[....] 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. [ 28.736005] kauditd_printk_skb: 7 callbacks suppressed [ 28.736016] audit: type=1800 audit(1545616852.310:29): pid=5872 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 28.769411] audit: type=1800 audit(1545616852.310:30): pid=5872 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.158' (ECDSA) to the list of known hosts. 2018/12/24 02:03:36 parsed 1 programs 2018/12/24 02:03:37 executed programs: 0 syzkaller login: [ 194.029526] IPVS: ftp: loaded support on port[0] = 21 [ 194.285242] bridge0: port 1(bridge_slave_0) entered blocking state [ 194.292165] bridge0: port 1(bridge_slave_0) entered disabled state [ 194.299813] device bridge_slave_0 entered promiscuous mode [ 194.318615] bridge0: port 2(bridge_slave_1) entered blocking state [ 194.324999] bridge0: port 2(bridge_slave_1) entered disabled state [ 194.332349] device bridge_slave_1 entered promiscuous mode [ 194.350912] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 194.369044] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 194.420424] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 194.441046] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 194.519633] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 194.527117] team0: Port device team_slave_0 added [ 194.543840] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 194.551034] team0: Port device team_slave_1 added [ 194.568610] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 194.589328] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 194.610155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 194.631041] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 194.777018] bridge0: port 2(bridge_slave_1) entered blocking state [ 194.783435] bridge0: port 2(bridge_slave_1) entered forwarding state [ 194.790400] bridge0: port 1(bridge_slave_0) entered blocking state [ 194.796760] bridge0: port 1(bridge_slave_0) entered forwarding state [ 195.307639] 8021q: adding VLAN 0 to HW filter on device bond0 [ 195.360970] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 195.412563] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 195.418951] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 195.427258] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 195.474016] 8021q: adding VLAN 0 to HW filter on device team0 [ 200.596557] oom_reaper: reaped process 6298 (syz-executor0), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 200.688383] syz-executor0 invoked oom-killer: gfp_mask=0x6000c0(GFP_KERNEL), order=0, oom_score_adj=1000 [ 200.698250] CPU: 1 PID: 6298 Comm: syz-executor0 Not tainted 4.20.0-rc6-next-20181217+ #172 [ 200.706732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 200.716109] Call Trace: [ 200.718701] dump_stack+0x244/0x39d [ 200.722314] ? dump_stack_print_info.cold.1+0x20/0x20 [ 200.727525] dump_header+0x253/0x1239 [ 200.731327] ? mark_held_locks+0x130/0x130 [ 200.735577] ? pagefault_out_of_memory+0x19d/0x19d [ 200.740525] ? mark_held_locks+0x130/0x130 [ 200.744752] ? __lock_acquire+0x62f/0x4c20 [ 200.748986] ? print_usage_bug+0xc0/0xc0 [ 200.753057] ? graph_lock+0x270/0x270 [ 200.756878] ? print_usage_bug+0xc0/0xc0 [ 200.760930] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 200.766453] ? find_held_lock+0x36/0x1c0 [ 200.770510] ? mark_held_locks+0xc7/0x130 [ 200.774647] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 200.779733] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 200.784818] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 200.789388] ? trace_hardirqs_on+0xbd/0x310 [ 200.793703] ? kasan_check_read+0x11/0x20 [ 200.797838] ? ___ratelimit+0x3b4/0x672 [ 200.801797] ? trace_hardirqs_off_caller+0x310/0x310 [ 200.806884] ? trace_hardirqs_on+0x310/0x310 [ 200.811275] ? lock_downgrade+0x900/0x900 [ 200.815410] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 200.820495] ? ___ratelimit+0x3b9/0x672 [ 200.824476] ? idr_get_free+0xf70/0xf70 [ 200.828435] ? find_held_lock+0x36/0x1c0 [ 200.832482] oom_kill_process.cold.27+0x10/0x903 [ 200.837248] ? graph_lock+0x270/0x270 [ 200.841036] ? check_preemption_disabled+0x48/0x280 [ 200.846082] ? kasan_check_read+0x11/0x20 [ 200.850281] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 200.855571] ? oom_evaluate_task+0x540/0x540 [ 200.859965] ? find_held_lock+0x36/0x1c0 [ 200.864018] ? out_of_memory+0xcc5/0x1480 [ 200.868152] ? lock_downgrade+0x900/0x900 [ 200.872282] ? check_preemption_disabled+0x48/0x280 [ 200.877297] ? kasan_check_read+0x11/0x20 [ 200.881426] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 200.886689] ? rcu_read_unlock_special+0x370/0x370 [ 200.891605] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 200.897124] ? oom_evaluate_task+0x302/0x540 [ 200.901523] out_of_memory+0x8ba/0x1480 [ 200.905478] ? kasan_check_read+0x11/0x20 [ 200.909631] ? oom_killer_disable+0x3a0/0x3a0 [ 200.914112] ? __alloc_pages_slowpath+0xf45/0x2dc0 [ 200.919047] ? __ww_mutex_check_waiters+0x160/0x160 [ 200.924062] ? find_next_bit+0x104/0x130 [ 200.928110] __alloc_pages_slowpath+0x2308/0x2dc0 [ 200.932951] ? compat_start_thread+0x80/0x80 [ 200.937368] ? warn_alloc+0x120/0x120 [ 200.941150] ? mark_held_locks+0x130/0x130 [ 200.945373] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 200.950131] ? print_usage_bug+0xc0/0xc0 [ 200.954180] ? print_usage_bug+0xc0/0xc0 [ 200.958226] ? print_usage_bug+0xc0/0xc0 [ 200.962271] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 200.967043] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 200.971623] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 200.977142] ? should_fail+0x22d/0xd01 [ 200.981011] ? mark_held_locks+0xc7/0x130 [ 200.985147] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 200.990234] ? graph_lock+0x270/0x270 [ 200.994055] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 200.998815] ? __lock_is_held+0xb5/0x140 [ 201.002879] ? check_preemption_disabled+0x48/0x280 [ 201.007891] ? lock_release+0xa00/0xa00 [ 201.011853] ? perf_trace_sched_process_exec+0x860/0x860 [ 201.017286] ? __lock_is_held+0xb5/0x140 [ 201.021330] ? __might_sleep+0x95/0x190 [ 201.025292] __alloc_pages_nodemask+0xaed/0xec0 [ 201.029951] ? retint_kernel+0x2d/0x2d [ 201.033836] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 201.038576] ? __alloc_pages_slowpath+0x2dc0/0x2dc0 [ 201.043573] ? vfree_atomic+0xe0/0xe0 [ 201.047358] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 201.052096] ? retint_kernel+0x2d/0x2d [ 201.055967] ? policy_nodemask+0x56/0x1b0 [ 201.060100] ? __sanitizer_cov_trace_const_cmp2+0x19/0x20 [ 201.065620] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 201.071197] alloc_pages_current+0x173/0x350 [ 201.075607] relay_open_buf.part.10+0x2ab/0xb20 [ 201.080260] ? kmem_cache_alloc_trace+0x356/0x740 [ 201.085098] relay_open+0x5e5/0xac0 [ 201.088720] ? relay_open_buf.part.10+0xb20/0xb20 [ 201.093547] ? __debugfs_create_file+0x302/0x400 [ 201.098288] ? debugfs_create_file+0x57/0x70 [ 201.102682] do_blk_trace_setup+0x4fe/0xdb0 [ 201.107020] ? blk_tracer_print_line+0x60/0x60 [ 201.111610] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 201.117133] ? _copy_from_user+0xdf/0x150 [ 201.121266] __blk_trace_setup+0xd5/0x180 [ 201.125397] ? do_blk_trace_setup+0xdb0/0xdb0 [ 201.129879] ? disk_name+0xb0/0x120 [ 201.133490] ? mark_held_locks+0x130/0x130 [ 201.137723] blk_trace_ioctl+0x17a/0x2f0 [ 201.141767] ? blk_trace_startstop+0x70/0x70 [ 201.146164] ? find_held_lock+0x36/0x1c0 [ 201.150213] blkdev_ioctl+0x9e3/0x21a0 [ 201.154099] ? blkpg_ioctl+0xc10/0xc10 [ 201.157996] ? lock_downgrade+0x900/0x900 [ 201.162139] ? check_preemption_disabled+0x48/0x280 [ 201.167157] ? kasan_check_read+0x11/0x20 [ 201.171318] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 201.176582] ? rcu_read_unlock_special+0x370/0x370 [ 201.181509] ? __fget+0x4d1/0x740 [ 201.184950] ? ksys_dup3+0x680/0x680 [ 201.188650] ? __might_fault+0x12b/0x1e0 [ 201.192805] ? lock_downgrade+0x900/0x900 [ 201.196938] block_ioctl+0xee/0x130 [ 201.200562] ? blkdev_fallocate+0x400/0x400 [ 201.204881] do_vfs_ioctl+0x1de/0x1790 [ 201.208768] ? ioctl_preallocate+0x300/0x300 [ 201.213159] ? __fget_light+0x2e9/0x430 [ 201.217127] ? fget_raw+0x20/0x20 [ 201.220578] ? _copy_to_user+0xc8/0x110 [ 201.224559] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 201.230082] ? put_timespec64+0x10f/0x1b0 [ 201.234241] ? nsecs_to_jiffies+0x30/0x30 [ 201.238385] ? do_syscall_64+0x9a/0x820 [ 201.242342] ? do_syscall_64+0x9a/0x820 [ 201.246308] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 201.250895] ? security_file_ioctl+0x94/0xc0 [ 201.255290] ksys_ioctl+0xa9/0xd0 [ 201.258758] __x64_sys_ioctl+0x73/0xb0 [ 201.262631] do_syscall_64+0x1b9/0x820 [ 201.266501] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 201.271856] ? syscall_return_slowpath+0x5e0/0x5e0 [ 201.276769] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 201.281595] ? trace_hardirqs_on_caller+0x310/0x310 [ 201.286641] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 201.291658] ? prepare_exit_to_usermode+0x291/0x3b0 [ 201.296657] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 201.301497] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 201.306676] RIP: 0033:0x457669 [ 201.309859] Code: Bad RIP value. [ 201.313233] RSP: 002b:00007f48ee310c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 201.320918] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457669 [ 201.328166] RDX: 0000000020000200 RSI: 00000000c0481273 RDI: 0000000000000003 [ 201.335617] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 201.342883] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f48ee3116d4 [ 201.350131] R13: 00000000004bec46 R14: 00000000004cf928 R15: 00000000ffffffff [ 201.358852] Mem-Info: [ 201.361279] active_anon:3725 inactive_anon:196 isolated_anon:0 [ 201.361279] active_file:35 inactive_file:3 isolated_file:0 [ 201.361279] unevictable:0 dirty:0 writeback:0 unstable:0 [ 