lowmemorykiller: Killing 'syz-executor.1' (8016) (tgid 8016), adj 1000, to free 35988kB on behalf of 'syz-executor.5' (8838) because cache 62584kB is below limit 65536kB for oom_score_adj 12 Free memory is -13348kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:905 in_atomic(): 0, irqs_disabled(): 0, pid: 8838, name: syz-executor.5 2 locks held by syz-executor.5/8838: #0: (shrinker_rwsem){++++..}, at: [<000000008c97ed9c>] shrink_slab.part.0+0xb2/0xa20 mm/vmscan.c:472 #1: (rcu_read_lock){......}, at: [<000000001ee62a84>] lowmem_scan+0x242/0xb50 drivers/staging/android/lowmemorykiller.c:272 Preemption disabled at: [<00000000210c51e6>] spin_lock include/linux/spinlock.h:302 [inline] [<00000000210c51e6>] task_lock include/linux/sched.h:3217 [inline] [<00000000210c51e6>] get_task_mm+0x20/0xc0 kernel/fork.c:1012 CPU: 1 PID: 8838 Comm: syz-executor.5 Not tainted 4.9.189+ #22 ffff88018f4872d0 ffffffff81b65c01 0000000000000000 0000000000000001 ffff88019ff68000 ffffffff810d1010 ffff88019ff68000 ffff88018f487308 ffffffff814018f3 ffff88019ff68000 ffffffff82a39fc0 0000000000000389 Call Trace: [<000000007a9a811f>] __dump_stack lib/dump_stack.c:15 [inline] [<000000007a9a811f>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000a1304782>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000ab3ce109>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<0000000034a02704>] mmput+0x28/0x370 kernel/fork.c:905 [<000000003ed338ef>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<000000004bfe0cb3>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<0000000083f60849>] do_shrink_slab mm/vmscan.c:399 [inline] [<0000000083f60849>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<0000000063361909>] shrink_slab mm/vmscan.c:466 [inline] [<0000000063361909>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<000000003b0032ec>] shrink_zones mm/vmscan.c:2751 [inline] [<000000003b0032ec>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<000000003b0032ec>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000008631ccce>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000008631ccce>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000008631ccce>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000008631ccce>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<000000003c957032>] __alloc_pages include/linux/gfp.h:433 [inline] [<000000003c957032>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<000000003c957032>] alloc_pages_node include/linux/gfp.h:460 [inline] [<000000003c957032>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<000000003c957032>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<000000005859e0ef>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<000000005859e0ef>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<000000005859e0ef>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<0000000002d820b0>] xt_alloc_entry_offsets+0x44/0x50 net/netfilter/x_tables.c:758 [<0000000051338ec9>] translate_table+0x215/0x1650 net/ipv4/netfilter/ip_tables.c:705 [<000000000b008844>] do_replace net/ipv4/netfilter/ip_tables.c:1157 [inline] [<000000000b008844>] do_ipt_set_ctl+0x2d4/0x470 net/ipv4/netfilter/ip_tables.c:1693 [<0000000041fb885b>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<0000000041fb885b>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<00000000819550ea>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<00000000819550ea>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000046f759e3>] raw_setsockopt+0xb3/0xd0 net/ipv4/raw.c:833 [<000000004888fbd8>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<000000006b878952>] SYSC_setsockopt net/socket.c:1786 [inline] [<000000006b878952>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<0000000087fe9594>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000034d1e447>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb ================================= [ INFO: inconsistent lock state ] 4.9.189+ #22 Tainted: G W --------------------------------- inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-R} usage. syz-executor.5/8838 [HC0[0]:SC0[0]:HE1:SE1] takes: (&mm->mmap_sem){+++++?}, at: [<00000000849f397a>] 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: 3158281 hardirqs last enabled at (3158281): [<00000000e7255897>] dump_stack+0x100/0x120 lib/dump_stack.c:56 hardirqs last disabled at (3158280): [<000000007c5a1e3a>] dump_stack+0x2c/0x120 lib/dump_stack.c:38 softirqs last enabled at (3147536): [<0000000048ceedc2>] __do_softirq+0x474/0x964 kernel/softirq.c:314 softirqs last disabled at (3147507): [<00000000078567e5>] invoke_softirq kernel/softirq.c:368 [inline] softirqs last disabled at (3147507): [<00000000078567e5>] 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 *** 3 locks held by syz-executor.5/8838: #0: (shrinker_rwsem){++++..}, at: [<000000008c97ed9c>] shrink_slab.part.0+0xb2/0xa20 mm/vmscan.c:472 #1: (rcu_read_lock){......}, at: [<000000001ee62a84>] lowmem_scan+0x242/0xb50 drivers/staging/android/lowmemorykiller.c:272 #2: (lmk_event_lock){+.+.-.}, at: [<00000000e71ba98d>] spin_lock include/linux/spinlock.h:302 [inline] #2: (lmk_event_lock){+.+.-.}, at: [<00000000e71ba98d>] handle_lmk_event+0xfb/0x8a0 drivers/staging/android/lowmemorykiller.c:114 stack backtrace: CPU: 1 PID: 8838 Comm: syz-executor.5 Tainted: G W 4.9.189+ #22 ffff88018f487010 ffffffff81b65c01 00000000000000f0 ffff88019ff68000 ffffffff83cafb00 ffff88019ff68948 ffffffff84250fc0 ffff88018f487088 ffffffff81408330 0000000000000000 ffffffff00000001 0000000000000001 Call Trace: [<000000007a9a811f>] __dump_stack lib/dump_stack.c:15 [inline] [<000000007a9a811f>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<0000000013b29e67>] print_usage_bug kernel/locking/lockdep.c:2387 [inline] [<0000000013b29e67>] print_usage_bug.cold+0x452/0x5a2 kernel/locking/lockdep.c:2354 [<000000009ff1ca95>] valid_state kernel/locking/lockdep.c:2400 [inline] [<000000009ff1ca95>] mark_lock_irq kernel/locking/lockdep.c:2602 [inline] [<000000009ff1ca95>] mark_lock+0x6c7/0x12e0 kernel/locking/lockdep.c:3065 [<000000006bf9fa49>] mark_irqflags kernel/locking/lockdep.c:2958 [inline] [<000000006bf9fa49>] __lock_acquire+0x5be/0x4390 kernel/locking/lockdep.c:3302 [<000000009980afa7>] lock_acquire+0x133/0x3d0 