lowmemorykiller: Killing 'syz-executor155' (2057) (tgid 2057), adj 1000, to free 40kB on behalf of 'syz-executor155' (2062) because cache 33932kB is below limit 65536kB for oom_score_adj 12 Free memory is -13472kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:903 in_atomic(): 0, irqs_disabled(): 0, pid: 2062, name: syz-executor155 2 locks held by syz-executor155/2062: #0: (shrinker_rwsem){++++..}, at: [<000000004de3406c>] shrink_slab.part.0+0xb2/0xa20 mm/vmscan.c:472 #1: (rcu_read_lock){......}, at: [<000000003cc2339c>] lowmem_scan+0x242/0xb50 drivers/staging/android/lowmemorykiller.c:272 Preemption disabled at: [<000000006973bb99>] spin_lock include/linux/spinlock.h:302 [inline] [<000000006973bb99>] task_lock include/linux/sched.h:3217 [inline] [<000000006973bb99>] get_task_mm+0x20/0xc0 kernel/fork.c:1010 CPU: 0 PID: 2062 Comm: syz-executor155 Not tainted 4.9.184+ #6 ffff8801ce4c7380 ffffffff81b580a1 0000000000000000 0000000000000001 ffff8801cfacaf80 ffffffff810d0ca0 ffff8801cfacaf80 ffff8801ce4c73b8 ffffffff8140040c ffff8801cfacaf80 ffffffff82a39900 0000000000000387 Call Trace: [<00000000f0219cd0>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000f0219cd0>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000003c658081>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000017d1bef>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<000000005ff92623>] mmput+0x28/0x370 kernel/fork.c:903 [<0000000088b13290>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000dad6dfde>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<00000000f8664140>] do_shrink_slab mm/vmscan.c:399 [inline] [<00000000f8664140>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000001a883b7a>] shrink_slab mm/vmscan.c:466 [inline] [<000000001a883b7a>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<0000000001ed21e1>] shrink_zones mm/vmscan.c:2751 [inline] [<0000000001ed21e1>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<0000000001ed21e1>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<00000000958ffbdf>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<00000000958ffbdf>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<00000000958ffbdf>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<00000000958ffbdf>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<00000000b1083f6e>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000b1083f6e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000b1083f6e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000b1083f6e>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<00000000b1083f6e>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<00000000234f0d78>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000234f0d78>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000234f0d78>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000a428be49>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000000ecf268c>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000001a52baed>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000c7860754>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000c7860754>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<00000000e2fca615>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<00000000e2fca615>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000045f7365e>] tcp_setsockopt net/ipv4/tcp.c:2757 [inline] [<0000000045f7365e>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2751 [<000000004e931b79>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<000000002bcc3038>] SYSC_setsockopt net/socket.c:1786 [inline] [<000000002bcc3038>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<0000000060e2648b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e23ab8e3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb ================================= [ INFO: inconsistent lock state ] 4.9.184+ #6 Tainted: G W --------------------------------- inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-R} usage. syz-executor155/2062 [HC0[0]:SC0[0]:HE1:SE1] takes: (&mm->mmap_sem){+++++?}, at: [<00000000683fe1c7>] 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:1601 [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: 543407 hardirqs last enabled at (543407): [<000000008e52a8e2>] restore_regs_and_iret+0x0/0x1d hardirqs last disabled at (543406): [<00000000a6290a64>] call_function_single_interrupt+0x98/0xb0 arch/x86/entry/entry_64.S:671 softirqs last enabled at (542222): [<000000002a8c146e>] spin_unlock_bh include/linux/spinlock.h:352 [inline] softirqs last enabled at (542222): [<000000002a8c146e>] wb_queue_work+0x1ed/0x450 fs/fs-writeback.c:203 softirqs last disabled at (542216): [<0000000006526c1e>] spin_lock_bh include/linux/spinlock.h:307 [inline] softirqs last disabled at (542216): [<0000000006526c1e>] 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-executor155/2062: #0: (shrinker_rwsem){++++..}, at: [<000000004de3406c>] shrink_slab.part.0+0xb2/0xa20 mm/vmscan.c:472 #1: (rcu_read_lock){......}, at: [<000000003cc2339c>] lowmem_scan+0x242/0xb50 drivers/staging/android/lowmemorykiller.c:272 #2: (lmk_event_lock){+.+.-.}, at: [<000000004859f647>] spin_lock include/linux/spinlock.h:302 [inline] #2: (lmk_event_lock){+.+.-.}, at: [<000000004859f647>] handle_lmk_event+0xfb/0x8a0 drivers/staging/android/lowmemorykiller.c:114 stack backtrace: CPU: 0 PID: 2062 Comm: syz-executor155 Tainted: G W 4.9.184+ #6 ffff8801ce4c70c0 ffffffff81b580a1 00000000000000f0 ffff8801cfacaf80 ffffffff83cad910 ffff8801cfacb8c8 ffffffff8424eec0 ffff8801ce4c7138 ffffffff81406e49 0000000000000000 ffffffff00000001 0000000000000001 Call Trace: [<00000000f0219cd0>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000f0219cd0>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000cc8691ac>] print_usage_bug kernel/locking/lockdep.c:2387 [inline] [<00000000cc8691ac>] print_usage_bug.cold+0x452/0x5a2 kernel/locking/lockdep.c:2354 [<000000002c9acdf7>] valid_state kernel/locking/lockdep.c:2400 [inline] [<000000002c9acdf7>] mark_lock_irq kernel/locking/lockdep.c:2602 [inline] [<000000002c9acdf7>] mark_lock+0x6c7/0x12e0 kernel/locking/lockdep.c:3065 [<000000005f6d9e7d>] mark_irqflags kernel/locking/lockdep.c:2958 [inline] [<000000005f6d9e7d>] __lock_acquire+0x5c3/0x4350 kernel/locking/lockdep.c:3302 [<0000000018c8107a>] lock_acquire+0x133/0x3d0 