lowmemorykiller: Killing 'syz-executor.5' (9026) (tgid 9017), adj 1000, to free 35984kB on behalf of 'syz-executor.2' (9155) because cache 59736kB is below limit 65536kB for oom_score_adj 12 Free memory is -13084kB above reserved ================================= [ INFO: inconsistent lock state ] 4.9.194+ #0 Not tainted --------------------------------- inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-R} usage. syz-executor.2/9155 [HC0[0]:SC0[0]:HE1:SE1] takes: (&mm->mmap_sem){+++++?}, at: [<00000000ce416cd3>] get_cmdline+0xa3/0x2d0 mm/util.c:641 mark_held_locks+0xb1/0x100 kernel/locking/lockdep.c:2660 __lockdep_trace_alloc kernel/locking/lockdep.c:2882 [inline] lockdep_trace_alloc+0x18c/0x2b0 kernel/locking/lockdep.c:2897 __alloc_pages_nodemask+0x143/0x1a80 mm/page_alloc.c:3803 __alloc_pages include/linux/gfp.h:433 [inline] __alloc_pages_node include/linux/gfp.h:446 [inline] alloc_pages_node include/linux/gfp.h:460 [inline] pmd_alloc_one arch/x86/include/asm/pgalloc.h:88 [inline] __pmd_alloc+0x4a/0x330 mm/memory.c:3742 pmd_alloc include/linux/mm.h:1625 [inline] alloc_new_pmd mm/mremap.c:64 [inline] move_page_tables+0xadb/0xd60 mm/mremap.c:212 shift_arg_pages+0x1ae/0x470 fs/exec.c:642 setup_arg_pages+0x60d/0x7c0 fs/exec.c:754 load_elf_binary+0xa84/0x4a90 fs/binfmt_elf.c:860 search_binary_handler fs/exec.c:1621 [inline] search_binary_handler+0x14f/0x700 fs/exec.c:1599 exec_binprm fs/exec.c:1663 [inline] do_execveat_common.isra.0+0xf81/0x1db0 fs/exec.c:1785 do_execve+0x3a/0x50 fs/exec.c:1829 run_init_process+0x33/0x37 init/main.c:904 try_to_run_init_process+0x18/0x48 init/main.c:913 kernel_init+0xf2/0x163 init/main.c:984 ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:375 irq event stamp: 55617 hardirqs last enabled at (55617): [<00000000d9bc582d>] vprintk_emit+0x25c/0x6f0 kernel/printk/printk.c:1897 hardirqs last disabled at (55616): [<000000001a06bf76>] vprintk_emit+0x6d/0x6f0 kernel/printk/printk.c:1801 softirqs last enabled at (54516): [<00000000cc1e8f07>] __do_softirq+0x474/0x964 kernel/softirq.c:314 softirqs last disabled at (54495): [<00000000e745aed8>] invoke_softirq kernel/softirq.c:368 [inline] softirqs last disabled at (54495): [<00000000e745aed8>] irq_exit+0x119/0x160 kernel/softirq.c:409 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&mm->mmap_sem); lock(&mm->mmap_sem); *** DEADLOCK *** 2 locks held by syz-executor.2/9155: #0: (&mm->mmap_sem){+++++?}, at: [<000000009814b8be>] vm_mmap_pgoff+0x13d/0x1c0 mm/util.c:327 #1: (shrinker_rwsem){++++..}, at: [<0000000062dec57b>] shrink_slab.part.0+0xb2/0xa20 mm/vmscan.c:472 stack backtrace: CPU: 1 PID: 9155 Comm: syz-executor.2 Not tainted 4.9.194+ #0 ffff880007ed70e0 ffffffff81b67001 00000000000000f0 ffff88019e6e2f80 ffffffff83cb0990 ffff88019e6e38a0 ffffffff84252000 ffff880007ed7158 ffffffff81408710 0000000000000000 ffffffff00000001 0000000000000001 Call Trace: [<00000000807fe932>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000807fe932>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000004c82e25a>] print_usage_bug kernel/locking/lockdep.c:2387 [inline] [<000000004c82e25a>] print_usage_bug.cold+0x452/0x5a2 kernel/locking/lockdep.c:2354 [<000000004903d3b0>] valid_state kernel/locking/lockdep.c:2400 [inline] [<000000004903d3b0>] mark_lock_irq kernel/locking/lockdep.c:2602 [inline] [<000000004903d3b0>] mark_lock+0x6c7/0x12e0 kernel/locking/lockdep.c:3065 [<0000000088409764>] mark_irqflags kernel/locking/lockdep.c:2958 [inline] [<0000000088409764>] __lock_acquire+0x5be/0x4390 kernel/locking/lockdep.c:3302 [<000000008d8624ad>] lock_acquire+0x133/0x3d0 kernel/locking/lockdep.c:3756 [<00000000f2318e40>] down_read+0x44/0xb0 kernel/locking/rwsem.c:22 [<00000000ce416cd3>] get_cmdline+0xa3/0x2d0 mm/util.c:641 [<00000000187cee2f>] handle_lmk_event+0x169/0x920 drivers/staging/android/lowmemorykiller.c:116 [<000000006449d98c>] lowmem_scan+0x6f3/0xb70 drivers/staging/android/lowmemorykiller.c:354 [<00000000e527b2de>] do_shrink_slab mm/vmscan.c:399 [inline] [<00000000e527b2de>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<00000000abe2381b>] shrink_slab mm/vmscan.c:466 [inline] [<00000000abe2381b>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000002aa0fc>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000002aa0fc>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000002aa0fc>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<00000000421c3a71>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<00000000421c3a71>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<00000000421c3a71>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<00000000421c3a71>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<0000000036cc8e28>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000036cc8e28>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000036cc8e28>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000036cc8e28>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<0000000036cc8e28>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [ 2052] 0 2052 142358 105619 247 5 0 0 syz-fuzzer [19188] 0 19188 18113 8733 24 4 0 0 syz-executor.3 [21224] 0 21224 18146 8711 25 3 0 0 syz-executor.3 [21244] 0 21244 18146 8712 25 3 0 0 syz-executor.3 [21248] 0 21248 18179 8715 26 3 0 0 syz-executor.3 [21638] 0 21638 18179 8749 26 4 0 0 syz-executor.3 [24096] 0 24096 18212 8750 27 4 0 0 syz-executor.3 [24485] 0 24485 18146 8715 25 3 0 0 syz-executor.3 [24491] 0 24491 18245 8723 27 3 0 0 syz-executor.3 [24520] 0 24520 18245 9526 28 4 0 0 syz-executor.3 [24866] 0 24866 18212 8750 26 4 0 0 syz-executor.3 [24870] 0 24870 18212 8750 26 4 0 0 syz-executor.3 [25139] 0 25139 18212 8749 26 4 0 0 syz-executor.3 [25141] 0 25141 18212 8749 26 4 0 0 syz-executor.3 [25886] 0 25886 18245 9415 27 4 0 0 syz-executor.3 [26666] 0 26666 18212 8749 26 4 0 0 syz-executor.3 [27328] 0 27328 18146 8745 26 4 0 0 syz-executor.3 [27728] 0 27728 34630 8760 28 4 0 0 syz-executor.3 [28398] 0 28398 18146 8747 27 4 0 0 syz-executor.3 [30061] 0 30061 18179 13230 32 3 0 0 syz-executor.3 [30105] 0 30105 18210 13258 32 3 0 0 syz-executor.3 [30199] 0 30199 18179 8748 26 4 0 0 syz-executor.3 [30215] 0 30215 18146 8745 26 4 0 0 syz-executor.3 [30772] 0 30772 18212 8718 25 3 0 0 syz-executor.3 [30832] 0 30832 18179 8716 25 3 0 0 syz-executor.3 [32591] 0 32591 18179 8748 26 4 0 0 syz-executor.3 [32639] 0 32639 18245 8752 27 4 0 0 syz-executor.3 [32650] 0 32650 18245 8752 27 4 0 0 syz-executor.3 [ 869] 0 869 18177 8716 25 3 0 0 syz-executor.3 [ 915] 0 915 18243 8720 25 3 0 0 syz-executor.3 [ 3660] 0 3660 18212 8750 26 4 0 0 syz-executor.3 [ 4692] 0 4692 18278 8754 26 4 0 0 syz-executor.3 [ 5157] 0 5157 18114 16 23 3 0 0 syz-executor.1 [ 5158] 0 5158 18113 8731 25 4 0 0 syz-executor.1 [ 5876] 0 5876 18179 8715 27 3 0 1000 syz-executor.1 [ 5898] 0 5898 18344 8727 27 3 0 1000 syz-executor.1 [ 6274] 0 6274 18311 8754 28 4 0 1000 syz-executor.1 [ 6465] 0 6465 5624 408 16 3 0 -1000 udevd [ 6560] 0 6560 18245 8753 26 4 0 0 syz-executor.3 [ 6718] 0 6718 18114 17 23 3 0 0 syz-executor.0 [ 6719] 0 6719 18113 8734 24 4 0 0 syz-executor.0 [ 6932] 0 6932 5364 171 15 3 0 -1000 udevd [ 7030] 0 7030 18146 8745 26 4 0 0 syz-executor.3 [ 7060] 0 7060 18114 15 23 3 0 0 syz-executor.4 [ 7061] 0 7061 18113 8731 24 4 0 0 syz-executor.4 [ 7737] 0 7737 18212 8751 26 4 0 0 syz-executor.3 [ 7925] 0 7925 18179 8746 28 4 0 1000 syz-executor.1 [ 7997] 0 7997 18146 8712 26 3 0 1000 syz-executor.4 [ 8014] 0 8014 18146 8702 24 3 0 1000 syz-executor.4 [ 8103] 0 8103 18212 8717 27 3 0 1000 