[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 11.332017] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 15.108799] random: sshd: uninitialized urandom read (32 bytes read) [ 15.117065] random: crng init done Warning: Permanently added '10.128.1.14' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 32.597896] lowmemorykiller: Killing 'syz-executor821' (2049) (tgid 2049), adj 1000, [ 32.597896] to free 44kB on behalf of 'kswapd0' (33) because [ 32.597896] cache 36488kB is below limit 65536kB for oom_score_adj 12 [ 32.597896] Free memory is -13264kB above reserved [ 32.609884] lowmemorykiller: Killing 'syz-executor821' (2049) (tgid 2049), adj 1000, [ 32.609884] to free 44kB on behalf of 'syz-executor821' (2055) because [ 32.609884] cache 33888kB is below limit 65536kB for oom_score_adj 12 [ 32.609884] Free memory is -13256kB above reserved [ 32.609900] BUG: sleeping function called from invalid context at kernel/fork.c:903 [ 32.609905] in_atomic(): 0, irqs_disabled(): 0, pid: 2055, name: syz-executor821 [ 32.609915] 2 locks held by syz-executor821/2055: [ 32.609981] #0: (shrinker_rwsem){++++..}, at: [<000000008bef7819>] shrink_slab.part.0+0xb2/0xa20 [ 32.610013] #1: (rcu_read_lock){......}, at: [<000000001507f181>] lowmem_scan+0x242/0xb50 [ 32.610036] Preemption disabled at: [ 32.610036] [<000000005296504b>] get_task_mm+0x20/0xc0 [ 32.610050] CPU: 1 PID: 2055 Comm: syz-executor821 Not tainted 4.9.186+ #12 [ 32.610077] ffff8801cf067410 ffffffff81b5a0b1 0000000000000000 0000000000000001 [ 32.610087] ffff8801d2afdf00 ffffffff810d0cc0 ffff8801d2afdf00 ffff8801cf067448 [ 32.610097] ffffffff8140032c ffff8801d2afdf00 ffffffff82a39940 0000000000000387 [ 32.610098] Call Trace: [ 32.610115] [<0000000065941d4c>] dump_stack+0xc1/0x120 [ 32.610123] [<000000005296504b>] ? get_task_mm+0x20/0xc0 [ 32.610133] [<00000000ba69894f>] ___might_sleep.cold+0x1c1/0x1fa [ 32.610153] [<0000000097b3f5ca>] __might_sleep+0x95/0x1a0 [ 32.610160] [<00000000719f9ea1>] mmput+0x28/0x370 [ 32.610168] [<0000000059aa2120>] handle_lmk_event+0xea/0x8a0 [ 32.610175] [<0000000016c3b580>] lowmem_scan+0x695/0xb50 [ 32.610184] [<00000000fe3932e7>] shrink_slab.part.0+0x3cf/0xa20 [ 32.610192] [<00000000e8aff213>] ? unregister_shrinker+0x230/0x230 [ 32.610210] [<000000008776b251>] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 32.610219] [<000000002ed70dfa>] shrink_node+0x1ed/0x750 [ 32.610228] [<0000000048f2e244>] ? shrink_node_memcg.isra.0+0x1360/0x1360 [ 32.610242] [<00000000bb7d69e5>] ? wakeup_flusher_threads+0x27c/0x480 [ 32.610249] [<00000000ae5c9ff0>] ? wakeup_flusher_threads+0xdb/0x480 [ 32.610256] [<00000000377c0d3b>] try_to_free_pages+0x397/0xbd0 [ 32.610264] [<0000000056b57b32>] ? shrink_node+0x750/0x750 [ 32.610273] [<00000000a1fa05db>] __alloc_pages_nodemask+0x930/0x1a80 [ 32.610284] [<0000000063265e1e>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 32.610296] [<00000000b5298047>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 32.610306] [<0000000087dc62d0>] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.610313] [<00000000411fc1b5>] ? retint_kernel+0x2d/0x2d [ 32.610332] [<000000006e3ff4c4>] __vmalloc_node_range+0x25b/0x610 [ 32.610352] [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 [ 32.610360] [<00000000cbfb8bd4>] vmalloc+0x5c/0x70 [ 32.610367] [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 [ 32.610375] [<000000004cfa94a2>] xt_alloc_table_info+0xc8/0x100 [ 32.610388] [<00000000731767d2>] do_ipt_set_ctl+0x231/0x470 [ 32.610396] [<0000000088a38026>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 32.610410] [<000000009019af30>] ? mutex_unlock+0x9/0x10 [ 32.610422] [<00000000306ef511>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 32.610429] [<000000006cb949e2>] nf_setsockopt+0x6d/0xc0 [ 32.610440] [<000000008ca37658>] ip_setsockopt+0x8a/0xa0 [ 32.610453] [<000000009b41bc08>] udp_setsockopt+0x4e/0x90 [ 32.610468] [<00000000851e0e3e>] sock_common_setsockopt+0x9a/0xe0 [ 32.610476] [<000000002efd2f31>] SyS_setsockopt+0x159/0x240 [ 32.610484] [<00000000d6a0d8f1>] ? SyS_recv+0x40/0x40 [ 32.610493] [<00000000abf6e043>] ? __do_page_fault+0x545/0xa60 [ 32.610499] [<00000000bad03e42>] ? do_syscall_64+0x4a/0x5c0 [ 32.610507] [<00000000d6a0d8f1>] ? SyS_recv+0x40/0x40 [ 32.610513] [<000000002a4ef442>] do_syscall_64+0x1ad/0x5c0 [ 32.610525] [<000000004aa4f984>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 32.610711] [ 32.610713] ================================= [ 32.610715] [ INFO: inconsistent lock state ] [ 32.610720] 4.9.186+ #12 Tainted: G W [ 32.610721] --------------------------------- [ 32.610725] inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-R} usage. [ 32.610732] syz-executor821/2055 [HC0[0]:SC0[0]:HE1:SE1] takes: [ 32.610744] (&mm->mmap_sem){+++++?