Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 9.438378] 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: [ 39.738376] random: sshd: uninitialized urandom read (32 bytes read) [ 39.746696] random: crng init done Warning: Permanently added '10.128.0.63' (ECDSA) to the list of known hosts. 2019/01/01 18:08:19 parsed 1 programs 2019/01/01 18:08:20 executed programs: 0 [ 70.005853] audit: type=1400 audit(1546366100.805:5): avc: denied { sys_admin } for pid=2086 comm="syz-executor2" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 70.048203] audit: type=1400 audit(1546366100.845:6): avc: denied { net_admin } for pid=2092 comm="syz-executor4" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 70.283264] audit: type=1400 audit(1546366101.085:7): avc: denied { sys_chroot } for pid=2092 comm="syz-executor4" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 70.308980] audit: type=1400 audit(1546366101.115:8): avc: denied { associate } for pid=2095 comm="syz-executor0" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 71.524862] lowmemorykiller: Killing 'syz-executor0' (2233) (tgid 2230), adj 1000, [ 71.524862] to free 1028kB on behalf of 'kswapd0' (33) because [ 71.524862] cache 52228kB is below limit 65536kB for oom_score_adj 12 [ 71.524862] Free memory is -13268kB above reserved [ 71.554470] lowmemorykiller: Killing 'syz-executor0' (2233) (tgid 2230), adj 1000, [ 71.554470] to free 1028kB on behalf of 'syz-executor1' (2261) because [ 71.554470] cache 50028kB is below limit 65536kB for oom_score_adj 12 [ 71.554470] Free memory is -13460kB above reserved [ 71.807018] syz-executor5 invoked oom-killer: gfp_mask=0x24201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=0, order=0, oom_score_adj=0 [ 71.820703] CPU: 0 PID: 2097 Comm: syz-executor5 Not tainted 4.9.141+ #1 [ 71.827529] ffff8801c59b76f8 ffffffff81b42e79 ffff8801c59b7ab8 ffffffff833e92b0 [ 71.835582] 0000000000000000 ffff8801c59b7ad0 0000000000000000 ffff8801c59b7778 [ 71.843633] ffffffff814fb526 0000000000000000 0000000000000000 ffffffff82816fa5 [ 71.851698] Call Trace: [ 71.854293] [] dump_stack+0xc1/0x128 [ 71.859651] [] dump_header.isra.4+0x142/0x747 [ 71.865784] [] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 71.872707] [] ? ___ratelimit+0x53/0x401 [ 71.878402] [] oom_kill_process.cold.10+0xd/0xa6e [ 71.884880] [] ? has_capability_noaudit+0x24/0x30 [ 71.891364] [] ? check_preemption_disabled+0x3b/0x200 [ 71.898190] [] ? out_of_memory+0x6d4/0xe90 [ 71.904059] [] out_of_memory+0x292/0xe90 [ 71.909758] [] ? out_of_memory+0x410/0xe90 [ 71.915644] [] ? oom_killer_disable+0x200/0x200 [ 71.921944] [] ? trace_hardirqs_on+0xd/0x10 [ 71.927918] [] ? __alloc_pages_nodemask+0x1173/0x1bd0 [ 71.934757] [] __alloc_pages_nodemask+0x18ee/0x1bd0 [ 71.941420] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 71.948200] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 71.954858] [] ? check_preemption_disabled+0x3b/0x200 [ 71.961712] [] ? find_get_entry+0x11a/0x570 [ 71.967684] [] ? find_get_entry+0x141/0x570 [ 71.973636] [] ? page_cache_prev_hole+0x80/0x80 [ 71.979941] [] ? pagecache_get_page+0x131/0x710 [ 71.986244] [] filemap_fault+0xaf1/0x1110 [ 71.992035] [] ext4_filemap_fault+0x71/0xa0 [ 71.997991] [] __do_fault+0x223/0x500 [ 72.003437] [] ? do_page_mkwrite+0x3e0/0x3e0 [ 72.009480] [] ? generic_file_readonly_mmap+0x190/0x190 [ 72.016474] [] handle_mm_fault+0x1326/0x2350 [ 72.022525] [] ? vm_insert_page+0x6f0/0x6f0 [ 72.028506] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 72.035250] [] __do_page_fault+0x403/0xa60 [ 72.041116] [] ? bad_area_access_error+0x3a0/0x3a0 [ 72.047677] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 72.054332] [] do_page_fault+0x27/0x30 [ 72.059857] [] page_fault+0x25/0x30 [ 72.078661] Mem-Info: [ 72.081090] active_anon:5224 inactive_anon:42 isolated_anon:0 [ 72.081090] active_file:42 inactive_file:113 isolated_file:0 [ 72.081090] unevictable:0 dirty:8 writeback:5 unstable:0 [ 72.081090] slab_reclaimable:4561 slab_unreclaimable:56747 [ 72.081090] mapped:22 shmem:48 pagetables:450 bounce:0 [ 72.081090] free:6056 free_pcp:89 free_cma:0 [ 72.121085] Node 0 active_anon:20896kB inactive_anon:168kB active_file:248kB inactive_file:352kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:112kB dirty:32kB writeback:4kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:3037 all_unreclaimable? no [ 72.148257] DMA32 free:18716kB min:4696kB low:7712kB high:10728kB active_anon:120kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:16kB slab_unreclaimable:140kB kernel_stack:192kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 72.179083] lowmem_reserve[]: 0 3505 3505 [ 72.185083] Normal free:5408kB min:5580kB low:9168kB high:12756kB active_anon:20776kB inactive_anon:168kB active_file:124kB inactive_file:132kB unevictable:0kB writepending:36kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:18228kB slab_unreclaimable:226796kB kernel_stack:4032kB pagetables:1800kB bounce:0kB free_pcp:136kB local_pcp:4kB free_cma:0kB [ 72.218119] lowmem_reserve[]: 0 0 0 [ 72.222910] DMA32: 1*4kB (U) 1*8kB (M) 3*16kB (ME) 3*32kB (UME) 4*64kB (UME) 3*128kB (ME) 4*256kB (ME) 3*512kB (UME) 3*1024kB (ME) 2*2048kB (ME) 2*4096kB (M) = 18716kB [ 72.410763] Normal: 359*4kB (UMH) 137*8kB (UMEH) 66*16kB (UMEH) 35*32kB (UMEH) 10*64kB (UMEH) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5476kB 83 total pagecache