[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.54' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 37.080558] FAULT_INJECTION: forcing a failure. [ 37.080558] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 37.092617] CPU: 0 PID: 8106 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 [ 37.100571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 37.109906] Call Trace: [ 37.112482] dump_stack+0x1fc/0x2ef [ 37.116097] should_fail.cold+0xa/0xf [ 37.119882] ? lock_acquire+0x170/0x3c0 [ 37.123840] ? setup_fault_attr+0x200/0x200 [ 37.128155] __alloc_pages_nodemask+0x239/0x2890 [ 37.132892] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 37.137984] ? try_to_wake_up+0x733/0x1050 [ 37.142209] ? __lock_acquire+0x6de/0x3ff0 [ 37.146428] ? n_tty_write+0xa0e/0xff0 [ 37.150301] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 37.155126] ? lock_downgrade+0x720/0x720 [ 37.159254] ? mark_held_locks+0xf0/0xf0 [ 37.163314] ? n_tty_write+0xa91/0xff0 [ 37.167201] ? lock_downgrade+0x720/0x720 [ 37.171337] ? __lock_acquire+0x6de/0x3ff0 [ 37.175556] alloc_pages_vma+0xf2/0x780 [ 37.179518] wp_page_copy+0x219/0x2c40 [ 37.183389] ? _vm_normal_page+0x132/0x510 [ 37.187616] ? follow_pte_pmd+0x60/0x60 [ 37.191577] do_wp_page+0x2d4/0x2210 [ 37.195276] ? finish_mkwrite_fault+0x640/0x640 [ 37.199926] ? __handle_mm_fault+0x15f6/0x41c0 [ 37.204492] ? mark_held_locks+0xf0/0xf0 [ 37.208537] __handle_mm_fault+0x258b/0x41c0 [ 37.212930] ? kernel_read+0x110/0x110 [ 37.216797] ? vm_insert_page+0x9c0/0x9c0 [ 37.220927] ? apparmor_getprocattr+0x11e0/0x11e0 [ 37.225763] ? check_preemption_disabled+0x41/0x280 [ 37.230764] handle_mm_fault+0x436/0xb10 [ 37.234810] __do_page_fault+0x68e/0xd60 [ 37.238866] ? trace_hardirqs_off_caller+0x6e/0x210 [ 37.243866] ? spurious_fault+0x840/0x840 [ 37.247996] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.252824] ? page_fault+0x8/0x30 [ 37.256355] page_fault+0x1e/0x30 [ 37.259794] RIP: 0033:0x7fa5c6d06ff5 [ 37.263487] Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c ae 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f [ 37.282371] RSP: 002b:00007ffe3dc330b0 EFLAGS: 00010246 [ 37.287714] RAX: 0000000000000000 RBX: 00007fa5c6daf140 RCX: 0000000000000001 [ 37.294963] RDX: 0000000000000001 RSI: 00007fa5c6daf140 RDI: 0000000000000000 [ 37.302211] RBP: 0000000000000000 R08: 0000000000000001 R09: 00007ffe3dc33090 [ 37.309461] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 37.316711] R13: 0000000000000001 R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 [ 37.334029] syz-executor533 invoked oom-killer: gfp_mask=0x0(), nodemask=(null), order=0, oom_score_adj=1000 [ 37.344371] syz-executor533 cpuset=/ mems_allowed=0-1 [ 37.349658] CPU: 1 PID: 8106 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 [ 37.357520] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 37.366854] Call Trace: [ 37.369423] dump_stack+0x1fc/0x2ef [ 37.373034] dump_header+0x15d/0xc3f [ 37.376732] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 37.381816] ? ___ratelimit+0x319/0x590 [ 37.385778] oom_kill_process.cold+0x10/0x692 [ 37.390261] ? check_preemption_disabled+0x41/0x280 [ 37.395265] ? has_intersects_mems_allowed+0x1d6/0x290 [ 37.400524] out_of_memory+0x1072/0x1390 [ 37.404568] ? lock_acquire+0x170/0x3c0 [ 37.408525] ? oom_killer_disable+0x270/0x270 [ 37.413002] ? mutex_trylock+0x15f/0x1a0 [ 37.417049] pagefault_out_of_memory+0x102/0x120 [ 37.421787] ? out_of_memory+0x1390/0x1390 [ 37.426008] ? lock_downgrade+0x720/0x720 [ 37.430140] mm_fault_error+0x106/0x390 [ 37.434098] __do_page_fault+0xc34/0xd60 [ 37.438157] ? trace_hardirqs_off_caller+0x6e/0x210 [ 37.443155] ? spurious_fault+0x840/0x840 [ 37.447285] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.452114] ? page_fault+0x8/0x30 [ 37.455653] page_fault+0x1e/0x30 [ 37.459106] RIP: 0033:0x7fa5c6d06ff5 [ 37.462809] Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c ae 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f [ 37.481814] RSP: 002b:00007ffe3dc330b0 EFLAGS: 00010246 [ 37.487157] RAX: 0000000000000000 RBX: 00007fa5c6daf140 RCX: 0000000000000001 [ 37.494406] RDX: 0000000000000001 RSI: 00007fa5c6daf140 RDI: 0000000000000000 [ 37.501655] RBP: 0000000000000000 R08: 0000000000000001 R09: 00007ffe3dc33090 [ 37.508905] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 37.516155] R13: 0000000000000001 R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 [ 37.523836] Mem-Info: [ 37.526341] active_anon:2986 inactive_anon:4714 isolated_anon:0 [ 37.526341] active_file:5214 inactive_file:11949 isolated_file:0 [ 37.526341] unevictable:0 dirty:7832 writeback:0 unstable:0 [ 37.526341] slab_reclaimable:16161 slab_unreclaimable:112887 [ 37.526341] mapped:3728 shmem:4898 pagetables:338 bounce:0 [ 37.526341] free:1530874 free_pcp:541 free_cma:0 [ 37.560289] Node 0 active_anon:11944kB inactive_anon:18856kB active_file:20732kB inactive_file:47796kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:14912kB dirty:31320kB writeback:0kB shmem:19592kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 37.588757] Node 1 active_anon:0kB inactive_anon:0kB active_file:124kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:8kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 37.614610] Node 0 DMA free:15908kB min:204kB low:252kB high:300kB 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 [ 37.640832] lowmem_reserve[]: 0 2693 2695 2695 2695 [ 37.645959] Node 0 DMA32 free:2066796kB min:35996kB low:44992kB high:53988kB active_anon:11944kB inactive_anon:18856kB active_file:20732kB inactive_file:47796kB unevictable:0kB writepending:31320kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:6528kB pagetables:1352kB bounce:0kB free_pcp:2164kB local_pcp:972kB free_cma:0kB [ 37.676098] lowmem_reserve[]: 0 0 1 1 1 [ 37.680076] Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 37.706051] lowmem_reserve[]: 0 0 0 0 0 [ 37.710039] Node 1 Normal free:4039432kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:124kB inactive_file:0kB unevictable:0kB writepending:8kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 37.737983] lowmem_reserve[]: 0 0 0 0 0 [ 37.741964] 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 [ 37.755619] Node 0 DMA32: 1349*4kB (UE) 221*8kB (U) 312*16kB (UE) 95*32kB (UME) 23*64kB (UME) 6*128kB (UM) 5*256kB (UME) 3*512kB (UE) 4*1024kB (UME) 2*2048kB (ME) 498*4096kB (M) = 2068252kB [ 37.772800] Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB [ 37.783898] Node 1 Normal: 96*4kB (UME) 397*8kB (UM) 292*16kB (UE) 75*32kB (UME) 30*64kB (UME) 18*128kB (UM) 11*256kB (UME) 7*512kB (UME) 2*1024kB (M) 1*2048kB (U) 980*4096kB (M) = 4039432kB [ 37.801124] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 37.810043] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 37.818702] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 37.827644] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 37.836294] 22061 total pagecache pages [ 37.840259] 0 pages in swap cache [ 37.843760] Swap cache stats: add 0, delete 0, find 0/0 [ 37.849123] Free swap = 0kB [ 37.852126] Total swap = 0kB [ 37.855401] 2097051 pages RAM [ 37.858520] 0 pages HighMem/MovableOnly [ 37.862467] 369649 pages reserved [ 37.865979] 0 pages cma reserved [ 37.869377] Unreclaimable slab info: [ 37.873205] Name Used Total [ 37.878935] TIPC 1KB 7KB [ 37.884485] SCTPv6 2KB 6KB [ 37.889854] DCCPv6 2KB 7KB [ 37.895283] DCCP 2KB 7KB [ 37.900697] RXRPC 1KB 6KB [ 37.906128] rxrpc_call_jar 11KB 15KB [ 37.911492] fib6_nodes 0KB 4KB [ 37.916915] ip6_dst_cache 1KB 3KB [ 37.922275] RAWv6 10KB 20KB [ 37.927708] UDPv6 13KB 15KB [ 37.933068] TCPv6 6KB 6KB [ 37.938511] nf_conntrack 22KB 22KB [ 37.944156] t10_alua_lu_gp_cache 0KB 3KB [ 37.949774] sd_ext_cdb 0KB 7KB [ 37.955377] scsi_sense_cache 1056KB 1072KB [ 37.960742] virtio_scsi_cmd 16KB 16KB [ 37.966190] sgpool-128 8KB 8KB [ 37.971550] sgpool-64 4KB 12KB [ 37.976980] sgpool-32 2KB 15KB [ 37.982336] sgpool-16 1KB 7KB [ 37.987941] sgpool-8 0KB 7KB [ 37.993386] mqueue_inode_cache 1KB 7KB [ 37.998832] bio_post_read_ctx 14KB 15KB [ 38.004307] bio-2 14KB 15KB [ 38.009665] jfs_mp 7KB 7KB [ 38.015111] cifs_small_rq 15KB 16KB [ 38.020469] cifs_request 67KB 67KB [ 38.025900] cifs_mpx_ids 0KB 7KB [ 38.031266] nfs_commit_data 3KB 14KB [ 38.036694] nfs_write_data 34KB 44KB [ 38.042074] ext4_system_zone 1KB 7KB [ 38.047529] bio-1 1KB 7KB [ 38.052894] rpc_buffers 17KB 25KB [ 38.058374] rpc_tasks 2KB 7KB [ 38.063827] UNIX 416KB 416KB [ 38.069181] tcp_bind_bucket 0KB 4KB [ 38.074614] ip_fib_trie 0KB 3KB [ 38.079976] ip_fib_alias 0KB 3KB [ 38.085404] ip_dst_cache 3KB 8KB [ 38.090768] RAW 6KB 7KB [ 38.096199] UDP 25KB 40KB [ 38.101560] request_sock_TCP 0KB 3KB [ 38.107006] TCP 11KB 11KB [ 38.112375] hugetlbfs_inode_cache 3KB 15KB [ 38.118160] fscache_cookie_jar 1KB 11KB [ 38.123690] eventpoll_pwq 51KB 99KB [ 38.129038] eventpoll_epi 86KB 161KB [ 38.134539] inotify_inode_mark 