[ 9.196270] random: sshd: uninitialized urandom read (32 bytes read) [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 25.228890] random: sshd: uninitialized urandom read (32 bytes read) [ 25.414168] audit: type=1400 audit(1536561257.857:6): avc: denied { map } for pid=1770 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 25.458595] random: sshd: uninitialized urandom read (32 bytes read) [ 25.943138] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.60' (ECDSA) to the list of known hosts. [ 31.570302] urandom_read: 1 callbacks suppressed [ 31.570306] random: sshd: uninitialized urandom read (32 bytes read) [ 31.671119] audit: type=1400 audit(1536561264.117:7): avc: denied { map } for pid=1788 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2018/09/10 06:34:24 parsed 1 programs [ 32.136357] audit: type=1400 audit(1536561264.577:8): avc: denied { map } for pid=1788 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=4999 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 32.394615] random: cc1: uninitialized urandom read (8 bytes read) 2018/09/10 06:34:25 executed programs: 0 [ 33.305763] audit: type=1400 audit(1536561265.747:9): avc: denied { map } for pid=1788 comm="syz-execprog" path="/root/syzkaller-shm864127156" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 39.353373] audit: type=1400 audit(1536561271.797:10): avc: denied { module_load } for pid=4447 comm="syz-executor4" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=system permissive=1 [ 43.982179] syz-executor3 invoked oom-killer: gfp_mask=0x14002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=(null), order=0, oom_score_adj=0 [ 43.995692] CPU: 1 PID: 4872 Comm: syz-executor3 Not tainted 4.14.68+ #4 [ 44.002532] Call Trace: [ 44.005127] dump_stack+0xb9/0x11b [ 44.008668] dump_header+0x17d/0x7a8 [ 44.012378] ? trace_hardirqs_on_caller+0x381/0x520 [ 44.017392] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 44.022492] ? ___ratelimit+0x4f/0x3f0 [ 44.026381] oom_kill_process.cold.8+0x10/0xc88 [ 44.031046] ? lock_downgrade+0x560/0x560 [ 44.035194] ? check_preemption_disabled+0x34/0x160 [ 44.040212] out_of_memory+0x669/0xa60 [ 44.044101] ? oom_killer_disable+0x1f0/0x1f0 [ 44.048623] __alloc_pages_nodemask+0x1949/0x2300 [ 44.053487] ? retint_kernel+0x2d/0x2d [ 44.057373] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 44.062214] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 44.066972] ? retint_kernel+0x2d/0x2d [ 44.070884] __vmalloc_node_range+0x283/0x680 [ 44.075385] ? SyS_init_module+0x119/0x1e0 [ 44.079618] __vmalloc+0x63/0x80 [ 44.082987] ? SyS_init_module+0x119/0x1e0 [ 44.087216] SyS_init_module+0x119/0x1e0 [ 44.091274] ? load_module+0x9150/0x9150 [ 44.095431] ? do_syscall_64+0x43/0x4b0 [ 44.099401] ? load_module+0x9150/0x9150 [ 44.103457] do_syscall_64+0x19b/0x4b0 [ 44.107352] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 44.112531] RIP: 0033:0x457099 [ 44.115711] RSP: 002b:00007ffe40b321e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000af [ 44.123410] RAX: ffffffffffffffda RBX: 0000000001957914 RCX: 0000000000457099 [ 44.130680] RDX: 00000000200000c0 RSI: 00000000fffffddb RDI: 0000000020000000 [ 44.137942] RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 [ 44.145208] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 44.152470] R13: 00000000004cd8a0 R14: 00000000004c3768 R15: 0000000000000000 [ 44.170234] Mem-Info: [ 44.172680] active_anon:5297 inactive_anon:41 isolated_anon:0 [ 44.172680] active_file:63 inactive_file:60 isolated_file:32 [ 44.172680] unevictable:0 dirty:0 writeback:0 unstable:0 [ 44.172680] slab_reclaimable:4628 slab_unreclaimable:58669 [ 44.172680] mapped:2 shmem:48 pagetables:495 bounce:0 [ 44.172680] free:6007 free_pcp:56 free_cma:0 [ 44.204815] Node 0 active_anon:21192kB inactive_anon:164kB active_file:188kB inactive_file:104kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:16kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 44.227353] DMA32 free:18456kB min:4792kB low:7868kB high:10944kB active_anon:96kB inactive_anon:0kB active_file:64kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3079672kB mlocked:0kB kernel_stack:128kB pagetables:28kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 44.254268] lowmem_reserve[]: 0 3437 3437 [ 44.258454] Normal free:5440kB min:5476kB low:8996kB high:12516kB active_anon:21096kB inactive_anon:164kB active_file:100kB inactive_file:100kB unevictable:0kB writepending:0kB present:4718592kB managed:3521516kB mlocked:0kB kernel_stack:3200kB pagetables:1952kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 44.293358] lowmem_reserve[]: 0 0 0 [ 44.297032] DMA32: 28*4kB (UME) 23*8kB (UME) 23*16kB (UME) 14*32kB (UME) 5*64kB (M) 3*128kB (UME) 1*256kB (E) 2*512kB (ME) 1*1024kB (E) 3*2048kB (UME) 2*4096kB (M) = 18456kB [ 44.313411] Normal: 309*4kB (UME) 135*8kB (ME) 61*16kB (ME) 33*32kB (UME) 11*64kB (UME) 2*128kB (UM) 1*256kB (M) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5564kB [ 44.336080] 115 total pagecache pages [ 44.339930] 0 pages in swap cache [ 44.343474] Swap cache stats: add 0, delete 0, find 0/0 [ 44.348833] Free swap = 0kB [ 44.353113] Total swap = 0kB [ 44.356151] 1965979 pages RAM [ 44.359243] 0 pages HighMem/MovableOnly [ 44.363231] 315682 pages reserved [ 44.366657] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 44.375417] [ 191] 0 191 5395 188 16 3 0 -1000 udevd [ 44.384906] [ 310] 0 310 5384 183 15 3 0 -1000 udevd [ 44.393723] [ 311] 0 311 5384 182 15 3 0 -1000 udevd [ 44.402504] [ 1489] 0 1489 2493 574 9 3 0 0 dhclient [ 44.421878] [ 1629] 0 1629 14265 108 23 3 0 0 rsyslogd [ 44.430961] [ 1683] 0 1683 4725 51 14 4 0 0 cron [ 44.439610] [ 1703] 0 1703 3735 44 11 3 0 0 mcstransd [ 44.449045] [ 1713] 0 1713 12490 152 28 3 0 -1000 sshd [ 44.457811] [ 1730] 0 1730 12927 1231 29 3 0 0 restorecond [ 44.467104] [ 1761] 0 1761 3649 41 13 3 0 0 getty [ 44.475977] [ 1786] 0 1786 17821 196 39 3 0 0 sshd [ 44.484652] [ 1788] 0 1788 41970 1707 31 5 0 0 syz-execprog [ 44.494015] [ 1799] 0 1799 9360 14 6 2 0 0 syz-executor4 [ 44.503459] [ 1800] 0 1800 9360 15 7 3 0 0 syz-executor4 [ 44.513237] [ 1801] 0 1801 9360 14 6 2 0 0 syz-executor3 [ 44.522707] [ 1803] 0 1803 9360 15 6 2 0 0 syz-executor0 [ 44.532164] [ 1804] 0 1804 9360 15 6 2 0 0 syz-executor1 [ 44.541721] [ 1805] 0 1805 9360 15 7 3 0 0 syz-executor3 [ 44.551586] [ 1807] 0 1807 9360 14 6 2 0 0 syz-executor2 [ 44.561140] [ 1806] 0 1806 9360 16 7 3 0 0 syz-executor0 [ 44.570696] [ 1808] 0 1808 9360 16 7 3 0 0 syz-executor1 [ 44.580184] [ 1809] 0 1809 9360 16 6 2 0 0 syz-executor6 [ 44.589613] [ 1810] 0 1810 9360 16 6 2 0 0 syz-executor5 [ 44.599151] [ 1811] 0 1811 9360 15 6 2 0 0 syz-executor2 [ 44.608610] [ 1812] 0 1812 9360 17 6 2 0 0 syz-executor6 [ 44.618070] [ 1813] 0 1813 9360 15 6 2 0 0 syz-executor7 [ 44.627538] [ 1814] 0 1814 9360 17 6 2 0 0 syz-executor5 [ 44.637928] [ 1815] 0 1815 9360 16 6 2 0 0 syz-executor7 [ 44.647457] [ 4447] 0 4447 9360 19 8 3 0 0 syz-executor4 [ 44.658110] [ 4468] 0 4468 3649 42 12 3 0 0 getty [ 44.667843] [ 4476] 0 4476 3649 43 13 3 0 0 getty [ 44.677133] [ 4479] 0 4479 3649 42 13 4 0 0 getty [ 44.688538] [ 4480] 0 4480 3649 44 13 3 0 0 getty [ 44.697312] [ 4481] 0 4481 3649 43 