lowmemorykiller: Killing 'syz-executor.4' (3502) (tgid 3502), adj 1000, to free 39532kB on behalf of 'syz-executor.0' (5611) because cache 61860kB is below limit 65536kB for oom_score_adj 12 Free memory is -7920kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:905 in_atomic(): 0, irqs_disabled(): 0, pid: 5611, name: syz-executor.0 2 locks held by syz-executor.0/5611: #0: (shrinker_rwsem){++++..}, at: [<000000003e09a07f>] shrink_slab.part.0+0xb2/0xa20 mm/vmscan.c:472 #1: (rcu_read_lock){......}, at: [<000000000c2110bf>] lowmem_scan+0x242/0xb50 drivers/staging/android/lowmemorykiller.c:272 Preemption disabled at: [<0000000037b5ab82>] spin_lock include/linux/spinlock.h:302 [inline] [<0000000037b5ab82>] task_lock include/linux/sched.h:3217 [inline] [<0000000037b5ab82>] get_task_mm+0x20/0xc0 kernel/fork.c:1012 CPU: 0 PID: 5611 Comm: syz-executor.0 Not tainted 4.9.189+ #22 ffff8801c81df408 ffffffff81b65c01 0000000000000000 0000000000000001 ffff8801d1a8af80 ffffffff810d1010 ffff8801d1a8af80 ffff8801c81df440 ffffffff814018f3 ffff8801d1a8af80 ffffffff82a39fc0 0000000000000389 Call Trace: [<0000000003319744>] __dump_stack lib/dump_stack.c:15 [inline] [<0000000003319744>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<0000000080845bbb>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000fdf0014a>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<00000000d9ae8e91>] mmput+0x28/0x370 kernel/fork.c:905 [<00000000c4dd8dd1>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<000000008298ef19>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<00000000a2a71fe1>] do_shrink_slab mm/vmscan.c:399 [inline] [<00000000a2a71fe1>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<00000000b46134d2>] shrink_slab mm/vmscan.c:466 [inline] [<00000000b46134d2>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000fcf9ac7d>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000fcf9ac7d>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000fcf9ac7d>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<00000000e0c2e44d>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<00000000e0c2e44d>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<00000000e0c2e44d>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<00000000e0c2e44d>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<00000000b9143c82>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000b9143c82>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000b9143c82>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000b9143c82>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<00000000b9143c82>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<00000000602cdaab>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000602cdaab>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000602cdaab>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000c6464259>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000005607c005>] do_replace net/ipv6/netfilter/ip6_tables.c:1175 [inline] [<000000005607c005>] do_ip6t_set_ctl+0x231/0x480 net/ipv6/netfilter/ip6_tables.c:1712 [<00000000f171dfcd>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000f171dfcd>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<0000000003f7c5cc>] ipv6_setsockopt net/ipv6/ipv6_sockglue.c:922 [inline] [<0000000003f7c5cc>] ipv6_setsockopt+0x10b/0x140 net/ipv6/ipv6_sockglue.c:906 [<00000000c3e2788f>] tcp_setsockopt net/ipv4/tcp.c:2759 [inline] [<00000000c3e2788f>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2753 [<0000000064f10db7>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<00000000c5709449>] SYSC_setsockopt net/socket.c:1786 [inline] [<00000000c5709449>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<00000000840764bc>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000061678c29>] 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.0/5611 [HC0[0]:SC0[0]:HE1:SE1] takes: (&mm->mmap_sem){+++++?}, at: [<0000000075ff5605>] 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: 2035227 hardirqs last enabled at (2035227): [<00000000f791f2be>] dump_stack+0x100/0x120 lib/dump_stack.c:56 hardirqs last disabled at (2035226): [<000000005b3a33aa>] dump_stack+0x2c/0x120 lib/dump_stack.c:38 softirqs last enabled at (2034886): [<000000005e02b619>] spin_unlock_bh include/linux/spinlock.h:352 [inline] softirqs last enabled at (2034886): [<000000005e02b619>] wb_queue_work+0x1ed/0x450 fs/fs-writeback.c:203 softirqs last disabled at (2034882): [<00000000108075bf>] spin_lock_bh include/linux/spinlock.h:307 [inline] softirqs last disabled at (2034882): [<00000000108075bf>] wb_queue_work+0x90/0x450 fs/fs-writeback.c:195 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.0/5611: #0: (shrinker_rwsem){++++..}, at: [<000000003e09a07f>] shrink_slab.part.0+0xb2/0xa20 mm/vmscan.c:472 #1: (rcu_read_lock){......}, at: [<000000000c2110bf>] lowmem_scan+0x242/0xb50 drivers/staging/android/lowmemorykiller.c:272 #2: (lmk_event_lock){+.+.-.}, at: [<00000000b6c1ca22>] spin_lock include/linux/spinlock.h:302 [inline] #2: (lmk_event_lock){+.+.-.}, at: [<00000000b6c1ca22>] handle_lmk_event+0xfb/0x8a0 drivers/staging/android/lowmemorykiller.c:114 stack backtrace: CPU: 0 PID: 5611 Comm: syz-executor.0 Tainted: G W 4.9.189+ #22 ffff8801c81df150 ffffffff81b65c01 00000000000000f0 ffff8801d1a8af80 ffffffff83caf950 ffff8801d1a8b8c8 ffffffff84250fc0 ffff8801c81df1c8 ffffffff81408330 0000000000000000 ffffffff00000001 0000000000000001 Call Trace: [<0000000003319744>] __dump_stack lib/dump_stack.c:15 [inline] [<0000000003319744>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000004809acb0>] print_usage_bug kernel/locking/lockdep.c:2387 [inline] [<000000004809acb0>] print_usage_bug.cold+0x452/0x5a2 kernel/locking/lockdep.c:2354 [<000000001c331bce>] valid_state kernel/locking/lockdep.c:2400 [inline] [<000000001c331bce>] mark_lock_irq kernel/locking/lockdep.c:2602 [inline] [<000000001c331bce>] mark_lock+0x6c7/0x12e0 kernel/locking/lockdep.c:3065 [<0000000043ec847b>] mark_irqflags kernel/locking/lockdep.c:2958 [inline] [<0000000043ec847b>] __lock_acquire+0x5be/0x4390 kernel/locking/lockdep.c:3302 [<00000000a81bba17>] lock_acquire+0x133/0x3d0 kernel/locking/lockdep.c:3756 [<00000000af6f569c>] down_read+0x44/0xb0 kernel/locking/rwsem.c:22 [<0000000075ff5605>] get_cmdline+0xa3/0x2d0 mm/util.c:641 [<000000007804f5e5>] handle_lmk_event+0x13c/0x8a0 drivers/staging/android/lowmemorykiller.c:128 [<000000008298ef19>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<00000000a2a71fe1>] do_shrink_slab mm/vmscan.c:399 [inline] [<00000000a2a71fe1>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<00000000b46134d2>] shrink_slab mm/vmscan.c:466 [inline] [<00000000b46134d2>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000fcf9ac7d>] shrink_zones mm/vmscan.c:2751 [inline] [<00000000fcf9ac7d>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<00000000fcf9ac7d>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<00000000e0c2e44d>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<00000000e0c2e44d>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<00000000e0c2e44d>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<00000000e0c2e44d>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<00000000b9143c82>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000b9143c82>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000b9143c82>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000b9143c82>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<00000000b9143c82>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<00000000602cdaab>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000602cdaab>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000602cdaab>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000c6464259>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000005607c005>] do_replace