lowmemorykiller: Killing 'syz-executor545' (2052) (tgid 2052), adj 1000, to free 44kB on behalf of 'syz-executor545' (2061) because cache 34396kB is below limit 65536kB for oom_score_adj 12 Free memory is -13372kB above reserved ================================= [ INFO: inconsistent lock state ] 4.9.194+ #0 Not tainted --------------------------------- inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-R} usage. syz-executor545/2061 [HC0[0]:SC0[0]:HE1:SE1] takes: (&mm->mmap_sem){+++++?}, at: [<0000000036c883e2>] 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: 480993 hardirqs last enabled at (480993): [<00000000f272d45b>] vprintk_emit+0x25c/0x6f0 kernel/printk/printk.c:1897 hardirqs last disabled at (480992): [<00000000b919dad2>] vprintk_emit+0x6d/0x6f0 kernel/printk/printk.c:1801 softirqs last enabled at (480558): [<00000000ff5d93f2>] __do_softirq+0x474/0x964 kernel/softirq.c:314 softirqs last disabled at (480381): [<000000001459ff2f>] invoke_softirq kernel/softirq.c:368 [inline] softirqs last disabled at (480381): [<000000001459ff2f>] irq_exit+0x119/0x160 kernel/softirq.c:409 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&mm->mmap_sem); lock(&mm->mmap_sem); *** DEADLOCK *** 1 lock held by syz-executor545/2061: #0: (shrinker_rwsem){++++..}, at: [<00000000d1de71d1>] shrink_slab.part.0+0xb2/0xa20 mm/vmscan.c:472 stack backtrace: CPU: 1 PID: 2061 Comm: syz-executor545 Not tainted 4.9.194+ #0 ffff8801c529efe0 ffffffff81b67001 00000000000000f0 ffff8801cfca5f00 ffffffff83cb0990 ffff8801cfca67f8 ffffffff84252000 ffff8801c529f058 ffffffff81408710 0000000000000000 ffffffff00000001 0000000000000001 Call Trace: [<000000005f635303>] __dump_stack lib/dump_stack.c:15 [inline] [<000000005f635303>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<0000000013638cec>] print_usage_bug kernel/locking/lockdep.c:2387 [inline] [<0000000013638cec>] print_usage_bug.cold+0x452/0x5a2 kernel/locking/lockdep.c:2354 [<000000007f1bdb02>] valid_state kernel/locking/lockdep.c:2400 [inline] [<000000007f1bdb02>] mark_lock_irq kernel/locking/lockdep.c:2602 [inline] [<000000007f1bdb02>] mark_lock+0x6c7/0x12e0 kernel/locking/lockdep.c:3065 [<00000000f5a23caa>] mark_irqflags kernel/locking/lockdep.c:2958 [inline] [<00000000f5a23caa>] __lock_acquire+0x5be/0x4390 kernel/locking/lockdep.c:3302 [<0000000008ddc09a>] lock_acquire+0x133/0x3d0 kernel/locking/lockdep.c:3756 [<0000000004c6729f>] down_read+0x44/0xb0 kernel/locking/rwsem.c:22 [<0000000036c883e2>] get_cmdline+0xa3/0x2d0 mm/util.c:641 [<0000000007935cba>] handle_lmk_event+0x169/0x920 drivers/staging/android/lowmemorykiller.c:116 [<00000000ad9b9c3b>] lowmem_scan+0x6f3/0xb70 drivers/staging/android/lowmemorykiller.c:354 [<00000000ba9d8420>] do_shrink_slab mm/vmscan.c:399 [inline] [<00000000ba9d8420>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<00000000eecbfa21>] shrink_slab mm/vmscan.c:466 [inline] [<00000000eecbfa21>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<000000001f151866>] shrink_zones mm/vmscan.c:2751 [inline] [<000000001f151866>] do_try_to_free_pages mm/vmscan.c:2793 [inline] [<000000001f151866>] try_to_free_pages+0x397/0xbd0 mm/vmscan.c:3004 [<00000000a7ee7261>] __perform_reclaim mm/page_alloc.c:3332 [inline] [<00000000a7ee7261>] __alloc_pages_direct_reclaim mm/page_alloc.c:3354 [inline] [<00000000a7ee7261>] __alloc_pages_slowpath mm/page_alloc.c:3704 [inline] [<00000000a7ee7261>] __alloc_pages_nodemask+0x930/0x1a80 mm/page_alloc.c:3861 [<0000000029d926dc>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000029d926dc>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000029d926dc>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000029d926dc>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<0000000029d926dc>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<000000008cdc1f5c>] __vmalloc_node mm/vmalloc.c:1755 [inline] [<000000008cdc1f5c>] __vmalloc_node_flags mm/vmalloc.c:1769 [inline] [<000000008cdc1f5c>] vmalloc+0x5c/0x70 mm/vmalloc.c:1784 [<000000008bdc8367>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<0000000054902202>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000006b7941ae>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000abfa8387>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000abfa8387>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<000000001e94b6a6>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<000000001e94b6a6>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000012b71da5>] udp_setsockopt+0x4e/0x90 net/ipv4/udp.c:2114 [<000000007f640252>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<00000000f12aad17>] SYSC_setsockopt net/socket.c:1786 [inline] [<00000000f12aad17>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<00000000e4396e01>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<000000000119dc97>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb oom_reaper: reaped process 2052 (syz-executor545), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB syz-executor545 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 2061 Comm: syz-executor545 Not tainted 4.9.194+ #0 ffff8801c529f6b0 ffffffff81b67001 ffff8801c529fa08 ffffffff833f1c30 00000000000003e8 ffff8801c529fa20 0000000000000000 ffff8801c529f730 ffffffff81506e44 0000000000000000 00000000000003e8 ffffffff8282ac45 Call Trace: [<000000005f635303>] __dump_stack lib/dump_stack.c:15 [inline] [<000000005f635303>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000a913f44e>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<000000003ab6f1e7>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000006595115d>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000006595115d>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<000000004800a95c>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<000000004800a95c>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<000000004800a95c>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<0000000029d926dc>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000029d926dc>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000029d926dc>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000029d926dc>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<0000000029d926dc>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<000000008cdc1f5c>] __vmalloc_node mm/vmalloc.c:1755 [inline] [<000000008cdc1f5c>] __vmalloc_node_flags mm/vmalloc.c:1769 [inline] [<000000008cdc1f5c>] vmalloc+0x5c/0x70 mm/vmalloc.c:1784 [<000000008bdc8367>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<0000000054902202>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000006b7941ae>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000abfa8387>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000abfa8387>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<000000001e94b6a6>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<000000001e94b6a6>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000012b71da5>] udp_setsockopt+0x4e/0x90 net/ipv4/udp.c:2114 [<000000007f640252>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<00000000f12aad17>] SYSC_setsockopt net/socket.c:1786 [inline] [<00000000f12aad17>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<00000000e4396e01>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<000000000119dc97>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:3606 inactive_anon:40 isolated_anon:0 active_file:22 inactive_file:42 isolated_file:0 unevictable:0 dirty:4 writeback:0 unstable:0 slab_reclaimable:4262 slab_unreclaimable:56646 mapped:52 shmem:48 pagetables:356 bounce:0 free:6055 free_pcp:30 free_cma:0 Node 0 active_anon:14424kB inactive_anon:160kB active_file:88kB inactive_file:168kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208kB