[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 20.335594] random: sshd: uninitialized urandom read (32 bytes read, 31 bits of entropy available) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 27.683301] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 27.985114] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 28.568798] random: sshd: uninitialized urandom read (32 bytes read, 57 bits of entropy available) [ 28.732135] random: sshd: uninitialized urandom read (32 bytes read, 59 bits of entropy available) Warning: Permanently added '10.128.10.49' (ECDSA) to the list of known hosts. [ 34.196894] random: sshd: uninitialized urandom read (32 bytes read, 64 bits of entropy available) executing program [ 35.839992] vmalloc: allocation failure, allocated 3454001152 of 4491923456 bytes [ 35.847671] syz-executor380: page allocation failure: order:0, mode:0x24000c2 [ 35.854998] CPU: 1 PID: 3712 Comm: syz-executor380 Not tainted 4.4.146-g1396226 #79 [ 35.862784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.872128] 0000000000000000 7918c72d2978c265 ffff8800b1a378b0 ffffffff81e1292d [ 35.880200] 1ffff10016346f19 dffffc0000000000 00000000024000c2 0000000000000000 [ 35.888248] ffffffff83aae2c0 ffff8800b1a379c0 ffffffff81513e4b ffffffff00000000 [ 35.896325] Call Trace: [ 35.898908] [] dump_stack+0xc1/0x124 [ 35.904267] [] warn_alloc_failed.cold.116+0x83/0x149 [ 35.911026] [] ? zone_watermark_ok_safe+0x290/0x290 [ 35.917698] [] __vmalloc_node_range+0x3fa/0x630 [ 35.924014] [] ? xt_alloc_entry_offsets+0x41/0x60 [ 35.930501] [] vmalloc+0x5b/0x70 [ 35.935511] [] ? xt_alloc_entry_offsets+0x41/0x60 [ 35.941993] [] xt_alloc_entry_offsets+0x41/0x60 [ 35.948306] [] translate_table+0x215/0x16b0 [ 35.954274] [] ? ipt_alloc_initial_table+0x640/0x640 [ 35.961019] [] ? __might_fault+0x114/0x1d0 [ 35.966900] [] ? __check_object_size+0x217/0x327 [ 35.973297] [] do_ipt_set_ctl+0x2b3/0x450 [ 35.979092] [] ? compat_do_ipt_set_ctl+0x140/0x140 [ 35.985672] [] ? mutex_unlock+0x9/0x10 [ 35.991219] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 35.998308] [] nf_setsockopt+0x6d/0xc0 [ 36.003838] [] ip_setsockopt+0x9a/0xb0 [ 36.009371] [] udp_setsockopt+0x4a/0x90 [ 36.015001] [] ipv6_setsockopt+0x10a/0x130 [ 36.020882] [] udpv6_setsockopt+0x4a/0x90 [ 36.026675] [] sock_common_setsockopt+0x9a/0xe0 [ 36.032997] [] SyS_setsockopt+0x166/0x260 [ 36.038786] [] ? SyS_recv+0x40/0x40 [ 36.044055] [] ? move_addr_to_kernel+0x50/0x50 [ 36.050282] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 36.056774] [] entry_SYSCALL_64_fastpath+0x22/0x9e [ 36.063438] Mem-Info: [ 36.065896] active_anon:2411 inactive_anon:44 isolated_anon:0 [ 36.065896] active_file:2245 inactive_file:3390 isolated_file:0 [ 36.065896] unevictable:0 dirty:3685 writeback:0 unstable:0 [ 36.065896] slab_reclaimable:4716 slab_unreclaimable:57208 [ 36.065896] mapped:1821 shmem:50 pagetables:269 bounce:0 [ 36.065896] free:370 free_pcp:12 free_cma:0 [ 36.098712] DMA free:16kB 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 [ 36.139643] lowmem_reserve[]: 0 2908 6409 6409 [ 36.145020] DMA32 free:1440kB min:30596kB low:38244kB high:45892kB active_anon:6948kB inactive_anon:68kB active_file:4196kB inactive_file:5092kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3129292kB managed:2980432kB mlocked:0kB dirty:5248kB writeback:0kB mapped:3600kB shmem:88kB slab_reclaimable:8560kB slab_unreclaimable:105820kB kernel_stack:1600kB pagetables:640kB unstable:0kB bounce:0kB free_pcp:32kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:70656 all_unreclaimable? yes [ 36.190591] lowmem_reserve[]: 0 0 3500 3500 [ 36.196369] Normal free:24kB min:36820kB low:46024kB high:55228kB active_anon:2696kB inactive_anon:108kB active_file:4784kB inactive_file:8468kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:4718592kB managed:3584660kB mlocked:0kB dirty:9492kB writeback:0kB mapped:3684kB shmem:112kB slab_reclaimable:10304kB slab_unreclaimable:123012kB kernel_stack:2432kB pagetables:436kB unstable:0kB bounce:0kB free_pcp:36kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:109464 all_unreclaimable? yes [ 36.242604] lowmem_reserve[]: 0 0 0 0 [ 36.250121] DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 36.276723] DMA32: 0*4kB 0*8kB 0*16kB 18*32kB (U) 6*64kB (U) 2*128kB (U) 1*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1472kB [ 36.299980] Normal: 95*4kB (UM) 38*8kB (UM) 30*16kB (UM) 13*32kB (UM) 8*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 2092kB [ 36.344304] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 36.352870] 4165 total pagecache pages [ 36.363238] 0 pages in swap cache [ 36.366697] Swap cache stats: add 0, delete 0, find 0/0 [ 36.372056] Free swap = 0kB [ 36.393207] Total swap = 0kB [ 36.396229] 1965969 pages RAM [ 36.399325] 0 pages HighMem/MovableOnly [ 36.413183] 320720 pages reserved executing program Connection to 10.128.10.49 closed by remote host.