net/ipv6/netfilter/ip6_tables.c:1175 [inline] [<000000005607c005>] do_ip6t_set_ctl+0x231/0x480 net/ipv6/netfilter/ip6_tables.c:1712 [<00000000f171dfcd>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000f171dfcd>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<0000000003f7c5cc>] ipv6_setsockopt net/ipv6/ipv6_sockglue.c:922 [inline] [<0000000003f7c5cc>] ipv6_setsockopt+0x10b/0x140 net/ipv6/ipv6_sockglue.c:906 [<00000000c3e2788f>] tcp_setsockopt net/ipv4/tcp.c:2759 [inline] [<00000000c3e2788f>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2753 [<0000000064f10db7>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<00000000c5709449>] SYSC_setsockopt net/socket.c:1786 [inline] [<00000000c5709449>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<00000000840764bc>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000061678c29>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb lowmemorykiller: Killing 'syz-executor.0' (3556) (tgid 3556), adj 1000, to free 39408kB on behalf of 'syz-executor.0' (5611) because cache 61260kB is below limit 65536kB for oom_score_adj 12 Free memory is -13120kB above reserved lowmemorykiller: Killing 'syz-executor.4' (4254) (tgid 4254), adj 1000, to free 35972kB on behalf of 'syz-executor.0' (5611) because cache 57960kB is below limit 65536kB for oom_score_adj 12 Free memory is -6920kB above reserved lowmemorykiller: Killing 'syz-executor.4' (4264) (tgid 4264), adj 1000, to free 35972kB on behalf of 'syz-executor.0' (5611) because cache 57960kB is below limit 65536kB for oom_score_adj 12 Free memory is -6020kB above reserved lowmemorykiller: Killing 'syz-executor.0' (5611) (tgid 5607), adj 1000, to free 35972kB on behalf of 'syz-executor.0' (5611) because cache 57960kB is below limit 65536kB for oom_score_adj 12 Free memory is -1892kB above reserved oom_reaper: reaped process 5611 (syz-executor.0), now anon-rss:0kB, file-rss:24kB, shmem-rss:0kB syz-executor.0: vmalloc: allocation failure, allocated 4227407872 of 4294795264 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 5611 Comm: syz-executor.0 Tainted: G W 4.9.189+ #22 ffff8801c81dfa08 ffffffff81b65c01 1ffff1003903bf43 dffffc0000000000 ffffffff82aab240 0000000000000000 0000000000400000 ffff8801c81dfb30 ffffffff81507d73 0000000041b58ab3 ffffffff82e3b1e8 ffffffff81431920 Call Trace: [<0000000003319744>] __dump_stack lib/dump_stack.c:15 [inline] [<0000000003319744>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<0000000021021f9e>] warn_alloc.cold+0x76/0x93 mm/page_alloc.c:3069 [<000000005b86f8f6>] __vmalloc_area_node mm/vmalloc.c:1665 [inline] [<000000005b86f8f6>] __vmalloc_node_range+0x3ff/0x610 mm/vmalloc.c:1706 [<00000000602cdaab>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000602cdaab>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000602cdaab>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000c6464259>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000005607c005>] do_replace net/ipv6/netfilter/ip6_tables.c:1175 [inline] [<000000005607c005>] do_ip6t_set_ctl+0x231/0x480 net/ipv6/netfilter/ip6_tables.c:1712 [<00000000f171dfcd>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000f171dfcd>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<0000000003f7c5cc>] ipv6_setsockopt net/ipv6/ipv6_sockglue.c:922 [inline] [<0000000003f7c5cc>] ipv6_setsockopt+0x10b/0x140 net/ipv6/ipv6_sockglue.c:906 [<00000000c3e2788f>] tcp_setsockopt net/ipv4/tcp.c:2759 [inline] [<00000000c3e2788f>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2753 [<0000000064f10db7>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<00000000c5709449>] SYSC_setsockopt net/socket.c:1786 [inline] [<00000000c5709449>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<00000000840764bc>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000061678c29>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:81205 inactive_anon:44 isolated_anon:0 active_file:22 inactive_file:44 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:5789 slab_unreclaimable:59592 mapped:52255 shmem:52 pagetables:1505 bounce:0 free:116 free_pcp:65 free_cma:0 Node 0 active_anon:324820kB inactive_anon:176kB active_file:88kB inactive_file:176kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:209020kB dirty:0kB writeback:0kB shmem:208kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:92kB 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:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:372kB min:5580kB low:9168kB high:12756kB active_anon:324820kB inactive_anon:176kB active_file:88kB inactive_file:176kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:23156kB slab_unreclaimable:238368kB kernel_stack:5056kB pagetables:6020kB bounce:0kB free_pcp:260kB 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 syz-executor.0 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 5619 Comm: syz-executor.0 Tainted: G W 4.9.189+ #22 ffff8801cab57730 ffffffff81b65c01 ffff8801cab57a88 ffffffff833f14b0 00000000000003e8 ffff8801cab57aa0 0000000000000000 ffff8801cab577b0 ffffffff81506abb 0000000000000000 00000000000003e8 ffffffff82828535 Call Trace: [<0000000003319744>] __dump_stack lib/dump_stack.c:15 [inline] [<0000000003319744>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000e76ac1a3>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000ef86a6c0>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000005b3ca2bc>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000005b3ca2bc>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<000000004e1d0d48>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<000000004e1d0d48>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<000000004e1d0d48>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<00000000b9143c82>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000b9143c82>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000b9143c82>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000b9143c82>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<00000000b9143c82>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<00000000602cdaab>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000602cdaab>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000602cdaab>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000c6464259>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000005607c005>] do_replace net/ipv6/netfilter/ip6_tables.c:1175 [inline] [<000000005607c005>] do_ip6t_set_ctl+0x231/0x480 net/ipv6/netfilter/ip6_tables.c:1712 [<00000000f171dfcd>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000f171dfcd>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<0000000003f7c5cc>] ipv6_setsockopt net/ipv6/ipv6_sockglue.c:922 [inline] [<0000000003f7c5cc>] ipv6_setsockopt+0x10b/0x140 net/ipv6/ipv6_sockglue.c:906 [<00000000c3e2788f>] tcp_setsockopt net/ipv4/tcp.c:2759 [inline] [<00000000c3e2788f>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2753 [<0000000064f10db7>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<00000000c5709449>] SYSC_setsockopt net/socket.c:1786 [inline] [<00000000c5709449>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<00000000840764bc>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000061678c29>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:81205 inactive_anon:44 isolated_anon:0 active_file:22 inactive_file:44 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:5789 slab_unreclaimable:59592 mapped:52255 shmem:52 pagetables:1505 bounce:0 free:116 free_pcp:65 free_cma:0 Node 0 active_anon:324820kB inactive_anon:176kB active_file:88kB inactive_file:176kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:209020kB dirty:0kB writeback:0kB shmem:208kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:92kB 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:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:372kB min:5580kB low:9168kB high:12756kB active_anon:324820kB inactive_anon:176kB active_file:88kB inactive_file:176kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:23156kB slab_unreclaimable:238368kB kernel_stack:5056kB pagetables:6020kB bounce:0kB free_pcp:260kB local_pcp:260kB 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 5384 176 17 3 0 -1000 udevd [ 584] 0 584 5383 181 16 3 0 -1000 udevd [ 588] 0 588 5812 594 16 3 0 -1000 udevd [ 1767] 0 1767 2492 574 8 3 0 0 dhclient [ 1908] 0 1908 14264 109 23 3 0 0 rsyslogd [ 1963] 0 1963 4724 51 15 3 0 0 cron [ 1981] 0 1981 3734 44 11 4 0 0 mcstransd [ 1983] 0 1983 12926 1231 27 3 0 0 restorecond [ 2009] 0 2009 12489 153 28 3 0 -1000 sshd [ 2039] 0 2039 3648 40 13 3 0 0 getty [ 2055] 0 2055 17820 196 39 3 0 0 sshd [ 2057] 0 2057 109922 76354 178 5 0 0 syz-fuzzer [ 2109] 0 2109 18112 15 22 3 0 0 syz-executor.0 [ 2110] 0 2110 18112 17 23 3 0 0 syz-executor.5 [ 2111] 0 2111 18112 15 23 3 0 0 syz-executor.1 [ 2112] 0 2112 18112 15 23 3 0 0 syz-executor.3 [ 2113] 0 2113 18112 17 23 3 0 0 syz-executor.4 [ 2114] 0 2114 18112 16 22 3 0 0 syz-executor.2 [ 2115] 0 2115 18111 8736 23 4 0 0 syz-executor.0 [ 2116] 0 2116 18111 8739 24 4 0 0 syz-executor.5 [ 2120] 0 2120 18111 8735 24 4 0 0 syz-executor.3 [ 2122] 0 2122 18111 8736 24 4 0 0 syz-executor.1 [ 2124] 0 2124 18111 8737 24 4 0 0 syz-executor.4 [ 2127] 0 2127 18111 8738 23 4 0 0 syz-executor.2 [ 3063] 0 3063 5383 177 16 3 0 -1000 udevd [ 3080] 0 3080 5383 177 16 3 0 -1000 udevd [ 3249] 0 3249 18144 8714 25 3 0 1000 syz-executor.4 [ 3262] 0 3262 18144 8715 24 3 0 1000 syz-executor.2 [ 3274] 0 3274 18177 8718 24 3 0 1000 syz-executor.2 [ 3306] 0 3306 18210 8735 26 3 0 1000 syz-executor.4 [ 3307] 0 3307 18177 8718 24 3 0 1000 syz-executor.2 [ 3326] 0 3326 18144 8714 25 3 0 1000 syz-executor.4 [ 3341] 0 3341 18210 8721 25 3 0 1000 syz-executor.2 [ 3391] 0 3391 18177 8750 25 4 0 1000 syz-executor.2 [ 3484] 0 3484 18144 8718 24 3 0 1000 syz-executor.2 [ 3489] 0 3489 18210 8722 25 3 0 1000 syz-executor.2 [ 3508] 0 3508 18144 8718 24 3 0 1000 syz-executor.2 [ 4060] 0 4060 18144 8716 25 3 0 1000 syz-executor.5 [ 4105] 0 4105 18243 8733 25 3 0 1000 syz-executor.5 [ 4126] 0 4126 18144 8716 25 3 0 1000 syz-executor.5 [ 4127] 0 4127 18144 8715 24 3 0 1000 syz-executor.2 [ 4342] 0 4342 18177 8718 25 3 0 0 syz-executor.5 [ 4381] 0 4381 18177 8718 25 3 0 0 syz-executor.5 [ 4408] 0 4408 18177 8749 26 4 0 1000 syz-executor.3 [ 4418] 0 4418 18144 8747 26 4 0 1000 syz-executor.3 [ 4462] 0 4462 5383 177 16 3 0 -1000 udevd [ 4495] 0 4495 18144 8715 24 3 0 0 syz-executor.2 [ 4505] 0 4505 18210 8753 26 4 0 0 syz-executor.2 [ 4507] 0 4507 18177 8751 26 4 0 0 syz-executor.5 [ 4547] 0 4547 18210 8720 25 3 0 0 syz-executor.2 [ 4646] 0 4646 18177 8751 26 4 0 1000 syz-executor.3 [ 4729] 0 4729 18210 8753 26 4 0 0 syz-executor.5 [ 4977] 0 4977 18144 8747 26 4 0 0 syz-executor.3 [ 5181] 0 5181 18144 8719 25 3 0 0 syz-executor.5 [ 5191] 0 5191 18210 8725 25 3 0 0 syz-executor.5 [ 5216] 0 5216 18144 8719 25 3 0 0 syz-executor.5 [ 5270] 0 5270 18210 8755 26 4 0 0 syz-executor.2 [ 5611] 0 5607 18276 6 25 4 0 1000 syz-executor.0 Out of memory: Kill process 4646 (syz-executor.3) score 1004 or sacrifice child Killed process 4646 (syz-executor.3) total-vm:72708kB, anon-rss:164kB, file-rss:34840kB, shmem-rss:0kB syz-executor.0 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 5619 Comm: syz-executor.0 Tainted: G W 4.9.189+ #22 ffff8801cab57730 ffffffff81b65c01 ffff8801cab57a88 ffffffff833f14b0 00000000000003e8 ffff8801cab57aa0 0000000000000000 ffff8801cab577b0 ffffffff81506abb 0000000000000000 00000000000003e8 ffffffff82828535 Call Trace: [<0000000003319744>] __dump_stack lib/dump_stack.c:15 [inline] [<0000000003319744>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000e76ac1a3>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000ef86a6c0>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000005b3ca2bc>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000005b3ca2bc>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<000000004e1d0d48>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<000000004e1d0d48>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<000000004e1d0d48>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<00000000b9143c82>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000b9143c82>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000b9143c82>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000b9143c82>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<00000000b9143c82>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<00000000602cdaab>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000602cdaab>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000602cdaab>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000c6464259>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000005607c005>] do_replace net/ipv6/netfilter/ip6_tables.c:1175 [inline] [<000000005607c005>] do_ip6t_set_ctl+0x231/0x480 net/ipv6/netfilter/ip6_tables.c:1712 [<00000000f171dfcd>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000f171dfcd>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<0000000003f7c5cc>] ipv6_setsockopt net/ipv6/ipv6_sockglue.c:922 [inline] [<0000000003f7c5cc>] ipv6_setsockopt+0x10b/0x140 net/ipv6/ipv6_sockglue.c:906 [<00000000c3e2788f>] tcp_setsockopt net/ipv4/tcp.c:2759 [inline] [<00000000c3e2788f>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2753 [<0000000064f10db7>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<00000000c5709449>] SYSC_setsockopt net/socket.c:1786 [inline] [<00000000c5709449>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<00000000840764bc>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000061678c29>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:81180 inactive_anon:44 isolated_anon:0 active_file:22 inactive_file:44 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:5789 slab_unreclaimable:59592 mapped:52255 shmem:52 pagetables:1468 bounce:0 free:116 free_pcp:130 free_cma:0 Node 0 active_anon:324720kB inactive_anon:176kB active_file:88kB inactive_file:176kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:209020kB dirty:0kB writeback:0kB shmem:208kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:92kB 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:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:372kB