kernel/locking/lockdep.c:3756 [<000000001a1fc0b5>] down_read+0x44/0xb0 kernel/locking/rwsem.c:22 [<00000000683fe1c7>] get_cmdline+0xa3/0x2d0 mm/util.c:641 [<0000000007a62c4d>] handle_lmk_event+0x13c/0x8a0 drivers/staging/android/lowmemorykiller.c:128 [<00000000dad6dfde>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<00000000f8664140>] do_shrink_slab mm/vmscan.c:399 [inline] [<00000000f8664140>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000001a883b7a>] shrink_slab mm/vmscan.c:466 [inline] [<000000001a883b7a>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<0000000001ed21e1>] shrink_zones mm/vmscan.c:2751 [inline] [<0000000001ed21e1>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<0000000001ed21e1>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<00000000958ffbdf>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<00000000958ffbdf>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<00000000958ffbdf>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<00000000958ffbdf>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<00000000b1083f6e>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000b1083f6e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000b1083f6e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000b1083f6e>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<00000000b1083f6e>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<00000000234f0d78>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000234f0d78>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000234f0d78>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000a428be49>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000000ecf268c>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000001a52baed>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000c7860754>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000c7860754>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<00000000e2fca615>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<00000000e2fca615>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000045f7365e>] tcp_setsockopt net/ipv4/tcp.c:2757 [inline] [<0000000045f7365e>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2751 [<000000004e931b79>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<000000002bcc3038>] SYSC_setsockopt net/socket.c:1786 [inline] [<000000002bcc3038>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<0000000060e2648b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e23ab8e3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb oom_reaper: reaped process 2057 (syz-executor155), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB syz-executor155 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 CPU: 0 PID: 2064 Comm: syz-executor155 Tainted: G W 4.9.184+ #6 ffff8801ce4a76a8 ffffffff81b580a1 ffff8801ce4a7a00 ffffffff833f0b30 00000000000003e8 ffff8801ce4a7a18 0000000000000000 ffff8801ce4a7728 ffffffff815055db 0000000000000000 00000000000003e8 ffffffff8281a285 Call Trace: [<00000000f0219cd0>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000f0219cd0>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000ed28975a>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000665b1d10>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000996faf5f>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000996faf5f>] out_of_memory+0x29b/0xeb0 mm/oom_kill.c:1009 [<0000000057a6167b>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<0000000057a6167b>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<0000000057a6167b>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<00000000b1083f6e>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000b1083f6e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000b1083f6e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000b1083f6e>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<00000000b1083f6e>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<00000000234f0d78>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000234f0d78>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000234f0d78>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000a428be49>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000000ecf268c>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000001a52baed>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000c7860754>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000c7860754>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<00000000e2fca615>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<00000000e2fca615>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000045f7365e>] tcp_setsockopt net/ipv4/tcp.c:2757 [inline] [<0000000045f7365e>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2751 [<000000004e931b79>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<000000002bcc3038>] SYSC_setsockopt net/socket.c:1786 [inline] [<000000002bcc3038>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<0000000060e2648b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e23ab8e3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:3620 inactive_anon:40 isolated_anon:0 active_file:7 inactive_file:18 isolated_file:0 unevictable:0 dirty:0 writeback:9 unstable:0 slab_reclaimable:4253 slab_unreclaimable:56832 mapped:12 shmem:48 pagetables:357 bounce:0 free:6014 free_pcp:68 free_cma:0 Node 0 active_anon:14480kB inactive_anon:160kB active_file:28kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:48kB dirty:0kB writeback:36kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:15 all_unreclaimable? no DMA32 free:18608kB 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:120kB local_pcp:120kB free_cma:0kB Normal free:5448kB min:5580kB low:9168kB high:12756kB active_anon:14480kB inactive_anon:160kB active_file:28kB inactive_file:72kB unevictable:0kB writepending:36kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17012kB slab_unreclaimable:227328kB kernel_stack:3424kB pagetables:1428kB bounce:0kB free_pcp:152kB local_pcp:152kB free_cma:0kB DMA32: 3*4kB (UM) 1*8kB (M) 1*16kB (M) 1*32kB (U) 2*64kB (M) 4*128kB (UM) 4*256kB (UM) 1*512kB (M) 2*1024kB (M) 1*2048kB (M) 3*4096kB (M) = 18628kB 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 5402 190 16 3 0 -1000 udevd [ 585] 0 585 5746 537 16 3 0 -1000 udevd [ 586] 0 586 5383 178 15 3 0 -1000 udevd [ 1763] 0 1763 