syz-executor.4 [ 8238] 0 8238 18212 10503 29 4 0 0 syz-executor.3 [ 8297] 0 8297 18114 15 23 3 0 0 syz-executor.5 [ 8298] 0 8298 18113 8730 24 4 0 0 syz-executor.5 [ 8465] 0 8465 18278 8753 28 4 0 1000 syz-executor.1 [ 8497] 0 8497 18278 8753 28 4 0 1000 syz-executor.1 [ 8537] 0 8537 18179 8716 28 3 0 1000 syz-executor.1 [ 8587] 0 8587 18212 8715 25 3 0 1000 syz-executor.5 [ 8588] 0 8588 18245 8720 28 3 0 1000 syz-executor.1 [ 8621] 0 8621 18344 8724 26 3 0 1000 syz-executor.5 [ 8901] 0 8901 5364 171 15 3 0 -1000 udevd [ 8905] 0 8905 18212 8747 26 4 0 1000 syz-executor.5 [ 8916] 0 8916 5364 171 15 3 0 -1000 udevd [ 9026] 0 9017 18212 8747 26 4 0 1000 syz-executor.5 [ 9102] 0 9098 18245 4 30 4 0 1000 syz-executor.1 [ 9155] 0 9155 18114 17 23 3 0 0 syz-executor.2 Out of memory: Kill process 8588 (syz-executor.1) score 1005 or sacrifice child Killed process 8588 (syz-executor.1) total-vm:72980kB, anon-rss:192kB, file-rss:34688kB, shmem-rss:0kB syz-fuzzer invoked oom-killer: gfp_mask=0x24200ca(GFP_HIGHUSER_MOVABLE), nodemask=0, order=0, oom_score_adj=0 CPU: 1 PID: 16920 Comm: syz-fuzzer Not tainted 4.9.194+ #0 ffff8801a2e076f0 ffffffff81b67001 ffff8801a2e07a48 ffffffff833f1c30 0000000000000000 ffff8801a2e07a60 0000000000000000 ffff8801a2e07770 ffffffff81506e44 0000000000000000 0000000000000000 ffffffff8282ac45 Call Trace: [<00000000807fe932>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000807fe932>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000001a482ece>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<0000000095af24cc>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000ad8bec06>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000ad8bec06>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<0000000053fcca7f>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<0000000053fcca7f>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<0000000053fcca7f>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<00000000d314be49>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000d314be49>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000d314be49>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000d314be49>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<00000000d314be49>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<0000000063e619a1>] filemap_fault+0xb1f/0x1360 mm/filemap.c:2331 [<00000000c86955f0>] ext4_filemap_fault+0x72/0xa0 fs/ext4/inode.c:5854 [<00000000c3446089>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<00000000183ada5a>] do_read_fault mm/memory.c:3202 [inline] [<00000000183ada5a>] do_fault mm/memory.c:3338 [inline] [<00000000183ada5a>] handle_pte_fault mm/memory.c:3547 [inline] [<00000000183ada5a>] __handle_mm_fault mm/memory.c:3634 [inline] [<00000000183ada5a>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<000000000401d021>] __do_page_fault+0x3f0/0xa60 arch/x86/mm/fault.c:1401 [<00000000b25b61d3>] do_page_fault+0x28/0x30 arch/x86/mm/fault.c:1464 [<000000006e93709f>] page_fault+0x25/0x30 arch/x86/entry/entry_64.S:956 Mem-Info: active_anon:114243 inactive_anon:9459 isolated_anon:0 active_file:25 inactive_file:25 isolated_file:0 unevictable:0 dirty:6 writeback:0 unstable:0 slab_reclaimable:6005 slab_unreclaimable:60771 mapped:52244 shmem:584 pagetables:1970 bounce:0 free:35 free_pcp:132 free_cma:0 Node 0 active_anon:456972kB inactive_anon:37836kB active_file:100kB inactive_file:100kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208976kB dirty:24kB writeback:0kB shmem:2336kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes DMA32 free:92kB min:4696kB low:7712kB high:10728kB active_anon:86240kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:232kB kernel_stack:32kB pagetables:20kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:48kB min:5580kB low:9168kB high:12756kB active_anon:370732kB inactive_anon:37828kB active_file:100kB inactive_file:100kB unevictable:0kB writepending:24kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:24020kB slab_unreclaimable:242852kB kernel_stack:6528kB pagetables:7860kB bounce:0kB free_pcp:528kB local_pcp:204kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5365 170 16 3 0 -1000 udevd [ 1764] 0 1764 2492 574 9 3 0 0 dhclient [ 1903] 0 1903 14231 109 23 3 0 0 rsyslogd [ 1953] 0 1953 4724 51 15 3 0 0 cron [ 1972] 0 1972 3735 61 11 3 0 0 mcstransd [ 1978] 0 1978 12926 1232 26 3 0 0 restorecond [ 2004] 0 2004 12489 153 29 3 0 -1000 sshd [ 2034] 0 2034 3648 39 13 3 0 0 getty [ 2050] 0 2050 17820 198 38 3 0 0 sshd [ 2052] 0 2052 142358 105619 247 5 0 0 syz-fuzzer [19187] 0 19187 18114 15 23 3 0 0 syz-executor.3 [19188] 0 19188 18113 8733 24 4 0 0 syz-executor.3 [21224] 0 21224 18146 8711 25 3 0 0 syz-executor.3 [21244] 0 21244 18146 8712 25 3 0 0 syz-executor.3 [21248] 0 21248 18179 8715 26 3 0 0 syz-executor.3 [21638] 0 21638 18179 8749 26 4 0 0 syz-executor.3 [24096] 0 24096 18212 8750 27 4 0 0 syz-executor.3 [24485] 0 24485 18146 8715 25 3 0 0 syz-executor.3 [24491] 0 24491 18245 8723 27 3 0 0 syz-executor.3 [24520] 0 24520 18245 9526 28 4 0 0 syz-executor.3 [24866] 0 24866 18212 8750 26 4 0 0 syz-executor.3 [24870] 0 24870 18212 8750 26 4 0 0 syz-executor.3 [25139] 0 25139 18212 8749 26 4 0 0 syz-executor.3 [25141] 0 25141 18212 8749 26 4 0 0 syz-executor.3 [25886] 0 25886 18245 9415 27 4 0 0 syz-executor.3 [26666] 0 26666 18212 8749 26 4 0 0 syz-executor.3 [27328] 0 27328 18146 8745 26 4 0 0 syz-executor.3 [27728] 0 27728 34630 8760 28 4 0 0 syz-executor.3 [28398] 0 28398 18146 8747 27 4 0 0 syz-executor.3 [30061] 0 30061 18179 13230 32 3 0 0 syz-executor.3 [30105] 0 30105 18210 13258 32 3 0 0 syz-executor.3 [30199] 0 30199 18179 8748 26 4 0 0 syz-executor.3 [30215] 0 30215 18146 8745 26 4 0 0 syz-executor.3 [30772] 0 30772 18212 8718 25 3 0 0 syz-executor.3 [30832] 0 30832 18179 8716 25 3 0 0 syz-executor.3 [32591] 0 32591 18179 8748 26 4 0 0 syz-executor.3 [32639] 0 32639 18245 8752 27 4 0 0 syz-executor.3 [32650] 0 32650 18245 8752 27 4 0 0 syz-executor.3 [ 869] 0 869 18177 8716 25 3 0 0 syz-executor.3 [ 915] 0 915 18243 8720 25 3 0 0 syz-executor.3 [ 3660] 0 3660 18212 8750 26 4 0 0 syz-executor.3 [ 4692] 0 4692 18278 8754 26 4 0 0 syz-executor.3 [ 5157] 0 5157 18114 16 23 3 0 0 syz-executor.1 [ 5158] 0 5158 18113 8731 25 4 0 0 syz-executor.1 [ 5876] 0 5876 18179 8715 27 3 0 1000 syz-executor.1 [ 5898] 0 5898 18344 8727 27 3 0 1000 syz-executor.1 [ 6274] 0 6274 18311 8754 28 4 0 1000 syz-executor.1 [ 6465] 0 6465 5624 408 16 3 0 -1000 udevd [ 6560] 0 6560 18245 8753 26 4 0 0 syz-executor.3 [ 6718] 0 6718 18114 17 23 3 0 0 syz-executor.0 [ 6719] 0 6719 18113 8734 24 4 0 0 syz-executor.0 [ 6932] 0 6932 5364 171 15 3 0 -1000 udevd [ 7030] 0 7030 18146 8745 26 4 0 0 syz-executor.3 [ 7060] 0 7060 18114 15 23 3 0 0 syz-executor.4 [ 7061] 0 7061 18113 8731 24 4 0 0 syz-executor.4 [ 7737] 0 7737 18212 8751 26 4 0 0 syz-executor.3 [ 7925] 0 7925 18179 8746 28 4 0 1000 syz-executor.1 [ 7997] 0 7997 18146 8712 26 3 0 1000 syz-executor.4 [ 8014] 0 8014 18146 8702 24 3 0 1000 syz-executor.4 [ 8103] 0 8103 18212 8717 27 3 0 1000 syz-executor.4 [ 8238] 0 8238 18212 10503 29 4 0 0 syz-executor.3 [ 8297] 0 8297 18114 15 23 3 0 0 syz-executor.5 [ 8298] 0 8298 18113 8730 24 4 0 0 syz-executor.5 [ 8465] 0 8465 18278 8753 28 4 0 1000 syz-executor.1 [ 8497] 0 8497 18278 8753 28 4 0 1000 syz-executor.1 [ 8537] 0 8537 18179 8716 28 3 0 1000 syz-executor.1 [ 8587] 0 8587 18212 8715 25 3 0 1000 syz-executor.5 [ 8621] 0 8621 18344 8724 26 3 0 1000 syz-executor.5 [ 8901] 0 8901 5364 171 15 3 0 -1000 udevd [ 8905] 0 8905 18212 8747 26 4 0 1000 syz-executor.5 [ 8916] 0 8916 5364 171 15 3 0 -1000 udevd [ 9026] 0 9017 18212 8747 26 4 0 1000 syz-executor.5 [ 9102] 0 9098 18245 4 30 4 0 1000 syz-executor.1 [ 9155] 0 9155 18114 17 23 3 0 0 syz-executor.2 Out of memory: Kill process 8537 (syz-executor.1) score 1005 or sacrifice child Killed process 8537 (syz-executor.1) total-vm:72716kB, anon-rss:176kB, file-rss:34688kB, shmem-rss:0kB syz-fuzzer invoked oom-killer: gfp_mask=0x24200ca(GFP_HIGHUSER_MOVABLE), nodemask=0, order=0, oom_score_adj=0 CPU: 1 PID: 16920 Comm: syz-fuzzer Not tainted 4.9.194+ #0 ffff8801a2e076f0 ffffffff81b67001 ffff8801a2e07a48 ffffffff833f1c30 0000000000000000 ffff8801a2e07a60 0000000000000000 ffff8801a2e07770 ffffffff81506e44 0000000000000000 0000000000000000 ffffffff8282ac45 Call Trace: [<00000000807fe932>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000807fe932>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000001a482ece>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<0000000095af24cc>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000ad8bec06>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000ad8bec06>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<0000000053fcca7f>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<0000000053fcca7f>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<0000000053fcca7f>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<00000000d314be49>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000d314be49>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000d314be49>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000d314be49>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<00000000d314be49>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<0000000063e619a1>] filemap_fault+0xb1f/0x1360 mm/filemap.c:2331 [<00000000c86955f0>] ext4_filemap_fault+0x72/0xa0 fs/ext4/inode.c:5854 [<00000000c3446089>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<00000000183ada5a>] do_read_fault mm/memory.c:3202 [inline] [<00000000183ada5a>] do_fault mm/memory.c:3338 [inline] [<00000000183ada5a>] handle_pte_fault mm/memory.c:3547 [inline] [<00000000183ada5a>] __handle_mm_fault mm/memory.c:3634 [inline] [<00000000183ada5a>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<000000000401d021>] __do_page_fault+0x3f0/0xa60 arch/x86/mm/fault.c:1401 [<00000000b25b61d3>] do_page_fault+0x28/0x30 arch/x86/mm/fault.c:1464 [<000000006e93709f>] page_fault+0x25/0x30 arch/x86/entry/entry_64.S:956 Mem-Info: active_anon:114218 inactive_anon:9459 isolated_anon:0 active_file:25 inactive_file:25 isolated_file:0 unevictable:0 dirty:6 writeback:0 unstable:0 slab_reclaimable:6005 slab_unreclaimable:60771 mapped:52244 shmem:584 pagetables:1933 bounce:0 free:35 free_pcp:211 free_cma:0 Node 0 active_anon:456872kB inactive_anon:37836kB active_file:100kB inactive_file:100kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208976kB dirty:24kB writeback:0kB shmem:2336kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes DMA32 free:92kB min:4696kB low:7712kB high:10728kB active_anon:86240kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:232kB kernel_stack:32kB pagetables:20kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:48kB min:5580kB low:9168kB high:12756kB active_anon:370632kB inactive_anon:37828kB active_file:100kB inactive_file:100kB unevictable:0kB writepending:24kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:24020kB slab_unreclaimable:242852kB kernel_stack:6528kB pagetables:7712kB bounce:0kB free_pcp:844kB local_pcp:520kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5365 170 16 3 0 -1000 udevd [ 1764] 0 1764 2492 574 9 3 0 0 dhclient [ 1903] 0 1903 14231 109 23 3 0 0 rsyslogd [ 1953] 0 1953 4724 51 15 3 0 0 cron [ 1972] 0 1972 3735 61 11 3 0 0 mcstransd [ 1978] 0 1978 12926 1232 26 3 0 0 restorecond [ 2004] 0 2004 12489 153 29 3 0 -1000 sshd [ 2034] 0 2034 3648 39 13 3 0 0 getty [ 2050] 0 2050 17820 198 38 3 0 0 sshd [ 2052] 0 2052 142358 105619 247 5 0 0 syz-fuzzer [19187] 0 19187 18114 15 23 3 0 0 syz-executor.3 [19188] 0 19188 18113 8733 24 4 0 0 syz-executor.3 [21224] 0 21224 18146 8711 25 3 0 0 syz-executor.3 [21244] 0 21244 18146 8712 25 3 0 0 syz-executor.3 [21248] 0 21248 18179 8715 26 3 0 0 syz-executor.3 [21638] 0 21638 18179 8749 26 4 0 0 syz-executor.3 [24096] 0 24096 18212 8750 27 4 0 0 syz-executor.3 [24485] 0 24485 18146 8715 25 3 0 0 syz-executor.3 [24491] 0 24491 18245 8723 27 3 0 0 syz-executor.3 [24520] 0 24520 18245 9526 28 4 0 0 syz-executor.3 [24866] 0 24866 18212 8750 26 4 0 0 syz-executor.3 [24870] 0 24870 18212 8750 26 4 0 0 syz-executor.3 [25139] 0 25139 18212 8749 26 4 0 0 syz-executor.3 [25141] 0 25141 18212 8749 26 4 0 0 syz-executor.3 [25886] 0 25886 18245 9415 27 4 0 0 syz-executor.3 [26666] 0 26666 18212 8749 26 4 0 0 syz-executor.3 [27328] 0 27328 18146 8745 26 4 0 0 syz-executor.3 [27728] 0 27728 34630 8760 28 4 0 0 syz-executor.3 [28398] 0 28398 18146 8747 27 4 0 0 syz-executor.3 [30061] 0 30061 18179 13230 32 3 0 0 syz-executor.3 [30105] 0 30105 18210 13258 32 3 0 0 syz-executor.3 [30199] 0 30199 18179 8748 26 4 0 0 syz-executor.3 [30215] 0 30215 18146 8745 26 4 0 0 syz-executor.3 [30772] 0 30772 18212 8718 25 3 0 0 syz-executor.3 [30832] 0 30832 18179 8716 25 3 0 0 syz-executor.3 [32591] 0 32591 18179 8748 26 4 0 0 syz-executor.3 [32639] 0 32639 18245 8752 27 4 0 0 syz-executor.3 [32650] 0 32650 18245 8752 27 4 0 0 syz-executor.3 [ 869] 0 869 18177 8716 25 3 0 0 syz-executor.3 [ 915] 0 915 18243 8720 25 3 0 0 syz-executor.3 [ 3660] 0 3660 18212 8750 26 4 0 0 syz-executor.3 [ 4692] 0 4692 18278 8754 26 4 0 0 syz-executor.3 [ 5157] 0 5157 18114 16 23 3 0 0 syz-executor.1 [ 5158] 0 5158 18113 8731 25 4 0 0 syz-executor.1 [ 5876] 0 5876 18179 8715 27 3 0 1000 syz-executor.1 [ 5898] 0 5898 18344 8727 27 3 0 1000 syz-executor.1 [ 6274] 0 6274 18311 8754 28 4 0 1000 syz-executor.1 [ 6465] 0 6465 5624 408 16 3 0 -1000 udevd [ 6560] 0 6560 18245 8753 26 4 0 0 syz-executor.3 [ 6718] 0 6718 18114 17 23 3 0 0 syz-executor.0 [ 6719] 0 6719 18113 8734 24 4 0 0 syz-executor.0 [ 6932] 0 6932 5364 171 15 3 0 -1000 udevd [ 7030] 0 7030 18146 8745 26 4 0 0 syz-executor.3 [ 7060] 0 7060 18114 15 23 3 0 0 syz-executor.4 [ 7061] 0 7061 18113 8731 24 4 0 0 syz-executor.4 [ 7737] 0 7737 18212 8751 26 4 0 0 syz-executor.3 [ 7925] 0 7925 18179 8746 28 4 0 1000 syz-executor.1 [ 7997] 0 7997 18146 8712 26 3 0 1000 syz-executor.4 [ 8014] 0 8014 18146 8702 24 3 0 1000 syz-executor.4 [ 8103] 0 8103 18212 8717 27 3 0 1000 syz-executor.4 [ 8238] 0 8238 18212 10503 29 4 0 0 syz-executor.3 [ 8297] 0 8297 18114 15 23 3 0 0 syz-executor.5 [ 8298] 0 8298 18113 8730 24 4 0 0 syz-executor.5 [ 8465] 0 8465 18278 8753 28 4 0 1000 syz-executor.1 [ 8497] 0 8497 18278 8753 28 4 0 1000 syz-executor.1 [ 8587] 0 8587 18212 8715 25 3 0 1000 syz-executor.5 [ 8621] 0 8621 18344 8724 26 3 0 1000 syz-executor.5 [ 8901] 0 8901 5364 171 15 3 0 -1000 udevd [ 8905] 0 8905 18212 8747 26 4 0 1000 syz-executor.5 [ 8916] 0 8916 5364 171 15 3 0 -1000 udevd [ 9026] 0 9017 18212 8747 26 4 0 1000 syz-executor.5 [ 9102] 0 9098 18245 4 30 4 0 1000 syz-executor.1 [ 9155] 0 9155 18114 17 23 3 0 0 syz-executor.2 Out of memory: Kill process 6274 (syz-executor.1) score 1004 or sacrifice child Killed process 6274 (syz-executor.1) total-vm:73244kB, anon-rss:200kB, file-rss:34816kB, shmem-rss:0kB syz-fuzzer invoked oom-killer: gfp_mask=0x24200ca(GFP_HIGHUSER_MOVABLE), nodemask=0, order=0, oom_score_adj=0 CPU: 1 PID: 16920 Comm: syz-fuzzer