201.361279] slab_reclaimable:11955 slab_unreclaimable:89917 [ 201.361279] mapped:2 shmem:244 pagetables:300 bounce:0 [ 201.361279] free:17241 free_pcp:125 free_cma:0 [ 201.393658] Node 0 active_anon:14900kB inactive_anon:784kB active_file:140kB inactive_file:12kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 201.420508] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB 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 [ 201.446655] lowmem_reserve[]: 0 2816 6319 6319 [ 201.451267] Node 0 DMA32 free:28608kB min:30040kB low:37548kB high:45056kB active_anon:8kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2886740kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:248kB free_cma:0kB [ 201.479320] lowmem_reserve[]: 0 0 3503 3503 [ 201.483674] Node 0 Normal free:24448kB min:37376kB low:46720kB high:56064kB active_anon:14868kB inactive_anon:784kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3587560kB mlocked:0kB kernel_stack:6080kB pagetables:1196kB bounce:0kB free_pcp:248kB local_pcp:244kB free_cma:0kB [ 201.512550] lowmem_reserve[]: 0 0 0 0 [ 201.516606] 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 [ 201.530267] Node 0 DMA32: 6*4kB (UM) 3*8kB (M) 3*16kB (UM) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 3*256kB (UM) 3*512kB (UM) 3*1024kB (M) 3*2048kB (M) 4*4096kB (M) = 28608kB [ 201.545603] Node 0 Normal: 776*4kB (M) 520*8kB (UME) 260*16kB (UM) 137*32kB (ME) 49*64kB (ME) 13*128kB (UM) 7*256kB (UM) 4*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 24448kB [ 201.560939] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 201.569863] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 201.578450] 278 total pagecache pages [ 201.582238] 0 pages in swap cache [ 201.585739] Swap cache stats: add 0, delete 0, find 0/0 [ 201.591103] Free swap = 0kB [ 201.594124] Total swap = 0kB [ 201.597178] 1965979 pages RAM [ 201.600277] 0 pages HighMem/MovableOnly [ 201.604230] 343427 pages reserved [ 201.607713] 0 pages cma reserved [ 201.611167] Unreclaimable slab info: [ 201.615243] Name Used Total [ 201.620847] pid_2 33KB 36KB [ 201.626321] bio-3 0KB 3KB [ 201.631722] TIPC 2KB 7KB [ 201.637157] SCTPv6 4KB 4KB [ 201.642527] DCCPv6 4KB 7KB [ 201.647979] DCCP 4KB 6KB [ 201.653346] bridge_fdb_cache 2KB 3KB [ 201.658766] fib6_nodes 15KB 20KB [ 201.664141] ip6_dst_cache 67KB 67KB [ 201.669530] RAWv6 19KB 19KB [ 201.674879] UDPv6 14KB 14KB [ 201.680291] TCPv6 8KB 11KB [ 201.685716] nf_conntrack 2KB 3KB [ 201.691111] sd_ext_cdb 0KB 3KB [ 201.696532] scsi_sense_cache 1056KB 1060KB [ 201.701897] virtio_scsi_cmd 16KB 16KB [ 201.707274] sgpool-128 8KB 8KB [ 201.712634] sgpool-64 4KB 6KB [ 201.718037] sgpool-32 2KB 7KB [ 201.723404] sgpool-16 1KB 3KB [ 201.728807] sgpool-8 0KB 3KB [ 201.734213] mqueue_inode_cache 2KB 7KB [ 201.739695] bio_post_read_ctx 14KB 15KB [ 201.745059] bio-2 14KB 15KB [ 201.750464] jfs_mp 7KB 7KB [ 201.755871] nfs_commit_data 3KB 3KB [ 201.761243] nfs_write_data 32KB 32KB [ 201.766667] ext4_system_zone 0KB 3KB [ 201.772121] bio_post_read_ctx 14KB 15KB [ 201.777566] bio-1 1KB 3KB [ 201.782936] pid_namespace 0KB 3KB [ 201.788332] rpc_buffers 17KB 19KB [ 201.793678] rpc_tasks 2KB 3KB [ 201.799051] UNIX 435KB 438KB [ 201.804398] tcp_bind_bucket 0KB 4KB [ 201.809833] ip_fib_trie 2KB 3KB [ 201.815207] ip_fib_alias 9KB 11KB [ 201.820582] ip_dst_cache 3KB 8KB [ 201.826009] RAW 11KB 14KB [ 201.831387] UDP 34KB 39KB [ 201.836792] request_sock_TCP 0KB 3KB [ 201.842149] TCP 5KB 11KB [ 201.847563] hugetlbfs_inode_cache 2KB 7KB [ 201.853276] fscache_cookie_jar 1KB 3KB [ 201.858752] eventpoll_pwq 11KB 19KB [ 201.864097] eventpoll_epi 20KB 23KB [ 201.869492] inotify_inode_mark 6KB 11KB [ 201.874948] request_queue 135KB 147KB [ 201.880322] blkdev_ioc 20KB 30KB [ 201.885736] bio-0 435KB 435KB [ 201.891106] biovec-max 1361KB 1361KB [ 201.896540] biovec-64 261KB 275KB [ 201.901904] biovec-16 23KB 26KB [ 201.907293] bio_integrity_payload 1KB 3KB [ 201.912985] khugepaged_mm_slot 0KB 3KB [ 201.918489] uid_cache 1KB 4KB [ 201.923865] dmaengine-unmap-256 2KB 6KB [ 201.929436] dmaengine-unmap-128 1KB 3KB [ 201.934971] dmaengine-unmap-16 0KB 4KB [ 201.940433] dmaengine-unmap-2 0KB 3KB [ 201.945855] audit_buffer 0KB 3KB [ 201.951225] skbuff_fclone_cache 133KB 135KB [ 201.956791] skbuff_head_cache 1781KB 1781KB [ 201.962152] configfs_dir_cache 0KB 4KB [ 201.967640] file_lock_cache 178KB 180KB [ 201.973010] file_lock_ctx 1KB 3KB [ 201.978406] fsnotify_mark_connector 3KB 3KB [ 201.984273] net_namespace 8KB 8KB [ 201.989699] shmem_inode_cache 4524KB 4527KB [ 201.995068] task_delay_info 387KB 476KB [ 202.000457] taskstats 1KB 3KB [ 202.005902] proc_dir_entry 320KB 322KB [ 202.011284] pde_opener 19KB 27KB [ 202.016698] seq_file 191KB 783KB [ 202.022305] sigqueue 187KB 208KB [ 202.027722] kernfs_node_cache 8032KB 8036KB [ 202.033100] mnt_cache 30KB 32KB [ 202.038517] filp 7023KB 7747KB [ 202.043896] names_cache 92293KB 92322KB [ 202.049303] iint_cache 73KB 75KB [ 202.054668] key_jar 3KB 7KB [ 