min:5580kB low:9168kB high:12756kB active_anon:324720kB inactive_anon:176kB active_file:88kB inactive_file:176kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:23156kB slab_unreclaimable:238368kB kernel_stack:5056kB pagetables:5872kB bounce:0kB free_pcp:520kB local_pcp:520kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313625 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5384 176 17 3 0 -1000 udevd [ 584] 0 584 5383 181 16 3 0 -1000 udevd [ 588] 0 588 5812 594 16 3 0 -1000 udevd [ 1767] 0 1767 2492 574 8 3 0 0 dhclient [ 1908] 0 1908 14264 109 23 3 0 0 rsyslogd [ 1963] 0 1963 4724 51 15 3 0 0 cron [ 1981] 0 1981 3734 44 11 4 0 0 mcstransd [ 1983] 0 1983 12926 1231 27 3 0 0 restorecond [ 2009] 0 2009 12489 153 28 3 0 -1000 sshd [ 2039] 0 2039 3648 40 13 3 0 0 getty [ 2055] 0 2055 17820 196 39 3 0 0 sshd [ 2057] 0 2057 109922 76354 178 5 0 0 syz-fuzzer [ 2109] 0 2109 18112 15 22 3 0 0 syz-executor.0 [ 2110] 0 2110 18112 17 23 3 0 0 syz-executor.5 [ 2111] 0 2111 18112 15 23 3 0 0 syz-executor.1 [ 2112] 0 2112 18112 15 23 3 0 0 syz-executor.3 [ 2113] 0 2113 18112 17 23 3 0 0 syz-executor.4 [ 2114] 0 2114 18112 16 22 3 0 0 syz-executor.2 [ 2115] 0 2115 18111 8736 23 4 0 0 syz-executor.0 [ 2116] 0 2116 18111 8739 24 4 0 0 syz-executor.5 [ 2120] 0 2120 18111 8735 24 4 0 0 syz-executor.3 [ 2122] 0 2122 18111 8736 24 4 0 0 syz-executor.1 [ 2124] 0 2124 18111 8737 24 4 0 0 syz-executor.4 [ 2127] 0 2127 18111 8738 23 4 0 0 syz-executor.2 [ 3063] 0 3063 5383 177 16 3 0 -1000 udevd [ 3080] 0 3080 5383 177 16 3 0 -1000 udevd [ 3249] 0 3249 18144 8714 25 3 0 1000 syz-executor.4 [ 3262] 0 3262 18144 8715 24 3 0 1000 syz-executor.2 [ 3274] 0 3274 18177 8718 24 3 0 1000 syz-executor.2 [ 3306] 0 3306 18210 8735 26 3 0 1000 syz-executor.4 [ 3307] 0 3307 18177 8718 24 3 0 1000 syz-executor.2 [ 3326] 0 3326 18144 8714 25 3 0 1000 syz-executor.4 [ 3341] 0 3341 18210 8721 25 3 0 1000 syz-executor.2 [ 3391] 0 3391 18177 8750 25 4 0 1000 syz-executor.2 [ 3484] 0 3484 18144 8718 24 3 0 1000 syz-executor.2 [ 3489] 0 3489 18210 8722 25 3 0 1000 syz-executor.2 [ 3508] 0 3508 18144 8718 24 3 0 1000 syz-executor.2 [ 4060] 0 4060 18144 8716 25 3 0 1000 syz-executor.5 [ 4105] 0 4105 18243 8733 25 3 0 1000 syz-executor.5 [ 4126] 0 4126 18144 8716 25 3 0 1000 syz-executor.5 [ 4127] 0 4127 18144 8715 24 3 0 1000 syz-executor.2 [ 4342] 0 4342 18177 8718 25 3 0 0 syz-executor.5 [ 4381] 0 4381 18177 8718 25 3 0 0 syz-executor.5 [ 4408] 0 4408 18177 8749 26 4 0 1000 syz-executor.3 [ 4418] 0 4418 18144 8747 26 4 0 1000 syz-executor.3 [ 4462] 0 4462 5383 177 16 3 0 -1000 udevd [ 4495] 0 4495 18144 8715 24 3 0 0 syz-executor.2 [ 4505] 0 4505 18210 8753 26 4 0 0 syz-executor.2 [ 4507] 0 4507 18177 8751 26 4 0 0 syz-executor.5 [ 4547] 0 4547 18210 8720 25 3 0 0 syz-executor.2 [ 4729] 0 4729 18210 8753 26 4 0 0 syz-executor.5 [ 4977] 0 4977 18144 8747 26 4 0 0 syz-executor.3 [ 5181] 0 5181 18144 8719 25 3 0 0 syz-executor.5 [ 5191] 0 5191 18210 8725 25 3 0 0 syz-executor.5 [ 5216] 0 5216 18144 8719 25 3 0 0 syz-executor.5 [ 5270] 0 5270 18210 8755 26 4 0 0 syz-executor.2 [ 5611] 0 5607 18276 6 25 4 0 1000 syz-executor.0 Out of memory: Kill process 3391 (syz-executor.2) score 1004 or sacrifice child Killed process 3391 (syz-executor.2) total-vm:72708kB, anon-rss:160kB, file-rss:34840kB, shmem-rss:0kB syz-executor.2 invoked oom-killer: gfp_mask=0x2400840(GFP_NOFS|__GFP_NOFAIL), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 3391 Comm: syz-executor.2 Tainted: G W 4.9.189+ #22 ffff88019f216e78 ffffffff81b65c01 ffff88019f2171d0 ffffffff833f14b0 00000000000003e8 ffff88019f2171e8 0000000000000000 ffff88019f216ef8 ffffffff81506abb 0000000000000000 00000000000003e8 ffffffff82828535 Call Trace: [<0000000003319744>] __dump_stack lib/dump_stack.c:15 [inline] [<0000000003319744>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000e76ac1a3>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000ef86a6c0>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000005b3ca2bc>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000005b3ca2bc>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<00000000cffc9583>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<00000000cffc9583>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<00000000cffc9583>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<0000000088c9525f>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000088c9525f>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000088c9525f>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000088c9525f>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<0000000088c9525f>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<00000000db3a20f4>] find_or_create_page include/linux/pagemap.h:310 [inline] [<00000000db3a20f4>] ext4_mb_load_buddy_gfp+0x90a/0x1100 fs/ext4/mballoc.c:1172 [<0000000030282e4b>] ext4_free_blocks+0x827/0x23d0 fs/ext4/mballoc.c:4834 [<00000000761de5ed>] ext4_remove_blocks fs/ext4/extents.c:2585 [inline] [<00000000761de5ed>] ext4_ext_rm_leaf fs/ext4/extents.c:2741 [inline] [<00000000761de5ed>] ext4_ext_remove_space+0x21cd/0x3a90 fs/ext4/extents.c:2974 [<00000000c66a0878>] ext4_ext_truncate+0x17e/0x280 fs/ext4/extents.c:4677 [<00000000891c738f>] ext4_truncate+0x526/0x1300 fs/ext4/inode.c:4243 [<000000005e65f8cb>] ext4_evict_inode+0xc50/0x1270 fs/ext4/inode.c:265 [<00000000711f5ff9>] evict+0x2e9/0x630 fs/inode.c:553 [<00000000040f1ab8>] iput_final fs/inode.c:1516 [inline] [<00000000040f1ab8>] iput fs/inode.c:1543 [inline] [<00000000040f1ab8>] iput+0x370/0x900 fs/inode.c:1528 [<000000002f8445ff>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369 [<000000009322e023>] __dentry_kill+0x333/0x580 fs/dcache.c:571 [<000000004ad70340>] dentry_kill fs/dcache.c:612 [inline] [<000000004ad70340>] dput.part.0+0x509/0x7c0 fs/dcache.c:829 [<000000008c55b20c>] dput+0x20/0x30 fs/dcache.c:791 [<0000000050caea60>] path_put+0x31/0x70 fs/namei.c:516 [<00000000a04c05c4>] free_fs_struct+0x25/0x70 fs/fs_struct.c:90 [<000000003283cef3>] exit_fs+0xe7/0x120 fs/fs_struct.c:108 [<000000008e7b93cd>] do_exit+0x769/0x2aa0 kernel/exit.c:838 [<000000006bcd40bc>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<00000000a9fb5a53>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<00000000fc3f52f1>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<00000000e265a44b>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<000000009767175e>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<000000009767175e>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<000000009767175e>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<0000000061678c29>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:81155 inactive_anon:44 isolated_anon:0 active_file:22 inactive_file:44 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:5789 slab_unreclaimable:59592 mapped:52255 shmem:52 pagetables:1468 bounce:0 free:141 free_pcp:158 free_cma:0 Node 0 active_anon:324620kB inactive_anon:176kB active_file:88kB inactive_file:176kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:209020kB dirty:0kB writeback:0kB shmem:208kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:92kB 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:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:472kB min:5580kB low:9168kB