}, at: [<00000000ec761444>] get_cmdline+0xa3/0x2d0 {RECLAIM_FS-ON-W} state was registered at: [ 32.610760] mark_held_locks+0xb1/0x100 [ 32.610766] lockdep_trace_alloc+0x18c/0x2b0 [ 32.610771] __alloc_pages_nodemask+0x143/0x1a80 [ 32.610779] __pmd_alloc+0x4a/0x330 [ 32.610786] move_page_tables+0xadb/0xd60 [ 32.610796] shift_arg_pages+0x1ae/0x470 [ 32.610801] setup_arg_pages+0x60d/0x7c0 [ 32.610816] load_elf_binary+0xa84/0x4a90 [ 32.610822] search_binary_handler+0x14f/0x700 [ 32.610827] do_execveat_common.isra.0+0xf81/0x1db0 [ 32.610832] do_execve+0x3a/0x50 [ 32.610838] run_init_process+0x33/0x37 [ 32.610845] try_to_run_init_process+0x18/0x48 [ 32.610851] kernel_init+0xf2/0x163 [ 32.610856] ret_from_fork+0x5c/0x70 [ 32.610859] irq event stamp: 525325 [ 32.610867] hardirqs last enabled at (525325): [<00000000411fc1b5>] restore_regs_and_iret+0x0/0x1d [ 32.610875] hardirqs last disabled at (525324): [<0000000063ec06df>] apic_timer_interrupt+0x98/0xb0 [ 32.610882] softirqs last enabled at (525082): [<00000000daec0afc>] wb_queue_work+0x1ed/0x450 [ 32.610889] softirqs last disabled at (525078): [<0000000081197b2c>] wb_queue_work+0x90/0x450 [ 32.610891] [ 32.610891] other info that might help us debug this: [ 32.610893] Possible unsafe locking scenario: [ 32.610893] [ 32.610894] CPU0 [ 32.610895] ---- [ 32.610899] lock(&mm->mmap_sem); [ 32.610901] [ 32.610905] lock(&mm->mmap_sem); [ 32.610906] [ 32.610906] *** DEADLOCK *** [ 32.610906] executing program executing program [ 32.610910] 3 locks held by syz-executor821/2055: [ 32.610923] #0: (shrinker_rwsem){++++..}, at: [<000000008bef7819>] shrink_slab.part.0+0xb2/0xa20 [ 32.610935] #1: (rcu_read_lock){......}, at: [<000000001507f181>] lowmem_scan+0x242/0xb50 [ 32.610947] #2: (lmk_event_lock){+.+.-.}, at: [<00000000d0be266c>] handle_lmk_event+0xfb/0x8a0 executing program executing program [ 32.610949] [ 32.610949] stack backtrace: [ 32.610956] CPU: 1 PID: 2055 Comm: syz-executor821 Tainted: G W 4.9.186+ #12 [ 32.610967] ffff8801cf067150 ffffffff81b5a0b1 00000000000000f0 ffff8801d2afdf00 [ 32.610977] ffffffff83caf5b0 ffff8801d2afe848 ffffffff84250ec0 ffff8801cf0671c8 executing program [ 32.610986] ffffffff81406d69 0000000000000000 ffffffff00000001 0000000000000001 [ 32.610988] Call Trace: [ 32.610996] [<0000000065941d4c>] dump_stack+0xc1/0x120 executing program [ 32.611005] [<00000000023990da>] print_usage_bug.cold+0x452/0x5a2 [ 32.611012] [<00000000eacd7885>] mark_lock+0x6c7/0x12e0 [ 32.611020] [<00000000575291b5>] ? print_irq_inversion_bug+0xa0/0xa0 [ 32.611026] [<0000000042da10d3>] __lock_acquire+0x5c3/0x4350 [ 32.611034] [<0000000055374998>] ? trace_hardirqs_on+0x10/0x10 [ 32.611041] [<00000000b5298047>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 32.611054] [<00000000b5256522>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 32.611062] [<0000000092af4271>] lock_acquire+0x133/0x3d0 [ 32.611068] [<00000000ec761444>] ? get_cmdline+0xa3/0x2d0 [ 32.611076] [<00000000af054e64>] down_read+0x44/0xb0 [ 32.611083] [<00000000ec761444>] ? get_cmdline+0xa3/0x2d0 [ 32.611089] [<00000000ec761444>] get_cmdline+0xa3/0x2d0 [ 32.611097] [<00000000e90e0e74>] handle_lmk_event+0x13c/0x8a0 [ 32.611104] [<0000000016c3b580>] lowmem_scan+0x695/0xb50 [ 32.611113] [<00000000fe3932e7>] shrink_slab.part.0+0x3cf/0xa20 [ 32.611121] [<00000000e8aff213>] ? unregister_shrinker+0x230/0x230 [ 32.611129] [<000000008776b251>] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 32.611141] [<000000002ed70dfa>] shrink_node+0x1ed/0x750 [ 32.611150] [<0000000048f2e244>] ? shrink_node_memcg.isra.0+0x1360/0x1360 [ 32.611158] [<00000000bb7d69e5>] ? wakeup_flusher_threads+0x27c/0x480 [ 32.611165] [<00000000ae5c9ff0>] ? wakeup_flusher_threads+0xdb/0x480 [ 32.611173] [<00000000377c0d3b>] try_to_free_pages+0x397/0xbd0 [ 32.611181] [<0000000056b57b32>] ? shrink_node+0x750/0x750 [ 32.611188] [<00000000a1fa05db>] __alloc_pages_nodemask+0x930/0x1a80 [ 32.611197] [<0000000063265e1e>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 32.611204] [<00000000b5298047>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 32.611212] [<0000000087dc62d0>] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.611220] [<00000000411fc1b5>] ? retint_kernel+0x2d/0x2d [ 32.611227] [<000000006e3ff4c4>] __vmalloc_node_range+0x25b/0x610 [ 32.611235] [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 [ 32.611242] [<00000000cbfb8bd4>] vmalloc+0x5c/0x70 [ 32.611250] [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 [ 32.611257] [<000000004cfa94a2>] xt_alloc_table_info+0xc8/0x100 [ 32.611265] [<00000000731767d2>] do_ipt_set_ctl+0x231/0x470 [ 