Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 9.753639] 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: [ 20.373917] random: sshd: uninitialized urandom read (32 bytes read) [ 20.571983] random: sshd: uninitialized urandom read (32 bytes read) [ 20.724300] random: crng init done Warning: Permanently added '10.128.10.2' (ECDSA) to the list of known hosts. 2019/08/31 11:12:06 parsed 1 programs 2019/08/31 11:12:07 executed programs: 0 [ 43.050394] audit: type=1400 audit(1567249928.534:5): avc: denied { associate } for pid=2090 comm="syz-executor.4" name="syz4" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 44.478596] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 44.478596] to free 1096kB on behalf of 'syz-executor.3' (3005) because [ 44.478596] cache 54544kB is below limit 65536kB for oom_score_adj 12 [ 44.478596] Free memory is -13228kB above reserved [ 44.479763] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 44.479763] to free 1096kB on behalf of 'kswapd0' (33) because [ 44.479763] cache 53744kB is below limit 65536kB for oom_score_adj 12 [ 44.479763] Free memory is -12228kB above reserved [ 44.745353] oom_reaper: reaped process 3006 (syz-executor.4), now anon-rss:0kB, file-rss:4kB, shmem-rss:0kB [ 44.767657] oom_reaper: reaped process 3019 (syz-executor.1), now anon-rss:0kB, file-rss:4kB, shmem-rss:0kB [ 44.768116] syz-executor.1: vmalloc: allocation failure, allocated 4009984 of 8249344 bytes, mode:0x24080c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_ZERO) [ 44.768124] CPU: 0 PID: 3019 Comm: syz-executor.1 Not tainted 4.9.141+ #1 [ 44.768137] ffff8800120a7928 ffffffff81b42e79 1ffff10002414f27 dffffc0000000000 [ 44.768146] ffffffff82aa8ba0 0000000000000000 0000000000400000 ffff8800120a7a70 [ 44.768155] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 44.768156] Call Trace: [ 44.768170] [] dump_stack+0xc1/0x128 [ 44.768179] [] warn_alloc.cold.31+0x7f/0x9c [ 44.768188] [] ? zone_watermark_ok_safe+0x250/0x250 [ 44.768196] [] __vmalloc_node_range+0x3f8/0x600 [ 44.768205] [] ? xt_alloc_table_info+0xc9/0x100 [ 44.768211] [] __vmalloc_node_range+0x4a0/0x600 [ 44.768217] [] ? xt_alloc_table_info+0xc9/0x100 [ 44.768224] [] vmalloc+0x5b/0x70 [ 44.768230] [] ? xt_alloc_table_info+0xc9/0x100 [ 44.768235] [] xt_alloc_table_info+0xc9/0x100 [ 44.768243] [] do_ip6t_set_ctl+0x235/0x470 [ 44.768250] [] ? compat_do_ip6t_set_ctl+0x140/0x140 [ 44.768258] [] ? mutex_unlock+0x9/0x10 [ 44.768266] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 44.768272] [] nf_setsockopt+0x6d/0xc0 [ 44.768279] [] ipv6_setsockopt+0xc8/0x130 [ 44.768286] [] tcp_setsockopt+0x88/0xe0 [ 44.768293] [] sock_common_setsockopt+0x9a/0xe0 [ 44.768299] [] SyS_setsockopt+0x166/0x260 [ 44.768305] [] ? SyS_recv+0x40/0x40 [ 44.768313] [] ? __do_page_fault+0x554/0xa60 [ 44.768319] [] ? do_syscall_64+0x48/0x550 [ 44.768325] [] ? SyS_recv+0x40/0x40 [ 44.768331] [] do_syscall_64+0x19f/0x550 [ 44.768338] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 44.768341] Mem-Info: [ 44.768356] active_anon:5471 inactive_anon:41 isolated_anon:0 [ 44.768356] active_file:34 inactive_file:35 isolated_file:0 [ 44.768356] unevictable:0 dirty:0 writeback:0 unstable:0 [ 44.768356] slab_reclaimable:3977 slab_unreclaimable:58878 [ 44.768356] mapped:16 shmem:48 pagetables:542 bounce:0 [ 44.768356] free:451 free_pcp:9 free_cma:0 [ 44.768368] Node 0 active_anon:21884kB inactive_anon:164kB active_file:136kB inactive_file:140kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:64kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 44.768384] DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:468kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:16kB slab_unreclaimable:56kB kernel_stack:384kB pagetables:192kB bounce:0kB free_pcp:20kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 44.768407] Normal free:1824kB min:5580kB low:9168kB high:12756kB active_anon:21416kB inactive_anon:164kB active_file:136kB inactive_file:140kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:15892kB slab_unreclaimable:235456kB kernel_stack:4256kB pagetables:1976kB bounce:0kB free_pcp:16kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 44.768438] 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: 37*4kB (H) 28*8kB (H) 12*16kB (H) 14*32kB (H) 4*64kB (H) 4*128kB (H) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1780kB 93 total pagecache pages [ 44.768476] 0 pages in swap cache [ 44.768479] Swap cache stats: add 0, delete 0, find 0/0 [ 44.768481] Free swap = 0kB [ 44.768482] Total swap = 0kB [ 44.768485] 1965979 pages RAM [ 44.768486] 0 pages HighMem/MovableOnly [ 44.768488] 313617 pages reserved [ 44.788754] syz-executor.4: vmalloc: allocation failure, allocated 65327104 of 4221095936 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 44.788761] CPU: 0 PID: 3006 Comm: syz-executor.4 Not tainted 4.9.141+ #1 [ 44.788773] ffff88007f8379c0 ffffffff81b42e79 1ffff1000ff06f3a dffffc0000000000 [ 44.788782] ffffffff82aa8ba0 0000000000000000 0000000000400000 ffff88007f837b08 [ 44.788791] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 44.788793] Call Trace: [ 44.788804] [] dump_stack+0xc1/0x128 [ 44.788812] [] warn_alloc.cold.31+0x7f/0x9c [ 44.788820] [] ? zone_watermark_ok_safe+0x250/0x250 [ 44.788828] [] __vmalloc_node_range+0x3f8/0x600 [ 44.788835] [] ? xt_alloc_table_info+0xc9/0x100 [ 44.788841] [] vmalloc+0x5b/0x70 [ 44.788848] [] ? xt_alloc_table_info+0xc9/0x100 [ 44.788854] [] xt_alloc_table_info+0xc9/0x100 [ 44.788862] [] do_ip6t_set_ctl+0x235/0x470 [ 44.788869] [] ? compat_do_ip6t_set_ctl+0x140/0x140 [ 44.788877] [] ? mutex_unlock+0x9/0x10 [ 44.788884] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 