Warning: Permanently added '10.128.0.237' (ED25519) to the list of known hosts.
2026/08/14 03:10:45 parsed 1 programs
2026/08/14 03:10:45 serving rpc on tcp://42163
Setting up swapspace version 1, size = 127995904 bytes
[ 37.081583][ T30] kauditd_printk_skb: 31 callbacks suppressed
[ 37.081596][ T30] audit: type=1400 audit(1786677046.074:105): avc: denied { unlink } for pid=410 comm="syz-executor" name="swap-file" dev="sda1" ino=2027 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t"
[ 37.142022][ T410] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 37.740284][ T30] audit: type=1401 audit(1786677046.724:106): op=setxattr invalid_context="u:object_r:app_data_file:s0:c512,c768"
[ 37.783450][ T429] bridge0: port 1(bridge_slave_0) entered blocking state
[ 37.794371][ T429] bridge0: port 1(bridge_slave_0) entered disabled state
[ 37.803046][ T429] device bridge_slave_0 entered promiscuous mode
[ 37.809799][ T429] bridge0: port 2(bridge_slave_1) entered blocking state
[ 37.817920][ T429] bridge0: port 2(bridge_slave_1) entered disabled state
[ 37.825861][ T429] device bridge_slave_1 entered promiscuous mode
[ 37.860990][ T429] bridge0: port 2(bridge_slave_1) entered blocking state
[ 37.868561][ T429] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 37.875968][ T429] bridge0: port 1(bridge_slave_0) entered blocking state
[ 37.883322][ T429] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 37.899567][ T353] bridge0: port 1(bridge_slave_0) entered disabled state
[ 37.907057][ T353] bridge0: port 2(bridge_slave_1) entered disabled state
[ 37.915027][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 37.923224][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 37.932868][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 37.941453][ T353] bridge0: port 1(bridge_slave_0) entered blocking state
[ 37.948788][ T353] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 37.957765][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 37.966729][ T353] bridge0: port 2(bridge_slave_1) entered blocking state
[ 37.973928][ T353] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 37.987404][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 37.997044][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 38.009773][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 38.022024][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 38.030312][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 38.038402][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 38.047188][ T429] device veth0_vlan entered promiscuous mode
[ 38.058109][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 38.068422][ T429] device veth1_macvtap entered promiscuous mode
[ 38.077947][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 38.088937][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 38.474732][ T30] audit: type=1400 audit(1786677047.464:107): avc: denied { create } for pid=468 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bluetooth_socket permissive=1
2026/08/14 03:10:47 executed programs: 0
[ 38.643794][ T8] device bridge_slave_1 left promiscuous mode
[ 38.653233][ T8] bridge0: port 2(bridge_slave_1) entered disabled state
[ 38.661437][ T8] device bridge_slave_0 left promiscuous mode
[ 38.667989][ T8] bridge0: port 1(bridge_slave_0) entered disabled state
[ 38.676152][ T8] device veth1_macvtap left promiscuous mode
[ 38.682614][ T8] device veth0_vlan left promiscuous mode
[ 38.790620][ T473] bridge0: port 1(bridge_slave_0) entered blocking state
[ 38.799897][ T473] bridge0: port 1(bridge_slave_0) entered disabled state
[ 38.810270][ T473] device bridge_slave_0 entered promiscuous mode
[ 38.817905][ T473] bridge0: port 2(bridge_slave_1) entered blocking state
[ 38.826442][ T473] bridge0: port 2(bridge_slave_1) entered disabled state
[ 38.836397][ T473] device bridge_slave_1 entered promiscuous mode
[ 38.889823][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 38.897985][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 38.906769][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[ 38.915388][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 38.924284][ T10] bridge0: port 1(bridge_slave_0) entered blocking state
[ 38.931478][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 38.939584][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
[ 38.948004][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[ 38.956509][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 38.965004][ T10] bridge0: port 2(bridge_slave_1) entered blocking state
[ 38.972415][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 38.987382][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 38.996001][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 39.014296][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 39.024856][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 39.033729][ T473] device veth0_vlan entered promiscuous mode
[ 39.045013][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 39.054022][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 39.064521][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 39.075369][ T473] device veth1_macvtap entered promiscuous mode
[ 39.084155][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 39.094654][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 39.117528][ T416] FAULT_INJECTION: forcing a failure.
[ 39.117528][ T416] name failslab, interval 1, probability 10, space 0, times 1
[ 39.119152][ T473] FAULT_INJECTION: forcing a failure.
[ 39.119152][ T473] name failslab, interval 1, probability 10, space 0, times 100
[ 39.131069][ T30] audit: type=1400 audit(1786677048.104:108): avc: denied { mount } for pid=478 comm="syz.2.17" name="/" dev="debugfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:debugfs_t tclass=filesystem permissive=1
[ 39.144530][ T39] FAULT_INJECTION: forcing a failure.
[ 39.144530][ T39] name failslab, interval 1, probability 10, space 0, times 100
[ 39.167444][ T60] FAULT_INJECTION: forcing a failure.
[ 39.167444][ T60] name failslab, interval 1, probability 10, space 0, times 100
[ 39.181803][ T473] CPU: 1 PID: 473 Comm: syz-executor Not tainted syzkaller #0
[ 39.201623][ T473] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 39.211773][ T473] Call Trace:
[ 39.215045][ T473]
[ 39.218130][ T473] __dump_stack+0x21/0x30
[ 39.223325][ T473] dump_stack_lvl+0x110/0x170
[ 39.228239][ T473] ? show_regs_print_info+0x20/0x20
[ 39.233538][ T473] ? prandom_u32+0x24d/0x290
[ 39.238221][ T473] dump_stack+0x15/0x20
[ 39.242673][ T473] should_fail+0x3ab/0x500
[ 39.247537][ T473] __should_failslab+0xa4/0xe0
[ 39.252563][ T473] should_failslab+0x9/0x20
[ 39.258592][ T473] slab_pre_alloc_hook+0x39/0xd0
[ 39.264494][ T473] ? security_file_alloc+0x33/0x120
[ 39.270764][ T473] kmem_cache_alloc+0x44/0x260
[ 39.277581][ T473] security_file_alloc+0x33/0x120
[ 39.283059][ T473] __alloc_file+0xb5/0x2a0
[ 39.288308][ T473] alloc_empty_file+0x97/0x180
[ 39.293263][ T473] path_openat+0xf4/0x2f80
[ 39.297692][ T473] ? __stack_depot_save+0x34/0x480
[ 39.303182][ T473] ? __kasan_slab_alloc+0xc9/0xe0
[ 39.308334][ T473] ? __kasan_slab_alloc+0xb7/0xe0
[ 39.313342][ T473] ? slab_post_alloc_hook+0x4f/0x2b0
[ 39.318887][ T473] ? kmem_cache_alloc+0xf7/0x260
[ 39.323984][ T473] ? getname_flags+0xba/0x510
[ 39.328815][ T473] ? getname+0x19/0x20
[ 39.332992][ T473] ? do_sys_openat2+0xeb/0x7f0
[ 39.338014][ T473] ? __x64_sys_openat+0x136/0x160
[ 39.343203][ T473] ? x64_sys_call+0x219/0x9a0
[ 39.347875][ T473] ? do_syscall_64+0x4c/0xa0
[ 39.352785][ T473] ? entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 39.359386][ T473] ? do_filp_open+0x400/0x400
[ 39.364072][ T473] do_filp_open+0x1df/0x400
[ 39.368707][ T473] ? vfs_tmpfile+0x2d0/0x2d0
[ 39.373490][ T473] do_sys_openat2+0x15e/0x7f0
[ 39.378260][ T473] ? user_path_at_empty+0x162/0x1c0
[ 39.383762][ T473] ? kmem_cache_free+0x100/0x320
[ 39.389298][ T473] ? namespace_unlock+0x440/0x440
[ 39.394509][ T473] ? do_sys_open+0xe0/0xe0
[ 39.399238][ T473] ? __x64_sys_umount+0x12d/0x170
[ 39.404621][ T473] __x64_sys_openat+0x136/0x160
[ 39.409564][ T473] x64_sys_call+0x219/0x9a0
[ 39.414332][ T473] do_syscall_64+0x4c/0xa0
[ 39.419259][ T473] ? clear_bhb_loop+0x50/0xa0
[ 39.423919][ T473] ? clear_bhb_loop+0x50/0xa0
[ 39.429013][ T473] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 39.435737][ T473] RIP: 0033:0x7f51ec7b91bc
[ 39.440242][ T473] Code: 4c 89 54 24 18 41 89 f2 41 83 e2 40 75 40 89 f0 f7 d0 a9 00 00 41 00 74 35 89 f2 b8 01 01 00 00 48 89 fe bf 9c ff ff ff 0f 05 <48> 3d 00 f0 ff ff 77 44 48 8b 54 24 18 64 48 2b 14 25 28 00 00 00
[ 39.462818][ T473] RSP: 002b:00007ffdc30eed20 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
[ 39.472147][ T473] RAX: ffffffffffffffda RBX: 00007f51ec84f30a RCX: 00007f51ec7b91bc
[ 39.483851][ T473] RDX: 0000000000090800 RSI: 00007ffdc30efed0 RDI: 00000000ffffff9c
[ 39.494174][ T473] RBP: 00007ffdc30efebc R08: 0000000000000000 R09: 0000000000000000
[ 39.505163][ T473] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdc30efed0
[ 39.516630][ T473] R13: 00007f51ec84f30a R14: 0000000000009898 R15: 00007ffdc30eff10
[ 39.525252][ T473]
[ 39.529180][ T416] CPU: 0 PID: 416 Comm: udevd Not tainted syzkaller #0
[ 39.529265][ C1] FAULT_INJECTION: forcing a failure.
[ 39.529265][ C1] name failslab, interval 1, probability 10, space 0, times 100
[ 39.536876][ T416] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 39.536892][ T416] Call Trace:
[ 39.536898][ T416]
[ 39.536904][ T416] __dump_stack+0x21/0x30
[ 39.536926][ T416] dump_stack_lvl+0x110/0x170
[ 39.582409][ T416] ? show_regs_print_info+0x20/0x20
[ 39.587799][ T416] dump_stack+0x15/0x20
[ 39.591977][ T416] should_fail+0x3ab/0x500
[ 39.596387][ T416] __should_failslab+0xa4/0xe0
[ 39.601359][ T416] should_failslab+0x9/0x20
[ 39.606392][ T416] slab_pre_alloc_hook+0x39/0xd0
[ 39.611509][ T416] ? getname_flags+0xba/0x510
[ 39.616477][ T416] kmem_cache_alloc+0x44/0x260
[ 39.621417][ T416] getname_flags+0xba/0x510
[ 39.626083][ T416] __x64_sys_rename+0x6e/0x90
[ 39.630763][ T416] x64_sys_call+0x680/0x9a0
[ 39.635440][ T416] do_syscall_64+0x4c/0xa0
[ 39.639853][ T416] ? clear_bhb_loop+0x50/0xa0
[ 39.644538][ T416] ? clear_bhb_loop+0x50/0xa0
[ 39.649651][ T416] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 39.655862][ T416] RIP: 0033:0x7f6df50ddcc7
[ 39.660264][ T416] Code: e8 5e a7 09 00 f7 d8 19 c0 5b c3 0f 1f 84 00 00 00 00 00 b8 ff ff ff ff 5b c3 66 0f 1f 84 00 00 00 00 00 b8 52 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 01 61 17 00 f7 d8 64 89 02 b8
[ 39.680646][ T416] RSP: 002b:00007ffe96fe0428 EFLAGS: 00000206 ORIG_RAX: 0000000000000052
[ 39.689418][ T416] RAX: ffffffffffffffda RBX: 0000557051aa39f0 RCX: 00007f6df50ddcc7
[ 39.698111][ T416] RDX: 000055705184d010 RSI: 00007ffe96fe0440 RDI: 00007ffe96fe0840
[ 39.706404][ T416] RBP: 0000557051a84f80 R08: 00000000000001e0 R09: 0000000000000000
[ 39.714935][ T416] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe96fe0440
[ 39.723018][ T416] R13: 00007ffe96fe0840 R14: 0000000000000000 R15: 000055701ccab9dd
[ 39.731173][ T416]
[ 39.734277][ C1] CPU: 1 PID: 473 Comm: syz-executor Not tainted syzkaller #0
[ 39.734503][ T90] FAULT_INJECTION: forcing a failure.
[ 39.734503][ T90] name failslab, interval 1, probability 10, space 0, times 100
[ 39.742452][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 39.742465][ C1] Call Trace:
[ 39.742469][ C1]
[ 39.742475][ C1] __dump_stack+0x21/0x30
[ 39.755918][ T1] FAULT_INJECTION: forcing a failure.
[ 39.755918][ T1] name failslab, interval 1, probability 10, space 0, times 100
[ 39.766834][ C1] dump_stack_lvl+0x110/0x170
[ 39.766865][ C1] ? show_regs_print_info+0x20/0x20
[ 39.801146][ C1] dump_stack+0x15/0x20
[ 39.805394][ C1] should_fail+0x3ab/0x500
[ 39.809985][ C1] __should_failslab+0xa4/0xe0
[ 39.814785][ C1] should_failslab+0x9/0x20
[ 39.819396][ C1] slab_pre_alloc_hook+0x39/0xd0
[ 39.824352][ C1] ? __alloc_skb+0xe4/0x730
[ 39.829083][ C1] kmem_cache_alloc+0x44/0x260
[ 39.833874][ C1] __alloc_skb+0xe4/0x730
[ 39.838283][ C1] __tcp_send_ack+0x9b/0x6c0
[ 39.843052][ C1] tcp_send_ack+0x3b/0x60
[ 39.847509][ C1] tcp_delack_timer_handler+0x339/0x740
[ 39.853146][ C1] tcp_delack_timer+0x104/0x230
[ 39.858007][ C1] ? tcp_write_timer+0x1d0/0x1d0
[ 39.862960][ C1] call_timer_fn+0x38/0x290
[ 39.867459][ C1] ? tcp_write_timer+0x1d0/0x1d0
[ 39.872919][ C1] __run_timers+0x637/0x9a0
[ 39.877592][ C1] ? calc_index+0x200/0x200
[ 39.882358][ C1] ? sched_clock_cpu+0x18/0x3d0
[ 39.887393][ C1] run_timer_softirq+0x6a/0xf0
[ 39.892154][ C1] handle_softirqs+0x250/0x560
[ 39.896915][ C1] __irq_exit_rcu+0x52/0xf0
[ 39.901509][ C1] irq_exit_rcu+0x9/0x10
[ 39.905827][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 39.911449][ C1]
[ 39.914365][ C1]
[ 39.917320][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 39.924346][ C1] RIP: 0010:dump_stack_lvl+0x144/0x170
[ 39.930339][ C1] Code: e6 00 02 00 00 31 ff e8 3a 77 be fc 49 81 e5 00 02 00 00 75 07 e8 ec 72 be fc eb 06 e8 e5 72 be fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40
[ 39.950584][ C1] RSP: 0018:ffffc90001f57720 EFLAGS: 00000293
[ 39.956687][ C1] RAX: ffffffff84ab43fb RBX: ffffffff8564c0a0 RCX: ffff8881182c8000
[ 39.965005][ C1] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
[ 39.974240][ C1] RBP: ffffc90001f577b0 R08: 0000000000000003 R09: 0000000000000004
[ 39.982527][ C1] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000
[ 39.990691][ C1] R13: 0000000000000200 R14: 0000000000000001 R15: 1ffff920003eaee4
[ 39.998753][ C1] ? dump_stack_lvl+0x13b/0x170
[ 40.003685][ C1] ? show_regs_print_info+0x20/0x20
[ 40.008882][ C1] ? prandom_u32+0x24d/0x290
[ 40.013464][ C1] dump_stack+0x15/0x20
[ 40.017619][ C1] should_fail+0x3ab/0x500
[ 40.022123][ C1] __should_failslab+0xa4/0xe0
[ 40.027073][ C1] should_failslab+0x9/0x20
[ 40.031739][ C1] slab_pre_alloc_hook+0x39/0xd0
[ 40.036706][ C1] ? security_file_alloc+0x33/0x120
[ 40.042247][ C1] kmem_cache_alloc+0x44/0x260
[ 40.047119][ C1] security_file_alloc+0x33/0x120
[ 40.052517][ C1] __alloc_file+0xb5/0x2a0
[ 40.056929][ C1] alloc_empty_file+0x97/0x180
[ 40.062308][ C1] path_openat+0xf4/0x2f80
[ 40.066800][ C1] ? __stack_depot_save+0x34/0x480
[ 40.072076][ C1] ? __kasan_slab_alloc+0xc9/0xe0
[ 40.077176][ C1] ? __kasan_slab_alloc+0xb7/0xe0
[ 40.082189][ C1] ? slab_post_alloc_hook+0x4f/0x2b0
[ 40.087468][ C1] ? kmem_cache_alloc+0xf7/0x260
[ 40.092409][ C1] ? getname_flags+0xba/0x510
[ 40.097446][ C1] ? getname+0x19/0x20
[ 40.101646][ C1] ? do_sys_openat2+0xeb/0x7f0
[ 40.106578][ C1] ? __x64_sys_openat+0x136/0x160
[ 40.111673][ C1] ? x64_sys_call+0x219/0x9a0
[ 40.116512][ C1] ? do_syscall_64+0x4c/0xa0
[ 40.121089][ C1] ? entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 40.127419][ C1] ? do_filp_open+0x400/0x400
[ 40.130772][ C0] FAULT_INJECTION: forcing a failure.
[ 40.130772][ C0] name failslab, interval 1, probability 10, space 0, times 100
[ 40.132180][ C1] do_filp_open+0x1df/0x400
[ 40.149776][ C1] ? vfs_tmpfile+0x2d0/0x2d0
[ 40.154469][ C1] do_sys_openat2+0x15e/0x7f0
[ 40.159232][ C1] ? user_path_at_empty+0x162/0x1c0
[ 40.164516][ C1] ? kmem_cache_free+0x100/0x320
[ 40.169469][ C1] ? namespace_unlock+0x440/0x440
[ 40.174485][ C1] ? do_sys_open+0xe0/0xe0
[ 40.179004][ C1] ? __x64_sys_umount+0x12d/0x170
[ 40.184152][ C1] __x64_sys_openat+0x136/0x160
[ 40.189130][ C1] x64_sys_call+0x219/0x9a0
[ 40.193737][ C1] do_syscall_64+0x4c/0xa0
[ 40.198162][ C1] ? clear_bhb_loop+0x50/0xa0
[ 40.202942][ C1] ? clear_bhb_loop+0x50/0xa0
[ 40.207630][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 40.213625][ C1] RIP: 0033:0x7f51ec7b91bc
[ 40.218053][ C1] Code: 4c 89 54 24 18 41 89 f2 41 83 e2 40 75 40 89 f0 f7 d0 a9 00 00 41 00 74 35 89 f2 b8 01 01 00 00 48 89 fe bf 9c ff ff ff 0f 05 <48> 3d 00 f0 ff ff 77 44 48 8b 54 24 18 64 48 2b 14 25 28 00 00 00
[ 40.238103][ C1] RSP: 002b:00007ffdc30eed20 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
[ 40.248334][ C1] RAX: ffffffffffffffda RBX: 00007f51ec84f30a RCX: 00007f51ec7b91bc
[ 40.256936][ C1] RDX: 0000000000090800 RSI: 00007ffdc30efed0 RDI: 00000000ffffff9c
[ 40.266017][ C1] RBP: 00007ffdc30efebc R08: 0000000000000000 R09: 0000000000000000
[ 40.274456][ C1] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdc30efed0
[ 40.282534][ C1] R13: 00007f51ec84f30a R14: 0000000000009898 R15: 00007ffdc30eff10
[ 40.290529][ C1]
[ 40.293569][ C0] CPU: 0 PID: 90 Comm: klogd Not tainted syzkaller #0
[ 40.300530][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 40.310862][ C0] Call Trace:
[ 40.314153][ C0]
[ 40.317033][ C0] __dump_stack+0x21/0x30
[ 40.321384][ C0] dump_stack_lvl+0x110/0x170
[ 40.326137][ C0] ? show_regs_print_info+0x20/0x20
[ 40.331805][ C0] ? prandom_u32+0x24d/0x290
[ 40.336600][ C0] dump_stack+0x15/0x20
[ 40.340760][ C0] should_fail+0x3ab/0x500
[ 40.345171][ C0] __should_failslab+0xa4/0xe0
[ 40.349924][ C0] should_failslab+0x9/0x20
[ 40.354419][ C0] slab_pre_alloc_hook+0x39/0xd0
[ 40.359446][ C0] ? __alloc_skb+0xe4/0x730
[ 40.363938][ C0] kmem_cache_alloc+0x44/0x260
[ 40.368694][ C0] __alloc_skb+0xe4/0x730
[ 40.373003][ C0] wg_packet_send_keepalive+0x62/0x1c0
[ 40.378447][ C0] ? wg_expired_send_persistent_keepalive+0x44/0x80
[ 40.385199][ C0] wg_expired_send_persistent_keepalive+0x53/0x80
[ 40.391639][ C0] ? wg_expired_zero_key_material+0x170/0x170
[ 40.398172][ C0] call_timer_fn+0x38/0x290
[ 40.402684][ C0] ? wg_expired_zero_key_material+0x170/0x170
[ 40.408880][ C0] __run_timers+0x637/0x9a0
[ 40.413512][ C0] ? calc_index+0x200/0x200
[ 40.418552][ C0] ? sched_clock_cpu+0x18/0x3d0
[ 40.423927][ C0] run_timer_softirq+0x6a/0xf0
[ 40.429078][ C0] handle_softirqs+0x250/0x560
[ 40.434872][ C0] __irq_exit_rcu+0x52/0xf0
[ 40.439932][ C0] irq_exit_rcu+0x9/0x10
[ 40.444569][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 40.450808][ C0]
[ 40.453849][ C0]
[ 40.456873][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 40.463381][ C0] RIP: 0010:__printk_wait_on_cpu_lock+0xb/0x40
[ 40.469941][ C0] Code: 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 fc e4 56 00 4c 89 33 5b 41 5c 41 5e 41 5f 5d c3 55 48 89 e5 e8 d7 74 17 00 f3 90 <48> c7 c7 80 1f 71 86 be 04 00 00 00 e8 14 e6 56 00 8b 05 5e dd 1e
[ 40.490542][ C0] RSP: 0018:ffffc900009f76b0 EFLAGS: 00000293
[ 40.496798][ C0] RAX: ffffffff8152422c RBX: ffffffff8564c0a0 RCX: ffff88810d74bb40
[ 40.505052][ C0] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff86711f80
[ 40.513260][ C0] RBP: ffffc900009f76b0 R08: 0000000000000003 R09: 0000000000000004
[ 40.522687][ C0] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000
[ 40.531282][ C0] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff9200013eed8
[ 40.541154][ C0] ? __printk_wait_on_cpu_lock+0x2c/0x40
[ 40.549002][ C0] dump_stack_lvl+0xce/0x170
[ 40.554877][ C0] ? show_regs_print_info+0x20/0x20
[ 40.560467][ C0] ? prandom_u32+0x24d/0x290
[ 40.565133][ C0] dump_stack+0x15/0x20
[ 40.570149][ C0] should_fail+0x3ab/0x500
[ 40.575584][ C0] ? alloc_skb_with_frags+0xa8/0x620
[ 40.581536][ C0] __should_failslab+0xa4/0xe0
[ 40.589184][ C0] should_failslab+0x9/0x20
[ 40.594086][ C0] slab_pre_alloc_hook+0x39/0xd0
[ 40.599245][ C0] ? alloc_skb_with_frags+0xa8/0x620
[ 40.604975][ C0] ? alloc_skb_with_frags+0xa8/0x620
[ 40.610777][ C0] __kmalloc_track_caller+0x6c/0x2c0
[ 40.616967][ C0] ? alloc_skb_with_frags+0xa8/0x620
[ 40.622540][ C0] ? alloc_skb_with_frags+0xa8/0x620
[ 40.629161][ C0] __alloc_skb+0x210/0x730
[ 40.633758][ C0] alloc_skb_with_frags+0xa8/0x620
[ 40.639064][ C0] ? memcpy+0x56/0x70
[ 40.643045][ C0] sock_alloc_send_pskb+0x87f/0x9a0
[ 40.648674][ C0] ? sock_kzfree_s+0x60/0x60
[ 40.653253][ C0] ? __kasan_check_write+0x14/0x20
[ 40.658704][ C0] ? _raw_spin_lock+0x94/0xf0
[ 40.663751][ C0] ? _raw_spin_trylock_bh+0x150/0x150
[ 40.669452][ C0] unix_dgram_sendmsg+0x6f3/0x19b0
[ 40.674556][ C0] ? unix_dgram_poll+0x6c0/0x6c0
[ 40.680361][ C0] ? security_socket_sendmsg+0x82/0xa0
[ 40.689474][ C0] __sys_sendto+0x46d/0x620
[ 40.694174][ C0] ? __ia32_sys_getpeername+0x90/0x90
[ 40.699864][ C0] ? kvm_sched_clock_read+0x18/0x40
[ 40.707341][ C0] ? __kasan_check_write+0x14/0x20
[ 40.713566][ C0] __x64_sys_sendto+0xe5/0x100
[ 40.718844][ C0] x64_sys_call+0x178/0x9a0
[ 40.723620][ C0] do_syscall_64+0x4c/0xa0
[ 40.728300][ C0] ? clear_bhb_loop+0x50/0xa0
[ 40.733074][ C0] ? clear_bhb_loop+0x50/0xa0
[ 40.737868][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 40.743866][ C0] RIP: 0033:0x7fe49a601407
[ 40.748371][ C0] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
[ 40.769736][ C0] RSP: 002b:00007ffcdc441560 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 40.778810][ C0] RAX: ffffffffffffffda RBX: 00007fe49a4b1c80 RCX: 00007fe49a601407
[ 40.786927][ C0] RDX: 0000000000000055 RSI: 00007ffcdc4416a0 RDI: 0000000000000003
[ 40.795399][ C0] RBP: 00007ffcdc441ad0 R08: 0000000000000000 R09: 0000000000000000
[ 40.803803][ C0] R10: 0000000000004000 R11: 0000000000000202 R12: 00007ffcdc441ae8
[ 40.812105][ C0] R13: 00007ffcdc4416a0 R14: 000000000000003a R15: 00007ffcdc4416a0
[ 40.820683][ C0]
[ 40.823881][ T39] CPU: 1 PID: 39 Comm: kworker/1:1 Not tainted syzkaller #0
[ 40.831826][ T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 40.841883][ T39] Workqueue: mld mld_ifc_work
[ 40.846814][ T39] Call Trace:
[ 40.851716][ T39]
[ 40.854894][ T39] __dump_stack+0x21/0x30
[ 40.859316][ T39] dump_stack_lvl+0x110/0x170
[ 40.864336][ T39] ? show_regs_print_info+0x20/0x20
[ 40.869996][ T39] ? prandom_u32+0x24d/0x290
[ 40.874958][ T39] dump_stack+0x15/0x20
[ 40.879120][ T39] should_fail+0x3ab/0x500
[ 40.884194][ T39] __should_failslab+0xa4/0xe0
[ 40.889048][ T39] should_failslab+0x9/0x20
[ 40.893842][ T39] slab_pre_alloc_hook+0x39/0xd0
[ 40.899405][ T39] kmem_cache_alloc_trace+0x48/0x270
[ 40.905065][ T39] ? dst_cow_metrics_generic+0x55/0x1c0
[ 40.910634][ T39] dst_cow_metrics_generic+0x55/0x1c0
[ 40.916118][ T39] icmp6_dst_alloc+0x35f/0x520
[ 40.921256][ T39] mld_sendpack+0x4d9/0xba0
[ 40.925862][ T39] ? add_grec+0x1340/0x1340
[ 40.930768][ T39] ? add_grec+0xf70/0x1340
[ 40.935689][ T39] ? memcpy+0x56/0x70
[ 40.940047][ T39] ? wait_for_completion_killable_timeout+0x10/0x10
[ 40.947094][ T39] ? _raw_spin_unlock+0x4d/0x70
[ 40.952385][ T39] mld_ifc_work+0x7d7/0xc40
[ 40.957081][ T39] ? __schedule+0xbd7/0x14a0
[ 40.962620][ T39] process_one_work+0x6c8/0xbb0
[ 40.969112][ T39] worker_thread+0xaa0/0x1250
[ 40.975671][ T39] ? __kasan_check_read+0x11/0x20
[ 40.981758][ T39] kthread+0x3f5/0x4f0
[ 40.986186][ T39] ? worker_clr_flags+0x190/0x190
[ 40.991821][ T39] ? kthread_blkcg+0xd0/0xd0
[ 40.996550][ T39] ret_from_fork+0x1f/0x30
[ 41.001084][ T39]
[ 41.004464][ T90] CPU: 0 PID: 90 Comm: klogd Not tainted syzkaller #0
[ 41.007271][ T33] FAULT_INJECTION: forcing a failure.
[ 41.007271][ T33] name failslab, interval 1, probability 10, space 0, times 97
[ 41.011634][ T90] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 41.011649][ T90] Call Trace:
[ 41.011654][ T90]
[ 41.011661][ T90] __dump_stack+0x21/0x30
[ 41.011682][ T90] dump_stack_lvl+0x110/0x170
[ 41.055273][ T90] ? show_regs_print_info+0x20/0x20
[ 41.061275][ T90] ? prandom_u32+0x24d/0x290
[ 41.066769][ T90] dump_stack+0x15/0x20
[ 41.072487][ T90] should_fail+0x3ab/0x500
[ 41.079309][ T90] ? alloc_skb_with_frags+0xa8/0x620
[ 41.086706][ T90] __should_failslab+0xa4/0xe0
[ 41.094873][ T90] should_failslab+0x9/0x20
[ 41.100260][ T90] slab_pre_alloc_hook+0x39/0xd0
[ 41.108760][ T90] ? alloc_skb_with_frags+0xa8/0x620
[ 41.117299][ T90] ? alloc_skb_with_frags+0xa8/0x620
[ 41.123623][ T90] __kmalloc_track_caller+0x6c/0x2c0
[ 41.130566][ T90] ? alloc_skb_with_frags+0xa8/0x620
[ 41.137497][ T90] ? alloc_skb_with_frags+0xa8/0x620
[ 41.144102][ T90] __alloc_skb+0x210/0x730
[ 41.149740][ T90] alloc_skb_with_frags+0xa8/0x620
[ 41.155868][ T90] ? memcpy+0x56/0x70
[ 41.160032][ T90] sock_alloc_send_pskb+0x87f/0x9a0
[ 41.166033][ T90] ? sock_kzfree_s+0x60/0x60
[ 41.171766][ T90] ? __kasan_check_write+0x14/0x20
[ 41.177169][ T90] ? _raw_spin_lock+0x94/0xf0
[ 41.183489][ T90] ? _raw_spin_trylock_bh+0x150/0x150
[ 41.189278][ T90] unix_dgram_sendmsg+0x6f3/0x19b0
[ 41.195397][ T90] ? unix_dgram_poll+0x6c0/0x6c0
[ 41.200783][ T90] ? security_socket_sendmsg+0x82/0xa0
[ 41.206248][ T90] __sys_sendto+0x46d/0x620
[ 41.210830][ T90] ? __ia32_sys_getpeername+0x90/0x90
[ 41.216466][ T90] ? kvm_sched_clock_read+0x18/0x40
[ 41.222270][ T90] ? __kasan_check_write+0x14/0x20
[ 41.227585][ T90] __x64_sys_sendto+0xe5/0x100
[ 41.236803][ T90] x64_sys_call+0x178/0x9a0
[ 41.241393][ T90] do_syscall_64+0x4c/0xa0
[ 41.246252][ T90] ? clear_bhb_loop+0x50/0xa0
[ 41.251321][ T90] ? clear_bhb_loop+0x50/0xa0
[ 41.256914][ T90] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 41.262992][ T90] RIP: 0033:0x7fe49a601407
[ 41.267583][ T90] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
[ 41.291963][ T90] RSP: 002b:00007ffcdc441560 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 41.302667][ T90] RAX: ffffffffffffffda RBX: 00007fe49a4b1c80 RCX: 00007fe49a601407
[ 41.318204][ T90] RDX: 0000000000000055 RSI: 00007ffcdc4416a0 RDI: 0000000000000003
[ 41.331552][ T90] RBP: 00007ffcdc441ad0 R08: 0000000000000000 R09: 0000000000000000
[ 41.342838][ T90] R10: 0000000000004000 R11: 0000000000000202 R12: 00007ffcdc441ae8
[ 41.354435][ T90] R13: 00007ffcdc4416a0 R14: 000000000000003a R15: 00007ffcdc4416a0
[ 41.365203][ T90]
[ 41.368414][ T33] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 41.376529][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 41.387566][ T33] Workqueue: writeback wb_workfn (flush-8:0)
[ 41.393948][ T33] Call Trace:
[ 41.397653][ T33]
[ 41.400842][ T33] __dump_stack+0x21/0x30
[ 41.406527][ T33] dump_stack_lvl+0x110/0x170
[ 41.411058][ T416] FAULT_INJECTION: forcing a failure.
[ 41.411058][ T416] name failslab, interval 1, probability 10, space 0, times 95
[ 41.411624][ T33] ? show_regs_print_info+0x20/0x20
[ 41.411646][ T33] ? prandom_u32+0x24d/0x290
[ 41.435772][ T33] dump_stack+0x15/0x20
[ 41.440569][ T33] should_fail+0x3ab/0x500
[ 41.447524][ T33] __should_failslab+0xa4/0xe0
[ 41.452597][ T33] should_failslab+0x9/0x20
[ 41.458062][ T33] slab_pre_alloc_hook+0x39/0xd0
[ 41.463540][ T33] ? __es_insert_extent+0x70e/0x1790
[ 41.469471][ T33] kmem_cache_alloc+0x44/0x260
[ 41.474573][ T33] __es_insert_extent+0x70e/0x1790
[ 41.480656][ T33] ? _raw_write_lock+0x94/0xf0
[ 41.486569][ T33] ext4_es_insert_extent+0x53c/0x2d10
[ 41.492587][ T33] ? ext4_es_scan_clu+0x240/0x240
[ 41.498562][ T33] ? _raw_read_unlock+0x25/0x40
[ 41.504070][ T33] ? ext4_es_lookup_extent+0x563/0x900
[ 41.511382][ T33] ext4_map_blocks+0xcad/0x1a50
[ 41.516514][ T33] ? ext4_issue_zeroout+0x250/0x250
[ 41.521898][ T33] ? ext4_inode_journal_mode+0x38e/0x470
[ 41.527639][ T33] ext4_writepages+0x1260/0x30a0
[ 41.532668][ T33] ? ext4_readpage+0x220/0x220
[ 41.537512][ T33] ? __kasan_check_write+0x14/0x20
[ 41.542808][ T33] ? ext4_readpage+0x220/0x220
[ 41.548035][ T33] do_writepages+0x476/0x6d0
[ 41.553052][ T33] ? __writepage+0x130/0x130
[ 41.557940][ T33] ? __kasan_check_write+0x14/0x20
[ 41.563326][ T33] ? _raw_spin_lock+0x94/0xf0
[ 41.568110][ T33] __writeback_single_inode+0xd9/0x9e0
[ 41.574308][ T33] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 41.580496][ T33] writeback_sb_inodes+0x9f3/0x1610
[ 41.585815][ T33] ? queue_io+0x4b0/0x4b0
[ 41.590334][ T33] ? down_read_trylock+0x317/0x630
[ 41.595542][ T33] __writeback_inodes_wb+0x127/0x400
[ 41.601794][ T33] writeback_inodes_wb+0x19d/0x240
[ 41.607256][ T33] ? trace_writeback_pages_written+0xf0/0xf0
[ 41.613524][ T33] ? kvm_sched_clock_read+0x18/0x40
[ 41.618972][ T33] ? kthread_data+0x50/0xc0
[ 41.623758][ T33] wb_workfn+0xea3/0xf30
[ 41.628056][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 41.635402][ T33] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 41.642593][ T33] ? inode_wait_for_writeback+0x220/0x220
[ 41.648906][ T33] ? __kasan_check_write+0x14/0x20
[ 41.654124][ T33] ? _raw_spin_lock+0x94/0xf0
[ 41.658902][ T33] ? _raw_spin_trylock_bh+0x150/0x150
[ 41.665093][ T33] ? _raw_spin_unlock+0x4d/0x70
[ 41.670060][ T33] process_one_work+0x6c8/0xbb0
[ 41.675199][ T33] rescuer_thread+0x73d/0xf80
[ 41.680068][ T33] ? rcu_free_pwq+0x30/0x30
[ 41.684914][ T33] ? __kasan_check_read+0x11/0x20
[ 41.690861][ T33] ? __kthread_parkme+0xab/0x1f0
[ 41.696211][ T33] kthread+0x3f5/0x4f0
[ 41.701368][ T33] ? rcu_free_pwq+0x30/0x30
[ 41.706038][ T33] ? kthread_blkcg+0xd0/0xd0
[ 41.710760][ T33] ret_from_fork+0x1f/0x30
[ 41.715862][ T33]
[ 41.719160][ T60] CPU: 0 PID: 60 Comm: kworker/0:2 Not tainted syzkaller #0
[ 41.719556][ T39] FAULT_INJECTION: forcing a failure.
[ 41.719556][ T39] name failslab, interval 1, probability 10, space 0, times 94
[ 41.726658][ T60] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 41.726676][ T60] Workqueue: mld mld_ifc_work
[ 41.726697][ T60] Call Trace:
[ 41.726702][ T60]
[ 41.726708][ T60] __dump_stack+0x21/0x30
[ 41.726725][ T60] dump_stack_lvl+0x110/0x170
[ 41.726738][ T60] ? show_regs_print_info+0x20/0x20
[ 41.743998][ T33] FAULT_INJECTION: forcing a failure.
[ 41.743998][ T33] name failslab, interval 1, probability 10, space 0, times 94
[ 41.751376][ T60] ? prandom_u32+0x24d/0x290
[ 41.751399][ T60] dump_stack+0x15/0x20
[ 41.751413][ T60] should_fail+0x3ab/0x500
[ 41.808296][ T60] ? mld_newpack+0x143/0x9e0
[ 41.813151][ T60] __should_failslab+0xa4/0xe0
[ 41.818314][ T60] should_failslab+0x9/0x20
[ 41.824755][ T60] slab_pre_alloc_hook+0x39/0xd0
[ 41.829830][ T60] ? mld_newpack+0x143/0x9e0
[ 41.834692][ T60] ? mld_newpack+0x143/0x9e0
[ 41.839364][ T60] __kmalloc_track_caller+0x6c/0x2c0
[ 41.845020][ T60] ? mld_newpack+0x143/0x9e0
[ 41.849871][ T60] ? mld_newpack+0x143/0x9e0
[ 41.854564][ T60] __alloc_skb+0x210/0x730
[ 41.859004][ T60] mld_newpack+0x143/0x9e0
[ 41.863413][ T60] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 41.869222][ T60] ? mld_sendpack+0xba0/0xba0
[ 41.874076][ T60] ? enqueue_timer+0x1b6/0x480
[ 41.879054][ T60] add_grec+0xee8/0x1340
[ 41.883501][ T60] ? wait_for_completion_killable_timeout+0x10/0x10
[ 41.890715][ T60] mld_ifc_work+0x728/0xc40
[ 41.895467][ T60] ? _raw_spin_lock_irqsave+0x130/0x130
[ 41.901230][ T60] process_one_work+0x6c8/0xbb0
[ 41.906193][ T60] worker_thread+0xaa0/0x1250
[ 41.911127][ T60] ? __kasan_check_read+0x11/0x20
[ 41.916145][ T60] kthread+0x3f5/0x4f0
[ 41.920219][ T60] ? worker_clr_flags+0x190/0x190
[ 41.925250][ T60] ? kthread_blkcg+0xd0/0xd0
[ 41.929932][ T60] ret_from_fork+0x1f/0x30
[ 41.934474][ T60]
[ 41.937571][ T33] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 41.944774][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 41.954905][ T33] Workqueue: writeback wb_workfn (flush-8:0)
[ 41.961584][ T33] Call Trace:
[ 41.965286][ T33]
[ 41.968305][ T33] __dump_stack+0x21/0x30
[ 41.972636][ T33] dump_stack_lvl+0x110/0x170
[ 41.977415][ T33] ? show_regs_print_info+0x20/0x20
[ 41.982669][ T33] ? prandom_u32+0x24d/0x290
[ 41.987258][ T33] dump_stack+0x15/0x20
[ 41.991611][ T33] should_fail+0x3ab/0x500
[ 41.996376][ T33] __should_failslab+0xa4/0xe0
[ 42.001323][ T33] should_failslab+0x9/0x20
[ 42.006050][ T33] slab_pre_alloc_hook+0x39/0xd0
[ 42.011081][ T33] ? mempool_alloc_slab+0x1d/0x30
[ 42.016850][ T33] kmem_cache_alloc+0x44/0x260
[ 42.022629][ T33] ? mempool_free+0x330/0x330
[ 42.028324][ T33] mempool_alloc_slab+0x1d/0x30
[ 42.033570][ T33] mempool_alloc+0x167/0x4c0
[ 42.038422][ T33] ? blk_mq_delay_run_hw_queue+0x30/0x30
[ 42.044820][ T33] ? mempool_resize+0x880/0x880
[ 42.050677][ T33] ? blk_mq_sched_insert_requests+0x216/0x340
[ 42.058347][ T33] bio_alloc_bioset+0x124/0x910
[ 42.063486][ T33] bio_split+0xb4/0x310
[ 42.068346][ T33] __blk_queue_split+0xf6f/0x15c0
[ 42.073971][ T33] ? blk_end_sync_rq+0x50/0x50
[ 42.078842][ T33] ? preempt_count_add+0x90/0x1b0
[ 42.084486][ T33] blk_mq_submit_bio+0x1cc/0x1900
[ 42.089883][ T33] ? ktime_get+0x12f/0x160
[ 42.094591][ T33] ? submit_bio_checks+0xb77/0x11e0
[ 42.100067][ T33] ? blk_mq_try_issue_list_directly+0x490/0x490
[ 42.106431][ T33] ? __submit_bio+0x900/0x900
[ 42.111184][ T33] ? blk_try_enter_queue+0x165/0x350
[ 42.116754][ T33] __submit_bio+0x817/0x900
[ 42.121256][ T33] ? trace_raw_output_block_rq_remap+0x260/0x260
[ 42.128113][ T33] ? up_read+0x56/0x1d0
[ 42.132808][ T33] submit_bio_noacct+0x73b/0x800
[ 42.137769][ T33] ? __this_cpu_preempt_check+0x13/0x20
[ 42.143577][ T33] ? __mod_memcg_lruvec_state+0x122/0x1b0
[ 42.149784][ T33] ? blk_put_request+0x20/0x20
[ 42.154805][ T33] ? fscrypt_mergeable_bio+0x1c6/0x670
[ 42.160283][ T33] ? blkcg_set_ioprio+0x1f6/0x320
[ 42.165535][ T33] submit_bio+0x367/0x620
[ 42.170220][ T33] ? submit_bio_noacct+0x800/0x800
[ 42.175667][ T33] ? bio_add_page+0x2c2/0x460
[ 42.180457][ T33] ext4_bio_write_page+0xeff/0x1b40
[ 42.186045][ T33] mpage_submit_page+0x17d/0x220
[ 42.191846][ T33] ext4_writepages+0x19a3/0x30a0
[ 42.197499][ T33] ? ext4_readpage+0x220/0x220
[ 42.202262][ T33] ? __kasan_check_write+0x14/0x20
[ 42.207934][ T33] ? ext4_readpage+0x220/0x220
[ 42.213688][ T33] do_writepages+0x476/0x6d0
[ 42.218473][ T33] ? __writepage+0x130/0x130
[ 42.224647][ T33] ? __kasan_check_write+0x14/0x20
[ 42.232651][ T33] ? _raw_spin_lock+0x94/0xf0
[ 42.237465][ T33] __writeback_single_inode+0xd9/0x9e0
[ 42.243084][ T33] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 42.249773][ T33] writeback_sb_inodes+0x9f3/0x1610
[ 42.255291][ T33] ? queue_io+0x4b0/0x4b0
[ 42.259631][ T33] ? down_read_trylock+0x317/0x630
[ 42.264829][ T33] __writeback_inodes_wb+0x127/0x400
[ 42.270389][ T33] writeback_inodes_wb+0x19d/0x240
[ 42.276515][ T33] ? trace_writeback_pages_written+0xf0/0xf0
[ 42.283239][ T33] ? kvm_sched_clock_read+0x18/0x40
[ 42.288811][ T33] ? kthread_data+0x50/0xc0
[ 42.294627][ T33] wb_workfn+0xea3/0xf30
[ 42.300543][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 42.306439][ T33] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 42.313009][ T33] ? inode_wait_for_writeback+0x220/0x220
[ 42.318846][ T33] ? __kasan_check_write+0x14/0x20
[ 42.324497][ T33] ? _raw_spin_lock+0x94/0xf0
[ 42.329654][ T33] ? _raw_spin_trylock_bh+0x150/0x150
[ 42.336299][ T33] ? _raw_spin_unlock+0x4d/0x70
[ 42.341454][ T33] process_one_work+0x6c8/0xbb0
[ 42.346449][ T33] rescuer_thread+0x73d/0xf80
[ 42.351139][ T33] ? rcu_free_pwq+0x30/0x30
[ 42.356075][ T33] ? __kasan_check_read+0x11/0x20
[ 42.361622][ T33] ? __kthread_parkme+0xab/0x1f0
[ 42.366782][ T33] kthread+0x3f5/0x4f0
[ 42.370860][ T33] ? rcu_free_pwq+0x30/0x30
[ 42.375730][ T33] ? kthread_blkcg+0xd0/0xd0
[ 42.381129][ T33] ret_from_fork+0x1f/0x30
[ 42.386883][ T33]
[ 42.389994][ T1] CPU: 0 PID: 1 Comm: init Not tainted syzkaller #0
[ 42.390096][ C1] FAULT_INJECTION: forcing a failure.
[ 42.390096][ C1] name failslab, interval 1, probability 10, space 0, times 94
[ 42.398114][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 42.398131][ T1] Call Trace:
[ 42.398137][ T1]
[ 42.398143][ T1] __dump_stack+0x21/0x30
[ 42.398165][ T1] dump_stack_lvl+0x110/0x170
[ 42.398178][ T1] ? show_regs_print_info+0x20/0x20
[ 42.470209][ T1] ? prandom_u32+0x24d/0x290
[ 42.481043][ T1] dump_stack+0x15/0x20
[ 42.489199][ T1] should_fail+0x3ab/0x500
[ 42.496490][ T1] __should_failslab+0xa4/0xe0
[ 42.504116][ T1] should_failslab+0x9/0x20
[ 42.510181][ T1] slab_pre_alloc_hook+0x39/0xd0
[ 42.517042][ T1] __kmalloc+0x6d/0x2c0
[ 42.521745][ T1] ? should_failslab+0x9/0x20
[ 42.529509][ T1] ? security_prepare_creds+0x4e/0x140
[ 42.535346][ T1] security_prepare_creds+0x4e/0x140
[ 42.542303][ T1] prepare_creds+0x428/0x610
[ 42.547594][ T1] do_faccessat+0xe8/0x9b0
[ 42.552537][ T1] ? stream_open+0x60/0x60
[ 42.557341][ T1] ? debug_smp_processor_id+0x17/0x20
[ 42.563056][ T1] __x64_sys_access+0x61/0x70
[ 42.567928][ T1] x64_sys_call+0x78a/0x9a0
[ 42.572509][ T1] do_syscall_64+0x4c/0xa0
[ 42.577300][ T1] ? clear_bhb_loop+0x50/0xa0
[ 42.582266][ T1] ? clear_bhb_loop+0x50/0xa0
[ 42.587092][ T1] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 42.593265][ T1] RIP: 0033:0x7eff526712c7
[ 42.597684][ T1] Code: 0f 1f 00 8b 87 10 01 00 00 89 06 31 c0 c3 0f 1f 44 00 00 89 b7 10 01 00 00 31 c0 c3 0f 1f 80 00 00 00 00 b8 15 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 01 fb 0d 00 f7 d8 64 89 02 b8
[ 42.618017][ T1] RSP: 002b:00007ffd3527e428 EFLAGS: 00000246 ORIG_RAX: 0000000000000015
[ 42.626510][ T1] RAX: ffffffffffffffda RBX: 00007eff528077a9 RCX: 00007eff526712c7
[ 42.634870][ T1] RDX: 0000000000000000 RSI: 0000000000000006 RDI: 00007eff528077a9
[ 42.642930][ T1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 42.651497][ T1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 42.659982][ T1] R13: 0000000000000000 R14: 00000000000001d6 R15: 000055e432ee7d98
[ 42.668061][ T1]
[ 42.671161][ C1] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 42.671362][ T101] FAULT_INJECTION: forcing a failure.
[ 42.671362][ T101] name failslab, interval 1, probability 10, space 0, times 94
[ 42.678385][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 42.702073][ T60] FAULT_INJECTION: forcing a failure.
[ 42.702073][ T60] name failslab, interval 1, probability 10, space 0, times 93
[ 42.702675][ C1] Workqueue: writeback wb_workfn (flush-8:0)
[ 42.720922][ T90] FAULT_INJECTION: forcing a failure.
