[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [ 11.570148] random: crng init done Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.156' (ECDSA) to the list of known hosts. 2019/02/27 09:39:19 parsed 1 programs 2019/02/27 09:39:21 executed programs: 0 syzkaller login: [ 46.233695] audit: type=1400 audit(1551260361.923:5): avc: denied { sys_admin } for pid=2062 comm="syz-executor.2" 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 [ 46.263823] audit: type=1400 audit(1551260361.953:6): avc: denied { net_admin } for pid=2070 comm="syz-executor.3" 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 [ 46.534588] audit: type=1400 audit(1551260362.223:7): avc: denied { sys_chroot } for pid=2068 comm="syz-executor.4" 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 [ 46.535955] audit: type=1400 audit(1551260362.223:8): avc: denied { associate } for pid=2071 comm="syz-executor.1" name="syz1" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 46.712647] audit: type=1400 audit(1551260362.393:9): avc: denied { dac_override } for pid=2212 comm="syz-executor.1" capability=1 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 [ 48.206957] lowmemorykiller: Killing 'syz-executor.3' (2230) (tgid 2227), adj 1000, [ 48.206957] to free 984kB on behalf of 'syz-executor.1' (2241) because [ 48.206957] cache 52876kB is below limit 65536kB for oom_score_adj 12 [ 48.206957] Free memory is -12828kB above reserved [ 48.208510] lowmemorykiller: Killing 'syz-executor.3' (2230) (tgid 2227), adj 1000, [ 48.208510] to free 984kB on behalf of 'kswapd0' (33) because [ 48.208510] cache 50476kB is below limit 65536kB for oom_score_adj 12 [ 48.208510] Free memory is -12264kB above reserved [ 48.509047] syz-executor.4 invoked oom-killer: gfp_mask=0x24201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=0, order=0, oom_score_adj=0 [ 48.728006] CPU: 1 PID: 2068 Comm: syz-executor.4 Not tainted 4.9.141+ #1 [ 48.734979] ffff8801cef5f6f8 ffffffff81b42e79 ffff8801cef5fab8 ffffffff833e92b0 [ 48.743041] 0000000000000000 ffff8801cef5fad0 0000000000000000 ffff8801cef5f778 [ 48.751106] ffffffff814fb526 0000000000000000 0000000000000000 ffffffff82816fa5 [ 48.759176] Call Trace: [ 48.761778] [] dump_stack+0xc1/0x128 [ 48.767144] [] dump_header.isra.4+0x142/0x747 [ 48.773284] [] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 48.780235] [] ? ___ratelimit+0x53/0x401 [ 48.785944] [] oom_kill_process.cold.10+0xd/0xa6e [ 48.792433] [] ? has_capability_noaudit+0x24/0x30 [ 48.798919] [] ? check_preemption_disabled+0x3b/0x200 [ 48.805758] [] ? out_of_memory+0x6d4/0xe90 [ 48.811645] [] out_of_memory+0x292/0xe90 [ 48.817334] [] ? out_of_memory+0x410/0xe90 [ 48.823257] [] ? oom_killer_disable+0x200/0x200 [ 48.829553] [] ? trace_hardirqs_on+0xd/0x10 [ 48.835520] [] ? __alloc_pages_nodemask+0x1173/0x1bd0 [ 48.842341] [] __alloc_pages_nodemask+0x18ee/0x1bd0 [ 48.849016] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 48.855753] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 48.862401] [] ? radix_tree_lookup_slot+0x85/0xc0 [ 48.868883] [] ? find_get_entry+0x11a/0x570 [ 48.874839] [] ? find_get_entry+0x141/0x570 [ 48.880796] [] ? page_cache_prev_hole+0x80/0x80 [ 48.887117] [] ? pagecache_get_page+0x131/0x710 [ 48.893443] [] filemap_fault+0xaf1/0x1110 [ 48.899240] [] ext4_filemap_fault+0x71/0xa0 [ 48.905194] [] __do_fault+0x223/0x500 [ 48.910641] [] ? do_page_mkwrite+0x3e0/0x3e0 [ 48.916858] [] ? generic_file_readonly_mmap+0x190/0x190 [ 48.923850] [] handle_mm_fault+0x1326/0x2350 [ 48.929989] [] ? vm_insert_page+0x6f0/0x6f0 [ 48.935944] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 48.942696] [] __do_page_fault+0x403/0xa60 [ 48.948561] [] ? bad_area_access_error+0x3a0/0x3a0 [ 48.955145] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.961984] [] do_page_fault+0x27/0x30 [ 48.967506] [] page_fault+0x25/0x30 [ 48.977559] Mem-Info: [ 48.980017] active_anon:5364 inactive_anon:42 isolated_anon:0 [ 48.980017] active_file:7 inactive_file:25 isolated_file:0 [ 48.980017] unevictable:0 dirty:0 writeback:0 unstable:0 [ 48.980017] slab_reclaimable:4543 slab_unreclaimable:57375 [ 48.980017] mapped:7 shmem:48 pagetables:446 bounce:0 [ 48.980017] free:6026 free_pcp:60 free_cma:0 [ 49.019263] Node 0 active_anon:21456kB inactive_anon:168kB active_file:28kB inactive_file:100kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:28kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:42 all_unreclaimable? no [ 49.050651] DMA32 