44.788891] [] nf_setsockopt+0x6d/0xc0 [ 44.788898] [] ipv6_setsockopt+0xc8/0x130 [ 44.788904] [] tcp_setsockopt+0x88/0xe0 [ 44.788911] [] sock_common_setsockopt+0x9a/0xe0 [ 44.788918] [] SyS_setsockopt+0x166/0x260 [ 44.788924] [] ? SyS_recv+0x40/0x40 [ 44.788931] [] ? __do_page_fault+0x554/0xa60 [ 44.788937] [] ? do_syscall_64+0x48/0x550 [ 44.788943] [] ? SyS_recv+0x40/0x40 [ 44.788949] [] do_syscall_64+0x19f/0x550 [ 44.788956] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 44.788959] Mem-Info: [ 44.788973] active_anon:5471 inactive_anon:41 isolated_anon:0 [ 44.788973] active_file:34 inactive_file:35 isolated_file:0 [ 44.788973] unevictable:0 dirty:0 writeback:0 unstable:0 [ 44.788973] slab_reclaimable:3977 slab_unreclaimable:58878 [ 44.788973] mapped:16 shmem:48 pagetables:542 bounce:0 [ 44.788973] free:466 free_pcp:30 free_cma:0 [ 44.788985] Node 0 active_anon:21884kB inactive_anon:164kB active_file:136kB inactive_file:140kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:64kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 44.789001] DMA32 free:28kB min:4696kB low:7712kB high:10728kB active_anon:468kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:16kB slab_unreclaimable:56kB kernel_stack:352kB pagetables:192kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 44.789024] Normal free:1836kB min:5580kB low:9168kB high:12756kB active_anon:21416kB inactive_anon:164kB active_file:136kB inactive_file:140kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:15892kB slab_unreclaimable:235456kB kernel_stack:4256kB pagetables:1976kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 44.789055] 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: 37*4kB (H) 28*8kB (H) 12*16kB (H) 14*32kB (H) 4*64kB (H) 4*128kB (H) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1780kB 93 total pagecache pages [ 44.789093] 0 pages in swap cache [ 44.789096] Swap cache stats: add 0, delete 0, find 0/0 [ 44.789098] Free swap = 0kB [ 44.789100] Total swap = 0kB [ 44.789102] 1965979 pages RAM [ 44.789104] 0 pages HighMem/MovableOnly [ 44.789105] 313617 pages reserved [ 45.687314] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 45.687314] to free 160kB on behalf of 'syz-executor.3' (2942) because [ 45.687314] cache 172kB is below limit 6144kB for oom_score_adj 0 [ 45.687314] Free memory is -35604kB above reserved [ 45.687343] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 45.687343] to free 160kB on behalf of 'syz-executor.5' (3010) because [ 45.687343] cache 172kB is below limit 6144kB for oom_score_adj 0 [ 45.687343] Free memory is -35604kB above reserved [ 46.267262] syz-executor.3: page allocation failure: order:0, mode:0x2280020(GFP_ATOMIC|__GFP_NOTRACK) [ 46.267270] CPU: 1 PID: 2942 Comm: syz-executor.3 Not tainted 4.9.141+ #1 [ 46.267282] ffff8801db7075c8 ffffffff81b42e79 1ffff1003b6e0ebb ffff8801d7a70000 [ 46.267289] ffffffff82a974e0 0000000000000000 0000000002280020 ffff8801db707710 [ 46.267297] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 46.267298] Call Trace: [ 46.267313] [ 46.267314] [] dump_stack+0xc1/0x128 [ 46.267322] [] warn_alloc.cold.31+0x7f/0x9c [ 46.267330] [] ? zone_watermark_ok_safe+0x250/0x250 [ 46.267337] [] ? trace_hardirqs_on+0xd/0x10 [ 46.267343] [] ? get_page_from_freelist+0x23e/0x1d80 [ 46.267350] [] __alloc_pages_nodemask+0x628/0x1bd0 [ 46.267356] [] ? __lock_acquire+0x654/0x4a10 [ 46.267363] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 46.267370] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 46.267377] [] ? __lock_acquire+0x654/0x4a10 [ 46.267383] [] ? trace_hardirqs_on_caller+0x266/0x590 [ 46.267391] [] ? _find_next_bit.part.0+0xe0/0x120 [ 46.267399] [] new_slab+0x367/0x3d0 [ 46.267407] [] ___slab_alloc.constprop.33+0x2ed/0x470 [ 46.267416] [] ? __alloc_skb+0xe6/0x5b0 [ 46.267422] [] ? trace_hardirqs_on+0x10/0x10 [ 46.267429] [] ? check_preemption_disabled+0x3b/0x200 [ 46.267436] [] ? __alloc_skb+0xe6/0x5b0 [ 46.267444] [] __slab_alloc.isra.25.constprop.32+0x50/0xa0 [ 46.267451] [] ? __alloc_skb+0xe6/0x5b0 [ 46.267458] [] kmem_cache_alloc+0x212/0x2b0 [ 46.267464] [] ? mark_held_locks+0xc7/0x130 [ 46.267472] [] __alloc_skb+0xe6/0x5b0 [ 46.267479] [] ? __kmalloc_reserve.isra.5+0xc0/0xc0 [ 46.267487] [] ? ipv6_get_ifaddr+0x300/0x510 [ 46.267493] [] ? trace_hardirqs_on+0xd/0x10 [ 46.267501] [] ? __local_bh_enable_ip+0x6a/0xe0 [ 46.267510] [] ndisc_alloc_skb+0x144/0x330 [ 46.267518] [] ndisc_send_rs+0x2ff/0x670 [ 46.267524] [] ? __ipv6_get_lladdr+0x250/0x250 [ 46.267531] [] addrconf_rs_timer+0x27e/0x5a0 [ 46.267537] [] ? ipv6_get_lladdr+0x440/0x440 [ 46.267544] [] call_timer_fn+0x163/0x6e0 [ 46.267550] [] ? call_timer_fn+0xda/0x6e0 [ 46.267557] [] ? ipv6_get_lladdr+0x440/0x440 [ 46.267563] [] ? process_timeout+0x20/0x20 [ 46.267570] [] ? mark_held_locks+0xc7/0x130 [ 46.267577] [] ? _raw_spin_unlock_irq+0x27/0x50 [ 46.267583] [] ? ipv6_get_lladdr+0x440/0x440 [ 46.267590] [] ? trace_hardirqs_on_caller+0x266/0x590 [ 46.267597] [] ? ipv6_get_lladdr+0x440/0x440 [ 46.267602] [] expire_timers+0x234/0x580 [ 46.267609] [] ? collect_expired_timers+0x1d5/0x2b0 [ 46.267616] [] run_timer_softirq+0x208/0x5e0 [ 46.267622] [] ? expire_timers+0x580/0x580 [ 46.267630] [] ? check_preemption_disabled+0x3b/0x200 [ 46.267640] [] __do_softirq+0x20e/0x964 [ 46.267647] [] ? check_preemption_disabled+0x3b/0x200 [ 46.267654] [] irq_exit+0x11c/0x150 [ 46.267661] [] smp_apic_timer_interrupt+0x81/0xb0 [ 46.267668] [] apic_timer_interrupt+0x9d/0xb0 [ 46.267677] [ 46.267678] [] ? lock_acquire+0x173/0x3e0 [ 46.267685] [] ? find_lock_task_mm+0xf1/0x270 [ 46.267692] [] ? find_lock_task_mm+0x1e9/0x270 [ 46.267701] [] _raw_spin_lock+0x36/0x50 [ 46.267708] [] ? find_lock_task_mm+0xf1/0x270 [ 