INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-kasan-gce-4,10.128.0.20' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 53.721908] syzkaller653144 invoked oom-killer: gfp_mask=0x14000c0(GFP_KERNEL), nodemask=(null), order=0, oom_score_adj=0 [ 53.723599] syzkaller653144 cpuset=/ mems_allowed=0 [ 53.724524] CPU: 1 PID: 2990 Comm: syzkaller653144 Not tainted 4.14.0-rc6+ #145 [ 53.725509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.726751] Call Trace: [ 53.727111] dump_stack+0x194/0x257 [ 53.727613] ? arch_local_irq_restore+0x53/0x53 [ 53.728264] dump_header+0x234/0xa0e [ 53.728767] ? check_noncircular+0x20/0x20 [ 53.729348] ? task_will_free_mem+0x252/0xaa0 [ 53.729952] ? pagefault_out_of_memory+0x152/0x152 [ 53.730612] ? ___ratelimit+0x30d/0x630 [ 53.731149] ? lock_downgrade+0x990/0x990 [ 53.731723] ? do_raw_spin_trylock+0x190/0x190 [ 53.732339] ? mark_held_locks+0xaf/0x100 [ 53.732896] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 53.733576] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.734244] ? trace_hardirqs_on+0xd/0x10 [ 53.734800] ? ___ratelimit+0x95/0x630 [ 53.735343] ? idr_get_free_cmn+0xfd0/0xfd0 [ 53.735919] ? find_held_lock+0x35/0x1d0 [ 53.736472] oom_kill_process+0x86d/0x13d0 [ 53.737040] ? lock_downgrade+0x990/0x990 [ 53.737616] ? lock_release+0xa40/0xa40 [ 53.738155] ? oom_evaluate_task+0x480/0x480 [ 53.738745] ? security_capable_noaudit+0x8b/0xc0 [ 53.739398] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 53.740075] ? has_capability+0x30/0x30 [ 53.740608] ? mark_held_locks+0xaf/0x100 [ 53.741171] ? check_noncircular+0x20/0x20 [ 53.741735] ? has_capability_noaudit+0x24/0x30 [ 53.744268] ? oom_badness+0xdf/0xb80 [ 53.748036] ? lock_downgrade+0x990/0x990 [ 53.752151] ? find_lock_task_mm+0x460/0x460 [ 53.756524] ? lock_release+0xa40/0xa40 [ 53.760476] ? find_held_lock+0x35/0x1d0 [ 53.764509] ? out_of_memory+0xaa9/0x11d0 [ 53.768624] ? lock_downgrade+0x990/0x990 [ 53.772740] ? lock_release+0xa40/0xa40 [ 53.776677] ? lock_acquire+0x1d5/0x580 [ 53.780618] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 53.785608] ? oom_evaluate_task+0x284/0x480 [ 53.789986] out_of_memory+0x7dc/0x11d0 [ 53.793934] ? oom_killer_disable+0x310/0x310 [ 53.798394] ? mutex_trylock+0x23a/0x2d0 [ 53.802423] ? __lock_is_held+0xb6/0x140 [ 53.806450] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 53.811878] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 53.816712] ? warn_alloc+0x2f0/0x2f0 [ 53.820481] ? lock_downgrade+0x990/0x990 [ 53.824598] ? do_raw_spin_trylock+0x190/0x190 [ 53.829151] ? mark_held_locks+0xaf/0x100 [ 53.833267] ? _raw_spin_unlock_irq+0x27/0x70 [ 53.837729] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.842721] ? trace_hardirqs_on+0xd/0x10 [ 53.846834] ? _raw_spin_unlock_irq+0x27/0x70 [ 53.851294] ? finish_task_switch+0x1d3/0x740 [ 53.855759] ? check_noncircular+0x20/0x20 [ 53.859959] ? retint_kernel+0x10/0x10 [ 53.863817] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.868804] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 53.873543] ? __lock_is_held+0xb6/0x140 [ 53.877584] ? check_same_owner+0x320/0x320 [ 53.881871] ? __lock_is_held+0xb6/0x140 [ 53.885903] ? __might_sleep+0x95/0x190 [ 53.889847] __alloc_pages_nodemask+0x9fb/0xd80 [ 