Warning: Permanently added '10.128.0.187' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 90.325131][ T9738] IPVS: ftp: loaded support on port[0] = 21 [ 90.369668][ T9738] BUG: unable to handle page fault for address: ffff887f9ed01fff [ 90.377396][ T9738] #PF: supervisor read access in kernel mode [ 90.383350][ T9738] #PF: error_code(0x0000) - not-present page [ 90.389301][ T9738] PGD 0 P4D 0 [ 90.392653][ T9738] Oops: 0000 [#1] PREEMPT SMP KASAN [ 90.397834][ T9738] CPU: 1 PID: 9738 Comm: syz-executor899 Not tainted 5.5.0-syzkaller #0 [ 90.406190][ T9738] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.417471][ T9738] RIP: 0010:do_xdp_generic.part.0+0x479/0x17a0 [ 90.423666][ T9738] Code: 03 48 89 85 f0 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 a5 78 ff ff ff 80 3c 02 00 48 89 8d c8 fe ff ff 0f 85 ac 10 00 00 <49> 8b 04 24 49 8d 7c 24 0c 48 ba 00 00 00 00 00 fc ff df 48 89 85 [ 90.443254][ T9738] RSP: 0018:ffffc900064cf770 EFLAGS: 00010246 [ 90.449306][ T9738] RAX: dffffc0000000000 RBX: ffff88809ecf2000 RCX: ffffffff0000feff [ 90.457260][ T9738] RDX: 1ffff10ff3da03ff RSI: ffff8880989d15f0 RDI: 0000000000000005 [ 90.465224][ T9738] RBP: ffffc900064cf8b0 R08: ffff88809fbb2300 R09: ffffed1013d9e45d [ 90.473172][ T9738] R10: ffffed1013d9e45c R11: ffff88809ecf22e3 R12: ffff887f9ed01fff [ 90.481121][ T9738] R13: 0000000000000100 R14: ffff88809ed01fff R15: ffff8880989d1580 [ 90.489070][ T9738] FS: 00000000024b6880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 90.497988][ T9738] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.504550][ T9738] CR2: ffff887f9ed01fff CR3: 0000000097b23000 CR4: 00000000001406e0 [ 90.512552][ T9738] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.521903][ T9738] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.531358][ T9738] Call Trace: [ 90.534671][ T9738] ? generic_xdp_tx+0x740/0x740 [ 90.539796][ T9738] ? rcu_read_lock_held+0x9c/0xb0 [ 90.544829][ T9738] do_xdp_generic+0x30/0x50 [ 90.549368][ T9738] tun_get_user+0x2bcd/0x4020 [ 90.554027][ T9738] ? __kasan_check_read+0x11/0x20 [ 90.559700][ T9738] ? aa_file_perm+0x617/0x1600 [ 90.564455][ T9738] ? tun_build_skb.isra.0+0x1480/0x1480 [ 90.569984][ T9738] ? rcu_read_lock_held+0x9c/0xb0 [ 90.575165][ T9738] ? __kasan_check_read+0x11/0x20 [ 90.580194][ T9738] tun_chr_write_iter+0xbd/0x156 [ 90.585183][ T9738] do_iter_readv_writev+0x5f8/0x8f0 [ 90.590373][ T9738] ? no_seek_end_llseek_size+0x70/0x70 [ 90.595812][ T9738] ? apparmor_file_permission+0x27/0x30 [ 90.601445][ T9738] ? rw_verify_area+0x126/0x360 [ 90.606319][ T9738] do_iter_write+0x184/0x610 [ 90.610910][ T9738] ? dup_iter+0x260/0x260 [ 90.615279][ T9738] ? sendmsg_copy_msghdr+0x70/0x70 [ 90.620382][ T9738] vfs_writev+0x1b3/0x2f0 [ 90.624690][ T9738] ? vfs_iter_write+0xb0/0xb0 [ 90.629360][ T9738] ? __do_sys_bpf+0x938/0x41e0 [ 90.634164][ T9738] ? __fget_light+0x1ad/0x270 [ 90.638864][ T9738] ? __fdget+0x1b/0x20 [ 90.642933][ T9738] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 90.649162][ T9738] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 90.655393][ T9738] ? __fget_light+0x1ad/0x270 [ 90.660094][ T9738] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 90.666338][ T9738] do_writev+0x15b/0x330 [ 90.670586][ T9738] ? vfs_writev+0x2f0/0x2f0 [ 90.675093][ T9738] ? do_syscall_64+0x26/0x790 [ 90.679777][ T9738] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 90.685829][ T9738] ? do_syscall_64+0x26/0x790 [ 90.690550][ T9738] __x64_sys_writev+0x75/0xb0 [ 90.695226][ T9738] do_syscall_64+0xfa/0x790 [ 90.699731][ T9738] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 90.705648][ T9738] RIP: 0033:0x441660 [ 90.709532][ T9738] 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 b1 99 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 [ 90.733154][ T9738] RSP: 002b:00007ffe1d58bc98 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 90.741550][ T9738] RAX: ffffffffffffffda RBX: 00007ffe1d58bcb0 RCX: 0000000000441660 [ 90.749512][ T9738] RDX: 0000000000000001 RSI: 00007ffe1d58bce0 RDI: 00000000000000f0 [ 90.757512][ T9738] RBP: 0000000000000003 R08: 00000000bb1414ac R09: 00000000bb1414ac [ 90.765474][ T9738] R10: 00000000bb1414ac R11: 0000000000000246 R12: 0000000000000000 [ 90.773477][ T9738] R13: 0000000000402a50 R14: 0000000000000000 R15: 0000000000000000 [ 90.781452][ T9738] Modules linked in: [ 90.785394][ T9738] CR2: ffff887f9ed01fff [ 90.789607][ T9738] ---[ end trace eaca21401d67bc86 ]--- [ 90.795065][ T9738] RIP: 0010:do_xdp_generic.part.0+0x479/0x17a0 [ 90.801222][ T9738] Code: 03 48 89 85 f0 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 a5 78 ff ff ff 80 3c 02 00 48 89 8d c8 fe ff ff 0f 85 ac 10 00 00 <49> 8b 04 24 49 8d 7c 24 0c 48 ba 00 00 00 00 00 fc ff df 48 89 85 [ 90.820945][ T9738] RSP: 0018:ffffc900064cf770 EFLAGS: 00010246 [ 90.827006][ T9738] RAX: dffffc0000000000 RBX: ffff88809ecf2000 RCX: ffffffff0000feff [ 90.834987][ T9738] RDX: 1ffff10ff3da03ff RSI: ffff8880989d15f0 RDI: 0000000000000005 [ 90.843041][ T9738] RBP: ffffc900064cf8b0 R08: ffff88809fbb2300 R09: ffffed1013d9e45d [ 90.850995][ T9738] R10: ffffed1013d9e45c R11: ffff88809ecf22e3 R12: ffff887f9ed01fff [ 90.858961][ T9738] R13: 0000000000000100 R14: ffff88809ed01fff R15: ffff8880989d1580 [ 90.866918][ T9738] FS: 00000000024b6880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 90.875962][ T9738] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.882538][ T9738] CR2: ffff887f9ed01fff CR3: 0000000097b23000 CR4: 00000000001406e0 [ 90.890543][ T9738] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.898513][ T9738] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.906479][ T9738] Kernel panic - not syncing: Fatal exception in interrupt [ 90.914921][ T9738] Kernel Offset: disabled [ 90.919268][ T9738] Rebooting in 86400 seconds..