 102.639251][ T4782] generic_file_write_iter+0xa6/0x1b0
[ 102.644663][ T4782] vfs_write+0x745/0xd60
[ 102.648920][ T4782] ? file_end_write+0x250/0x250
[ 102.653779][ T4782] ? __fget_files+0x40f/0x480
[ 102.658477][ T4782] ? mutex_lock_nested+0x17/0x20
[ 102.663456][ T4782] ? __fdget_pos+0x2bf/0x370
[ 102.668057][ T4782] ? ksys_write+0x71/0x260
[ 102.672585][ T4782] ksys_write+0x152/0x260
[ 102.676931][ T4782] ? __ia32_sys_read+0x80/0x80
[ 102.681753][ T4782] ? lockdep_hardirqs_on+0x94/0x140
[ 102.686972][ T4782] do_syscall_64+0x4c/0xa0
[ 102.691408][ T4782] ? clear_bhb_loop+0x30/0x80
[ 102.696091][ T4782] ? clear_bhb_loop+0x30/0x80
[ 102.700795][ T4782] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 102.706718][ T4782] RIP: 0033:0x7f6c986d1fb9
[ 102.711145][ T4782] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 102.730760][ T4782] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 102.739187][ T4782] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 102.747173][ T4782] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 102.755211][ T4782] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 102.763222][ T4782] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 102.771217][ T4782] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 102.779228][ T4782]
[ 102.857544][ T4784] hfs: unable to locate alternate MDB
[ 102.863206][ T4784] hfs: continuing without an alternate MDB
[ 102.875672][ T4784] FAULT_INJECTION: forcing a failure.
[ 102.875672][ T4784] name failslab, interval 1, probability 0, space 0, times 0
[ 102.889900][ T4784] CPU: 1 PID: 4784 Comm: syz-executor.0 Not tainted syzkaller #0
[ 102.897762][ T4784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 102.907848][ T4784] Call Trace:
[ 102.911195][ T4784]
[ 102.914162][ T4784] dump_stack_lvl+0x188/0x250
[ 102.918900][ T4784] ? show_regs_print_info+0x20/0x20
[ 102.924139][ T4784] ? load_image+0x400/0x400
[ 102.928688][ T4784] ? __lock_acquire+0x7d10/0x7d10
[ 102.933770][ T4784] ? __lock_acquire+0x12e8/0x7d10
[ 102.938833][ T4784] should_fail+0x38c/0x4c0
[ 102.943294][ T4784] should_failslab+0x5/0x20
[ 102.947918][ T4784] slab_pre_alloc_hook+0x51/0xc0
[ 102.953012][ T4784] __kmalloc+0x6b/0x330
[ 102.957196][ T4784] ? __hfs_bnode_create+0xf3/0xbd0
[ 102.962321][ T4784] __hfs_bnode_create+0xf3/0xbd0
[ 102.967277][ T4784] ? hfs_bnode_find+0x213/0xd30
[ 102.972186][ T4784] ? hfs_bnode_get+0x40/0x40
[ 102.976790][ T4784] ? do_raw_spin_lock+0x128/0x2f0
[ 102.981856][ T4784] ? __rwlock_init+0x140/0x140
[ 102.986642][ T4784] ? do_raw_spin_unlock+0x11d/0x230
[ 102.991867][ T4784] hfs_bnode_find+0x220/0xd30
[ 102.996566][ T4784] ? __lock_acquire+0x13bc/0x7d10
[ 103.001809][ T4784] ? hfs_bnode_unlink+0x6b0/0x6b0
[ 103.006865][ T4784] ? hfs_bmap_reserve+0x3df/0x420
[ 103.011909][ T4784] hfs_bmap_alloc+0xa6/0x670
[ 103.016704][ T4784] ? __kernel_text_address+0x9a/0x100
[ 103.022116][ T4784] ? hfs_bmap_reserve+0x420/0x420
[ 103.027167][ T4784] ? unwind_get_return_address+0x49/0x80
[ 103.032931][ T4784] ? stack_trace_save+0xf0/0xf0
[ 103.037823][ T4784] hfs_btree_inc_height+0xfd/0xac0
[ 103.042987][ T4784] ? hfs_brec_insert+0xbd0/0xbd0
[ 103.047964][ T4784] ? __mutex_trylock_common+0x155/0x260
[ 103.053549][ T4784] hfs_brec_insert+0x13a/0xbd0