[ 42.720922][ T90] name failslab, interval 1, probability 10, space 0, times 92
[ 42.721986][ C1] Call Trace:
[ 42.721995][ C1]
[ 42.735244][ C0] FAULT_INJECTION: forcing a failure.
[ 42.735244][ C0] name failslab, interval 1, probability 10, space 0, times 92
[ 42.738356][ C1] __dump_stack+0x21/0x30
[ 42.758841][ C1] dump_stack_lvl+0x110/0x170
[ 42.763906][ C1] ? show_regs_print_info+0x20/0x20
[ 42.769197][ C1] ? prandom_u32+0x24d/0x290
[ 42.774021][ C1] dump_stack+0x15/0x20
[ 42.778176][ C1] should_fail+0x3ab/0x500
[ 42.782591][ C1] __should_failslab+0xa4/0xe0
[ 42.787565][ C1] should_failslab+0x9/0x20
[ 42.792447][ C1] slab_pre_alloc_hook+0x39/0xd0
[ 42.798022][ C1] ? __alloc_skb+0xe4/0x730
[ 42.802931][ C1] kmem_cache_alloc+0x44/0x260
[ 42.807798][ C1] __alloc_skb+0xe4/0x730
[ 42.812123][ C1] wg_packet_send_keepalive+0x62/0x1c0
[ 42.817839][ C1] ? wg_expired_send_persistent_keepalive+0x44/0x80
[ 42.826917][ C1] wg_expired_send_persistent_keepalive+0x53/0x80
[ 42.833965][ C1] ? wg_expired_zero_key_material+0x170/0x170
[ 42.840593][ C1] call_timer_fn+0x38/0x290
[ 42.845207][ C1] ? wg_expired_zero_key_material+0x170/0x170
[ 42.852069][ C1] __run_timers+0x637/0x9a0
[ 42.857237][ C1] ? calc_index+0x200/0x200
[ 42.862224][ C1] ? sched_clock_cpu+0x18/0x3d0
[ 42.867213][ C1] run_timer_softirq+0x6a/0xf0
[ 42.872187][ C1] handle_softirqs+0x250/0x560
[ 42.879806][ C1] ? irqtime_account_irq+0xbe/0x390
[ 42.885990][ C1] __irq_exit_rcu+0x52/0xf0
[ 42.891309][ C1] irq_exit_rcu+0x9/0x10
[ 42.896021][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 42.901830][ C1]
[ 42.905051][ C1]
[ 42.908058][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 42.914223][ C1] RIP: 0010:preempt_schedule_irq+0xa5/0x120
[ 42.920219][ C1] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 11 2d 95 fc fb bf 01 00 00 00 76 e4 ff ff fa bf 01 00 00 00 e8 ab 2e 95 fc 65 48 8b 1d 13 d7
[ 42.941640][ C1] RSP: 0018:ffffc9000022e3c0 EFLAGS: 00000246
[ 42.948097][ C1] RAX: 1ffff110210f03ce RBX: ffffc9000022e498 RCX: ffffffff870ccf00
[ 42.957448][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
[ 42.966944][ C1] RBP: ffffc9000022e448 R08: ffff8881087813c7 R09: 1ffff110210f0278
[ 42.976817][ C1] R10: dffffc0000000000 R11: ffffed10210f0279 R12: 0000000000000000
[ 42.986833][ C1] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000045c78
[ 42.995756][ C1] ? __cond_resched+0xd0/0xd0
[ 43.001019][ C1] irqentry_exit_cond_resched+0x29/0x30
[ 43.007877][ C1] irqentry_exit+0x37/0x40
[ 43.012565][ C1] sysvec_reschedule_ipi+0x78/0x80
[ 43.018026][ C1] asm_sysvec_reschedule_ipi+0x1b/0x20
[ 43.023908][ C1] RIP: 0010:dump_stack_lvl+0x144/0x170
[ 43.030064][ C1] Code: e6 00 02 00 00 31 ff e8 3a 77 be fc 49 81 e5 00 02 00 00 75 07 e8 ec 72 be fc eb 06 e8 e5 72 be fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40
[ 43.053300][ C1] RSP: 0018:ffffc9000022e540 EFLAGS: 00000293
[ 43.061248][ C1] RAX: ffffffff84ab43fb RBX: ffffffff8564c0a0 RCX: ffff8881087813c0
[ 43.077898][ C1] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
[ 43.087770][ C1] RBP: ffffc9000022e5c8 R08: 0000000000000003 R09: 0000000000000004
[ 43.099251][ C1] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000
[ 43.111343][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000045ca8
[ 43.120490][ C1] ? dump_stack_lvl+0x13b/0x170
[ 43.126760][ C1] ? show_regs_print_info+0x20/0x20
[ 43.134331][ C1] ? prandom_u32+0x24d/0x290
[ 43.139446][ C1] dump_stack+0x15/0x20
[ 43.144255][ C1] should_fail+0x3ab/0x500
[ 43.152550][ C1] __should_failslab+0xa4/0xe0
[ 43.157803][ C1] should_failslab+0x9/0x20
[ 43.164338][ C1] slab_pre_alloc_hook+0x39/0xd0
[ 43.169434][ C1] ? mempool_alloc_slab+0x1d/0x30
[ 43.174557][ C1] kmem_cache_alloc+0x44/0x260
[ 43.179677][ C1] ? mempool_free+0x330/0x330
[ 43.185614][ C1] mempool_alloc_slab+0x1d/0x30
[ 43.190934][ C1] mempool_alloc+0x167/0x4c0
[ 43.195978][ C1] ? blk_mq_delay_run_hw_queue+0x30/0x30
[ 43.201707][ C1] ? mempool_resize+0x880/0x880
[ 43.206687][ C1] ? blk_mq_sched_insert_requests+0x216/0x340
[ 43.213579][ C1] bio_alloc_bioset+0x124/0x910
[ 43.219503][ C1] bio_split+0xb4/0x310
[ 43.223829][ C1] __blk_queue_split+0xf6f/0x15c0
[ 43.231379][ C1] ? blk_end_sync_rq+0x50/0x50
[ 43.236981][ C1] ? preempt_count_add+0x90/0x1b0
[ 43.242760][ C1] blk_mq_submit_bio+0x1cc/0x1900
[ 43.248437][ C1] ? ktime_get+0x12f/0x160
[ 43.253942][ C1] ? submit_bio_checks+0xb77/0x11e0
[ 43.260606][ C1] ? blk_mq_try_issue_list_directly+0x490/0x490
[ 43.267823][ C1] ? __submit_bio+0x900/0x900
[ 43.274553][ C1] ? blk_try_enter_queue+0x165/0x350
[ 43.280257][ C1] __submit_bio+0x817/0x900
[ 43.285147][ C1] ? trace_raw_output_block_rq_remap+0x260/0x260
[ 43.291667][ C1] ? up_read+0x56/0x1d0
[ 43.295929][ C1] submit_bio_noacct+0x73b/0x800
[ 43.300873][ C1] ? __this_cpu_preempt_check+0x13/0x20
[ 43.306829][ C1] ? __mod_memcg_lruvec_state+0x122/0x1b0
[ 43.312919][ C1] ? blk_put_request+0x20/0x20
[ 43.317917][ C1] ? fscrypt_mergeable_bio+0x1c6/0x670
[ 43.323611][ C1] ? blkcg_set_ioprio+0x1f6/0x320
[ 43.329007][ C1] submit_bio+0x367/0x620
[ 43.333343][ C1] ? submit_bio_noacct+0x800/0x800
[ 43.338473][ C1] ? bio_add_page+0x2c2/0x460
[ 43.343340][ C1] ext4_bio_write_page+0xeff/0x1b40
[ 43.348648][ C1] mpage_submit_page+0x17d/0x220
[ 43.353745][ C1] ext4_writepages+0x19a3/0x30a0
[ 43.358691][ C1] ? ext4_readpage+0x220/0x220
[ 43.363453][ C1] ? __kasan_check_write+0x14/0x20
[ 43.368857][ C1] ? ext4_readpage+0x220/0x220
[ 43.373803][ C1] do_writepages+0x476/0x6d0
[ 43.378501][ C1] ? __writepage+0x130/0x130
[ 43.383533][ C1] ? __kasan_check_write+0x14/0x20
[ 43.388820][ C1] ? _raw_spin_lock+0x94/0xf0
[ 43.393614][ C1] __writeback_single_inode+0xd9/0x9e0
[ 43.399402][ C1] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 43.406226][ C1] writeback_sb_inodes+0x9f3/0x1610
[ 43.411822][ C1] ? queue_io+0x4b0/0x4b0
[ 43.416523][ C1] ? down_read_trylock+0x317/0x630
[ 43.422105][ C1] __writeback_inodes_wb+0x127/0x400
[ 43.428449][ C1] writeback_inodes_wb+0x19d/0x240
[ 43.434365][ C1] ? trace_writeback_pages_written+0xf0/0xf0
[ 43.440726][ C1] ? kvm_sched_clock_read+0x18/0x40
[ 43.448949][ C1] ? kthread_data+0x50/0xc0
[ 43.456145][ C1] wb_workfn+0xea3/0xf30
[ 43.462326][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 43.470517][ C1] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 43.479470][ C1] ? inode_wait_for_writeback+0x220/0x220
[ 43.486498][ C1] ? __kasan_check_write+0x14/0x20
[ 43.492911][ C1] ? _raw_spin_lock+0x94/0xf0
[ 43.499139][ C1] ? _raw_spin_trylock_bh+0x150/0x150
[ 43.506374][ C1] ? _raw_spin_unlock+0x4d/0x70
[ 43.511606][ C1] process_one_work+0x6c8/0xbb0
[ 43.517245][ C1] rescuer_thread+0x73d/0xf80
[ 43.522142][ C1] ? rcu_free_pwq+0x30/0x30
[ 43.527677][ C1] ? __kasan_check_read+0x11/0x20
[ 43.532696][ C1] ? __kthread_parkme+0xab/0x1f0
[ 43.538086][ C1] kthread+0x3f5/0x4f0
[ 43.542847][ C1] ? rcu_free_pwq+0x30/0x30
[ 43.548239][ C1] ? kthread_blkcg+0xd0/0xd0
[ 43.554632][ C1] ret_from_fork+0x1f/0x30
[ 43.560758][ C1]
[ 43.565344][ C0] CPU: 0 PID: 90 Comm: klogd Not tainted syzkaller #0
[ 43.565567][ C1] FAULT_INJECTION: forcing a failure.
[ 43.565567][ C1] name failslab, interval 1, probability 10, space 0, times 91
[ 43.572782][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 43.572800][ C0] Call Trace:
[ 43.572806][ C0]
[ 43.572812][ C0] __dump_stack+0x21/0x30
[ 43.572835][ C0] dump_stack_lvl+0x110/0x170
[ 43.613581][ C0] ? show_regs_print_info+0x20/0x20
[ 43.619647][ C0] ? prandom_u32+0x24d/0x290
[ 43.624260][ C0] dump_stack+0x15/0x20
[ 43.628623][ C0] should_fail+0x3ab/0x500
[ 43.633116][ C0] __should_failslab+0xa4/0xe0
[ 43.637901][ C0] should_failslab+0x9/0x20
[ 43.642690][ C0] slab_pre_alloc_hook+0x39/0xd0
[ 43.648435][ C0] ? __alloc_skb+0xe4/0x730
[ 43.654273][ C0] kmem_cache_alloc+0x44/0x260
[ 43.660491][ C0] __alloc_skb+0xe4/0x730
[ 43.664854][ C0] ndisc_send_rs+0x310/0x960
[ 43.670407][ C0] ? ndisc_send_rs+0xa1/0x960
[ 43.675513][ C0] addrconf_rs_timer+0x35a/0x600
[ 43.680718][ C0] ? addrconf_disable_policy_idev+0x360/0x360
[ 43.687232][ C0] ? _raw_spin_lock_irq+0x95/0xf0
[ 43.693136][ C0] ? _raw_spin_lock_irqsave+0x130/0x130
[ 43.698727][ C0] ? addrconf_disable_policy_idev+0x360/0x360
[ 43.704886][ C0] call_timer_fn+0x38/0x290
[ 43.709544][ C0] ? addrconf_disable_policy_idev+0x360/0x360
[ 43.715627][ C0] __run_timers+0x637/0x9a0
[ 43.720214][ C0] ? calc_index+0x200/0x200
[ 43.724843][ C0] ? sched_clock_cpu+0x18/0x3d0
[ 43.729974][ C0] run_timer_softirq+0x6a/0xf0
[ 43.734736][ C0] handle_softirqs+0x250/0x560
[ 43.739594][ C0] ? irqtime_account_irq+0xbe/0x390
[ 43.744803][ C0] __irq_exit_rcu+0x52/0xf0
[ 43.749300][ C0] irq_exit_rcu+0x9/0x10
[ 43.754005][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 43.760257][ C0]
[ 43.763373][ C0]
[ 43.766404][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 43.772571][ C0] RIP: 0010:console_unlock+0xb32/0xf10
[ 43.778146][ C0] Code: 28 4c 89 f6 48 81 e6 00 02 00 00 31 ff e8 86 bf 17 00 49 81 e6 00 02 00 00 75 07 e8 38 bb 17 00 eb 06 e8 31 bb 17 00 fb 89 d8 <0a> 44 24 1f a8 01 74 0e e8 21 bb 17 00 85 db 74 19 e9 1b 03 00 00
[ 43.798685][ C0] RSP: 0018:ffffc900009f7720 EFLAGS: 00000293
[ 43.804849][ C0] RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffff88810d74bb40
[ 43.813142][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
[ 43.821123][ C0] RBP: ffffc900009f7990 R08: 0000000000000003 R09: 0000000000000004
[ 43.829653][ C0] R10: dffffc0000000000 R11: fffff5200013eed4 R12: 000000000000008f
[ 43.837811][ C0] R13: fffff5200013eef0 R14: 0000000000000200 R15: dffffc0000000000
[ 43.846077][ C0] ? vprintk_emit+0x320/0x320
[ 43.851479][ C0] ? _raw_spin_lock+0xf0/0xf0
[ 43.858005][ C0] ? is_bpf_text_address+0x177/0x190
[ 43.864566][ C0] ? __kasan_check_write+0x14/0x20
[ 43.869971][ C0] ? _raw_spin_trylock_bh+0x150/0x150
[ 43.875808][ C0] vprintk_emit+0x13f/0x320
[ 43.881019][ C0] ? vprintk_store+0x13e0/0x13e0
[ 43.886661][ C0] vprintk_default+0x26/0x30
[ 43.891503][ C0] vprintk+0x7a/0x80
[ 43.896142][ C0] _printk+0xda/0x130
[ 43.900504][ C0] ? load_image+0x3f0/0x3f0
[ 43.905523][ C0] ? prandom_u32+0x24d/0x290
[ 43.910130][ C0] should_fail+0x38d/0x500
[ 43.914557][ C0] __should_failslab+0xa4/0xe0
[ 43.919319][ C0] should_failslab+0x9/0x20
[ 43.924121][ C0] slab_pre_alloc_hook+0x39/0xd0
[ 43.929728][ C0] ? __alloc_file+0x28/0x2a0
[ 43.934523][ C0] kmem_cache_alloc+0x44/0x260
[ 43.941183][ C0] __alloc_file+0x28/0x2a0
[ 43.945616][ C0] alloc_empty_file+0x97/0x180
[ 43.950379][ C0] alloc_file+0x59/0x580
[ 43.955293][ C0] alloc_file_pseudo+0x180/0x200
[ 43.960533][ C0] ? alloc_empty_file_noaccount+0x80/0x80
[ 43.966370][ C0] sock_alloc_file+0xba/0x260
[ 43.971609][ C0] __sys_socket+0x12b/0x190
[ 43.976129][ C0] __x64_sys_socket+0x7a/0x90
[ 43.980806][ C0] x64_sys_call+0x8c5/0x9a0
[ 43.985330][ C0] do_syscall_64+0x4c/0xa0
[ 43.990047][ C0] ? clear_bhb_loop+0x50/0xa0
[ 43.995235][ C0] ? clear_bhb_loop+0x50/0xa0
[ 44.000370][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 44.006652][ C0] RIP: 0033:0x7fe49a67c707
[ 44.011511][ C0] Code: 54 24 0c e8 6b ac ff ff 83 f8 ff 74 04 8b 44 24 0c 48 83 c4 18 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c1 e6 0c 00 f7 d8 64 89 01 48
[ 44.032206][ C0] RSP: 002b:00007ffcdc441578 EFLAGS: 00000202 ORIG_RAX: 0000000000000029
[ 44.040976][ C0] RAX: ffffffffffffffda RBX: 0000000000000055 RCX: 00007fe49a67c707
[ 44.049211][ C0] RDX: 0000000000000000 RSI: 0000000000080002 RDI: 0000000000000001
[ 44.057308][ C0] RBP: 00007fe49a708560 R08: 0000000000000000 R09: 0000000000000000
[ 44.065503][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002
[ 44.073477][ C0] R13: 00007ffcdc4416a0 R14: 000000000000003a R15: 00007ffcdc4416a0
[ 44.081718][ C0]
[ 44.084734][ C1] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 44.092286][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 44.102724][ C1] Workqueue: writeback wb_workfn (flush-8:0)
[ 44.108904][ C1] Call Trace:
[ 44.112170][ C1]
[ 44.115013][ C1] __dump_stack+0x21/0x30
[ 44.119427][ C1] dump_stack_lvl+0x110/0x170
[ 44.124284][ C1] ? show_regs_print_info+0x20/0x20
[ 44.130362][ C1] ? prandom_u32+0x24d/0x290
[ 44.135200][ C1] dump_stack+0x15/0x20
[ 44.139633][ C1] should_fail+0x3ab/0x500
[ 44.144229][ C1] __should_failslab+0xa4/0xe0
[ 44.148992][ C1] should_failslab+0x9/0x20
[ 44.154042][ C1] slab_pre_alloc_hook+0x39/0xd0
[ 44.159156][ C1] kmem_cache_alloc_trace+0x48/0x270
[ 44.164442][ C1] ? dst_cow_metrics_generic+0x55/0x1c0
[ 44.170268][ C1] dst_cow_metrics_generic+0x55/0x1c0
[ 44.175715][ C1] icmp6_dst_alloc+0x35f/0x520
[ 44.180747][ C1] ndisc_send_skb+0x2a9/0xcf0
[ 44.186208][ C1] ? mempool_alloc+0x167/0x4c0
[ 44.190986][ C1] ? bio_alloc_bioset+0x124/0x910
[ 44.196092][ C1] ? bio_split+0xb4/0x310
[ 44.200639][ C1] ? __blk_queue_split+0xf6f/0x15c0
[ 44.205856][ C1] ? blk_mq_submit_bio+0x1cc/0x1900
[ 44.211053][ C1] ? mpage_submit_page+0x17d/0x220
[ 44.216334][ C1] ? __writeback_inodes_wb+0x127/0x400
[ 44.221793][ C1] ? ndisc_alloc_skb+0x290/0x290
[ 44.226729][ C1] ? skb_put+0x10a/0x1f0
[ 44.230963][ C1] ndisc_send_rs+0x711/0x960
[ 44.236886][ C1] ? ndisc_send_rs+0xa1/0x960
[ 44.242773][ C1] addrconf_rs_timer+0x35a/0x600
[ 44.247739][ C1] ? addrconf_disable_policy_idev+0x360/0x360
[ 44.253902][ C1] ? addrconf_disable_policy_idev+0x360/0x360
[ 44.260222][ C1] call_timer_fn+0x38/0x290
[ 44.264942][ C1] ? addrconf_disable_policy_idev+0x360/0x360
[ 44.271144][ C1] __run_timers+0x637/0x9a0
[ 44.275846][ C1] ? calc_index+0x200/0x200
[ 44.280452][ C1] ? sched_clock_cpu+0x18/0x3d0
[ 44.285304][ C1] run_timer_softirq+0x6a/0xf0
[ 44.290095][ C1] handle_softirqs+0x250/0x560
[ 44.295293][ C1] ? irqtime_account_irq+0xbe/0x390
[ 44.300885][ C1] __irq_exit_rcu+0x52/0xf0
[ 44.305504][ C1] irq_exit_rcu+0x9/0x10
[ 44.309958][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 44.315844][ C1]
[ 44.318776][ C1]
[ 44.322010][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 44.328007][ C1] RIP: 0010:preempt_schedule_irq+0xa5/0x120
[ 44.334006][ C1] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 11 2d 95 fc fb bf 01 00 00 00 76 e4 ff ff fa bf 01 00 00 00 e8 ab 2e 95 fc 65 48 8b 1d 13 d7
[ 44.357247][ C1] RSP: 0018:ffffc9000022e3c0 EFLAGS: 00000246
[ 44.365670][ C1] RAX: 1ffff110210f03ce RBX: ffffc9000022e498 RCX: ffffffff870ccf00
[ 44.374992][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
[ 44.383688][ C1] RBP: ffffc9000022e448 R08: ffff8881087813c7 R09: 1ffff110210f0278
[ 44.392200][ C1] R10: dffffc0000000000 R11: ffffed10210f0279 R12: 0000000000000000
[ 44.400850][ C1] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000045c78
[ 44.409329][ C1] ? __cond_resched+0xd0/0xd0
[ 44.415533][ C1] irqentry_exit_cond_resched+0x29/0x30
[ 44.422308][ C1] irqentry_exit+0x37/0x40
[ 44.428662][ C1] sysvec_reschedule_ipi+0x78/0x80
[ 44.435098][ C1] asm_sysvec_reschedule_ipi+0x1b/0x20
[ 44.441518][ C1] RIP: 0010:dump_stack_lvl+0x144/0x170
[ 44.450732][ C1] Code: e6 00 02 00 00 31 ff e8 3a 77 be fc 49 81 e5 00 02 00 00 75 07 e8 ec 72 be fc eb 06 e8 e5 72 be fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40
[ 44.481132][ T480] FAULT_INJECTION: forcing a failure.
[ 44.481132][ T480] name failslab, interval 1, probability 10, space 0, times 90
[ 44.485197][ C1] RSP: 0018:ffffc9000022e540 EFLAGS: 00000293
[ 44.507019][ C1] RAX: ffffffff84ab43fb RBX: ffffffff8564c0a0 RCX: ffff8881087813c0
[ 44.518098][ C1] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
[ 44.529381][ C1] RBP: ffffc9000022e5c8 R08: 0000000000000003 R09: 0000000000000004
[ 44.538410][ C1] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000
[ 44.547821][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000045ca8
[ 44.560697][ C1] ? dump_stack_lvl+0x13b/0x170
[ 44.566926][ C1] ? show_regs_print_info+0x20/0x20
[ 44.575700][ C1] ? prandom_u32+0x24d/0x290
[ 44.583706][ C1] dump_stack+0x15/0x20
[ 44.588179][ C1] should_fail+0x3ab/0x500
[ 44.593338][ C1] __should_failslab+0xa4/0xe0
[ 44.598984][ C1] should_failslab+0x9/0x20
[ 44.604994][ C1] slab_pre_alloc_hook+0x39/0xd0
[ 44.614433][ C1] ? mempool_alloc_slab+0x1d/0x30
[ 44.622725][ C1] kmem_cache_alloc+0x44/0x260
[ 44.628427][ C1] ? mempool_free+0x330/0x330
[ 44.635828][ C1] mempool_alloc_slab+0x1d/0x30
[ 44.641921][ C1] mempool_alloc+0x167/0x4c0
[ 44.647340][ C1] ? blk_mq_delay_run_hw_queue+0x30/0x30
[ 44.654954][ C1] ? mempool_resize+0x880/0x880
[ 44.665416][ C1] ? blk_mq_sched_insert_requests+0x216/0x340
[ 44.675339][ C1] bio_alloc_bioset+0x124/0x910
[ 44.688236][ C1] bio_split+0xb4/0x310
[ 44.695785][ C1] __blk_queue_split+0xf6f/0x15c0
[ 44.701822][ C1] ? blk_end_sync_rq+0x50/0x50
[ 44.711601][ C1] ? preempt_count_add+0x90/0x1b0
[ 44.724492][ C1] blk_mq_submit_bio+0x1cc/0x1900
[ 44.733577][ C1] ? ktime_get+0x12f/0x160
[ 44.739671][ C1] ? submit_bio_checks+0xb77/0x11e0
[ 44.746096][ C1] ? blk_mq_try_issue_list_directly+0x490/0x490
[ 44.754340][ C1] ? __submit_bio+0x900/0x900
[ 44.760988][ C1] ? blk_try_enter_queue+0x165/0x350
[ 44.766751][ C1] __submit_bio+0x817/0x900
[ 44.772400][ C1] ? trace_raw_output_block_rq_remap+0x260/0x260
[ 44.780631][ C1] ? up_read+0x56/0x1d0
[ 44.785138][ C1] submit_bio_noacct+0x73b/0x800
[ 44.790362][ C1] ? __this_cpu_preempt_check+0x13/0x20
[ 44.797259][ C1] ? __mod_memcg_lruvec_state+0x122/0x1b0
[ 44.803521][ C1] ? blk_put_request+0x20/0x20
[ 44.810257][ C1] ? fscrypt_mergeable_bio+0x1c6/0x670
[ 44.815944][ C1] ? blkcg_set_ioprio+0x1f6/0x320
[ 44.821741][ C1] submit_bio+0x367/0x620
[ 44.826272][ C1] ? submit_bio_noacct+0x800/0x800
[ 44.831406][ C1] ? bio_add_page+0x2c2/0x460
[ 44.836183][ C1] ext4_bio_write_page+0xeff/0x1b40
[ 44.841578][ C1] mpage_submit_page+0x17d/0x220
[ 44.846513][ C1] ext4_writepages+0x19a3/0x30a0
[ 44.851529][ C1] ? ext4_readpage+0x220/0x220
[ 44.857497][ C1] ? __kasan_check_write+0x14/0x20
[ 44.865749][ C1] ? ext4_readpage+0x220/0x220
[ 44.871592][ C1] do_writepages+0x476/0x6d0
[ 44.876396][ C1] ? __writepage+0x130/0x130
[ 44.881304][ C1] ? __kasan_check_write+0x14/0x20
[ 44.886694][ C1] ? _raw_spin_lock+0x94/0xf0
[ 44.893550][ C1] __writeback_single_inode+0xd9/0x9e0
[ 44.899517][ C1] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 44.906160][ C1] writeback_sb_inodes+0x9f3/0x1610
[ 44.911612][ C1] ? queue_io+0x4b0/0x4b0
[ 44.916472][ C1] ? down_read_trylock+0x317/0x630
[ 44.922954][ C1] __writeback_inodes_wb+0x127/0x400
[ 44.930022][ C1] writeback_inodes_wb+0x19d/0x240
[ 44.938086][ C1] ? trace_writeback_pages_written+0xf0/0xf0
[ 44.947877][ C1] ? kvm_sched_clock_read+0x18/0x40
[ 44.956077][ C1] ? kthread_data+0x50/0xc0
[ 44.962710][ C1] wb_workfn+0xea3/0xf30
[ 44.969063][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 44.976568][ C1] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 44.986150][ C1] ? inode_wait_for_writeback+0x220/0x220
[ 44.993090][ C1] ? __kasan_check_write+0x14/0x20
[ 44.998914][ C1] ? _raw_spin_lock+0x94/0xf0
[ 45.004976][ C1] ? _raw_spin_trylock_bh+0x150/0x150
[ 45.010959][ C1] ? _raw_spin_unlock+0x4d/0x70
[ 45.016120][ C1] process_one_work+0x6c8/0xbb0
[ 45.021850][ C1] rescuer_thread+0x73d/0xf80
[ 45.028154][ C1] ? rcu_free_pwq+0x30/0x30
[ 45.032928][ C1] ? __kasan_check_read+0x11/0x20
[ 45.038121][ C1] ? __kthread_parkme+0xab/0x1f0
[ 45.043851][ C1] kthread+0x3f5/0x4f0
[ 45.051039][ C1] ? rcu_free_pwq+0x30/0x30
[ 45.059795][ C1] ? kthread_blkcg+0xd0/0xd0
[ 45.067594][ C1] ret_from_fork+0x1f/0x30
[ 45.072335][ C1]
[ 45.076742][ T90] CPU: 0 PID: 90 Comm: klogd Not tainted syzkaller #0
[ 45.077409][ T33] FAULT_INJECTION: forcing a failure.
[ 45.077409][ T33] name failslab, interval 1, probability 10, space 0, times 88
[ 45.085746][ T90] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 45.085762][ T90] Call Trace:
[ 45.085768][ T90]
[ 45.085775][ T90] __dump_stack+0x21/0x30
[ 45.085797][ T90] dump_stack_lvl+0x110/0x170
[ 45.133779][ T90] ? show_regs_print_info+0x20/0x20
[ 45.139871][ T90] ? prandom_u32+0x24d/0x290
[ 45.146948][ T90] dump_stack+0x15/0x20
[ 45.152541][ T90] should_fail+0x3ab/0x500
[ 45.158586][ T90] __should_failslab+0xa4/0xe0
[ 45.165360][ T90] should_failslab+0x9/0x20
[ 45.172598][ T90] slab_pre_alloc_hook+0x39/0xd0
[ 45.178208][ T90] ? __alloc_file+0x28/0x2a0
[ 45.184330][ T90] kmem_cache_alloc+0x44/0x260
[ 45.194453][ T90] __alloc_file+0x28/0x2a0
[ 45.200321][ T90] alloc_empty_file+0x97/0x180
[ 45.205645][ T90] alloc_file+0x59/0x580
[ 45.210813][ T90] alloc_file_pseudo+0x180/0x200
[ 45.217250][ T90] ? alloc_empty_file_noaccount+0x80/0x80
[ 45.223291][ T90] sock_alloc_file+0xba/0x260
[ 45.229751][ T90] __sys_socket+0x12b/0x190
[ 45.236185][ T90] __x64_sys_socket+0x7a/0x90
[ 45.243036][ T90] x64_sys_call+0x8c5/0x9a0
[ 45.251019][ T90] do_syscall_64+0x4c/0xa0
[ 45.259365][ T90] ? clear_bhb_loop+0x50/0xa0
[ 45.266626][ T90] ? clear_bhb_loop+0x50/0xa0
[ 45.272638][ T90] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 45.281272][ T90] RIP: 0033:0x7fe49a67c707
[ 45.288628][ T90] Code: 54 24 0c e8 6b ac ff ff 83 f8 ff 74 04 8b 44 24 0c 48 83 c4 18 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c1 e6 0c 00 f7 d8 64 89 01 48
[ 45.319938][ T90] RSP: 002b:00007ffcdc441578 EFLAGS: 00000202 ORIG_RAX: 0000000000000029
[ 45.331379][ T90] RAX: ffffffffffffffda RBX: 0000000000000055 RCX: 00007fe49a67c707
[ 45.341139][ T90] RDX: 0000000000000000 RSI: 0000000000080002 RDI: 0000000000000001
[ 45.354640][ T90] RBP: 00007fe49a708560 R08: 0000000000000000 R09: 0000000000000000
[ 45.363997][ T90] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002
[ 45.373597][ T90] R13: 00007ffcdc4416a0 R14: 000000000000003a R15: 00007ffcdc4416a0
[ 45.381579][ T90]
[ 45.385079][ T33] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 45.393102][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 45.403802][ T33] Workqueue: writeback wb_workfn (flush-8:0)
[ 45.411059][ T33] Call Trace:
[ 45.416261][ T33]
[ 45.420144][ T33] __dump_stack+0x21/0x30
[ 45.425040][ T33] dump_stack_lvl+0x110/0x170
[ 45.430658][ T33] ? show_regs_print_info+0x20/0x20
[ 45.438554][ T33] ? prandom_u32+0x24d/0x290
[ 45.445152][ T33] dump_stack+0x15/0x20
[ 45.451849][ T33] should_fail+0x3ab/0x500
[ 45.457533][ T33] __should_failslab+0xa4/0xe0
[ 45.462844][ T33] should_failslab+0x9/0x20
[ 45.471433][ T33] slab_pre_alloc_hook+0x39/0xd0
[ 45.477237][ T33] ? mempool_alloc_slab+0x1d/0x30
[ 45.483340][ T33] kmem_cache_alloc+0x44/0x260
[ 45.488813][ T33] ? mempool_free+0x330/0x330
[ 45.493958][ T33] mempool_alloc_slab+0x1d/0x30
[ 45.499444][ T33] mempool_alloc+0x167/0x4c0
[ 45.504696][ T33] ? enqueue_task_rt+0x87d/0xdc0
[ 45.510092][ T33] ? mempool_resize+0x880/0x880
[ 45.515980][ T33] ? resched_curr+0xa0/0x320
[ 45.522381][ T33] ? wake_up_process+0x20/0x20
[ 45.537230][ T33] ? __kasan_check_read+0x11/0x20
[ 45.547246][ T33] sg_pool_alloc+0xb0/0xe0
[ 45.554641][ T33] __sg_alloc_table+0x1c1/0x6d0
[ 45.563802][ T33] sg_alloc_table_chained+0x8b/0x1e0
[ 45.572723][ T33] ? sg_alloc_table_chained+0x1e0/0x1e0
[ 45.581722][ T33] scsi_alloc_sgtables+0x292/0x8a0
[ 45.589727][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 45.598065][ T33] ? scsi_io_completion_action+0xce0/0xce0
[ 45.604771][ T33] ? rcu_report_exp_cpu_mult+0x134/0x2c0
[ 45.612248][ T33] sd_init_command+0x60e/0x2610
[ 45.617559][ T33] scsi_queue_rq+0x176e/0x31c0
[ 45.623320][ T33] blk_mq_dispatch_rq_list+0xa06/0x1c50
[ 45.629248][ T33] ? blk_mq_get_driver_tag+0x920/0x920
[ 45.635277][ T33] blk_mq_do_dispatch_sched+0xadf/0xc90
[ 45.640965][ T33] ? blk_mq_exit_sched+0x590/0x590
[ 45.646396][ T33] ? dump_stack_lvl+0x144/0x170
[ 45.651621][ T33] ? show_regs_print_info+0x20/0x20
[ 45.657282][ T33] ? prandom_u32+0x24d/0x290
[ 45.661868][ T33] __blk_mq_sched_dispatch_requests+0x32c/0x410
[ 45.668409][ T33] ? __kasan_check_write+0x14/0x20
[ 45.674157][ T33] ? blk_mq_sched_dispatch_requests+0x1c0/0x1c0
[ 45.680502][ T33] blk_mq_sched_dispatch_requests+0x102/0x1c0
[ 45.687015][ T33] __blk_mq_run_hw_queue+0xf3/0x170
[ 45.692481][ T33] __blk_mq_delay_run_hw_queue+0x17e/0x420
[ 45.698619][ T33] ? blk_mq_delay_run_hw_queue+0x30/0x30
[ 45.704433][ T33] ? sbitmap_any_bit_set+0x119/0x160
[ 45.710047][ T33] blk_mq_run_hw_queue+0x282/0x3a0
[ 45.715872][ T33] blk_mq_sched_insert_requests+0x1cd/0x340
[ 45.722148][ T33] blk_mq_flush_plug_list+0x4e2/0x6b0
[ 45.727778][ T33] ? blk_mq_insert_requests+0x340/0x340
[ 45.734066][ T33] ? dd_prepare_request+0xd/0x40
[ 45.739747][ T33] blk_flush_plug_list+0x404/0x450
[ 45.745264][ T33] ? blk_check_plugged+0x270/0x270
[ 45.750550][ T33] ? blk_account_io_start+0x2b8/0x2f0
[ 45.756091][ T33] blk_mq_submit_bio+0xb23/0x1900
[ 45.761213][ T33] ? ktime_get+0x12f/0x160
[ 45.766203][ T33] ? blk_mq_try_issue_list_directly+0x490/0x490
[ 45.777918][ T33] ? __submit_bio+0x900/0x900
[ 45.787488][ T33] ? blk_try_enter_queue+0x165/0x350
[ 45.791279][ T1] FAULT_INJECTION: forcing a failure.
[ 45.791279][ T1] name failslab, interval 1, probability 10, space 0, times 87
[ 45.796089][ T33] __submit_bio+0x817/0x900
[ 45.820823][ T33] ? trace_raw_output_block_rq_remap+0x260/0x260
[ 45.828887][ T33] ? up_read+0x56/0x1d0
[ 45.835930][ T33] submit_bio_noacct+0x73b/0x800
[ 45.844601][ T33] ? __this_cpu_preempt_check+0x13/0x20
[ 45.851971][ T33] ? __mod_memcg_lruvec_state+0x122/0x1b0
[ 45.858002][ T33] ? blk_put_request+0x20/0x20
[ 45.863337][ T33] ? fscrypt_mergeable_bio+0x1c6/0x670
[ 45.868825][ T33] ? blkcg_set_ioprio+0x1f6/0x320
[ 45.874278][ T33] submit_bio+0x367/0x620
[ 45.879245][ T33] ? submit_bio_noacct+0x800/0x800
[ 45.885857][ T33] ? bio_add_page+0x2c2/0x460
[ 45.891075][ T33] ext4_bio_write_page+0xeff/0x1b40
[ 45.900672][ T33] mpage_submit_page+0x17d/0x220
[ 45.915473][ T33] ext4_writepages+0x19a3/0x30a0
[ 45.928635][ T33] ? ext4_readpage+0x220/0x220
[ 45.934938][ T33] ? __kasan_check_write+0x14/0x20
[ 45.941665][ T33] ? ext4_readpage+0x220/0x220
[ 45.948221][ T33] do_writepages+0x476/0x6d0
[ 45.953023][ T33] ? __writepage+0x130/0x130
[ 45.958787][ T33] ? __kasan_check_write+0x14/0x20
[ 45.964087][ T33] ? _raw_spin_lock+0x94/0xf0
[ 45.968956][ T33] __writeback_single_inode+0xd9/0x9e0
[ 45.974993][ T33] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 45.983352][ T33] writeback_sb_inodes+0x9f3/0x1610
[ 45.993499][ T33] ? queue_io+0x4b0/0x4b0
[ 45.999916][ T33] ? down_read_trylock+0x317/0x630
[ 46.005709][ T33] __writeback_inodes_wb+0x127/0x400
[ 46.011963][ T33] writeback_inodes_wb+0x19d/0x240
[ 46.017670][ T33] ? trace_writeback_pages_written+0xf0/0xf0
[ 46.025747][ T33] ? kvm_sched_clock_read+0x18/0x40
[ 46.037150][ T33] ? kthread_data+0x50/0xc0
[ 46.048207][ T33] wb_workfn+0xea3/0xf30
[ 46.055559][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 46.064800][ T33] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 46.071420][ T33] ? inode_wait_for_writeback+0x220/0x220
[ 46.077751][ T33] ? __kasan_check_write+0x14/0x20
[ 46.083834][ T33] ? _raw_spin_lock+0x94/0xf0
[ 46.091131][ T33] ? _raw_spin_trylock_bh+0x150/0x150
[ 46.098173][ T33] ? _raw_spin_unlock+0x4d/0x70
[ 46.103425][ T33] process_one_work+0x6c8/0xbb0
[ 46.109129][ T33] rescuer_thread+0x73d/0xf80
[ 46.114972][ T33] ? rcu_free_pwq+0x30/0x30
[ 46.119865][ T33] ? __kasan_check_read+0x11/0x20
[ 46.126714][ T33] ? __kthread_parkme+0xab/0x1f0
[ 46.132702][ T33] kthread+0x3f5/0x4f0
[ 46.138326][ T33] ? rcu_free_pwq+0x30/0x30
[ 46.143218][ T33] ? kthread_blkcg+0xd0/0xd0
[ 46.149265][ T33] ret_from_fork+0x1f/0x30
[ 46.154706][ T33]
[ 46.158446][ T60] CPU: 0 PID: 60 Comm: kworker/0:2 Not tainted syzkaller #0
[ 46.160840][ T33] FAULT_INJECTION: forcing a failure.
[ 46.160840][ T33] name failslab, interval 1, probability 10, space 0, times 86
[ 46.167322][ T60] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 46.167339][ T60] Workqueue: ipv6_addrconf addrconf_dad_work
[ 46.167362][ T60] Call Trace:
[ 46.167368][ T60]
[ 46.167374][ T60] __dump_stack+0x21/0x30
[ 46.209014][ T60] dump_stack_lvl+0x110/0x170
[ 46.213711][ T60] ? show_regs_print_info+0x20/0x20
[ 46.219095][ T60] ? prandom_u32+0x24d/0x290
[ 46.223807][ T60] dump_stack+0x15/0x20
[ 46.228129][ T60] should_fail+0x3ab/0x500
[ 46.233536][ T60] __should_failslab+0xa4/0xe0
[ 46.242690][ T60] should_failslab+0x9/0x20
[ 46.247759][ T60] slab_pre_alloc_hook+0x39/0xd0
[ 46.253162][ T60] ? dst_alloc+0x15c/0x1d0
[ 46.258149][ T60] kmem_cache_alloc+0x44/0x260
[ 46.263461][ T60] ? ipv6_sysctl_rtcache_flush+0x100/0x100
[ 46.271157][ T60] dst_alloc+0x15c/0x1d0
[ 46.276394][ T60] icmp6_dst_alloc+0xec/0x520
[ 46.283479][ T60] ? security_sk_classify_flow+0x7b/0x90
[ 46.293435][ T60] ? icmpv6_flow_init+0xd2/0x130
[ 46.299923][ T60] ndisc_send_skb+0x2a9/0xcf0
[ 46.305831][ T60] ? ndisc_alloc_skb+0x290/0x290
[ 46.314079][ T60] ? skb_put+0x10a/0x1f0
[ 46.321090][ T60] ndisc_send_ns+0x879/0xb10
[ 46.330368][ T60] ? ndisc_send_skb+0xcf0/0xcf0
[ 46.335255][ T60] ? mod_delayed_work_on+0xa8/0xe0
[ 46.340673][ T60] addrconf_dad_work+0x9fa/0x1510
[ 46.346047][ T60] ? ipv6_get_saddr_eval+0xf70/0xf70
[ 46.351519][ T60] ? __kasan_check_write+0x14/0x20
[ 46.356917][ T60] ? pwq_activate_inactive_work+0x2ea/0x3f0
[ 46.363166][ T60] process_one_work+0x6c8/0xbb0
[ 46.368109][ T60] worker_thread+0xaa0/0x1250
[ 46.373185][ T60] ? __kasan_check_read+0x11/0x20
[ 46.378540][ T60] kthread+0x3f5/0x4f0
[ 46.382900][ T60] ? worker_clr_flags+0x190/0x190
[ 46.388590][ T60] ? kthread_blkcg+0xd0/0xd0
[ 46.395397][ T60] ret_from_fork+0x1f/0x30
[ 46.400608][ T60]
[ 46.404747][ T33] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 46.414879][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 46.439065][ T33] Workqueue: writeback wb_workfn (flush-8:0)
[ 46.447880][ T33] Call Trace:
[ 46.453457][ T33]
[ 46.457892][ T33] __dump_stack+0x21/0x30
[ 46.465045][ T33] dump_stack_lvl+0x110/0x170
[ 46.474007][ T33] ? show_regs_print_info+0x20/0x20
[ 46.485274][ T33] ? prandom_u32+0x24d/0x290
[ 46.495730][ T33] dump_stack+0x15/0x20
[ 46.502445][ T33] should_fail+0x3ab/0x500
[ 46.508721][ T33] __should_failslab+0xa4/0xe0
[ 46.515763][ T33] should_failslab+0x9/0x20
[ 46.520570][ T33] slab_pre_alloc_hook+0x39/0xd0
[ 46.525775][ T33] ? mempool_alloc_slab+0x1d/0x30
[ 46.533654][ T33] kmem_cache_alloc+0x44/0x260
[ 46.541449][ T33] ? mempool_free+0x330/0x330
[ 46.548251][ T33] mempool_alloc_slab+0x1d/0x30
[ 46.556531][ T33] mempool_alloc+0x167/0x4c0
[ 46.562345][ T33] ? blk_mq_delay_run_hw_queue+0x30/0x30
[ 46.570811][ T33] ? mempool_resize+0x880/0x880
[ 46.579661][ T33] ? blk_mq_sched_insert_requests+0x216/0x340
[ 46.586875][ T33] bio_alloc_bioset+0x124/0x910
[ 46.592827][ T33] bio_split+0xb4/0x310
[ 46.597555][ T33] __blk_queue_split+0xf6f/0x15c0
[ 46.602967][ T33] ? blk_end_sync_rq+0x50/0x50
[ 46.608752][ T33] blk_mq_submit_bio+0x1cc/0x1900
[ 46.614401][ T33] ? ktime_get+0x12f/0x160
[ 46.619183][ T33] ? submit_bio_checks+0xb77/0x11e0
[ 46.625017][ T33] ? blk_mq_try_issue_list_directly+0x490/0x490
[ 46.631479][ T33] ? __submit_bio+0x900/0x900
[ 46.636268][ T33] ? blk_try_enter_queue+0x165/0x350
[ 46.641867][ T33] __submit_bio+0x817/0x900
[ 46.646801][ T33] ? trace_raw_output_block_rq_remap+0x260/0x260
[ 46.653426][ T33] ? up_read+0x56/0x1d0
[ 46.657686][ T33] submit_bio_noacct+0x73b/0x800
[ 46.663406][ T33] ? __this_cpu_preempt_check+0x13/0x20
[ 46.669432][ T33] ? __mod_memcg_lruvec_state+0x122/0x1b0
[ 46.676056][ T33] ? blk_put_request+0x20/0x20
[ 46.682286][ T33] ? fscrypt_mergeable_bio+0x1c6/0x670
[ 46.688311][ T33] ? blkcg_set_ioprio+0x1f6/0x320
[ 46.694527][ T33] submit_bio+0x367/0x620
[ 46.699500][ T33] ? submit_bio_noacct+0x800/0x800
[ 46.705064][ T33] ? bio_add_page+0x2c2/0x460
[ 46.709829][ T33] ext4_bio_write_page+0xeff/0x1b40
[ 46.715145][ T33] mpage_submit_page+0x17d/0x220
[ 46.720228][ T33] ext4_writepages+0x19a3/0x30a0
[ 46.725386][ T33] ? ext4_readpage+0x220/0x220
[ 46.730583][ T33] ? __kasan_check_write+0x14/0x20
[ 46.736065][ T33] ? ext4_readpage+0x220/0x220
[ 46.741019][ T33] do_writepages+0x476/0x6d0
[ 46.745643][ T33] ? __writepage+0x130/0x130
[ 46.750323][ T33] ? __kasan_check_write+0x14/0x20
[ 46.755711][ T33] ? _raw_spin_lock+0x94/0xf0
[ 46.760982][ T33] __writeback_single_inode+0xd9/0x9e0
[ 46.766896][ T33] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 46.772886][ T33] writeback_sb_inodes+0x9f3/0x1610
[ 46.778622][ T33] ? queue_io+0x4b0/0x4b0
[ 46.783927][ T33] ? down_read_trylock+0x317/0x630
[ 46.789517][ T33] __writeback_inodes_wb+0x127/0x400
[ 46.795777][ T33] writeback_inodes_wb+0x19d/0x240
[ 46.801543][ T33] ? trace_writeback_pages_written+0xf0/0xf0
[ 46.807753][ T33] ? kvm_sched_clock_read+0x18/0x40
[ 46.813375][ T33] ? kthread_data+0x50/0xc0
[ 46.818310][ T33] wb_workfn+0xea3/0xf30
[ 46.822719][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 46.829327][ T33] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 46.837444][ T33] ? inode_wait_for_writeback+0x220/0x220
[ 46.844092][ T33] ? __kasan_check_write+0x14/0x20
[ 46.849879][ T33] ? _raw_spin_lock+0x94/0xf0
[ 46.855264][ T33] ? _raw_spin_trylock_bh+0x150/0x150
[ 46.861256][ T33] ? _raw_spin_unlock+0x4d/0x70
[ 46.866417][ T33] process_one_work+0x6c8/0xbb0
[ 46.876526][ T33] rescuer_thread+0x73d/0xf80
[ 46.881243][ T33] ? rcu_free_pwq+0x30/0x30
[ 46.886814][ T33] ? __kasan_check_read+0x11/0x20
[ 46.891849][ T33] ? __kthread_parkme+0xab/0x1f0
[ 46.897135][ T33] kthread+0x3f5/0x4f0
[ 46.901340][ T33] ? rcu_free_pwq+0x30/0x30
[ 46.906264][ T33] ? kthread_blkcg+0xd0/0xd0
[ 46.910859][ T33] ret_from_fork+0x1f/0x30
[ 46.915444][ T33]
[ 46.918818][ T101] CPU: 0 PID: 101 Comm: udevd Not tainted syzkaller #0
[ 46.920641][ T33] FAULT_INJECTION: forcing a failure.
