[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 14.803662] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 16.209476] random: sshd: uninitialized urandom read (32 bytes read) [ 16.546934] random: sshd: uninitialized urandom read (32 bytes read) [ 17.516627] random: sshd: uninitialized urandom read (32 bytes read) [ 113.410489] random: sshd: uninitialized urandom read (32 bytes read) INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.0.44' (ECDSA) to the list of known hosts. [ 118.949006] random: sshd: uninitialized urandom read (32 bytes read) 2018/07/15 07:40:26 parsed 1 programs [ 120.459279] random: cc1: uninitialized urandom read (8 bytes read) 2018/07/15 07:40:28 executed programs: 0 [ 121.848882] IPVS: Creating netns size=2536 id=1 [ 121.879026] IPVS: Creating netns size=2536 id=2 [ 121.914402] IPVS: Creating netns size=2536 id=3 [ 121.965399] IPVS: Creating netns size=2536 id=4 [ 122.028948] IPVS: Creating netns size=2536 id=5 [ 122.087077] IPVS: Creating netns size=2536 id=6 [ 122.160420] IPVS: Creating netns size=2536 id=7 [ 122.243681] IPVS: Creating netns size=2536 id=8 [ 123.426710] lowmemorykiller: Killing 'syz-execprog' (3762) (tgid 3762), adj 0, [ 123.426710] to free 11684kB on behalf of 'syz-execprog' (3762) because [ 123.426710] cache 6012kB is below limit 6144kB for oom_score_adj 0 [ 123.426710] Free memory is -33724kB above reserved [ 123.453379] lowmemorykiller: Killing 'syz-execprog' (3762) (tgid 3762), adj 0, [ 123.453379] to free 11804kB on behalf of 'syz-executor4' (3844) because [ 123.453379] cache 5912kB is below limit 6144kB for oom_score_adj 0 [ 123.453379] Free memory is -32756kB above reserved [ 123.453663] lowmemorykiller: Killing 'syz-execprog' (3762) (tgid 3762), adj 0, [ 123.453663] to free 11600kB on behalf of 'syz-executor0' (3965) because [ 123.453663] cache 6012kB is below limit 6144kB for oom_score_adj 0 [ 123.453663] Free memory is -33724kB above reserved [ 123.807797] oom_reaper: reaped process 3914 (syz-executor6), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 123.810672] lowmemorykiller: Killing 'syz-execprog' (3782) (tgid 3762), adj 0, [ 123.810672] to free 11768kB on behalf of 'syz-executor3' (3774) because [ 123.810672] cache 460kB is below limit 6144kB for oom_score_adj 0 [ 123.810672] Free memory is -33716kB above reserved [ 123.895311] syz-executor6: vmalloc: allocation failure, allocated 900653056 of 4294975488 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 123.908092] CPU: 1 PID: 3914 Comm: syz-executor6 Not tainted 4.9.112-g9e79039 #11 [ 123.915685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 123.925022] ffff88016cbd7950 ffffffff81eb3249 1ffff1002d97af2c dffffc0000000000 [ 123.933066] ffffffff83cba180 0000000000000000 0000000000400000 ffff88016cbd7a98 [ 123.941084] ffffffff8156362c 0000000041b58ab3 ffffffff843c7e10 ffffffff814524e0 [ 123.949126] Call Trace: [ 123.951708] [] dump_stack+0xc1/0x128 [ 123.957057] [] warn_alloc.cold.123+0xd5/0x141 [ 123.963178] [] ? zone_watermark_ok_safe+0x280/0x280 [ 123.969825] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 123.976654] [] ? __alloc_pages_nodemask+0x54c/0x700 [ 123.983308] [] __vmalloc_node_range+0x3f1/0x5f0 [ 123.989615] [] ? xt_alloc_table_info+0xc9/0x100 [ 123.995914] [] vmalloc+0x5b/0x70 [ 124.000915] [] ? xt_alloc_table_info+0xc9/0x100 [ 124.007213] [] xt_alloc_table_info+0xc9/0x100 [ 124.013336] [] compat_do_arpt_set_ctl+0x262/0x640 [ 124.019807] [] ? do_arpt_set_ctl+0x5c0/0x5c0 [ 124.025843] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 124.032658] [] ? __mutex_unlock_slowpath+0x25b/0x3c0 [ 124.039386] [] ? __mutex_unlock_slowpath+0x221/0x3c0 [ 124.046112] [] ? __ww_mutex_lock+0x14c0/0x14c0 [ 124.052320] [] ? mutex_unlock+0x9/0x10 [ 124.057844] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 124.065026] [] compat_nf_setsockopt+0x8b/0x130 [ 124.071250] [] ? do_arpt_set_ctl+0x5c0/0x5c0 [ 124.077305] [] compat_ip_setsockopt+0xa7/0xe0 [ 124.083463] [] compat_udp_setsockopt+0x4a/0x90 [ 124.089687] [] compat_sock_common_setsockopt+0xb4/0x150 [ 124.096680] [] ? udp_lib_setsockopt+0x570/0x570 [ 124.102987] [] compat_SyS_setsockopt+0x14c/0x2a0 [ 124.109370] [] ? sock_common_setsockopt+0xe0/0xe0 [ 124.115841] [] ? scm_detach_fds_compat+0x3b0/0x3b0 [ 124.122393] [] ? do_fast_syscall_32+0xcf/0x870 [ 124.128598] [] ? scm_detach_fds_compat+0x3b0/0x3b0 [ 124.135411] [] do_fast_syscall_32+0x2f7/0x870 [ 124.141530] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 124.148175] [] entry_SYSENTER_compat+0x90/0xa2 [ 124.156608] syz-executor2 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=0 [ 124.169672] syz-executor2 cpuset=/ mems_allowed=0 [ 124.174912] CPU: 1 PID: 3959 Comm: syz-executor2 Not tainted 4.9.112-g9e79039 #11 [ 124.180852] Mem-Info: [ 124.180868] active_anon:8394 inactive_anon:43 isolated_anon:0 [ 124.180868] active_file:9 inactive_file:57 isolated_file:0 [ 124.180868] unevictable:0 dirty:81 writeback:0 unstable:0 [ 124.180868] slab_reclaimable:5650 slab_unreclaimable:57600 [ 124.180868] mapped:4 shmem:50 pagetables:317 bounce:0 [ 124.180868] free:34 free_pcp:0 free_cma:0 [ 124.180883] Node 0 active_anon:33576kB inactive_anon:172kB active_file:36kB inactive_file:228kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:16kB dirty:324kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 14336kB writeback_tmp:0kB unstable:0kB pages_scanned:1686 all_unreclaimable? no [ 124.180898] DMA free:20kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2906 6407 6407 [ 124.180923] DMA32 free:96kB min:30580kB low:38224kB high:45868kB active_anon:4240kB inactive_anon:12kB active_file:28kB inactive_file:0kB unevictable:0kB writepending:28kB present:3129292kB managed:2978500kB mlocked:0kB slab_reclaimable:32kB slab_unreclaimable:888kB kernel_stack:64kB pagetables:68kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3501 3501 [ 124.180946] Normal free:20kB min:36836kB low:46044kB high:55252kB active_anon:29336kB inactive_anon:160kB active_file:208kB inactive_file:124kB unevictable:0kB writepending:296kB present:4718592kB managed:3585212kB mlocked:0kB slab_reclaimable:22568kB slab_unreclaimable:229512kB kernel_stack:4896kB pagetables:1200kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 [ 124.180979] DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Normal: 10*4kB (UM) 4*8kB (M) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 72kB [ 124.181037] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 124.181038] 140 total pagecache pages [ 124.181040] 0 pages in swap cache [ 124.181048] Swap cache stats: add 0, delete 0, find 0/0 [ 124.191530] Free swap = 0kB [ 124.191532] Total swap = 0kB [ 124.191534] 1965969 pages RAM [ 124.191536] 0 pages HighMem/MovableOnly [ 124.191538] 321064 pages reserved [ 124.412379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 124.421715] ffff8800b54cf580 ffffffff81eb3249 