53.894487] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 53.899472] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.904456] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 53.909184] ? retint_kernel+0x10/0x10 [ 53.913052] ? __sanitizer_cov_trace_pc+0x2c/0x60 [ 53.917869] alloc_pages_current+0xb6/0x1e0 [ 53.922160] relay_open_buf.part.10+0x22e/0x9b0 [ 53.926807] relay_open+0x57a/0xa40 [ 53.930407] ? relay_open_buf.part.10+0x9b0/0x9b0 [ 53.935222] ? __debugfs_create_file+0x2cc/0x3e0 [ 53.939948] ? debugfs_create_file+0x57/0x70 [ 53.944330] do_blk_trace_setup+0x4a4/0xcf0 [ 53.948623] ? blk_tracer_print_line+0x40/0x40 [ 53.953173] ? __might_sleep+0x95/0x190 [ 53.957120] ? kasan_check_write+0x14/0x20 [ 53.961321] ? _copy_from_user+0x99/0x110 [ 53.965440] blk_trace_setup+0xbd/0x180 [ 53.969381] ? do_blk_trace_setup+0xcf0/0xcf0 [ 53.973852] ? avc_has_extended_perms+0x6e5/0x12c0 [ 53.978749] sg_ioctl+0xc71/0x2d90 [ 53.982256] ? lock_release+0xa40/0xa40 [ 53.986197] ? __handle_mm_fault+0x587/0x39c0 [ 53.990662] ? sg_new_write.isra.20+0x830/0x830 [ 53.995303] ? is_bpf_text_address+0xa4/0x120 [ 53.999768] ? avc_has_extended_perms+0x7fa/0x12c0 [ 54.004672] ? avc_ss_reset+0x110/0x110 [ 54.008612] ? find_held_lock+0x35/0x1d0 [ 54.012649] ? __do_page_fault+0x64c/0xd60 [ 54.016851] ? lock_downgrade+0x990/0x990 [ 54.020972] ? handle_mm_fault+0x410/0x8d0 [ 54.025184] ? check_same_owner+0x320/0x320 [ 54.029470] ? up_read+0x1a/0x40 [ 54.032805] ? __do_page_fault+0x3d6/0xd60 [ 54.037026] ? sg_new_write.isra.20+0x830/0x830 [ 54.042557] do_vfs_ioctl+0x1b1/0x1520 [ 54.046419] ? ioctl_preallocate+0x2b0/0x2b0 [ 54.050805] ? selinux_capable+0x40/0x40 [ 54.054835] ? putname+0xf3/0x130 [ 54.058256] ? do_sys_open+0x320/0x6d0 [ 54.062119] ? security_file_ioctl+0x89/0xb0 [ 54.066500] SyS_ioctl+0x8f/0xc0 [ 54.069838] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 54.074559] RIP: 0033:0x443ec9 [ 54.077715] RSP: 002b:00007ffc5e5a44e8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 54.085388] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000443ec9 [ 54.092622] RDX: 000000002084cf90 RSI: 00000000c0481273 RDI: 0000000000000003 [ 54.099856] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000 [ 54.107092] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000401bb0 [ 54.114330] R13: 0000000000401c40 R14: 0000000000000000 R15: 0000000000000000 [ 54.121640] Mem-Info: [ 54.124710] active_anon:2270 inactive_anon:32 isolated_anon:0 [ 54.124710] active_file:14 inactive_file:14 isolated_file:0 [ 54.124710] unevictable:0 dirty:0 writeback:0 unstable:0 [ 54.124710] slab_reclaimable:5855 slab_unreclaimable:83041 [ 54.124710] mapped:2 shmem:39 pagetables:266 bounce:0 [ 54.124710] free:24237 free_pcp:289 free_cma:0 [ 54.156854] Node 0 active_anon:9080kB inactive_anon:128kB active_file:56kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 54.183514] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 54.209635] lowmem_reserve[]: 0 2886 6399 6399 [ 54.214225] Node 0 DMA32 free:44120kB min:30408kB low:38008kB high:45608kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2958344kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 54.241379] lowmem_reserve[]: 0 0 3513 3513 [ 54.245702] Node 0 Normal free:36920kB min:37008kB low:46260kB high:55512kB