46.267715] [] find_lock_task_mm+0xf1/0x270 [ 46.267722] [] ? wake_oom_reaper+0xf0/0xf0 [ 46.267729] [] lowmem_scan+0x34f/0xaf0 [ 46.267735] [] ? lowmem_scan+0x24e/0xaf0 [ 46.267742] [] ? check_preemption_disabled+0x3b/0x200 [ 46.267751] [] shrink_slab.part.8+0x3c6/0xa00 [ 46.267759] [] ? unregister_shrinker+0x230/0x230 [ 46.267766] [] shrink_node+0x1ed/0x740 [ 46.267775] [] ? shrink_node_memcg.isra.19+0x12e0/0x12e0 [ 46.267784] [] ? __delayacct_freepages_start+0x41/0x80 [ 46.267792] [] try_to_free_pages+0x377/0xb80 [ 46.267799] [] ? shrink_node+0x740/0x740 [ 46.267807] [] __alloc_pages_nodemask+0x981/0x1bd0 [ 46.267814] [] ? _raw_spin_unlock_irq+0x38/0x50 [ 46.267823] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 46.267830] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 46.267839] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 46.267846] [] ? check_preemption_disabled+0x3b/0x200 [ 46.267854] [] __vmalloc_node_range+0x25b/0x600 [ 46.267863] [] ? xt_alloc_table_info+0xc9/0x100 [ 46.267869] [] vmalloc+0x5b/0x70 [ 46.267876] [] ? xt_alloc_table_info+0xc9/0x100 [ 46.267883] [] xt_alloc_table_info+0xc9/0x100 [ 46.267891] [] do_ip6t_set_ctl+0x235/0x470 [ 46.267898] [] ? compat_do_ip6t_set_ctl+0x140/0x140 [ 46.267906] [] ? mutex_unlock+0x9/0x10 [ 46.267914] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 46.267921] [] nf_setsockopt+0x6d/0xc0 [ 46.267928] [] ipv6_setsockopt+0xc8/0x130 [ 46.267936] [] tcp_setsockopt+0x88/0xe0 [ 46.267944] [] sock_common_setsockopt+0x9a/0xe0 [ 46.267951] [] SyS_setsockopt+0x166/0x260 [ 46.267957] [] ? SyS_recv+0x40/0x40 [ 46.267965] [] ? __do_page_fault+0x554/0xa60 [ 46.267972] [] ? do_syscall_64+0x48/0x550 [ 46.267978] [] ? SyS_recv+0x40/0x40 [ 46.267983] [] do_syscall_64+0x19f/0x550 [ 46.267991] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 46.267994] Mem-Info: [ 46.268010] active_anon:5453 inactive_anon:41 isolated_anon:0 [ 46.268010] active_file:20 inactive_file:23 isolated_file:0 [ 46.268010] unevictable:0 dirty:0 writeback:0 unstable:0 [ 46.268010] slab_reclaimable:3977 slab_unreclaimable:58878 [ 46.268010] mapped:14 shmem:48 pagetables:542 bounce:0 [ 46.268010] free:475 free_pcp:0 free_cma:0 [ 46.268022] Node 0 active_anon:21812kB inactive_anon:164kB active_file:80kB inactive_file:92kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:56kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:2 all_unreclaimable? yes [ 46.268039] DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:412kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:16kB slab_unreclaimable:56kB kernel_stack:352kB pagetables:192kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 46.268063] Normal free:1900kB min:5580kB low:9168kB high:12756kB active_anon:21400kB inactive_anon:164kB active_file:80kB inactive_file:92kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:15892kB slab_unreclaimable:235456kB kernel_stack:4256kB pagetables:1976kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB ** 42 printk messages dropped ** [ 46.268540] [] __alloc_skb+0xe6/0x5b0 [ 46.268547] [] ? __kmalloc_reserve.isra.5+0xc0/0xc0 [ 46.268554] [] ? ipv6_get_ifaddr+0x300/0x510 ** 62 printk messages dropped ** [ 46.268999] [] sock_common_setsockopt+0x9a/0xe0 [ 46.269006] [] SyS_setsockopt+0x166/0x260 [ 46.269012] [] ? SyS_recv+0x40/0x40 [ 46.269019] [] ? __do_page_fault+0x554/0xa60 [ 46.269025] [] ? do_syscall_64+0x48/0x550 [ 46.269032] [] ? SyS_recv+0x40/0x40 ** 1 printk messages dropped ** [ 46.269045] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 46.269048] Mem-Info: [ 46.269063] active_anon:5453 inactive_anon:41 isolated_anon:0 [ 46.269063] active_file:20 inactive_file:23 isolated_file:0 [ 46.269063] unevictable:0 dirty:0 writeback:0 unstable:0 [ 46.269063] slab_reclaimable:3977 slab_unreclaimable:58878 [ 46.269063] mapped:14 shmem:48 pagetables:542 bounce:0 [ 46.269063] free:475 free_pcp:0 free_cma:0 [ 46.269074] Node 0 active_anon:21812kB inactive_anon:164kB active_file:80kB inactive_file:92kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:56kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:2 all_unreclaimable? yes [ 46.269090] DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:412kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:16kB slab_unreclaimable:56kB kernel_stack:352kB pagetables:192kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 46.269119] Normal free:1900kB min:5580kB low:9168kB high:12756kB active_anon:21400kB inactive_anon:164kB active_file:80kB inactive_file:92kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:15892kB slab_unreclaimable:235456kB kernel_stack:4256kB pagetables:1976kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 46.269152] 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: 67*4kB (MH) 28*8kB (H) 12*16kB (H) 14*32kB (H) 4*64kB (H) 4*128kB (H) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1900kB 91 total pagecache pages [ 46.269192] 0 pages in swap cache [ 46.269196] Swap cache stats: add 0, delete 0, find 0/0 [ 46.269197] Free swap = 0kB [ 46.269199] Total swap = 0kB [ 46.269201] 1965979 pages RAM [ 46.269203] 0 pages HighMem/MovableOnly [ 46.269205] 313617 pages reserved [ 46.269210] SLUB: Unable to allocate memory on node -1, gfp=0x2080020(GFP_ATOMIC) [ 46.269216] cache: skbuff_head_cache, object size: 224, buffer size: 320, default order: 0, min order: 0 [ 46.269220] node 0: slabs: 575, objs: 6900, free: 0 [ 46.269224] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 46.427262] syz-executor.3: page allocation failure: order:0, mode:0x2280020(GFP_ATOMIC|__GFP_NOTRACK) [ 46.427270] CPU: 1 PID: 2942 Comm: syz-executor.3 Not tainted 4.9.141+ #1 [ 46.427283] ffff8801db7075c8 ffffffff81b42e79 