ffff8800b54cf920 ffff8801d7a2a8e8 [ 124.429726] 0000000000000000 ffff8800b54cf938 0000000000000000 ffff8800b54cf600 [ 124.437744] ffffffff81562619 0000000000000000 0000000000000000 ffffffff839f9665 [ 124.445759] Call Trace: [ 124.448324] [] dump_stack+0xc1/0x128 [ 124.453671] [] dump_header.isra.17+0x155/0x5a0 [ 124.459879] [] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 124.466787] [] ? ___ratelimit+0x53/0x401 [ 124.472475] [] oom_kill_process.cold.23+0xd/0x93a [ 124.478945] [] ? has_capability_noaudit+0x24/0x30 [ 124.485433] [] ? check_preemption_disabled+0x3b/0x170 [ 124.492266] [] ? out_of_memory+0x6dd/0xe80 [ 124.498126] [] out_of_memory+0x292/0xe80 [ 124.503817] [] ? out_of_memory+0x410/0xe80 [ 124.509681] [] ? oom_killer_disable+0x200/0x200 [ 124.515975] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 124.522968] [] __alloc_pages_slowpath+0x119d/0x1e50 [ 124.529608] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 124.536249] [] ? get_page_from_freelist+0xf2a/0x1a00 [ 124.542976] [] __alloc_pages_nodemask+0x354/0x700 [ 124.549443] [] ? __alloc_pages_slowpath+0x1e50/0x1e50 [ 124.556346] [] __vmalloc_node_range+0x254/0x5f0 [ 124.562639] [] ? xt_alloc_table_info+0xc9/0x100 [ 124.568933] [] vmalloc+0x5b/0x70 [ 124.573925] [] ? xt_alloc_table_info+0xc9/0x100 [ 124.581110] [] xt_alloc_table_info+0xc9/0x100 [ 124.587236] [] compat_do_arpt_set_ctl+0x262/0x640 [ 124.593713] [] ? do_arpt_set_ctl+0x5c0/0x5c0 [ 124.599832] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 124.606733] [] ? __mutex_unlock_slowpath+0x25b/0x3c0 [ 124.613462] [] ? __mutex_unlock_slowpath+0x221/0x3c0 [ 124.620200] [] ? __ww_mutex_lock+0x14c0/0x14c0 [ 124.626418] [] ? mutex_unlock+0x9/0x10 [ 124.631933] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 124.639010] [] compat_nf_setsockopt+0x8b/0x130 [ 124.645231] [] ? do_arpt_set_ctl+0x5c0/0x5c0 [ 124.651277] [] compat_ip_setsockopt+0xa7/0xe0 [ 124.657404] [] compat_udp_setsockopt+0x4a/0x90 [ 124.663621] [] compat_sock_common_setsockopt+0xb4/0x150 [ 124.670607] [] ? udp_lib_setsockopt+0x570/0x570 [ 124.676904] [] compat_SyS_setsockopt+0x14c/0x2a0 [ 124.683333] [] ? sock_common_setsockopt+0xe0/0xe0 [ 124.689803] [] ? scm_detach_fds_compat+0x3b0/0x3b0 [ 124.696357] [] ? do_fast_syscall_32+0xcf/0x870 [ 124.702562] [] ? scm_detach_fds_compat+0x3b0/0x3b0 [ 124.709113] [] do_fast_syscall_32+0x2f7/0x870 [ 124.715230] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 124.721871] [] entry_SYSENTER_compat+0x90/0xa2 [ 124.731041] Mem-Info: [ 124.733607] active_anon:8394 inactive_anon:43 isolated_anon:0 [ 124.733607] active_file:12 inactive_file:32 isolated_file:32 [ 124.733607] unevictable:0 dirty:81 writeback:0 unstable:0 [ 124.733607] slab_reclaimable:5650 slab_unreclaimable:57434 [ 124.733607] mapped:4 shmem:50 pagetables:317 bounce:0 [ 124.733607] free:162 free_pcp:30 free_cma:0 [ 124.769646] Node 0 active_anon:33576kB inactive_anon:172kB active_file:64kB inactive_file:120kB unevictable:0kB isolated(anon):0kB isolated(file):128kB mapped:16kB dirty:280kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 14336kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 124.798477] DMA free:0kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 124.827533] lowmem_reserve[]: 0[ 124.830724] lowmemorykiller: Killing 'syz-execprog' (3782) (tgid 3762), adj 0, [ 124.830724] to free 11768kB on behalf of 'kswapd0' (940) because [ 124.830724] cache 348kB is below limit 6144kB for oom_score_adj 0 [ 124.830724] Free memory is -130284kB above reserved [ 124.856082] 2906 6407 6407 DMA32 free:0kB min:30580kB low:38224kB high:45868kB active_anon:4240kB inactive_anon:12kB active_file:0kB inactive_file:12kB unevictable:0kB writepending:28kB present:3129292kB managed:2978500kB mlocked:0kB slab_reclaimable:32kB slab_unreclaimable:888kB kernel_stack:64kB pagetables:68kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 124.890058] lowmem_reserve[]: 0 0 3501 3501 [ 124.909237] Normal free:748kB min:36836kB low:46044kB high:55252kB active_anon:29336kB inactive_anon:160kB active_file:64kB inactive_file:104kB unevictable:0kB writepending:96kB present:4718592kB managed:3585212kB mlocked:0kB slab_reclaimable:22568kB slab_unreclaimable:228816kB kernel_stack:4896kB pagetables:1200kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 124.956064] lowmem_reserve[]: 0 0 0 0 [ 124.968828] DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 124.980213] DMA32: 2*4kB (M) 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB [ 124.992311] Normal: 77*4kB (UM) 6*8kB (UM) 1*16kB (U) 13*32kB (U) 2*64kB (U) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 916kB [ 125.006940] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 125.015530] 112 total pagecache pages [ 125.019311] 0 pages in swap cache [ 125.031089] Swap cache stats: add 0, delete 0, find 0/0 [ 125.036449] Free swap = 0kB [ 125.039448] Total swap = 0kB [ 125.050600] 1965969 pages RAM [ 125.053726] 0 pages HighMem/MovableOnly [ 125.057683] 321064 pages reserved [ 125.085882] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 125.094579] [ 2042] 0 2042 5381 176 16 3 0 -1000 udevd [ 125.116761] [ 2277] 0 2277 5380 177 15 3 0 -1000 udevd [ 125.145466] [ 2278] 0 2278 5380 175 15 3 0 -1000 udevd [ 125.164592] [ 3447] 0 3447 2492 572 9 3 0 0 dhclient [ 125.184903] [ 3587] 0 3587 30615 109 25 3 0 0 rsyslogd [ 125.204589] [ 3630] 0 3630 4724 49 15 3 0 0 cron [ 125.231097] [ 3656] 0 3656 12489 152 30 3 0 -1000 sshd [ 125.239765] [ 3686] 0 3686 3648 41 12 3 0 0 getty [ 125.268635] [ 3760] 0 3760 17820 198 41 3 0 0 sshd [ 125.312738] [ 3782] 0 3762 45797 2942 38 5 0 0 syz-execprog [ 125.334657] [ 3780] 0 3780 9301 15 7 2 0 0 syz-executor4 [ 125.367569] [ 3786] 0 3786 9301 14 6 2 0 0 syz-executor7 [ 125.404851] [ 3789] 0 3789 9301 15 7 2 0 0 syz-executor7 [ 125.434637] [ 3794] 0 3794 9301 14 7 2 0 0 syz-executor2 [ 125.458781] [ 3828] 0 3828 9301 532 8 2 0 0 syz-executor3 [ 125.528212] [ 3844] 0 3844 9301 532 8 2 0 0 syz-executor4 [ 125.566391] [ 3885] 0 3885 9301 531 8 2 0 0 syz-executor5 [ 125.600058] [ 3914] 0 3914 9301 0 7 2 0 0 syz-executor6 [ 125.658209] [ 3934] 0 3934 9301 531 8 2 0 0 syz-executor1 [ 125.686498] [ 3949] 0 3949 9301 531 8 2 0 0 syz-executor7 [ 125.720753] [ 3959] 0 3959 9301 531 8 2 0 0 syz-executor2 [ 125.768229] [ 3965] 0 3965 9301 532 8 2 0 0 syz-executor0 [ 125.796509] Out of memory: Kill process 3762 (syz-execprog) score 1 or sacrifice child [ 125.831180] lowmemorykiller: Killing 'syz-execprog' (3782) (tgid 3762), adj 0, [ 125.831180] to free 11768kB on behalf of 'syz-execprog' (3782) because [ 125.831180] cache 248kB is below limit 6144kB for oom_score_adj 0 [ 125.831180] Free memory is -130184kB above reserved [ 125.876201] Killed process 3786 (syz-executor7) total-vm:37204kB, anon-rss:52kB, file-rss:4kB, shmem-rss:0kB [ 125.938744] oom_reaper: reaped process 3828 (syz-executor3), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 125.967021] syz-executor3: vmalloc: allocation failure, allocated 1692614656 of 4294975488 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 125.967029] CPU: 1 PID: 3828 Comm: syz-executor3 Not tainted 4.9.112-g9e79039 #11 [ 125.967033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 125.967046] ffff8801be97f950 ffffffff81eb3249 1ffff10037d2ff2c dffffc0000000000 [ 125.967056] ffffffff83cba180 0000000000000000 0000000000400000 ffff8801be97fa98 [ 125.967066] ffffffff8156362c 0000000041b58ab3 ffffffff843c7e10 ffffffff814524e0 [ 125.967068] Call Trace: [ 125.967080] [] dump_stack+0xc1/0x128 [ 125.967091] [] warn_alloc.cold.123+0xd5/0x141 [ 125.967099] [] ? zone_watermark_ok_safe+0x280/0x280 [ 125.967111] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 125.967118] [] ? __alloc_pages_nodemask+0x54c/0x700 [ 125.967128] [] __vmalloc_node_range+0x3f1/0x5f0 [ 125.967137] [] ? xt_alloc_table_info+0xc9/0x100 [ 125.967144] [] vmalloc+0x5b/0x70 [ 125.967151] [] ? xt_alloc_table_info+0xc9/0x100 [ 125.967158] [] xt_alloc_table_info+0xc9/0x100 [ 125.967168] [] compat_do_arpt_set_ctl+0x262/0x640 [ 125.967176] [] ? do_arpt_set_ctl+0x5c0/0x5c0 [ 125.967185] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 125.967195] [] ? __mutex_unlock_slowpath+0x25b/0x3c0 [ 125.967203] [] ? __mutex_unlock_slowpath+0x221/0x3c0 [ 125.967211] [] ? __ww_mutex_lock+0x14c0/0x14c0 [ 125.967219] [] ? mutex_unlock+0x9/0x10 [ 125.967229] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 125.967237] [] compat_nf_setsockopt+0x8b/0x130 [ 125.967245] [] ? do_arpt_set_ctl+0x5c0/0x5c0 [ 125.967253] [] compat_ip_setsockopt+0xa7/0xe0 [ 125.967262] [] compat_udp_setsockopt+0x4a/0x90 [ 125.967270] [] compat_sock_common_setsockopt+0xb4/0x150 [ 125.967278] [] ? udp_lib_setsockopt+0x570/0x570 [ 125.967286] [] compat_SyS_setsockopt+0x14c/0x2a0 [ 125.967293] [] ? sock_common_setsockopt+0xe0/0xe0 [ 125.967301] [] ? scm_detach_fds_compat+0x3b0/0x3b0 [ 125.967309] [] ? do_fast_syscall_32+0xcf/0x870 [ 125.967317] [] ? scm_detach_fds_compat+0x3b0/0x3b0 [ 125.967324] [] do_fast_syscall_32+0x2f7/0x870 [ 125.967331] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 125.967340] [] entry_SYSENTER_compat+0x90/0xa2 [ 125.967343] Mem-Info: [ 125.967359] active_anon:7854 inactive_anon:43 isolated_anon:0 [ 125.967359] active_file:16 inactive_file:29 isolated_file:0 [ 125.967359] unevictable:0 dirty:33 writeback:0 unstable:0 [ 125.967359] slab_reclaimable:5650 slab_unreclaimable:57426 [ 125.967359] mapped:4 shmem:50 pagetables:317 bounce:0 [ 125.967359] free:0 free_pcp:0 free_cma:0 [ 125.967374] Node 0 active_anon:31416kB inactive_anon:172kB active_file:64kB inactive_file:116kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:16kB dirty:132kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 14336kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes [ 125.967390] DMA free:0kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2906 6407 6407 [ 125.967416] DMA32 free:0kB min:30580kB low:38224kB high:45868kB active_anon:4240kB inactive_anon:12kB active_file:0kB inactive_file:12kB unevictable:0kB writepending:28kB present:3129292kB managed:2978500kB mlocked:0kB slab_reclaimable:32kB slab_unreclaimable:888kB kernel_stack:64kB pagetables:68kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3501 3501 [ 125.967441] Normal free:0kB min:36836kB low:46044kB high:55252kB active_anon:27176kB inactive_anon:160kB active_file:64kB inactive_file:104kB unevictable:0kB writepending:96kB present:4718592kB managed:3585212kB mlocked:0kB slab_reclaimable:22568kB slab_unreclaimable:228816kB kernel_stack:4864kB pagetables:1200kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 [ 125.967478] DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 125.967542] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 125.967545] 112 total pagecache pages [ 125.967547] 0 pages in swap cache [ 125.967551] Swap cache stats: add 0, delete 0, find 0/0 [ 125.967553] Free swap = 0kB [ 125.967555] Total swap = 0kB [ 125.967556] 1965969 pages RAM [ 125.967558] 0 pages HighMem/MovableOnly [ 125.967560] 321064 pages reserved [ 126.411232] lowmemorykiller: Killing 'dhclient' (3447) (tgid 3447), adj 0, [ 126.411232] to free 2288kB on behalf of 'syz-executor7' (3949) because [ 126.411232] cache 200kB is below limit 6144kB for oom_score_adj 0 [ 126.411232] Free memory is -94072kB above reserved [ 126.411355] lowmemorykiller: Killing 'syz-executor4' (3844) (tgid 3844), adj 0, [ 126.411355] to free 2128kB on behalf of 'syz-executor7' (3949) because [ 126.411355] cache 200kB is below limit 6144kB for oom_score_adj 0 [ 126.411355] Free memory is -94072kB above reserved [ 126.413367] lowmemorykiller: Killing 'dhclient' (3447) (tgid 3447), adj 0, [ 126.413367] to free 2288kB on behalf of 'kswapd0' (940) because [ 126.413367] cache 200kB is below limit 6144kB for oom_score_adj 0 [ 126.413367] Free memory is -94072kB above reserved [ 127.431488] lowmemorykiller: Killing 'syz-executor4' (3844) (tgid 3844), adj 0, [ 127.431488] to free 2128kB on behalf of 'syz-executor4' (3844) because [ 127.431488] cache 188kB is below limit 6144kB for oom_score_adj 0 [ 127.431488] Free memory is -25648kB above reserved [ 128.441169] lowmemorykiller: Killing 'syz-executor4' (3844) (tgid 3844), adj 0, [ 128.441169] to free 2128kB on behalf of 'init' (1) because [ 128.441169] cache 244kB is below limit 6144kB for oom_score_adj 0 [ 128.441169] Free memory is -49764kB above reserved [ 128.441179] lowmemorykiller: Killing 'syz-executor4' (3844) (tgid 3844), adj 0, [ 128.441179] to free 2128kB on behalf of 'kswapd0' (940) because [ 128.441179] cache 244kB is below limit 6144kB for oom_score_adj 0 [ 128.441179] Free memory is -49764kB above reserved [ 129.451154] lowmemorykiller: Killing 'syz-executor4' (3844) (tgid 3844), adj 0, [ 129.451154] to free 2128kB on behalf of 'syz-executor1' (3934) because [ 129.451154] cache 788kB is below limit 6144kB for oom_score_adj 0 [ 129.451154] Free memory is -27688kB above reserved [ 129.633264] syz-executor6 (3914) used greatest stack depth: 23208 bytes left [ 129.932790] oom_reaper: reaped process 3959 (syz-executor2), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 130.042073] oom_reaper: reaped process 3844 (syz-executor4), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 130.111725] oom_reaper: reaped process 3885 (syz-executor5), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 130.170053] syz-executor0: [ 130.173958] oom_reaper: reaped process 3934 (syz-executor1), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 130.174476] oom_reaper: reaped process 3965 (syz-executor0), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 130.175258] oom_reaper: reaped process 3949 (syz-executor7), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 130.177863] syz-executor7: [ 130.177870] vmalloc: allocation failure, allocated 627363840 of 4294975488 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 130.177884] CPU: 1 PID: 3949 Comm: syz-executor7 Not tainted 4.9.112-g9e79039 #11 [ 130.177888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 130.177894] ffff880127f9f950 [ 130.177897] ffffffff81eb3249 1ffff10024ff3f2c dffffc0000000000 ffffffff83cba180 [ 130.177907] 0000000000000000 0000000000400000 ffff880127f9fa98 ffffffff8156362c [ 130.177918] 0000000041b58ab3 ffffffff843c7e10 ffffffff814524e0Call Trace: [ 130.177938] [] dump_stack+0xc1/0x128 [ 130.177949] [] warn_alloc.cold.123+0xd5/0x141 [ 130.177959] [] ? zone_watermark_ok_safe+0x280/0x280 [ 130.177970] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 130.177977] [] ? __alloc_pages_nodemask+0x54c/0x700 [ 130.177988] [] __vmalloc_node_range+0x3f1/0x5f0 [ 130.177997] [] ? xt_alloc_table_info+0xc9/0x100 [ 130.178004] [] vmalloc+0x5b/0x70 [ 130.178011] [] ? xt_alloc_table_info+0xc9/0x100 [ 130.178018] [] xt_alloc_table_info+0xc9/0x100 [ 130.178029] [] compat_do_arpt_set_ctl+0x262/0x640 [ 130.178036] [] ? do_arpt_set_ctl+0x5c0/0x5c0 [ 130.178045] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 130.178054] [] ? __mutex_unlock_slowpath+0x25b/0x3c0 [ 130.178062] [] ? __mutex_unlock_slowpath+0x221/0x3c0 [ 130.178070] [] ? __ww_mutex_lock+0x14c0/0x14c0 [ 130.178078] [] ? mutex_unlock+0x9/0x10 [ 130.178087] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 130.178095] [] compat_nf_setsockopt+0x8b/0x130 [ 130.178103] [] ? do_arpt_set_ctl+0x5c0/0x5c0 [ 130.178116] [] compat_ip_setsockopt+0xa7/0xe0 [ 130.178125] [] compat_udp_setsockopt+0x4a/0x90 [ 130.178133] [] compat_sock_common_setsockopt+0xb4/0x150 [ 130.178141] [] ? udp_lib_setsockopt+0x570/0x570 [ 130.178151] [] compat_SyS_setsockopt+0x14c/0x2a0 [ 130.178158] [] ? sock_common_setsockopt+0xe0/0xe0 [ 130.178165] [] ? scm_detach_fds_compat+0x3b0/0x3b0 [ 130.178174] [] ? do_fast_syscall_32+0xcf/0x870 [ 130.178181] [] ? scm_detach_fds_compat+0x3b0/0x3b0 [ 130.178188] [] do_fast_syscall_32+0x2f7/0x870 [ 130.178196] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 130.178204] [] entry_SYSENTER_compat+0x90/0xa2 [ 130.178207] Mem-Info: [ 130.178223] active_anon:1110 inactive_anon:43 isolated_anon:0 [ 130.178223] active_file:22 inactive_file:27 isolated_file:0 [ 130.178223] unevictable:0 dirty:0 writeback:0 unstable:0 [ 130.178223] slab_reclaimable:5655 slab_unreclaimable:57459 [ 130.178223] mapped:70 shmem:50 pagetables:235 bounce:0 [ 130.178223] free:33 free_pcp:67 free_cma:0 [ 130.178238] Node 0 active_anon:4440kB inactive_anon:172kB active_file:88kB inactive_file:108kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:280kB dirty:0kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 12288kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 130.178254] DMA free:20kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.178258] 0 2906 6407 6407DMA32 free:64kB min:30580kB low:38224kB high:45868kB active_anon:40kB inactive_anon:12kB active_file:24kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129292kB managed:2978500kB mlocked:0kB slab_reclaimable:36kB slab_unreclaimable:892kB kernel_stack:64kB pagetables:64kB bounce:0kB free_pcp:68kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.178284] 0 0 3501 3501Normal free:48kB min:36836kB low:46044kB high:55252kB active_anon:4412kB inactive_anon:160kB active_file:96kB inactive_file:132kB unevictable:0kB writepending:0kB present:4718592kB managed:3585212kB mlocked:0kB slab_reclaimable:22584kB slab_unreclaimable:228944kB kernel_stack:4736kB pagetables:876kB bounce:0kB free_pcp:200kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.178311] 0 0 0 0DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Normal: 1*4kB (H) 1*8kB (H) 0*16kB 1*32kB (H) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 44kB [ 130.178422] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 130.178424] 120 total pagecache pages [ 130.178427] 0 pages in swap cache [ 130.178430] Swap cache stats: add 0, delete 0, find 0/0 [ 130.178432] Free swap = 0kB [ 130.178434] Total swap = 0kB [ 130.178436] 1965969 pages RAM [ 130.178438] 0 pages HighMem/MovableOnly [ 130.178440] 321064 pages reserved [ 130.182508] kworker/u4:0 invoked oom-killer: gfp_mask=0x26000c0(GFP_KERNEL|__GFP_NOTRACK), nodemask=0, order=0, oom_score_adj=0 [ 130.182513] kworker/u4:0 cpuset= [ 130.182562] / mems_allowed=0 [ 130.182573] CPU: 1 PID: 6 Comm: kworker/u4:0 Not tainted 4.9.112-g9e79039 #11 [ 130.182576] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 130.182587] Workqueue: netns cleanup_net [ 130.182591] ffff8801d9a46f80 [ 130.182593] ffffffff81eb3249 ffff8801d9a47320 ffff8801d9a390e8 0000000000000000 [ 130.182603] ffff8801d9a47338 0000000000000000 ffff8801d9a47000 ffffffff81562619 [ 130.182612] 0000000000000000 0000000000000000 ffffffff839f9665Call Trace: [ 130.182627] [] dump_stack+0xc1/0x128 [ 130.182638] [] dump_header.isra.17+0x155/0x5a0 [ 130.182646] [] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 130.182654] [] ? ___ratelimit+0x53/0x401 [ 130.182662] [] oom_kill_process.cold.23+0xd/0x93a [ 130.182671] [] ? check_preemption_disabled+0x3b/0x170 [ 130.182681] [] ? out_of_memory+0x6dd/0xe80 [ 130.182688] [] out_of_memory+0x292/0xe80 [ 130.182695] [] ? out_of_memory+0x410/0xe80 [ 130.182703] [] ? oom_killer_disable+0x200/0x200 [ 130.182711] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 130.182718] [] __alloc_pages_slowpath+0x119d/0x1e50 [ 130.182726] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 130.182733] [] ? get_page_from_freelist+0xf2a/0x1a00 [ 130.182740] [] __alloc_pages_nodemask+0x354/0x700 [ 130.182748] [] ? netlink_broadcast_filtered+0x2ae/0x9f0 [ 130.182755] [] ? kobject_uevent_env+0x6d8/0xb80 [ 130.182761] [] ? kobject_uevent+0x1f/0x30 [ 130.182768] [] ? __alloc_pages_slowpath+0x1e50/0x1e50 [ 130.182775] [] ? new_slab+0x303/0x3d0 [ 130.182782] [] new_slab+0x335/0x3d0 [ 130.182790] [] ___slab_alloc.constprop.79+0x2ba/0x5a0 [ 130.182796] [] ? __lock_is_held+0xa2/0xf0 [ 130.182804] [] ? __alloc_skb+0xe6/0x600 [ 130.182810] [] ? __alloc_skb+0xe6/0x600 [ 130.182817] [] ? check_preemption_disabled+0x3b/0x170 [ 130.182824] [] ? __alloc_skb+0xe6/0x600 [ 130.182832] [] __slab_alloc.isra.72.constprop.78+0x50/0xa0 [ 130.182839] [] ? __alloc_skb+0xe6/0x600 [ 130.182846] [] kmem_cache_alloc+0x159/0x290 [ 130.182852] [] __alloc_skb+0xe6/0x600 [ 130.182859] [] ? copy_skb_header+0x2c0/0x2c0 [ 130.182866] [] ? netlink_has_listeners+0x1fb/0x330 [ 130.182873] [] kobject_uevent_env+0x587/0xb80 [ 130.182880] [] kobject_uevent+0x1f/0x30 [ 130.182887] [] kobject_release+0x144/0x1b0 [ 130.182893] [] kobject_put+0x6d/0xd0 [ 130.182901] [] net_rx_queue_update_kobjects+0x29e/0x3d0 [ 130.182908] [] ? ip_tunnel_encap_setup+0x5b0/0x5b0 [ 130.182915] [] netdev_unregister_kobject+0x9d/0x110 [ 130.182922] [] rollback_registered_many+0x550/0x920 [ 130.182929] [] ? free_netdev+0x300/0x300 [ 130.182937] [] unregister_netdevice_many.part.106+0x1b/0x110 [ 130.182945] [] unregister_netdevice_many+0x39/0x50 [ 130.182952] [] ip_tunnel_delete_net+0x2af/0x390 [ 130.182959] [] ? rtnl_unlock+0xe/0x10 [ 130.182965] [] ? ip_tunnel_update+0x940/0x940 [ 130.182973] [] ? ipip_exit_net+0xf3/0x1f0 [ 130.182980] [] ipip_exit_net+0x129/0x1f0 [ 130.182987] [] ? ipip_rcv+0xbe0/0xbe0 [ 130.182994] [] ? ipip_rcv+0xbe0/0xbe0 [ 130.183000] [] ops_exit_list.isra.6+0xb0/0x160 [ 130.183006] [] cleanup_net+0x321/0x630 [ 130.183013] [] ? net_drop_ns+0x80/0x80 [ 130.183020] [] ? __lock_is_held+0xa2/0xf0 [ 130.183028] [] process_one_work+0x7e1/0x1500 [ 130.183035] [] ? process_one_work+0x728/0x1500 [ 130.183043] [] ? pwq_dec_nr_in_flight+0x2e0/0x2e0 [ 130.183050] [] worker_thread+0xd6/0x10a0 [ 130.183057] [] kthread+0x26d/0x300 [ 130.183064] [] ? process_one_work+0x1500/0x1500 [ 130.183070] [] ? kthread_park+0xa0/0xa0 [ 130.183078] [] ? kthread_park+0xa0/0xa0 [ 130.183084] [] ? kthread_park+0xa0/0xa0 [ 130.183090] [] ret_from_fork+0x5c/0x70 [ 130.183093] Mem-Info: [ 130.183113] active_anon:1110 inactive_anon:43 isolated_anon:0 [ 130.183113] active_file:22 inactive_file:27 isolated_file:0 [ 130.183113] unevictable:0 dirty:0 writeback:0 unstable:0 [ 130.183113] slab_reclaimable:5655 slab_unreclaimable:57459 [ 130.183113] mapped:70 shmem:50 pagetables:235 bounce:0 [ 130.183113] free:33 free_pcp:67 free_cma:0 [ 130.183127] Node 0 active_anon:4440kB inactive_anon:172kB active_file:88kB inactive_file:108kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:280kB dirty:0kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 12288kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 130.183143] DMA free:20kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.183146] 0 2906 6407 6407DMA32 free:64kB min:30580kB low:38224kB high:45868kB active_anon:40kB inactive_anon:12kB active_file:24kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129292kB managed:2978500kB mlocked:0kB slab_reclaimable:36kB slab_unreclaimable:892kB kernel_stack:64kB pagetables:64kB bounce:0kB free_pcp:68kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.183172] 0 0 3501 3501Normal free:48kB min:36836kB low:46044kB high:55252kB active_anon:4412kB inactive_anon:160kB active_file:96kB inactive_file:132kB unevictable:0kB writepending:0kB present:4718592kB managed:3585212kB mlocked:0kB slab_reclaimable:22584kB slab_unreclaimable:228944kB kernel_stack:4736kB pagetables:876kB bounce:0kB free_pcp:200kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.183197] 0 0 0 0DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Normal: 1*4kB (H) 1*8kB (H) 0*16kB 1*32kB (H) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 44kB [ 130.183324] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 130.183326] 120 total pagecache pages [ 130.183329] 0 pages in swap cache [ 130.183332] Swap cache stats: add 0, delete 0, find 0/0 [ 130.183334] Free swap = 0kB [ 130.183336] Total swap = 0kB [ 130.183339] 1965969 pages RAM [ 130.183341] 0 pages HighMem/MovableOnly [ 130.183342] 321064 pages reserved [ 130.183345] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 130.183361] [ 2042] 0 2042 5381 176 16 3 0 -1000 udevd [ 130.183371] [ 2277] 0 2277 5380 177 15 3 0 -1000 udevd [ 130.183381] [ 2278] 0 2278 5380 175 15 3 0 -1000 udevd [ 130.183390] [ 3587] 0 3587 30615 168 25 3 0 0 rsyslogd [ 130.183400] [ 3630] 0 3630 4724 49 15 3 0 0 cron [ 130.183409] [ 3656] 0 3656 12489 152 30 3 0 -1000 sshd [ 130.183418] [ 3686] 0 3686 3648 41 12 3 0 0 getty [ 130.183428] [ 3760] 0 3760 17820 198 41 3 0 0 sshd [ 130.183444] [ 3828] 0 3828 9301 0 7 2 0 0 syz-executor3 [ 130.183453] [ 3844] 0 3844 9301 0 7 2 0 0 syz-executor4 [ 130.183464] [ 3885] 0 3885 9301 0 7 2 0 0 syz-executor5 [ 130.183474] [ 3934] 0 3934 9301 0 7 2 0 0 syz-executor1 [ 130.183484] [ 3949] 0 3949 9301 0 7 2 0 0 syz-executor7 [ 130.183494] [ 3959] 0 3959 9301 0 7 2 0 0 syz-executor2 [ 130.183503] [ 3965] 0 3965 9301 0 7 2 0 0 syz-executor0 [ 130.183508] Out of memory: Kill process 3760 (sshd) score 0 or sacrifice child [ 130.183874] Killed process 3760 (sshd) total-vm:71280kB, anon-rss:788kB, file-rss:0kB, shmem-rss:4kB [ 130.184089] syz-executor4: [ 130.184094] vmalloc: allocation failure, allocated 1732280320 of 4294975488 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 130.184104] CPU: 1 PID: 3844 Comm: syz-executor4 Not tainted 4.9.112-g9e79039 #11 [ 130.184113] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 130.184116] ffff8801b532f950 [ 130.184119] ffffffff81eb3249 1ffff10036a65f2c dffffc0000000000 ffffffff83cba180 [ 130.184128] 0000000000000000 0000000000400000 ffff8801b532fa98 ffffffff8156362c [ 130.184138] 0000000041b58ab3 ffffffff843c7e10 ffffffff814524e0Call Trace: [ 130.184152] [] dump_stack+0xc1/0x128 [ 130.184161] [] warn_alloc.cold.123+0xd5/0x141 [ 130.184168] [] ? zone_watermark_ok_safe+0x280/0x280 [ 130.184177] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 130.184184] [] ? __alloc_pages_nodemask+0x54c/0x700 [ 130.184193] [] __vmalloc_node_range+0x3f1/0x5f0 [ 130.184201] [] ? xt_alloc_table_info+0xc9/0x100 [ 130.184208] [] vmalloc+0x5b/0x70 [ 130.184214] [] ? xt_alloc_table_info+0xc9/0x100 [ 130.184221] [] xt_alloc_table_info+0xc9/0x100 [ 130.184230] [] compat_do_arpt_set_ctl+0x262/0x640 [ 130.184238] [] ? do_arpt_set_ctl+0x5c0/0x5c0 [ 130.184245] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 130.184253] [] ? __mutex_unlock_slowpath+0x25b/0x3c0 [ 130.184261] [] ? __mutex_unlock_slowpath+0x221/0x3c0 [ 130.184268] [] ? __ww_mutex_lock+0x14c0/0x14c0 [ 130.184276] [] ? mutex_unlock+0x9/0x10 [ 130.184283] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 130.184291] [] compat_nf_setsockopt+0x8b/0x130 [ 130.184298] [] ? do_arpt_set_ctl+0x5c0/0x5c0 [ 130.184305] [] compat_ip_setsockopt+0xa7/0xe0 [ 130.184313] [] compat_udp_setsockopt+0x4a/0x90 [ 130.184320] [] compat_sock_common_setsockopt+0xb4/0x150 [ 130.184327] [] ? udp_lib_setsockopt+0x570/0x570 [ 130.184335] [] compat_SyS_setsockopt+0x14c/0x2a0 [ 130.184341] [] ? sock_common_setsockopt+0xe0/0xe0 [ 130.184349] [] ? scm_detach_fds_compat+0x3b0/0x3b0 [ 130.184356] [] ? do_fast_syscall_32+0xcf/0x870 [ 130.184363] [] ? scm_detach_fds_compat+0x3b0/0x3b0 [ 130.184369] [] do_fast_syscall_32+0x2f7/0x870 [ 130.184376] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 130.184383] [] entry_SYSENTER_compat+0x90/0xa2 [ 130.184386] Mem-Info: [ 130.184400] active_anon:1110 inactive_anon:43 isolated_anon:0 [ 130.184400] active_file:22 inactive_file:27 isolated_file:0 [ 130.184400] unevictable:0 dirty:0 writeback:0 unstable:0 [ 130.184400] slab_reclaimable:5655 slab_unreclaimable:57459 [ 130.184400] mapped:70 shmem:50 pagetables:235 bounce:0 [ 130.184400] free:33 free_pcp:67 free_cma:0 [ 130.184414] Node 0 active_anon:4440kB inactive_anon:172kB active_file:88kB