Warning: Permanently added '10.128.1.24' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 96.222393][ T9779] IPVS: ftp: loaded support on port[0] = 21 [ 96.278046][ T9781] BUG: unable to handle page fault for address: ffff887f90f5afff [ 96.286144][ T9781] #PF: supervisor read access in kernel mode [ 96.292330][ T9781] #PF: error_code(0x0000) - not-present page [ 96.298290][ T9781] PGD 0 P4D 0 [ 96.301649][ T9781] Oops: 0000 [#1] PREEMPT SMP KASAN [ 96.306839][ T9781] CPU: 0 PID: 9781 Comm: syz-executor560 Not tainted 5.5.0-syzkaller #0 [ 96.315141][ T9781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.325203][ T9781] RIP: 0010:do_xdp_generic.part.0+0x479/0x17a0 [ 96.331354][ T9781] 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 [ 96.351052][ T9781] RSP: 0018:ffffc90000e77770 EFLAGS: 00010246 [ 96.357119][ T9781] RAX: dffffc0000000000 RBX: ffff888090f4b000 RCX: ffffffff0000feff [ 96.365079][ T9781] RDX: 1ffff10ff21eb5ff RSI: ffff888095846eb0 RDI: 0000000000000005 [ 96.373050][ T9781] RBP: ffffc90000e778b0 R08: ffff8880964a41c0 R09: ffffed10121e965d [ 96.381091][ T9781] R10: ffffed10121e965c R11: ffff888090f4b2e3 R12: ffff887f90f5afff [ 96.389314][ T9781] R13: 0000000000000100 R14: ffff888090f5afff R15: ffff888095846e40 [ 96.397288][ T9781] FS: 00000000021c7880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 96.406195][ T9781] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 96.412795][ T9781] CR2: ffff887f90f5afff CR3: 0000000091bd1000 CR4: 00000000001406f0 [ 96.420760][ T9781] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 96.428741][ T9781] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 96.436711][ T9781] Call Trace: [ 96.440006][ T9781] ? generic_xdp_tx+0x740/0x740 [ 96.444874][ T9781] ? rcu_read_lock_held+0x9c/0xb0 [ 96.449917][ T9781] do_xdp_generic+0x30/0x50 [ 96.454415][ T9781] tun_get_user+0x2bcd/0x4020 [ 96.459078][ T9781] ? __kasan_check_read+0x11/0x20 [ 96.464105][ T9781] ? aa_file_perm+0x617/0x1600 [ 96.468860][ T9781] ? tun_build_skb.isra.0+0x1480/0x1480 [ 96.474398][ T9781] ? rcu_read_lock_held+0x9c/0xb0 [ 96.479407][ T9781] ? __kasan_check_read+0x11/0x20 [ 96.484444][ T9781] tun_chr_write_iter+0xbd/0x156 [ 96.489394][ T9781] do_iter_readv_writev+0x5f8/0x8f0 [ 96.494849][ T9781] ? no_seek_end_llseek_size+0x70/0x70 [ 96.500331][ T9781] ? apparmor_file_permission+0x27/0x30 [ 96.505931][ T9781] ? rw_verify_area+0x126/0x360 [ 96.510874][ T9781] do_iter_write+0x184/0x610 [ 96.515713][ T9781] ? dup_iter+0x260/0x260 [ 96.520028][ T9781] ? mark_lock+0xc2/0x1220 [ 96.524463][ T9781] vfs_writev+0x1b3/0x2f0 [ 96.528784][ T9781] ? vfs_iter_write+0xb0/0xb0 [ 96.533464][ T9781] ? lock_downgrade+0x920/0x920 [ 96.538308][ T9781] ? handle_mm_fault+0x292/0xa50 [ 96.543273][ T9781] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 96.549600][ T9781] ? __fget_light+0x1ad/0x270 [ 96.554273][ T9781] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 96.560560][ T9781] do_writev+0x15b/0x330 [ 96.564844][ T9781] ? vfs_writev+0x2f0/0x2f0 [ 96.569360][ T9781] ? do_syscall_64+0x26/0x790 [ 96.574030][ T9781] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 96.580098][ T9781] ? do_syscall_64+0x26/0x790 [ 96.584770][ T9781] __x64_sys_writev+0x75/0xb0 [ 96.589985][ T9781] do_syscall_64+0xfa/0x790 [ 96.594474][ T9781] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 96.600350][ T9781] RIP: 0033:0x4420c0 [ 96.604228][ T9781] 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 51 8f 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 [ 96.630156][ T9781] RSP: 002b:00007ffe7ebfa9d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 96.639323][ T9781] RAX: ffffffffffffffda RBX: 00007ffe7ebfa9f0 RCX: 00000000004420c0 [ 96.647514][ T9781] RDX: 0000000000000001 RSI: 00007ffe7ebfaa20 RDI: 00000000000000f0 [ 96.655520][ T9781] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000004 [ 96.663484][ T9781] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000177d7 [ 96.671443][ T9781] R13: 0000000000402f10 R14: 0000000000000000 R15: 0000000000000000 [ 96.679411][ T9781] Modules linked in: [ 96.683288][ T9781] CR2: ffff887f90f5afff [ 96.687808][ T9781] ---[ end trace b1f095a32865ef63 ]--- [ 96.693882][ T9781] RIP: 0010:do_xdp_generic.part.0+0x479/0x17a0 [ 96.701238][ T9781] 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 [ 96.721017][ T9781] RSP: 0018:ffffc90000e77770 EFLAGS: 00010246 [ 96.727411][ T9781] RAX: dffffc0000000000 RBX: ffff888090f4b000 RCX: ffffffff0000feff [ 96.735599][ T9781] RDX: 1ffff10ff21eb5ff RSI: ffff888095846eb0 RDI: 0000000000000005 [ 96.743569][ T9781] RBP: ffffc90000e778b0 R08: ffff8880964a41c0 R09: ffffed10121e965d [ 96.752660][ T9781] R10: ffffed10121e965c R11: ffff888090f4b2e3 R12: ffff887f90f5afff [ 96.760635][ T9781] R13: 0000000000000100 R14: ffff888090f5afff R15: ffff888095846e40 [ 96.768595][ T9781] FS: 00000000021c7880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 96.777511][ T9781] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 96.784102][ T9781] CR2: ffff887f90f5afff CR3: 0000000091bd1000 CR4: 00000000001406f0 [ 96.792224][ T9781] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 96.800198][ T9781] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 96.808159][ T9781] Kernel panic - not syncing: Fatal exception in interrupt [ 96.816762][ T9781] Kernel Offset: disabled [ 96.821240][ T9781] Rebooting in 86400 seconds..