free:18612kB min:4696kB low:7712kB high:10728kB active_anon:44kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:484kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB [ 49.088815] lowmem_reserve[]: 0 3505 3505 [ 49.093659] Normal free:5492kB min:5580kB low:9168kB high:12756kB active_anon:21412kB inactive_anon:160kB active_file:28kB inactive_file:100kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:18172kB slab_unreclaimable:229016kB kernel_stack:4416kB pagetables:1784kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB [ 49.132802] lowmem_reserve[]: 0 0 0 [ 49.136993] DMA32: 5*4kB (M) 6*8kB (UM) 3*16kB (M) 4*32kB (UM) 3*64kB (M) 4*128kB (UM) 5*256kB (UM) 2*512kB (M) 1*1024kB (M) 1*2048kB (M) 3*4096kB (M) = 18612kB [ 49.155401] Normal: 287*4kB (UMEH) 149*8kB (UMEH) 86*16kB (UMH) 40*32kB (MH) 8*64kB (UMH) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5508kB 82 total pagecache pages [ 49.180985] 0 pages in swap cache [ 49.311438] Swap cache stats: add 0, delete 0, find 0/0 [ 49.330037] Free swap = 0kB [ 49.369996] Total swap = 0kB [ 49.373114] lowmemorykiller: Killing 'syz-executor.3' (2230) (tgid 2227), adj 1000, [ 49.373114] to free 148kB on behalf of 'syz-executor.2' (2236) because [ 49.373114] cache 136kB is below limit 6144kB for oom_score_adj 0 [ 49.373114] Free memory is -13400kB above reserved [ 49.373285] lowmemorykiller: Killing 'syz-executor.3' (2230) (tgid 2227), adj 1000, [ 49.373285] to free 148kB on behalf of 'syz-executor.0' (2073) because [ 49.373285] cache 136kB is below limit 6144kB for oom_score_adj 0 [ 49.373285] Free memory is -13400kB above reserved [ 49.892817] 1965979 pages RAM [ 49.895948] 0 pages HighMem/MovableOnly [ 49.899910] 313617 pages reserved [ 49.989889] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 50.082836] [ 470] 0 470 5384 183 15 3 0 -1000 udevd [ 50.091688] [ 585] 0 585 5383 181 14 3 0 -1000 udevd [ 50.253445] [ 586] 0 586 5383 181 14 3 0 -1000 udevd [ 50.262257] [ 1754] 0 1754 2492 574 9 3 0 0 dhclient [ 50.382941] lowmemorykiller: Killing 'syz-executor.3' (2230) (tgid 2227), adj 1000, [ 50.382941] to free 148kB on behalf of 'syz-executor.3' (2230) because [ 50.382941] cache 136kB is below limit 6144kB for oom_score_adj 0 [ 50.382941] Free memory is -13408kB above reserved [ 50.383436] lowmemorykiller: Killing 'syz-executor.3' (2230) (tgid 2227), adj 1000, [ 50.383436] to free 148kB on behalf of 'syz-executor.1' (2241) because [ 50.383436] cache 136kB is below limit 6144kB for oom_score_adj 0 [ 50.383436] Free memory is -13408kB above reserved [ 50.459814] [ 1885] 0 1885 14264 108 23 3 0 0 rsyslogd ** 95 printk messages dropped ** [ 50.480880] DMA32: 5*4kB (M) 6*8kB (UM) 4*16kB (UM) 3*32kB (M) 3*64kB (M) 4*128kB (UM) 5*256kB (UM) 2*512kB (M) 1*1024kB (M) 1*2048kB (M) 3*4096kB (M) = 18596kB ** 105 printk messages dropped ** [ 50.560113] DMA32 free:5204kB min:4696kB low:7712kB high:10728kB active_anon:44kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:500kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:216kB local_pcp:120kB free_cma:0kB ** 17 printk messages dropped ** [ 50.560275] [ 1754] 0 1754 2492 574 9 3 0 0 dhclient ** 3 printk messages dropped ** [ 50.560313] [ 1968] 0 1968 12489 152 28 4 0 -1000 sshd ** 7 printk messages dropped ** [ 50.560389] [ 2046] 0 2046 3648 44 13 3 0 0 getty ** 106 printk messages dropped ** [ 50.630533] [ 2043] 0 2043 3648 43 13 3 0 0 getty [ 50.630540] [ 2044] 0 2044 3648 43 12 3 0 0 getty [ 50.630547] [ 2045] 0 2045 3648 43 13 3 0 0 getty [ 50.630554] [ 2046] 0 2046 3648 44 13 3 0 0 getty [ 50.630561] [ 2047] 0 2047 17820 197 39 3 0 0 sshd [ 50.630569] [ 2049] 0 2049 33479 1797 28 5 0 0 syz-execprog [ 50.630576] [ 2062] 0 2062 9375 15 5 2 0 0 syz-executor.2 [ 50.630583] [ 2063] 0 2063 9375 16 5 2 0 0 syz-executor.4 [ 50.630590] [ 2065] 0 2065 9375 17 5 2 0 0 syz-executor.3 [ 50.630597] [ 2066] 0 2066 9375 15 5 2 0 0 syz-executor.1 [ 50.630604] [ 2067] 0 2067 9375 15 5 2 0 0 syz-executor.0 [ 50.630612] [ 2068] 0 2068 9375 17 6 3 0 0 syz-executor.4 [ 50.630619] [ 2069] 0 2069 9375 16 6 3 0 0 syz-executor.2 [ 50.630626] [ 2070] 0 2070 9375 18 6 3 0 0 syz-executor.3 [ 50.630633] [ 2071] 0 2071 9375 16 6 3 0 0 syz-executor.1 [ 50.630640] [ 2072] 0 2072 9375 16 5 2 0 0 syz-executor.5 [ 50.630648] [ 2073] 0 2073 9375 16 6 3 0 0 syz-executor.0 [ 50.630655] [ 2074] 0 2074 9375 17 6 3 0 0 syz-executor.5 [ 50.630663] [ 2217] 0 2212 9573 35 9 4 0 1000 syz-executor.1 [ 50.630671] [ 2222] 0 2216 