DUID 00:04:60:0b:d9:94:f1:4e:15:d4:cc:23:27:00:18:99:58:ba
forked to background, child pid 3176
[ 25.977676][ T3177] 8021q: adding VLAN 0 to HW filter on device bond0
[ 25.987380][ T3177] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
Warning: Permanently added '10.128.10.26' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [ 50.593197][ T3600] FAULT_INJECTION: forcing a failure.
[ 50.593197][ T3600] name fail_usercopy, interval 1, probability 0, space 0, times 1
[ 50.606567][ T3600] CPU: 1 PID: 3600 Comm: syz-executor348 Not tainted 5.17.0-rc7-syzkaller-02443-gd96657dc9238 #0
[ 50.617060][ T3600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 50.627115][ T3600] Call Trace:
[ 50.630563][ T3600]
[ 50.633483][ T3600] dump_stack_lvl+0xcd/0x134
[ 50.638078][ T3600] should_fail.cold+0x5/0xa
[ 50.642569][ T3600] copy_page_from_iter+0x359/0x7c0
[ 50.647667][ T3600] tun_build_skb+0x27c/0x1010
[ 50.652342][ T3600] ? tun_xdp_act+0x9e0/0x9e0
[ 50.656916][ T3600] ? __lock_acquire+0xbc4/0x56c0
[ 50.661845][ T3600] tun_get_user+0x812/0x3ab0
[ 50.666427][ T3600] ? tun_build_skb+0x1010/0x1010
[ 50.671349][ T3600] ? lock_downgrade+0x6e0/0x6e0
[ 50.676210][ T3600] tun_chr_write_iter+0xe1/0x200
[ 50.681132][ T3600] new_sync_write+0x431/0x660
[ 50.685804][ T3600] ? new_sync_read+0x6e0/0x6e0
[ 50.690559][ T3600] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[ 50.696784][ T3600] ? security_file_permission+0xab/0xd0
[ 50.702319][ T3600] vfs_write+0x7cd/0xae0
[ 50.706559][ T3600] ksys_write+0x12d/0x250
[ 50.710873][ T3600] ? __ia32_sys_read+0xb0/0xb0
[ 50.715635][ T3600] ? syscall_enter_from_user_mode+0x21/0x70
[ 50.721547][ T3600] do_syscall_64+0x35/0xb0
[ 50.725956][ T3600] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 50.731839][ T3600] RIP: 0033:0x7f4a9ea19b33
[ 50.736242][ T3600] Code: 5d 41 5c 41 5d 41 5e e9 9b fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18
[ 50.756006][ T3600] RSP: 002b:00007fff2865e008 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 50.764403][ T3600] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f4a9ea19b33
[ 50.772360][ T3600] RDX: 0000000000000052 RSI: 0000000020000040 RDI: 00000000000000c8
[ 50.780315][ T3600] RBP: 00007fff2865e030 R08: 0000000000000000 R09: 0000000000000001
[ 50.788285][ T3600] R10: 00007fff2865dda7 R11: 0000000000000246 R12: 0000000000000003
[ 50.796242][ T3600] R13: 0000000000000000 R14: 00007fff2865e024 R15: 00007fff2865e030
[ 50.804203][ T3600]
[ 50.807962][ T3600] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor348/3600
[ 50.817560][ T3600] caller is netdev_core_stats_alloc+0x98/0x110
[ 50.823788][ T3600] CPU: 0 PID: 3600 Comm: syz-executor348 Not tainted 5.17.0-rc7-syzkaller-02443-gd96657dc9238 #0
[ 50.834298][ T3600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 50.844362][ T3600] Call Trace:
[ 50.847632][ T3600]
[ 50.850557][ T3600] dump_stack_lvl+0xcd/0x134
[ 50.855162][ T3600] check_preemption_disabled+0x16b/0x170
[ 50.860800][ T3600] netdev_core_stats_alloc+0x98/0x110
[ 50.866192][ T3600] tun_get_user+0x3455/0x3ab0
[ 50.870882][ T3600] ? tun_build_skb+0x1010/0x1010
[ 50.875824][ T3600] ? lock_downgrade+0x6e0/0x6e0
[ 50.880695][ T3600] tun_chr_write_iter+0xe1/0x200
[ 50.885631][ T3600] new_sync_write+0x431/0x660
[ 50.890309][ T3600] ? new_sync_read+0x6e0/0x6e0
[ 50.895086][ T3600] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[ 50.901329][ T3600] ? security_file_permission+0xab/0xd0
[ 50.906881][ T3600] vfs_write+0x7cd/0xae0
[ 50.911129][ T3600] ksys_write+0x12d/0x250
[ 50.915469][ T3600] ? __ia32_sys_read+0xb0/0xb0
[ 50.920247][ T3600] ? syscall_enter_from_user_mode+0x21/0x70
[ 50.926150][ T3600] do_syscall_64+0x35/0xb0
[ 50.930577][ T3600] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 50.936473][ T3600] RIP: 0033:0x7f4a9ea19b33
[ 50.940883][ T3600] Code: 5d 41 5c 41 5d 41 5e e9 9b fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18
[ 50.960488][ T3600] RSP: 002b:00007fff2865e008 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 50.968900][ T3600] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f4a9ea19b33
[ 50.976879][ T3600] RDX: 0000000000000052 RSI: 0000000020000040 RDI: 00000000000000c8
[ 50.984846][ T3600] RBP: 00007fff2865e030 R08: 0000000000000000 R09: 0000000000000001
[ 50.992824][ T3600] R10: 00007fff2865dda7 R11: 0000000000000246 R12: 0000000000000003
[ 51.000794][ T3600] R13: 0000000000000000 R14: 00007fff2865e024 R15: 00007fff2865e030
[ 51.008789][ T3600]