202.060069] uts_namespace 0KB 3KB [ 202.065469] nsproxy 0KB 3KB [ 202.070848] vm_area_struct 17814KB 18550KB [ 202.076358] mm_struct 4712KB 5135KB [ 202.081708] fs_cache 448KB 480KB [ 202.087120] files_cache 1713KB 1792KB [ 202.092490] signal_cache 2708KB 2990KB [ 202.097928] sighand_cache 425KB 471KB [ 202.103288] task_struct 11156KB 11211KB [ 202.108681] cred_jar 2406KB 2580KB [ 202.114041] anon_vma_chain 8343KB 9394KB [ 202.119415] anon_vma 129KB 373KB [ 202.124759] pid 248KB 372KB [ 202.130152] Acpi-Operand 106KB 162KB [ 202.135558] Acpi-Namespace 19KB 23KB [ 202.140919] numa_policy 0KB 3KB [ 202.146314] trace_event_file 262KB 262KB [ 202.151683] ftrace_event_field 377KB 378KB [ 202.157163] pool_workqueue 72KB 76KB [ 202.162527] task_group 0KB 3KB [ 202.167924] debug_objects_cache 910KB 935KB [ 202.173466] page->ptl 3011KB 3372KB [ 202.178866] kmalloc-2M 2050KB 2050KB [ 202.184214] kmalloc-512k 2056KB 2056KB [ 202.189624] kmalloc-256k 516KB 516KB [ 202.195019] kmalloc-128k 520KB 520KB [ 202.200423] kmalloc-64k 594KB 594KB [ 202.205819] kmalloc-32k 16632KB 16632KB [ 202.211182] kmalloc-16k 1485KB 1485KB [ 202.216568] kmalloc-8k 1039KB 1039KB [ 202.221915] kmalloc-4k 7747KB 7786KB [ 202.227312] kmalloc-2k 7333KB 7337KB [ 202.232677] kmalloc-1k 3679KB 3685KB [ 202.238074] kmalloc-512 4443KB 4443KB [ 202.243431] kmalloc-256 1723KB 1725KB [ 202.248844] kmalloc-128 680KB 685KB [ 202.254202] kmalloc-96 1992KB 2496KB [ 202.259590] kmalloc-64 1383KB 1384KB [ 202.264935] kmalloc-32 1049KB 1693KB [ 202.270393] kmalloc-192 463KB 952KB [ 202.275785] kmem_cache 172KB 176KB [ 202.281146] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=syz0,mems_allowed=0 [ 202.281208] ,global_oom,task_memcg=/,task=syz-execprog,pid=6027,uid=0 [ 202.296461] Out of memory: Kill process 6027 (syz-execprog) score 1 or sacrifice child [ 202.305647] Killed process 6038 (syz-executor0) total-vm:37440kB, anon-rss:60kB, file-rss:4kB, shmem-rss:0kB [ 202.316573] oom_reaper: reaped process 6038 (syz-executor0), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 202.326655] syz-executor0: page allocation failure: order:0, mode:0x6000c0(GFP_KERNEL), nodemask=(null),cpuset=syz0,mems_allowed=0 [ 202.326801] rsyslogd invoked oom-killer: gfp_mask=0x6200ca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0 [ 202.339034] CPU: 1 PID: 6298 Comm: syz-executor0 Not tainted 4.20.0-rc6-next-20181217+ #172 [ 202.339059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 202.339064] Call Trace: [ 202.339081] dump_stack+0x244/0x39d [ 202.373076] ? dump_stack_print_info.cold.1+0x20/0x20 [ 202.378302] ? kasan_check_write+0x14/0x20 [ 202.382580] warn_alloc.cold.116+0xc3/0x1c9 [ 202.386908] ? zone_watermark_ok_safe+0x3f0/0x3f0 [ 202.391773] ? __ww_mutex_check_waiters+0x160/0x160 [ 202.396792] ? find_next_bit+0x104/0x130 [ 202.400862] __alloc_pages_slowpath+0x2629/0x2dc0 [ 202.405738] ? compat_start_thread+0x80/0x80 [ 202.410176] ? warn_alloc+0x120/0x120 [ 202.413983] ? mark_held_locks+0x130/0x130 [ 202.418231] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 202.422988] ? print_usage_bug+0xc0/0xc0 [ 202.427065] ? print_usage_bug+0xc0/0xc0 [ 202.431130] ? print_usage_bug+0xc0/0xc0 [ 202.435224] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 202.440019] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 202.444610] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 202.450621] ? should_fail+0x22d/0xd01 [ 202.454525] ? mark_held_locks+0xc7/0x130 [ 202.458685] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 202.463797] ? graph_lock+0x270/0x270 [ 202.467611] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 202.472388] ? __lock_is_held+0xb5/0x140 [ 202.476462] ? check_preemption_disabled+0x48/0x280 [ 202.481483] ? lock_release+0xa00/0xa00 [ 202.485481] ? perf_trace_sched_process_exec+0x860/0x860 [ 202.490948] ? __lock_is_held+0xb5/0x140 [ 202.495053] ? __might_sleep+0x95/0x190 [ 202.499069] __alloc_pages_nodemask+0xaed/0xec0 [ 202.503753] ? retint_kernel+0x2d/0x2d [ 202.507692] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 202.512459] ? __alloc_pages_slowpath+0x2dc0/0x2dc0 [ 202.517476] ? vfree_atomic+0xe0/0xe0 [ 202.521291] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 202.526071] ? retint_kernel+0x2d/0x2d [ 202.529985] ? policy_nodemask+0x56/0x1b0 [ 202.534200] ? __sanitizer_cov_trace_const_cmp2+0x19/0x20 [ 202.539761] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 202.545303] alloc_pages_current+0x173/0x350 [ 202.549724] relay_open_buf.part.10+0x2ab/0xb20 [ 202.554400] ? kmem_cache_alloc_trace+0x356/0x740 [ 202.559267] relay_open+0x5e5/0xac0 [ 202.562904] ? relay_open_buf.part.10+0xb20/0xb20 [ 202.567753] ? __debugfs_create_file+0x302/0x400 [ 202.572525] ? debugfs_create_file+0x57/0x70 [ 202.576960] do_blk_trace_setup+0x4fe/0xdb0 [ 202.581285] ? blk_tracer_print_line+0x60/0x60 [ 202.585892] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 202.591441] ? _copy_from_user+0xdf/0x150 [ 