6KB 11KB [ 38.139988] request_queue 230KB 339KB [ 38.145419] blkdev_requests 1KB 3KB [ 38.150776] blkdev_ioc 4KB 15KB [ 38.156349] bio-0 107KB 198KB [ 38.161705] biovec-max 1237KB 1287KB [ 38.167141] biovec-64 47KB 86KB [ 38.172496] biovec-16 3KB 18KB [ 38.178059] bio_integrity_payload 1KB 8KB [ 38.183843] khugepaged_mm_slot 0KB 3KB [ 38.189281] uid_cache 1KB 4KB [ 38.194715] dmaengine-unmap-2 0KB 3KB [ 38.200074] skbuff_fclone_cache 318KB 318KB [ 38.205681] skbuff_head_cache 1904KB 1905KB [ 38.211036] configfs_dir_cache 3KB 7KB [ 38.216601] file_lock_cache 100KB 106KB [ 38.221962] file_lock_ctx 9KB 15KB [ 38.227486] fsnotify_mark_connector 2KB 3KB [ 38.233444] shmem_inode_cache 7782KB 7785KB [ 38.238796] task_delay_info 123KB 438KB [ 38.244219] taskstats 0KB 3KB [ 38.249572] proc_dir_entry 302KB 307KB [ 38.254995] pde_opener 44KB 77KB [ 38.260347] seq_file 458KB 775KB [ 38.265769] sigqueue 28KB 74KB [ 38.271124] kernfs_node_cache 9950KB 9961KB [ 38.276547] mnt_cache 69KB 84KB [ 38.281901] filp 9883KB 9885KB [ 38.287327] names_cache 175801KB 175822KB [ 38.292686] iint_cache 83KB 83KB [ 38.298127] key_jar 4KB 7KB [ 38.303683] nsproxy 0KB 3KB [ 38.309035] vm_area_struct 2142KB 2730KB [ 38.314458] mm_struct 248KB 494KB [ 38.319910] fs_cache 120KB 348KB [ 38.325349] files_cache 240KB 607KB [ 38.330706] signal_cache 508KB 1365KB [ 38.336143] sighand_cache 555KB 672KB [ 38.341501] task_struct 1799KB 1799KB [ 38.346941] cred_jar 757KB 1984KB [ 38.352292] anon_vma_chain 767KB 1102KB [ 38.357716] anon_vma 210KB 331KB [ 38.363314] pid 85KB 336KB [ 38.368662] Acpi-Operand 158KB 202KB [ 38.374094] Acpi-ParseExt 8KB 11KB [ 38.379457] Acpi-Parse 41KB 55KB [ 38.384898] Acpi-State 52KB 74KB [ 38.390253] Acpi-Namespace 20KB 27KB [ 38.395718] numa_policy 0KB 3KB [ 38.401080] debug_objects_cache 654KB 683KB [ 38.406692] trace_event_file 297KB 298KB [ 38.412051] ftrace_event_field 398KB 401KB [ 38.417581] pool_workqueue 79KB 84KB [ 38.422939] page->ptl 214KB 553KB [ 38.428402] kmalloc-2097152 2050KB 2050KB [ 38.433861] kmalloc-524288 2056KB 2056KB [ 38.439217] kmalloc-262144 1290KB 1290KB [ 38.444647] kmalloc-131072 650KB 650KB [ 38.450008] kmalloc-65536 264KB 330KB [ 38.455443] kmalloc-32768 660KB 660KB [ 38.460807] kmalloc-16384 247KB 330KB [ 38.466244] kmalloc-8192 1105KB 1146KB [ 38.471605] kmalloc-4096 11496KB 11555KB [ 38.477032] kmalloc-2048 6345KB 6349KB [ 38.482392] kmalloc-1024 3265KB 3362KB [ 38.487826] kmalloc-512 3271KB 5122KB [ 38.493268] kmalloc-256 1961KB 2418KB [ 38.498623] kmalloc-128 458KB 492KB [ 38.504045] kmalloc-96 2474KB 2492KB [ 38.509407] kmalloc-64 2361KB 2448KB [ 38.514844] kmalloc-32 1028KB 1866KB [ 38.520271] kmalloc-192 1052KB 1876KB [ 38.525714] kmem_cache 177KB 183KB executing program [ 38.531073] Out of memory (oom_kill_allocating_task): Kill process 8106 (syz-executor533) score 0 or sacrifice child [ 38.541993] Killed process 8106 (syz-executor533) total-vm:17440kB, anon-rss:2100kB, file-rss:0kB, shmem-rss:0kB [ 38.553781] oom_reaper: reaped process 8106 (syz-executor533), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 38.568538] FAULT_INJECTION: forcing a failure. [ 38.568538] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 38.580464] CPU: 0 PID: 8107 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 [ 38.588332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 38.597665] Call Trace: [ 38.600241] dump_stack+0x1fc/0x2ef [ 38.603851] should_fail.cold+0xa/0xf [ 38.607632] ? lock_acquire+0x170/0x3c0 [ 38.611589] ? setup_fault_attr+0x200/0x200 [ 38.615904] __alloc_pages_nodemask+0x239/0x2890 [ 38.620642] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 38.625723] ? try_to_wake_up+0x733/0x1050 [ 38.629942] ? __lock_acquire+0x6de/0x3ff0 [ 38.634169] ? n_tty_write+0xa0e/0xff0 [ 38.638042] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 38.642865] ? lock_downgrade+0x720/0x720 [ 38.646993] ? mark_held_locks+0xf0/0xf0 [ 38.651044] ? n_tty_write+0xa91/0xff0 [ 38.654914] ? lock_downgrade+0x720/0x720 [ 38.659044] ? __lock_acquire+0x6de/0x3ff0 [ 38.663267] alloc_pages_vma+0xf2/0x780 [ 38.667230] wp_page_copy+0x219/0x2c40 [ 38.671105] ? _vm_normal_page+0x132/0x510 [ 38.675322] ? follow_pte_pmd+0x60/0x60 [ 38.679281] do_wp_page+0x2d4/0x2210 [ 38.682988] ? finish_mkwrite_fault+0x640/0x640 [ 38.687641] ? __handle_mm_fault+0x15f6/0x41c0 [ 38.692207] ? mark_held_locks+0xf0/0xf0 [ 38.696253] __handle_mm_fault+0x258b/0x41c0 [ 38.700645] ? kernel_read+0x110/0x110 [ 38.704514] ? vm_insert_page+0x9c0/0x9c0 [ 38.708645] ? apparmor_getprocattr+0x11e0/0x11e0 [ 38.713480] ? check_preemption_disabled+0x41/0x280 [ 38.718483] handle_mm_fault+0x436/0xb10 [ 38.722532] __do_page_fault+0x68e/0xd60 [ 38.726579] ? trace_hardirqs_off_caller+0x6e/0x210 [ 38.731578] ? spurious_fault+0x840/0x840 [ 38.735707] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.740535] ? page_fault+0x8/0x30 [ 38.744070] page_fault+0x1e/0x30 [ 38.747504] RIP: 0033:0x7fa5c6d06ff5 [ 38.751198] Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c ae 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f [ 38.770082] RSP: 002b:00007ffe3dc330b0 EFLAGS: 00010246 [ 38.775426] RAX: 0000000000000000 RBX: 00007fa5c6daf140 RCX: 0000000000000001 [ 38.782675] RDX: 0000000000000001 RSI: 00007fa5c6daf140 RDI: 0000000000000000 [ 38.789924] RBP: 0000000000000000 R08: 0000000000000001 R09: 00007ffe3dc33090 [ 38.797175] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 38.804427] R13: 0000000000000001 R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 [ 38.811868] syz-executor533 invoked oom-killer: gfp_mask=0x0(), nodemask=(null), order=0, oom_score_adj=1000 [ 38.821954] syz-executor533 cpuset=/ mems_allowed=0-1 [ 38.827286] CPU: 0 PID: 8107 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 [ 38.835167] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 38.844501] Call Trace: [ 38.847077] dump_stack+0x1fc/0x2ef [ 38.850687] dump_header+0x15d/0xc3f [ 38.854387] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 38.859474] ? ___ratelimit+0x319/0x590 [ 38.863435] oom_kill_process.cold+0x10/0x692 [ 38.867915] ? check_preemption_disabled+0x41/0x280 [ 38.872915] ? has_intersects_mems_allowed+0x1d6/0x290 [ 38.878174] out_of_memory+0x1072/0x1390 [ 38.882218] ? lock_acquire+0x170/0x3c0 [ 38.886175] ? oom_killer_disable+0x270/0x270 [ 38.890658] ? mutex_trylock+0x15f/0x1a0 [ 38.894704] pagefault_out_of_memory+0x102/0x120 [ 38.899443] ? out_of_memory+0x1390/0x1390 [ 38.903662] ? lock_downgrade+0x720/0x720 [ 38.907801] mm_fault_error+0x106/0x390 [ 38.911759] __do_page_fault+0xc34/0xd60 [ 38.915811] ? trace_hardirqs_off_caller+0x6e/0x210 [ 38.920809] ? spurious_fault+0x840/0x840 [ 38.924944] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.929772] ? page_fault+0x8/0x30 [ 38.933296] page_fault+0x1e/0x30 [ 38.936729] RIP: 0033:0x7fa5c6d06ff5 [ 38.940424] Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c ae 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f [ 38.959305] RSP: 002b:00007ffe3dc330b0 EFLAGS: 00010246 [ 38.964645] RAX: 0000000000000000 RBX: 00007fa5c6daf140 RCX: 0000000000000001 [ 38.971897] RDX: 0000000000000001 RSI: 00007fa5c6daf140 RDI: 0000000000000000 [ 38.979146] RBP: 0000000000000000 R08: 0000000000000001 R09: 00007ffe3dc33090 [ 38.986393] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 38.993646] R13: 0000000000000001 R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 [ 39.001697] Mem-Info: [ 39.004238] active_anon:2989 inactive_anon:4714 isolated_anon:0 [ 39.004238] active_file:5339 inactive_file:11849 isolated_file:0 [ 39.004238] unevictable:0 dirty:7844 writeback:0 unstable:0 [ 39.004238] slab_reclaimable:16162 slab_unreclaimable:113035 [ 39.004238] mapped:3745 shmem:4898 pagetables:338 bounce:0 [ 39.004238] free:1530780 free_pcp:485 free_cma:0 [ 39.038157] Node 0 active_anon:11956kB inactive_anon:18856kB active_file:21232kB inactive_file:47396kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:14980kB dirty:31368kB writeback:0kB shmem:19592kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 39.066554] Node 1 active_anon:0kB inactive_anon:0kB active_file:124kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:8kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 39.092410] Node 0 DMA free:15908kB min:204kB low:252kB high:300kB 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 [ 39.118630] lowmem_reserve[]: 0 2693 2695 2695 2695 [ 39.123718] Node 0 DMA32 free:2067980kB min:35996kB low:44992kB high:53988kB active_anon:11956kB inactive_anon:18856kB active_file:21232kB inactive_file:47396kB unevictable:0kB writepending:31368kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:6528kB pagetables:1352kB bounce:0kB free_pcp:1936kB local_pcp:1020kB free_cma:0kB [ 39.153913] lowmem_reserve[]: 0 0 1 1 1 [ 39.157890] Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 39.183886] lowmem_reserve[]: 0 0 0 0 0 [ 39.187868] Node 1 Normal