9573 0 9 4 0 1000 syz-executor.5 [ 50.630678] [ 2218] 0 2218 9573 35 9 4 0 1000 syz-executor.1 [ 50.630686] [ 2225] 0 2225 9573 0 9 4 0 1000 syz-executor.5 [ 50.630694] [ 2230] 0 2227 9573 0 9 4 0 1000 syz-executor.3 [ 50.630705] [ 2233] 0 2231 9540 33 9 4 0 1000 syz-executor.2 [ 50.630716] [ 2236] 0 2236 9540 33 9 4 0 1000 syz-executor.2 [ 50.630727] [ 2240] 0 2238 9573 0 10 4 0 1000 syz-executor.0 [ 50.630739] [ 2258] 0 2254 9540 35 9 4 0 1000 syz-executor.4 [ 50.630749] [ 2259] 0 2259 9540 35 9 4 0 1000 syz-executor.4 [ 50.630759] [ 2264] 0 2264 9573 35 9 4 0 1000 syz-executor.1 [ 50.630771] [ 2276] 0 2276 9540 33 9 4 0 1000 syz-executor.2 [ 50.630783] [ 2289] 0 2289 9540 35 9 4 0 1000 syz-executor.4 [ 50.630788] Out of memory: Kill process 2212 (syz-executor.1) score 999 or sacrifice child [ 50.630820] Killed process 2218 (syz-executor.1) total-vm:38292kB, anon-rss:140kB, file-rss:0kB, shmem-rss:0kB [ 50.674027] syz-executor.5: vmalloc: allocation failure, allocated 352038912 of 4119379968 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 50.674035] CPU: 1 PID: 2225 Comm: syz-executor.5 Not tainted 4.9.141+ #1 [ 50.674049] ffff8801cabbf9c8 ffffffff81b42e79 1ffff10039577f3b dffffc0000000000 [ 50.674060] ffffffff82aa8ba0 0000000000000000 0000000000400000 ffff8801cabbfb10 [ 50.674070] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 50.674072] Call Trace: [ 50.674088] [] dump_stack+0xc1/0x128 [ 50.674099] [] warn_alloc.cold.31+0x7f/0x9c [ 50.674110] [] ? zone_watermark_ok_safe+0x250/0x250 [ 50.674121] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.674131] [] ? retint_kernel+0x2d/0x2d [ 50.674140] [] __vmalloc_node_range+0x3f8/0x600 [ 50.674149] [] ? xt_alloc_table_info+0xc9/0x100 [ 50.674156] [] vmalloc+0x5b/0x70 [ 50.674163] [] ? xt_alloc_table_info+0xc9/0x100 [ 50.674170] [] xt_alloc_table_info+0xc9/0x100 [ 50.674180] [] do_ip6t_set_ctl+0x235/0x470 [ 50.674187] [] ? compat_do_ip6t_set_ctl+0x140/0x140 [ 50.674198] [] ? mutex_unlock+0x9/0x10 [ 50.674209] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 50.674215] [] nf_setsockopt+0x6d/0xc0 [ 50.674227] [] ipv6_setsockopt+0xc8/0x130 [ 50.674234] [] udpv6_setsockopt+0x4a/0x90 [ 50.674243] [] sock_common_setsockopt+0x9a/0xe0 [ 50.674251] [] SyS_setsockopt+0x166/0x260 [ 50.674257] [] ? SyS_recv+0x40/0x40 [ 50.674267] [] ? SyS_clock_gettime+0x11e/0x1f0 [ 50.674274] [] ? SyS_clock_settime+0x220/0x220 [ 50.674281] [] ? do_syscall_64+0x48/0x550 [ 50.674287] [] ? SyS_recv+0x40/0x40 [ 50.674294] [] do_syscall_64+0x19f/0x550 [ 50.674302] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 50.674305] Mem-Info: [ 50.674322] active_anon:5289 inactive_anon:42 isolated_anon:0 [ 50.674322] active_file:7 inactive_file:27 isolated_file:0 [ 50.674322] unevictable:0 dirty:0 writeback:0 unstable:0 [ 50.674322] slab_reclaimable:4543 slab_unreclaimable:57382 [ 50.674322] mapped:7 shmem:48 pagetables:446 bounce:0 [ 50.674322] free:0 free_pcp:137 free_cma:0 [ 50.674335] Node 0 active_anon:21156kB inactive_anon:168kB active_file:28kB inactive_file:108kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:28kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes [ 50.674352] DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:44kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:500kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 50.674378] Normal free:0kB min:5580kB low:9168kB high:12756kB active_anon:21112kB inactive_anon:160kB active_file:28kB inactive_file:108kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:18172kB slab_unreclaimable:229028kB kernel_stack:4320kB pagetables:1784kB bounce:0kB free_pcp:428kB local_pcp:52kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 50.674413] DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 82 total pagecache pages [ 50.674454] 0 pages in swap cache [ 50.674457] Swap cache stats: add 0, delete 0, find 0/0 [ 50.674459] Free swap = 0kB [ 50.674461] Total swap = 0kB [ 50.674463] 1965979 pages RAM [ 50.674465] 0 pages HighMem/MovableOnly [ 50.674467] 313617 pages reserved [ 50.692825] syz-executor.2: page allocation failure: order:0, mode:0x2280020(GFP_ATOMIC|__GFP_NOTRACK) [ 50.692833] CPU: 0 PID: 2236 Comm: syz-executor.2 Not tainted 4.9.141+ #1 [ 50.692845] ffff8801db6075c8 ffffffff81b42e79 1ffff1003b6c0ebb ffff8801cab22f80 [ 50.692852] ffffffff82a974e0 0000000000000000 0000000002280020 ffff8801db607710 [ 50.692860] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 50.692861] Call