[ 46.920641][ T33] name failslab, interval 1, probability 10, space 0, times 84
[ 46.926487][ T101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 46.926502][ T101] Call Trace:
[ 46.926508][ T101]
[ 46.926515][ T101] __dump_stack+0x21/0x30
[ 46.926535][ T101] dump_stack_lvl+0x110/0x170
[ 46.926548][ T101] ? show_regs_print_info+0x20/0x20
[ 46.926564][ T101] dump_stack+0x15/0x20
[ 46.926577][ T101] should_fail+0x3ab/0x500
[ 46.926591][ T101] __should_failslab+0xa4/0xe0
[ 46.926609][ T101] should_failslab+0x9/0x20
[ 46.926625][ T101] slab_pre_alloc_hook+0x39/0xd0
[ 46.926644][ T101] ? getname_flags+0xba/0x510
[ 46.926660][ T101] kmem_cache_alloc+0x44/0x260
[ 46.926678][ T101] getname_flags+0xba/0x510
[ 46.926694][ T101] user_path_at_empty+0x2f/0x1c0
[ 46.926710][ T101] vfs_statx+0x109/0xa20
[ 47.026747][ T101] ? do_epoll_wait+0x16c3/0x1750
[ 47.033898][ T101] ? vfs_fstatat+0x40/0x40
[ 47.040654][ T101] __se_sys_newfstatat+0x10e/0x3d0
[ 47.048757][ T101] ? __x64_sys_newfstatat+0xb0/0xb0
[ 47.054457][ T101] ? ep_destroy_wakeup_source+0x50/0x50
[ 47.060608][ T101] ? do_epoll_wait+0x1750/0x1750
[ 47.066686][ T101] ? blkcg_maybe_throttle_current+0x1e0/0xa00
[ 47.074007][ T101] ? __fput+0x67c/0x900
[ 47.078752][ T101] ? __kasan_check_write+0x14/0x20
[ 47.084064][ T101] ? switch_fpu_return+0x15d/0x2c0
[ 47.089705][ T101] __x64_sys_newfstatat+0x9b/0xb0
[ 47.096304][ T101] x64_sys_call+0x2c1/0x9a0
[ 47.101679][ T101] do_syscall_64+0x4c/0xa0
[ 47.106854][ T101] ? clear_bhb_loop+0x50/0xa0
[ 47.112338][ T101] ? clear_bhb_loop+0x50/0xa0
[ 47.117676][ T101] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 47.124538][ T101] RIP: 0033:0x7f6df5174b0a
[ 47.129044][ T101] Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7
[ 47.149971][ T101] RSP: 002b:00007ffe96fe0d68 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
[ 47.159548][ T101] RAX: ffffffffffffffda RBX: 000055701ccb9400 RCX: 00007f6df5174b0a
[ 47.168231][ T101] RDX: 00007ffe96fe0d70 RSI: 000055701cca7296 RDI: 00000000ffffff9c
[ 47.176576][ T101] RBP: 0000557051a8d658 R08: 00000000028a56c6 R09: 002476a37d850d84
[ 47.184717][ T101] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 47.193339][ T101] R13: 00007ffe96fe0d70 R14: 0000000000000000 R15: 0000000000000000
[ 47.201869][ T101]
[ 47.204979][ T33] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 47.212524][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 47.224093][ T33] Workqueue: writeback wb_workfn (flush-8:0)
[ 47.230976][ T33] Call Trace:
[ 47.234814][ T33]
[ 47.238560][ T33] __dump_stack+0x21/0x30
[ 47.243656][ T33] dump_stack_lvl+0x110/0x170
[ 47.249045][ T33] ? show_regs_print_info+0x20/0x20
[ 47.256261][ T33] ? prandom_u32+0x24d/0x290
[ 47.261571][ T33] dump_stack+0x15/0x20
[ 47.265982][ T33] should_fail+0x3ab/0x500
[ 47.271009][ T33] __should_failslab+0xa4/0xe0
[ 47.276038][ T33] should_failslab+0x9/0x20
[ 47.281417][ T33] slab_pre_alloc_hook+0x39/0xd0
[ 47.288341][ T33] ? mempool_alloc_slab+0x1d/0x30
[ 47.294841][ T33] kmem_cache_alloc+0x44/0x260
[ 47.299794][ T33] ? __alloc_pages+0x1a2/0x460
[ 47.304762][ T33] ? mempool_free+0x330/0x330
[ 47.309875][ T33] mempool_alloc_slab+0x1d/0x30
[ 47.314813][ T33] mempool_alloc+0x167/0x4c0
[ 47.319504][ T33] ? sched_clock+0x9/0x10
[ 47.323929][ T33] ? sched_clock_cpu+0x18/0x3d0
[ 47.328959][ T33] ? page_ext_put+0x1c/0x30
[ 47.333700][ T33] ? mempool_resize+0x880/0x880
[ 47.338562][ T33] bio_alloc_bioset+0x124/0x910
[ 47.343419][ T33] bio_split+0xb4/0x310
[ 47.347576][ T33] __blk_queue_split+0xf6f/0x15c0
[ 47.352676][ T33] ? blk_end_sync_rq+0x50/0x50
[ 47.357437][ T33] ? stack_trace_save+0xa6/0xf0
[ 47.362279][ T33] blk_mq_submit_bio+0x1cc/0x1900
[ 47.367847][ T33] ? ktime_get+0x12f/0x160
[ 47.372660][ T33] ? submit_bio_checks+0xb50/0x11e0
[ 47.378490][ T33] ? kmem_cache_alloc+0xf7/0x260
[ 47.383890][ T33] ? mempool_alloc_slab+0x1d/0x30
[ 47.389775][ T33] ? blk_mq_try_issue_list_directly+0x490/0x490
[ 47.396774][ T33] ? __submit_bio+0x900/0x900
[ 47.401543][ T33] ? blk_try_enter_queue+0x165/0x350
[ 47.407183][ T33] __submit_bio+0x817/0x900
[ 47.412543][ T33] ? trace_raw_output_block_rq_remap+0x260/0x260
[ 47.419785][ T33] ? up_read+0x56/0x1d0
[ 47.424246][ T33] submit_bio_noacct+0x6b7/0x800
[ 47.430014][ T33] ? __this_cpu_preempt_check+0x13/0x20
[ 47.439747][ T33] ? __mod_memcg_lruvec_state+0x164/0x1b0
[ 47.449048][ T33] ? blk_put_request+0x20/0x20
[ 47.455107][ T33] ? fscrypt_mergeable_bio+0x1c6/0x670
[ 47.462472][ T33] ? page_mapping+0x210/0x2d0
[ 47.469540][ T33] ? blkcg_set_ioprio+0x1f6/0x320
[ 47.475986][ T33] submit_bio+0x367/0x620
[ 47.483144][ T33] ? submit_bio_noacct+0x800/0x800
[ 47.489836][ T33] ? bio_add_page+0x2c2/0x460
[ 47.496514][ T33] ext4_bio_write_page+0xeff/0x1b40
[ 47.505788][ T33] mpage_submit_page+0x17d/0x220
[ 47.512471][ T33] ext4_writepages+0x19a3/0x30a0
[ 47.518872][ T33] ? ext4_readpage+0x220/0x220
[ 47.524206][ T33] ? __kasan_check_write+0x14/0x20
[ 47.530089][ T33] ? ext4_readpage+0x220/0x220
[ 47.535234][ T33] do_writepages+0x476/0x6d0
[ 47.540954][ T33] ? __writepage+0x130/0x130
[ 47.546656][ T33] ? __kasan_check_write+0x14/0x20
[ 47.555520][ T33] ? _raw_spin_lock+0x94/0xf0
[ 47.564905][ T33] __writeback_single_inode+0xd9/0x9e0
[ 47.574206][ T33] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 47.584560][ T33] writeback_sb_inodes+0x9f3/0x1610
[ 47.593489][ T33] ? queue_io+0x4b0/0x4b0
[ 47.602227][ T33] ? down_read_trylock+0x317/0x630
[ 47.610163][ T33] __writeback_inodes_wb+0x127/0x400
[ 47.619319][ T33] writeback_inodes_wb+0x19d/0x240
[ 47.625893][ T33] ? trace_writeback_pages_written+0xf0/0xf0
[ 47.633575][ T33] ? kvm_sched_clock_read+0x18/0x40
[ 47.641407][ T33] ? kthread_data+0x50/0xc0
[ 47.648392][ T33] wb_workfn+0xea3/0xf30
[ 47.654504][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 47.664699][ T33] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 47.677548][ T33] ? inode_wait_for_writeback+0x220/0x220
[ 47.686997][ T33] ? __kasan_check_write+0x14/0x20
[ 47.698091][ T33] ? _raw_spin_lock+0x94/0xf0
[ 47.704333][ T33] ? _raw_spin_trylock_bh+0x150/0x150
[ 47.713790][ T33] ? _raw_spin_unlock+0x4d/0x70
[ 47.719583][ T33] process_one_work+0x6c8/0xbb0
[ 47.724809][ T33] rescuer_thread+0x73d/0xf80
[ 47.731227][ T33] ? rcu_free_pwq+0x30/0x30
[ 47.737731][ T33] ? __kasan_check_read+0x11/0x20
[ 47.743415][ T33] ? __kthread_parkme+0xab/0x1f0
[ 47.749352][ T33] kthread+0x3f5/0x4f0
[ 47.754445][ T33] ? rcu_free_pwq+0x30/0x30
[ 47.759778][ T33] ? kthread_blkcg+0xd0/0xd0
[ 47.767899][ T33] ret_from_fork+0x1f/0x30
[ 47.774881][ T33]
[ 47.779538][ T416] CPU: 0 PID: 416 Comm: udevd Not tainted syzkaller #0
[ 47.779872][ T33] FAULT_INJECTION: forcing a failure.
[ 47.779872][ T33] name failslab, interval 1, probability 10, space 0, times 83
[ 47.790175][ T416] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 47.790194][ T416] Call Trace:
[ 47.790200][ T416]
[ 47.790207][ T416] __dump_stack+0x21/0x30
[ 47.790232][ T416] dump_stack_lvl+0x110/0x170
[ 47.790244][ T416] ? show_regs_print_info+0x20/0x20
[ 47.790257][ T416] ? prandom_u32+0x24d/0x290
[ 47.790272][ T416] dump_stack+0x15/0x20
[ 47.790284][ T416] should_fail+0x3ab/0x500
[ 47.860764][ T416] ? alloc_skb_with_frags+0xa8/0x620
[ 47.868780][ T416] __should_failslab+0xa4/0xe0
[ 47.878924][ T416] should_failslab+0x9/0x20
[ 47.885331][ T416] slab_pre_alloc_hook+0x39/0xd0
[ 47.892315][ T416] ? alloc_skb_with_frags+0xa8/0x620
[ 47.902292][ T416] ? alloc_skb_with_frags+0xa8/0x620
[ 47.908985][ T416] __kmalloc_track_caller+0x6c/0x2c0
[ 47.915248][ T416] ? alloc_skb_with_frags+0xa8/0x620
[ 47.921776][ T416] ? alloc_skb_with_frags+0xa8/0x620
[ 47.930522][ T416] __alloc_skb+0x210/0x730
[ 47.936632][ T416] alloc_skb_with_frags+0xa8/0x620
[ 47.946210][ T416] ? memcpy+0x56/0x70
[ 47.953920][ T416] sock_alloc_send_pskb+0x87f/0x9a0
[ 47.962072][ T416] ? sock_kzfree_s+0x60/0x60
[ 47.969846][ T416] ? __kasan_check_write+0x14/0x20
[ 47.977310][ T416] ? _raw_spin_lock+0x94/0xf0
[ 47.982746][ T416] ? _raw_spin_trylock_bh+0x150/0x150
[ 47.989123][ T416] unix_dgram_sendmsg+0x6f3/0x19b0
[ 47.994514][ T416] ? avc_has_perm_noaudit+0x490/0x490
[ 48.000898][ T416] ? unix_dgram_poll+0x6c0/0x6c0
[ 48.006018][ T416] ? security_socket_sendmsg+0x82/0xa0
[ 48.011829][ T416] sock_write_iter+0x2a6/0x3a0
[ 48.017123][ T416] ? sock_read_iter+0x380/0x380
[ 48.022665][ T416] ? ___sys_sendmsg+0x246/0x2e0
[ 48.028092][ T416] ? memset+0x35/0x40
[ 48.033396][ T416] ? iov_iter_init+0xbc/0x180
[ 48.039126][ T416] vfs_write+0x831/0xfd0
[ 48.045104][ T416] ? file_end_write+0x1b0/0x1b0
[ 48.054319][ T416] ? percpu_counter_add_batch+0x13c/0x160
[ 48.064062][ T416] ? __kasan_check_read+0x11/0x20
[ 48.071481][ T416] ? __fdget_pos+0x1f7/0x380
[ 48.078532][ T416] ksys_write+0x14a/0x260
[ 48.084549][ T416] ? __ia32_sys_read+0x90/0x90
[ 48.090662][ T416] ? debug_smp_processor_id+0x17/0x20
[ 48.097500][ T416] __x64_sys_write+0x7b/0x90
[ 48.102996][ T416] x64_sys_call+0x8ef/0x9a0
[ 48.109424][ T416] do_syscall_64+0x4c/0xa0
[ 48.117772][ T416] ? clear_bhb_loop+0x50/0xa0
[ 48.124217][ T416] ? clear_bhb_loop+0x50/0xa0
[ 48.131307][ T416] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 48.142118][ T416] RIP: 0033:0x7f6df510a407
[ 48.150467][ T416] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
[ 48.177860][ T416] RSP: 002b:00007ffe96fe0c10 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 48.190745][ T416] RAX: ffffffffffffffda RBX: 00007f6df501c880 RCX: 00007f6df510a407
[ 48.202265][ T416] RDX: 0000000000000000 RSI: 00007ffe96fe0cb7 RDI: 000000000000000a
[ 48.211709][ T416] RBP: 000000000000000a R08: 0000000000000000 R09: 0000000000000000
[ 48.222738][ T416] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f6df501c6e8
[ 48.234227][ T416] R13: 0000000000000000 R14: 0000000000000000 R15: 0000557051a84f80
[ 48.248921][ T416]
[ 48.252492][ T33] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 48.261712][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 48.275991][ T33] Workqueue: writeback wb_workfn (flush-8:0)
[ 48.286365][ T33] Call Trace:
[ 48.292636][ T33]
[ 48.298148][ T33] __dump_stack+0x21/0x30
[ 48.308505][ T33] dump_stack_lvl+0x110/0x170
[ 48.315743][ T33] ? show_regs_print_info+0x20/0x20
[ 48.323489][ T33] ? prandom_u32+0x24d/0x290
[ 48.330695][ T33] dump_stack+0x15/0x20
[ 48.336829][ T33] should_fail+0x3ab/0x500
[ 48.343450][ T33] __should_failslab+0xa4/0xe0
[ 48.349757][ T33] should_failslab+0x9/0x20
[ 48.356860][ T33] slab_pre_alloc_hook+0x39/0xd0
[ 48.362187][ T33] ? mempool_alloc_slab+0x1d/0x30
[ 48.367939][ T33] kmem_cache_alloc+0x44/0x260
[ 48.372991][ T33] ? mempool_free+0x330/0x330
[ 48.377819][ T33] mempool_alloc_slab+0x1d/0x30
[ 48.382956][ T33] mempool_alloc+0x167/0x4c0
[ 48.387948][ T33] ? virtqueue_add+0x3541/0x4210
[ 48.390977][ T90] FAULT_INJECTION: forcing a failure.
[ 48.390977][ T90] name failslab, interval 1, probability 10, space 0, times 82
[ 48.393625][ T33] ? mempool_resize+0x880/0x880
[ 48.413619][ T33] sg_pool_alloc+0xb0/0xe0
[ 48.418991][ T33] __sg_alloc_table+0x1c1/0x6d0
[ 48.425041][ T33] sg_alloc_table_chained+0x8b/0x1e0
[ 48.433692][ T33] ? sg_alloc_table_chained+0x1e0/0x1e0
[ 48.444293][ T33] scsi_alloc_sgtables+0x292/0x8a0
[ 48.453900][ T33] ? scsi_io_completion_action+0xce0/0xce0
[ 48.460264][ T33] sd_init_command+0x60e/0x2610
[ 48.466733][ T33] scsi_queue_rq+0x176e/0x31c0
[ 48.473556][ T33] blk_mq_dispatch_rq_list+0xa06/0x1c50
[ 48.480448][ T33] ? blk_mq_get_driver_tag+0x920/0x920
[ 48.488160][ T33] blk_mq_do_dispatch_sched+0xadf/0xc90
[ 48.494915][ T33] ? blk_mq_exit_sched+0x590/0x590
[ 48.501563][ T33] __blk_mq_sched_dispatch_requests+0x32c/0x410
[ 48.508831][ T33] ? blk_mq_sched_dispatch_requests+0x1c0/0x1c0
[ 48.515901][ T33] blk_mq_sched_dispatch_requests+0x102/0x1c0
[ 48.523781][ T33] __blk_mq_run_hw_queue+0xf3/0x170
[ 48.533056][ T33] __blk_mq_delay_run_hw_queue+0x17e/0x420
[ 48.543314][ T33] ? blk_mq_delay_run_hw_queue+0x30/0x30
[ 48.556850][ T33] ? sbitmap_any_bit_set+0x119/0x160
[ 48.562518][ T33] blk_mq_run_hw_queue+0x282/0x3a0
[ 48.571972][ T33] blk_mq_sched_insert_requests+0x1cd/0x340
[ 48.580386][ T33] blk_mq_flush_plug_list+0x4e2/0x6b0
[ 48.588824][ T33] ? blk_mq_insert_requests+0x340/0x340
[ 48.596814][ T33] ? dd_prepare_request+0xd/0x40
[ 48.603534][ T33] blk_flush_plug_list+0x404/0x450
[ 48.608926][ T33] ? blk_check_plugged+0x270/0x270
[ 48.614598][ T33] ? preempt_count_add+0x90/0x1b0
[ 48.621922][ T33] ? blk_account_io_start+0x2b8/0x2f0
[ 48.629508][ T33] blk_mq_submit_bio+0xb23/0x1900
[ 48.635220][ T33] ? ktime_get+0x12f/0x160
[ 48.640027][ T33] ? blk_mq_try_issue_list_directly+0x490/0x490
[ 48.646721][ T33] ? __submit_bio+0x900/0x900
[ 48.652109][ T33] ? blk_try_enter_queue+0x165/0x350
[ 48.657769][ T33] __submit_bio+0x817/0x900
[ 48.662281][ T33] ? trace_raw_output_block_rq_remap+0x260/0x260
[ 48.668708][ T33] ? up_read+0x56/0x1d0
[ 48.673198][ T33] submit_bio_noacct+0x73b/0x800
[ 48.678399][ T33] ? __this_cpu_preempt_check+0x13/0x20
[ 48.683972][ T33] ? __mod_memcg_lruvec_state+0x164/0x1b0
[ 48.689967][ T33] ? blk_put_request+0x20/0x20
[ 48.694740][ T33] ? fscrypt_mergeable_bio+0x1c6/0x670
[ 48.700626][ T33] ? page_mapping+0x210/0x2d0
[ 48.705409][ T33] ? blkcg_set_ioprio+0x1f6/0x320
[ 48.710434][ T33] submit_bio+0x367/0x620
[ 48.715048][ T33] ? submit_bio_noacct+0x800/0x800
[ 48.720170][ T33] ? bio_add_page+0x2c2/0x460
[ 48.725100][ T33] ext4_bio_write_page+0xeff/0x1b40
[ 48.730379][ T33] mpage_submit_page+0x17d/0x220
[ 48.735493][ T33] ext4_writepages+0x19a3/0x30a0
[ 48.740731][ T33] ? ext4_readpage+0x220/0x220
[ 48.746095][ T33] ? __kasan_check_write+0x14/0x20
[ 48.751534][ T33] ? ext4_readpage+0x220/0x220
[ 48.756452][ T33] do_writepages+0x476/0x6d0
[ 48.761397][ T33] ? __writepage+0x130/0x130
[ 48.766107][ T33] ? __kasan_check_write+0x14/0x20
[ 48.771489][ T33] ? _raw_spin_lock+0x94/0xf0
[ 48.776429][ T33] __writeback_single_inode+0xd9/0x9e0
[ 48.781698][ T6] FAULT_INJECTION: forcing a failure.
[ 48.781698][ T6] name failslab, interval 1, probability 10, space 0, times 82
[ 48.782000][ T33] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 48.801629][ T33] writeback_sb_inodes+0x9f3/0x1610
[ 48.807097][ T33] ? queue_io+0x4b0/0x4b0
[ 48.811421][ T33] ? down_read_trylock+0x317/0x630
[ 48.816863][ T33] __writeback_inodes_wb+0x127/0x400
[ 48.822170][ T33] writeback_inodes_wb+0x19d/0x240
[ 48.828139][ T33] ? trace_writeback_pages_written+0xf0/0xf0
[ 48.835410][ T33] ? kvm_sched_clock_read+0x18/0x40
[ 48.841736][ T33] ? kthread_data+0x50/0xc0
[ 48.847032][ T33] wb_workfn+0xea3/0xf30
[ 48.851766][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 48.857922][ T33] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 48.864436][ T33] ? inode_wait_for_writeback+0x220/0x220
[ 48.870276][ T33] ? __kasan_check_write+0x14/0x20
[ 48.875732][ T33] ? _raw_spin_lock+0x94/0xf0
[ 48.880517][ T33] ? _raw_spin_trylock_bh+0x150/0x150
[ 48.886063][ T33] ? _raw_spin_unlock+0x4d/0x70
[ 48.891427][ T33] process_one_work+0x6c8/0xbb0
[ 48.896706][ T33] rescuer_thread+0x73d/0xf80
[ 48.901815][ T33] ? rcu_free_pwq+0x30/0x30
[ 48.906491][ T33] ? __kasan_check_read+0x11/0x20
[ 48.911710][ T33] ? __kthread_parkme+0xab/0x1f0
[ 48.918512][ T33] kthread+0x3f5/0x4f0
[ 48.922675][ T33] ? rcu_free_pwq+0x30/0x30
[ 48.928481][ T33] ? kthread_blkcg+0xd0/0xd0
[ 48.933433][ T33] ret_from_fork+0x1f/0x30
[ 48.937969][ T33]
[ 48.941331][ T6] CPU: 0 PID: 6 Comm: kworker/0:0 Not tainted syzkaller #0
[ 48.948906][ T6] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 48.959474][ T6] Workqueue: mld mld_ifc_work
[ 48.962574][ T33] FAULT_INJECTION: forcing a failure.
[ 48.962574][ T33] name failslab, interval 1, probability 10, space 0, times 81
[ 48.964524][ T6] Call Trace:
[ 48.964531][ T6]
[ 48.984792][ T6] __dump_stack+0x21/0x30
[ 48.989333][ T6] dump_stack_lvl+0x110/0x170
[ 48.994159][ T6] ? show_regs_print_info+0x20/0x20
[ 48.999992][ T6] dump_stack+0x15/0x20
[ 49.004313][ T6] should_fail+0x3ab/0x500
[ 49.009081][ T6] __should_failslab+0xa4/0xe0
[ 49.014162][ T6] should_failslab+0x9/0x20
[ 49.018748][ T6] slab_pre_alloc_hook+0x39/0xd0
[ 49.023850][ T6] ? skb_clone+0x1c7/0x370
[ 49.028757][ T6] kmem_cache_alloc+0x44/0x260
[ 49.033752][ T6] ? stack_trace_save+0xf0/0xf0
[ 49.039246][ T6] skb_clone+0x1c7/0x370
[ 49.043583][ T6] maybe_deliver+0x1ad/0x2b0
[ 49.048372][ T6] br_flood+0x2ea/0x420
[ 49.053432][ T6] br_dev_xmit+0xc57/0x1090
[ 49.058182][ T6] ? br_net_exit+0x1c0/0x1c0
[ 49.062959][ T6] ? __kmalloc_track_caller+0x169/0x2c0
[ 49.068679][ T6] ? netdev_rx_csum_fault+0x40/0x40
[ 49.074128][ T6] ? netif_skb_features+0x6d4/0xa10
[ 49.079681][ T6] dev_hard_start_xmit+0x245/0x680
[ 49.084791][ T6] __dev_queue_xmit+0x17a3/0x2d60
[ 49.089869][ T6] ? dev_queue_xmit+0x20/0x20
[ 49.094720][ T6] ? arch_stack_walk+0x108/0x140
[ 49.100009][ T6] ? __kasan_check_read+0x11/0x20
[ 49.105218][ T6] ? ip6_finish_output2+0xeb8/0x1790
[ 49.110680][ T6] dev_queue_xmit+0x17/0x20
[ 49.115329][ T6] ip6_finish_output2+0x1097/0x1790
[ 49.121079][ T6] ? __ip6_finish_output+0x7e0/0x7e0
[ 49.126594][ T6] ? ip6t_do_table+0x1355/0x1510
[ 49.131898][ T6] __ip6_finish_output+0x621/0x7e0
[ 49.137357][ T6] ip6_finish_output+0x31/0x220
[ 49.142728][ T6] ? ip6_output+0x3ea/0x410
[ 49.147240][ T6] ip6_output+0x1fa/0x410
[ 49.151737][ T6] ? ac6_seq_show+0xf0/0xf0
[ 49.156336][ T6] ? ip6_output+0x410/0x410
[ 49.160939][ T6] mld_sendpack+0x68d/0xba0
[ 49.165694][ T6] ? add_grec+0x1340/0x1340
[ 49.170213][ T6] ? add_grec+0xf70/0x1340
[ 49.174622][ T6] ? igmp6_send+0x1040/0x1040
[ 49.179393][ T6] ? wait_for_completion_killable_timeout+0x10/0x10
[ 49.186064][ T6] ? _raw_spin_unlock+0x4d/0x70
[ 49.191076][ T6] mld_ifc_work+0x7d7/0xc40
[ 49.195867][ T6] ? __schedule+0xbd7/0x14a0
[ 49.200748][ T6] process_one_work+0x6c8/0xbb0
[ 49.205788][ T6] worker_thread+0xaa0/0x1250
[ 49.210472][ T6] kthread+0x3f5/0x4f0
[ 49.214648][ T6] ? worker_clr_flags+0x190/0x190
[ 49.220044][ T6] ? kthread_blkcg+0xd0/0xd0
[ 49.224990][ T6] ret_from_fork+0x1f/0x30
[ 49.229520][ T6]
[ 49.232725][ T33] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 49.239858][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 49.250308][ T33] Workqueue: writeback wb_workfn (flush-8:0)
[ 49.257219][ T33] Call Trace:
[ 49.260774][ T33]
[ 49.263965][ T33] __dump_stack+0x21/0x30
[ 49.269177][ T33] dump_stack_lvl+0x110/0x170
[ 49.274134][ T33] ? show_regs_print_info+0x20/0x20
[ 49.279849][ T33] ? prandom_u32+0x24d/0x290
[ 49.284524][ T33] dump_stack+0x15/0x20
[ 49.288681][ T33] should_fail+0x3ab/0x500
[ 49.293278][ T33] __should_failslab+0xa4/0xe0
[ 49.298142][ T33] should_failslab+0x9/0x20
[ 49.303076][ T33] slab_pre_alloc_hook+0x39/0xd0
[ 49.308033][ T33] ? mempool_alloc_slab+0x1d/0x30
[ 49.313356][ T33] kmem_cache_alloc+0x44/0x260
[ 49.318136][ T33] ? mempool_free+0x330/0x330
[ 49.323162][ T33] mempool_alloc_slab+0x1d/0x30
[ 49.328288][ T33] mempool_alloc+0x167/0x4c0
[ 49.332974][ T33] ? virtqueue_add+0x3541/0x4210
[ 49.337907][ T33] ? mempool_resize+0x880/0x880
[ 49.342836][ T33] sg_pool_alloc+0xb0/0xe0
[ 49.347243][ T33] __sg_alloc_table+0x1c1/0x6d0
[ 49.352304][ T33] sg_alloc_table_chained+0x8b/0x1e0
[ 49.357604][ T33] ? sg_alloc_table_chained+0x1e0/0x1e0
[ 49.363160][ T33] scsi_alloc_sgtables+0x292/0x8a0
[ 49.368260][ T33] ? scsi_io_completion_action+0xce0/0xce0
[ 49.374236][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 49.380033][ T33] sd_init_command+0x60e/0x2610
[ 49.384888][ T33] scsi_queue_rq+0x176e/0x31c0
[ 49.390218][ T33] blk_mq_dispatch_rq_list+0xa06/0x1c50
[ 49.396084][ T33] ? blk_mq_get_driver_tag+0x920/0x920
[ 49.402266][ T33] blk_mq_do_dispatch_sched+0xadf/0xc90
[ 49.408249][ T33] ? blk_mq_exit_sched+0x590/0x590
[ 49.413853][ T33] __blk_mq_sched_dispatch_requests+0x32c/0x410
[ 49.421431][ T33] ? blk_mq_sched_dispatch_requests+0x1c0/0x1c0
[ 49.428052][ T33] blk_mq_sched_dispatch_requests+0x102/0x1c0
[ 49.434901][ T33] __blk_mq_run_hw_queue+0xf3/0x170
[ 49.440814][ T33] __blk_mq_delay_run_hw_queue+0x17e/0x420
[ 49.448464][ T33] ? blk_mq_delay_run_hw_queue+0x30/0x30
[ 49.454405][ T33] ? sbitmap_any_bit_set+0x119/0x160
[ 49.460544][ T33] blk_mq_run_hw_queue+0x282/0x3a0
[ 49.465846][ T33] blk_mq_sched_insert_requests+0x1cd/0x340
[ 49.472002][ T33] blk_mq_flush_plug_list+0x4e2/0x6b0
[ 49.477549][ T33] ? blk_mq_insert_requests+0x340/0x340
[ 49.483192][ T33] ? dd_prepare_request+0xd/0x40
[ 49.488385][ T33] blk_flush_plug_list+0x404/0x450
[ 49.493483][ T33] ? blk_check_plugged+0x270/0x270
[ 49.498585][ T33] ? preempt_count_add+0x90/0x1b0
[ 49.503594][ T33] ? blk_account_io_start+0x2b8/0x2f0
[ 49.509530][ T33] blk_mq_submit_bio+0xb23/0x1900
[ 49.514668][ T33] ? ktime_get+0x12f/0x160
[ 49.519186][ T33] ? blk_mq_try_issue_list_directly+0x490/0x490
[ 49.525601][ T33] ? __submit_bio+0x900/0x900
[ 49.530528][ T33] ? blk_try_enter_queue+0x165/0x350
[ 49.536064][ T33] __submit_bio+0x817/0x900
[ 49.540644][ T33] ? trace_raw_output_block_rq_remap+0x260/0x260
[ 49.547091][ T33] ? up_read+0x56/0x1d0
[ 49.551540][ T33] submit_bio_noacct+0x73b/0x800
[ 49.556810][ T33] ? __this_cpu_preempt_check+0x13/0x20
[ 49.562753][ T33] ? __mod_memcg_lruvec_state+0x122/0x1b0
[ 49.568476][ T33] ? blk_put_request+0x20/0x20
[ 49.573253][ T33] ? fscrypt_mergeable_bio+0x1c6/0x670
[ 49.579068][ T33] ? page_mapping+0x210/0x2d0
[ 49.583728][ T33] ? blkcg_set_ioprio+0x1f6/0x320
[ 49.588873][ T33] submit_bio+0x367/0x620
[ 49.593388][ T33] ? submit_bio_noacct+0x800/0x800
[ 49.599431][ T33] ? bio_add_page+0x2c2/0x460
[ 49.604648][ T33] ext4_bio_write_page+0xeff/0x1b40
[ 49.609964][ T33] mpage_submit_page+0x17d/0x220
[ 49.615066][ T33] ext4_writepages+0x19a3/0x30a0
[ 49.620003][ T33] ? ext4_readpage+0x220/0x220
[ 49.625047][ T33] ? __kasan_check_write+0x14/0x20
[ 49.630245][ T33] ? ext4_readpage+0x220/0x220
[ 49.634996][ T33] do_writepages+0x476/0x6d0
[ 49.639596][ T33] ? __writepage+0x130/0x130
[ 49.644310][ T33] ? __kasan_check_write+0x14/0x20
[ 49.649453][ T33] ? _raw_spin_lock+0x94/0xf0
[ 49.654402][ T33] __writeback_single_inode+0xd9/0x9e0
[ 49.660202][ T33] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 49.666368][ T33] writeback_sb_inodes+0x9f3/0x1610
[ 49.671818][ T33] ? queue_io+0x4b0/0x4b0
[ 49.676245][ T33] ? down_read_trylock+0x317/0x630
[ 49.681449][ T33] __writeback_inodes_wb+0x127/0x400
[ 49.687097][ T33] writeback_inodes_wb+0x19d/0x240
[ 49.692427][ T33] ? trace_writeback_pages_written+0xf0/0xf0
[ 49.698472][ T33] ? kvm_sched_clock_read+0x18/0x40
[ 49.703672][ T33] ? kthread_data+0x50/0xc0
[ 49.708392][ T33] wb_workfn+0xea3/0xf30
[ 49.712713][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 49.718525][ T33] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 49.724849][ T33] ? inode_wait_for_writeback+0x220/0x220
[ 49.730906][ T33] ? __kasan_check_write+0x14/0x20
[ 49.736195][ T33] ? _raw_spin_lock+0x94/0xf0
[ 49.741206][ T33] ? _raw_spin_trylock_bh+0x150/0x150
[ 49.746580][ T33] ? _raw_spin_unlock+0x4d/0x70
[ 49.751529][ T33] process_one_work+0x6c8/0xbb0
[ 49.756576][ T33] rescuer_thread+0x73d/0xf80
[ 49.761274][ T33] ? rcu_free_pwq+0x30/0x30
[ 49.765868][ T33] ? __kasan_check_read+0x11/0x20
[ 49.770880][ T33] ? __kthread_parkme+0xab/0x1f0
[ 49.775889][ T33] kthread+0x3f5/0x4f0
[ 49.779945][ T33] ? rcu_free_pwq+0x30/0x30
[ 49.784617][ T33] ? kthread_blkcg+0xd0/0xd0
[ 49.789231][ T33] ret_from_fork+0x1f/0x30
[ 49.793644][ T33]
[ 49.797006][ T33] FAULT_INJECTION: forcing a failure.
[ 49.797006][ T33] name failslab, interval 1, probability 10, space 0, times 79
[ 49.797621][ T473] FAULT_INJECTION: forcing a failure.
[ 49.797621][ T473] name failslab, interval 1, probability 10, space 0, times 79
[ 49.811338][ T39] CPU: 1 PID: 39 Comm: kworker/1:1 Not tainted syzkaller #0
[ 49.832661][ T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 49.842926][ T39] Workqueue: mld mld_ifc_work
[ 49.847789][ T39] Call Trace:
[ 49.851160][ T39]
[ 49.854276][ T39] __dump_stack+0x21/0x30
[ 49.858598][ T39] dump_stack_lvl+0x110/0x170
[ 49.863353][ T39] ? show_regs_print_info+0x20/0x20
[ 49.868821][ T39] dump_stack+0x15/0x20
[ 49.872987][ T39] should_fail+0x3ab/0x500
[ 49.877927][ T39] __should_failslab+0xa4/0xe0
[ 49.882705][ T39] should_failslab+0x9/0x20
[ 49.887203][ T39] slab_pre_alloc_hook+0x39/0xd0
[ 49.892406][ T39] ? __alloc_skb+0xe4/0x730
[ 49.896924][ T39] kmem_cache_alloc+0x44/0x260
[ 49.901799][ T39] __alloc_skb+0xe4/0x730
[ 49.906316][ T39] mld_newpack+0x143/0x9e0
[ 49.910732][ T39] ? mld_sendpack+0xba0/0xba0
[ 49.915402][ T39] ? _raw_spin_lock_irq+0x95/0xf0
[ 49.920515][ T39] ? _raw_spin_lock_irqsave+0x130/0x130
[ 49.926074][ T39] add_grec+0xee8/0x1340
[ 49.930532][ T39] ? wait_for_completion_killable_timeout+0x10/0x10
[ 49.937299][ T39] mld_ifc_work+0x728/0xc40
[ 49.942512][ T39] ? _raw_spin_lock_irqsave+0x130/0x130
[ 49.948140][ T39] process_one_work+0x6c8/0xbb0
[ 49.952995][ T39] worker_thread+0xaa0/0x1250
[ 49.958041][ T39] ? __kasan_check_read+0x11/0x20
[ 49.963307][ T39] kthread+0x3f5/0x4f0
[ 49.967394][ T39] ? worker_clr_flags+0x190/0x190
[ 49.972500][ T39] ? kthread_blkcg+0xd0/0xd0
[ 49.977090][ T39] ret_from_fork+0x1f/0x30
[ 49.981815][ T39]
[ 49.985055][ T473] CPU: 0 PID: 473 Comm: syz-executor Not tainted syzkaller #0
[ 49.992795][ T473] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 50.003401][ T473] Call Trace:
[ 50.006732][ T473]
[ 50.009664][ T473] __dump_stack+0x21/0x30
[ 50.013989][ T473] dump_stack_lvl+0x110/0x170
[ 50.018800][ T473] ? show_regs_print_info+0x20/0x20
[ 50.024154][ T473] ? prandom_u32+0x24d/0x290
[ 50.029094][ T473] dump_stack+0x15/0x20
[ 50.033414][ T473] should_fail+0x3ab/0x500
[ 50.038098][ T473] ? inet6_rt_notify+0x293/0x480
[ 50.043228][ T473] __should_failslab+0xa4/0xe0
[ 50.048200][ T473] should_failslab+0x9/0x20
[ 50.053169][ T473] slab_pre_alloc_hook+0x39/0xd0
[ 50.058141][ T473] ? inet6_rt_notify+0x293/0x480
[ 50.063073][ T473] ? inet6_rt_notify+0x293/0x480
[ 50.068098][ T473] __kmalloc_track_caller+0x6c/0x2c0
[ 50.073404][ T473] ? inet6_rt_notify+0x293/0x480
[ 50.078362][ T473] ? inet6_rt_notify+0x293/0x480
[ 50.083322][ T473] __alloc_skb+0x210/0x730
[ 50.087825][ T473] inet6_rt_notify+0x293/0x480
[ 50.092591][ T473] ? rt6_nh_dump_exceptions+0x6b0/0x6b0
[ 50.098251][ T473] ? call_fib_notifiers+0xa0/0xc0
[ 50.103743][ T473] fib6_del+0xb9e/0xf00
[ 50.107991][ T473] ? fib6_locate+0x520/0x520
[ 50.112580][ T473] ? fib6_ifdown+0x2e8/0x4e0
[ 50.117383][ T473] fib6_clean_node+0x2a1/0x540
[ 50.122423][ T473] ? node_free_rcu+0x30/0x30
[ 50.127277][ T473] fib6_walk_continue+0x54b/0x740
[ 50.132397][ T473] fib6_walk+0x153/0x290
[ 50.136733][ T473] fib6_clean_all+0x1a1/0x270
[ 50.141599][ T473] ? rt6_sync_down_dev+0x140/0x140
[ 50.147958][ T473] ? fib6_del+0xf00/0xf00
[ 50.153332][ T473] ? node_free_rcu+0x30/0x30
[ 50.158635][ T473] ? rt6_sync_down_dev+0x140/0x140
[ 50.165688][ T473] ? __kasan_check_write+0x14/0x20
[ 50.171398][ T473] rt6_disable_ip+0x115/0x730
[ 50.176644][ T473] ? __queue_work+0x903/0xc60
[ 50.181592][ T473] ? fib6_ifdown+0x4e0/0x4e0
[ 50.187467][ T473] ? __kasan_check_read+0x11/0x20
[ 50.193490][ T473] addrconf_ifdown+0x144/0x1910
[ 50.198568][ T473] ? nf_nat_masq_schedule+0x22d/0x4d0
[ 50.204204][ T473] ? addrconf_cleanup+0x1c0/0x1c0
[ 50.209440][ T473] ? __kasan_check_write+0x14/0x20
[ 50.214768][ T473] ? mutex_unlock+0x8f/0x230
[ 50.219901][ T473] ? __mutex_lock_slowpath+0x10/0x10
[ 50.225304][ T473] ? nf_nat_masq_schedule+0x4d0/0x4d0
[ 50.232388][ T473] ? masq_device_event+0xd0/0xd0
[ 50.238090][ T473] addrconf_notify+0x3bd/0xe00
[ 50.243543][ T473] raw_notifier_call_chain+0x90/0x100
[ 50.250351][ T473] dev_close_many+0x325/0x4d0
[ 50.255612][ T473] ? __dev_open+0x500/0x500
[ 50.261996][ T473] ? __kasan_check_read+0x11/0x20
[ 50.269596][ T473] unregister_netdevice_many+0x477/0x1a00
[ 50.276034][ T473] ? __queue_work+0x903/0xc60
[ 50.280868][ T473] ? alloc_netdev_mqs+0xe20/0xe20
[ 50.287434][ T473] ? __queue_delayed_work+0x188/0x200
[ 50.293180][ T473] ? __kasan_check_read+0x11/0x20
[ 50.298394][ T473] unregister_netdevice_queue+0x2e1/0x320
[ 50.304475][ T473] ? __kasan_check_read+0x11/0x20
[ 50.309596][ T473] ? linkwatch_urgent_event+0x34d/0x460
[ 50.315633][ T473] ? list_netdevice+0x4c0/0x4c0
[ 50.320858][ T473] __tun_detach+0xc9d/0x1450
[ 50.325812][ T473] tun_chr_close+0x92/0x140
[ 50.330760][ T473] ? tun_chr_open+0x540/0x540
[ 50.335635][ T473] __fput+0x22b/0x900
[ 50.340356][ T473] ____fput+0x15/0x20
[ 50.344478][ T473] task_work_run+0x127/0x190
[ 50.349246][ T473] do_exit+0xb70/0x29a0
[ 50.353421][ T473] ? put_task_struct+0x90/0x90
[ 50.358281][ T473] ? __fdget_pos+0x1f7/0x380
[ 50.362883][ T473] ? ksys_write+0x1eb/0x260
[ 50.367578][ T473] ? __ia32_sys_read+0x90/0x90
[ 50.372622][ T473] do_group_exit+0x149/0x310
[ 50.377233][ T473] __x64_sys_exit_group+0x3f/0x40
[ 50.382529][ T473] x64_sys_call+0x832/0x9a0
[ 50.388567][ T473] do_syscall_64+0x4c/0xa0
[ 50.393526][ T473] ? clear_bhb_loop+0x50/0xa0
[ 50.398744][ T473] ? clear_bhb_loop+0x50/0xa0
[ 50.403888][ T473] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 50.410005][ T473] RIP: 0033:0x7f51ec7b9e99
[ 50.414857][ T473] Code: Unable to access opcode bytes at RIP 0x7f51ec7b9e6f.
[ 50.422765][ T473] RSP: 002b:00007ffdc30eec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 50.434750][ T473] RAX: ffffffffffffffda RBX: 00007f51ec84f316 RCX: 00007f51ec7b9e99
[ 50.445165][ T473] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
[ 50.455908][ T473] RBP: 000000000000000c R08: 0000000000000000 R09: 00007f51ec84f30a
[ 50.471391][ T473] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdc30efed0
[ 50.482113][ T473] R13: 00007f51ec84f30a R14: 0000000000009898 R15: 00007ffdc30eff10
[ 50.492710][ T473]
[ 50.496385][ T33] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 50.504832][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 50.515837][ T33] Workqueue: writeback wb_workfn (flush-8:0)
[ 50.522195][ T33] Call Trace:
[ 50.525939][ T33]
[ 50.529332][ T33] __dump_stack+0x21/0x30
[ 50.534712][ T33] dump_stack_lvl+0x110/0x170
[ 50.540692][ T33] ? show_regs_print_info+0x20/0x20
[ 50.547252][ T33] ? prandom_u32+0x24d/0x290
[ 50.553521][ T33] dump_stack+0x15/0x20
[ 50.557999][ T33] should_fail+0x3ab/0x500
[ 50.562946][ T33] __should_failslab+0xa4/0xe0
[ 50.568378][ T33] should_failslab+0x9/0x20
[ 50.575287][ T33] slab_pre_alloc_hook+0x39/0xd0
[ 50.580593][ T33] ? mempool_alloc_slab+0x1d/0x30
[ 50.586673][ T33] kmem_cache_alloc+0x44/0x260
[ 50.591696][ T33] ? mempool_free+0x330/0x330
[ 50.596705][ T33] mempool_alloc_slab+0x1d/0x30
[ 50.601754][ T33] mempool_alloc+0x167/0x4c0
[ 50.606789][ T33] ? blk_mq_delay_run_hw_queue+0x30/0x30
[ 50.613745][ T33] ? mempool_resize+0x880/0x880
[ 50.619566][ T33] ? blk_mq_sched_insert_requests+0x216/0x340
[ 50.625833][ T33] bio_alloc_bioset+0x124/0x910
[ 50.631349][ T33] bio_split+0xb4/0x310
[ 50.636158][ T33] __blk_queue_split+0xf6f/0x15c0
[ 50.641310][ T33] ? blk_end_sync_rq+0x50/0x50
[ 50.646180][ T33] ? preempt_count_add+0x90/0x1b0
[ 50.651654][ T33] blk_mq_submit_bio+0x1cc/0x1900
[ 50.656763][ T33] ? ktime_get+0x12f/0x160
[ 50.661185][ T33] ? submit_bio_checks+0xb77/0x11e0
[ 50.666401][ T33] ? blk_mq_try_issue_list_directly+0x490/0x490
[ 50.672653][ T33] ? __submit_bio+0x900/0x900
[ 50.677590][ T33] ? blk_try_enter_queue+0x165/0x350
[ 50.682898][ T33] __submit_bio+0x817/0x900
[ 50.687662][ T33] ? trace_raw_output_block_rq_remap+0x260/0x260
[ 50.694092][ T33] ? up_read+0x56/0x1d0
[ 50.698260][ T33] submit_bio_noacct+0x73b/0x800
[ 50.703228][ T33] ? __this_cpu_preempt_check+0x13/0x20
[ 50.709126][ T33] ? __mod_memcg_lruvec_state+0x122/0x1b0
[ 50.715128][ T33] ? blk_put_request+0x20/0x20
[ 50.720085][ T33] ? fscrypt_mergeable_bio+0x1c6/0x670
[ 50.725551][ T33] ? page_mapping+0x210/0x2d0
[ 50.730236][ T33] ? blkcg_set_ioprio+0x1f6/0x320
[ 50.735554][ T33] submit_bio+0x367/0x620
[ 50.740848][ T33] ? submit_bio_noacct+0x800/0x800
[ 50.746506][ T33] ? bio_add_page+0x2c2/0x460
[ 50.751260][ T33] ext4_bio_write_page+0xeff/0x1b40
[ 50.756549][ T33] mpage_submit_page+0x17d/0x220
[ 50.761666][ T33] ext4_writepages+0x19a3/0x30a0
[ 50.767228][ T33] ? ext4_readpage+0x220/0x220
[ 50.772211][ T33] ? __kasan_check_write+0x14/0x20
[ 50.777321][ T33] ? ext4_readpage+0x220/0x220
[ 50.782182][ T33] do_writepages+0x476/0x6d0
[ 50.786788][ T33] ? __writepage+0x130/0x130
[ 50.792326][ T33] ? __kasan_check_write+0x14/0x20
[ 50.797816][ T33] ? _raw_spin_lock+0x94/0xf0
[ 50.802795][ T33] __writeback_single_inode+0xd9/0x9e0
[ 50.808710][ T33] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 50.814712][ T33] writeback_sb_inodes+0x9f3/0x1610
[ 50.819931][ T33] ? queue_io+0x4b0/0x4b0
[ 50.824599][ T33] ? down_read_trylock+0x317/0x630
[ 50.829937][ T33] __writeback_inodes_wb+0x127/0x400
[ 50.835512][ T33] writeback_inodes_wb+0x19d/0x240
[ 50.840637][ T33] ? trace_writeback_pages_written+0xf0/0xf0
[ 50.846986][ T33] ? kvm_sched_clock_read+0x18/0x40
[ 50.852433][ T33] ? kthread_data+0x50/0xc0
[ 50.857333][ T33] wb_workfn+0xea3/0xf30
[ 50.862037][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 50.868363][ T33] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 50.875161][ T33] ? inode_wait_for_writeback+0x220/0x220
[ 50.880892][ T33] ? __kasan_check_write+0x14/0x20
[ 50.886108][ T33] ? _raw_spin_lock+0x94/0xf0
[ 50.891229][ T33] ? _raw_spin_trylock_bh+0x150/0x150
[ 50.897407][ T33] ? _raw_spin_unlock+0x4d/0x70
[ 50.902354][ T33] process_one_work+0x6c8/0xbb0
[ 50.907324][ T33] rescuer_thread+0x73d/0xf80
[ 50.912016][ T33] ? rcu_free_pwq+0x30/0x30
[ 50.916730][ T33] ? __kasan_check_read+0x11/0x20
[ 50.922717][ T33] ? __kthread_parkme+0xab/0x1f0
[ 50.928322][ T33] kthread+0x3f5/0x4f0
[ 50.932459][ T33] ? rcu_free_pwq+0x30/0x30
[ 50.938238][ T33] ? kthread_blkcg+0xd0/0xd0
[ 50.943920][ T33] ret_from_fork+0x1f/0x30
[ 50.948435][ T33]
[ 50.951543][ T90] CPU: 0 PID: 90 Comm: klogd Not tainted syzkaller #0
[ 50.951664][ T33] FAULT_INJECTION: forcing a failure.