32.611274] [<0000000088a38026>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 32.611282] [<000000009019af30>] ? mutex_unlock+0x9/0x10 [ 32.611290] [<00000000306ef511>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 32.611297] [<000000006cb949e2>] nf_setsockopt+0x6d/0xc0 [ 32.611304] [<000000008ca37658>] ip_setsockopt+0x8a/0xa0 [ 32.611311] [<000000009b41bc08>] udp_setsockopt+0x4e/0x90 [ 32.611326] [<00000000851e0e3e>] sock_common_setsockopt+0x9a/0xe0 [ 32.611334] [<000000002efd2f31>] SyS_setsockopt+0x159/0x240 [ 32.611341] [<00000000d6a0d8f1>] ? SyS_recv+0x40/0x40 [ 32.611348] [<00000000abf6e043>] ? __do_page_fault+0x545/0xa60 [ 32.611355] [<00000000bad03e42>] ? do_syscall_64+0x4a/0x5c0 [ 32.611362] [<00000000d6a0d8f1>] ? SyS_recv+0x40/0x40 [ 32.611369] [<000000002a4ef442>] do_syscall_64+0x1ad/0x5c0 [ 32.611377] [<000000004aa4f984>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 32.768617] oom_reaper: reaped process 2049 (syz-executor821), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 32.770299] syz-executor821 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 ** 7 printk messages dropped ** [ 32.770386] [<0000000067f045e1>] ? _raw_spin_unlock_irqrestore+0x45/0x70 ** 5 printk messages dropped ** [ 32.770439] [<0000000047a591ff>] ? out_of_memory+0x6d3/0xea0 [ 32.770448] [<000000005727e959>] out_of_memory+0x29b/0xea0 [ 32.770455] [<000000008271ea74>] ? out_of_memory+0x41c/0xea0 [ 32.770463] [<00000000107e206a>] ? oom_killer_disable+0x210/0x210 [ 32.770471] [<00000000b48616e8>] ? trace_hardirqs_on+0xd/0x10 [ 32.770479] [<000000000041b089>] ? __alloc_pages_nodemask+0x10d0/0x1a80 [ 32.770486] [<0000000051cff0c6>] __alloc_pages_nodemask+0x1730/0x1a80 [ 32.770495] [<0000000063265e1e>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 32.770503] [<00000000411fc1b5>] ? retint_kernel+0x2d/0x2d [ 32.770512] [<000000006e3ff4c4>] __vmalloc_node_range+0x25b/0x610 [ 32.770522] [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 [ 32.770536] [<00000000cbfb8bd4>] vmalloc+0x5c/0x70 [ 32.770544] [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 [ 32.770552] [<000000004cfa94a2>] xt_alloc_table_info+0xc8/0x100 [ 32.770562] [<00000000731767d2>] do_ipt_set_ctl+0x231/0x470 [ 32.770570] [<0000000088a38026>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 32.770579] [<000000009019af30>] ? mutex_unlock+0x9/0x10 [ 32.770589] [<00000000306ef511>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 32.770597] [<000000006cb949e2>] nf_setsockopt+0x6d/0xc0 [ 32.770604] [<000000008ca37658>] ip_setsockopt+0x8a/0xa0 [ 32.770614] [<000000009b41bc08>] udp_setsockopt+0x4e/0x90 [ 32.770623] [<00000000851e0e3e>] sock_common_setsockopt+0x9a/0xe0 [ 32.770631] [<000000002efd2f31>] SyS_setsockopt+0x159/0x240 [ 32.770638] [<00000000d6a0d8f1>] ? SyS_recv+0x40/0x40 [ 32.770647] [<00000000abf6e043>] ? __do_page_fault+0x545/0xa60 [ 32.770654] [<00000000bad03e42>] ? do_syscall_64+0x4a/0x5c0 [ 32.770661] [<00000000d6a0d8f1>] ? SyS_recv+0x40/0x40 [ 32.770667] [<000000002a4ef442>] do_syscall_64+0x1ad/0x5c0 [ 32.770675] [<000000004aa4f984>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 32.770678] Mem-Info: [ 32.770702] active_anon:3222 inactive_anon:42 isolated_anon:0 [ 32.770702] active_file:17 inactive_file:4 isolated_file:0 [ 32.770702] unevictable:0 dirty:0 writeback:13 unstable:0 [ 32.770702] slab_reclaimable:4262 slab_unreclaimable:56801 [ 32.770702] mapped:29 shmem:48 pagetables:358 bounce:0 [ 32.770702] free:6035 free_pcp:68 free_cma:0 [ 32.770718] Node 0 active_anon:12888kB inactive_anon:168kB active_file:68kB inactive_file:16kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:116kB dirty:0kB writeback:52kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:54 all_unreclaimable? no [ 32.770736] 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:4kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 32.770762] Normal free:5532kB min:5580kB low:9168kB high:12756kB active_anon:12888kB inactive_anon:168kB active_file:68kB inactive_file:16kB unevictable:0kB writepending:52kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17048kB slab_unreclaimable:227200kB kernel_stack:3424kB pagetables:1432kB bounce:0kB free_pcp:152kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 32.770812] DMA32: 3*4kB (UM) 3*8kB (M) 2*16kB (M) 1*32kB (M) 2*64kB (UM) 4*128kB (UM) 4*256kB (UM) 1*512kB (M) 2*1024kB (M) 1*2048kB (M) 3*4096kB (M) = 18660kB Normal: 184*4kB (UMH) 66*8kB (MH) 48*16kB (UMH) 30*32kB (UMH) 8*64kB (UMH) 4*128kB (H) 6*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5552kB 84 total pagecache pages [ 32.770854] 0 pages in swap cache [ 32.770858] Swap cache stats: add 0, delete 0, find 0/0 [ 32.770860] Free swap = 0kB [ 