13 3 0 0 getty [ 44.707641] [ 4482] 0 4482 3649 42 13 4 0 0 getty [ 44.716431] [ 4872] 0 4872 9360 19 8 3 0 0 syz-executor3 [ 44.727072] [ 5113] 0 5113 9360 20 8 3 0 0 syz-executor0 [ 44.736533] [ 5120] 0 5120 9360 21 8 3 0 0 syz-executor1 [ 44.746908] [ 5226] 0 5226 1050 18 7 3 0 0 sh [ 44.755411] [ 5229] 0 5229 1050 17 8 3 0 0 sh [ 44.764837] [ 5230] 0 5230 1050 17 8 3 0 0 sh [ 44.773367] [ 5231] 0 5231 2135 23 10 3 0 0 ip [ 44.782786] Out of memory: Kill process 1788 (syz-execprog) score 1 or sacrifice child [ 44.791427] Killed process 1809 (syz-executor6) total-vm:37440kB, anon-rss:64kB, file-rss:0kB, shmem-rss:0kB [ 44.822077] oom_reaper: reaped process 1809 (syz-executor6), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 44.833220] ip invoked oom-killer: gfp_mask=0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 44.847713] CPU: 1 PID: 5231 Comm: ip Not tainted 4.14.68+ #4 [ 44.853602] Call Trace: [ 44.856201] dump_stack+0xb9/0x11b [ 44.859743] dump_header+0x17d/0x7a8 [ 44.863455] ? trace_hardirqs_on_caller+0x381/0x520 [ 44.868472] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 44.873580] ? ___ratelimit+0x4f/0x3f0 [ 44.877476] oom_kill_process.cold.8+0x10/0xc88 [ 44.882159] ? lock_downgrade+0x560/0x560 [ 44.886317] ? check_preemption_disabled+0x34/0x160 [ 44.891342] out_of_memory+0x669/0xa60 [ 44.895241] ? oom_killer_disable+0x1f0/0x1f0 [ 44.899747] __alloc_pages_nodemask+0x1949/0x2300 [ 44.904612] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 44.909457] ? find_get_entry+0x118/0x550 [ 44.913598] ? __radix_tree_lookup+0x220/0x220 [ 44.918159] ? check_preemption_disabled+0x34/0x160 [ 44.923173] ? find_get_entry+0x13f/0x550 [ 44.927322] ? pagecache_get_page+0x129/0x770 [ 44.931816] filemap_fault+0xcdd/0x14a0 [ 44.935811] ext4_filemap_fault+0x7d/0xb0 [ 44.939968] __do_fault+0x80/0x210 [ 44.943504] __handle_mm_fault+0xe04/0x23a0 [ 44.947826] ? vm_insert_page+0x6d0/0x6d0 [ 44.951993] ? check_preemption_disabled+0x34/0x160 [ 44.957009] handle_mm_fault+0x2f2/0x6eb [ 44.961069] __do_page_fault+0x45d/0xb60 [ 44.965138] ? retint_user+0x18/0x18 [ 44.968845] ? bad_area_access_error+0x330/0x330 [ 44.973596] ? page_fault+0x2c/0x50 [ 44.977221] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 44.982141] ? page_fault+0x2c/0x50 [ 44.985762] page_fault+0x42/0x50 [ 44.989206] RIP: 63d1e8:0xa34 [ 44.992303] RSP: 2598010:0000000000000001 EFLAGS: 7fffb83aa200 [ 45.000258] Mem-Info: [ 45.008633] active_anon:5257 inactive_anon:41 isolated_anon:0 [ 45.008633] active_file:51 inactive_file:23 isolated_file:0 [ 45.008633] unevictable:0 dirty:0 writeback:0 unstable:0 [ 45.008633] slab_reclaimable:4628 slab_unreclaimable:58670 [ 45.008633] mapped:2 shmem:48 pagetables:476 bounce:0 [ 45.008633] free:5900 free_pcp:82 free_cma:0 [ 45.041275] Node 0 active_anon:20996kB inactive_anon:164kB active_file:112kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 45.065199] DMA32 free:18496kB min:4792kB low:7868kB high:10944kB active_anon:16kB inactive_anon:0kB active_file:16kB inactive_file:48kB unevictable:0kB writepending:0kB present:3145324kB managed:3079672kB mlocked:0kB kernel_stack:96kB pagetables:0kB bounce:0kB free_pcp:132kB local_pcp:0kB free_cma:0kB [ 45.092921] lowmem_reserve[]: 0 3437 3437 [ 45.097103] Normal free:5104kB min:5476kB low:8996kB high:12516kB active_anon:20980kB inactive_anon:164kB active_file:204kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3521516kB mlocked:0kB kernel_stack:3168kB pagetables:1904kB bounce:0kB free_pcp:208kB local_pcp:176kB free_cma:0kB [ 45.126768] lowmem_reserve[]: 0 0 0 [ 45.130958] DMA32: 30*4kB (UME) 23*8kB (UME) 19*16kB (UME) 11*32kB (UME) 8*64kB (M) 4*128kB (UME) 1*256kB (E) 2*512kB (ME) 1*1024kB (E) 3*2048kB (UME) 2*4096kB (M) = 18624kB [ 45.146753] Normal: 328*4kB (UME) 140*8kB (UME) 66*16kB (UME) 25*32kB (UME) 8*64kB (UME) 2*128kB (UM) 1*256kB (M) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5312kB [ 45.164583] 114 total pagecache pages [ 45.168395] 0 pages in swap cache [ 45.171896] Swap cache stats: add 0, delete 0, find 0/0 [ 45.177251] Free swap = 0kB [ 45.180453] Total swap = 0kB [ 45.183474] 1965979 pages RAM [ 45.186568] 0 pages HighMem/MovableOnly [ 45.190591] 315682 pages reserved [ 45.194028] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 45.202766] [ 191] 0 191 5395 188 16 3 0 -1000 udevd [ 45.211762] [ 310] 0 310 5384 183 15 3 0 -1000 udevd [ 45.220767] [ 311] 0 311 5384 182 15 3 0 -1000 udevd [ 45.229495] [ 1489] 0 1489 2493 574 9 3 0 0 dhclient [ 45.238605] [ 1629] 0 1629 14265 108 23 3 0 0 rsyslogd [ 45.250916] [ 1683] 0 1683 4725 51 14 4 0 0 cron [ 45.259589] [ 1703] 0 1703 3735 44 11 3 0 0 mcstransd [ 45.271199] [ 1713] 0 1713 12490 152 28 3 0 -1000 sshd [ 45.279871] [ 1730] 0 1730 12927 1231 29 3 0 0 restorecond [ 45.299587] [ 1761] 0 1761 3649 41 13 3 0 0 getty [ 45.309659] [ 1786] 0 1786 17821 196 39 3 0 0 sshd [ 45.319678] [ 1788] 0 1788 41970 1707 31 5 0 0 syz-execprog [ 45.344795] [ 1799] 0 1799 9360 14 6 2 0 0 syz-executor4 [ 45.360559] [ 1800] 0 1800 9360 15 7 3 0 0 syz-executor4 [ 45.370050] [ 1801] 0 1801 9360 14 6 2 0 0 syz-executor3 [ 45.379485] [ 1803] 0 1803 9360 15 6 2 0 0 syz-executor0 [ 45.389001] [ 1804] 0 1804 9360 15 6 2 0 0 syz-executor1 [ 45.405296] [ 1805] 0 1805 9360 15 7 3 0 0 syz-executor3 [ 45.415746] [ 1807] 0 1807 9360 14 6 2 0 0 syz-executor2 [ 45.425239] [ 1806] 0 1806 9360 16 7 3 0 0 syz-executor0 [ 45.440375] [ 1808] 0 1808 9360 16 7 3 0 0 syz-executor1 [ 45.449826] [ 1810] 0 1810 9360 16 6 2 0 0 syz-executor5 [ 45.470240] [ 1811] 0 1811 9360 15 6 2 0 0 syz-executor2 [ 45.479690] [ 1813] 0 1813 9360 15 6 2 0 0 syz-executor7 [ 45.490806] [ 1814] 0 1814 9360 17 6 2 0 0 syz-executor5 [ 45.500280] [ 1815] 0 1815 9360 16 6 2 0 0 syz-executor7 [ 45.509705] [ 4447] 0 4447 9360 19 8 3 0 0 syz-executor4 [ 45.519240] [ 4468] 0 4468 3649 42 12 3 0 0 getty [ 45.529334] [ 4476] 0 4476 3649 43 13 3 0 0 getty [ 45.542008] [ 4479] 0 4479 3649 42 13 4 0 0 getty [ 45.550799] [ 4480] 0 4480 3649 44 13 3 0 0 getty [ 45.559549] [ 4481] 0 4481 3649 43 13 3 0 0 getty [ 45.572251] [ 4482] 0 4482 3649 42 13 4 0 0 getty [ 45.583586] [ 4872] 0 4872 9360 19 8 3 0 0 syz-executor3 [ 45.593070] [ 5113] 0 5113 9360 20 8 3 0 0 syz-executor0 [ 45.604330] [ 5120] 0 5120 9360 21 8 3 0 0 syz-executor1 [ 45.625464] [ 5229] 0 5229 1050 17 8 3 0 0 sh [ 45.642254] [ 5230] 0 5230 1050 17 8 3 0 0 sh [ 45.650787] [ 5231] 0 5231 2135 23 10 3 0 0 ip [ 45.659266] Out of memory: Kill process 1788 (syz-execprog) score 1 or sacrifice child [ 45.671278] Killed process 1810 (syz-executor5) total-vm:37440kB, anon-rss:64kB, file-rss:0kB, shmem-rss:0kB [ 45.681787] oom_reaper: reaped process 1810 (syz-executor5), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 45.700326] syz-executor1 invoked oom-killer: gfp_mask=0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 45.713212] CPU: 0 PID: 1808 Comm: syz-executor1 Not tainted 4.14.68+ #4 [ 45.720040] Call Trace: [ 45.722615] dump_stack+0xb9/0x11b [ 45.726148] dump_header+0x17d/0x7a8 [ 45.729836] ? trace_hardirqs_on_caller+0x381/0x520 [ 45.734825] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 45.739904] ? ___ratelimit+0x4f/0x3f0 [ 45.743773] oom_kill_process.cold.8+0x10/0xc88 [ 45.748419] ? lock_downgrade+0x560/0x560 [ 45.752546] ? check_preemption_disabled+0x34/0x160 [ 45.757542] out_of_memory+0x669/0xa60 [ 45.761405] ? oom_killer_disable+0x1f0/0x1f0 [ 45.765883] __alloc_pages_nodemask+0x1949/0x2300 [ 45.770746] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 45.775568] ? find_get_entry+0x118/0x550 [ 45.779697] ? __radix_tree_lookup+0x220/0x220 [ 45.784257] ? check_preemption_disabled+0x34/0x160 [ 45.789251] ? find_get_entry+0x13f/0x550 [ 45.793375] ? pagecache_get_page+0x129/0x770 [ 45.797864] filemap_fault+0xcdd/0x14a0 [ 45.801826] ext4_filemap_fault+0x7d/0xb0 [ 45.805950] __do_fault+0x80/0x210 [ 45.809464] __handle_mm_fault+0xe04/0x23a0 [ 45.813764] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 45.818841] ? vm_insert_page+0x6d0/0x6d0 [ 45.822964] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 45.828060] ? free_object+0xe4/0x240 [ 45.831843] ? check_preemption_disabled+0x34/0x160 [ 45.836834] handle_mm_fault+0x2f2/0x6eb [ 45.840875] __do_page_fault+0x45d/0xb60 [ 45.844913] ? retint_user+0x18/0x18 [ 45.848603] ? bad_area_access_error+0x330/0x330 [ 45.853335] ? page_fault+0x2c/0x50 [ 45.856950] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.861772] ? page_fault+0x2c/0x50 [ 45.865371] page_fault+0x42/0x50 [ 45.868794] RIP: a52c: (null) [ 45.872653] RSP: a52c:00000000000000fe EFLAGS: 00000000 [ 45.882670] Mem-Info: [ 45.890492] active_anon:5233 inactive_anon:41 isolated_anon:0 [ 45.890492] active_file:46 inactive_file:14 isolated_file:0 [ 45.890492] unevictable:0 dirty:0 writeback:0 unstable:0 [ 45.890492] slab_reclaimable:4628 slab_unreclaimable:58667 [ 45.890492] mapped:2 shmem:48 pagetables:464 bounce:0 [ 45.890492] free:5869 free_pcp:0 free_cma:0 [ 45.922565] Node 0 active_anon:20932kB inactive_anon:164kB active_file:152kB inactive_file:28kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 45.944791] DMA32 free:18128kB min:4792kB low:7868kB high:10944kB active_anon:16kB inactive_anon:0kB active_file:4kB inactive_file:60kB unevictable:0kB writepending:0kB present:3145324kB managed:3079672kB mlocked:0kB kernel_stack:96kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 45.971434] lowmem_reserve[]: 0 3437 3437 [ 45.975591] Normal free:5496kB min:5476kB low:8996kB high:12516kB active_anon:20916kB inactive_anon:164kB active_file:76kB inactive_file:124kB unevictable:0kB writepending:0kB present:4718592kB managed:3521516kB mlocked:0kB kernel_stack:3136kB pagetables:1856kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 46.009672] lowmem_reserve[]: 0 0 0 [ 46.013375] DMA32: 12*4kB (ME) 14*8kB (ME) 15*16kB (UME) 10*32kB (ME) 8*64kB (M) 4*128kB (UME) 2*256kB (UE) 3*512kB (UME) 2*1024kB (UE) 2*2048kB (ME) 2*4096kB (M) = 18128kB [ 46.029922] Normal: 332*4kB (UME) 147*8kB (UME) 73*16kB (UME) 26*32kB (UME) 8*64kB (UME) 2*128kB (UM) 1*256kB (M) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5528kB [ 46.072464] 115 total pagecache pages [ 46.076280] 0 pages in swap cache [ 46.079724] Swap cache stats: add 0, delete 0, find 0/0 [ 46.085107] Free swap = 0kB [ 46.088136] Total swap = 0kB [ 46.091175] 1965979 pages RAM [ 46.094272] 0 pages HighMem/MovableOnly [ 46.098233] 315682 pages reserved [ 46.101700] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 46.110397] [ 191] 0 191 5395 188 16 3 0 -1000 udevd [ 46.119245] [ 310] 0 310 5384 183 15 3 0 -1000 udevd [ 46.128234] [ 311] 0 311 5384 182 15 3 0 -1000 udevd [ 46.137067] [ 1489] 0 1489 2493 574 9 3 0 0 dhclient [ 46.146161] [ 1629] 0 1629 14265 107 23 3 0 0 rsyslogd [ 46.155181] [ 1683] 0 1683 4725 51 14 4 0 0 cron [ 46.164855] [ 1703] 0 1703 3735 44 11 3 0 0 mcstransd [ 46.177342] [ 1713] 0 1713 12490 152 28 3 0 -1000 sshd [ 46.186904] [ 1730] 0 1730 12927 1231 29 3 0 0 restorecond [ 46.201265] [ 1761] 0 1761 3649 41 13 3 0 0 getty [ 46.210986] [ 1786] 0 1786 17821 196 39 3 0 0 sshd [ 46.219647] [ 1788] 0 1788 41970 1707 31 5 0 0 syz-execprog [ 46.229739] [ 1799] 0 1799 9360 14 6 2 0 0 syz-executor4 [ 46.241065] [ 1800] 0 1800 9360 15 7 3 0 0 syz-executor4 [ 46.250583] [ 1801] 0 1801 9360 14 6 2 0 0 syz-executor3 [ 46.260052] [ 1803] 0 1803 9360 15 6 2 0 0 syz-executor0 [ 46.269506] [ 1804] 0 1804 9360 15 6 2 0 0 syz-executor1 [ 46.279887] [ 1805] 0 1805 9360 15 7 3 0 0 syz-executor3 [ 46.289467] [ 1807] 0 1807 9360 14 6 2 0 0 syz-executor2 [ 46.299647] [ 1806] 0 1806 9360 16 7 3 0 0 syz-executor0 [ 46.310279] [ 1808] 0 1808 9360 16 7 3 0 0 syz-executor1 [ 46.319724] [ 1811] 0 1811 9360 15 6 2 0 0 syz-executor2 [ 46.330437] [ 1813] 0 1813 9360 15 6 2 0 0 syz-executor7 [ 46.339881] [ 1815] 0 1815 9360 16 6 2 0 0 syz-executor7 [ 46.351716] [ 4447] 0 4447 9360 19 8 3 0 0 syz-executor4 [ 46.361224] [ 4468] 0 4468 3649 42 12 3 0 0 getty [ 46.370091] [ 4476] 0 4476 3649 43 13 3 0 0 getty [ 46.380246] [ 4479] 0 4479 3649 42 13 4 0 0 getty [ 46.389008] [ 4480] 0 4480 3649 44 13 3 0 0 getty [ 46.398102] [ 4481] 0 4481 3649 43 13 3 0 0 getty [ 46.407417] [ 4482] 0 4482 3649 42 13 4 0 0 getty [ 46.416200] [ 4872] 0 4872 9360 19 8 3 0 0 syz-executor3 [ 46.425667] [ 5113] 0 5113 9360 20 8 3 0 0 syz-executor0 [ 46.435156] [ 5120] 0 5120 9360 21 8 3 0 0 syz-executor1 [ 46.444636] [ 5229] 0 5229 1050 17 8 3 0 0 sh [ 46.453174] [ 5230] 0 5230 1050 17 8 3 0 0 sh [ 46.461696] [ 5231] 0 5231 2135 23 10 3 0 0 ip [ 46.470557] Out of memory: Kill process 1788 (syz-execprog) score 1 or sacrifice child [ 46.478657] Killed process 1804 (syz-executor1) total-vm:37440kB, anon-rss:60kB, file-rss:0kB, shmem-rss:0kB [ 46.500864] oom_reaper: reaped process 1804 (syz-executor1), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 46.515507] syz-execprog invoked oom-killer: gfp_mask=0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 46.528333] CPU: 1 PID: 1792 Comm: syz-execprog Not tainted 4.14.68+ #4 [ 46.535072] Call Trace: [ 46.537642] dump_stack+0xb9/0x11b [ 46.541187] dump_header+0x17d/0x7a8 [ 46.544892] ? trace_hardirqs_on_caller+0x381/0x520 [ 46.549885] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 46.554967] ? ___ratelimit+0x4f/0x3f0 [ 46.558835] oom_kill_process.cold.8+0x10/0xc88 [ 46.563481] ? lock_downgrade+0x560/0x560 [ 46.567608] ? check_preemption_disabled+0x34/0x160 [ 46.572618] out_of_memory+0x669/0xa60 [ 46.576503] ? oom_killer_disable+0x1f0/0x1f0 [ 46.580997] __alloc_pages_nodemask+0x1949/0x2300 [ 46.585837] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 46.590668] ? find_get_entry+0x118/0x550 [ 46.594808] ? __radix_tree_lookup+0x220/0x220 [ 46.599368] ? check_preemption_disabled+0x34/0x160 [ 46.604363] ? find_get_entry+0x13f/0x550 [ 46.608493] ? pagecache_get_page+0x129/0x770 [ 46.612979] filemap_fault+0xcdd/0x14a0 [ 46.616954] ext4_filemap_fault+0x7d/0xb0 [ 46.621088] __do_fault+0x80/0x210 [ 46.624631] __handle_mm_fault+0xe04/0x23a0 [ 46.628937] ? __fsnotify_update_child_dentry_flags.part.0+0x2e0/0x2e0 [ 46.635580] ? vm_insert_page+0x6d0/0x6d0 [ 46.639704] ? setup_sigcontext+0x810/0x810 [ 46.644013] ? check_preemption_disabled+0x34/0x160 [ 46.649007] handle_mm_fault+0x2f2/0x6eb [ 46.653057] __do_page_fault+0x45d/0xb60 [ 46.657111] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 46.662468] ? bad_area_access_error+0x330/0x330 [ 46.667215] ? page_fault+0x2c/0x50 [ 