[ 50.951664][ T33] name failslab, interval 1, probability 10, space 0, times 76
[ 50.958702][ T90] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 50.982928][ T90] Call Trace:
[ 50.986555][ T90]
[ 50.989713][ T90] __dump_stack+0x21/0x30
[ 50.994249][ T90] dump_stack_lvl+0x110/0x170
[ 50.999182][ T90] ? show_regs_print_info+0x20/0x20
[ 51.004878][ T90] ? prandom_u32+0x24d/0x290
[ 51.010123][ T90] dump_stack+0x15/0x20
[ 51.014912][ T90] should_fail+0x3ab/0x500
[ 51.019612][ T90] __should_failslab+0xa4/0xe0
[ 51.024564][ T90] should_failslab+0x9/0x20
[ 51.030200][ T90] slab_pre_alloc_hook+0x39/0xd0
[ 51.035296][ T90] ? security_file_alloc+0x33/0x120
[ 51.040985][ T90] kmem_cache_alloc+0x44/0x260
[ 51.047484][ T90] security_file_alloc+0x33/0x120
[ 51.054337][ T90] __alloc_file+0xb5/0x2a0
[ 51.063075][ T90] alloc_empty_file+0x97/0x180
[ 51.069346][ T90] alloc_file+0x59/0x580
[ 51.074523][ T90] alloc_file_pseudo+0x180/0x200
[ 51.080672][ T90] ? alloc_empty_file_noaccount+0x80/0x80
[ 51.088697][ T90] sock_alloc_file+0xba/0x260
[ 51.097062][ T90] __sys_socket+0x12b/0x190
[ 51.103080][ T90] __x64_sys_socket+0x7a/0x90
[ 51.108713][ T90] x64_sys_call+0x8c5/0x9a0
[ 51.113781][ T90] do_syscall_64+0x4c/0xa0
[ 51.118542][ T90] ? clear_bhb_loop+0x50/0xa0
[ 51.123333][ T90] ? clear_bhb_loop+0x50/0xa0
[ 51.128186][ T90] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 51.134734][ T90] RIP: 0033:0x7fe49a67c707
[ 51.139158][ T90] Code: 54 24 0c e8 6b ac ff ff 83 f8 ff 74 04 8b 44 24 0c 48 83 c4 18 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c1 e6 0c 00 f7 d8 64 89 01 48
[ 51.162693][ T90] RSP: 002b:00007ffcdc441578 EFLAGS: 00000202 ORIG_RAX: 0000000000000029
[ 51.172772][ T90] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe49a67c707
[ 51.182819][ T90] RDX: 0000000000000000 RSI: 0000000000080002 RDI: 0000000000000001
[ 51.191323][ T90] RBP: 00007fe49a708560 R08: 0000000000000073 R09: 0000000000000001
[ 51.199388][ T90] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002
[ 51.207565][ T90] R13: 00007ffcdc4416a0 R14: 0000000000000052 R15: 00007ffcdc4416a0
[ 51.216172][ T90]
[ 51.219409][ T33] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 51.219617][ T473] FAULT_INJECTION: forcing a failure.
[ 51.219617][ T473] name failslab, interval 1, probability 10, space 0, times 76
[ 51.226719][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 51.226737][ T33] Workqueue: writeback wb_workfn (flush-8:0)
[ 51.258129][ T33] Call Trace:
[ 51.261412][ T33]
[ 51.264434][ T33] __dump_stack+0x21/0x30
[ 51.269024][ T33] dump_stack_lvl+0x110/0x170
[ 51.274153][ T33] ? show_regs_print_info+0x20/0x20
[ 51.280359][ T33] ? prandom_u32+0x24d/0x290
[ 51.284953][ T33] dump_stack+0x15/0x20
[ 51.289221][ T33] should_fail+0x3ab/0x500
[ 51.294192][ T33] __should_failslab+0xa4/0xe0
[ 51.299237][ T33] should_failslab+0x9/0x20
[ 51.303867][ T33] slab_pre_alloc_hook+0x39/0xd0
[ 51.309663][ T33] ? mempool_alloc_slab+0x1d/0x30
[ 51.315080][ T33] kmem_cache_alloc+0x44/0x260
[ 51.319868][ T33] ? mempool_free+0x330/0x330
[ 51.324796][ T33] mempool_alloc_slab+0x1d/0x30
[ 51.330402][ T33] mempool_alloc+0x167/0x4c0
[ 51.335824][ T33] ? mempool_resize+0x880/0x880
[ 51.341119][ T33] ? prb_read_valid+0x60/0x60
[ 51.345989][ T33] sg_pool_alloc+0xb0/0xe0
[ 51.351819][ T33] __sg_alloc_table+0x1c1/0x6d0
[ 51.357298][ T33] sg_alloc_table_chained+0x8b/0x1e0
[ 51.362925][ T33] ? sg_alloc_table_chained+0x1e0/0x1e0
[ 51.369143][ T33] scsi_alloc_sgtables+0x292/0x8a0
[ 51.374420][ T33] ? scsi_io_completion_action+0xce0/0xce0
[ 51.380405][ T33] sd_init_command+0x60e/0x2610
[ 51.385371][ T33] scsi_queue_rq+0x176e/0x31c0
[ 51.391076][ T33] blk_mq_dispatch_rq_list+0xa06/0x1c50
[ 51.396733][ T33] ? blk_mq_get_driver_tag+0x920/0x920
[ 51.402290][ T33] blk_mq_do_dispatch_sched+0xadf/0xc90
[ 51.408111][ T33] ? blk_mq_exit_sched+0x590/0x590
[ 51.414301][ T33] ? dump_stack_lvl+0x144/0x170
[ 51.419943][ T33] ? show_regs_print_info+0x20/0x20
[ 51.427170][ T33] ? prandom_u32+0x24d/0x290
[ 51.433577][ T33] __blk_mq_sched_dispatch_requests+0x32c/0x410
[ 51.442345][ T33] ? __kasan_check_write+0x14/0x20
[ 51.448237][ T33] ? blk_mq_sched_dispatch_requests+0x1c0/0x1c0
[ 51.457308][ T33] blk_mq_sched_dispatch_requests+0x102/0x1c0
[ 51.466218][ T33] __blk_mq_run_hw_queue+0xf3/0x170
[ 51.473045][ T33] __blk_mq_delay_run_hw_queue+0x17e/0x420
[ 51.480197][ T33] ? blk_mq_delay_run_hw_queue+0x30/0x30
[ 51.485952][ T33] ? sbitmap_any_bit_set+0x119/0x160
[ 51.491231][ T33] blk_mq_run_hw_queue+0x282/0x3a0
[ 51.497202][ T33] blk_mq_sched_insert_requests+0x1cd/0x340
[ 51.503150][ T33] blk_mq_flush_plug_list+0x4e2/0x6b0
[ 51.509226][ T33] ? blk_mq_insert_requests+0x340/0x340
[ 51.514768][ T33] ? dd_prepare_request+0xd/0x40
[ 51.519874][ T33] blk_flush_plug_list+0x404/0x450
[ 51.525343][ T33] ? blk_check_plugged+0x270/0x270
[ 51.531381][ T33] ? blk_account_io_start+0x2b8/0x2f0
[ 51.537362][ T33] blk_mq_submit_bio+0xb23/0x1900
[ 51.543315][ T33] ? ktime_get+0x12f/0x160
[ 51.551157][ T33] ? blk_mq_try_issue_list_directly+0x490/0x490
[ 51.557413][ T33] ? __submit_bio+0x900/0x900
[ 51.562543][ T33] ? blk_try_enter_queue+0x165/0x350
[ 51.569496][ T33] __submit_bio+0x817/0x900
[ 51.574497][ T33] ? trace_raw_output_block_rq_remap+0x260/0x260
[ 51.581106][ T33] ? up_read+0x56/0x1d0
[ 51.585545][ T33] submit_bio_noacct+0x73b/0x800
[ 51.590846][ T33] ? __this_cpu_preempt_check+0x13/0x20
[ 51.596775][ T33] ? __mod_memcg_lruvec_state+0x122/0x1b0
[ 51.603416][ T33] ? blk_put_request+0x20/0x20
[ 51.608536][ T33] ? fscrypt_mergeable_bio+0x1c6/0x670
[ 51.614484][ T33] ? page_mapping+0x210/0x2d0
[ 51.619435][ T33] ? blkcg_set_ioprio+0x1f6/0x320
[ 51.624562][ T33] submit_bio+0x367/0x620
[ 51.629110][ T33] ? submit_bio_noacct+0x800/0x800
[ 51.634396][ T33] ? bio_add_page+0x2c2/0x460
[ 51.639253][ T33] ext4_bio_write_page+0xeff/0x1b40
[ 51.644482][ T33] mpage_submit_page+0x17d/0x220
[ 51.649635][ T33] ext4_writepages+0x19a3/0x30a0
[ 51.654675][ T33] ? ext4_readpage+0x220/0x220
[ 51.660192][ T33] ? __kasan_check_write+0x14/0x20
[ 51.665367][ T33] ? ext4_readpage+0x220/0x220
[ 51.670233][ T33] do_writepages+0x476/0x6d0
[ 51.675279][ T33] ? __writepage+0x130/0x130
[ 51.680058][ T33] ? __kasan_check_write+0x14/0x20
[ 51.685330][ T33] ? _raw_spin_lock+0x94/0xf0
[ 51.690477][ T33] __writeback_single_inode+0xd9/0x9e0
[ 51.696106][ T33] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 51.702821][ T33] writeback_sb_inodes+0x9f3/0x1610
[ 51.708421][ T33] ? queue_io+0x4b0/0x4b0
[ 51.712860][ T33] ? down_read_trylock+0x317/0x630
[ 51.718074][ T33] __writeback_inodes_wb+0x127/0x400
[ 51.723372][ T33] writeback_inodes_wb+0x19d/0x240
[ 51.728574][ T33] ? trace_writeback_pages_written+0xf0/0xf0
[ 51.734550][ T33] ? kvm_sched_clock_read+0x18/0x40
[ 51.740414][ T33] ? kthread_data+0x50/0xc0
[ 51.744985][ T33] wb_workfn+0xea3/0xf30
[ 51.749458][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 51.755642][ T33] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 51.762179][ T33] ? inode_wait_for_writeback+0x220/0x220
[ 51.768219][ T33] ? __kasan_check_write+0x14/0x20
[ 51.773433][ T33] ? _raw_spin_lock+0x94/0xf0
[ 51.778567][ T33] ? _raw_spin_trylock_bh+0x150/0x150
[ 51.784259][ T33] ? _raw_spin_unlock+0x4d/0x70
[ 51.789984][ T33] process_one_work+0x6c8/0xbb0
[ 51.795783][ T33] rescuer_thread+0x73d/0xf80
[ 51.800914][ T33] ? rcu_free_pwq+0x30/0x30
[ 51.805426][ T33] ? __kasan_check_read+0x11/0x20
[ 51.810465][ T33] ? __kthread_parkme+0xab/0x1f0
[ 51.815697][ T33] kthread+0x3f5/0x4f0
[ 51.819777][ T33] ? rcu_free_pwq+0x30/0x30
[ 51.824456][ T33] ? kthread_blkcg+0xd0/0xd0
[ 51.829051][ T33] ret_from_fork+0x1f/0x30
[ 51.833779][ T33]
[ 51.836801][ T473] CPU: 0 PID: 473 Comm: syz-executor Not tainted syzkaller #0
[ 51.837227][ T33] FAULT_INJECTION: forcing a failure.
[ 51.837227][ T33] name failslab, interval 1, probability 10, space 0, times 75
[ 51.844264][ T473] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 51.844278][ T473] Call Trace:
[ 51.844282][ T473]
[ 51.844289][ T473] __dump_stack+0x21/0x30
[ 51.879117][ T473] dump_stack_lvl+0x110/0x170
[ 51.883798][ T473] ? show_regs_print_info+0x20/0x20
[ 51.888988][ T473] dump_stack+0x15/0x20
[ 51.893812][ T473] should_fail+0x3ab/0x500
[ 51.898424][ T473] __should_failslab+0xa4/0xe0
[ 51.903368][ T473] should_failslab+0x9/0x20
[ 51.907975][ T473] slab_pre_alloc_hook+0x39/0xd0
[ 51.912908][ T473] ? __alloc_skb+0xe4/0x730
[ 51.917603][ T473] kmem_cache_alloc+0x44/0x260
[ 51.922456][ T473] ? fib6_nh_flush_exceptions+0x46a/0x480
[ 51.928536][ T473] __alloc_skb+0xe4/0x730
[ 51.932858][ T473] inet6_rt_notify+0x293/0x480
[ 51.938158][ T473] ? rt6_nh_dump_exceptions+0x6b0/0x6b0
[ 51.943882][ T473] ? call_fib_notifiers+0xa0/0xc0
[ 51.949447][ T473] fib6_del+0xb9e/0xf00
[ 51.953646][ T473] ? fib6_locate+0x520/0x520
[ 51.958270][ T473] ? _raw_spin_unlock+0x4d/0x70
[ 51.963221][ T473] ? fib6_ifdown+0x2e8/0x4e0
[ 51.968361][ T473] fib6_clean_node+0x2a1/0x540
[ 51.973159][ T473] ? node_free_rcu+0x30/0x30
[ 51.978042][ T473] ? __kasan_check_read+0x11/0x20
[ 51.983345][ T473] fib6_walk_continue+0x54b/0x740
[ 51.988375][ T473] fib6_walk+0x153/0x290
[ 51.992618][ T473] fib6_clean_all+0x1a1/0x270
[ 51.997394][ T473] ? rt6_sync_down_dev+0x140/0x140
[ 52.002557][ T473] ? fib6_del+0xf00/0xf00
[ 52.007087][ T473] ? node_free_rcu+0x30/0x30
[ 52.011793][ T473] ? rt6_sync_down_dev+0x140/0x140
[ 52.017350][ T473] ? __kasan_check_write+0x14/0x20
[ 52.022562][ T473] rt6_disable_ip+0x115/0x730
[ 52.027337][ T473] ? __queue_work+0x903/0xc60
[ 52.032207][ T473] ? fib6_ifdown+0x4e0/0x4e0
[ 52.036890][ T473] ? __kasan_check_read+0x11/0x20
[ 52.042011][ T473] addrconf_ifdown+0x144/0x1910
[ 52.049378][ T473] ? nf_nat_masq_schedule+0x22d/0x4d0
[ 52.057463][ T473] ? addrconf_cleanup+0x1c0/0x1c0
[ 52.062939][ T473] ? __kasan_check_write+0x14/0x20
[ 52.068362][ T473] ? mutex_unlock+0x8f/0x230
[ 52.073162][ T473] ? __mutex_lock_slowpath+0x10/0x10
[ 52.078561][ T473] ? nf_nat_masq_schedule+0x4d0/0x4d0
[ 52.084062][ T473] ? masq_device_event+0xd0/0xd0
[ 52.089101][ T473] addrconf_notify+0x3bd/0xe00
[ 52.094040][ T473] raw_notifier_call_chain+0x90/0x100
[ 52.099547][ T473] dev_close_many+0x325/0x4d0
[ 52.104584][ T473] ? __dev_open+0x500/0x500
[ 52.109079][ T473] ? __kasan_check_read+0x11/0x20
[ 52.114589][ T473] unregister_netdevice_many+0x477/0x1a00
[ 52.120838][ T473] ? __queue_work+0x903/0xc60
[ 52.125704][ T473] ? alloc_netdev_mqs+0xe20/0xe20
[ 52.130815][ T473] ? __queue_delayed_work+0x188/0x200
[ 52.137025][ T473] ? __kasan_check_read+0x11/0x20
[ 52.142349][ T473] unregister_netdevice_queue+0x2e1/0x320
[ 52.148112][ T473] ? __kasan_check_read+0x11/0x20
[ 52.153692][ T473] ? linkwatch_urgent_event+0x34d/0x460
[ 52.159717][ T473] ? list_netdevice+0x4c0/0x4c0
[ 52.164936][ T473] __tun_detach+0xc9d/0x1450
[ 52.169853][ T473] tun_chr_close+0x92/0x140
[ 52.174385][ T473] ? tun_chr_open+0x540/0x540
[ 52.179508][ T473] __fput+0x22b/0x900
[ 52.183766][ T473] ____fput+0x15/0x20
[ 52.187783][ T473] task_work_run+0x127/0x190
[ 52.192362][ T473] do_exit+0xb70/0x29a0
[ 52.196520][ T473] ? put_task_struct+0x90/0x90
[ 52.201270][ T473] ? __fdget_pos+0x1f7/0x380
[ 52.206129][ T473] ? ksys_write+0x1eb/0x260
[ 52.211170][ T473] ? __ia32_sys_read+0x90/0x90
[ 52.216992][ T473] do_group_exit+0x149/0x310
[ 52.222033][ T473] __x64_sys_exit_group+0x3f/0x40
[ 52.227274][ T473] x64_sys_call+0x832/0x9a0
[ 52.232133][ T473] do_syscall_64+0x4c/0xa0
[ 52.236764][ T473] ? clear_bhb_loop+0x50/0xa0
[ 52.241709][ T473] ? clear_bhb_loop+0x50/0xa0
[ 52.247378][ T473] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 52.253440][ T473] RIP: 0033:0x7f51ec7b9e99
[ 52.258055][ T473] Code: Unable to access opcode bytes at RIP 0x7f51ec7b9e6f.
[ 52.265615][ T473] RSP: 002b:00007ffdc30eec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 52.275017][ T473] RAX: ffffffffffffffda RBX: 00007f51ec84f316 RCX: 00007f51ec7b9e99
[ 52.283196][ T473] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
[ 52.293007][ T473] RBP: 000000000000000c R08: 0000000000000000 R09: 00007f51ec84f30a
[ 52.302938][ T473] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdc30efed0
[ 52.312983][ T473] R13: 00007f51ec84f30a R14: 0000000000009898 R15: 00007ffdc30eff10
[ 52.321316][ T473]
[ 52.324444][ T33] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 52.324568][ C0] FAULT_INJECTION: forcing a failure.
[ 52.324568][ C0] name failslab, interval 1, probability 10, space 0, times 74
[ 52.332784][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 52.332803][ T33] Workqueue: writeback wb_workfn (flush-8:0)
[ 52.332831][ T33] Call Trace:
[ 52.368879][ T33]
[ 52.371894][ T33] __dump_stack+0x21/0x30
[ 52.377184][ T33] dump_stack_lvl+0x110/0x170
[ 52.381963][ T33] ? show_regs_print_info+0x20/0x20
[ 52.387279][ T33] ? prandom_u32+0x24d/0x290
[ 52.392714][ T33] dump_stack+0x15/0x20
[ 52.396871][ T33] should_fail+0x3ab/0x500
[ 52.401458][ T33] __should_failslab+0xa4/0xe0
[ 52.406215][ T33] should_failslab+0x9/0x20
[ 52.410795][ T33] slab_pre_alloc_hook+0x39/0xd0
[ 52.415946][ T33] ? mempool_alloc_slab+0x1d/0x30
[ 52.421316][ T33] kmem_cache_alloc+0x44/0x260
[ 52.426097][ T33] ? mempool_free+0x330/0x330
[ 52.431210][ T33] mempool_alloc_slab+0x1d/0x30
[ 52.437198][ T33] mempool_alloc+0x167/0x4c0
[ 52.442511][ T33] ? blk_put_request+0x20/0x20
[ 52.449421][ T33] ? fscrypt_mergeable_bio+0x1c6/0x670
[ 52.455700][ T33] ? mempool_resize+0x880/0x880
[ 52.461709][ T33] ? submit_bio+0x367/0x620
[ 52.466869][ T33] bio_alloc_bioset+0x22b/0x910
[ 52.472591][ T33] ext4_bio_write_page+0xf3b/0x1b40
[ 52.478105][ T33] mpage_submit_page+0x17d/0x220
[ 52.483217][ T33] ext4_writepages+0x19a3/0x30a0
[ 52.488242][ T33] ? ext4_readpage+0x220/0x220
[ 52.493001][ T33] ? __kasan_check_write+0x14/0x20
[ 52.498688][ T33] ? ext4_readpage+0x220/0x220
[ 52.503680][ T33] do_writepages+0x476/0x6d0
[ 52.508283][ T33] ? __writepage+0x130/0x130
[ 52.513048][ T33] ? __kasan_check_write+0x14/0x20
[ 52.518556][ T33] ? _raw_spin_lock+0x94/0xf0
[ 52.523265][ T33] __writeback_single_inode+0xd9/0x9e0
[ 52.529084][ T33] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 52.535060][ T33] writeback_sb_inodes+0x9f3/0x1610
[ 52.541873][ T33] ? queue_io+0x4b0/0x4b0
[ 52.547550][ T33] ? down_read_trylock+0x317/0x630
[ 52.553307][ T33] __writeback_inodes_wb+0x127/0x400
[ 52.559868][ T33] writeback_inodes_wb+0x19d/0x240
[ 52.565338][ T33] ? trace_writeback_pages_written+0xf0/0xf0
[ 52.571705][ T33] ? kvm_sched_clock_read+0x18/0x40
[ 52.577006][ T33] ? kthread_data+0x50/0xc0
[ 52.581547][ T33] wb_workfn+0xea3/0xf30
[ 52.585843][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 52.591641][ T33] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 52.598318][ T33] ? inode_wait_for_writeback+0x220/0x220
[ 52.604036][ T33] ? __kasan_check_write+0x14/0x20
[ 52.609415][ T33] ? _raw_spin_lock+0x94/0xf0
[ 52.614445][ T33] ? _raw_spin_trylock_bh+0x150/0x150
[ 52.620464][ T33] ? _raw_spin_unlock+0x4d/0x70
[ 52.625518][ T33] process_one_work+0x6c8/0xbb0
[ 52.630752][ T33] rescuer_thread+0x73d/0xf80
[ 52.636177][ T33] ? rcu_free_pwq+0x30/0x30
[ 52.641178][ T33] ? __kasan_check_read+0x11/0x20
[ 52.647612][ T33] ? __kthread_parkme+0xab/0x1f0
[ 52.653493][ T33] kthread+0x3f5/0x4f0
[ 52.657726][ T33] ? rcu_free_pwq+0x30/0x30
[ 52.662422][ T33] ? kthread_blkcg+0xd0/0xd0
[ 52.667500][ T33] ret_from_fork+0x1f/0x30
[ 52.672092][ T33]
[ 52.675160][ C0] CPU: 0 PID: 473 Comm: syz-executor Not tainted syzkaller #0
[ 52.677272][ T33] FAULT_INJECTION: forcing a failure.
[ 52.677272][ T33] name failslab, interval 1, probability 10, space 0, times 73
[ 52.682703][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 52.682715][ C0] Call Trace:
[ 52.682720][ C0]
[ 52.682726][ C0] __dump_stack+0x21/0x30
[ 52.682746][ C0] dump_stack_lvl+0x110/0x170
[ 52.682759][ C0] ? show_regs_print_info+0x20/0x20
[ 52.682775][ C0] ? prandom_u32+0x24d/0x290
[ 52.682792][ C0] dump_stack+0x15/0x20
[ 52.735685][ C0] should_fail+0x3ab/0x500
[ 52.740167][ C0] __should_failslab+0xa4/0xe0
[ 52.744946][ C0] should_failslab+0x9/0x20
[ 52.749538][ C0] slab_pre_alloc_hook+0x39/0xd0
[ 52.754501][ C0] ? dst_alloc+0x15c/0x1d0
[ 52.759017][ C0] kmem_cache_alloc+0x44/0x260
[ 52.763960][ C0] ? ipv6_sysctl_rtcache_flush+0x100/0x100
[ 52.769882][ C0] dst_alloc+0x15c/0x1d0
[ 52.774209][ C0] icmp6_dst_alloc+0xec/0x520
[ 52.778976][ C0] ? security_sk_classify_flow+0x7b/0x90
[ 52.784600][ C0] ? icmpv6_flow_init+0xd2/0x130
[ 52.789625][ C0] ndisc_send_skb+0x2a9/0xcf0
[ 52.794323][ C0] ? do_exit+0xb70/0x29a0
[ 52.798651][ C0] ? do_group_exit+0x149/0x310
[ 52.803534][ C0] ? __x64_sys_exit_group+0x3f/0x40
[ 52.808987][ C0] ? x64_sys_call+0x832/0x9a0
[ 52.813653][ C0] ? do_syscall_64+0x4c/0xa0
[ 52.818253][ C0] ? ndisc_alloc_skb+0x290/0x290
[ 52.823182][ C0] ? skb_put+0x10a/0x1f0
[ 52.827511][ C0] ndisc_send_rs+0x711/0x960
[ 52.832270][ C0] ? ndisc_send_rs+0xa1/0x960
[ 52.837348][ C0] addrconf_rs_timer+0x35a/0x600
[ 52.842514][ C0] ? addrconf_disable_policy_idev+0x360/0x360
[ 52.848861][ C0] ? addrconf_disable_policy_idev+0x360/0x360
[ 52.855049][ C0] call_timer_fn+0x38/0x290
[ 52.859755][ C0] ? addrconf_disable_policy_idev+0x360/0x360
[ 52.866028][ C0] __run_timers+0x637/0x9a0
[ 52.870589][ C0] ? calc_index+0x200/0x200
[ 52.875358][ C0] ? hrtimer_interrupt+0x6b6/0x8c0
[ 52.880561][ C0] run_timer_softirq+0x6a/0xf0
[ 52.885406][ C0] handle_softirqs+0x250/0x560
[ 52.890609][ C0] __do_softirq+0xb/0xd
[ 52.894842][ C0] do_softirq+0xdc/0x130
[ 52.899289][ C0]
[ 52.902310][ C0]
[ 52.905861][ C0] ? __local_bh_enable_ip+0x80/0x80
[ 52.911394][ C0] ? __local_bh_enable_ip+0x58/0x80
[ 52.916941][ C0] __local_bh_enable_ip+0x75/0x80
[ 52.922048][ C0] _raw_spin_unlock_bh+0x51/0x60
[ 52.927082][ C0] fib6_clean_all+0x1c9/0x270
[ 52.931760][ C0] ? rt6_sync_down_dev+0x140/0x140
[ 52.936876][ C0] ? fib6_del+0xf00/0xf00
[ 52.941289][ C0] ? node_free_rcu+0x30/0x30
[ 52.946819][ C0] ? rt6_sync_down_dev+0x140/0x140
[ 52.952118][ C0] ? __kasan_check_write+0x14/0x20
[ 52.957529][ C0] rt6_disable_ip+0x115/0x730
[ 52.962880][ C0] ? __queue_work+0x903/0xc60
[ 52.968130][ C0] ? fib6_ifdown+0x4e0/0x4e0
[ 52.973075][ C0] ? __kasan_check_read+0x11/0x20
[ 52.978207][ C0] addrconf_ifdown+0x144/0x1910
[ 52.983073][ C0] ? nf_nat_masq_schedule+0x22d/0x4d0
[ 52.988455][ C0] ? addrconf_cleanup+0x1c0/0x1c0
[ 52.993485][ C0] ? __kasan_check_write+0x14/0x20
[ 52.998763][ C0] ? mutex_unlock+0x8f/0x230
[ 53.003949][ C0] ? __mutex_lock_slowpath+0x10/0x10
[ 53.009321][ C0] ? nf_nat_masq_schedule+0x4d0/0x4d0
[ 53.014719][ C0] ? masq_device_event+0xd0/0xd0
[ 53.019912][ C0] addrconf_notify+0x3bd/0xe00
[ 53.025117][ C0] raw_notifier_call_chain+0x90/0x100
[ 53.031067][ C0] dev_close_many+0x325/0x4d0
[ 53.035956][ C0] ? __dev_open+0x500/0x500
[ 53.040806][ C0] ? __kasan_check_read+0x11/0x20
[ 53.046669][ C0] unregister_netdevice_many+0x477/0x1a00
[ 53.052480][ C0] ? __queue_work+0x903/0xc60
[ 53.057361][ C0] ? alloc_netdev_mqs+0xe20/0xe20
[ 53.062806][ C0] ? __queue_delayed_work+0x188/0x200
[ 53.068532][ C0] ? __kasan_check_read+0x11/0x20
[ 53.073655][ C0] unregister_netdevice_queue+0x2e1/0x320
[ 53.079403][ C0] ? __kasan_check_read+0x11/0x20
[ 53.084791][ C0] ? linkwatch_urgent_event+0x34d/0x460
[ 53.090470][ C0] ? list_netdevice+0x4c0/0x4c0
[ 53.095568][ C0] __tun_detach+0xc9d/0x1450
[ 53.100631][ C0] tun_chr_close+0x92/0x140
[ 53.105245][ C0] ? tun_chr_open+0x540/0x540
[ 53.110101][ C0] __fput+0x22b/0x900
[ 53.114077][ C0] ____fput+0x15/0x20
[ 53.118312][ C0] task_work_run+0x127/0x190
[ 53.123072][ C0] do_exit+0xb70/0x29a0
[ 53.127230][ C0] ? put_task_struct+0x90/0x90
[ 53.132200][ C0] ? __fdget_pos+0x1f7/0x380
[ 53.137338][ C0] ? ksys_write+0x1eb/0x260
[ 53.142067][ C0] ? __ia32_sys_read+0x90/0x90
[ 53.146859][ C0] do_group_exit+0x149/0x310
[ 53.151484][ C0] __x64_sys_exit_group+0x3f/0x40
[ 53.156876][ C0] x64_sys_call+0x832/0x9a0
[ 53.161477][ C0] do_syscall_64+0x4c/0xa0
[ 53.165899][ C0] ? clear_bhb_loop+0x50/0xa0
[ 53.170791][ C0] ? clear_bhb_loop+0x50/0xa0
[ 53.175645][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 53.181646][ C0] RIP: 0033:0x7f51ec7b9e99
[ 53.186262][ C0] Code: Unable to access opcode bytes at RIP 0x7f51ec7b9e6f.
[ 53.193774][ C0] RSP: 002b:00007ffdc30eec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 53.202869][ C0] RAX: ffffffffffffffda RBX: 00007f51ec84f316 RCX: 00007f51ec7b9e99
[ 53.211327][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
[ 53.219746][ C0] RBP: 000000000000000c R08: 0000000000000000 R09: 00007f51ec84f30a
[ 53.228273][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdc30efed0
[ 53.237335][ C0] R13: 00007f51ec84f30a R14: 0000000000009898 R15: 00007ffdc30eff10
[ 53.246228][ C0]
[ 53.249516][ T33] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 53.249663][ C0] FAULT_INJECTION: forcing a failure.
[ 53.249663][ C0] name failslab, interval 1, probability 10, space 0, times 72
[ 53.258138][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 53.258158][ T33] Workqueue: writeback wb_workfn (flush-8:0)
[ 53.258187][ T33] Call Trace:
[ 53.258195][ T33]
[ 53.297241][ T33] __dump_stack+0x21/0x30
[ 53.301679][ T33] dump_stack_lvl+0x110/0x170
[ 53.306387][ T33] ? show_regs_print_info+0x20/0x20
[ 53.311717][ T33] ? prandom_u32+0x24d/0x290
[ 53.316492][ T33] dump_stack+0x15/0x20
[ 53.320669][ T33] should_fail+0x3ab/0x500
[ 53.325169][ T33] __should_failslab+0xa4/0xe0
[ 53.330455][ T33] should_failslab+0x9/0x20
[ 53.334966][ T33] slab_pre_alloc_hook+0x39/0xd0
[ 53.339992][ T33] ? mempool_alloc_slab+0x1d/0x30
[ 53.345270][ T33] kmem_cache_alloc+0x44/0x260
[ 53.350706][ T33] ? mempool_free+0x330/0x330
[ 53.355567][ T33] mempool_alloc_slab+0x1d/0x30
[ 53.360521][ T33] mempool_alloc+0x167/0x4c0
[ 53.365177][ T33] ? blk_mq_delay_run_hw_queue+0x30/0x30
[ 53.370895][ T33] ? mempool_resize+0x880/0x880
[ 53.375952][ T33] ? blk_mq_sched_insert_requests+0x216/0x340
[ 53.382022][ T33] bio_alloc_bioset+0x124/0x910
[ 53.387054][ T33] bio_split+0xb4/0x310
[ 53.391402][ T33] __blk_queue_split+0xf6f/0x15c0
[ 53.396440][ T33] ? blk_end_sync_rq+0x50/0x50
[ 53.401545][ T33] ? preempt_count_add+0x90/0x1b0
[ 53.407097][ T33] blk_mq_submit_bio+0x1cc/0x1900
[ 53.412308][ T33] ? ktime_get+0x12f/0x160
[ 53.416973][ T33] ? submit_bio_checks+0xb77/0x11e0
[ 53.422783][ T33] ? blk_mq_try_issue_list_directly+0x490/0x490
[ 53.430400][ T33] ? __submit_bio+0x900/0x900
[ 53.435538][ T33] ? blk_try_enter_queue+0x165/0x350
[ 53.443268][ T33] ? dump_stack_lvl+0x144/0x170
[ 53.450463][ T33] __submit_bio+0x817/0x900
[ 53.456087][ T33] ? prandom_u32+0x24d/0x290
[ 53.461871][ T33] ? trace_raw_output_block_rq_remap+0x260/0x260
[ 53.469432][ T33] ? up_read+0x56/0x1d0
[ 53.474267][ T33] submit_bio_noacct+0x73b/0x800
[ 53.480053][ T33] ? __this_cpu_preempt_check+0x13/0x20
[ 53.485743][ T33] ? __mod_memcg_lruvec_state+0x122/0x1b0
[ 53.491721][ T33] ? blk_put_request+0x20/0x20
[ 53.496729][ T33] ? fscrypt_mergeable_bio+0x1c6/0x670
[ 53.503117][ T33] ? page_mapping+0x210/0x2d0
[ 53.507933][ T33] ? blkcg_set_ioprio+0x1f6/0x320
[ 53.513087][ T33] submit_bio+0x367/0x620
[ 53.517742][ T33] ? submit_bio_noacct+0x800/0x800
[ 53.523398][ T33] ? bio_add_page+0x2c2/0x460
[ 53.530198][ T33] ext4_bio_write_page+0xeff/0x1b40
[ 53.536241][ T33] mpage_submit_page+0x17d/0x220
[ 53.541539][ T33] ext4_writepages+0x19a3/0x30a0
[ 53.547054][ T33] ? ext4_readpage+0x220/0x220
[ 53.552022][ T33] ? __kasan_check_write+0x14/0x20
[ 53.557250][ T33] ? ext4_readpage+0x220/0x220
[ 53.562848][ T33] do_writepages+0x476/0x6d0
[ 53.568946][ T33] ? __writepage+0x130/0x130
[ 53.573727][ T33] ? __kasan_check_write+0x14/0x20
[ 53.579117][ T33] ? _raw_spin_lock+0x94/0xf0
[ 53.584234][ T33] __writeback_single_inode+0xd9/0x9e0
[ 53.591461][ T33] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 53.598678][ T33] writeback_sb_inodes+0x9f3/0x1610
[ 53.604182][ T33] ? queue_io+0x4b0/0x4b0
[ 53.610238][ T33] ? down_read_trylock+0x317/0x630
[ 53.617745][ T33] __writeback_inodes_wb+0x127/0x400
[ 53.625063][ T33] writeback_inodes_wb+0x19d/0x240
[ 53.630475][ T33] ? trace_writeback_pages_written+0xf0/0xf0
[ 53.638240][ T33] ? kvm_sched_clock_read+0x18/0x40
[ 53.646958][ T33] ? kthread_data+0x50/0xc0
[ 53.655287][ T33] wb_workfn+0xea3/0xf30
[ 53.661719][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 53.668579][ T33] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 53.675506][ T33] ? inode_wait_for_writeback+0x220/0x220
[ 53.682322][ T33] ? __kasan_check_write+0x14/0x20
[ 53.688601][ T33] ? _raw_spin_lock+0x94/0xf0
[ 53.693476][ T33] ? _raw_spin_trylock_bh+0x150/0x150
[ 53.699687][ T33] ? _raw_spin_unlock+0x4d/0x70
[ 53.704723][ T33] process_one_work+0x6c8/0xbb0
[ 53.709916][ T33] rescuer_thread+0x73d/0xf80
[ 53.715411][ T33] ? rcu_free_pwq+0x30/0x30
[ 53.720707][ T33] ? __kasan_check_read+0x11/0x20
[ 53.725833][ T33] ? __kthread_parkme+0xab/0x1f0
[ 53.731084][ T33] kthread+0x3f5/0x4f0
[ 53.735148][ T33] ? rcu_free_pwq+0x30/0x30
[ 53.739646][ T33] ? kthread_blkcg+0xd0/0xd0
[ 53.744489][ T33] ret_from_fork+0x1f/0x30
[ 53.749084][ T33]
[ 53.752180][ C0] CPU: 0 PID: 473 Comm: syz-executor Not tainted syzkaller #0
[ 53.752320][ C1] FAULT_INJECTION: forcing a failure.
[ 53.752320][ C1] name failslab, interval 1, probability 10, space 0, times 72
[ 53.759666][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 53.783193][ C0] Call Trace:
[ 53.787204][ C0]
[ 53.790218][ C0] __dump_stack+0x21/0x30
[ 53.796089][ C0] dump_stack_lvl+0x110/0x170
[ 53.801414][ C0] ? show_regs_print_info+0x20/0x20
[ 53.806953][ C0] ? prandom_u32+0x24d/0x290
[ 53.812518][ C0] dump_stack+0x15/0x20
[ 53.816875][ C0] should_fail+0x3ab/0x500
[ 53.822154][ C0] __should_failslab+0xa4/0xe0
[ 53.827216][ C0] should_failslab+0x9/0x20
[ 53.832936][ C0] slab_pre_alloc_hook+0x39/0xd0
[ 53.838948][ C0] kmem_cache_alloc_trace+0x48/0x270
[ 53.847010][ C0] ? dst_cow_metrics_generic+0x55/0x1c0
[ 53.853236][ C0] dst_cow_metrics_generic+0x55/0x1c0
[ 53.860004][ C0] icmp6_dst_alloc+0x35f/0x520
[ 53.866904][ C0] ndisc_send_skb+0x2a9/0xcf0
[ 53.872428][ C0] ? do_exit+0xb70/0x29a0
[ 53.877553][ C0] ? do_group_exit+0x149/0x310
[ 53.883351][ C0] ? __x64_sys_exit_group+0x3f/0x40
[ 53.889061][ C0] ? x64_sys_call+0x832/0x9a0
[ 53.893931][ C0] ? do_syscall_64+0x4c/0xa0
[ 53.899438][ C0] ? ndisc_alloc_skb+0x290/0x290
[ 53.904564][ C0] ? ndisc_send_rs+0x61f/0x960
[ 53.909786][ C0] ? memcpy+0x56/0x70
[ 53.914414][ C0] ndisc_send_rs+0x711/0x960
[ 53.919688][ C0] addrconf_rs_timer+0x35a/0x600
[ 53.926653][ C0] ? addrconf_disable_policy_idev+0x360/0x360
[ 53.933168][ C0] ? _raw_spin_lock_irq+0x95/0xf0
[ 53.938955][ C0] ? _raw_spin_lock_irqsave+0x130/0x130
[ 53.945166][ C0] ? addrconf_disable_policy_idev+0x360/0x360
[ 53.951995][ C0] call_timer_fn+0x38/0x290
[ 53.956696][ C0] ? addrconf_disable_policy_idev+0x360/0x360
[ 53.963459][ C0] __run_timers+0x637/0x9a0
[ 53.969275][ C0] ? calc_index+0x200/0x200
[ 53.974133][ C0] ? hrtimer_interrupt+0x6b6/0x8c0
[ 53.980205][ C0] run_timer_softirq+0x6a/0xf0
[ 53.985403][ C0] handle_softirqs+0x250/0x560
[ 53.990804][ C0] __do_softirq+0xb/0xd
[ 53.995860][ C0] do_softirq+0xdc/0x130
[ 54.000494][ C0]
[ 54.003540][ C0]
[ 54.006620][ C0] ? __local_bh_enable_ip+0x80/0x80
[ 54.012028][ C0] ? __local_bh_enable_ip+0x58/0x80
[ 54.017685][ C0] __local_bh_enable_ip+0x75/0x80
[ 54.023453][ C0] _raw_spin_unlock_bh+0x51/0x60
[ 54.028926][ C0] fib6_clean_all+0x1c9/0x270
[ 54.033972][ C0] ? rt6_sync_down_dev+0x140/0x140
[ 54.039365][ C0] ? fib6_del+0xf00/0xf00
[ 54.044250][ C0] ? node_free_rcu+0x30/0x30
[ 54.049354][ C0] ? rt6_sync_down_dev+0x140/0x140
[ 54.054664][ C0] ? __kasan_check_write+0x14/0x20
[ 54.059801][ C0] rt6_disable_ip+0x115/0x730
[ 54.064750][ C0] ? __queue_work+0x903/0xc60
[ 54.069566][ C0] ? fib6_ifdown+0x4e0/0x4e0
[ 54.074241][ C0] ? __kasan_check_read+0x11/0x20
[ 54.079258][ C0] addrconf_ifdown+0x144/0x1910
[ 54.084384][ C0] ? nf_nat_masq_schedule+0x22d/0x4d0
[ 54.090020][ C0] ? addrconf_cleanup+0x1c0/0x1c0
[ 54.095141][ C0] ? __kasan_check_write+0x14/0x20
[ 54.100421][ C0] ? mutex_unlock+0x8f/0x230
[ 54.105285][ C0] ? __mutex_lock_slowpath+0x10/0x10
[ 54.110679][ C0] ? nf_nat_masq_schedule+0x4d0/0x4d0
[ 54.116243][ C0] ? masq_device_event+0xd0/0xd0
[ 54.121196][ C0] addrconf_notify+0x3bd/0xe00
[ 54.125957][ C0] raw_notifier_call_chain+0x90/0x100
[ 54.131323][ C0] dev_close_many+0x325/0x4d0
[ 54.136111][ C0] ? __dev_open+0x500/0x500
[ 54.140625][ C0] ? __kasan_check_read+0x11/0x20
[ 54.145667][ C0] unregister_netdevice_many+0x477/0x1a00
[ 54.151595][ C0] ? __queue_work+0x903/0xc60
[ 54.156299][ C0] ? alloc_netdev_mqs+0xe20/0xe20
[ 54.161330][ C0] ? __queue_delayed_work+0x188/0x200
[ 54.166787][ C0] ? __kasan_check_read+0x11/0x20
[ 54.171806][ C0] unregister_netdevice_queue+0x2e1/0x320
[ 54.177702][ C0] ? __kasan_check_read+0x11/0x20
[ 54.182901][ C0] ? linkwatch_urgent_event+0x34d/0x460
[ 54.188451][ C0] ? list_netdevice+0x4c0/0x4c0
[ 54.193496][ C0] __tun_detach+0xc9d/0x1450
[ 54.198181][ C0] tun_chr_close+0x92/0x140
[ 54.202851][ C0] ? tun_chr_open+0x540/0x540
[ 54.207613][ C0] __fput+0x22b/0x900
[ 54.211609][ C0] ____fput+0x15/0x20
[ 54.215594][ C0] task_work_run+0x127/0x190
[ 54.220261][ C0] do_exit+0xb70/0x29a0
[ 54.224554][ C0] ? put_task_struct+0x90/0x90
[ 54.229840][ C0] ? __fdget_pos+0x1f7/0x380
[ 54.234610][ C0] ? ksys_write+0x1eb/0x260
[ 54.239572][ C0] ? __ia32_sys_read+0x90/0x90
[ 54.244782][ C0] do_group_exit+0x149/0x310
[ 54.249500][ C0] __x64_sys_exit_group+0x3f/0x40
[ 54.254773][ C0] x64_sys_call+0x832/0x9a0
[ 54.259364][ C0] do_syscall_64+0x4c/0xa0
[ 54.264338][ C0] ? clear_bhb_loop+0x50/0xa0
[ 54.270163][ C0] ? clear_bhb_loop+0x50/0xa0
[ 54.275650][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 54.282538][ C0] RIP: 0033:0x7f51ec7b9e99
[ 54.287632][ C0] Code: Unable to access opcode bytes at RIP 0x7f51ec7b9e6f.
[ 54.295562][ C0] RSP: 002b:00007ffdc30eec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 54.306337][ C0] RAX: ffffffffffffffda RBX: 00007f51ec84f316 RCX: 00007f51ec7b9e99
[ 54.314613][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
[ 54.325565][ C0] RBP: 000000000000000c R08: 0000000000000000 R09: 00007f51ec84f30a
[ 54.333958][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdc30efed0
[ 54.343964][ C0] R13: 00007f51ec84f30a R14: 0000000000009898 R15: 00007ffdc30eff10
[ 54.356128][ C0]
[ 54.360380][ C1] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 54.360834][ T185] FAULT_INJECTION: forcing a failure.
[ 54.360834][ T185] name failslab, interval 1, probability 10, space 0, times 71
[ 54.368361][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 54.393019][ C1] Workqueue: writeback wb_workfn (flush-8:0)
[ 54.399223][ C1] Call Trace:
[ 54.402998][ C1]
[ 54.406024][ C1] __dump_stack+0x21/0x30
[ 54.410492][ C1] dump_stack_lvl+0x110/0x170
[ 54.416250][ C1] ? show_regs_print_info+0x20/0x20
[ 54.422399][ C1] ? prandom_u32+0x24d/0x290
[ 54.430254][ C1] dump_stack+0x15/0x20
[ 54.435438][ C1] should_fail+0x3ab/0x500
[ 54.440652][ C1] __should_failslab+0xa4/0xe0
[ 54.445436][ C1] should_failslab+0x9/0x20
[ 54.451520][ C1] slab_pre_alloc_hook+0x39/0xd0
[ 54.458209][ C1] ? __alloc_skb+0xe4/0x730
[ 54.463462][ C1] kmem_cache_alloc+0x44/0x260
[ 54.469988][ C1] __alloc_skb+0xe4/0x730
[ 54.476886][ C1] ndisc_send_rs+0x310/0x960
[ 54.483404][ C1] ? ndisc_send_rs+0xa1/0x960
[ 54.489649][ C1] addrconf_rs_timer+0x35a/0x600
[ 54.495776][ C1] ? addrconf_disable_policy_idev+0x360/0x360
[ 54.502103][ C1] ? _raw_spin_lock_irq+0x95/0xf0
[ 54.507311][ C1] ? _raw_spin_lock_irqsave+0x130/0x130
[ 54.513031][ C1] ? addrconf_disable_policy_idev+0x360/0x360
[ 54.519287][ C1] call_timer_fn+0x38/0x290
[ 54.523808][ C1] ? addrconf_disable_policy_idev+0x360/0x360
[ 54.530411][ C1] __run_timers+0x637/0x9a0
[ 54.534952][ C1] ? calc_index+0x200/0x200
[ 54.539645][ C1] ? sched_clock_cpu+0x18/0x3d0
[ 54.544611][ C1] run_timer_softirq+0x6a/0xf0
[ 54.549366][ C1] handle_softirqs+0x250/0x560
[ 54.554585][ C1] __irq_exit_rcu+0x52/0xf0
[ 54.559452][ C1] irq_exit_rcu+0x9/0x10
[ 54.563812][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 54.569685][ C1]
[ 54.572621][ C1]
[ 54.575886][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 54.582123][ C1] RIP: 0010:dump_stack_lvl+0x144/0x170
[ 54.587577][ C1] Code: e6 00 02 00 00 31 ff e8 3a 77 be fc 49 81 e5 00 02 00 00 75 07 e8 ec 72 be fc eb 06 e8 e5 72 be fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40
[ 54.611578][ C1] RSP: 0018:ffffc9000022e540 EFLAGS: 00000293
[ 54.618393][ C1] RAX: ffffffff84ab43fb RBX: ffffffff8564c0a0 RCX: ffff8881087813c0
[ 54.626894][ C1] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
[ 54.635123][ C1] RBP: ffffc9000022e5c8 R08: 0000000000000003 R09: 0000000000000004
[ 54.643115][ C1] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000
[ 54.651460][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000045ca8
[ 54.659643][ C1] ? dump_stack_lvl+0x13b/0x170
[ 54.664578][ C1] ? show_regs_print_info+0x20/0x20
[ 54.670156][ C1] ? prandom_u32+0x24d/0x290
[ 54.675021][ C1] dump_stack+0x15/0x20
[ 54.679277][ C1] should_fail+0x3ab/0x500
[ 54.684047][ C1] __should_failslab+0xa4/0xe0
[ 54.689092][ C1] should_failslab+0x9/0x20
[ 54.693683][ C1] slab_pre_alloc_hook+0x39/0xd0
[ 54.698800][ C1] ? mempool_alloc_slab+0x1d/0x30
[ 54.704077][ C1] kmem_cache_alloc+0x44/0x260
[ 54.708857][ C1] ? mempool_free+0x330/0x330
[ 54.713710][ C1] mempool_alloc_slab+0x1d/0x30
[ 54.718643][ C1] mempool_alloc+0x167/0x4c0
[ 54.723318][ C1] ? blk_mq_delay_run_hw_queue+0x30/0x30
[ 54.729126][ C1] ? mempool_resize+0x880/0x880
[ 54.734255][ C1] ? blk_mq_sched_insert_requests+0x216/0x340
[ 54.740688][ C1] bio_alloc_bioset+0x124/0x910
[ 54.745774][ C1] bio_split+0xb4/0x310
[ 54.750059][ C1] __blk_queue_split+0xf6f/0x15c0
[ 54.755266][ C1] ? blk_end_sync_rq+0x50/0x50
[ 54.760388][ C1] ? preempt_count_add+0x90/0x1b0
[ 54.765945][ C1] blk_mq_submit_bio+0x1cc/0x1900
[ 54.771153][ C1] ? ktime_get+0x12f/0x160
[ 54.775759][ C1] ? submit_bio_checks+0xb77/0x11e0
[ 54.781445][ C1] ? blk_mq_try_issue_list_directly+0x490/0x490
[ 54.787929][ C1] ? __submit_bio+0x900/0x900
[ 54.792829][ C1] ? blk_try_enter_queue+0x165/0x350
[ 54.798517][ C1] ? dump_stack_lvl+0x144/0x170
[ 54.803640][ C1] __submit_bio+0x817/0x900
[ 54.808261][ C1] ? prandom_u32+0x24d/0x290
[ 54.813106][ C1] ? trace_raw_output_block_rq_remap+0x260/0x260
[ 54.819728][ C1] ? up_read+0x56/0x1d0
[ 54.823925][ C1] submit_bio_noacct+0x73b/0x800
[ 54.829055][ C1] ? __this_cpu_preempt_check+0x13/0x20
[ 54.834962][ C1] ? __mod_memcg_lruvec_state+0x122/0x1b0
[ 54.840867][ C1] ? blk_put_request+0x20/0x20
[ 54.846072][ C1] ? fscrypt_mergeable_bio+0x1c6/0x670
[ 54.851737][ C1] ? page_mapping+0x210/0x2d0
[ 54.856405][ C1] ? blkcg_set_ioprio+0x1f6/0x320
[ 54.861769][ C1] submit_bio+0x367/0x620
[ 54.866283][ C1] ? submit_bio_noacct+0x800/0x800
[ 54.871390][ C1] ? bio_add_page+0x2c2/0x460
[ 54.873560][ T410] FAULT_INJECTION: forcing a failure.