Trace: [ 50.692878] [ 50.692878] [] dump_stack+0xc1/0x128 [ 50.692888] [] warn_alloc.cold.31+0x7f/0x9c [ 50.692898] [] ? zone_watermark_ok_safe+0x250/0x250 [ 50.692906] [] ? trace_hardirqs_on+0xd/0x10 [ 50.692913] [] ? get_page_from_freelist+0x23e/0x1d80 [ 50.692921] [] __alloc_pages_nodemask+0x628/0x1bd0 [ 50.692927] [] ? mark_held_locks+0xc7/0x130 [ 50.692934] [] ? trace_hardirqs_on+0x10/0x10 [ 50.692941] [] ? __lock_acquire+0x654/0x4a10 [ 50.692948] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 50.692956] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 50.692966] [] ? cpuacct_charge+0x1db/0x360 [ 50.692975] [] new_slab+0x367/0x3d0 [ 50.692983] [] ___slab_alloc.constprop.33+0x2ed/0x470 [ 50.692994] [] ? __alloc_skb+0xe6/0x5b0 [ 50.693000] [] ? trace_hardirqs_on+0x10/0x10 [ 50.693010] [] ? check_preemption_disabled+0x3b/0x200 [ 50.693018] [] ? __alloc_skb+0xe6/0x5b0 [ 50.693026] [] __slab_alloc.isra.25.constprop.32+0x50/0xa0 [ 50.693033] [] ? __alloc_skb+0xe6/0x5b0 [ 50.693040] [] kmem_cache_alloc+0x212/0x2b0 [ 50.693047] [] ? mark_held_locks+0xc7/0x130 [ 50.693054] [] __alloc_skb+0xe6/0x5b0 [ 50.693062] [] ? __kmalloc_reserve.isra.5+0xc0/0xc0 [ 50.693070] [] ? ipv6_get_ifaddr+0x300/0x510 [ 50.693076] [] ? trace_hardirqs_on+0xd/0x10 [ 50.693085] [] ? __local_bh_enable_ip+0x6a/0xe0 [ 50.693095] [] ndisc_alloc_skb+0x144/0x330 [ 50.693103] [] ndisc_send_rs+0x2ff/0x670 [ 50.693109] [] ? __ipv6_get_lladdr+0x250/0x250 [ 50.693116] [] addrconf_rs_timer+0x27e/0x5a0 [ 50.693122] [] ? ipv6_get_lladdr+0x440/0x440 [ 50.693131] [] call_timer_fn+0x163/0x6e0 [ 50.693137] [] ? call_timer_fn+0xda/0x6e0 [ 50.693143] [] ? ipv6_get_lladdr+0x440/0x440 [ 50.693150] [] ? process_timeout+0x20/0x20 [ 50.693156] [] ? mark_held_locks+0xc7/0x130 [ 50.693165] [] ? _raw_spin_unlock_irq+0x27/0x50 [ 50.693171] [] ? ipv6_get_lladdr+0x440/0x440 [ 50.693178] [] ? trace_hardirqs_on_caller+0x266/0x590 [ 50.693185] [] ? ipv6_get_lladdr+0x440/0x440 [ 50.693191] [] expire_timers+0x234/0x580 [ 50.693198] [] ? collect_expired_timers+0x1d5/0x2b0 [ 50.693204] [] run_timer_softirq+0x208/0x5e0 [ 50.693211] [] ? expire_timers+0x580/0x580 [ 50.693219] [] ? check_preemption_disabled+0x3b/0x200 [ 50.693227] [] __do_softirq+0x20e/0x964 [ 50.693235] [] ? check_preemption_disabled+0x3b/0x200 [ 50.693241] [] irq_exit+0x11c/0x150 [ 50.693249] [] smp_apic_timer_interrupt+0x81/0xb0 [ 50.693256] [] apic_timer_interrupt+0x9d/0xb0 [ 50.693265] [ 50.693266] [] ? lock_acquire+0x173/0x3e0 [ 50.693273] [] ? wake_oom_reaper+0xf0/0xf0 [ 50.693280] [] find_lock_task_mm+0x46/0x270 [ 50.693287] [] ? wake_oom_reaper+0xf0/0xf0 [ 50.693294] [] lowmem_scan+0x34f/0xaf0 [ 50.693300] [] ? lowmem_scan+0x24e/0xaf0 [ 50.693308] [] ? check_preemption_disabled+0x3b/0x200 [ 50.693317] [] shrink_slab.part.8+0x3c6/0xa00 [ 50.693325] [] ? unregister_shrinker+0x230/0x230 [ 50.693333] [] shrink_node+0x1ed/0x740 [ 50.693341] [] ? shrink_node_memcg.isra.19+0x12e0/0x12e0 [ 50.693350] [] ? __delayacct_freepages_start+0x41/0x80 [ 50.693358] [] try_to_free_pages+0x377/0xb80 [ 50.693365] [] ? shrink_node+0x740/0x740 [ 50.693373] [] __alloc_pages_nodemask+0x981/0x1bd0 [ 50.693380] [] ? _raw_spin_unlock_irq+0x38/0x50 [ 50.693388] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 50.693399] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.693406] [] ? retint_kernel+0x2d/0x2d [ 50.693415] [] __vmalloc_node_range+0x25b/0x600 [ 50.693431] [] ? xt_alloc_table_info+0xc9/0x100 [ 50.693438] [] vmalloc+0x5b/0x70 [ 50.693450] [] ? xt_alloc_table_info+0xc9/0x100 [ 50.693457] [] xt_alloc_table_info+0xc9/0x100 [ 50.693466] [] do_ip6t_set_ctl+0x235/0x470 [ 50.693474] [] ? compat_do_ip6t_set_ctl+0x140/0x140 [ 50.693484] [] ? mutex_unlock+0x9/0x10 [ 50.693494] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 50.693501] [] nf_setsockopt+0x6d/0xc0 [ 50.693508] [] ipv6_setsockopt+0xc8/0x130 [ 50.693515] [] udpv6_setsockopt+0x4a/0x90 [ 50.693523] [] sock_common_setsockopt+0x9a/0xe0 [ 50.693530] [] SyS_setsockopt+0x166/0x260 [ 50.693536] [] ? SyS_recv+0x40/0x40 [ 50.693545] [] ? SyS_clock_gettime+0x11e/0x1f0 [ 50.693552] [] ? SyS_clock_settime+0x220/0x220 [ 50.693558] [] ? do_syscall_64+0x48/0x550 [ 50.693565] [] ? SyS_recv+0x40/0x40 [ 50.693571] [] do_syscall_64+0x19f/0x550 [ 50.693579] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 50.693582] Mem-Info: [ 50.693598] active_anon:5289 inactive_anon:42 isolated_anon:0 [ 50.693598] active_file:7 inactive_file:27 isolated_file:0 [ 