forked to background, child pid 3175 no interfaces have a carrier [ 26.175572][ T3176] 8021q: adding VLAN 0 to HW filter on device bond0 [ 26.185685][ T3176] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.178' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 51.136756][ T3591] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor402/3591 [ 51.146314][ T3591] caller is netdev_core_stats_alloc+0x98/0x110 [ 51.152520][ T3591] CPU: 0 PID: 3591 Comm: syz-executor402 Not tainted 5.17.0-rc7-syzkaller-02443-gd96657dc9238 #0 [ 51.163020][ T3591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.173053][ T3591] Call Trace: [ 51.176312][ T3591] [ 51.179224][ T3591] dump_stack_lvl+0xcd/0x134 [ 51.183800][ T3591] check_preemption_disabled+0x16b/0x170 [ 51.189422][ T3591] netdev_core_stats_alloc+0x98/0x110 [ 51.194797][ T3591] tun_get_user+0x342b/0x3ab0 [ 51.199475][ T3591] ? tun_build_skb+0x1010/0x1010 [ 51.204413][ T3591] ? lock_downgrade+0x6e0/0x6e0 [ 51.209256][ T3591] tun_chr_write_iter+0xe1/0x200 [ 51.214176][ T3591] new_sync_write+0x431/0x660 [ 51.218850][ T3591] ? new_sync_read+0x6e0/0x6e0 [ 51.223617][ T3591] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 51.229845][ T3591] ? security_file_permission+0xab/0xd0 [ 51.235378][ T3591] vfs_write+0x7cd/0xae0 [ 51.239609][ T3591] ksys_write+0x12d/0x250 [ 51.243920][ T3591] ? __ia32_sys_read+0xb0/0xb0 [ 51.248667][ T3591] ? syscall_enter_from_user_mode+0x21/0x70 [ 51.254546][ T3591] do_syscall_64+0x35/0xb0 [ 51.258950][ T3591] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 51.264828][ T3591] RIP: 0033:0x7f445d46fa93 [ 51.269225][ T3591] 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 [ 51.289161][ T3591] RSP: 002b:00007ffdd5ad9d48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 51.297553][ T3591] RAX: ffffffffffffffda RBX: 00007ffdd5ad9d70 RCX: 00007f445d46fa93 [ 51.305503][ T3591] RDX: 00000000200002ba RSI: 0000000020000200 RDI: 00000000000000c8 [ 51.313454][ T3591] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 51.321416][ T3591] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 51.329369][ T3591] R13: 00007ffdd5ad9d60 R14: 00007ffdd5ad9d58 R15: 00007ffdd5ad9d54 [ 51.337330][ T3591]