free:4039432kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:124kB inactive_file:0kB unevictable:0kB writepending:8kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 39.215631] lowmem_reserve[]: 0 0 0 0 0 [ 39.219627] 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 [ 39.233276] Node 0 DMA32: 1349*4kB (UE) 23*8kB (U) 349*16kB (UE) 102*32kB (UME) 25*64kB (UME) 6*128kB (UM) 5*256kB (UME) 3*512kB (UE) 4*1024kB (UME) 2*2048kB (ME) 498*4096kB (M) = 2067612kB [ 39.250384] Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB [ 39.261503] Node 1 Normal: 96*4kB (UME) 397*8kB (UM) 292*16kB (UE) 75*32kB (UME) 30*64kB (UME) 18*128kB (UM) 11*256kB (UME) 7*512kB (UME) 2*1024kB (M) 1*2048kB (U) 980*4096kB (M) = 4039432kB [ 39.278741] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 39.287654] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 39.296288] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 39.305179] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 39.313807] 22082 total pagecache pages [ 39.317772] 0 pages in swap cache [ 39.321202] Swap cache stats: add 0, delete 0, find 0/0 [ 39.326607] Free swap = 0kB [ 39.329618] Total swap = 0kB [ 39.332684] 2097051 pages RAM [ 39.335775] 0 pages HighMem/MovableOnly [ 39.339724] 369649 pages reserved [ 39.343220] 0 pages cma reserved [ 39.346576] Unreclaimable slab info: [ 39.350268] Name Used Total [ 39.355930] TIPC 1KB 7KB [ 39.361291] SCTPv6 2KB 6KB [ 39.366715] DCCPv6 2KB 7KB [ 39.372068] DCCP 2KB 7KB [ 39.377503] RXRPC 1KB 6KB [ 39.382932] rxrpc_call_jar 11KB 15KB [ 39.388290] fib6_nodes 0KB 4KB [ 39.393700] ip6_dst_cache 1KB 3KB [ 39.399069] RAWv6 10KB 20KB [ 39.404490] UDPv6 13KB 15KB [ 39.409849] TCPv6 6KB 6KB [ 39.415272] nf_conntrack 22KB 22KB [ 39.420670] t10_alua_lu_gp_cache 0KB 3KB [ 39.426356] sd_ext_cdb 0KB 7KB [ 39.431711] scsi_sense_cache 1056KB 1072KB [ 39.437130] virtio_scsi_cmd 16KB 16KB [ 39.442494] sgpool-128 8KB 8KB [ 39.447918] sgpool-64 4KB 12KB [ 39.453333] sgpool-32 2KB 15KB [ 39.458713] sgpool-16 1KB 7KB [ 39.464127] sgpool-8 0KB 7KB [ 39.469486] mqueue_inode_cache 1KB 7KB [ 39.474978] bio_post_read_ctx 14KB 15KB [ 39.480371] bio-2 14KB 15KB [ 39.485788] jfs_mp 7KB 7KB [ 39.491161] cifs_small_rq 15KB 16KB [ 39.496569] cifs_request 67KB 67KB [ 39.501929] cifs_mpx_ids 0KB 7KB [ 39.507373] nfs_commit_data 3KB 14KB [ 39.512792] nfs_write_data 34KB 44KB [ 39.518183] ext4_system_zone 1KB 7KB [ 39.523615] bio-1 1KB 7KB [ 39.528974] rpc_buffers 17KB 25KB [ 39.534386] rpc_tasks 2KB 7KB [ 39.539747] UNIX 416KB 416KB [ 39.545166] tcp_bind_bucket 0KB 4KB [ 39.550524] ip_fib_trie 0KB 3KB [ 39.555940] ip_fib_alias 0KB 3KB [ 39.561297] ip_dst_cache 3KB 8KB [ 39.566717] RAW 6KB 7KB [ 39.572072] UDP 25KB 40KB [ 39.577492] request_sock_TCP 0KB 3KB [ 39.582917] TCP 11KB 11KB [ 39.588270] hugetlbfs_inode_cache 3KB 15KB [ 39.594016] fscache_cookie_jar 1KB 11KB [ 39.599461] eventpoll_pwq 51KB 99KB [ 39.604887] eventpoll_epi 86KB 161KB [ 39.610238] inotify_inode_mark 6KB 11KB [ 39.615729] request_queue 230KB 339KB [ 39.621172] blkdev_requests 1KB 3KB [ 39.626586] blkdev_ioc 4KB 15KB [ 39.631938] bio-0 107KB 198KB [ 39.637347] biovec-max 1237KB 1287KB [ 39.642784] biovec-64 47KB 86KB [ 39.648138] biovec-16 3KB 18KB [ 39.653538] bio_integrity_payload 1KB 8KB [ 39.659246] khugepaged_mm_slot 0KB 3KB [ 39.664757] uid_cache 1KB 4KB [ 39.670110] dmaengine-unmap-2 0KB 3KB [ 39.675522] skbuff_fclone_cache 318KB 318KB [ 39.681051] skbuff_head_cache 1904KB 1905KB [ 39.686467] configfs_dir_cache 3KB 7KB [ 39.691949] file_lock_cache 100KB 106KB [ 39.697357] file_lock_ctx 9KB 15KB [ 39.702787] fsnotify_mark_connector 2KB 3KB [ 39.708661] shmem_inode_cache 7782KB 7785KB [ 39.714057] task_delay_info 123KB 438KB [ 39.719412] taskstats 0KB 3KB [ 39.724828] proc_dir_entry 302KB 307KB [ 39.730180] pde_opener 44KB 77KB [ 39.735591] seq_file 458KB 775KB [ 39.740955] sigqueue 28KB 74KB [ 39.746368] kernfs_node_cache 9950KB 9961KB [ 39.751720] mnt_cache 69KB 84KB [ 39.757129] filp 9980KB 9982KB [ 39.762565] names_cache 175665KB 175686KB [ 39.767920] iint_cache 83KB 83KB [ 39.773329] key_jar 4KB 7KB [ 39.778686] nsproxy 0KB 3KB [ 39.784103] vm_area_struct 2149KB 2730KB [ 39.789453] mm_struct 248KB 494KB [ 39.794859] fs_cache 120KB 348KB [ 39.800217] files_cache 240KB 607KB [ 39.805631] signal_cache 508KB 1365KB [ 39.810993] sighand_cache 555KB 672KB [ 39.816403] task_struct 1805KB 1805KB [ 39.821758] cred_jar 862KB 1984KB [ 39.827180] anon_vma_chain 767KB 1102KB [ 39.832683] anon_vma 210KB 331KB [ 39.838033] pid 85KB 336KB [ 39.843445] Acpi-Operand 158KB 202KB [ 39.848803] Acpi-ParseExt 8KB 11KB [ 39.854214] Acpi-Parse 41KB 55KB [ 39.859569] Acpi-State 52KB 74KB [ 39.864980] Acpi-Namespace 20KB 27KB [ 39.870340] numa_policy 0KB 3KB [ 39.875761] debug_objects_cache 654KB 683KB [ 39.881288] trace_event_file 297KB 298KB [ 39.886702] ftrace_event_field 398KB 401KB [ 39.892234] pool_workqueue 79KB 84KB [ 39.897731] page->ptl 214KB 553KB [ 39.903195] kmalloc-2097152 2050KB 2050KB [ 39.908545] kmalloc-524288 2056KB 2056KB [ 39.913937] kmalloc-262144 1290KB 1290KB [ 39.919295] kmalloc-131072 650KB 650KB [ 39.924709] kmalloc-65536 264KB 330KB [ 39.930062] kmalloc-32768 660KB 660KB [ 39.935467] kmalloc-16384 247KB 330KB [ 39.940832] kmalloc-8192 1105KB 1146KB [ 39.946249] kmalloc-4096 11105KB 11164KB [ 39.951609] kmalloc-2048 6351KB 6355KB [ 39.957041] kmalloc-1024 3334KB 3386KB [ 39.962494] kmalloc-512 3271KB 5122KB [ 39.967851] kmalloc-256 1961KB 2418KB [ 39.973256] kmalloc-128 458KB 492KB [ 39.978616] kmalloc-96 2478KB 2496KB [ 39.984043] kmalloc-64 2361KB 2448KB [ 39.989420] kmalloc-32 1028KB 1866KB executing program [ 39.994830] kmalloc-192 1052KB 1876KB [ 40.000186] kmem_cache 177KB 183KB [ 40.005607] Out of memory (oom_kill_allocating_task): Kill process 8107 (syz-executor533) score 0 or sacrifice child [ 40.016337] Killed process 8107 (syz-executor533) total-vm:17440kB, anon-rss:2100kB, file-rss:0kB, shmem-rss:0kB [ 40.027197] oom_reaper: reaped process 8107 (syz-executor533), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 40.040859] FAULT_INJECTION: forcing a failure. [ 40.040859] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 40.053801] CPU: 1 PID: 8108 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 [ 40.061658] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 40.070997] Call Trace: [ 40.073567] dump_stack+0x1fc/0x2ef [ 40.077176] should_fail.cold+0xa/0xf [ 40.080960] ? setup_fault_attr+0x200/0x200 [ 40.085304] __alloc_pages_nodemask+0x239/0x2890 [ 40.090047] ? static_obj+0x50/0x50 [ 40.093655] ? get_reg+0x1f0/0x1f0 [ 40.097192] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 40.102027] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 40.107895] ? deref_stack_reg+0x1d0/0x1d0 [ 40.112114] ? mark_held_locks+0xf0/0xf0 [ 40.116159] ? is_bpf_text_address+0xd5/0x1b0 [ 40.120634] ? __lock_acquire+0x6de/0x3ff0 [ 40.124853] cache_grow_begin+0xa4/0x8a0 [ 40.128895] ? setup_fault_attr+0x200/0x200 [ 40.133198] cache_alloc_refill+0x273/0x340 [ 40.137499] __kmalloc+0x362/0x3c0 [ 40.141018] ? tty_buffer_alloc+0x23f/0x2a0 [ 40.145319] tty_buffer_alloc+0x23f/0x2a0 [ 40.149448] __tty_buffer_request_room+0x156/0x2a0 [ 40.154360] tty_insert_flip_string_fixed_flag+0x93/0x250 [ 40.159879] ? do_raw_spin_lock+0xcb/0x220 [ 40.164095] pty_write+0x126/0x1f0 [ 40.167617] n_tty_write+0xa03/0xff0 [ 40.171315] ? __ldsem_down_read_nested+0xd2/0x780 [ 40.176226] ? n_tty_open+0x160/0x160 [ 40.180012] ? do_wait_intr_irq+0x270/0x270 [ 40.184319] ? __might_fault+0x192/0x1d0 [ 40.188367] tty_write+0x496/0x810 [ 40.191888] ? n_tty_open+0x160/0x160 [ 40.195668] __vfs_write+0xf7/0x770 [ 40.199283] ? tty_compat_ioctl+0x270/0x270 [ 40.203595] ? common_file_perm+0x4e5/0x850 [ 40.207902] ? kernel_read+0x110/0x110 [ 40.211774] ? vm_insert_page+0x9c0/0x9c0 [ 40.215904] ? apparmor_getprocattr+0x11e0/0x11e0 [ 40.220726] ? vfs_write+0x3d7/0x540 [ 40.227184] ? security_file_permission+0x1c0/0x220 [ 40.232683] vfs_write+0x1f3/0x540 [ 40.237428] ksys_write+0x12b/0x2a0 [ 40.241036] ? __ia32_sys_read+0xb0/0xb0 [ 40.245078] ? trace_hardirqs_off_caller+0x6e/0x210 [ 40.250076] ? do_syscall_64+0x21/0x620 [ 40.254031] do_syscall_64+0xf9/0x620 [ 40.257815] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.262984] RIP: 0033:0x7fa5c6d45cf9 [ 40.266678] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 40.285560] RSP: 002b:00007ffe3dc330f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 40.293258] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fa5c6d45cf9 [ 40.300518] RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000003 [ 40.307768] RBP: 00007ffe3dc33110 R08: 0000000000000001 R09: 00007ffe3dc33090 [ 40.315018] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 40.322265] R13: 431bde82d7b634db R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 [ 40.329544] [ 40.329547] ====================================================== [ 40.329550] WARNING: possible circular locking dependency detected [ 40.329552] 4.19.211-syzkaller #0 Not tainted [ 40.329555] ------------------------------------------------------ [ 40.329557] syz-executor533/8108 is trying to acquire lock: [ 40.329559] 00000000053aabd6 (console_owner){....