46.670823] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.675657] ? page_fault+0x2c/0x50 [ 46.679259] page_fault+0x42/0x50 [ 46.682693] RIP: 00ff:0xff [ 46.685562] RSP: 2024a000:000000c42025be30 EFLAGS: 00000000 [ 46.687364] Mem-Info: [ 46.695544] active_anon:5225 inactive_anon:41 isolated_anon:0 [ 46.695544] active_file:26 inactive_file:25 isolated_file:0 [ 46.695544] unevictable:0 dirty:0 writeback:0 unstable:0 [ 46.695544] slab_reclaimable:4628 slab_unreclaimable:58667 [ 46.695544] mapped:2 shmem:48 pagetables:464 bounce:0 [ 46.695544] free:5820 free_pcp:0 free_cma:0 [ 46.731166] Node 0 active_anon:20900kB inactive_anon:164kB active_file:204kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):128kB mapped:8kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 46.755146] DMA32 free:18128kB min:4792kB low:7868kB high:10944kB active_anon:16kB inactive_anon:0kB active_file:60kB inactive_file:4kB unevictable:0kB writepending:0kB present:3145324kB managed:3079672kB mlocked:0kB kernel_stack:96kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 46.781801] lowmem_reserve[]: 0 3437 3437 [ 46.785964] Normal free:5152kB min:5476kB low:8996kB high:12516kB active_anon:20884kB inactive_anon:164kB active_file:80kB inactive_file:120kB unevictable:0kB writepending:0kB present:4718592kB managed:3521516kB mlocked:0kB kernel_stack:3136kB pagetables:1856kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 46.813666] lowmem_reserve[]: 0 0 0 [ 46.817303] DMA32: 12*4kB (ME) 14*8kB (ME) 15*16kB (UME) 10*32kB (ME) 8*64kB (M) 4*128kB (UME) 2*256kB (UE) 3*512kB (UME) 2*1024kB (UE) 2*2048kB (ME) 2*4096kB (M) = 18128kB [ 46.832885] Normal: 313*4kB (UME) 139*8kB (UME) 61*16kB (ME) 26*32kB (UME) 8*64kB (UME) 2*128kB (UM) 1*256kB (M) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5196kB [ 46.847322] 114 total pagecache pages [ 46.851508] 0 pages in swap cache [ 46.855076] Swap cache stats: add 0, delete 0, find 0/0 [ 46.861378] Free swap = 0kB [ 46.864388] Total swap = 0kB [ 46.867430] 1965979 pages RAM [ 46.872147] 0 pages HighMem/MovableOnly [ 46.876127] 315682 pages reserved [ 46.879564] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 46.888982] [ 191] 0 191 5395 188 16 3 0 -1000 udevd [ 46.901631] [ 310] 0 310 5384 183 15 3 0 -1000 udevd [ 46.913300] [ 311] 0 311 5384 182 15 3 0 -1000 udevd [ 46.926011] [ 1489] 0 1489 2493 574 9 3 0 0 dhclient [ 46.936725] [ 1629] 0 1629 14265 107 23 3 0 0 rsyslogd [ 46.947400] [ 1683] 0 1683 4725 51 14 4 0 0 cron [ 46.957900] [ 1703] 0 1703 3735 44 11 3 0 0 mcstransd [ 46.967487] [ 1713] 0 1713 12490 152 28 3 0 -1000 sshd [ 46.977974] [ 1730] 0 1730 12927 1231 29 3 0 0 restorecond [ 46.987728] [ 1761] 0 1761 3649 41 13 3 0 0 getty [ 46.998300] [ 1786] 0 1786 17821 196 39 3 0 0 sshd [ 47.007456] [ 1788] 0 1788 41970 1707 31 5 0 0 syz-execprog [ 47.018648] [ 1799] 0 1799 9360 14 6 2 0 0 syz-executor4 [ 47.028659] [ 1800] 0 1800 9360 15 7 3 0 0 syz-executor4 [ 47.039933] [ 1801] 0 1801 9360 14 6 2 0 0 syz-executor3 [ 47.050639] [ 1803] 0 1803 9360 15 6 2 0 0 syz-executor0 [ 47.063241] [ 1805] 0 1805 9360 15 7 3 0 0 syz-executor3 [ 47.073586] [ 1807] 0 1807 9360 14 6 2 0 0 syz-executor2 [ 47.084765] [ 1806] 0 1806 9360 16 7 3 0 0 syz-executor0 [ 47.097216] [ 1808] 0 1808 9360 16 7 3 0 0 syz-executor1 [ 47.107625] [ 1811] 0 1811 9360 15 6 2 0 0 syz-executor2 [ 47.119491] [ 1813] 0 1813 9360 15 6 2 0 0 syz-executor7 [ 47.129468] [ 1815] 0 1815 9360 16 6 2 0 0 syz-executor7 [ 47.139866] [ 4447] 0 4447 9360 19 8 3 0 0 syz-executor4 [ 47.149806] [ 4468] 0 4468 3649 42 12 3 0 0 getty [ 47.159481] [ 4476] 0 4476 3649 43 13 3 0 0 getty [ 47.168734] [ 4479] 0 4479 3649 42 13 4 0 0 getty [ 47.178714] [ 4480] 0 4480 3649 44 13 3 0 0 getty [ 47.188212] [ 4481] 0 4481 3649 43 13 3 0 0 getty [ 47.198011] [ 4482] 0 4482 3649 42 13 4 0 0 getty [ 47.208358] [ 4872] 0 4872 9360 19 8 3 0 0 syz-executor3 [ 47.218719] [ 5113] 0 5113 9360 20 8 3 0 0 syz-executor0 [ 47.229978] [ 5120] 0 5120 9360 21 8 3 0 0 syz-executor1 [ 47.240874] [ 5229] 0 5229 1050 17 8 3 0 0 sh [ 47.249460] [ 5230] 0 5230 1050 17 8 3 0 0 sh [ 47.258443] [ 5231] 0 5231 2135 23 10 3 0 0 ip [ 47.267457] Out of memory: Kill process 1788 (syz-execprog) score 1 or sacrifice child [ 47.276515] Killed process 1813 (syz-executor7) total-vm:37440kB, anon-rss:60kB, file-rss:0kB, shmem-rss:0kB [ 47.302590] oom_reaper: reaped process 1813 (syz-executor7), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 47.321140] syz-executor0 invoked oom-killer: gfp_mask=0x14002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=(null), order=0, oom_score_adj=0 [ 47.337298] CPU: 0 PID: 5113 Comm: syz-executor0 Not tainted 4.14.68+ #4 [ 47.344362] Call Trace: [ 47.346934] dump_stack+0xb9/0x11b [ 47.350457] dump_header+0x17d/0x7a8 [ 47.354152] ? trace_hardirqs_on_caller+0x381/0x520 [ 47.359148] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 47.364236] ? ___ratelimit+0x4f/0x3f0 [ 47.368146] oom_kill_process.cold.8+0x10/0xc88 [ 47.372794] ? lock_downgrade+0x560/0x560 [ 47.376936] ? check_preemption_disabled+0x34/0x160 [ 47.381948] out_of_memory+0x669/0xa60 [ 47.385825] ? oom_killer_disable+0x1f0/0x1f0 [ 47.390304] __alloc_pages_nodemask+0x1949/0x2300 [ 47.395140] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 47.399958] ? trace_hardirqs_on_caller+0x381/0x520 [ 47.404968] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 47.409719] __vmalloc_node_range+0x283/0x680 [ 47.414199] ? SyS_init_module+0x119/0x1e0 [ 47.418410] __vmalloc+0x63/0x80 [ 47.421754] ? SyS_init_module+0x119/0x1e0 [ 47.425974] SyS_init_module+0x119/0x1e0 [ 47.430016] ? load_module+0x9150/0x9150 [ 47.434073] ? do_syscall_64+0x43/0x4b0 [ 47.438021] ? load_module+0x9150/0x9150 [ 47.442055] do_syscall_64+0x19b/0x4b0 [ 47.445922] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 47.451134] RIP: 0033:0x457099 [ 47.454302] RSP: 002b:00007ffc46e783b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000af [ 47.461984] RAX: ffffffffffffffda RBX: 0000000001732914 RCX: 0000000000457099 [ 47.469232] RDX: 00000000200000c0 RSI: 00000000fffffddb RDI: 0000000020000000 [ 47.476478] RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 [ 47.483723] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 47.490967] R13: 00000000004cd8a0 R14: 00000000004c3768 R15: 0000000000000000 [ 47.501481] Mem-Info: [ 47.503913] active_anon:5189 inactive_anon:41 isolated_anon:0 [ 47.503913] active_file:44 inactive_file:20 isolated_file:0 [ 47.503913] unevictable:0 dirty:0 writeback:0 unstable:0 [ 47.503913] slab_reclaimable:4628 slab_unreclaimable:58667 [ 47.503913] mapped:2 shmem:48 pagetables:446 bounce:0 [ 47.503913] free:5899 free_pcp:0 free_cma:0 [ 47.541106] Node 0 active_anon:20756kB inactive_anon:164kB active_file:108kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):128kB mapped:8kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 47.563578] DMA32 free:18128kB min:4792kB low:7868kB high:10944kB active_anon:12kB inactive_anon:0kB active_file:48kB inactive_file:16kB unevictable:0kB writepending:0kB present:3145324kB managed:3079672kB mlocked:0kB kernel_stack:96kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 47.590631] lowmem_reserve[]: 0 3437 3437 [ 47.594805] Normal