inactive_file:108kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:280kB dirty:0kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 12288kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 130.184429] DMA free:20kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.184432] 0 2906 6407 6407DMA32 free:64kB min:30580kB low:38224kB high:45868kB active_anon:40kB inactive_anon:12kB active_file:24kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129292kB managed:2978500kB mlocked:0kB slab_reclaimable:36kB slab_unreclaimable:892kB kernel_stack:64kB pagetables:64kB bounce:0kB free_pcp:68kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.184457] 0 0 3501 3501Normal free:48kB min:36836kB low:46044kB high:55252kB active_anon:4412kB inactive_anon:160kB active_file:96kB inactive_file:132kB unevictable:0kB writepending:0kB present:4718592kB managed:3585212kB mlocked:0kB slab_reclaimable:22584kB slab_unreclaimable:228944kB kernel_stack:4736kB pagetables:876kB bounce:0kB free_pcp:200kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.184481] 0 0 0 0DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Normal: 1*4kB (H) 1*8kB (H) 0*16kB 1*32kB (H) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 44kB [ 130.184580] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 130.184582] 120 total pagecache pages [ 130.184584] 0 pages in swap cache [ 130.184588] Swap cache stats: add 0, delete 0, find 0/0 [ 130.184590] Free swap = 0kB [ 130.184591] Total swap = 0kB [ 130.184593] 1965969 pages RAM [ 130.184595] 0 pages HighMem/MovableOnly [ 130.184597] 321064 pages reserved [ 130.191245] syz-executor5: [ 130.191249] vmalloc: allocation failure, allocated 1224720384 of 4294975488 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 130.191260] CPU: 1 PID: 3885 Comm: syz-executor5 Not tainted 4.9.112-g9e79039 #11 [ 130.191263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 130.191267] ffff88018c557950 [ 130.191269] ffffffff81eb3249 1ffff100318aaf2c dffffc0000000000 ffffffff83cba180 [ 130.191280] 0000000000000000 0000000000400000 ffff88018c557a98 ffffffff8156362c [ 130.191290] 0000000041b58ab3 ffffffff843c7e10 ffffffff814524e0Call Trace: [ 130.191308] [] dump_stack+0xc1/0x128 [ 130.191317] [] warn_alloc.cold.123+0xd5/0x141 [ 130.191325] [] ? zone_watermark_ok_safe+0x280/0x280 [ 130.191335] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 130.191342] [] ? __alloc_pages_nodemask+0x54c/0x700 [ 130.191351] [] __vmalloc_node_range+0x3f1/0x5f0 [ 130.191358] [] ? xt_alloc_table_info+0xc9/0x100 [ 130.191365] [] vmalloc+0x5b/0x70 [ 130.191372] [] ? xt_alloc_table_info+0xc9/0x100 [ 130.191379] [] xt_alloc_table_info+0xc9/0x100 [ 130.191388] [] compat_do_arpt_set_ctl+0x262/0x640 [ 130.191396] [] ? do_arpt_set_ctl+0x5c0/0x5c0 [ 130.191404] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 130.191412] [] ? __mutex_unlock_slowpath+0x25b/0x3c0 [ 130.191421] [] ? __mutex_unlock_slowpath+0x221/0x3c0 [ 130.191428] [] ? __ww_mutex_lock+0x14c0/0x14c0 [ 130.191436] [] ? mutex_unlock+0x9/0x10 [ 130.191445] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 130.191453] [] compat_nf_setsockopt+0x8b/0x130 [ 130.191460] [] ? do_arpt_set_ctl+0x5c0/0x5c0 [ 130.191468] [] compat_ip_setsockopt+0xa7/0xe0 [ 130.191476] [] compat_udp_setsockopt+0x4a/0x90 [ 130.191484] [] compat_sock_common_setsockopt+0xb4/0x150 [ 130.191491] [] ? udp_lib_setsockopt+0x570/0x570 [ 130.191500] [] compat_SyS_setsockopt+0x14c/0x2a0 [ 130.191507] [] ? sock_common_setsockopt+0xe0/0xe0 [ 130.191514] [] ? scm_detach_fds_compat+0x3b0/0x3b0 [ 130.191522] [] ? do_fast_syscall_32+0xcf/0x870 [ 130.191529] [] ? scm_detach_fds_compat+0x3b0/0x3b0 [ 130.191536] [] do_fast_syscall_32+0x2f7/0x870 [ 130.191543] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 130.191551] [] entry_SYSENTER_compat+0x90/0xa2 [ 130.191553] Mem-Info: [ 130.191568] active_anon:1110 inactive_anon:43 isolated_anon:0 [ 130.191568] active_file:22 inactive_file:27 isolated_file:0 [ 130.191568] unevictable:0 dirty:0 writeback:0 unstable:0 [ 130.191568] slab_reclaimable:5655 slab_unreclaimable:57459 [ 130.191568] mapped:70 shmem:50 pagetables:235 bounce:0 [ 130.191568] free:18 free_pcp:0 free_cma:0 [ 130.191583] Node 0 active_anon:4440kB inactive_anon:172kB active_file:88kB inactive_file:108kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:280kB dirty:0kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 12288kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 130.191599] DMA free:20kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.191602] 0 2906 6407 6407DMA32 free:0kB min:30580kB low:38224kB high:45868kB active_anon:40kB inactive_anon:12kB active_file:24kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129292kB managed:2978500kB mlocked:0kB slab_reclaimable:36kB slab_unreclaimable:892kB kernel_stack:64kB pagetables:64kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.191628] 0 0 3501 3501Normal free:120kB min:36836kB low:46044kB high:55252kB active_anon:4412kB inactive_anon:160kB active_file:96kB inactive_file:132kB unevictable:0kB writepending:0kB present:4718592kB managed:3585212kB mlocked:0kB slab_reclaimable:22584kB slab_unreclaimable:228944kB kernel_stack:4736kB pagetables:876kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.191654] 0 0 0 0DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Normal: 1*4kB (H) 1*8kB (H) 0*16kB 1*32kB (H) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 44kB [ 130.191763] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 130.191765] 120 total pagecache pages [ 130.191767] 0 pages in swap cache [ 130.191771] Swap cache stats: add 0, delete 0, find 0/0 [ 130.191773] Free swap = 0kB [ 130.191775] Total swap = 0kB [ 130.191777] 1965969 pages RAM [ 130.191779] 0 pages HighMem/MovableOnly [ 130.191781] 321064 pages reserved [ 130.205023] oom_reaper: reaped process 3760 (sshd), now anon-rss:0kB, file-rss:0kB, shmem-rss:4kB [ 130.223693] kworker/u4:0 invoked oom-killer: gfp_mask=0x26000c0(GFP_KERNEL|__GFP_NOTRACK), nodemask=0, order=0, oom_score_adj=0 [ 130.223698] kworker/u4:0 cpuset= [ 130.223702] / mems_allowed=0 [ 130.223713] CPU: 1 PID: 6 Comm: kworker/u4:0 Not tainted 4.9.112-g9e79039 #11 [ 130.223716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 130.223728] Workqueue: netns cleanup_net [ 130.223733] ffff8801d9a46f80 [ 130.223736] ffffffff81eb3249 ffff8801d9a47320 ffff8801d9a390e8 0000000000000000 [ 130.223746] ffff8801d9a47338 0000000000000000 ffff8801d9a47000 ffffffff81562619 [ 130.223756] 0000000000000000 0000000000000000 ffffffff839f9665Call Trace: [ 130.223774] [] dump_stack+0xc1/0x128 [ 130.223785] [] dump_header.isra.17+0x155/0x5a0 [ 130.223795] [] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 130.223804] [] ? ___ratelimit+0x53/0x401 [ 130.223812] [] oom_kill_process.cold.23+0xd/0x93a [ 130.223821] [] ? check_preemption_disabled+0x3b/0x170 [ 