}, at: console_unlock+0x3a9/0x1110 [ 40.329567] [ 40.329569] but task is already holding lock: [ 40.329570] 00000000af24c593 (&(&port->lock)->rlock){-.-.}, at: pty_write+0xf4/0x1f0 [ 40.329578] [ 40.329580] which lock already depends on the new lock. [ 40.329581] [ 40.329582] [ 40.329585] the existing dependency chain (in reverse order) is: [ 40.329586] [ 40.329587] -> #2 (&(&port->lock)->rlock){-.-.}: [ 40.329595] tty_port_tty_get+0x1d/0x80 [ 40.329597] tty_port_default_wakeup+0x11/0x40 [ 40.329599] serial8250_tx_chars+0x490/0xaf0 [ 40.329601] serial8250_handle_irq.part.0+0x31f/0x3d0 [ 40.329604] serial8250_default_handle_irq+0xae/0x220 [ 40.329606] serial8250_interrupt+0x101/0x240 [ 40.329608] __handle_irq_event_percpu+0x27e/0x8e0 [ 40.329611] handle_irq_event+0x102/0x290 [ 40.329613] handle_edge_irq+0x260/0xcf0 [ 40.329614] handle_irq+0x35/0x50 [ 40.329616] do_IRQ+0x93/0x1c0 [ 40.329618] ret_from_intr+0x0/0x1e [ 40.329621] _raw_spin_unlock_irqrestore+0xa3/0xe0 [ 40.329623] uart_write+0x3bb/0x6f0 [ 40.329625] do_output_char+0x5de/0x850 [ 40.329627] n_tty_write+0x46e/0xff0 [ 40.329628] tty_write+0x496/0x810 [ 40.329631] redirected_tty_write+0xaa/0xb0 [ 40.329633] do_iter_write+0x461/0x5d0 [ 40.329635] vfs_writev+0x153/0x2e0 [ 40.329636] do_writev+0x136/0x330 [ 40.329638] do_syscall_64+0xf9/0x620 [ 40.329641] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.329642] [ 40.329643] -> #1 (&port_lock_key){-.-.}: [ 40.329650] serial8250_console_write+0x90e/0xb70 [ 40.329652] console_unlock+0xbb6/0x1110 [ 40.329654] vprintk_emit+0x2d1/0x740 [ 40.329656] vprintk_func+0x79/0x180 [ 40.329658] printk+0xba/0xed [ 40.329660] register_console+0x87f/0xc90 [ 40.329662] univ8250_console_init+0x3a/0x46 [ 40.329664] console_init+0x4cb/0x718 [ 40.329666] start_kernel+0x686/0x911 [ 40.329668] secondary_startup_64+0xa4/0xb0 [ 40.329670] [ 40.329671] -> #0 (console_owner){....}: [ 40.329678] console_unlock+0x411/0x1110 [ 40.329680] vprintk_emit+0x2d1/0x740 [ 40.329682] vprintk_func+0x79/0x180 [ 40.329683] printk+0xba/0xed [ 40.329685] should_fail+0x66b/0x7b0 [ 40.329692] __alloc_pages_nodemask+0x239/0x2890 [ 40.329694] cache_grow_begin+0xa4/0x8a0 [ 40.329696] cache_alloc_refill+0x273/0x340 [ 40.329698] __kmalloc+0x362/0x3c0 [ 40.329700] tty_buffer_alloc+0x23f/0x2a0 [ 40.329703] __tty_buffer_request_room+0x156/0x2a0 [ 40.329705] tty_insert_flip_string_fixed_flag+0x93/0x250 [ 40.329707] pty_write+0x126/0x1f0 [ 40.329709] n_tty_write+0xa03/0xff0 [ 40.329711] tty_write+0x496/0x810 [ 40.329713] __vfs_write+0xf7/0x770 [ 40.329715] vfs_write+0x1f3/0x540 [ 40.329717] ksys_write+0x12b/0x2a0 [ 40.329719] do_syscall_64+0xf9/0x620 [ 40.329721] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.329722] [ 40.329725] other info that might help us debug this: [ 40.329726] [ 40.329727] Chain exists of: [ 40.329728] console_owner --> &port_lock_key --> &(&port->lock)->rlock [ 40.329737] [ 40.329739] Possible unsafe locking scenario: [ 40.329741] [ 40.329743] CPU0 CPU1 [ 40.329745] ---- ---- [ 40.329746] lock(&(&port->lock)->rlock); [ 40.329751] lock(&port_lock_key); [ 40.329756] lock(&(&port->lock)->rlock); [ 40.329760] lock(console_owner); [ 40.329764] [ 40.329765] *** DEADLOCK *** [ 40.329766] [ 40.329768] 6 locks held by syz-executor533/8108: [ 40.329770] #0: 00000000935b7710 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 [ 40.329778] #1: 000000000a51f7ad (&tty->atomic_write_lock){+.+.}, at: tty_write+0x24e/0x810 [ 40.329787] #2: 0000000045402ce0 (&tty->termios_rwsem){++++}, at: n_tty_write+0x1b5/0xff0 [ 40.329795] #3: 0000000070e8d56e (&ldata->output_lock){+.+.}, at: n_tty_write+0x9d0/0xff0 [ 40.329804] #4: 00000000af24c593 (&(&port->lock)->rlock){-.-.}, at: pty_write+0xf4/0x1f0 [ 40.329812] #5: 00000000751716ab (console_lock){+.+.}, at: vprintk_func+0x79/0x180 [ 40.329820] [ 40.329822] stack backtrace: [ 40.329825] CPU: 1 PID: 8108 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 [ 40.329829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 40.329831] Call Trace: [ 40.329832] dump_stack+0x1fc/0x2ef [ 40.329835] print_circular_bug.constprop.0.cold+0x2d7/0x41e [ 40.329837] __lock_acquire+0x30c9/0x3ff0 [ 40.329839] ? mark_held_locks+0xf0/0xf0 [ 40.329841] ? snprintf+0xf0/0xf0 [ 40.329843] ? console_unlock+0x3ec/0x1110 [ 40.329845] lock_acquire+0x170/0x3c0 [ 40.329847] ? console_unlock+0x3a9/0x1110 [ 40.329849] console_unlock+0x411/0x1110 [ 40.329852] ? console_unlock+0x3a9/0x1110 [ 40.329853] vprintk_emit+0x2d1/0x740 [ 40.329855] vprintk_func+0x79/0x180 [ 40.329857] printk+0xba/0xed [ 40.329859] ? log_store.cold+0x16/0x16 [ 40.329861] ? static_obj+0x50/0x50 [ 40.329863] ? ___ratelimit+0x319/0x590 [ 40.329865] should_fail+0x66b/0x7b0 [ 40.329867] ? setup_fault_attr+0x200/0x200 [ 40.329869] __alloc_pages_nodemask+0x239/0x2890 [ 40.329871] ? static_obj+0x50/0x50 [ 40.329873] ? get_reg+0x1f0/0x1f0 [ 40.329876] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 40.329878] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 40.329880] ? deref_stack_reg+0x1d0/0x1d0 [ 40.329882] ? mark_held_locks+0xf0/0xf0 [ 40.329885] ? is_bpf_text_address+0xd5/0x1b0 [ 40.329887] ? __lock_acquire+0x6de/0x3ff0 [ 40.329889] cache_grow_begin+0xa4/0x8a0 [ 40.329891] ? setup_fault_attr+0x200/0x200 [ 40.329893] cache_alloc_refill+0x273/0x340 [ 40.329895] __kmalloc+0x362/0x3c0 [ 40.329897] ? tty_buffer_alloc+0x23f/0x2a0 [ 40.329899] tty_buffer_alloc+0x23f/0x2a0 [ 40.329902] __tty_buffer_request_room+0x156/0x2a0 [ 40.329904] tty_insert_flip_string_fixed_flag+0x93/0x250 [ 40.329906] ? do_raw_spin_lock+0xcb/0x220 [ 40.329908] pty_write+0x126/0x1f0 [ 40.329910] n_tty_write+0xa03/0xff0 [ 40.329912] ? __ldsem_down_read_nested+0xd2/0x780 [ 40.329914] ? n_tty_open+0x160/0x160 [ 40.329916] ? do_wait_intr_irq+0x270/0x270 [ 40.329919] ? __might_fault+0x192/0x1d0 [ 40.329920] tty_write+0x496/0x810 [ 40.329922] ? n_tty_open+0x160/0x160 [ 40.329924] __vfs_write+0xf7/0x770 [ 40.329926] ? tty_compat_ioctl+0x270/0x270 [ 40.329928] ? common_file_perm+0x4e5/0x850 [ 40.329930] ? kernel_read+0x110/0x110 [ 40.329933] ? vm_insert_page+0x9c0/0x9c0 [ 40.329935] ? apparmor_getprocattr+0x11e0/0x11e0 [ 40.329937] ? vfs_write+0x3d7/0x540 [ 40.329939] ? security_file_permission+0x1c0/0x220 [ 40.329941] vfs_write+0x1f3/0x540 [ 40.329943] ksys_write+0x12b/0x2a0 [ 40.329945] ? __ia32_sys_read+0xb0/0xb0 [ 40.329947] ? trace_hardirqs_off_caller+0x6e/0x210 [ 40.329949] ? do_syscall_64+0x21/0x620 [ 40.329951] do_syscall_64+0xf9/0x620 [ 40.329954] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.329956] RIP: 0033:0x7fa5c6d45cf9 [ 40.329963] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 40.329965] RSP: 002b:00007ffe3dc330f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 40.329970] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fa5c6d45cf9 [ 40.329974] RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000003 [ 40.329977] RBP: 00007ffe3dc33110 R08: 0000000000000001 R09: 00007ffe3dc33090 executing program [ 40.329980] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 40.329983] R13: 431bde82d7b634db R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 [ 41.116880] FAULT_INJECTION: forcing a failure. [ 41.116880] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 41.132003] CPU: 1 PID: 8109 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 [ 41.139901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 41.149263] Call Trace: [ 41.151857] dump_stack+0x1fc/0x2ef [ 41.155486] should_fail.cold+0xa/0xf [ 41.159307] ? lock_acquire+0x170/0x3c0 [ 41.163289] ? setup_fault_attr+0x200/0x200 [ 41.167617] __alloc_pages_nodemask+0x239/0x2890 [ 41.172376] ? finish_task_switch+0x118/0x760 [ 41.176911] ? trace_hardirqs_on+0x55/0x210 [ 41.181238] ? __schedule+0x88f/0x2040 [ 41.185129] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 41.189968] ? mark_held_locks+0xf0/0xf0 [ 41.194011] ? io_schedule_timeout+0x140/0x140 [ 41.198576] ? lock_downgrade+0x720/0x720 [ 41.202703] ? ___preempt_schedule+0x16/0x18 [ 41.207090] alloc_pages_vma+0xf2/0x780 [ 41.211048] wp_page_copy+0x219/0x2c40 [ 41.214921] ? _vm_normal_page+0x132/0x510 [ 41.219135] ? follow_pte_pmd+0x60/0x60 [ 41.223091] ? lock_downgrade+0x720/0x720 [ 41.227220] do_wp_page+0x2d4/0x2210 [ 41.230918] ? finish_mkwrite_fault+0x640/0x640 [ 41.235566] ? __handle_mm_fault+0x15f6/0x41c0 [ 41.240129] ? mark_held_locks+0xf0/0xf0 [ 41.244174] __handle_mm_fault+0x258b/0x41c0 [ 41.248580] ? kernel_read+0x110/0x110 [ 41.252457] ? vm_insert_page+0x9c0/0x9c0 [ 41.256594] ? apparmor_getprocattr+0x11e0/0x11e0 [ 41.261426] ? lock_acquire+0x170/0x3c0 [ 41.265377] ? handle_mm_fault+0xb2/0xb10 [ 41.269505] handle_mm_fault+0x436/0xb10 [ 41.273549] __do_page_fault+0x68e/0xd60 [ 41.277592] ? trace_hardirqs_off_caller+0x6e/0x210 [ 41.282586] ? spurious_fault+0x840/0x840 [ 41.286719] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.291541] ? page_fault+0x8/0x30 [ 41.295059] page_fault+0x1e/0x30 [ 41.298492] RIP: 0033:0x7fa5c6d06ff5 [ 41.302185] Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c ae 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f [ 41.321080] RSP: 002b:00007ffe3dc330b0 EFLAGS: 00010246 [ 41.326425] RAX: 0000000000000000 RBX: 00007fa5c6daf140 RCX: 0000000000000001 [ 41.333676] RDX: 0000000000000001 RSI: 00007fa5c6daf140 RDI: 0000000000000000 [ 41.340922] RBP: 0000000000000000 R08: 0000000000000001 R09: 00007ffe3dc33090 [ 41.348170] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 41.355417] R13: 0000000000000001 R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 [ 41.363146] syz-executor533 invoked oom-killer: gfp_mask=0x0(), nodemask=(null), order=0, oom_score_adj=1000 [ 41.373149] syz-executor533 cpuset=/ mems_allowed=0-1 [ 41.378351] CPU: 1 PID: 8109 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 [ 41.386209] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 41.395542] Call Trace: [ 41.398118] dump_stack+0x1fc/0x2ef [ 41.401726] dump_header+0x15d/0xc3f [ 41.405428] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 41.410522] ? ___ratelimit+0x319/0x590 [ 41.414477] oom_kill_process.cold+0x10/0x692 [ 41.418957] ? has_intersects_mems_allowed+0x1d6/0x290 [ 41.424211] out_of_memory+0x1072/0x1390 [ 41.428262] ? lock_acquire+0x170/0x3c0 [ 41.432221] ? oom_killer_disable+0x270/0x270 [ 41.436694] ? mutex_trylock+0x15f/0x1a0 [ 41.440733] pagefault_out_of_memory+0x102/0x120 [ 41.445465] ? out_of_memory+0x1390/0x1390 [ 41.449679] ? lock_downgrade+0x720/0x720 [ 41.453807] mm_fault_error+0x106/0x390 [ 41.457763] __do_page_fault+0xc34/0xd60 [ 41.461804] ? trace_hardirqs_off_caller+0x6e/0x210 [ 41.466804] ? spurious_fault+0x840/0x840 [ 41.470931] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.475758] ? page_fault+0x8/0x30 [ 41.479283] page_fault+0x1e/0x30 [ 41.482717] RIP: 0033:0x7fa5c6d06ff5 [ 41.486409] Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c ae 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f [ 41.505291] RSP: 002b:00007ffe3dc330b0 EFLAGS: 00010246 [ 41.510642] RAX: 0000000000000000 RBX: 00007fa5c6daf140 RCX: 0000000000000001 [ 41.517891] RDX: 0000000000000001 RSI: 00007fa5c6daf140 RDI: 0000000000000000 [ 41.525142] RBP: 0000000000000000 R08: 0000000000000001 R09: 00007ffe3dc33090 [ 41.532389] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 41.539637] R13: 0000000000000001 R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 [ 41.546973] Mem-Info: [ 41.549411] active_anon:2987 inactive_anon:4714 isolated_anon:0 [ 41.549411] active_file:5340 inactive_file:11857 isolated_file:0 [ 41.549411] unevictable:0 dirty:7865 writeback:0 unstable:0 [ 41.549411] slab_reclaimable:16167 slab_unreclaimable:113419 [ 41.549411] mapped:3803 shmem:4898 pagetables:338 bounce:0 [ 41.549411] free:1530384 free_pcp:466 free_cma:0 [ 41.583390] Node 0 active_anon:11948kB inactive_anon:18856kB active_file:21236kB inactive_file:47428kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:15212kB dirty:31452kB writeback:0kB shmem:19592kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 41.611753] Node 1 active_anon:0kB inactive_anon:0kB active_file:124kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:8kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 41.637588] Node 0 DMA free:15908kB min:204kB low:252kB high:300kB 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 [ 41.663769] lowmem_reserve[]: 0 2693 2695 2695 2695 [ 41.668786] Node 0 DMA32 free:2066500kB min:35996kB low:44992kB high:53988kB active_anon:11948kB inactive_anon:18856kB active_file:21236kB inactive_file:47428kB unevictable:0kB writepending:31452kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:6528kB pagetables:1352kB bounce:0kB free_pcp:1828kB local_pcp:760kB free_cma:0kB [ 41.698866] lowmem_reserve[]: 0 0 1 1 1 [ 41.702896] Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 41.728898] lowmem_reserve[]: 0 0 0 0 0 [ 41.732916] Node 1 Normal free:4039432kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:124kB inactive_file:0kB unevictable:0kB writepending:8kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 41.760576] lowmem_reserve[]: 0 0 0 0 0 [ 41.764625] 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 [ 41.778236] Node 0 DMA32: 1349*4kB (UE) 11*8kB (U) 219*16kB (UE) 116*32kB (UME) 26*64kB (UME) 7*128kB (UM) 5*256kB (UME) 3*512kB (UE) 4*1024kB (UME) 2*2048kB (ME) 498*4096kB (M) = 2066076kB [ 41.795434] Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB [ 41.806515] Node 1 Normal: 96*4kB (UME) 397*8kB (UM) 292*16kB (UE) 75*32kB (UME) 30*64kB (UME) 18*128kB (UM) 11*256kB (UME) 7*512kB (UME) 2*1024kB (M) 1*2048kB (U) 980*4096kB (M) = 4039432kB [ 41.823722] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 41.832582] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 41.841152] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 41.850033] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 41.858645] 22094 total pagecache pages [ 41.862662] 0 pages in swap cache [ 41.866100] Swap cache stats: add 0, delete 0, find 0/0 [ 41.871440] Free swap = 0kB [ 41.874482] Total swap = 0kB [ 41.877488] 2097051 pages RAM [ 41.880571] 0 pages HighMem/MovableOnly [ 41.884581] 369649 pages reserved [ 41.888025] 0 pages cma reserved [ 41.891372] Unreclaimable slab info: [ 41.895102] Name Used Total [ 41.900664] TIPC 1KB 7KB [ 41.906079] SCTPv6 2KB 6KB [ 41.911438] DCCPv6 2KB 7KB [ 41.916836] DCCP 2KB 7KB [ 41.922261] RXRPC 1KB 6KB [ 41.927609] rxrpc_call_jar 11KB 15KB [ 41.933005] fib6_nodes 0KB 4KB [ 41.938363] ip6_dst_cache 1KB 3KB [ 41.943768] RAWv6 10KB 20KB [ 41.949124] UDPv6 13KB 15KB [ 41.954520] TCPv6 6KB 6KB [ 41.959881] nf_conntrack 22KB 22KB [ 41.965323] t10_alua_lu_gp_cache 0KB 3KB [ 41.970940] sd_ext_cdb 0KB 7KB [ 41.976332] scsi_sense_cache 1056KB 1064KB [ 41.981749] virtio_scsi_cmd 16KB 16KB [ 41.987098] sgpool-128 8KB 8KB [ 41.992475] sgpool-64 4KB 12KB [ 41.997832] sgpool-32 2KB 15KB [ 42.003348] sgpool-16 1KB 7KB [ 42.008697] sgpool-8 0KB 7KB [ 42.014089] mqueue_inode_cache 1KB 7KB [ 42.019535] bio_post_read_ctx 14KB 15KB [ 42.024978] bio-2 14KB 15KB [ 42.030333] jfs_mp 7KB 7KB [ 42.035739] cifs_small_rq 15KB 16KB [ 42.041089] cifs_request 67KB 67KB [ 42.046492] cifs_mpx_ids 0KB 7KB [ 42.051897] nfs_commit_data 3KB 14KB [ 42.057240] nfs_write_data 34KB 44KB [ 42.063557] ext4_system_zone 1KB 7KB [ 42.068931] bio-1 1KB 7KB [ 42.074330] rpc_buffers 17KB 25KB [ 42.079700] rpc_tasks 2KB 7KB [ 42.085112] UNIX 416KB 416KB [ 42.090464] tcp_bind_bucket 0KB 4KB [ 42.095866] ip_fib_trie 0KB 3KB [ 42.101256] ip_fib_alias 0KB 3KB [ 42.106663] ip_dst_cache 3KB 8KB [ 42.112056] RAW 6KB 7KB [ 42.117399] UDP 25KB 40KB [ 42.122804] request_sock_TCP 0KB 3KB [ 42.128156] TCP 11KB 11KB [ 42.133605] hugetlbfs_inode_cache 3KB 15KB [ 42.139303] fscache_cookie_jar 1KB 11KB [ 42.144808] eventpoll_pwq 39KB 91KB [ 42.150160] eventpoll_epi 64KB 145KB [ 42.155561] inotify_inode_mark 6KB 11KB [ 42.161004] request_queue 215KB 309KB [ 42.166407] blkdev_requests 1KB 3KB [ 42.171798] blkdev_ioc 4KB 15KB [ 42.177151] bio-0 92KB 180KB [ 42.182555] biovec-max 1237KB 1262KB [ 42.187916] biovec-64 23KB 55KB [ 42.193315] biovec-16 3KB 15KB [ 42.198672] bio_integrity_payload 1KB 8KB [ 42.204424] khugepaged_mm_slot 1KB 3KB [ 42.209863] uid_cache 1KB 4KB [ 42.215378] dmaengine-unmap-2 0KB 3KB [ 42.220729] skbuff_fclone_cache 318KB 318KB [ 42.226305] skbuff_head_cache 1828KB 1905KB [ 42.231714] configfs_dir_cache 3KB 7KB [ 42.237143] file_lock_cache 100KB 106KB [ 42.242548] file_lock_ctx 9KB 15KB [ 42.247903] fsnotify_mark_connector 2KB 3KB [ 42.253809] shmem_inode_cache 7786KB 7789KB [ 42.259166] task_delay_info 106KB 426KB [ 42.264573] taskstats 0KB 3KB [ 42.269949] proc_dir_entry 302KB 307KB [ 42.275344] pde_opener 37KB 77KB [ 42.280699] seq_file 412KB 771KB [ 42.286143] sigqueue 19KB 55KB [ 42.291534] kernfs_node_cache 9950KB 9961KB [ 42.296973] mnt_cache 68KB 80KB [ 42.302381] filp 10141KB 10143KB [ 42.307731] names_cache 177569KB 177590KB [ 42.313115] iint_cache 83KB 83KB [ 42.318728] key_jar 4KB 7KB [ 42.324134] nsproxy 0KB 3KB [ 42.329478] vm_area_struct 2170KB 2730KB [ 42.334862] mm_struct 248KB 494KB [ 42.340222] fs_cache 96KB 336KB [ 42.345644] files_cache 240KB 607KB [ 42.351003] signal_cache 508KB 1365KB [ 42.356406] sighand_cache 508KB 638KB [ 42.361820] task_struct 1830KB 1830KB [ 42.367166] cred_jar 1027KB 1984KB [ 42.372546] anon_vma_chain 780KB 1102KB [ 42.377907] anon_vma 210KB 331KB [ 42.383315] pid 73KB 320KB [ 42.388664] Acpi-Operand 157KB 202KB [ 42.394056] Acpi-ParseExt 8KB 11KB [ 42.399602] Acpi-Parse 41KB 