1ffff1003b6e0ebb ffff8801d7a70000 [ 46.427291] ffffffff82a974e0 0000000000000000 0000000002280020 ffff8801db707710 [ 46.427300] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 46.427302] Call Trace: [ 46.427316] [ 46.427317] [] dump_stack+0xc1/0x128 [ 46.427324] [] warn_alloc.cold.31+0x7f/0x9c [ 46.427331] [] ? zone_watermark_ok_safe+0x250/0x250 [ 46.427337] [] ? get_page_from_freelist+0x23e/0x1d80 [ 46.427343] [] __alloc_pages_nodemask+0x628/0x1bd0 [ 46.427349] [] ? trace_hardirqs_on+0x10/0x10 ** 36 printk messages dropped ** [ 46.427535] [] ? collect_expired_timers+0x1d5/0x2b0 [ 46.427540] [] run_timer_softirq+0x208/0x5e0 ** 5 printk messages dropped ** [ 46.427569] [] smp_apic_timer_interrupt+0x81/0xb0 [ 46.427574] [] apic_timer_interrupt+0x9d/0xb0 [ 46.427580] [ 46.427580] [] ? lock_release+0x557/0xc20 [ 46.427586] [] ? find_lock_task_mm+0xf1/0x270 ** 47 printk messages dropped ** [ 46.427890] Normal: 67*4kB (MH) 28*8kB (H) 12*16kB (H) 14*32kB (H) 4*64kB (H) 4*128kB (H) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1900kB 91 total pagecache pages [ 46.427893] 0 pages in swap cache [ 46.427896] Swap cache stats: add 0, delete 0, find 0/0 [ 46.427897] Free swap = 0kB [ 46.427898] Total swap = 0kB [ 46.427900] 1965979 pages RAM [ 46.427901] 0 pages HighMem/MovableOnly [ 46.427903] 313617 pages reserved [ 46.427908] SLUB: Unable to allocate memory on node -1, gfp=0x2080020(GFP_ATOMIC) [ 46.427911] cache: skbuff_head_cache, object size: 224, buffer size: 320, default order: 0, min order: 0 [ 46.427915] node 0: slabs: 575, objs: 6900, free: 0 ** 110 printk messages dropped ** [ 46.587891] lowmem_reserve[]: 0 3505 3505 [ 46.587903] Normal free:1900kB min:5580kB low:9168kB high:12756kB active_anon:21400kB inactive_anon:164kB active_file:80kB inactive_file:92kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:15892kB slab_unreclaimable:235456kB kernel_stack:4256kB pagetables:1976kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB ** 54 printk messages dropped ** [ 46.667516] [] ? __ipv6_get_lladdr+0x250/0x250 [ 46.667520] [] addrconf_rs_timer+0x27e/0x5a0 ** 2 printk messages dropped ** [ 46.667534] [] ? call_timer_fn+0xda/0x6e0 [ 46.667539] [] ? ipv6_get_lladdr+0x440/0x440 [ 46.667543] [] ? process_timeout+0x20/0x20 [ 46.667547] [] ? mark_held_locks+0xc7/0x130 [ 46.667553] [] ? _raw_spin_unlock_irq+0x27/0x50 [ 46.667557] [] ? ipv6_get_lladdr+0x440/0x440 [ 46.667562] [] ? trace_hardirqs_on_caller+0x266/0x590 [ 46.667568] [] ? ipv6_get_lladdr+0x440/0x440 [ 46.667572] [] expire_timers+0x234/0x580 [ 46.667576] [] ? collect_expired_timers+0x1d5/0x2b0 [ 46.667581] [] run_timer_softirq+0x208/0x5e0 [ 46.667585] [] ? expire_timers+0x580/0x580 [ 46.667590] [] ? check_preemption_disabled+0x3b/0x200 [ 46.667597] [] __do_softirq+0x20e/0x964 [ 46.667602] [] ? check_preemption_disabled+0x3b/0x200 [ 46.667606] [] irq_exit+0x11c/0x150 [ 46.667611] [] smp_apic_timer_interrupt+0x81/0xb0 [ 46.667616] [] apic_timer_interrupt+0x9d/0xb0 [ 46.667623] [ 46.667623] [] ? lock_release+0x557/0xc20 [ 46.667628] [] ? find_lock_task_mm+0xf1/0x270 [ 46.667633] [] ? find_lock_task_mm+0xf1/0x270 [ 46.667638] [] find_lock_task_mm+0x15b/0x270 [ 46.667642] [] ? wake_oom_reaper+0xf0/0xf0 [ 46.667647] [] lowmem_scan+0x34f/0xaf0 [ 46.667651] [] ? lowmem_scan+0x24e/0xaf0 [ 46.667656] [] ? check_preemption_disabled+0x3b/0x200 [ 46.667662] [] shrink_slab.part.8+0x3c6/0xa00 [ 46.667667] [] ? unregister_shrinker+0x230/0x230 [ 46.667673] [] shrink_node+0x1ed/0x740 [ 46.667678] [] ? shrink_node_memcg.isra.19+0x12e0/0x12e0 ** 146 printk messages dropped ** [ 46.747838] lowmem_reserve[]: 0 3505 3505 ** 55 printk messages dropped ** [ 46.748143] [] call_timer_fn+0x163/0x6e0 [ 46.748147] [] ? call_timer_fn+0xda/0x6e0 ** 111 printk messages dropped ** [ 46.827506] [] ? rcu_read_lock_sched_held+0x103/0x120 ** 6 printk messages dropped ** [ 46.827540] [] ndisc_send_rs+0x12a/0x670 [ 46.827545] [] addrconf_rs_timer+0x27e/0x5a0 [ 46.827554] [] ? ipv6_get_lladdr+0x440/0x440 [ 46.827559] [] call_timer_fn+0x163/0x6e0 ** 60 printk messages dropped ** [ 46.827866] Node 0 active_anon:21812kB inactive_anon:164kB active_file:80kB inactive_file:92kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:56kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:2 all_unreclaimable? yes [ 46.827877] DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:412kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:16kB slab_unreclaimable:56kB kernel_stack:352kB pagetables:192kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 46.827894] Normal free:1900kB min:5580kB low:9168kB high:12756kB active_anon:21400kB inactive_anon:164kB active_file:80kB inactive_file:92kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:15892kB slab_unreclaimable:235456kB kernel_stack:4256kB pagetables:1976kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 46.827918] 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: 67*4kB (MH) 28*8kB (H) 12*16kB (H) 14*32kB (H) 4*64kB (H) 4*128kB (H) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1900kB 91 total pagecache pages [ 46.827945] 0 pages in swap cache [ 46.827947] Swap cache stats: add 0, delete 0, find 0/0 [ 46.827948] Free swap = 0kB [ 46.827950] Total swap = 0kB [ 46.827951] 1965979 pages RAM [ 46.827952] 0 pages HighMem/MovableOnly [ 46.827953] 313617 pages reserved [ 46.827958] SLUB: Unable to allocate memory on node -1, gfp=0x2080020(GFP_ATOMIC) [ 46.827962] cache: ip6_dst_cache, object size: 384, buffer size: 448, default order: 1, min order: 0 [ 46.827966] node 0: slabs: 20, objs: 360, free: 0 [ 47.707311] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 47.707311] to free 160kB on behalf of 'syz-executor.1' (3000) because [ 47.707311] cache 172kB is below limit 6144kB for oom_score_adj 0 [ 47.707311] Free memory is -35604kB above reserved [ 47.707341] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 47.707341] to free 160kB on behalf of 'syz-executor.5' (3010) because [ 47.707341] cache 172kB is below limit 6144kB for oom_score_adj 0 [ 47.707341] Free memory is -35604kB above reserved [ 48.717377] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 48.717377] to free 160kB on behalf of 'syz-executor.5' (2970) because [ 48.717377] cache 172kB is below limit 6144kB for oom_score_adj 0 [ 48.717377] Free memory is -35604kB above reserved [ 48.717469] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 48.717469] to free 160kB on behalf of 'syz-executor.5' (2089) because [ 48.717469] cache 172kB is below limit 6144kB for oom_score_adj 0 [ 48.717469] Free memory is -35604kB above reserved [ 49.727337] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 49.727337] to free 148kB on behalf of 'syz-executor.4' (2090) because [ 49.727337] cache 372kB is below limit 6144kB for oom_score_adj 0 [ 49.727337] Free memory is -13316kB above reserved [ 49.727348] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 49.727348] to free 148kB on behalf of 'syz-execprog' (2065) because [ 49.727348] cache 372kB is below limit 6144kB for oom_score_adj 0 [ 49.727348] Free memory is -13316kB above reserved ** 21 printk messages dropped ** [ 54.863584] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 54.863591] [] ? radix_tree_lookup_slot+0x85/0xc0 ** 55 printk messages dropped ** [ 55.290504] [] ext4_filemap_fault+0x71/0xa0 [ 55.290511] [] __do_fault+0x223/0x500 [ 55.290518] [] ? do_page_mkwrite+0x3e0/0x3e0 [ 55.290526] [] ? generic_file_readonly_mmap+0x190/0x190 [ 55.290533] [] handle_mm_fault+0x1326/0x2350 [ 55.290540] [] ? vm_insert_page+0x6f0/0x6f0 [ 55.290547] [] ? kvm_clock_read+0x23/0x40 [ 55.290555] [] ? kvm_clock_get_cycles+0x9/0x10 [ 55.290561] [] ? memset+0x31/0x40 [ 55.290569] [] __do_page_fault+0x403/0xa60 ** 98 printk messages dropped ** [ 56.180174] 1*32kB [] ? check_preemption_disabled+0x3b/0x200 ** 8 printk messages dropped ** [ 56.180204] (M) [] filemap_fault+0xaf1/0x1110 [ 56.180211] 4*256kB ** 81 printk messages dropped ** [ 56.180484] 0 pages HighMem/MovableOnly [ 56.180486] 313617 pages reserved [ 56.327618] syz-executor.0: page allocation stalls for 10030ms, order:0, mode:0x24201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD) [ 56.327627] CPU: 1 PID: 2081 Comm: syz-executor.0 Not tainted 4.9.141+ #1 [ 56.327642] ffff8801cde4f7c0 ffffffff81b42e79 1ffff10039bc9efa ffff8801d0c82f80 [ 56.327652] ffffffff82a97480 0000000000000001 0000000000400000 ffff8801cde4f908 [ 56.327662] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 56.327664] Call Trace: [ 56.327679] [] dump_stack+0xc1/0x128 [ 56.327689] [] warn_alloc.cold.31+0x7f/0x9c [ 56.327698] [] ? zone_watermark_ok_safe+0x250/0x250 [ 56.327707] [] ? shrink_node+0x740/0x740 [ 56.327715] [] __alloc_pages_nodemask+0x1566/0x1bd0 [ 56.327723] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 56.327732] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 56.327740] [] ? check_preemption_disabled+0x3b/0x200 [ 56.327748] [] ? find_get_entry+0x11a/0x570 [ 56.327755] [] ? find_get_entry+0x141/0x570 [ 56.327762] [] ? page_cache_prev_hole+0x80/0x80 [ 56.327770] [] ? pagecache_get_page+0x131/0x710 [ 56.327777] [] filemap_fault+0xaf1/0x1110 [ 56.327786] [] ext4_filemap_fault+0x71/0xa0 [ 56.327793] [] __do_fault+0x223/0x500 [ 56.327800] [] ? do_page_mkwrite+0x3e0/0x3e0 [ 56.327807] [] ? handle_mm_fault+0x1d4f/0x2350 [ 56.327815] [] handle_mm_fault+0x1326/0x2350 [ 56.327822] [] ? vm_insert_page+0x6f0/0x6f0 [ 56.327829] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 56.327838] [] __do_page_fault+0x403/0xa60 [ 56.327845] [] ? bad_area_access_error+0x3a0/0x3a0 [ 56.327855] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.327862] [] do_page_fault+0x27/0x30 [ 56.327871] [] page_fault+0x25/0x30 [ 56.327875] Mem-Info: [ 56.327892] active_anon:5375 inactive_anon:41 isolated_anon:0 [ 56.327892] active_file:27 inactive_file:55 isolated_file:0 [ 56.327892] unevictable:0 dirty:0 writeback:0 unstable:0 [ 56.327892] slab_reclaimable:3977 slab_unreclaimable:58545 [ 56.327892] mapped:44 shmem:48 pagetables:494 bounce:0 [ 56.327892] free:6025 free_pcp:89 free_cma:0 ** 159 printk messages dropped ** [ 59.679654] 137 total pagecache pages [ 59.679657] 0 pages in swap cache ** 152 printk messages dropped ** [ 59.940309] getty: page allocation stalls for 10040ms, order:0, mode:0x24201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD) [ 59.940316] CPU: 0 PID: 2058 Comm: getty Not tainted 4.9.141+ #1 [ 59.940328] ffff8801ce7cf7c0 ffffffff81b42e79 1ffff10039cf9efa ffff8801d14a17c0 ** 3 printk messages dropped ** [ 59.940359] [] dump_stack+0xc1/0x128 [ 59.940366] [] warn_alloc.cold.31+0x7f/0x9c [ 59.940375] [] ? zone_watermark_ok_safe+0x250/0x250 [ 59.940382] [] ? shrink_node+0x740/0x740 [ 59.940396] [] __alloc_pages_nodemask+0x1566/0x1bd0 [ 59.940404] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 59.940412] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 59.940420] [] ? radix_tree_lookup_slot+0x85/0xc0 [ 59.940427] [] ? find_get_entry+0x11a/0x570 [ 59.940434] [] ? find_get_entry+0x141/0x570 [ 59.940441] [] ? page_cache_prev_hole+0x80/0x80 [ 59.940449] [] ? pagecache_get_page+0x131/0x710 [ 59.940456] [] filemap_fault+0xaf1/0x1110 [ 59.940464] [] ext4_filemap_fault+0x71/0xa0 [ 59.940471] [] __do_fault+0x223/0x500 [ 59.940477] [] ? do_page_mkwrite+0x3e0/0x3e0 [ 59.940486] [] ? generic_file_readonly_mmap+0x190/0x190 [ 59.940493] [] handle_mm_fault+0x1326/0x2350 [ 