kernel/locking/lockdep.c:3756 [<000000005fd3cbaf>] down_read+0x44/0xb0 kernel/locking/rwsem.c:22 [<00000000849f397a>] get_cmdline+0xa3/0x2d0 mm/util.c:641 [<00000000e15e9e69>] handle_lmk_event+0x13c/0x8a0 drivers/staging/android/lowmemorykiller.c:128 [<000000004bfe0cb3>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<0000000083f60849>] do_shrink_slab mm/vmscan.c:399 [inline] [<0000000083f60849>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<0000000063361909>] shrink_slab mm/vmscan.c:466 [inline] [<0000000063361909>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<000000003b0032ec>] shrink_zones mm/vmscan.c:2751 [inline] [<000000003b0032ec>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<000000003b0032ec>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<000000008631ccce>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<000000008631ccce>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<000000008631ccce>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<000000008631ccce>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<000000003c957032>] __alloc_pages include/linux/gfp.h:433 [inline] [<000000003c957032>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<000000003c957032>] alloc_pages_node include/linux/gfp.h:460 [inline] [<000000003c957032>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<000000003c957032>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<000000005859e0ef>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<000000005859e0ef>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<000000005859e0ef>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<0000000002d820b0>] xt_alloc_entry_offsets+0x44/0x50 net/netfilter/x_tables.c:758 [<0000000051338ec9>] translate_table+0x215/0x1650 net/ipv4/netfilter/ip_tables.c:705 [<000000000b008844>] do_replace net/ipv4/netfilter/ip_tables.c:1157 [inline] [<000000000b008844>] do_ipt_set_ctl+0x2d4/0x470 net/ipv4/netfilter/ip_tables.c:1693 [<0000000041fb885b>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<0000000041fb885b>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<00000000819550ea>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<00000000819550ea>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000046f759e3>] raw_setsockopt+0xb3/0xd0 net/ipv4/raw.c:833 [<000000004888fbd8>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<000000006b878952>] SYSC_setsockopt net/socket.c:1786 [inline] [<000000006b878952>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<0000000087fe9594>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000034d1e447>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor.1' (8058) (tgid 8058), adj 1000, to free 35988kB on behalf of 'syz-executor.5' (8838) because cache 58684kB is below limit 65536kB for oom_score_adj 12 Free memory is -13284kB above reserved lowmemorykiller: Killing 'syz-executor.1' (8146) (tgid 8146), adj 1000, to free 35988kB on behalf of 'syz-executor.5' (8838) because cache 57584kB is below limit 65536kB for oom_score_adj 12 Free memory is -13356kB above reserved lowmemorykiller: Killing 'syz-executor.1' (7361) (tgid 7361), adj 1000, to free 35984kB on behalf of 'syz-executor.5' (8838) because cache 46284kB is below limit 65536kB for oom_score_adj 12 Free memory is -13284kB above reserved [ 4107] 0 4107 18210 8718 25 3 0 1000 syz-executor.4 [<000000001527c8a2>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<000000001527c8a2>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<000000001527c8a2>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [ 2098] 0 2098 18112 16 23 3 0 0 syz-executor.1 [<0000000023d7ebb7>] task_work_run+0x108/0x180 kernel/task_work.c:116 [<0000000077bb03f9>] exit_task_work include/linux/task_work.h:21 [inline] [<0000000077bb03f9>] do_exit+0x78f/0x2aa0 kernel/exit.c:842 [<00000000ce481e24>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<000000003974895d>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [ 4859] 0 4859 18144 8748 26 5 0 1000 syz-executor.3 [ 3905] 0 3905 18177 8748 26 4 0 1000 syz-executor.0 [<00000000486d8547>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000486d8547>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [ 2098] 0 2098 18112 16 23 3 0 0 syz-executor.1 [ 2099] 0 2099 18112 17 23 3 0 0 syz-executor.5 [ 2100] 0 2100 18112 15 23 3 0 0 syz-executor.2 [ 2101] 0 2101 18112 17 23 4 0 0 syz-executor.3 [ 2102] 0 2102 18112 17 23 3 0 0 syz-executor.4 [ 2103] 0 2103 18112 16 23 3 0 0 syz-executor.0 [ 2104] 0 2104 18111 8728 24 4 0 0 syz-executor.2 [ 2106] 0 2106 18111 8731 24 4 0 0 syz-executor.4 [ 2112] 0 2112 18111 8729 24 4 0 0 syz-executor.1 [ 2113] 0 2113 18111 8728 24 4 0 0 syz-executor.0 [ 2118] 0 2118 18111 8731 24 4 0 0 syz-executor.5 [ 2121] 0 2121 18111 8729 24 5 0 0 syz-executor.3 [ 3015] 0 3015 5390 195 15 3 0 -1000 udevd [ 3071] 0 3071 5364 170 15 3 0 -1000 udevd [ 3806] 0 3806 5382 188 15 3 0 -1000 udevd [ 3905] 0 3905 18177 8742 26 4 0 1000 syz-executor.0 [ 3953] 0 3953 18144 8740 26 4 0 1000 syz-executor.0 [ 3968] 0 3968 18144 8740 26 4 0 1000 syz-executor.0 [ 3981] 0 3981 18144 8740 26 4 0 1000 syz-executor.0 [ 3990] 0 3990 18144 8740 26 4 0 1000 syz-executor.0 [ 3997] 0 3997 18144 8740 26 4 0 1000 syz-executor.0 [ 4019] 0 4019 18144 8740 26 4 0 1000 syz-executor.0 [ 4030] 0 4030 18144 8740 26 4 0 1000 syz-executor.0 [ 4046] 0 4046 18144 8740 26 4 0 1000 syz-executor.0 [ 4049] 0 4049 18210 8713 25 3 0 1000 syz-executor.4 [ 4052] 0 4052 18144 8740 26 4 0 1000 syz-executor.0 [ 4069] 0 4069 18144 8740 26 4 0 1000 syz-executor.0 [ 4083] 0 4083 18144 8740 26 4 0 1000 syz-executor.0 [ 4094] 0 4094 18144 8740 26 4 0 1000 syz-executor.0 [ 4107] 0 4107 18210 8713 25 3 0 1000 syz-executor.4 [ 4128] 0 4128 18144 8740 26 4 0 1000 syz-executor.0 [ 4143] 0 4143 18144 8740 26 4 0 1000 syz-executor.0 [ 4152] 0 4152 18210 8713 25 3 0 1000 syz-executor.4 [ 4155] 0 4155 18177 8742 26 4 0 1000 syz-executor.0 [ 4183] 0 4183 18177 8742 26 4 0 1000 syz-executor.0 [ 4198] 0 4198 18177 8742 26 4 0 1000 syz-executor.0 [ 4236] 0 4236 18210 8712 26 3 0 1000 syz-executor.0 [ 4275] 0 4275 18210 8712 26 3 0 1000 syz-executor.0 [ 4325] 0 4325 18210 8712 25 3 0 1000 syz-executor.0 [ 4844] 0 4844 18144 8741 26 5 0 1000 