active_anon:9080kB inactive_anon:128kB active_file:56kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:2624kB pagetables:1064kB bounce:0kB free_pcp:1156kB local_pcp:636kB free_cma:0kB [ 54.274965] lowmem_reserve[]: 0 0 0 0 [ 54.278786] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 54.292459] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 0*32kB 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 1*1024kB (M) 4*2048kB (UM) 8*4096kB (M) = 44120kB [ 54.307229] Node 0 Normal: 506*4kB (UME) 354*8kB (UME) 268*16kB (UMEH) 174*32kB (M) 99*64kB (ME) 54*128kB (M) 13*256kB (UM) 5*512kB (MH) 3*1024kB (UME) 0*2048kB 0*4096kB = 36920kB [ 54.323428] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 54.331996] 67 total pagecache pages [ 54.335713] 0 pages in swap cache [ 54.339169] Swap cache stats: add 0, delete 0, find 0/0 [ 54.344520] Free swap = 0kB [ 54.347529] Total swap = 0kB [ 54.350537] 1965979 pages RAM [ 54.353634] 0 pages HighMem/MovableOnly [ 54.357605] 323053 pages reserved [ 54.361057] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 54.369778] [ 1513] 0 1513 5349 121 16 3 0 -1000 udevd [ 54.378561] [ 1633] 0 1633 5348 122 15 3 0 -1000 udevd [ 54.387317] [ 1635] 0 1635 5348 122 15 3 0 -1000 udevd [ 54.396065] [ 2744] 0 2744 2493 573 10 3 0 0 dhclient [ 54.405083] [ 2876] 0 2876 14265 108 24 3 0 0 rsyslogd [ 54.414102] [ 2911] 0 2911 4725 49 15 3 0 0 cron [ 54.422770] [ 2937] 0 2937 12490 153 27 3 0 -1000 sshd [ 54.431437] [ 2961] 0 2961 3694 41 12 3 0 0 getty [ 54.440193] [ 2962] 0 2962 3694 40 13 3 0 0 getty [ 54.448948] [ 2963] 0 2963 3694 41 13 3 0 0 getty [ 54.457703] [ 2964] 0 2964 3694 40 13 3 0 0 getty [ 54.466458] [ 2965] 0 2965 3694 39 13 3 0 0 getty [ 54.475219] [ 2966] 0 2966 3694 41 13 3 0 0 getty [ 54.483977] [ 2967] 0 2967 3649 41 13 3 0 0 getty [ 54.492733] [ 2988] 0 2988 17821 197 37 3 0 0 sshd [ 54.501405] [ 2990] 0 2990 4383 513 6 2 0 0 syzkaller653144 [ 54.511040] Out of memory: Kill process 2744 (dhclient) score 0 or sacrifice child [ 54.519180] Killed process 2744 (dhclient) total-vm:9972kB, anon-rss:2292kB, file-rss:0kB, shmem-rss:0kB [ 54.533921] syzkaller653144 invoked oom-killer: gfp_mask=0x14000c0(GFP_KERNEL), nodemask=(null), order=0, oom_score_adj=0 [ 54.545676] syzkaller653144 cpuset=/ mems_allowed=0 [ 54.550715] CPU: 1 PID: 2990 Comm: syzkaller653144 Not tainted 4.14.0-rc6+ #145 [ 54.558129] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.567449] Call Trace: [ 54.570006] dump_stack+0x194/0x257 [ 54.573608] ? arch_local_irq_restore+0x53/0x53 [ 54.578260] dump_header+0x234/0xa0e [ 54.581944] ? check_noncircular+0x20/0x20 [ 54.586146] ? task_will_free_mem+0x252/0xaa0 [ 54.590616] ? pagefault_out_of_memory+0x152/0x152 [ 54.595520] ? ___ratelimit+0x30d/0x630 [ 54.599470] ? lock_downgrade+0x990/0x990 [ 54.603588] ? do_raw_spin_trylock+0x190/0x190 [ 54.608147] ? mark_held_locks+0xaf/0x100 [ 54.612265] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 54.617336] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 54.622318] ? trace_hardirqs_on+0xd/0x10 [ 54.626434] ? ___ratelimit+0x95/0x630 [ 54.630292] ? idr_get_free_cmn+0xfd0/0xfd0 [ 54.634576] ? find_held_lock+0x35/0x1d0 [ 54.638614] oom_kill_process+0x86d/0x13d0 [ 54.642815] ? lock_downgrade+0x990/0x990 [ 