59.940500] [] ? vm_insert_page+0x6f0/0x6f0 [ 59.940507] [] ? hrtimer_nanosleep+0x38c/0x550 [ 59.940514] [] ? memset+0x31/0x40 [ 59.940522] [] __do_page_fault+0x403/0xa60 [ 59.940529] [] ? bad_area_access_error+0x3a0/0x3a0 [ 59.940538] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 59.940545] [] do_page_fault+0x27/0x30 [ 59.940552] [] page_fault+0x25/0x30 [ 59.940555] Mem-Info: [ 59.940571] active_anon:5375 inactive_anon:41 isolated_anon:0 [ 59.940571] active_file:27 inactive_file:55 isolated_file:0 [ 59.940571] unevictable:0 dirty:0 writeback:0 unstable:0 [ 59.940571] slab_reclaimable:3977 slab_unreclaimable:58545 [ 59.940571] mapped:44 shmem:48 pagetables:494 bounce:0 [ 59.940571] free:6025 free_pcp:89 free_cma:0 [ 59.940583] Node 0 active_anon:21500kB inactive_anon:164kB active_file:108kB inactive_file:220kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:176kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes [ 59.940601] DMA32 free:18652kB min:4696kB low:7712kB high:10728kB active_anon:344kB inactive_anon:0kB active_file:68kB inactive_file:116kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:16kB slab_unreclaimable:56kB kernel_stack:224kB pagetables:96kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 59.940627] Normal free:5448kB min:5580kB low:9168kB high:12756kB active_anon:21156kB inactive_anon:164kB active_file:40kB inactive_file:104kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:15892kB slab_unreclaimable:234124kB kernel_stack:4160kB pagetables:1880kB bounce:0kB free_pcp:236kB local_pcp:116kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 59.940682] DMA32: 3*4kB (M) 6*8kB (UM) 4*16kB (UM) 1*32kB (U) 3*64kB (UM) 3*128kB (M) 4*256kB (UM) 3*512kB (UM) 5*1024kB (UM) 1*2048kB (U) 2*4096kB (U) = 18652kB ** 40 printk messages dropped ** [ 59.970565] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 59.970572] [] do_page_fault+0x27/0x30 [ 59.970579] [] page_fault+0x25/0x30 [ 59.970582] Mem-Info: [ 59.970598] active_anon:5375 inactive_anon:41 isolated_anon:0 [ 59.970598] active_file:27 inactive_file:55 isolated_file:0 [ 59.970598] unevictable:0 dirty:0 writeback:0 unstable:0 [ 59.970598] slab_reclaimable:3977 slab_unreclaimable:58545 [ 59.970598] mapped:44 shmem:48 pagetables:494 bounce:0 [ 59.970598] free:6025 free_pcp:89 free_cma:0 ** 50 printk messages dropped ** [ 60.009234] DMA32 free:18652kB min:4696kB low:7712kB high:10728kB active_anon:344kB inactive_anon:0kB active_file:68kB inactive_file:116kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:16kB slab_unreclaimable:56kB kernel_stack:224kB pagetables:96kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 60.009260] Normal free:5448kB min:5580kB low:9168kB high:12756kB active_anon:21156kB inactive_anon:164kB active_file:40kB inactive_file:104kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:15892kB slab_unreclaimable:234124kB kernel_stack:4160kB pagetables:1880kB bounce:0kB free_pcp:236kB local_pcp:116kB free_cma:0kB ** 126 printk messages dropped ** [ 65.349591] [] dump_stack+0xc1/0x128 [ 65.349601] [] warn_alloc.cold.31+0x7f/0x9c [ 65.349611] [] ? zone_watermark_ok_safe+0x250/0x250 [ 65.349620] [] ? shrink_node+0x740/0x740 [ 65.349629] [] __alloc_pages_nodemask+0x1566/0x1bd0 [ 65.349637] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 65.349646] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 65.349654] [] ? radix_tree_lookup_slot+0x85/0xc0 [ 65.349661] [] ? find_get_entry+0x11a/0x570 [ 65.349668] [] ? find_get_entry+0x141/0x570 [ 65.349675] [] ? page_cache_prev_hole+0x80/0x80 [ 65.349683] [] ? futex_wait_queue_me+0x24b/0x5c0 [ 65.349691] [] ? pagecache_get_page+0x131/0x710 [ 65.349698] [] filemap_fault+0xaf1/0x1110 [ 65.349707] [] ext4_filemap_fault+0x71/0xa0 [ 65.349714] [] __do_fault+0x223/0x500 [ 65.349720] [] ? do_page_mkwrite+0x3e0/0x3e0 [ 65.349729] [] ? generic_file_readonly_mmap+0x190/0x190 [ 65.349736] [] handle_mm_fault+0x1326/0x2350 [ 65.349743] [] ? vm_insert_page+0x6f0/0x6f0 [ 65.349751] [] ? kvm_clock_read+0x23/0x40 [ 65.349758] [] ? kvm_clock_get_cycles+0x9/0x10 [ 65.349765] [] ? memset+0x31/0x40 [ 65.349773] [] __do_page_fault+0x403/0xa60 [ 65.349780] [] ? bad_area_access_error+0x3a0/0x3a0 [ 65.349790] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 65.349797] [] do_page_fault+0x27/0x30 [ 65.349805] [] page_fault+0x25/0x30 [ 65.349808] Mem-Info: [ 65.349825] active_anon:5375 inactive_anon:41 isolated_anon:0 [ 65.349825] active_file:27 inactive_file:55 isolated_file:0 [ 65.349825] unevictable:0 dirty:0 writeback:0 unstable:0 [ 65.349825] slab_reclaimable:3977 slab_unreclaimable:58546 [ 65.349825] mapped:44 shmem:48 pagetables:494 bounce:0 [ 65.349825] free:6025 free_pcp:88 free_cma:0 ** 86 printk messages dropped ** [ 66.230023] [] ? handle_mm_fault+0x1d4f/0x2350 ** 86 printk messages dropped ** [ 69.599633] [] ? shrink_node+0x740/0x740 ** 51 printk messages dropped ** [ 69.609340] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 69.609349] [] ? check_preemption_disabled+0x3b/0x200 ** 236 printk messages dropped ** [ 70.461134] Call Trace: [ 70.461148] [] dump_stack+0xc1/0x128 [ 70.461158] [] warn_alloc.cold.31+0x7f/0x9c [ 70.461168] [] ? zone_watermark_ok_safe+0x250/0x250 ** 4 printk messages dropped ** [ 70.461212] [] ? radix_tree_lookup_slot+0x85/0xc0 [ 70.461219] [] ? find_get_entry+0x11a/0x570 ** 39 printk messages dropped ** [ 72.177326] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 72.177326] to free 148kB on behalf of 'init' (1) because [ 72.177326] cache 356kB is below limit 6144kB for oom_score_adj 0 [ 72.177326] Free memory is -13528kB above reserved [ 73.187347] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 73.187347] to free 148kB on behalf