lowmemorykiller: Killing 'syz-executor.4' (15310) (tgid 15310), adj 1000, to free 35996kB on behalf of 'syz-executor.5' (19726) because cache 63612kB is below limit 65536kB for oom_score_adj 12 Free memory is -13292kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:905 in_atomic(): 0, irqs_disabled(): 0, pid: 19726, name: syz-executor.5 2 locks held by syz-executor.5/19726: #0: (shrinker_rwsem){++++..}, at: [<000000005da2847c>] shrink_slab.part.0+0xb2/0xa20 mm/vmscan.c:472 #1: (rcu_read_lock){......}, at: [<00000000fc2d2504>] lowmem_scan+0x242/0xb50 drivers/staging/android/lowmemorykiller.c:272 Preemption disabled at: [<00000000daa11735>] spin_lock include/linux/spinlock.h:302 [inline] [<00000000daa11735>] task_lock include/linux/sched.h:3217 [inline] [<00000000daa11735>] get_task_mm+0x20/0xc0 kernel/fork.c:1012 CPU: 1 PID: 19726 Comm: syz-executor.5 Not tainted 4.9.189+ #21 ffff8801d1b9f258 ffffffff81b65c01 0000000000000000 0000000000000001 ffff8801c7b0c740 ffffffff810d1010 ffff8801c7b0c740 ffff8801d1b9f290 ffffffff814018f3 ffff8801c7b0c740 ffffffff82a39fc0 0000000000000389 Call Trace: [<000000001a84eccf>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a84eccf>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<0000000091909a35>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000c8d7fc99>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<00000000245db1a6>] mmput+0x28/0x370 kernel/fork.c:905 [<000000002644fc62>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000987968e1>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<00000000631ff1aa>] do_shrink_slab mm/vmscan.c:399 [inline] [<00000000631ff1aa>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000006edeacf8>] shrink_slab mm/vmscan.c:466 [inline] [<000000006edeacf8>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<000000005b63fa54>] shrink_zones mm/vmscan.c:2751 [inline] [<000000005b63fa54>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<000000005b63fa54>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<00000000f7cfba8b>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<00000000f7cfba8b>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<00000000f7cfba8b>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<00000000f7cfba8b>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<0000000068f87cac>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000068f87cac>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000068f87cac>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000068f87cac>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<0000000068f87cac>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<00000000deb439a8>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000deb439a8>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000deb439a8>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000ce893c72>] xt_alloc_entry_offsets+0x44/0x50 net/netfilter/x_tables.c:758 [<000000002b26c779>] translate_table+0x215/0x1650 net/ipv4/netfilter/ip_tables.c:705 [<0000000046a38402>] do_replace net/ipv4/netfilter/ip_tables.c:1157 [inline] [<0000000046a38402>] do_ipt_set_ctl+0x2d4/0x470 net/ipv4/netfilter/ip_tables.c:1693 [<000000000b14fabc>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<000000000b14fabc>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<000000008afa284c>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<000000008afa284c>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000069a1cc12>] udp_setsockopt+0x4e/0x90 net/ipv4/udp.c:2114 [<00000000de5addc9>] ipv6_setsockopt+0xa4/0x140 net/ipv6/ipv6_sockglue.c:912 [<000000000922d6ed>] tcp_setsockopt net/ipv4/tcp.c:2759 [inline] [<000000000922d6ed>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2753 [<000000003b9bcd70>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<0000000095f8ed44>] SYSC_setsockopt net/socket.c:1786 [inline] [<0000000095f8ed44>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<00000000f9968d78>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000635d580b>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb ================================= [ INFO: inconsistent lock state ] 4.9.189+ #21 Tainted: G W --------------------------------- inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-R} usage. syz-executor.5/19726 [HC0[0]:SC0[0]:HE1:SE1] takes: (&mm->mmap_sem){+++++?}, at: [<0000000043306888>] 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: 1774373 hardirqs last enabled at (1774373): [<00000000b5bef202>] dump_stack+0x100/0x120 lib/dump_stack.c:56 hardirqs last disabled at (1774372): [<0000000033162ac0>] dump_stack+0x2c/0x120 lib/dump_stack.c:38 softirqs last enabled at (1767248): [<00000000b6fcad65>] __do_softirq+0x474/0x964 kernel/softirq.c:314 softirqs last disabled at (1767241): [<00000000b5a7ebbb>] invoke_softirq kernel/softirq.c:368 [inline] softirqs last disabled at (1767241): [<00000000b5a7ebbb>] 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.5/19726: #0: (shrinker_rwsem){++++..}, at: [<000000005da2847c>] shrink_slab.part.0+0xb2/0xa20 mm/vmscan.c:472 #1: (rcu_read_lock){......}, at: [<00000000fc2d2504>] lowmem_scan+0x242/0xb50 drivers/staging/android/lowmemorykiller.c:272 #2: (lmk_event_lock){+.+.-.}, at: [<00000000244bc8a6>] spin_lock include/linux/spinlock.h:302 [inline] #2: (lmk_event_lock){+.+.-.}, at: [<00000000244bc8a6>] handle_lmk_event+0xfb/0x8a0 drivers/staging/android/lowmemorykiller.c:114 stack backtrace: CPU: 1 PID: 19726 Comm: syz-executor.5 Tainted: G W 4.9.189+ #21 ffff8801d1b9efa0 ffffffff81b65c01 00000000000000f0 ffff8801c7b0c740 ffffffff83caf950 ffff8801c7b0d088 ffffffff84250fc0 ffff8801d1b9f018 ffffffff81408330 0000000000000000 ffffffff00000001 0000000000000001 Call Trace: [<000000001a84eccf>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a84eccf>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000a97b2b3f>] print_usage_bug kernel/locking/lockdep.c:2387 [inline] [<00000000a97b2b3f>] print_usage_bug.cold+0x452/0x5a2 kernel/locking/lockdep.c:2354 [<000000003b9c72c1>] valid_state kernel/locking/lockdep.c:2400 [inline] [<000000003b9c72c1>] mark_lock_irq kernel/locking/lockdep.c:2602 [inline] [<000000003b9c72c1>] mark_lock+0x6c7/0x12e0 kernel/locking/lockdep.c:3065 [<00000000502fcb41>] mark_irqflags kernel/locking/lockdep.c:2958 [inline] [<00000000502fcb41>] __lock_acquire+0x5be/0x4390 