forked to background, child pid 3177 no interfaces have a carrier [ 27.000838][ T3178] 8021q: adding VLAN 0 to HW filter on device bond0 [ 27.013878][ T3178] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.16' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 48.871018][ T3593] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor363/3593 [ 48.880567][ T3593] caller is netdev_core_stats_alloc+0x98/0x110 [ 48.887050][ T3593] CPU: 0 PID: 3593 Comm: syz-executor363 Not tainted 5.17.0-rc7-syzkaller-02426-g97aeb877de7f #0 [ 48.897557][ T3593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.907600][ T3593] Call Trace: [ 48.910885][ T3593] [ 48.913803][ T3593] dump_stack_lvl+0xcd/0x134 [ 48.918387][ T3593] check_preemption_disabled+0x16b/0x170 [ 48.924015][ T3593] netdev_core_stats_alloc+0x98/0x110 [ 48.929386][ T3593] tun_get_user+0x3455/0x3ab0 [ 48.934052][ T3593] ? tun_build_skb+0x1010/0x1010 [ 48.938973][ T3593] ? lock_downgrade+0x6e0/0x6e0 [ 48.943832][ T3593] tun_chr_write_iter+0xe1/0x200 [ 48.948755][ T3593] new_sync_write+0x431/0x660 [ 48.953416][ T3593] ? new_sync_read+0x6e0/0x6e0 [ 48.958290][ T3593] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 48.964581][ T3593] ? security_file_permission+0xab/0xd0 [ 48.970132][ T3593] vfs_write+0x7cd/0xae0 [ 48.974376][ T3593] ksys_write+0x12d/0x250 [ 48.978711][ T3593] ? __ia32_sys_read+0xb0/0xb0 [ 48.983480][ T3593] ? syscall_enter_from_user_mode+0x21/0x70 [ 48.989439][ T3593] do_syscall_64+0x35/0xb0 [ 48.993847][ T3593] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 48.999771][ T3593] RIP: 0033:0x7f1b7b1b6863 [ 49.004179][ T3593] 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 [ 49.023772][ T3593] RSP: 002b:00007ffd49bf2068 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 49.032189][ T3593] RAX: ffffffffffffffda RBX: 00007ffd49bf2090 RCX: 00007f1b7b1b6863 [ 49.040144][ T3593] RDX: 000000000000008a RSI: 0000000000000000 RDI: 00000000000000c8 [ 49.048095][ T3593] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000 [ 49.056046][ T3593] R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000 [ 49.063998][ T3593] R13: 00007ffd49bf2080 R14: 00007ffd49bf2078 R15: 00007ffd49bf2074 [ 49.071973][ T3593]