50.693598] unevictable:0 dirty:0 writeback:0 unstable:0 [ 50.693598] slab_reclaimable:4543 slab_unreclaimable:57382 [ 50.693598] mapped:7 shmem:48 pagetables:446 bounce:0 [ 50.693598] free:0 free_pcp:137 free_cma:0 [ 50.693610] Node 0 active_anon:21156kB inactive_anon:168kB active_file:28kB inactive_file:108kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:28kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes [ 50.693627] DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:44kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:500kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 50.693652] Normal free:0kB min:5580kB low:9168kB high:12756kB active_anon:21112kB inactive_anon:160kB active_file:28kB inactive_file:108kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:18172kB slab_unreclaimable:229028kB kernel_stack:4320kB pagetables:1784kB bounce:0kB free_pcp:428kB local_pcp:376kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 50.693686] DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 82 total pagecache pages [ 50.693717] 0 pages in swap cache [ 50.693720] Swap cache stats: add 0, delete 0, find 0/0 [ 50.693722] Free swap = 0kB [ 50.693724] Total swap = 0kB [ 50.693726] 1965979 pages RAM [ 50.693728] 0 pages HighMem/MovableOnly [ 50.693730] 313617 pages reserved [ 50.693852] SLUB: Unable to allocate memory on node -1, gfp=0x2080020(GFP_ATOMIC) [ 50.693857] cache: skbuff_head_cache, object size: 224, buffer size: 320, default order: 0, min order: 0 [ 50.693873] node 0: slabs: 944, objs: 11328, free: 0 [ 50.693893] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 50.693919] syz-executor.2: page allocation failure: order:0, mode:0x2280020(GFP_ATOMIC|__GFP_NOTRACK) [ 50.693925] CPU: 0 PID: 2236 Comm: syz-executor.2 Not tainted 4.9.141+ #1 [ 50.693936] ffff8801db6075c8 ffffffff81b42e79 1ffff1003b6c0ebb ffff8801cab22f80 [ 50.693946] ffffffff82a974e0 0000000000000000 0000000002280020 ffff8801db607710 [ 50.693955] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 50.693957] Call Trace: [ 50.693967] [ 50.693967] [] dump_stack+0xc1/0x128 [ 50.693975] [] warn_alloc.cold.31+0x7f/0x9c [ 50.693983] [] ? zone_watermark_ok_safe+0x250/0x250 [ 50.693991] [] ? get_page_from_freelist+0x23e/0x1d80 [ 50.694000] [] __alloc_pages_nodemask+0x628/0x1bd0 [ 50.694009] [] ? get_stack_info+0x37/0x120 [ 50.694017] [] ? __unwind_start+0x14d/0x3b0 [ 50.694025] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 50.694033] [] ? trace_hardirqs_on+0x10/0x10 [ 50.694041] [] new_slab+0x367/0x3d0 [ 50.694049] [] ___slab_alloc.constprop.33+0x2ed/0x470 [ 50.694057] [] ? __alloc_skb+0xe6/0x5b0 [ 50.694063] [] ? trace_hardirqs_on+0x10/0x10 [ 50.694071] [] ? debug_object_activate+0x32d/0x4e0 [ 50.694078] [] ? check_preemption_disabled+0x3b/0x200 [ 50.694085] [] ? __alloc_skb+0xe6/0x5b0 [ 50.694093] [] __slab_alloc.isra.25.constprop.32+0x50/0xa0 [ 50.694101] [] ? __alloc_skb+0xe6/0x5b0 [ 50.694108] [] kmem_cache_alloc+0x212/0x2b0 [ 50.694114] [] ? mark_held_locks+0xc7/0x130 [ 50.694122] [] __alloc_skb+0xe6/0x5b0 [ 50.694130] [] ? __kmalloc_reserve.isra.5+0xc0/0xc0 [ 50.694136] [] ? ipv6_get_ifaddr+0x300/0x510 [ 50.694142] [] ? trace_hardirqs_on+0xd/0x10 [ 50.694149] [] ? __local_bh_enable_ip+0x6a/0xe0 [ 50.694157] [] ndisc_alloc_skb+0x144/0x330 [ 50.694164] [] ndisc_send_rs+0x2ff/0x670 [ 50.694171] [] ? __ipv6_get_lladdr+0x250/0x250 [ 50.694177] [] addrconf_rs_timer+0x27e/0x5a0 [ 50.694184] [] ? ipv6_get_lladdr+0x440/0x440 [ 50.694191] [] call_timer_fn+0x163/0x6e0 [ 50.694197] [] ? call_timer_fn+0xda/0x6e0 [ 50.694204] [] ? ipv6_get_lladdr+0x440/0x440 [ 50.694210] [] ? process_timeout+0x20/0x20 [ 50.694216] [] ? mark_held_locks+0xc7/0x130 [ 50.694223] [] ? _raw_spin_unlock_irq+0x27/0x50 [ 50.694230] [] ? ipv6_get_lladdr+0x440/0x440 [ 50.694237] [] ? trace_hardirqs_on_caller+0x266/0x590 [ 50.694243] [] ? ipv6_get_lladdr+0x440/0x440 [ 50.694249] [] expire_timers+0x234/0x580 [ 50.694256] [] ? collect_expired_timers+0x1d5/0x2b0 [ 50.694263] [] run_timer_softirq+0x208/0x5e0 [ 50.694269] [] ? expire_timers+0x580/0x580 [ 50.694277] [] ? check_preemption_disabled+0x3b/0x200 [ 50.694285] [] __do_softirq+0x20e/0x964 [ 50.694292] [] ? check_preemption_disabled+0x3b/0x200 [ 50.694299] [] irq_exit+0x11c/0x150 [ 50.694306] [] smp_apic_timer_interrupt+0x81/0xb0 [ 50.694313] [] apic_timer_interrupt+0x9d/0xb0 [ 50.694322] [ 50.694323] [] ? lock_acquire+0x173/0x3e0 [ 50.694330] [] ? wake_oom_reaper+0xf0/0xf0 [ 