kernel/locking/lockdep.c:3302 [<00000000d666b0ae>] lock_acquire+0x133/0x3d0 kernel/locking/lockdep.c:3756 [<000000005dc450d7>] down_read+0x44/0xb0 kernel/locking/rwsem.c:22 [<0000000043306888>] get_cmdline+0xa3/0x2d0 mm/util.c:641 [<00000000eb54d8c2>] handle_lmk_event+0x13c/0x8a0 drivers/staging/android/lowmemorykiller.c:128 [<00000000987968e1>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<00000000631ff1aa>] do_shrink_slab mm/vmscan.c:399 [inline] [<00000000631ff1aa>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<00000000635d580b>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb oom_reaper: reaped process 19726 (syz-executor.5), now anon-rss:0kB, file-rss:16kB, shmem-rss:0kB syz-executor.5 invoked oom-killer: gfp_mask=0x24200ca(GFP_HIGHUSER_MOVABLE), nodemask=0, order=0, oom_score_adj=0 ffff8801a848f6f0 ffffffff81b65c01 ffff8801a848fa48 ffffffff833f14b0 lowmem_reserve[]: 0 3505 3505 syz-executor.5: vmalloc: allocation failure, allocated 3606003712 of 4077756416 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 19726 Comm: syz-executor.5 Tainted: G W 4.9.189+ #21 ffff8801d1b9f858 ffffffff81b65c01 1ffff1003a373f0d dffffc0000000000 ffffffff82aab240 0000000000000000 0000000000400000 ffff8801d1b9f980 ffffffff81507d73 0000000041b58ab3 ffffffff82e3b1e8 ffffffff81431920 Call Trace: [<000000001a84eccf>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a84eccf>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000004cd52279>] warn_alloc.cold+0x76/0x93 mm/page_alloc.c:3069 [<000000001708b118>] __vmalloc_area_node mm/vmalloc.c:1665 [inline] [<000000001708b118>] __vmalloc_node_range+0x3ff/0x610 mm/vmalloc.c:1706 [<00000000deb439a8>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000deb439a8>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000deb439a8>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000ce893c72>] xt_alloc_entry_offsets+0x44/0x50 net/netfilter/x_tables.c:758 [<000000002b26c779>] translate_table+0x215/0x1650 net/ipv4/netfilter/ip_tables.c:705 [<0000000046a38402>] do_replace net/ipv4/netfilter/ip_tables.c:1157 [inline] [<0000000046a38402>] do_ipt_set_ctl+0x2d4/0x470 net/ipv4/netfilter/ip_tables.c:1693 [<000000000b14fabc>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<000000000b14fabc>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<000000008afa284c>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<000000008afa284c>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000069a1cc12>] udp_setsockopt+0x4e/0x90 net/ipv4/udp.c:2114 [<00000000de5addc9>] ipv6_setsockopt+0xa4/0x140 net/ipv6/ipv6_sockglue.c:912 [<000000000922d6ed>] tcp_setsockopt net/ipv4/tcp.c:2759 [inline] [<000000000922d6ed>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2753 [<000000003b9bcd70>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<0000000095f8ed44>] SYSC_setsockopt net/socket.c:1786 [inline] [<0000000095f8ed44>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<00000000f9968d78>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000635d580b>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:60094 inactive_anon:42 isolated_anon:0 active_file:23 inactive_file:26 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:5745 slab_unreclaimable:61111 mapped:52249 shmem:48 pagetables:1520 bounce:0 free:22 free_pcp:81 free_cma:0 Node 0 active_anon:240376kB inactive_anon:168kB active_file:92kB inactive_file:104kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208996kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:16kB min:4696kB low:7712kB high:10728kB active_anon:60kB inactive_anon:12kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:160kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB Normal free:72kB min:5580kB low:9168kB high:12756kB active_anon:240316kB inactive_anon:156kB active_file:92kB inactive_file:104kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:22980kB slab_unreclaimable:244284kB kernel_stack:5024kB pagetables:6080kB bounce:0kB free_pcp:204kB local_pcp:84kB 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 7*8kB (UM) 6*16kB (UM) 4*32kB (UM) 3*64kB (U) 4*128kB (UM) 3*256kB (UM) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1752kB 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 5380 180 16 3 0 -1000 udevd [ 579] 0 579 5379 174 15 3 0 -1000 udevd [ 580] 0 580 5383 174 15 3 0 -1000 udevd [ 1762] 0 1762 2492 573 8 3 0 0 dhclient [ 1892] 0 1892 14231 108 23 4 0 0 rsyslogd [ 1948] 0 1948 4724 50 15 3 0 0 cron [ 1966] 0 1966 3734 44 11 3 0 0 mcstransd [ 1968] 0 1968 12926 1231 27 3 0 0 restorecond [ 1994] 0 1994 12489 152 29 3 0 -1000 sshd [ 2024] 0 2024 3648 39 13 3 0 0 getty [ 2040] 0 2040 17820 196 41 3 0 0 sshd [ 2042] 0 2042 113761 55433 184 6 0 0 syz-fuzzer [ 2089] 0 2089 18112 17 23 3 0 0 syz-executor.5 [ 2090] 0 2090 18112 15 23 3 0 0 syz-executor.0 [ 2091] 0 2091 18112 15 22 3 0 0 syz-executor.1 [ 2092] 0 2092 18112 16 23 3 0 0 syz-executor.4 [ 2093] 0 2093 18112 16 23 3 0 0 syz-executor.2 [ 2095] 0 2095 18111 8736 24 4 0 0 syz-executor.0 [ 2096] 0 2096 18111 8738 24 4 0 0 syz-executor.5 [ 2098] 0 2098 18111 8736 24 4 0 0 syz-executor.4 [ 2109] 0 2109 18111 8736 23 4 0 0 syz-executor.1 [ 2110] 0 2110 18111 8737 24 4 0 0 syz-executor.2 [ 3000] 0 3000 5364 170 15 3 0 -1000 udevd [ 3029] 0 3029 5364 170 15 3 0 -1000 udevd [ 3091] 0 3091 18144 8746 26 4 0 1000 syz-executor.4 [ 3283] 0 3283 18144 8713 24 3 0 1000 syz-executor.2 [ 3973] 0 3973 5364 170 15 3 0 -1000 udevd [ 6891] 0 6891 5379 182 15 3 0 -1000 udevd [ 6918] 0 6918 18144 8716 24 3 0 1000 syz-executor.1 [15943] 0 15943 18144 8751 26 4 0 1000 syz-executor.5 [15956] 0 15956 18144 8751 26 4 0 1000 syz-executor.5 [16384] 0 16384 18144 8751 26 4 0 1000 syz-executor.5 [16385] 0 16385 18177 8749 24 4 0 1000 syz-executor.1 [16394] 0 16394 18144 8751 26 4 0 1000 syz-executor.5 [16409] 0 16409 18144 8751 26 4 0 1000 syz-executor.5 [16419] 0 16419 18144 8751 26 4 0 1000 syz-executor.5 [16433] 0 16433 18144 8751 26 4 0 1000 syz-executor.5 [16450] 0 16450 18144 8751 26 4 0 1000 syz-executor.5 [16495] 0 16495 18144 8707 24 3 0 1000 syz-executor.5 [16506] 0 16506 18144 8707 24 3 0 1000 syz-executor.5 [16534] 0 16534 18144 8707 24 3 0 1000 syz-executor.5 [16551] 0 16551 18144 8751 26 4 0 1000 syz-executor.5 [16568] 0 16568 18144 8751 26 4 0 1000 syz-executor.5 [16583] 0 16583 18144 8751 26 4 0 1000 syz-executor.5 [18449] 