Warning: Permanently added '10.128.0.193' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 100.030116][ T9705] IPVS: ftp: loaded support on port[0] = 21 [ 100.077158][ T9705] BUG: unable to handle page fault for address: ffff887fa3af6fff [ 100.085059][ T9705] #PF: supervisor read access in kernel mode [ 100.091027][ T9705] #PF: error_code(0x0000) - not-present page [ 100.097010][ T9705] PGD 0 P4D 0 [ 100.100427][ T9705] Oops: 0000 [#1] PREEMPT SMP KASAN [ 100.105612][ T9705] CPU: 0 PID: 9705 Comm: syz-executor289 Not tainted 5.5.0-syzkaller #0 [ 100.113917][ T9705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 100.123981][ T9705] RIP: 0010:do_xdp_generic.part.0+0x499/0x18e0 [ 100.130139][ T9705] Code: ff 48 c1 ea 03 48 89 85 e8 fe ff ff 4c 89 f8 4c 29 f0 48 89 45 80 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 0f 85 9c 11 00 00 <48> 8b 03 48 8d 7b 0c 48 ba 00 00 00 00 00 fc ff df 48 89 85 d8 fe [ 100.149757][ T9705] RSP: 0018:ffffc90007a17770 EFLAGS: 00010246 [ 100.155812][ T9705] RAX: dffffc0000000000 RBX: ffff887fa3af6fff RCX: 00000000ffff0101 [ 100.163772][ T9705] RDX: 1ffff10ff475edff RSI: ffffffff8638a5b0 RDI: 0000000000000005 [ 100.171990][ T9705] RBP: ffffc90007a178b0 R08: ffff888098a82240 R09: ffffed101475ce5d [ 100.179955][ T9705] R10: ffffed101475ce5c R11: ffff8880a3ae72e3 R12: ffff88809fde1d40 [ 100.187921][ T9705] R13: 0000000000000000 R14: 0000000000000100 R15: ffff8880a3ae7100 [ 100.195973][ T9705] FS: 000000000103c880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 100.204888][ T9705] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 100.211455][ T9705] CR2: ffff887fa3af6fff CR3: 00000000a17d9000 CR4: 00000000001406f0 [ 100.219472][ T9705] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 100.227543][ T9705] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 100.235599][ T9705] Call Trace: [ 100.238880][ T9705] ? generic_xdp_tx+0x740/0x740 [ 100.243713][ T9705] ? rcu_read_lock_held+0x9c/0xb0 [ 100.248745][ T9705] do_xdp_generic+0x30/0x50 [ 100.253326][ T9705] tun_get_user+0x2bcd/0x4020 [ 100.258015][ T9705] ? __kasan_check_read+0x11/0x20 [ 100.263063][ T9705] ? aa_file_perm+0x617/0x1600 [ 100.267816][ T9705] ? tun_build_skb.isra.0+0x1480/0x1480 [ 100.273393][ T9705] ? rcu_read_lock_held+0x9c/0xb0 [ 100.278615][ T9705] ? __kasan_check_read+0x11/0x20 [ 100.283661][ T9705] tun_chr_write_iter+0xbd/0x156 [ 100.288614][ T9705] do_iter_readv_writev+0x5f8/0x8f0 [ 100.293818][ T9705] ? no_seek_end_llseek_size+0x70/0x70 [ 100.299628][ T9705] ? apparmor_file_permission+0x27/0x30 [ 100.305212][ T9705] ? rw_verify_area+0x126/0x360 [ 100.310054][ T9705] do_iter_write+0x184/0x610 [ 100.314626][ T9705] ? dup_iter+0x260/0x260 [ 100.319098][ T9705] ? sendmsg_copy_msghdr+0x70/0x70 [ 100.324207][ T9705] vfs_writev+0x1b3/0x2f0 [ 100.328570][ T9705] ? vfs_iter_write+0xb0/0xb0 [ 100.333251][ T9705] ? __do_sys_bpf+0x938/0x41e0 [ 100.338012][ T9705] ? __fget_light+0x1ad/0x270 [ 100.342722][ T9705] ? __fdget+0x1b/0x20 [ 100.346817][ T9705] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 100.353079][ T9705] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.359332][ T9705] ? __fget_light+0x1ad/0x270 [ 100.364037][ T9705] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.370269][ T9705] do_writev+0x15b/0x330 [ 100.374542][ T9705] ? vfs_writev+0x2f0/0x2f0 [ 100.379032][ T9705] ? do_syscall_64+0x26/0x790 [ 100.383691][ T9705] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 100.389737][ T9705] ? do_syscall_64+0x26/0x790 [ 100.394462][ T9705] __x64_sys_writev+0x75/0xb0 [ 100.399128][ T9705] do_syscall_64+0xfa/0x790 [ 100.403719][ T9705] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 100.409680][ T9705] RIP: 0033:0x4418c0 [ 100.413711][ T9705] 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 51 97 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 [ 100.433413][ T9705] RSP: 002b:00007ffed248b2e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 100.441813][ T9705] RAX: ffffffffffffffda RBX: 00007ffed248b300 RCX: 00000000004418c0 [ 100.449825][ T9705] RDX: 0000000000000001 RSI: 00007ffed248b330 RDI: 00000000000000f0 [ 100.457781][ T9705] RBP: 0000000000000003 R08: 00000000bb1414ac R09: 00000000bb1414ac [ 100.465733][ T9705] R10: 00000000bb1414ac R11: 0000000000000246 R12: 0000000000000000 [ 100.473948][ T9705] R13: 0000000000402cb0 R14: 0000000000000000 R15: 0000000000000000 [ 100.482086][ T9705] Modules linked in: [ 100.485961][ T9705] CR2: ffff887fa3af6fff [ 100.490120][ T9705] ---[ end trace da09ed38046ae0f3 ]--- [ 100.495922][ T9705] RIP: 0010:do_xdp_generic.part.0+0x499/0x18e0 [ 100.502066][ T9705] Code: ff 48 c1 ea 03 48 89 85 e8 fe ff ff 4c 89 f8 4c 29 f0 48 89 45 80 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 0f 85 9c 11 00 00 <48> 8b 03 48 8d 7b 0c 48 ba 00 00 00 00 00 fc ff df 48 89 85 d8 fe [ 100.521798][ T9705] RSP: 0018:ffffc90007a17770 EFLAGS: 00010246 [ 100.527910][ T9705] RAX: dffffc0000000000 RBX: ffff887fa3af6fff RCX: 00000000ffff0101 [ 100.535869][ T9705] RDX: 1ffff10ff475edff RSI: ffffffff8638a5b0 RDI: 0000000000000005 [ 100.543894][ T9705] RBP: ffffc90007a178b0 R08: ffff888098a82240 R09: ffffed101475ce5d [ 100.551892][ T9705] R10: ffffed101475ce5c R11: ffff8880a3ae72e3 R12: ffff88809fde1d40 [ 100.559891][ T9705] R13: 0000000000000000 R14: 0000000000000100 R15: ffff8880a3ae7100 [ 100.568030][ T9705] FS: 000000000103c880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 100.576934][ T9705] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 100.583507][ T9705] CR2: ffff887fa3af6fff CR3: 00000000a17d9000 CR4: 00000000001406f0 [ 100.591491][ T9705] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 100.599525][ T9705] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 100.610022][ T9705] Kernel panic - not syncing: Fatal exception in interrupt [ 100.618689][ T9705] Kernel Offset: disabled [ 100.623213][ T9705] Rebooting in 86400 seconds..