2492 573 8 3 0 0 dhclient [ 1896] 0 1896 14264 108 23 4 0 0 rsyslogd [ 1951] 0 1951 3735 45 11 3 0 0 mcstransd [ 1953] 0 1953 4724 51 16 3 0 0 cron [ 1971] 0 1971 12926 1227 26 3 0 0 restorecond [ 1997] 0 1997 12489 152 27 3 0 -1000 sshd [ 2027] 0 2027 3648 38 12 3 0 0 getty [ 2046] 0 2046 3648 43 13 3 0 0 getty [ 2047] 0 2047 3648 43 13 3 0 0 getty [ 2048] 0 2048 3648 44 13 3 0 0 getty [ 2049] 0 2049 3648 42 13 3 0 0 getty [ 2050] 0 2050 3648 43 13 3 0 0 getty [ 2051] 0 2051 3648 41 13 3 0 0 getty [ 2052] 0 2052 17820 197 40 3 0 0 sshd [ 2054] 0 2054 4380 1 4 2 0 0 syz-executor155 [ 2055] 0 2055 4380 10 4 2 0 0 syz-executor155 [ 2056] 0 2056 4380 10 4 2 0 0 syz-executor155 [ 2057] 0 2057 4380 0 5 2 0 1000 syz-executor155 [ 2058] 0 2058 4380 10 4 2 0 0 syz-executor155 [ 2059] 0 2059 4380 10 4 2 0 0 syz-executor155 [ 2060] 0 2060 4380 10 4 2 0 0 syz-executor155 [ 2061] 0 2061 4380 10 4 2 0 0 syz-executor155 [ 2062] 0 2062 4380 10 5 2 0 1000 syz-executor155 [ 2063] 0 2063 4380 10 5 2 0 1000 syz-executor155 [ 2064] 0 2064 4380 10 5 2 0 1000 syz-executor155 [ 2065] 0 2065 4380 10 5 2 0 1000 syz-executor155 [ 2066] 0 2066 4380 10 5 2 0 1000 syz-executor155 Out of memory: Kill process 2062 (syz-executor155) score 999 or sacrifice child Killed process 2062 (syz-executor155) total-vm:17520kB, anon-rss:40kB, file-rss:0kB, shmem-rss:0kB syz-executor155: vmalloc: allocation failure, allocated 1187565568 of 4278198272 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 2057 Comm: syz-executor155 Tainted: G W 4.9.184+ #6 ffff8801ce55f980 ffffffff81b580a1 1ffff10039cabf32 dffffc0000000000 ffffffff82aaa940 0000000000000000 0000000000400000 ffff8801ce55faa8 ffffffff81506893 0000000041b58ab3 ffffffff82e3a0f8 ffffffff81430460 Call Trace: [<00000000f0219cd0>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000f0219cd0>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000896f1898>] warn_alloc.cold+0x76/0x93 mm/page_alloc.c:3069 [<000000004bb7b253>] __vmalloc_area_node mm/vmalloc.c:1665 [inline] [<000000004bb7b253>] __vmalloc_node_range+0x3ff/0x610 mm/vmalloc.c:1706 [<00000000234f0d78>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000234f0d78>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000234f0d78>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000a428be49>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000000ecf268c>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000001a52baed>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000c7860754>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000c7860754>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<00000000e2fca615>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<00000000e2fca615>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000045f7365e>] tcp_setsockopt net/ipv4/tcp.c:2757 [inline] [<0000000045f7365e>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2751 [<000000004e931b79>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<000000002bcc3038>] SYSC_setsockopt net/socket.c:1786 [inline] [<000000002bcc3038>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<0000000060e2648b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e23ab8e3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:3612 inactive_anon:40 isolated_anon:0 active_file:4 inactive_file:18 isolated_file:0 unevictable:0 dirty:0 writeback:9 unstable:0 slab_reclaimable:4253 slab_unreclaimable:56832 mapped:12 shmem:48 pagetables:357 bounce:0 free:4 free_pcp:0 free_cma:0 Node 0 active_anon:14448kB inactive_anon:160kB active_file:16kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:48kB dirty:0kB writeback:36kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:24kB min:5580kB low:9168kB high:12756kB active_anon:14448kB inactive_anon:160kB active_file:16kB inactive_file:72kB unevictable:0kB writepending:36kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17012kB slab_unreclaimable:227328kB kernel_stack:3424kB pagetables:1428kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB syz-executor155: vmalloc: allocation failure, allocated 1098629120 of 4278198272 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 2062 Comm: syz-executor155 Tainted: G W 4.9.184+ #6 ffff8801ce4c7980 ffffffff81b580a1 1ffff10039c98f32 dffffc0000000000 ffffffff82aaa940 0000000000000000 0000000000400000 ffff8801ce4c7aa8 ffffffff81506893 0000000041b58ab3 ffffffff82e3a0f8 ffffffff81430460 Call Trace: [<00000000f0219cd0>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000f0219cd0>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000896f1898>] warn_alloc.cold+0x76/0x93 mm/page_alloc.c:3069 [<000000004bb7b253>] __vmalloc_area_node mm/vmalloc.c:1665 [inline] [<000000004bb7b253>] __vmalloc_node_range+0x3ff/0x610 mm/vmalloc.c:1706 [<00000000234f0d78>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000234f0d78>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000234f0d78>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000a428be49>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000000ecf268c>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000001a52baed>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000c7860754>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000c7860754>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<00000000e2fca615>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<00000000e2fca615>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000045f7365e>] tcp_setsockopt net/ipv4/tcp.c:2757 [inline] [<0000000045f7365e>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2751 [<000000004e931b79>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<000000002bcc3038>] SYSC_setsockopt net/socket.c:1786 [inline] [<000000002bcc3038>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<0000000060e2648b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e23ab8e3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:3612 inactive_anon:40 isolated_anon:0 active_file:4 inactive_file:18 isolated_file:0 unevictable:0 dirty:0 writeback:9 unstable:0 slab_reclaimable:4253 slab_unreclaimable:56832 mapped:12 shmem:48 pagetables:357 bounce:0 free:4 free_pcp:0 free_cma:0 Node 0 active_anon:14448kB inactive_anon:160kB active_file:16kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:48kB dirty:0kB writeback:36kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:24kB