Not tainted 4.9.194+ #0 ffff8801a2e076f0 ffffffff81b67001 ffff8801a2e07a48 ffffffff833f1c30 0000000000000000 ffff8801a2e07a60 0000000000000000 ffff8801a2e07770 ffffffff81506e44 0000000000000000 0000000000000000 ffffffff8282ac45 Call Trace: [<00000000807fe932>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000807fe932>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000001a482ece>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<0000000095af24cc>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000ad8bec06>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000ad8bec06>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<0000000053fcca7f>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<0000000053fcca7f>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<0000000053fcca7f>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<00000000d314be49>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000d314be49>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000d314be49>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000d314be49>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<00000000d314be49>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<0000000063e619a1>] filemap_fault+0xb1f/0x1360 mm/filemap.c:2331 [<00000000c86955f0>] ext4_filemap_fault+0x72/0xa0 fs/ext4/inode.c:5854 [<00000000c3446089>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<00000000183ada5a>] do_read_fault mm/memory.c:3202 [inline] [<00000000183ada5a>] do_fault mm/memory.c:3338 [inline] [<00000000183ada5a>] handle_pte_fault mm/memory.c:3547 [inline] [<00000000183ada5a>] __handle_mm_fault mm/memory.c:3634 [inline] [<00000000183ada5a>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<000000000401d021>] __do_page_fault+0x3f0/0xa60 arch/x86/mm/fault.c:1401 [<00000000b25b61d3>] do_page_fault+0x28/0x30 arch/x86/mm/fault.c:1464 [<000000006e93709f>] page_fault+0x25/0x30 arch/x86/entry/entry_64.S:956 Mem-Info: active_anon:114168 inactive_anon:9459 isolated_anon:0 active_file:25 inactive_file:25 isolated_file:0 unevictable:0 dirty:6 writeback:0 unstable:0 slab_reclaimable:6005 slab_unreclaimable:60771 mapped:52244 shmem:584 pagetables:1933 bounce:0 free:35 free_pcp:289 free_cma:0 Node 0 active_anon:456672kB inactive_anon:37836kB active_file:100kB inactive_file:100kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208976kB dirty:24kB writeback:0kB shmem:2336kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes DMA32 free:92kB min:4696kB low:7712kB high:10728kB active_anon:86240kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:232kB kernel_stack:32kB pagetables:20kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:48kB min:5580kB low:9168kB high:12756kB active_anon:370432kB inactive_anon:37828kB active_file:100kB inactive_file:100kB unevictable:0kB writepending:24kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:24020kB slab_unreclaimable:242852kB kernel_stack:6528kB pagetables:7712kB bounce:0kB free_pcp:1156kB local_pcp:520kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5365 170 16 3 0 -1000 udevd [ 1764] 0 1764 2492 574 9 3 0 0 dhclient [ 1903] 0 1903 14231 109 23 3 0 0 rsyslogd [ 1953] 0 1953 4724 51 15 3 0 0 cron [ 1972] 0 1972 3735 61 11 3 0 0 mcstransd [ 1978] 0 1978 12926 1232 26 3 0 0 restorecond [ 2004] 0 2004 12489 153 29 3 0 -1000 sshd [ 2034] 0 2034 3648 39 13 3 0 0 getty [ 2050] 0 2050 17820 198 38 3 0 0 sshd [ 2052] 0 2052 142358 105619 247 5 0 0 syz-fuzzer [19187] 0 19187 18114 15 23 3 0 0 syz-executor.3 [19188] 0 19188 18113 8733 24 4 0 0 syz-executor.3 [21224] 0 21224 18146 8711 25 3 0 0 syz-executor.3 [21244] 0 21244 18146 8712 25 3 0 0 syz-executor.3 [21248] 0 21248 18179 8715 26 3 0 0 syz-executor.3 [21638] 0 21638 18179 8749 26 4 0 0 syz-executor.3 [24096] 0 24096 18212 8750 27 4 0 0 syz-executor.3 [24485] 0 24485 18146 8715 25 3 0 0 syz-executor.3 [24491] 0 24491 18245 8723 27 3 0 0 syz-executor.3 [24520] 0 24520 18245 9526 28 4 0 0 syz-executor.3 [24866] 0 24866 18212 8750 26 4 0 0 syz-executor.3 [24870] 0 24870 18212 8750 26 4 0 0 syz-executor.3 [25139] 0 25139 18212 8749 26 4 0 0 syz-executor.3 [25141] 0 25141 18212 8749 26 4 0 0 syz-executor.3 [25886] 0 25886 18245 9415 27 4 0 0 syz-executor.3 [26666] 0 26666 18212 8749 26 4 0 0 syz-executor.3 [27328] 0 27328 18146 8745 26 4 0 0 syz-executor.3 [27728] 0 27728 34630 8760 28 4 0 0 syz-executor.3 [28398] 0 28398 18146 8747 27 4 0 0 syz-executor.3 [30061] 0 30061 18179 13230 32 3 0 0 syz-executor.3 [30105] 0 30105 18210 13258 32 3 0 0 syz-executor.3 [30199] 0 30199 18179 8748 26 4 0 0 syz-executor.3 [30215] 0 30215 18146 8745 26 4 0 0 syz-executor.3 [30772] 0 30772 18212 8718 25 3 0 0 syz-executor.3 [30832] 0 30832 18179 8716 25 3 0 0 syz-executor.3 [32591] 0 32591 18179 8748 26 4 0 0 syz-executor.3 [32639] 0 32639 18245 8752 27 4 0 0 syz-executor.3 [32650] 0 32650 18245 8752 27 4 0 0 syz-executor.3 [ 869] 0 869 18177 8716 25 3 0 0 syz-executor.3 [ 915] 0 915 18243 8720 25 3 0 0 syz-executor.3 [ 3660] 0 3660 18212 8750 26 4 0 0 syz-executor.3 [ 4692] 0 4692 18278 8754 26 4 0 0 syz-executor.3 [ 5157] 0 5157 18114 16 23 3 0 0 syz-executor.1 [ 5158] 0 5158 18113 8731 25 4 0 0 syz-executor.1 [ 5876] 0 5876 18179 8715 27 3 0 1000 syz-executor.1 [ 5898] 0 5898 18344 8727 27 3 0 1000 syz-executor.1 [ 6465] 0 6465 5624 408 16 3 0 -1000 udevd [ 6560] 0 6560 18245 8753 26 4 0 0 syz-executor.3 [ 6718] 0 6718 18114 17 23 3 0 0 syz-executor.0 [ 6719] 0 6719 18113 8734 24 4 0 0 syz-executor.0 [ 6932] 0 6932 5364 171 15 3 0 -1000 udevd [ 7030] 0 7030 18146 8745 26 4 0 0 syz-executor.3 [ 7060] 0 7060 18114 15 23 3 0 0 syz-executor.4 [ 7061] 0 7061 18113 8731 24 4 0 0 syz-executor.4 [ 7737] 0 7737 18212 8751 26 4 0 0 syz-executor.3 [ 7925] 0 7925 18179 8746 28 4 0 1000 syz-executor.1 [ 7997] 0 7997 18146 8712 26 3 0 1000 syz-executor.4 [ 8014] 0 8014 18146 8702 24 3 0 1000 syz-executor.4 [ 8103] 0 8103 18212 8717 27 3 0 1000 syz-executor.4 [ 8238] 0 8238 18212 10503 29 4 0 0 syz-executor.3 [ 8297] 0 8297 18114 15 23 3 0 0 syz-executor.5 [ 8298] 0 8298 18113 8730 24 4 0 0 syz-executor.5 [ 8465] 0 8465 18278 8753 28 4 0 1000 syz-executor.1 [ 8497] 0 8497 18278 8753 28 4 0 1000 syz-executor.1 [ 8587] 0 8587 18212 8715 25 3 0 1000 syz-executor.5 [ 8621] 0 8621 18344 8724 26 3 0 1000 syz-executor.5 [ 8901] 0 8901 5364 171 15 3 0 -1000 udevd [ 8905] 0 8905 18212 8747 26 4 0 1000 syz-executor.5 [ 8916] 0 8916 5364 171 15 3 0 -1000 udevd [ 9026] 0 9017 18212 8747 26 4 0 1000 syz-executor.5 [ 9102] 0 9098 18245 4 30 4 0 1000 syz-executor.1 [ 9155] 0 9155 18114 17 23 3 0 0 syz-executor.2 Out of memory: Kill process 8465 (syz-executor.1) score 1004 or sacrifice child Killed process 8465 (syz-executor.1) total-vm:73112kB, anon-rss:196kB, file-rss:34816kB, shmem-rss:0kB syz-fuzzer invoked oom-killer: gfp_mask=0x24200ca(GFP_HIGHUSER_MOVABLE), nodemask=0, order=0, oom_score_adj=0 CPU: 1 PID: 16920 Comm: syz-fuzzer Not tainted 4.9.194+ #0 ffff8801a2e076f0 ffffffff81b67001 ffff8801a2e07a48 ffffffff833f1c30 0000000000000000 ffff8801a2e07a60 0000000000000000 ffff8801a2e07770 ffffffff81506e44 0000000000000000 0000000000000000 ffffffff8282ac45 Call Trace: [<00000000807fe932>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000807fe932>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000001a482ece>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<0000000095af24cc>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000ad8bec06>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000ad8bec06>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<0000000053fcca7f>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<0000000053fcca7f>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<0000000053fcca7f>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<00000000d314be49>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000d314be49>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000d314be49>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000d314be49>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<00000000d314be49>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<0000000063e619a1>] filemap_fault+0xb1f/0x1360 mm/filemap.c:2331 [<00000000c86955f0>] ext4_filemap_fault+0x72/0xa0 fs/ext4/inode.c:5854 [<00000000c3446089>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<00000000183ada5a>] do_read_fault mm/memory.c:3202 [inline] [<00000000183ada5a>] do_fault mm/memory.c:3338 [inline] [<00000000183ada5a>] handle_pte_fault mm/memory.c:3547 [inline] [<00000000183ada5a>] __handle_mm_fault mm/memory.c:3634 [inline] [<00000000183ada5a>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<000000000401d021>] __do_page_fault+0x3f0/0xa60 arch/x86/mm/fault.c:1401 [<00000000b25b61d3>] do_page_fault+0x28/0x30 arch/x86/mm/fault.c:1464 [<000000006e93709f>] page_fault+0x25/0x30 arch/x86/entry/entry_64.S:956 Mem-Info: active_anon:114143 inactive_anon:9459 isolated_anon:0 active_file:25 inactive_file:25 isolated_file:0 unevictable:0 dirty:6 writeback:0 unstable:0 slab_reclaimable:6005 slab_unreclaimable:60771 mapped:52244 shmem:584 pagetables:1896 bounce:0 free:85 free_pcp:300 free_cma:0 Node 0 active_anon:456572kB inactive_anon:37836kB active_file:100kB inactive_file:100kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208976kB dirty:24kB writeback:0kB shmem:2336kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes DMA32 free:92kB min:4696kB low:7712kB high:10728kB active_anon:86240kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:232kB kernel_stack:32kB pagetables:20kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:248kB min:5580kB low:9168kB high:12756kB active_anon:370332kB inactive_anon:37828kB active_file:100kB inactive_file:100kB unevictable:0kB writepending:24kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:24020kB slab_unreclaimable:242852kB kernel_stack:6528kB pagetables:7564kB bounce:0kB free_pcp:1200kB local_pcp:520kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5365 170 16 3 0 -1000 udevd [ 1764] 0 1764 2492 574 9 3 0 0 dhclient [ 1903] 0 1903 14231 109 23 3 0 0 rsyslogd [ 1953] 0 1953 4724 51 15 3 0 0 cron [ 1972] 0 1972 3735 61 11 3 0 0 mcstransd [ 1978] 0 1978 12926 1232 26 3 0 0 restorecond [ 2004] 0 2004 12489 153 29 3 0 -1000 sshd [ 2034] 0 2034 3648 39 13 3 0 0 getty [ 2050] 0 2050 17820 198 38 3 0 0 sshd [ 2052] 0 2052 142358 105619 247 5 0 0 syz-fuzzer [19187] 0 19187 18114 15 23 3 0 0 syz-executor.3 [19188] 0 19188 18113 8733 24 4 0 0 syz-executor.3 [21224] 0 21224 18146 8711 25 3 0 0 syz-executor.3 [21244] 0 21244 18146 8712 25 3 0 0 syz-executor.3 [21248] 0 21248 18179 8715 26 3 0 0 syz-executor.3 [21638] 0 21638 18179 8749 26 4 0 0 syz-executor.3 [24096] 0 24096 18212 8750 27 4 0 0 syz-executor.3 [24485] 0 24485 18146 8715 25 3 0 0 syz-executor.3 [24491] 0 24491 18245 8723 27 3 0 0 syz-executor.3 [24520] 0 24520 18245 9526 28 4 0 0 syz-executor.3 [24866] 0 24866 18212 8750 26 4 0 0 syz-executor.3 [24870] 0 24870 18212 8750 26 4 0 0 syz-executor.3 [25139] 0 25139 18212 8749 26 4 0 0 syz-executor.3 [25141] 0 25141 18212 8749 26 4 0 0 syz-executor.3 [25886] 0 25886 18245 9415 27 4 0 0 syz-executor.3 [26666] 0 26666 18212 8749 26 4 0 0 syz-executor.3 [27328] 0 27328 18146 8745 26 4 0 0 syz-executor.3 [27728] 0 27728 34630 8760 28 4 0 0 syz-executor.3 [28398] 0 28398 18146 8747 27 4 0 0 syz-executor.3 [30061] 0 30061 18179 13230 32 3 0 0 syz-executor.3 [30105] 0 30105 18210 13258 32 3 0 0 syz-executor.3 [30199] 0 30199 18179 8748 26 4 0 0 syz-executor.3 [30215] 0 30215 18146 8745 26 4 0 0 syz-executor.3 [30772] 0 30772 18212 8718 25 3 0 0 syz-executor.3 [30832] 0 30832 18179 8716 25 3 0 0 syz-executor.3 [32591] 0 32591 18179 8748 26 4 0 0 syz-executor.3 [32639] 0 32639 18245 8752 27 4 0 0 syz-executor.3 [32650] 0 32650 18245 8752 27 4 0 0 syz-executor.3 [ 869] 0 869 18177 8716 25 3 0 0 syz-executor.3 [ 915] 0 915 18243 8720 25 3 0 0 syz-executor.3 [ 3660] 0 3660 18212 8750 26 4 0 0 syz-executor.3 [ 4692] 0 4692 18278 8754 26 4 0 0 syz-executor.3 [ 5157] 0 5157 18114 16 23 3 0 0 syz-executor.1 [ 5158] 0 5158 18113 8731 25 4 0 0 syz-executor.1 [ 5876] 0 5876 18179 8715 27 3 0 1000 syz-executor.1 [ 5898] 0 5898 18344 8727 27 3 0 1000 syz-executor.1 [ 6465] 0 6465 5624 408 16 3 0 -1000 udevd [ 6560] 0 6560 18245 8753 26 4 0 0 syz-executor.3 [ 6718] 0 6718 18114 17 23 3 0 0 syz-executor.0 [ 6719] 0 6719 18113 8734 24 4 0 0 syz-executor.0 [ 6932] 0 6932 5364 171 15 3 0 -1000 udevd [ 7030] 0 7030 18146 8745 26 4 0 0 syz-executor.3 [ 7060] 0 7060 18114 15 23 3 0 0 syz-executor.4 [ 7061] 0 7061 18113 8731 24 4 0 0 syz-executor.4 [ 7737] 0 7737 18212 8751 26 4 0 0 syz-executor.3 [ 7925] 0 7925 18179 8746 28 4 0 1000 syz-executor.1 [ 7997] 0 7997 18146 8712 26 3 0 1000 syz-executor.4 [ 8014] 0 8014 18146 8702 24 3 0 1000 syz-executor.4 [ 8103] 0 8103 18212 8717 27 3 0 1000 syz-executor.4 [ 8238] 0 8238 18212 10503 29 4 0 0 syz-executor.3 [ 8297] 0 8297 18114 15 23 3 0 0 syz-executor.5 [ 8298] 0 8298 18113 8730 24 4 0 0 syz-executor.5 [ 8587] 0 8587 18212 8715 25 3 0 1000 syz-executor.5 [ 8621] 0 8621 18344 8724 26 3 0 1000 syz-executor.5 [ 8901] 0 8901 5364 171 15 3 0 -1000 udevd [ 8905] 0 8905 18212 8747 26 4 0 1000 syz-executor.5 [ 8916] 0 8916 5364 171 15 3 0 -1000 udevd [ 9026] 0 9017 18212 8747 26 4 0 1000 syz-executor.5 [ 9102] 0 9098 18245 4 30 4 0 1000 syz-executor.1 [ 9155] 0 9155 18114 17 23 3 0 0 syz-executor.2 Out of memory: Kill process 7925 (syz-executor.1) score 1004 or sacrifice child Killed process 7925 (syz-executor.1) total-vm:72716kB, anon-rss:168kB, file-rss:34816kB, shmem-rss:0kB syz-fuzzer invoked oom-killer: gfp_mask=0x24200ca(GFP_HIGHUSER_MOVABLE), nodemask=0, order=0, oom_score_adj=0 CPU: 1 PID: 16920 Comm: syz-fuzzer Not tainted 4.9.194+ #0 ffff8801a2e076f0 ffffffff81b67001 ffff8801a2e07a48 ffffffff833f1c30 0000000000000000 ffff8801a2e07a60 0000000000000000 ffff8801a2e07770 ffffffff81506e44 0000000000000000 0000000000000000 ffffffff8282ac45 Call Trace: [<00000000807fe932>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000807fe932>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000001a482ece>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<0000000095af24cc>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000ad8bec06>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000ad8bec06>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<0000000053fcca7f>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<0000000053fcca7f>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<0000000053fcca7f>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<00000000d314be49>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000d314be49>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000d314be49>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000d314be49>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<00000000d314be49>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<0000000063e619a1>] filemap_fault+0xb1f/0x1360 mm/filemap.c:2331 [<00000000c86955f0>] ext4_filemap_fault+0x72/0xa0 fs/ext4/inode.c:5854 [<00000000c3446089>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<00000000183ada5a>] do_read_fault mm/memory.c:3202 [inline] [<00000000183ada5a>] do_fault mm/memory.c:3338 [inline] [<00000000183ada5a>] handle_pte_fault mm/memory.c:3547 [inline] [<00000000183ada5a>] __handle_mm_fault mm/memory.c:3634 [inline] [<00000000183ada5a>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<000000000401d021>] __do_page_fault+0x3f0/0xa60 arch/x86/mm/fault.c:1401 [<00000000b25b61d3>] do_page_fault+0x28/0x30 arch/x86/mm/fault.c:1464 [<000000006e93709f>] page_fault+0x25/0x30 arch/x86/entry/entry_64.S:956 Mem-Info: active_anon:114093 inactive_anon:9459 isolated_anon:0 active_file:25 inactive_file:25 isolated_file:0 unevictable:0 dirty:6 writeback:0 unstable:0 slab_reclaimable:6005 slab_unreclaimable:60771 mapped:52244 shmem:584 pagetables:1896 bounce:0 free:85 free_pcp:339 free_cma:0 Node 0 active_anon:456372kB inactive_anon:37836kB active_file:100kB inactive_file:100kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208976kB dirty:24kB writeback:0kB shmem:2336kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes DMA32 free:92kB min:4696kB low:7712kB high:10728kB active_anon:86240kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:232kB kernel_stack:32kB pagetables:20kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:248kB min:5580kB low:9168kB high:12756kB active_anon:370132kB inactive_anon:37828kB active_file:100kB inactive_file:100kB unevictable:0kB writepending:24kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:24020kB slab_unreclaimable:242852kB kernel_stack:6528kB pagetables:7564kB bounce:0kB free_pcp:1356kB local_pcp:676kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5365 170 16 3 0 -1000 udevd [ 1764] 0 1764 2492 574 9 3 0 0 dhclient [ 1903] 0 1903 14231 109 23 3 0 0 rsyslogd [ 1953] 0 1953 4724 51 15 3 0 0 cron [ 1972] 0 1972 3735 61 11 3 0 0 mcstransd [ 1978] 0 1978 12926 1232 26 3 0 0 restorecond [ 2004] 0 2004 12489 153 29 3 0 -1000 sshd [ 2034] 0 2034 3648 39 13 3 0 0 getty [ 2050] 0 2050 17820 198 38 3 0 0 sshd [ 2052] 0 2052 142358 105619 247 5 0 0 syz-fuzzer [19187] 0 19187 18114 15 23 3 0 0 syz-executor.3 [19188] 0 19188 18113 8733 24 4 0 0 syz-executor.3 [21224] 0 21224 18146 8711 25 3 0 0 syz-executor.3 [21244] 0 21244 18146 8712 25 3 0 0 syz-executor.3 [21248] 0 21248 18179 8715 26 3 0 0 syz-executor.3 [21638] 0 21638 18179 8749 26 4 0 0 syz-executor.3 [24096] 0 24096 18212 8750 27 4 0 0 syz-executor.3 [24485] 0 24485 18146 8715 25 3 0 0 syz-executor.3 [24491] 0 24491 18245 8723 27 3 0 0 syz-executor.3 [24520] 0 24520 18245 9526 28 4 0 0 syz-executor.3 [24866] 0 24866 18212 8750 26 4 0 0 syz-executor.3 [24870] 0 24870 18212 8750 26 4 0 0 syz-executor.3 [25139] 0 25139 18212 8749 26 4 0 0 syz-executor.3 [25141] 0 25141 18212 8749 26 4 0 0 syz-executor.3 [25886] 0 25886 18245 9415 27 4 0 0 syz-executor.3 [26666] 0 26666 18212 8749 26 4 0 0 syz-executor.3 [27328] 0 27328 18146 8745 26 4 0 0 syz-executor.3 [27728] 0 27728 34630 8760 28 4 0 0 syz-executor.3 [28398] 0 28398 18146 8747 27 4 0 0 syz-executor.3 [30061] 0 30061 18179 13230 32 3 0 0 syz-executor.3 [30105] 0 30105 18210 13258 32 3 0 0 syz-executor.3 [30199] 0 30199 18179 8748 26 4 0 0 syz-executor.3 [30215] 0 30215 18146 8745 26 4 0 0 syz-executor.3 [30772] 0 30772 18212 8718 25 3 0 0 syz-executor.3 [30832] 0 30832 18179 8716 25 3 0 0 syz-executor.3 [32591] 0 32591 18179 8748 26 4 0 0 syz-executor.3 [32639] 0 32639 18245 8752 27 4 0 0 syz-executor.3 [32650] 0 32650 18245 8752 27 4 0 0 syz-executor.3 [ 869] 0 869 18177 8716 25 3 0 0 syz-executor.3 [ 915] 0 915 18243 8720 25 3 0 0 syz-executor.3 [ 3660] 0 3660 18212 8750 26 4 0 0 syz-executor.3 [ 4692] 0 4692 18278 8754 26 4 0 0 syz-executor.3 [ 5157] 0 5157 18114 16 23 3 0 0 syz-executor.1 [ 5158] 0 5158 18113 8731 25 4 0 0 syz-executor.1 [ 5876] 0 5876 18179 8715 27 3 0 1000 syz-executor.1 [ 5898] 0 5898 18344 8727 27 3 0 1000 syz-executor.1 [ 6465] 0 6465 5624 408 16 3 0 -1000 udevd [ 6560] 0 6560 18245 8753 26 4 0 0 syz-executor.3 [ 6718] 0 6718 18114 17 23 3 0 0 syz-executor.0 [ 6719] 0 6719 18113 8734 24 4 0 0 syz-executor.0 [ 6932] 0 6932 5364 171 15 3 0 -1000 udevd [ 7030] 0 7030 18146 8745 26 4 0 0 syz-executor.3 [ 7060] 0 7060 18114 15 23 3 0 0 syz-executor.4 [ 7061] 0 7061 18113 8731 24 4 0 0 syz-executor.4 [ 7737] 0 7737 18212 8751 26 4 0 0 syz-executor.3 [ 7997] 0 7997 18146 8712 26 3 0 1000 syz-executor.4 [ 8014] 0 8014 18146 8702 24 3 0 1000 syz-executor.4 [ 8103] 0 8103 18212 8717 27 3 0 1000 syz-executor.4 [ 8238] 0 8238 18212 10503 29 4 0 0 syz-executor.3 [ 8297] 0 8297 18114 15 23 3 0 0 syz-executor.5 [ 8298] 0 8298 18113 8730 24 4 0 0 syz-executor.5 [ 8587] 0 8587 18212 8715 25 3 0 1000 syz-executor.5 [ 8621] 0 8621 18344 8724 26 3 0 1000 syz-executor.5 [ 8901] 0 8901 5364 171 15 3 0 -1000 udevd [ 8905] 0 8905 18212 8747 26 4 0 1000 syz-executor.5 [ 8916] 0 8916 5364 171 15 3 0 -1000 udevd [ 9026] 0 9017 18212 8747 26 4 0 1000 syz-executor.5 [ 9102] 0 9098 18245 4 30 4 0 1000 syz-executor.1 [ 9155] 0 9155 18114 17 23 3 0 0 syz-executor.2 Out of memory: Kill process 8905 (syz-executor.5) score 1004 or sacrifice child Killed process 8905 (syz-executor.5) total-vm:72848kB, anon-rss:172kB, file-rss:34816kB, shmem-rss:0kB syz-fuzzer invoked oom-killer: gfp_mask=0x24200ca(GFP_HIGHUSER_MOVABLE), nodemask=0, order=0, oom_score_adj=0 CPU: 1 PID: 16920 Comm: syz-fuzzer Not tainted 4.9.194+ #0 ffff8801a2e076f0 ffffffff81b67001 ffff8801a2e07a48 ffffffff833f1c30 0000000000000000 ffff8801a2e07a60 0000000000000000 ffff8801a2e07770 ffffffff81506e44 0000000000000000 0000000000000000 ffffffff8282ac45 Call Trace: [<00000000807fe932>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000807fe932>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000001a482ece>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<0000000095af24cc>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000ad8bec06>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000ad8bec06>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<0000000053fcca7f>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<0000000053fcca7f>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<0000000053fcca7f>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<00000000d314be49>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000d314be49>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000d314be49>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000d314be49>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<00000000d314be49>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<0000000063e619a1>] filemap_fault+0xb1f/0x1360 mm/filemap.c:2331 [<00000000c86955f0>] ext4_filemap_fault+0x72/0xa0 fs/ext4/inode.c:5854 [<00000000c3446089>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<00000000183ada5a>] do_read_fault mm/memory.c:3202 [inline] [<00000000183ada5a>] do_fault mm/memory.c:3338 [inline] [<00000000183ada5a>] handle_pte_fault mm/memory.c:3547 [inline] [<00000000183ada5a>] __handle_mm_fault mm/memory.c:3634 [inline] [<00000000183ada5a>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<000000000401d021>] __do_page_fault+0x3f0/0xa60 arch/x86/mm/fault.c:1401 [<00000000b25b61d3>] do_page_fault+0x28/0x30 arch/x86/mm/fault.c:1464 [<000000006e93709f>] page_fault+0x25/0x30 arch/x86/entry/entry_64.S:956 Mem-Info: active_anon:114043 inactive_anon:9459 isolated_anon:0 active_file:25 inactive_file:25 isolated_file:0 unevictable:0 dirty:6 writeback:0 unstable:0 slab_reclaimable:6005 slab_unreclaimable:60668 