54.646931] ? lock_release+0xa40/0xa40 [ 54.650879] ? oom_evaluate_task+0x480/0x480 [ 54.655257] ? security_capable_noaudit+0x8b/0xc0 [ 54.660073] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 54.665142] ? has_capability+0x30/0x30 [ 54.669081] ? mark_held_locks+0xaf/0x100 [ 54.673205] ? check_noncircular+0x20/0x20 [ 54.677403] ? has_capability_noaudit+0x24/0x30 [ 54.682041] ? oom_badness+0xdf/0xb80 [ 54.685807] ? lock_downgrade+0x990/0x990 [ 54.689923] ? find_lock_task_mm+0x460/0x460 [ 54.694295] ? lock_release+0xa40/0xa40 [ 54.698245] ? find_held_lock+0x35/0x1d0 [ 54.702280] ? out_of_memory+0xaa9/0x11d0 [ 54.706394] ? lock_downgrade+0x990/0x990 [ 54.710510] ? lock_release+0xa40/0xa40 [ 54.714449] ? lock_acquire+0x1d5/0x580 [ 54.718388] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 54.723376] ? oom_evaluate_task+0x284/0x480 [ 54.727757] out_of_memory+0x7dc/0x11d0 [ 54.731704] ? oom_killer_disable+0x310/0x310 [ 54.736166] ? mutex_trylock+0x23a/0x2d0 [ 54.740194] ? __lock_is_held+0xb6/0x140 [ 54.744223] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 54.749648] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 54.754483] ? warn_alloc+0x2f0/0x2f0 [ 54.758252] ? lock_downgrade+0x990/0x990 [ 54.762369] ? do_raw_spin_trylock+0x190/0x190 [ 54.766921] ? mark_held_locks+0xaf/0x100 [ 54.771039] ? _raw_spin_unlock_irq+0x27/0x70 [ 54.775503] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 54.780485] ? trace_hardirqs_on+0xd/0x10 [ 54.784597] ? _raw_spin_unlock_irq+0x27/0x70 [ 54.789057] ? finish_task_switch+0x1d3/0x740 [ 54.793523] ? check_noncircular+0x20/0x20 [ 54.797723] ? retint_kernel+0x10/0x10 [ 54.801581] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 54.806567] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 54.811308] ? __lock_is_held+0xb6/0x140 [ 54.815348] ? check_same_owner+0x320/0x320 [ 54.819635] ? __lock_is_held+0xb6/0x140 [ 54.823667] ? __might_sleep+0x95/0x190 [ 54.827610] __alloc_pages_nodemask+0x9fb/0xd80 [ 54.832251] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 54.837238] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 54.842223] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 54.846951] ? retint_kernel+0x10/0x10 [ 54.850817] ? __sanitizer_cov_trace_pc+0x2c/0x60 [ 54.855633] alloc_pages_current+0xb6/0x1e0 [ 54.859927] relay_open_buf.part.10+0x22e/0x9b0 [ 54.864573] relay_open+0x57a/0xa40 [ 54.868172] ? relay_open_buf.part.10+0x9b0/0x9b0 [ 54.872987] ? __debugfs_create_file+0x2cc/0x3e0 [ 54.877713] ? debugfs_create_file+0x57/0x70 [ 54.882095] do_blk_trace_setup+0x4a4/0xcf0 [ 54.886386] ? blk_tracer_print_line+0x40/0x40 [ 54.890936] ? __might_sleep+0x95/0x190 [ 54.894884] ? kasan_check_write+0x14/0x20 [ 54.899083] ? _copy_from_user+0x99/0x110 [ 54.903199] blk_trace_setup+0xbd/0x180 [ 54.907141] ? do_blk_trace_setup+0xcf0/0xcf0 [ 54.911614] ? avc_has_extended_perms+0x6e5/0x12c0 [ 54.916512] sg_ioctl+0xc71/0x2d90 [ 54.920027] ? lock_release+0xa40/0xa40 [ 54.923976] ? __handle_mm_fault+0x587/0x39c0 [ 54.928446] ? sg_new_write.isra.20+0x830/0x830 [ 54.933087] ? is_bpf_text_address+0xa4/0x120 [ 54.937561] ? avc_has_extended_perms+0x7fa/0x12c0 [ 54.942466] ? avc_ss_reset+0x110/0x110 [ 54.946407] ? find_held_lock+0x35/0x1d0 [ 54.950441] ? __do_page_fault+0x64c/0xd60 [ 