0 18449 18177 8753 26 4 0 1000 syz-executor.5 [18458] 0 18458 18177 8753 26 4 0 1000 syz-executor.5 [18470] 0 18470 18177 8753 26 4 0 1000 syz-executor.5 [18478] 0 18478 18144 8751 26 4 0 1000 syz-executor.5 [18482] 0 18482 18144 8751 26 4 0 1000 syz-executor.5 [18505] 0 18505 18144 8751 26 4 0 1000 syz-executor.5 [18523] 0 18523 18144 8751 26 4 0 1000 syz-executor.5 [19116] 0 19116 18112 16 23 3 0 0 syz-executor.3 [19117] 0 19117 18111 8737 24 4 0 0 syz-executor.3 [19286] 0 19286 18144 8748 26 4 0 1000 syz-executor.3 [19557] 0 19557 3648 42 13 3 0 0 getty [19558] 0 19558 3648 44 13 3 0 0 getty [19559] 0 19559 3648 43 13 3 0 0 getty [19560] 0 19560 3648 42 13 3 0 0 getty [19561] 0 19561 3648 43 13 3 0 0 getty [19562] 0 19562 3648 42 13 3 0 0 getty [19726] 0 19724 18210 4 30 4 0 1000 syz-executor.5 Out of memory: Kill process 18449 (syz-executor.5) score 1004 or sacrifice child Killed process 18449 (syz-executor.5) total-vm:72708kB, anon-rss:168kB, file-rss:34844kB, 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: 2056 Comm: syz-fuzzer Tainted: G W 4.9.189+ #21 ffff8801d27a76f0 ffffffff81b65c01 ffff8801d27a7a48 ffffffff833f14b0 0000000000000000 ffff8801d27a7a60 0000000000000000 ffff8801d27a7770 ffffffff81506abb 0000000000000000 0000000000000000 ffffffff828284d5 Call Trace: [<000000001a84eccf>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a84eccf>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000000f03dcfc>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000355c66d0>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000004518dca5>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000004518dca5>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<00000000723ca619>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<00000000723ca619>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<00000000723ca619>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<00000000f3f0d66e>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000f3f0d66e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000f3f0d66e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000f3f0d66e>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<00000000f3f0d66e>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<000000001a17b9fa>] filemap_fault+0xb1f/0x1360 mm/filemap.c:2331 [<00000000bcca249c>] ext4_filemap_fault+0x72/0xa0 fs/ext4/inode.c:5854 [<0000000044f6b1f9>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<0000000056432a6e>] do_read_fault mm/memory.c:3202 [inline] [<0000000056432a6e>] do_fault mm/memory.c:3338 [inline] [<0000000056432a6e>] handle_pte_fault mm/memory.c:3547 [inline] [<0000000056432a6e>] __handle_mm_fault mm/memory.c:3634 [inline] [<0000000056432a6e>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<0000000047c95baa>] __do_page_fault+0x3f0/0xa60 arch/x86/mm/fault.c:1404 [<0000000097bf7671>] do_page_fault+0x28/0x30 arch/x86/mm/fault.c:1467 [<00000000f029cb75>] page_fault+0x25/0x30 arch/x86/entry/entry_64.S:956 Mem-Info: active_anon:60069 inactive_anon:42 isolated_anon:0 active_file:23 inactive_file:26 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:5745 slab_unreclaimable:60900 mapped:52249 shmem:48 pagetables:1483 bounce:0 free:153 free_pcp:220 free_cma:0 Node 0 active_anon:240276kB inactive_anon:168kB active_file:92kB inactive_file:104kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208996kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:16kB min:4696kB low:7712kB high:10728kB active_anon:60kB inactive_anon:12kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:160kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB Normal free:596kB min:5580kB low:9168kB high:12756kB active_anon:240216kB inactive_anon:156kB active_file:92kB inactive_file:104kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:22980kB slab_unreclaimable:243440kB kernel_stack:5024kB pagetables:5932kB bounce:0kB free_pcp:760kB local_pcp:120kB 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 5380 180 16 3 0 -1000 udevd [ 579] 0 579 5379 174 15 3 0 -1000 udevd [ 580] 0 580 5383 174 15 3 0 -1000 udevd [ 1762] 0 1762 2492 573 8 3 0 0 dhclient [ 1892] 0 1892 14231 108 23 4 0 0 rsyslogd [ 1948] 0 1948 4724 50 15 3 0 0 cron [ 1966] 0 1966 3734 44 11 3 0 0 mcstransd [ 1968] 0 1968 12926 1231 27 3 0 0 restorecond [ 1994] 0 1994 12489 152 29 3 0 -1000 sshd [ 2024] 0 2024 3648 39 13 3 0 0 getty [ 2040] 0 2040 17820 196 41 3 0 0 sshd [ 2042] 0 2042 113761 55433 184 6 0 0 syz-fuzzer [ 2089] 0 2089 18112 17 23 3 0 0 syz-executor.5 [ 2090] 0 2090 18112 15 23 3 0 0 syz-executor.0 [ 2091] 0 2091 18112 15 22 3 0 0 syz-executor.1 [ 2092] 0 2092 18112 16 23 3 0 0 syz-executor.4 [ 2093] 0 2093 18112 16 23 3 0 0 syz-executor.2 [ 2095] 0 2095 18111 8736 24 4 0 0 syz-executor.0 [ 2096] 0 2096 18111 8738 24 4 0 0 syz-executor.5 [ 2098] 0 2098 18111 8736 24 4 0 0 syz-executor.4 [ 2109] 0 2109 18111 8736 23 4 0 0 syz-executor.1 [ 2110] 0 2110 18111 8737 24 4 0 0 syz-executor.2 [ 3000] 0 3000 5364 170 15 3 0 -1000 udevd [ 3029] 0 3029 5364 170 15 3 0 -1000 udevd [ 3091] 0 3091 18144 8746 26 4 0 1000 syz-executor.4 [ 3283] 0 3283 18144 8713 24 3 0 1000 syz-executor.2 [ 3973] 0 3973 5364 170 15 3 0 -1000 udevd [ 6891] 0 6891 5379 182 15 3 0 -1000 udevd [ 6918] 0 6918 18144 8716 24 3 0 1000 syz-executor.1 [15943] 0 15943 18144 8751 26 4 0 1000 syz-executor.5 [15956] 0 15956 18144 8751 26 4 0 1000 syz-executor.5 [16384] 0 16384 18144 8751 26 4 0 1000 syz-executor.5 [16385] 0 16385 18177 8749 24 4 0 1000 syz-executor.1 [16394] 0 16394 18144 8751 26 4 0 1000 syz-executor.5 [16409] 0 16409 18144 8751 26 4 0 1000 syz-executor.5 [16419] 0 16419 18144 8751 26 4 0 1000 syz-executor.5 [16433] 0 16433 18144 8751 26 4 0 1000 syz-executor.5 [16450] 0 16450 18144 8751 26 4 0 1000 syz-executor.5 [16495] 0 16495 18144 8707 24 3 0 1000 syz-executor.5 [16506] 0 16506 18144 8707 24 3 0 1000 syz-executor.5 [16534] 0 16534 18144 8707 24 3 0 1000 syz-executor.5 [16551] 0 16551 18144 8751 26 4 0 1000 syz-executor.5 [16568] 0 16568 18144 8751 26 4 0 1000 syz-executor.5 [16583] 0 16583 18144 8751 26 4 0 1000 syz-executor.5 [18458] 0 18458 18177 8753 26 4 0 1000 syz-executor.5 [18470] 0 18470 18177 8753 26 4 0 1000 syz-executor.5 [18478] 0 18478 18144 8751 26 4 0 1000 syz-executor.5 [18482] 0 18482 18144 8751 26 4 0 1000 syz-executor.5 [18505] 0 18505 18144 8751 26 4 0 1000 