INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-next-kasan-gce-1,10.128.0.27' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 31.119230] ------------[ cut here ]------------ [ 31.123992] kernel BUG at mm/slab.c:3256! [ 31.128108] invalid opcode: 0000 [#1] SMP KASAN [ 31.132742] Dumping ftrace buffer: [ 31.136245] (ftrace buffer empty) [ 31.139923] Modules linked in: [ 31.143081] CPU: 0 PID: 2984 Comm: syzkaller358876 Not tainted 4.13.0-rc7-next-20170901+ #13 [ 31.151620] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.160940] task: ffff8801ce8b4180 task.stack: ffff8801ce408000 [ 31.166966] RIP: 0010:____cache_alloc_node+0x1d7/0x1e0 [ 31.172205] RSP: 0018:ffff8801ce40f538 EFLAGS: 00010092 [ 31.177532] RAX: fffffffffffffe00 RBX: 00000000014012c0 RCX: 0000000000000000 [ 31.184779] RDX: 00000000fffffe00 RSI: 00000000014012c0 RDI: ffff8801dac004c0 [ 31.192012] RBP: ffff8801ce40f5c0 R08: 0000000000400000 R09: 1ffff10039c81e7d [ 31.199248] R10: ffff8801ce8b4180 R11: 0000000000000000 R12: ffff8801dac004c0 [ 31.206484] R13: ffff8801dac004c0 R14: 0000000000000000 R15: 00000000fffffe00 [ 31.213719] FS: 0000000001afa880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 31.221907] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.227753] CR2: 0000000020ff2fe4 CR3: 00000001d0401000 CR4: 00000000001406f0 [ 31.234988] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.242223] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.249456] Call Trace: [ 31.252005] ? kmem_cache_alloc_node_trace+0xe9/0x760 [ 31.257162] ? rcu_note_context_switch+0x710/0x710 [ 31.262063] alloc_vmap_area+0x11c/0x8c0 [ 31.266104] ? __get_vm_area_node+0xae/0x340 [ 31.270484] ? purge_vmap_area_lazy+0x40/0x40 [ 31.274947] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.279928] ? trace_hardirqs_on+0xd/0x10 [ 31.284044] __get_vm_area_node+0xe8/0x340 [ 31.288241] ? do_raw_spin_trylock+0x190/0x190 [ 31.292792] __vmalloc_node_range+0xa3/0x730 [ 31.297166] ? sock_map_alloc+0x4d2/0x610 [ 31.301281] ? bpf_map_area_free+0x20/0x20 [ 31.305482] ? sock_map_alloc+0x4d2/0x610 [ 31.309592] __vmalloc_node_flags_caller+0x50/0x60 [ 31.314487] ? sock_map_alloc+0x4d2/0x610 [ 31.318609] bpf_map_area_alloc+0x62/0x80 [ 31.322730] sock_map_alloc+0x4d2/0x610 [ 31.326678] SyS_bpf+0xc56/0x4c50 [ 31.330101] ? bpf_prog_get+0x20/0x20 [ 31.333881] ? lock_downgrade+0x990/0x990 [ 31.337994] ? lru_cache_add_active_or_unevictable+0x20e/0x540 [ 31.343940] ? add_page_to_unevictable_list+0x730/0x730 [ 31.349265] ? __handle_mm_fault+0x2780/0x39c0 [ 31.353822] ? do_raw_spin_trylock+0x190/0x190 [ 31.358372] ? lockdep_init_map+0x3d/0x70 [ 31.362488] ? check_noncircular+0x20/0x20 [ 31.366690] ? _raw_spin_unlock+0x22/0x30 [ 31.370804] ? __handle_mm_fault+0x587/0x39c0 [ 31.375265] ? __pmd_alloc+0x4e0/0x4e0 [ 31.379120] ? find_held_lock+0x39/0x1d0 [ 31.383149] ? lock_downgrade+0x990/0x990 [ 31.387269] ? handle_mm_fault+0x4a2/0x860 [ 31.391466] ? down_read_trylock+0xdb/0x170 [ 31.395752] ? __handle_mm_fault+0x39c0/0x39c0 [ 31.400304] ? vmacache_find+0x61/0x270 [ 31.404254] ? vmacache_update+0xfe/0x130 [ 31.408372] ? up_read+0x1a/0x40 [ 31.411709] ? __do_page_fault+0x35b/0xb60 [ 31.415916] ? do_page_fault+0xee/0x720 [ 31.419857] ? __do_page_fault+0xb60/0xb60 [ 31.424062] ? SyS_mmap_pgoff+0x243/0x5f0 [ 31.428174] ? lockdep_sys_exit+0x47/0xf0 [ 31.432288] ? entry_SYSCALL_64_fastpath+0x5/0xbe [ 31.437096] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.441820] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 31.446538] RIP: 0033:0x43fcd9 [ 31.449693] RSP: 002b:00007ffc1fcf1c38 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 31.457372] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcd9 [ 31.464606] RDX: 000000000000001c RSI: 0000000020ff2fe4 RDI: 0000000000000000 [ 31.471871] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000 [ 31.479110] R10: ffffffffffffffff R11: 0000000000000217 R12: 0000000000401640 [ 31.486345] R13: 00000000004016d0 R14: 0000000000000000 R15: 0000000000000000 [ 31.493587] Code: 83 c2 01 89 50 18 4c 03 70 08 e8 15 f4 ff ff 4d 85 f6 0f 85 3e ff ff ff 44 89 fe 4c 89 ef e8 81 fb ff ff 49 89 c6 e9 2b ff ff ff <0f> 0b 0f 0b 0f 0b 0f 1f 00 55 48 89 e5 41 57 41 56 41 55 41 54 [ 31.512657] RIP: ____cache_alloc_node+0x1d7/0x1e0 RSP: ffff8801ce40f538 [ 31.519375] ---[ end trace f3fcd109b8cd6266 ]--- [ 31.524094] Kernel panic - not syncing: Fatal exception [ 31.529692] Dumping ftrace buffer: [ 31.533198] (ftrace buffer empty) [ 31.536873] Kernel Offset: disabled [ 31.540463] Rebooting in 86400 seconds..