of 'syz-execprog' (2065) because [ 73.187347] cache 356kB is below limit 6144kB for oom_score_adj 0 [ 73.187347] Free memory is -13528kB above reserved [ 73.187446] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 73.187446] to free 148kB on behalf of 'kworker/1:1' (22) because [ 73.187446] cache 356kB is below limit 6144kB for oom_score_adj 0 [ 73.187446] Free memory is -13528kB above reserved [ 74.197358] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 74.197358] to free 148kB on behalf of 'getty' (2060) because [ 74.197358] cache 356kB is below limit 6144kB for oom_score_adj 0 [ 74.197358] Free memory is -13528kB above reserved [ 74.197369] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 74.197369] to free 148kB on behalf of 'syz-executor.0' (2081) because [ 74.197369] cache 356kB is below limit 6144kB for oom_score_adj 0 [ 74.197369] Free memory is -13528kB above reserved [ 74.862601] rsyslogd: page allocation stalls for 30060ms, order:0, mode:0x24201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD) [ 74.862610] CPU: 1 PID: 1901 Comm: rsyslogd Not tainted 4.9.141+ #1 [ 74.862626] ffff8801d4a0f7c0 ffffffff81b42e79 1ffff1003a941efa ffff8801d4a697c0 [ 74.862637] ffffffff82a97480 0000000000000001 0000000000400000 ffff8801d4a0f908 [ 74.862647] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 74.862648] Call Trace: [ 74.862664] [] dump_stack+0xc1/0x128 [ 74.862674] [] warn_alloc.cold.31+0x7f/0x9c [ 74.862683] [] ? zone_watermark_ok_safe+0x250/0x250 [ 74.862691] [] ? shrink_node+0x740/0x740 [ 74.862700] [] __alloc_pages_nodemask+0x1566/0x1bd0 [ 74.862709] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 74.862718] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 74.862727] [] ? radix_tree_lookup_slot+0x85/0xc0 [ 74.862734] [] ? find_get_entry+0x11a/0x570 [ 74.862741] [] ? find_get_entry+0x141/0x570 [ 74.862748] [] ? page_cache_prev_hole+0x80/0x80 [ 74.862756] [] ? do_syslog+0x88b/0xad0 [ 74.862764] [] ? pagecache_get_page+0x131/0x710 [ 74.862771] [] filemap_fault+0xaf1/0x1110 [ 74.862780] [] ext4_filemap_fault+0x71/0xa0 [ 74.862787] [] __do_fault+0x223/0x500 [ 74.862794] [] ? do_page_mkwrite+0x3e0/0x3e0 [ 74.862802] [] ? generic_file_readonly_mmap+0x190/0x190 [ 74.862809] [] handle_mm_fault+0x1326/0x2350 [ 74.862817] [] ? vm_insert_page+0x6f0/0x6f0 [ 74.862827] [] ? __mutex_unlock_slowpath+0x221/0x3c0 [ 74.862837] [] __do_page_fault+0x403/0xa60 [ 74.862845] [] ? bad_area_access_error+0x3a0/0x3a0 ** 27 printk messages dropped ** [ 75.269488] Call Trace: [ 75.269502] [] dump_stack+0xc1/0x128 [ 75.269512] [] warn_alloc.cold.31+0x7f/0x9c [ 75.269521] [] ? zone_watermark_ok_safe+0x250/0x250 ** 47 printk messages dropped ** [ 76.149902] Call Trace: [ 76.149916] [] dump_stack+0xc1/0x128 [ 76.149925] [] warn_alloc.cold.31+0x7f/0x9c [ 76.149935] [] ? zone_watermark_ok_safe+0x250/0x250 ** 4 printk messages dropped ** [ 76.149979] [] ? check_preemption_disabled+0x3b/0x200 [ 76.149986] [] ? find_get_entry+0x11a/0x570 [ 76.149993] [] ? find_get_entry+0x141/0x570 [ 76.150000] [] ? page_cache_prev_hole+0x80/0x80 [ 76.150008] [] ? pagecache_get_page+0x131/0x710 [ 76.150015] [] filemap_fault+0xaf1/0x1110 [ 76.150025] [] ext4_filemap_fault+0x71/0xa0 ** 83 printk messages dropped ** [ 76.348825] Call Trace: [ 76.348841] [] dump_stack+0xc1/0x128 ** 44 printk messages dropped ** [ 78.237327] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 78.237327] to free 148kB on behalf of 'syz-executor.5' (3010) because [ 78.237327] cache 356kB is below limit 6144kB for oom_score_adj 0 [ 78.237327] Free memory is -13528kB above reserved [ 79.247305] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 79.247305] to free 148kB on behalf of 'getty' (2056) because [ 79.247305] cache 356kB is below limit 6144kB for oom_score_adj 0 [ 79.247305] Free memory is -13528kB above reserved [ 79.247323] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 79.247323] to free 148kB on behalf of 'getty' (2060) because [ 79.247323] cache 356kB is below limit 6144kB for oom_score_adj 0 [ 79.247323] Free memory is -13528kB above reserved ** 1 printk messages dropped ** [ 79.520315] CPU: 1 PID: 1 Comm: init Not tainted 4.9.141+ #1 [ 79.520331] ffff8801da6077c0 ffffffff81b42e79 1ffff1003b4c0efa ffff8801da5f8000 [ 79.520341] ffffffff82a97480 0000000000000001 0000000000400000 ffff8801da607908 [ 79.520351] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 79.520353] Call Trace: [ 79.520368] [] dump_stack+0xc1/0x128 [ 79.520378] [] warn_alloc.cold.31+0x7f/0x9c [ 79.520387] [] ? zone_watermark_ok_safe+0x250/0x250 [ 79.520395] [] ? shrink_node+0x740/0x740 [ 79.520405] [] __alloc_pages_nodemask+0x1566/0x1bd0 [ 79.520413] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 79.520422] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 79.520430] [] ? radix_tree_lookup_slot+0x85/0xc0 [ 79.520437] [] ? find_get_entry+0x11a/0x570 [ 79.520444] [] ? find_get_entry+0x141/0x570 [ 79.520451] [] ? page_cache_prev_hole+0x80/0x80 [ 79.520459] [] ? autoremove_wake_function+0x40/0x40 [ 79.520467] [] ? pagecache_get_page+0x131/0x710 [ 79.520475] [] filemap_fault+0xaf1/0x1110 [ 79.520483] [] ext4_filemap_fault+0x71/0xa0 [ 79.520490] [] __do_fault+0x223/0x500 ** 133 printk messages dropped ** [ 79.629619] [] __alloc_pages_nodemask+0x1566/0x1bd0 ** 47 printk messages dropped ** [ 79.880336] [] __alloc_pages_nodemask+0x1566/0x1bd0 ** 102 printk messages dropped ** [ 79.938341] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 79.938350] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 79.938358] [] ? radix_tree_lookup_slot+0x85/0xc0 [ 79.938375] [] ? find_get_entry+0x11a/0x570 [ 79.938382] [] ? find_get_entry+0x141/0x570 [ 