free:5468kB min:5476kB low:8996kB high:12516kB active_anon:20744kB inactive_anon:164kB active_file:176kB inactive_file:96kB unevictable:0kB writepending:0kB present:4718592kB managed:3521516kB mlocked:0kB kernel_stack:3072kB pagetables:1784kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 47.623867] lowmem_reserve[]: 0 0 0 [ 47.627519] DMA32: 13*4kB (ME) 14*8kB (ME) 15*16kB (UME) 10*32kB (ME) 8*64kB (M) 4*128kB (UME) 2*256kB (UE) 3*512kB (UME) 2*1024kB (UE) 2*2048kB (ME) 2*4096kB (M) = 18132kB [ 47.643786] Normal: 323*4kB (UME) 148*8kB (UME) 64*16kB (UME) 30*32kB (UME) 8*64kB (UME) 2*128kB (UM) 1*256kB (M) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5484kB [ 47.659037] 114 total pagecache pages [ 47.671496] 0 pages in swap cache [ 47.674949] Swap cache stats: add 0, delete 0, find 0/0 [ 47.680334] Free swap = 0kB [ 47.683348] Total swap = 0kB [ 47.686354] 1965979 pages RAM [ 47.689446] 0 pages HighMem/MovableOnly [ 47.693447] 315682 pages reserved [ 47.696892] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 47.705588] [ 191] 0 191 5395 188 16 3 0 -1000 udevd [ 47.714372] [ 310] 0 310 5384 183 15 3 0 -1000 udevd [ 47.723162] [ 311] 0 311 5384 182 15 3 0 -1000 udevd [ 47.731943] [ 1489] 0 1489 2493 574 9 3 0 0 dhclient [ 47.749162] [ 1629] 0 1629 14265 107 23 3 0 0 rsyslogd [ 47.758197] [ 1683] 0 1683 4725 51 14 4 0 0 cron [ 47.769386] [ 1703] 0 1703 3735 44 11 3 0 0 mcstransd [ 47.783599] [ 1713] 0 1713 12490 152 28 3 0 -1000 sshd [ 47.822508] [ 1730] 0 1730 12927 1231 29 3 0 0 restorecond [ 47.836648] [ 1761] 0 1761 3649 41 13 3 0 0 getty [ 47.847009] [ 1786] 0 1786 17821 196 39 3 0 0 sshd [ 47.856654] [ 1788] 0 1788 41970 1707 31 5 0 0 syz-execprog [ 47.874561] [ 1799] 0 1799 9360 14 6 2 0 0 syz-executor4 [ 47.885176] [ 1800] 0 1800 9360 15 7 3 0 0 syz-executor4 [ 47.899381] [ 1801] 0 1801 9360 14 6 2 0 0 syz-executor3 [ 47.917040] [ 1803] 0 1803 9360 15 6 2 0 0 syz-executor0 [ 47.927443] [ 1805] 0 1805 9360 15 7 3 0 0 syz-executor3 [ 47.937812] [ 1807] 0 1807 9360 14 6 2 0 0 syz-executor2 [ 47.948100] [ 1806] 0 1806 9360 16 7 3 0 0 syz-executor0 [ 47.959110] [ 1811] 0 1811 9360 15 6 2 0 0 syz-executor2 [ 47.968587] [ 4447] 0 4447 9360 19 8 3 0 0 syz-executor4 [ 47.978771] [ 4468] 0 4468 3649 42 12 3 0 0 getty [ 47.988793] [ 4476] 0 4476 3649 43 13 3 0 0 getty [ 47.998828] [ 4479] 0 4479 3649 42 13 4 0 0 getty [ 48.008506] [ 4480] 0 4480 3649 44 13 3 0 0 getty [ 48.018205] [ 4481] 0 4481 3649 43 13 3 0 0 getty [ 48.027738] [ 4482] 0 4482 3649 42 13 4 0 0 getty [ 48.044031] [ 4872] 0 4872 9360 19 8 3 0 0 syz-executor3 [ 48.054887] [ 5113] 0 5113 9360 20 8 3 0 0 syz-executor0 [ 48.066649] [ 5120] 0 5120 9360 21 8 3 0 0 syz-executor1 [ 48.076966] [ 5229] 0 5229 1050 17 8 3 0 0 sh [ 48.087655] [ 5230] 0 5230 1050 17 8 3 0 0 sh [ 48.098829] [ 5231] 0 5231 2135 23 10 3 0 0 ip [ 48.109418] Out of memory: Kill process 1788 (syz-execprog) score 1 or sacrifice child [ 48.120990] Killed process 1803 (syz-executor0) total-vm:37440kB, anon-rss:60kB, file-rss:0kB, shmem-rss:0kB [ 48.164812] oom_reaper: reaped process 1803 (syz-executor0), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 48.174958] oom_reaper: reaped process 5231 (ip), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 48.269478] rsyslogd invoked oom-killer: gfp_mask=0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 48.283047] CPU: 0 PID: 1633 Comm: rsyslogd Not tainted 4.14.68+ #4 [ 48.289451] Call Trace: [ 48.292045] dump_stack+0xb9/0x11b [ 48.295584] dump_header+0x17d/0x7a8 [ 48.299294] ? trace_hardirqs_on_caller+0x381/0x520 [ 48.304298] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 48.309394] ? ___ratelimit+0x4f/0x3f0 [ 48.313262] oom_kill_process.cold.8+0x10/0xc88 [ 48.317906] ? lock_downgrade+0x560/0x560 [ 48.322050] ? check_preemption_disabled+0x34/0x160 [ 48.327045] out_of_memory+0x669/0xa60 [ 48.330911] ? oom_killer_disable+0x1f0/0x1f0 [ 48.335388] __alloc_pages_nodemask+0x1949/0x2300 [ 48.340244] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 48.345064] ? find_get_entry+0x118/0x550 [ 48.349191] ? __radix_tree_lookup+0x220/0x220 [ 48.353753] ? check_preemption_disabled+0x34/0x160 [ 48.358749] ? find_get_entry+0x13f/0x550 [ 48.362889] ? pagecache_get_page+0x129/0x770 [ 48.367361] filemap_fault+0xcdd/0x14a0 [ 48.371336] ext4_filemap_fault+0x7d/0xb0 [ 48.375461] __do_fault+0x80/0x210 [ 48.378994] __handle_mm_fault+0xe04/0x23a0 [ 48.383315] ? SyS_read+0x158/0x1a0 [ 48.386916] ? vm_insert_page+0x6d0/0x6d0 [ 48.391041] ? __fsnotify_parent+0xb1/0x300 [ 48.395350] ? check_preemption_disabled+0x34/0x160 [ 48.400343] handle_mm_fault+0x2f2/0x6eb [ 48.404396] __do_page_fault+0x45d/0xb60 [ 48.408438] ? retint_user+0x18/0x18 [ 48.412151] ? bad_area_access_error+0x330/0x330 [ 48.416884] ? page_fault+0x2c/0x50 [ 48.420486] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.425316] ? page_fault+0x2c/0x50 [ 48.428919] page_fault+0x42/0x50 [ 48.432347] RIP: 988ac9c0:0x7fa39b951040 [ 48.436394] RSP: eaf170:0000000000000000 EFLAGS: 0065e420 [ 48.461244] Mem-Info: [ 48.469247] active_anon:5108 inactive_anon:41 isolated_anon:0 [ 48.469247] active_file:36 inactive_file:22 isolated_file:4 [ 48.469247] unevictable:0 dirty:0 writeback:0 unstable:0 [ 48.469247] slab_reclaimable:4628 slab_unreclaimable:58456 [ 48.469247] mapped:2 shmem:48 pagetables:408 bounce:0 [ 48.469247] free:5830 free_pcp:0 free_cma:0 [ 48.502274] Node 0 active_anon:20432kB inactive_anon:164kB active_file:144kB inactive_file:88kB unevictable:0kB isolated(anon):0kB isolated(file):16kB mapped:8kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 48.524633] DMA32 free:18164kB min:4792kB low:7868kB high:10944kB active_anon:12kB inactive_anon:0kB active_file:36kB inactive_file:32kB unevictable:0kB writepending:0kB present:3145324kB managed:3079672kB mlocked:0kB kernel_stack:64kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 48.551383] lowmem_reserve[]: 0 3437 3437 [ 48.555568] Normal free:5236kB min:5476kB low:8996kB high:12516kB active_anon:20420kB inactive_anon:164kB active_file:104kB inactive_file:96kB unevictable:0kB writepending:0kB present:4718592kB managed:3521516kB mlocked:0kB kernel_stack:3008kB pagetables:1632kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 48.596008] lowmem_reserve[]: 0 0 0 [ 48.599665] DMA32: 13*4kB (ME) 14*8kB (ME) 15*16kB (UME) 12*32kB (UME) 8*64kB (M) 4*128kB (UME) 2*256kB (UE) 3*512kB (UME) 2*1024kB (UE) 2*2048kB (ME) 2*4096kB (M) = 18196kB [ 48.615559] Normal: 317*4kB (UME) 138*8kB (UME) 67*16kB (UME) 33*32kB (UME) 8*64kB (UME) 2*128kB (UM) 1*256kB (M) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5524kB [ 48.629942] 113 total pagecache pages [ 48.639891] 0 pages in swap cache [ 48.643399] Swap cache stats: add 0, delete 0, find 0/0 [ 48.648754] Free swap = 0kB [ 48.651776] Total swap = 0kB [ 48.654772] 1965979 pages RAM [ 48.657851] 0 pages HighMem/MovableOnly [ 48.661839] 315682 pages reserved [ 48.665282] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 48.673981] [ 191] 0 191 5395 188 16 3 0 -1000 udevd [ 48.682747] [ 310] 0 310 5384 183 15 3 0 -1000 udevd [ 48.691516] [ 311] 0 311 5384 182 15 3 0 -1000 udevd [ 48.701365] [ 1489] 0 1489 2493 574 9 3 0 0 dhclient [ 48.710668] [ 