mapped:52244 shmem:584 pagetables:1859 bounce:0 free:297 free_pcp:340 free_cma:0 Node 0 active_anon:456172kB inactive_anon:37836kB active_file:100kB inactive_file:100kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208976kB dirty:24kB writeback:0kB shmem:2336kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes DMA32 free:92kB min:4696kB low:7712kB high:10728kB active_anon:86240kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:232kB kernel_stack:32kB pagetables:20kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:1096kB min:5580kB low:9168kB high:12756kB active_anon:369932kB inactive_anon:37828kB active_file:100kB inactive_file:100kB unevictable:0kB writepending:24kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:24020kB slab_unreclaimable:242440kB kernel_stack:6528kB pagetables:7416kB bounce:0kB free_pcp:1360kB local_pcp:676kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5365 170 16 3 0 -1000 udevd [ 1764] 0 1764 2492 574 9 3 0 0 dhclient [ 1903] 0 1903 14231 109 23 3 0 0 rsyslogd [ 1953] 0 1953 4724 51 15 3 0 0 cron [ 1972] 0 1972 3735 61 11 3 0 0 mcstransd [ 1978] 0 1978 12926 1232 26 3 0 0 restorecond [ 2004] 0 2004 12489 153 29 3 0 -1000 sshd [ 2034] 0 2034 3648 39 13 3 0 0 getty [ 2050] 0 2050 17820 198 38 3 0 0 sshd [ 2052] 0 2052 142358 105619 247 5 0 0 syz-fuzzer [19187] 0 19187 18114 15 23 3 0 0 syz-executor.3 [19188] 0 19188 18113 8733 24 4 0 0 syz-executor.3 [21224] 0 21224 18146 8711 25 3 0 0 syz-executor.3 [21244] 0 21244 18146 8712 25 3 0 0 syz-executor.3 [21248] 0 21248 18179 8715 26 3 0 0 syz-executor.3 [21638] 0 21638 18179 8749 26 4 0 0 syz-executor.3 [24096] 0 24096 18212 8750 27 4 0 0 syz-executor.3 [24485] 0 24485 18146 8715 25 3 0 0 syz-executor.3 [24491] 0 24491 18245 8723 27 3 0 0 syz-executor.3 [24520] 0 24520 18245 9526 28 4 0 0 syz-executor.3 [24866] 0 24866 18212 8750 26 4 0 0 syz-executor.3 [24870] 0 24870 18212 8750 26 4 0 0 syz-executor.3 [25139] 0 25139 18212 8749 26 4 0 0 syz-executor.3 [25141] 0 25141 18212 8749 26 4 0 0 syz-executor.3 [25886] 0 25886 18245 9415 27 4 0 0 syz-executor.3 [26666] 0 26666 18212 8749 26 4 0 0 syz-executor.3 [27328] 0 27328 18146 8745 26 4 0 0 syz-executor.3 [27728] 0 27728 34630 8760 28 4 0 0 syz-executor.3 [28398] 0 28398 18146 8747 27 4 0 0 syz-executor.3 [30061] 0 30061 18179 13230 32 3 0 0 syz-executor.3 [30105] 0 30105 18210 13258 32 3 0 0 syz-executor.3 [30199] 0 30199 18179 8748 26 4 0 0 syz-executor.3 [30215] 0 30215 18146 8745 26 4 0 0 syz-executor.3 [30772] 0 30772 18212 8718 25 3 0 0 syz-executor.3 [30832] 0 30832 18179 8716 25 3 0 0 syz-executor.3 [32591] 0 32591 18179 8748 26 4 0 0 syz-executor.3 [32639] 0 32639 18245 8752 27 4 0 0 syz-executor.3 [32650] 0 32650 18245 8752 27 4 0 0 syz-executor.3 [ 869] 0 869 18177 8716 25 3 0 0 syz-executor.3 [ 915] 0 915 18243 8720 25 3 0 0 syz-executor.3 [ 3660] 0 3660 18212 8750 26 4 0 0 syz-executor.3 [ 4692] 0 4692 18278 8754 26 4 0 0 syz-executor.3 [ 5157] 0 5157 18114 16 23 3 0 0 syz-executor.1 [ 5158] 0 5158 18113 8731 25 4 0 0 syz-executor.1 [ 5876] 0 5876 18179 8715 27 3 0 1000 syz-executor.1 [ 5898] 0 5898 18344 8727 27 3 0 1000 syz-executor.1 [ 6465] 0 6465 5624 408 16 3 0 -1000 udevd [ 6560] 0 6560 18245 8753 26 4 0 0 syz-executor.3 [ 6718] 0 6718 18114 17 23 3 0 0 syz-executor.0 [ 6719] 0 6719 18113 8734 24 4 0 0 syz-executor.0 [ 6932] 0 6932 5364 171 15 3 0 -1000 udevd [ 7030] 0 7030 18146 8745 26 4 0 0 syz-executor.3 [ 7060] 0 7060 18114 15 23 3 0 0 syz-executor.4 [ 7061] 0 7061 18113 8731 24 4 0 0 syz-executor.4 [ 7737] 0 7737 18212 8751 26 4 0 0 syz-executor.3 [ 7997] 0 7997 18146 8712 26 3 0 1000 syz-executor.4 [ 8014] 0 8014 18146 8702 24 3 0 1000 syz-executor.4 [ 8103] 0 8103 18212 8717 27 3 0 1000 syz-executor.4 [ 8238] 0 8238 18212 10503 29 4 0 0 syz-executor.3 [ 8297] 0 8297 18114 15 23 3 0 0 syz-executor.5 [ 8298] 0 8298 18113 8730 24 4 0 0 syz-executor.5 [ 8587] 0 8587 18212 8715 25 3 0 1000 syz-executor.5 [ 8621] 0 8621 18344 8724 26 3 0 1000 syz-executor.5 [ 8901] 0 8901 5364 171 15 3 0 -1000 udevd [ 8916] 0 8916 5364 171 15 3 0 -1000 udevd [ 9026] 0 9017 18212 8747 26 4 0 1000 syz-executor.5 [ 9102] 0 9098 18245 4 30 4 0 1000 syz-executor.1 [ 9155] 0 9155 18114 17 23 3 0 0 syz-executor.2 Out of memory: Kill process 9017 (syz-executor.5) score 1004 or sacrifice child Killed process 9026 (syz-executor.5) total-vm:72848kB, anon-rss:172kB, file-rss:34816kB, shmem-rss:0kB oom_reaper: reaped process 9026 (syz-executor.5), now anon-rss:0kB, file-rss:12kB, shmem-rss:0kB syz-executor.1 invoked oom-killer: gfp_mask=0x2400840(GFP_NOFS|__GFP_NOFAIL), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 8537 Comm: syz-executor.1 Not tainted 4.9.194+ #0 ffff8801c7d3ee78 ffffffff81b67001 ffff8801c7d3f1d0 ffffffff833f1c30 00000000000003e8 ffff8801c7d3f1e8 0000000000000000 ffff8801c7d3eef8 ffffffff81506e44 0000000000000000 00000000000003e8 ffffffff8282ac45 Call Trace: [<00000000807fe932>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000807fe932>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000001a482ece>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<0000000095af24cc>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000ad8bec06>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000ad8bec06>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<000000006eda9d50>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<000000006eda9d50>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<000000006eda9d50>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<00000000d314be49>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000d314be49>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000d314be49>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000d314be49>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<00000000d314be49>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<000000006eda3295>] find_or_create_page include/linux/pagemap.h:310 [inline] [<000000006eda3295>] ext4_mb_load_buddy_gfp+0x90a/0x1100 fs/ext4/mballoc.c:1172 [<00000000c549e217>] ext4_free_blocks+0x827/0x23d0 fs/ext4/mballoc.c:4834 [<000000000f62d143>] ext4_remove_blocks fs/ext4/extents.c:2585 [inline] [<000000000f62d143>] ext4_ext_rm_leaf fs/ext4/extents.c:2741 [inline] [<000000000f62d143>] ext4_ext_remove_space+0x21cd/0x3a90 fs/ext4/extents.c:2974 [<000000003479adb8>] ext4_ext_truncate+0x17e/0x280 fs/ext4/extents.c:4677 [<000000009d25a49e>] ext4_truncate+0x526/0x1300 fs/ext4/inode.c:4243 [<00000000de97da08>] ext4_evict_inode+0xc50/0x1270 fs/ext4/inode.c:265 [<000000009a39bd9f>] evict+0x2e9/0x630 fs/inode.c:553 [<00000000d66fbcc3>] iput_final fs/inode.c:1516 [inline] [<00000000d66fbcc3>] iput fs/inode.c:1543 [inline] [<00000000d66fbcc3>] iput+0x370/0x900 fs/inode.c:1528 [<0000000092257cc0>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369 [<00000000fc662e5d>] __dentry_kill+0x333/0x580 fs/dcache.c:571 [<0000000001a427eb>] dentry_kill fs/dcache.c:612 [inline] [<0000000001a427eb>] dput.part.0+0x509/0x7c0 fs/dcache.c:829 [<0000000054bdeb80>] dput+0x20/0x30 fs/dcache.c:791 [<00000000eab402da>] path_put+0x31/0x70 fs/namei.c:519 [<00000000dcd88501>] free_fs_struct+0x25/0x70 fs/fs_struct.c:90 [<0000000009f25218>] exit_fs+0xe7/0x120 fs/fs_struct.c:108 [<000000002e41019f>] do_exit+0x769/0x2aa0 kernel/exit.c:838 [<000000002158c220>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<0000000023c541ec>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<0000000045c738f5>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<00000000d9606597>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<00000000a2549a3f>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<00000000a2549a3f>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<00000000a2549a3f>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<000000000284cdf5>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:114018 inactive_anon:9459 isolated_anon:0 active_file:25 inactive_file:25 isolated_file:0 unevictable:0 dirty:6 writeback:0 unstable:0 slab_reclaimable:6005 slab_unreclaimable:60668 mapped:52244 shmem:584 pagetables:1859 bounce:0 free:322 free_pcp:341 free_cma:0 Node 0 active_anon:456072kB inactive_anon:37836kB active_file:100kB inactive_file:100kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208976kB dirty:24kB writeback:0kB shmem:2336kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? yes DMA32 free:92kB min:4696kB low:7712kB high:10728kB active_anon:86240kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:232kB kernel_stack:32kB pagetables:20kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:1196kB min:5580kB low:9168kB high:12756kB active_anon:369832kB inactive_anon:37828kB active_file:100kB inactive_file:100kB unevictable:0kB writepending:24kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:24020kB slab_unreclaimable:242440kB kernel_stack:6528kB pagetables:7416kB bounce:0kB free_pcp:1364kB local_pcp:676kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5365 170 16 3 0 -1000 udevd [ 1764] 0 1764 2492 574 9 3 0 0 dhclient [ 1903] 0 1903 14231 109 23 3 0 0 rsyslogd [ 1953] 0 1953 4724 51 15 3 0 0 cron [ 1972] 0 1972 3735 61 11 3 0 0 mcstransd [ 1978] 0 1978 12926 1232 26 3 0 0 restorecond [ 2004] 0 2004 12489 153 29 3 0 -1000 sshd [ 2034] 0 2034 3648 39 13 3 0 0 getty [ 2050] 0 2050 17820 198 38 3 0 0 sshd [ 2052] 0 2052 142358 105619 247 5 0 0 syz-fuzzer [19187] 0 19187 18114 15 23 3 0 0 syz-executor.3 [19188] 0 19188 18113 8733 24 4 0 0 syz-executor.3 [21224] 0 21224 18146 8711 25 3 0 0 syz-executor.3 [21244] 0 21244 18146 8712 25 3 0 0 syz-executor.3 [21248] 0 21248 18179 8715 26 3 0 0 syz-executor.3 [21638] 0 21638 18179 8749 26 4 0 0 syz-executor.3 [24096] 0 24096 18212 8750 27 4 0 0 syz-executor.3 [24485] 0 24485 18146 8715 25 3 0 0 syz-executor.3 [24491] 0 24491 18245 8723 27 3 0 0 syz-executor.3 [24520] 0 24520 18245 9526 28 4 0 0 syz-executor.3 [24866] 0 24866 18212 8750 26 4 0 0 syz-executor.3 [24870] 0 24870 18212 8750 26 4 0 0 syz-executor.3 [25139] 0 25139 18212 8749 26 4 0 0 syz-executor.3 [25141] 0 25141 18212 8749 26 4 0 0 syz-executor.3 [25886] 0 25886 18245 9415 27 4 0 0 syz-executor.3 [26666] 0 26666 18212 8749 26 4 0 0 syz-executor.3 [27328] 0 27328 18146 8745 26 4 0 0 syz-executor.3 [27728] 0 27728 34630 8760 28 4 0 0 syz-executor.3 [28398] 0 28398 18146 8747 27 4 0 0 syz-executor.3 [30061] 0 30061 18179 13230 32 3 0 0 syz-executor.3 [30105] 0 30105 18210 13258 32 3 0 0 syz-executor.3 [30199] 0 30199 18179 8748 26 4 0 0 syz-executor.3 [30215] 0 30215 18146 8745 26 4 0 0 syz-executor.3 [30772] 0 30772 18212 8718 25 3 0 0 syz-executor.3 [30832] 0 30832 18179 8716 25 3 0 0 syz-executor.3 [32591] 0 32591 18179 8748 26 4 0 0 syz-executor.3 [32639] 0 32639 18245 8752 27 4 0 0 syz-executor.3 [32650] 0 32650 18245 8752 27 4 0 0 syz-executor.3 [ 869] 0 869 18177 8716 25 3 0 0 syz-executor.3 [ 915] 0 915 18243 8720 25 3 0 0 syz-executor.3 [ 3660] 0 3660 18212 8750 26 4 0 0 syz-executor.3 [ 4692] 0 4692 18278 8754 26 4 0 0 syz-executor.3 [ 5157] 0 5157 18114 16 23 3 0 0 syz-executor.1 [ 5158] 0 5158 18113 8731 25 4 0 0 syz-executor.1 [ 5876] 0 5876 18179 8715 27 3 0 1000 syz-executor.1 [ 5898] 0 5898 18344 8727 27 3 0 1000 syz-executor.1 [ 6465] 0 6465 5624 408 16 3 0 -1000 udevd [ 6560] 0 6560 18245 8753 26 4 0 0 syz-executor.3 [ 6718] 0 6718 18114 17 23 3 0 0 syz-executor.0 [ 6719] 0 6719 18113 8734 24 4 0 0 syz-executor.0 [ 6932] 0 6932 5364 171 15 3 0 -1000 udevd [ 7030] 0 7030 18146 8745 26 4 0 0 syz-executor.3 [ 7060] 0 7060 18114 15 23 3 0 0 syz-executor.4 [ 7061] 0 7061 18113 8731 24 4 0 0 syz-executor.4 [ 7737] 0 7737 18212 8751 26 4 0 0 syz-executor.3 [ 7997] 0 7997 18146 8712 26 3 0 1000 syz-executor.4 [ 8014] 0 8014 18146 8702 24 3 0 1000 syz-executor.4 [ 8103] 0 8103 18212 8717 27 3 0 1000 syz-executor.4 [ 8238] 0 8238 18212 10503 29 4 0 0 syz-executor.3 [ 8297] 0 8297 18114 15 23 3 0 0 syz-executor.5 [ 8298] 0 8298 18113 8730 24 4 0 0 syz-executor.5 [ 8587] 0 8587 18212 8715 25 3 0 1000 syz-executor.5 [ 8621] 0 8621 18344 8724 26 3 0 1000 syz-executor.5 [ 8901] 0 8901 5364 171 15 3 0 -1000 udevd [ 8916] 0 8916 5364 171 15 3 0 -1000 udevd [ 9026] 0 9017 18212 3 26 4 0 1000 syz-executor.5 [ 9102] 0 9098 18245 4 30 4 0 1000 syz-executor.1 [ 9155] 0 9155 18114 17 23 3 0 0 syz-executor.2 Out of memory: Kill process 5898 (syz-executor.1) score 1004 or sacrifice child Killed process 5898 (syz-executor.1) total-vm:73376kB, anon-rss:220kB, file-rss:34688kB, shmem-rss:0kB syz-executor.1 invoked oom-killer: gfp_mask=0x2400840(GFP_NOFS|__GFP_NOFAIL), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 8537 Comm: syz-executor.1 Not tainted 4.9.194+ #0 ffff8801c7d3ee78 ffffffff81b67001 ffff8801c7d3f1d0 ffffffff833f1c30 00000000000003e8 ffff8801c7d3f1e8 0000000000000000 ffff8801c7d3eef8 ffffffff81506e44 0000000000000000 00000000000003e8 ffffffff8282ac45 Call Trace: [<00000000807fe932>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000807fe932>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000001a482ece>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<0000000095af24cc>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000ad8bec06>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000ad8bec06>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<000000006eda9d50>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<000000006eda9d50>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<000000006eda9d50>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<00000000d314be49>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000d314be49>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000d314be49>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000d314be49>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<00000000d314be49>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<00000000f71ce9df>] find_or_create_page include/linux/pagemap.h:310 [inline] [<00000000f71ce9df>] ext4_mb_load_buddy_gfp+0x659/0x1100 fs/ext4/mballoc.c:1208 [<00000000c549e217>] ext4_free_blocks+0x827/0x23d0 fs/ext4/mballoc.c:4834 [<000000000f62d143>] ext4_remove_blocks fs/ext4/extents.c:2585 [inline] [<000000000f62d143>] ext4_ext_rm_leaf fs/ext4/extents.c:2741 [inline] [<000000000f62d143>] ext4_ext_remove_space+0x21cd/0x3a90 fs/ext4/extents.c:2974 [<000000003479adb8>] ext4_ext_truncate+0x17e/0x280 fs/ext4/extents.c:4677 [<000000009d25a49e>] ext4_truncate+0x526/0x1300 fs/ext4/inode.c:4243 [<00000000de97da08>] ext4_evict_inode+0xc50/0x1270 fs/ext4/inode.c:265 [<000000009a39bd9f>] evict+0x2e9/0x630 fs/inode.c:553 [<00000000d66fbcc3>] iput_final fs/inode.c:1516 [inline] [<00000000d66fbcc3>] iput fs/inode.c:1543 [inline] [<00000000d66fbcc3>] iput+0x370/0x900 fs/inode.c:1528 [<0000000092257cc0>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369 [<00000000fc662e5d>] __dentry_kill+0x333/0x580 fs/dcache.c:571 [<0000000001a427eb>] dentry_kill fs/dcache.c:612 [inline] [<0000000001a427eb>] dput.part.0+0x509/0x7c0 fs/dcache.c:829 [<0000000054bdeb80>] dput+0x20/0x30 fs/dcache.c:791 [<00000000eab402da>] path_put+0x31/0x70 fs/namei.c:519