DUID 00:04:f2:2d:62:da:c3:85:a0:c9:3a:ab:4f:1c:2c:dc:65:98 forked to background, child pid 3176 [ 26.807542][ T3177] 8021q: adding VLAN 0 to HW filter on device bond0 [ 26.817994][ T3177] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.244' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 46.012913][ T3593] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor405/3593 [ 46.022385][ T3593] caller is netdev_core_stats_alloc+0x98/0x110 [ 46.028667][ T3593] CPU: 1 PID: 3593 Comm: syz-executor405 Not tainted 5.17.0-rc7-syzkaller-02426-g97aeb877de7f #0 [ 46.039151][ T3593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.049191][ T3593] Call Trace: [ 46.052452][ T3593] [ 46.055368][ T3593] dump_stack_lvl+0xcd/0x134 [ 46.059948][ T3593] check_preemption_disabled+0x16b/0x170 [ 46.065569][ T3593] netdev_core_stats_alloc+0x98/0x110 [ 46.070926][ T3593] tun_get_user+0x3455/0x3ab0 [ 46.075595][ T3593] ? tun_build_skb+0x1010/0x1010 [ 46.080517][ T3593] ? lock_downgrade+0x6e0/0x6e0 [ 46.085360][ T3593] tun_chr_write_iter+0xe1/0x200 [ 46.090280][ T3593] new_sync_write+0x431/0x660 [ 46.094945][ T3593] ? new_sync_read+0x6e0/0x6e0 [ 46.099698][ T3593] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 46.105938][ T3593] ? security_file_permission+0xab/0xd0 [ 46.111471][ T3593] vfs_write+0x7cd/0xae0 [ 46.115701][ T3593] ksys_write+0x12d/0x250 [ 46.120015][ T3593] ? __ia32_sys_read+0xb0/0xb0 [ 46.124763][ T3593] ? syscall_enter_from_user_mode+0x21/0x70 [ 46.130644][ T3593] do_syscall_64+0x35/0xb0 [ 46.135041][ T3593] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 46.140936][ T3593] RIP: 0033:0x7effd0446823 [ 46.145333][ 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 [ 46.164920][ T3593] RSP: 002b:00007ffd47bd5b88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 46.173330][ T3593] RAX: ffffffffffffffda RBX: 00007ffd47bd5bb0 RCX: 00007effd0446823 [ 46.181307][ T3593] RDX: 0000000000000022 RSI: 0000000000000000 RDI: 00000000000000c8 [ 46.189280][ T3593] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 46.197230][ T3593] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 46.205183][ T3593] R13: 00007ffd47bd5ba0 R14: 00007ffd47bd5b98 R15: 00007ffd47bd5b94 [ 46.213144][ T3593]