50.694337] [] find_lock_task_mm+0x46/0x270 [ 50.694344] [] ? wake_oom_reaper+0xf0/0xf0 [ 50.694350] [] lowmem_scan+0x34f/0xaf0 [ 50.694356] [] ? lowmem_scan+0x24e/0xaf0 [ 50.694363] [] ? check_preemption_disabled+0x3b/0x200 [ 50.694371] [] shrink_slab.part.8+0x3c6/0xa00 [ 50.694379] [] ? unregister_shrinker+0x230/0x230 [ 50.694387] [] shrink_node+0x1ed/0x740 [ 50.694395] [] ? shrink_node_memcg.isra.19+0x12e0/0x12e0 [ 50.694403] [] ? __delayacct_freepages_start+0x41/0x80 [ 50.694410] [] try_to_free_pages+0x377/0xb80 [ 50.694427] [] ? shrink_node+0x740/0x740 [ 50.694436] [] __alloc_pages_nodemask+0x981/0x1bd0 [ 50.694442] [] ? _raw_spin_unlock_irq+0x38/0x50 [ 50.694455] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 50.694464] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.694470] [] ? retint_kernel+0x2d/0x2d [ 50.694478] [] __vmalloc_node_range+0x25b/0x600 [ 50.694486] [] ? xt_alloc_table_info+0xc9/0x100 [ 50.694492] [] vmalloc+0x5b/0x70 [ 50.694499] [] ? xt_alloc_table_info+0xc9/0x100 [ 50.694506] [] xt_alloc_table_info+0xc9/0x100 [ 50.694513] [] do_ip6t_set_ctl+0x235/0x470 [ 50.694521] [] ? compat_do_ip6t_set_ctl+0x140/0x140 [ 50.694529] [] ? mutex_unlock+0x9/0x10 [ 50.694536] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 50.694543] [] nf_setsockopt+0x6d/0xc0 [ 50.694550] [] ipv6_setsockopt+0xc8/0x130 [ 50.694557] [] udpv6_setsockopt+0x4a/0x90 [ 50.694565] [] sock_common_setsockopt+0x9a/0xe0 [ 50.694571] [] SyS_setsockopt+0x166/0x260 [ 50.694578] [] ? SyS_recv+0x40/0x40 [ 50.694585] [] ? SyS_clock_gettime+0x11e/0x1f0 [ 50.694592] [] ? SyS_clock_settime+0x220/0x220 [ 50.694599] [] ? do_syscall_64+0x48/0x550 [ 50.694605] [] ? SyS_recv+0x40/0x40 [ 50.694611] [] do_syscall_64+0x19f/0x550 [ 50.694619] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 50.694621] Mem-Info: [ 50.694636] active_anon:5289 inactive_anon:42 isolated_anon:0 [ 50.694636] active_file:7 inactive_file:27 isolated_file:0 [ 50.694636] unevictable:0 dirty:0 writeback:0 unstable:0 [ 50.694636] slab_reclaimable:4543 slab_unreclaimable:57382 [ 50.694636] mapped:7 shmem:48 pagetables:446 bounce:0 [ 50.694636] free:0 free_pcp:137 free_cma:0 [ 50.694648] Node 0 active_anon:21156kB inactive_anon:168kB active_file:28kB inactive_file:108kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:28kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes [ 50.694665] DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:44kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:500kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 50.694689] Normal free:0kB min:5580kB low:9168kB high:12756kB active_anon:21112kB inactive_anon:160kB active_file:28kB inactive_file:108kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:18172kB slab_unreclaimable:229028kB kernel_stack:4320kB pagetables:1784kB bounce:0kB free_pcp:428kB local_pcp:376kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 50.694722] DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 82 total pagecache pages [ 50.694752] 0 pages in swap cache [ 50.694756] Swap cache stats: add 0, delete 0, find 0/0 [ 50.694757] Free swap = 0kB [ 50.694759] Total swap = 0kB [ 50.694761] 1965979 pages RAM [ 50.694763] 0 pages HighMem/MovableOnly [ 50.694765] 313617 pages reserved [ 50.694770] SLUB: Unable to allocate memory on node -1, gfp=0x2080020(GFP_ATOMIC) [ 50.694775] cache: skbuff_head_cache, object size: 224, buffer size: 320, default order: 0, min order: 0 [ 50.694780] node 0: slabs: 944, objs: 11328, free: 0 [ 50.694783] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 50.694806] syz-executor.2: page allocation failure: order:0, mode:0x2280020(GFP_ATOMIC|__GFP_NOTRACK) [ 50.694812] CPU: 0 PID: 2236 Comm: syz-executor.2 Not tainted 4.9.141+ #1 [ 50.694822] ffff8801db6075c8 ffffffff81b42e79 1ffff1003b6c0ebb ffff8801cab22f80 [ 50.694832] ffffffff82a974e0 0000000000000000 0000000002280020 ffff8801db607710 [ 50.694841] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 50.694843] Call Trace: [ 50.694852] [ 50.694853] [] dump_stack+0xc1/0x128 [ 50.694860] [] warn_alloc.cold.31+0x7f/0x9c [ 50.694868] [] ? zone_watermark_ok_safe+0x250/0x250 [ 50.694876] [] ? get_page_from_freelist+0x23e/0x1d80 [ 50.694884] [] __alloc_pages_nodemask+0x628/0x1bd0 [ 50.694894] [] ? kvm_sched_clock_read+0x9/0x20 [ 50.694903] [] ? sched_clock+0x9/0x10 [ 50.694910] [] ? down_trylock+0x50/0x70 [ 50.694918] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 50.694927] [] ? vprintk_emit+0x272/0x790 [ 