54.954643] ? lock_downgrade+0x990/0x990 [ 54.958764] ? handle_mm_fault+0x410/0x8d0 [ 54.962976] ? check_same_owner+0x320/0x320 [ 54.967261] ? up_read+0x1a/0x40 [ 54.970593] ? __do_page_fault+0x3d6/0xd60 [ 54.974801] ? sg_new_write.isra.20+0x830/0x830 [ 54.979436] do_vfs_ioctl+0x1b1/0x1520 [ 54.983295] ? ioctl_preallocate+0x2b0/0x2b0 [ 54.987671] ? selinux_capable+0x40/0x40 [ 54.991701] ? putname+0xf3/0x130 [ 54.995127] ? do_sys_open+0x320/0x6d0 [ 54.998990] ? security_file_ioctl+0x89/0xb0 [ 55.003370] SyS_ioctl+0x8f/0xc0 [ 55.006708] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 55.011431] RIP: 0033:0x443ec9 [ 55.014586] RSP: 002b:00007ffc5e5a44e8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 55.022258] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000443ec9 [ 55.029493] RDX: 000000002084cf90 RSI: 00000000c0481273 RDI: 0000000000000003 [ 55.036729] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000 [ 55.043965] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000401bb0 [ 55.051200] R13: 0000000000401c40 R14: 0000000000000000 R15: 0000000000000000 [ 55.058510] Mem-Info: [ 55.061787] active_anon:1697 inactive_anon:32 isolated_anon:0 [ 55.061787] active_file:0 inactive_file:0 isolated_file:0 [ 55.061787] unevictable:0 dirty:0 writeback:0 unstable:0 [ 55.061787] slab_reclaimable:5857 slab_unreclaimable:83037 [ 55.061787] mapped:2 shmem:39 pagetables:256 bounce:0 [ 55.061787] free:24361 free_pcp:127 free_cma:0 [ 55.093748] Node 0 active_anon:6788kB inactive_anon:128kB active_file:88kB inactive_file:224kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:188kB dirty:0kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 55.120640] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 55.146755] lowmem_reserve[]: 0 2886 6399 6399 [ 55.151364] Node 0 DMA32 free:44120kB min:30408kB low:38008kB high:45608kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2958344kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 55.178556] lowmem_reserve[]: 0 0 3513 3513 [ 55.182919] Node 0 Normal free:37144kB min:37008kB low:46260kB high:55512kB active_anon:6788kB inactive_anon:128kB active_file:128kB inactive_file:148kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:2592kB pagetables:1024kB bounce:0kB free_pcp:460kB local_pcp:0kB free_cma:0kB [ 55.212092] lowmem_reserve[]: 0 0 0 0 [ 55.216733] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 55.230393] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 4*16kB (UM) 0*32kB 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 1*1024kB (M) 4*2048kB (UM) 8*4096kB (M) = 44120kB [ 55.245114] Node 0 Normal: 334*4kB (UM) 324*8kB (UME) 246*16kB (M) 165*32kB (M) 95*64kB (UM) 57*128kB (UM) 16*256kB (M) 7*512kB (MH) 3*1024kB (UME) 0*2048kB 0*4096kB = 37272kB [ 55.260978] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 55.269536] 93 total pagecache pages [ 55.273230] 0 pages in swap cache [ 55.276665] Swap cache stats: add 0, delete 0, find 0/0 [ 55.282020] Free swap = 0kB [ 55.285024] Total swap = 0kB [ 55.288084] 1965979 pages RAM [ 55.291217] 0 pages HighMem/MovableOnly [ 55.296303] 323053 pages reserved [ 55.299773] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 55.308454] [ 1513] 0 1513 5349 121 16 3 0 -1000 udevd [ 55.317211] [ 1633] 0 1633 5348 122 15 3 0 -1000 udevd [ 55.325977] [ 1635] 0 1635 5348 122 15 3 0 -1000 udevd [ 55.334774] [ 2876] 0 2876 14265 157 24 3 0 0 rsyslogd [ 55.343829] [ 2911] 0 2911 4725 49 15 3 0 0 cron [ 55.352501] [ 2937] 0 2937 12490 153 27 3 0 -1000 sshd [ 55.361155] [ 2961] 0 2961 3694 41 12 3 0 0 getty [ 55.369904] [ 2962] 0 2962 3694 40 13 3 0 0 getty [ 55.378675] [ 2963] 0 2963 3694 41 13 3 0 0 getty [ 55.387448] [ 2964] 0 2964 3694 40 13 3 0 0 getty [ 55.396230] [ 2965] 0 2965 3694 39 13 3 0 0 getty [ 55.405006] [ 2966] 0 2966 3694 41 13 3 0 0 getty [ 55.413797] [ 2967] 0 2967 3649 41 13 3 0 0 getty [ 55.422574] [ 2988] 0 2988 17821 197 37 3 0 0 sshd [ 55.431258] [ 2990] 0 2990 4383 513 6 2 0 0 syzkaller653144 [ 55.440869] Out of memory: Kill process 2990 (syzkaller653144) score 0 or sacrifice child [ 55.449224] Killed process 2990 (syzkaller653144) total-vm:17532kB, anon-rss:2052kB, file-rss:0kB, shmem-rss:0kB [ 55.460208] oom_reaper: reaped process 2990 (syzkaller653144), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 55.485491] syzkaller653144 invoked oom-killer: gfp_mask=0x14000c0(GFP_KERNEL), nodemask=(null), order=0, oom_score_adj=0 [ 55.496700] syzkaller653144 cpuset=/ mems_allowed=0 [ 55.501727] CPU: 1 PID: 2990 Comm: syzkaller653144 Not tainted 4.14.0-rc6+ #145 [ 55.509147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.518476] Call Trace: [ 55.521040] dump_stack+0x194/0x257 [ 55.524636] ? arch_local_irq_restore+0x53/0x53 [ 55.529286] dump_header+0x234/0xa0e [ 55.532968] ? check_noncircular+0x20/0x20 [ 55.537170] ? task_will_free_mem+0x252/0xaa0 [ 55.541636] ? pagefault_out_of_memory+0x152/0x152 [ 55.546537] ? ___ratelimit+0x30d/0x630 [ 55.550480] ? lock_downgrade+0x990/0x990 [ 55.554598] ? do_raw_spin_trylock+0x190/0x190 [ 55.559151] ? mark_held_locks+0xaf/0x100 [ 55.563265] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 55.568338] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 55.573322] ? trace_hardirqs_on+0xd/0x10 [ 55.577437] ? ___ratelimit+0x95/0x630 [ 55.581293] ? idr_get_free_cmn+0xfd0/0xfd0 [ 55.585581] ? find_held_lock+0x35/0x1d0 [ 55.589619] oom_kill_process+0x86d/0x13d0 [ 55.593819] ? lock_downgrade+0x990/0x990 [ 55.597936] ? lock_release+0xa40/0xa40 [ 55.601879] ? check_noncircular+0x20/0x20 [ 55.606083] ? oom_evaluate_task+0x480/0x480 [ 55.610462] ? security_capable_noaudit+0x8b/0xc0 [ 55.615275] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 55.620345] ? has_capability+0x30/0x30 [ 55.624286] ? mark_held_locks+0xaf/0x100 [ 55.628404] ? find_held_lock+0x35/0x1d0 [ 55.632434] ? check_noncircular+0x20/0x20 [ 55.636636] ? oom_unkillable_task+0x394/0x4c0 [ 55.641192] ? lock_downgrade+0x990/0x990 [ 55.645308] ? lock_release+0xa40/0xa40 [ 55.649259] ? find_held_lock+0x35/0x1d0 [ 55.653294] ? out_of_memory+0xaa9/0x11d0 [ 55.657410] ? lock_downgrade+0x990/0x990 [ 55.661527] ? lock_release+0xa40/0xa40 [ 55.665466] ? lock_acquire+0x1d5/0x580 [ 55.669407] ? blocking_notifier_call_chain+0x112/0x190 [ 55.674736] ? __alloc_pages_slowpath+0x1001/0x2db0 [ 55.679724] ? oom_evaluate_task+0x284/0x480 [ 55.684106] out_of_memory+0x7dc/0x11d0 [ 55.688055] ? oom_killer_disable+0x310/0x310 [ 55.692514] ? mutex_trylock+0x23a/0x2d0 [ 55.696544] ? __lock_is_held+0xb6/0x140 [ 55.700572] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 