[ 103.058342][ T4784] ? memset+0x1e/0x40
[ 103.062346][ T4784] ? hfs_bmap_reserve+0x3df/0x420
[ 103.067557][ T4784] ? hfs_brec_keylen+0x350/0x350
[ 103.072508][ T4784] ? mutex_lock_io_nested+0x60/0x60
[ 103.077921][ T4784] __hfs_ext_write_extent+0x2a1/0x470
[ 103.083318][ T4784] __hfs_ext_cache_extent+0x6b/0x9b0
[ 103.088634][ T4784] ? mutex_lock_nested+0x17/0x20
[ 103.093589][ T4784] ? hfs_find_init+0x15b/0x1d0
[ 103.098368][ T4784] hfs_extend_file+0x39c/0x13f0
[ 103.103235][ T4784] ? hfs_get_block+0xc50/0xc50
[ 103.108029][ T4784] ? __might_sleep+0xf0/0xf0
[ 103.112645][ T4784] ? clean_bdev_aliases+0x769/0x8a0
[ 103.117896][ T4784] hfs_get_block+0x40f/0xc50
[ 103.122528][ T4784] ? hfs_free_extents+0x430/0x430
[ 103.127566][ T4784] ? do_raw_spin_unlock+0x11d/0x230
[ 103.132779][ T4784] ? create_page_buffers+0x238/0x320
[ 103.138110][ T4784] __block_write_begin_int+0x565/0x15d0
[ 103.143853][ T4784] ? hfs_free_extents+0x430/0x430
[ 103.148912][ T4784] ? page_zero_new_buffers+0x490/0x490
[ 103.154382][ T4784] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 103.160382][ T4784] ? lock_chain_count+0x20/0x20
[ 103.165270][ T4784] ? do_user_addr_fault+0x694/0xc80
[ 103.170508][ T4784] ? wait_for_stable_page+0xd9/0x110
[ 103.175864][ T4784] cont_write_begin+0x598/0x7b0
[ 103.180741][ T4784] ? lockdep_hardirqs_on+0x94/0x140
[ 103.186166][ T4784] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 103.192105][ T4784] ? __get_user_nocheck_1+0x6/0x10
[ 103.197257][ T4784] hfs_write_begin+0x92/0xe0
[ 103.201884][ T4784] ? hfs_free_extents+0x430/0x430
[ 103.206936][ T4784] generic_perform_write+0x2b6/0x550
[ 103.212295][ T4784] ? grab_cache_page_write_begin+0xa0/0xa0
[ 103.218118][ T4784] ? file_remove_privs+0x5d0/0x5d0
[ 103.223296][ T4784] ? rwsem_write_trylock+0x135/0x1c0
[ 103.228643][ T4784] ? clear_nonspinnable+0x60/0x60
[ 103.233684][ T4784] __generic_file_write_iter+0x25f/0x4e0
[ 103.239343][ T4784] generic_file_write_iter+0xa6/0x1b0
[ 103.244762][ T4784] vfs_write+0x745/0xd60
[ 103.249033][ T4784] ? file_end_write+0x250/0x250
[ 103.254050][ T4784] ? __fget_files+0x40f/0x480
[ 103.258849][ T4784] ? mutex_lock_nested+0x17/0x20
[ 103.263814][ T4784] ? __fdget_pos+0x2bf/0x370
[ 103.268521][ T4784] ? ksys_write+0x71/0x260
[ 103.272944][ T4784] ksys_write+0x152/0x260
[ 103.277309][ T4784] ? __ia32_sys_read+0x80/0x80
[ 103.282368][ T4784] ? lockdep_hardirqs_on+0x94/0x140
[ 103.287594][ T4784] do_syscall_64+0x4c/0xa0
[ 103.292050][ T4784] ? clear_bhb_loop+0x30/0x80
[ 103.296749][ T4784] ? clear_bhb_loop+0x30/0x80
[ 103.301488][ T4784] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 103.307408][ T4784] RIP: 0033:0x7f6c986d1fb9
[ 103.311866][ T4784] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 103.331485][ T4784] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 103.339913][ T4784] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 103.347930][ T4784] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 103.355936][ T4784] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 103.363914][ T4784] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 103.371890][ T4784] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 103.379891][ T4784]
[ 103.392477][ T4784] hfs: new node 0 already hashed?