pages [ 72.558314] 0 pages in swap cache [ 72.677868] Swap cache stats: add 0, delete 0, find 0/0 [ 72.727973] Free swap = 0kB [ 72.730986] Total swap = 0kB [ 72.771482] lowmemorykiller: Killing 'syz-executor0' (2233) (tgid 2230), adj 1000, [ 72.771482] to free 128kB on behalf of 'kworker/u4:1' (64) because [ 72.771482] cache 140kB is below limit 6144kB for oom_score_adj 0 [ 72.771482] Free memory is -13312kB above reserved [ 72.771493] lowmemorykiller: Killing 'syz-executor0' (2233) (tgid 2230), adj 1000, [ 72.771493] to free 128kB on behalf of 'kswapd0' (33) because [ 72.771493] cache 140kB is below limit 6144kB for oom_score_adj 0 [ 72.771493] Free memory is -13312kB above reserved [ 73.333662] 1965979 pages RAM [ 73.336772] 0 pages HighMem/MovableOnly [ 73.340728] 313617 pages reserved [ 73.457864] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 73.544017] [ 470] 0 470 5376 175 16 3 0 -1000 udevd [ 73.641366] [ 592] 0 592 5364 170 15 3 0 -1000 udevd [ 73.650120] [ 593] 0 593 5364 170 15 3 0 -1000 udevd [ 73.781476] lowmemorykiller: Killing 'syz-executor0' (2233) (tgid 2230), adj 1000, [ 73.781476] to free 128kB on behalf of 'syz-executor0' (2095) because [ 73.781476] cache 140kB is below limit 6144kB for oom_score_adj 0 [ 73.781476] Free memory is -13312kB above reserved [ 73.781487] lowmemorykiller: Killing 'syz-executor0' (2233) (tgid 2230), adj 1000, [ 73.781487] to free 128kB on behalf of 'syz-executor1' (2261) because [ 73.781487] cache 140kB is below limit 6144kB for oom_score_adj 0 [ 73.781487] Free memory is -13312kB above reserved [ 73.845086] [ 1761] 0 1761 2492 573 9 3 0 0 dhclient [ 73.845097] [ 1893] 0 1893 14231 108 23 3 0 0 rsyslogd ** 68 printk messages dropped ** [ 73.898278] [] ? vm_insert_page+0x6f0/0x6f0 [ 73.898300] [] ? debug_lockdep_rcu_enabled+0x77/0x90 ** 90 printk messages dropped ** [ 73.962199] [] ? do_syscall_64+0x48/0x550 ** 101 printk messages dropped ** [ 74.060310] [] ? do_page_mkwrite+0x3e0/0x3e0 ** 13 printk messages dropped ** [ 74.060432] lowmem_reserve[]: 0 3505 3505 ** 1 printk messages dropped ** [ 74.060457] lowmem_reserve[]: 0 0 0 [ 74.060488] DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB ** 20 printk messages dropped ** [ 74.060696] [ 2067] 0 2067 17820 196 41 3 0 0 sshd ** 101 printk messages dropped ** [ 74.078652] [ 2082] 0 2082 3648 44 12 3 0 0 getty [ 74.078662] [ 2083] 0 2083 3648 42 13 3 0 0 getty [ 74.078672] [ 2084] 0 2084 3648 42 13 3 0 0 getty [ 74.078682] [ 2085] 0 2085 3648 43 13 3 0 0 getty [ 74.078692] [ 2086] 0 2086 9376 16 5 2 0 0 syz-executor2 [ 74.078702] [ 2088] 0 2088 9376 15 5 2 0 0 syz-executor3 [ 74.078728] [ 2089] 0 2089 9376 16 5 2 0 0 syz-executor4 [ 74.078739] [ 2091] 0 2091 9376 16 5 2 0 0 syz-executor0 [ 74.078749] [ 2092] 0 2092 9376 17 6 3 0 0 syz-executor4 [ 74.078760] [ 2093] 0 2093 9376 16 6 3 0 0 syz-executor3 [ 74.078771] [ 2094] 0 2094 9376 16 5 2 0 0 syz-executor5 [ 74.078782] [ 2095] 0 2095 9376 17 6 3 0 0 syz-executor0 [ 74.078792] [ 2096] 0 2096 9376 15 5 2 0 0 syz-executor1 [ 74.078803] [ 2097] 0 2097 9376 17 6 3 0 0 syz-executor5 [ 74.078814] [ 2098] 0 2098 9376 17 6 3 0 0 syz-executor2 [ 74.078825] [ 2099] 0 2099 9376 16 6 3 0 0 syz-executor1 [ 74.078836] [ 2233] 0 2230 9475 0 9 4 0 1000 syz-executor0 [ 74.078847] [ 2244] 0 2243 9475 0 9 4 0 1000 syz-executor2 [ 74.078858] [ 2248] 0 2247 9475 0 9 4 0 1000 syz-executor4 [ 74.078869] [ 2253] 0 2249 9475 32 9 4 0 1000 syz-executor5 [ 74.078881] [ 2260] 0 2256 9475 31 9 4 0 1000 syz-executor3 [ 74.078892] [ 2261] 0 2259 9475 31 9 4 0 1000 syz-executor1 [ 74.078897] Out of memory: Kill process 2249 (syz-executor5) score 999 or sacrifice child [ 74.078917] Killed process 2253 (syz-executor5) total-vm:37900kB, anon-rss:128kB, file-rss:0kB, shmem-rss:0kB [ 74.090095] syz-executor4: vmalloc: allocation failure, allocated 1171968000 of 4261421056 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 74.090102] CPU: 0 PID: 2248 Comm: syz-executor4 Not tainted 4.9.141+ #1 [ 74.090114] ffff8801bdd27958 ffffffff81b42e79 1ffff10037ba4f2d dffffc0000000000 [ 74.090124] ffffffff82aa8ba0 0000000000000000 0000000000400000 ffff8801bdd27aa0 [ 74.090134] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 74.090135] Call Trace: [ 74.090145] [] dump_stack+0xc1/0x128 [ 74.090153] [] warn_alloc.cold.31+0x7f/0x9c [ 74.090161] [] ? zone_watermark_ok_safe+0x250/0x250 [ 74.090168] [] ? retint_kernel+0x2d/0x2d [ 74.090176] [] __vmalloc_node_range+0x3f8/0x600 [ 74.090183] [] ? xt_alloc_table_info+0xc9/0x100 [ 74.090190] [] vmalloc+0x5b/0x70 [ 74.090196] [] ? xt_alloc_table_info+0xc9/0x100 [ 74.090203] [] xt_alloc_table_info+0xc9/0x100 [ 74.090211] [] do_replace.isra.7+0xfd/0x470 [ 74.090218] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 74.090227] [] ? compat_do_replace.isra.6+0x4f0/0x4f0 [ 74.090234] [] ? selinux_capable+0x36/0x40 [ 74.090242] [] ? ns_capable_common+0x12a/0x150 [ 74.090249] [] do_arpt_set_ctl+0xff/0x140 [ 74.090256] [] nf_setsockopt+0x6d/0xc0 [ 74.090264] [] ip_setsockopt+0x88/0xa0 [ 74.090271] [] tcp_setsockopt+0x88/0xe0 [ 74.090278] [] sock_common_setsockopt+0x9a/0xe0 [ 74.090285] [] SyS_setsockopt+0x166/0x260 [ 74.090292] [] ? SyS_recv+0x40/0x40 [ 74.090299] [] ? SyS_clock_gettime+0x11e/0x1f0 [ 74.090307] [] ? SyS_clock_settime+0x220/0x220 [ 74.090313] [] ? do_syscall_64+0x48/0x550 [ 74.090320] [] ? SyS_recv+0x40/0x40 [ 74.090326] [] do_syscall_64+0x19f/0x550 [ 74.090334] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 74.090337] Mem-Info: [ 74.090353] active_anon:5174 inactive_anon:42 isolated_anon:0 [ 74.090353] active_file:13 inactive_file:22 isolated_file:0 [ 74.090353] unevictable:0 dirty:0 writeback:0 unstable:0 [ 74.090353] slab_reclaimable:4562 slab_unreclaimable:56712 [ 74.090353] mapped:4 shmem:48 pagetables:450 bounce:0 [ 74.090353] free:160 free_pcp:27 free_cma:0 [ 74.090366] Node 0 active_anon:20696kB inactive_anon:168kB active_file:52kB inactive_file:88kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:16kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes [ 74.090384] DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:120kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:16kB slab_unreclaimable:140kB kernel_stack:192kB pagetables:0kB bounce:0kB free_pcp:56kB local_pcp:56kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 74.090410] Normal free:640kB min:5580kB low:9168kB high:12756kB active_anon:20676kB inactive_anon:168kB active_file:52kB inactive_file:88kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:18232kB slab_unreclaimable:226708kB kernel_stack:4032kB pagetables:1800kB bounce:0kB free_pcp:52kB local_pcp:48kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 74.090460] 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: 31*4kB (H) 17*8kB (H) 7*16kB (H) 5*32kB (H) 1*64kB (H) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 596kB 83 total pagecache pages [ 74.090499] 0 pages in swap cache [ 74.090503] Swap cache stats: add 0, delete 0, find 0/0 [ 74.090505] Free swap = 0kB [ 74.090507] Total swap = 0kB [ 74.090509] 1965979 pages RAM [ 74.090511] 0 pages HighMem/MovableOnly [ 74.090513] 313617 pages reserved [ 74.101313] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 74.140668] syz-executor5: vmalloc: allocation failure, allocated 1116184576 of 4261421056 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 74.140675] CPU: 0 PID: 2253 Comm: syz-executor5 Not tainted 4.9.141+ #1 [ 74.140686] ffff8801b59bf958 ffffffff81b42e79 1ffff10036b37f2d dffffc0000000000 [ 74.140696] ffffffff82aa8ba0 0000000000000000 0000000000400000 ffff8801b59bfaa0 [ 74.140706] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 74.140707] Call Trace: [ 74.140716] [] dump_stack+0xc1/0x128 [ 74.140724] [] warn_alloc.cold.31+0x7f/0x9c [ 74.140732] [] ? zone_watermark_ok_safe+0x250/0x250 [ 74.140740] [] __vmalloc_node_range+0x3f8/0x600 [ 74.140747] [] ? xt_alloc_table_info+0xc9/0x100 [ 74.140753] [] vmalloc+0x5b/0x70 [ 74.140760] [] ? xt_alloc_table_info+0xc9/0x100 [ 74.140766] [] xt_alloc_table_info+0xc9/0x100 [ 74.140774] [] do_replace.isra.7+0xfd/0x470 [ 74.140781] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 74.140789] [] ? compat_do_replace.isra.6+0x4f0/0x4f0 [ 74.140796] [] ? selinux_capable+0x36/0x40 [ 74.140804] [] ? ns_capable_common+0x12a/0x150 [ 74.140811] [] do_arpt_set_ctl+0xff/0x140 [ 74.140818] [] nf_setsockopt+0x6d/0xc0 [ 74.140825] [] ip_setsockopt+0x88/0xa0 [ 74.140832] [] tcp_setsockopt+0x88/0xe0 [ 74.140840] [] sock_common_setsockopt+0x9a/0xe0 [ 74.140846] [] SyS_setsockopt+0x166/0x260 [ 74.140853] [] ? SyS_recv+0x40/0x40 [ 74.140860] [] ? SyS_clock_gettime+0x11e/0x1f0 [ 74.140867] [] ? SyS_clock_settime+0x220/0x220 [ 74.140874] [] ? do_syscall_64+0x48/0x550 [ 74.140880] [] ? SyS_recv+0x40/0x40 [ 74.140886] [] do_syscall_64+0x19f/0x550 [ 74.140894] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 74.140897] Mem-Info: [ 74.140912] active_anon:5174 inactive_anon:42 isolated_anon:0 [ 74.140912] active_file:13 inactive_file:22 isolated_file:0 [ 74.140912] unevictable:0 dirty:0 writeback:0 unstable:0 [ 74.140912] slab_reclaimable:4562 slab_unreclaimable:56712 [ 74.140912] mapped:4 shmem:48 pagetables:450 bounce:0 [ 74.140912] free:160 free_pcp:27 free_cma:0 [ 74.140925] Node 0 active_anon:20696kB inactive_anon:168kB active_file:52kB inactive_file:88kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:16kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes [ 74.140942] DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:120kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:16kB slab_unreclaimable:140kB kernel_stack:192kB pagetables:0kB bounce:0kB free_pcp:56kB local_pcp:56kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 74.140967] Normal free:640kB min:5580kB low:9168kB high:12756kB active_anon:20676kB inactive_anon:168kB active_file:52kB inactive_file:88kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:18232kB slab_unreclaimable:226708kB kernel_stack:4032kB pagetables:1800kB bounce:0kB free_pcp:52kB local_pcp:48kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 74.141002] 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: 31*4kB (H) 17*8kB (H) 7*16kB (H) 5*32kB (H) 1*64kB (H) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 596kB 83 total pagecache pages [ 74.141042] 0 pages in swap cache [ 74.141046] Swap cache stats: add 0, delete 0, find 0/0 [ 74.141048] Free swap = 0kB [ 74.141049] Total swap = 0kB [ 74.141052] 1965979 pages RAM [ 74.141053] 0 pages HighMem/MovableOnly [ 74.141055] 313617 pages reserved [ 74.171457] oom_reaper: reaped process 2253 (syz-executor5), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 74.173899] syz-executor5 invoked oom-killer: gfp_mask=0x24201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=0, order=0, oom_score_adj=0 [ 74.173907] CPU: 0 PID: 2097 Comm: syz-executor5 Not tainted 4.9.141+ #1 [ 74.173919] ffff8801c59b76f8 ffffffff81b42e79 ffff8801c59b7ab8 ffffffff833e92b0 [ 74.173930] 0000000000000000 ffff8801c59b7ad0 0000000000000000 ffff8801c59b7778 [ 74.173939] ffffffff814fb526 0000000000000000 0000000000000000 ffffffff82816fa5 [ 74.173941] Call Trace: [ 74.173951] [] dump_stack+0xc1/0x128 [ 74.173959] [] dump_header.isra.4+0x142/0x747 [ 74.173967] [] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 74.173974] [] ? ___ratelimit+0x53/0x401 [ 74.173982] [] oom_kill_process.cold.10+0xd/0xa6e [ 74.173990] [] ? has_capability_noaudit+0x24/0x30 [ 74.173998] [] ? check_preemption_disabled+0x3b/0x200 [ 74.174006] [] ? out_of_memory+0x6d4/0xe90 [ 74.174013] [] out_of_memory+0x292/0xe90 [ 74.174020] [] ? out_of_memory+0x410/0xe90 [ 74.174029] [] ? oom_killer_disable+0x200/0x200 [ 74.174036] [] ? trace_hardirqs_on+0xd/0x10 [ 74.174044] [] ? __alloc_pages_nodemask+0x1173/0x1bd0 [ 74.174053] [] __alloc_pages_nodemask+0x18ee/0x1bd0 [ 74.174060] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 74.174069] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 74.174077] [] ? check_preemption_disabled+0x3b/0x200 [ 74.174084] [] ? find_get_entry+0x11a/0x570 [ 74.174091] [] ? find_get_entry+0x141/0x570 [ 74.174098] [] ? page_cache_prev_hole+0x80/0x80 [ 74.174106] [] ? pagecache_get_page+0x131/0x710 [ 74.174113] [] filemap_fault+0xaf1/0x1110 [ 74.174121] [] ext4_filemap_fault+0x71/0xa0 [ 74.174128] [] __do_fault+0x223/0x500 [ 74.174135] [] ? do_page_mkwrite+0x3e0/0x3e0 [ 74.174143] [] ? generic_file_readonly_mmap+0x190/0x190 [ 74.174151] [] handle_mm_fault+0x1326/0x2350 [ 74.174158] [] ? vm_insert_page+0x6f0/0x6f0 [ 74.174165] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 74.174174] [] __do_page_fault+0x403/0xa60 [ 74.174182] [] ? bad_area_access_error+0x3a0/0x3a0 [ 74.174190] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 74.174197] [] do_page_fault+0x27/0x30 [ 74.174204] [] page_fault+0x25/0x30 [ 74.174207] Mem-Info: [ 74.174224] active_anon:5149 inactive_anon:42 isolated_anon:0 [ 74.174224] active_file:13 inactive_file:22 isolated_file:0 [ 74.174224] unevictable:0 dirty:0 writeback:0 unstable:0 [ 74.174224] slab_reclaimable:4562 slab_unreclaimable:56712 [ 74.174224] mapped:4 shmem:48 pagetables:450 bounce:0 [ 74.174224] free:160 free_pcp:46 free_cma:0 [ 74.174238] Node 0 active_anon:20596kB inactive_anon:168kB active_file:52kB inactive_file:88kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:16kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes [ 74.174256] DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:120kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:16kB slab_unreclaimable:140kB kernel_stack:192kB pagetables:0kB bounce:0kB free_pcp:76kB local_pcp:76kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 74.174284] Normal free:640kB min:5580kB low:9168kB high:12756kB active_anon:20576kB inactive_anon:168kB active_file:52kB inactive_file:88kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:18232kB slab_unreclaimable:226708kB kernel_stack:4032kB pagetables:1800kB bounce:0kB free_pcp:108kB local_pcp:104kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 74.174324] 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: 31*4kB (H) 17*8kB (H) 7*16kB (H) 5*32kB (H) 1*64kB (H) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 596kB 83 total pagecache pages [ 74.174369] 0 pages in swap cache [ 74.174373] Swap cache stats: add 0, delete 0, find 0/0 [ 74.174375] Free swap = 0kB [ 74.174377] Total swap = 0kB [ 74.174380] 1965979 pages RAM [ 74.174382] 0 pages HighMem/MovableOnly [ 74.174384] 313617 pages reserved [ 74.174387] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 74.174401] [ 470] 0 470 5376 175 16 3 0 -1000 udevd [ 74.174412] [ 592] 0 592 5364 170 15 3 0 -1000 udevd [ 74.174423] [ 593] 0 593 5364 170 15 3 0 -1000 udevd [ 74.174433] [ 1761] 0 1761 2492 573 9 3 0 0 dhclient [ 74.174444] [ 1893] 0 1893 14231 108 23 3 0 0 rsyslogd [ 74.174455] [ 1948] 0 1948 4724 51 15 3 0 0 cron [ 74.174465] [ 1953] 0 1953 3734 44 11 3 0 0 mcstransd [ 74.174476] [ 1968] 0 1968 12926 1232 27 3 0 0 restorecond [ 74.174487] [ 1994] 0 1994 12489 153 28 3 0 -1000 sshd [ 74.174497] [ 2024] 0 2024 3648 41 13 3 0 0 getty [ 74.174508] [ 2067] 0 2067 17820 196 41 3 0 0 sshd [ 74.174519] [ 2069] 0 2069 33386 1766 29 5 0 0 syz-execprog [ 74.174529] [ 2080] 0 2080 3648 44 13 3 0 0 getty [ 74.174540] [ 2081] 0 2081 3648 42 13 3 0 0 getty [ 74.174550] [ 2082] 0 2082 3648 44 12 3 0 0 getty [ 74.174561] [ 2083] 0 2083 3648 42 13 3 0 0 getty [ 74.174582] [ 2084] 0 2084 3648 42 13 3 0 0 getty [ 74.174600] [ 2085] 0 2085 3648 43 13 3 0 0 getty [ 74.174624] [ 2086] 0 2086 9376 16 5 2 0 0 syz-executor2 [ 74.174637] [ 2088] 0 2088 9376 15 5 2 0 0 syz-executor3 [ 74.174648] [ 2089] 0 2089 9376 16 5 2 0 0 syz-executor4 [ 74.174658] [ 2091] 0 2091 9376 16 5 2 0 0 syz-executor0 [ 74.174668] [ 2092] 0 2092 9376 17 6 3 0 0 syz-executor4 [ 74.174679] [ 2093] 0 2093 9376 16 6 3 0 0 syz-executor3 [ 74.174689] [ 2094] 0 2094 9376 16 5 2 0 0 syz-executor5 [ 74.174699] [ 2095] 0 2095 9376 17 6 3 0 0 syz-executor0 [ 74.174709] [ 2096] 0 2096 9376 15 5 2 0 0 syz-executor1 [ 74.174720] [ 2097] 0 2097 9376 17 6 3 0 0 syz-executor5 [ 74.174730] [ 2098] 0 2098 9376 17 6 3 0 0 syz-executor2 [ 74.174740] [ 2099] 0 