55.705996] __alloc_pages_slowpath+0x1d9d/0x2db0 [ 55.710833] ? warn_alloc+0x2f0/0x2f0 [ 55.714604] ? lock_downgrade+0x990/0x990 [ 55.718724] ? do_raw_spin_trylock+0x190/0x190 [ 55.723279] ? print_irqtrace_events+0x270/0x270 [ 55.727999] ? mark_held_locks+0xaf/0x100 [ 55.732122] ? _raw_spin_unlock_irq+0x27/0x70 [ 55.736585] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 55.741569] ? trace_hardirqs_on+0xd/0x10 [ 55.745683] ? _raw_spin_unlock_irq+0x27/0x70 [ 55.750146] ? finish_task_switch+0x1d3/0x740 [ 55.754614] ? check_noncircular+0x20/0x20 [ 55.758817] ? retint_kernel+0x10/0x10 [ 55.762674] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 55.767660] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 55.772401] ? __lock_is_held+0xb6/0x140 [ 55.776442] ? check_same_owner+0x320/0x320 [ 55.780733] ? __lock_is_held+0xb6/0x140 [ 55.784767] ? __might_sleep+0x95/0x190 [ 55.788711] __alloc_pages_nodemask+0x9fb/0xd80 [ 55.793354] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 55.798340] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 55.803324] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 55.808053] ? retint_kernel+0x10/0x10 [ 55.811918] ? __sanitizer_cov_trace_pc+0x2c/0x60 [ 55.816735] alloc_pages_current+0xb6/0x1e0 [ 55.821033] relay_open_buf.part.10+0x22e/0x9b0 [ 55.825678] relay_open+0x57a/0xa40 [ 55.829276] ? relay_open_buf.part.10+0x9b0/0x9b0 [ 55.834091] ? __debugfs_create_file+0x2cc/0x3e0 [ 55.838819] ? debugfs_create_file+0x57/0x70 [ 55.843201] do_blk_trace_setup+0x4a4/0xcf0 [ 55.847501] ? blk_tracer_print_line+0x40/0x40 [ 55.852053] ? __might_sleep+0x95/0x190 [ 55.855999] ? kasan_check_write+0x14/0x20 [ 55.860206] ? _copy_from_user+0x99/0x110 [ 55.864323] blk_trace_setup+0xbd/0x180 [ 55.868267] ? do_blk_trace_setup+0xcf0/0xcf0 [ 55.872741] ? avc_has_extended_perms+0x6e5/0x12c0 [ 55.877638] sg_ioctl+0xc71/0x2d90 [ 55.881150] ? lock_release+0xa40/0xa40 [ 55.885090] ? __handle_mm_fault+0x587/0x39c0 [ 55.889553] ? sg_new_write.isra.20+0x830/0x830 [ 55.894197] ? is_bpf_text_address+0xa4/0x120 [ 55.898664] ? avc_has_extended_perms+0x7fa/0x12c0 [ 55.903569] ? avc_ss_reset+0x110/0x110 [ 55.907512] ? find_held_lock+0x35/0x1d0 [ 55.911549] ? __do_page_fault+0x64c/0xd60 [ 55.915752] ? lock_downgrade+0x990/0x990 [ 55.919874] ? handle_mm_fault+0x410/0x8d0 [ 55.924093] ? check_same_owner+0x320/0x320 [ 55.928380] ? up_read+0x1a/0x40 [ 55.931715] ? __do_page_fault+0x3d6/0xd60 [ 55.935924] ? sg_new_write.isra.20+0x830/0x830 [ 55.940559] do_vfs_ioctl+0x1b1/0x1520 [ 55.944419] ? ioctl_preallocate+0x2b0/0x2b0 [ 55.948796] ? selinux_capable+0x40/0x40 [ 55.952827] ? putname+0xf3/0x130 [ 55.956251] ? do_sys_open+0x320/0x6d0 [ 55.960116] ? security_file_ioctl+0x89/0xb0 [ 55.964493] SyS_ioctl+0x8f/0xc0 [ 55.967832] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 55.972552] RIP: 0033:0x443ec9 [ 55.975707] RSP: 002b:00007ffc5e5a44e8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 55.983381] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000443ec9 [ 55.990616] RDX: 000000002084cf90 RSI: 00000000c0481273 RDI: 0000000000000003 [ 55.997850] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000 [ 56.005085] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000401bb0 [ 56.012321] R13: 0000000000401c40 