syz-executor.3 [ 4859] 0 4859 18144 8741 26 5 0 1000 syz-executor.3 [ 4992] 0 4992 18144 8741 26 5 0 1000 syz-executor.3 [ 5008] 0 5008 18144 8741 26 5 0 1000 syz-executor.3 [ 5036] 0 5036 18144 8741 26 5 0 1000 syz-executor.3 [ 5047] 0 5047 18144 8741 26 5 0 1000 syz-executor.3 [ 5048] 0 5048 18177 8742 26 4 0 1000 syz-executor.0 [ 5057] 0 5057 18144 8741 26 5 0 1000 syz-executor.3 [ 5124] 0 5124 18144 8700 24 4 0 1000 syz-executor.3 [ 5153] 0 5153 18144 8700 24 4 0 1000 syz-executor.3 [ 5158] 0 5158 18144 8699 24 3 0 1000 syz-executor.0 [ 5164] 0 5164 18144 8708 25 3 0 1000 syz-executor.0 [ 5181] 0 5181 18144 8700 24 4 0 1000 syz-executor.3 [ 5182] 0 5182 18144 8699 24 3 0 1000 syz-executor.0 [ 5201] 0 5201 18144 8699 24 3 0 1000 syz-executor.0 [ 5218] 0 5218 18144 8741 26 5 0 1000 syz-executor.3 [ 5229] 0 5229 18144 8699 24 3 0 1000 syz-executor.0 [ 5249] 0 5249 18144 8741 26 5 0 1000 syz-executor.3 [ 5254] 0 5254 18144 8699 24 3 0 1000 syz-executor.0 [ 5274] 0 5274 18144 8699 24 3 0 1000 syz-executor.0 [ 5292] 0 5292 18144 8699 24 3 0 1000 syz-executor.0 [ 5299] 0 5299 18144 8699 24 3 0 1000 syz-executor.0 [ 5323] 0 5323 18144 8699 24 3 0 1000 syz-executor.0 [ 5339] 0 5339 18144 8699 24 3 0 1000 syz-executor.0 [ 5367] 0 5367 18144 8699 24 3 0 1000 syz-executor.0 [ 5381] 0 5381 18144 8699 24 3 0 1000 syz-executor.0 [ 5409] 0 5409 18144 8699 24 3 0 1000 syz-executor.0 [ 5422] 0 5422 18144 8699 24 3 0 1000 syz-executor.0 [ 5496] 0 5496 18144 8699 24 3 0 1000 syz-executor.0 [ 5522] 0 5522 18144 8699 24 3 0 1000 syz-executor.0 [ 5535] 0 5535 18144 8699 24 3 0 1000 syz-executor.0 [ 5550] 0 5550 18144 8699 24 3 0 1000 syz-executor.0 [ 5568] 0 5568 18144 8699 24 3 0 1000 syz-executor.0 [ 5595] 0 5595 18144 8699 24 3 0 1000 syz-executor.0 [ 5609] 0 5609 18144 8699 24 3 0 1000 syz-executor.0 [ 5628] 0 5628 18144 8699 24 3 0 1000 syz-executor.0 [ 5649] 0 5649 18144 8699 24 3 0 1000 syz-executor.0 [ 5671] 0 5671 18144 8699 24 3 0 1000 syz-executor.0 [ 5687] 0 5687 18144 8699 24 3 0 1000 syz-executor.0 [ 5711] 0 5711 18144 8699 24 3 0 1000 syz-executor.0 [ 5723] 0 5723 18144 8699 24 3 0 1000 syz-executor.0 [ 5746] 0 5746 18144 8699 24 3 0 1000 syz-executor.0 [ 5770] 0 5770 18144 8699 24 3 0 1000 syz-executor.0 [ 5784] 0 5784 18144 8699 24 3 0 1000 syz-executor.0 [ 5804] 0 5804 18144 8699 24 3 0 1000 syz-executor.0 [ 5824] 0 5824 18144 8699 24 3 0 1000 syz-executor.0 [ 5843] 0 5843 18144 8699 24 3 0 1000 syz-executor.0 [ 5862] 0 5862 18144 8699 24 3 0 1000 syz-executor.0 [ 5877] 0 5877 18144 8699 24 3 0 1000 syz-executor.0 [ 5905] 0 5905 18144 8699 24 3 0 1000 syz-executor.0 [ 5918] 0 5918 18177 8742 26 4 0 1000 syz-executor.2 [ 5923] 0 5923 18144 8699 24 3 0 1000 syz-executor.0 [ 5940] 0 5940 18144 8699 24 3 0 1000 syz-executor.0 [ 5942] 0 5942 18144 8740 26 4 0 1000 syz-executor.2 [ 5954] 0 5954 18144 8699 24 3 0 1000 syz-executor.0 [ 5964] 0 5964 18144 8740 26 4 0 1000 syz-executor.2 [ 5969] 0 5969 18144 8699 24 3 0 1000 syz-executor.0 [ 5988] 0 5988 18144 8740 26 4 0 1000 syz-executor.2 [ 5995] 0 5995 18144 8699 24 3 0 1000 syz-executor.0 [ 6012] 0 6012 18144 8740 26 4 0 1000 syz-executor.2 [ 6015] 0 6015 18144 8699 24 3 0 1000 syz-executor.0 [ 6025] 0 6025 18144 8740 26 4 0 1000 syz-executor.2 [ 6029] 0 6029 18144 8699 24 3 0 1000 syz-executor.0 [ 6043] 0 6043 18144 8740 26 4 0 1000 syz-executor.2 [ 6044] 0 6044 18144 8699 24 3 0 1000 syz-executor.0 [ 6061] 0 6061 18144 8699 24 3 0 1000 syz-executor.0 [ 6063] 0 6063 18144 8740 26 4 0 1000 syz-executor.2 [ 6082] 0 6082 18144 8740 26 4 0 1000 syz-executor.2 [ 6083] 0 6083 18144 8699 24 3 0 1000 syz-executor.0 [ 6103] 0 6103 18144 8699 24 3 0 1000 syz-executor.0 [ 6104] 0 6104 18144 8740 26 4 0 1000 syz-executor.2 [ 6148] 0 6148 18144 8740 26 4 0 1000 syz-executor.2 [ 6167] 0 6167 18144 8740 26 4 0 1000 syz-executor.2 [ 6185] 0 6185 18144 8740 26 4 0 1000 syz-executor.2 [ 6223] 0 6223 18144 8741 26 5 0 1000 syz-executor.3 [ 6242] 0 6242 18144 8741 26 5 0 1000 syz-executor.3 [ 6270] 0 6270 18144 8741 26 5 0 1000 syz-executor.3 [ 6289] 0 6289 18144 8741 26 5 0 1000 syz-executor.3 [ 6302] 0 6302 18144 8741 26 5 0 1000 syz-executor.3 [ 6318] 0 6318 18144 8740 26 4 0 1000 syz-executor.2 [ 6319] 0 6319 18144 8741 26 5 0 1000 syz-executor.3 [ 6337] 0 6337 18144 8740 26 4 0 1000 syz-executor.2 [ 6349] 0 6349 18144 8740 26 4 0 1000 syz-executor.2 [ 6363] 0 6363 18144 8740 26 4 0 1000 syz-executor.2 [ 6379] 0 6379 18144 8740 26 4 0 1000 syz-executor.2 [ 6396] 0 6396 18144 8740 26 4 0 1000 syz-executor.2 [ 6417] 0 6417 18144 8740 26 4 0 1000 syz-executor.2 [ 6431] 0 6431 18144 8740 26 4 0 1000 syz-executor.2 [ 6446] 0 6446 18144 8740 26 4 0 1000 syz-executor.2 [ 6468] 0 6468 18144 8708 25 3 0 1000 syz-executor.2 [ 6484] 0 6484 18144 8708 25 3 0 1000 syz-executor.2 [ 6512] 0 6512 18144 8708 25 3 0 1000 syz-executor.2 [ 6525] 0 6525 18144 8740 26 4 0 1000 syz-executor.2 [ 6547] 0 6547 18144 8740 26 4 0 1000 syz-executor.2 [ 6565] 0 6565 18144 8740 26 4 0 1000 syz-executor.2 [ 6606] 0 6606 18144 8740 26 4 0 1000 syz-executor.2 [ 6621] 0 6621 18144 8740 26 4 0 1000 syz-executor.2 [ 6630] 0 6630 18144 8740 26 4 0 1000 syz-executor.2 [ 6647] 0 6647 18144 8740 26 4 0 1000 syz-executor.2 [ 6674] 0 6674 18144 8740 26 4 0 1000 syz-executor.2 [ 6692] 0 6692 18144 8740 26 4 0 1000 syz-executor.2 [ 6707] 0 6707 18144 8740 26 4 0 1000 syz-executor.2 [ 6725] 0 6725 18144 8740 26 4 0 1000 syz-executor.2 [ 6771] 0 6771 18144 8740 26 4 0 1000 syz-executor.2 [ 6789] 0 6789 18144 8740 26 4 0 1000 syz-executor.2 [ 6813] 0 6813 18144 8740 26 4 0 1000 syz-executor.2 [ 6832] 0 6832 18144 8740 26 4 0 1000 syz-executor.2 [ 6863] 0 6863 18144 8740 26 4 0 1000 syz-executor.2 [ 6881] 0 6881 18144 8740 26 4 0 1000 syz-executor.2 [ 6904] 0 6904 18144 8740 26 4 0 1000 syz-executor.2 [ 6917] 0 6917 18144 8740 26 4 0 1000 syz-executor.2 [ 6927] 0 6927 18144 8740 26 4 0 1000 syz-executor.2 [ 6937] 0 6937 18144 8740 26 4 0 1000 syz-executor.2 [ 6954] 0 6954 18144 8740 26 4 0 1000 syz-executor.2 [ 6978] 0 6978 18144 8740 26 4 0 1000 syz-executor.2 [ 6993] 0 6993 18144 8740 26 4 0 1000 syz-executor.2 [ 7014] 0 7014 18144 8740 26 4 0 1000 syz-executor.2 [ 7027] 0 7027 18144 8740 26 4 0 1000 syz-executor.2 [ 7036] 0 7036 18144 8740 26 4 0 1000 