50.694935] [] ? trace_hardirqs_on+0x10/0x10 [ 50.694942] [] new_slab+0x367/0x3d0 [ 50.694950] [] ___slab_alloc.constprop.33+0x2ed/0x470 [ 50.694957] [] ? __alloc_skb+0xe6/0x5b0 [ 50.694964] [] ? trace_hardirqs_on+0x10/0x10 [ 50.694971] [] ? debug_object_activate+0x32d/0x4e0 [ 50.694979] [] ? check_preemption_disabled+0x3b/0x200 [ 50.694986] [] ? __alloc_skb+0xe6/0x5b0 [ 50.694994] [] __slab_alloc.isra.25.constprop.32+0x50/0xa0 [ 50.695001] [] ? __alloc_skb+0xe6/0x5b0 [ 50.695009] [] kmem_cache_alloc+0x212/0x2b0 [ 50.695015] [] ? mark_held_locks+0xc7/0x130 [ 50.695023] [] __alloc_skb+0xe6/0x5b0 [ 50.695030] [] ? __kmalloc_reserve.isra.5+0xc0/0xc0 [ 50.695037] [] ? ipv6_get_ifaddr+0x300/0x510 [ 50.695043] [] ? trace_hardirqs_on+0xd/0x10 [ 50.695050] [] ? __local_bh_enable_ip+0x6a/0xe0 [ 50.695058] [] ndisc_alloc_skb+0x144/0x330 [ 50.695065] [] ndisc_send_rs+0x2ff/0x670 [ 50.695071] [] ? __ipv6_get_lladdr+0x250/0x250 [ 50.695078] [] addrconf_rs_timer+0x27e/0x5a0 [ 50.695085] [] ? ipv6_get_lladdr+0x440/0x440 [ 50.695091] [] call_timer_fn+0x163/0x6e0 [ 50.695098] [] ? call_timer_fn+0xda/0x6e0 [ 50.695104] [] ? ipv6_get_lladdr+0x440/0x440 [ 50.695111] [] ? process_timeout+0x20/0x20 [ 50.695117] [] ? mark_held_locks+0xc7/0x130 [ 50.695124] [] ? _raw_spin_unlock_irq+0x27/0x50 [ 50.695130] [] ? ipv6_get_lladdr+0x440/0x440 [ 50.695137] [] ? trace_hardirqs_on_caller+0x266/0x590 [ 50.695143] [] ? ipv6_get_lladdr+0x440/0x440 [ 50.695150] [] expire_timers+0x234/0x580 [ 50.695156] [] ? collect_expired_timers+0x1d5/0x2b0 [ 50.695163] [] run_timer_softirq+0x208/0x5e0 [ 50.695170] [] ? expire_timers+0x580/0x580 [ 50.695177] [] ? check_preemption_disabled+0x3b/0x200 [ 50.695185] [] __do_softirq+0x20e/0x964 [ 50.695192] [] ? check_preemption_disabled+0x3b/0x200 [ 50.695198] [] irq_exit+0x11c/0x150 [ 50.695206] [] smp_apic_timer_interrupt+0x81/0xb0 [ 50.695213] [] apic_timer_interrupt+0x9d/0xb0 [ 50.695222] [ 50.695222] [] ? lock_acquire+0x173/0x3e0 [ 50.695229] [] ? wake_oom_reaper+0xf0/0xf0 [ 50.695237] [] find_lock_task_mm+0x46/0x270 [ 50.695244] [] ? wake_oom_reaper+0xf0/0xf0 [ 50.695250] [] lowmem_scan+0x34f/0xaf0 [ 50.695256] [] ? lowmem_scan+0x24e/0xaf0 [ 50.695263] [] ? check_preemption_disabled+0x3b/0x200 [ 50.695271] [] shrink_slab.part.8+0x3c6/0xa00 [ 50.695279] [] ? unregister_shrinker+0x230/0x230 [ 50.695286] [] shrink_node+0x1ed/0x740 [ 50.695295] [] ? shrink_node_memcg.isra.19+0x12e0/0x12e0 [ 50.695302] [] ? __delayacct_freepages_start+0x41/0x80 [ 50.695310] [] try_to_free_pages+0x377/0xb80 [ 50.695317] [] ? shrink_node+0x740/0x740 [ 50.695325] [] __alloc_pages_nodemask+0x981/0x1bd0 [ 50.695332] [] ? _raw_spin_unlock_irq+0x38/0x50 [ 50.695340] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 50.695348] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.695355] [] ? retint_kernel+0x2d/0x2d [ 50.695363] [] __vmalloc_node_range+0x25b/0x600 [ 50.695369] [] ? xt_alloc_table_info+0xc9/0x100 [ 50.695376] [] vmalloc+0x5b/0x70 [ 50.695383] [] ? xt_alloc_table_info+0xc9/0x100 [ 50.695389] [] xt_alloc_table_info+0xc9/0x100 [ 50.695397] [] do_ip6t_set_ctl+0x235/0x470 [ 50.695404] [] ? compat_do_ip6t_set_ctl+0x140/0x140 [ 50.695412] [] ? mutex_unlock+0x9/0x10 [ 50.695427] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 50.695434] [] nf_setsockopt+0x6d/0xc0 [ 50.695441] [] ipv6_setsockopt+0xc8/0x130 [ 50.695452] [] udpv6_setsockopt+0x4a/0x90 [ 50.695460] [] sock_common_setsockopt+0x9a/0xe0 [ 50.695466] [] SyS_setsockopt+0x166/0x260 [ 50.695473] [] ? SyS_recv+0x40/0x40 [ 50.695480] [] ? SyS_clock_gettime+0x11e/0x1f0 [ 50.695487] [] ? SyS_clock_settime+0x220/0x220 [ 50.695494] [] ? do_syscall_64+0x48/0x550 [ 50.695500] [] ? SyS_recv+0x40/0x40 [ 50.695507] [] do_syscall_64+0x19f/0x550 [ 50.695514] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 50.695516] Mem-Info: [ 50.695531] active_anon:5289 inactive_anon:42 isolated_anon:0 [ 50.695531] active_file:7 inactive_file:27 isolated_file:0 [ 50.695531] unevictable:0 dirty:0 writeback:0 unstable:0 [ 50.695531] slab_reclaimable:4543 slab_unreclaimable:57382 [ 50.695531] mapped:7 shmem:48 pagetables:446 bounce:0 [ 50.695531] free:0 free_pcp:137 free_cma:0 [ 50.695543] Node 0 active_anon:21156kB inactive_anon:168kB active_file:28kB inactive_file:108kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:28kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes [ 50.695559] DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:44kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020132kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:500kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 50.695583] Normal free:0kB min:5580kB low:9168kB high:12756kB active_anon:21112kB inactive_anon:160kB active_file:28kB inactive_file:108kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:18172kB slab_unreclaimable:229028kB kernel_stack:4320kB pagetables:1784kB bounce:0kB free_pcp:428kB local_pcp:376kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 50.695615] DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 82 total pagecache pages [ 50.695645] 0 pages in swap cache [ 50.695649] Swap cache stats: add 0, delete 0, find 0/0 [ 50.695651] Free swap = 0kB [ 50.695653] Total swap = 0kB [ 50.695655] 1965979 pages RAM [ 50.695656] 0 pages HighMem/MovableOnly [ 50.695658] 313617 pages reserved [ 50.695663] SLUB: Unable to allocate memory on node -1, gfp=0x2080020(GFP_ATOMIC) [ 50.695669] cache: skbuff_head_cache, object size: 224, buffer size: 320, default order: 0, min order: 0 [ 50.695673] node 0: slabs: 944, objs: 11328, free: 0 [ 50.695676] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb [ 50.695697] syz-executor.2: page allocation failure: order:0, mode:0x2280020(GFP_ATOMIC|__GFP_NOTRACK) [ 50.695703] CPU: 0 PID: 2236 Comm: syz-executor.2 Not tainted 4.9.141+ #1 [ 50.695713] ffff8801db6075c8 ffffffff81b42e79 1ffff1003b6c0ebb ffff8801cab22f80 [ 50.695723] ffffffff82a974e0 0000000000000000 0000000002280020 ffff8801db607710 [ 50.695733] ffffffff814fc7c8 0000000041b58ab3 ffffffff82e37a10 ffffffff81427db0 [ 50.695734] Call Trace: [ 50.695744] [ 50.695744] [] dump_stack+0xc1/0x128 [ 50.695751] [] warn_alloc.cold.31+0x7f/0x9c [ 50.695759] [] ? zone_watermark_ok_safe+0x250/0x250 [ 50.695767] [] ? get_page_from_freelist+0x23e/0x1d80 [ 50.695776] [] __alloc_pages_nodemask+0x628/0x1bd0 [ 50.695783] [] ? kvm_sched_clock_read+0x9/0x20 [ 50.695789] [] ? sched_clock+0x9/0x10 [ 50.695797] [] ? down_trylock+0x50/0x70 [ 50.695805] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 50.695812] [] ? vprintk_emit+0x272/0x790 [ 50.695820] [] ? trace_hardirqs_on+0x10/0x10 [ 50.695827] [] new_slab+0x367/0x3d0 [ 50.695835] [] ___slab_alloc.constprop.33+0x2ed/0x470 [ 50.695843] [] ? __alloc_skb+0xe6/0x5b0 [ 50.695849] [] ? trace_hardirqs_on+0x10/0x10 [ 50.695857] [] ? debug_object_activate+0x32d/0x4e0 [ 50.695864] [] ? check_preemption_disabled+0x3b/0x200 [ 50.695872] [] ? __alloc_skb+0xe6/0x5b0 [ 50.695880] [] __slab_alloc.isra.25.constprop.32+0x50/0xa0 [ 50.695887] [] ? __alloc_skb+0xe6/0x5b0 [ 50.695894] [] kmem_cache_alloc+0x212/0x2b0 [ 50.695900] [] ? mark_held_locks+0xc7/0x130 [ 50.695908] [] __alloc_skb+0xe6/0x5b0 [ 50.695915] [] ? __kmalloc_reserve.isra.5+0xc0/0xc0 [ 50.695922] [] ? ipv6_get_ifaddr+0x300/0x510 [ 50.695928] [] ? trace_hardirqs_on+0xd/0x10 [ 50.695935] [] ? __local_bh_enable_ip+0x6a/0xe0 [ 50.695943] [] ndisc_alloc_skb+0x144/0x330 [ 50.695950] [] ndisc_send_rs+0x2ff/0x670 [ 50.695956] [] ? __ipv6_get_lladdr+0x250/0x250 [ 50.695963] [] addrconf_rs_timer+0x27e/0x5a0 [ 50.695969] [] ? ipv6_get_lladdr+0x440/0x440 [ 50.695976] [] call_timer_fn+0x163/0x6e0 [ 50.695982] [] ? call_timer_fn+0xda/0x6e0 [ 50.695989] [] ? ipv6_get_lladdr+0x440/0x440 [ 50.695995] [] ? process_timeout+0x20/0x20 [ 50.696001] [] ? mark_held_locks+0xc7/0x130 [ 50.696008] [] ? _raw_spin_unlock_irq+0x27/0x50 [ 50.696014] [] ? ipv6_get_lladdr+0x440/0x440 [ 50.696021] [] ? trace_hardirqs_on_caller+0x266/0x590 [ 50.696028] [] ? ipv6_get_lladdr+0x440/0x440 [ 50.696034] [] expire_timers+0x234/0x580 [ 50.696040] [] ? collect_expired_timers+0x1d5/0x2b0 [ 50.696047] [] run_timer_softirq+0x208/0x5e0 [ 50.696054] [] ? expire_timers+0x580/0x580 [ 50.696061] [] ? check_preemption_disabled+0x3b/0x200 [ 50.696069] [] __do_softirq+0x20e/0x964 [ 50.696076] [] ? check_preemption_disabled+0x3b/0x200 [ 50.696083] [] irq_exit+0x11c/0x150 [ 50.696090] [] smp_apic_timer_interrupt+0x81/0xb0 [ 50.696097] [] apic_timer_interrupt+0x9d/0xb0 [ 50.696106] [ 50.696106] [] ? lock_acquire+0x173/0x3e0 [ 50.696113] [] ? wake_oom_reaper+0xf0/0xf0 [ 50.696121] [] find_lock_task_mm+0x46/0x270 [ 50.696128] [] ? wake_oom_reaper+0xf0/0xf0 [ 50.696134] [] lowmem_scan+0x34f/0xaf0 [ 50.696140] [] ? lowmem_scan+0x24e/0xaf0 [ 50.696147] [] ? check_preemption_disabled+0x3b/0x200 [ 50.696155] [] shrink_slab.part.8+0x3c6/0xa00 [ 50.696163] [] ? unregister_shrinker+0x230/0x230 [ 50.696171] [] shrink_node+0x1ed/0x740 [ 50.696179] [