syz-executor.5 [18523] 0 18523 18144 8751 26 4 0 1000 syz-executor.5 [19116] 0 19116 18112 16 23 3 0 0 syz-executor.3 [19117] 0 19117 18111 8737 24 4 0 0 syz-executor.3 [19286] 0 19286 18144 8748 26 4 0 1000 syz-executor.3 [19557] 0 19557 3648 42 13 3 0 0 getty [19558] 0 19558 3648 44 13 3 0 0 getty [19559] 0 19559 3648 43 13 3 0 0 getty [19560] 0 19560 3648 42 13 3 0 0 getty [19561] 0 19561 3648 43 13 3 0 0 getty [19562] 0 19562 3648 42 13 3 0 0 getty [19726] 0 19724 18210 4 30 4 0 1000 syz-executor.5 Out of memory: Kill process 18458 (syz-executor.5) score 1004 or sacrifice child Killed process 18458 (syz-executor.5) total-vm:72708kB, anon-rss:168kB, file-rss:34844kB, shmem-rss:0kB syz-executor.5 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 19775 Comm: syz-executor.5 Tainted: G W 4.9.189+ #21 ffff88015674f580 ffffffff81b65c01 ffff88015674f8d8 ffffffff833f14b0 00000000000003e8 ffff88015674f8f0 0000000000000000 ffff88015674f600 ffffffff81506abb 0000000000000000 00000000000003e8 ffffffff828284d5 Call Trace: [<000000001a84eccf>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a84eccf>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000000f03dcfc>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000355c66d0>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000004518dca5>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000004518dca5>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<00000000723ca619>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<00000000723ca619>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<00000000723ca619>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<0000000068f87cac>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000068f87cac>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000068f87cac>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000068f87cac>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<0000000068f87cac>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<00000000deb439a8>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000deb439a8>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000deb439a8>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000ce893c72>] xt_alloc_entry_offsets+0x44/0x50 net/netfilter/x_tables.c:758 [<000000002b26c779>] translate_table+0x215/0x1650 net/ipv4/netfilter/ip_tables.c:705 [<0000000046a38402>] do_replace net/ipv4/netfilter/ip_tables.c:1157 [inline] [<0000000046a38402>] do_ipt_set_ctl+0x2d4/0x470 net/ipv4/netfilter/ip_tables.c:1693 [<000000000b14fabc>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<000000000b14fabc>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<000000008afa284c>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<000000008afa284c>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000069a1cc12>] udp_setsockopt+0x4e/0x90 net/ipv4/udp.c:2114 [<00000000de5addc9>] ipv6_setsockopt+0xa4/0x140 net/ipv6/ipv6_sockglue.c:912 [<000000000922d6ed>] tcp_setsockopt net/ipv4/tcp.c:2759 [inline] [<000000000922d6ed>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2753 [<000000003b9bcd70>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<0000000095f8ed44>] SYSC_setsockopt net/socket.c:1786 [inline] [<0000000095f8ed44>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<00000000f9968d78>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000635d580b>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:60044 inactive_anon:42 isolated_anon:0 active_file:23 inactive_file:26 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:5745 slab_unreclaimable:60900 mapped:52249 shmem:48 pagetables:1446 bounce:0 free:153 free_pcp:281 free_cma:0 Node 0 active_anon:240176kB inactive_anon:168kB active_file:92kB inactive_file:104kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208996kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:16kB min:4696kB low:7712kB high:10728kB active_anon:60kB inactive_anon:12kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:160kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB Normal free:596kB min:5580kB low:9168kB high:12756kB active_anon:240116kB inactive_anon:156kB active_file:92kB inactive_file:104kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:22980kB slab_unreclaimable:243440kB kernel_stack:5024kB pagetables:5784kB bounce:0kB free_pcp:1004kB local_pcp:364kB 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 5380 180 16 3 0 -1000 udevd [ 579] 0 579 5379 174 15 3 0 -1000 udevd [ 580] 0 580 5383 174 15 3 0 -1000 udevd [ 1762] 0 1762 2492 573 8 3 0 0 dhclient [ 1892] 0 1892 14231 108 23 4 0 0 rsyslogd [ 1948] 0 1948 4724 50 15 3 0 0 cron [ 1966] 0 1966 3734 44 11 3 0 0 mcstransd [ 1968] 0 1968 12926 1231 27 3 0 0 restorecond [ 1994] 0 1994 12489 152 29 3 0 -1000 sshd [ 2024] 0 2024 3648 39 13 3 0 0 getty [ 2040] 0 2040 17820 196 41 3 0 0 sshd [ 2042] 0 2042 113761 55433 184 6 0 0 syz-fuzzer [ 2089] 0 2089 18112 17 23 3 0 0 syz-executor.5 [ 2090] 0 2090 18112 15 23 3 0 0 syz-executor.0 [ 2091] 0 2091 18112 15 22 3 0 0 syz-executor.1 [ 2092] 0 2092 18112 16 23 3 0 0 syz-executor.4 [ 2093] 0 2093 18112 16 23 3 0 0 syz-executor.2 [ 2095] 0 2095 18111 8736 24 4 0 0 syz-executor.0 [ 2096] 0 2096 18111 8738 24 4 0 0 syz-executor.5 [ 2098] 0 2098 18111 8736 24 4 0 0 syz-executor.4 [ 2109] 0 2109 18111 8736 23 4 0 0 syz-executor.1 [ 2110] 0 2110 18111 8737 24 4 0 0 syz-executor.2 [ 3000] 0 3000 5364 170 15 3 0 -1000 udevd [ 3029] 0 3029 5364 170 15 3 0 -1000 udevd [ 3091] 0 3091 18144 8746 26 4 0 1000 syz-executor.4 [ 3283] 0 3283 18144 8713 24 3 0 1000 syz-executor.2 [ 3973] 0 3973 5364 170 15 3 0 -1000 udevd [ 6891] 0 6891 5379 182 15 3 0 -1000 udevd [ 6918] 0 6918 18144 8716 24 3 0 1000 syz-executor.1 [15943] 0 15943 18144 8751 26 4 0 1000 syz-executor.5 [15956] 0 15956 18144 8751 26 4 0 1000 syz-executor.5 [16384] 0 16384 18144 8751 26 4 0 1000 syz-executor.5 [16385] 0 16385 18177 8749 24 4 0 1000 syz-executor.1 [16394] 0 16394 18144 8751 26 4 0 1000 syz-executor.5 [16409] 0 16409 18144 8751 26 4 0 1000 syz-executor.5 [16419] 0 16419 18144 8751 26 4 0 1000 syz-executor.5 [16433] 0 16433 18144 8751 26 4 0 1000 syz-executor.5 [16450] 0 16450 18144 8751 26 4 0 1000 syz-executor.5 [16495] 0 16495 18144 8707 24 3 0 1000 syz-executor.5 [16506] 0 16506 18144 8707 24 3 0 1000 syz-executor.5 [16534] 0 16534 18144 8707 24 3 0 1000 syz-executor.5 [16551] 0 16551 