syz-executor.2 [ 7045] 0 7045 18144 8740 26 4 0 1000 syz-executor.2 [ 7066] 0 7066 18144 8740 26 4 0 1000 syz-executor.2 [ 7073] 0 7073 18144 8740 26 4 0 1000 syz-executor.2 [ 7082] 0 7082 18144 8740 26 4 0 1000 syz-executor.2 [ 7095] 0 7095 18144 8740 26 4 0 1000 syz-executor.2 [ 7113] 0 7113 18144 8740 26 4 0 1000 syz-executor.2 [ 7124] 0 7124 18144 8740 26 4 0 1000 syz-executor.2 [ 7682] 0 7682 18144 8741 26 4 0 1000 syz-executor.1 [ 7701] 0 7701 18144 8741 26 4 0 1000 syz-executor.1 [ 7726] 0 7726 18144 8741 26 4 0 1000 syz-executor.1 [ 7748] 0 7748 18144 8741 26 4 0 1000 syz-executor.1 [ 7771] 0 7771 18144 8741 26 4 0 1000 syz-executor.1 [ 7803] 0 7803 18144 8741 26 4 0 1000 syz-executor.1 [ 7819] 0 7819 18177 8711 26 3 0 1000 syz-executor.1 [ 7841] 0 7841 18177 8711 26 3 0 1000 syz-executor.1 [ 7887] 0 7887 18177 8711 26 3 0 1000 syz-executor.1 [ 8838] 0 8825 18177 2 26 4 0 1000 syz-executor.5 [ 8826] 0 8826 18144 8741 26 5 0 1000 syz-executor.3 Out of memory: Kill process 3905 (syz-executor.0) score 1004 or sacrifice child Killed process 3905 (syz-executor.0) total-vm:72708kB, anon-rss:152kB, file-rss:34816kB, shmem-rss:0kB syz-executor.1 invoked oom-killer: gfp_mask=0x2420848(GFP_NOFS|__GFP_NOFAIL|__GFP_HARDWALL|__GFP_MOVABLE), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 8603 Comm: syz-executor.1 Tainted: G W 4.9.189+ #22 ffff8801a6aef0e0 ffffffff81b65c01 ffff8801a6aef438 ffffffff833f14b0 00000000000003e8 ffff8801a6aef450 0000000000000000 ffff8801a6aef160 ffffffff81506abb 0000000000000000 00000000000003e8 ffffffff82828535 Call Trace: [<000000007a9a811f>] __dump_stack lib/dump_stack.c:15 [inline] [<000000007a9a811f>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000049fb2eb>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<0000000055805f06>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000486d8547>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000486d8547>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<00000000d00b5ef7>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<00000000d00b5ef7>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<00000000d00b5ef7>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<0000000072271167>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000072271167>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000072271167>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000072271167>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<0000000072271167>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<00000000873e24f0>] find_or_create_page include/linux/pagemap.h:310 [inline] [<00000000873e24f0>] grow_dev_page fs/buffer.c:1006 [inline] [<00000000873e24f0>] grow_buffers fs/buffer.c:1079 [inline] [<00000000873e24f0>] __getblk_slow fs/buffer.c:1106 [inline] [<00000000873e24f0>] __getblk_gfp+0x239/0x700 fs/buffer.c:1387 [<00000000f7bc89d4>] sb_getblk include/linux/buffer_head.h:318 [inline] [<00000000f7bc89d4>] __ext4_get_inode_loc+0x332/0xf00 fs/ext4/inode.c:4304 [<00000000eae42cb8>] ext4_get_inode_loc fs/ext4/inode.c:4417 [inline] [<00000000eae42cb8>] ext4_reserve_inode_write+0x5c/0x180 fs/ext4/inode.c:5488 [<00000000803cd4a9>] ext4_mark_inode_dirty+0x153/0xb30 fs/ext4/inode.c:5557 [<000000001770890f>] ext4_evict_inode+0x6ba/0x1270 fs/ext4/inode.c:258 [<0000000073bfe5bd>] evict+0x2e9/0x630 fs/inode.c:553 [<000000008179a481>] iput_final fs/inode.c:1516 [inline] [<000000008179a481>] iput fs/inode.c:1543 [inline] [<000000008179a481>] iput+0x370/0x900 fs/inode.c:1528 [<0000000058863bf2>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369 [<000000006be1fb00>] __dentry_kill+0x333/0x580 fs/dcache.c:571 [<00000000f60b9523>] dentry_kill fs/dcache.c:612 [inline] [<00000000f60b9523>] dput.part.0+0x509/0x7c0 fs/dcache.c:829 [<0000000046bb37a4>] dput+0x20/0x30 fs/dcache.c:791 [<000000009a40ed4c>] __fput+0x444/0x720 fs/file_table.c:226 [<0000000074dcff40>] ____fput+0x16/0x20 fs/file_table.c:244 [<0000000023d7ebb7>] task_work_run+0x108/0x180 kernel/task_work.c:116 [<0000000077bb03f9>] exit_task_work include/linux/task_work.h:21 [inline] [<0000000077bb03f9>] do_exit+0x78f/0x2aa0 kernel/exit.c:842 [<00000000ce481e24>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<000000003974895d>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<0000000060777a7c>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<000000006a6d71f9>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<000000000d4ce3a5>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<000000000d4ce3a5>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<000000000d4ce3a5>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<0000000034d1e447>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:71038 inactive_anon:42 isolated_anon:0 active_file:33 inactive_file:30 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11847 slab_unreclaimable:53645 mapped:52253 shmem:178 pagetables:4753 bounce:0 free:882 free_pcp:0 free_cma:0 Node 0 active_anon:284152kB inactive_anon:168kB active_file:132kB inactive_file:120kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:209012kB dirty:0kB writeback:0kB shmem:712kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:4kB slab_unreclaimable:324kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:3528kB min:5580kB low:9168kB high:12756kB active_anon:284152kB inactive_anon:168kB active_file:132kB inactive_file:120kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:47384kB slab_unreclaimable:214256kB kernel_stack:8992kB pagetables:19012kB bounce:0kB free_pcp:0kB local_pcp:0kB 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 313625 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5391 195 15 3 0 -1000 udevd [ 581] 0 581 5515 313 15 3 0 -1000 udevd [ 582] 0 582 5383 184 15 3 0 -1000 udevd [ 1763] 0 1763 2492 573 9 3 0 0 dhclient [ 1904] 0 1904 14229 110 22 3 0 0 rsyslogd [ 1950] 0 1950 4724 50 15 3 0 0 cron [ 1977] 0 1977 3734 44 11 3 0 0 mcstransd [ 1979] 0 1979 12926 1231 28 3 0 0 restorecond [ 2005] 0 2005 12489 152 27 3 0 -1000 sshd [ 2035] 0 2035 3648 39 13 3 0 0 getty [ 2051] 0 2051 17820 197 37 3 0 0 sshd [ 2053] 0 2053 96694 63617 151 5 0 0 syz-fuzzer [ 2098] 0 2098 18112 16 23 3 0 0 syz-executor.1 [ 2099] 0 2099 18112 17 23 3 0 0 syz-executor.5 [ 2100] 0 