51KB [ 42.405016] Acpi-State 52KB 70KB [ 42.410373] Acpi-Namespace 20KB 27KB [ 42.415766] numa_policy 0KB 3KB [ 42.421124] debug_objects_cache 649KB 683KB [ 42.426825] trace_event_file 297KB 298KB [ 42.432226] ftrace_event_field 398KB 401KB [ 42.437670] pool_workqueue 79KB 84KB [ 42.443103] page->ptl 214KB 553KB [ 42.448467] kmalloc-2097152 2050KB 2050KB [ 42.453851] kmalloc-524288 2056KB 2056KB [ 42.459205] kmalloc-262144 1290KB 1290KB [ 42.464616] kmalloc-131072 650KB 650KB [ 42.469965] kmalloc-65536 264KB 330KB [ 42.475378] kmalloc-32768 660KB 660KB [ 42.480910] kmalloc-16384 247KB 297KB [ 42.486319] kmalloc-8192 1105KB 1146KB [ 42.491715] kmalloc-4096 10051KB 10110KB [ 42.497061] kmalloc-2048 6364KB 6368KB [ 42.502461] kmalloc-1024 3373KB 3425KB [ 42.507815] kmalloc-512 3153KB 5092KB [ 42.513199] kmalloc-256 1961KB 2418KB [ 42.518553] kmalloc-128 450KB 492KB [ 42.523961] kmalloc-96 2522KB 2540KB [ 42.529308] kmalloc-64 2354KB 2448KB [ 42.534695] kmalloc-32 1028KB 1866KB [ 42.540057] kmalloc-192 1028KB 1832KB [ 42.545461] kmem_cache 177KB 183KB executing program [ 42.550813] Out of memory (oom_kill_allocating_task): Kill process 8109 (syz-executor533) score 0 or sacrifice child [ 42.561530] Killed process 8109 (syz-executor533) total-vm:17440kB, anon-rss:2100kB, file-rss:0kB, shmem-rss:0kB [ 42.572371] oom_reaper: reaped process 8109 (syz-executor533), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 42.585735] FAULT_INJECTION: forcing a failure. [ 42.585735] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 42.597544] CPU: 0 PID: 8112 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 [ 42.605404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 42.614760] Call Trace: [ 42.617333] dump_stack+0x1fc/0x2ef [ 42.620941] should_fail.cold+0xa/0xf [ 42.624723] ? setup_fault_attr+0x200/0x200 [ 42.629023] ? alloc_inode+0x5d/0x180 [ 42.632801] ? new_inode+0x1d/0xf0 [ 42.636322] __alloc_pages_nodemask+0x239/0x2890 [ 42.641060] ? lock_downgrade+0x720/0x720 [ 42.645204] ? deref_stack_reg+0x134/0x1d0 [ 42.649417] ? get_reg+0x1f0/0x1f0 [ 42.652938] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 42.657762] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 42.663626] ? deref_stack_reg+0x1d0/0x1d0 [ 42.667843] ? mark_held_locks+0xf0/0xf0 [ 42.671885] ? unwind_next_frame+0xeee/0x1400 [ 42.676359] ? lock_downgrade+0x720/0x720 [ 42.680485] ? lock_acquire+0x170/0x3c0 [ 42.684443] cache_grow_begin+0xa4/0x8a0 [ 42.688484] ? setup_fault_attr+0x200/0x200 [ 42.692786] cache_alloc_refill+0x273/0x340 [ 42.697091] __kmalloc+0x362/0x3c0 [ 42.700609] ? tty_buffer_alloc+0x23f/0x2a0 [ 42.704908] tty_buffer_alloc+0x23f/0x2a0 [ 42.709036] __tty_buffer_request_room+0x156/0x2a0 [ 42.713947] tty_insert_flip_string_fixed_flag+0x93/0x250 [ 42.719471] ? do_raw_spin_lock+0xcb/0x220 [ 42.723695] pty_write+0x126/0x1f0 [ 42.727219] n_tty_write+0xa03/0xff0 [ 42.730915] ? __ldsem_down_read_nested+0xd2/0x780 [ 42.735828] ? lock_acquire+0x170/0x3c0 [ 42.739782] ? aa_file_perm+0xdd/0xd20 [ 42.743650] ? n_tty_open+0x160/0x160 [ 42.747430] ? do_wait_intr_irq+0x270/0x270 [ 42.751735] ? __might_fault+0x192/0x1d0 [ 42.755778] tty_write+0x496/0x810 [ 42.759302] ? n_tty_open+0x160/0x160 [ 42.763087] __vfs_write+0xf7/0x770 [ 42.766692] ? tty_compat_ioctl+0x270/0x270 [ 42.770995] ? common_file_perm+0x4e5/0x850 [ 42.775294] ? kernel_read+0x110/0x110 [ 42.779160] ? vm_insert_page+0x9c0/0x9c0 [ 42.783288] ? apparmor_getprocattr+0x11e0/0x11e0 [ 42.788115] ? security_file_permission+0x1c0/0x220 [ 42.793111] vfs_write+0x1f3/0x540 [ 42.796629] ksys_write+0x12b/0x2a0 [ 42.800233] ? __ia32_sys_read+0xb0/0xb0 [ 42.804273] ? trace_hardirqs_off_caller+0x6e/0x210 [ 42.809267] do_syscall_64+0xf9/0x620 [ 42.813050] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.818218] RIP: 0033:0x7fa5c6d45cf9 [ 42.821912] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 42.840796] RSP: 002b:00007ffe3dc330f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 42.848485] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fa5c6d45cf9 executing program [ 42.855735] RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000003 [ 42.862985] RBP: 00007ffe3dc33110 R08: 0000000000000001 R09: 00007ffe3dc33090 [ 42.870233] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 42.877483] R13: 431bde82d7b634db R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 [ 42.890683] FAULT_INJECTION: forcing a failure. [ 42.890683] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 42.902578] CPU: 0 PID: 8113 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 [ 42.910459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 42.919907] Call Trace: [ 42.922482] dump_stack+0x1fc/0x2ef [ 42.926096] should_fail.cold+0xa/0xf [ 42.929883] ? lock_acquire+0x170/0x3c0 [ 42.933839] ? setup_fault_attr+0x200/0x200 [ 42.938142] __alloc_pages_nodemask+0x239/0x2890 [ 42.942882] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 42.947963] ? try_to_wake_up+0x733/0x1050 [ 42.952175] ? mark_held_locks+0xf0/0xf0 [ 42.956214] ? debug_object_activate+0x295/0x450 [ 42.960953] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 42.965780] ? lock_downgrade+0x720/0x720 [ 42.969910] ? mark_held_locks+0xf0/0xf0 [ 42.973956] ? lock_downgrade+0x720/0x720 [ 42.978088] ? _raw_spin_lock_irqsave+0x94/0xc0 [ 42.982735] alloc_pages_vma+0xf2/0x780 [ 42.986692] wp_page_copy+0x219/0x2c40 [ 42.990562] ? _vm_normal_page+0x132/0x510 [ 42.994776] ? follow_pte_pmd+0x60/0x60 [ 42.998731] ? lock_downgrade+0x720/0x720 [ 43.002859] do_wp_page+0x2d4/0x2210 [ 43.006554] ? finish_mkwrite_fault+0x640/0x640 [ 43.011202] ? __handle_mm_fault+0x15f6/0x41c0 [ 43.015763] ? mark_held_locks+0xf0/0xf0 [ 43.019805] __handle_mm_fault+0x258b/0x41c0 [ 43.024193] ? kernel_read+0x110/0x110 [ 43.028058] ? vm_insert_page+0x9c0/0x9c0 [ 43.032189] ? apparmor_getprocattr+0x11e0/0x11e0 [ 43.037014] ? lock_acquire+0x170/0x3c0 [ 43.041058] ? handle_mm_fault+0xb2/0xb10 [ 43.045189] handle_mm_fault+0x436/0xb10 [ 43.049232] __do_page_fault+0x68e/0xd60 [ 43.053282] ? trace_hardirqs_off_caller+0x6e/0x210 [ 43.058277] ? spurious_fault+0x840/0x840 [ 43.062416] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.067241] ? page_fault+0x8/0x30 [ 43.070766] page_fault+0x1e/0x30 [ 43.074197] RIP: 0033:0x7fa5c6d06ff5 [ 43.077898] Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c ae 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f [ 43.096779] RSP: 002b:00007ffe3dc330b0 EFLAGS: 00010246 [ 43.102122] RAX: 0000000000000000 RBX: 00007fa5c6daf140 RCX: 0000000000000001 [ 43.109370] RDX: 0000000000000001 RSI: 00007fa5c6daf140 RDI: 0000000000000000 [ 43.116616] RBP: 0000000000000000 R08: 0000000000000001 R09: 00007ffe3dc33090 [ 43.123868] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 43.131113] R13: 0000000000000001 R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 [ 43.138489] syz-executor533 invoked oom-killer: gfp_mask=0x0(), nodemask=(null), order=0, oom_score_adj=1000 [ 43.148744] syz-executor533 cpuset=/ mems_allowed=0-1 [ 43.154319] CPU: 0 PID: 8113 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 [ 43.162202] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 43.171536] Call Trace: [ 43.174112] dump_stack+0x1fc/0x2ef [ 43.177720] dump_header+0x15d/0xc3f [ 43.181413] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 43.186494] ? ___ratelimit+0x319/0x590 [ 43.190447] oom_kill_process.cold+0x10/0x692 [ 43.194923] ? has_intersects_mems_allowed+0x1d6/0x290 [ 43.200179] out_of_memory+0x1072/0x1390 [ 43.204306] ? lock_acquire+0x170/0x3c0 [ 43.208261] ? oom_killer_disable+0x270/0x270 [ 43.212736] ? mutex_trylock+0x15f/0x1a0 [ 43.216775] pagefault_out_of_memory+0x102/0x120 [ 43.221506] ? out_of_memory+0x1390/0x1390 [ 43.225721] ? lock_downgrade+0x720/0x720 [ 43.229850] mm_fault_error+0x106/0x390 [ 43.233809] __do_page_fault+0xc34/0xd60 [ 43.237851] ? trace_hardirqs_off_caller+0x6e/0x210 [ 43.242844] ? spurious_fault+0x840/0x840 [ 43.246970] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.251792] ? page_fault+0x8/0x30 [ 43.255325] page_fault+0x1e/0x30 [ 43.258762] RIP: 0033:0x7fa5c6d06ff5 [ 43.262456] Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c ae 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f [ 43.281337] RSP: 002b:00007ffe3dc330b0 EFLAGS: 00010246 [ 43.286675] RAX: 0000000000000000 RBX: 00007fa5c6daf140 RCX: 0000000000000001 [ 43.293932] RDX: 0000000000000001 RSI: 00007fa5c6daf140 RDI: 0000000000000000 [ 43.301554] RBP: 0000000000000000 R08: 0000000000000001 R09: 00007ffe3dc33090 [ 43.308894] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 43.316142] R13: 0000000000000001 R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 [ 43.323757] Mem-Info: [ 43.326255] active_anon:2989 inactive_anon:4714 isolated_anon:0 [ 43.326255] active_file:5342 inactive_file:11887 isolated_file:0 [ 43.326255] unevictable:0 dirty:7904 writeback:0 unstable:0 [ 