202.595645] __blk_trace_setup+0xd5/0x180 [ 202.599793] ? do_blk_trace_setup+0xdb0/0xdb0 [ 202.604333] ? disk_name+0xb0/0x120 [ 202.607967] ? mark_held_locks+0x130/0x130 [ 202.612211] blk_trace_ioctl+0x17a/0x2f0 [ 202.616278] ? blk_trace_startstop+0x70/0x70 [ 202.620697] ? find_held_lock+0x36/0x1c0 [ 202.624766] blkdev_ioctl+0x9e3/0x21a0 [ 202.628662] ? blkpg_ioctl+0xc10/0xc10 [ 202.632554] ? lock_downgrade+0x900/0x900 [ 202.636703] ? check_preemption_disabled+0x48/0x280 [ 202.641724] ? kasan_check_read+0x11/0x20 [ 202.645875] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 202.651154] ? rcu_read_unlock_special+0x370/0x370 [ 202.656109] ? __fget+0x4d1/0x740 [ 202.659604] ? ksys_dup3+0x680/0x680 [ 202.663324] ? __might_fault+0x12b/0x1e0 [ 202.667388] ? lock_downgrade+0x900/0x900 [ 202.671549] block_ioctl+0xee/0x130 [ 202.675181] ? blkdev_fallocate+0x400/0x400 [ 202.679519] do_vfs_ioctl+0x1de/0x1790 [ 202.683419] ? ioctl_preallocate+0x300/0x300 [ 202.687835] ? __fget_light+0x2e9/0x430 [ 202.691816] ? fget_raw+0x20/0x20 [ 202.695272] ? _copy_to_user+0xc8/0x110 [ 202.699293] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 202.704835] ? put_timespec64+0x10f/0x1b0 [ 202.709037] ? nsecs_to_jiffies+0x30/0x30 [ 202.713200] ? do_syscall_64+0x9a/0x820 [ 202.717176] ? do_syscall_64+0x9a/0x820 [ 202.721150] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 202.725737] ? security_file_ioctl+0x94/0xc0 [ 202.730152] ksys_ioctl+0xa9/0xd0 [ 202.733626] __x64_sys_ioctl+0x73/0xb0 [ 202.737525] do_syscall_64+0x1b9/0x820 [ 202.741432] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 202.746817] ? syscall_return_slowpath+0x5e0/0x5e0 [ 202.751749] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 202.756601] ? trace_hardirqs_on_caller+0x310/0x310 [ 202.761641] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 202.766661] ? prepare_exit_to_usermode+0x291/0x3b0 [ 202.771684] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 202.776544] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 202.781737] RIP: 0033:0x457669 [ 202.784940] Code: Bad RIP value. [ 202.788303] RSP: 002b:00007f48ee310c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 202.796011] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457669 [ 202.803300] RDX: 0000000020000200 RSI: 00000000c0481273 RDI: 0000000000000003 [ 202.810565] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 202.817848] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f48ee3116d4 [ 202.825115] R13: 00000000004bec46 R14: 00000000004cf928 R15: 00000000ffffffff [ 202.832445] CPU: 0 PID: 5910 Comm: rsyslogd Not tainted 4.20.0-rc6-next-20181217+ #172 [ 202.839502] Mem-Info: [ 202.840525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 202.842958] active_anon:3707 inactive_anon:196 isolated_anon:0 [ 202.842958] active_file:17 inactive_file:17 isolated_file:0 [ 202.842958] unevictable:0 dirty:0 writeback:0 unstable:0 [ 202.842958] slab_reclaimable:11958 slab_unreclaimable:89922 [ 202.842958] mapped:2 shmem:244 pagetables:299 bounce:0 [ 202.842958] free:17241 free_pcp:186 free_cma:0 [ 202.852267] Call Trace: [ 202.852285] dump_stack+0x244/0x39d [ 202.852303] ? dump_stack_print_info.cold.1+0x20/0x20 [ 202.852390] dump_header+0x253/0x1239 [ 202.889205] Node 0 active_anon:14828kB inactive_anon:784kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 202.890934] ? pagefault_out_of_memory+0x19d/0x19d [ 202.896127] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB 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 [ 202.899889] ? mark_held_locks+0x130/0x130 [ 202.930424] lowmem_reserve[]: 0 2816 6319 6319 [ 202.931336] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 202.961432] Node 0 DMA32 free:28608kB min:30040kB low:37548kB high:45056kB active_anon:8kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2886740kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:256kB local_pcp:248kB free_cma:0kB [ 202.961670] ? __lock_acquire+0x62f/0x4c20 [ 202.966267] lowmem_reserve[]: 0 0 3503 3503 [ 202.971526] ? mem_cgroup_css_online+0x3d0/0x3d0 [ 203.002750] Node 0 Normal free:24448kB min:37376kB low:46720kB high:56064kB active_anon:14820kB inactive_anon:784kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3587560kB mlocked:0kB kernel_stack:6048kB pagetables:1196kB bounce:0kB free_pcp:488kB local_pcp:312kB free_cma:0kB [ 203.003221] ? graph_lock+0x270/0x270 [ 203.007572] lowmem_reserve[]: 0 0 0 0 [ 203.012290] ? print_usage_bug+0xc0/0xc0 [ 203.044702] 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 [ 203.044887] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 203.048694] Node 0 DMA32: 6*4kB (UM) 3*8kB (M) 3*16kB (UM) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 3*256kB (UM) 3*512kB (UM) 3*1024kB (M) 3*2048kB (M) 4*4096kB (M) = 28608kB [ 203.052713] ? find_held_lock+0x36/0x1c0 [ 203.069668] Node 0 Normal: 776*4kB (M) 520*8kB (UME) 259*16kB (M) 138*32kB (UME) 49*64kB (ME) 13*128kB (UM) 7*256kB (UM) 4*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 