2100 18112 15 23 3 0 0 syz-executor.2 [ 2101] 0 2101 18112 17 23 4 0 0 syz-executor.3 [ 2102] 0 2102 18112 17 23 3 0 0 syz-executor.4 [ 2103] 0 2103 18112 16 23 3 0 0 syz-executor.0 [ 2104] 0 2104 18111 8728 24 4 0 0 syz-executor.2 [ 2106] 0 2106 18111 8731 24 4 0 0 syz-executor.4 [ 2112] 0 2112 18111 8729 24 4 0 0 syz-executor.1 [ 2113] 0 2113 18111 8728 24 4 0 0 syz-executor.0 [ 2118] 0 2118 18111 8731 24 4 0 0 syz-executor.5 [ 2121] 0 2121 18111 8729 24 5 0 0 syz-executor.3 [ 3015] 0 3015 5390 195 15 3 0 -1000 udevd [ 3071] 0 3071 5364 170 15 3 0 -1000 udevd [ 3806] 0 3806 5382 188 15 3 0 -1000 udevd [ 3953] 0 3953 18144 8740 26 4 0 1000 syz-executor.0 [ 3968] 0 3968 18144 8740 26 4 0 1000 syz-executor.0 [ 3981] 0 3981 18144 8740 26 4 0 1000 syz-executor.0 [ 3990] 0 3990 18144 8740 26 4 0 1000 syz-executor.0 [ 3997] 0 3997 18144 8740 26 4 0 1000 syz-executor.0 [ 4019] 0 4019 18144 8740 26 4 0 1000 syz-executor.0 [ 4030] 0 4030 18144 8740 26 4 0 1000 syz-executor.0 [ 4046] 0 4046 18144 8740 26 4 0 1000 syz-executor.0 [ 4049] 0 4049 18210 8713 25 3 0 1000 syz-executor.4 [ 4052] 0 4052 18144 8740 26 4 0 1000 syz-executor.0 [ 4069] 0 4069 18144 8740 26 4 0 1000 syz-executor.0 [ 4083] 0 4083 18144 8740 26 4 0 1000 syz-executor.0 [ 4094] 0 4094 18144 8740 26 4 0 1000 syz-executor.0 [ 4107] 0 4107 18210 8713 25 3 0 1000 syz-executor.4 [ 4128] 0 4128 18144 8740 26 4 0 1000 syz-executor.0 [ 4143] 0 4143 18144 8740 26 4 0 1000 syz-executor.0 [ 4152] 0 4152 18210 8713 25 3 0 1000 syz-executor.4 [ 4155] 0 4155 18177 8742 26 4 0 1000 syz-executor.0 [ 4183] 0 4183 18177 8742 26 4 0 1000 syz-executor.0 [ 4198] 0 4198 18177 8742 26 4 0 1000 syz-executor.0 [ 4236] 0 4236 18210 8712 26 3 0 1000 syz-executor.0 [ 4275] 0 4275 18210 8712 26 3 0 1000 syz-executor.0 [ 4325] 0 4325 18210 8712 25 3 0 1000 syz-executor.0 [ 4844] 0 4844 18144 8741 26 5 0 1000 syz-executor.3 [ 4859] 0 4859 18144 8741 26 5 0 1000 syz-executor.3 [ 4992] 0 4992 18144 8741 26 5 0 1000 syz-executor.3 [ 5008] 0 5008 18144 8741 26 5 0 1000 syz-executor.3 [ 5036] 0 5036 18144 8741 26 5 0 1000 syz-executor.3 [ 5047] 0 5047 18144 8741 26 5 0 1000 syz-executor.3 [ 5048] 0 5048 18177 8742 26 4 0 1000 syz-executor.0 [ 5057] 0 5057 18144 8741 26 5 0 1000 syz-executor.3 [ 5124] 0 5124 18144 8700 24 4 0 1000 syz-executor.3 [ 5153] 0 5153 18144 8700 24 4 0 1000 syz-executor.3 [ 5158] 0 5158 18144 8699 24 3 0 1000 syz-executor.0 [ 5164] 0 5164 18144 8708 25 3 0 1000 syz-executor.0 [ 5181] 0 5181 18144 8700 24 4 0 1000 syz-executor.3 [ 5182] 0 5182 18144 8699 24 3 0 1000 syz-executor.0 [ 5201] 0 5201 18144 8699 24 3 0 1000 syz-executor.0 [ 5218] 0 5218 18144 8741 26 5 0 1000 syz-executor.3 [ 5229] 0 5229 18144 8699 24 3 0 1000 syz-executor.0 [ 5249] 0 5249 18144 8741 26 5 0 1000 syz-executor.3 [ 5254] 0 5254 18144 8699 24 3 0 1000 syz-executor.0 [ 5274] 0 5274 18144 8699 24 3 0 1000 syz-executor.0 [ 5292] 0 5292 18144 8699 24 3 0 1000 syz-executor.0 [ 5299] 0 5299 18144 8699 24 3 0 1000 syz-executor.0 [ 5323] 0 5323 18144 8699 24 3 0 1000 syz-executor.0 [ 5339] 0 5339 18144 8699 24 3 0 1000 syz-executor.0 [ 5367] 0 5367 18144 8699 24 3 0 1000 syz-executor.0 [ 5381] 0 5381 18144 8699 24 3 0 1000 syz-executor.0 [ 5409] 0 5409 18144 8699 24 3 0 1000 syz-executor.0 [ 5422] 0 5422 18144 8699 24 3 0 1000 syz-executor.0 [ 5496] 0 5496 18144 8699 24 3 0 1000 syz-executor.0 [ 5522] 0 5522 18144 8699 24 3 0 1000 syz-executor.0 [ 5535] 0 5535 18144 8699 24 3 0 1000 syz-executor.0 [ 5550] 0 5550 18144 8699 24 3 0 1000 syz-executor.0 [ 5568] 0 5568 18144 8699 24 3 0 1000 syz-executor.0 [ 5595] 0 5595 18144 8699 24 3 0 1000 syz-executor.0 [ 5609] 0 5609 18144 8699 24 3 0 1000 syz-executor.0 [ 5628] 0 5628 18144 8699 24 3 0 1000 syz-executor.0 [ 5649] 0 5649 18144 8699 24 3 0 1000 syz-executor.0 [ 5671] 0 5671 18144 8699 24 3 0 1000 syz-executor.0 [ 5687] 0 5687 18144 8699 24 3 0 1000 syz-executor.0 [ 5711] 0 5711 18144 8699 24 3 0 1000 syz-executor.0 [ 5723] 0 5723 18144 8699 24 3 0 1000 syz-executor.0 [ 5746] 0 5746 18144 8699 24 3 0 1000 syz-executor.0 [ 5770] 0 5770 18144 8699 24 3 0 1000 syz-executor.0 [ 5784] 0 5784 18144 8699 24 3 0 1000 syz-executor.0 [ 5804] 0 5804 18144 8699 24 3 0 1000 syz-executor.0 [ 5824] 0 5824 18144 8699 24 3 0 1000 syz-executor.0 [ 5843] 0 5843 18144 8699 24 3 0 1000 syz-executor.0 [ 5862] 0 5862 18144 8699 24 3 0 1000 syz-executor.0 [ 5877] 0 5877 18144 8699 24 3 0 1000 syz-executor.0 [ 5905] 0 5905 18144 8699 24 3 0 1000 syz-executor.0 [ 5918] 0 5918 18177 8742 26 4 0 1000 syz-executor.2 [ 5923] 0 5923 18144 8699 24 3 0 1000 syz-executor.0 [ 5940] 0 5940 18144 8699 24 3 0 1000 syz-executor.0 [ 5942] 0 5942 18144 8740 26 4 0 1000 syz-executor.2 [ 5954] 0 5954 18144 8699 24 3 0 1000 syz-executor.0 [ 5964] 0 5964 18144 8740 26 4 0 1000 syz-executor.2 [ 5969] 0 5969 18144 8699 24 3 0 1000 syz-executor.0 [ 5988] 0 5988 18144 8740 26 4 0 1000 syz-executor.2 [ 5995] 0 5995 18144 8699 24 3 0 1000 syz-executor.0 [ 6012] 0 6012 18144 8740 26 4 0 1000 syz-executor.2 [ 6015] 0 6015 18144 8699 24 3 0 1000 syz-executor.0 [ 6025] 0 6025 18144 8740 26 4 0 1000 syz-executor.2 [ 6029] 0 6029 18144 8699 24 3 0 1000 syz-executor.0 [ 6043] 0 6043 18144 8740 26 4 0 1000 syz-executor.2 [ 6044] 0 6044 18144 8699 24 3 0 1000 syz-executor.0 [ 6061] 0 6061 18144 8699 24 3 0 1000 syz-executor.0 [ 6063] 0 6063 18144 8740 26 4 0 1000 syz-executor.2 [ 6082] 0 6082 18144 8740 26 4 0 1000 syz-executor.2 [ 6083] 0 6083 18144 8699 24 3 0 1000 syz-executor.0 [ 6103] 0 6103 18144 8699 24 3 0 1000 syz-executor.0 [ 6104] 0 6104 18144 8740 26 4 0 1000 syz-executor.2 [ 6148] 0 6148 18144 8740 26 4 0 1000 syz-executor.2 [ 6167] 0 6167 18144 8740 26 4 0 1000 syz-executor.2 [ 6185] 0 6185 18144 8740 26 4 0 1000 syz-executor.2 [ 6223] 0 6223 18144 8741 26 5 0 1000 syz-executor.3 [ 6242] 0 6242 18144 8741 26 5 0 1000 syz-executor.3 [ 6270] 0 6270 18144 8741 26 5 0 1000 syz-executor.3 [ 6289] 0 6289 18144 8741 26 5 0 1000 syz-executor.3 [ 6302] 0 6302 18144 8741 26 5 0 1000 syz-executor.3 [ 6318] 0 6318 18144 8740 26 4 0 1000 syz-executor.2 [ 6319] 0 6319 18144 8741 26 5 0 1000 syz-executor.3 [ 6337] 0 6337 18144 8740 26 4 0 1000 syz-executor.2 [ 6349] 0 6349 18144 8740 26 4 0 1000 syz-executor.2 [ 6363] 0 6363 18144 8740 