2099 9376 16 6 3 0 0 syz-executor1 [ 74.174752] [ 2233] 0 2230 9475 0 9 4 0 1000 syz-executor0 [ 74.174762] [ 2244] 0 2243 9475 0 9 4 0 1000 syz-executor2 [ 74.174773] [ 2248] 0 2247 9475 0 9 4 0 1000 syz-executor4 [ 74.174784] [ 2253] 0 2249 9475 0 9 4 0 1000 syz-executor5 [ 74.174794] [ 2260] 0 2256 9475 31 9 4 0 1000 syz-executor3 [ 74.174819] [ 2261] 0 2259 9475 31 9 4 0 1000 syz-executor1 [ 74.174825] Out of memory: Kill process 2256 (syz-executor3) score 999 or sacrifice child [ 74.174839] Killed process 2260 (syz-executor3) total-vm:37900kB, anon-rss:124kB, file-rss:0kB, shmem-rss:0kB [ 74.181316] syz-executor1: page allocation failure: order:0, mode:0x2280020(GFP_ATOMIC|__GFP_NOTRACK) [ 74.181323] CPU: 1 PID: 2261 Comm: syz-executor1 Not tainted 4.9.141+ #1 [ 74.181333] ffff8801db7075c8 ffffffff81b42e79 1ffff1003b6e0ebb ffff8801cb85df00 [ 74.181342] ffffffff82a974e0 0000000000000000 [ 74.181342] SLUB: Unable to allocate memory on node -1, gfp=0x2080020(GFP_ATOMIC) [ 74.181349] 0000000002280020[ 74.181349] cache: skbuff_head_cache, object size: 224, buffer size: 320, default order: 0, min order: 0 [ 74.181352] ffff8801db707710 ffffffff814fc7c8 0000000041b58ab3 [ 74.181360] node 0: slabs: 714, objs: 8568, free: 0 [ 74.181365] ffffffff82e37a10 ffffffff81427db0[ 74.181366] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 74.181368] Call Trace: [ 74.181378] [ 74.181379] [] dump_stack+0xc1/0x128 [ 74.181386] [] warn_alloc.cold.31+0x7f/0x9c [ 74.181394] [] ? zone_watermark_ok_safe+0x250/0x250 [ 74.181401] [] ? trace_hardirqs_on+0xd/0x10 [ 74.181408] [] ? get_page_from_freelist+0x23e/0x1d80 [ 74.181416] [] __alloc_pages_nodemask+0x628/0x1bd0 [ 74.181423] [] ? mark_held_locks+0xc7/0x130 [ 74.181429] [] ? __lock_acquire+0x654/0x4a10 [ 74.181437] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 74.181444] [] ? trace_hardirqs_on+0x10/0x10 [ 74.181451] [] ? cpuacct_charge+0x1db/0x360 [ 74.181458] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 74.181466] [] new_slab+0x367/0x3d0 [ 74.181475] [] ___slab_alloc.constprop.33+0x2ed/0x470 [ 74.181482] [] ? __alloc_skb+0xe6/0x5b0 [ 74.181489] [] ? trace_hardirqs_on+0x10/0x10 [ 74.181496] [] ? check_preemption_disabled+0x3b/0x200 [ 74.181503] [] ? __alloc_skb+0xe6/0x5b0 [ 74.181511] [] __slab_alloc.isra.25.constprop.32+0x50/0xa0 [ 74.181518] [] ? __alloc_skb+0xe6/0x5b0 [ 74.181525] [] kmem_cache_alloc+0x212/0x2b0 [ 74.181532] [] ? mark_held_locks+0xc7/0x130 [ 74.181539] [] __alloc_skb+0xe6/0x5b0 [ 74.181546] [] ? __kmalloc_reserve.isra.5+0xc0/0xc0 [ 74.181553] [] ? ipv6_get_ifaddr+0x300/0x510 [ 74.181560] [] ? trace_hardirqs_on+0xd/0x10 [ 74.181580] [] ? __local_bh_enable_ip+0x6a/0xe0 [ 74.181589] [] ndisc_alloc_skb+0x144/0x330 [ 74.181596] [] ndisc_send_rs+0x2ff/0x670 [ 74.181602] [] ? __ipv6_get_lladdr+0x250/0x250 [ 74.181609] [] addrconf_rs_timer+0x27e/0x5a0 [ 74.181615] [] ? ipv6_get_lladdr+0x440/0x440 [ 74.181622] [] call_timer_fn+0x163/0x6e0 [ 74.181628] [] ? call_timer_fn+0xda/0x6e0 [ 74.181635] [] ? ipv6_get_lladdr+0x440/0x440 [ 74.181641] [] ? process_timeout+0x20/0x20 [ 74.181647] [] ? mark_held_locks+0xc7/0x130 [ 74.181654] [] ? _raw_spin_unlock_irq+0x27/0x50 [ 74.181660] [] ? ipv6_get_lladdr+0x440/0x440 [ 74.181667] [] ? trace_hardirqs_on_caller+0x266/0x590 [ 74.181673] [] ? ipv6_get_lladdr+0x440/0x440 [ 74.181679] [] expire_timers+0x234/0x580 [ 74.181686] [] ? collect_expired_timers+0x1d5/0x2b0 [ 74.181693] [] run_timer_softirq+0x208/0x5e0 [ 74.181699] [] ? expire_timers+0x580/0x580 [ 74.181706] [] ? check_preemption_disabled+0x3b/0x200 [ 74.181714] [] __do_softirq+0x20e/0x964 [ 74.181721] [] ? check_preemption_disabled+0x3b/0x200 [ 74.181728] [] irq_exit+0x11c/0x150 [ 74.181735] [] smp_apic_timer_interrupt+0x81/0xb0 [ 74.181743] [] apic_timer_interrupt+0x9d/0xb0 [ 74.181751] [ 74.181752] [] ? lock_acquire+0x173/0x3e0 [ 74.181759] [] ? wake_oom_reaper+0xf0/0xf0 [ 74.181766] [] find_lock_task_mm+0x46/0x270 [ 74.181773] [] ? wake_oom_reaper+0xf0/0xf0 [ 74.181780] [] lowmem_scan+0x34f/0xaf0 [ 74.181786] [] ? lowmem_scan+0x24e/0xaf0 [ 74.181793] [] ? check_preemption_disabled+0x3b/0x200 [ 74.181801] [] shrink_slab.part.8+0x3c6/0xa00 [ 74.181809] [] ? unregister_shrinker+0x230/0x230 [ 74.181816] [] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 74.181823] [] shrink_node+0x1ed/0x740 [ 74.181831] [] ? shrink_node_memcg.isra.19+0x12e0/0x12e0 [ 74.181840] [] ? __delayacct_freepages_start+0x41/0x80 [ 74.181847] [] try_to_free_pages+0x377/0xb80 [ 74.181855] [] ? shrink_node+0x740/0x740 [ 74.181863] [] __alloc_pages_nodemask+0x981/0x1bd0 [ 74.181870] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 74.181878] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 74.181884] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 74.181892] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 74.181900] [] __vmalloc_node_range+0x25b/0x600 [ 74.181907] [] ? xt_alloc_table_info+0xc9/0x100 [ 74.181913] [] vmalloc+0x5b/0x70 [ 74.181920] [] ? xt_alloc_table_info+0xc9/0x100 [ 74.181926] [] xt_alloc_table_info+0xc9/0x100 [ 74.181934] [] do_replace.isra.7+0xfd/0x470 [ 74.181941] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 74.181949] [] ? compat_do_replace.isra.6+0x4f0/0x4f0 [ 74.181955] [] ? selinux_capable+0x36/0x40 [ 74.181963] [] ? ns_capable_common+0x12a/0x150 [ 74.181970] [] do_arpt_set_ctl+0xff/0x140 [ 74.181977] [] nf_setsockopt+0x6d/0xc0 [ 74.181984] [] ip_setsockopt+0x88/0xa0 [ 74.181991] [] tcp_setsockopt+0x88/0xe0 [ 74.181998] [] sock_common_setsockopt+0x9a/0xe0 [ 74.182004] [] SyS_setsockopt+0x166/0x260 [ 74.182011] [] ? SyS_recv+0x40/0x40 [ 74.182018] [] ? SyS_clock_gettime+0x11e/0x1f0 [ 74.182025] [] ? SyS_clock_settime+0x220/0x220 [ 74.182031] [] ? do_syscall_64+0x48/0x550 [ 74.182038] [] ? SyS_recv+0x40/0x40 [ 74.182044] [] do_syscall_64+0x19f/0x550 [ 74.182051] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 74.182054] Mem-Info: [ 74.182069] active_anon:5149 inactive_anon:42 isolated_anon:0 [ 74.182069] active_file:13 inactive_file:22 isolated_file:0 [ 74.182069] unevictable:0 dirty:0 writeback:0 unstable:0 [ 74.182069] slab_reclaimable:4562 slab_unreclaimable:56712 [ 74.182069] mapped:4 shmem:48 pagetables:450 bounce:0 [ 74.182069] free:160 free_pcp:46 free_cma:0 [ 74.182082] Node 0 active_anon:20596kB inactive_anon:168kB active_file:52kB inactive_file:88kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:16kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes [ 74.182106] DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:120kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:16kB slab_unreclaimable:140kB kernel_stack:192kB pagetables:0kB bounce:0kB free_pcp:76kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 74.182131] Normal free:640kB min:5580kB low:9168kB high:12756kB active_anon:20576kB inactive_anon:168kB active_file:52kB inactive_file:88kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:18232kB slab_unreclaimable:226708kB kernel_stack:4032kB pagetables:1800kB bounce:0kB free_pcp:108kB local_pcp:4kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 74.182170] 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: 31*4kB (H) 17*8kB (H) 7*16kB (H) 5*32kB (H) 1*64kB (H) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 596kB 83 total pagecache pages [ 74.182210] 0 pages in swap cache [ 74.182213] Swap cache stats: add 0, delete 0, find 0/0 [ 74.182215] Free swap = 0kB [ 74.182217] Total swap = 0kB [ 74.182219] 1965979 pages RAM [ 74.182221] 0 pages HighMem/MovableOnly [ 74.182223] 313617 pages reserved [ 74.182229] SLUB: Unable to allocate memory on node -1, gfp=0x2080020(GFP_ATOMIC) [ 74.182234] cache: skbuff_head_cache, object size: 224, buffer size: 320, default order: 0, min order: 0 [ 74.182239] node 0: slabs: 714, objs: 8568, free: 0 [ 74.182243] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 74.207876] oom_reaper: reaped process 2260 (syz-executor3), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 74.241343] syz-executor3: vmalloc: allocation failure, allocated 698384384 of 4261421056 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 74.241350] CPU: 1 PID: 2260 Comm: syz-executor3 Not tainted 4.9.141+ #1 [ 74.241362] ffff8801a8b0f958 ffffffff81b42e79 1ffff10035161f2d dffffc0000000000 [ 74.241372] ffffffff82aa8ba0 0000000000000000 0000000000400000 ffff8801a8b0faa0 [ 74.241381] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 74.241383] Call Trace: [ 74.241393] [] dump_stack+0xc1/0x128 [ 74.241401] [] warn_alloc.cold.31+0x7f/0x9c [ 74.241409] [] ? zone_watermark_ok_safe+0x250/0x250 [ 74.241416] [] ? retint_kernel+0x2d/0x2d [ 74.241424] [] __vmalloc_node_range+0x3f8/0x600 [ 74.241431] [] ? xt_alloc_table_info+0xc9/0x100 [ 74.241438] [] vmalloc+0x5b/0x70 [ 74.241445] [] ? xt_alloc_table_info+0xc9/0x100 [ 74.241452] [] xt_alloc_table_info+0xc9/0x100 [ 74.241459] [] do_replace.isra.7+0xfd/0x470 [ 74.241467] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 74.241475] [] ? compat_do_replace.isra.6+0x4f0/0x4f0 [ 74.241482] [] ? selinux_capable+0x36/0x40 [ 74.241490] [] ? ns_capable_common+0x12a/0x150 [ 74.241498] [] do_arpt_set_ctl+0xff/0x140 [ 74.241505] [] nf_setsockopt+0x6d/0xc0 [ 74.241513] [] ip_setsockopt+0x88/0xa0 [ 74.241520] [] tcp_setsockopt+0x88/0xe0 [ 74.241527] [] sock_common_setsockopt+0x9a/0xe0 [ 74.241534] [] SyS_setsockopt+0x166/0x260 [ 74.241541] [] ? SyS_recv+0x40/0x40 [ 74.241549] [] ? SyS_clock_gettime+0x11e/0x1f0 [ 74.241556] [] ? SyS_clock_settime+0x220/0x220 [ 74.241563] [] ? do_syscall_64+0x48/0x550 [ 74.241581] [] ? SyS_recv+0x40/0x40 [ 74.241587] [] do_syscall_64+0x19f/0x550 [ 74.241594] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 74.241597] Mem-Info: [ 74.241613] active_anon:5149 inactive_anon:42 isolated_anon:0 [ 74.241613] active_file:13 inactive_file:22 isolated_file:0 [ 74.241613] unevictable:0 dirty:0 writeback:0 unstable:0 [ 74.241613] slab_reclaimable:4562 slab_unreclaimable:56712 [ 74.241613] mapped:4 shmem:48 pagetables:450 bounce:0 [ 74.241613] free:160 free_pcp:65 free_cma:0 [ 74.241626] Node 0 active_anon:20596kB inactive_anon:168kB active_file:52kB inactive_file:88kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:16kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes [ 74.241644] DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:20kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:16kB slab_unreclaimable:140kB kernel_stack:192kB pagetables:0kB bounce:0kB free_pcp:96kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 74.241670] Normal free:640kB min:5580kB low:9168kB high:12756kB active_anon:20576kB inactive_anon:168kB active_file:52kB inactive_file:88kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:18232kB slab_unreclaimable:226708kB kernel_stack:4032kB pagetables:1800kB bounce:0kB free_pcp:164kB