high:12756kB active_anon:324620kB inactive_anon:176kB active_file:88kB inactive_file:176kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:23156kB slab_unreclaimable:238368kB kernel_stack:5056kB pagetables:5872kB bounce:0kB free_pcp:632kB 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 5384 176 17 3 0 -1000 udevd [ 584] 0 584 5383 181 16 3 0 -1000 udevd [ 588] 0 588 5812 594 16 3 0 -1000 udevd [ 1767] 0 1767 2492 574 8 3 0 0 dhclient [ 1908] 0 1908 14264 109 23 3 0 0 rsyslogd [ 1963] 0 1963 4724 51 15 3 0 0 cron [ 1981] 0 1981 3734 44 11 4 0 0 mcstransd [ 1983] 0 1983 12926 1231 27 3 0 0 restorecond [ 2009] 0 2009 12489 153 28 3 0 -1000 sshd [ 2039] 0 2039 3648 40 13 3 0 0 getty [ 2055] 0 2055 17820 196 39 3 0 0 sshd [ 2057] 0 2057 109922 76354 178 5 0 0 syz-fuzzer [ 2109] 0 2109 18112 15 22 3 0 0 syz-executor.0 [ 2110] 0 2110 18112 17 23 3 0 0 syz-executor.5 [ 2111] 0 2111 18112 15 23 3 0 0 syz-executor.1 [ 2112] 0 2112 18112 15 23 3 0 0 syz-executor.3 [ 2113] 0 2113 18112 17 23 3 0 0 syz-executor.4 [ 2114] 0 2114 18112 16 22 3 0 0 syz-executor.2 [ 2115] 0 2115 18111 8736 23 4 0 0 syz-executor.0 [ 2116] 0 2116 18111 8739 24 4 0 0 syz-executor.5 [ 2120] 0 2120 18111 8735 24 4 0 0 syz-executor.3 [ 2122] 0 2122 18111 8736 24 4 0 0 syz-executor.1 [ 2124] 0 2124 18111 8737 24 4 0 0 syz-executor.4 [ 2127] 0 2127 18111 8738 23 4 0 0 syz-executor.2 [ 3063] 0 3063 5383 177 16 3 0 -1000 udevd [ 3080] 0 3080 5383 177 16 3 0 -1000 udevd [ 3249] 0 3249 18144 8714 25 3 0 1000 syz-executor.4 [ 3262] 0 3262 18144 8715 24 3 0 1000 syz-executor.2 [ 3274] 0 3274 18177 8718 24 3 0 1000 syz-executor.2 [ 3306] 0 3306 18210 8735 26 3 0 1000 syz-executor.4 [ 3307] 0 3307 18177 8718 24 3 0 1000 syz-executor.2 [ 3326] 0 3326 18144 8714 25 3 0 1000 syz-executor.4 [ 3341] 0 3341 18210 8721 25 3 0 1000 syz-executor.2 [ 3484] 0 3484 18144 8718 24 3 0 1000 syz-executor.2 [ 3489] 0 3489 18210 8722 25 3 0 1000 syz-executor.2 [ 3508] 0 3508 18144 8718 24 3 0 1000 syz-executor.2 [ 4060] 0 4060 18144 8716 25 3 0 1000 syz-executor.5 [ 4105] 0 4105 18243 8733 25 3 0 1000 syz-executor.5 [ 4126] 0 4126 18144 8716 25 3 0 1000 syz-executor.5 [ 4127] 0 4127 18144 8715 24 3 0 1000 syz-executor.2 [ 4342] 0 4342 18177 8718 25 3 0 0 syz-executor.5 [ 4381] 0 4381 18177 8718 25 3 0 0 syz-executor.5 [ 4408] 0 4408 18177 8749 26 4 0 1000 syz-executor.3 [ 4418] 0 4418 18144 8747 26 4 0 1000 syz-executor.3 [ 4462] 0 4462 5383 177 16 3 0 -1000 udevd [ 4495] 0 4495 18144 8715 24 3 0 0 syz-executor.2 [ 4505] 0 4505 18210 8753 26 4 0 0 syz-executor.2 [ 4507] 0 4507 18177 8751 26 4 0 0 syz-executor.5 [ 4547] 0 4547 18210 8720 25 3 0 0 syz-executor.2 [ 4729] 0 4729 18210 8753 26 4 0 0 syz-executor.5 [ 4977] 0 4977 18144 8747 26 4 0 0 syz-executor.3 [ 5181] 0 5181 18144 8719 25 3 0 0 syz-executor.5 [ 5191] 0 5191 18210 8725 25 3 0 0 syz-executor.5 [ 5216] 0 5216 18144 8719 25 3 0 0 syz-executor.5 [ 5270] 0 5270 18210 8755 26 4 0 0 syz-executor.2 [ 5611] 0 5607 18276 6 25 4 0 1000 syz-executor.0 Out of memory: Kill process 4408 (syz-executor.3) score 1004 or sacrifice child Killed process 4408 (syz-executor.3) total-vm:72708kB, anon-rss:156kB, file-rss:34840kB, shmem-rss:0kB syz-executor.3 invoked oom-killer: gfp_mask=0x2400840(GFP_NOFS|__GFP_NOFAIL), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 4408 Comm: syz-executor.3 Tainted: G W 4.9.189+ #22 ffff8801a0bc6e78 ffffffff81b65c01 ffff8801a0bc71d0 ffffffff833f14b0 00000000000003e8 ffff8801a0bc71e8 0000000000000000 ffff8801a0bc6ef8 ffffffff81506abb 0000000000000000 00000000000003e8 ffffffff82828535 Call Trace: [<0000000003319744>] __dump_stack lib/dump_stack.c:15 [inline] [<0000000003319744>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000e76ac1a3>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000ef86a6c0>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000005b3ca2bc>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000005b3ca2bc>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<00000000cffc9583>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<00000000cffc9583>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<00000000cffc9583>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<0000000088c9525f>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000088c9525f>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000088c9525f>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000088c9525f>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<0000000088c9525f>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<00000000db3a20f4>] find_or_create_page include/linux/pagemap.h:310 [inline] [<00000000db3a20f4>] ext4_mb_load_buddy_gfp+0x90a/0x1100 fs/ext4/mballoc.c:1172 [<0000000030282e4b>] ext4_free_blocks+0x827/0x23d0 fs/ext4/mballoc.c:4834 [<00000000761de5ed>] ext4_remove_blocks fs/ext4/extents.c:2585 [inline] [<00000000761de5ed>] ext4_ext_rm_leaf fs/ext4/extents.c:2741 [inline] [<00000000761de5ed>] ext4_ext_remove_space+0x21cd/0x3a90 fs/ext4/extents.c:2974 [<00000000c66a0878>] ext4_ext_truncate+0x17e/0x280 fs/ext4/extents.c:4677 [<00000000891c738f>] ext4_truncate+0x526/0x1300 fs/ext4/inode.c:4243 [<000000005e65f8cb>] ext4_evict_inode+0xc50/0x1270 fs/ext4/inode.c:265 [<00000000711f5ff9>] evict+0x2e9/0x630 fs/inode.c:553 [<00000000040f1ab8>] iput_final fs/inode.c:1516 [inline] [<00000000040f1ab8>] iput fs/inode.c:1543 [inline] [<00000000040f1ab8>] iput+0x370/0x900 fs/inode.c:1528 [<000000002f8445ff>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369 [<000000009322e023>] __dentry_kill+0x333/0x580 fs/dcache.c:571 [<000000004ad70340>] dentry_kill fs/dcache.c:612 [inline] [<000000004ad70340>] dput.part.0+0x509/0x7c0 fs/dcache.c:829 [<000000008c55b20c>] dput+0x20/0x30 fs/dcache.c:791 [<0000000050caea60>] path_put+0x31/0x70 fs/namei.c:516 [<00000000a04c05c4>] free_fs_struct+0x25/0x70 fs/fs_struct.c:90 [<000000003283cef3>] exit_fs+0xe7/0x120 fs/fs_struct.c:108 [<000000008e7b93cd>] do_exit+0x769/0x2aa0 kernel/exit.c:838 [<000000006bcd40bc>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<00000000a9fb5a53>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<00000000fc3f52f1>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<00000000e265a44b>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<000000009767175e>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<000000009767175e>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<000000009767175e>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<0000000061678c29>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:81130 inactive_anon:44 isolated_anon:0 active_file:22 inactive_file:44 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:5789 slab_unreclaimable:59592 mapped:52255 shmem:52 pagetables:1431 bounce:0 free:191 free_pcp:157 free_cma:0 Node 0 active_anon:324520kB inactive_anon:176kB active_file:88kB inactive_file:176kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:209020kB dirty:0kB writeback:0kB shmem:208kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:92kB 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:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:672kB min:5580kB low:9168kB high:12756kB active_anon:324520kB inactive_anon:176kB active_file:88kB inactive_file:176kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:23156kB slab_unreclaimable:238368kB kernel_stack:5056kB