[ 54.873560][ T410] name failslab, interval 1, probability 10, space 0, times 71
[ 54.876306][ C1] ext4_bio_write_page+0xeff/0x1b40
[ 54.894352][ C1] mpage_submit_page+0x17d/0x220
[ 54.899580][ C1] ext4_writepages+0x19a3/0x30a0
[ 54.904775][ C1] ? ext4_readpage+0x220/0x220
[ 54.909636][ C1] ? __kasan_check_write+0x14/0x20
[ 54.910809][ C0] FAULT_INJECTION: forcing a failure.
[ 54.910809][ C0] name failslab, interval 1, probability 10, space 0, times 71
[ 54.915201][ C1] ? ext4_readpage+0x220/0x220
[ 54.934057][ C1] do_writepages+0x476/0x6d0
[ 54.939003][ C1] ? __writepage+0x130/0x130
[ 54.943620][ C1] ? __kasan_check_write+0x14/0x20
[ 54.948725][ C1] ? _raw_spin_lock+0x94/0xf0
[ 54.953393][ C1] __writeback_single_inode+0xd9/0x9e0
[ 54.958856][ C1] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 54.964982][ C1] writeback_sb_inodes+0x9f3/0x1610
[ 54.971493][ C1] ? queue_io+0x4b0/0x4b0
[ 54.976112][ C1] ? down_read_trylock+0x317/0x630
[ 54.981948][ C1] __writeback_inodes_wb+0x127/0x400
[ 54.988244][ C1] writeback_inodes_wb+0x19d/0x240
[ 54.993577][ C1] ? trace_writeback_pages_written+0xf0/0xf0
[ 55.000403][ C1] ? kvm_sched_clock_read+0x18/0x40
[ 55.005731][ C1] ? kthread_data+0x50/0xc0
[ 55.011801][ C1] wb_workfn+0xea3/0xf30
[ 55.016517][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 55.023258][ C1] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 55.030923][ C1] ? inode_wait_for_writeback+0x220/0x220
[ 55.037084][ C1] ? __kasan_check_write+0x14/0x20
[ 55.042333][ C1] ? _raw_spin_lock+0x94/0xf0
[ 55.047221][ C1] ? _raw_spin_trylock_bh+0x150/0x150
[ 55.052733][ C1] ? _raw_spin_unlock+0x4d/0x70
[ 55.057950][ C1] process_one_work+0x6c8/0xbb0
[ 55.063068][ C1] rescuer_thread+0x73d/0xf80
[ 55.068090][ C1] ? rcu_free_pwq+0x30/0x30
[ 55.072773][ C1] ? __kasan_check_read+0x11/0x20
[ 55.077802][ C1] ? __kthread_parkme+0xab/0x1f0
[ 55.082735][ C1] kthread+0x3f5/0x4f0
[ 55.086795][ C1] ? rcu_free_pwq+0x30/0x30
[ 55.091295][ C1] ? kthread_blkcg+0xd0/0xd0
[ 55.095877][ C1] ret_from_fork+0x1f/0x30
[ 55.100285][ C1]
[ 55.103382][ C0] CPU: 0 PID: 1 Comm: init Not tainted syzkaller #0
[ 55.103940][ T33] FAULT_INJECTION: forcing a failure.
[ 55.103940][ T33] name failslab, interval 1, probability 10, space 0, times 69
[ 55.109968][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 55.109980][ C0] Call Trace:
[ 55.109985][ C0]
[ 55.109990][ C0] __dump_stack+0x21/0x30
[ 55.110008][ C0] dump_stack_lvl+0x110/0x170
[ 55.149100][ C0] ? show_regs_print_info+0x20/0x20
[ 55.154319][ C0] ? prandom_u32+0x24d/0x290
[ 55.159173][ C0] dump_stack+0x15/0x20
[ 55.163318][ C0] should_fail+0x3ab/0x500
[ 55.167824][ C0] ? __tcp_send_ack+0x9b/0x6c0
[ 55.172810][ C0] __should_failslab+0xa4/0xe0
[ 55.177571][ C0] should_failslab+0x9/0x20
[ 55.182235][ C0] slab_pre_alloc_hook+0x39/0xd0
[ 55.187521][ C0] ? __tcp_send_ack+0x9b/0x6c0
[ 55.192335][ C0] ? __tcp_send_ack+0x9b/0x6c0
[ 55.197213][ C0] __kmalloc_track_caller+0x6c/0x2c0
[ 55.202516][ C0] ? __tcp_send_ack+0x9b/0x6c0
[ 55.207652][ C0] ? __tcp_send_ack+0x9b/0x6c0
[ 55.212765][ C0] __alloc_skb+0x210/0x730
[ 55.217616][ C0] __tcp_send_ack+0x9b/0x6c0
[ 55.222208][ C0] tcp_send_ack+0x3b/0x60
[ 55.226733][ C0] tcp_delack_timer_handler+0x339/0x740
[ 55.232448][ C0] tcp_delack_timer+0x104/0x230
[ 55.237313][ C0] ? tcp_write_timer+0x1d0/0x1d0
[ 55.242249][ C0] call_timer_fn+0x38/0x290
[ 55.247217][ C0] ? tcp_write_timer+0x1d0/0x1d0
[ 55.252254][ C0] __run_timers+0x637/0x9a0
[ 55.257236][ C0] ? calc_index+0x200/0x200
[ 55.262448][ C0] ? sched_clock_cpu+0x18/0x3d0
[ 55.268763][ C0] run_timer_softirq+0x6a/0xf0
[ 55.273716][ C0] handle_softirqs+0x250/0x560
[ 55.278670][ C0] __irq_exit_rcu+0x52/0xf0
[ 55.283611][ C0] irq_exit_rcu+0x9/0x10
[ 55.288482][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 55.295123][ C0]
[ 55.298301][ C0]
[ 55.301417][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 55.307576][ C0] RIP: 0010:kasan_check_range+0x6a/0x2a0
[ 55.313728][ C0] Code: ff df 49 89 fe 49 c1 ee 03 49 ba 00 00 00 00 00 fc ff df 4f 8d 1c 16 4c 8d 44 3e ff 4d 89 c1 49 c1 e9 03 4b 8d 1c 29 49 89 dc <4d> 29 dc 49 83 fc 10 7f 29 4d 85 e4 0f 84 45 01 00 00 4c 89 cb 48
[ 55.335129][ C0] RSP: 0018:ffffc90000017988 EFLAGS: 00000a06
[ 55.342032][ C0] RAX: ffffffff81524201 RBX: fffffbfff0ce23f1 RCX: ffffffff8152421c
[ 55.351806][ C0] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff86711f80
[ 55.360026][ C0] RBP: ffffc900000179b0 R08: ffffffff86711f83 R09: 1ffffffff0ce23f0
[ 55.368405][ C0] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: fffffbfff0ce23f1
[ 55.376638][ C0] R13: dffffc0000000001 R14: 1ffffffff0ce23f0 R15: 1ffff92000002f3c
[ 55.384867][ C0] ? __printk_wait_on_cpu_lock+0x1/0x40
[ 55.391589][ C0] ? __printk_wait_on_cpu_lock+0x1c/0x40
[ 55.398409][ C0] __kasan_check_read+0x11/0x20
[ 55.403373][ C0] __printk_wait_on_cpu_lock+0x1c/0x40
[ 55.409281][ C0] dump_stack_lvl+0xce/0x170
[ 55.414298][ C0] ? show_regs_print_info+0x20/0x20
[ 55.420222][ C0] ? prandom_u32+0x24d/0x290
[ 55.424932][ C0] dump_stack+0x15/0x20
[ 55.429430][ C0] should_fail+0x3ab/0x500
[ 55.434604][ C0] __should_failslab+0xa4/0xe0
[ 55.439741][ C0] should_failslab+0x9/0x20
[ 55.445566][ C0] slab_pre_alloc_hook+0x39/0xd0
[ 55.451014][ C0] ? fcntl_setlk+0xa6/0x1070
[ 55.455912][ C0] kmem_cache_alloc+0x44/0x260
[ 55.461041][ C0] fcntl_setlk+0xa6/0x1070
[ 55.465674][ C0] ? avc_has_perm+0x163/0x250
[ 55.470762][ C0] ? vfs_lock_file+0xc0/0xc0
[ 55.475769][ C0] ? avc_has_perm_noaudit+0x490/0x490
[ 55.481349][ C0] ? __kasan_check_write+0x14/0x20
[ 55.486574][ C0] ? _copy_from_user+0x95/0xd0
[ 55.491418][ C0] do_fcntl+0x498/0x1220
[ 55.495741][ C0] ? match_file+0x130/0x130
[ 55.500683][ C0] ? kill_fasync+0x210/0x210
[ 55.505268][ C0] ? security_file_fcntl+0x84/0xa0
[ 55.510370][ C0] __se_sys_fcntl+0xdf/0x1b0
[ 55.514960][ C0] ? debug_smp_processor_id+0x17/0x20
[ 55.520763][ C0] __x64_sys_fcntl+0x7b/0x90
[ 55.525580][ C0] x64_sys_call+0x6b8/0x9a0
[ 55.530090][ C0] do_syscall_64+0x4c/0xa0
[ 55.534502][ C0] ? clear_bhb_loop+0x50/0xa0
[ 55.539266][ C0] ? clear_bhb_loop+0x50/0xa0
[ 55.544030][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 55.550776][ C0] RIP: 0033:0x7eff52675add
[ 55.555394][ C0] Code: 24 08 48 89 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 c7 44 24 b8 10 00 00 00 48 89 44 24 c8 83 fe 09 74 1a b8 48 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 23 c3 66 2e 0f 1f 84 00 00 00 00 00 48 8d 54
[ 55.575412][ C0] RSP: 002b:00007ffd3527e218 EFLAGS: 00000293 ORIG_RAX: 0000000000000048
[ 55.584553][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007eff52675add
[ 55.592686][ C0] RDX: 00007ffd3527e220 RSI: 0000000000000007 RDI: 0000000000000003
[ 55.600816][ C0] RBP: 0000000000000003 R08: 00007ffd3527e240 R09: 0000000000000000
[ 55.609032][ C0] R10: 0000000000000008 R11: 0000000000000293 R12: 0000000000000000
[ 55.617298][ C0] R13: 00007ffd3527e240 R14: 0000000000000002 R15: 000055e432ee7d98
[ 55.625399][ C0]
[ 55.628603][ T1] CPU: 1 PID: 1 Comm: init Not tainted syzkaller #0
[ 55.630545][ T60] FAULT_INJECTION: forcing a failure.
[ 55.630545][ T60] name failslab, interval 1, probability 10, space 0, times 68
[ 55.635377][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 55.635391][ T1] Call Trace:
[ 55.635395][ T1]
[ 55.635400][ T1] __dump_stack+0x21/0x30
[ 55.635419][ T1] dump_stack_lvl+0x110/0x170
[ 55.635431][ T1] ? show_regs_print_info+0x20/0x20
[ 55.680136][ T1] ? prandom_u32+0x24d/0x290
[ 55.684990][ T1] dump_stack+0x15/0x20
[ 55.689406][ T1] should_fail+0x3ab/0x500
[ 55.693909][ T1] __should_failslab+0xa4/0xe0
[ 55.698753][ T1] should_failslab+0x9/0x20
[ 55.703253][ T1] slab_pre_alloc_hook+0x39/0xd0
[ 55.708427][ T1] ? fcntl_setlk+0xa6/0x1070
[ 55.713205][ T1] kmem_cache_alloc+0x44/0x260
[ 55.717981][ T1] fcntl_setlk+0xa6/0x1070
[ 55.722671][ T1] ? avc_has_perm+0x163/0x250
[ 55.727546][ T1] ? vfs_lock_file+0xc0/0xc0
[ 55.732129][ T1] ? avc_has_perm_noaudit+0x490/0x490
[ 55.737951][ T1] ? __kasan_check_write+0x14/0x20
[ 55.743344][ T1] ? _copy_from_user+0x95/0xd0
[ 55.748403][ T1] do_fcntl+0x498/0x1220
[ 55.753016][ T1] ? match_file+0x130/0x130
[ 55.757523][ T1] ? kill_fasync+0x210/0x210
[ 55.762115][ T1] ? security_file_fcntl+0x84/0xa0
[ 55.767531][ T1] __se_sys_fcntl+0xdf/0x1b0
[ 55.772600][ T1] ? debug_smp_processor_id+0x17/0x20
[ 55.778176][ T1] __x64_sys_fcntl+0x7b/0x90
[ 55.783214][ T1] x64_sys_call+0x6b8/0x9a0
[ 55.790705][ T1] do_syscall_64+0x4c/0xa0
[ 55.796249][ T1] ? clear_bhb_loop+0x50/0xa0
[ 55.801513][ T1] ? clear_bhb_loop+0x50/0xa0
[ 55.807150][ T1] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 55.813965][ T1] RIP: 0033:0x7eff52675add
[ 55.819060][ T1] Code: 24 08 48 89 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 c7 44 24 b8 10 00 00 00 48 89 44 24 c8 83 fe 09 74 1a b8 48 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 23 c3 66 2e 0f 1f 84 00 00 00 00 00 48 8d 54
[ 55.839138][ T1] RSP: 002b:00007ffd3527e218 EFLAGS: 00000293 ORIG_RAX: 0000000000000048
[ 55.848836][ T1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007eff52675add
[ 55.856914][ T1] RDX: 00007ffd3527e220 RSI: 0000000000000007 RDI: 0000000000000003
[ 55.865149][ T1] RBP: 0000000000000003 R08: 00007ffd3527e240 R09: 0000000000000000
[ 55.873384][ T1] R10: 0000000000000008 R11: 0000000000000293 R12: 0000000000000000
[ 55.881644][ T1] R13: 00007ffd3527e240 R14: 0000000000000002 R15: 000055e432ee7d98
[ 55.890058][ T1]
[ 55.893086][ T60] CPU: 0 PID: 60 Comm: kworker/0:2 Not tainted syzkaller #0
[ 55.900393][ T60] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 55.911014][ T60] Workqueue: mld mld_dad_work
[ 55.915730][ T60] Call Trace:
[ 55.919020][ T60]
[ 55.921945][ T60] __dump_stack+0x21/0x30
[ 55.926545][ T60] dump_stack_lvl+0x110/0x170
[ 55.931509][ T60] ? show_regs_print_info+0x20/0x20
[ 55.936828][ T60] ? prandom_u32+0x24d/0x290
[ 55.941550][ T60] dump_stack+0x15/0x20
[ 55.945903][ T60] should_fail+0x3ab/0x500
[ 55.950329][ T60] __should_failslab+0xa4/0xe0
[ 55.955268][ T60] should_failslab+0x9/0x20
[ 55.959943][ T60] slab_pre_alloc_hook+0x39/0xd0
[ 55.964880][ T60] ? dst_alloc+0x15c/0x1d0
[ 55.969503][ T60] kmem_cache_alloc+0x44/0x260
[ 55.974279][ T60] ? ipv6_sysctl_rtcache_flush+0x100/0x100
[ 55.980180][ T60] dst_alloc+0x15c/0x1d0
[ 55.984786][ T60] icmp6_dst_alloc+0xec/0x520
[ 55.989467][ T60] ? security_sk_classify_flow+0x7b/0x90
[ 55.995350][ T60] ? icmpv6_flow_init+0xd2/0x130
[ 56.000286][ T60] mld_sendpack+0x4d9/0xba0
[ 56.004985][ T60] ? add_grec+0x1340/0x1340
[ 56.009500][ T60] ? add_grec+0xf70/0x1340
[ 56.014092][ T60] ? memcpy+0x56/0x70
[ 56.018164][ T60] ? __kasan_check_write+0x14/0x20
[ 56.023617][ T60] mld_send_initial_cr+0x1c0/0x320
[ 56.028805][ T60] mld_dad_work+0x3a/0x4e0
[ 56.033226][ T60] process_one_work+0x6c8/0xbb0
[ 56.038599][ T60] worker_thread+0xaa0/0x1250
[ 56.043273][ T60] ? __kasan_check_read+0x11/0x20
[ 56.048463][ T60] kthread+0x3f5/0x4f0
[ 56.052560][ T60] ? worker_clr_flags+0x190/0x190
[ 56.057933][ T60] ? kthread_blkcg+0xd0/0xd0
[ 56.063051][ T60] ret_from_fork+0x1f/0x30
[ 56.067463][ T60]
[ 56.070475][ T33] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 56.070872][ T6] FAULT_INJECTION: forcing a failure.
[ 56.070872][ T6] name failslab, interval 1, probability 10, space 0, times 67
[ 56.077721][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 56.101200][ T33] Workqueue: writeback wb_workfn (flush-8:0)
[ 56.107229][ T33] Call Trace:
[ 56.110507][ T33]
[ 56.113867][ T33] __dump_stack+0x21/0x30
[ 56.118607][ T33] dump_stack_lvl+0x110/0x170
[ 56.123448][ T33] ? show_regs_print_info+0x20/0x20
[ 56.128636][ T33] ? prandom_u32+0x24d/0x290
[ 56.133215][ T33] dump_stack+0x15/0x20
[ 56.137446][ T33] should_fail+0x3ab/0x500
[ 56.141875][ T33] __should_failslab+0xa4/0xe0
[ 56.146641][ T33] should_failslab+0x9/0x20
[ 56.151286][ T33] slab_pre_alloc_hook+0x39/0xd0
[ 56.156327][ T33] ? mempool_alloc_slab+0x1d/0x30
[ 56.161434][ T33] kmem_cache_alloc+0x44/0x260
[ 56.166230][ T33] ? mempool_free+0x330/0x330
[ 56.170990][ T33] mempool_alloc_slab+0x1d/0x30
[ 56.176119][ T33] mempool_alloc+0x167/0x4c0
[ 56.180804][ T33] ? blk_mq_delay_run_hw_queue+0x30/0x30
[ 56.186535][ T33] ? mempool_resize+0x880/0x880
[ 56.191676][ T33] ? blk_mq_sched_insert_requests+0x216/0x340
[ 56.197748][ T33] bio_alloc_bioset+0x124/0x910
[ 56.202595][ T33] bio_split+0xb4/0x310
[ 56.206760][ T33] __blk_queue_split+0xf6f/0x15c0
[ 56.211876][ T33] ? blk_end_sync_rq+0x50/0x50
[ 56.216631][ T33] blk_mq_submit_bio+0x1cc/0x1900
[ 56.221651][ T33] ? ktime_get+0x12f/0x160
[ 56.226265][ T33] ? submit_bio_checks+0xb77/0x11e0
[ 56.231469][ T33] ? blk_mq_try_issue_list_directly+0x490/0x490
[ 56.237906][ T33] ? __submit_bio+0x900/0x900
[ 56.242685][ T33] ? blk_try_enter_queue+0x165/0x350
[ 56.250759][ T33] ? dump_stack_lvl+0x144/0x170
[ 56.256684][ T33] __submit_bio+0x817/0x900
[ 56.261838][ T33] ? prandom_u32+0x24d/0x290
[ 56.266607][ T33] ? trace_raw_output_block_rq_remap+0x260/0x260
[ 56.274705][ T33] ? up_read+0x56/0x1d0
[ 56.279035][ T33] submit_bio_noacct+0x73b/0x800
[ 56.280935][ T416] udevd[416]: failed to send result of seq 4552 to main daemon: No buffer space available
[ 56.284337][ T33] ? __this_cpu_preempt_check+0x13/0x20
[ 56.300002][ T33] ? __mod_memcg_lruvec_state+0x122/0x1b0
[ 56.305838][ T33] ? blk_put_request+0x20/0x20
[ 56.310779][ T33] ? fscrypt_mergeable_bio+0x1c6/0x670
[ 56.316233][ T33] ? page_mapping+0x210/0x2d0
[ 56.321104][ T33] ? blkcg_set_ioprio+0x1f6/0x320
[ 56.326117][ T33] submit_bio+0x367/0x620
[ 56.330436][ T33] ? submit_bio_noacct+0x800/0x800
[ 56.335537][ T33] ? bio_add_page+0x2c2/0x460
[ 56.340214][ T33] ext4_bio_write_page+0xeff/0x1b40
[ 56.345512][ T33] mpage_submit_page+0x17d/0x220
[ 56.350442][ T33] ext4_writepages+0x19a3/0x30a0
[ 56.355389][ T33] ? ext4_readpage+0x220/0x220
[ 56.360285][ T33] ? __kasan_check_write+0x14/0x20
[ 56.365397][ T33] ? ext4_readpage+0x220/0x220
[ 56.370457][ T33] do_writepages+0x476/0x6d0
[ 56.375385][ T33] ? __writepage+0x130/0x130
[ 56.380016][ T33] ? __kasan_check_write+0x14/0x20
[ 56.385144][ T33] ? _raw_spin_lock+0x94/0xf0
[ 56.389925][ T33] __writeback_single_inode+0xd9/0x9e0
[ 56.395623][ T33] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 56.401955][ T33] writeback_sb_inodes+0x9f3/0x1610
[ 56.407299][ T33] ? queue_io+0x4b0/0x4b0
[ 56.411637][ T33] ? down_read_trylock+0x317/0x630
[ 56.417129][ T33] __writeback_inodes_wb+0x127/0x400
[ 56.422760][ T33] writeback_inodes_wb+0x19d/0x240
[ 56.428131][ T33] ? trace_writeback_pages_written+0xf0/0xf0
[ 56.434540][ T33] ? kvm_sched_clock_read+0x18/0x40
[ 56.439752][ T33] ? kthread_data+0x50/0xc0
[ 56.444255][ T33] wb_workfn+0xea3/0xf30
[ 56.448622][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 56.454853][ T33] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 56.461408][ T33] ? inode_wait_for_writeback+0x220/0x220
[ 56.467215][ T33] ? __kasan_check_write+0x14/0x20
[ 56.472492][ T33] ? _raw_spin_lock+0x94/0xf0
[ 56.477264][ T33] ? _raw_spin_trylock_bh+0x150/0x150
[ 56.482619][ T33] ? _raw_spin_unlock+0x4d/0x70
[ 56.487460][ T33] process_one_work+0x6c8/0xbb0
[ 56.492308][ T33] rescuer_thread+0x73d/0xf80
[ 56.496995][ T33] ? rcu_free_pwq+0x30/0x30
[ 56.501573][ T33] ? __kasan_check_read+0x11/0x20
[ 56.506695][ T33] ? __kthread_parkme+0xab/0x1f0
[ 56.511626][ T33] kthread+0x3f5/0x4f0
[ 56.516072][ T33] ? rcu_free_pwq+0x30/0x30
[ 56.520661][ T33] ? kthread_blkcg+0xd0/0xd0
[ 56.525383][ T33] ret_from_fork+0x1f/0x30
[ 56.529833][ T33]
[ 56.532870][ T6] CPU: 0 PID: 6 Comm: kworker/0:0 Not tainted syzkaller #0
[ 56.533115][ T33] FAULT_INJECTION: forcing a failure.
[ 56.533115][ T33] name failslab, interval 1, probability 10, space 0, times 65
[ 56.540324][ T6] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 56.540336][ T6] Workqueue: mld mld_ifc_work
[ 56.540356][ T6] Call Trace:
[ 56.540360][ T6]
[ 56.540367][ T6] __dump_stack+0x21/0x30
[ 56.540383][ T6] dump_stack_lvl+0x110/0x170
[ 56.540396][ T6] ? show_regs_print_info+0x20/0x20
[ 56.590685][ T6] ? prandom_u32+0x24d/0x290
[ 56.595568][ T6] dump_stack+0x15/0x20
[ 56.600394][ T6] should_fail+0x3ab/0x500
[ 56.605400][ T6] ? mld_newpack+0x143/0x9e0
[ 56.610107][ T6] __should_failslab+0xa4/0xe0
[ 56.615140][ T6] should_failslab+0x9/0x20
[ 56.619753][ T6] slab_pre_alloc_hook+0x39/0xd0
[ 56.624768][ T6] ? mld_newpack+0x143/0x9e0
[ 56.629853][ T6] ? mld_newpack+0x143/0x9e0
[ 56.634451][ T6] __kmalloc_track_caller+0x6c/0x2c0
[ 56.639741][ T6] ? mld_newpack+0x143/0x9e0
[ 56.644469][ T6] ? mld_newpack+0x143/0x9e0
[ 56.649499][ T6] __alloc_skb+0x210/0x730
[ 56.654631][ T6] mld_newpack+0x143/0x9e0
[ 56.659352][ T6] ? mld_sendpack+0xba0/0xba0
[ 56.664027][ T6] ? add_grec+0x1340/0x1340
[ 56.668532][ T6] ? add_grec+0xf70/0x1340
[ 56.673528][ T6] add_grec+0xee8/0x1340
[ 56.677818][ T6] ? wait_for_completion_killable_timeout+0x10/0x10
[ 56.684661][ T6] mld_ifc_work+0x728/0xc40
[ 56.689200][ T6] process_one_work+0x6c8/0xbb0
[ 56.694169][ T6] worker_thread+0xaa0/0x1250
[ 56.698851][ T6] kthread+0x3f5/0x4f0
[ 56.702928][ T6] ? worker_clr_flags+0x190/0x190
[ 56.708160][ T6] ? kthread_blkcg+0xd0/0xd0
[ 56.712922][ T6] ret_from_fork+0x1f/0x30
[ 56.717369][ T6]
[ 56.720396][ T33] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 56.727594][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 56.738052][ T33] Workqueue: writeback wb_workfn (flush-8:0)
[ 56.744449][ T33] Call Trace:
[ 56.747902][ T33]
[ 56.750832][ T33] __dump_stack+0x21/0x30
[ 56.755260][ T33] dump_stack_lvl+0x110/0x170
[ 56.760033][ T33] ? show_regs_print_info+0x20/0x20
[ 56.765257][ T33] ? prandom_u32+0x24d/0x290
[ 56.770389][ T33] dump_stack+0x15/0x20
[ 56.774578][ T33] should_fail+0x3ab/0x500
[ 56.779030][ T33] __should_failslab+0xa4/0xe0
[ 56.784054][ T33] should_failslab+0x9/0x20
[ 56.788772][ T33] slab_pre_alloc_hook+0x39/0xd0
[ 56.794021][ T33] ? mempool_alloc_slab+0x1d/0x30
[ 56.799494][ T33] kmem_cache_alloc+0x44/0x260
[ 56.804511][ T33] ? mempool_free+0x330/0x330
[ 56.809199][ T33] mempool_alloc_slab+0x1d/0x30
[ 56.814052][ T33] mempool_alloc+0x167/0x4c0
[ 56.818783][ T33] ? virtqueue_add+0x3541/0x4210
[ 56.823810][ T33] ? mempool_resize+0x880/0x880
[ 56.828786][ T33] sg_pool_alloc+0xb0/0xe0
[ 56.833217][ T33] __sg_alloc_table+0x1c1/0x6d0
[ 56.838173][ T33] sg_alloc_table_chained+0x8b/0x1e0
[ 56.843544][ T33] ? sg_alloc_table_chained+0x1e0/0x1e0
[ 56.849186][ T33] scsi_alloc_sgtables+0x292/0x8a0
[ 56.854493][ T33] ? scsi_io_completion_action+0xce0/0xce0
[ 56.860311][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 56.866138][ T33] sd_init_command+0x60e/0x2610
[ 56.871093][ T33] scsi_queue_rq+0x176e/0x31c0
[ 56.875959][ T33] blk_mq_dispatch_rq_list+0xa06/0x1c50
[ 56.881621][ T33] ? blk_mq_get_driver_tag+0x920/0x920
[ 56.887085][ T33] blk_mq_do_dispatch_sched+0xadf/0xc90
[ 56.892735][ T33] ? blk_mq_exit_sched+0x590/0x590
[ 56.898102][ T33] __blk_mq_sched_dispatch_requests+0x32c/0x410
[ 56.904330][ T33] ? blk_mq_sched_dispatch_requests+0x1c0/0x1c0
[ 56.910682][ T33] blk_mq_sched_dispatch_requests+0x102/0x1c0
[ 56.916820][ T33] __blk_mq_run_hw_queue+0xf3/0x170
[ 56.922099][ T33] __blk_mq_delay_run_hw_queue+0x17e/0x420
[ 56.928079][ T33] ? blk_mq_delay_run_hw_queue+0x30/0x30
[ 56.933991][ T33] ? sbitmap_any_bit_set+0x119/0x160
[ 56.939268][ T33] blk_mq_run_hw_queue+0x282/0x3a0
[ 56.944461][ T33] blk_mq_sched_insert_requests+0x1cd/0x340
[ 56.950464][ T33] blk_mq_flush_plug_list+0x4e2/0x6b0
[ 56.955848][ T33] ? blk_mq_insert_requests+0x340/0x340
[ 56.961519][ T33] ? dd_prepare_request+0xd/0x40
[ 56.966625][ T33] blk_flush_plug_list+0x404/0x450
[ 56.971833][ T33] ? blk_check_plugged+0x270/0x270
[ 56.976957][ T33] ? preempt_count_add+0x90/0x1b0
[ 56.982020][ T33] ? blk_account_io_start+0x2b8/0x2f0
[ 56.987395][ T33] blk_mq_submit_bio+0xb23/0x1900
[ 56.992606][ T33] ? ktime_get+0x12f/0x160
[ 56.997072][ T33] ? blk_mq_try_issue_list_directly+0x490/0x490
[ 57.003672][ T33] ? __submit_bio+0x900/0x900
[ 57.008357][ T33] ? blk_try_enter_queue+0x165/0x350
[ 57.013753][ T33] ? dump_stack_lvl+0x144/0x170
[ 57.018601][ T33] __submit_bio+0x817/0x900
[ 57.023276][ T33] ? prandom_u32+0x24d/0x290
[ 57.028311][ T33] ? trace_raw_output_block_rq_remap+0x260/0x260
[ 57.035034][ T33] ? up_read+0x56/0x1d0
[ 57.039204][ T33] submit_bio_noacct+0x73b/0x800
[ 57.044362][ T33] ? __this_cpu_preempt_check+0x13/0x20
[ 57.050124][ T33] ? __mod_memcg_lruvec_state+0x122/0x1b0
[ 57.056576][ T33] ? blk_put_request+0x20/0x20
[ 57.061718][ T33] ? fscrypt_mergeable_bio+0x1c6/0x670
[ 57.067215][ T33] ? page_mapping+0x210/0x2d0
[ 57.071897][ T33] ? blkcg_set_ioprio+0x1f6/0x320
[ 57.076910][ T33] submit_bio+0x367/0x620
[ 57.081286][ T33] ? submit_bio_noacct+0x800/0x800
[ 57.086678][ T33] ? bio_add_page+0x2c2/0x460
[ 57.091438][ T33] ext4_bio_write_page+0xeff/0x1b40
[ 57.096987][ T33] mpage_submit_page+0x17d/0x220
[ 57.102329][ T33] ext4_writepages+0x19a3/0x30a0
[ 57.107283][ T33] ? ext4_readpage+0x220/0x220
[ 57.112071][ T33] ? __kasan_check_write+0x14/0x20
[ 57.117258][ T33] ? ext4_readpage+0x220/0x220
[ 57.122095][ T33] do_writepages+0x476/0x6d0
[ 57.126698][ T33] ? __writepage+0x130/0x130
[ 57.131380][ T33] ? __kasan_check_write+0x14/0x20
[ 57.137172][ T33] ? _raw_spin_lock+0x94/0xf0
[ 57.141921][ T33] __writeback_single_inode+0xd9/0x9e0
[ 57.147364][ T33] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 57.153686][ T33] writeback_sb_inodes+0x9f3/0x1610
[ 57.158974][ T33] ? queue_io+0x4b0/0x4b0
[ 57.163512][ T33] ? down_read_trylock+0x317/0x630
[ 57.168905][ T33] __writeback_inodes_wb+0x127/0x400
[ 57.174531][ T33] writeback_inodes_wb+0x19d/0x240
[ 57.179979][ T33] ? trace_writeback_pages_written+0xf0/0xf0
[ 57.186061][ T33] ? kvm_sched_clock_read+0x18/0x40
[ 57.191945][ T33] ? kthread_data+0x50/0xc0
[ 57.196439][ T33] wb_workfn+0xea3/0xf30
[ 57.200686][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 57.206607][ T33] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 57.213029][ T33] ? inode_wait_for_writeback+0x220/0x220
[ 57.218861][ T33] ? __kasan_check_write+0x14/0x20
[ 57.224505][ T33] ? _raw_spin_lock+0x94/0xf0
[ 57.230389][ T33] ? _raw_spin_trylock_bh+0x150/0x150
[ 57.236243][ T33] ? _raw_spin_unlock+0x4d/0x70
[ 57.241525][ T33] process_one_work+0x6c8/0xbb0
[ 57.246723][ T33] rescuer_thread+0x73d/0xf80
[ 57.251390][ T33] ? rcu_free_pwq+0x30/0x30
[ 57.256064][ T33] ? __kasan_check_read+0x11/0x20
[ 57.261548][ T33] ? __kthread_parkme+0xab/0x1f0
[ 57.266893][ T33] kthread+0x3f5/0x4f0
[ 57.271223][ T33] ? rcu_free_pwq+0x30/0x30
[ 57.275749][ T33] ? kthread_blkcg+0xd0/0xd0
[ 57.280506][ T33] ret_from_fork+0x1f/0x30
[ 57.285107][ T33]
[ 57.288171][ T410] CPU: 0 PID: 410 Comm: syz-executor Not tainted syzkaller #0
[ 57.289466][ T33] FAULT_INJECTION: forcing a failure.
[ 57.289466][ T33] name failslab, interval 1, probability 10, space 0, times 64
[ 57.296330][ T410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 57.296345][ T410] Call Trace:
[ 57.296351][ T410]
[ 57.296357][ T410] __dump_stack+0x21/0x30
[ 57.296377][ T410] dump_stack_lvl+0x110/0x170
[ 57.296389][ T410] ? show_regs_print_info+0x20/0x20
[ 57.296403][ T410] ? prandom_u32+0x24d/0x290
[ 57.296417][ T410] dump_stack+0x15/0x20
[ 57.349713][ T410] should_fail+0x3ab/0x500
[ 57.354326][ T410] __should_failslab+0xa4/0xe0
[ 57.359093][ T410] should_failslab+0x9/0x20
[ 57.363671][ T410] slab_pre_alloc_hook+0x39/0xd0
[ 57.368792][ T410] ? security_inode_alloc+0x33/0x110
[ 57.374073][ T410] kmem_cache_alloc+0x44/0x260
[ 57.378947][ T410] security_inode_alloc+0x33/0x110
[ 57.384069][ T410] inode_init_always+0x72c/0x9b0
[ 57.389007][ T410] new_inode_pseudo+0x91/0x210
[ 57.394001][ T410] create_pipe_files+0x4f/0x6c0
[ 57.399470][ T410] __do_pipe_flags+0x4f/0x200
[ 57.404582][ T410] do_pipe2+0xa7/0x190
[ 57.409414][ T410] ? pipe_fcntl+0x510/0x510
[ 57.413936][ T410] ? __ia32_sys_read+0x90/0x90
[ 57.418802][ T410] ? debug_smp_processor_id+0x17/0x20
[ 57.424704][ T410] __x64_sys_pipe2+0x5a/0x70
[ 57.429485][ T410] x64_sys_call+0x354/0x9a0
[ 57.434247][ T410] do_syscall_64+0x4c/0xa0
[ 57.439113][ T410] ? clear_bhb_loop+0x50/0xa0
[ 57.445991][ T410] ? clear_bhb_loop+0x50/0xa0
[ 57.451511][ T410] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 57.459163][ T410] RIP: 0033:0x7f1d588b1ec9
[ 57.464064][ T410] Code: 38 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 eb aa e8 ea 34 00 00 66 2e 0f 1f 84 00 00 00 00 00 31 f6 b8 25 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 07 c3 66 0f 1f 44 00 00 48 c7 c2 e8 ff ff ff
[ 57.485812][ T410] RSP: 002b:00007ffd086932b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000125
[ 57.494501][ T410] RAX: ffffffffffffffda RBX: 0000555570d8d910 RCX: 00007f1d588b1ec9
[ 57.502939][ T410] RDX: 0000000000000003 RSI: 0000000000000000 RDI: 00007ffd086932c8
[ 57.511092][ T410] RBP: 00007ffd08693890 R08: 00007f1d58b05e20 R09: 0000000000000000
[ 57.519236][ T410] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd086936d0
[ 57.528256][ T410] R13: 0000555570d90f80 R14: 0000555570d8dc10 R15: 00007ffd08693410
[ 57.537234][ T410]
[ 57.540451][ T33] CPU: 1 PID: 33 Comm: writeback Not tainted syzkaller #0
[ 57.541538][ T64] FAULT_INJECTION: forcing a failure.
[ 57.541538][ T64] name failslab, interval 1, probability 10, space 0, times 64
[ 57.548042][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 57.571477][ T33] Workqueue: writeback wb_workfn (flush-8:0)
[ 57.577750][ T33] Call Trace:
[ 57.581032][ T33]
[ 57.584239][ T33] __dump_stack+0x21/0x30
[ 57.588852][ T33] dump_stack_lvl+0x110/0x170
[ 57.590889][ T90] FAULT_INJECTION: forcing a failure.
[ 57.590889][ T90] name failslab, interval 1, probability 10, space 0, times 62
[ 57.593782][ T33] ? show_regs_print_info+0x20/0x20
[ 57.614606][ T33] ? prandom_u32+0x24d/0x290
[ 57.619197][ T33] dump_stack+0x15/0x20
[ 57.623346][ T33] should_fail+0x3ab/0x500
[ 57.627928][ T33] __should_failslab+0xa4/0xe0
[ 57.632688][ T33] should_failslab+0x9/0x20
[ 57.637698][ T33] slab_pre_alloc_hook+0x39/0xd0
[ 57.642659][ T33] ? mempool_alloc_slab+0x1d/0x30
[ 57.647689][ T33] kmem_cache_alloc+0x44/0x260
[ 57.652536][ T33] ? mempool_free+0x330/0x330
[ 57.657208][ T33] mempool_alloc_slab+0x1d/0x30
[ 57.662243][ T33] mempool_alloc+0x167/0x4c0
[ 57.667128][ T33] ? virtqueue_add+0x3541/0x4210
[ 57.672565][ T33] ? mempool_resize+0x880/0x880
[ 57.678220][ T33] ? vp_notify+0x5a/0x80
[ 57.682626][ T33] sg_pool_alloc+0xb0/0xe0
[ 57.687403][ T33] __sg_alloc_table+0x1c1/0x6d0
[ 57.692255][ T33] sg_alloc_table_chained+0x8b/0x1e0
[ 57.697893][ T33] ? sg_alloc_table_chained+0x1e0/0x1e0
[ 57.703440][ T33] scsi_alloc_sgtables+0x292/0x8a0
[ 57.709417][ T33] ? scsi_io_completion_action+0xce0/0xce0
[ 57.715279][ T33] sd_init_command+0x60e/0x2610
[ 57.720704][ T33] scsi_queue_rq+0x176e/0x31c0
[ 57.726146][ T33] blk_mq_dispatch_rq_list+0xa06/0x1c50
[ 57.731793][ T33] ? blk_mq_get_driver_tag+0x920/0x920
[ 57.737488][ T33] blk_mq_do_dispatch_sched+0xadf/0xc90
[ 57.743404][ T33] ? blk_mq_exit_sched+0x590/0x590
[ 57.748891][ T33] __blk_mq_sched_dispatch_requests+0x32c/0x410
[ 57.755519][ T33] ? blk_mq_sched_dispatch_requests+0x1c0/0x1c0
[ 57.761957][ T33] blk_mq_sched_dispatch_requests+0x102/0x1c0
[ 57.768197][ T33] __blk_mq_run_hw_queue+0xf3/0x170
[ 57.771853][ T6] FAULT_INJECTION: forcing a failure.
[ 57.771853][ T6] name failslab, interval 1, probability 10, space 0, times 61
[ 57.773482][ T33] __blk_mq_delay_run_hw_queue+0x17e/0x420
[ 57.793198][ T33] ? blk_mq_delay_run_hw_queue+0x30/0x30
[ 57.799031][ T33] ? sbitmap_any_bit_set+0x119/0x160
[ 57.804419][ T33] blk_mq_run_hw_queue+0x282/0x3a0
[ 57.809709][ T33] blk_mq_sched_insert_requests+0x1cd/0x340
[ 57.815898][ T33] blk_mq_flush_plug_list+0x4e2/0x6b0
[ 57.821371][ T33] ? blk_mq_insert_requests+0x340/0x340
[ 57.827272][ T33] ? dd_prepare_request+0xd/0x40
[ 57.832321][ T33] blk_flush_plug_list+0x404/0x450
[ 57.837641][ T33] ? blk_check_plugged+0x270/0x270
[ 57.842852][ T33] ? preempt_count_add+0x90/0x1b0
[ 57.848860][ T33] ? blk_account_io_start+0x2b8/0x2f0
[ 57.854546][ T33] blk_mq_submit_bio+0xb23/0x1900
[ 57.860068][ T33] ? ktime_get+0x12f/0x160
[ 57.864580][ T33] ? blk_mq_try_issue_list_directly+0x490/0x490
[ 57.871359][ T33] ? __submit_bio+0x900/0x900
[ 57.874309][ T101] FAULT_INJECTION: forcing a failure.
[ 57.874309][ T101] name failslab, interval 1, probability 10, space 0, times 61
[ 57.876739][ T33] ? __ext4_journal_stop+0xfe/0x1a0
[ 57.896108][ T33] ? ext4_writepages+0xf01/0x30a0
[ 57.901649][ T33] ? do_writepages+0x476/0x6d0
[ 57.906882][ T33] ? blk_try_enter_queue+0x165/0x350
[ 57.912971][ T33] __submit_bio+0x817/0x900
[ 57.918179][ T33] ? trace_raw_output_block_rq_remap+0x260/0x260
[ 57.924638][ T33] ? debug_smp_processor_id+0x17/0x20
[ 57.930809][ T33] submit_bio_noacct+0x73b/0x800
[ 57.936513][ T33] ? __kasan_slab_free+0x11/0x20
[ 57.941720][ T33] ? slab_free_freelist_hook+0xc2/0x190
[ 57.947560][ T33] ? blk_put_request+0x20/0x20
[ 57.956998][ T33] ? memset+0x35/0x40
[ 57.962009][ T33] ? blkcg_set_ioprio+0x1f6/0x320
[ 57.968238][ T33] submit_bio+0x367/0x620
[ 57.973237][ T33] ? submit_bio_noacct+0x800/0x800
[ 57.979927][ T33] ext4_io_submit+0x15d/0x210
[ 57.987003][ T33] ext4_writepages+0xf83/0x30a0
[ 57.992721][ T33] ? ext4_readpage+0x220/0x220
[ 57.998075][ T33] ? __kasan_check_write+0x14/0x20
[ 58.003522][ T33] ? ext4_readpage+0x220/0x220
[ 58.008715][ T33] do_writepages+0x476/0x6d0
[ 58.013648][ T33] ? __writepage+0x130/0x130
[ 58.018430][ T33] ? __kasan_check_write+0x14/0x20
[ 58.024249][ T33] ? _raw_spin_lock+0x94/0xf0
[ 58.029105][ T33] __writeback_single_inode+0xd9/0x9e0
[ 58.035927][ T33] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 58.042725][ T33] writeback_sb_inodes+0x9f3/0x1610
[ 58.048549][ T33] ? queue_io+0x4b0/0x4b0
[ 58.054056][ T33] ? down_read_trylock+0x317/0x630
[ 58.060469][ T33] __writeback_inodes_wb+0x127/0x400
[ 58.066173][ T33] writeback_inodes_wb+0x19d/0x240
[ 58.071940][ T33] ? trace_writeback_pages_written+0xf0/0xf0
[ 58.078321][ T33] ? kvm_sched_clock_read+0x18/0x40
[ 58.083620][ T33] ? kthread_data+0x50/0xc0
[ 58.088197][ T33] wb_workfn+0xea3/0xf30
[ 58.092448][ T33] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 58.098864][ T33] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 58.105572][ T33] ? inode_wait_for_writeback+0x220/0x220
[ 58.112651][ T33] ? __kasan_check_write+0x14/0x20
[ 58.118072][ T33] ? _raw_spin_lock+0x94/0xf0
[ 58.123029][ T33] ? _raw_spin_trylock_bh+0x150/0x150
[ 58.129042][ T33] ? _raw_spin_unlock+0x4d/0x70
[ 58.134069][ T33] process_one_work+0x6c8/0xbb0
[ 58.139028][ T33] rescuer_thread+0x73d/0xf80
[ 58.143974][ T33] ? rcu_free_pwq+0x30/0x30
[ 58.149785][ T33] ? __kasan_check_read+0x11/0x20
[ 58.155185][ T33] ? __kthread_parkme+0xab/0x1f0
[ 58.160426][ T33] kthread+0x3f5/0x4f0
[ 58.164573][ T33] ? rcu_free_pwq+0x30/0x30
[ 58.169906][ T33] ? kthread_blkcg+0xd0/0xd0
[ 58.174912][ T33] ret_from_fork+0x1f/0x30
[ 58.179340][ T33]
[ 58.182593][ T101] CPU: 0 PID: 101 Comm: udevd Not tainted syzkaller #0
[ 58.182971][ T39] FAULT_INJECTION: forcing a failure.
[ 58.182971][ T39] name failslab, interval 1, probability 10, space 0, times 59
[ 58.191888][ T101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 58.191907][ T101] Call Trace:
[ 58.191914][ T101]
[ 58.191921][ T101] __dump_stack+0x21/0x30
[ 58.191943][ T101] dump_stack_lvl+0x110/0x170
[ 58.191956][ T101] ? show_regs_print_info+0x20/0x20
[ 58.191972][ T101] dump_stack+0x15/0x20
[ 58.191984][ T101] should_fail+0x3ab/0x500
[ 58.192001][ T101] __should_failslab+0xa4/0xe0
[ 58.192020][ T101] should_failslab+0x9/0x20
[ 58.259425][ T101] slab_pre_alloc_hook+0x39/0xd0
[ 58.264681][ T101] ? getname_flags+0xba/0x510
[ 58.269478][ T101] kmem_cache_alloc+0x44/0x260
[ 58.274348][ T101] getname_flags+0xba/0x510
[ 58.279295][ T101] user_path_at_empty+0x2f/0x1c0
[ 58.284525][ T101] vfs_statx+0x109/0xa20
[ 58.289117][ T101] ? from_kgid_munged+0x193/0x6e0
[ 58.294335][ T101] ? vfs_fstatat+0x40/0x40
[ 58.298970][ T101] __se_sys_newfstatat+0x10e/0x3d0
[ 58.304212][ T101] ? __x64_sys_newfstatat+0xb0/0xb0
[ 58.309523][ T101] ? blkcg_maybe_throttle_current+0x1e0/0xa00
[ 58.315796][ T101] ? __fput+0x67c/0x900
[ 58.320055][ T101] __x64_sys_newfstatat+0x9b/0xb0
[ 58.325121][ T101] x64_sys_call+0x2c1/0x9a0
[ 58.329976][ T101] do_syscall_64+0x4c/0xa0
[ 58.334671][ T101] ? clear_bhb_loop+0x50/0xa0
[ 58.339856][ T101] ? clear_bhb_loop+0x50/0xa0
[ 58.344632][ T101] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 58.350663][ T101] RIP: 0033:0x7f6df5174b0a
[ 58.355280][ T101] Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7
[ 58.360892][ T482] FAULT_INJECTION: forcing a failure.