local_pcp:4kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 74.241706] 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: 31*4kB (H) 17*8kB (H) 7*16kB (H) 5*32kB (H) 1*64kB (H) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 596kB 83 total pagecache pages [ 74.241747] 0 pages in swap cache [ 74.241751] Swap cache stats: add 0, delete 0, find 0/0 [ 74.241753] Free swap = 0kB [ 74.241755] Total swap = 0kB [ 74.241757] 1965979 pages RAM [ 74.241759] 0 pages HighMem/MovableOnly [ 74.241761] 313617 pages reserved [ 74.261309] syz-executor2: [ 74.261309] SLUB: Unable to allocate memory on node -1, gfp=0x2080020(GFP_ATOMIC) [ 74.261316] page allocation failure: order:0[ 74.261317] cache: skbuff_head_cache, object size: 224, buffer size: 320, default order: 0, min order: 0 [ 74.261320] , mode:0x2280020(GFP_ATOMIC|__GFP_NOTRACK) [ 74.261323] node 0: slabs: 714, objs: 8568, free: 0 [ 74.261328] CPU: 1 PID: 2265 Comm: syz-executor2 Not tainted 4.9.141+ #1 [ 74.261330] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 74.261339] ffff8801db7075c8 ffffffff81b42e79 1ffff1003b6e0ebb ffff8801cbdb97c0 [ 74.261344] ffffffff82a974e0 0000000000000000 [ 74.261346] syz-executor1: [ 74.261349] 0000000002280020page allocation failure: order:0 ffff8801db707710, mode:0x2280020(GFP_ATOMIC|__GFP_NOTRACK) ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 74.261379] Call Trace: [ 74.261389] [ 74.261389] [] dump_stack+0xc1/0x128 [ 74.261396] [] warn_alloc.cold.31+0x7f/0x9c [ 74.261403] [] ? zone_watermark_ok_safe+0x250/0x250 [ 74.261410] [] ? get_page_from_freelist+0x23e/0x1d80 [ 74.261417] [] __alloc_pages_nodemask+0x628/0x1bd0 [ 74.261424] [] ? __lock_acquire+0x654/0x4a10 [ 74.261430] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 74.261436] [] ? trace_hardirqs_on+0x10/0x10 [ 74.261443] [] ? trace_hardirqs_on_caller+0x266/0x590 [ 74.261450] [] ? _find_next_bit.part.0+0xe0/0x120 [ 74.261456] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 74.261462] [] new_slab+0x367/0x3d0 [ 74.261484] [] ___slab_alloc.constprop.33+0x2ed/0x470 [ 74.261490] [] ? __alloc_skb+0xe6/0x5b0 [ 74.261496] [] ? trace_hardirqs_on+0x10/0x10 [ 74.261503] [] ? __enqueue_entity+0x138/0x230 [ 74.261524] [] ? check_preemption_disabled+0x3b/0x200 [ 74.261531] [] ? __alloc_skb+0xe6/0x5b0 [ 74.261538] [] __slab_alloc.isra.25.constprop.32+0x50/0xa0 [ 74.261545] [] ? __alloc_skb+0xe6/0x5b0 [ 74.261552] [] kmem_cache_alloc+0x212/0x2b0 [ 74.261582] [] ? mark_held_locks+0xc7/0x130 [ 74.261604] [] __alloc_skb+0xe6/0x5b0 [ 74.261611] [] ? __kmalloc_reserve.isra.5+0xc0/0xc0 [ 74.261617] [] ? ipv6_get_ifaddr+0x300/0x510 [ 74.261623] [] ? trace_hardirqs_on+0xd/0x10 [ 74.261630] [] ? __local_bh_enable_ip+0x6a/0xe0 [ 74.261637] [] ndisc_alloc_skb+0x144/0x330 [ 74.261659] [] ndisc_send_rs+0x2ff/0x670 [ 74.261665] [] ? __ipv6_get_lladdr+0x250/0x250 [ 74.261672] [] addrconf_rs_timer+0x27e/0x5a0 [ 74.261678] [] ? ipv6_get_lladdr+0x440/0x440 [ 74.261685] [] call_timer_fn+0x163/0x6e0 [ 74.261691] [] ? call_timer_fn+0xda/0x6e0 [ 74.261697] [] ? ipv6_get_lladdr+0x440/0x440 [ 74.261703] [] ? process_timeout+0x20/0x20 [ 74.261724] [] ? mark_held_locks+0xc7/0x130 [ 74.261730] [] ? _raw_spin_unlock_irq+0x27/0x50 [ 74.261736] [] ? ipv6_get_lladdr+0x440/0x440 [ 74.261742] [] ? trace_hardirqs_on_caller+0x266/0x590 [ 74.261748] [] ? ipv6_get_lladdr+0x440/0x440 [ 74.261754] [] expire_timers+0x234/0x580 [ 74.261760] [] ? collect_expired_timers+0x1d5/0x2b0 [ 74.261781] [] run_timer_softirq+0x208/0x5e0 [ 74.261787] [] ? expire_timers+0x580/0x580 [ 74.261812] [] ? check_preemption_disabled+0x3b/0x200 [ 74.261834] [] __do_softirq+0x20e/0x964 [ 74.261840] [] ? check_preemption_disabled+0x3b/0x200 [ 74.261846] [] irq_exit+0x11c/0x150 [ 74.261853] [] smp_apic_timer_interrupt+0x81/0xb0 [ 74.261859] [] apic_timer_interrupt+0x9d/0xb0 [ 74.261868] [ 74.261868] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 74.261874] [] find_lock_task_mm+0x4b/0x270 [ 74.261880] [] ? wake_oom_reaper+0xf0/0xf0 [ 74.261886] [] lowmem_scan+0x34f/0xaf0 [ 74.261892] [] ? lowmem_scan+0x24e/0xaf0 [ 74.261913] [] ? check_preemption_disabled+0x3b/0x200 [ 74.261920] [] shrink_slab.part.8+0x3c6/0xa00 [ 74.261943] [] ? unregister_shrinker+0x230/0x230 [ 74.261964] [] shrink_node+0x1ed/0x740 [ 74.261972] [] ? shrink_node_memcg.isra.19+0x12e0/0x12e0 [ 74.261979] [] ? __delayacct_freepages_start+0x41/0x80 [ 74.262001] [] try_to_free_pages+0x377/0xb80 [ 74.262008] [] ? shrink_node+0x740/0x740 [ 74.262016] [] __alloc_pages_nodemask+0x981/0x1bd0 [ 74.262022] [] ? _raw_spin_unlock+0x2c/0x50 [ 74.262030] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 74.262038] [] ? alloc_vmap_area.isra.8+0x8d0/0x8d0 [ 74.262044] [] ? lock_is_held+0xff/0x140 [ 74.262051] [] ? __vmalloc_node_range+0x363/0x600 [ 74.262058] [] __vmalloc_node_range+0x25b/0x600 [ 74.262064] [] ? xt_alloc_table_info+0xc9/0x100 [ 74.262071] [] vmalloc+0x5b/0x70 [ 74.262077] [] ? xt_alloc_table_info+0xc9/0x100 [ 74.262083] [] xt_alloc_table_info+0xc9/0x100 [ 74.262095] [] do_replace.isra.7+0xfd/0x470 [ 74.262102] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 74.262110] [] ? compat_do_replace.isra.6+0x4f0/0x4f0 [ 74.262116] [] ? selinux_capable+0x36/0x40 [ 74.262123] [] ? ns_capable_common+0x12a/0x150 [ 74.262131] [] do_arpt_set_ctl+0xff/0x140 [ 74.262137] [] nf_setsockopt+0x6d/0xc0 [ 74.262144] [] ip_setsockopt+0x88/0xa0 [ 