79.938389] [] ? page_cache_prev_hole+0x80/0x80 ** 36 printk messages dropped ** [ 82.277319] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 82.277319] to free 148kB on behalf of 'syz-executor.0' (3014) because [ 82.277319] cache 356kB is below limit 6144kB for oom_score_adj 0 [ 82.277319] Free memory is -13528kB above reserved ** 1 printk messages dropped ** [ 83.287362] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 83.287362] to free 148kB on behalf of 'syz-execprog' (2065) because [ 83.287362] cache 356kB is below limit 6144kB for oom_score_adj 0 [ 83.287362] Free memory is -13528kB above reserved [ 83.287374] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 83.287374] to free 148kB on behalf of 'syz-executor.5' (3010) because [ 83.287374] cache 356kB is below limit 6144kB for oom_score_adj 0 [ 83.287374] Free memory is -13528kB above reserved [ 84.297374] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 84.297374] to free 148kB on behalf of 'syz-executor.5' (3010) because [ 84.297374] cache 356kB is below limit 6144kB for oom_score_adj 0 [ 84.297374] Free memory is -13528kB above reserved [ 84.297385] lowmemorykiller: Killing 'syz-executor.3' (2942) (tgid 2936), adj 1000, [ 84.297385] to free 148kB on behalf of 'syz-executor.5' (2089) because [ 84.297385] cache 356kB is below limit 6144kB for oom_score_adj 0 [ 84.297385] Free memory is -13528kB above reserved [ 84.830988] warn_alloc: 4 callbacks suppressed [ 84.831003] rsyslogd: page allocation stalls for 40030ms, order:0, mode:0x24201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD) [ 84.831012] CPU: 1 PID: 1901 Comm: rsyslogd Not tainted 4.9.141+ #1 [ 84.831028] ffff8801d4a0f7c0 ffffffff81b42e79 1ffff1003a941efa ffff8801d4a697c0 [ 84.831038] ffffffff82a97480 0000000000000001 0000000000400000 ffff8801d4a0f908 [ 84.831048] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 84.831050] Call Trace: [ 84.831066] [] dump_stack+0xc1/0x128 [ 84.831076] [] warn_alloc.cold.31+0x7f/0x9c [ 84.831085] [] ? zone_watermark_ok_safe+0x250/0x250 [ 84.831094] [] ? shrink_node+0x740/0x740 [ 84.831103] [] __alloc_pages_nodemask+0x1566/0x1bd0 [ 84.831112] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 84.831121] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 84.831130] [] ? radix_tree_lookup_slot+0x85/0xc0 [ 84.831137] [] ? find_get_entry+0x11a/0x570 [ 84.831144] [] ? find_get_entry+0x141/0x570 [ 84.831151] [] ? page_cache_prev_hole+0x80/0x80 [ 84.831159] [] ? do_syslog+0x88b/0xad0 [ 84.831167] [] ? pagecache_get_page+0x131/0x710 [ 84.831174] [] filemap_fault+0xaf1/0x1110 [ 84.831183] [] ext4_filemap_fault+0x71/0xa0 [ 84.831189] [] __do_fault+0x223/0x500 [ 84.831196] [] ? do_page_mkwrite+0x3e0/0x3e0 [ 84.831204] [] ? generic_file_readonly_mmap+0x190/0x190 [ 84.831212] [] handle_mm_fault+0x1326/0x2350 [ 84.831219] [] ? vm_insert_page+0x6f0/0x6f0 ** 25 printk messages dropped ** [ 85.380045] syz-execprog: page allocation stalls for 40140ms, order:0, mode:0x24201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD) [ 85.380054] CPU: 0 PID: 2065 Comm: syz-execprog Not tainted 4.9.141+ #1 [ 85.380070] ffff8801ce2cf7c0 ffffffff81b42e79 1ffff10039c59efa ffff8801cea917c0 ** 44 printk messages dropped ** [ 85.380516] Total swap = 0kB [ 85.380518] 1965979 pages RAM [ 85.380520] 0 pages HighMem/MovableOnly [ 85.380523] 313617 pages reserved [ 86.247744] syz-executor.3: page allocation stalls for 40130ms, order:0, mode:0x24201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD) ** 3 printk messages dropped ** [ 86.247788] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 86.247790] Call Trace: [ 86.247804] [] dump_stack+0xc1/0x128 [ 86.247814] [] warn_alloc.cold.31+0x7f/0x9c [ 86.247823] [] ? zone_watermark_ok_safe+0x250/0x250 ** 89 printk messages dropped ** [ 86.349117] syz-executor.0: page allocation stalls for 40050ms, order:0, mode:0x24201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD) ** 43 printk messages dropped ** [ 86.349545] Total swap = 0kB [ 86.349548] 1965979 pages RAM [ 86.349550] 0 pages HighMem/MovableOnly ** 43 printk messages dropped ** [ 89.559000] lowmem_reserve[]: 0 3505 3505 [ 89.559019] Normal free:5324kB min:5580kB low:9168kB high:12756kB active_anon:21156kB inactive_anon:164kB active_file:40kB inactive_file:104kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:15892kB slab_unreclaimable:234128kB kernel_stack:4160kB pagetables:1880kB bounce:0kB free_pcp:344kB local_pcp:104kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 89.559075] DMA32: 3*4kB (M) 6*8kB (UM) 4*16kB (UM) 1*32kB (U) 3*64kB (UM) 3*128kB (M) 4*256kB (UM) 3*512kB (UM) 5*1024kB (UM) 1*2048kB (U) 2*4096kB (U) = 18652kB Normal: 173*4kB (MH) 124*8kB (UMH) 71*16kB (MH) 44*32kB (UMH) 9*64kB (MH) 4*128kB (H) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5316kB 137 total pagecache pages [ 89.559120] 0 pages in swap cache [ 89.559124] Swap cache stats: add 0, delete 0, find 0/0 [ 89.559126] Free swap = 0kB [ 89.559128] Total swap = 0kB [ 89.559130] 1965979 pages RAM [ 89.559132] 0 pages HighMem/MovableOnly [ 89.559135] 313617 pages reserved [ 89.570197] syz-executor.1: page allocation stalls for 40010ms, order:0, mode:0x24201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD) [ 89.570205] CPU: 1 PID: 2085 Comm: syz-executor.1 Not tainted 4.9.141+ #1 [ 89.570218] ffff8801c46377c0 ffffffff81b42e79 1ffff100388c6efa ffff8801cfb9df00 [ 89.570228] ffffffff82a97480 0000000000000001 0000000000400000 ffff8801c4637908 [ 89.570238] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 89.570239] Call Trace: [ 89.570249] [] dump_stack+0xc1/0x128 [ 89.570256] [] warn_alloc.cold.31+0x7f/0x9c [ 89.570265] [] ? zone_watermark_ok_safe+0x250/0x250 [ 89.570277] [