130.223831] [] ? out_of_memory+0x6dd/0xe80 [ 130.223839] [] out_of_memory+0x292/0xe80 [ 130.223846] [] ? out_of_memory+0x410/0xe80 [ 130.223854] [] ? oom_killer_disable+0x200/0x200 [ 130.223864] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 130.223871] [] __alloc_pages_slowpath+0x119d/0x1e50 [ 130.223880] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 130.223887] [] ? get_page_from_freelist+0xf2a/0x1a00 [ 130.223895] [] __alloc_pages_nodemask+0x354/0x700 [ 130.223903] [] ? netlink_broadcast_filtered+0x2ae/0x9f0 [ 130.223910] [] ? kobject_uevent_env+0x6d8/0xb80 [ 130.223917] [] ? kobject_uevent+0x1f/0x30 [ 130.223924] [] ? __alloc_pages_slowpath+0x1e50/0x1e50 [ 130.223934] [] ? new_slab+0x303/0x3d0 [ 130.223941] [] new_slab+0x335/0x3d0 [ 130.223949] [] ___slab_alloc.constprop.79+0x2ba/0x5a0 [ 130.223957] [] ? __lock_is_held+0xa2/0xf0 [ 130.223964] [] ? __alloc_skb+0xe6/0x600 [ 130.223971] [] ? __alloc_skb+0xe6/0x600 [ 130.223979] [] ? check_preemption_disabled+0x3b/0x170 [ 130.223986] [] ? __alloc_skb+0xe6/0x600 [ 130.223994] [] __slab_alloc.isra.72.constprop.78+0x50/0xa0 [ 130.224001] [] ? __alloc_skb+0xe6/0x600 [ 130.224009] [] kmem_cache_alloc+0x159/0x290 [ 130.224016] [] __alloc_skb+0xe6/0x600 [ 130.224023] [] ? copy_skb_header+0x2c0/0x2c0 [ 130.224031] [] ? netlink_has_listeners+0x1fb/0x330 [ 130.224038] [] kobject_uevent_env+0x587/0xb80 [ 130.224046] [] kobject_uevent+0x1f/0x30 [ 130.224052] [] kobject_release+0x144/0x1b0 [ 130.224059] [] kobject_put+0x6d/0xd0 [ 130.224067] [] net_rx_queue_update_kobjects+0x29e/0x3d0 [ 130.224077] [] ? ip_tunnel_encap_setup+0x5b0/0x5b0 [ 130.224083] [] netdev_unregister_kobject+0x9d/0x110 [ 130.224092] [] rollback_registered_many+0x550/0x920 [ 130.224100] [] ? free_netdev+0x300/0x300 [ 130.224113] [] unregister_netdevice_many.part.106+0x1b/0x110 [ 130.224121] [] unregister_netdevice_many+0x39/0x50 [ 130.224128] [] ip_tunnel_delete_net+0x2af/0x390 [ 130.224137] [] ? rtnl_unlock+0xe/0x10 [ 130.224145] [] ? ip_tunnel_update+0x940/0x940 [ 130.224153] [] ? ipip_exit_net+0xf3/0x1f0 [ 130.224161] [] ipip_exit_net+0x129/0x1f0 [ 130.224168] [] ? ipip_rcv+0xbe0/0xbe0 [ 130.224175] [] ? ipip_rcv+0xbe0/0xbe0 [ 130.224182] [] ops_exit_list.isra.6+0xb0/0x160 [ 130.224189] [] cleanup_net+0x321/0x630 [ 130.224196] [] ? net_drop_ns+0x80/0x80 [ 130.224203] [] ? __lock_is_held+0xa2/0xf0 [ 130.224212] [] process_one_work+0x7e1/0x1500 [ 130.224219] [] ? process_one_work+0x728/0x1500 [ 130.224227] [] ? pwq_dec_nr_in_flight+0x2e0/0x2e0 [ 130.224235] [] worker_thread+0xd6/0x10a0 [ 130.224243] [] kthread+0x26d/0x300 [ 130.224250] [] ? process_one_work+0x1500/0x1500 [ 130.224257] [] ? kthread_park+0xa0/0xa0 [ 130.224264] [] ? kthread_park+0xa0/0xa0 [ 130.224270] [] ? kthread_park+0xa0/0xa0 [ 130.224277] [] ret_from_fork+0x5c/0x70 [ 130.224280] Mem-Info: [ 130.224298] active_anon:910 inactive_anon:43 isolated_anon:0 [ 130.224298] active_file:22 inactive_file:27 isolated_file:0 [ 130.224298] unevictable:0 dirty:0 writeback:0 unstable:0 [ 130.224298] slab_reclaimable:5655 slab_unreclaimable:57459 [ 130.224298] mapped:70 shmem:50 pagetables:198 bounce:0 [ 130.224298] free:5143 free_pcp:166 free_cma:0 [ 130.224313] Node 0 active_anon:3640kB inactive_anon:172kB active_file:88kB inactive_file:108kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:280kB dirty:0kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 12288kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 130.224329] DMA free:20kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.224333] 0 2906 6407 6407DMA32 free:0kB min:30580kB low:38224kB high:45868kB active_anon:40kB inactive_anon:12kB active_file:24kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129292kB managed:2978500kB mlocked:0kB slab_reclaimable:36kB slab_unreclaimable:892kB kernel_stack:64kB pagetables:64kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.224361] 0 0 3501 3501Normal free:20620kB min:36836kB low:46044kB high:55252kB active_anon:3612kB inactive_anon:160kB active_file:96kB inactive_file:132kB unevictable:0kB writepending:0kB present:4718592kB managed:3585212kB mlocked:0kB slab_reclaimable:22584kB slab_unreclaimable:228944kB kernel_stack:4736kB pagetables:728kB bounce:0kB free_pcp:664kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.224389] 0 0 0 0DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Normal: 201*4kB (UMH) 26*8kB (UMH) 6*16kB (U) 8*32kB (UH) 5*64kB (U) 8*128kB (U) 4*256kB (U) 3*512kB (U) 3*1024kB (U) 2*2048kB (U) 2*4096kB (U) = 20628kB [ 130.224527] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 130.224530] 120 total pagecache pages [ 130.224532] 0 pages in swap cache [ 130.224536] Swap cache stats: add 0, delete 0, find 0/0 [ 130.224538] Free swap = 0kB [ 130.224540] Total swap = 0kB [ 130.224543] 1965969 pages RAM [ 130.224545] 0 pages HighMem/MovableOnly [ 130.224547] 321064 pages reserved [ 130.224550] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 130.224567] [ 2042] 0 2042 5381 176 16 3 0 -1000 udevd [ 130.224576] [ 2277] 0 2277 5380 177 15 3 0 -1000 udevd [ 130.224583] [ 2278] 0 2278 5380 175 15 3 0 -1000 udevd [ 130.224591] [ 3587] 0 3587 30615 168 25 3 0 0 rsyslogd [ 130.224598] [ 3630] 0 3630 4724 49 15 3 0 0 cron [ 130.224607] [ 3656] 0 3656 12489 152 30 3 0 -1000 sshd [ 130.224614] [ 3686] 0 3686 3648 41 12 3 0 0 getty [ 130.224632] [ 3828] 0 3828 9301 0 7 2 0 0 syz-executor3 [ 130.224643] [ 3844] 0 3844 9301 0 7 2 0 0 syz-executor4 [ 130.224655] [ 3885] 0 3885 9301 0 7 2 0 0 syz-executor5 [ 130.224666] [ 3934] 0 3934 9301 0 7 2 0 0 syz-executor1 [ 130.224676] [ 3949] 0 3949 9301 0 7 2 0 0 syz-executor7 [ 130.224687] [ 3959] 0 3959 9301 0 7 2 0 0 syz-executor2 [ 130.224697] [ 3965] 0 3965 9301 0 7 2 0 0 syz-executor0 [ 130.224702] Out of memory: Kill process 3587 (rsyslogd) score 0 or sacrifice child [ 130.224755] Killed process 3587 (rsyslogd) total-vm:122460kB, anon-rss:672kB, file-rss:0kB, shmem-rss:0kB [ 130.246646] oom_reaper: reaped process 3587 (rsyslogd), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 130.246877] oom_reaper: reaped process 3588 (rs:main Q:Reg), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 130.247104] oom_reaper: reaped process 3590 (rsyslogd), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 130.263799] kworker/u4:0 invoked oom-killer: gfp_mask=0x26000c0(GFP_KERNEL|__GFP_NOTRACK), nodemask=0, order=0, oom_score_adj=0 [ 130.263803] kworker/u4:0 cpuset= [ 130.263807] / mems_allowed=0 [ 130.263818] CPU: 1 PID: 6 Comm: kworker/u4:0 Not tainted 4.9.112-g9e79039 #11 [ 130.263821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 130.263834] Workqueue: netns cleanup_net [ 130.263838] ffff8801d9a46f80 [ 130.263840] ffffffff81eb3249 ffff8801d9a47320 ffff8801d9a390e8 0000000000000000 [ 130.263850] ffff8801d9a47338 0000000000000000 ffff8801d9a47000 ffffffff81562619 [ 130.263859] 0000000000000000 0000000000000000 ffffffff839f9665Call