[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.564969] random: sshd: uninitialized urandom read (32 bytes read, 33 bits of entropy available) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 25.978941] random: sshd: uninitialized urandom read (32 bytes read, 39 bits of entropy available) [ 26.298272] random: sshd: uninitialized urandom read (32 bytes read, 39 bits of entropy available) [ 26.858623] random: sshd: uninitialized urandom read (32 bytes read, 57 bits of entropy available) [ 27.024024] random: sshd: uninitialized urandom read (32 bytes read, 60 bits of entropy available) Warning: Permanently added '10.128.10.1' (ECDSA) to the list of known hosts. [ 32.540217] random: sshd: uninitialized urandom read (32 bytes read, 67 bits of entropy available) executing program [ 34.042397] vmalloc: allocation failure, allocated 3111116800 of 4035407872 bytes [ 34.050217] syz-executor902: page allocation failure: order:0, mode:0x24000c2 [ 34.057532] CPU: 0 PID: 3791 Comm: syz-executor902 Not tainted 4.4.146-g1396226 #79 [ 34.065319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.074668] 0000000000000000 b99700ed090f5db7 ffff8800ac16f860 ffffffff81e1292d [ 34.082704] 1ffff1001582df0f dffffc0000000000 00000000024000c2 0000000000000000 [ 34.090746] ffffffff83aae2c0 ffff8800ac16f970 ffffffff81513e4b 0000000000000000 [ 34.098786] Call Trace: [ 34.101366] [] dump_stack+0xc1/0x124 [ 34.106730] [] warn_alloc_failed.cold.116+0x83/0x149 [ 34.113487] [] ? zone_watermark_ok_safe+0x290/0x290 [ 34.120158] [] ? retint_kernel+0x2d/0x2d [ 34.125869] [] __vmalloc_node_range+0x3fa/0x630 [ 34.132189] [] ? xt_alloc_entry_offsets+0x41/0x60 [ 34.138678] [] vmalloc+0x5b/0x70 [ 34.143687] [] ? xt_alloc_entry_offsets+0x41/0x60 [ 34.150182] [] xt_alloc_entry_offsets+0x41/0x60 [ 34.156496] [] translate_table+0x2fe/0x1c20 [ 34.162464] [] ? s_show+0x3c0/0x3c0 [ 34.167738] [] ? kasan_unpoison_shadow+0x35/0x50 [ 34.174137] [] ? get_counters+0x550/0x550 [ 34.179932] [] ? check_stack_object+0x110/0x150 [ 34.186244] [] ? __check_object_size+0x217/0x327 [ 34.192647] [] do_arpt_set_ctl+0x2b2/0x5b0 [ 34.198521] [] ? __do_replace+0x780/0x780 [ 34.204311] [] ? __mutex_unlock_slowpath+0x209/0x3b0 [ 34.211063] [] ? __ww_mutex_lock+0x14c0/0x14c0 [ 34.217291] [] ? mutex_unlock+0x9/0x10 [ 34.222825] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 34.229923] [] nf_setsockopt+0x6d/0xc0 [ 34.235454] [] ip_setsockopt+0x9a/0xb0 [ 34.240980] [] udp_setsockopt+0x4a/0x90 [ 34.246595] [] sock_common_setsockopt+0x9a/0xe0 [ 34.252914] [] SyS_setsockopt+0x166/0x260 [ 34.258707] [] ? SyS_recv+0x40/0x40 [ 34.263978] [] ? int_ret_from_sys_call+0x52/0xa3 [ 34.270376] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 34.276866] [] entry_SYSCALL_64_fastpath+0x22/0x9e [ 34.285053] Mem-Info: [ 34.289695] active_anon:2503 inactive_anon:43 isolated_anon:0 [ 34.289695] active_file:2470 inactive_file:3398 isolated_file:0 [ 34.289695] unevictable:0 dirty:3706 writeback:1 unstable:0 [ 34.289695] slab_reclaimable:4826 slab_unreclaimable:57063 [ 34.289695] mapped:1785 shmem:50 pagetables:268 bounce:0 [ 34.289695] free:54 free_pcp:0 free_cma:0 [ 34.342930] DMA free:0kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15992kB managed:15904kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes [ 34.384852] lowmem_reserve[]: 0 2908 6409 6409 [ 34.391637] DMA32 free:0kB min:30596kB low:38244kB high:45892kB active_anon:4504kB inactive_anon:112kB active_file:6368kB inactive_file:7636kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3129292kB managed:2980432kB mlocked:0kB dirty:8356kB writeback:4kB mapped:4668kB shmem:120kB slab_reclaimable:9148kB slab_unreclaimable:106036kB kernel_stack:1632kB pagetables:556kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:84916 all_unreclaimable? yes [ 34.437072] lowmem_reserve[]: 0 0 3500 3500 [ 34.444168] Normal free:0kB min:36820kB low:46024kB high:55228kB active_anon:5556kB inactive_anon:60kB active_file:3380kB inactive_file:6012kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:4718592kB managed:3584660kB mlocked:0kB dirty:6392kB writeback:0kB mapped:2472kB shmem:80kB slab_reclaimable:10156kB slab_unreclaimable:122152kB kernel_stack:2432kB pagetables:516kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:58236 all_unreclaimable? yes [ 34.490710] lowmem_reserve[]: 0 0 0 0 [ 34.496701] DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 34.511898] DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 34.527567] Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 34.539204] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 34.547770] 5919 total pagecache pages [ 34.551671] 0 pages in swap cache [ 34.555114] Swap cache stats: add 0, delete 0, find 0/0 [ 34.560482] Free swap = 0kB [ 34.563488] Total swap = 0kB [ 34.566493] 1965969 pages RAM [ 34.569598] 0 pages HighMem/MovableOnly [ 34.573557] 320720 pages reserved [ 34.950457] ODEBUG: Out of memory. ODEBUG disabled executing program Connection to 10.128.10.1 closed by remote host.