32.770862] Total swap = 0kB [ 32.770865] 1965979 pages RAM [ 32.770867] 0 pages HighMem/MovableOnly [ 32.770868] 313625 pages reserved [ 32.770871] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 32.770885] [ 470] 0 470 5417 192 17 4 0 -1000 udevd [ 32.770895] [ 585] 0 585 5383 174 16 4 0 -1000 udevd [ 32.770904] [ 586] 0 586 5383 175 16 4 0 -1000 udevd [ 32.770913] [ 1763] 0 1763 2492 573 8 3 0 0 dhclient [ 32.770922] [ 1894] 0 1894 14231 109 23 3 0 0 rsyslogd [ 32.770931] [ 1949] 0 1949 4724 50 14 3 0 0 cron executing program [ 32.770940] [ 1967] 0 1967 3734 44 11 3 0 0 mcstransd [ 32.770953] [ 1969] 0 1969 12926 1227 27 4 0 0 restorecond [ 32.770963] [ 1995] 0 1995 12489 153 29 3 0 -1000 sshd [ 32.770972] [ 2025] 0 2025 3648 40 12 3 0 0 getty executing program executing program [ 32.770980] [ 2044] 0 2044 17820 198 39 3 0 0 sshd [ 32.770989] [ 2046] 0 2046 4380 1 4 2 0 0 syz-executor821 executing program [ 32.770998] [ 2047] 0 2047 4380 11 4 2 0 0 syz-executor821 [ 32.771007] [ 2048] 0 2048 4380 11 4 2 0 0 syz-executor821 [ 32.771015] [ 2049] 0 2049 4380 0 5 2 0 1000 syz-executor821 [ 32.771025] [ 2050] 0 2050 4380 11 4 2 0 0 syz-executor821 [ 32.771033] [ 2051] 0 2051 4380 11 4 2 0 0 syz-executor821 [ 32.771042] [ 2052] 0 2052 4380 11 4 2 0 0 syz-executor821 executing program [ 32.771051] [ 2053] 0 2053 4380 11 4 2 0 0 syz-executor821 [ 32.771060] [ 2054] 0 2054 4380 11 5 2 0 1000 syz-executor821 executing program [ 32.771069] [ 2055] 0 2055 4380 11 5 2 0 1000 syz-executor821 [ 32.771078] [ 2056] 0 2056 4380 11 5 2 0 1000 syz-executor821 [ 32.771086] [ 2057] 0 2057 4380 11 5 2 0 1000 syz-executor821 [ 32.771095] [ 2058] 0 2058 4380 11 5 2 0 1000 syz-executor821 [ 32.771104] [ 2059] 0 2059 3648 42 13 3 0 0 getty [ 32.771113] [ 2060] 0 2060 3648 44 13 3 0 0 getty [ 32.771122] [ 2061] 0 2061 3648 43 13 3 0 0 getty [ 32.771130] [ 2062] 0 2062 3648 43 13 3 0 0 getty [ 32.771139] [ 2063] 0 2063 3648 42 12 3 0 0 getty [ 32.771148] [ 2064] 0 2064 3648 44 13 3 0 0 getty [ 32.771153] Out of memory: Kill process 2054 (syz-executor821) score 999 or sacrifice child [ 32.771166] Killed process 2054 (syz-executor821) total-vm:17520kB, anon-rss:44kB, file-rss:0kB, shmem-rss:0kB [ 32.771327] oom_reaper: reaped process 2054 (syz-executor821), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 32.778722] syz-executor821 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 [ 32.778730] CPU: 1 PID: 2055 Comm: syz-executor821 Tainted: G W 4.9.186+ #12 [ 32.778745] ffff8801cf067738 ffffffff81b5a0b1 ffff8801cf067a90 ffffffff833f11f0 [ 32.778755] 00000000000003e8 ffff8801cf067aa8 0000000000000000 ffff8801cf0677b8 [ 32.778765] ffffffff815054bb 0000000000000000 00000000000003e8 ffffffff8281c215 [ 32.778767] Call Trace: [ 32.778779] [<0000000065941d4c>] dump_stack+0xc1/0x120 [ 32.778797] [<00000000aa853254>] dump_header.isra.0+0x142/0x74c [ 32.778806] [<0000000067f045e1>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 32.778815] [<0000000015b693ce>] ? ___ratelimit+0x55/0x413 [ 32.778823] [<000000006ff7ff6f>] oom_kill_process.cold+0xd/0xa74 [ 32.778833] [<00000000ea886028>] ? has_capability_noaudit+0x25/0x30 [ 32.778841] [<000000000841e8dc>] ? oom_badness.part.0+0x11d/0x600 [ 32.778849] [<00000000b73c9186>] ? oom_badness.part.0+0x12f/0x600 [ 32.778857] [<0000000047a591ff>] ? out_of_memory+0x6d3/0xea0 [ 32.778865] [<000000005727e959>] out_of_memory+0x29b/0xea0 [ 32.778873] [<000000008271ea74>] ? out_of_memory+0x41c/0xea0 [ 32.778881] [<00000000107e206a>] ? oom_killer_disable+0x210/0x210 [ 32.778890] [<00000000b48616e8>] ? trace_hardirqs_on+0xd/0x10 [ 32.778905] [<000000000041b089>] ? __alloc_pages_nodemask+0x10d0/0x1a80 [ 32.778913] [<0000000051cff0c6>] __alloc_pages_nodemask+0x1730/0x1a80 [ 32.778923] [<0000000063265e1e>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 32.778931] [<00000000b5298047>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 32.778940] [<0000000087dc62d0>] ? trace_hardirqs_on_thunk+0x1a/0x1c ** 30 printk messages dropped ** [ 32.779311] Normal: 19*4kB (H) 16*8kB (H) 20*16kB (H) 8*32kB (H) 4*64kB (H) 4*128kB (H) 6*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 3084kB ** 51 printk messages dropped ** [ 32.784040] [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 ** 91 printk messages dropped ** [ 32.808170] [<00000000e069c195>] __vmalloc_node_range+0x3ff/0x610 [ 32.808179] [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 ** 46 printk messages dropped ** [ 32.809716] [<00000000ea886028>] ? has_capability_noaudit+0x25/0x30 ** 93 printk messages dropped ** [ 32.810669] [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 [ 32.810676] [<00000000cbfb8bd4>] vmalloc+0x5c/0x70 ** 91 printk