18144 8751 26 4 0 1000 syz-executor.5 [16568] 0 16568 18144 8751 26 4 0 1000 syz-executor.5 [16583] 0 16583 18144 8751 26 4 0 1000 syz-executor.5 [18470] 0 18470 18177 8753 26 4 0 1000 syz-executor.5 [18478] 0 18478 18144 8751 26 4 0 1000 syz-executor.5 [18482] 0 18482 18144 8751 26 4 0 1000 syz-executor.5 [18505] 0 18505 18144 8751 26 4 0 1000 syz-executor.5 [18523] 0 18523 18144 8751 26 4 0 1000 syz-executor.5 [19116] 0 19116 18112 16 23 3 0 0 syz-executor.3 [19117] 0 19117 18111 8737 24 4 0 0 syz-executor.3 [19286] 0 19286 18144 8748 26 4 0 1000 syz-executor.3 [19557] 0 19557 3648 42 13 3 0 0 getty [19558] 0 19558 3648 44 13 3 0 0 getty [19559] 0 19559 3648 43 13 3 0 0 getty [19560] 0 19560 3648 42 13 3 0 0 getty [19561] 0 19561 3648 43 13 3 0 0 getty [19562] 0 19562 3648 42 13 3 0 0 getty [19726] 0 19724 18210 4 30 4 0 1000 syz-executor.5 Out of memory: Kill process 18470 (syz-executor.5) score 1004 or sacrifice child Killed process 18470 (syz-executor.5) total-vm:72708kB, anon-rss:168kB, file-rss:34844kB, shmem-rss:0kB syz-executor.5 invoked oom-killer: gfp_mask=0x2400840(GFP_NOFS|__GFP_NOFAIL), nodemask=0, order=0, oom_score_adj=1000 CPU: 0 PID: 18458 Comm: syz-executor.5 Tainted: G W 4.9.189+ #21 ffff8801d613ee78 ffffffff81b65c01 ffff8801d613f1d0 ffffffff833f14b0 00000000000003e8 ffff8801d613f1e8 0000000000000000 ffff8801d613eef8 ffffffff81506abb 0000000000000000 00000000000003e8 ffffffff828284d5 Call Trace: [<000000001a84eccf>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a84eccf>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000000f03dcfc>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000355c66d0>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000004518dca5>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000004518dca5>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<0000000084631e77>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<0000000084631e77>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<0000000084631e77>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<00000000f3f0d66e>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000f3f0d66e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000f3f0d66e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000f3f0d66e>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<00000000f3f0d66e>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<00000000b5d6244c>] find_or_create_page include/linux/pagemap.h:310 [inline] [<00000000b5d6244c>] ext4_mb_load_buddy_gfp+0x90a/0x1100 fs/ext4/mballoc.c:1172 [<00000000a471764f>] ext4_free_blocks+0x827/0x23d0 fs/ext4/mballoc.c:4834 [<000000007532b020>] ext4_remove_blocks fs/ext4/extents.c:2585 [inline] [<000000007532b020>] ext4_ext_rm_leaf fs/ext4/extents.c:2741 [inline] [<000000007532b020>] ext4_ext_remove_space+0x21cd/0x3a90 fs/ext4/extents.c:2974 [<00000000f86b04ad>] ext4_ext_truncate+0x17e/0x280 fs/ext4/extents.c:4677 [<00000000e9334760>] ext4_truncate+0x526/0x1300 fs/ext4/inode.c:4243 [<000000008e3b8b18>] ext4_evict_inode+0xc50/0x1270 fs/ext4/inode.c:265 [<0000000098a5cd80>] evict+0x2e9/0x630 fs/inode.c:553 [<00000000d35b4066>] iput_final fs/inode.c:1516 [inline] [<00000000d35b4066>] iput fs/inode.c:1543 [inline] [<00000000d35b4066>] iput+0x370/0x900 fs/inode.c:1528 [<00000000e839971c>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369 [<000000007c9b3f9f>] __dentry_kill+0x333/0x580 fs/dcache.c:571 [<0000000076bed07f>] dentry_kill fs/dcache.c:612 [inline] [<0000000076bed07f>] dput.part.0+0x509/0x7c0 fs/dcache.c:829 [<00000000c72137ac>] dput+0x20/0x30 fs/dcache.c:791 [<000000002edf4b67>] path_put+0x31/0x70 fs/namei.c:516 [<0000000042822855>] free_fs_struct+0x25/0x70 fs/fs_struct.c:90 [<00000000fdcf49ba>] exit_fs+0xe7/0x120 fs/fs_struct.c:108 [<00000000d0ff0034>] do_exit+0x769/0x2aa0 kernel/exit.c:838 [<000000004aee0939>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<00000000b7cabad0>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<0000000084b08559>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<00000000f936abab>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<0000000058bd55eb>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<0000000058bd55eb>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<0000000058bd55eb>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<00000000635d580b>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:60019 inactive_anon:42 isolated_anon:0 active_file:23 inactive_file:26 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:5745 slab_unreclaimable:60900 mapped:52249 shmem:48 pagetables:1446 bounce:0 free:203 free_pcp:280 free_cma:0 Node 0 active_anon:240076kB inactive_anon:168kB active_file:92kB inactive_file:104kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208996kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:16kB min:4696kB low:7712kB high:10728kB active_anon:60kB inactive_anon:12kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:160kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB Normal free:796kB min:5580kB low:9168kB high:12756kB active_anon:240016kB inactive_anon:156kB active_file:92kB inactive_file:104kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:22980kB slab_unreclaimable:243440kB kernel_stack:5024kB pagetables:5784kB bounce:0kB free_pcp:1000kB local_pcp:636kB 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 5380 180 16 3 0 -1000 udevd [ 579] 0 579 5379 174 15 3 0 -1000 udevd [ 580] 0 580 5383 174 15 3 0 -1000 udevd [ 1762] 0 1762 2492 573 8 3 0 0 dhclient [ 1892] 0 1892 14231 108 23 4 0 0 rsyslogd [ 1948] 0 1948 4724 50 15 3 0 0 cron [ 1966] 0 1966 3734 44 11 3 0 0 mcstransd [ 1968] 0 1968 12926 1231 27 3 0 0 restorecond [ 1994] 0 1994 12489 152 29 3 0 -1000 sshd [ 2024] 0 2024 3648 39 13 3 0 0 getty [ 2040] 0 2040 17820 196 41 3 0 0 sshd [ 2042] 0 2042 113761 55433 184 6 0 0 syz-fuzzer [ 2089] 0 2089 18112 17 23 3 0 0 syz-executor.5 [ 2090] 0 2090 18112 15 23 3 0 0 syz-executor.0 [ 2091] 0 2091 18112 15 22 3 0 0 syz-executor.1 [ 2092] 0 2092 18112 16 23 3 0 0 syz-executor.4 [ 2093] 0 2093 18112 16 23 3 0 0 syz-executor.2 [ 2095] 0 2095 18111 8736 24 4 0 0 syz-executor.0 [ 2096] 0 2096 18111 8738 24 4 0 0 syz-executor.5 [ 2098] 0 2098 18111 8736 24 4 0 0 syz-executor.4 [ 2109] 0 2109 18111 8736 23 4 0 0 syz-executor.1 [ 2110] 0 2110 18111 8737 24 4 0 0 syz-executor.2 [ 3000] 0 3000 5364 170 