dirty:16kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:18644kB 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:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:5576kB min:5580kB low:9168kB high:12756kB active_anon:14424kB inactive_anon:160kB active_file:88kB inactive_file:168kB unevictable:0kB writepending:16kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17048kB slab_unreclaimable:226584kB kernel_stack:3424kB pagetables:1424kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB DMA32: 5*4kB (UM) 1*8kB (M) 2*16kB (M) 2*32kB (UM) 2*64kB (UM) 4*128kB (UM) 4*256kB (UM) 1*512kB (M) 2*1024kB (M) 1*2048kB (M) 3*4096kB (M) = 18684kB 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5384 182 16 3 0 -1000 udevd [ 587] 0 587 5746 536 15 3 0 -1000 udevd [ 590] 0 590 5383 183 14 3 0 -1000 udevd [ 1763] 0 1763 2492 573 9 3 0 0 dhclient [ 1896] 0 1896 14231 109 23 3 0 0 rsyslogd [ 1951] 0 1951 4724 51 15 3 0 0 cron [ 1969] 0 1969 3735 44 11 3 0 0 mcstransd [ 1970] 0 1970 12926 1228 27 3 0 0 restorecond [ 1998] 0 1998 12489 160 27 3 0 -1000 sshd [ 2028] 0 2028 3648 40 13 3 0 0 getty [ 2041] 0 2041 3648 43 13 3 0 0 getty [ 2042] 0 2042 3648 43 13 3 0 0 getty [ 2043] 0 2043 3648 42 13 3 0 0 getty [ 2044] 0 2044 3648 42 13 3 0 0 getty [ 2045] 0 2045 3648 43 13 3 0 0 getty [ 2046] 0 2046 3648 41 13 3 0 0 getty [ 2047] 0 2047 17820 196 39 3 0 0 sshd [ 2049] 0 2049 4380 1 4 2 0 0 syz-executor545 [ 2050] 0 2050 4380 11 4 2 0 0 syz-executor545 [ 2051] 0 2051 4380 11 4 2 0 0 syz-executor545 [ 2052] 0 2052 4380 0 5 2 0 1000 syz-executor545 [ 2053] 0 2053 4380 11 4 2 0 0 syz-executor545 [ 2054] 0 2054 4380 11 4 2 0 0 syz-executor545 [ 2055] 0 2055 4380 11 4 2 0 0 syz-executor545 [ 2056] 0 2056 4380 11 4 2 0 0 syz-executor545 [ 2057] 0 2057 4380 11 5 2 0 1000 syz-executor545 [ 2058] 0 2058 4380 11 5 2 0 1000 syz-executor545 [ 2059] 0 2059 4380 11 5 2 0 1000 syz-executor545 [ 2060] 0 2060 4380 11 5 2 0 1000 syz-executor545 [ 2061] 0 2061 4380 11 5 2 0 1000 syz-executor545 Out of memory: Kill process 2057 (syz-executor545) score 999 or sacrifice child Killed process 2057 (syz-executor545) total-vm:17520kB, anon-rss:44kB, file-rss:0kB, shmem-rss:0kB oom_reaper: reaped process 2057 (syz-executor545), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB syz-executor545 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 2061 Comm: syz-executor545 Not tainted 4.9.194+ #0 ffff8801c529f6b0 ffffffff81b67001 ffff8801c529fa08 ffffffff833f1c30 00000000000003e8 ffff8801c529fa20 0000000000000000 ffff8801c529f730 ffffffff81506e44 0000000000000000 00000000000003e8 ffffffff8282ac45 Call Trace: [<000000005f635303>] __dump_stack lib/dump_stack.c:15 [inline] [<000000005f635303>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000a913f44e>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<000000003ab6f1e7>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000006595115d>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000006595115d>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<000000004800a95c>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<000000004800a95c>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<000000004800a95c>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<0000000029d926dc>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000029d926dc>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000029d926dc>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000029d926dc>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<0000000029d926dc>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<000000008cdc1f5c>] __vmalloc_node mm/vmalloc.c:1755 [inline] [<000000008cdc1f5c>] __vmalloc_node_flags mm/vmalloc.c:1769 [inline] [<000000008cdc1f5c>] vmalloc+0x5c/0x70 mm/vmalloc.c:1784 [<000000008bdc8367>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<0000000054902202>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000006b7941ae>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000abfa8387>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000abfa8387>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<000000001e94b6a6>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<000000001e94b6a6>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000012b71da5>] udp_setsockopt+0x4e/0x90 net/ipv4/udp.c:2114 [<000000007f640252>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<00000000f12aad17>] SYSC_setsockopt net/socket.c:1786 [inline] [<00000000f12aad17>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<00000000e4396e01>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<000000000119dc97>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:3607 inactive_anon:40 isolated_anon:0 active_file:8 inactive_file:42 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4264 slab_unreclaimable:56652 mapped:30 shmem:48 pagetables:356 bounce:0 free:6034 free_pcp:68 free_cma:0 Node 0 active_anon:14428kB inactive_anon:160kB active_file:32kB inactive_file:168kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:120kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:21 all_unreclaimable? no DMA32 free:18664kB 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:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:16kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:5472kB min:5580kB low:9168kB high:12756kB active_anon:14428kB inactive_anon:160kB active_file:32kB inactive_file:168kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17056kB slab_unreclaimable:226592kB kernel_stack:3424kB pagetables:1424kB bounce:0kB free_pcp:272kB local_pcp:152kB free_cma:0kB DMA32: 5*4kB (UM) 1*8kB (M) 2*16kB (M) 2*32kB (UM) 2*64kB (UM) 4*128kB (UM) 4*256kB (UM) 1*512kB (M) 2*1024kB (M) 1*2048kB (M) 3*4096kB (M) = 18684kB 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5384 182 16 3 0 -1000 udevd [ 587] 0 587 5746 536 15 3 0 -1000 udevd [ 590] 0 590 5383 183 14 3 0 -1000 udevd [ 1763] 0 1763 2492 573 9 3 0 0 dhclient [ 1896] 0 1896 14231 109 23 3 0 0 rsyslogd [ 1951] 0 1951 4724 51 15 3 0 0 cron [ 1969] 0 1969 3735 44 11 3 0 0 mcstransd [ 1970] 0 1970 12926 1228 27 3 0 0 restorecond [ 1998] 0 1998 12489 160 27 3 0 -1000 sshd [ 2028] 0 2028 3648 40 13 3 0 0 getty [ 2041] 0 2041 3648 43 13 3 0 0 getty [ 2042] 0 2042 3648 43 13 3 0 0 getty [ 2043] 0 2043 3648 42 13 3 0 0 getty [ 2044] 0 2044 3648 42 13 3 0 0 getty [ 2045] 0 2045 3648 43 13 3 0 0 getty [ 2046] 0 2046 3648 41 13 3 0 0 getty [ 2047] 0 2047 17820 196 39 3 0 0 sshd [ 2049] 0 2049 4380 1 4 2 0 0 syz-executor545 [ 2050] 0 2050 4380 11 4 2 0 0 syz-executor545 [ 2051] 0 2051 4380 11 4 2 0 0 syz-executor545 [ 2052] 0 2052 4380 0 5 2 0 1000 syz-executor545 [ 2053] 0 2053 4380 11 4 2 0 0 syz-executor545 [ 2054] 0 2054 4380 11 4 2 0 0 syz-executor545 [ 2055] 0 2055 4380 11 4 2 0 0 syz-executor545 [ 2056] 0 2056 4380 11 4 2 0 0 syz-executor545 [ 2057] 0 2057 4380 0 5 2 0 1000 syz-executor545 [ 2058] 0 2058 4380 11 5 2 0 1000 syz-executor545 [ 2059] 0 2059 4380 11 5 2 0 1000 syz-executor545 [ 2060] 0 2060 4380 11 5 2 0 1000 syz-executor545 [ 2061] 0 2061 4380 11 5 2 0 1000 syz-executor545 Out of memory: Kill process 2058 (syz-executor545) score 999 or sacrifice child Killed process 2058 (syz-executor545) total-vm:17520kB, anon-rss:44kB, file-rss:0kB, shmem-rss:0kB oom_reaper: reaped process 2058 (syz-executor545), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB syz-executor545 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 2061 Comm: syz-executor545 Not tainted 4.9.194+ #0 ffff8801c529f6b0 ffffffff81b67001 ffff8801c529fa08 ffffffff833f1c30 00000000000003e8 ffff8801c529fa20 0000000000000000 ffff8801c529f730 ffffffff81506e44 0000000000000000 00000000000003e8 ffffffff8282ac45 Call Trace: [<000000005f635303>] __dump_stack