min:5580kB low:9168kB high:12756kB active_anon:14448kB inactive_anon:160kB active_file:16kB inactive_file:72kB unevictable:0kB writepending:36kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17012kB slab_unreclaimable:227328kB kernel_stack:3424kB pagetables:1428kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313625 pages reserved oom_reaper: reaped process 2062 (syz-executor155), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB Normal: 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-executor155 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 CPU: 0 PID: 2066 Comm: syz-executor155 Tainted: G W 4.9.184+ #6 ffff8801c3b4f6a8 ffffffff81b580a1 ffff8801c3b4fa00 ffffffff833f0b30 00000000000003e8 ffff8801c3b4fa18 0000000000000000 ffff8801c3b4f728 ffffffff815055db 0000000000000000 00000000000003e8 ffffffff8281a285 Call Trace: [<00000000f0219cd0>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000f0219cd0>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000ed28975a>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000665b1d10>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000996faf5f>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000996faf5f>] out_of_memory+0x29b/0xeb0 mm/oom_kill.c:1009 [<0000000057a6167b>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<0000000057a6167b>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<0000000057a6167b>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<00000000b1083f6e>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000b1083f6e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000b1083f6e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000b1083f6e>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<00000000b1083f6e>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<00000000234f0d78>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000234f0d78>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000234f0d78>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000a428be49>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000000ecf268c>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000001a52baed>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000c7860754>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000c7860754>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<00000000e2fca615>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<00000000e2fca615>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000045f7365e>] tcp_setsockopt net/ipv4/tcp.c:2757 [inline] [<0000000045f7365e>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2751 [<000000004e931b79>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<000000002bcc3038>] SYSC_setsockopt net/socket.c:1786 [inline] [<000000002bcc3038>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<0000000060e2648b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e23ab8e3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:3612 inactive_anon:40 isolated_anon:0 active_file:4 inactive_file:18 isolated_file:0 unevictable:0 dirty:0 writeback:9 unstable:0 slab_reclaimable:4253 slab_unreclaimable:56832 mapped:12 shmem:48 pagetables:357 bounce:0 free:4 free_pcp:8 free_cma:0 Node 0 active_anon:14448kB inactive_anon:160kB active_file:16kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:48kB dirty:0kB writeback:36kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:24kB min:5580kB low:9168kB high:12756kB active_anon:14448kB inactive_anon:160kB active_file:16kB inactive_file:72kB unevictable:0kB writepending:36kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17012kB slab_unreclaimable:227328kB kernel_stack:3424kB pagetables:1428kB bounce:0kB free_pcp:32kB local_pcp:32kB 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 5402 190 16 3 0 -1000 udevd [ 585] 0 585 5746 537 16 3 0 -1000 udevd [ 586] 0 586 5383 178 15 3 0 -1000 udevd [ 1763] 0 1763 2492 573 8 3 0 0 dhclient [ 1896] 0 1896 14264 108 23 4 0 0 rsyslogd [ 1951] 0 1951 3735 45 11 3 0 0 mcstransd [ 1953] 0 1953 4724 51 16 3 0 0 cron [ 1971] 0 1971 12926 1227 26 3 0 0 restorecond [ 1997] 0 1997 12489 152 27 3 0 -1000 sshd [ 2027] 0 2027 3648 38 12 3 0 0 getty [ 2046] 0 2046 3648 43 13 3 0 0 getty [ 2047] 0 2047 3648 43 13 3 0 0 getty [ 2048] 0 2048 3648 44 13 3 0 0 getty [ 2049] 0 2049 3648 42 13 3 0 0 getty [ 2050] 0 2050 3648 43 13 3 0 0 getty [ 2051] 0 2051 3648 41 13 3 0 0 getty [ 2052] 0 2052 17820 197 40 3 0 0 sshd [ 2054] 0 2054 4380 1 4 2 0 0 syz-executor155 [ 2055] 0 2055 4380 10 4 2 0 0 syz-executor155 [ 2056] 0 2056 4380 10 4 2 0 0 syz-executor155 [ 2057] 0 2057 4380 0 5 2 0 1000 syz-executor155 [ 2058] 0 2058 4380 10 4 2 0 0 syz-executor155 [ 2059] 0 2059 4380 10 4 2 0 0 syz-executor155 [ 2060] 0 2060 4380 10 4 2 0 0 syz-executor155 [ 2061] 0 2061 4380 10 4 2 0 0 syz-executor155 [ 2062] 0 2062 4380 0 5 2 0 1000 syz-executor155 [ 2063] 0 2063 4380 10 5 2 0 1000 syz-executor155 [ 2064] 0 2064 4380 10 5 2 0 1000 syz-executor155 [ 2065] 0 2065 4380 10 5 2 0 1000 syz-executor155 [ 2066] 0 2066 4380 10 5 2 0 1000 syz-executor155 Out of memory: Kill process 2063 (syz-executor155) score 999 or sacrifice child Killed process 2063 (syz-executor155) total-vm:17520kB, anon-rss:40kB, file-rss:0kB, shmem-rss:0kB syz-executor155: vmalloc: allocation failure, allocated 1151434752 of 4278198272 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 1 PID: 2063 Comm: syz-executor155 Tainted: G W 4.9.184+ #6 ffff8801ce4b7980 ffffffff81b580a1 1ffff10039c96f32 dffffc0000000000 ffffffff82aaa940 0000000000000000 0000000000400000 ffff8801ce4b7aa8 ffffffff81506893 0000000041b58ab3 ffffffff82e3a0f8 ffffffff81430460 Call Trace: [<00000000f0219cd0>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000f0219cd0>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000896f1898>] warn_alloc.cold+0x76/0x93 mm/page_alloc.c:3069 [<000000004bb7b253>] __vmalloc_area_node mm/vmalloc.c:1665 [inline] [<000000004bb7b253>] __vmalloc_node_range+0x3ff/0x610 mm/vmalloc.c:1706 [<00000000234f0d78>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000234f0d78>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000234f0d78>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000a428be49>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000000ecf268c>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000001a52baed>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000c7860754>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000c7860754>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<00000000e2fca615>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<00000000e2fca615>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000045f7365e>] tcp_setsockopt net/ipv4/tcp.c:2757 [inline] [<0000000045f7365e>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2751 [<000000004e931b79>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<000000002bcc3038>] SYSC_setsockopt net/socket.c:1786 [inline] [<000000002bcc3038>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<0000000060e2648b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e23ab8e3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:3612 inactive_anon:40 isolated_anon:0 active_file:4 inactive_file:18 isolated_file:0 unevictable:0 dirty:0 writeback:9 unstable:0 slab_reclaimable:4253 slab_unreclaimable:56832 mapped:12 shmem:48 pagetables:357 bounce:0 free:4 free_pcp:8 free_cma:0 Node 0 active_anon:14448kB inactive_anon:160kB active_file:16kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:48kB dirty:0kB writeback:36kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:24kB min:5580kB low:9168kB high:12756kB active_anon:14448kB inactive_anon:160kB active_file:16kB inactive_file:72kB unevictable:0kB writepending:36kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17012kB slab_unreclaimable:227328kB kernel_stack:3424kB pagetables:1428kB bounce:0kB free_pcp:32kB 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 oom_reaper: reaped process 2063 (syz-executor155), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB ODEBUG: Out of memory. ODEBUG disabled lowmemorykiller: Killing 'syz-executor155' (2064) (tgid 2064), adj 1000, to free 40kB on behalf of 'syz-executor155' (2069) because cache 2128kB is below limit 6144kB for oom_score_adj 0 Free memory is -13424kB above reserved BUG: sleeping function called from invalid context at kernel/fork.c:903 in_atomic(): 0, irqs_disabled(): 0, pid: 2069, name: syz-executor155 INFO: lockdep is turned off. Preemption disabled at: [<000000006973bb99>] spin_lock include/linux/spinlock.h:302 [inline] [<000000006973bb99>] task_lock include/linux/sched.h:3217 [inline] [<000000006973bb99>] get_task_mm+0x20/0xc0 kernel/fork.c:1010 CPU: 1 PID: 2069 Comm: syz-executor155 Tainted: G W 4.9.184+ #6 ffff8801c3617380 ffffffff81b580a1 0000000000000000 0000000000000001 ffff8801cf9e2f80 ffffffff810d0ca0 ffff8801cf9e2f80 ffff8801c36173b8 ffffffff8140040c ffff8801cf9e2f80 ffffffff82a39900 0000000000000387 Call Trace: [<00000000f0219cd0>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000f0219cd0>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000003c658081>] ___might_sleep.cold+0x1c1/0x1fa kernel/sched/core.c:8004 [<00000000017d1bef>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7961 [<000000005ff92623>] mmput+0x28/0x370 kernel/fork.c:903 [<0000000088b13290>] handle_lmk_event+0xea/0x8a0 drivers/staging/android/lowmemorykiller.c:111 [<00000000dad6dfde>] lowmem_scan+0x695/0xb50 drivers/staging/android/lowmemorykiller.c:345 [<00000000f8664140>] do_shrink_slab mm/vmscan.c:399 [inline] [<00000000f8664140>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<000000001a883b7a>] shrink_slab mm/vmscan.c:466 [inline] [<000000001a883b7a>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<0000000001ed21e1>] shrink_zones mm/vmscan.c:2751 [inline] [<0000000001ed21e1>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<0000000001ed21e1>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<00000000958ffbdf>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<00000000958ffbdf>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<00000000958ffbdf>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<00000000958ffbdf>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<00000000b1083f6e>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000b1083f6e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000b1083f6e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000b1083f6e>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<00000000b1083f6e>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<00000000234f0d78>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000234f0d78>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000234f0d78>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000a428be49>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000000ecf268c>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000001a52baed>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000c7860754>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000c7860754>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<00000000e2fca615>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<00000000e2fca615>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000045f7365e>] tcp_setsockopt net/ipv4/tcp.c:2757 [inline] [<0000000045f7365e>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2751 [<000000004e931b79>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<000000002bcc3038>] SYSC_setsockopt net/socket.c:1786 [inline] [<000000002bcc3038>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<0000000060e2648b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e23ab8e3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb oom_reaper: reaped process 2064 (syz-executor155), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB syz-executor155 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 CPU: 0 PID: 2068 Comm: syz-executor155 Tainted: G W 4.9.184+ #6 ffff8801ce4c76a8 ffffffff81b580a1 ffff8801ce4c7a00 ffffffff833f0b30 00000000000003e8 ffff8801ce4c7a18 0000000000000000 ffff8801ce4c7728 ffffffff815055db 0000000000000000 00000000000003e8 ffffffff8281a285 Call Trace: [<00000000f0219cd0>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000f0219cd0>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000ed28975a>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000665b1d10>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000996faf5f>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000996faf5f>] out_of_memory+0x29b/0xeb0 mm/oom_kill.c:1009 [<0000000057a6167b>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<0000000057a6167b>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<0000000057a6167b>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<00000000b1083f6e>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000b1083f6e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000b1083f6e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000b1083f6e>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<00000000b1083f6e>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<00000000234f0d78>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000234f0d78>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000234f0d78>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000a428be49>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000000ecf268c>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000001a52baed>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000c7860754>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000c7860754>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<00000000e2fca615>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<00000000e2fca615>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000045f7365e>] tcp_setsockopt net/ipv4/tcp.c:2757 [inline] [<0000000045f7365e>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2751 [<000000004e931b79>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<000000002bcc3038>] SYSC_setsockopt net/socket.c:1786 [inline] [<000000002bcc3038>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<0000000060e2648b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e23ab8e3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:3619 inactive_anon:40 isolated_anon:0 active_file:13 inactive_file:51 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4253 slab_unreclaimable:56715 mapped:37 shmem:48 pagetables:357 bounce:0 free:6029 free_pcp:68 free_cma:0 Node 0 active_anon:14476kB inactive_anon:160kB active_file:52kB inactive_file:204kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:148kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:29 all_unreclaimable? no DMA32 free:18612kB 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:120kB local_pcp:120kB free_cma:0kB Normal free:5504kB min:5580kB low:9168kB high:12756kB active_anon:14476kB inactive_anon:160kB active_file:52kB inactive_file:204kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17012kB slab_unreclaimable:226860kB kernel_stack:3424kB pagetables:1428kB bounce:0kB free_pcp:152kB local_pcp:152kB free_cma:0kB DMA32: 2*4kB (UM) 2*8kB (UM) 1*16kB (U) 1*32kB (U) 2*64kB (UM) 2*128kB (M) 3*256kB (UM) 0*512kB 1*1024kB (M) 0*2048kB 4*4096kB (U) = 18632kB 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 5402 190 16 3 0 -1000 udevd [ 585] 0 585 5746 537 16 3 0 -1000 udevd [ 586] 0 586 5383 178 15 3 0 -1000 udevd [ 1763] 0 1763 2492 573 8 3 0 0 dhclient [ 1896] 0 1896 14264 108 23 4 0 0 rsyslogd [ 1951] 0 1951 3735 45 11 3 0 0 mcstransd [ 1953] 0 1953 4724 51 16 3 0 0 cron [ 1971] 0 1971 12926 1227 26 3 0 0 restorecond [ 1997] 0 1997 12489 152 27 3 0 -1000 sshd [ 2027] 0 2027 3648 38 12 3 0 0 getty [ 2046] 0 2046 3648 43 13 3 0 0 getty [ 2047] 0 2047 3648 43 13 3 0 0 getty [ 2048] 0 2048 3648 44 13 3 0 0 getty [ 2049] 0 2049 3648 42 13 3 0 0 getty [ 2050] 0 2050 3648 43 13 3 0 0 getty [ 2051] 0 2051 3648 41 13 3 0 0 getty [ 2052] 0 2052 17820 197 40 3 0 0 sshd [ 2054] 0 2054 4380 1 4 2 0 0 syz-executor155 [ 2055] 0 2055 4380 10 4 2 0 0 syz-executor155 [ 2056] 0 2056 4380 10 4 2 0 0 syz-executor155 [ 2058] 0 2058 4380 10 4 2 0 0 syz-executor155 [ 2059] 0 2059 4380 10 4 2 0 0 syz-executor155 [ 2060] 0 2060 4380 10 4 2 0 0 syz-executor155 [ 2061] 0 2061 4380 10 4 2 0 0 syz-executor155 [ 2064] 0 2064 4380 0 5 2 0 1000 syz-executor155 [ 2065] 0 2065 4380 10 5 2 0 1000 syz-executor155 [ 2066] 0 2066 4380 10 5 2 0 1000 syz-executor155 [ 2067] 0 2067 4380 10 5 2 0 1000 syz-executor155 [ 2068] 0 2068 4380 10 5 2 0 1000 syz-executor155 [ 2069] 0 2069 4380 10 5 2 0 1000 syz-executor155 Out of memory: Kill process 2065 (syz-executor155) score 999 or sacrifice child Killed process 2065 (syz-executor155) total-vm:17520kB, anon-rss:40kB, file-rss:0kB, shmem-rss:0kB syz-executor155: vmalloc: allocation failure, allocated 873828352 of 4278198272 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 2065 Comm: syz-executor155 Tainted: G W 4.9.184+ #6 ffff8801c3a4f980 ffffffff81b580a1 1ffff10038749f32 dffffc0000000000 ffffffff82aaa940 0000000000000000 0000000000400000 ffff8801c3a4faa8 ffffffff81506893 0000000041b58ab3 ffffffff82e3a0f8 ffffffff81430460 Call Trace: [<00000000f0219cd0>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000f0219cd0>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000896f1898>] warn_alloc.cold+0x76/0x93 mm/page_alloc.c:3069 [<000000004bb7b253>] __vmalloc_area_node mm/vmalloc.c:1665 [inline] [<000000004bb7b253>] __vmalloc_node_range+0x3ff/0x610 mm/vmalloc.c:1706 [<00000000234f0d78>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000234f0d78>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000234f0d78>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000a428be49>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000000ecf268c>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000001a52baed>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000c7860754>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000c7860754>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<00000000e2fca615>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<00000000e2fca615>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000045f7365e>] tcp_setsockopt net/ipv4/tcp.c:2757 [inline] [<0000000045f7365e>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2751 [<000000004e931b79>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<000000002bcc3038>] SYSC_setsockopt net/socket.c:1786 [inline] [<000000002bcc3038>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<0000000060e2648b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e23ab8e3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:3619 inactive_anon:40 isolated_anon:0 active_file:13 inactive_file:51 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4253 slab_unreclaimable:56715 mapped:37 shmem:48 pagetables:357 bounce:0 free:21 free_pcp:0 free_cma:0 Node 0 active_anon:14476kB inactive_anon:160kB active_file:52kB