1629] 0 1629 14265 107 23 3 0 0 rsyslogd [ 48.719728] [ 1683] 0 1683 4725 51 14 4 0 0 cron [ 48.730433] [ 1703] 0 1703 3735 44 11 3 0 0 mcstransd [ 48.739534] [ 1713] 0 1713 12490 152 28 3 0 -1000 sshd [ 48.748196] [ 1730] 0 1730 12927 1231 29 3 0 0 restorecond [ 48.758611] [ 1761] 0 1761 3649 41 13 3 0 0 getty [ 48.767422] [ 1786] 0 1786 17821 196 39 3 0 0 sshd [ 48.777930] [ 1788] 0 1788 41970 1707 31 5 0 0 syz-execprog [ 48.787827] [ 1799] 0 1799 9360 14 6 2 0 0 syz-executor4 [ 48.798209] [ 1800] 0 1800 9360 15 7 3 0 0 syz-executor4 [ 48.808646] [ 1801] 0 1801 9360 14 6 2 0 0 syz-executor3 [ 48.818840] [ 1805] 0 1805 9360 15 7 3 0 0 syz-executor3 [ 48.829578] [ 1807] 0 1807 9360 14 6 2 0 0 syz-executor2 [ 48.844319] [ 1811] 0 1811 9360 15 6 2 0 0 syz-executor2 [ 48.854563] [ 4447] 0 4447 9360 19 8 3 0 0 syz-executor4 [ 48.865382] [ 4468] 0 4468 3649 42 12 3 0 0 getty [ 48.874607] [ 4476] 0 4476 3649 43 13 3 0 0 getty [ 48.884286] [ 4479] 0 4479 3649 42 13 4 0 0 getty [ 48.893601] [ 4480] 0 4480 3649 44 13 3 0 0 getty [ 48.903320] [ 4481] 0 4481 3649 43 13 3 0 0 getty [ 48.913024] [ 4482] 0 4482 3649 42 13 4 0 0 getty [ 48.922548] [ 4872] 0 4872 9360 19 8 3 0 0 syz-executor3 [ 48.932016] [ 5113] 0 5113 9360 20 8 3 0 0 syz-executor0 [ 48.942398] [ 5120] 0 5120 9360 21 8 3 0 0 syz-executor1 [ 48.951849] [ 5229] 0 5229 1050 17 8 3 0 0 sh [ 48.962477] Out of memory: Kill process 1788 (syz-execprog) score 1 or sacrifice child [ 48.970667] Killed process 1799 (syz-executor4) total-vm:37440kB, anon-rss:56kB, file-rss:0kB, shmem-rss:0kB [ 49.001965] oom_reaper: reaped process 1799 (syz-executor4), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 49.020769] syz-executor2 invoked oom-killer: gfp_mask=0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 49.034670] CPU: 1 PID: 1811 Comm: syz-executor2 Not tainted 4.14.68+ #4 [ 49.041510] Call Trace: [ 49.044093] dump_stack+0xb9/0x11b [ 49.047652] dump_header+0x17d/0x7a8 [ 49.051367] ? trace_hardirqs_on_caller+0x381/0x520 [ 49.056379] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 49.061471] ? ___ratelimit+0x4f/0x3f0 [ 49.065339] oom_kill_process.cold.8+0x10/0xc88 [ 49.069986] ? lock_downgrade+0x560/0x560 [ 49.074126] ? check_preemption_disabled+0x34/0x160 [ 49.079131] out_of_memory+0x669/0xa60 [ 49.083001] ? oom_killer_disable+0x1f0/0x1f0 [ 49.087477] __alloc_pages_nodemask+0x1949/0x2300 [ 49.092306] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 49.097149] ? find_get_entry+0x118/0x550 [ 49.101281] ? __radix_tree_lookup+0x220/0x220 [ 49.105842] ? check_preemption_disabled+0x34/0x160 [ 49.110852] ? find_get_entry+0x13f/0x550 [ 49.114978] ? pagecache_get_page+0x129/0x770 [ 49.119453] filemap_fault+0xcdd/0x14a0 [ 49.123419] ext4_filemap_fault+0x7d/0xb0 [ 49.127545] __do_fault+0x80/0x210 [ 49.131063] __handle_mm_fault+0xe04/0x23a0 [ 49.135363] ? vm_insert_page+0x6d0/0x6d0 [ 49.139490] ? ip_getsockopt+0x8f/0x160 [ 49.143440] ? do_ip_getsockopt+0x1500/0x1500 [ 49.147921] ? check_preemption_disabled+0x34/0x160 [ 49.152919] handle_mm_fault+0x2f2/0x6eb [ 49.156958] __do_page_fault+0x45d/0xb60 [ 49.160998] ? retint_user+0x18/0x18 [ 49.164690] ? bad_area_access_error+0x330/0x330 [ 49.169419] ? page_fault+0x2c/0x50 [ 49.173024] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.177843] ? page_fault+0x2c/0x50 [ 49.181446] page_fault+0x42/0x50 [ 49.184873] RIP: 70be60:0x310 [ 49.187948] RSP: 0003:0000000000000000 EFLAGS: 004c837b [ 49.189156] Mem-Info: [ 49.199588] active_anon:5087 inactive_anon:41 isolated_anon:0 [ 49.199588] active_file:18 inactive_file:17 isolated_file:0 [ 49.199588] unevictable:0 dirty:0 writeback:0 unstable:0 [ 49.199588] slab_reclaimable:4628 slab_unreclaimable:58459 [ 49.199588] mapped:2 shmem:48 pagetables:395 bounce:0 [ 49.199588] free:5915 free_pcp:0 free_cma:0 [ 49.237046] Node 0 active_anon:20348kB inactive_anon:164kB active_file:176kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 49.263564] DMA32 free:18204kB min:4792kB low:7868kB high:10944kB active_anon:12kB inactive_anon:0kB active_file:0kB inactive_file:76kB unevictable:0kB writepending:0kB present:3145324kB managed:3079672kB mlocked:0kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 49.293095] lowmem_reserve[]: 0 3437 3437 [ 49.297283] Normal free:5456kB min:5476kB low:8996kB high:12516kB active_anon:20336kB inactive_anon:164kB active_file:40kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3521516kB mlocked:0kB kernel_stack:2944kB pagetables:1580kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 49.328357] lowmem_reserve[]: 0 0 0 [ 49.332019] DMA32: 13*4kB (ME) 13*8kB (ME) 14*16kB (UME) 13*32kB (UME) 8*64kB (M) 4*128kB (UME) 2*256kB (UE) 3*512kB (UME) 2*1024kB (UE) 2*2048kB (ME) 2*4096kB (M) = 18204kB [ 49.350188] Normal: 366*4kB (UMEH) 143*8kB (UMEH) 64*16kB (UME) 25*32kB (MEH) 8*64kB (UME) 2*128kB (UM) 1*256kB (M) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5456kB [ 49.366624] 83 total pagecache pages [ 49.371100] 0 pages in swap cache [ 49.374559] Swap cache stats: add 0, delete 0, find 0/0 [ 49.379906] Free swap = 0kB [ 49.384848] Total swap = 0kB [ 49.387850] 1965979 pages RAM [ 49.391682] 0 pages HighMem/MovableOnly [ 49.395651] 315682 pages reserved [ 49.399079] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 49.409660] [ 191] 0 191 5395 188 16 3 0 -1000 udevd [ 49.418824] [ 310] 0 310 5384 183 15 3 0 -1000 udevd [ 49.429496] [ 311] 0 311 5384 182 15 3 0 -1000 udevd [ 49.438663] [ 1489] 0 1489 2493 574 9 3 0 0 dhclient [ 49.449606] [ 1629] 0 1629 14265 107 23 3 0 0 rsyslogd [ 49.459034] [ 1683] 0 1683 4725 51 14 4 0 0 cron [ 49.469645] [ 1703] 0 1703 3735 44 11 3 0 0 mcstransd [ 49.479158] [ 1713] 0 1713 12490 152 28 3 0 -1000 sshd [ 49.489760] [ 1730] 0 1730 12927 1231 29 3 0 0 restorecond [ 49.499457] [ 1761] 0 1761 3649 41 13 3 0 0 getty [ 49.510299] [ 1786] 0 1786 17821 196 39 3 0 0 sshd [ 49.518965] [ 1788] 0 1788 41970 1707 31 5 0 0 syz-execprog [ 49.530603] [ 1801] 0 1801 9360 14 6 2 0 0 syz-executor3 [ 49.541284] [ 1805] 0 1805 9360 15 7 3 0 0 syz-executor3 [ 49.551526] [ 1807] 0 1807 9360 14 6 2 0 0 syz-executor2 [ 49.562169] [ 1811] 0 1811 9360 15 6 2 0 0 syz-executor2 [ 49.572037] [ 4447] 0 4447 9360 19 8 3 0 0 syz-executor4 [ 49.583660] [ 4468] 0 4468 3649 42 12 3 0 0 getty [ 49.592841] [ 4476] 0 4476 3649 43 13 3 0 0 getty [ 49.602834] [ 4479] 0 4479 3649 42 13 4 0 0 getty [ 49.612376] [ 4480] 0 4480 3649 44 13 3 0 0 getty [ 49.621942] [ 4481] 0 4481 3649 43 13 3 0 0 getty [ 49.631471] [ 4482] 0 4482 3649 42 13 4 0 0 getty [ 49.641759] [ 4872] 0 4872 9360 19 8 3 0 0 syz-executor3 [ 49.651638] [ 5113] 0 5113 9360 20 8 3 0 0 syz-executor0 [ 49.662637] [ 5120] 0 5120 9360 21 8 3 0 0 syz-executor1 [ 49.672896] [ 5229] 0 5229 1050 17 8 3 0 0 sh [ 49.682200] Out of memory: Kill process 1788 (syz-execprog) score 1 or sacrifice child [ 49.691073] Killed process 1801 (syz-executor3) total-vm:37440kB, anon-rss:56kB, file-rss:0kB, shmem-rss:0kB [ 49.722487] oom_reaper: reaped process 1801 (syz-executor3), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 49.735575] syz-execprog invoked oom-killer: gfp_mask=0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null), order=0, oom_score_adj=0 [ 49.754650] CPU: 1 PID: 