[ 58.360892][ T482] name failslab, interval 1, probability 10, space 0, times 59
[ 58.376120][ T101] RSP: 002b:00007ffe96fe0d68 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
[ 58.376147][ T101] RAX: ffffffffffffffda RBX: 000055701ccb9410 RCX: 00007f6df5174b0a
[ 58.376158][ T101] RDX: 00007ffe96fe0d70 RSI: 000055701cca72a8 RDI: 00000000ffffff9c
[ 58.376170][ T101] RBP: 0000557051a8d658 R08: 00063478c1c69200 R09: 002e98a1243f1fae
[ 58.422820][ T101] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 58.431892][ T101] R13: 00007ffe96fe0d70 R14: 0000000000000000 R15: 00063478c1c69200
[ 58.441745][ T101]
[ 58.445216][ T482] CPU: 1 PID: 482 Comm: kworker/u4:6 Not tainted syzkaller #0
[ 58.445640][ T473] FAULT_INJECTION: forcing a failure.
[ 58.445640][ T473] name failslab, interval 1, probability 10, space 0, times 59
[ 58.453684][ T482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 58.453705][ T482] Workqueue: ext4-rsv-conversion ext4_end_io_rsv_work
[ 58.453730][ T482] Call Trace:
[ 58.453736][ T482]
[ 58.493223][ T482] __dump_stack+0x21/0x30
[ 58.497565][ T482] dump_stack_lvl+0x110/0x170
[ 58.502674][ T482] ? show_regs_print_info+0x20/0x20
[ 58.508122][ T482] ? prandom_u32+0x24d/0x290
[ 58.513645][ T482] dump_stack+0x15/0x20
[ 58.518881][ T482] should_fail+0x3ab/0x500
[ 58.524325][ T482] __should_failslab+0xa4/0xe0
[ 58.530040][ T482] should_failslab+0x9/0x20
[ 58.534655][ T482] slab_pre_alloc_hook+0x39/0xd0
[ 58.540240][ T482] ? __es_insert_extent+0x70e/0x1790
[ 58.546376][ T482] kmem_cache_alloc+0x44/0x260
[ 58.551925][ T482] __es_insert_extent+0x70e/0x1790
[ 58.557096][ T482] ? _raw_write_lock+0x94/0xf0
[ 58.561888][ T482] ext4_es_insert_extent+0x53c/0x2d10
[ 58.567274][ T482] ? ext4_es_scan_clu+0x240/0x240
[ 58.572641][ T482] ? _raw_read_unlock+0x25/0x40
[ 58.577494][ T482] ? ext4_es_scan_range+0x16f/0x1c0
[ 58.582684][ T482] ? ext4_map_blocks+0x1a50/0x1a50
[ 58.587962][ T482] ext4_map_blocks+0x550/0x1a50
[ 58.593585][ T482] ? ext4_issue_zeroout+0x250/0x250
[ 58.599062][ T482] ? __update_load_avg_cfs_rq+0xb1/0x2e0
[ 58.604698][ T482] ext4_convert_unwritten_extents+0x2b6/0x5e0
[ 58.611577][ T482] ? trace_ext4_fallocate_exit+0x130/0x130
[ 58.617701][ T482] ? jbd2_journal_start_reserved+0x1cc/0x3f0
[ 58.624474][ T482] ? ext4_convert_unwritten_io_end_vec+0x33/0x180
[ 58.632168][ T482] ? __ext4_journal_start_reserved+0x1bc/0x350
[ 58.639675][ T482] ext4_convert_unwritten_io_end_vec+0x103/0x180
[ 58.646283][ T482] ext4_end_io_rsv_work+0x2b1/0x620
[ 58.651569][ T482] ? finish_task_switch+0x16b/0x790
[ 58.656772][ T482] ? switch_mm_irqs_off+0x730/0x960
[ 58.662256][ T482] ? ext4_last_io_end_vec+0x70/0x70
[ 58.667555][ T482] ? __schedule+0xbd7/0x14a0
[ 58.672248][ T482] process_one_work+0x6c8/0xbb0
[ 58.677220][ T482] worker_thread+0xaa0/0x1250
[ 58.681912][ T482] ? __kasan_check_read+0x11/0x20
[ 58.687291][ T482] kthread+0x3f5/0x4f0
[ 58.691351][ T482] ? worker_clr_flags+0x190/0x190
[ 58.696663][ T482] ? kthread_blkcg+0xd0/0xd0
[ 58.701348][ T482] ret_from_fork+0x1f/0x30
[ 58.705771][ T482]
[ 58.708785][ T473] CPU: 0 PID: 473 Comm: syz-executor Not tainted syzkaller #0
[ 58.716263][ T473] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 58.726315][ T473] Call Trace:
[ 58.729599][ T473]
[ 58.732527][ T473] __dump_stack+0x21/0x30
[ 58.736854][ T473] dump_stack_lvl+0x110/0x170
[ 58.741519][ T473] ? show_regs_print_info+0x20/0x20
[ 58.746979][ T473] ? prandom_u32+0x24d/0x290
[ 58.751576][ T473] dump_stack+0x15/0x20
[ 58.756003][ T473] should_fail+0x3ab/0x500
[ 58.760594][ T473] ? alloc_uevent_skb+0x85/0x240
[ 58.765615][ T473] __should_failslab+0xa4/0xe0
[ 58.770382][ T473] should_failslab+0x9/0x20
[ 58.774890][ T473] slab_pre_alloc_hook+0x39/0xd0
[ 58.779886][ T473] ? alloc_uevent_skb+0x85/0x240
[ 58.785009][ T473] ? alloc_uevent_skb+0x85/0x240
[ 58.790242][ T473] __kmalloc_track_caller+0x6c/0x2c0
[ 58.795625][ T473] ? alloc_uevent_skb+0x85/0x240
[ 58.800827][ T473] ? alloc_uevent_skb+0x85/0x240
[ 58.805808][ T473] __alloc_skb+0x210/0x730
[ 58.810344][ T473] alloc_uevent_skb+0x85/0x240
[ 58.815205][ T473] ? rx_queue_release+0x170/0x170
[ 58.820303][ T473] kobject_uevent_net_broadcast+0x1a6/0x5a0
[ 58.826560][ T473] kobject_uevent_env+0x52b/0x700
[ 58.831661][ T473] kobject_uevent+0x1d/0x30
[ 58.836399][ T473] __kobject_del+0xd3/0x2c0
[ 58.840892][ T473] kobject_put+0x1db/0x270
[ 58.845296][ T473] net_rx_queue_update_kobjects+0x3f4/0x460
[ 58.851370][ T473] netdev_unregister_kobject+0xf9/0x260
[ 58.857284][ T473] unregister_netdevice_many+0x14e4/0x1a00
[ 58.863422][ T473] ? alloc_netdev_mqs+0xe20/0xe20
[ 58.868436][ T473] ? __queue_delayed_work+0x188/0x200
[ 58.873977][ T473] ? __kasan_check_read+0x11/0x20
[ 58.878994][ T473] unregister_netdevice_queue+0x2e1/0x320
[ 58.884790][ T473] ? __kasan_check_read+0x11/0x20
[ 58.889889][ T473] ? linkwatch_urgent_event+0x34d/0x460
[ 58.895423][ T473] ? list_netdevice+0x4c0/0x4c0
[ 58.900696][ T473] __tun_detach+0xc9d/0x1450
[ 58.905282][ T473] tun_chr_close+0x92/0x140
[ 58.909860][ T473] ? tun_chr_open+0x540/0x540
[ 58.914648][ T473] __fput+0x22b/0x900
[ 58.918781][ T473] ____fput+0x15/0x20
[ 58.922762][ T473] task_work_run+0x127/0x190
[ 58.927366][ T473] do_exit+0xb70/0x29a0
[ 58.931528][ T473] ? put_task_struct+0x90/0x90
[ 58.936636][ T473] ? __fdget_pos+0x1f7/0x380
[ 58.941233][ T473] ? ksys_write+0x1eb/0x260
[ 58.945905][ T473] ? __ia32_sys_read+0x90/0x90
[ 58.950852][ T473] do_group_exit+0x149/0x310
[ 58.955647][ T473] __x64_sys_exit_group+0x3f/0x40
[ 58.960660][ T473] x64_sys_call+0x832/0x9a0
[ 58.965243][ T473] do_syscall_64+0x4c/0xa0
[ 58.969643][ T473] ? clear_bhb_loop+0x50/0xa0
[ 58.974363][ T473] ? clear_bhb_loop+0x50/0xa0
[ 58.979259][ T473] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 58.985168][ T473] RIP: 0033:0x7f51ec7b9e99
[ 58.989691][ T473] Code: Unable to access opcode bytes at RIP 0x7f51ec7b9e6f.
[ 58.997299][ T473] RSP: 002b:00007ffdc30eec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 59.005735][ T473] RAX: ffffffffffffffda RBX: 00007f51ec84f316 RCX: 00007f51ec7b9e99
[ 59.013986][ T473] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
[ 59.022070][ T473] RBP: 000000000000000c R08: 0000000000000000 R09: 00007f51ec84f30a
[ 59.030328][ T473] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdc30efed0
[ 59.038481][ T473] R13: 00007f51ec84f30a R14: 0000000000009898 R15: 00007ffdc30eff10
[ 59.046660][ T473]
[ 59.049807][ C0] FAULT_INJECTION: forcing a failure.
[ 59.049807][ C0] name failslab, interval 1, probability 10, space 0, times 58
[ 59.049812][ T39] CPU: 1 PID: 39 Comm: kworker/1:1 Not tainted syzkaller #0
[ 59.049833][ T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 59.081855][ T39] Workqueue: mld mld_ifc_work
[ 59.087486][ T39] Call Trace:
[ 59.090967][ T39]
[ 59.094079][ T39] __dump_stack+0x21/0x30
[ 59.098600][ T39] dump_stack_lvl+0x110/0x170
[ 59.103319][ T39] ? show_regs_print_info+0x20/0x20
[ 59.108607][ T39] ? prandom_u32+0x24d/0x290
[ 59.113280][ T39] dump_stack+0x15/0x20
[ 59.117686][ T39] should_fail+0x3ab/0x500
[ 59.122537][ T39] __should_failslab+0xa4/0xe0
[ 59.127471][ T39] should_failslab+0x9/0x20
[ 59.131975][ T39] slab_pre_alloc_hook+0x39/0xd0
[ 59.136998][ T39] ? dst_alloc+0x15c/0x1d0
[ 59.141667][ T39] kmem_cache_alloc+0x44/0x260
[ 59.146541][ T39] ? ipv6_sysctl_rtcache_flush+0x100/0x100
[ 59.152423][ T39] dst_alloc+0x15c/0x1d0
[ 59.156660][ T39] icmp6_dst_alloc+0xec/0x520
[ 59.161332][ T39] ? security_sk_classify_flow+0x7b/0x90
[ 59.167256][ T39] ? icmpv6_flow_init+0xd2/0x130
[ 59.172387][ T39] mld_sendpack+0x4d9/0xba0
[ 59.176982][ T39] ? add_grec+0x1340/0x1340
[ 59.181494][ T39] ? add_grec+0xf70/0x1340
[ 59.186082][ T39] ? memcpy+0x56/0x70
[ 59.190164][ T39] ? wait_for_completion_killable_timeout+0x10/0x10
[ 59.196762][ T39] mld_ifc_work+0x7d7/0xc40
[ 59.201455][ T39] ? _raw_spin_lock_irqsave+0x130/0x130
[ 59.207010][ T39] process_one_work+0x6c8/0xbb0
[ 59.211949][ T39] worker_thread+0xaa0/0x1250
[ 59.216806][ T39] ? __kasan_check_read+0x11/0x20
[ 59.221999][ T39] kthread+0x3f5/0x4f0
[ 59.226333][ T39] ? worker_clr_flags+0x190/0x190
[ 59.231394][ T39] ? kthread_blkcg+0xd0/0xd0
[ 59.236167][ T39] ret_from_fork+0x1f/0x30
[ 59.240778][ T39]
[ 59.243798][ C0] CPU: 0 PID: 473 Comm: syz-executor Not tainted syzkaller #0
[ 59.251803][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 59.262598][ C0] Call Trace:
[ 59.266601][ C0]
[ 59.270522][ C0] __dump_stack+0x21/0x30
[ 59.274939][ C0] dump_stack_lvl+0x110/0x170
[ 59.279968][ C0] ? show_regs_print_info+0x20/0x20
[ 59.285347][ C0] ? prandom_u32+0x24d/0x290
[ 59.290073][ C0] dump_stack+0x15/0x20
[ 59.294232][ C0] should_fail+0x3ab/0x500
[ 59.298742][ C0] __should_failslab+0xa4/0xe0
[ 59.303629][ C0] should_failslab+0x9/0x20
[ 59.308599][ C0] slab_pre_alloc_hook+0x39/0xd0
[ 59.313619][ C0] ? __alloc_skb+0xe4/0x730
[ 59.318403][ C0] kmem_cache_alloc+0x44/0x260
[ 59.323168][ C0] __alloc_skb+0xe4/0x730
[ 59.327723][ C0] wg_packet_send_keepalive+0x62/0x1c0
[ 59.333189][ C0] ? wg_expired_send_persistent_keepalive+0x44/0x80
[ 59.340136][ C0] wg_expired_send_persistent_keepalive+0x53/0x80
[ 59.346667][ C0] ? wg_expired_zero_key_material+0x170/0x170
[ 59.352755][ C0] call_timer_fn+0x38/0x290
[ 59.357252][ C0] ? wg_expired_zero_key_material+0x170/0x170
[ 59.363570][ C0] __run_timers+0x637/0x9a0
[ 59.368080][ C0] ? calc_index+0x200/0x200
[ 59.372671][ C0] ? sched_clock_cpu+0x18/0x3d0
[ 59.377532][ C0] run_timer_softirq+0x6a/0xf0
[ 59.382555][ C0] handle_softirqs+0x250/0x560
[ 59.387316][ C0] __irq_exit_rcu+0x52/0xf0
[ 59.391897][ C0] irq_exit_rcu+0x9/0x10
[ 59.396308][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 59.402045][ C0]
[ 59.404981][ C0]
[ 59.408074][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 59.415111][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170
[ 59.420946][ C0] Code: e6 00 02 00 00 31 ff e8 3a 77 be fc 49 81 e5 00 02 00 00 75 07 e8 ec 72 be fc eb 06 e8 e5 72 be fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40
[ 59.430986][ T101] FAULT_INJECTION: forcing a failure.
[ 59.430986][ T101] name failslab, interval 1, probability 10, space 0, times 56
[ 59.443011][ C0] RSP: 0018:ffffc90001f57480 EFLAGS: 00000293
[ 59.443038][ C0] RAX: ffffffff84ab43fb RBX: ffffffff8564c0a0 RCX: ffff8881182c8000
[ 59.443051][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
[ 59.443060][ C0] RBP: ffffc90001f57510 R08: 0000000000000003 R09: 0000000000000004
[ 59.443071][ C0] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000
[ 59.491259][ T26] FAULT_INJECTION: forcing a failure.
[ 59.491259][ T26] name failslab, interval 1, probability 10, space 0, times 55
[ 59.496340][ C0] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff920003eae90
[ 59.517512][ C0] ? dump_stack_lvl+0x13b/0x170
[ 59.522672][ C0] ? show_regs_print_info+0x20/0x20
[ 59.528408][ C0] ? prandom_u32+0x24d/0x290
[ 59.533179][ C0] dump_stack+0x15/0x20
[ 59.537417][ C0] should_fail+0x3ab/0x500
[ 59.542085][ C0] ? alloc_uevent_skb+0x85/0x240
[ 59.547162][ C0] __should_failslab+0xa4/0xe0
[ 59.552422][ C0] should_failslab+0x9/0x20
[ 59.557126][ C0] slab_pre_alloc_hook+0x39/0xd0
[ 59.562267][ C0] ? alloc_uevent_skb+0x85/0x240
[ 59.567481][ C0] ? alloc_uevent_skb+0x85/0x240
[ 59.572655][ C0] __kmalloc_track_caller+0x6c/0x2c0
[ 59.578126][ C0] ? alloc_uevent_skb+0x85/0x240
[ 59.583069][ C0] ? alloc_uevent_skb+0x85/0x240
[ 59.589111][ C0] __alloc_skb+0x210/0x730
[ 59.593564][ C0] alloc_uevent_skb+0x85/0x240
[ 59.598553][ C0] ? rx_queue_release+0x170/0x170
[ 59.603687][ C0] kobject_uevent_net_broadcast+0x1a6/0x5a0
[ 59.609789][ C0] kobject_uevent_env+0x52b/0x700
[ 59.614916][ C0] kobject_uevent+0x1d/0x30
[ 59.619789][ C0] __kobject_del+0xd3/0x2c0
[ 59.624290][ C0] kobject_put+0x1db/0x270
[ 59.628700][ C0] net_rx_queue_update_kobjects+0x3f4/0x460
[ 59.635140][ C0] netdev_unregister_kobject+0xf9/0x260
[ 59.641076][ C0] unregister_netdevice_many+0x14e4/0x1a00
SYZFAIL: pipe failed
(errno 23: Too many open files in system)
[ 59.647310][ C0] ? alloc_netdev_mqs+0xe20/0xe20
[ 59.652419][ C0] ? __queue_delayed_work+0x188/0x200
[ 59.658151][ C0] ? __kasan_check_read+0x11/0x20
[ 59.663171][ C0] unregister_netdevice_queue+0x2e1/0x320
[ 59.669074][ C0] ? __kasan_check_read+0x11/0x20
[ 59.674109][ C0] ? linkwatch_urgent_event+0x34d/0x460
[ 59.679826][ C0] ? list_netdevice+0x4c0/0x4c0
[ 59.684965][ C0] __tun_detach+0xc9d/0x1450
[ 59.689564][ C0] tun_chr_close+0x92/0x140
[ 59.694124][ C0] ? tun_chr_open+0x540/0x540
[ 59.698822][ C0] __fput+0x22b/0x900
[ 59.702987][ C0] ____fput+0x15/0x20
[ 59.706995][ C0] task_work_run+0x127/0x190
[ 59.711786][ C0] do_exit+0xb70/0x29a0
[ 59.716130][ C0] ? put_task_struct+0x90/0x90
[ 59.720887][ C0] ? __fdget_pos+0x1f7/0x380
[ 59.725470][ C0] ? ksys_write+0x1eb/0x260
[ 59.730139][ C0] ? __ia32_sys_read+0x90/0x90
[ 59.734903][ C0] do_group_exit+0x149/0x310
[ 59.739489][ C0] __x64_sys_exit_group+0x3f/0x40
[ 59.744629][ C0] x64_sys_call+0x832/0x9a0
[ 59.749213][ C0] do_syscall_64+0x4c/0xa0
[ 59.753924][ C0] ? clear_bhb_loop+0x50/0xa0
[ 59.758722][ C0] ? clear_bhb_loop+0x50/0xa0
[ 59.763422][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 59.769425][ C0] RIP: 0033:0x7f51ec7b9e99
[ 59.775185][ C0] Code: Unable to access opcode bytes at RIP 0x7f51ec7b9e6f.
[ 59.785803][ C0] RSP: 002b:00007ffdc30eec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 59.796984][ C0] RAX: ffffffffffffffda RBX: 00007f51ec84f316 RCX: 00007f51ec7b9e99
[ 59.807124][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
[ 59.815711][ C0] RBP: 000000000000000c R08: 0000000000000000 R09: 00007f51ec84f30a
[ 59.824838][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdc30efed0
[ 59.833076][ C0] R13: 00007f51ec84f30a R14: 0000000000009898 R15: 00007ffdc30eff10
[ 59.841262][ C0]
[ 59.844366][ T101] CPU: 1 PID: 101 Comm: udevd Not tainted syzkaller #0
[ 59.851419][ T101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 59.861726][ T101] Call Trace:
[ 59.865300][ T101]
[ 59.868503][ T101] __dump_stack+0x21/0x30
[ 59.872850][ T101] dump_stack_lvl+0x110/0x170
[ 59.877553][ T101] ? show_regs_print_info+0x20/0x20
[ 59.882942][ T101] ? prandom_u32+0x24d/0x290
[ 59.887638][ T101] dump_stack+0x15/0x20
[ 59.891810][ T101] should_fail+0x3ab/0x500
[ 59.896449][ T101] __should_failslab+0xa4/0xe0
[ 59.901433][ T101] should_failslab+0x9/0x20
[ 59.906225][ T101] slab_pre_alloc_hook+0x39/0xd0
[ 59.912010][ T101] ? __alloc_file+0x28/0x2a0
[ 59.916593][ T101] kmem_cache_alloc+0x44/0x260
[ 59.921529][ T101] __alloc_file+0x28/0x2a0
[ 59.926284][ T101] alloc_empty_file+0x97/0x180
[ 59.931437][ T101] path_openat+0xf4/0x2f80
[ 59.936449][ T101] ? __stack_depot_save+0x34/0x480
[ 59.941668][ T101] ? __kasan_slab_alloc+0xc9/0xe0
[ 59.947062][ T101] ? __kasan_slab_alloc+0xb7/0xe0
[ 59.952619][ T101] ? slab_post_alloc_hook+0x4f/0x2b0
[ 59.958149][ T101] ? kmem_cache_alloc+0xf7/0x260
[ 59.963193][ T101] ? getname_flags+0xba/0x510
[ 59.967964][ T101] ? getname+0x19/0x20
[ 59.972159][ T101] ? do_sys_openat2+0xeb/0x7f0
[ 59.976918][ T101] ? __x64_sys_openat+0x136/0x160
[ 59.982021][ T101] ? x64_sys_call+0x219/0x9a0
[ 59.986904][ T101] ? do_syscall_64+0x4c/0xa0
[ 59.991489][ T101] ? entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 59.997830][ T101] ? do_filp_open+0x400/0x400
[ 60.002761][ T101] do_filp_open+0x1df/0x400
[ 60.007433][ T101] ? vfs_tmpfile+0x2d0/0x2d0
[ 60.012124][ T101] do_sys_openat2+0x15e/0x7f0
[ 60.016796][ T101] ? blkcg_maybe_throttle_current+0x1e0/0xa00
[ 60.023173][ T101] ? __fput+0x67c/0x900
[ 60.027449][ T101] ? do_sys_open+0xe0/0xe0
[ 60.031875][ T101] __x64_sys_openat+0x136/0x160
[ 60.036893][ T101] x64_sys_call+0x219/0x9a0
[ 60.041491][ T101] do_syscall_64+0x4c/0xa0
[ 60.045894][ T101] ? clear_bhb_loop+0x50/0xa0
[ 60.050749][ T101] ? clear_bhb_loop+0x50/0xa0
[ 60.055587][ T101] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 60.061684][ T101] RIP: 0033:0x7f6df510a407
[ 60.066770][ T101] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
[ 60.086838][ T101] RSP: 002b:00007ffe96fe0d30 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
[ 60.095466][ T101] RAX: ffffffffffffffda RBX: 00007f6df501c880 RCX: 00007f6df510a407
[ 60.103789][ T101] RDX: 0000000000080141 RSI: 000055701cca702e RDI: ffffffffffffff9c
[ 60.112100][ T101] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 60.120255][ T101] R10: 00000000000001a4 R11: 0000000000000202 R12: 00000000ffffffff
[ 60.128409][ T101] R13: 00000000ffffffff R14: ffffffffffffffff R15: 0000000000000000
[ 60.136609][ T101]
[ 60.139630][ T90] CPU: 0 PID: 90 Comm: klogd Not tainted syzkaller #0
[ 60.146750][ T90] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 60.157907][ T90] Call Trace:
[ 60.161194][ T90]
[ 60.164115][ T90] __dump_stack+0x21/0x30
[ 60.168435][ T90] dump_stack_lvl+0x110/0x170
[ 60.173146][ T90] ? show_regs_print_info+0x20/0x20
[ 60.178449][ T90] ? prandom_u32+0x24d/0x290
[ 60.183417][ T90] dump_stack+0x15/0x20
[ 60.187773][ T90] should_fail+0x3ab/0x500
[ 60.192357][ T90] __should_failslab+0xa4/0xe0
[ 60.197141][ T90] should_failslab+0x9/0x20
[ 60.201980][ T90] slab_pre_alloc_hook+0x39/0xd0
[ 60.206919][ T90] ? sock_alloc_inode+0x1b/0xb0
[ 60.211946][ T90] kmem_cache_alloc+0x44/0x260
[ 60.216807][ T90] ? sockfs_init_fs_context+0xb0/0xb0
[ 60.222178][ T90] sock_alloc_inode+0x1b/0xb0
[ 60.226971][ T90] ? sockfs_init_fs_context+0xb0/0xb0
[ 60.232367][ T90] new_inode_pseudo+0x62/0x210
[ 60.237311][ T90] __sock_create+0x12c/0x7a0
[ 60.242674][ T90] __sys_socket+0xec/0x190
[ 60.248337][ T90] __x64_sys_socket+0x7a/0x90
[ 60.253307][ T90] x64_sys_call+0x8c5/0x9a0
[ 60.258834][ T90] do_syscall_64+0x4c/0xa0
[ 60.263516][ T90] ? clear_bhb_loop+0x50/0xa0
[ 60.268822][ T90] ? clear_bhb_loop+0x50/0xa0
[ 60.273883][ T90] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 60.280325][ T90] RIP: 0033:0x7fe49a67c707
[ 60.285182][ T90] Code: 54 24 0c e8 6b ac ff ff 83 f8 ff 74 04 8b 44 24 0c 48 83 c4 18 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c1 e6 0c 00 f7 d8 64 89 01 48
[ 60.305819][ T90] RSP: 002b:00007ffcdc441578 EFLAGS: 00000202 ORIG_RAX: 0000000000000029
[ 60.314578][ T90] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe49a67c707
[ 60.322641][ T90] RDX: 0000000000000000 RSI: 0000000000080002 RDI: 0000000000000001
[ 60.330910][ T90] RBP: 00007fe49a708560 R08: 0000000000000073 R09: 0000000000000001
[ 60.340577][ T90] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002
[ 60.349056][ T90] R13: 00007ffcdc4416a0 R14: 000000000000003a R15: 00007ffcdc4416a0
[ 60.358004][ T90]
[ 60.361373][ T90] socket: no more sockets
[ 60.361868][ T473] FAULT_INJECTION: forcing a failure.
[ 60.361868][ T473] name failslab, interval 1, probability 10, space 0, times 52
[ 60.368116][ T90] FAULT_INJECTION: forcing a failure.
[ 60.368116][ T90] name failslab, interval 1, probability 10, space 0, times 52
[ 60.380105][ T185] CPU: 1 PID: 185 Comm: crond Not tainted syzkaller #0
[ 60.399927][ T185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 60.411368][ T185] Call Trace:
[ 60.415127][ T185]
[ 60.419083][ T185] __dump_stack+0x21/0x30
[ 60.424218][ T185] dump_stack_lvl+0x110/0x170
[ 60.429873][ T185] ? show_regs_print_info+0x20/0x20
[ 60.437279][ T185] ? prandom_u32+0x24d/0x290
[ 60.441976][ T185] dump_stack+0x15/0x20
[ 60.447108][ T185] should_fail+0x3ab/0x500
[ 60.452404][ T185] __should_failslab+0xa4/0xe0
[ 60.458739][ T185] should_failslab+0x9/0x20
[ 60.465034][ T185] slab_pre_alloc_hook+0x39/0xd0
[ 60.470446][ T185] kmem_cache_alloc_trace+0x48/0x270
[ 60.476097][ T185] ? ext4_readdir+0x4ba/0x3aa0
[ 60.481693][ T185] ext4_readdir+0x4ba/0x3aa0
[ 60.486377][ T185] ? memcpy+0x56/0x70
[ 60.490527][ T185] ? memset+0x35/0x40
[ 60.495195][ T185] ? generic_fillattr+0x3c4/0x5f0
[ 60.500924][ T185] ? __kasan_check_write+0x14/0x20
[ 60.506630][ T185] ? rwsem_read_trylock+0x2af/0x640
[ 60.512212][ T185] ? ext4_dir_llseek+0x4b0/0x4b0
[ 60.517336][ T185] ? downgrade_write+0x440/0x440
[ 60.522284][ T185] ? down_read_killable+0xc1/0x110
[ 60.528530][ T185] ? down_read_interruptible+0x110/0x110
[ 60.538040][ T185] ? fsnotify_perm+0x40b/0x5b0
[ 60.545232][ T185] ? security_file_permission+0x83/0xa0
[ 60.555708][ T185] iterate_dir+0x25c/0x600
[ 60.560604][ T185] ? ext4_dir_llseek+0x4b0/0x4b0
[ 60.567332][ T185] __se_sys_getdents64+0xf2/0x250
[ 60.573880][ T185] ? __x64_sys_getdents64+0x90/0x90
[ 60.579741][ T185] ? filldir+0x660/0x660
[ 60.584016][ T185] ? __se_sys_chdir+0x1af/0x280
[ 60.589141][ T185] ? debug_smp_processor_id+0x17/0x20
[ 60.594625][ T185] __x64_sys_getdents64+0x7b/0x90
[ 60.600170][ T185] x64_sys_call+0x592/0x9a0
[ 60.604669][ T185] do_syscall_64+0x4c/0xa0
[ 60.609538][ T185] ? clear_bhb_loop+0x50/0xa0
[ 60.614223][ T185] ? clear_bhb_loop+0x50/0xa0
[ 60.619300][ T185] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 60.625379][ T185] RIP: 0033:0x7f1bd9134d23
[ 60.629797][ T185] Code: 8b 05 d9 00 10 00 64 c7 00 16 00 00 00 31 c0 eb b0 66 0f 1f 44 00 00 b8 ff ff ff 7f 48 39 c2 48 0f 47 d0 b8 d9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 8b 15 a1 00 10 00 f7 d8
[ 60.649784][ T185] RSP: 002b:00007ffffcddb2b8 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9
[ 60.658206][ T185] RAX: ffffffffffffffda RBX: 00005618ca0c14e0 RCX: 00007f1bd9134d23
[ 60.666186][ T185] RDX: 0000000000008000 RSI: 00005618ca0c1510 RDI: 0000000000000004
[ 60.674382][ T185] RBP: 00005618ca0c14e4 R08: 00007f1bd9235ac0 R09: 0000000000000000
[ 60.682527][ T185] R10: 0000000000000004 R11: 0000000000000293 R12: 00005618ca0c1510
[ 60.690903][ T185] R13: ffffffffffffff88 R14: 0000000000000002 R15: 000000000000003c
[ 60.699151][ T185]
[ 60.702171][ T480] CPU: 0 PID: 480 Comm: kworker/u4:4 Not tainted syzkaller #0
[ 60.709733][ T480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 60.719803][ T480] Workqueue: wg-kex-wg1 wg_packet_handshake_send_worker
[ 60.726952][ T480] Call Trace:
[ 60.730237][ T480]
[ 60.733275][ T480] __dump_stack+0x21/0x30
[ 60.737719][ T480] dump_stack_lvl+0x110/0x170
[ 60.742393][ T480] ? show_regs_print_info+0x20/0x20
[ 60.748058][ T480] ? prandom_u32+0x24d/0x290
[ 60.752712][ T480] dump_stack+0x15/0x20
[ 60.757054][ T480] should_fail+0x3ab/0x500
[ 60.761581][ T480] __should_failslab+0xa4/0xe0
[ 60.766450][ T480] should_failslab+0x9/0x20
[ 60.771105][ T480] slab_pre_alloc_hook+0x39/0xd0
[ 60.776145][ T480] ? __alloc_skb+0xe4/0x730
[ 60.780663][ T480] kmem_cache_alloc+0x44/0x260
[ 60.786037][ T480] __alloc_skb+0xe4/0x730
[ 60.790515][ T480] wg_socket_send_buffer_to_peer+0x37/0x170
[ 60.796466][ T480] ? ktime_get_coarse_with_offset+0x153/0x1a0
[ 60.802737][ T480] wg_packet_handshake_send_worker+0x200/0x290
[ 60.809107][ T480] ? wg_prev_queue_dequeue+0x230/0x230
[ 60.814885][ T480] ? __schedule+0xbd7/0x14a0
[ 60.819495][ T480] process_one_work+0x6c8/0xbb0
[ 60.824393][ T480] worker_thread+0xaa0/0x1250
[ 60.829612][ T480] ? __kasan_check_read+0x11/0x20
[ 60.834761][ T480] kthread+0x3f5/0x4f0
[ 60.838844][ T480] ? worker_clr_flags+0x190/0x190
[ 60.843965][ T480] ? kthread_blkcg+0xd0/0xd0
[ 60.849202][ T480] ret_from_fork+0x1f/0x30
[ 60.853937][ T480]
[ 60.857244][ T26] CPU: 1 PID: 26 Comm: kworker/1:0 Not tainted syzkaller #0
[ 60.864830][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 60.875060][ T26] Workqueue: mld mld_ifc_work
[ 60.879835][ T26] Call Trace:
[ 60.883120][ T26]
[ 60.886140][ T26] __dump_stack+0x21/0x30
[ 60.891094][ T26] dump_stack_lvl+0x110/0x170
[ 60.896112][ T26] ? show_regs_print_info+0x20/0x20
[ 60.901309][ T26] dump_stack+0x15/0x20
[ 60.905468][ T26] should_fail+0x3ab/0x500
[ 60.910022][ T26] __should_failslab+0xa4/0xe0
[ 60.914955][ T26] should_failslab+0x9/0x20
[ 60.919952][ T26] slab_pre_alloc_hook+0x39/0xd0
[ 60.925372][ T26] ? __alloc_skb+0xe4/0x730
[ 60.930071][ T26] kmem_cache_alloc+0x44/0x260
[ 60.934894][ T26] __alloc_skb+0xe4/0x730
[ 60.940033][ T26] mld_newpack+0x143/0x9e0
[ 60.944737][ T26] ? mld_sendpack+0xba0/0xba0
[ 60.949787][ T26] ? add_grec+0x1340/0x1340
[ 60.954330][ T26] ? add_grec+0xf70/0x1340
[ 60.958946][ T26] add_grec+0xee8/0x1340
[ 60.963715][ T26] ? wait_for_completion_killable_timeout+0x10/0x10
[ 60.971115][ T26] mld_ifc_work+0x728/0xc40
[ 60.976229][ T26] process_one_work+0x6c8/0xbb0
[ 60.981417][ T26] worker_thread+0xaa0/0x1250
[ 60.986483][ T26] kthread+0x3f5/0x4f0
[ 60.990769][ T26] ? worker_clr_flags+0x190/0x190
[ 60.996336][ T26] ? kthread_blkcg+0xd0/0xd0
[ 61.001036][ T26] ret_from_fork+0x1f/0x30
[ 61.005768][ T26]
[ 61.009244][ T90] CPU: 0 PID: 90 Comm: klogd Not tainted syzkaller #0
[ 61.017370][ T90] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 61.030071][ T90] Call Trace:
[ 61.033418][ T90]
[ 61.036799][ T90] __dump_stack+0x21/0x30
[ 61.042096][ T90] dump_stack_lvl+0x110/0x170
[ 61.047956][ T90] ? show_regs_print_info+0x20/0x20
[ 61.053730][ T90] ? prandom_u32+0x24d/0x290
[ 61.058885][ T90] dump_stack+0x15/0x20
[ 61.063240][ T90] should_fail+0x3ab/0x500
[ 61.069802][ T90] __should_failslab+0xa4/0xe0
[ 61.075380][ T90] should_failslab+0x9/0x20
[ 61.081729][ T90] slab_pre_alloc_hook+0x39/0xd0
[ 61.089537][ T90] ? __alloc_skb+0xe4/0x730
[ 61.094821][ T90] kmem_cache_alloc+0x44/0x260
[ 61.100451][ T90] __alloc_skb+0xe4/0x730
[ 61.106124][ T90] alloc_skb_with_frags+0xa8/0x620
[ 61.111913][ T90] ? memcpy+0x56/0x70
[ 61.117714][ T90] sock_alloc_send_pskb+0x87f/0x9a0
[ 61.123111][ T90] ? sock_kzfree_s+0x60/0x60
[ 61.128151][ T90] ? __kasan_check_write+0x14/0x20
[ 61.133456][ T90] ? _raw_spin_lock+0x94/0xf0
[ 61.138421][ T90] ? _raw_spin_trylock_bh+0x150/0x150
[ 61.144989][ T90] unix_dgram_sendmsg+0x6f3/0x19b0
[ 61.151080][ T90] ? unix_dgram_poll+0x6c0/0x6c0
[ 61.156343][ T90] ? security_socket_sendmsg+0x82/0xa0
[ 61.162694][ T90] __sys_sendto+0x46d/0x620
[ 61.168119][ T90] ? __ia32_sys_getpeername+0x90/0x90
[ 61.170851][ T26] FAULT_INJECTION: forcing a failure.
[ 61.170851][ T26] name failslab, interval 1, probability 10, space 0, times 50
[ 61.173958][ T90] __x64_sys_sendto+0xe5/0x100
[ 61.193315][ T90] x64_sys_call+0x178/0x9a0
[ 61.197838][ T90] do_syscall_64+0x4c/0xa0
[ 61.202244][ T90] ? clear_bhb_loop+0x50/0xa0
[ 61.207023][ T90] ? clear_bhb_loop+0x50/0xa0
[ 61.210850][ T101] udevd[101]: could not touch /run/udev/queue: Cannot allocate memory
[ 61.211789][ T90] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 61.229790][ T90] RIP: 0033:0x7fe49a601407
[ 61.236325][ T90] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
[ 61.261923][ T90] RSP: 002b:00007ffcdc441560 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 61.271909][ T90] RAX: ffffffffffffffda RBX: 00007fe49a4b1c80 RCX: 00007fe49a601407
[ 61.285229][ T90] RDX: 000000000000004b RSI: 00007ffcdc4416a0 RDI: 0000000000000003
[ 61.297066][ T90] RBP: 00007ffcdc441ad0 R08: 0000000000000000 R09: 0000000000000000
[ 61.309527][ T90] R10: 0000000000004000 R11: 0000000000000202 R12: 00007ffcdc441ae8
[ 61.321137][ T90] R13: 00007ffcdc4416a0 R14: 0000000000000030 R15: 00007ffcdc4416a0
[ 61.331136][ T90]
[ 61.334517][ T473] CPU: 1 PID: 473 Comm: syz-executor Not tainted syzkaller #0
[ 61.344028][ T473] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 61.359709][ T473] Call Trace:
[ 61.363166][ T473]
[ 61.367304][ T473] __dump_stack+0x21/0x30
[ 61.373881][ T473] dump_stack_lvl+0x110/0x170
[ 61.379235][ T473] ? show_regs_print_info+0x20/0x20
[ 61.385037][ T473] ? prandom_u32+0x24d/0x290
[ 61.389878][ T473] dump_stack+0x15/0x20
[ 61.395122][ T473] should_fail+0x3ab/0x500
[ 61.400409][ T473] __should_failslab+0xa4/0xe0
[ 61.406408][ T473] should_failslab+0x9/0x20
[ 61.411748][ T473] slab_pre_alloc_hook+0x39/0xd0
[ 61.417553][ T473] __kmalloc+0x6d/0x2c0
[ 61.422418][ T473] ? kobject_get_path+0xbf/0x1f0
[ 61.428376][ T473] kobject_get_path+0xbf/0x1f0
[ 61.433790][ T473] kobject_uevent_env+0x28a/0x700
[ 61.439952][ T473] kobject_uevent+0x1d/0x30
[ 61.445370][ T473] device_del+0xcb3/0xe20
[ 61.451717][ T473] ? __kasan_check_write+0x14/0x20
[ 61.457733][ T473] ? kill_device+0xd0/0xd0
[ 61.464142][ T473] ? dynamic_kobj_release+0x20/0x20
[ 61.470676][ T473] ? pm_runtime_set_memalloc_noio+0x20d/0x260
[ 61.477134][ T473] netdev_unregister_kobject+0x17b/0x260
[ 61.484447][ T473] unregister_netdevice_many+0x14e4/0x1a00
[ 61.490590][ T473] ? alloc_netdev_mqs+0xe20/0xe20
[ 61.495840][ T473] ? __queue_delayed_work+0x188/0x200
[ 61.501655][ T473] ? __kasan_check_read+0x11/0x20
[ 61.506767][ T473] unregister_netdevice_queue+0x2e1/0x320
[ 61.512569][ T473] ? __kasan_check_read+0x11/0x20
[ 61.518055][ T473] ? linkwatch_urgent_event+0x34d/0x460
[ 61.523991][ T473] ? list_netdevice+0x4c0/0x4c0
[ 61.529267][ T473] __tun_detach+0xc9d/0x1450
[ 61.534190][ T473] tun_chr_close+0x92/0x140
[ 61.539123][ T473] ? tun_chr_open+0x540/0x540
[ 61.545710][ T473] __fput+0x22b/0x900
[ 61.550151][ T473] ____fput+0x15/0x20
[ 61.554423][ T473] task_work_run+0x127/0x190
[ 61.559120][ T473] do_exit+0xb70/0x29a0
[ 61.563949][ T473] ? put_task_struct+0x90/0x90
[ 61.569448][ T473] ? __fdget_pos+0x1f7/0x380
[ 61.575482][ T473] ? ksys_write+0x1eb/0x260
[ 61.580100][ T473] ? __ia32_sys_read+0x90/0x90
[ 61.584985][ T473] do_group_exit+0x149/0x310
[ 61.590994][ T473] __x64_sys_exit_group+0x3f/0x40
[ 61.596605][ T473] x64_sys_call+0x832/0x9a0
[ 61.601114][ T473] do_syscall_64+0x4c/0xa0
[ 61.605609][ T473] ? clear_bhb_loop+0x50/0xa0
[ 61.610361][ T473] ? clear_bhb_loop+0x50/0xa0
[ 61.615045][ T473] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 61.621154][ T473] RIP: 0033:0x7f51ec7b9e99
[ 61.625557][ T473] Code: Unable to access opcode bytes at RIP 0x7f51ec7b9e6f.
[ 61.632925][ T473] RSP: 002b:00007ffdc30eec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 61.641596][ T473] RAX: ffffffffffffffda RBX: 00007f51ec84f316 RCX: 00007f51ec7b9e99
[ 61.650322][ T473] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
[ 61.658414][ T473] RBP: 000000000000000c R08: 0000000000000000 R09: 00007f51ec84f30a
[ 61.666511][ T473] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdc30efed0
[ 61.675186][ T473] R13: 00007f51ec84f30a R14: 0000000000009898 R15: 00007ffdc30eff10
[ 61.683336][ T473]
[ 61.687582][ T64] CPU: 0 PID: 64 Comm: jbd2/sda1-8 Not tainted syzkaller #0
[ 61.695158][ T64] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 61.707013][ T64] Call Trace:
[ 61.710384][ T64]
[ 61.713526][ T64] __dump_stack+0x21/0x30
[ 61.718106][ T64] dump_stack_lvl+0x110/0x170
[ 61.722986][ T64] ? show_regs_print_info+0x20/0x20
[ 61.728607][ T64] ? prandom_u32+0x24d/0x290
[ 61.733689][ T64] dump_stack+0x15/0x20
[ 61.737947][ T64] should_fail+0x3ab/0x500
[ 61.742695][ T64] __should_failslab+0xa4/0xe0
[ 61.747709][ T64] should_failslab+0x9/0x20
[ 61.752606][ T64] slab_pre_alloc_hook+0x39/0xd0
[ 61.757572][ T64] ? mempool_alloc_slab+0x1d/0x30
[ 61.762813][ T64] kmem_cache_alloc+0x44/0x260
[ 61.767677][ T64] ? submit_bio_noacct+0x762/0x800
[ 61.772901][ T64] ? mempool_free+0x330/0x330
[ 61.777684][ T64] mempool_alloc_slab+0x1d/0x30
[ 61.782616][ T64] mempool_alloc+0x167/0x4c0
[ 61.787206][ T64] ? chksum_update+0x47/0xa0
[ 61.791980][ T64] ? fscrypt_set_bio_crypt_ctx+0x179/0x4f0
[ 61.798006][ T64] ? crypto_shash_update+0x216/0x300
[ 61.803296][ T64] ? mempool_resize+0x880/0x880
[ 61.808406][ T64] ? blkcg_set_ioprio+0x1f6/0x320
[ 61.813790][ T64] ? submit_bio+0x367/0x620
[ 61.818297][ T64] ? submit_bio_noacct+0x800/0x800
[ 61.823424][ T64] bio_alloc_bioset+0x124/0x910
[ 61.828279][ T64] submit_bh_wbc+0x1c2/0x680
[ 61.833046][ T64] submit_bh+0x2a/0x40
[ 61.837146][ T64] jbd2_journal_commit_transaction+0x2461/0x5650
[ 61.843573][ T64] ? jbd2_journal_finish_inode_data_buffers+0xb0/0xb0
[ 61.850433][ T64] ? __switch_to+0x56c/0x1070
[ 61.855315][ T64] ? compat_start_thread+0x20/0x20
[ 61.860856][ T64] ? _raw_spin_unlock+0x4d/0x70
[ 61.865812][ T64] ? _raw_spin_lock+0xf0/0xf0
[ 61.870591][ T64] ? __kasan_check_write+0x14/0x20
[ 61.875868][ T64] ? _raw_spin_lock_irqsave+0xc2/0x130
[ 61.881324][ T64] ? _raw_spin_lock+0xf0/0xf0
[ 61.886006][ T64] ? detach_if_pending+0xf5/0x300
[ 61.891036][ T64] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 61.897020][ T64] ? del_timer_sync+0x144/0x1a0
[ 61.901999][ T64] kjournald2+0x43d/0x860
[ 61.906600][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0
[ 61.911983][ T64] ? io_schedule+0xe0/0xe0
[ 61.916412][ T64] ? __kasan_check_read+0x11/0x20
[ 61.921536][ T64] ? __kthread_parkme+0xab/0x1f0
[ 61.926649][ T64] kthread+0x3f5/0x4f0
[ 61.930709][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0
[ 61.931214][ T90] FAULT_INJECTION: forcing a failure.
[ 61.931214][ T90] name failslab, interval 1, probability 10, space 0, times 47
[ 61.935899][ T64] ? kthread_blkcg+0xd0/0xd0
[ 61.953520][ T64] ret_from_fork+0x1f/0x30
[ 61.957932][ T64]
[ 61.961054][ T26] CPU: 1 PID: 26 Comm: kworker/1:0 Not tainted syzkaller #0
[ 61.961225][ C0] FAULT_INJECTION: forcing a failure.
[ 61.961225][ C0] name failslab, interval 1, probability 10, space 0, times 47
[ 61.968535][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 61.992018][ T26] Workqueue: mld mld_ifc_work
[ 61.997508][ T26] Call Trace:
[ 62.000798][ T26]
[ 62.003719][ T26] __dump_stack+0x21/0x30
[ 62.008047][ T26] dump_stack_lvl+0x110/0x170
[ 62.012797][ T26] ? show_regs_print_info+0x20/0x20
[ 62.018071][ T26] ? prandom_u32+0x24d/0x290
[ 62.022659][ T26] dump_stack+0x15/0x20
[ 62.026811][ T26] should_fail+0x3ab/0x500
[ 62.031395][ T26] ? mld_newpack+0x143/0x9e0
[ 62.035987][ T26] __should_failslab+0xa4/0xe0
[ 62.040762][ T26] should_failslab+0x9/0x20
[ 62.045283][ T26] slab_pre_alloc_hook+0x39/0xd0
[ 62.050657][ T26] ? mld_newpack+0x143/0x9e0
[ 62.055259][ T26] ? mld_newpack+0x143/0x9e0
[ 62.059931][ T26] __kmalloc_track_caller+0x6c/0x2c0
[ 62.065384][ T26] ? mld_newpack+0x143/0x9e0
[ 62.070062][ T26] ? mld_newpack+0x143/0x9e0
[ 62.074663][ T26] __alloc_skb+0x210/0x730
[ 62.079073][ T26] mld_newpack+0x143/0x9e0
[ 62.083484][ T26] ? mld_sendpack+0xba0/0xba0
[ 62.088154][ T26] ? add_grec+0x1340/0x1340
[ 62.092647][ T26] ? add_grec+0xf70/0x1340
[ 62.097163][ T26] add_grec+0xee8/0x1340
[ 62.101395][ T26] ? wait_for_completion_killable_timeout+0x10/0x10
[ 62.107986][ T26] mld_ifc_work+0x728/0xc40
[ 62.112655][ T26] process_one_work+0x6c8/0xbb0
[ 62.117499][ T26] worker_thread+0xaa0/0x1250
[ 62.122178][ T26] kthread+0x3f5/0x4f0
[ 62.126252][ T26] ? worker_clr_flags+0x190/0x190
[ 62.131472][ T26] ? kthread_blkcg+0xd0/0xd0
[ 62.136376][ T26] ret_from_fork+0x1f/0x30
[ 62.140827][ T26]
[ 62.143927][ C0] CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted syzkaller #0
[ 62.151500][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 62.162030][ C0] Call Trace:
[ 62.165392][ C0]
[ 62.168400][ C0] __dump_stack+0x21/0x30
[ 62.172776][ C0] dump_stack_lvl+0x110/0x170
[ 62.177822][ C0] ? show_regs_print_info+0x20/0x20
[ 62.183045][ C0] dump_stack+0x15/0x20
[ 62.187281][ C0] should_fail+0x3ab/0x500
[ 62.191791][ C0] __should_failslab+0xa4/0xe0
[ 62.197054][ C0] should_failslab+0x9/0x20
[ 62.201572][ C0] slab_pre_alloc_hook+0x39/0xd0
[ 62.206516][ C0] ? __alloc_skb+0xe4/0x730
[ 62.211188][ C0] kmem_cache_alloc+0x44/0x260
[ 62.216311][ C0] __alloc_skb+0xe4/0x730
[ 62.220739][ C0] arp_create+0xe8/0x7f0
[ 62.225067][ C0] arp_send_dst+0x8c/0x280
[ 62.229472][ C0] arp_process+0x153f/0x1bc0
[ 62.234403][ C0] ? arp_error_report+0xc0/0xc0
[ 62.239425][ C0] ? packet_sock_destruct+0x160/0x160
[ 62.244992][ C0] ? __netif_receive_skb_core+0x2962/0x2fb0
[ 62.251345][ C0] ? arp_error_report+0xc0/0xc0
[ 62.256637][ C0] NF_HOOK+0x169/0x1c0
[ 62.260713][ C0] ? arp_error_report+0xc0/0xc0
[ 62.265575][ C0] ? arp_xmit+0x1f0/0x1f0
[ 62.270087][ C0] ? set_rps_cpu+0x5d0/0x5d0
[ 62.274983][ C0] arp_rcv+0x2ef/0x480
[ 62.279071][ C0] ? arp_is_garp+0x160/0x160
[ 62.283656][ C0] __netif_receive_skb_list_core+0x704/0x770
[ 62.290190][ C0] ? __netif_receive_skb+0x280/0x280
[ 62.296748][ C0] ? receive_buf+0x2ec5/0x4bc0
[ 62.301698][ C0] netif_receive_skb_list_internal+0x7f8/0xaa0
[ 62.307954][ C0] ? netif_receive_skb_list+0x2a0/0x2a0
[ 62.313671][ C0] ? virtqueue_get_buf_ctx+0x4a2/0xf60
[ 62.319124][ C0] ? detach_buf_split+0x88d/0xa90
[ 62.324403][ C0] napi_complete_done+0x375/0x7a0
[ 62.329427][ C0] ? __napi_schedule_irqoff+0x230/0x230
[ 62.331103][ T26] FAULT_INJECTION: forcing a failure.