messages dropped ** [ 32.859274] Total swap = 0kB [ 32.859275] 1965979 pages RAM [ 32.859276] 0 pages HighMem/MovableOnly [ 32.859277] 313625 pages reserved [ 32.859279] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 32.859289] [ 470] 0 470 5417 192 17 4 0 -1000 udevd [ 32.859294] [ 585] 0 585 5383 174 16 4 0 -1000 udevd [ 32.859300] [ 586] 0 586 5383 175 16 4 0 -1000 udevd [ 32.859304] [ 1763] 0 1763 2492 573 8 3 0 0 dhclient [ 32.859310] [ 1894] 0 1894 14231 109 23 3 0 0 rsyslogd [ 32.859314] [ 1949] 0 1949 4724 50 14 3 0 0 cron [ 32.859319] [ 1967] 0 1967 3734 44 11 3 0 0 mcstransd [ 32.859324] [ 1969] 0 1969 12926 1227 27 4 0 0 restorecond [ 32.859329] [ 1995] 0 1995 12489 153 29 3 0 -1000 sshd [ 32.859334] [ 2025] 0 2025 3648 40 12 3 0 0 getty [ 32.859339] [ 2044] 0 2044 17820 198 39 3 0 0 sshd [ 32.859344] [ 2046] 0 2046 4380 1 4 2 0 0 syz-executor821 [ 32.859349] [ 2047] 0 2047 4380 11 4 2 0 0 syz-executor821 [ 32.859354] [ 2048] 0 2048 4380 11 4 2 0 0 syz-executor821 [ 32.859359] [ 2049] 0 2049 4380 0 5 2 0 1000 syz-executor821 [ 32.859364] [ 2050] 0 2050 4380 11 4 2 0 0 syz-executor821 [ 32.859369] [ 2051] 0 2051 4380 11 4 2 0 0 syz-executor821 [ 32.859374] [ 2052] 0 2052 4380 11 4 2 0 0 syz-executor821 [ 32.859378] [ 2053] 0 2053 4380 11 4 2 0 0 syz-executor821 [ 32.859384] [ 2054] 0 2054 4380 0 5 2 0 1000 syz-executor821 [ 32.859406] [ 2055] 0 2055 4380 0 5 2 0 1000 syz-executor821 [ 32.859412] [ 2056] 0 2056 4380 0 5 2 0 1000 syz-executor821 [ 32.859418] [ 2057] 0 2057 4380 11 5 2 0 1000 syz-executor821 [ 32.859423] [ 2058] 0 2058 4380 11 5 2 0 1000 syz-executor821 [ 32.859428] [ 2059] 0 2059 3648 42 13 3 0 0 getty [ 32.859434] [ 2060] 0 2060 3648 44 13 3 0 0 getty [ 32.859438] [ 2061] 0 2061 3648 43 13 3 0 0 getty [ 32.859443] [ 2062] 0 2062 3648 43 13 3 0 0 getty [ 32.859448] [ 2063] 0 2063 3648 42 12 3 0 0 getty [ 32.859453] [ 2064] 0 2064 3648 44 13 3 0 0 getty [ 32.859457] Out of memory: Kill process 2057 (syz-executor821) score 999 or sacrifice child [ 32.859468] Killed process 2057 (syz-executor821) total-vm:17520kB, anon-rss:44kB, file-rss:0kB, shmem-rss:0kB [ 32.888152] oom_reaper: reaped process 2057 (syz-executor821), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 32.888215] syz-executor821: vmalloc: allocation failure, allocated 1053593600 of 3843104768 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 32.888225] CPU: 0 PID: 2057 Comm: syz-executor821 Tainted: G W 4.9.186+ #12 [ 32.888241] ffff8801c386fa10 ffffffff81b5a0b1 1ffff1003870df44 dffffc0000000000 [ 32.888251] ffffffff82aaa9c0 0000000000000000 0000000000400000 ffff8801c386fb38 [ 32.888260] ffffffff81506773 0000000041b58ab3 ffffffff82e3a4c0 ffffffff81430350 [ 32.888262] Call Trace: [ 32.888282] [<0000000065941d4c>] dump_stack+0xc1/0x120 [ 32.888293] [<000000002bc2379c>] warn_alloc.cold+0x76/0x93 [ 32.888305] [<00000000e31146c7>] ? zone_watermark_ok_safe+0x260/0x260 [ 32.888316] [<0000000087dc62d0>] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.888326] [<00000000e069c195>] __vmalloc_node_range+0x3ff/0x610 [ 32.888335] [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 [ 32.888343] [<00000000cbfb8bd4>] vmalloc+0x5c/0x70 [ 32.888350] [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 [ 32.888358] [<000000004cfa94a2>] xt_alloc_table_info+0xc8/0x100 [ 32.888368] [<00000000731767d2>] do_ipt_set_ctl+0x231/0x470 [ 32.888377] [<0000000088a38026>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 32.888388] [<000000009019af30>] ? mutex_unlock+0x9/0x10 [ 32.888397] [<00000000306ef511>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 executing program [ 32.888405] [<000000006cb949e2>] nf_setsockopt+0x6d/0xc0 [ 32.888412] [<000000008ca37658>] ip_setsockopt+0x8a/0xa0 [ 32.888420] [<000000009b41bc08>] udp_setsockopt+0x4e/0x90 [ 32.888429] [<00000000851e0e3e>] sock_common_setsockopt+0x9a/0xe0 executing program executing program [ 32.888437] [<000000002efd2f31>] SyS_setsockopt+0x159/0x240 [ 32.888444] [<00000000d6a0d8f1>] ? SyS_recv+0x40/0x40 [ 32.888453] [<00000000abf6e043>] ? __do_page_fault+0x545/0xa60 [ 32.888459] [<00000000bad03e42>] ? do_syscall_64+0x4a/0x5c0 [ 32.888466] [<00000000d6a0d8f1>] ? SyS_recv+0x40/0x40 [ 32.888473] [<000000002a4ef442>] do_syscall_64+0x1ad/0x5c0 [ 32.888481] [<000000004aa4f984>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 32.888484] Mem-Info: [ 32.888502] active_anon:3197 inactive_anon:42 isolated_anon:0 [ 32.888502] active_file:17 inactive_file:4 isolated_file:0 [ 32.888502] unevictable:0 dirty:0 writeback:13 unstable:0 [ 32.888502] slab_reclaimable:4262 slab_unreclaimable:56801 [ 32.888502] mapped:29 shmem:48 pagetables:358 bounce:0 [ 32.888502] free:761 free_pcp:20 free_cma:0 [ 32.888516] Node 0 active_anon:12788kB inactive_anon:168kB active_file:68kB inactive_file:16kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:116kB dirty:0kB writeback:52kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no executing program [ 32.888534] 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:4kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 32.888560] Normal free:3064kB min:5580kB low:9168kB high:12756kB active_anon:12788kB inactive_anon:168kB active_file:68kB inactive_file:16kB unevictable:0kB writepending:52kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17048kB slab_unreclaimable:227200kB kernel_stack:3424kB pagetables:1432kB bounce:0kB free_pcp:80kB local_pcp:80kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 32.888594] DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Normal: 19*4kB (H) 16*8kB (H) 20*16kB (H) 8*32kB (H) 4*64kB (H) 4*128kB (H) 6*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 3084kB 84 total pagecache pages [ 32.888634] 0 pages in swap cache [ 32.888638] Swap cache stats: add 0, delete 0, find 0/0 [ 32.888640] Free swap = 0kB [ 32.888642] Total swap = 0kB [ 32.888644] 1965979 pages RAM [ 32.888646] 0 pages HighMem/MovableOnly [ 32.888648] 313625 pages reserved [ 32.899678] syz-executor821 invoked oom-killer: gfp_mask=0x24200ca(GFP_HIGHUSER_MOVABLE), nodemask=0, order=0, oom_score_adj=0 [ 32.899691] CPU: 0 PID: 2051 Comm: syz-executor821 Tainted: G W 4.9.186+ #12 [ 32.899709] ffff8801cf2cf6f0 ffffffff81b5a0b1 ffff8801cf2cfa48 ffffffff833f11f0 [ 32.899720] 0000000000000000 ffff8801cf2cfa60 0000000000000000 ffff8801cf2cf770 [ 32.899730] ffffffff815054bb 0000000000000000 0000000000000000 ffffffff8281c215 [ 32.899732] Call Trace: [ 32.899751] [<0000000065941d4c>] dump_stack+0xc1/0x120 [ 32.899763] [<00000000aa853254>] dump_header.isra.0+0x142/0x74c [ 32.899774] [<0000000067f045e1>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 32.899782] [<0000000015b693ce>] ? ___ratelimit+0x55/0x413 [ 32.899791] [<000000006ff7ff6f>] oom_kill_process.cold+0xd/0xa74 [ 32.899802] [<00000000ea886028>] ? has_capability_noaudit+0x25/0x30 [ 32.899813] [<000000000841e8dc>] ? oom_badness.part.0+0x11d/0x600 ** 38 printk messages dropped ** [ 32.900246] 0 pages in swap cache ** 43 printk messages dropped ** [ 32.928177] ffffffff81506773 0000000041b58ab3 ffffffff82e3a4c0 ffffffff81430350 [ 32.928179] Call Trace: [ 32.928199] [<0000000065941d4c>] dump_stack+0xc1/0x120 [ 32.928210] [<000000002bc2379c>] warn_alloc.cold+0x76/0x93 [ 32.928222] [<00000000e31146c7>] ? zone_watermark_ok_safe+0x260/0x260 [ 32.928232] [<00000000e069c195>] __vmalloc_node_range+0x3ff/0x610 ** 91 printk messages dropped ** [ 32.949839] Total swap = 0kB [ 32.949841] 1965979 pages RAM [ 32.949843] 0 pages HighMem/MovableOnly ** 112 printk messages dropped ** [ 35.460068] [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 [ 35.460075] [<00000000cbfb8bd4>] vmalloc+0x5c/0x70 [ 35.460082] [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 [ 35.460090] [<000000004cfa94a2>] xt_alloc_table_info+0xc8/0x100 [ 35.460101] [<00000000731767d2>] do_ipt_set_ctl+0x231/0x470 [ 35.460109] [<0000000088a38026>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 35.460118] [<000000009019af30>] ? mutex_unlock+0x9/0x10 [ 35.460128] [<00000000306ef511>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 35.460136] [<000000006cb949e2>] nf_setsockopt+0x6d/0xc0 [ 35.460142] [<000000008ca37658>] ip_setsockopt+0x8a/0xa0 [ 35.460150] [<000000009b41bc08>] udp_setsockopt+0x4e/0x90 [ 35.460159] [<00000000851e0e3e>] sock_common_setsockopt+0x9a/0xe0 [ 35.460166] [<000000002efd2f31>] SyS_setsockopt+0x159/0x240 [ 35.460173] [<00000000d6a0d8f1>] ? SyS_recv+0x40/0x40 [ 35.460182] [<00000000abf6e043>] ? __do_page_fault+0x545/0xa60 [ 35.460190] [<00000000cedcea2f>] ? bad_area_access_error+0x3d0/0x3d0 [ 35.460197] [<00000000d6a0d8f1>] ? SyS_recv+0x40/0x40 [ 35.460203] [<000000002a4ef442>] do_syscall_64+0x1ad/0x5c0 [ 35.460211] [<000000004aa4f984>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 35.460334] Mem-Info: [ 35.460352] active_anon:1986 inactive_anon:42 isolated_anon:0 [ 35.460352] active_file:6 inactive_file:16 isolated_file:0 [ 35.460352] unevictable:0 dirty:0 writeback:0 unstable:0 [ 35.460352] slab_reclaimable:4278 slab_unreclaimable:56840 [ 35.460352] mapped:14 shmem:48 pagetables:331 bounce:0 [ 35.460352] free:6039 free_pcp:68 free_cma:0 [ 35.460366] Node 0 active_anon:7944kB inactive_anon:168kB active_file:24kB inactive_file:64kB 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 [ 35.460384] DMA32 free:18596kB 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:4kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 