Debian GNU/Linux 7 syzkaller ttyS0 2017/09/04 14:40:17 parsed 1 programs 2017/09/04 14:40:17 executed programs: 0 syzkaller login: [ 34.107142] dev_remove_pack: ffff88003df5c9c0 not found 2017/09/04 14:40:22 executed programs: 384 2017/09/04 14:40:27 executed programs: 842 [ 40.740398] dev_remove_pack: ffff88003ca77d40 not found [ 42.854958] ------------[ cut here ]------------ [ 42.855500] kernel BUG at net/packet/af_packet.c:1521! [ 42.855905] invalid opcode: 0000 [#1] SMP KASAN [ 42.856455] Dumping ftrace buffer: [ 42.856934] (ftrace buffer empty) [ 42.857597] Modules linked in: [ 42.858196] CPU: 0 PID: 6590 Comm: syz-executor4 Not tainted 4.13.0-next-20170904+ #14 [ 42.859636] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 42.861110] task: ffff88006d054380 task.stack: ffff880067ed0000 [ 42.862214] RIP: 0010:__unregister_prot_hook+0x139/0x280 [ 42.863170] RSP: 0018:ffff880067ed7700 EFLAGS: 00010297 [ 42.864073] RAX: ffff88006d054380 RBX: 0000000000000006 RCX: 0000000000000000 [ 42.865287] RDX: 0000000000000000 RSI: ffffffff84d40ec1 RDI: ffff88003b5be910 [ 42.866611] RBP: ffff880067ed7740 R08: ffff880067ed7050 R09: ffff880067ed7048 [ 42.869310] R10: ffff880067ed6fc0 R11: 1ffff1000da0ab03 R12: ffff88003b5be8c0 [ 42.871159] R13: ffff88006c623280 R14: 0000000000000006 R15: dffffc0000000000 [ 42.872457] FS: 00007f093a613700(0000) GS:ffff88003ec00000(0000) knlGS:0000000000000000 [ 42.873944] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.875004] CR2: 0000000020bd4000 CR3: 000000003abe6000 CR4: 00000000000006f0 [ 42.876327] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.877723] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.879909] Call Trace: [ 42.880445] packet_set_ring+0xe7c/0x1b70 [ 42.881230] ? packet_poll+0x5c0/0x5c0 [ 42.881924] ? __might_fault+0xe0/0x1d0 [ 42.882645] ? SyS_mmap+0x16/0x20 [ 42.883284] ? lock_release+0xd70/0xd70 [ 42.883994] ? check_same_owner+0x320/0x320 [ 42.884810] ? __check_object_size+0x25d/0x4f0 [ 42.885687] ? __might_sleep+0x95/0x190 [ 42.886430] ? kasan_check_write+0x14/0x20 [ 42.887239] ? _copy_from_user+0x99/0x110 [ 42.887994] packet_setsockopt+0x6cd/0x1e80 [ 42.888810] ? fanout_add+0x1190/0x1190 [ 42.890735] ? lock_downgrade+0x990/0x990 [ 42.891227] ? __fget+0xbb/0x580 [ 42.893689] ? lock_release+0xd70/0xd70 [ 42.894198] ? __lock_is_held+0xbc/0x140 [ 42.894681] ? __fget+0x362/0x580 [ 42.895101] ? iterate_fd+0x3f0/0x3f0 [ 42.895547] ? userfaultfd_unmap_prep+0x540/0x540 [ 42.896103] ? do_mmap+0x34f/0xd50 [ 42.896454] ? sock_has_perm+0x29c/0x400 [ 42.897101] ? __fget_light+0x29d/0x390 [ 42.897557] ? selinux_tun_dev_create+0xc0/0xc0 [ 42.898124] ? security_mmap_file+0x14e/0x190 [ 42.898580] ? selinux_netlbl_socket_setsockopt+0x10c/0x460 [ 42.899230] ? selinux_netlbl_sock_rcv_skb+0x730/0x730 [ 42.899771] ? selinux_socket_setsockopt+0x64/0x80 [ 42.900622] SyS_setsockopt+0x189/0x360 [ 42.908854] ? SyS_setsockopt+0x189/0x360 [ 42.909232] ? SyS_recv+0x40/0x40 [ 42.909556] ? entry_SYSCALL_64_fastpath+0x5/0xbe [ 42.909981] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.910435] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.911841] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 42.912953] RIP: 0033:0x447299 [ 42.914493] RSP: 002b:00007f093a612c08 EFLAGS: 00000292 ORIG_RAX: 0000000000000036 [ 42.917880] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 0000000000447299 [ 42.918903] RDX: 0000000000000005 RSI: 0000000000000107 RDI: 000000000000000b [ 42.919720] RBP: 0000000000000082 R08: 000000000000047e R09: 0000000000000000 [ 42.924076] R10: 0000000020001000 R11: 0000000000000292 R12: 0000000000000000 [ 42.925342] R13: 0000000000000000 R14: 00007f093a6139c0 R15: 00007f093a613700 [ 42.926533] Code: 48 89 fa 48 c1 ea 03 42 80 3c 3a 00 0f 85 4e 01 00 00 4d 3b 6c c4 28 74 16 83 c3 01 e8 f1 17 2d fd 44 39 f3 75 cd e8 e7 17 2d fd <0f> 0b 31 c0 41 8d 5e ff 48 89 45 c0 e8 d6 17 2d fd 49 8d 7c dc [ 42.947872] RIP: __unregister_prot_hook+0x139/0x280 RSP: ffff880067ed7700 [ 42.949088] ---[ end trace 55c81f392f0b8515 ]--- [ 42.949905] Kernel panic - not syncing: Fatal exception [ 42.950879] Dumping ftrace buffer: [ 42.951460] (ftrace buffer empty) [ 42.952057] Kernel Offset: disabled [ 42.952438] Rebooting in 86400 seconds..