24464kB [ 203.071740] ? mark_held_locks+0xc7/0x130 [ 203.090672] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 203.091022] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 203.110030] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 203.110396] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 203.119238] 278 total pagecache pages [ 203.124296] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 203.136820] 0 pages in swap cache [ 203.137965] ? trace_hardirqs_on+0xbd/0x310 [ 203.141741] Swap cache stats: add 0, delete 0, find 0/0 [ 203.146302] ? kasan_check_read+0x11/0x20 [ 203.146316] ? ___ratelimit+0x3b4/0x672 [ 203.146331] ? trace_hardirqs_off_caller+0x310/0x310 [ 203.146347] ? trace_hardirqs_on+0x310/0x310 [ 203.149807] Free swap = 0kB [ 203.154117] ? lock_downgrade+0x900/0x900 [ 203.163237] Total swap = 0kB [ 203.163597] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 203.167580] 1965979 pages RAM [ 203.172640] ? ___ratelimit+0x3b9/0x672 [ 203.180719] 0 pages HighMem/MovableOnly [ 203.184173] ? idr_get_free+0xf70/0xf70 [ 203.187210] 343427 pages reserved [ 203.192290] ? find_held_lock+0x36/0x1c0 [ 203.199003] 0 pages cma reserved [ 203.199342] oom_kill_process.cold.27+0x10/0x903 [ 203.222935] ? graph_lock+0x270/0x270 [ 203.226735] ? check_preemption_disabled+0x48/0x280 [ 203.231771] ? kasan_check_read+0x11/0x20 [ 203.235914] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 203.241188] ? oom_evaluate_task+0x540/0x540 [ 203.245607] ? find_held_lock+0x36/0x1c0 [ 203.249679] ? out_of_memory+0xcc5/0x1480 [ 203.253831] ? lock_downgrade+0x900/0x900 [ 203.257977] ? check_preemption_disabled+0x48/0x280 [ 203.262997] ? kasan_check_read+0x11/0x20 [ 203.267149] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 203.272425] ? rcu_read_unlock_special+0x370/0x370 [ 203.277356] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 203.282905] ? oom_evaluate_task+0x302/0x540 [ 203.287339] out_of_memory+0x8ba/0x1480 [ 203.291322] ? oom_killer_disable+0x3a0/0x3a0 [ 203.295827] ? __alloc_pages_slowpath+0xf45/0x2dc0 [ 203.300759] ? __ww_mutex_check_waiters+0x160/0x160 [ 203.305798] __alloc_pages_slowpath+0x2308/0x2dc0 [ 203.310680] ? warn_alloc+0x120/0x120 [ 203.314484] ? find_get_entry+0xaae/0x1120 [ 203.319187] ? filemap_map_pages+0x1a20/0x1a20 [ 203.323774] ? graph_lock+0x270/0x270 [ 203.327610] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 203.333150] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 203.338706] ? should_fail+0x22d/0xd01 [ 203.342602] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 203.347708] ? graph_lock+0x270/0x270 [ 203.351550] ? __lock_is_held+0xb5/0x140 [ 203.355678] ? lock_release+0xa00/0xa00 [ 203.359661] ? perf_trace_sched_process_exec+0x860/0x860 [ 203.365108] ? xa_load+0x2ba/0x460 [ 203.368665] ? lock_downgrade+0x900/0x900 [ 203.372834] ? __might_sleep+0x95/0x190 [ 203.376846] __alloc_pages_nodemask+0xaed/0xec0 [ 203.381531] ? __alloc_pages_slowpath+0x2dc0/0x2dc0 [ 203.386554] ? __page_cache_alloc+0x191/0x5c0 [ 203.391152] ? xa_load+0x2e1/0x460 [ 203.394695] ? xa_clear_mark+0x40/0x40 [ 203.398602] ? graph_lock+0x270/0x270 [ 203.402431] ? graph_lock+0x270/0x270 [ 203.406233] ? graph_lock+0x270/0x270 [ 203.410034] ? __do_page_cache_readahead+0x663/0x810 [ 203.415161] ? find_held_lock+0x36/0x1c0 [ 203.419230] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 203.424877] alloc_pages_current+0x173/0x350 [ 203.429301] __page_cache_alloc+0x38c/0x5c0 [ 203.433627] ? kasan_check_read+0x11/0x20 [ 203.437776] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 203.443073] ? generic_perform_write+0x6a0/0x6a0 [ 203.447849] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 203.453620] ? check_preemption_disabled+0x48/0x280 [ 203.458646] filemap_fault+0x1595/0x25f0 [ 203.462723] ? __lock_page_or_retry+0xa00/0xa00 [ 203.467399] ? mark_held_locks+0x130/0x130 [ 203.471633] ? find_held_lock+0x36/0x1c0 [ 203.475720] ? filemap_map_pages+0xd6b/0x1a20 [ 203.480220] ? lock_downgrade+0x900/0x900 [ 203.484368] ? check_preemption_disabled+0x48/0x280 [ 203.489392] ? kasan_check_read+0x11/0x20 [ 203.493561] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 203.498857] ? rcu_read_unlock_special+0x370/0x370 [ 203.503799] ? filemap_map_pages+0xd92/0x1a20 [ 203.508316] ? find_get_entries_tag+0x1400/0x1400 [ 203.513163] ? __kernel_text_address+0xd/0x40 [ 203.517665] ? unwind_get_return_address+0x61/0xa0 [ 203.522603] ? __save_stack_trace+0x8d/0xf0 [ 203.526936] ? __lock_is_held+0xb5/0x140 [ 203.531002] ? lock_acquire+0x1ed/0x520 [ 203.534985] ? ext4_filemap_fault+0x7a/0xad [ 203.539316] ? lock_release+0xa00/0xa00 [ 203.543291] ? perf_trace_sched_process_exec+0x860/0x860 [ 203.548753] ? __vfs_read+0x117/0xa80 [ 203.552560] ? vfs_read+0x17f/0x3e0 [ 203.556188] ? print_usage_bug+0xc0/0xc0 [ 203.560249] ? print_usage_bug+0xc0/0xc0 [ 203.564326] ? down_read+0x8d/0x120 [ 203.567972] ? ext4_filemap_fault+0x7a/0xad [ 203.572296] ? __down_interruptible+0x700/0x700 [ 203.576976] ext4_filemap_fault+0x82/0xad [ 203.581137] __do_fault+0x100/0x6b0 [ 203.584782] ? do_syslog+0x147b/0x1690 [ 203.588678] ? pmd_devmap_trans_unstable+0x220/0x220 [ 203.593806] ? mark_held_locks+0x130/0x130 [ 203.598059] ? mark_held_locks+0x130/0x130 [ 203.602297] ? do_syslog+0x147b/0x1690 [ 203.606215] ? do_syslog+0x309/0x1690 [ 203.610035] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 203.615573] __handle_mm_fault+0x3e7c/0x5b70 [ 203.619985] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 203.624827] ? find_held_lock+0x36/0x1c0 [ 203.628908] ? graph_lock+0x270/0x270 [ 203.632739] ? graph_lock+0x270/0x270 [ 203.636580] ? find_held_lock+0x36/0x1c0 [ 203.640681] ? handle_mm_fault+0x42a/0xc70 [ 203.644916] ? lock_downgrade+0x900/0x900 [ 203.649061] ? check_preemption_disabled+0x48/0x280 [ 203.654097] ? kasan_check_read+0x11/0x20 [ 203.658261] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 203.663575] ? rcu_read_unlock_special+0x370/0x370 [ 203.668532] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 203.674075] ? check_preemption_disabled+0x48/0x280 [ 203.679101] handle_mm_fault+0x54f/0xc70 [ 203.683203] ? __handle_mm_fault+0x5b70/0x5b70 [ 203.687790] ? find_vma+0x34/0x190 [ 203.691351] __do_page_fault+0x5f6/0xd70 [ 203.695413] ? kernel_write+0x120/0x120 [ 203.699404] do_page_fault+0xf2/0x7e0 [ 203.703213] ? vmalloc_sync_all+0x30/0x30 [ 203.707388] ? error_entry+0x70/0xd0 [ 203.711109] ? trace_hardirqs_off_caller+0xbb/0x310 [ 203.716157] ? trace_hardirqs_on_caller+0xc0/0x310 [ 203.721106] ? syscall_return_slowpath+0x5e0/0x5e0 [ 203.726041] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 203.730892] ? trace_hardirqs_on_caller+0x310/0x310 [ 203.735925] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 203.741393] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 203.746415] ? prepare_exit_to_usermode+0x291/0x3b0 [ 203.751435] ? page_fault+0x8/0x30 [ 203.754981] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 203.759963] ? page_fault+0x8/0x30 [ 203.763513] page_fault+0x1e/0x30 [ 203.767004] RIP: 0033:0x7f339a33b1fd [ 203.770725] Code: Bad RIP value. [ 203.774088] RSP: 002b:00007f33978dae30 EFLAGS: 00010293 [ 203.779447] RAX: 0000000000000071 RBX: 0000000002257650 RCX: 00007f339a33b1fd [ 203.786713] RDX: 0000000000000fff RSI: 00007f339910f5a0 RDI: 0000000000000004 [ 203.793986] RBP: 0000000000000000 R08: 0000000002242260 R09: 0000000000000000 [ 203.801252] R10: 6b205d3931343438 R11: 0000000000000293 R12: 000000000065e420 [ 203.808534] R13: 00007f33978db9c0 R14: 00007f339a980040 R15: 0000000000000003 [ 203.819840] Mem-Info: [ 203.824136] active_anon:3686 inactive_anon:196 isolated_anon:0 [ 203.824136] active_file:17 inactive_file:117 isolated_file:0 [ 203.824136] unevictable:0 dirty:0 writeback:0 unstable:0 [ 203.824136] slab_reclaimable:11956 slab_unreclaimable:89906 [ 203.824136] mapped:27 shmem:244 pagetables:288 bounce:0 [ 203.824136] free:242211 free_pcp:577 free_cma:0 [ 203.858722] Node 0 active_anon:14744kB inactive_anon:784kB active_file:68kB inactive_file:768kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 203.887367] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB 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 [ 203.914923] lowmem_reserve[]: 0 2816 6319 6319 [ 203.920651] Node 0 DMA32 free:1069576kB min:30040kB low:37548kB high:45056kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:1200kB unevictable:0kB writepending:0kB present:3129332kB managed:2886740kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:1612kB local_pcp:340kB free_cma:0kB [ 203.950042] lowmem_reserve[]: 0 0 3503 3503 [ 203.954470] Node 0 Normal free:24496kB min:37376kB low:46720kB high:56064kB active_anon:14744kB inactive_anon:784kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3587560kB mlocked:0kB kernel_stack:6048kB pagetables:1152kB bounce:0kB free_pcp:516kB local_pcp:204kB free_cma:0kB [ 203.985207] lowmem_reserve[]: 0 0 0 0 [ 203.990127] 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 [ 204.004904] Node 0 DMA32: 3*4kB (UM) 2*8kB (UM) 1*16kB (M) 3*32kB (UM) 2*64kB (UM) 3*128kB (UM) 2*256kB (U) 2*512kB (U) 6*1024kB (UM) 4*2048kB (UM) 287*4096kB (UM) = 1192076kB [ 204.022166] Node 0 Normal: 776*4kB (M) 524*8kB (UME) 259*16kB (M) 138*32kB (UME) 49*64kB (ME) 13*128kB (UM) 7*256kB (UM) 4*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 24496kB [ 204.037569] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 204.047063] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 204.055683] 722 total pagecache pages [ 204.059500] 0 pages in swap cache [ 204.062977] Swap cache stats: add 0, delete 0, find 0/0 [ 204.068378] Free swap = 0kB [ 204.071422] Total swap = 0kB [ 204.074436] 1965979 pages RAM [ 204.078375] 0 pages HighMem/MovableOnly [ 204.082380] 343427 pages reserved [ 204.085872] 0 pages cma reserved [ 204.089314] Unreclaimable slab info: [ 204.094327] Name Used Total [ 204.100809] pid_2 32KB 36KB [ 