35.460409] Normal free:5560kB min:5580kB low:9168kB high:12756kB active_anon:7944kB inactive_anon:168kB active_file:24kB inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17112kB slab_unreclaimable:227356kB kernel_stack:3392kB pagetables:1324kB bounce:0kB free_pcp:152kB local_pcp:152kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 35.460455] DMA32: 2*4kB (UM) 4*8kB (UM) 2*16kB (UM) 1*32kB (M) 0*64kB 3*128kB (UM) 3*256kB (UM) 0*512kB 1*1024kB (M) 0*2048kB 4*4096kB (U) = 18664kB Normal: 165*4kB (UMH) 58*8kB (MH) 41*16kB (UMH) 26*32kB (MH) 15*64kB (MH) 4*128kB (H) 6*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5620kB 97 total pagecache pages [ 35.460497] 0 pages in swap cache [ 35.460500] Swap cache stats: add 0, delete 0, find 0/0 [ 35.460502] Free swap = 0kB [ 35.460504] Total swap = 0kB [ 35.460506] 1965979 pages RAM [ 35.460508] 0 pages HighMem/MovableOnly [ 35.460510] 313625 pages reserved [ 35.460512] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 35.460528] [ 470] 0 470 5417 192 17 4 0 -1000 udevd [ 35.460538] [ 585] 0 585 5383 174 16 4 0 -1000 udevd [ 35.460547] [ 586] 0 586 5383 175 16 4 0 -1000 udevd [ 35.460556] [ 1763] 0 1763 2492 573 8 3 0 0 dhclient [ 35.460564] [ 1894] 0 1894 14231 109 23 3 0 0 rsyslogd [ 35.460573] [ 1949] 0 1949 4724 50 14 3 0 0 cron [ 35.460582] [ 1967] 0 1967 3734 44 11 3 0 0 mcstransd executing program [ 35.460591] [ 1995] 0 1995 12489 153 29 3 0 -1000 sshd [ 35.460600] [ 2025] 0 2025 3648 40 12 3 0 0 getty [ 35.460609] [ 2044] 0 2044 17820 198 39 3 0 0 sshd [ 35.460617] [ 2046] 0 2046 4380 1 4 2 0 0 syz-executor821 [ 35.460626] [ 2047] 0 2047 4380 11 4 2 0 0 syz-executor821 executing program [ 35.460635] [ 2048] 0 2048 4380 11 4 2 0 0 syz-executor821 [ 35.460644] [ 2050] 0 2050 4380 11 4 2 0 0 syz-executor821 [ 35.460652] [ 2051] 0 2051 4380 11 4 2 0 0 syz-executor821 [ 35.460661] [ 2052] 0 2052 4380 11 4 2 0 0 syz-executor821 [ 35.460669] [ 2053] 0 2053 4380 11 4 2 0 0 syz-executor821 [ 35.460678] [ 2059] 0 2059 3648 42 13 3 0 0 getty [ 35.460687] [ 2060] 0 2060 3648 44 13 3 0 0 getty [ 35.460696] [ 2061] 0 2061 3648 43 13 3 0 0 getty [ 35.460704] [ 2062] 0 2062 3648 43 13 3 0 0 getty [ 35.460713] [ 2063] 0 2063 3648 42 12 3 0 0 getty [ 35.460729] [ 2064] 0 2064 3648 44 13 3 0 0 getty [ 35.460739] [ 2065] 0 2065 4380 0 5 2 0 1000 syz-executor821 [ 35.460748] [ 2066] 0 2066 4380 11 5 2 0 1000 syz-executor821 [ 35.460756] [ 2067] 0 2067 4380 11 5 2 0 1000 syz-executor821 [ 35.460766] [ 2068] 0 2068 4380 11 5 2 0 1000 syz-executor821 [ 35.460775] [ 2069] 0 2069 4380 11 5 2 0 1000 syz-executor821 [ 35.460784] [ 2070] 0 2070 4380 11 5 2 0 1000 syz-executor821 [ 35.460789] Out of memory: Kill process 2066 (syz-executor821) score 999 or sacrifice child [ 35.460802] Killed process 2066 (syz-executor821) total-vm:17520kB, anon-rss:44kB, file-rss:0kB, shmem-rss:0kB [ 35.460919] oom_reaper: reaped process 2066 (syz-executor821), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 35.471006] syz-executor821: vmalloc: allocation failure, allocated 1395191808 of 3843104768 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 35.471015] CPU: 0 PID: 2066 Comm: syz-executor821 Tainted: G W 4.9.186+ #12 [ 35.471030] ffff8801cf1e7a10 ffffffff81b5a0b1 1ffff10039e3cf44 dffffc0000000000 executing program [ 35.471040] ffffffff82aaa9c0 0000000000000000 0000000000400000 ffff8801cf1e7b38 [ 35.471049] ffffffff81506773 0000000041b58ab3 ffffffff82e3a4c0 ffffffff81430350 [ 35.471051] Call Trace: [ 35.471067] [<0000000065941d4c>] dump_stack+0xc1/0x120 [ 35.471077] [<000000002bc2379c>] warn_alloc.cold+0x76/0x93 [ 35.471087] [<00000000e31146c7>] ? zone_watermark_ok_safe+0x260/0x260 [ 35.471096] [<00000000411fc1b5>] ? retint_kernel+0x2d/0x2d [ 35.471105] [<00000000e069c195>] __vmalloc_node_range+0x3ff/0x610 [ 35.471114] [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 [ 35.471127] [<00000000cbfb8bd4>] vmalloc+0x5c/0x70 [ 35.471134] [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 [ 35.471142] [<000000004cfa94a2>] xt_alloc_table_info+0xc8/0x100 [ 35.471151] [<00000000731767d2>] do_ipt_set_ctl+0x231/0x470 [ 35.471160] [<0000000088a38026>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 35.471169] [<000000009019af30>] ? mutex_unlock+0x9/0x10 [ 35.471179] [<00000000306ef511>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 35.471186] [<000000006cb949e2>] nf_setsockopt+0x6d/0xc0 [ 35.471194] [<000000008ca37658>] ip_setsockopt+0x8a/0xa0 [ 35.471202] [<000000009b41bc08>] udp_setsockopt+0x4e/0x90 [ 35.471210] [<00000000851e0e3e>] sock_common_setsockopt+0x9a/0xe0 [ 35.471217] [<000000002efd2f31>] SyS_setsockopt+0x159/0x240 [ 35.471224] [<00000000d6a0d8f1>] ? SyS_recv+0x40/0x40 [ 35.471233] [<00000000abf6e043>] ? __do_page_fault+0x545/0xa60 [ 35.471241] [<00000000cedcea2f>] ? bad_area_access_error+0x3d0/0x3d0 ** 86 printk messages dropped ** [ 35.481737] [ 1763] 0 1763 2492 573 8 3 0 0 dhclient [ 35.481746] [ 1894] 0 1894 14231 109 23 3 0 0 rsyslogd ** 42 printk messages dropped ** [ 35.508239] [<000000004cfa94a2>] xt_alloc_table_info+0xc8/0x100 [ 35.508249] [<00000000731767d2>] do_ipt_set_ctl+0x231/0x470 [ 35.508258] [<0000000088a38026>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 35.508267] [<000000009019af30>] ? mutex_unlock+0x9/0x10 [ 35.508277] [<00000000306ef511>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 35.508285] [<000000006cb949e2>] nf_setsockopt+0x6d/0xc0 [ 35.508293] [<000000008ca37658>] ip_setsockopt+0x8a/0xa0 [ 35.508302] [<000000009b41bc08>] udp_setsockopt+0x4e/0x90 [ 35.508312] [<00000000851e0e3e>] sock_common_setsockopt+0x9a/0xe0 [ 35.508320] [<000000002efd2f31>] SyS_setsockopt+0x159/0x240 [ 35.508328] [<00000000d6a0d8f1>] ? SyS_recv+0x40/0x40 [ 35.508337] [<00000000abf6e043>] ? __do_page_fault+0x545/0xa60 [ 35.508345] [<00000000cedcea2f>] ? bad_area_access_error+0x3d0/0x3d0 [ 35.508352] [<00000000d6a0d8f1>] ? SyS_recv+0x40/0x40 [ 35.508360] [<000000002a4ef442>] do_syscall_64+0x1ad/0x5c0 [ 35.508368] [<000000004aa4f984>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 35.508377] CPU: 1 PID: 2067 Comm: syz-executor821 Tainted: G W 4.9.186+ #12 [ 35.508389] ffff8801c462fa10 ffffffff81b5a0b1 1ffff100388c5f44 dffffc0000000000 [ 35.508392] ffffffff82aaa9c0 [ 35.508393] Mem-Info: [ 35.508412] 0000000000000000 0000000000400000active_anon:1986 inactive_anon:42 isolated_anon:0 [ 35.508413] active_file:0 inactive_file:0 isolated_file:0 [ 35.508413] unevictable:0 dirty:0 writeback:0 unstable:0 [ 35.508413] slab_reclaimable:4278 slab_unreclaimable:56840 [ 35.508413] mapped:14 shmem:48 pagetables:331 bounce:0 [ 35.508413] free:893 free_pcp:0 free_cma:0 [ 35.508428] ffff8801c462fb38Node 0 active_anon:7944kB inactive_anon:168kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:56kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:55 all_unreclaimable? no [ 35.508449] ffffffff81506773 [ 35.508450] 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:4kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB 0000000041b58ab3lowmem_reserve[]: [ 35.508457] ffffffff82e3a4c0 0 ffffffff81430350 3505 3505Call Trace: [ 35.508486] Normal free:3576kB min:5580kB low:9168kB high:12756kB active_anon:7944kB inactive_anon:168kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17112kB slab_unreclaimable:227356kB kernel_stack:3392kB pagetables:1324kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [<0000000065941d4c>] dump_stack+0xc1/0x120 [ 35.508502] lowmem_reserve[]: [ 35.508502] [<000000002bc2379c>] warn_alloc.cold+0x76/0x93 [ 35.508511] 0 [<00000000e31146c7>] ? zone_watermark_ok_safe+0x260/0x260 [ 35.508521] 0 0 [<00000000e069c195>] __vmalloc_node_range+0x3ff/0x610 [ 35.508530] [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 [ 35.508537] DMA32: [<00000000cbfb8bd4>] vmalloc+0x5c/0x70 [ 35.508547] 0*4kB [<000000004cfa94a2>] ? xt_alloc_table_info+0xc8/0x100 [ 35.508557] 0*8kB [<000000004cfa94a2>] xt_alloc_table_info+0xc8/0x100 [ 35.508567] 0*16kB [<00000000731767d2>] do_ipt_set_ctl+0x231/0x470 [ 35.508578] 0*32kB [<0000000088a38026>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 35.508588] 0*64kB [<000000009019af30>] ? mutex_unlock+0x9/0x10 [ 35.508598] 0*128kB [<00000000306ef511>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 35.508608] 0*256kB [<000000006cb949e2>] nf_setsockopt+0x6d/0xc0 [ 35.508617] 0*512kB [<000000008ca37658>] ip_setsockopt+0x8a/0xa0 [ 35.508627] 0*1024kB [<000000009b41bc08>] udp_setsockopt+0x4e/0x90 [ 35.508637] 0*2048kB [<00000000851e0e3e>] sock_common_setsockopt+0x9a/0xe0 [ 35.508646] 0*4096kB [<000000002efd2f31>] SyS_setsockopt+0x159/0x240 [ 35.508648] = 0kB [<00000000d6a0d8f1>] ? SyS_recv+0x40/0x40 [ 35.508664] Normal: [<00000000abf6e043>] ? __do_page_fault+0x545/0xa60 [ 35.508673] 19*4kB [<00000000cedcea2f>] ? bad_area_access_error+0x3d0/0x3d0 [ 35.508682] (H) [<00000000d6a0d8f1>] ? SyS_recv+0x40/0x40 [ 35.508691] 14*8kB [<000000002a4ef442>] do_syscall_64+0x1ad/0x5c0 [ 35.508699] (H) [<000000004aa4f984>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 35.508703] 20*16kB Mem-Info: [ 35.508719] (H) active_anon:1986 inactive_anon:42 isolated_anon:0 [ 35.508720] active_file:0 inactive_file:0 isolated_file:0 [ 35.508720] unevictable:0 dirty:0 writeback:0 unstable:0 [ 35.508720] slab_reclaimable:4278 slab_unreclaimable:56840 [ 35.508720] mapped:14 shmem:48 pagetables:331 bounce:0 [ 35.508720] free:893 free_pcp:0 free_cma:0