1802 Comm: syz-execprog Not tainted 4.14.68+ #4 [ 49.761402] Call Trace: [ 49.763990] dump_stack+0xb9/0x11b [ 49.767526] dump_header+0x17d/0x7a8 [ 49.771231] ? trace_hardirqs_on_caller+0x381/0x520 [ 49.776230] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 49.781313] ? ___ratelimit+0x4f/0x3f0 [ 49.785184] oom_kill_process.cold.8+0x10/0xc88 [ 49.789829] ? lock_downgrade+0x560/0x560 [ 49.793956] ? check_preemption_disabled+0x34/0x160 [ 49.798952] out_of_memory+0x669/0xa60 [ 49.802821] ? oom_killer_disable+0x1f0/0x1f0 [ 49.807300] __alloc_pages_nodemask+0x1949/0x2300 [ 49.812139] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 49.816960] ? find_get_entry+0x118/0x550 [ 49.821087] ? __radix_tree_lookup+0x220/0x220 [ 49.825649] ? check_preemption_disabled+0x34/0x160 [ 49.830683] ? find_get_entry+0x13f/0x550 [ 49.834828] ? pagecache_get_page+0x129/0x770 [ 49.839302] filemap_fault+0xcdd/0x14a0 [ 49.843267] ext4_filemap_fault+0x7d/0xb0 [ 49.847391] __do_fault+0x80/0x210 [ 49.850910] __handle_mm_fault+0xe04/0x23a0 [ 49.855208] ? ep_poll+0x1c2/0xc00 [ 49.858723] ? __might_fault+0xd4/0x1b0 [ 49.862688] ? vm_insert_page+0x6d0/0x6d0 [ 49.866815] ? ep_poll_readyevents_proc+0x90/0x90 [ 49.871647] ? check_preemption_disabled+0x34/0x160 [ 49.876644] handle_mm_fault+0x2f2/0x6eb [ 49.880683] __do_page_fault+0x45d/0xb60 [ 49.884723] ? retint_user+0x18/0x18 [ 49.888428] ? bad_area_access_error+0x330/0x330 [ 49.893163] ? page_fault+0x2c/0x50 [ 49.896763] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.901584] ? page_fault+0x2c/0x50 [ 49.905185] page_fault+0x42/0x50 [ 49.908611] RIP: 20222480:0x1 [ 49.911692] RSP: 000c:000000c42021d8c0 EFLAGS: 00000001 [ 49.915662] Mem-Info: [ 49.923482] active_anon:5062 inactive_anon:41 isolated_anon:0 [ 49.923482] active_file:28 inactive_file:23 isolated_file:0 [ 49.923482] unevictable:0 dirty:0 writeback:0 unstable:0 [ 49.923482] slab_reclaimable:4628 slab_unreclaimable:58460 [ 49.923482] mapped:2 shmem:48 pagetables:389 bounce:0 [ 49.923482] free:5901 free_pcp:32 free_cma:0 [ 49.958663] Node 0 active_anon:20248kB inactive_anon:164kB active_file:12kB inactive_file:88kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 49.983268] DMA32 free:18204kB min:4792kB low:7868kB high:10944kB active_anon:12kB inactive_anon:0kB active_file:92kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3079672kB mlocked:0kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 50.012282] lowmem_reserve[]: 0 3437 3437 [ 50.016469] Normal free:5400kB min:5476kB low:8996kB high:12516kB active_anon:20336kB inactive_anon:164kB active_file:0kB inactive_file:112kB unevictable:0kB writepending:0kB present:4718592kB managed:3521516kB mlocked:0kB kernel_stack:2912kB pagetables:1556kB bounce:0kB free_pcp:128kB local_pcp:0kB free_cma:0kB [ 50.045413] lowmem_reserve[]: 0 0 0 [ 50.049036] DMA32: 13*4kB (ME) 13*8kB (ME) 14*16kB (UME) 13*32kB (UME) 8*64kB (M) 4*128kB (UME) 2*256kB (UE) 3*512kB (UME) 2*1024kB (UE) 2*2048kB (ME) 2*4096kB (M) = 18204kB [ 50.065563] Normal: 362*4kB (UMEH) 150*8kB (UMEH) 68*16kB (UMEH) 26*32kB (UMEH) 8*64kB (UME) 2*128kB (UM) 1*256kB (M) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5592kB [ 50.089947] 84 total pagecache pages [ 50.093688] 0 pages in swap cache [ 50.097126] Swap cache stats: add 0, delete 0, find 0/0 [ 50.111463] Free swap = 0kB [ 50.114482] Total swap = 0kB [ 50.117480] 1965979 pages RAM [ 50.126517] 0 pages HighMem/MovableOnly [ 50.132093] 315682 pages reserved [ 50.135557] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 50.146920] [ 191] 0 191 5395 188 16 3 0 -1000 udevd [ 50.156096] [ 310] 0 310 5384 183 15 3 0 -1000 udevd [ 50.167551] [ 311] 0 311 5384 182 15 3 0 -1000 udevd [ 50.176732] [ 1489] 0 1489 2493 574 9 3 0 0 dhclient [ 50.188459] [ 1629] 0 1629 14265 107 23 3 0 0 rsyslogd [ 50.197893] [ 1683] 0 1683 4725 51 14 4 0 0 cron [ 50.209257] [ 1703] 0 1703 3735 44 11 3 0 0 mcstransd [ 50.218775] [ 1713] 0 1713 12490 152 28 3 0 -1000 sshd [ 50.231024] [ 1730] 0 1730 12927 1231 29 3 0 0 restorecond [ 50.242640] [ 1761] 0 1761 3649 41 13 3 0 0 getty [ 50.252951] [ 1786] 0 1786 17821 196 39 3 0 0 sshd [ 50.263975] [ 1788] 0 1788 41970 1707 31 5 0 0 syz-execprog [ 50.274891] [ 1805] 0 1805 9360 15 7 3 0 0 syz-executor3 [ 50.286852] [ 1807] 0 1807 9360 14 6 2 0 0 syz-executor2 [ 50.297864] [ 1811] 0 1811 9360 15 6 2 0 0 syz-executor2 [ 50.309645] [ 4447] 0 4447 9360 19 8 3 0 0 syz-executor4 [ 50.319931] [ 4468] 0 4468 3649 42 12 3 0 0 getty [ 50.333588] [ 4476] 0 4476 3649 43 13 3 0 0 getty [ 50.343546] [ 4479] 0 4479 3649 41 13 4 0 0 getty [ 50.356048] [ 4480] 0 4480 3649 43 13 3 0 0 getty [ 50.366008] [ 4481] 0 4481 3649 43 13 3 0 0 getty [ 50.377666] [ 4482] 0 4482 3649 41 13 4 0 0 getty [ 50.387616] [ 4872] 0 4872 9360 19 8 3 0 0 syz-executor3 [ 50.399172] [ 5113] 0 5113 9360 20 8 3 0 0 syz-executor0 [ 50.408662] [ 5120] 0 5120 9360 21 8 3 0 0 syz-executor1 [ 50.420167] Out of memory: Kill process 1788 (syz-execprog) score 1 or sacrifice child [ 50.428260] Killed process 1807 (syz-executor2) total-vm:37440kB, anon-rss:56kB, file-rss:0kB, shmem-rss:0kB [ 50.580790] oom_reaper: reaped process 1805 (syz-executor3), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 50.591829] oom_reaper: reaped process 5120 (syz-executor1), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 50.601745] oom_reaper: reaped process 5113 (syz-executor0), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 50.620603] kworker/u4:6 invoked oom-killer: gfp_mask=0x14002c0(GFP_KERNEL|__GFP_NOWARN), nodemask=(null), order=2, oom_score_adj=0 [ 50.633720] CPU: 0 PID: 2526 Comm: kworker/u4:6 Not tainted 4.14.68+ #4 [ 50.640478] Workqueue: netns cleanup_net [ 50.644513] Call Trace: [ 50.647091] dump_stack+0xb9/0x11b [ 50.650622] dump_header+0x17d/0x7a8 [ 50.654326] ? trace_hardirqs_on_caller+0x381/0x520 [ 50.659319] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 50.664402] ? ___ratelimit+0x4f/0x3f0 [ 50.668271] oom_kill_process.cold.8+0x10/0xc88 [ 50.672934] ? lock_downgrade+0x560/0x560 [ 50.677063] ? check_preemption_disabled+0x34/0x160 [ 50.682079] out_of_memory+0x669/0xa60 [ 50.685977] ? oom_killer_disable+0x1f0/0x1f0 [ 50.690468] __alloc_pages_nodemask+0x1949/0x2300 [ 50.695310] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 50.700148] ? trace_hardirqs_on+0x10/0x10 [ 50.704387] ? unwind_next_frame+0x677/0x1930 [ 50.708879] ? kthread+0x348/0x420 [ 50.712417] ? deref_stack_reg+0xe0/0xe0 [ 50.716494] depot_save_stack+0x3fa/0x428 [ 50.720735] ? __alloc_skb+0xd8/0x550 [ 50.724530] kasan_kmalloc.part.1+0xa9/0xd0 [ 50.728844] ? kasan_kmalloc.part.1+0x4f/0xd0 [ 50.733329] ? kmem_cache_alloc+0xe4/0x2b0 [ 50.737554] ? __alloc_skb+0xd8/0x550 [ 50.741348] ? rtmsg_ifinfo_build_skb+0x65/0x120 [ 50.746092] ? rtmsg_ifinfo_event.part.13+0x2e/0xc0 [ 50.751115] ? rtmsg_ifinfo+0x63/0x80 [ 50.754924] ? dev_close_many+0x2bf/0x610 [ 50.759064] ? rollback_registered_many+0x368/0xac0 [ 50.764170] ? unregister_netdevice_many+0x43/0x210 [ 50.769178] ? sit_exit_net+0x42a/0x600 [ 50.773152] ? ops_exit_list.isra.3+0xa8/0x150 [ 50.777726] ? cleanup_net+0x3e9/0x880 [ 50.781607] ? process_one_work+0x86e/0x15c0 [ 50.786002] ? worker_thread+0xdc/0x1000 [ 50.790050] ? kthread+0x348/0x420 [ 50.793581] ? ret_from_fork+0x3a/0x50 [ 50.797473] ? trace_hardirqs_on+0x10/0x10 [ 50.801696] ? trace_hardirqs_on_caller+0x261/0x520 [ 50.806702] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 50.811795] ? rcu_report_exp_cpu_mult+0x90/0x90 [ 50.816553] ? fs_reclaim_acquire+0x10/0x10 [ 50.820874] ? kasan_unpoison_shadow+0x30/0x40 [ 50.825446] ? kasan_kmalloc+0x76/0xc0 [ 50.829327] ? __alloc_skb+0xd8/0x550 [ 50.833118] kmem_cache_alloc+0xe4/0x2b0 [ 50.837193] __alloc_skb+0xd8/0x550 [ 50.840814] ? inet6_fill_ifaddr+0x970/0x970 [ 50.845213] ? __kmalloc_reserve.isra.8+0xc0/0xc0 [ 50.850049] ? lockdep_rtnl_is_held+0x16/0x20 [ 50.854540] ? inet6_get_link_af_size+0x56/0xb0 [ 50.859200] ? if_nlmsg_size+0x4ff/0x760 [ 50.863264] rtmsg_ifinfo_build_skb+0x65/0x120 [ 50.867847] rtmsg_ifinfo_event.part.13+0x2e/0xc0 [ 50.872691] rtmsg_ifinfo+0x63/0x80 [ 50.876314] dev_close_many+0x2bf/0x610 [ 50.880283] ? trace_hardirqs_on+0x10/0x10 [ 50.884508] ? __dev_close_many+0x260/0x260 [ 50.888818] ? sit_exit_net+0x86/0x600 [ 50.892705] ? dev_attr_show+0xc0/0xc0 [ 50.896592] rollback_registered_many+0x368/0xac0 [ 50.901428] ? ip6_tnl_exit_net+0x580/0x580 [ 50.905738] ? netdev_run_todo+0x5c7/0x750 [ 50.909964] ? free_netdev+0x3a0/0x3a0 [ 50.913851] ? sit_exit_net+0x168/0x600 [ 50.917818] ? lock_downgrade+0x560/0x560 [ 50.921959] ? lock_acquire+0x10f/0x380 [ 50.925938] unregister_netdevice_many+0x43/0x210 [ 50.930268] syz-executor3: page allocation failure: order:0, mode:0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null) [ 50.942274] sit_exit_net+0x42a/0x600 [ 50.946069] ? ip6_tnl_exit_net+0x3cd/0x580 [ 50.950385] ? ipip6_dellink+0x270/0x270 [ 50.954437] ? trace_raw_output_rcu_utilization+0xa0/0xa0 [ 50.959975] ? ipip6_dellink+0x270/0x270 [ 50.964028] ops_exit_list.isra.3+0xa8/0x150 [ 50.968437] cleanup_net+0x3e9/0x880 [ 50.972160] ? net_drop_ns.part.6+0x70/0x70 [ 50.976482] ? lock_acquire+0x10f/0x380 [ 50.980459] process_one_work+0x86e/0x15c0 [ 50.984698] ? pwq_dec_nr_in_flight+0x2b0/0x2b0 [ 50.989379] worker_thread+0xdc/0x1000 [ 50.993289] ? process_one_work+0x15c0/0x15c0 [ 50.997779] ? process_one_work+0x15c0/0x15c0 [ 51.002262] kthread+0x348/0x420 [ 51.005626] ? kthread_create_on_node+0xe0/0xe0 [ 51.010295] ret_from_fork+0x3a/0x50 [ 51.018962] CPU: 0 PID: 1805 Comm: syz-executor3 Not tainted 4.14.68+ #4 [ 51.025864] Call Trace: [ 51.028448] dump_stack+0xb9/0x11b [ 51.031985] warn_alloc.cold.35+0x9d/0x1b7 [ 51.036213] ? zone_watermark_ok_safe+0x240/0x240 [ 51.041045] ? usleep_range+0x130/0x130 [ 51.045026] ? run_timer_softirq+0x530/0x530 [ 51.049441] __alloc_pages_nodemask+0x19d8/0x2300 [ 51.054296] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 51.059228] ? find_get_entry+0x118/0x550 [ 51.063374] ? check_preemption_disabled+0x34/0x160 [ 51.068382] ? check_preemption_disabled+0x34/0x160 [ 51.073399] ? find_get_entry+0x13f/0x550 [ 51.077545] ? pagecache_get_page+0x129/0x770 [ 51.082041] filemap_fault+0xcdd/0x14a0 [ 51.086027] ext4_filemap_fault+0x7d/0xb0 [ 51.090174] __do_fault+0x80/0x210 [ 51.093713] __handle_mm_fault+0xe04/0x23a0 [ 51.098028] ? __might_fault+0x104/0x1b0 [ 51.102083] ? vm_insert_page+0x6d0/0x6d0 [ 51.106220] ? __might_fault+0xd4/0x1b0 [ 51.110207] ? check_preemption_disabled+0x34/0x160 [ 51.115221] handle_mm_fault+0x2f2/0x6eb [ 51.119277] __do_page_fault+0x45d/0xb60 [ 51.123340] ? retint_user+0x18/0x18 [ 51.127054] ? bad_area_access_error+0x330/0x330 [ 51.131802] ? page_fault+0x2c/0x50 [ 51.135447] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.140283] ? page_fault+0x2c/0x50 [ 51.143913] page_fault+0x42/0x50 [ 51.147357] RIP: 9fef: (null) [ 51.151232] RSP: 9fef:00000000000000fe EFLAGS: 00000000 [ 51.156746] Mem-Info: [ 51.164591] active_anon:4990 inactive_anon:41 isolated_anon:0 [ 51.164591] active_file:17 inactive_file:18 isolated_file:0 [ 51.164591] unevictable:0 dirty:0 writeback:0 unstable:0 [ 51.164591] slab_reclaimable:4632 slab_unreclaimable:58460 [ 51.164591] mapped:2 shmem:48 pagetables:375 bounce:0 [ 51.164591] free:4640 free_pcp:30 free_cma:0 [ 51.201201] Node 0 active_anon:19960kB inactive_anon:164kB active_file:68kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 51.228486] DMA32 free:15596kB min:4792kB low:7868kB high:10944kB active_anon:12kB inactive_anon:0kB active_file:40kB inactive_file:16kB unevictable:0kB writepending:0kB present:3145324kB managed:3079672kB mlocked:0kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB [ 51.259950] lowmem_reserve[]: 0 3437 3437 [ 51.264183] Normal free:2964kB min:5476kB low:8996kB high:12516kB active_anon:19948kB inactive_anon:164kB active_file:28kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3521516kB mlocked:0kB kernel_stack:2880kB pagetables:1500kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 51.296913] lowmem_reserve[]: 0 0 0 [ 51.300581] DMA32: 13*4kB (ME) 13*8kB (ME) 13*16kB (ME) 12*32kB (UME) 8*64kB (M) 4*128kB (UME) 2*256kB (UE) 2*512kB (ME) 2*1024kB (UE) 3*2048kB (UME) 1*4096kB (M) = 15596kB [ 51.320779] Normal: 235*4kB (UME) 105*8kB (UM) 38*16kB (UM) 16*32kB (UM) 1*64kB (U) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 2964kB [ 51.337674] 83 total pagecache pages [ 51.342186] 0 pages in swap cache [ 51.345845] Swap cache stats: add 0, delete 0, find 0/0 [ 51.354986] Free swap = 0kB [ 51.358003] Total swap = 0kB [ 51.361796] 1965979 pages RAM [ 51.364896] 0 pages HighMem/MovableOnly [ 51.368856] 315682 pages reserved [ 51.376112] Mem-Info: [ 51.376147] active_anon:4990 inactive_anon:41 isolated_anon:0 [ 51.376147] active_file:17 inactive_file:18 isolated_file:0 [ 51.376147] unevictable:0 dirty:0 writeback:0 unstable:0 [ 51.376147] slab_reclaimable:4632 slab_unreclaimable:58460 [ 51.376147] mapped:2 shmem:48 pagetables:375 bounce:0 [ 51.376147] free:4640 free_pcp:30 free_cma:0 [ 51.376161] Node 0 active_anon:19960kB inactive_anon:164kB active_file:68kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 51.376178] DMA32 free:15596kB min:4792kB low:7868kB high:10944kB active_anon:12kB inactive_anon:0kB active_file:40kB inactive_file:16kB unevictable:0kB writepending:0kB present:3145324kB managed:3079672kB mlocked:0kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB [ 51.376180] lowmem_reserve[]: 0 3437 3437 [ 51.376207] Normal free:2964kB min:5476kB low:8996kB high:12516kB active_anon:19948kB inactive_anon:164kB active_file:128kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3521516kB mlocked:0kB kernel_stack:2880kB pagetables:1500kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 51.376209] lowmem_reserve[]: 0 0 0 [ 51.376221] DMA32: 13*4kB (ME) 13*8kB (ME) 13*16kB (ME) 12*32kB (UME) 8*64kB (M) 4*128kB (UME) 2*256kB (UE) 2*512kB (ME) 2*1024kB (UE) 3*2048kB (UME) 1*4096kB (M) = 15596kB [ 51.376322] Normal: 235*4kB (UME) 105*8kB (UM) 38*16kB (UM) 16*32kB (UM) 1*64kB (U) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 2964kB [ 51.376376] 83 total pagecache pages [ 51.376386] 0 pages in swap cache [ 51.376391] Swap cache stats: add 0, delete 0, find 0/0 [ 51.376394] Free swap = 0kB [ 51.376397] Total swap = 0kB [ 51.376400] 1965979 pages RAM [ 51.376403] 0 pages HighMem/MovableOnly [ 51.376406] 315682 pages reserved [ 51.376409] [ pid ] uid tgid total_vm rss nr_p