26 4 0 1000 syz-executor.2 [ 6379] 0 6379 18144 8740 26 4 0 1000 syz-executor.2 [ 6396] 0 6396 18144 8740 26 4 0 1000 syz-executor.2 [ 6417] 0 6417 18144 8740 26 4 0 1000 syz-executor.2 [ 6431] 0 6431 18144 8740 26 4 0 1000 syz-executor.2 [ 6446] 0 6446 18144 8740 26 4 0 1000 syz-executor.2 [ 6468] 0 6468 18144 8708 25 3 0 1000 syz-executor.2 [ 6484] 0 6484 18144 8708 25 3 0 1000 syz-executor.2 [ 6512] 0 6512 18144 8708 25 3 0 1000 syz-executor.2 [ 6525] 0 6525 18144 8740 26 4 0 1000 syz-executor.2 [ 6547] 0 6547 18144 8740 26 4 0 1000 syz-executor.2 [ 6565] 0 6565 18144 8740 26 4 0 1000 syz-executor.2 [ 6606] 0 6606 18144 8740 26 4 0 1000 syz-executor.2 [ 6621] 0 6621 18144 8740 26 4 0 1000 syz-executor.2 [ 6630] 0 6630 18144 8740 26 4 0 1000 syz-executor.2 [ 6647] 0 6647 18144 8740 26 4 0 1000 syz-executor.2 [ 6674] 0 6674 18144 8740 26 4 0 1000 syz-executor.2 [ 6692] 0 6692 18144 8740 26 4 0 1000 syz-executor.2 [ 6707] 0 6707 18144 8740 26 4 0 1000 syz-executor.2 [ 6725] 0 6725 18144 8740 26 4 0 1000 syz-executor.2 [ 6771] 0 6771 18144 8740 26 4 0 1000 syz-executor.2 [ 6789] 0 6789 18144 8740 26 4 0 1000 syz-executor.2 [ 6813] 0 6813 18144 8740 26 4 0 1000 syz-executor.2 [ 6832] 0 6832 18144 8740 26 4 0 1000 syz-executor.2 [ 6863] 0 6863 18144 8740 26 4 0 1000 syz-executor.2 [ 6881] 0 6881 18144 8740 26 4 0 1000 syz-executor.2 [ 6904] 0 6904 18144 8740 26 4 0 1000 syz-executor.2 [ 6917] 0 6917 18144 8740 26 4 0 1000 syz-executor.2 [ 6927] 0 6927 18144 8740 26 4 0 1000 syz-executor.2 [ 6937] 0 6937 18144 8740 26 4 0 1000 syz-executor.2 [ 6954] 0 6954 18144 8740 26 4 0 1000 syz-executor.2 [ 6978] 0 6978 18144 8740 26 4 0 1000 syz-executor.2 [ 6993] 0 6993 18144 8740 26 4 0 1000 syz-executor.2 [ 7014] 0 7014 18144 8740 26 4 0 1000 syz-executor.2 [ 7027] 0 7027 18144 8740 26 4 0 1000 syz-executor.2 [ 7036] 0 7036 18144 8740 26 4 0 1000 syz-executor.2 [ 7045] 0 7045 18144 8740 26 4 0 1000 syz-executor.2 [ 7066] 0 7066 18144 8740 26 4 0 1000 syz-executor.2 [ 7073] 0 7073 18144 8740 26 4 0 1000 syz-executor.2 [ 7082] 0 7082 18144 8740 26 4 0 1000 syz-executor.2 [ 7095] 0 7095 18144 8740 26 4 0 1000 syz-executor.2 [ 7113] 0 7113 18144 8740 26 4 0 1000 syz-executor.2 [ 7124] 0 7124 18144 8740 26 4 0 1000 syz-executor.2 [ 7682] 0 7682 18144 8741 26 4 0 1000 syz-executor.1 [ 7701] 0 7701 18144 8741 26 4 0 1000 syz-executor.1 [ 7726] 0 7726 18144 8741 26 4 0 1000 syz-executor.1 [ 7748] 0 7748 18144 8741 26 4 0 1000 syz-executor.1 [ 7771] 0 7771 18144 8741 26 4 0 1000 syz-executor.1 [ 7803] 0 7803 18144 8741 26 4 0 1000 syz-executor.1 [ 7819] 0 7819 18177 8711 26 3 0 1000 syz-executor.1 [ 7841] 0 7841 18177 8711 26 3 0 1000 syz-executor.1 [ 7887] 0 7887 18177 8711 26 3 0 1000 syz-executor.1 [ 8838] 0 8825 18177 2 26 4 0 1000 syz-executor.5 [ 8826] 0 8826 18144 8741 26 5 0 1000 syz-executor.3 Out of memory: Kill process 4155 (syz-executor.0) score 1004 or sacrifice child Killed process 4155 (syz-executor.0) total-vm:72708kB, anon-rss:152kB, file-rss:34816kB, 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: 0 PID: 8638 Comm: syz-executor.1 Tainted: G W 4.9.189+ #22 ffff8801c8217328 ffffffff81b65c01 ffff8801c8217680 ffffffff833f14b0 00000000000003e8 ffff8801c8217698 0000000000000000 ffff8801c82173a8 ffffffff81506abb 0000000000000000 00000000000003e8 ffffffff82828535 Call Trace: [<000000007a9a811f>] __dump_stack lib/dump_stack.c:15 [inline] [<000000007a9a811f>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000049fb2eb>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<0000000055805f06>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000486d8547>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000486d8547>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<00000000d00b5ef7>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<00000000d00b5ef7>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<00000000d00b5ef7>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<0000000072271167>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000072271167>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000072271167>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000072271167>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<0000000072271167>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<000000004a5fd896>] find_or_create_page include/linux/pagemap.h:310 [inline] [<000000004a5fd896>] ext4_mb_load_buddy_gfp+0x659/0x1100 fs/ext4/mballoc.c:1208 [<000000006be9ac6a>] ext4_discard_preallocations+0xa2a/0xf80 fs/ext4/mballoc.c:4043 [<000000002a67d2e3>] ext4_release_file+0x263/0x2e0 fs/ext4/file.c:51 [<00000000cfe247ec>] __fput+0x274/0x720 fs/file_table.c:208 [<0000000074dcff40>] ____fput+0x16/0x20 fs/file_table.c:244 [<0000000023d7ebb7>] task_work_run+0x108/0x180 kernel/task_work.c:116 [<0000000077bb03f9>] exit_task_work include/linux/task_work.h:21 [inline] [<0000000077bb03f9>] do_exit+0x78f/0x2aa0 kernel/exit.c:842 [<00000000ce481e24>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<000000003974895d>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<0000000060777a7c>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<000000006a6d71f9>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<000000000d4ce3a5>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<000000000d4ce3a5>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<000000000d4ce3a5>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<0000000034d1e447>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:71013 inactive_anon:42 isolated_anon:0 active_file:33 inactive_file:30 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:11847 slab_unreclaimable:53645 mapped:52253 shmem:178 pagetables:4716 bounce:0 free:882 free_pcp:90 free_cma:0 Node 0 active_anon:284052kB inactive_anon:168kB active_file:132kB inactive_file:120kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:209012kB dirty:0kB writeback:0kB shmem:712kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:4kB slab_unreclaimable:324kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:3528kB min:5580kB low:9168kB high:12756kB active_anon:284052kB inactive_anon:168kB active_file:132kB inactive_file:120kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:47384kB slab_unreclaimable:214256kB kernel_stack:8992kB pagetables:18864kB bounce:0kB free_pcp:360kB local_pcp:0kB 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 313625 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5391 195 15 3 0 -1000 udevd [ 581] 0 581 5515 313 15 3 0 -1000 udevd [ 582] 0 582 5383 184 15 3 0 -1000 udevd [ 1763] 0 1763 2492 573 9 3 0 0 dhclient [ 1904] 0 1904 14229 110 22 3 0 0 rsyslogd [ 1950] 0 1950 4724 50 15 3 0 0 cron [ 1977] 0 1977 3734 44 11 3 0 0 mcstransd [ 1979] 0 1979 12926 1231 28 3 0 0 restorecond [ 2005] 0 2005 12489 152 27 3 0 -1000 sshd [ 2035] 0 2035 3648 39 13 3 0 0 getty [ 2051] 0 2051 17820 197 37 3 0 0 sshd [ 2053] 0 2053 96694 63617 151 5 0 0 syz-fuzzer [ 2098] 0 2098 18112 16 23 3 0 0 syz-executor.1 [ 2099] 0 2099 18112 17 23 3 0 0 syz-executor.5 [ 2100] 0 2100 18112 15 23 3 0 0 syz-executor.2 [ 2101] 0 2101 18112 17 23 4 0 0 syz-executor.3 [ 2102] 0 2102 18112 17 23 3 0 0 syz-executor.4 [ 2103] 0 2103 18112 16 23 3 0 0 syz-executor.0 [ 2104] 0 2104 18111 8728 24 4 0 0 syz-executor.2 [ 2106] 0 2106 18111 8731 24 4 0 0 syz-executor.4 [ 2112] 0 2112 18111 8729 24 4 0 0 syz-executor.1 [ 2113] 0 2113 18111 8728 24 4 0 0 syz-executor.0 [ 2118] 0 2118 18111 8731 24 4 0 0 syz-executor.5 [ 2121] 0 2121 18111 8729 24 5 0 0 syz-executor.3 [ 3015] 0 3015 5390 195 15 3 0 -1000 udevd [ 3071] 0 3071 5364 170 15 3 0 -1000 udevd [ 3806] 0 3806 5382 188 15 3 0 -1000 udevd [ 3953] 0 3953 18144 8740 26 4 0 1000 syz-executor.0 [ 3968] 0 3968 18144 8740 26 4 0 1000 syz-executor.0 [ 3981] 0 3981 18144 8740 26 4 0 1000 syz-executor.0 [ 3990] 0 3990 18144 8740 26 4 0 1000 syz-executor.0 [ 3997] 0 3997 18144 8740 26 4 0 1000 syz-executor.0 [ 4019] 0 4019 18144 8740 26 4 0 1000 syz-executor.0 [ 4030] 0 4030 18144 8740 26 4 0 1000 syz-executor.0 [ 4046] 0 4046 18144 8740 26 4 0 1000 syz-executor.0 [ 4049] 0 4049 18210 8713 25 3 0 1000 syz-executor.4 [ 4052] 0 4052 18144 8740 26 4 0 1000 syz-executor.0 [ 4069] 0 4069 18144 8740 26 4 0 1000 syz-executor.0 [ 4083] 0 4083 18144 8740 26 4 0 1000 syz-executor.0 [ 4094] 0 4094 18144 8740 26 4 0 1000 syz-executor.0 [ 4107] 0 4107 18210 8713 25 3 0 1000 syz-executor.4 [ 4128] 0 4128 18144 8740 26 4 0 1000 syz-executor.0 [ 4143] 0 4143 18144 8740 26 4 0 1000 syz-executor.0 [ 4152] 0 4152 18210 8713 25 3 0 1000 syz-executor.4 [ 4183] 0 4183 18177 8742 26 4 0 1000 syz-executor.0 [ 4198] 0 4198 18177 8742 26 4 0 1000 syz-executor.0 [ 4236] 0 4236 18210 8712 26 3 0 1000 syz-executor.0 [ 4275] 0 4275 18210 8712 26 3 0 1000 syz-executor.0 [ 4325] 0 4325 18210 8712 25 3 0 1000 syz-executor.0 [ 4844] 0 4844 18144 8741 26 5 0 1000 syz-executor.3 [ 4859] 0 4859 18144 8741 26 5 0 1000 syz-executor.3 [ 4992] 0 4992 18144 8741 26 5 0 1000 syz-executor.3 [ 5008] 0 5008 18144 8741 26 5 0 1000 syz-executor.3 [ 5036] 0 5036 18144 8741 26 5 0 1000 syz-executor.3 [ 5047] 0 5047 18144 8741 26 5 0 1000 syz-executor.3 [ 5048] 0 5048 18177 8742 26 4 0 1000 syz-executor.0 [ 5057] 0 5057 18144 8741 26 5 0 1000 syz-executor.3 [ 5124] 0 5124 18144 8700 24 4 0 1000 syz-executor.3 [ 5153] 0 5153 18144 8700 24 4 0 1000 syz-executor.3 [ 5158] 0 5158 18144 8699 24 3 0 1000 syz-executor.0 [ 5164] 0 5164 18144 8708 25 3 0 1000 syz-executor.0 [ 5181] 0 5181 18144 8700 24 4 0 1000 syz-executor.3 [ 5182] 0 5182 18144 8699 24 3 0 1000 syz-executor.0 [ 5201] 0 5201 18144 8699 24 3 0 1000 syz-executor.0 [ 5218] 0 5218 18144 8741 26 5 0 1000 syz-executor.3 [ 5229] 0 5229 18144 8699 24 3 0 1000 syz-executor.0 [ 5249] 0 5249 18144 8741 26 5 0 1000 syz-executor.3 [ 5254] 0 5254 18144 8699 24 3 0 1000 syz-executor.0 [ 5274] 0 5274 18144 8699 24 3 0 1000 syz-executor.0 [ 5292] 0 5292 18144 8699 24 3 0 1000 syz-executor.0 [ 5299] 0 5299 18144 8699 24 3 0 1000 syz-executor.0 [ 5323] 0 5323 18144 8699 24 3 0 1000 syz-executor.0 [ 5339] 0 5339 18144 8699 24 3 0 1000 syz-executor.0 [ 5367] 0 5367 18144 8699 24 3 0 1000 syz-executor.0 [ 5381] 0 5381 18144 8699 24 3 0 1000 syz-executor.0 [ 5409] 0 5409 18144 8699 24 3 0 1000 syz-executor.0 [ 5422] 0 5422 18144 8699 24 3 0 1000 syz-executor.0 [ 5496] 0 5496 18144 8699 24 3 0 1000 syz-executor.0 [ 5522] 0 5522 18144 8699 24 3 0 1000 syz-executor.0 [ 5535] 0 5535 18144 8699 24 3 0 1000 syz-executor.0 [ 5550] 0 5550 18144 8699 24 3 0 1000 syz-executor.0 [ 5568] 0 5568 18144 8699 24 3 0 1000 syz-executor.0 [ 5595] 0 5595 18144 8699 24 3 0 1000 syz-executor.0 [ 5609] 0 5609 18144 8699 24 3 0 1000 syz-executor.0 [ 5628] 0 5628 18144 8699 24 3 0 1000 syz-executor.0 [ 5649] 0 5649 18144 8699 24 3 0 1000 syz-executor.0 [ 5671] 0 5671 18144 8699 24 3 0 1000 syz-executor.0 [ 5687] 0 5687 18144 8699 24 3 0 1000 syz-executor.0 [ 5711] 0 5711 18144 8699 24 3 0 1000 syz-executor.0 [ 5723] 0 5723 18144 8699 24 3 0 1000 syz-executor.0 [ 5746] 0 5746 18144 8699 24 3 0 1000 syz-executor.0 [ 5770] 0 5770 18144 8699 24 3 0 1000 syz-executor.0 [ 5784] 0 5784 18144 8699 24 3 0 1000 syz-executor.0 [ 5804] 0 5804 18144 8699 24 3 0 1000 syz-executor.0 [ 5824] 0 5824 18144 8699 24 3 0 1000 syz-executor.0 [ 5843] 0 5843 18144 8699 24 3 0 1000 syz-executor.0 [ 5862] 0 5862 18144 8699 24 3 0 1000 syz-executor.0 [ 5877] 0 5877 18144 8699 24 3 0 1000 syz-executor.0 [ 5905] 0 5905 18144 8699 24 3 0 1000 syz-executor.0 [ 5918] 0 5918 18177 8742 26 4 0 1000 syz-executor.2 [ 5923] 0 5923 18144 8699 24 3 0 1000 syz-executor.0 [ 5940] 0 5940 18144 8699 24 3 0 1000 syz-executor.0 [ 5942] 0 5942 18144 8740 26 4 0 1000 syz-executor.2 [ 5954] 0 5954 18144 8699 24 3 0 1000 syz-executor.0 [ 5964] 0 5964 18144 8740 26 4 0 1000 syz-executor.2 [ 5969] 0 5969 18144 8699 24 3 0 1000 syz-executor.0 [ 5988] 0 5988 18144 8740 26 4 0 1000 syz-executor.2 [ 5995] 0 5995 18144 8699 24 3 0 1000 syz-executor.0 [ 6012] 0 6012 18144 8740 26 4 0 1000 syz-executor.2 [ 6015] 0 6015 18144 8699 24 3 0 1000 syz-executor.0 [ 6025] 0 6025 18144 8740 26 4 0 1000 syz-executor.2 [ 6029] 0 6029 18144 8699 24 3 0 1000 syz-executor.0 [ 6043] 0 6043 18144 8740 26 4 0 1000 syz-executor.2 [ 6044] 0 6044 18144 8699 24 3 0 1000 syz-executor.0 [ 6061] 0 6061 18144 8699 24 3 0 1000 syz-executor.0 [ 6063] 0 6063 18144 8740 26 4 0 1000 syz-executor.2 [ 6082] 0 6082 18144 8740 26 4 0 1000 syz-executor.2 [ 6083] 0 6083 18144 8699 24 3 0 1000 syz-executor.0 [ 6103] 0 6103 18144 8699 24 3 0 