inactive_file:204kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:148kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:8kB 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:76kB min:5580kB low:9168kB high:12756kB active_anon:14476kB inactive_anon:160kB active_file:52kB inactive_file:204kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17012kB slab_unreclaimable:226860kB kernel_stack:3424kB pagetables:1428kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313625 pages reserved oom_reaper: reaped process 2065 (syz-executor155), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB syz-executor155: vmalloc: allocation failure, allocated 1081655296 of 4278198272 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 2064 Comm: syz-executor155 Tainted: G W 4.9.184+ #6 ffff8801ce4a7980 ffffffff81b580a1 1ffff10039c94f32 dffffc0000000000 ffffffff82aaa940 0000000000000000 0000000000400000 ffff8801ce4a7aa8 ffffffff81506893 0000000041b58ab3 ffffffff82e3a0f8 ffffffff81430460 Call Trace: [<00000000f0219cd0>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000f0219cd0>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000896f1898>] warn_alloc.cold+0x76/0x93 mm/page_alloc.c:3069 [<000000004bb7b253>] __vmalloc_area_node mm/vmalloc.c:1665 [inline] [<000000004bb7b253>] __vmalloc_node_range+0x3ff/0x610 mm/vmalloc.c:1706 [<00000000234f0d78>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000234f0d78>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000234f0d78>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000a428be49>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000000ecf268c>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000001a52baed>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000c7860754>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000c7860754>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<00000000e2fca615>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<00000000e2fca615>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000045f7365e>] tcp_setsockopt net/ipv4/tcp.c:2757 [inline] [<0000000045f7365e>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2751 [<000000004e931b79>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<000000002bcc3038>] SYSC_setsockopt net/socket.c:1786 [inline] [<000000002bcc3038>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<0000000060e2648b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e23ab8e3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:3619 inactive_anon:40 isolated_anon:0 active_file:13 inactive_file:25 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4253 slab_unreclaimable:56715 mapped:37 shmem:48 pagetables:357 bounce:0 free:2 free_pcp:21 free_cma:0 Node 0 active_anon:14476kB inactive_anon:160kB active_file:52kB inactive_file:100kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:148kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:8kB 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:0kB min:5580kB low:9168kB high:12756kB active_anon:14476kB inactive_anon:160kB active_file:52kB inactive_file:100kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17012kB slab_unreclaimable:226860kB kernel_stack:3424kB pagetables:1428kB bounce:0kB free_pcp:84kB local_pcp:52kB 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 lowmemorykiller: Killing 'syz-executor155' (2066) (tgid 2066), adj 1000, to free 40kB on behalf of 'syz-executor155' (2071) because cache 2224kB is below limit 6144kB for oom_score_adj 0 Free memory is -13364kB above reserved oom_reaper: reaped process 2066 (syz-executor155), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB syz-executor155 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 2070 Comm: syz-executor155 Tainted: G W 4.9.184+ #6 ffff8800545e76a8 ffffffff81b580a1 ffff8800545e7a00 ffffffff833f0b30 00000000000003e8 ffff8800545e7a18 0000000000000000 ffff8800545e7728 ffffffff815055db 0000000000000000 00000000000003e8 ffffffff8281a285 Call Trace: [<00000000f0219cd0>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000f0219cd0>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000ed28975a>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000665b1d10>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000996faf5f>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000996faf5f>] out_of_memory+0x29b/0xeb0 mm/oom_kill.c:1009 [<0000000057a6167b>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<0000000057a6167b>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<0000000057a6167b>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<00000000b1083f6e>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000b1083f6e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000b1083f6e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000b1083f6e>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<00000000b1083f6e>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<00000000234f0d78>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000234f0d78>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000234f0d78>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000a428be49>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000000ecf268c>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000001a52baed>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000c7860754>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000c7860754>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<00000000e2fca615>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<00000000e2fca615>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000045f7365e>] tcp_setsockopt net/ipv4/tcp.c:2757 [inline] [<0000000045f7365e>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2751 [<000000004e931b79>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<000000002bcc3038>] SYSC_setsockopt net/socket.c:1786 [inline] [<000000002bcc3038>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<0000000060e2648b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e23ab8e3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:3613 inactive_anon:40 isolated_anon:0 active_file:5 inactive_file:30 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4254 slab_unreclaimable:56723 mapped:15 shmem:48 pagetables:357 bounce:0 free:6042 free_pcp:64 free_cma:0 Node 0 active_anon:14452kB inactive_anon:160kB active_file:20kB