43.326255] slab_reclaimable:16174 slab_unreclaimable:113548 [ 43.326255] mapped:3832 shmem:4898 pagetables:338 bounce:0 [ 43.326255] free:1530292 free_pcp:382 free_cma:0 [ 43.360137] Node 0 active_anon:11956kB inactive_anon:18856kB active_file:21244kB inactive_file:47548kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:15328kB dirty:31608kB writeback:0kB shmem:19592kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 43.388511] Node 1 active_anon:0kB inactive_anon:0kB active_file:124kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:8kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 43.414305] Node 0 DMA free:15908kB min:204kB low:252kB high:300kB 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 [ 43.440521] lowmem_reserve[]: 0 2693 2695 2695 2695 [ 43.445564] Node 0 DMA32 free:2066132kB min:35996kB low:44992kB high:53988kB active_anon:11956kB inactive_anon:18856kB active_file:21244kB inactive_file:47548kB unevictable:0kB writepending:31608kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:6528kB pagetables:1352kB bounce:0kB free_pcp:1516kB local_pcp:904kB free_cma:0kB [ 43.475642] lowmem_reserve[]: 0 0 1 1 1 [ 43.479610] Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 43.505500] lowmem_reserve[]: 0 0 0 0 0 [ 43.509487] Node 1 Normal free:4039432kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:124kB inactive_file:0kB unevictable:0kB writepending:8kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 43.537190] lowmem_reserve[]: 0 0 0 0 0 [ 43.541217] 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 [ 43.554794] Node 0 DMA32: 1349*4kB (UE) 17*8kB (U) 167*16kB (UE) 129*32kB (UME) 27*64kB (UME) 7*128kB (UM) 5*256kB (UME) 3*512kB (UE) 4*1024kB (UME) 2*2048kB (ME) 498*4096kB (M) = 2065772kB [ 43.571883] Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB [ 43.582936] Node 1 Normal: 96*4kB (UME) 397*8kB (UM) 292*16kB (UE) 75*32kB (UME) 30*64kB (UME) 18*128kB (UM) 11*256kB (UME) 7*512kB (UME) 2*1024kB (M) 1*2048kB (U) 980*4096kB (M) = 4039432kB [ 43.600128] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 43.609017] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 43.617641] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 43.626509] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 43.635124] 22133 total pagecache pages [ 43.639092] 0 pages in swap cache [ 43.642572] Swap cache stats: add 0, delete 0, find 0/0 [ 43.647919] Free swap = 0kB [ 43.650959] Total swap = 0kB [ 43.653974] 2097051 pages RAM [ 43.657054] 0 pages HighMem/MovableOnly [ 43.661041] 369649 pages reserved [ 43.664476] 0 pages cma reserved [ 43.667815] Unreclaimable slab info: [ 43.671546] Name Used Total [ 43.677112] TIPC 1KB 7KB [ 43.682509] SCTPv6 2KB 6KB [ 43.687864] DCCPv6 2KB 7KB [ 43.693258] DCCP 2KB 7KB [ 43.698801] RXRPC 1KB 6KB [ 43.704182] rxrpc_call_jar 11KB 15KB [ 43.709540] fib6_nodes 0KB 4KB [ 43.714928] ip6_dst_cache 0KB 3KB [ 43.720292] RAWv6 10KB 20KB [ 43.725678] UDPv6 13KB 15KB [ 43.731095] TCPv6 6KB 6KB [ 43.736446] nf_conntrack 20KB 22KB [ 43.741851] t10_alua_lu_gp_cache 0KB 3KB [ 43.747461] sd_ext_cdb 0KB 7KB [ 43.752847] scsi_sense_cache 1056KB 1064KB [ 43.758289] virtio_scsi_cmd 16KB 16KB [ 43.763674] sgpool-128 8KB 8KB [ 43.769029] sgpool-64 4KB 12KB [ 43.774415] sgpool-32 2KB 15KB [ 43.779775] sgpool-16 1KB 7KB [ 43.785157] sgpool-8 0KB 7KB [ 43.790517] mqueue_inode_cache 1KB 7KB [ 43.795997] bio_post_read_ctx 14KB 15KB [ 43.801435] bio-2 14KB 15KB [ 43.806776] jfs_mp 7KB 7KB [ 43.812177] cifs_small_rq 15KB 16KB [ 43.817527] cifs_request 67KB 67KB [ 43.822907] cifs_mpx_ids 0KB 7KB [ 43.828269] nfs_commit_data 3KB 14KB [ 43.833651] nfs_write_data 34KB 44KB [ 43.839021] ext4_system_zone 1KB 7KB [ 43.844416] bio-1 1KB 7KB [ 43.849779] rpc_buffers 17KB 25KB [ 43.855162] rpc_tasks 2KB 7KB [ 43.860518] UNIX 416KB 416KB [ 43.865912] tcp_bind_bucket 0KB 4KB [ 43.871319] ip_fib_trie 0KB 3KB [ 43.876665] ip_fib_alias 0KB 3KB [ 43.882040] ip_dst_cache 2KB 8KB [ 43.887396] RAW 6KB 7KB [ 43.892789] UDP 25KB 40KB [ 43.898137] request_sock_TCP 0KB 3KB [ 43.903518] TCP 8KB 11KB [ 43.908873] hugetlbfs_inode_cache 3KB 15KB [ 43.914606] fscache_cookie_jar 1KB 11KB [ 43.920143] eventpoll_pwq 36KB 91KB [ 43.925545] eventpoll_epi 62KB 145KB [ 43.930964] inotify_inode_mark 6KB 11KB [ 43.936399] request_queue 215KB 309KB [ 43.941772] blkdev_requests 1KB 3KB [ 43.947122] blkdev_ioc 4KB 15KB [ 43.952509] bio-0 91KB 176KB [ 43.957865] biovec-max 1237KB 1262KB [ 43.963247] biovec-64 23KB 55KB [ 43.968601] biovec-16 3KB 15KB [ 43.973994] bio_integrity_payload 1KB 8KB [ 43.979695] khugepaged_mm_slot 1KB 3KB [ 43.985180] uid_cache 1KB 4KB [ 43.990532] dmaengine-unmap-2 0KB 3KB [ 43.995927] skbuff_fclone_cache 318KB 318KB [ 44.001502] skbuff_head_cache 1743KB 1905KB [ 44.006846] configfs_dir_cache 3KB 7KB [ 44.012310] file_lock_cache 100KB 106KB [ 44.017668] file_lock_ctx 9KB 15KB [ 44.023050] fsnotify_mark_connector 2KB 3KB [ 44.028927] shmem_inode_cache 7786KB 7789KB [ 44.034309] task_delay_info 106KB 426KB [ 44.039664] taskstats 0KB 3KB [ 44.045045] proc_dir_entry 302KB 307KB [ 44.050400] pde_opener 36KB 77KB [ 44.055789] seq_file 379KB 736KB [ 44.061183] sigqueue 18KB 55KB [ 44.066534] kernfs_node_cache 9950KB 9961KB [ 44.071917] mnt_cache 68KB 80KB [ 44.077272] filp 10355KB 10357KB [ 44.082653] names_cache 178393KB 178415KB [ 44.088009] iint_cache 80KB 83KB [ 44.093403] key_jar 4KB 7KB [ 44.098755] nsproxy 0KB 3KB [ 44.104139] vm_area_struct 2170KB 2730KB [ 44.109495] mm_struct 248KB 494KB [ 44.114881] fs_cache 96KB 336KB [ 44.120235] files_cache 240KB 607KB [ 44.125629] signal_cache 508KB 1365KB [ 44.131033] sighand_cache 508KB 638KB [ 44.136380] task_struct 1843KB 1843KB [ 44.141753] cred_jar 1132KB 1984KB [ 44.147104] anon_vma_chain 780KB 1102KB [ 44.152491] anon_vma 210KB 331KB [ 44.157845] pid 73KB 320KB [ 44.163224] Acpi-Operand 157KB 202KB [ 44.168578] Acpi-ParseExt 8KB 11KB [ 44.173977] Acpi-Parse 41KB 51KB [ 44.179328] Acpi-State 52KB 70KB [ 44.184712] Acpi-Namespace 20KB 27KB [ 44.190068] numa_policy 0KB 3KB [ 44.195461] debug_objects_cache 648KB 683KB [ 44.201031] trace_event_file 297KB 298KB [ 44.206374] ftrace_event_field 398KB 401KB [ 44.211867] pool_workqueue 79KB 84KB [ 44.217216] page->ptl 214KB 553KB [ 44.222615] kmalloc-2097152 2050KB 2050KB [ 44.227962] kmalloc-524288 2056KB 2056KB [ 44.233343] kmalloc-262144 1290KB 1290KB [ 44.238699] kmalloc-131072 650KB 650KB [ 44.244080] kmalloc-65536 264KB 330KB [ 44.249437] kmalloc-32768 660KB 660KB [ 44.254830] kmalloc-16384 247KB 297KB [ 44.260180] kmalloc-8192 1105KB 1146KB [ 44.265562] kmalloc-4096 9311KB 9371KB [ 44.270966] kmalloc-2048 6370KB 6375KB [ 44.276320] kmalloc-1024 3429KB 3480KB [ 44.281703] kmalloc-512 3045KB 5070KB [ 44.287060] kmalloc-256 1958KB 2418KB [ 44.293351] kmalloc-128 446KB 492KB [ 44.298782] kmalloc-96 2554KB 2572KB [ 44.304808] kmalloc-64 2354KB 2448KB executing program [ 44.310193] kmalloc-32 1028KB 1866KB [ 44.316343] kmalloc-192 1027KB 1832KB [ 44.322081] kmem_cache 177KB 183KB [ 44.327492] Out of memory (oom_kill_allocating_task): Kill process 8113 (syz-executor533) score 0 or sacrifice child [ 44.338501] Killed process 8113 (syz-executor533) total-vm:17440kB, anon-rss:2100kB, file-rss:0kB, shmem-rss:0kB [ 44.349438] oom_reaper: reaped process 8113 (syz-executor533), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 44.362724] FAULT_INJECTION: forcing a failure. [ 44.362724] name failslab, interval 1, probability 0, space 0, times 1 [ 44.373909] CPU: 1 PID: 8116 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 [ 44.381764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 44.391099] Call Trace: [ 44.393672] dump_stack+0x1fc/0x2ef [ 44.397280] should_fail.cold+0xa/0xf [ 44.401064] ? setup_fault_attr+0x200/0x200 [ 44.405366] ? mark_held_locks+0xf0/0xf0 [ 44.409404] ? lock_acquire+0x170/0x3c0 [ 44.413354] __should_failslab+0x115/0x180 [ 44.417568] should_failslab+0x5/0x10 [ 44.421346] __kmalloc+0x6d/0x3c0 [ 44.424778] ? tty_buffer_alloc+0x23f/0x2a0 [ 44.429076] ? __mutex_lock+0x368/0x1190 [ 44.433111] tty_buffer_alloc+0x23f/0x2a0 [ 44.437237] __tty_buffer_request_room+0x156/0x2a0 [ 44.442145] tty_insert_flip_string_fixed_flag+0x93/0x250 [ 44.447663] ? do_raw_spin_lock+0xcb/0x220 [ 44.451879] pty_write+0x126/0x1f0 [ 44.455403] n_tty_write+0xa03/0xff0 [ 44.459093] ? cache_grow_end+0x46/0x170 [ 44.463147] ? lock_downgrade+0x720/0x720 [ 44.467283] ? n_tty_open+0x160/0x160 [ 44.471066] ? do_wait_intr_irq+0x270/0x270 [ 44.475398] ? __might_fault+0x192/0x1d0 [ 44.479440] tty_write+0x496/0x810 [ 44.482963] ? n_tty_open+0x160/0x160 [ 44.486742] __vfs_write+0xf7/0x770 [ 44.490348] ? tty_compat_ioctl+0x270/0x270 [ 44.494659] ? common_file_perm+0x4e5/0x850 [ 44.498969] ? kernel_read+0x110/0x110 [ 44.502840] ? vm_insert_page+0x9c0/0x9c0 [ 44.506972] ? apparmor_getprocattr+0x11e0/0x11e0 [ 44.511800] ? security_file_permission+0x1c0/0x220 [ 44.516799] vfs_write+0x1f3/0x540 [ 44.520321] ksys_write+0x12b/0x2a0 [ 44.523925] ? __ia32_sys_read+0xb0/0xb0 [ 44.527966] ? trace_hardirqs_off_caller+0x6e/0x210 [ 44.532962] do_syscall_64+0xf9/0x620 [ 44.536745] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 44.541914] RIP: 0033:0x7fa5c6d45cf9 [ 44.545606] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 44.564660] RSP: 002b:00007ffe3dc330f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 44.572343] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fa5c6d45cf9 [ 44.579590] RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000003 [ 44.586839] RBP: 00007ffe3dc33110 R08: 0000000000000001 R09: 00007ffe3dc33090 [ 44.594087] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 44.601366] R13: 431bde82d7b634db R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 executing program [ 49.361997] FAULT_INJECTION: forcing a failure. [ 49.361997] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 49.373833] CPU: 0 PID: 8117 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 [ 49.381696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 49.391024] Call Trace: [ 49.393596] dump_stack+0x1fc/0x2ef [ 49.397205] should_fail.cold+0xa/0xf [ 49.400984] ? lock_acquire+0x170/0x3c0 [ 49.404938] ? setup_fault_attr+0x200/0x200 [ 49.409245] __alloc_pages_nodemask+0x239/0x2890 [ 49.413983] ? finish_task_switch+0x118/0x760 [ 49.418457] ? trace_hardirqs_on+0x55/0x210 [ 49.422773] ? __schedule+0x88f/0x2040 [ 49.426639] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 49.431461] ? mark_held_locks+0xf0/0xf0 [ 49.435507] ? io_schedule_timeout+0x140/0x140 [ 49.440087] ? lock_downgrade+0x720/0x720 [ 49.444227] ? ___preempt_schedule+0x16/0x18 [ 49.448632] alloc_pages_vma+0xf2/0x780 [ 49.452613] wp_page_copy+0x219/0x2c40 [ 49.456487] ? _vm_normal_page+0x132/0x510 [ 49.460705] ? follow_pte_pmd+0x60/0x60 [ 49.464657] ? lock_downgrade+0x720/0x720 [ 49.468784] do_wp_page+0x2d4/0x2210 [ 49.472482] ? finish_mkwrite_fault+0x640/0x640 [ 49.477129] ? __handle_mm_fault+0x15f6/0x41c0 [ 49.481691] ? mark_held_locks+0xf0/0xf0 [ 49.485734] __handle_mm_fault+0x258b/0x41c0 [ 49.490123] ? kernel_read+0x110/0x110 [ 49.493992] ? vm_insert_page+0x9c0/0x9c0 [ 49.498121] ? apparmor_getprocattr+0x11e0/0x11e0 [ 49.502944] ? lock_acquire+0x170/0x3c0 [ 49.506898] ? handle_mm_fault+0xb2/0xb10 [ 49.511024] handle_mm_fault+0x436/0xb10 [ 49.515065] __do_page_fault+0x68e/0xd60 [ 49.519107] ? trace_hardirqs_off_caller+0x6e/0x210 [ 49.524104] ? spurious_fault+0x840/0x840 [ 49.528240] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.533065] ? page_fault+0x8/0x30 [ 49.536604] page_fault+0x1e/0x30 [ 49.540037] RIP: 0033:0x7fa5c6d06ff5 [ 49.543736] Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c ae 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f [ 49.562617] RSP: 002b:00007ffe3dc330b0 EFLAGS: 00010246 [ 49.567958] RAX: 0000000000000000 RBX: 00007fa5c6daf140 RCX: 0000000000000001 [ 49.575205] RDX: 0000000000000001 RSI: 00007fa5c6daf140 RDI: 0000000000000000 [ 49.582799] RBP: 0000000000000000 R08: 0000000000000001 R09: 00007ffe3dc33090 [ 49.590045] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 49.597292] R13: 0000000000000001 R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 [ 49.605605] syz-executor533 invoked oom-killer: gfp_mask=0x0(), nodemask=(null), order=0, oom_score_adj=1000 [ 49.615614] syz-executor533 cpuset=/ mems_allowed=0-1 [ 49.621015] CPU: 0 PID: 8117 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 [ 49.628883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 49.638216] Call Trace: [ 49.640794] dump_stack+0x1fc/0x2ef [ 49.644403] dump_header+0x15d/0xc3f [ 49.648098] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 49.653177] ? ___ratelimit+0x319/0x590 [ 49.657130] oom_kill_process.cold+0x10/0x692 [ 49.661628] ? has_intersects_mems_allowed+0x1d6/0x290 [ 49.666885] out_of_memory+0x1072/0x1390 [ 49.670927] ? lock_acquire+0x170/0x3c0 [ 49.674880] ? oom_killer_disable+0x270/0x270 [ 49.679355] ? mutex_trylock+0x15f/0x1a0 [ 49.683392] pagefault_out_of_memory+0x102/0x120 [ 49.688125] ? out_of_memory+0x1390/0x1390 [ 49.692344] ? lock_downgrade+0x720/0x720 [ 49.696470] mm_fault_error+0x106/0x390 [ 49.700424] __do_page_fault+0xc34/0xd60 [ 49.704469] ? trace_hardirqs_off_caller+0x6e/0x210 [ 49.709463] ? spurious_fault+0x840/0x840 [ 49.713589] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.718412] ? page_fault+0x8/0x30 [ 49.721932] page_fault+0x1e/0x30 [ 49.725365] RIP: 0033:0x7fa5c6d06ff5 [ 49.729054] Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c ae 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f [ 49.748021] RSP: 002b:00007ffe3dc330b0 EFLAGS: 00010246 [ 49.753809] RAX: 0000000000000000 RBX: 00007fa5c6daf140 RCX: 0000000000000001 [ 49.761060] RDX: 0000000000000001 RSI: 00007fa5c6daf140 RDI: 0000000000000000 [ 49.768313] RBP: 0000000000000000 R08: 0000000000000001 R09: 00007ffe3dc33090 [ 49.775562] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 49.782808] R13: 0000000000000001 R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 [ 49.791376] Mem-Info: [ 49.793819] active_anon:2995 inactive_anon:4714 isolated_anon:0 [ 49.793819] active_file:5342 inactive_file:11909 isolated_file:0 [ 49.793819] unevictable:0 dirty:7871 writeback:0 unstable:0 [ 49.793819] slab_reclaimable:16175 slab_unreclaimable:112941 [ 49.793819] mapped:3853 shmem:4898 pagetables:338 bounce:0 [ 49.793819] free:1530647 free_pcp:584 free_cma:0 [ 49.827660] Node 0 active_anon:11980kB inactive_anon:18856kB active_file:21244kB inactive_file:47636kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:15412kB dirty:31484kB writeback:0kB shmem:19592kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 49.856004] Node 1 active_anon:0kB inactive_anon:0kB active_file:124kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 49.881816] Node 0 DMA free:15908kB min:204kB low:252kB high:300kB 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 [ 49.907996] lowmem_reserve[]: 0 2693 2695 2695 2695 [ 49.913039] Node 0 DMA32 free:2066200kB min:35996kB low:44992kB high:53988kB active_anon:11980kB inactive_anon:18856kB active_file:21244kB inactive_file:47636kB unevictable:0kB writepending:31484kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:6528kB pagetables:1352kB bounce:0kB free_pcp:2296kB local_pcp:1116kB free_cma:0kB [ 49.943207] lowmem_reserve[]: 0 0 1 1 1 [ 49.947178] Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 49.973054] lowmem_reserve[]: 0 0 0 0 0 [ 49.977028] Node 1 Normal free:4039432kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:124kB inactive_file:0kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 50.004653] lowmem_reserve[]: 0 0 0 0 0 [ 50.008630] 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 [ 50.022203] Node 0 DMA32: 1286*4kB (UE) 128*8kB (U) 189*16kB (UE) 150*32kB (UME) 27*64kB (UME) 7*128kB (UM) 5*256kB (UME) 3*512kB (UE) 4*1024kB (UME) 2*2048kB (ME) 498*4096kB (M) = 2067432kB [ 50.039380] Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB [ 50.050431] Node 1 Normal: 96*4kB (UME) 397*8kB (UM) 292*16kB (UE) 75*32kB (UME) 30*64kB (UME) 18*128kB (UM) 11*256kB (UME) 7*512kB (UME) 2*1024kB (M) 1*2048kB (U) 980*4096kB (M) = 4039432kB [ 50.067618] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 50.076475] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 50.085096] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 50.093953] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 50.102572] 22151 total pagecache pages [ 50.106530] 0 pages in swap cache [ 50.109997] Swap cache stats: add 0, delete 0, find 0/0 [ 50.115344] Free swap = 0kB [ 50.118339] Total swap = 0kB [ 50.121375] 2097051 pages RAM [ 50.124460] 0 pages HighMem/MovableOnly [ 50.128403] 369649 pages reserved [ 50.131868] 0 pages cma reserved [ 50.135216] Unreclaimable slab info: [ 50.138949] Name Used Total [ 50.144508] TIPC 1KB 7KB [ 50.149895] SCTPv6 2KB 6KB [ 50.155375] DCCPv6 2KB 7KB [ 50.160790] DCCP 2KB 7KB [ 50.166261] RXRPC 1KB 6KB [ 50.171644] rxrpc_call_jar 11KB 15KB [ 50.176999] fib6_nodes 0KB 4KB [ 50.182390] ip6_dst_cache 3KB 3KB [ 50.187746] RAWv6 10KB 20KB [ 50.193123] UDPv6 11KB 15KB [ 50.198482] TCPv6 6KB 6KB [ 50.203882] nf_conntrack 19KB 22KB [ 50.209335] t10_alua_lu_gp_cache 0KB 3KB [ 50.214941] sd_ext_cdb 0KB 7KB [ 50.220318] scsi_sense_cache 1056KB 1064KB [ 50.225674] virtio_scsi_cmd 16KB 16KB [ 50.231066] sgpool-128 8KB 8KB [ 50.236425] sgpool-64 4KB 12KB [ 50.241813] sgpool-32 2KB 15KB [ 50.247171] sgpool-16 1KB 7KB [ 50.252555] sgpool-8 0KB 7KB [ 50.257908] mqueue_inode_cache 1KB 7KB [ 50.263388] bio_post_read_ctx 14KB 15KB [ 50.268941] bio-2 14KB 15KB [ 50.274298] jfs_mp 7KB 7KB [ 50.279706] cifs_small_rq 15KB 16KB [ 50.285060] cifs_request 67KB 67KB [ 50.290443] cifs_mpx_ids 0KB 7KB [ 50.295811] nfs_commit_data 3KB 14KB [ 50.301199] nfs_write_data 34KB 44KB [ 50.306570] ext4_system_zone 1KB 7KB