Warning: Permanently added '10.128.0.121' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 67.553472][ T8649] IPVS: ftp: loaded support on port[0] = 21 [ 67.595775][ T8649] netlink: 'syz-executor047': attribute type 1 has an invalid length. [ 67.604385][ T8649] netlink: 'syz-executor047': attribute type 1 has an invalid length. [ 67.613387][ T8649] netlink: 'syz-executor047': attribute type 1 has an invalid length. [ 67.621825][ T8649] netlink: 'syz-executor047': attribute type 1 has an invalid length. [ 67.630379][ T8649] netlink: 'syz-executor047': attribute type 1 has an invalid length. [ 67.638799][ T8649] netlink: 'syz-executor047': attribute type 1 has an invalid length. [ 67.647681][ T8649] netlink: 'syz-executor047': attribute type 1 has an invalid length. [ 67.656810][ T8649] netlink: 'syz-executor047': attribute type 1 has an invalid length. [ 67.665515][ T8649] netlink: 'syz-executor047': attribute type 1 has an invalid length. [ 67.673802][ T8649] netlink: 'syz-executor047': attribute type 1 has an invalid length. [ 67.683547][ T8649] BUG: unable to handle page fault for address: ffff887f9ce3cfff [ 67.691355][ T8649] #PF: supervisor read access in kernel mode [ 67.697501][ T8649] #PF: error_code(0x0000) - not-present page [ 67.703474][ T8649] PGD 0 P4D 0 [ 67.708076][ T8649] Oops: 0000 [#1] PREEMPT SMP KASAN [ 67.713418][ T8649] CPU: 0 PID: 8649 Comm: syz-executor047 Not tainted 5.5.0-rc6-syzkaller #0 [ 67.722084][ T8649] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.732412][ T8649] RIP: 0010:netif_receive_generic_xdp+0x56c/0x11b0 [ 67.738906][ T8649] Code: 74 08 48 89 df e8 d4 3f 60 fb 4c 89 33 48 8b 9d 60 ff ff ff 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 14 3f 60 fb <48> 8b 33 83 e6 01 31 ff 48 89 b5 f0 fe ff ff e8 80 00 24 fb 48 89 [ 67.758800][ T8649] RSP: 0018:ffffc90001d97958 EFLAGS: 00010246 [ 67.765225][ T8649] RAX: 1ffff10ff39c79ff RBX: ffff887f9ce3cfff RCX: 0000000000000100 [ 67.773557][ T8649] RDX: ffff88809f915af0 RSI: 0000000000000000 RDI: ffffc90001d97a88 [ 67.781539][ T8649] RBP: ffffc90001d97a78 R08: ffffffff86527ef6 R09: ffffed10139c5a5d [ 67.789718][ T8649] R10: ffffed10139c5a5d R11: 0000000000000000 R12: ffff88809f915b48 [ 67.797800][ T8649] R13: ffff88809f915a80 R14: ffff88809ce2d000 R15: dffffc0000000000 [ 67.805788][ T8649] FS: 0000000001e97940(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 [ 67.815323][ T8649] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.821898][ T8649] CR2: ffff887f9ce3cfff CR3: 00000000a9229000 CR4: 00000000001406f0 [ 67.829994][ T8649] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.837972][ T8649] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.846060][ T8649] Call Trace: [ 67.849346][ T8649] do_xdp_generic+0x39/0x110 [ 67.853943][ T8649] tun_get_user+0x1dfb/0x37b0 [ 67.859207][ T8649] ? rcu_lock_release+0x21/0x30 [ 67.864510][ T8649] tun_chr_write_iter+0xac/0x130 [ 67.869569][ T8649] do_iter_readv_writev+0x651/0x8e0 [ 67.874770][ T8649] do_iter_write+0x180/0x590 [ 67.879357][ T8649] ? import_iovec+0x122/0x2a0 [ 67.884131][ T8649] do_writev+0x239/0x490 [ 67.888362][ T8649] ? prepare_exit_to_usermode+0x221/0x5b0 [ 67.894497][ T8649] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 67.900615][ T8649] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 67.906439][ T8649] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 67.912385][ T8649] ? do_syscall_64+0x1d/0x1c0 [ 67.917824][ T8649] __x64_sys_writev+0x7d/0x90 [ 67.922690][ T8649] do_syscall_64+0xf7/0x1c0 [ 67.927435][ T8649] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 67.933343][ T8649] RIP: 0033:0x444110 [ 67.937370][ T8649] Code: 05 48 3d 01 f0 ff ff 0f 83 fd 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 3d 21 8f 29 00 00 75 14 b8 14 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 d4 0e fc ff c3 48 83 ec 08 e8 7a 2b 00 00 [ 67.957732][ T8649] RSP: 002b:00007fff77908988 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 67.966229][ T8649] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000444110 [ 67.974436][ T8649] RDX: 0000000000000001 RSI: 00007fff77908990 RDI: 00000000000000f0 [ 67.982550][ T8649] RBP: 00007fff77908a50 R08: 0000000000000100 R09: 00007fff0000000b [ 67.990698][ T8649] R10: 00007fff0000000b R11: 0000000000000246 R12: 0000000000000000 [ 67.999316][ T8649] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 68.007393][ T8649] Modules linked in: [ 68.011311][ T8649] CR2: ffff887f9ce3cfff [ 68.015461][ T8649] ---[ end trace 91f60ba42bcd4a56 ]--- [ 68.021007][ T8649] RIP: 0010:netif_receive_generic_xdp+0x56c/0x11b0 [ 68.027614][ T8649] Code: 74 08 48 89 df e8 d4 3f 60 fb 4c 89 33 48 8b 9d 60 ff ff ff 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 14 3f 60 fb <48> 8b 33 83 e6 01 31 ff 48 89 b5 f0 fe ff ff e8 80 00 24 fb 48 89 [ 68.047813][ T8649] RSP: 0018:ffffc90001d97958 EFLAGS: 00010246 [ 68.053985][ T8649] RAX: 1ffff10ff39c79ff RBX: ffff887f9ce3cfff RCX: 0000000000000100 [ 68.062063][ T8649] RDX: ffff88809f915af0 RSI: 0000000000000000 RDI: ffffc90001d97a88 [ 68.070027][ T8649] RBP: ffffc90001d97a78 R08: ffffffff86527ef6 R09: ffffed10139c5a5d [ 68.078015][ T8649] R10: ffffed10139c5a5d R11: 0000000000000000 R12: ffff88809f915b48 [ 68.086329][ T8649] R13: ffff88809f915a80 R14: ffff88809ce2d000 R15: dffffc0000000000 [ 68.094297][ T8649] FS: 0000000001e97940(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 [ 68.103228][ T8649] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.109809][ T8649] CR2: ffff887f9ce3cfff CR3: 00000000a9229000 CR4: 00000000001406f0 [ 68.117794][ T8649] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.125762][ T8649] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.133856][ T8649] Kernel panic - not syncing: Fatal exception in interrupt [ 68.142717][ T8649] Kernel Offset: disabled [ 68.147107][ T8649] Rebooting in 86400 seconds..