inactive_file:120kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:60kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:18676kB min:4696kB low:7712kB high:10728kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:96kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:32kB kernel_stack:64kB pagetables:20kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB Normal free:5492kB min:5580kB low:9168kB high:12756kB active_anon:14420kB inactive_anon:160kB active_file:68kB inactive_file:24kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17016kB slab_unreclaimable:226860kB kernel_stack:3360kB pagetables:1408kB bounce:0kB free_pcp:136kB local_pcp:136kB free_cma:0kB DMA32: 8*4kB (UM) 5*8kB (UM) 4*16kB (UM) 2*32kB (M) 6*64kB (M) 4*128kB (UM) 13*256kB (UM) 2*512kB (U) 1*1024kB (U) 0*2048kB 3*4096kB (U) = 18760kB 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 5402 190 16 3 0 -1000 udevd [ 585] 0 585 5746 537 16 3 0 -1000 udevd [ 586] 0 586 5383 178 15 3 0 -1000 udevd [ 1763] 0 1763 2492 573 8 3 0 0 dhclient [ 1896] 0 1896 14264 108 23 4 0 0 rsyslogd [ 1951] 0 1951 3735 45 11 3 0 0 mcstransd [ 1953] 0 1953 4724 51 16 3 0 0 cron [ 1971] 0 1971 12926 1227 26 3 0 0 restorecond [ 1997] 0 1997 12489 152 27 3 0 -1000 sshd [ 2027] 0 2027 3648 38 12 3 0 0 getty [ 2046] 0 2046 3648 43 13 3 0 0 getty [ 2047] 0 2047 3648 43 13 3 0 0 getty [ 2048] 0 2048 3648 44 13 3 0 0 getty [ 2049] 0 2049 3648 42 13 3 0 0 getty [ 2050] 0 2050 3648 43 13 3 0 0 getty [ 2051] 0 2051 3648 41 13 3 0 0 getty [ 2052] 0 2052 17820 198 40 3 0 0 sshd [ 2054] 0 2054 4380 1 4 2 0 0 syz-executor155 [ 2055] 0 2055 4380 10 4 2 0 0 syz-executor155 [ 2056] 0 2056 4380 10 4 2 0 0 syz-executor155 [ 2058] 0 2058 4380 10 4 2 0 0 syz-executor155 [ 2059] 0 2059 4380 10 4 2 0 0 syz-executor155 [ 2060] 0 2060 4380 10 4 2 0 0 syz-executor155 [ 2061] 0 2061 4380 10 4 2 0 0 syz-executor155 [ 2066] 0 2066 4380 0 5 2 0 1000 syz-executor155 [ 2067] 0 2067 4380 10 5 2 0 1000 syz-executor155 [ 2068] 0 2068 4380 10 5 2 0 1000 syz-executor155 [ 2069] 0 2069 4380 10 5 2 0 1000 syz-executor155 [ 2070] 0 2070 4380 10 5 2 0 1000 syz-executor155 [ 2071] 0 2071 4380 10 5 2 0 1000 syz-executor155 Out of memory: Kill process 2067 (syz-executor155) score 999 or sacrifice child Killed process 2067 (syz-executor155) total-vm:17520kB, anon-rss:40kB, file-rss:0kB, shmem-rss:0kB oom_reaper: reaped process 2067 (syz-executor155), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB syz-executor155 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 2070 Comm: syz-executor155 Tainted: G W 4.9.184+ #6 ffff8800545e76a8 ffffffff81b580a1 ffff8800545e7a00 ffffffff833f0b30 00000000000003e8 ffff8800545e7a18 0000000000000000 ffff8800545e7728 ffffffff815055db 0000000000000000 00000000000003e8 ffffffff8281a285 Call Trace: [<00000000f0219cd0>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000f0219cd0>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000ed28975a>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000665b1d10>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000996faf5f>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000996faf5f>] out_of_memory+0x29b/0xeb0 mm/oom_kill.c:1009 [<0000000057a6167b>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<0000000057a6167b>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<0000000057a6167b>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<00000000b1083f6e>] __alloc_pages include/linux/gfp.h:433 [inline] [<00000000b1083f6e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<00000000b1083f6e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<00000000b1083f6e>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<00000000b1083f6e>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<00000000234f0d78>] __vmalloc_node mm/vmalloc.c:1749 [inline] [<00000000234f0d78>] __vmalloc_node_flags mm/vmalloc.c:1763 [inline] [<00000000234f0d78>] vmalloc+0x5c/0x70 mm/vmalloc.c:1778 [<00000000a428be49>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<000000000ecf268c>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000001a52baed>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000c7860754>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000c7860754>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<00000000e2fca615>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<00000000e2fca615>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000045f7365e>] tcp_setsockopt net/ipv4/tcp.c:2757 [inline] [<0000000045f7365e>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2751 [<000000004e931b79>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<000000002bcc3038>] SYSC_setsockopt net/socket.c:1786 [inline] [<000000002bcc3038>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<0000000060e2648b>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000e23ab8e3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:3605 inactive_anon:40 isolated_anon:0 active_file:5 inactive_file:30 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4254 slab_unreclaimable:56723 mapped:15 shmem:48 pagetables:357 bounce:0 free:588 free_pcp:17 free_cma:0 Node 0 active_anon:14420kB inactive_anon:160kB active_file:20kB inactive_file:120kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:60kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:2372kB min:4696kB low:7712kB high:10728kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:96kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:32kB kernel_stack:64kB pagetables:20kB bounce:0kB free_pcp:40kB local_pcp:40kB free_cma:0kB Normal free:0kB min:5580kB low:9168kB high:12756kB active_anon:14388kB inactive_anon:160kB active_file:68kB inactive_file:24kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17016kB slab_unreclaimable:226860kB kernel_stack:3360kB pagetables:1408kB bounce:0kB free_pcp:28kB local_pcp:28kB free_cma:0kB DMA32: 8*4kB (M) 5*8kB (UM) 4*16kB (UM) 2*32kB (M) 7*64kB (UM) 4*128kB (UM) 3*256kB (M) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 2440kB 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 5402 190 16 3 0 -1000 udevd [ 585] 0 585 5746 537 16 3 0 -1000 udevd [ 586] 0 586 5383 178 15 3 0 -1000 udevd [ 1763] 0 1763 2492 573 8 3 0 0 dhclient [ 1896] 0 1896 14264 108 23 4 0 0 rsyslogd [ 1951] 0 1951 3735 45 11 3 0 0 mcstransd [ 1953] 0 1953 4724 51 16 3 0 0 cron