lib/dump_stack.c:15 [inline] [<000000005f635303>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000a913f44e>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<000000003ab6f1e7>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000006595115d>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000006595115d>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<000000004800a95c>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<000000004800a95c>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<000000004800a95c>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<0000000029d926dc>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000029d926dc>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000029d926dc>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000029d926dc>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<0000000029d926dc>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<000000008cdc1f5c>] __vmalloc_node mm/vmalloc.c:1755 [inline] [<000000008cdc1f5c>] __vmalloc_node_flags mm/vmalloc.c:1769 [inline] [<000000008cdc1f5c>] vmalloc+0x5c/0x70 mm/vmalloc.c:1784 [<000000008bdc8367>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<0000000054902202>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000006b7941ae>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000abfa8387>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000abfa8387>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<000000001e94b6a6>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<000000001e94b6a6>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000012b71da5>] udp_setsockopt+0x4e/0x90 net/ipv4/udp.c:2114 [<000000007f640252>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<00000000f12aad17>] SYSC_setsockopt net/socket.c:1786 [inline] [<00000000f12aad17>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<00000000e4396e01>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<000000000119dc97>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:3609 inactive_anon:40 isolated_anon:0 active_file:8 inactive_file:31 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4264 slab_unreclaimable:56657 mapped:14 shmem:48 pagetables:356 bounce:0 free:6039 free_pcp:76 free_cma:0 Node 0 active_anon:14436kB inactive_anon:160kB active_file:32kB inactive_file:124kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:56kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:21 all_unreclaimable? no DMA32 free:18684kB 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:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:16kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:5472kB min:5580kB low:9168kB high:12756kB active_anon:14436kB inactive_anon:160kB active_file:32kB inactive_file:124kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17056kB slab_unreclaimable:226612kB kernel_stack:3424kB pagetables:1424kB bounce:0kB free_pcp:304kB local_pcp:184kB free_cma:0kB DMA32: 5*4kB (UM) 1*8kB (M) 2*16kB (M) 2*32kB (UM) 2*64kB (UM) 4*128kB (UM) 4*256kB (UM) 1*512kB (M) 2*1024kB (M) 1*2048kB (M) 3*4096kB (M) = 18684kB 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5384 182 16 3 0 -1000 udevd [ 587] 0 587 5746 536 15 3 0 -1000 udevd [ 590] 0 590 5383 183 14 3 0 -1000 udevd [ 1763] 0 1763 2492 573 9 3 0 0 dhclient [ 1896] 0 1896 14231 109 23 3 0 0 rsyslogd [ 1951] 0 1951 4724 51 15 3 0 0 cron [ 1969] 0 1969 3735 44 11 3 0 0 mcstransd [ 1970] 0 1970 12926 1228 27 3 0 0 restorecond [ 1998] 0 1998 12489 160 27 3 0 -1000 sshd [ 2028] 0 2028 3648 40 13 3 0 0 getty [ 2041] 0 2041 3648 43 13 3 0 0 getty [ 2042] 0 2042 3648 43 13 3 0 0 getty [ 2043] 0 2043 3648 42 13 3 0 0 getty [ 2044] 0 2044 3648 42 13 3 0 0 getty [ 2045] 0 2045 3648 43 13 3 0 0 getty [ 2046] 0 2046 3648 41 13 3 0 0 getty [ 2047] 0 2047 17820 196 39 3 0 0 sshd [ 2049] 0 2049 4380 1 4 2 0 0 syz-executor545 [ 2050] 0 