2017/08/16 00:20:37 parsed 1 programs 2017/08/16 00:20:37 executed programs: 0 syzkaller login: [ 25.207017] hrtimer: interrupt took 13230 ns [ 25.378598] BUG: unable to handle kernel paging request at ffffff0100008000 [ 25.379145] IP: skb_release_data+0x3c2/0x790 [ 25.379458] PGD 644b067 [ 25.379461] P4D 644b067 [ 25.379707] PUD 0 [ 25.379900] [ 25.380269] Oops: 0000 [#1] SMP KASAN [ 25.380546] Dumping ftrace buffer: [ 25.380816] (ftrace buffer empty) [ 25.381086] Modules linked in: [ 25.381299] CPU: 2 PID: 3094 Comm: syz-executor0 Not tainted 4.13.0-rc5-next-20170815+ #3 [ 25.381867] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 25.382414] task: ffff88003bb52000 task.stack: ffff88003d238000 [ 25.382816] RIP: 0010:skb_release_data+0x3c2/0x790 [ 25.383143] RSP: 0018:ffff88003d23eda8 EFLAGS: 00010246 [ 25.383501] RAX: 1fffffe020001000 RBX: 0000000000000020 RCX: 1ffff10007a47de4 [ 25.383980] RDX: 0000000000000000 RSI: 1ffff1000d4a278f RDI: ffff880068ca0188 [ 25.384473] RBP: ffff88003d23eec8 R08: ffff88006a513cc8 R09: 0000000000000000 [ 25.385004] R10: ffff88003d23f6b0 R11: 0000000000000007 R12: dffffc0000000000 [ 25.385498] R13: ffffff0100008000 R14: ffff88006a513c00 R15: 0000000000000000 [ 25.385981] FS: 00007ff58bbd6700(0000) GS:ffff88006de00000(0000) knlGS:0000000000000000 [ 25.386535] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.386953] CR2: ffffff0100008000 CR3: 0000000038ae0000 CR4: 00000000000006e0 [ 25.387448] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.387927] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.388404] Call Trace: [ 25.388583] ? perf_tp_event+0x7f4/0xae0 [ 25.388854] ? perf_trace_run_bpf_submit+0x1a7/0x290 [ 25.389200] ? skb_tx_error+0x2c0/0x2c0 [ 25.389483] ? find_get_context.isra.84+0x670/0x670 [ 25.389842] ? tracing_generic_entry_update+0x15a/0x1d0 [ 25.390216] ? perf_trace_buf_update+0x66/0xb0 [ 25.390526] skb_release_all+0x4a/0x60 [ 25.390786] kfree_skb+0x15d/0x4c0 [ 25.391051] ? ip_rcv+0x40a/0x17d0 [ 25.391327] ? __kfree_skb+0x20/0x20 [ 25.391601] ? find_get_context.isra.84+0x670/0x670 [ 25.391951] ? __is_insn_slot_addr+0x1fc/0x330 [ 25.392288] ? lock_release+0xa40/0xa40 [ 25.392562] ip_rcv+0x40a/0x17d0 [ 25.392797] ? ip_local_deliver+0x6d0/0x6d0 [ 25.393153] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 25.393514] ? lock_release+0xa40/0xa40 [ 25.393782] ? __free_insn_slot+0x5c0/0x5c0 [ 25.394088] ? ip_local_deliver+0x6d0/0x6d0 [ 25.394432] __netif_receive_skb_core+0x19af/0x33d0 [ 25.394814] ? unwind_get_return_address+0x61/0xa0 [ 25.395173] ? nf_ingress+0x9f0/0x9f0 [ 25.395439] ? perf_trace_run_bpf_submit+0x1a7/0x290 [ 25.395798] ? perf_trace_run_bpf_submit+0x1ae/0x290 [ 25.396232] ? save_stack+0xa3/0xd0 [ 25.396552] ? perf_tp_event+0xae0/0xae0 [ 25.397155] ? kasan_slab_alloc+0x12/0x20 [ 25.397459] ? kmem_cache_alloc+0x12e/0x760 [ 25.397842] ? __build_skb+0x9d/0x450 [ 25.398111] ? memset+0x31/0x40 [ 25.398407] ? perf_trace_run_bpf_submit+0x1a7/0x290 [ 25.398794] ? perf_trace_run_bpf_submit+0x1a7/0x290 [ 25.399160] ? perf_trace_run_bpf_submit+0x1ae/0x290 [ 25.399517] ? perf_tp_event+0xae0/0xae0 [ 25.399825] ? memset+0x31/0x40 [ 25.400079] ? perf_trace_lock_acquire+0x445/0x900 [ 25.400458] ? perf_trace_lock+0x860/0x860 [ 25.400772] ? lock_acquire+0x1d5/0x580 [ 25.401065] ? netif_receive_skb_internal+0x1d7/0x5e0 [ 25.401479] ? pvclock_read_flags+0x160/0x160 [ 25.401814] ? lock_acquire+0x1d5/0x580 [ 25.402140] ? lock_acquire+0x1d5/0x580 [ 25.402447] ? netif_receive_skb_internal+0x93/0x5e0 [ 25.402883] ? ktime_get_with_offset+0x2c1/0x420 [ 25.403245] ? lock_release+0xa40/0xa40 [ 25.403524] ? do_gettimeofday+0x190/0x190 [ 25.403823] ? __build_skb+0x450/0x450 [ 25.404120] __netif_receive_skb+0x2c/0x1b0 [ 25.404407] ? __netif_receive_skb+0x2c/0x1b0 [ 25.404769] netif_receive_skb_internal+0x10b/0x5e0 [ 25.405115] ? dev_cpu_dead+0xb00/0xb00 [ 25.405362] ? tun_device_event+0xca0/0xca0 [ 25.405650] ? futex_wake+0x680/0x680 [ 25.405875] ? perf_trace_run_bpf_submit+0x1a7/0x290 [ 25.406203] netif_receive_skb+0xae/0x390 [ 25.406482] ? netif_receive_skb_internal+0x5e0/0x5e0 [ 25.406925] ? perf_trace_run_bpf_submit+0x1a7/0x290 [ 25.407294] ? memset+0x31/0x40 [ 25.407575] ? perf_trace_run_bpf_submit+0x1a7/0x290 [ 25.407974] ? tun_rx_batched.isra.43+0x5bd/0x860 [ 25.408288] tun_rx_batched.isra.43+0x5e7/0x860 [ 25.408603] ? skb_get_hash_perturb+0x9d0/0x9d0 [ 25.408914] ? tun_sock_write_space+0x370/0x370 [ 25.409220] ? tun_free_netdev+0x1b0/0x1b0 [ 25.409582] tun_get_user+0x11dd/0x2150 [ 25.409915] ? tun_flow_update+0xf70/0xf70 [ 25.410324] ? lock_acquire+0x1d5/0x580 [ 25.410711] ? lock_acquire+0x1d5/0x580 [ 25.411094] ? __tun_get+0x1ab/0x2e0 [ 25.411420] ? lock_downgrade+0x990/0x990 [ 25.411699] ? lock_release+0xa40/0xa40 [ 25.411964] ? __fget+0x35c/0x570 [ 25.412210] ? __tun_get+0x1d4/0x2e0 [ 25.412458] ? tun_chr_close+0x60/0x60 [ 25.412720] ? rcu_note_context_switch+0x710/0x710 [ 25.413052] tun_chr_write_iter+0xd8/0x190 [ 25.413336] __vfs_write+0x684/0x970 [ 25.413616] ? default_llseek+0x290/0x290 [ 25.414036] ? _cond_resched+0x14/0x30 [ 25.414432] ? avc_policy_seqno+0x9/0x20 [ 25.414840] ? selinux_file_permission+0x82/0x460 [ 25.415347] ? rw_verify_area+0xe5/0x2b0 [ 25.415751] ? __fdget_raw+0x20/0x20 [ 25.416127] vfs_write+0x189/0x510 [ 25.416476] SyS_write+0xef/0x220 [ 25.416809] ? SyS_socket+0x137/0x200 [ 25.417185] ? SyS_read+0x220/0x220 [ 25.417534] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 25.418243] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 25.418692] RIP: 0033:0x40bab1 [ 25.418993] RSP: 002b:00007ff58bbd5c00 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 25.419774] RAX: ffffffffffffffda RBX: 0000000000000036 RCX: 000000000040bab1 [ 25.420477] RDX: 0000000000000036 RSI: 0000000020002000 RDI: 0000000000000003 [ 25.421166] RBP: 0000000000708000 R08: 0000000000000000 R09: 0000000000000000 [ 25.421897] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 25.422635] R13: 0000000000000000 R14: 00007ff58bbd69c0 R15: 00007ff58bbd6700 [ 25.423364] Code: ff 49 bc 00 00 00 00 00 fc ff df 4c 8b 68 08 4d 85 ed 74 2b e8 60 77 8d fd 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 0f 85 97 03 00 00 <49> 8b 5d 00 4c 89 ef e8 42 cf ff ff 48 85 db 49 89 dd 75 d5 e8 [ 25.425503] RIP: skb_release_data+0x3c2/0x790 RSP: ffff88003d23eda8 [ 25.425964] CR2: ffffff0100008000 [ 25.426217] ---[ end trace 6c135ff2cec1880d ]--- [ 25.426530] Kernel panic - not syncing: Fatal exception in interrupt [ 25.427059] Dumping ftrace buffer: [ 25.427298] (ftrace buffer empty) [ 25.427543] Kernel Offset: disabled [ 25.427790] Rebooting in 86400 seconds..