pagetables:5724kB bounce:0kB free_pcp:628kB local_pcp:628kB 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 5384 176 17 3 0 -1000 udevd [ 584] 0 584 5383 181 16 3 0 -1000 udevd [ 588] 0 588 5812 594 16 3 0 -1000 udevd [ 1767] 0 1767 2492 574 8 3 0 0 dhclient [ 1908] 0 1908 14264 109 23 3 0 0 rsyslogd [ 1963] 0 1963 4724 51 15 3 0 0 cron [ 1981] 0 1981 3734 44 11 4 0 0 mcstransd [ 1983] 0 1983 12926 1231 27 3 0 0 restorecond [ 2009] 0 2009 12489 153 28 3 0 -1000 sshd [ 2039] 0 2039 3648 40 13 3 0 0 getty [ 2055] 0 2055 17820 196 39 3 0 0 sshd [ 2057] 0 2057 109922 76354 178 5 0 0 syz-fuzzer [ 2109] 0 2109 18112 15 22 3 0 0 syz-executor.0 [ 2110] 0 2110 18112 17 23 3 0 0 syz-executor.5 [ 2111] 0 2111 18112 15 23 3 0 0 syz-executor.1 [ 2112] 0 2112 18112 15 23 3 0 0 syz-executor.3 [ 2113] 0 2113 18112 17 23 3 0 0 syz-executor.4 [ 2114] 0 2114 18112 16 22 3 0 0 syz-executor.2 [ 2115] 0 2115 18111 8736 23 4 0 0 syz-executor.0 [ 2116] 0 2116 18111 8739 24 4 0 0 syz-executor.5 [ 2120] 0 2120 18111 8735 24 4 0 0 syz-executor.3 [ 2122] 0 2122 18111 8736 24 4 0 0 syz-executor.1 [ 2124] 0 2124 18111 8737 24 4 0 0 syz-executor.4 [ 2127] 0 2127 18111 8738 23 4 0 0 syz-executor.2 [ 3063] 0 3063 5383 177 16 3 0 -1000 udevd [ 3080] 0 3080 5383 177 16 3 0 -1000 udevd [ 3249] 0 3249 18144 8714 25 3 0 1000 syz-executor.4 [ 3262] 0 3262 18144 8715 24 3 0 1000 syz-executor.2 [ 3274] 0 3274 18177 8718 24 3 0 1000 syz-executor.2 [ 3306] 0 3306 18210 8735 26 3 0 1000 syz-executor.4 [ 3307] 0 3307 18177 8718 24 3 0 1000 syz-executor.2 [ 3326] 0 3326 18144 8714 25 3 0 1000 syz-executor.4 [ 3341] 0 3341 18210 8721 25 3 0 1000 syz-executor.2 [ 3484] 0 3484 18144 8718 24 3 0 1000 syz-executor.2 [ 3489] 0 3489 18210 8722 25 3 0 1000 syz-executor.2 [ 3508] 0 3508 18144 8718 24 3 0 1000 syz-executor.2 [ 4060] 0 4060 18144 8716 25 3 0 1000 syz-executor.5 [ 4105] 0 4105 18243 8733 25 3 0 1000 syz-executor.5 [ 4126] 0 4126 18144 8716 25 3 0 1000 syz-executor.5 [ 4127] 0 4127 18144 8715 24 3 0 1000 syz-executor.2 [ 4342] 0 4342 18177 8718 25 3 0 0 syz-executor.5 [ 4381] 0 4381 18177 8718 25 3 0 0 syz-executor.5 [ 4418] 0 4418 18144 8747 26 4 0 1000 syz-executor.3 [ 4462] 0 4462 5383 177 16 3 0 -1000 udevd [ 4495] 0 4495 18144 8715 24 3 0 0 syz-executor.2 [ 4505] 0 4505 18210 8753 26 4 0 0 syz-executor.2 [ 4507] 0 4507 18177 8751 26 4 0 0 syz-executor.5 [ 4547] 0 4547 18210 8720 25 3 0 0 syz-executor.2 [ 4729] 0 4729 18210 8753 26 4 0 0 syz-executor.5 [ 4977] 0 4977 18144 8747 26 4 0 0 syz-executor.3 [ 5181] 0 5181 18144 8719 25 3 0 0 syz-executor.5 [ 5191] 0 5191 18210 8725 25 3 0 0 syz-executor.5 [ 5216] 0 5216 18144 8719 25 3 0 0 syz-executor.5 [ 5270] 0 5270 18210 8755 26 4 0 0 syz-executor.2 [ 5611] 0 5607 18276 6 25 4 0 1000 syz-executor.0 Out of memory: Kill process 4418 (syz-executor.3) score 1004 or sacrifice child Killed process 4418 (syz-executor.3) total-vm:72576kB, anon-rss:148kB, file-rss:34840kB, shmem-rss:0kB syz-executor.2 invoked oom-killer: gfp_mask=0x2400840(GFP_NOFS|__GFP_NOFAIL), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 3391 Comm: syz-executor.2 Tainted: G W 4.9.189+ #22 ffff88019f216e78 ffffffff81b65c01 ffff88019f2171d0 ffffffff833f14b0 00000000000003e8 ffff88019f2171e8 0000000000000000 ffff88019f216ef8 ffffffff81506abb 0000000000000000 00000000000003e8 ffffffff82828535 Call Trace: [<0000000003319744>] __dump_stack lib/dump_stack.c:15 [inline] [<0000000003319744>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000e76ac1a3>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000ef86a6c0>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000005b3ca2bc>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000005b3ca2bc>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<00000000cffc9583>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<00000000cffc9583>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<00000000cffc9583>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<0000000088c9525f>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000088c9525f>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000088c9525f>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000088c9525f>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<0000000088c9525f>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<00000000b4b357ef>] find_or_create_page include/linux/pagemap.h:310 [inline] [<00000000b4b357ef>] ext4_mb_load_buddy_gfp+0x659/0x1100 fs/ext4/mballoc.c:1208 [<0000000030282e4b>] ext4_free_blocks+0x827/0x23d0 fs/ext4/mballoc.c:4834 [<00000000761de5ed>] ext4_remove_blocks fs/ext4/extents.c:2585 [inline] [<00000000761de5ed>] ext4_ext_rm_leaf fs/ext4/extents.c:2741 [inline] [<00000000761de5ed>] ext4_ext_remove_space+0x21cd/0x3a90 fs/ext4/extents.c:2974 [<00000000c66a0878>] ext4_ext_truncate+0x17e/0x280 fs/ext4/extents.c:4677 [<00000000891c738f>] ext4_truncate+0x526/0x1300 fs/ext4/inode.c:4243 [<000000005e65f8cb>] ext4_evict_inode+0xc50/0x1270 fs/ext4/inode.c:265 [<00000000711f5ff9>] evict+0x2e9/0x630 fs/inode.c:553 [<00000000040f1ab8>] iput_final fs/inode.c:1516 [inline] [<00000000040f1ab8>] iput fs/inode.c:1543 [inline] [<00000000040f1ab8>] iput+0x370/0x900 fs/inode.c:1528 [<000000002f8445ff>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369 [<000000009322e023>] __dentry_kill+0x333/0x580 fs/dcache.c:571 [<000000004ad70340>] dentry_kill fs/dcache.c:612 [inline] [<000000004ad70340>] dput.part.0+0x509/0x7c0 fs/dcache.c:829 [<000000008c55b20c>] dput+0x20/0x30 fs/dcache.c:791 [<0000000050caea60>] path_put+0x31/0x70 fs/namei.c:516 [<00000000a04c05c4>] free_fs_struct+0x25/0x70 fs/fs_struct.c:90 [<000000003283cef3>] exit_fs+0xe7/0x120 fs/fs_struct.c:108 [<000000008e7b93cd>] do_exit+0x769/0x2aa0 kernel/exit.c:838 [<000000006bcd40bc>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<00000000a9fb5a53>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<00000000fc3f52f1>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<00000000e265a44b>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<000000009767175e>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<000000009767175e>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<000000009767175e>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<0000000061678c29>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:81080 inactive_anon:44 isolated_anon:0 active_file:22 inactive_file:44 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:5789 slab_unreclaimable:59592 mapped:52255 shmem:52 pagetables:1394 bounce:0 free:266 free_pcp:157 free_cma:0 Node 0 active_anon:324320kB inactive_anon:176kB active_file:88kB inactive_file:176kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:209020kB dirty:0kB writeback:0kB shmem:208kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:92kB 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:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:972kB min:5580kB low:9168kB high:12756kB active_anon:324320kB inactive_anon:176kB active_file:88kB inactive_file:176kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:23156kB slab_unreclaimable:238368kB kernel_stack:5056kB pagetables:5576kB bounce:0kB free_pcp:628kB local_pcp:628kB 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 5384 176 17 3 0 -1000 udevd [ 584] 0 584 5383 181 16 3 0 -1000 udevd [ 588] 0 588 5812 594 16 3 0 -1000 udevd [ 1767] 0 1767 2492 574 8 