15 3 0 -1000 udevd [ 3029] 0 3029 5364 170 15 3 0 -1000 udevd [ 3091] 0 3091 18144 8746 26 4 0 1000 syz-executor.4 [ 3283] 0 3283 18144 8713 24 3 0 1000 syz-executor.2 [ 3973] 0 3973 5364 170 15 3 0 -1000 udevd [ 6891] 0 6891 5379 182 15 3 0 -1000 udevd [ 6918] 0 6918 18144 8716 24 3 0 1000 syz-executor.1 [15943] 0 15943 18144 8751 26 4 0 1000 syz-executor.5 [15956] 0 15956 18144 8751 26 4 0 1000 syz-executor.5 [16384] 0 16384 18144 8751 26 4 0 1000 syz-executor.5 [16385] 0 16385 18177 8749 24 4 0 1000 syz-executor.1 [16394] 0 16394 18144 8751 26 4 0 1000 syz-executor.5 [16409] 0 16409 18144 8751 26 4 0 1000 syz-executor.5 [16419] 0 16419 18144 8751 26 4 0 1000 syz-executor.5 [16433] 0 16433 18144 8751 26 4 0 1000 syz-executor.5 [16450] 0 16450 18144 8751 26 4 0 1000 syz-executor.5 [16495] 0 16495 18144 8707 24 3 0 1000 syz-executor.5 [16506] 0 16506 18144 8707 24 3 0 1000 syz-executor.5 [16534] 0 16534 18144 8707 24 3 0 1000 syz-executor.5 [16551] 0 16551 18144 8751 26 4 0 1000 syz-executor.5 [16568] 0 16568 18144 8751 26 4 0 1000 syz-executor.5 [16583] 0 16583 18144 8751 26 4 0 1000 syz-executor.5 [18478] 0 18478 18144 8751 26 4 0 1000 syz-executor.5 [18482] 0 18482 18144 8751 26 4 0 1000 syz-executor.5 [18505] 0 18505 18144 8751 26 4 0 1000 syz-executor.5 [18523] 0 18523 18144 8751 26 4 0 1000 syz-executor.5 [19116] 0 19116 18112 16 23 3 0 0 syz-executor.3 [19117] 0 19117 18111 8737 24 4 0 0 syz-executor.3 [19286] 0 19286 18144 8748 26 4 0 1000 syz-executor.3 [19557] 0 19557 3648 42 13 3 0 0 getty [19558] 0 19558 3648 44 13 3 0 0 getty [19559] 0 19559 3648 43 13 3 0 0 getty [19560] 0 19560 3648 42 13 3 0 0 getty [19561] 0 19561 3648 43 13 3 0 0 getty [19562] 0 19562 3648 42 13 3 0 0 getty [19726] 0 19724 18210 4 30 4 0 1000 syz-executor.5 Out of memory: Kill process 15943 (syz-executor.5) score 1004 or sacrifice child Killed process 15943 (syz-executor.5) total-vm:72576kB, anon-rss:160kB, file-rss:34844kB, shmem-rss:0kB syz-executor.5 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 19775 Comm: syz-executor.5 Tainted: G W 4.9.189+ #21 ffff88015674f580 ffffffff81b65c01 ffff88015674f8d8 ffffffff833f14b0 00000000000003e8 ffff88015674f8f0 0000000000000000 ffff88015674f600 ffffffff81506abb 0000000000000000 00000000000003e8 ffffffff828284d5 Call Trace: [<000000001a84eccf>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a84eccf>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000000f03dcfc>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000355c66d0>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000004518dca5>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000004518dca5>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<00000000723ca619>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<00000000723ca619>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<00000000723ca619>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<0000000068f87cac>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000068f87cac>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000068f87cac>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000068f87cac>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<0000000068f87cac>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<00000000deb439a8>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000deb439a8>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000deb439a8>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000ce893c72>] xt_alloc_entry_offsets+0x44/0x50 net/netfilter/x_tables.c:758 [<000000002b26c779>] translate_table+0x215/0x1650 net/ipv4/netfilter/ip_tables.c:705 [<0000000046a38402>] do_replace net/ipv4/netfilter/ip_tables.c:1157 [inline] [<0000000046a38402>] do_ipt_set_ctl+0x2d4/0x470 net/ipv4/netfilter/ip_tables.c:1693 [<000000000b14fabc>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<000000000b14fabc>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<000000008afa284c>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<000000008afa284c>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000069a1cc12>] udp_setsockopt+0x4e/0x90 net/ipv4/udp.c:2114 [<00000000de5addc9>] ipv6_setsockopt+0xa4/0x140 net/ipv6/ipv6_sockglue.c:912 [<000000000922d6ed>] tcp_setsockopt net/ipv4/tcp.c:2759 [inline] [<000000000922d6ed>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2753 [<000000003b9bcd70>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<0000000095f8ed44>] SYSC_setsockopt net/socket.c:1786 [inline] [<0000000095f8ed44>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<00000000f9968d78>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000635d580b>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:59994 inactive_anon:42 isolated_anon:0 active_file:23 inactive_file:26 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:5745 slab_unreclaimable:60900 mapped:52249 shmem:48 pagetables:1446 bounce:0 free:203 free_pcp:337 free_cma:0 Node 0 active_anon:239976kB inactive_anon:168kB active_file:92kB inactive_file:104kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208996kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:16kB min:4696kB low:7712kB high:10728kB active_anon:60kB inactive_anon:12kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:160kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB Normal free:796kB min:5580kB low:9168kB high:12756kB active_anon:239916kB inactive_anon:156kB active_file:92kB inactive_file:104kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:22980kB slab_unreclaimable:243440kB kernel_stack:5024kB pagetables:5784kB bounce:0kB free_pcp:1228kB local_pcp:596kB 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 5380 180 16 3 0 -1000 udevd [ 579] 0 579 5379 174 15 3 0 -1000 udevd [ 580] 0 580 5383 174 15 3 0 -1000 udevd [ 1762] 0 1762 2492 573 8 3 0 0 dhclient [ 1892] 0 1892 14231 108 23 4 0 0 rsyslogd [ 1948] 0 1948 4724 50 15 3 0 0 cron [ 1966] 0 1966 3734 44 11 3 0 0 mcstransd [ 1968] 0 1968 12926 1231 27 3 0 0 restorecond [ 1994] 0 1994 12489 152 29 3 0 -1000 sshd [ 2024] 0 2024 3648 39 13 3 0 0 getty [ 2040] 0 2040 17820 196 41 3 0 0 sshd [ 2042] 0 2042 113761 55433 184 6 0 0 syz-fuzzer [ 2089] 0 2089 18112 17 23 3 0 0 syz-executor.5 [ 2090] 0 2090 18112 15 23 3 0 0 syz-executor.0 [ 2091] 0 2091 18112 15 22 3 0 0 syz-executor.1 [ 2092] 0 2092 18112 16 23 3 0 0 syz-executor.4 [ 2093] 0 2093 18112 16 23 