74.262151] [] tcp_setsockopt+0x88/0xe0 [ 74.262158] [] sock_common_setsockopt+0x9a/0xe0 [ 74.262164] [] SyS_setsockopt+0x166/0x260 [ 74.262170] [] ? SyS_recv+0x40/0x40 [ 74.262177] [] ? SyS_clock_gettime+0x11e/0x1f0 [ 74.262199] [] ? SyS_clock_settime+0x220/0x220 [ 74.262205] [] ? do_syscall_64+0x48/0x550 [ 74.262211] [] ? SyS_recv+0x40/0x40 [ 74.262217] [] do_syscall_64+0x19f/0x550 [ 74.262238] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 74.262240] Mem-Info: [ 74.262246] CPU: 0 PID: 2099 Comm: syz-executor1 Not tainted 4.9.141+ #1 [ 74.262273] active_anon:5149 inactive_anon:42 isolated_anon:0 [ 74.262273] active_file:13 inactive_file:22 isolated_file:0 [ 74.262273] unevictable:0 dirty:0 writeback:0 unstable:0 [ 74.262273] slab_reclaimable:4562 slab_unreclaimable:56712 [ 74.262273] mapped:4 shmem:48 pagetables:450 bounce:0 [ 74.262273] free:160 free_pcp:65 free_cma:0 [ 74.262285] ffff8801db6075c8 [ 74.262286] Node 0 active_anon:20596kB inactive_anon:168kB active_file:52kB inactive_file:88kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:16kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes [ 74.262302] ffffffff81b42e79DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:20kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:16kB slab_unreclaimable:140kB kernel_stack:192kB pagetables:0kB bounce:0kB free_pcp:96kB local_pcp:0kB free_cma:0kB 1ffff1003b6c0ebblowmem_reserve[]: [ 74.262308] ffff8801ccd30000 0 3505 ffffffff82a974e0 [ 74.262315] 3505 0000000000000000 0000000002280020Normal free:640kB min:5580kB low:9168kB high:12756kB active_anon:20576kB inactive_anon:168kB active_file:52kB inactive_file:88kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:18232kB slab_unreclaimable:226708kB kernel_stack:4032kB pagetables:1800kB bounce:0kB free_pcp:164kB local_pcp:4kB free_cma:0kB ffff8801db607710lowmem_reserve[]: [ 74.262339] 0 ffffffff814fc7c8 [ 74.262342] 0 0000000041b58ab3 0 ffffffff82e37a10 ffffffff81427db0DMA32: Call Trace: [ 74.262354] 0*4kB [ 74.262362] 0*8kB [] dump_stack+0xc1/0x128 [ 74.262370] 0*16kB [] warn_alloc.cold.31+0x7f/0x9c [ 74.262379] 0*32kB [] ? zone_watermark_ok_safe+0x250/0x250 [ 74.262387] 0*64kB [] ? get_page_from_freelist+0x23e/0x1d80 [ 74.262395] 0*128kB [] __alloc_pages_nodemask+0x628/0x1bd0 [ 74.262405] 0*256kB [] ? kvm_sched_clock_read+0x9/0x20 [ 74.262414] 0*512kB [] ? sched_clock+0x9/0x10 [ 74.262422] 0*1024kB [] ? down_trylock+0x50/0x70 [ 74.262430] 0*2048kB [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 74.262439] 0*4096kB [] ? vprintk_emit+0x272/0x790 [ 74.262456] = 0kB [] ? trace_hardirqs_on+0x10/0x10 [ 74.262468] Normal: [] new_slab+0x367/0x3d0 [ 74.262477] 31*4kB [] ___slab_alloc.constprop.33+0x2ed/0x470 [ 74.262485] (H) [] ? __alloc_skb+0xe6/0x5b0 [ 74.262492] 17*8kB [] ? trace_hardirqs_on+0x10/0x10 [ 74.262500] (H) [] ? debug_object_activate+0x32d/0x4e0 [ 74.262508] 7*16kB [] ? check_preemption_disabled+0x3b/0x200 [ 74.262516] (H) [] ? __alloc_skb+0xe6/0x5b0 [ 74.262525] 5*32kB [] __slab_alloc.isra.25.constprop.32+0x50/0xa0 [ 74.262532] (H) [] ? __alloc_skb+0xe6/0x5b0 [ 74.262541] 1*64kB [] kmem_cache_alloc+0x212/0x2b0 [ 74.262547] (H) [] ? mark_held_locks+0xc7/0x130 [ 74.262555] 0*128kB [] __alloc_skb+0xe6/0x5b0 [ 74.262564] 0*256kB [] ? __kmalloc_reserve.isra.5+0xc0/0xc0 [ 74.262580] 0*512kB [] ? ipv6_get_ifaddr+0x300/0x510 [ 74.262596] 0*1024kB [] ? trace_hardirqs_on+0xd/0x10 [ 74.262604] 0*2048kB [] ? __local_bh_enable_ip+0x6a/0xe0 [ 74.262612] 0*4096kB [] ndisc_alloc_skb+0x144/0x330 [ 74.262626] = 596kB [] ndisc_send_rs+0x2ff/0x670 [ 74.262633] 83 total pagecache pages [ 74.262639] [] ? __ipv6_get_lladdr+0x250/0x250 [ 74.262640] 0 pages in swap cache [ 74.262646] [] addrconf_rs_timer+0x27e/0x5a0 [ 74.262649] Swap cache stats: add 0, delete 0, find 0/0 [ 74.262654] [] ? ipv6_get_lladdr+0x440/0x440 [ 74.262656] Free swap = 0kB [ 74.262661] [] call_timer_fn+0x163/0x6e0 [ 74.262662] Total swap = 0kB [ 74.262668] [] ? call_timer_fn+0xda/0x6e0 [ 74.262669] 1965979 pages RAM [ 74.262674] [] ? ipv6_get_lladdr+0x440/0x440 [ 74.262676] 0 pages HighMem/MovableOnly [ 74.262681] [] ? process_timeout+0x20/0x20 [ 74.262682] 313617 pages reserved [ 74.262688] [] ? mark_held_locks+0xc7/0x130 [ 74.262691] SLUB: Unable to allocate memory on node -1, gfp=0x2080020(GFP_ATOMIC) [ 74.262697] [] ? _raw_spin_unlock_irq+0x27/0x50 [ 74.262702] cache: skbuff_head_cache, object size: 224, buffer size: 320, default order: 0, min order: 0 [ 74.262707] [] ? ipv6_get_lladdr+0x440/0x440 [ 74.262710] node 0: slabs: 714, objs: 8568, free: 0 [ 74.262716] [] ? trace_hardirqs_on_caller+0x266/0x590 [ 74.262718] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 74.262723] [] ? ipv6_get_lladdr+0x440/0x440 [ 74.262728] [] expire_timers+0x234/0x580 [ 74.262734] [] ? collect_expired_timers+0x1d5/0x2b0 [ 74.262740] [] run_timer_softirq+0x208/0x5e0 [ 74.262745] [] ? expire_timers+0x580/0x580 [ 74.262752] [] ? check_preemption_disabled+0x3b/0x200 [ 74.262758] [] __do_softirq+0x20e/0x964 [ 74.262765] [] ? check_preemption_disabled+0x3b/0x200 [ 74.262770] [] irq_exit+0x11c/0x150 [ 74.262777] [] smp_apic_timer_interrupt+0x81/0xb0 [ 74.262783] [] apic_timer_interrupt+0x9d/0xb0 [ 74.262791] [ 74.262791] [] ? lock_release+0x557/0xc20 [ 74.262798] [] ? find_lock_task_mm+0xf1/0x270 [ 74.262804] [] ? find_lock_task_mm+0xf1/0x270 [ 74.262811] [] find_lock_task_mm+0x15b/0x270 [ 74.262817] [