R14: 0000000000000000 R15: 0000000000000000 [ 56.019661] Mem-Info: [ 56.022932] active_anon:1172 inactive_anon:32 isolated_anon:0 [ 56.022932] active_file:14 inactive_file:14 isolated_file:0 [ 56.022932] unevictable:0 dirty:0 writeback:0 unstable:0 [ 56.022932] slab_reclaimable:5864 slab_unreclaimable:83070 [ 56.022932] mapped:2 shmem:39 pagetables:255 bounce:0 [ 56.022932] free:16026 free_pcp:18 free_cma:0 [ 56.055771] Node 0 active_anon:4688kB inactive_anon:128kB active_file:56kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 56.083924] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 56.110802] lowmem_reserve[]: 0 2886 6399 6399 [ 56.115962] Node 0 DMA32 free:29360kB min:30408kB low:38008kB high:45608kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2958344kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 56.143812] lowmem_reserve[]: 0 0 3513 3513 [ 56.148833] Node 0 Normal free:18836kB min:37008kB low:46260kB high:55512kB active_anon:4688kB inactive_anon:128kB active_file:156kB inactive_file:40kB unevictable:0kB writepending:0kB present:4718592kB managed:3597452kB mlocked:0kB kernel_stack:2592kB pagetables:1020kB bounce:0kB free_pcp:72kB local_pcp:0kB free_cma:0kB [ 56.178712] lowmem_reserve[]: 0 0 0 0 [ 56.183087] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 56.196738] Node 0 DMA32: 2*4kB (M) 3*8kB (UM) 3*16kB (M) 1*32kB (U) 3*64kB (M) 3*128kB (UM) 2*256kB (M) 3*512kB (UM) 2*1024kB (UM) 4*2048kB (UM) 4*4096kB (M) = 29360kB [ 56.212050] Node 0 Normal: 381*4kB (UM) 234*8kB (UM) 167*16kB (UM) 105*32kB (UM) 45*64kB (UM) 37*128kB (UM) 5*256kB (UM) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 18836kB [ 56.227431] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 56.235998] 67 total pagecache pages [ 56.239722] 0 pages in swap cache [ 56.243183] Swap cache stats: add 0, delete 0, find 0/0 [ 56.248548] Free swap = 0kB [ 56.251564] Total swap = 0kB [ 56.254584] 1965979 pages RAM [ 56.257689] 0 pages HighMem/MovableOnly [ 56.261659] 323053 pages reserved [ 56.265108] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 56.273800] [ 1513] 0 1513 5349 121 16 3 0 -1000 udevd [ 56.282555] [ 1633] 0 1633 5348 122 15 3 0 -1000 udevd [ 56.291315] [ 1635] 0 1635 5348 122 15 3 0 -1000 udevd [ 56.300088] [ 2876] 0 2876 14265 160 24 3 0 0 rsyslogd [ 56.309115] [ 2911] 0 2911 4725 49 15 3 0 0 cron [ 56.317814] [ 2937] 0 2937 12490 153 27 3 0 -1000 sshd [ 56.326496] [ 2961] 0 2961 3694 41 12 3 0 0 getty [ 56.335242] [ 2962] 0 2962 3694 40 13 3 0 0 getty [ 56.344004] [ 2963] 0 2963 3694 41 13 3 0 0 getty [ 56.352787] [ 2964] 0 2964 3694 40 13 3 0 0 getty [ 56.361554] [ 2965] 0 2965 3694 39 13 3 0 0 getty [ 56.370305] [ 2966] 0 2966 3694 41 13 3 0 0 getty [ 56.379068] [ 2967] 0 2967 3649 41 13 3 0 0 getty [ 56.387833] [ 2988] 0 2988 17821 197 37 3 0 0 sshd [ 56.396512] [ 2990] 0 2990 4383 0 5 2 0 0 syzkaller653144 [ 56.406126] Out of memory: Kill process 2988 (sshd) score 0 or sacrifice child [ 56.414424] Killed process 2988 (sshd) total-vm:71284kB, anon-rss:784kB, file-rss:0kB, shmem-rss:4kB [ 56.423926] syzkaller653144: page allocation failure: order:0, mode:0x14000c0(GFP_KERNEL), nodemask=(null) Connection to ci-upstream-kasan-gce-4 closed by remote host. [ 56.434877] oom_reaper: reaped process 2988 (ss