3 0 0 syz-executor.2 [ 2095] 0 2095 18111 8736 24 4 0 0 syz-executor.0 [ 2096] 0 2096 18111 8738 24 4 0 0 syz-executor.5 [ 2098] 0 2098 18111 8736 24 4 0 0 syz-executor.4 [ 2109] 0 2109 18111 8736 23 4 0 0 syz-executor.1 [ 2110] 0 2110 18111 8737 24 4 0 0 syz-executor.2 [ 3000] 0 3000 5364 170 15 3 0 -1000 udevd [ 3029] 0 3029 5364 170 15 3 0 -1000 udevd [ 3091] 0 3091 18144 8746 26 4 0 1000 syz-executor.4 [ 3283] 0 3283 18144 8713 24 3 0 1000 syz-executor.2 [ 3973] 0 3973 5364 170 15 3 0 -1000 udevd [ 6891] 0 6891 5379 182 15 3 0 -1000 udevd [ 6918] 0 6918 18144 8716 24 3 0 1000 syz-executor.1 [15956] 0 15956 18144 8751 26 4 0 1000 syz-executor.5 [16384] 0 16384 18144 8751 26 4 0 1000 syz-executor.5 [16385] 0 16385 18177 8749 24 4 0 1000 syz-executor.1 [16394] 0 16394 18144 8751 26 4 0 1000 syz-executor.5 [16409] 0 16409 18144 8751 26 4 0 1000 syz-executor.5 [16419] 0 16419 18144 8751 26 4 0 1000 syz-executor.5 [16433] 0 16433 18144 8751 26 4 0 1000 syz-executor.5 [16450] 0 16450 18144 8751 26 4 0 1000 syz-executor.5 [16495] 0 16495 18144 8707 24 3 0 1000 syz-executor.5 [16506] 0 16506 18144 8707 24 3 0 1000 syz-executor.5 [16534] 0 16534 18144 8707 24 3 0 1000 syz-executor.5 [16551] 0 16551 18144 8751 26 4 0 1000 syz-executor.5 [16568] 0 16568 18144 8751 26 4 0 1000 syz-executor.5 [16583] 0 16583 18144 8751 26 4 0 1000 syz-executor.5 [18478] 0 18478 18144 8751 26 4 0 1000 syz-executor.5 [18482] 0 18482 18144 8751 26 4 0 1000 syz-executor.5 [18505] 0 18505 18144 8751 26 4 0 1000 syz-executor.5 [18523] 0 18523 18144 8751 26 4 0 1000 syz-executor.5 [19116] 0 19116 18112 16 23 3 0 0 syz-executor.3 [19117] 0 19117 18111 8737 24 4 0 0 syz-executor.3 [19286] 0 19286 18144 8748 26 4 0 1000 syz-executor.3 [19557] 0 19557 3648 42 13 3 0 0 getty [19558] 0 19558 3648 44 13 3 0 0 getty [19559] 0 19559 3648 43 13 3 0 0 getty [19560] 0 19560 3648 42 13 3 0 0 getty [19561] 0 19561 3648 43 13 3 0 0 getty [19562] 0 19562 3648 42 13 3 0 0 getty [19726] 0 19724 18210 4 30 4 0 1000 syz-executor.5 Out of memory: Kill process 15956 (syz-executor.5) score 1004 or sacrifice child Killed process 15956 (syz-executor.5) total-vm:72576kB, anon-rss:160kB, file-rss:34844kB, shmem-rss:0kB syz-executor.5 invoked oom-killer: gfp_mask=0x2400840(GFP_NOFS|__GFP_NOFAIL), nodemask=0, order=0, oom_score_adj=1000 CPU: 0 PID: 18449 Comm: syz-executor.5 Tainted: G W 4.9.189+ #21 ffff8801c95bee78 ffffffff81b65c01 ffff8801c95bf1d0 ffffffff833f14b0 00000000000003e8 ffff8801c95bf1e8 0000000000000000 ffff8801c95beef8 ffffffff81506abb 0000000000000000 00000000000003e8 ffffffff828284d5 Call Trace: [<000000001a84eccf>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a84eccf>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000000f03dcfc>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000355c66d0>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000004518dca5>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000004518dca5>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<0000000084631e77>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<0000000084631e77>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<0000000084631e77>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<00000000f3f0d66e>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000f3f0d66e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000f3f0d66e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000f3f0d66e>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<00000000f3f0d66e>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<00000000b5d6244c>] find_or_create_page include/linux/pagemap.h:310 [inline] [<00000000b5d6244c>] ext4_mb_load_buddy_gfp+0x90a/0x1100 fs/ext4/mballoc.c:1172 [<00000000a471764f>] ext4_free_blocks+0x827/0x23d0 fs/ext4/mballoc.c:4834 [<000000007532b020>] ext4_remove_blocks fs/ext4/extents.c:2585 [inline] [<000000007532b020>] ext4_ext_rm_leaf fs/ext4/extents.c:2741 [inline] [<000000007532b020>] ext4_ext_remove_space+0x21cd/0x3a90 fs/ext4/extents.c:2974 [<00000000f86b04ad>] ext4_ext_truncate+0x17e/0x280 fs/ext4/extents.c:4677 [<00000000e9334760>] ext4_truncate+0x526/0x1300 fs/ext4/inode.c:4243 [<000000008e3b8b18>] ext4_evict_inode+0xc50/0x1270 fs/ext4/inode.c:265 [<0000000098a5cd80>] evict+0x2e9/0x630 fs/inode.c:553 [<00000000d35b4066>] iput_final fs/inode.c:1516 [inline] [<00000000d35b4066>] iput fs/inode.c:1543 [inline] [<00000000d35b4066>] iput+0x370/0x900 fs/inode.c:1528 [<00000000e839971c>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369 [<000000007c9b3f9f>] __dentry_kill+0x333/0x580 fs/dcache.c:571 [<0000000076bed07f>] dentry_kill fs/dcache.c:612 [inline] [<0000000076bed07f>] dput.part.0+0x509/0x7c0 fs/dcache.c:829 [<00000000c72137ac>] dput+0x20/0x30 fs/dcache.c:791 [<000000002edf4b67>] path_put+0x31/0x70 fs/namei.c:516 [<0000000042822855>] free_fs_struct+0x25/0x70 fs/fs_struct.c:90 [<00000000fdcf49ba>] exit_fs+0xe7/0x120 fs/fs_struct.c:108 [<00000000d0ff0034>] do_exit+0x769/0x2aa0 kernel/exit.c:838 [<000000004aee0939>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<00000000b7cabad0>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<0000000084b08559>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<00000000f936abab>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<0000000058bd55eb>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<0000000058bd55eb>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<0000000058bd55eb>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<00000000635d580b>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:59969 inactive_anon:42 isolated_anon:0 active_file:23 inactive_file:26 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:5745 slab_unreclaimable:60900 mapped:52249 shmem:48 pagetables:1409 bounce:0 free:228 free_pcp:364 free_cma:0 Node 0 active_anon:239876kB inactive_anon:168kB active_file:92kB inactive_file:104kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208996kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:16kB min:4696kB low:7712kB high:10728kB active_anon:60kB inactive_anon:12kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:160kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB Normal free:896kB min:5580kB low:9168kB high:12756kB active_anon:239816kB inactive_anon:156kB active_file:92kB inactive_file:104kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:22980kB