1000 syz-executor.0 [ 6104] 0 6104 18144 8740 26 4 0 1000 syz-executor.2 [ 6148] 0 6148 18144 8740 26 4 0 1000 syz-executor.2 [ 6167] 0 6167 18144 8740 26 4 0 1000 syz-executor.2 [ 6185] 0 6185 18144 8740 26 4 0 1000 syz-executor.2 [ 6223] 0 6223 18144 8741 26 5 0 1000 syz-executor.3 [ 6242] 0 6242 18144 8741 26 5 0 1000 syz-executor.3 [ 6270] 0 6270 18144 8741 26 5 0 1000 syz-executor.3 [ 6289] 0 6289 18144 8741 26 5 0 1000 syz-executor.3 [ 6302] 0 6302 18144 8741 26 5 0 1000 syz-executor.3 [ 6318] 0 6318 18144 8740 26 4 0 1000 syz-executor.2 [ 6319] 0 6319 18144 8741 26 5 0 1000 syz-executor.3 [ 6337] 0 6337 18144 8740 26 4 0 1000 syz-executor.2 [ 6349] 0 6349 18144 8740 26 4 0 1000 syz-executor.2 [ 6363] 0 6363 18144 8740 26 4 0 1000 syz-executor.2 [ 6379] 0 6379 18144 8740 26 4 0 1000 syz-executor.2 [ 6396] 0 6396 18144 8740 26 4 0 1000 syz-executor.2 [ 6417] 0 6417 18144 8740 26 4 0 1000 syz-executor.2 [ 6431] 0 6431 18144 8740 26 4 0 1000 syz-executor.2 [ 6446] 0 6446 18144 8740 26 4 0 1000 syz-executor.2 [ 6468] 0 6468 18144 8708 25 3 0 1000 syz-executor.2 [ 6484] 0 6484 18144 8708 25 3 0 1000 syz-executor.2 [ 6512] 0 6512 18144 8708 25 3 0 1000 syz-executor.2 [ 6525] 0 6525 18144 8740 26 4 0 1000 syz-executor.2 [ 6547] 0 6547 18144 8740 26 4 0 1000 syz-executor.2 [ 6565] 0 6565 18144 8740 26 4 0 1000 syz-executor.2 [ 6606] 0 6606 18144 8740 26 4 0 1000 syz-executor.2 [ 6621] 0 6621 18144 8740 26 4 0 1000 syz-executor.2 [ 6630] 0 6630 18144 8740 26 4 0 1000 syz-executor.2 [ 6647] 0 6647 18144 8740 26 4 0 1000 syz-executor.2 [ 6674] 0 6674 18144 8740 26 4 0 1000 syz-executor.2 [ 6692] 0 6692 18144 8740 26 4 0 1000 syz-executor.2 [ 6707] 0 6707 18144 8740 26 4 0 1000 syz-executor.2 [ 6725] 0 6725 18144 8740 26 4 0 1000 syz-executor.2 [ 6771] 0 6771 18144 8740 26 4 0 1000 syz-executor.2 [ 6789] 0 6789 18144 8740 26 4 0 1000 syz-executor.2 [ 6813] 0 6813 18144 8740 26 4 0 1000 syz-executor.2 [ 6832] 0 6832 18144 8740 26 4 0 1000 syz-executor.2 [ 6863] 0 6863 18144 8740 26 4 0 1000 syz-executor.2 [ 6881] 0 6881 18144 8740 26 4 0 1000 syz-executor.2 [ 6904] 0 6904 18144 8740 26 4 0 1000 syz-executor.2 [ 6917] 0 6917 18144 8740 26 4 0 1000 syz-executor.2 [ 6927] 0 6927 18144 8740 26 4 0 1000 syz-executor.2 [ 6937] 0 6937 18144 8740 26 4 0 1000 syz-executor.2 [ 6954] 0 6954 18144 8740 26 4 0 1000 syz-executor.2 [ 6978] 0 6978 18144 8740 26 4 0 1000 syz-executor.2 [ 6993] 0 6993 18144 8740 26 4 0 1000 syz-executor.2 [ 7014] 0 7014 18144 8740 26 4 0 1000 syz-executor.2 [ 7027] 0 7027 18144 8740 26 4 0 1000 syz-executor.2 [ 7036] 0 7036 18144 8740 26 4 0 1000 syz-executor.2 [ 7045] 0 7045 18144 8740 26 4 0 1000 syz-executor.2 [ 7066] 0 7066 18144 8740 26 4 0 1000 syz-executor.2 [ 7073] 0 7073 18144 8740 26 4 0 1000 syz-executor.2 [ 7082] 0 7082 18144 8740 26 4 0 1000 syz-executor.2 [ 7095] 0 7095 18144 8740 26 4 0 1000 syz-executor.2 [ 7113] 0 7113 18144 8740 26 4 0 1000 syz-executor.2 [ 7124] 0 7124 18144 8740 26 4 0 1000 syz-executor.2 [ 7682] 0 7682 18144 8741 26 4 0 1000 syz-executor.1 [ 7701] 0 7701 18144 8741 26 4 0 1000 syz-executor.1 [ 7726] 0 7726 18144 8741 26 4 0 1000 syz-executor.1 [ 7748] 0 7748 18144 8741 26 4 0 1000 syz-executor.1 [ 7771] 0 7771 18144 8741 26 4 0 1000 syz-executor.1 [ 7803] 0 7803 18144 8741 26 4 0 1000 syz-executor.1 [ 7819] 0 7819 18177 8711 26 3 0 1000 syz-executor.1 [ 7841] 0 7841 18177 8711 26 3 0 1000 syz-executor.1 [ 7887] 0 7887 18177 8711 26 3 0 1000 syz-executor.1 [ 8838] 0 8825 18177 2 26 4 0 1000 syz-executor.5 [ 8826] 0 8826 18144 8741 26 5 0 1000 syz-executor.3 Out of memory: Kill process 4183 (syz-executor.0) score 1004 or sacrifice child Killed process 4183 (syz-executor.0) total-vm:72708kB, anon-rss:152kB, file-rss:34816kB, 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: 8672 Comm: syz-executor.1 Tainted: G W 4.9.189+ #22 ffff8801d2dc7328 ffffffff81b65c01 ffff8801d2dc7680 ffffffff833f14b0 00000000000003e8 ffff8801d2dc7698 0000000000000000 ffff8801d2dc73a8 ffffffff81506abb 0000000000000000 00000000000003e8 ffffffff82828535 Call Trace: [<000000007a9a811f>] __dump_stack lib/dump_stack.c:15 [inline] [<000000007a9a811f>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000049fb2eb>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<0000000055805f06>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000486d8547>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000486d8547>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<00000000d00b5ef7>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<00000000d00b5ef7>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<00000000d00b5ef7>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<0000000072271167>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000072271167>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000072271167>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000072271167>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<0000000072271167>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<000000008e93a3a1>] find_or_create_page include/linux/pagemap.h:310 [inline] [<000000008e93a3a1>] ext4_mb_load_buddy_gfp+0x90a/0x1100 fs/ext4/mballoc.c:1172 [<000000006be9ac6a>] ext4_discard_preallocations+0xa2a/0xf80 fs/ext4/mballoc.c:4043 [<000000002a67d2e3>] ext4_release_file+0x263/0x2e0 fs/ext4/file.c:51 [<00000000cfe247ec>] __fput+0x274/0x720 fs/file_table.c:208 [<0000000074dcff40>] ____fput+0x16/0x20 fs/file_table.c:244 [<0000000023d7ebb7>] task_work_run+0x108/0x180 kernel/task_work.c:116 [<0000000077bb03f9>] exit_task_work include/linux/task_work.h:21 [inline] [<0000000077bb03f9>] do_exit+0x78f/0x2aa0 kernel/exit.c:842 [<00000000ce481e24>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<000000003974895d>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<0000000060777a7c>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<000000006a6d71f9>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<000000000d4ce3a5>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<000000000d4ce3a5>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<000000000d4ce3a5>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<0000000034d1e447>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:70988 inactive_anon:42 isolated_anon:0