Trace: [ 130.263877] [] dump_stack+0xc1/0x128 [ 130.263888] [] dump_header.isra.17+0x155/0x5a0 [ 130.263898] [] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 130.263906] [] ? ___ratelimit+0x53/0x401 [ 130.263913] [] oom_kill_process.cold.23+0xd/0x93a [ 130.263922] [] ? check_preemption_disabled+0x3b/0x170 [ 130.263932] [] ? out_of_memory+0x6dd/0xe80 [ 130.263938] [] out_of_memory+0x292/0xe80 [ 130.263945] [] ? out_of_memory+0x410/0xe80 [ 130.263952] [] ? oom_killer_disable+0x200/0x200 [ 130.263960] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 130.263968] [] __alloc_pages_slowpath+0x119d/0x1e50 [ 130.263974] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 130.263981] [] ? get_page_from_freelist+0xf2a/0x1a00 [ 130.263988] [] __alloc_pages_nodemask+0x354/0x700 [ 130.263996] [] ? netlink_broadcast_filtered+0x2ae/0x9f0 [ 130.264003] [] ? kobject_uevent_env+0x6d8/0xb80 [ 130.264009] [] ? kobject_uevent+0x1f/0x30 [ 130.264015] [] ? __alloc_pages_slowpath+0x1e50/0x1e50 [ 130.264024] [] ? new_slab+0x303/0x3d0 [ 130.264031] [] new_slab+0x335/0x3d0 [ 130.264038] [] ___slab_alloc.constprop.79+0x2ba/0x5a0 [ 130.264045] [] ? __lock_is_held+0xa2/0xf0 [ 130.264053] [] ? __alloc_skb+0xe6/0x600 [ 130.264060] [] ? __alloc_skb+0xe6/0x600 [ 130.264067] [] ? check_preemption_disabled+0x3b/0x170 [ 130.264074] [] ? __alloc_skb+0xe6/0x600 [ 130.264082] [] __slab_alloc.isra.72.constprop.78+0x50/0xa0 [ 130.264088] [] ? __alloc_skb+0xe6/0x600 [ 130.264095] [] kmem_cache_alloc+0x159/0x290 [ 130.264106] [] __alloc_skb+0xe6/0x600 [ 130.264114] [] ? copy_skb_header+0x2c0/0x2c0 [ 130.264120] [] ? netlink_has_listeners+0x1fb/0x330 [ 130.264127] [] kobject_uevent_env+0x587/0xb80 [ 130.264134] [] kobject_uevent+0x1f/0x30 [ 130.264141] [] kobject_release+0x144/0x1b0 [ 130.264147] [] kobject_put+0x6d/0xd0 [ 130.264155] [] net_rx_queue_update_kobjects+0x29e/0x3d0 [ 130.264164] [] ? ip_tunnel_encap_setup+0x5b0/0x5b0 [ 130.264171] [] netdev_unregister_kobject+0x9d/0x110 [ 130.264179] [] rollback_registered_many+0x550/0x920 [ 130.264186] [] ? free_netdev+0x300/0x300 [ 130.264195] [] unregister_netdevice_many.part.106+0x1b/0x110 [ 130.264202] [] unregister_netdevice_many+0x39/0x50 [ 130.264209] [] ip_tunnel_delete_net+0x2af/0x390 [ 130.264217] [] ? rtnl_unlock+0xe/0x10 [ 130.264224] [] ? ip_tunnel_update+0x940/0x940 [ 130.264232] [] ? ipip_exit_net+0xf3/0x1f0 [ 130.264239] [] ipip_exit_net+0x129/0x1f0 [ 130.264246] [] ? ipip_rcv+0xbe0/0xbe0 [ 130.264253] [] ? ipip_rcv+0xbe0/0xbe0 [ 130.264259] [] ops_exit_list.isra.6+0xb0/0x160 [ 130.264265] [] cleanup_net+0x321/0x630 [ 130.264271] [] ? net_drop_ns+0x80/0x80 [ 130.264278] [] ? __lock_is_held+0xa2/0xf0 [ 130.264287] [] process_one_work+0x7e1/0x1500 [ 130.264294] [] ? process_one_work+0x728/0x1500 [ 130.264301] [] ? pwq_dec_nr_in_flight+0x2e0/0x2e0 [ 130.264309] [] worker_thread+0xd6/0x10a0 [ 130.264316] [] kthread+0x26d/0x300 [ 130.264323] [] ? process_one_work+0x1500/0x1500 [ 130.264328] [] ? kthread_park+0xa0/0xa0 [ 130.264336] [] ? kthread_park+0xa0/0xa0 [ 130.264342] [] ? kthread_park+0xa0/0xa0 [ 130.264348] [] ret_from_fork+0x5c/0x70 [ 130.264352] Mem-Info: [ 130.264369] active_anon:735 inactive_anon:43 isolated_anon:0 [ 130.264369] active_file:22 inactive_file:27 isolated_file:0 [ 130.264369] unevictable:0 dirty:0 writeback:0 unstable:0 [ 130.264369] slab_reclaimable:5655 slab_unreclaimable:57459 [ 130.264369] mapped:20 shmem:50 pagetables:161 bounce:0 [ 130.264369] free:7034 free_pcp:155 free_cma:0 [ 130.264384] Node 0 active_anon:2940kB inactive_anon:172kB active_file:88kB inactive_file:108kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:80kB dirty:0kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 12288kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 130.264399] DMA free:20kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.264403] 0 2906 6407 6407DMA32 free:0kB min:30580kB low:38224kB high:45868kB active_anon:40kB inactive_anon:12kB active_file:24kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129292kB managed:2978500kB mlocked:0kB slab_reclaimable:36kB slab_unreclaimable:892kB kernel_stack:64kB pagetables:64kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.264428] 0 0 3501 3501Normal free:28184kB min:36836kB low:46044kB high:55252kB active_anon:2912kB inactive_anon:160kB active_file:96kB inactive_file:132kB unevictable:0kB writepending:0kB present:4718592kB managed:3585212kB mlocked:0kB slab_reclaimable:22584kB slab_unreclaimable:228944kB kernel_stack:4608kB pagetables:580kB bounce:0kB free_pcp:620kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: [ 130.264454] 0 0 0 0DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Normal: 209*4kB (UMH) 24*8kB (UMH) 7*16kB (UM) 12*32kB (UH) 6*64kB (U) 8*128kB (U) 7*256kB (U) 6*512kB (U) 6*1024kB (U) 5*2048kB (U) 1*4096kB (M) = 28276kB [ 130.264584] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 130.264586] 120 total pagecache pages [ 130.264589] 0 pages in swap cache [ 130.264592] Swap cache stats: add 0, delete 0, find 0/0 [ 130.264594] Free swap = 0kB [ 130.264596] Total swap = 0kB [ 130.264599] 1965969 pages RAM [ 130.264601] 0 pages HighMem/MovableOnly [ 130.264603] 321064 pages reserved [ 130.264605] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 130.264625] [ 2042] 0 2042 5381 176 16 3 0 -1000 udevd [ 130.264635] [ 2277] 0 2277 5380 177 15 3 0 -1000 udevd [ 130.264645] [ 2278] 0 2278 5380 175 15 3 0 -1000 udevd [ 130.264655] [ 3630] 0 3630 4724 49 15 3 0 0 cron [ 130.264665] [ 3656] 0 3656 12489 152 30 3 0 -1000 sshd [ 130.264674] [ 3686] 0 3686 3648 41 12 3 0 0 getty [ 130.264691] [ 3828] 0 3828 9301 0 7 2 0 0 syz-executor3 [ 130.264702] [ 3844] 0 3844 9301 0 7 2 0 0 syz-executor4 [ 130.264712] [ 3885] 0 3885 9301 0 7 2 0 0 syz-executor5 [ 130.264722] [ 3934] 0 3934 9301 0 7 2 0 0 syz-executor1 [ 130.264732] [ 3949] 0 3949 9301 0 7 2 0 0 syz-executor7 [ 130.264743] [ 3959] 0 3959 9301 0 7 2 0 0 syz-executor2 [ 130.264753] [ 3965] 0 3965 9301 0 7 2 0 0 syz-executor0 [ 130.264758] Out of memory: Kill process 3630 (cron) score 0 or sacrifice child [ 130.264795] Killed process 3630 (cron) total-vm:18896kB, anon-rss:192kB, file-rss:4kB, shmem-rss:0kB [ 130.283678] kworker/u4:0 invoked oom-killer: gfp_mask=0x26000c0(GFP_KERNEL|__GFP_NOTRACK), nodemask=0, order=0, oom_score_adj=0 [ 130.283683] kworker/u4:0 cpuset= [ 130.283686] / mems_allowed=0 [ 130.283697] CPU: 1 PID: 6 Comm: kworker/u4:0 Not tainted 4.9.112-g9e79039 #11 [ 130.283700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 130.283712] Workqueue: netns cleanup_net [ 130.283716] ffff8801d9a46f80 [ 130.283719] ffffffff81eb3249 ffff8801d9a47320 ffff8801d9a390e8 0000000000000000 [ 130.283729] ffff8801d9a47338 0000000000000000 ffff8801d9a47000 ffffffff81562619 [ 130.283738] 0000000000000000 0000000000000000 ffffffff839f9665Call Trace: [ 130.283755] [] dump_stack+0xc1/0x128 [ 130.283767] [