3 0 0 dhclient [ 1908] 0 1908 14264 109 23 3 0 0 rsyslogd [ 1963] 0 1963 4724 51 15 3 0 0 cron [ 1981] 0 1981 3734 44 11 4 0 0 mcstransd [ 1983] 0 1983 12926 1231 27 3 0 0 restorecond [ 2009] 0 2009 12489 153 28 3 0 -1000 sshd [ 2039] 0 2039 3648 40 13 3 0 0 getty [ 2055] 0 2055 17820 196 39 3 0 0 sshd [ 2057] 0 2057 109922 76354 178 5 0 0 syz-fuzzer [ 2109] 0 2109 18112 15 22 3 0 0 syz-executor.0 [ 2110] 0 2110 18112 17 23 3 0 0 syz-executor.5 [ 2111] 0 2111 18112 15 23 3 0 0 syz-executor.1 [ 2112] 0 2112 18112 15 23 3 0 0 syz-executor.3 [ 2113] 0 2113 18112 17 23 3 0 0 syz-executor.4 [ 2114] 0 2114 18112 16 22 3 0 0 syz-executor.2 [ 2115] 0 2115 18111 8736 23 4 0 0 syz-executor.0 [ 2116] 0 2116 18111 8739 24 4 0 0 syz-executor.5 [ 2120] 0 2120 18111 8735 24 4 0 0 syz-executor.3 [ 2122] 0 2122 18111 8736 24 4 0 0 syz-executor.1 [ 2124] 0 2124 18111 8737 24 4 0 0 syz-executor.4 [ 2127] 0 2127 18111 8738 23 4 0 0 syz-executor.2 [ 3063] 0 3063 5383 177 16 3 0 -1000 udevd [ 3080] 0 3080 5383 177 16 3 0 -1000 udevd [ 3249] 0 3249 18144 8714 25 3 0 1000 syz-executor.4 [ 3262] 0 3262 18144 8715 24 3 0 1000 syz-executor.2 [ 3274] 0 3274 18177 8718 24 3 0 1000 syz-executor.2 [ 3306] 0 3306 18210 8735 26 3 0 1000 syz-executor.4 [ 3307] 0 3307 18177 8718 24 3 0 1000 syz-executor.2 [ 3326] 0 3326 18144 8714 25 3 0 1000 syz-executor.4 [ 3341] 0 3341 18210 8721 25 3 0 1000 syz-executor.2 [ 3484] 0 3484 18144 8718 24 3 0 1000 syz-executor.2 [ 3489] 0 3489 18210 8722 25 3 0 1000 syz-executor.2 [ 3508] 0 3508 18144 8718 24 3 0 1000 syz-executor.2 [ 4060] 0 4060 18144 8716 25 3 0 1000 syz-executor.5 [ 4105] 0 4105 18243 8733 25 3 0 1000 syz-executor.5 [ 4126] 0 4126 18144 8716 25 3 0 1000 syz-executor.5 [ 4127] 0 4127 18144 8715 24 3 0 1000 syz-executor.2 [ 4342] 0 4342 18177 8718 25 3 0 0 syz-executor.5 [ 4381] 0 4381 18177 8718 25 3 0 0 syz-executor.5 [ 4462] 0 4462 5383 177 16 3 0 -1000 udevd [ 4495] 0 4495 18144 8715 24 3 0 0 syz-executor.2 [ 4505] 0 4505 18210 8753 26 4 0 0 syz-executor.2 [ 4507] 0 4507 18177 8751 26 4 0 0 syz-executor.5 [ 4547] 0 4547 18210 8720 25 3 0 0 syz-executor.2 [ 4729] 0 4729 18210 8753 26 4 0 0 syz-executor.5 [ 4977] 0 4977 18144 8747 26 4 0 0 syz-executor.3 [ 5181] 0 5181 18144 8719 25 3 0 0 syz-executor.5 [ 5191] 0 5191 18210 8725 25 3 0 0 syz-executor.5 [ 5216] 0 5216 18144 8719 25 3 0 0 syz-executor.5 [ 5270] 0 5270 18210 8755 26 4 0 0 syz-executor.2 [ 5611] 0 5607 18276 6 25 4 0 1000 syz-executor.0 Out of memory: Kill process 3306 (syz-executor.4) score 1004 or sacrifice child Killed process 3306 (syz-executor.4) total-vm:72840kB, anon-rss:232kB, file-rss:34708kB, shmem-rss:0kB syz-executor.3 invoked oom-killer: gfp_mask=0x2400840(GFP_NOFS|__GFP_NOFAIL), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 4418 Comm: syz-executor.3 Tainted: G W 4.9.189+ #22 ffff8801cb5d6e78 ffffffff81b65c01 ffff8801cb5d71d0 ffffffff833f14b0 00000000000003e8 ffff8801cb5d71e8 0000000000000000 ffff8801cb5d6ef8 ffffffff81506abb 0000000000000000 00000000000003e8 ffffffff82828535 Call Trace: [<0000000003319744>] __dump_stack lib/dump_stack.c:15 [inline] [<0000000003319744>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000e76ac1a3>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000ef86a6c0>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000005b3ca2bc>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000005b3ca2bc>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<00000000cffc9583>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<00000000cffc9583>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<00000000cffc9583>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<0000000088c9525f>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000088c9525f>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000088c9525f>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000088c9525f>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<0000000088c9525f>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<00000000b4b357ef>] find_or_create_page include/linux/pagemap.h:310 [inline] [<00000000b4b357ef>] ext4_mb_load_buddy_gfp+0x659/0x1100 fs/ext4/mballoc.c:1208 [<0000000030282e4b>] ext4_free_blocks+0x827/0x23d0 fs/ext4/mballoc.c:4834 [<00000000761de5ed>] ext4_remove_blocks fs/ext4/extents.c:2585 [inline] [<00000000761de5ed>] ext4_ext_rm_leaf fs/ext4/extents.c:2741 [inline] [<00000000761de5ed>] ext4_ext_remove_space+0x21cd/0x3a90 fs/ext4/extents.c:2974 [<00000000c66a0878>] ext4_ext_truncate+0x17e/0x280 fs/ext4/extents.c:4677 [<00000000891c738f>] ext4_truncate+0x526/0x1300 fs/ext4/inode.c:4243 [<000000005e65f8cb>] ext4_evict_inode+0xc50/0x1270 fs/ext4/inode.c:265 [<00000000711f5ff9>] evict+0x2e9/0x630 fs/inode.c:553 [<00000000040f1ab8>] iput_final fs/inode.c:1516 [inline] [<00000000040f1ab8>] iput fs/inode.c:1543 [inline] [<00000000040f1ab8>] iput+0x370/0x900 fs/inode.c:1528 [<000000002f8445ff>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369 [<000000009322e023>] __dentry_kill+0x333/0x580 fs/dcache.c:571 [<000000004ad70340>] dentry_kill fs/dcache.c:612 [inline] [<000000004ad70340>] dput.part.0+0x509/0x7c0 fs/dcache.c:829 [<000000008c55b20c>] dput+0x20/0x30 fs/dcache.c:791 [<0000000050caea60>] path_put+0x31/0x70 fs/namei.c:516 [<00000000a04c05c4>] free_fs_struct+0x25/0x70 fs/fs_struct.c:90 [<000000003283cef3>] exit_fs+0xe7/0x120 fs/fs_struct.c:108 [<000000008e7b93cd>] do_exit+0x769/0x2aa0 kernel/exit.c:838 [<000000006bcd40bc>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<00000000a9fb5a53>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<00000000fc3f52f1>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<00000000e265a44b>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<000000009767175e>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<000000009767175e>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<000000009767175e>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<0000000061678c29>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:81055 inactive_anon:44 isolated_anon:0 active_file:22 inactive_file:44 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:5789 slab_unreclaimable:59592 mapped:52255 shmem:52 pagetables:1357 bounce:0 free:235 free_pcp:263 free_cma:0 Node 0 active_anon:324220kB inactive_anon:176kB active_file:88kB inactive_file:176kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:209020kB dirty:0kB writeback:0kB shmem:208kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:92kB 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:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:848kB min:5580kB low:9168kB high:12756kB active_anon:324220kB inactive_anon:176kB active_file:88kB inactive_file:176kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:23156kB slab_unreclaimable:238368kB kernel_stack:4992kB pagetables:5428kB bounce:0kB free_pcp:1052kB local_pcp:624kB 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 5384 176 17 3 0 -1000 udevd [ 584] 0 584 5383 181 16 3 0 -1000 udevd [ 588] 0 588 5812 594 16 3 0 -1000 udevd [ 1767] 0 1767 2492 574 8 3 0 0 dhclient [ 1908] 0 1908 14264 109 23 3 0 0 rsyslogd [ 1963] 0 1963 4724 51 15 3 0 0 cron [ 1981] 0 1981 3734 44 11 4 0 0 mcstransd [ 1983] 0 1983 12926 1231 27 3 0 0 restorecond [ 2009] 0 2009 12489 153 28 3 0 -1000 sshd [ 2039] 0 2039 3648 40 13 3 0 0 getty [ 2055] 0 2055 17820 196 39 