[ 103.397938][ T4784] ------------[ cut here ]------------
[ 103.403524][ T4784] WARNING: CPU: 1 PID: 4784 at fs/hfs/bnode.c:530 hfs_bnode_create+0x3d1/0x450
[ 103.412683][ T4784] Modules linked in:
[ 103.416727][ T4784] CPU: 1 PID: 4784 Comm: syz-executor.0 Not tainted syzkaller #0
[ 103.424560][ T4784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 103.434757][ T4784] RIP: 0010:hfs_bnode_create+0x3d1/0x450
[ 103.440571][ T4784] Code: 97 3f 8a 89 ee e8 6f 65 82 07 e9 57 fd ff ff e8 a5 c4 49 ff 4c 89 ef e8 7d 7a 96 07 48 c7 c7 40 98 3f 8a 89 ee e8 4f 65 82 07 <0f> 0b eb b7 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 63 fc ff ff 4c
[ 103.460649][ T4784] RSP: 0018:ffffc90002256fd0 EFLAGS: 00010246
[ 103.467748][ T4784] RAX: 000000000000001f RBX: ffff888079c6a000 RCX: 5327c417839cc000
[ 103.476001][ T4784] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
[ 103.484023][ T4784] RBP: 0000000000000000 R08: ffffc90002256ae7 R09: 1ffff9200044ad5c
[ 103.492134][ T4784] R10: dffffc0000000000 R11: fffff5200044ad5d R12: 0000000000000000
[ 103.500342][ T4784] R13: ffff888079c6a0e0 R14: ffff888026e87900 R15: dffffc0000000000
[ 103.508422][ T4784] FS: 00007f6c97a636c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
[ 103.517437][ T4784] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 103.524058][ T4784] CR2: 00007f6c987133d0 CR3: 000000001f617000 CR4: 00000000003506e0
[ 103.532118][ T4784] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 103.540176][ T4784] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 103.548236][ T4784] Call Trace:
[ 103.551543][ T4784]
[ 103.554507][ T4784] ? do_raw_spin_unlock+0x11d/0x230
[ 103.559895][ T4784] hfs_bmap_alloc+0x5b8/0x670
[ 103.564624][ T4784] ? hfs_bmap_reserve+0x420/0x420
[ 103.569753][ T4784] hfs_btree_inc_height+0xfd/0xac0
[ 103.575006][ T4784] ? hfs_brec_insert+0x6f6/0xbd0
[ 103.580033][ T4784] ? hfs_brec_insert+0xbd0/0xbd0
[ 103.585027][ T4784] ? do_raw_spin_unlock+0x11d/0x230
[ 103.590428][ T4784] hfs_brec_insert+0x744/0xbd0
[ 103.595351][ T4784] ? hfs_brec_keylen+0x350/0x350
[ 103.600328][ T4784] ? mutex_lock_io_nested+0x60/0x60
[ 103.605602][ T4784] __hfs_ext_write_extent+0x2a1/0x470
[ 103.611026][ T4784] __hfs_ext_cache_extent+0x6b/0x9b0
[ 103.616430][ T4784] ? mutex_lock_nested+0x17/0x20
[ 103.621406][ T4784] ? hfs_find_init+0x15b/0x1d0
[ 103.626235][ T4784] hfs_extend_file+0x39c/0x13f0
[ 103.631138][ T4784] ? hfs_get_block+0xc50/0xc50
[ 103.636002][ T4784] ? __might_sleep+0xf0/0xf0
[ 103.640654][ T4784] ? clean_bdev_aliases+0x769/0x8a0
[ 103.645939][ T4784] hfs_get_block+0x40f/0xc50
[ 103.650615][ T4784] ? hfs_free_extents+0x430/0x430
[ 103.655753][ T4784] ? do_raw_spin_unlock+0x11d/0x230
[ 103.661084][ T4784] ? create_page_buffers+0x238/0x320
[ 103.666473][ T4784] __block_write_begin_int+0x565/0x15d0
[ 103.672096][ T4784] ? hfs_free_extents+0x430/0x430
[ 103.677409][ T4784] ? page_zero_new_buffers+0x490/0x490
[ 103.682902][ T4784] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 103.688965][ T4784] ? lock_chain_count+0x20/0x20
[ 103.693848][ T4784] ? do_user_addr_fault+0x694/0xc80
[ 103.699155][ T4784] ? wait_for_stable_page+0xd9/0x110
[ 103.704590][ T4784] cont_write_begin+0x598/0x7b0
[ 103.709552][ T4784] ? lockdep_hardirqs_on+0x94/0x140
[ 103.714794][ T4784] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 103.720789][ T4784] ? __get_user_nocheck_1+0x6/0x10
[ 103.726059][ T4784] hfs_write_begin+0x92/0xe0
[ 103.730704][ T4784] ? hfs_free_extents+0x430/0x430
[ 103.735901][ T4784] generic_perform_write+0x2b6/0x550
[ 103.741241][ T4784] ? grab_cache_page_write_begin+0xa0/0xa0
[ 103.747153][ T4784] ? file_remove_privs+0x5d0/0x5d0
[ 103.752343][ T4784] ? rwsem_write_trylock+0x135/0x1c0
[ 103.757744][ T4784] ? clear_nonspinnable+0x60/0x60
[ 103.762988][ T4784] __generic_file_write_iter+0x25f/0x4e0
[ 103.768727][ T4784] generic_file_write_iter+0xa6/0x1b0
[ 103.774158][ T4784] vfs_write+0x745/0xd60
[ 103.778495][ T4784] ? file_end_write+0x250/0x250
[ 103.783468][ T4784] ? __fget_files+0x40f/0x480
[ 103.788258][ T4784] ? mutex_lock_nested+0x17/0x20
[ 103.793230][ T4784] ? __fdget_pos+0x2bf/0x370
[ 103.798030][ T4784] ? ksys_write+0x71/0x260
[ 103.802489][ T4784] ksys_write+0x152/0x260
[ 103.806911][ T4784] ? __ia32_sys_read+0x80/0x80
[ 103.811771][ T4784] ? lockdep_hardirqs_on+0x94/0x140
[ 103.817110][ T4784] do_syscall_64+0x4c/0xa0
[ 103.821689][ T4784] ? clear_bhb_loop+0x30/0x80
[ 103.826499][ T4784] ? clear_bhb_loop+0x30/0x80
[ 103.831211][ T4784] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 103.837211][ T4784] RIP: 0033:0x7f6c986d1fb9
[ 103.841672][ T4784] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 103.861576][ T4784] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 103.870485][ T4784] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 103.878684][ T4784] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 103.886863][ T4784] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 103.894880][ T4784] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 103.903116][ T4784] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 103.911232][ T4784]
[ 103.914307][ T4784] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 103.921615][ T4784] CPU: 1 PID: 4784 Comm: syz-executor.0 Not tainted syzkaller #0
[ 103.929378][ T4784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 103.939469][ T4784] Call Trace:
[ 103.942767][ T4784]
[ 103.945706][ T4784] dump_stack_lvl+0x188/0x250
[ 103.950531][ T4784] ? show_regs_print_info+0x20/0x20
[ 103.955773][ T4784] ? load_image+0x400/0x400
[ 103.960425][ T4784] panic+0x2e5/0x810
[ 103.964342][ T4784] ? bpf_jit_dump+0xd0/0xd0
[ 103.968879][ T4784] ? hfs_bnode_create+0x3d1/0x450
[ 103.974113][ T4784] __warn+0x248/0x2b0
[ 103.978124][ T4784] ? hfs_bnode_create+0x3d1/0x450
[ 103.983189][ T4784] report_bug+0x1b7/0x2e0
[ 103.987540][ T4784] handle_bug+0x3a/0x70
[ 103.991716][ T4784] exc_invalid_op+0x16/0x40
[ 103.996244][ T4784] asm_exc_invalid_op+0x16/0x20
[ 104.001103][ T4784] RIP: 0010:hfs_bnode_create+0x3d1/0x450
[ 104.006745][ T4784] Code: 97 3f 8a 89 ee e8 6f 65 82 07 e9 57 fd ff ff e8 a5 c4 49 ff 4c 89 ef e8 7d 7a 96 07 48 c7 c7 40 98 3f 8a 89 ee e8 4f 65 82 07 <0f> 0b eb b7 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 63 fc ff ff 4c
[ 104.026371][ T4784] RSP: 0018:ffffc90002256fd0 EFLAGS: 00010246
[ 104.032699][ T4784] RAX: 000000000000001f RBX: ffff888079c6a000 RCX: 5327c417839cc000
[ 104.040690][ T4784] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
[ 104.048977][ T4784] RBP: 0000000000000000 R08: ffffc90002256ae7 R09: 1ffff9200044ad5c
[ 104.057113][ T4784] R10: dffffc0000000000 R11: fffff5200044ad5d R12: 0000000000000000
[ 104.065100][ T4784] R13: ffff888079c6a0e0 R14: ffff888026e87900 R15: dffffc0000000000
[ 104.073095][ T4784] ? do_raw_spin_unlock+0x11d/0x230
[ 104.078440][ T4784] hfs_bmap_alloc+0x5b8/0x670
[ 104.083334][ T4784] ? hfs_bmap_reserve+0x420/0x420
[ 104.088376][ T4784] hfs_btree_inc_height+0xfd/0xac0
[ 104.093507][ T4784] ? hfs_brec_insert+0x6f6/0xbd0
[ 104.098557][ T4784] ? hfs_brec_insert+0xbd0/0xbd0
[ 104.103620][ T4784] ? do_raw_spin_unlock+0x11d/0x230
[ 104.108849][ T4784] hfs_brec_insert+0x744/0xbd0
[ 104.113691][ T4784] ? hfs_brec_keylen+0x350/0x350
[ 104.118766][ T4784] ? mutex_lock_io_nested+0x60/0x60
[ 104.124009][ T4784] __hfs_ext_write_extent+0x2a1/0x470
[ 104.129398][ T4784] __hfs_ext_cache_extent+0x6b/0x9b0
[ 104.134706][ T4784] ? mutex_lock_nested+0x17/0x20
[ 104.139688][ T4784] ? hfs_find_init+0x15b/0x1d0
[ 104.144469][ T4784] hfs_extend_file+0x39c/0x13f0
[ 104.149360][ T4784] ? hfs_get_block+0xc50/0xc50
[ 104.154159][ T4784] ? __might_sleep+0xf0/0xf0
[ 104.158782][ T4784] ? clean_bdev_aliases+0x769/0x8a0
[ 104.163987][ T4784] hfs_get_block+0x40f/0xc50
[ 104.168612][ T4784] ? hfs_free_extents+0x430/0x430
[ 104.173667][ T4784] ? do_raw_spin_unlock+0x11d/0x230
[ 104.178873][ T4784] ? create_page_buffers+0x238/0x320
[ 104.184165][ T4784] __block_write_begin_int+0x565/0x15d0
[ 104.189733][ T4784] ? hfs_free_extents+0x430/0x430
[ 104.194774][ T4784] ? page_zero_new_buffers+0x490/0x490
[ 104.200252][ T4784] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 104.206278][ T4784] ? lock_chain_count+0x20/0x20
[ 104.211162][ T4784] ? do_user_addr_fault+0x694/0xc80
[ 104.216469][ T4784] ? wait_for_stable_page+0xd9/0x110
[ 104.221794][ T4784] cont_write_begin+0x598/0x7b0
[ 104.226682][ T4784] ? lockdep_hardirqs_on+0x94/0x140
[ 104.231908][ T4784] ? generic_cont_expand_simple+0x1a0/0x1a0
[ 104.237818][ T4784] ? __get_user_nocheck_1+0x6/0x10
[ 104.243115][ T4784] hfs_write_begin+0x92/0xe0
[ 104.247721][ T4784] ? hfs_free_extents+0x430/0x430
[ 104.252761][ T4784] generic_perform_write+0x2b6/0x550
[ 104.258072][ T4784] ? grab_cache_page_write_begin+0xa0/0xa0
[ 104.263919][ T4784] ? file_remove_privs+0x5d0/0x5d0
[ 104.269067][ T4784] ? rwsem_write_trylock+0x135/0x1c0
[ 104.274395][ T4784] ? clear_nonspinnable+0x60/0x60
[ 104.279455][ T4784] __generic_file_write_iter+0x25f/0x4e0
[ 104.285331][ T4784] generic_file_write_iter+0xa6/0x1b0
[ 104.290814][ T4784] vfs_write+0x745/0xd60
[ 104.295071][ T4784] ? file_end_write+0x250/0x250
[ 104.299964][ T4784] ? __fget_files+0x40f/0x480
[ 104.304656][ T4784] ? mutex_lock_nested+0x17/0x20
[ 104.309624][ T4784] ? __fdget_pos+0x2bf/0x370
[ 104.314369][ T4784] ? ksys_write+0x71/0x260
[ 104.318802][ T4784] ksys_write+0x152/0x260
[ 104.323161][ T4784] ? __ia32_sys_read+0x80/0x80
[ 104.327935][ T4784] ? lockdep_hardirqs_on+0x94/0x140
[ 104.333227][ T4784] do_syscall_64+0x4c/0xa0
[ 104.337662][ T4784] ? clear_bhb_loop+0x30/0x80
[ 104.342354][ T4784] ? clear_bhb_loop+0x30/0x80
[ 104.347039][ T4784] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 104.352959][ T4784] RIP: 0033:0x7f6c986d1fb9
[ 104.357403][ T4784] Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 104.377027][ T4784] RSP: 002b:00007f6c97a630b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 104.385571][ T4784] RAX: ffffffffffffffda RBX: 00007f6c98810f80 RCX: 00007f6c986d1fb9
[ 104.393556][ T4784] RDX: 00000000000ffe00 RSI: 0000000020004200 RDI: 0000000000000004
[ 104.401537][ T4784] RBP: 00007f6c97a63120 R08: 0000000000000000 R09: 0000000000000000
[ 104.409515][ T4784] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 104.417585][ T4784] R13: 000000000000000b R14: 00007f6c98810f80 R15: 00007ffddee7e9d8
[ 104.425608][ T4784]
[ 104.428948][ T4784] Kernel Offset: disabled
[ 104.433545][ T4784] Rebooting in 86400 seconds..