2050 4380 11 4 2 0 0 syz-executor545 [ 2051] 0 2051 4380 11 4 2 0 0 syz-executor545 [ 2052] 0 2052 4380 0 5 2 0 1000 syz-executor545 [ 2053] 0 2053 4380 11 4 2 0 0 syz-executor545 [ 2054] 0 2054 4380 11 4 2 0 0 syz-executor545 [ 2055] 0 2055 4380 11 4 2 0 0 syz-executor545 [ 2056] 0 2056 4380 11 4 2 0 0 syz-executor545 [ 2057] 0 2057 4380 0 5 2 0 1000 syz-executor545 [ 2042] 0 2042 3648 43 13 3 0 0 getty [ 2045] 0 2045 3648 43 13 3 0 0 getty 0*512kB [<000000006b7941ae>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 0*1024kB [<00000000abfa8387>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] 0*1024kB [<00000000abfa8387>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 0*2048kB [<000000001e94b6a6>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] 0*2048kB [<000000001e94b6a6>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 0*4096kB [<0000000012b71da5>] udp_setsockopt+0x4e/0x90 net/ipv4/udp.c:2114 = 552kB 87 total pagecache pages [<00000000f12aad17>] SYSC_setsockopt net/socket.c:1786 [inline] [<00000000f12aad17>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM [<00000000e4396e01>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 0 pages HighMem/MovableOnly [<000000000119dc97>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 313627 pages reserved Mem-Info: active_anon:3585 inactive_anon:40 isolated_anon:0 active_file:8 inactive_file:31 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4264 slab_unreclaimable:56657 mapped:14 shmem:48 pagetables:356 bounce:0 free:175 free_pcp:0 free_cma:0 Node 0 active_anon:14340kB inactive_anon:160kB active_file:32kB inactive_file:124kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:56kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:84kB 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:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:16kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:616kB min:5580kB low:9168kB high:12756kB active_anon:14340kB inactive_anon:160kB active_file:32kB inactive_file:124kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17056kB slab_unreclaimable:226612kB kernel_stack:3424kB pagetables:1424kB 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 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5384 182 16 3 0 -1000 udevd [ 587] 0 587 5746 536 15 3 0 -1000 udevd [ 590] 0 590 5383 183 14 3 0 -1000 udevd [ 1763] 0 1763 2492 573 9 3 0 0 dhclient [ 1896] 0 1896 14231 109 23 3 0 0 rsyslogd [ 1951] 0 1951 4724 51 15 3 0 0 cron [ 1969] 0 1969 3735 44 11 3 0 0 mcstransd [ 1970] 0 1970 12926 1228 27 3 0 0 restorecond [ 1998] 0 1998 12489 160 27 3 0 -1000 sshd [ 2028] 0 2028 3648 40 13 3 0 0 getty [ 2041] 0 2041 3648 43 13 3 0 0 getty [ 2042] 0 2042 3648 43 13 3 0 0 getty [ 2043] 0 2043 3648 42 13 3 0 0 getty [ 2044] 0 2044 3648 42 13 3 0 0 getty [ 2045] 0 2045 3648 43 13 3 0 0 getty [ 2046] 0 2046 3648 41 13 3 0 0 getty [ 2047] 0 2047 17820 196 39 3 0 0 sshd [ 2049] 0 2049 4380 1 4 2 0 0 syz-executor545 [ 2050] 0 2050 4380 11 4 2 0 0 syz-executor545 [ 2051] 0 2051 4380 11 4 2 0 0 syz-executor545 [ 2052] 0 2052 4380 0 5 2 0 1000 syz-executor545 [ 2053] 0 2053 4380 11 4 2 0 0 syz-executor545 [ 2054] 0 2054 4380 11 4 2 0 0 syz-executor545 [ 2055] 0 2055 4380 11 4 2 0 0 syz-executor545 [ 2056] 0 2056 4380 11 4 2 0 0 syz-executor545 [ 2057] 0 2057 4380 0 5 2 0 1000 syz-executor545 [ 2058] 0 2058 4380 0 5 2 0 1000 syz-executor545 [ 2059] 0 2059 4380 0 5 2 0 1000 syz-executor545 [ 2060] 0 2060 4380 0 5 2 0 1000 syz-executor545 [ 2061] 0 2061 4380 11 5 2 0 1000 syz-executor545 Out of memory: Kill process 2061 (syz-executor545) score 999 or sacrifice child Killed process 2061 (syz-executor545) total-vm:17520kB, anon-rss:44kB, file-rss:0kB, shmem-rss:0kB syz-executor545: vmalloc: allocation failure, allocated 844283904 of 4294975488 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) Mem-Info: active_anon:3577 inactive_anon:40 isolated_anon:0 active_file:8 inactive_file:31 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4264 slab_unreclaimable:56657 mapped:14 shmem:48 pagetables:356 bounce:0 free:159 free_pcp:4 free_cma:0 Node 0 active_anon:14308kB inactive_anon:160kB active_file:32kB inactive_file:124kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:56kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:84kB 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:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:16kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:552kB min:5580kB low:9168kB high:12756kB active_anon:14308kB inactive_anon:160kB active_file:32kB inactive_file:124kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17056kB slab_unreclaimable:226612kB kernel_stack:3424kB pagetables:1424kB bounce:0kB free_pcp:16kB local_pcp:16kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 313627 pages reserved ODEBUG: Out of memory. ODEBUG disabled lowmemorykiller: Killing 'syz-executor545' (2063) (tgid 2063), adj 1000, to free 44kB on behalf of 'syz-executor545' (2063) because cache 2540kB is below limit 6144kB for oom_score_adj 0 Free memory is -13364kB above reserved oom_reaper: reaped process 2063 (syz-executor545), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB syz-executor545 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 2066 Comm: syz-executor545 Not tainted 4.9.194+ #0 ffff88018795f6b0 ffffffff81b67001 ffff88018795fa08 ffffffff833f1c30 00000000000003e8 ffff88018795fa20 0000000000000000 ffff88018795f730 ffffffff81506e44 0000000000000000 00000000000003e8 ffffffff8282ac45 Call Trace: [<000000005f635303>] __dump_stack lib/dump_stack.c:15 [inline] [<000000005f635303>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000a913f44e>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<000000003ab6f1e7>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<000000006595115d>] out_of_memory mm/oom_kill.c:1069 [inline] [<000000006595115d>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<000000004800a95c>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<000000004800a95c>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<000000004800a95c>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<0000000029d926dc>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000029d926dc>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000029d926dc>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000029d926dc>] __vmalloc_area_node mm/vmalloc.c:1648 [inline] [<0000000029d926dc>] __vmalloc_node_range+0x25b/0x610 mm/vmalloc.c:1706 [<000000008cdc1f5c>] __vmalloc_node mm/vmalloc.c:1755 [inline] [<000000008cdc1f5c>] __vmalloc_node_flags mm/vmalloc.c:1769 [inline] [<000000008cdc1f5c>] vmalloc+0x5c/0x70 mm/vmalloc.c:1784 [<000000008bdc8367>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<0000000054902202>] do_replace.isra.0+0x111/0x480 net/ipv4/netfilter/arp_tables.c:979 [<000000006b7941ae>] do_arpt_set_ctl+0x108/0x150 net/ipv4/netfilter/arp_tables.c:1469 [<00000000abfa8387>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000abfa8387>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<000000001e94b6a6>] ip_setsockopt net/ipv4/ip_sockglue.c:1247 [inline] [<000000001e94b6a6>] ip_setsockopt+0x8a/0xa0 net/ipv4/ip_sockglue.c:1232 [<0000000012b71da5>] udp_setsockopt+0x4e/0x90 net/ipv4/udp.c:2114 [<000000007f640252>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<00000000f12aad17>] SYSC_setsockopt net/socket.c:1786 [inline] [<00000000f12aad17>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<00000000e4396e01>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<000000000119dc97>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:3617 inactive_anon:40 isolated_anon:0 active_file:23 inactive_file:25 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0