Warning: Permanently added '10.128.0.155' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 105.032966][ T9780] IPVS: ftp: loaded support on port[0] = 21 [ 105.082319][ T9781] netlink: 'syz-executor766': attribute type 1 has an invalid length. [ 105.091114][ T9781] netlink: 'syz-executor766': attribute type 1 has an invalid length. [ 105.099273][ T9781] netlink: 'syz-executor766': attribute type 1 has an invalid length. [ 105.107672][ T9781] netlink: 'syz-executor766': attribute type 1 has an invalid length. [ 105.116640][ T9781] netlink: 'syz-executor766': attribute type 1 has an invalid length. executing program [ 105.124969][ T9781] netlink: 'syz-executor766': attribute type 1 has an invalid length. [ 105.134690][ T9781] netlink: 'syz-executor766': attribute type 1 has an invalid length. [ 105.143191][ T9781] netlink: 'syz-executor766': attribute type 1 has an invalid length. [ 105.151510][ T9781] netlink: 'syz-executor766': attribute type 1 has an invalid length. [ 105.160089][ T9781] netlink: 'syz-executor766': attribute type 1 has an invalid length. [ 105.205124][ T9782] BUG: unable to handle page fault for address: ffff887f976c87ff [ 105.213135][ T9782] #PF: supervisor read access in kernel mode [ 105.219103][ T9782] #PF: error_code(0x0000) - not-present page [ 105.225079][ T9782] PGD 0 P4D 0 [ 105.228439][ T9782] Oops: 0000 [#1] PREEMPT SMP KASAN [ 105.233641][ T9782] CPU: 1 PID: 9782 Comm: syz-executor766 Not tainted 5.5.0-rc7-syzkaller #0 [ 105.242540][ T9782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 105.253025][ T9782] RIP: 0010:do_xdp_generic.part.0+0x479/0x1790 [ 105.259168][ T9782] 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 9e 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 [ 105.278969][ T9782] RSP: 0018:ffffc90000f77770 EFLAGS: 00010246 [ 105.285719][ T9782] RAX: dffffc0000000000 RBX: ffff8880976b8800 RCX: ffffffff0000feff [ 105.293703][ T9782] RDX: 1ffff10ff2ed90ff RSI: ffff8880a6b27db0 RDI: 0000000000000005 [ 105.301752][ T9782] RBP: ffffc90000f778b0 R08: ffff8880983741c0 R09: ffffed1012ed715d [ 105.309996][ T9782] R10: ffffed1012ed715c R11: ffff8880976b8ae3 R12: ffff887f976c87ff [ 105.318004][ T9782] R13: 0000000000000100 R14: ffff8880976c87ff R15: ffff8880a6b27d40 [ 105.325972][ T9782] FS: 0000000000934880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 105.334889][ T9782] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.341811][ T9782] CR2: ffff887f976c87ff CR3: 000000009f6d9000 CR4: 00000000001406e0 [ 105.349773][ T9782] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 105.357865][ T9782] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 105.366173][ T9782] Call Trace: [ 105.369582][ T9782] ? generic_xdp_tx+0x740/0x740 [ 105.374723][ T9782] ? rcu_read_lock_held+0x9c/0xb0 [ 105.379742][ T9782] do_xdp_generic+0x30/0x50 [ 105.384263][ T9782] tun_get_user+0x2bcd/0x3fc0 [ 105.388922][ T9782] ? __kasan_check_read+0x11/0x20 [ 105.394206][ T9782] ? aa_file_perm+0x617/0x1600 [ 105.398958][ T9782] ? tun_build_skb.isra.0+0x1470/0x1470 [ 105.404503][ T9782] ? rcu_read_lock_held+0x9c/0xb0 [ 105.409626][ T9782] ? __kasan_check_read+0x11/0x20 [ 105.414745][ T9782] tun_chr_write_iter+0xbd/0x156 [ 105.420349][ T9782] do_iter_readv_writev+0x5f8/0x8f0 [ 105.425698][ T9782] ? no_seek_end_llseek_size+0x70/0x70 [ 105.431210][ T9782] ? apparmor_file_permission+0x27/0x30 [ 105.436754][ T9782] ? rw_verify_area+0x126/0x360 [ 105.441746][ T9782] do_iter_write+0x184/0x610 [ 105.446372][ T9782] ? dup_iter+0x260/0x260 [ 105.450850][ T9782] vfs_writev+0x1b3/0x2f0 [ 105.455177][ T9782] ? vfs_iter_write+0xb0/0xb0 [ 105.459843][ T9782] ? find_held_lock+0x35/0x130 [ 105.464813][ T9782] ? __do_page_fault+0x56a/0xd80 [ 105.469853][ T9782] ? lock_downgrade+0x920/0x920 [ 105.475065][ T9782] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 105.481317][ T9782] ? __fget_light+0x1a9/0x230 [ 105.486275][ T9782] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 105.492538][ T9782] do_writev+0x15b/0x330 [ 105.496769][ T9782] ? vfs_writev+0x2f0/0x2f0 [ 105.501789][ T9782] ? do_syscall_64+0x26/0x790 [ 105.507015][ T9782] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 105.514571][ T9782] ? do_syscall_64+0x26/0x790 [ 105.520581][ T9782] __x64_sys_writev+0x75/0xb0 [ 105.525583][ T9782] do_syscall_64+0xfa/0x790 [ 105.530100][ T9782] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 105.535992][ T9782] RIP: 0033:0x442540 [ 105.539876][ T9782] Code: 05 48 3d 01 f0 ff ff 0f 83 5d 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 3d f1 8a 29 00 00 75 14 b8 14 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 34 09 fc ff c3 48 83 ec 08 e8 ba 2b 00 00 [ 105.559499][ T9782] RSP: 002b:00007ffeafcde008 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 105.567997][ T9782] RAX: ffffffffffffffda RBX: 00007ffeafcde020 RCX: 0000000000442540 [ 105.576041][ T9782] RDX: 0000000000000001 RSI: 00007ffeafcde050 RDI: 00000000000000f0 [ 105.586271][ T9782] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000004 [ 105.595172][ T9782] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000019a38 [ 105.603977][ T9782] R13: 0000000000403390 R14: 0000000000000000 R15: 0000000000000000 [ 105.611959][ T9782] Modules linked in: [ 105.615906][ T9782] CR2: ffff887f976c87ff [ 105.620140][ T9782] ---[ end trace 8e414a29b9f15923 ]--- [ 105.626661][ T9782] RIP: 0010:do_xdp_generic.part.0+0x479/0x1790 [ 105.632862][ T9782] 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 9e 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 [ 105.653104][ T9782] RSP: 0018:ffffc90000f77770 EFLAGS: 00010246 [ 105.659306][ T9782] RAX: dffffc0000000000 RBX: ffff8880976b8800 RCX: ffffffff0000feff [ 105.667270][ T9782] RDX: 1ffff10ff2ed90ff RSI: ffff8880a6b27db0 RDI: 0000000000000005 [ 105.675247][ T9782] RBP: ffffc90000f778b0 R08: ffff8880983741c0 R09: ffffed1012ed715d [ 105.683359][ T9782] R10: ffffed1012ed715c R11: ffff8880976b8ae3 R12: ffff887f976c87ff [ 105.691549][ T9782] R13: 0000000000000100 R14: ffff8880976c87ff R15: ffff8880a6b27d40 [ 105.699608][ T9782] FS: 0000000000934880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 105.708612][ T9782] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.715456][ T9782] CR2: ffff887f976c87ff CR3: 000000009f6d9000 CR4: 00000000001406e0 [ 105.723452][ T9782] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 105.731499][ T9782] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 105.740486][ T9782] Kernel panic - not syncing: Fatal exception in interrupt [ 105.749333][ T9782] Kernel Offset: disabled [ 105.753674][ T9782] Rebooting in 86400 seconds..