DUID 00:04:64:fe:60:40:6b:21:45:e2:2b:76:87:02:d2:43:fb:60 forked to background, child pid 3176 [ 26.776062][ T3177] 8021q: adding VLAN 0 to HW filter on device bond0 [ 26.786505][ T3177] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.31' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.655679][ T3593] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor413/3593 [ 42.665324][ T3593] caller is netdev_core_stats_alloc+0x98/0x110 [ 42.671485][ T3593] CPU: 1 PID: 3593 Comm: syz-executor413 Not tainted 5.17.0-rc7-syzkaller-02426-g97aeb877de7f #0 [ 42.681965][ T3593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.692001][ T3593] Call Trace: [ 42.695263][ T3593] [ 42.698181][ T3593] dump_stack_lvl+0xcd/0x134 [ 42.702758][ T3593] check_preemption_disabled+0x16b/0x170 [ 42.708382][ T3593] netdev_core_stats_alloc+0x98/0x110 [ 42.713741][ T3593] tun_get_user+0x3455/0x3ab0 [ 42.718410][ T3593] ? tun_build_skb+0x1010/0x1010 [ 42.723329][ T3593] ? lock_downgrade+0x6e0/0x6e0 [ 42.728175][ T3593] tun_chr_write_iter+0xe1/0x200 [ 42.733094][ T3593] new_sync_write+0x431/0x660 [ 42.737755][ T3593] ? new_sync_read+0x6e0/0x6e0 [ 42.742511][ T3593] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 42.748748][ T3593] ? security_file_permission+0xab/0xd0 [ 42.754288][ T3593] vfs_write+0x7cd/0xae0 [ 42.758707][ T3593] ksys_write+0x12d/0x250 [ 42.763034][ T3593] ? __ia32_sys_read+0xb0/0xb0 [ 42.767790][ T3593] ? syscall_enter_from_user_mode+0x21/0x70 [ 42.773676][ T3593] do_syscall_64+0x35/0xb0 [ 42.778087][ T3593] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 42.783969][ T3593] RIP: 0033:0x7f2cf4f887e3 [ 42.788367][ 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 [ 42.807955][ T3593] RSP: 002b:00007ffd50dd5fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 42.816353][ T3593] RAX: ffffffffffffffda RBX: 00007ffd50dd6000 RCX: 00007f2cf4f887e3 [ 42.824307][ T3593] RDX: 000000000000002a RSI: 0000000000000000 RDI: 00000000000000c8 [ 42.832267][ T3593] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 42.840563][ T3593] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 42.848524][ T3593] R13: 00007ffd50dd5ff0 R14: 00007ffd50dd5fe8 R15: 00007ffd50dd5fe4 [ 42.856498][ T3593]