204.106490] bio-3 0KB 3KB [ 204.111889] TIPC 2KB 7KB [ 204.117286] SCTPv6 4KB 4KB [ 204.122662] DCCPv6 4KB 7KB [ 204.128049] DCCP 4KB 6KB [ 204.133449] bridge_fdb_cache 2KB 3KB [ 204.138892] fib6_nodes 14KB 20KB [ 204.144282] ip6_dst_cache 66KB 67KB [ 204.149691] RAWv6 19KB 19KB [ 204.155053] UDPv6 14KB 14KB [ 204.160448] TCPv6 8KB 11KB [ 204.165874] nf_conntrack 2KB 3KB [ 204.171271] sd_ext_cdb 0KB 3KB [ 204.176683] scsi_sense_cache 1056KB 1060KB [ 204.182045] virtio_scsi_cmd 16KB 16KB [ 204.187500] sgpool-128 8KB 8KB [ 204.192883] sgpool-64 4KB 6KB [ 204.198272] sgpool-32 2KB 7KB [ 204.203634] sgpool-16 1KB 3KB [ 204.209955] sgpool-8 0KB 3KB [ 204.215359] mqueue_inode_cache 2KB 7KB [ 204.220817] bio_post_read_ctx 14KB 15KB [ 204.226244] bio-2 14KB 15KB [ 204.231630] jfs_mp 7KB 7KB [ 204.237060] nfs_commit_data 3KB 3KB [ 204.242437] nfs_write_data 32KB 32KB [ 204.247871] ext4_system_zone 0KB 3KB [ 204.253230] bio_post_read_ctx 14KB 15KB [ 204.258655] bio-1 1KB 3KB [ 204.264054] pid_namespace 0KB 3KB [ 204.269537] rpc_buffers 17KB 19KB [ 204.274902] rpc_tasks 2KB 3KB [ 204.280297] UNIX 433KB 435KB [ 204.285698] tcp_bind_bucket 0KB 4KB [ 204.291065] ip_fib_trie 2KB 3KB [ 204.296456] ip_fib_alias 9KB 11KB [ 204.301819] ip_dst_cache 3KB 8KB [ 204.307221] RAW 11KB 14KB [ 204.312584] UDP 34KB 39KB [ 204.317992] request_sock_TCP 0KB 3KB [ 204.323359] TCP 5KB 11KB [ 204.328846] hugetlbfs_inode_cache 2KB 7KB [ 204.334560] fscache_cookie_jar 1KB 3KB [ 204.341159] eventpoll_pwq 10KB 19KB [ 204.346647] eventpoll_epi 19KB 23KB [ 204.352014] inotify_inode_mark 6KB 11KB [ 204.357547] request_queue 135KB 147KB [ 204.362914] blkdev_ioc 30KB 30KB [ 204.368375] bio-0 442KB 442KB [ 204.373738] biovec-max 1361KB 1361KB [ 204.379182] biovec-64 291KB 291KB [ 204.384543] biovec-16 26KB 26KB [ 204.389994] bio_integrity_payload 1KB 3KB [ 204.395843] khugepaged_mm_slot 0KB 3KB [ 204.401299] uid_cache 1KB 4KB [ 204.406747] dmaengine-unmap-256 2KB 6KB [ 204.412298] dmaengine-unmap-128 1KB 3KB [ 204.417873] dmaengine-unmap-16 0KB 4KB [ 204.423324] dmaengine-unmap-2 0KB 3KB [ 204.428785] audit_buffer 0KB 3KB [ 204.434179] skbuff_fclone_cache 133KB 135KB [ 204.439759] skbuff_head_cache 1780KB 1781KB [ 204.445123] configfs_dir_cache 0KB 4KB [ 204.450633] file_lock_cache 178KB 180KB [ 204.456036] file_lock_ctx 1KB 3KB [ 204.461401] fsnotify_mark_connector 3KB 3KB [ 204.468275] net_namespace 8KB 8KB [ 204.473644] shmem_inode_cache 4524KB 4527KB [ 204.479134] task_delay_info 378KB 476KB [ 204.484530] taskstats 1KB 3KB [ 204.489930] proc_dir_entry 320KB 322KB [ 204.495295] pde_opener 18KB 27KB [ 204.500697] seq_file 185KB 767KB [ 204.506093] sigqueue 185KB 208KB [ 204.511454] kernfs_node_cache 8032KB 8036KB [ 204.516853] mnt_cache 30KB 32KB [ 204.522235] filp 7015KB 7743KB [ 204.527638] names_cache 92284KB 92322KB [ 204.533018] iint_cache 73KB 75KB [ 204.538430] key_jar 3KB 7KB [ 204.543794] uts_namespace 0KB 3KB [ 204.549194] nsproxy 0KB 3KB [ 204.554564] vm_area_struct 17811KB 18547KB [ 204.559959] mm_struct 4704KB 5135KB [ 204.565353] fs_cache 436KB 480KB [ 204.570716] files_cache 1701KB 1792KB [ 204.576132] signal_cache 2699KB 2990KB [ 204.581494] sighand_cache 420KB 471KB [ 204.586906] task_struct 11143KB 11199KB [ 204.592288] cred_jar 2399KB 2580KB [ 204.598602] anon_vma_chain 8340KB 9387KB [ 204.603968] anon_vma 121KB 373KB [ 204.609363] pid 242KB 372KB [ 204.614723] Acpi-Operand 106KB 162KB [ 204.620140] Acpi-Namespace 19KB 23KB [ 204.625556] numa_policy 0KB 3KB [ 204.630924] trace_event_file 262KB 262KB [ 204.636337] ftrace_event_field 377KB 378KB [ 204.641798] pool_workqueue 72KB 76KB [ 204.647220] task_group 0KB 3KB [ 204.652595] debug_objects_cache 909KB 935KB [ 204.658173] page->ptl 3006KB 3372KB [ 204.663573] kmalloc-2M 2050KB 2050KB [ 204.668990] kmalloc-512k 2056KB 2056KB [ 204.674351] kmalloc-256k 516KB 516KB [ 204.679769] kmalloc-128k 520KB 520KB [ 204.685165] kmalloc-64k 594KB 594KB [ 204.690571] kmalloc-32k 16632KB 16632KB [ 204.695984] kmalloc-16k 1485KB 1485KB [ 204.701345] kmalloc-8k 1039KB 1039KB [ 204.706766] kmalloc-4k 7739KB 7777KB [ 204.712127] kmalloc-2k 7333KB 7337KB [ 204.717579] kmalloc-1k 3674KB 3685KB [ 204.722980] kmalloc-512 4436KB 4443KB [ 204.729551] kmalloc-256 1721KB 1725KB [ 204.734949] kmalloc-128 679KB 685KB [ 204.740362] kmalloc-96 1989KB 2496KB [ 204.745757] kmalloc-64 1381KB 1384KB [ 204.751118] kmalloc-32 1047KB 1693KB [ 204.756650] kmalloc-192 462KB 952KB [ 204.762013] kmem_cache 171KB 176KB [ 204.767442] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0 [ 204.767625] ,global_oom,task_memcg=/,task=syz-execprog,pid=6027,uid=0 [ 204.782740] Out of memory: Kill process 6027 (syz-execprog) score 1 or sacrifice child [ 204.792450] Killed process 6027 (syz-execprog) total-vm:40916kB, anon-rss:6884kB, file-rss:0kB, shmem-rss:0kB [ 204.803374] syz-execprog (6031) used greatest stack depth: 12688 bytes left [ 204.810544] syz-execprog (6032) used greatest stack depth: 12488 bytes left