3 0 0 sshd [ 2057] 0 2057 109922 76354 178 5 0 0 syz-fuzzer [ 2109] 0 2109 18112 15 22 3 0 0 syz-executor.0 [ 2110] 0 2110 18112 17 23 3 0 0 syz-executor.5 [ 2111] 0 2111 18112 15 23 3 0 0 syz-executor.1 [ 2112] 0 2112 18112 15 23 3 0 0 syz-executor.3 [ 2113] 0 2113 18112 17 23 3 0 0 syz-executor.4 [ 2114] 0 2114 18112 16 22 3 0 0 syz-executor.2 [ 2115] 0 2115 18111 8736 23 4 0 0 syz-executor.0 [ 2116] 0 2116 18111 8739 24 4 0 0 syz-executor.5 [ 2120] 0 2120 18111 8735 24 4 0 0 syz-executor.3 [ 2122] 0 2122 18111 8736 24 4 0 0 syz-executor.1 [ 2124] 0 2124 18111 8737 24 4 0 0 syz-executor.4 [ 2127] 0 2127 18111 8738 23 4 0 0 syz-executor.2 [ 3063] 0 3063 5383 177 16 3 0 -1000 udevd [ 3080] 0 3080 5383 177 16 3 0 -1000 udevd [ 3249] 0 3249 18144 8714 25 3 0 1000 syz-executor.4 [ 3262] 0 3262 18144 8715 24 3 0 1000 syz-executor.2 [ 3274] 0 3274 18177 8718 24 3 0 1000 syz-executor.2 [ 3307] 0 3307 18177 8718 24 3 0 1000 syz-executor.2 [ 3326] 0 3326 18144 8714 25 3 0 1000 syz-executor.4 [ 3341] 0 3341 18210 8721 25 3 0 1000 syz-executor.2 [ 3484] 0 3484 18144 8718 24 3 0 1000 syz-executor.2 [ 3489] 0 3489 18210 8722 25 3 0 1000 syz-executor.2 [ 3508] 0 3508 18144 8718 24 3 0 1000 syz-executor.2 [ 4060] 0 4060 18144 8716 25 3 0 1000 syz-executor.5 [ 4105] 0 4105 18243 8733 25 3 0 1000 syz-executor.5 [ 4126] 0 4126 18144 8716 25 3 0 1000 syz-executor.5 [ 4127] 0 4127 18144 8715 24 3 0 1000 syz-executor.2 [ 4342] 0 4342 18177 8718 25 3 0 0 syz-executor.5 [ 4381] 0 4381 18177 8718 25 3 0 0 syz-executor.5 [ 4462] 0 4462 5383 177 16 3 0 -1000 udevd [ 4495] 0 4495 18144 8715 24 3 0 0 syz-executor.2 [ 4505] 0 4505 18210 8753 26 4 0 0 syz-executor.2 [ 4507] 0 4507 18177 8751 26 4 0 0 syz-executor.5 [ 4547] 0 4547 18210 8720 25 3 0 0 syz-executor.2 [ 4729] 0 4729 18210 8753 26 4 0 0 syz-executor.5 [ 4977] 0 4977 18144 8747 26 4 0 0 syz-executor.3 [ 5181] 0 5181 18144 8719 25 3 0 0 syz-executor.5 [ 5191] 0 5191 18210 8725 25 3 0 0 syz-executor.5 [ 5216] 0 5216 18144 8719 25 3 0 0 syz-executor.5 [ 5270] 0 5270 18210 8755 26 4 0 0 syz-executor.2 [ 5611] 0 5607 18276 6 25 4 0 1000 syz-executor.0 Out of memory: Kill process 4105 (syz-executor.5) score 1004 or sacrifice child Killed process 4105 (syz-executor.5) total-vm:72972kB, anon-rss:224kB, file-rss:34708kB, shmem-rss:0kB syz-executor.0 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 5619 Comm: syz-executor.0 Tainted: G W 4.9.189+ #22 ffff8801cab57730 ffffffff81b65c01 ffff8801cab57a88 ffffffff833f14b0 00000000000003e8 ffff8801cab57aa0 0000000000000000 ffff8801cab577b0 ffffffff81506abb 0000000000000000 00000000000003e8 ffffffff82828535 Call Trace: [<0000000003319744>] __dump_stack lib/dump_stack.c:15 [inline] [<0000000003319744>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000e76ac1a3>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000ef86a6c0>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000005b3ca2bc>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000005b3ca2bc>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<000000004e1d0d48>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<000000004e1d0d48>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<000000004e1d0d48>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<00000000b9143c82>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000b9143c82>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000b9143c82>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000b9143c82>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<00000000b9143c82>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<00000000602cdaab>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000602cdaab>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000602cdaab>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000c6464259>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000005607c005>] do_replace net/ipv6/netfilter/ip6_tables.c:1175 [inline] [<000000005607c005>] do_ip6t_set_ctl+0x231/0x480 net/ipv6/netfilter/ip6_tables.c:1712 [<00000000f171dfcd>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000f171dfcd>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<0000000003f7c5cc>] ipv6_setsockopt net/ipv6/ipv6_sockglue.c:922 [inline] [<0000000003f7c5cc>] ipv6_setsockopt+0x10b/0x140 net/ipv6/ipv6_sockglue.c:906 [<00000000c3e2788f>] tcp_setsockopt net/ipv4/tcp.c:2759 [inline] [<00000000c3e2788f>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2753 [<0000000064f10db7>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<00000000c5709449>] SYSC_setsockopt net/socket.c:1786 [inline] [<00000000c5709449>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<00000000840764bc>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000061678c29>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:81005 inactive_anon:44 isolated_anon:0 active_file:22 inactive_file:44 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:5789 slab_unreclaimable:59592 mapped:52255 shmem:52 pagetables:1357 bounce:0 free:235 free_pcp:334 free_cma:0 Node 0 active_anon:324020kB inactive_anon:176kB active_file:88kB inactive_file:176kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:209020kB dirty:0kB writeback:0kB shmem:208kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:92kB 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:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:848kB min:5580kB low:9168kB high:12756kB active_anon:324020kB inactive_anon:176kB active_file:88kB inactive_file:176kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:23156kB slab_unreclaimable:238368kB kernel_stack:4928kB pagetables:5428kB bounce:0kB free_pcp:1336kB local_pcp:624kB 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 5384 176 17 3 0 -1000 udevd [ 584] 0 584 5383 181 16 3 0 -1000 udevd [ 588] 0 588 5812 594 16 3 0 -1000 udevd [ 1767] 0 1767 2492 574 8 3 0 0 dhclient [ 1908] 0 1908 14264 109 23 3 0 0 rsyslogd [ 1963] 0 1963 4724 51 15 3 0 0 cron [ 1981] 0 1981 3734 44 11 4 0 0 mcstransd [ 1983] 0 1983 12926 1231 27 3 0 0 restorecond [ 2009] 0 2009 12489 153 28 3 0 -1000 sshd [ 2039] 0 2039 3648 40 13 3 0 0 getty [ 2055] 0 2055 17820 196 39 3 0 0 sshd [ 2057] 0 2057 109922 76354 178 5 0 0 syz-fuzzer [ 2109] 0 2109 18112 15 22 3 0 0 syz-executor.0 [ 2110] 0 2110 18112 17 23 3 0 0 syz-executor.5 [ 2111] 0 2111 18112 15 23 3 0 0 syz-executor.1 [ 2112] 0 2112 18112 15 23 3 0 0 syz-executor.3 [ 2113] 0 2113 18112 17 23 3 0 0 syz-executor.4 [ 2114] 0 2114 18112 16 22 3 0 0 syz-executor.2 [ 2115] 0 2115 18111 8736 23 4 0 0 syz-executor.0 [ 2116] 0 2116 18111 8739 24 4 0 0 syz-executor.5 [ 2120] 0 2120 18111 8735 24 4 0 0 syz-executor.3 [ 2122] 0 2122 18111 8736 24 4 0 0 syz-executor.1 [ 2124] 0 2124 18111 8737 24 4 0 0 syz-executor.4 [ 2127] 0 2127 18111 8738 23 4 0 0 syz-executor.2 [ 3063] 0 3063 5383 177 16 3 0 -1000 udevd [ 3080] 0 3080 5383 177 16 3 0 -1000 udevd [ 3249] 0 3249 18144 8714 25 3 0 1000 syz-executor.4 [ 3262] 0 3262 18144 8715 24 3 0 1000 syz-executor.2 [ 3274] 0 3274 18177 8718 24 3 0 1000 syz-executor.2 [ 3307] 0 3307 18177 8718 24 3 0 1000 syz-executor.2 [ 3326] 0 3326 18144 8714 25 3 0 1000 syz-executor.4 [ 3341] 0 3341 18210 8721 25 3 0 1000 syz-executor.2 [ 3484] 0 3484 18144 8718 24 3 0 1000 syz-executor.2 [ 3489] 0 3489 18210 8722 25 3 0 1000 syz-executor.2 [ 3508] 0 3508 18144 8718 24 3 0 1000 syz-executor.2