[ 62.331103][ T26] name failslab, interval 1, probability 10, space 0, times 45
[ 62.335335][ C0] ? virtqueue_get_buf_ctx+0x4a2/0xf60
[ 62.353611][ C0] ? virtqueue_enable_cb_prepare+0x235/0x570
[ 62.360106][ C0] virtnet_poll+0x8f4/0xe90
[ 62.364739][ C0] ? refill_work+0x220/0x220
[ 62.369636][ C0] __napi_poll+0xbb/0x580
[ 62.374142][ C0] net_rx_action+0x37f/0x910
[ 62.378748][ C0] ? net_tx_action+0x520/0x520
[ 62.383501][ C0] ? __schedule+0xbd7/0x14a0
[ 62.388076][ C0] ? irqtime_account_irq+0x76/0x390
[ 62.393589][ C0] handle_softirqs+0x250/0x560
[ 62.398446][ C0] ? ksoftirqd_should_run+0x20/0x20
[ 62.403640][ C0] run_ksoftirqd+0x28/0x40
[ 62.408499][ C0] smpboot_thread_fn+0x446/0x880
[ 62.414082][ C0] kthread+0x3f5/0x4f0
[ 62.418422][ C0] ? cpu_report_death+0x1b0/0x1b0
[ 62.424007][ C0] ? kthread_blkcg+0xd0/0xd0
[ 62.431202][ C0] ret_from_fork+0x1f/0x30
[ 62.438002][ C0]
[ 62.444174][ T26] CPU: 1 PID: 26 Comm: kworker/1:0 Not tainted syzkaller #0
[ 62.456746][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 62.470358][ T26] Workqueue: mld mld_ifc_work
[ 62.475507][ T26] Call Trace:
[ 62.479381][ T26]
[ 62.482772][ T26] __dump_stack+0x21/0x30
[ 62.488131][ T26] dump_stack_lvl+0x110/0x170
[ 62.493636][ T26] ? show_regs_print_info+0x20/0x20
[ 62.499051][ T26] ? prandom_u32+0x24d/0x290
[ 62.503654][ T26] dump_stack+0x15/0x20
[ 62.507902][ T26] should_fail+0x3ab/0x500
[ 62.512403][ T26] __should_failslab+0xa4/0xe0
[ 62.517445][ T26] should_failslab+0x9/0x20
[ 62.522028][ T26] slab_pre_alloc_hook+0x39/0xd0
[ 62.527497][ T26] kmem_cache_alloc_trace+0x48/0x270
[ 62.533085][ T26] ? dst_cow_metrics_generic+0x55/0x1c0
[ 62.539228][ T26] dst_cow_metrics_generic+0x55/0x1c0
[ 62.545324][ T26] icmp6_dst_alloc+0x35f/0x520
[ 62.550281][ T26] mld_sendpack+0x4d9/0xba0
[ 62.554953][ T26] ? add_grec+0x1340/0x1340
[ 62.559457][ T26] ? add_grec+0xf70/0x1340
[ 62.563897][ T26] ? memcpy+0x56/0x70
[ 62.568138][ T26] ? wait_for_completion_killable_timeout+0x10/0x10
[ 62.574807][ T26] mld_ifc_work+0x7d7/0xc40
[ 62.579409][ T26] ? _raw_spin_lock_irqsave+0x130/0x130
[ 62.585258][ T26] ? round_jiffies_relative+0xd5/0xf0
[ 62.590634][ T26] process_one_work+0x6c8/0xbb0
[ 62.595490][ T26] worker_thread+0xaa0/0x1250
[ 62.600176][ T26] kthread+0x3f5/0x4f0
[ 62.604321][ T26] ? worker_clr_flags+0x190/0x190
[ 62.609589][ T26] ? kthread_blkcg+0xd0/0xd0
[ 62.614167][ T26] ret_from_fork+0x1f/0x30
[ 62.619121][ T26]
[ 62.622232][ T6] CPU: 0 PID: 6 Comm: kworker/0:0 Not tainted syzkaller #0
[ 62.629957][ T6] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 62.640444][ T6] Workqueue: mld mld_ifc_work
[ 62.645640][ T6] Call Trace:
[ 62.649258][ T6]
[ 62.652505][ T6] __dump_stack+0x21/0x30
[ 62.656867][ T6] dump_stack_lvl+0x110/0x170
[ 62.661658][ T6] ? show_regs_print_info+0x20/0x20
[ 62.667107][ T6] ? prandom_u32+0x24d/0x290
[ 62.671709][ T6] dump_stack+0x15/0x20
[ 62.675943][ T6] should_fail+0x3ab/0x500
[ 62.680798][ T6] ? mld_newpack+0x143/0x9e0
[ 62.685731][ T6] __should_failslab+0xa4/0xe0
[ 62.690634][ T6] should_failslab+0x9/0x20
[ 62.695300][ T6] slab_pre_alloc_hook+0x39/0xd0
[ 62.700427][ T6] ? mld_newpack+0x143/0x9e0
[ 62.705044][ T6] ? mld_newpack+0x143/0x9e0
[ 62.709716][ T6] __kmalloc_track_caller+0x6c/0x2c0
[ 62.715099][ T6] ? mld_newpack+0x143/0x9e0
[ 62.719784][ T6] ? mld_newpack+0x143/0x9e0
[ 62.724474][ T6] __alloc_skb+0x210/0x730
[ 62.728985][ T6] mld_newpack+0x143/0x9e0
[ 62.733575][ T6] ? __mod_timer+0x7c0/0xb40
[ 62.739465][ T6] ? mld_sendpack+0xba0/0xba0
[ 62.744662][ T6] add_grec+0xee8/0x1340
[ 62.748892][ T6] ? wait_for_completion_killable_timeout+0x10/0x10
[ 62.755641][ T6] ? __kasan_check_write+0x14/0x20
[ 62.760747][ T6] mld_ifc_work+0x728/0xc40
[ 62.765652][ T6] ? _raw_spin_lock_irqsave+0x130/0x130
[ 62.771443][ T6] process_one_work+0x6c8/0xbb0
[ 62.776634][ T6] worker_thread+0xaa0/0x1250
[ 62.782207][ T6] kthread+0x3f5/0x4f0
[ 62.789763][ T6] ? worker_clr_flags+0x190/0x190
[ 62.794999][ T6] ? kthread_blkcg+0xd0/0xd0
[ 62.799686][ T6] ret_from_fork+0x1f/0x30
[ 62.804249][ T6]
[ 62.807481][ T90] CPU: 1 PID: 90 Comm: klogd Not tainted syzkaller #0
[ 62.807555][ T64] FAULT_INJECTION: forcing a failure.
[ 62.807555][ T64] name failslab, interval 1, probability 10, space 0, times 43
[ 62.814600][ T90] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 62.814611][ T90] Call Trace:
[ 62.814617][ T90]
[ 62.814624][ T90] __dump_stack+0x21/0x30
[ 62.848764][ T90] dump_stack_lvl+0x110/0x170
[ 62.853537][ T90] ? show_regs_print_info+0x20/0x20
[ 62.859172][ T90] ? prandom_u32+0x24d/0x290
[ 62.863780][ T90] dump_stack+0x15/0x20
[ 62.868192][ T90] should_fail+0x3ab/0x500
[ 62.872603][ T90] ? alloc_skb_with_frags+0xa8/0x620
[ 62.877965][ T90] __should_failslab+0xa4/0xe0
[ 62.882723][ T90] should_failslab+0x9/0x20
[ 62.887219][ T90] slab_pre_alloc_hook+0x39/0xd0
[ 62.892252][ T90] ? alloc_skb_with_frags+0xa8/0x620
[ 62.897645][ T90] ? alloc_skb_with_frags+0xa8/0x620
[ 62.901998][ T60] FAULT_INJECTION: forcing a failure.
[ 62.901998][ T60] name failslab, interval 1, probability 10, space 0, times 42
[ 62.902962][ T90] __kmalloc_track_caller+0x6c/0x2c0
[ 62.921251][ T90] ? alloc_skb_with_frags+0xa8/0x620
[ 62.926635][ T90] ? alloc_skb_with_frags+0xa8/0x620
[ 62.933151][ T90] __alloc_skb+0x210/0x730
[ 62.937730][ T90] alloc_skb_with_frags+0xa8/0x620
[ 62.943273][ T90] ? memcpy+0x56/0x70
[ 62.947339][ T90] sock_alloc_send_pskb+0x87f/0x9a0
[ 62.952811][ T90] ? sock_kzfree_s+0x60/0x60
[ 62.957412][ T90] ? __kasan_check_write+0x14/0x20
[ 62.962527][ T90] ? _raw_spin_lock+0x94/0xf0
[ 62.967697][ T90] ? _raw_spin_trylock_bh+0x150/0x150
[ 62.973880][ T90] unix_dgram_sendmsg+0x6f3/0x19b0
[ 62.979011][ T90] ? unix_dgram_poll+0x6c0/0x6c0
[ 62.984034][ T90] ? path_put+0x57/0x60
[ 62.988444][ T90] ? security_socket_sendmsg+0x82/0xa0
[ 62.993997][ T90] __sys_sendto+0x46d/0x620
[ 62.998673][ T90] ? __ia32_sys_getpeername+0x90/0x90
[ 63.004056][ T90] ? __kasan_check_write+0x14/0x20
[ 63.009291][ T90] __x64_sys_sendto+0xe5/0x100
[ 63.014061][ T90] x64_sys_call+0x178/0x9a0
[ 63.018590][ T90] do_syscall_64+0x4c/0xa0
[ 63.023152][ T90] ? clear_bhb_loop+0x50/0xa0
[ 63.027921][ T90] ? clear_bhb_loop+0x50/0xa0
[ 63.032954][ T90] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 63.039454][ T90] RIP: 0033:0x7fe49a601407
[ 63.043978][ T90] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
[ 63.064891][ T90] RSP: 002b:00007ffcdc441560 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 63.073387][ T90] RAX: ffffffffffffffda RBX: 00007fe49a4b1c80 RCX: 00007fe49a601407
[ 63.081790][ T90] RDX: 000000000000004a RSI: 00007ffcdc4416a0 RDI: 0000000000000003
[ 63.090269][ T90] RBP: 00007ffcdc441ad0 R08: 0000000000000000 R09: 0000000000000000
[ 63.098850][ T90] R10: 0000000000004000 R11: 0000000000000202 R12: 00007ffcdc441ae8
[ 63.107068][ T90] R13: 00007ffcdc4416a0 R14: 000000000000002f R15: 00007ffcdc4416a0
[ 63.115587][ T90]
[ 63.118613][ T60] CPU: 0 PID: 60 Comm: kworker/0:2 Not tainted syzkaller #0
[ 63.126004][ T60] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 63.137013][ T60] Workqueue: mld mld_ifc_work
[ 63.141721][ T60] Call Trace:
[ 63.145244][ T60]
[ 63.148250][ T60] __dump_stack+0x21/0x30
[ 63.152581][ T60] dump_stack_lvl+0x110/0x170
[ 63.157272][ T60] ? show_regs_print_info+0x20/0x20
[ 63.162474][ T60] ? prandom_u32+0x24d/0x290
[ 63.167426][ T60] dump_stack+0x15/0x20
[ 63.171658][ T60] should_fail+0x3ab/0x500
[ 63.176233][ T60] __should_failslab+0xa4/0xe0
[ 63.180991][ T60] should_failslab+0x9/0x20
[ 63.185688][ T60] slab_pre_alloc_hook+0x39/0xd0
[ 63.190954][ T60] kmem_cache_alloc_trace+0x48/0x270
[ 63.197059][ T60] ? dst_cow_metrics_generic+0x55/0x1c0
[ 63.202782][ T60] dst_cow_metrics_generic+0x55/0x1c0
[ 63.208262][ T60] icmp6_dst_alloc+0x35f/0x520
[ 63.213201][ T60] mld_sendpack+0x4d9/0xba0
[ 63.217800][ T60] ? add_grec+0x1340/0x1340
[ 63.222652][ T60] ? add_grec+0xf70/0x1340
[ 63.227152][ T60] ? memcpy+0x56/0x70
[ 63.231226][ T60] ? wait_for_completion_killable_timeout+0x10/0x10
[ 63.237914][ T60] mld_ifc_work+0x7d7/0xc40
[ 63.242576][ T60] process_one_work+0x6c8/0xbb0
[ 63.247577][ T60] worker_thread+0xaa0/0x1250
[ 63.253264][ T60] ? __kasan_check_read+0x11/0x20
[ 63.258482][ T60] kthread+0x3f5/0x4f0
[ 63.262752][ T60] ? worker_clr_flags+0x190/0x190
[ 63.267769][ T60] ? kthread_blkcg+0xd0/0xd0
[ 63.272428][ T60] ret_from_fork+0x1f/0x30
[ 63.276830][ T60]
[ 63.280024][ T311] FAULT_INJECTION: forcing a failure.
[ 63.280024][ T311] name failslab, interval 1, probability 10, space 0, times 41
[ 63.280225][ T480] FAULT_INJECTION: forcing a failure.
[ 63.280225][ T480] name failslab, interval 1, probability 10, space 0, times 41
[ 63.306646][ T26] FAULT_INJECTION: forcing a failure.
[ 63.306646][ T26] name failslab, interval 1, probability 10, space 0, times 41
[ 63.306737][ T64] CPU: 0 PID: 64 Comm: jbd2/sda1-8 Not tainted syzkaller #0
[ 63.326979][ T64] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 63.337256][ T64] Call Trace:
[ 63.340524][ T64]
[ 63.343630][ T64] __dump_stack+0x21/0x30
[ 63.348125][ T64] dump_stack_lvl+0x110/0x170
[ 63.352795][ T64] ? show_regs_print_info+0x20/0x20
[ 63.357986][ T64] ? prandom_u32+0x24d/0x290
[ 63.362681][ T64] dump_stack+0x15/0x20
[ 63.367123][ T64] should_fail+0x3ab/0x500
[ 63.371531][ T64] __should_failslab+0xa4/0xe0
[ 63.376300][ T64] should_failslab+0x9/0x20
[ 63.380802][ T64] slab_pre_alloc_hook+0x39/0xd0
[ 63.385847][ T64] ? mempool_alloc_slab+0x1d/0x30
[ 63.391066][ T64] kmem_cache_alloc+0x44/0x260
[ 63.395829][ T64] ? submit_bio_noacct+0x762/0x800
[ 63.401224][ T64] ? mempool_free+0x330/0x330
[ 63.406173][ T64] mempool_alloc_slab+0x1d/0x30
[ 63.411681][ T64] mempool_alloc+0x167/0x4c0
[ 63.416308][ T64] ? chksum_update+0x47/0xa0
[ 63.421400][ T64] ? fscrypt_set_bio_crypt_ctx+0x179/0x4f0
[ 63.427420][ T64] ? crypto_shash_update+0x216/0x300
[ 63.433167][ T64] ? mempool_resize+0x880/0x880
[ 63.438655][ T64] ? blkcg_set_ioprio+0x1f6/0x320
[ 63.444616][ T64] ? submit_bio+0x367/0x620
[ 63.449866][ T64] ? submit_bio_noacct+0x800/0x800
[ 63.455363][ T64] bio_alloc_bioset+0x124/0x910
[ 63.460578][ T64] submit_bh_wbc+0x1c2/0x680
[ 63.466325][ T64] submit_bh+0x2a/0x40
[ 63.470753][ T64] jbd2_journal_commit_transaction+0x2461/0x5650
[ 63.477092][ T64] ? jbd2_journal_finish_inode_data_buffers+0xb0/0xb0
[ 63.483846][ T64] ? __switch_to+0x56c/0x1070
[ 63.488636][ T64] ? compat_start_thread+0x20/0x20
[ 63.493841][ T64] ? _raw_spin_unlock+0x4d/0x70
[ 63.498707][ T64] ? _raw_spin_lock+0xf0/0xf0
[ 63.503389][ T64] ? __kasan_check_write+0x14/0x20
[ 63.508577][ T64] ? _raw_spin_lock_irqsave+0xc2/0x130
[ 63.514112][ T64] ? _raw_spin_lock+0xf0/0xf0
[ 63.518889][ T64] ? detach_if_pending+0xf5/0x300
[ 63.524075][ T64] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 63.529975][ T64] ? del_timer_sync+0x144/0x1a0
[ 63.534907][ T64] kjournald2+0x43d/0x860
[ 63.539413][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0
[ 63.545006][ T64] ? io_schedule+0xe0/0xe0
[ 63.549619][ T64] ? __kasan_check_read+0x11/0x20
[ 63.554816][ T64] ? __kthread_parkme+0xab/0x1f0
[ 63.560105][ T64] kthread+0x3f5/0x4f0
[ 63.564167][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0
[ 63.569799][ T64] ? kthread_blkcg+0xd0/0xd0
[ 63.574579][ T64] ret_from_fork+0x1f/0x30
[ 63.579019][ T64]
[ 63.582059][ T26] CPU: 1 PID: 26 Comm: kworker/1:0 Not tainted syzkaller #0
[ 63.582575][ T6] FAULT_INJECTION: forcing a failure.
[ 63.582575][ T6] name failslab, interval 1, probability 10, space 0, times 40
[ 63.589580][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 63.612573][ T26] Workqueue: mld mld_ifc_work
[ 63.617252][ T26] Call Trace:
[ 63.620729][ T26]
[ 63.623657][ T26] __dump_stack+0x21/0x30
[ 63.627980][ T26] dump_stack_lvl+0x110/0x170
[ 63.632741][ T26] ? show_regs_print_info+0x20/0x20
[ 63.638026][ T26] ? prandom_u32+0x24d/0x290
[ 63.642607][ T26] dump_stack+0x15/0x20
[ 63.647974][ T26] should_fail+0x3ab/0x500
[ 63.652513][ T26] __should_failslab+0xa4/0xe0
[ 63.657791][ T26] should_failslab+0x9/0x20
[ 63.662439][ T26] slab_pre_alloc_hook+0x39/0xd0
[ 63.667493][ T26] ? dst_alloc+0x15c/0x1d0
[ 63.672002][ T26] kmem_cache_alloc+0x44/0x260
[ 63.677026][ T26] ? ipv6_sysctl_rtcache_flush+0x100/0x100
[ 63.682910][ T26] dst_alloc+0x15c/0x1d0
[ 63.687349][ T26] icmp6_dst_alloc+0xec/0x520
[ 63.692114][ T26] ? security_sk_classify_flow+0x7b/0x90
[ 63.697928][ T26] ? icmpv6_flow_init+0xd2/0x130
[ 63.703058][ T26] mld_sendpack+0x4d9/0xba0
[ 63.707782][ T26] ? add_grec+0x1340/0x1340
[ 63.712314][ T26] ? add_grec+0xf70/0x1340
[ 63.716723][ T26] ? memcpy+0x56/0x70
[ 63.720701][ T26] ? wait_for_completion_killable_timeout+0x10/0x10
[ 63.727471][ T26] mld_ifc_work+0x7d7/0xc40
[ 63.731967][ T26] ? _raw_spin_lock_irqsave+0x130/0x130
[ 63.737700][ T26] process_one_work+0x6c8/0xbb0
[ 63.742654][ T26] worker_thread+0xaa0/0x1250
[ 63.747591][ T26] kthread+0x3f5/0x4f0
[ 63.751647][ T26] ? worker_clr_flags+0x190/0x190
[ 63.756663][ T26] ? kthread_blkcg+0xd0/0xd0
[ 63.761330][ T26] ret_from_fork+0x1f/0x30
[ 63.766029][ T26]
[ 63.769151][ T6] CPU: 0 PID: 6 Comm: kworker/0:0 Not tainted syzkaller #0
[ 63.776886][ T6] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 63.787399][ T6] Workqueue: mld mld_ifc_work
[ 63.792165][ T6] Call Trace:
[ 63.795431][ T6]
[ 63.798467][ T6] __dump_stack+0x21/0x30
[ 63.802889][ T6] dump_stack_lvl+0x110/0x170
[ 63.807704][ T6] ? show_regs_print_info+0x20/0x20
[ 63.812936][ T6] ? prandom_u32+0x24d/0x290
[ 63.817529][ T6] dump_stack+0x15/0x20
[ 63.821779][ T6] should_fail+0x3ab/0x500
[ 63.826762][ T6] __should_failslab+0xa4/0xe0
[ 63.831537][ T6] should_failslab+0x9/0x20
[ 63.836128][ T6] slab_pre_alloc_hook+0x39/0xd0
[ 63.841667][ T6] ? dst_alloc+0x15c/0x1d0
[ 63.846180][ T6] kmem_cache_alloc+0x44/0x260
[ 63.851231][ T6] ? ipv6_sysctl_rtcache_flush+0x100/0x100
[ 63.857027][ T6] dst_alloc+0x15c/0x1d0
[ 63.861274][ T6] icmp6_dst_alloc+0xec/0x520
[ 63.865945][ T6] ? security_sk_classify_flow+0x7b/0x90
[ 63.871745][ T6] ? icmpv6_flow_init+0xd2/0x130
[ 63.876886][ T6] mld_sendpack+0x4d9/0xba0
[ 63.881493][ T6] ? add_grec+0x1340/0x1340
[ 63.885997][ T6] ? add_grec+0xf70/0x1340
[ 63.890505][ T6] ? memcpy+0x56/0x70
[ 63.894518][ T6] ? wait_for_completion_killable_timeout+0x10/0x10
[ 63.901212][ T6] mld_ifc_work+0x7d7/0xc40
[ 63.905908][ T6] process_one_work+0x6c8/0xbb0
[ 63.910759][ T6] worker_thread+0xaa0/0x1250
[ 63.915463][ T6] kthread+0x3f5/0x4f0
[ 63.919609][ T6] ? worker_clr_flags+0x190/0x190
[ 63.924629][ T6] ? kthread_blkcg+0xd0/0xd0
[ 63.929344][ T6] ret_from_fork+0x1f/0x30
[ 63.934226][ T6]
[ 63.937401][ T311] CPU: 1 PID: 311 Comm: kworker/1:2 Not tainted syzkaller #0
[ 63.940800][ T64] FAULT_INJECTION: forcing a failure.
[ 63.940800][ T64] name failslab, interval 1, probability 10, space 0, times 38
[ 63.944955][ T311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 63.969396][ T311] Workqueue: 0x0 (wg-crypt-wg0)
[ 63.971099][ T90] FAULT_INJECTION: forcing a failure.
[ 63.971099][ T90] name failslab, interval 1, probability 10, space 0, times 37
[ 63.974727][ T311] Call Trace:
[ 63.974739][ T311]
[ 63.994998][ T311] __dump_stack+0x21/0x30
[ 63.999411][ T311] dump_stack_lvl+0x110/0x170
[ 64.004353][ T311] ? show_regs_print_info+0x20/0x20
[ 64.010440][ T311] ? prandom_u32+0x24d/0x290
[ 64.015504][ T311] dump_stack+0x15/0x20
[ 64.019828][ T311] should_fail+0x3ab/0x500
[ 64.024235][ T311] __should_failslab+0xa4/0xe0
[ 64.029000][ T311] should_failslab+0x9/0x20
[ 64.033763][ T311] slab_pre_alloc_hook+0x39/0xd0
[ 64.038994][ T311] kmem_cache_alloc_trace+0x48/0x270
[ 64.046112][ T311] ? __kthread_create_on_node+0x148/0x570
[ 64.052085][ T311] ? worker_clr_flags+0x190/0x190
[ 64.057304][ T311] __kthread_create_on_node+0x148/0x570
[ 64.063072][ T311] ? widen_string+0x42/0x360
[ 64.067856][ T311] ? kthread_create_on_node+0x140/0x140
[ 64.073566][ T311] ? vsnprintf+0x189d/0x1990
[ 64.078327][ T311] ? worker_clr_flags+0x190/0x190
[ 64.083428][ T311] ? worker_clr_flags+0x190/0x190
[ 64.088884][ T311] kthread_create_on_node+0xe8/0x140
[ 64.094622][ T311] ? tsk_fork_get_node+0x10/0x10
[ 64.099583][ T311] ? create_worker+0xee/0x780
[ 64.104271][ T311] create_worker+0x36f/0x780
[ 64.108867][ T311] ? workqueue_prepare_cpu+0x170/0x170
[ 64.114427][ T311] worker_thread+0x4c0/0x1250
[ 64.119106][ T311] kthread+0x3f5/0x4f0
[ 64.123174][ T311] ? worker_clr_flags+0x190/0x190
[ 64.128213][ T311] ? kthread_blkcg+0xd0/0xd0
[ 64.133077][ T311] ret_from_fork+0x1f/0x30
[ 64.137956][ T311]
[ 64.140963][ T480] CPU: 0 PID: 480 Comm: kworker/u4:4 Not tainted syzkaller #0
[ 64.141240][ T26] FAULT_INJECTION: forcing a failure.
[ 64.141240][ T26] name failslab, interval 1, probability 10, space 0, times 37
[ 64.149033][ T480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 64.172258][ T480] Workqueue: writeback wb_workfn (flush-8:0)
[ 64.178354][ T480] Call Trace:
[ 64.181684][ T480]
[ 64.184694][ T480] __dump_stack+0x21/0x30
[ 64.189106][ T480] dump_stack_lvl+0x110/0x170
[ 64.193859][ T480] ? show_regs_print_info+0x20/0x20
[ 64.199042][ T480] ? prandom_u32+0x24d/0x290
[ 64.203618][ T480] dump_stack+0x15/0x20
[ 64.207765][ T480] should_fail+0x3ab/0x500
[ 64.212275][ T480] __should_failslab+0xa4/0xe0
[ 64.217029][ T480] should_failslab+0x9/0x20
[ 64.221618][ T480] slab_pre_alloc_hook+0x39/0xd0
[ 64.226559][ T480] ? mempool_alloc_slab+0x1d/0x30
[ 64.231573][ T480] kmem_cache_alloc+0x44/0x260
[ 64.236545][ T480] ? mempool_free+0x330/0x330
[ 64.241403][ T480] mempool_alloc_slab+0x1d/0x30
[ 64.246257][ T480] mempool_alloc+0x167/0x4c0
[ 64.251020][ T480] ? cgroup_rstat_updated+0xf0/0x360
[ 64.256296][ T480] ? __this_cpu_preempt_check+0x13/0x20
[ 64.261833][ T480] ? __mod_memcg_lruvec_state+0x122/0x1b0
[ 64.267547][ T480] ? mempool_resize+0x880/0x880
[ 64.272569][ T480] ? __test_set_page_writeback+0x670/0x910
[ 64.278540][ T480] bio_alloc_bioset+0x124/0x910
[ 64.283381][ T480] ? __kasan_check_write+0x14/0x20
[ 64.288570][ T480] submit_bh_wbc+0x1c2/0x680
[ 64.293157][ T480] ? page_mkclean+0x209/0x2b0
[ 64.297843][ T480] __block_write_full_page+0x877/0xef0
[ 64.303303][ T480] ? blkdev_fallocate+0x4f0/0x4f0
[ 64.308407][ T480] ? mark_buffer_write_io_error+0x270/0x270
[ 64.314317][ T480] block_write_full_page+0x12f/0x140
[ 64.319595][ T480] ? blkdev_fallocate+0x4f0/0x4f0
[ 64.324624][ T480] blkdev_writepage+0x24/0x30
[ 64.329477][ T480] __writepage+0x66/0x130
[ 64.330785][ T311] workqueue: Failed to create a worker thread: -ENOMEM
[ 64.333801][ T480] write_cache_pages+0x7ce/0xd30
[ 64.345788][ T480] ? generic_writepages+0x170/0x170
[ 64.352488][ T480] ? tag_pages_for_writeback+0x3d0/0x3d0
[ 64.359111][ T480] ? prb_read_valid+0x60/0x60
[ 64.365035][ T480] ? blk_start_plug+0x50/0x170
[ 64.370104][ T480] generic_writepages+0x104/0x170
[ 64.375420][ T480] ? clear_page_dirty_for_io+0x5a0/0x5a0
[ 64.381233][ T480] ? prb_read_valid+0x3d/0x60
[ 64.386007][ T480] ? console_unlock+0xe6f/0xf10
[ 64.391019][ T480] blkdev_writepages+0x1d/0x30
[ 64.396067][ T480] ? blkdev_readpage+0x20/0x20
[ 64.401123][ T480] do_writepages+0x476/0x6d0
[ 64.405725][ T480] ? __update_load_avg_cfs_rq+0xb1/0x2e0
[ 64.412053][ T480] ? __writepage+0x130/0x130
[ 64.416655][ T480] ? update_load_avg+0x442/0x1110
[ 64.422209][ T480] ? __kasan_check_write+0x14/0x20
[ 64.428139][ T480] ? _raw_spin_lock+0x94/0xf0
[ 64.432918][ T480] __writeback_single_inode+0xd9/0x9e0
[ 64.439486][ T480] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 64.447833][ T480] writeback_sb_inodes+0x9f3/0x1610
[ 64.453987][ T480] ? queue_io+0x4b0/0x4b0
[ 64.459055][ T480] ? down_read_trylock+0x317/0x630
[ 64.464287][ T480] ? __cond_resched+0xd0/0xd0
[ 64.469162][ T480] __writeback_inodes_wb+0x127/0x400
[ 64.474573][ T480] wb_writeback+0x3ff/0x990
[ 64.479180][ T480] ? inode_cgwb_move_to_attached+0x3b0/0x3b0
[ 64.485511][ T480] ? set_worker_desc+0x1ba/0x1f0
[ 64.490630][ T480] ? __kasan_check_write+0x14/0x20
[ 64.495749][ T480] ? cpumask_next+0x7c/0xa0
[ 64.500918][ T480] wb_workfn+0xa49/0xf30
[ 64.505452][ T480] ? inode_wait_for_writeback+0x220/0x220
[ 64.511165][ T480] ? compat_start_thread+0x20/0x20
[ 64.516266][ T480] ? finish_task_switch+0x16b/0x790
[ 64.521691][ T480] ? switch_mm_irqs_off+0x32d/0x960
[ 64.527035][ T480] ? __schedule+0xbd7/0x14a0
[ 64.531767][ T480] process_one_work+0x6c8/0xbb0
[ 64.536723][ T480] worker_thread+0xaa0/0x1250
[ 64.541754][ T480] ? __kasan_check_read+0x11/0x20
[ 64.546871][ T480] kthread+0x3f5/0x4f0
[ 64.551128][ T480] ? worker_clr_flags+0x190/0x190
[ 64.556246][ T480] ? kthread_blkcg+0xd0/0xd0
[ 64.561533][ T480] ret_from_fork+0x1f/0x30
[ 64.565995][ T480]
[ 64.569392][ T26] CPU: 1 PID: 26 Comm: kworker/1:0 Not tainted syzkaller #0
[ 64.577076][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 64.587626][ T26] Workqueue: mld mld_ifc_work
[ 64.592414][ T26] Call Trace:
[ 64.595779][ T26]
[ 64.598792][ T26] __dump_stack+0x21/0x30
[ 64.603476][ T26] dump_stack_lvl+0x110/0x170
[ 64.608372][ T26] ? show_regs_print_info+0x20/0x20
[ 64.613600][ T26] ? prandom_u32+0x24d/0x290
[ 64.618878][ T26] dump_stack+0x15/0x20
[ 64.623079][ T26] should_fail+0x3ab/0x500
[ 64.627489][ T26] __should_failslab+0xa4/0xe0
[ 64.632247][ T26] should_failslab+0x9/0x20
[ 64.636830][ T26] slab_pre_alloc_hook+0x39/0xd0
[ 64.641757][ T26] kmem_cache_alloc_trace+0x48/0x270
[ 64.647036][ T26] ? dst_cow_metrics_generic+0x55/0x1c0
[ 64.652571][ T26] dst_cow_metrics_generic+0x55/0x1c0
[ 64.657956][ T26] icmp6_dst_alloc+0x35f/0x520
[ 64.662725][ T26] mld_sendpack+0x4d9/0xba0
[ 64.667277][ T26] ? add_grec+0x1340/0x1340
[ 64.672127][ T26] ? add_grec+0xf70/0x1340
[ 64.676558][ T26] ? memcpy+0x56/0x70
[ 64.680720][ T26] ? wait_for_completion_killable_timeout+0x10/0x10
[ 64.687422][ T26] mld_ifc_work+0x7d7/0xc40
[ 64.692019][ T26] process_one_work+0x6c8/0xbb0
[ 64.697039][ T26] worker_thread+0xaa0/0x1250
[ 64.701918][ T26] kthread+0x3f5/0x4f0
[ 64.706073][ T26] ? worker_clr_flags+0x190/0x190
[ 64.711182][ T26] ? kthread_blkcg+0xd0/0xd0
[ 64.715853][ T26] ret_from_fork+0x1f/0x30
[ 64.720521][ T26]
[ 64.723525][ T90] CPU: 0 PID: 90 Comm: klogd Not tainted syzkaller #0
[ 64.730495][ T90] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 64.740630][ T90] Call Trace:
[ 64.743903][ T90]
[ 64.746835][ T90] __dump_stack+0x21/0x30
[ 64.751158][ T90] dump_stack_lvl+0x110/0x170
[ 64.756003][ T90] ? show_regs_print_info+0x20/0x20
[ 64.761754][ T90] ? prandom_u32+0x24d/0x290
[ 64.766536][ T90] dump_stack+0x15/0x20
[ 64.770694][ T90] should_fail+0x3ab/0x500
[ 64.775102][ T90] __should_failslab+0xa4/0xe0
[ 64.779955][ T90] should_failslab+0x9/0x20
[ 64.784633][ T90] slab_pre_alloc_hook+0x39/0xd0
[ 64.789591][ T90] ? __alloc_skb+0xe4/0x730
[ 64.794093][ T90] kmem_cache_alloc+0x44/0x260
[ 64.798857][ T90] __alloc_skb+0xe4/0x730
[ 64.803190][ T90] alloc_skb_with_frags+0xa8/0x620
[ 64.808695][ T90] ? memcpy+0x56/0x70
[ 64.812881][ T90] sock_alloc_send_pskb+0x87f/0x9a0
[ 64.818340][ T90] ? sock_kzfree_s+0x60/0x60
[ 64.823026][ T90] ? __kasan_check_write+0x14/0x20
[ 64.828278][ T90] ? _raw_spin_lock+0x94/0xf0
[ 64.832955][ T90] ? _raw_spin_trylock_bh+0x150/0x150
[ 64.838362][ T90] unix_dgram_sendmsg+0x6f3/0x19b0
[ 64.843844][ T90] ? unix_dgram_poll+0x6c0/0x6c0
[ 64.848771][ T90] ? path_put+0x57/0x60
[ 64.852984][ T90] ? security_socket_sendmsg+0x82/0xa0
[ 64.858527][ T90] __sys_sendto+0x46d/0x620
[ 64.863026][ T90] ? __ia32_sys_getpeername+0x90/0x90
[ 64.868433][ T90] __x64_sys_sendto+0xe5/0x100
[ 64.873473][ T90] x64_sys_call+0x178/0x9a0
[ 64.877973][ T90] do_syscall_64+0x4c/0xa0
[ 64.882391][ T90] ? clear_bhb_loop+0x50/0xa0
[ 64.887142][ T90] ? clear_bhb_loop+0x50/0xa0
[ 64.891169][ T26] FAULT_INJECTION: forcing a failure.
[ 64.891169][ T26] name failslab, interval 1, probability 10, space 0, times 34
[ 64.891807][ T90] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 64.910816][ T90] RIP: 0033:0x7fe49a601407
[ 64.915425][ T90] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
[ 64.935311][ T90] RSP: 002b:00007ffcdc441560 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 64.944014][ T90] RAX: ffffffffffffffda RBX: 00007fe49a4b1c80 RCX: 00007fe49a601407
[ 64.952080][ T90] RDX: 00000000000000f9 RSI: 00007ffcdc4416a0 RDI: 0000000000000003
[ 64.960353][ T90] RBP: 00007ffcdc441ad0 R08: 0000000000000000 R09: 0000000000000000
[ 64.968401][ T90] R10: 0000000000004000 R11: 0000000000000202 R12: 00007ffcdc441ae8
[ 64.976646][ T90] R13: 00007ffcdc4416a0 R14: 00000000000000de R15: 00007ffcdc4416a0
[ 64.984833][ T90]
[ 64.988123][ T26] CPU: 1 PID: 26 Comm: kworker/1:0 Not tainted syzkaller #0
[ 64.989666][ T8] FAULT_INJECTION: forcing a failure.
[ 64.989666][ T8] name failslab, interval 1, probability 10, space 0, times 34
[ 64.995951][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 64.995971][ T26] Workqueue: mld mld_ifc_work
[ 64.995993][ T26] Call Trace:
[ 64.995998][ T26]
[ 64.996005][ T26] __dump_stack+0x21/0x30
[ 64.996024][ T26] dump_stack_lvl+0x110/0x170
[ 65.009501][ T2] FAULT_INJECTION: forcing a failure.
[ 65.009501][ T2] name failslab, interval 1, probability 10, space 0, times 34
[ 65.019776][ T26] ? show_regs_print_info+0x20/0x20
[ 65.019806][ T26] dump_stack+0x15/0x20
[ 65.024774][ T6] FAULT_INJECTION: forcing a failure.
[ 65.024774][ T6] name failslab, interval 1, probability 10, space 0, times 34
[ 65.028374][ T26] should_fail+0x3ab/0x500
[ 65.082481][ T26] __should_failslab+0xa4/0xe0
[ 65.087461][ T26] should_failslab+0x9/0x20
[ 65.092323][ T26] slab_pre_alloc_hook+0x39/0xd0
[ 65.097389][ T26] ? __alloc_skb+0xe4/0x730
[ 65.101974][ T26] kmem_cache_alloc+0x44/0x260
[ 65.106760][ T26] __alloc_skb+0xe4/0x730
[ 65.111172][ T26] mld_newpack+0x143/0x9e0
[ 65.115672][ T26] ? mld_sendpack+0xba0/0xba0
[ 65.120699][ T26] ? add_grec+0x1340/0x1340
[ 65.125551][ T26] ? add_grec+0xf70/0x1340
[ 65.130048][ T26] add_grec+0xee8/0x1340
[ 65.134283][ T26] ? wait_for_completion_killable_timeout+0x10/0x10
[ 65.140972][ T26] mld_ifc_work+0x728/0xc40
[ 65.145657][ T26] process_one_work+0x6c8/0xbb0
[ 65.151162][ T26] worker_thread+0xaa0/0x1250
[ 65.155837][ T26] kthread+0x3f5/0x4f0
[ 65.159895][ T26] ? worker_clr_flags+0x190/0x190
[ 65.165012][ T26] ? kthread_blkcg+0xd0/0xd0
[ 65.169911][ T26] ret_from_fork+0x1f/0x30
[ 65.174636][ T26]
[ 65.177667][ T6] CPU: 0 PID: 6 Comm: kworker/0:0 Not tainted syzkaller #0
[ 65.185145][ T6] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 65.195380][ T6] Workqueue: wg-crypt-wg1 wg_packet_tx_worker
[ 65.201592][ T6] Call Trace:
[ 65.204857][ T6]
[ 65.207830][ T6] __dump_stack+0x21/0x30
[ 65.212241][ T6] dump_stack_lvl+0x110/0x170
[ 65.217163][ T6] ? show_regs_print_info+0x20/0x20
[ 65.222374][ T6] ? prandom_u32+0x24d/0x290
[ 65.227233][ T6] dump_stack+0x15/0x20
[ 65.231465][ T6] should_fail+0x3ab/0x500
[ 65.236048][ T6] __should_failslab+0xa4/0xe0
[ 65.241593][ T6] should_failslab+0x9/0x20
[ 65.246260][ T6] slab_pre_alloc_hook+0x39/0xd0
[ 65.251976][ T6] ? dst_alloc+0x15c/0x1d0
[ 65.257094][ T6] kmem_cache_alloc+0x44/0x260
[ 65.262315][ T6] dst_alloc+0x15c/0x1d0
[ 65.267020][ T6] ip_route_output_key_hash_rcu+0x13b5/0x1f90
[ 65.273339][ T6] ? ip_route_output_key_hash_rcu+0x1171/0x1f90
[ 65.279790][ T6] ip_route_output_flow+0x138/0x2f0
[ 65.284995][ T6] ? ipv4_sk_update_pmtu+0x14e0/0x14e0
[ 65.290447][ T6] ? inet_confirm_addr+0x10f/0x120
[ 65.296016][ T6] send4+0x30f/0x980
[ 65.300877][ T6] ? wg_socket_send_skb_to_peer+0x1d0/0x1d0
[ 65.307356][ T6] wg_socket_send_skb_to_peer+0xd4/0x1d0
[ 65.313032][ T6] wg_packet_tx_worker+0x1bf/0x4a0
[ 65.318706][ T6] process_one_work+0x6c8/0xbb0
[ 65.323907][ T6] worker_thread+0xaa0/0x1250
[ 65.332264][ T6] kthread+0x3f5/0x4f0
[ 65.339063][ T6] ? worker_clr_flags+0x190/0x190
[ 65.345775][ T6] ? kthread_blkcg+0xd0/0xd0
[ 65.351319][ T6] ret_from_fork+0x1f/0x30
[ 65.356634][ T6]
[ 65.360720][ T64] CPU: 1 PID: 64 Comm: jbd2/sda1-8 Not tainted syzkaller #0
[ 65.368208][ T64] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 65.379576][ T64] Call Trace:
[ 65.382863][ T64]
[ 65.385889][ T64] __dump_stack+0x21/0x30
[ 65.390572][ T64] dump_stack_lvl+0x110/0x170
[ 65.395324][ T64] ? show_regs_print_info+0x20/0x20
[ 65.400603][ T64] ? prandom_u32+0x24d/0x290
[ 65.405327][ T64] dump_stack+0x15/0x20
[ 65.409496][ T64] should_fail+0x3ab/0x500
[ 65.414528][ T64] __should_failslab+0xa4/0xe0
[ 65.420100][ T64] should_failslab+0x9/0x20
[ 65.424827][ T64] slab_pre_alloc_hook+0x39/0xd0
[ 65.431612][ T64] ? mempool_alloc_slab+0x1d/0x30
[ 65.437929][ T64] kmem_cache_alloc+0x44/0x260
[ 65.444690][ T64] ? submit_bio_noacct+0x762/0x800
[ 65.452159][ T64] ? mempool_free+0x330/0x330
[ 65.457964][ T64] mempool_alloc_slab+0x1d/0x30
[ 65.460946][ T480] FAULT_INJECTION: forcing a failure.
[ 65.460946][ T480] name failslab, interval 1, probability 10, space 0, times 32
[ 65.466680][ T64] mempool_alloc+0x167/0x4c0
[ 65.494350][ T64] ? chksum_update+0x47/0xa0
[ 65.500813][ T64] ? fscrypt_set_bio_crypt_ctx+0x179/0x4f0
[ 65.507927][ T64] ? crypto_shash_update+0x216/0x300
[ 65.513719][ T64] ? mempool_resize+0x880/0x880
[ 65.520344][ T64] ? blkcg_set_ioprio+0x1f6/0x320
[ 65.526932][ T64] ? submit_bio+0x367/0x620
[ 65.532126][ T64] ? submit_bio_noacct+0x800/0x800
[ 65.537697][ T64] bio_alloc_bioset+0x124/0x910
[ 65.542657][ T64] submit_bh_wbc+0x1c2/0x680
[ 65.547980][ T64] submit_bh+0x2a/0x40
[ 65.552537][ T64] jbd2_journal_commit_transaction+0x2461/0x5650
[ 65.559375][ T64] ? jbd2_journal_finish_inode_data_buffers+0xb0/0xb0
[ 65.566600][ T64] ? __switch_to+0x56c/0x1070
[ 65.571497][ T64] ? compat_start_thread+0x20/0x20
[ 65.578013][ T64] ? _raw_spin_unlock+0x4d/0x70
[ 65.583034][ T64] ? _raw_spin_lock+0xf0/0xf0
[ 65.588248][ T64] ? __kasan_check_write+0x14/0x20
[ 65.593718][ T64] ? _raw_spin_lock_irqsave+0xc2/0x130
[ 65.599370][ T64] ? _raw_spin_lock+0xf0/0xf0
[ 65.604542][ T64] ? detach_if_pending+0xf5/0x300
[ 65.609769][ T64] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 65.615761][ T64] ? del_timer_sync+0x144/0x1a0
[ 65.621011][ T64] kjournald2+0x43d/0x860
[ 65.625556][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0
[ 65.631032][ T64] ? io_schedule+0xe0/0xe0
[ 65.635501][ T64] ? __kasan_check_read+0x11/0x20
[ 65.640549][ T64] ? __kthread_parkme+0xab/0x1f0
[ 65.645572][ T64] kthread+0x3f5/0x4f0
[ 65.649918][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0
[ 65.655234][ T64] ? kthread_blkcg+0xd0/0xd0
[ 65.659950][ T64] ret_from_fork+0x1f/0x30
[ 65.664375][ T64]
[ 65.667614][ T480] CPU: 0 PID: 480 Comm: kworker/u4:4 Not tainted syzkaller #0
[ 65.675183][ T480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 65.685978][ T480] Workqueue: writeback wb_workfn (flush-8:0)
[ 65.692369][ T480] Call Trace:
[ 65.695815][ T480]
[ 65.698744][ T480] __dump_stack+0x21/0x30
[ 65.703094][ T480] dump_stack_lvl+0x110/0x170
[ 65.708014][ T480] ? show_regs_print_info+0x20/0x20
[ 65.713278][ T480] ? prandom_u32+0x24d/0x290
[ 65.718046][ T480] dump_stack+0x15/0x20
[ 65.722329][ T480] should_fail+0x3ab/0x500
[ 65.726829][ T480] __should_failslab+0xa4/0xe0
[ 65.732406][ T480] should_failslab+0x9/0x20
[ 65.737009][ T480] slab_pre_alloc_hook+0x39/0xd0
[ 65.742064][ T480] ? mempool_alloc_slab+0x1d/0x30
[ 65.748083][ T480] kmem_cache_alloc+0x44/0x260
[ 65.752866][ T480] ? mempool_free+0x330/0x330
[ 65.757987][ T480] mempool_alloc_slab+0x1d/0x30
[ 65.762839][ T480] mempool_alloc+0x167/0x4c0
[ 65.767590][ T480] ? cgroup_rstat_updated+0xf0/0x360
[ 65.773693][ T480] ? __this_cpu_preempt_check+0x13/0x20
[ 65.780052][ T480] ? __mod_memcg_lruvec_state+0x122/0x1b0
[ 65.786296][ T480] ? mempool_resize+0x880/0x880
[ 65.791886][ T480] ? __test_set_page_writeback+0x670/0x910
[ 65.797870][ T480] bio_alloc_bioset+0x124/0x910
[ 65.803116][ T480] ? __kasan_check_read+0x11/0x20
[ 65.808302][ T480] submit_bh_wbc+0x1c2/0x680
[ 65.812980][ T480] ? page_mkclean+0x209/0x2b0
[ 65.818196][ T480] __block_write_full_page+0x877/0xef0
[ 65.823980][ T480] ? blkdev_fallocate+0x4f0/0x4f0
[ 65.829616][ T480] ? mark_buffer_write_io_error+0x270/0x270
[ 65.836231][ T480] block_write_full_page+0x12f/0x140
[ 65.842048][ T480] ? blkdev_fallocate+0x4f0/0x4f0
[ 65.848533][ T480] blkdev_writepage+0x24/0x30
[ 65.855701][ T480] __writepage+0x66/0x130
[ 65.862056][ T480] write_cache_pages+0x7ce/0xd30
[ 65.867204][ T480] ? generic_writepages+0x170/0x170
[ 65.873528][ T480] ? tag_pages_for_writeback+0x3d0/0x3d0
[ 65.879341][ T480] ? prb_read_valid+0x60/0x60
[ 65.884287][ T480] ? blk_start_plug+0x50/0x170
[ 65.889572][ T480] generic_writepages+0x104/0x170
[ 65.894704][ T480] ? clear_page_dirty_for_io+0x5a0/0x5a0
[ 65.900537][ T480] ? prb_read_valid+0x3d/0x60
[ 65.905248][ T480] ? console_unlock+0xe6f/0xf10
[ 65.910188][ T480] blkdev_writepages+0x1d/0x30
[ 65.914939][ T480] ? blkdev_readpage+0x20/0x20
[ 65.919822][ T480] do_writepages+0x476/0x6d0
[ 65.924662][ T480] ? __update_load_avg_cfs_rq+0xb1/0x2e0
[ 65.930289][ T480] ? __writepage+0x130/0x130
[ 65.935042][ T480] ? update_load_avg+0x442/0x1110
[ 65.940228][ T480] ? __kasan_check_write+0x14/0x20
[ 65.945767][ T480] ? _raw_spin_lock+0x94/0xf0
[ 65.950438][ T480] __writeback_single_inode+0xd9/0x9e0
[ 65.956615][ T480] ? wbc_attach_and_unlock_inode+0x194/0x5f0
[ 65.962867][ T480] writeback_sb_inodes+0x9f3/0x1610
[ 65.968066][ T480] ? queue_io+0x4b0/0x4b0
[ 65.972385][ T480] ? down_read_trylock+0x317/0x630
[ 65.977567][ T480] ? __cond_resched+0xd0/0xd0
[ 65.982232][ T480] __writeback_inodes_wb+0x127/0x400
[ 65.987648][ T480] wb_writeback+0x3ff/0x990
[ 65.992339][ T480] ? inode_cgwb_move_to_attached+0x3b0/0x3b0
[ 65.998667][ T480] ? set_worker_desc+0x1ba/0x1f0
[ 66.003728][ T480] ? __kasan_check_write+0x14/0x20
[ 66.009006][ T480] ? cpumask_next+0x7c/0xa0
[ 66.013506][ T480] wb_workfn+0xa49/0xf30
[ 66.017825][ T480] ? inode_wait_for_writeback+0x220/0x220
[ 66.023775][ T480] ? compat_start_thread+0x20/0x20
[ 66.028876][ T480] ? finish_task_switch+0x16b/0x790
[ 66.034344][ T480] ? switch_mm_irqs_off+0x32d/0x960
[ 66.039736][ T480] ? __schedule+0xbd7/0x14a0
[ 66.044547][ T480] process_one_work+0x6c8/0xbb0
[ 66.049600][ T480] worker_thread+0xaa0/0x1250
[ 66.054598][ T480] ? __kasan_check_read+0x11/0x20
[ 66.059644][ T480] kthread+0x3f5/0x4f0
[ 66.063795][ T480] ? worker_clr_flags+0x190/0x190
[ 66.068998][ T480] ? kthread_blkcg+0xd0/0xd0
[ 66.073783][ T480] ret_from_fork+0x1f/0x30
[ 66.078391][ T480]
[ 66.081689][ T90] FAULT_INJECTION: forcing a failure.
[ 66.081689][ T90] name failslab, interval 1, probability 10, space 0, times 30
[ 66.082524][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted syzkaller #0
[ 66.101006][ T58] FAULT_INJECTION: forcing a failure.
[ 66.101006][ T58] name failslab, interval 1, probability 10, space 0, times 30
[ 66.102458][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 66.102471][ T8] Workqueue: netns cleanup_net
[ 66.130660][ T8] Call Trace:
[ 66.134045][ T8]
[ 66.136976][ T8] __dump_stack+0x21/0x30
[ 66.141389][ T8] dump_stack_lvl+0x110/0x170
[ 66.146254][ T8] ? show_regs_print_info+0x20/0x20
[ 66.151480][ T8] ? prandom_u32+0x24d/0x290
[ 66.156232][ T8] dump_stack+0x15/0x20
[ 66.160383][ T8] should_fail+0x3ab/0x500
[ 66.164891][ T8] ? inet_netconf_notify_devconf+0x169/0x220
[ 66.170949][ T8] __should_failslab+0xa4/0xe0
[ 66.175884][ T8] should_failslab+0x9/0x20
[ 66.180467][ T8] slab_pre_alloc_hook+0x39/0xd0
[ 66.185487][ T8] ? inet_netconf_notify_devconf+0x169/0x220
[ 66.191459][ T8] ? inet_netconf_notify_devconf+0x169/0x220
[ 66.197513][ T8] __kmalloc_track_caller+0x6c/0x2c0
[ 66.203086][ T8] ? inet_netconf_notify_devconf+0x169/0x220
[ 66.209064][ T8] ? inet_netconf_notify_devconf+0x169/0x220
[ 66.215043][ T8] __alloc_skb+0x210/0x730
[ 66.219456][ T8] inet_netconf_notify_devconf+0x169/0x220
[ 66.225263][ T8] inetdev_event+0x7b0/0x1060
[ 66.230104][ T8] ? devinet_exit_net+0x220/0x220
[ 66.235226][ T8] ? up_read+0x56/0x1d0
[ 66.239385][ T8] raw_notifier_call_chain+0x90/0x100
[ 66.245036][ T8] unregister_netdevice_many+0x103d/0x1a00
[ 66.251115][ T8] ? alloc_netdev_mqs+0xe20/0xe20
[ 66.256419][ T8] ? unregister_netdevice_queue+0x17c/0x320
[ 66.262305][ T8] ? list_netdevice+0x4c0/0x4c0
[ 66.267431][ T8] ip6gre_exit_batch_net+0x5ca/0x620
[ 66.273037][ T8] ? ip6gre_init_net+0x340/0x340
[ 66.278425][ T8] ? ip6gre_init_net+0x340/0x340
[ 66.283613][ T8] cleanup_net+0x605/0xae0
[ 66.288027][ T8] ? ops_init+0x470/0x470
[ 66.292435][ T8] process_one_work+0x6c8/0xbb0
[ 66.297406][ T8] worker_thread+0xaa0/0x1250
[ 66.302100][ T8] kthread+0x3f5/0x4f0
[ 66.306165][ T8] ? worker_clr_flags+0x190/0x190
[ 66.311305][ T8] ? kthread_blkcg+0xd0/0xd0
[ 66.315885][ T8] ret_from_fork+0x1f/0x30
[ 66.320292][ T8]
[ 66.323302][ T58] CPU: 1 PID: 58 Comm: mld Not tainted syzkaller #0
[ 66.323413][ C0] FAULT_INJECTION: forcing a failure.
[ 66.323413][ C0] name failslab, interval 1, probability 10, space 0, times 30
[ 66.330245][ T58] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 66.330260][ T58] Workqueue: mld mld_ifc_work
[ 66.357771][ T58] Call Trace:
[ 66.361040][ T58]
[ 66.363958][ T58] __dump_stack+0x21/0x30
[ 66.368456][ T58] dump_stack_lvl+0x110/0x170
[ 66.373255][ T58] ? show_regs_print_info+0x20/0x20
[ 66.378615][ T58] ? prandom_u32+0x24d/0x290
[ 66.383202][ T58] dump_stack+0x15/0x20
[ 66.387437][ T58] should_fail+0x3ab/0x500
[ 66.392370][ T58] ? mld_newpack+0x143/0x9e0
[ 66.397938][ T58] __should_failslab+0xa4/0xe0
[ 66.402924][ T58] should_failslab+0x9/0x20
[ 66.407446][ T58] slab_pre_alloc_hook+0x39/0xd0
[ 66.413138][ T58] ? mld_newpack+0x143/0x9e0
[ 66.418447][ T58] ? mld_newpack+0x143/0x9e0
[ 66.423334][ T58] __kmalloc_track_caller+0x6c/0x2c0
[ 66.429609][ T58] ? mld_newpack+0x143/0x9e0
[ 66.435170][ T58] ? mld_newpack+0x143/0x9e0
[ 66.440107][ T58] __alloc_skb+0x210/0x730
[ 66.445183][ T58] mld_newpack+0x143/0x9e0
[ 66.449992][ T58] ? update_rq_clock+0x1eb/0x590
[ 66.455313][ T58] ? mld_sendpack+0xba0/0xba0
[ 66.460095][ T58] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 66.466256][ T58] ? __set_cpus_allowed_ptr_locked+0x5cc/0x1020
[ 66.473389][ T58] add_grec+0xee8/0x1340
[ 66.477646][ T58] ? wait_for_completion_killable_timeout+0x10/0x10
[ 66.484642][ T58] mld_ifc_work+0x728/0xc40
[ 66.489259][ T58] process_one_work+0x6c8/0xbb0
[ 66.494223][ T58] rescuer_thread+0x73d/0xf80
[ 66.499006][ T58] ? rcu_free_pwq+0x30/0x30
[ 66.503591][ T58] ? __kasan_check_read+0x11/0x20
[ 66.508638][ T58] ? __kthread_parkme+0xab/0x1f0
[ 66.513656][ T58] kthread+0x3f5/0x4f0
[ 66.517821][ T58] ? rcu_free_pwq+0x30/0x30
[ 66.522413][ T58] ? kthread_blkcg+0xd0/0xd0
[ 66.528005][ T58] ret_from_fork+0x1f/0x30
[ 66.536133][ T58]
[ 66.540271][ C0] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted syzkaller #0
[ 66.552982][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 66.570858][ C0] Workqueue: netns cleanup_net
[ 66.571177][ T64] FAULT_INJECTION: forcing a failure.
[ 66.571177][ T64] name failslab, interval 1, probability 10, space 0, times 28
[ 66.577740][ C0] Call Trace:
[ 66.595257][ C0]
[ 66.598277][ C0] __dump_stack+0x21/0x30
[ 66.603015][ C0] dump_stack_lvl+0x110/0x170
[ 66.608196][ C0] ? show_regs_print_info+0x20/0x20
[ 66.613430][ C0] ? prandom_u32+0x24d/0x290
[ 66.618226][ C0] dump_stack+0x15/0x20
[ 66.622878][ C0] should_fail+0x3ab/0x500
[ 66.628043][ C0] __should_failslab+0xa4/0xe0
[ 66.632812][ C0] should_failslab+0x9/0x20
[ 66.639066][ C0] slab_pre_alloc_hook+0x39/0xd0
[ 66.644527][ C0] ? dst_alloc+0x15c/0x1d0
[ 66.649503][ C0] kmem_cache_alloc+0x44/0x260
[ 66.655300][ C0] ? ipv6_sysctl_rtcache_flush+0x100/0x100
[ 66.661289][ C0] dst_alloc+0x15c/0x1d0
[ 66.665666][ C0] icmp6_dst_alloc+0xec/0x520
[ 66.670987][ C0] ? security_sk_classify_flow+0x7b/0x90
[ 66.678415][ C0] ? icmpv6_flow_init+0xd2/0x130
[ 66.684142][ C0] ndisc_send_skb+0x2a9/0xcf0
[ 66.689307][ C0] ? inet_netconf_notify_devconf+0x169/0x220
[ 66.696764][ C0] ? inetdev_event+0x7b0/0x1060
[ 66.702754][ C0] ? raw_notifier_call_chain+0x90/0x100
[ 66.708955][ C0] ? unregister_netdevice_many+0x103d/0x1a00
[ 66.715539][ C0] ? ip6gre_exit_batch_net+0x5ca/0x620
[ 66.721735][ C0] ? ret_from_fork+0x1f/0x30
[ 66.726717][ C0] ? ndisc_alloc_skb+0x290/0x290
[ 66.732106][ C0] ndisc_send_rs+0x711/0x960
[ 66.737692][ C0] addrconf_rs_timer+0x35a/0x600
[ 66.742823][ C0] ? addrconf_disable_policy_idev+0x360/0x360
[ 66.749292][ C0] ? _raw_spin_lock_irq+0x95/0xf0
[ 66.754900][ C0] ? _raw_spin_lock_irqsave+0x130/0x130
[ 66.761076][ C0] ? local_bh_enable+0x1f/0x30
[ 66.766037][ C0] ? wg_expired_send_keepalive+0x13e/0x1b0
[ 66.772221][ C0] ? addrconf_disable_policy_idev+0x360/0x360
[ 66.778949][ C0] call_timer_fn+0x38/0x290
[ 66.784101][ C0] ? addrconf_disable_policy_idev+0x360/0x360
[ 66.792066][ C0] __run_timers+0x637/0x9a0
[ 66.799036][ C0] ? calc_index+0x200/0x200
[ 66.803965][ C0] ? sched_clock_cpu+0x18/0x3d0
[ 66.809236][ C0] run_timer_softirq+0x6a/0xf0
[ 66.814334][ C0] handle_softirqs+0x250/0x560
[ 66.819552][ C0] ? irqtime_account_irq+0xbe/0x390
[ 66.824942][ C0] __irq_exit_rcu+0x52/0xf0
[ 66.830191][ C0] irq_exit_rcu+0x9/0x10
[ 66.836945][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 66.841039][ T481] FAULT_INJECTION: forcing a failure.
[ 66.841039][ T481] name failslab, interval 1, probability 10, space 0, times 28
[ 66.843587][ C0]
[ 66.859950][ C0]
[ 66.863308][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 66.869290][ C0] RIP: 0010:preempt_schedule_irq+0xa5/0x120
[ 66.875713][ C0] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 11 2d 95 fc fb bf 01 00 00 00 76 e4 ff ff fa bf 01 00 00 00 e8 ab 2e 95 fc 65 48 8b 1d 13 d7
[ 66.895859][ C0] RSP: 0018:ffffc90000087520 EFLAGS: 00000246
[ 66.902138][ C0] RAX: 1ffff1102004eb36 RBX: ffffc900000875f8 RCX: ffffffff870ccf00
[ 66.910122][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
[ 66.918480][ C0] RBP: ffffc900000875a8 R08: ffff888100274f07 R09: 1ffff1102004e9e0
[ 66.927117][ C0] R10: dffffc0000000000 R11: ffffed102004e9e1 R12: 0000000000000000
[ 66.936557][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000010ea4
[ 66.946393][ C0] ? __cond_resched+0xd0/0xd0
[ 66.951172][ C0] irqentry_exit_cond_resched+0x29/0x30
[ 66.958038][ C0] irqentry_exit+0x37/0x40
[ 66.962621][ C0] sysvec_reschedule_ipi+0x78/0x80
[ 66.967929][ C0] asm_sysvec_reschedule_ipi+0x1b/0x20
[ 66.973726][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170
[ 66.979831][ C0] Code: e6 00 02 00 00 31 ff e8 3a 77 be fc 49 81 e5 00 02 00 00 75 07 e8 ec 72 be fc eb 06 e8 e5 72 be fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40
[ 67.000088][ C0] RSP: 0018:ffffc900000876a0 EFLAGS: 00000293
[ 67.006331][ C0] RAX: ffffffff84ab43fb RBX: ffffffff8564c0a0 RCX: ffff888100274f00
[ 67.014473][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
[ 67.022876][ C0] RBP: ffffc90000087740 R08: 0000000000000003 R09: 0000000000000004
[ 67.031369][ C0] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000
[ 67.039902][ C0] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000010ed4
[ 67.048374][ C0] ? dump_stack_lvl+0x13b/0x170
[ 67.053493][ C0] ? show_regs_print_info+0x20/0x20
[ 67.058888][ C0] ? prandom_u32+0x24d/0x290
[ 67.063518][ C0] dump_stack+0x15/0x20
[ 67.067770][ C0] should_fail+0x3ab/0x500
[ 67.072273][ C0] ? inet_netconf_notify_devconf+0x169/0x220
[ 67.078350][ C0] __should_failslab+0xa4/0xe0
[ 67.083123][ C0] should_failslab+0x9/0x20
[ 67.087715][ C0] slab_pre_alloc_hook+0x39/0xd0
[ 67.092870][ C0] ? inet_netconf_notify_devconf+0x169/0x220
[ 67.101026][ C0] ? inet_netconf_notify_devconf+0x169/0x220
[ 67.107371][ C0] __kmalloc_track_caller+0x6c/0x2c0
[ 67.112760][ C0] ? inet_netconf_notify_devconf+0x169/0x220
[ 67.118960][ C0] ? inet_netconf_notify_devconf+0x169/0x220
[ 67.125536][ C0] __alloc_skb+0x210/0x730
[ 67.130507][ C0] inet_netconf_notify_devconf+0x169/0x220
[ 67.137157][ C0] inetdev_event+0x7b0/0x1060
[ 67.142295][ C0] ? devinet_exit_net+0x220/0x220
[ 67.147687][ C0] ? up_read+0x56/0x1d0
[ 67.151869][ C0] raw_notifier_call_chain+0x90/0x100
[ 67.157348][ C0] unregister_netdevice_many+0x103d/0x1a00
[ 67.160799][ C1] FAULT_INJECTION: forcing a failure.
[ 67.160799][ C1] name failslab, interval 1, probability 10, space 0, times 28
[ 67.163218][ C0] ? alloc_netdev_mqs+0xe20/0xe20
[ 67.182726][ C0] ? unregister_netdevice_queue+0x17c/0x320
[ 67.188720][ C0] ? list_netdevice+0x4c0/0x4c0
[ 67.193650][ C0] ip6gre_exit_batch_net+0x5ca/0x620
[ 67.199016][ C0] ? ip6gre_init_net+0x340/0x340
[ 67.204030][ C0] ? ip6gre_init_net+0x340/0x340
[ 67.208959][ C0] cleanup_net+0x605/0xae0
[ 67.213475][ C0] ? ops_init+0x470/0x470
[ 67.217886][ C0] process_one_work+0x6c8/0xbb0
[ 67.222915][ C0] worker_thread+0xaa0/0x1250
[ 67.227684][ C0] kthread+0x3f5/0x4f0
[ 67.231768][ C0] ? worker_clr_flags+0x190/0x190
[ 67.236993][ C0] ? kthread_blkcg+0xd0/0xd0
[ 67.241932][ C0] ret_from_fork+0x1f/0x30
[ 67.246472][ C0]
[ 67.250092][ C1] CPU: 1 PID: 64 Comm: jbd2/sda1-8 Not tainted syzkaller #0
[ 67.251260][ T20] FAULT_INJECTION: forcing a failure.
[ 67.251260][ T20] name failslab, interval 1, probability 10, space 0, times 27
[ 67.257551][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 67.282835][ C1] Call Trace:
[ 67.286141][ C1]
[ 67.289064][ C1] __dump_stack+0x21/0x30
[ 67.293475][ C1] dump_stack_lvl+0x110/0x170
[ 67.298169][ C1] ? show_regs_print_info+0x20/0x20
[ 67.303449][ C1] ? prandom_u32+0x24d/0x290
[ 67.308132][ C1] dump_stack+0x15/0x20
[ 67.312308][ C1] should_fail+0x3ab/0x500
[ 67.316840][ C1] ? wg_packet_send_keepalive+0x62/0x1c0
[ 67.322894][ C1] __should_failslab+0xa4/0xe0
[ 67.327971][ C1] should_failslab+0x9/0x20
[ 67.332851][ C1] slab_pre_alloc_hook+0x39/0xd0
[ 67.338513][ C1] ? wg_packet_send_keepalive+0x62/0x1c0
[ 67.344287][ C1] ? wg_packet_send_keepalive+0x62/0x1c0
[ 67.350744][ C1] __kmalloc_track_caller+0x6c/0x2c0
[ 67.356725][ C1] ? wg_packet_send_keepalive+0x62/0x1c0
[ 67.362634][ C1] ? wg_packet_send_keepalive+0x62/0x1c0
[ 67.368739][ C1] __alloc_skb+0x210/0x730
[ 67.373161][ C1] wg_packet_send_keepalive+0x62/0x1c0
[ 67.379678][ C1] ? wg_expired_send_persistent_keepalive+0x44/0x80
[ 67.387585][ C1] wg_expired_send_persistent_keepalive+0x53/0x80
[ 67.394393][ C1] ? wg_expired_zero_key_material+0x170/0x170
[ 67.400663][ C1] call_timer_fn+0x38/0x290
[ 67.406084][ C1] ? wg_expired_zero_key_material+0x170/0x170
[ 67.413477][ C1] __run_timers+0x637/0x9a0
[ 67.419711][ C1] ? calc_index+0x200/0x200
[ 67.427676][ C1] ? sched_clock_cpu+0x18/0x3d0
[ 67.433932][ C1] run_timer_softirq+0x6a/0xf0
[ 67.441036][ C1] handle_softirqs+0x250/0x560
[ 67.450332][ C1] __irq_exit_rcu+0x52/0xf0
[ 67.457301][ C1] irq_exit_rcu+0x9/0x10
[ 67.463514][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 67.471622][ C1]
[ 67.476246][ C1]
[ 67.480550][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 67.487832][ C1] RIP: 0010:__printk_wait_on_cpu_lock+0xb/0x40
[ 67.494833][ C1] Code: 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 fc e4 56 00 4c 89 33 5b 41 5c 41 5e 41 5f 5d c3 55 48 89 e5 e8 d7 74 17 00 f3 90 <48> c7 c7 80 1f 71 86 be 04 00 00 00 e8 14 e6 56 00 8b 05 5e dd 1e
[ 67.517887][ C1] RSP: 0018:ffffc900009374d0 EFLAGS: 00000293
[ 67.523982][ C1] RAX: ffffffff8152422c RBX: ffffffff8564c0a0 RCX: ffff88810c6fa780
[ 67.532131][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff86711f80
[ 67.541077][ C1] RBP: ffffc900009374d0 R08: 0000000000000003 R09: 0000000000000004
[ 67.551935][ C1] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000
[ 67.563623][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000126e9c
[ 67.575672][ C1] ? __printk_wait_on_cpu_lock+0x2c/0x40
[ 67.582265][ C1] dump_stack_lvl+0xce/0x170
[ 67.587051][ C1] ? show_regs_print_info+0x20/0x20
[ 67.592526][ C1] ? prandom_u32+0x24d/0x290
[ 67.597605][ C1] dump_stack+0x15/0x20
[ 67.602556][ C1] should_fail+0x3ab/0x500
[ 67.607416][ C1] __should_failslab+0xa4/0xe0
[ 67.612184][ C1] should_failslab+0x9/0x20
[ 67.616773][ C1] slab_pre_alloc_hook+0x39/0xd0
[ 67.621744][ C1] ? mempool_alloc_slab+0x1d/0x30
[ 67.626860][ C1] kmem_cache_alloc+0x44/0x260
[ 67.631819][ C1] ? submit_bio_noacct+0x762/0x800
[ 67.637513][ C1] ? mempool_free+0x330/0x330
[ 67.642562][ C1] mempool_alloc_slab+0x1d/0x30
[ 67.647713][ C1] mempool_alloc+0x167/0x4c0
[ 67.653570][ C1] ? chksum_update+0x47/0xa0
[ 67.658261][ C1] ? fscrypt_set_bio_crypt_ctx+0x179/0x4f0
[ 67.664175][ C1] ? mempool_resize+0x880/0x880
[ 67.669032][ C1] ? blkcg_set_ioprio+0x1f6/0x320
[ 67.674329][ C1] ? submit_bio+0x367/0x620
[ 67.678944][ C1] ? submit_bio_noacct+0x800/0x800
[ 67.684798][ C1] bio_alloc_bioset+0x124/0x910
[ 67.690528][ C1] submit_bh_wbc+0x1c2/0x680
[ 67.695438][ C1] submit_bh+0x2a/0x40
[ 67.699916][ C1] jbd2_journal_commit_transaction+0x2461/0x5650
[ 67.706790][ C1] ? jbd2_journal_finish_inode_data_buffers+0xb0/0xb0
[ 67.713955][ C1] ? __switch_to+0x56c/0x1070
[ 67.718754][ C1] ? compat_start_thread+0x20/0x20
[ 67.723888][ C1] ? _raw_spin_unlock+0x4d/0x70
[ 67.728852][ C1] ? _raw_spin_lock+0xf0/0xf0
[ 67.733923][ C1] ? __kasan_check_write+0x14/0x20
[ 67.739457][ C1] ? _raw_spin_lock_irqsave+0xc2/0x130
[ 67.747291][ C1] ? _raw_spin_lock+0xf0/0xf0
[ 67.752171][ C1] ? detach_if_pending+0xf5/0x300
[ 67.757595][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 67.763588][ C1] ? del_timer_sync+0x144/0x1a0
[ 67.769002][ C1] kjournald2+0x43d/0x860
[ 67.774533][ C1] ? jbd2_seq_info_show+0x5c0/0x5c0
[ 67.780950][ C1] ? io_schedule+0xe0/0xe0
[ 67.789115][ C1] ? __kasan_check_read+0x11/0x20
[ 67.798416][ C1] ? __kthread_parkme+0xab/0x1f0
[ 67.807288][ C1] kthread+0x3f5/0x4f0
[ 67.812903][ C1] ? jbd2_seq_info_show+0x5c0/0x5c0
[ 67.819631][ C1] ? kthread_blkcg+0xd0/0xd0
[ 67.826654][ C1] ret_from_fork+0x1f/0x30
[ 67.836730][ C1]
[ 67.842044][ T20] CPU: 0 PID: 20 Comm: kworker/0:1 Not tainted syzkaller #0
[ 67.842163][ C1] FAULT_INJECTION: forcing a failure.
[ 67.842163][ C1] name failslab, interval 1, probability 10, space 0, times 26
[ 67.849334][ T20] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 67.874946][ T20] Workqueue: wg-crypt-wg2 wg_packet_tx_worker
[ 67.882430][ T20] Call Trace:
[ 67.886489][ T20]
[ 67.890333][ T20] __dump_stack+0x21/0x30
[ 67.895668][ T20] dump_stack_lvl+0x110/0x170
[ 67.901981][ T20] ? show_regs_print_info+0x20/0x20
[ 67.907817][ T20] ? prandom_u32+0x24d/0x290
[ 67.912739][ T20] dump_stack+0x15/0x20
[ 67.917068][ T20] should_fail+0x3ab/0x500
[ 67.921661][ T20] __should_failslab+0xa4/0xe0
[ 67.927899][ T20] should_failslab+0x9/0x20
[ 67.933769][ T20] slab_pre_alloc_hook+0x39/0xd0
[ 67.939361][ T20] ? dst_alloc+0x15c/0x1d0
[ 67.943924][ T20] kmem_cache_alloc+0x44/0x260
[ 67.949658][ T20] dst_alloc+0x15c/0x1d0
[ 67.954468][ T20] ip_route_output_key_hash_rcu+0x13b5/0x1f90
[ 67.961514][ T20] ? ip_route_output_key_hash_rcu+0x1171/0x1f90
[ 67.968085][ T20] ip_route_output_flow+0x138/0x2f0
[ 67.974097][ T20] ? ipv4_sk_update_pmtu+0x14e0/0x14e0
[ 67.979854][ T20] ? inet_confirm_addr+0x10f/0x120
[ 67.985107][ T20] send4+0x30f/0x980
[ 67.989305][ T20] ? wg_socket_send_skb_to_peer+0x1d0/0x1d0
[ 67.995206][ T20] wg_socket_send_skb_to_peer+0xd4/0x1d0
[ 68.000933][ T20] wg_packet_tx_worker+0x1bf/0x4a0
[ 68.006260][ T20] process_one_work+0x6c8/0xbb0
[ 68.011165][ T20] worker_thread+0xaa0/0x1250
[ 68.016294][ T20] ? __kasan_check_read+0x11/0x20
[ 68.021685][ T20] kthread+0x3f5/0x4f0
[ 68.026210][ T20] ? worker_clr_flags+0x190/0x190
[ 68.031410][ T20] ? kthread_blkcg+0xd0/0xd0
[ 68.036098][ T20] ret_from_fork+0x1f/0x30
[ 68.040531][ T20]
[ 68.043904][ C1] CPU: 1 PID: 64 Comm: jbd2/sda1-8 Not tainted syzkaller #0
[ 68.046427][ T8] FAULT_INJECTION: forcing a failure.
[ 68.046427][ T8] name failslab, interval 1, probability 10, space 0, times 24
[ 68.055186][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 68.055206][ C1] Call Trace:
[ 68.055213][ C1]
[ 68.055220][ C1] __dump_stack+0x21/0x30
[ 68.093353][ C1] dump_stack_lvl+0x110/0x170
[ 68.098635][ C1] ? show_regs_print_info+0x20/0x20
[ 68.104487][ C1] ? prandom_u32+0x24d/0x290
[ 68.109299][ C1] dump_stack+0x15/0x20
[ 68.113563][ C1] should_fail+0x3ab/0x500
[ 68.118528][ C1] __should_failslab+0xa4/0xe0
[ 68.123372][ C1] should_failslab+0x9/0x20
[ 68.128049][ C1] slab_pre_alloc_hook+0x39/0xd0
[ 68.133361][ C1] kmem_cache_alloc_trace+0x48/0x270
[ 68.138853][ C1] ? dst_cow_metrics_generic+0x55/0x1c0
[ 68.141387][ T101] FAULT_INJECTION: forcing a failure.
[ 68.141387][ T101] name failslab, interval 1, probability 10, space 0, times 24
[ 68.144867][ C1] dst_cow_metrics_generic+0x55/0x1c0
[ 68.164395][ C1] icmp6_dst_alloc+0x35f/0x520
[ 68.169677][ C1] ndisc_send_skb+0x2a9/0xcf0
[ 68.174899][ C1] ? jbd2_journal_commit_transaction+0x2461/0x5650
[ 68.182022][ C1] ? kjournald2+0x43d/0x860
[ 68.187087][ C1] ? kthread+0x3f5/0x4f0
[ 68.191548][ C1] ? ret_from_fork+0x1f/0x30
[ 68.196361][ C1] ? ndisc_alloc_skb+0x290/0x290
[ 68.201309][ C1] ? skb_put+0x10a/0x1f0
[ 68.205819][ C1] ndisc_send_rs+0x711/0x960
[ 68.210914][ C1] ? ndisc_send_rs+0xa1/0x960
[ 68.216213][ C1] addrconf_rs_timer+0x35a/0x600
[ 68.221339][ C1] ? addrconf_disable_policy_idev+0x360/0x360
[ 68.228715][ C1] ? addrconf_disable_policy_idev+0x360/0x360
[ 68.237116][ C1] call_timer_fn+0x38/0x290
[ 68.243044][ C1] ? addrconf_disable_policy_idev+0x360/0x360
[ 68.249768][ C1] __run_timers+0x637/0x9a0
[ 68.255032][ C1] ? calc_index+0x200/0x200
[ 68.260478][ C1] ? sched_clock_cpu+0x18/0x3d0
[ 68.265618][ C1] run_timer_softirq+0x6a/0xf0
[ 68.270667][ C1] handle_softirqs+0x250/0x560
[ 68.276064][ C1] __irq_exit_rcu+0x52/0xf0
[ 68.282017][ C1] irq_exit_rcu+0x9/0x10
[ 68.287195][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 68.294846][ C1]
[ 68.299079][ C1]
[ 68.302041][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 68.308337][ C1] RIP: 0010:__printk_wait_on_cpu_lock+0xb/0x40
[ 68.314541][ C1] Code: 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 fc e4 56 00 4c 89 33 5b 41 5c 41 5e 41 5f 5d c3 55 48 89 e5 e8 d7 74 17 00 f3 90 <48> c7 c7 80 1f 71 86 be 04 00 00 00 e8 14 e6 56 00 8b 05 5e dd 1e
[ 68.336169][ C1] RSP: 0018:ffffc900009374d0 EFLAGS: 00000293
[ 68.345196][ C1] RAX: ffffffff8152422c RBX: ffffffff8564c0a0 RCX: ffff88810c6fa780
[ 68.355049][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff86711f80
[ 68.363333][ C1] RBP: ffffc900009374d0 R08: 0000000000000003 R09: 0000000000000004
[ 68.372743][ C1] R10: dffffc0000000000 R11: fffffbfff0ce23f0 R12: dffffc0000000000
[ 68.380902][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000126e9c
[ 68.389668][ C1] ? __printk_wait_on_cpu_lock+0x2c/0x40
[ 68.397186][ C1] dump_stack_lvl+0xce/0x170
[ 68.401789][ C1] ? show_regs_print_info+0x20/0x20
[ 68.407164][ C1] ? prandom_u32+0x24d/0x290
[ 68.413503][ C1] dump_stack+0x15/0x20
[ 68.419248][ C1] should_fail+0x3ab/0x500
[ 68.425128][ C1] __should_failslab+0xa4/0xe0
[ 68.430802][ C1] should_failslab+0x9/0x20
[ 68.436608][ C1] slab_pre_alloc_hook+0x39/0xd0
[ 68.442341][ C1] ? mempool_alloc_slab+0x1d/0x30
[ 68.450068][ C1] kmem_cache_alloc+0x44/0x260
[ 68.455900][ C1] ? submit_bio_noacct+0x762/0x800
[ 68.462869][ C1] ? mempool_free+0x330/0x330
[ 68.468635][ C1] mempool_alloc_slab+0x1d/0x30
[ 68.476752][ C1] mempool_alloc+0x167/0x4c0
[ 68.482114][ C1] ? chksum_update+0x47/0xa0
[ 68.488772][ C1] ? fscrypt_set_bio_crypt_ctx+0x179/0x4f0
[ 68.499444][ C1] ? mempool_resize+0x880/0x880
[ 68.508315][ C1] ? blkcg_set_ioprio+0x1f6/0x320
[ 68.514492][ C1] ? submit_bio+0x367/0x620
[ 68.520738][ C1] ? submit_bio_noacct+0x800/0x800
[ 68.526688][ C1] bio_alloc_bioset+0x124/0x910
[ 68.533704][ C1] submit_bh_wbc+0x1c2/0x680
[ 68.538782][ C1] submit_bh+0x2a/0x40
[ 68.543399][ C1] jbd2_journal_commit_transaction+0x2461/0x5650
[ 68.551779][ C1] ? jbd2_journal_finish_inode_data_buffers+0xb0/0xb0
[ 68.560615][ C1] ? __switch_to+0x56c/0x1070
[ 68.566276][ C1] ? compat_start_thread+0x20/0x20
[ 68.572017][ C1] ? _raw_spin_unlock+0x4d/0x70
[ 68.577039][ C1] ? _raw_spin_lock+0xf0/0xf0
[ 68.581724][ C1] ? __kasan_check_write+0x14/0x20
[ 68.587032][ C1] ? _raw_spin_lock_irqsave+0xc2/0x130
[ 68.593447][ C1] ? _raw_spin_lock+0xf0/0xf0
[ 68.598816][ C1] ? detach_if_pending+0xf5/0x300
[ 68.605689][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 68.612496][ C1] ? del_timer_sync+0x144/0x1a0
[ 68.619117][ C1] kjournald2+0x43d/0x860
[ 68.623786][ C1] ? jbd2_seq_info_show+0x5c0/0x5c0
[ 68.629432][ C1] ? io_schedule+0xe0/0xe0
[ 68.633946][ C1] ? __kasan_check_read+0x11/0x20
[ 68.640294][ C1] ? __kthread_parkme+0xab/0x1f0
[ 68.646958][ C1] kthread+0x3f5/0x4f0
[ 68.654173][ C1] ? jbd2_seq_info_show+0x5c0/0x5c0
[ 68.659650][ C1] ? kthread_blkcg+0xd0/0xd0
[ 68.664242][ C1] ret_from_fork+0x1f/0x30
[ 68.668847][ C1]
[ 68.671856][ T101] CPU: 0 PID: 101 Comm: udevd Not tainted syzkaller #0
[ 68.679300][ T101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 68.690620][ T101] Call Trace:
[ 68.694734][ T101]
[ 68.698067][ T101] __dump_stack+0x21/0x30
[ 68.702494][ T101] dump_stack_lvl+0x110/0x170
[ 68.707633][ T101] ? show_regs_print_info+0x20/0x20
[ 68.712862][ T101] ? prandom_u32+0x24d/0x290
[ 68.717805][ T101] dump_stack+0x15/0x20
[ 68.721964][ T101] should_fail+0x3ab/0x500
[ 68.726487][ T101] __should_failslab+0xa4/0xe0
[ 68.731298][ T101] should_failslab+0x9/0x20
[ 68.735967][ T101] slab_pre_alloc_hook+0x39/0xd0
[ 68.741072][ T101] ? security_file_alloc+0x33/0x120
[ 68.746919][ T101] kmem_cache_alloc+0x44/0x260
[ 68.751805][ T101] security_file_alloc+0x33/0x120
[ 68.757116][ T101] __alloc_file+0xb5/0x2a0
[ 68.761719][ T101] alloc_empty_file+0x97/0x180
[ 68.766845][ T101] path_openat+0xf4/0x2f80
[ 68.771559][ T101] ? __stack_depot_save+0x34/0x480
[ 68.777146][ T101] ? __kasan_slab_alloc+0xc9/0xe0
[ 68.783058][ T101] ? __kasan_slab_alloc+0xb7/0xe0
[ 68.788419][ T101] ? slab_post_alloc_hook+0x4f/0x2b0
[ 68.794297][ T101] ? kmem_cache_alloc+0xf7/0x260
[ 68.799335][ T101] ? getname_flags+0xba/0x510
[ 68.804553][ T101] ? getname+0x19/0x20
[ 68.808817][ T101] ? do_sys_openat2+0xeb/0x7f0
[ 68.813584][ T101] ? __x64_sys_openat+0x136/0x160
[ 68.818788][ T101] ? x64_sys_call+0x219/0x9a0
[ 68.823462][ T101] ? do_syscall_64+0x4c/0xa0
[ 68.828147][ T101] ? entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 68.834390][ T101] ? do_filp_open+0x400/0x400
[ 68.839844][ T101] do_filp_open+0x1df/0x400
[ 68.846321][ T101] ? vfs_tmpfile+0x2d0/0x2d0
[ 68.853019][ T101] do_sys_openat2+0x15e/0x7f0
[ 68.859195][ T101] ? blkcg_maybe_throttle_current+0x1e0/0xa00
[ 68.865539][ T101] ? __fput+0x67c/0x900
[ 68.869914][ T101] ? do_sys_open+0xe0/0xe0
[ 68.874345][ T101] __x64_sys_openat+0x136/0x160
[ 68.879192][ T101] x64_sys_call+0x219/0x9a0
[ 68.884002][ T101] do_syscall_64+0x4c/0xa0
[ 68.888415][ T101] ? clear_bhb_loop+0x50/0xa0
[ 68.893297][ T101] ? clear_bhb_loop+0x50/0xa0
[ 68.898062][ T101] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 68.904226][ T101] RIP: 0033:0x7f6df510a407
[ 68.908896][ T101] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
[ 68.928830][ T101] RSP: 002b:00007ffe96fe0d30 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
[ 68.937352][ T101] RAX: ffffffffffffffda RBX: 00007f6df501c880 RCX: 00007f6df510a407
[ 68.945596][ T101] RDX: 0000000000080141 RSI: 000055701cca702e RDI: ffffffffffffff9c
[ 68.953696][ T101] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 68.962193][ T101] R10: 00000000000001a4 R11: 0000000000000202 R12: 00000000ffffffff
[ 68.970649][ T101] R13: 00000000ffffffff R14: ffffffffffffffff R15: 0000000000000000
[ 68.979154][ T101]
[ 68.982180][ T64] CPU: 1 PID: 64 Comm: jbd2/sda1-8 Not tainted syzkaller #0
[ 68.990931][ T64] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 69.001733][ T64] Call Trace:
[ 69.005190][ T64]
[ 69.008116][ T64] __dump_stack+0x21/0x30
[ 69.012614][ T64] dump_stack_lvl+0x110/0x170
[ 69.017637][ T64] ? show_regs_print_info+0x20/0x20
[ 69.022925][ T64] ? prandom_u32+0x24d/0x290
[ 69.028106][ T64] dump_stack+0x15/0x20
[ 69.032399][ T64] should_fail+0x3ab/0x500
[ 69.036997][ T64] __should_failslab+0xa4/0xe0
[ 69.041756][ T64] should_failslab+0x9/0x20
[ 69.046530][ T64] slab_pre_alloc_hook+0x39/0xd0
[ 69.051831][ T64] ? mempool_alloc_slab+0x1d/0x30
[ 69.057265][ T64] kmem_cache_alloc+0x44/0x260
[ 69.062221][ T64] ? submit_bio_noacct+0x762/0x800
[ 69.067428][ T64] ? mempool_free+0x330/0x330
[ 69.073089][ T64] mempool_alloc_slab+0x1d/0x30
[ 69.077939][ T64] mempool_alloc+0x167/0x4c0
[ 69.082538][ T64] ? chksum_update+0x47/0xa0
[ 69.087120][ T64] ? fscrypt_set_bio_crypt_ctx+0x179/0x4f0
[ 69.092914][ T64] ? mempool_resize+0x880/0x880
[ 69.098156][ T64] ? blkcg_set_ioprio+0x1f6/0x320
[ 69.103345][ T64] ? submit_bio+0x367/0x620
[ 69.107839][ T64] ? submit_bio_noacct+0x800/0x800
[ 69.113037][ T64] bio_alloc_bioset+0x124/0x910
[ 69.117895][ T64] submit_bh_wbc+0x1c2/0x680
[ 69.122497][ T64] submit_bh+0x2a/0x40
[ 69.126569][ T64] jbd2_journal_commit_transaction+0x2461/0x5650
[ 69.132913][ T64] ? jbd2_journal_finish_inode_data_buffers+0xb0/0xb0
[ 69.140647][ T64] ? __switch_to+0x56c/0x1070
[ 69.145587][ T64] ? compat_start_thread+0x20/0x20
[ 69.150692][ T64] ? _raw_spin_unlock+0x4d/0x70
[ 69.155665][ T64] ? _raw_spin_lock+0xf0/0xf0
[ 69.160543][ T64] ? __kasan_check_write+0x14/0x20
[ 69.165661][ T64] ? _raw_spin_lock_irqsave+0xc2/0x130
[ 69.171230][ T64] ? _raw_spin_lock+0xf0/0xf0
[ 69.175894][ T64] ? detach_if_pending+0xf5/0x300
[ 69.181000][ T64] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 69.186990][ T64] ? del_timer_sync+0x144/0x1a0
[ 69.192029][ T64] kjournald2+0x43d/0x860
[ 69.196354][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0
[ 69.201689][ T64] ? io_schedule+0xe0/0xe0
[ 69.206202][ T64] ? __kasan_check_read+0x11/0x20
[ 69.211471][ T64] ? __kthread_parkme+0xab/0x1f0
[ 69.216403][ T64] kthread+0x3f5/0x4f0
[ 69.220466][ T64] ? jbd2_seq_info_show+0x5c0/0x5c0
[ 69.225747][ T64] ? kthread_blkcg+0xd0/0xd0
[ 69.230418][ T64] ret_from_fork+0x1f/0x30
[ 69.235180][ T64]
[ 69.238267][ T481] CPU: 0 PID: 481 Comm: kworker/u4:5 Not tainted syzkaller #0
[ 69.238559][ T64] FAULT_INJECTION: forcing a failure.
[ 69.238559][ T64] name failslab, interval 1, probability 10, space 0, times 22
[ 69.246203][ T481] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 69.246219][ T481] Workqueue: wg-kex-wg1 wg_packet_handshake_send_worker
[ 69.246242][ T481] Call Trace:
[ 69.246248][ T481]
[ 69.246255][ T481] __dump_stack+0x21/0x30
[ 69.293024][ T481] dump_stack_lvl+0x110/0x170
[ 69.298144][ T481] ? show_regs_print_info+0x20/0x20
[ 69.303557][ T481] dump_stack+0x15/0x20
[ 69.308065][ T481] should_fail+0x3ab/0x500
[ 69.312575][ T481] ? wg_socket_send_buffer_to_peer+0x37/0x170
[ 69.319173][ T481] __should_failslab+0xa4/0xe0
[ 69.324114][ T481] should_failslab+0x9/0x20
[ 69.328712][ T481] slab_pre_alloc_hook+0x39/0xd0
[ 69.333900][ T481] ? wg_socket_send_buffer_to_peer+0x37/0x170
[ 69.340163][ T481] ? wg_socket_send_buffer_to_peer+0x37/0x170
[ 69.346415][ T481] __kmalloc_track_caller+0x6c/0x2c0
[ 69.351790][ T481] ? wg_socket_send_buffer_to_peer+0x37/0x170
[ 69.358138][ T481] ? wg_socket_send_buffer_to_peer+0x37/0x170
[ 69.364355][ T481] __alloc_skb+0x210/0x730
[ 69.368898][ T481] wg_socket_send_buffer_to_peer+0x37/0x170
[ 69.375334][ T481] ? ktime_get_coarse_with_offset+0x153/0x1a0
[ 69.381700][ T481] wg_packet_handshake_send_worker+0x200/0x290
[ 69.388054][ T481] ? wg_prev_queue_dequeue+0x230/0x230
[ 69.393699][ T481] ? __schedule+0xbd7/0x14a0
[ 69.398507][ T481] process_one_work+0x6c8/0xbb0
[ 69.403486][ T481] worker_thread+0xaa0/0x1250
[ 69.408353][ T481] ? __kasan_check_read+0x11/0x20
[ 69.413734][ T481] kthread+0x3f5/0x4f0
[ 69.418319][ T481] ? worker_clr_flags+0x190/0x190
[ 69.423368][ T481] ? kthread_blkcg+0xd0/0xd0
[ 69.428430][ T481] ret_from_fork+0x1f/0x30
[ 69.433381][ T481]
[ 69.436582][ T64] CPU: 1 PID: 64 Comm: jbd2/sda1-8 Not tainted syzkaller #0
[ 69.444578][ T64] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 69.460024][ T64] Call Trace:
[ 69.465218][ T64]
[ 69.469267][ T64] __dump_stack+0x21/0x30
[ 69.474167][ T64] dump_stack_lvl+0x110/0x170
[ 69.480853][ T64] ? show_regs_print_info+0x20/0x20
[ 69.486352][ T64] ? prandom_u32+0x24d/0x290
[ 69.491157][ T64] dump_stack+0x15/0x20
[ 69.495424][ T64] should_fail+0x3ab/0x500
[ 69.499834][ T64] __should_failslab+0xa4/0xe0
[ 69.504601][ T64] should_failslab+0x9/0x20
[ 69.509502][ T64] slab_pre_alloc_hook+0x39/0xd0
[ 69.514624][ T64] ? mempool_alloc_slab+0x1d/0x30
[ 69.520113][ T64] kmem_cache_alloc+0x44/0x260
[ 69.524891][ T64] ? submit_bio_noacct+0x762/0x800
[ 69.530108][ T64] ? mempool_free+0x330/0x330
[ 69.534866][ T64] mempool_alloc_slab+0x1d/0x30
[ 69.539715][ T64] mempool_alloc+0x167/0x4c0
[ 69.544473][ T64] ? chksum_update+0x47/0xa0
[ 69.550126][ T64] ? fscrypt_set_bio_crypt_ctx+0x179/0x4f0
[ 69.556273][ T64] ? mempool_resize+0x880/0x880
[ 69.561437][ T64] ? blkcg_set_ioprio+0x1f6/0x320
[ 69.566658][ T64] ? submit_bio+0x367/0x620
[ 69.571182][ T64] ? submit_bio_noacct+0x800/0x800
[ 69.576293][ T64] bio_alloc_bioset+0x124/0x910
[ 69.581218][ T64] submit_bh_wbc+0x1c2/0x680
[ 69.585807][ T64] submit_bh+0x2a/0x40
[ 69.589877][ T64] jbd2_journal_commit_transaction+0x2461/0x5650
[ 69.596288][ T64] ? jbd2_journal_finish_inode_data_buffers+0xb0/0xb0
[ 69.603237][ T64] ? __switch_to+0x56c/0x1070
[ 69.608089][ T64] ? compat_start_thread+0x20/0x20
[ 69.613188][ T64] ? _raw_spin_unlock+0x4d/0x70
[ 69.618150][ T64] ? _raw_spin_lock+0xf0/0xf0
[ 69.622813][ T64] ? __kasan_check_write+0x14/0x20
[ 69.628004][ T64] ? _raw_spin_lock_irqsave+0xc2/0x130
[ 69.633465][ T64] ? _raw_spin_lock+0xf0/0xf0
[ 69.638414][ T64] ? detach_if_pending+0xf5/0x300
[ 69.643517][ T64] ? _raw_spin_unlock_irqrestore+0x5b/0x80