slab_unreclaimable:243440kB kernel_stack:5024kB pagetables:5636kB bounce:0kB free_pcp:1336kB local_pcp:632kB 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 5380 180 16 3 0 -1000 udevd [ 579] 0 579 5379 174 15 3 0 -1000 udevd [ 580] 0 580 5383 174 15 3 0 -1000 udevd [ 1762] 0 1762 2492 573 8 3 0 0 dhclient [ 1892] 0 1892 14231 108 23 4 0 0 rsyslogd [ 1948] 0 1948 4724 50 15 3 0 0 cron [ 1966] 0 1966 3734 44 11 3 0 0 mcstransd [ 1968] 0 1968 12926 1231 27 3 0 0 restorecond [ 1994] 0 1994 12489 152 29 3 0 -1000 sshd [ 2024] 0 2024 3648 39 13 3 0 0 getty [ 2040] 0 2040 17820 196 41 3 0 0 sshd [ 2042] 0 2042 113761 55433 184 6 0 0 syz-fuzzer [ 2089] 0 2089 18112 17 23 3 0 0 syz-executor.5 [ 2090] 0 2090 18112 15 23 3 0 0 syz-executor.0 [ 2091] 0 2091 18112 15 22 3 0 0 syz-executor.1 [ 2092] 0 2092 18112 16 23 3 0 0 syz-executor.4 [ 2093] 0 2093 18112 16 23 3 0 0 syz-executor.2 [ 2095] 0 2095 18111 8736 24 4 0 0 syz-executor.0 [ 2096] 0 2096 18111 8738 24 4 0 0 syz-executor.5 [ 2098] 0 2098 18111 8736 24 4 0 0 syz-executor.4 [ 2109] 0 2109 18111 8736 23 4 0 0 syz-executor.1 [ 2110] 0 2110 18111 8737 24 4 0 0 syz-executor.2 [ 3000] 0 3000 5364 170 15 3 0 -1000 udevd [ 3029] 0 3029 5364 170 15 3 0 -1000 udevd [ 3091] 0 3091 18144 8746 26 4 0 1000 syz-executor.4 [ 3283] 0 3283 18144 8713 24 3 0 1000 syz-executor.2 [ 3973] 0 3973 5364 170 15 3 0 -1000 udevd [ 6891] 0 6891 5379 182 15 3 0 -1000 udevd [ 6918] 0 6918 18144 8716 24 3 0 1000 syz-executor.1 [16384] 0 16384 18144 8751 26 4 0 1000 syz-executor.5 [16385] 0 16385 18177 8749 24 4 0 1000 syz-executor.1 [16394] 0 16394 18144 8751 26 4 0 1000 syz-executor.5 [16409] 0 16409 18144 8751 26 4 0 1000 syz-executor.5 [16419] 0 16419 18144 8751 26 4 0 1000 syz-executor.5 [16433] 0 16433 18144 8751 26 4 0 1000 syz-executor.5 [16450] 0 16450 18144 8751 26 4 0 1000 syz-executor.5 [16495] 0 16495 18144 8707 24 3 0 1000 syz-executor.5 [16506] 0 16506 18144 8707 24 3 0 1000 syz-executor.5 [16534] 0 16534 18144 8707 24 3 0 1000 syz-executor.5 [16551] 0 16551 18144 8751 26 4 0 1000 syz-executor.5 [16568] 0 16568 18144 8751 26 4 0 1000 syz-executor.5 [16583] 0 16583 18144 8751 26 4 0 1000 syz-executor.5 [18478] 0 18478 18144 8751 26 4 0 1000 syz-executor.5 [18482] 0 18482 18144 8751 26 4 0 1000 syz-executor.5 [18505] 0 18505 18144 8751 26 4 0 1000 syz-executor.5 [18523] 0 18523 18144 8751 26 4 0 1000 syz-executor.5 [19116] 0 19116 18112 16 23 3 0 0 syz-executor.3 [19117] 0 19117 18111 8737 24 4 0 0 syz-executor.3 [19286] 0 19286 18144 8748 26 4 0 1000 syz-executor.3 [19557] 0 19557 3648 42 13 3 0 0 getty [19558] 0 19558 3648 44 13 3 0 0 getty [19559] 0 19559 3648 43 13 3 0 0 getty [19560] 0 19560 3648 42 13 3 0 0 getty [19561] 0 19561 3648 43 13 3 0 0 getty [19562] 0 19562 3648 42 13 3 0 0 getty [19726] 0 19724 18210 4 30 4 0 1000 syz-executor.5 Out of memory: Kill process 16384 (syz-executor.5) score 1004 or sacrifice child Killed process 16384 (syz-executor.5) total-vm:72576kB, anon-rss:160kB, file-rss:34844kB, shmem-rss:0kB syz-executor.5 invoked oom-killer: gfp_mask=0x2400840(GFP_NOFS|__GFP_NOFAIL), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 15956 Comm: syz-executor.5 Tainted: G W 4.9.189+ #21 ffff8801cf2eee78 ffffffff81b65c01 ffff8801cf2ef1d0 ffffffff833f14b0 00000000000003e8 ffff8801cf2ef1e8 0000000000000000 ffff8801cf2eeef8 ffffffff81506abb 0000000000000000 00000000000003e8 ffffffff828284d5 Call Trace: [<000000001a84eccf>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a84eccf>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000000f03dcfc>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000355c66d0>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000004518dca5>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000004518dca5>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<0000000084631e77>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<0000000084631e77>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<0000000084631e77>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<00000000f3f0d66e>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000f3f0d66e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000f3f0d66e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000f3f0d66e>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<00000000f3f0d66e>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<00000000ea4801b7>] find_or_create_page include/linux/pagemap.h:310 [inline] [<00000000ea4801b7>] ext4_mb_load_buddy_gfp+0x659/0x1100 fs/ext4/mballoc.c:1208 [<00000000a471764f>] ext4_free_blocks+0x827/0x23d0 fs/ext4/mballoc.c:4834 [<000000007532b020>] ext4_remove_blocks fs/ext4/extents.c:2585 [inline] [<000000007532b020>] ext4_ext_rm_leaf fs/ext4/extents.c:2741 [inline] [<000000007532b020>] ext4_ext_remove_space+0x21cd/0x3a90 fs/ext4/extents.c:2974 [<00000000f86b04ad>] ext4_ext_truncate+0x17e/0x280 fs/ext4/extents.c:4677 [<00000000e9334760>] ext4_truncate+0x526/0x1300 fs/ext4/inode.c:4243 [<000000008e3b8b18>] ext4_evict_inode+0xc50/0x1270 fs/ext4/inode.c:265 [<0000000098a5cd80>] evict+0x2e9/0x630 fs/inode.c:553 [<00000000d35b4066>] iput_final fs/inode.c:1516 [inline] [<00000000d35b4066>] iput fs/inode.c:1543 [inline] [<00000000d35b4066>] iput+0x370/0x900 fs/inode.c:1528 [<00000000e839971c>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369 [<000000007c9b3f9f>] __dentry_kill+0x333/0x580 fs/dcache.c:571 [<0000000076bed07f>] dentry_kill fs/dcache.c:612 [inline] [<0000000076bed07f>] dput.part.0+0x509/0x7c0 fs/dcache.c:829 [<00000000c72137ac>] dput+0x20/0x30 fs/dcache.c:791 [<000000002edf4b67>] path_put+0x31/0x70 fs/namei.c:516 [<0000000042822855>] free_fs_struct+0x25/0x70 fs/fs_struct.c:90 [<00000000fdcf49ba>] exit_fs+0xe7/0x120 fs/fs_struct.c:108 [<00000000d0ff0034>] do_exit+0x769/0x2aa0 kernel/exit.c:838 [<000000004aee0939>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<00000000b7cabad0>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<0000000084b08559>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<00000000f936abab>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<0000000058bd55eb>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<0000000058bd55eb>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<0000000058bd55eb>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<00000000635d580b>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: