[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [ 10.351906] random: sshd: uninitialized urandom read (32 bytes read) [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 22.100625] random: crng init done Warning: Permanently added '10.128.10.34' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 35.710315] lowmemorykiller: Killing 'syz-executor126' (2052) (tgid 2052), adj 1000, [ 35.710315] to free 44kB on behalf of 'kswapd0' (33) because [ 35.710315] cache 36552kB is below limit 65536kB for oom_score_adj 12 [ 35.710315] Free memory is -13128kB above reserved [ 35.740249] lowmemorykiller: Killing 'syz-executor126' (2052) (tgid 2052), adj 1000, [ 35.740249] to free 44kB on behalf of 'syz-executor126' (2052) because [ 35.740249] cache 34252kB is below limit 65536kB for oom_score_adj 12 [ 35.740249] Free memory is -12860kB above reserved [ 35.740271] [ 35.740272] ================================= [ 35.740274] [ INFO: inconsistent lock state ] [ 35.740278] 4.9.191+ #0 Not tainted [ 35.740279] --------------------------------- [ 35.740282] inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-R} usage. [ 35.740288] syz-executor126/2052 [HC0[0]:SC0[0]:HE1:SE1] takes: [ 35.740306] (&mm->mmap_sem){+++++?}, at: [<000000006f48fbfd>] get_cmdline+0xa3/0x2d0 {RECLAIM_FS-ON-W} state was registered at: [ 35.740316] mark_held_locks+0xb1/0x100 [ 35.740321] lockdep_trace_alloc+0x18c/0x2b0 [ 35.740327] __alloc_pages_nodemask+0x143/0x1a80 [ 35.740334] __pmd_alloc+0x4a/0x330 [ 35.740340] move_page_tables+0xadb/0xd60 [ 35.740346] shift_arg_pages+0x1ae/0x470 [ 35.740351] setup_arg_pages+0x60d/0x7c0 [ 35.740360] load_elf_binary+0xa84/0x4a90 [ 35.740365] search_binary_handler+0x14f/0x700 [ 35.740370] do_execveat_common.isra.0+0xf81/0x1db0 [ 35.740374] do_execve+0x3a/0x50 [ 35.740380] run_init_process+0x33/0x37 [ 35.740387] try_to_run_init_process+0x18/0x48 [ 35.740394] kernel_init+0xf2/0x163 [ 35.740400] ret_from_fork+0x5c/0x70 [ 35.740402] irq event stamp: 592245 [ 35.740411] hardirqs last enabled at (592245): [<00000000382f56b2>] vprintk_emit+0x25c/0x6f0 [ 35.740417] hardirqs last disabled at (592244): [<00000000cc7cce98>] vprintk_emit+0x6d/0x6f0 [ 35.740425] softirqs last enabled at (592072): [<00000000fcd6ec3d>] __do_softirq+0x474/0x964 [ 35.740433] softirqs last disabled at (592065): [<00000000bb5b4390>] irq_exit+0x119/0x160 [ 35.740435] [ 35.740435] other info that might help us debug this: [ 35.740437] Possible unsafe locking scenario: [ 35.740437] [ 35.740438] CPU0 [ 35.740439] ---- [ 35.740443] lock(&mm->mmap_sem); [ 35.740444] [ 35.740447] lock(&mm->mmap_sem); [ 35.740449] [ 35.740449] *** DEADLOCK *** [ 35.740449] [ 35.740452] 1 lock held by syz-executor126/2052: [ 35.740465] #0: (shrinker_rwsem){++++..}, at: [<00000000677ce4f9>] shrink_slab.part.0+0xb2/0xa20 [ 35.740467] [ 35.740467] stack backtrace: [ 35.740474] CPU: 0 PID: 2052 Comm: syz-executor126 Not tainted 4.9.191+ #0 [ 35.740487] ffff8801cedc7060 ffffffff81b67171 00000000000000f0 ffff8801cf5f8000 [ 35.740496] ffffffff83cb07e0 ffff8801cf5f88f8 ffffffff84252000 ffff8801cedc70d8 [ 35.740505] ffffffff814088a0 0000000000000000 ffffffff00000001 0000000000000001 [ 35.740506] Call Trace: [ 35.740516] [<00000000ba624d81>] dump_stack+0xc1/0x120 [ 35.740525] [<00000000b0bb4ad6>] print_usage_bug.cold+0x452/0x5a2 [ 35.740531] [<00000000a223cd1f>] mark_lock+0x6c7/0x12e0 [ 35.740537] [<00000000fa98b985>] ? print_irq_inversion_bug+0xa0/0xa0 [ 35.740544] [<000000005386a3b0>] __lock_acquire+0x5be/0x4390 [ 35.740552] [<0000000072129a71>] ? trace_hardirqs_on+0x10/0x10 [ 35.740558] [<0000000072129a71>] ? trace_hardirqs_on+0x10/0x10 [ 35.740567] [<0000000061a5bc8c>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 35.740574] [<00000000d8f1d886>] lock_acquire+0x133/0x3d0 [ 35.740580] [<000000006f48fbfd>] ? get_cmdline+0xa3/0x2d0 [ 35.740586] [<00000000f9397cf7>] down_read+0x44/0xb0 [ 35.740591] [<000000006f48fbfd>] ? get_cmdline+0xa3/0x2d0 [ 35.740596] [<000000006f48fbfd>] get_cmdline+0xa3/0x2d0 [ 35.740605] [<00000000a3a25f1e>] handle_lmk_event+0x169/0x920 [ 35.740612] [<00000000e1327797>] ? lmk_event_show+0x390/0x390 [ 35.740616] [<0000000020326004>] ? vprintk+0x28/0x30 [ 35.740621] [<0000000061a5bc8c>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 35.740626] [<00000000cb3b5cb9>] ? kill_pid_info_as_cred+0x540/0x540 [ 35.740633] [<000000005505e7c3>] ? check_preemption_disabled+0x3c/0x200 [ 35.740638] [<000000005505e7c3>] ? check_preemption_disabled+0x3c/0x200 [ 35.740643] [<000000005505e7c3>] ? check_preemption_disabled+0x3c/0x200 [ 35.740647] [<0000000099abe6bf>] ? lowmem_scan+0x6ae/0xb70 [ 35.740652] [<00000000d79ae518>] lowmem_scan+0x6f3/0xb70 [ 35.740658] [<000000003429a2e7>] shrink_slab.part.0+0x3cf/0xa20 [ 35.740663] [<00000000e9ab05d7>] ? unregister_shrinker+0x230/0x230 [ 35.740668] [<000000005505e7c3>] ? check_preemption_disabled+0x3c/0x200 [ 35.740673] [<000000005505e7c3>] ? check_preemption_disabled+0x3c/0x200 [ 35.740679] [<000000006e75bbda>] shrink_node+0x1ed/0x750 [ 35.740684] [<0000000086de81c6>] ? shrink_node_memcg.isra.0+0x1360/0x1360 [ 35.740690] [<000000001d9298a0>] ? wakeup_flusher_threads+0x27c/0x480 [ 35.740695] [<00000000be21047c>] ? wakeup_flusher_threads+0xdb/0x480 [ 35.740705] [<000000007a730c1f>] try_to_free_pages+0x397/0xbd0 [ 35.740710] [<000000008f97ffef>] ? shrink_node+0x750/0x750 [ 35.740715] [<0000000000a4f729>] __alloc_pages_nodemask+0x930/0x1a80 [ 35.740720] [<000000007717fe00>] ? __schedule+0x6d6/0x1f10 [ 35.740724] [<00000000058b8fa4>] ? retint_kernel+0x2d/0x2d [ 35.740729] [<000000007603d3a5>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 35.740733] [<00000000b6a5f8f8>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 35.740738] [<00000000f2659a56>] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 35.740743] [<00000000058b8fa4>] ? retint_kernel+0x2d/0x2d [ 35.740749] [<00000000da4c0bd2>] __vmalloc_node_range+0x25b/0x610 [ 35.740756] [<000000003eda3af0>] ? xt_alloc_table_info+0xc8/0x100 [ 35.740761] [<000000008a4c0e4e>] vmalloc+0x5c/0x70 [ 35.740766] [<000000003eda3af0>] ? xt_alloc_table_info+0xc8/0x100 [ 35.740770] [<000000003eda3af0>] xt_alloc_table_info+0xc8/0x100 [ 35.740776] [<00000000c11ca23d>] do_ipt_set_ctl+0x231/0x470 [ 35.740781] [<0000000078919698>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 35.740785] [<00000000b612ba52>] ? mutex_unlock+0x9/0x10 executing program executing program executing program [ 35.740792] [<0000000023e8386f>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 35.740797] [<00000000ac6097d6>] nf_setsockopt+0x6d/0xc0 [ 35.740803] [<00000000b4c9c942>] ip_setsockopt+0x8a/0xa0 [ 35.740808] [<000000000db37be5>] tcp_setsockopt+0x8a/0xe0 [ 35.740815] [<0000000092222426>] sock_common_setsockopt+0x9a/0xe0 [ 35.740820] [<000000003970f8bc>] SyS_setsockopt+0x159/0x240 [ 35.740825] [<0000000077700341>] ? SyS_recv+0x40/0x40 [ 35.740829] [<00000000352c4c37>] ? do_syscall_64+0x4a/0x5c0 [ 35.740834] [<0000000077700341>] ? SyS_recv+0x40/0x40 [ 35.740838] [<000000001914fea3>] do_syscall_64+0x1ad/0x5c0 [ 35.740843] [<000000003ccaa0de>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 35.850991] oom_reaper: reaped process 2052 (syz-executor126), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 35.857597] syz-executor126 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 [ 35.857604] CPU: 0 PID: 2059 Comm: syz-executor126 Not tainted 4.9.191+ #0 [ 35.857618] ffff8801ced07730 ffffffff81b67171 ffff8801ced07a88 ffffffff833f1c30 [ 35.857626] 00000000000003e8 ffff8801ced07aa0 0000000000000000 ffff8801ced077b0 [ 35.857635] ffffffff81506fd4 0000000000000000 00000000000003e8 ffffffff8282a8c5 [ 35.857636] Call Trace: [ 35.857650] [<00000000ba624d81>] dump_stack+0xc1/0x120 [ 35.857660] [<000000000127c754>] dump_header.isra.0+0x142/0x74c [ 35.857669] [<00000000d6b9d8ea>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 35.857677] [<00000000b8780a42>] ? ___ratelimit+0x55/0x413 [ 35.857684] [<0000000065c5921f>] oom_kill_process.cold+0xd/0xa74 [ 35.857696] [<000000000b451114>] ? has_capability_noaudit+0x25/0x30 [ 35.857706] [<000000006b64ef86>] ? oom_badness.part.0+0x11d/0x600 [ 35.857713] [<000000007f3d9887>] ? oom_badness.part.0+0x12f/0x600 [ 35.857719] [<0000000069a0410e>] ? out_of_memory+0x6d3/0xea0 [ 35.857726] [<00000000a0ba94ee>] out_of_memory+0x29b/0xea0 [ 35.857733] [<00000000c87535da>] ? out_of_memory+0x41c/0xea0 [ 35.857741] [<00000000b7af1e23>] ? oom_killer_disable+0x210/0x210 [ 35.857748] [<00000000eaedae5b>] ? trace_hardirqs_on+0xd/0x10 [ 35.857755] [<000000007e09b099>] ? __alloc_pages_nodemask+0x10d0/0x1a80 [ 35.857761] [<0000000084a051c6>] __alloc_pages_nodemask+0x1730/0x1a80 [ 35.857768] [<000000007603d3a5>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 35.857775] [<00000000058b8fa4>] ? retint_kernel+0x2d/0x2d [ 35.857783] [<00000000da4c0bd2>] __vmalloc_node_range+0x25b/0x610 [ 35.857793] [<000000003eda3af0>] ? xt_alloc_table_info+0xc8/0x100 [ 35.857799] [<000000008a4c0e4e>] vmalloc+0x5c/0x70 [ 35.857806] [<000000003eda3af0>] ? xt_alloc_table_info+0xc8/0x100 [ 35.857813] [<000000003eda3af0>] xt_alloc_table_info+0xc8/0x100 [ 35.857820] [<00000000c11ca23d>] do_ipt_set_ctl+0x231/0x470 [ 35.857826] [<0000000078919698>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 35.857833] [<00000000b612ba52>] ? mutex_unlock+0x9/0x10 [ 35.857841] [<0000000023e8386f>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 35.857848] [<00000000ac6097d6>] nf_setsockopt+0x6d/0xc0 [ 35.857854] [<00000000b4c9c942>] ip_setsockopt+0x8a/0xa0 [ 35.857861] [<000000000db37be5>] tcp_setsockopt+0x8a/0xe0 [ 35.857869] [<0000000092222426>] sock_common_setsockopt+0x9a/0xe0 [ 35.857876] [<000000003970f8bc>] SyS_setsockopt+0x159/0x240 [ 35.857882] [<0000000077700341>] ? SyS_recv+0x40/0x40 [ 35.857889] [<00000000352c4c37>] ? do_syscall_64+0x4a/0x5c0 [ 35.857895] [<0000000077700341>] ? SyS_recv+0x40/0x40 [ 35.857901] [<000000001914fea3>] do_syscall_64+0x1ad/0x5c0 [ 35.857908] [<000000003ccaa0de>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 35.857911] Mem-Info: [ 35.857926] active_anon:3190 inactive_anon:40 isolated_anon:0 [ 35.857926] active_file:2 inactive_file:34 isolated_file:0 [ 35.857926] unevictable:0 dirty:9 writeback:0 unstable:0 [ 35.857926] slab_reclaimable:4252 slab_unreclaimable:56644 [ 35.857926] mapped:16 shmem:48 pagetables:359 bounce:0 [ 35.857926] free:6028 free_pcp:67 free_cma:0 [ 35.857937] Node 0 active_anon:12760kB inactive_anon:160kB active_file:8kB inactive_file:136kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:64kB dirty:36kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 35.857954] DMA32 free:18624kB 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:0kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 35.857977] Normal free:5488kB min:5580kB low:9168kB high:12756kB active_anon:12760kB inactive_anon:160kB active_file:8kB inactive_file:136kB unevictable:0kB writepending:36kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17008kB slab_unreclaimable:226576kB kernel_stack:3424kB pagetables:1436kB bounce:0kB free_pcp:148kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 35.858022] DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (M) 2*32kB (UM) 1*64kB (M) 4*128kB (UM) 4*256kB (UM) 1*512kB (M) 2*1024kB (M) 1*2048kB (M) 3*4096kB (M) = 18624kB Normal: 397*4kB (UM) 212*8kB (M) 75*16kB (M) 30*32kB (UM) 1*64kB (M) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5508kB 93 total pagecache pages [ 35.858058] 0 pages in swap cache [ 35.858061] Swap cache stats: add 0, delete 0, find 0/0 [ 35.858063] Free swap = 0kB [ 35.858065] Total swap = 0kB [ 35.858067] 1965979 pages RAM [ 35.858068] 0 pages HighMem/MovableOnly [ 35.858070] 313627 pages reserved [ 35.858072] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 35.858084] [ 470] 0 470 5384 185 16 3 0 -1000 udevd [ 35.858092] [ 583] 0 583 5364 168 15 3 0 -1000 udevd [ 35.858100] [ 584] 0 584 5364 168 15 3 0 -1000 udevd [ 35.858108] [ 1758] 0 1758 2492 573 9 3 0 0 dhclient [ 35.858116] [ 1891] 0 1891 30582 108 24 3 0 0 rsyslogd [ 35.858123] [ 1944] 0 1944 4724 51 15 3 0 0 cron [ 35.858131] [ 1964] 0 1964 3735 45 12 3 0 0 mcstransd [ 35.858138] [ 1969] 0 1969 12926 1228 27 3 0 0 restorecond [ 35.858147] [ 1991] 0 1991 12489 152 28 3 0 -1000 sshd [ 35.858155] [ 2022] 0 2022 3648 40 13 3 0 0 getty [ 35.858162] [ 2041] 0 2041 3648 44 12 3 0 0 getty [ 35.858170] [ 2042] 0 2042 3648 43 13 3 0 0 getty [ 35.858178] [ 2043] 0 2043 3648 43 13 4 0 0 getty [ 35.858187] [ 2044] 0 2044 3648 42 12 3 0 0 getty [ 35.858194] [ 2045] 0 2045 3648 42 13 3 0 0 getty [ 35.858203] [ 2046] 0 2046 3648 42 13 3 0 0 getty [ 35.858212] [ 2047] 0 2047 17820 199 40 3 0 0 sshd [ 35.858220] [ 2049] 0 2049 4380 1 4 2 0 0 syz-executor126 [ 35.858229] [ 2050] 0 2050 4380 11 4 2 0 0 syz-executor126 [ 35.858239] [ 2051] 0 2051 4380 11 4 2 0 0 syz-executor126 [ 35.858247] [ 2052] 0 2052 4380 0 5 2 0 1000 syz-executor126 [ 35.858255] [ 2053] 0 2053 4380 11 4 2 0 0 syz-executor126 [ 35.858263] [ 2054] 0 2054 4380 11 4 2 0 0 syz-executor126 [ 35.858270] [ 2055] 0 2055 4380 11 4 2 0 0 syz-executor126 [ 35.858278] [ 2056] 0 2056 4380 11 4 2 0 0 syz-executor126 [ 35.858286] [ 2057] 0 2057 4380 11 5 2 0 1000 syz-executor126 [ 35.858294] [ 2058] 0 2058 4380 11 5 2 0 1000 syz-executor126 [ 35.858302] [ 2059] 0 2059 4380 11 5 2 0 1000 syz-executor126 [ 35.858309] [ 2060] 0 2060 4380 11 5 2 0 1000 syz-executor126 [ 35.858317] [ 2061] 0 2061 4380 11 5 2 0 1000 syz-executor126 [ 35.858323] Out of memory: Kill process 2057 (syz-executor126) score 999 or sacrifice child executing program [ 35.858333] Killed process 2057 (syz-executor126) total-vm:17520kB, anon-rss:44kB, file-rss:0kB, shmem-rss:0kB [ 35.871961] oom_reaper: reaped process 2057 (syz-executor126), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 35.879666] syz-executor126 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 [ 35.879672] CPU: 0 PID: 2059 Comm: syz-executor126 Not tainted 4.9.191+ #0 [ 35.879683] ffff8801ced07730 ffffffff81b67171 ffff8801ced07a88 ffffffff833f1c30 [ 35.879696] 00000000000003e8 ffff8801ced07aa0 0000000000000000 ffff8801ced077b0 [ 35.879704] ffffffff81506fd4 0000000000000000 00000000000003e8 ffffffff8282a8c5 [ 35.879705] Call Trace: [ 35.879715] [<00000000ba624d81>] dump_stack+0xc1/0x120 [ 35.879724] [<000000000127c754>] dump_header.isra.0+0x142/0x74c [ 35.879731] [<00000000d6b9d8ea>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 35.879739] [<00000000b8780a42>] ? ___ratelimit+0x55/0x413 [ 35.879746] [<0000000065c5921f>] oom_kill_process.cold+0xd/0xa74 executing program [ 35.879754] [<000000000b451114>] ? has_capability_noaudit+0x25/0x30 [ 35.879761] [<000000006b64ef86>] ? oom_badness.part.0+0x11d/0x600 [ 35.879767] [<000000007f3d9887>] ? oom_badness.part.0+0x12f/0x600 [ 35.879774] [<0000000069a0410e>] ? out_of_memory+0x6d3/0xea0 [ 35.879781] [<00000000a0ba94ee>] out_of_memory+0x29b/0xea0 [ 35.879787] [<00000000c87535da>] ? out_of_memory+0x41c/0xea0 [ 35.879794] [<00000000b7af1e23>] ? oom_killer_disable+0x210/0x210 [ 35.879801] [<00000000eaedae5b>] ? trace_hardirqs_on+0xd/0x10 [ 35.879807] [<000000007e09b099>] ? __alloc_pages_nodemask+0x10d0/0x1a80 [ 35.879814] [<0000000084a051c6>] __alloc_pages_nodemask+0x1730/0x1a80 [ 35.879820] [<000000007603d3a5>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 35.879827] [<00000000058b8fa4>] ? retint_kernel+0x2d/0x2d [ 35.879835] [<00000000da4c0bd2>] __vmalloc_node_range+0x25b/0x610 [ 35.879843] [<000000003eda3af0>] ? xt_alloc_table_info+0xc8/0x100 [ 35.879849] [<000000008a4c0e4e>] vmalloc+0x5c/0x70 [ 35.879856] [<000000003eda3af0>] ? xt_alloc_table_info+0xc8/0x100 [ 35.879862] [<000000003eda3af0>] xt_alloc_table_info+0xc8/0x100 [ 35.879869] [<00000000c11ca23d>] do_ipt_set_ctl+0x231/0x470 [ 35.879875] [<0000000078919698>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 35.879893] [<00000000b612ba52>] ? mutex_unlock+0x9/0x10 [ 35.879900] [<0000000023e8386f>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 35.879906] [<00000000ac6097d6>] nf_setsockopt+0x6d/0xc0 [ 35.879912] [<00000000b4c9c942>] ip_setsockopt+0x8a/0xa0 [ 35.879935] [<000000000db37be5>] tcp_setsockopt+0x8a/0xe0 [ 35.879943] [<0000000092222426>] sock_common_setsockopt+0x9a/0xe0 [ 35.879949] [<000000003970f8bc>] SyS_setsockopt+0x159/0x240 [ 35.879956] [<0000000077700341>] ? SyS_recv+0x40/0x40 [ 35.879962] [<00000000352c4c37>] ? do_syscall_64+0x4a/0x5c0 [ 35.879969] [<0000000077700341>] ? SyS_recv+0x40/0x40 [ 35.879974] [<000000001914fea3>] do_syscall_64+0x1ad/0x5c0 [ 35.879981] [<000000003ccaa0de>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 35.879984] Mem-Info: [ 35.879997] active_anon:3196 inactive_anon:40 isolated_anon:0 [ 35.879997] active_file:7 inactive_file:24 isolated_file:0 [ 35.879997] unevictable:0 dirty:0 writeback:0 unstable:0 [ 35.879997] slab_reclaimable:4252 slab_unreclaimable:56667 [ 35.879997] mapped:7 shmem:48 pagetables:359 bounce:0 [ 35.879997] free:6033 free_pcp:74 free_cma:0 [ 35.880008] Node 0 active_anon:12784kB inactive_anon:160kB active_file:28kB inactive_file:96kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:28kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 35.880023] DMA32 free:18624kB 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:0kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 35.880049] Normal free:5508kB min:5580kB low:9168kB high:12756kB active_anon:12784kB inactive_anon:160kB active_file:28kB inactive_file:96kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17008kB slab_unreclaimable:226668kB kernel_stack:3424kB pagetables:1436kB bounce:0kB free_pcp:176kB local_pcp:28kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 35.880122] DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (M) 2*32kB (UM) 1*64kB (M) 4*128kB (UM) 4*256kB (UM) 1*512kB (M) 2*1024kB (M) 1*2048kB (M) 3*4096kB (M) = 18624kB Normal: 397*4kB (UM) 212*8kB (M) 75*16kB (M) 30*32kB (UM) 1*64kB (M) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5508kB 79 total pagecache pages [ 35.880156] 0 pages in swap cache [ 35.880159] Swap cache stats: add 0, delete 0, find 0/0 [ 35.880161] Free swap = 0kB [ 35.880163] Total swap = 0kB [ 35.880165] 1965979 pages RAM [ 35.880166] 0 pages HighMem/MovableOnly [ 35.880168] 313627 pages reserved [ 35.880170] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 35.880180] [ 470] 0 470 5384 185 16 3 0 -1000 udevd [ 35.880188] [ 583] 0 583 5364 168 15 3 0 -1000 udevd [ 35.880197] [ 584] 0 584 5364 168 15 3 0 -1000 udevd [ 35.880204] [ 1758] 0 1758 2492 573 9 3 0 0 dhclient [ 35.880212] [ 1891] 0 1891 30582 108 24 3 0 0 rsyslogd [ 35.880219] [ 1944] 0 1944 4724 51 15 3 0 0 cron [ 35.880227] [ 1964] 0 1964 3735 45 12 3 0 0 mcstransd [ 35.880234] [ 1969] 0 1969 12926 1228 27 3 0 0 restorecond [ 35.880242] [ 1991] 0 1991 12489 152 28 3 0 -1000 sshd [ 35.880249] [ 2022] 0 2022 3648 40 13 3 0 0 getty [ 35.880256] [ 2041] 0 2041 3648 44 12 3 0 0 getty [ 35.880264] [ 2042] 0 2042 3648 43 13 3 0 0 getty [ 35.880271] [ 2043] 0 2043 3648 43 13 4 0 0 getty [ 35.880278] [ 2044] 0 2044 3648 42 12 3 0 0 getty [ 35.880286] [ 2045] 0 2045 3648 42 13 3 0 0 getty [ 35.880293] [ 2046] 0 2046 3648 42 13 3 0 0 getty [ 35.880300] [ 2047] 0 2047 17820 199 40 3 0 0 sshd [ 35.880308] [ 2049] 0 2049 4380 1 4 2 0 0 syz-executor126 [ 35.880315] [ 2050] 0 2050 4380 11 4 2 0 0 syz-executor126 [ 35.880323] [ 2051] 0 2051 4380 11 4 2 0 0 syz-executor126 executing program [ 35.880330] [ 2052] 0 2052 4380 0 5 2 0 1000 syz-executor126 [ 35.880338] [ 2053] 0 2053 4380 11 4 2 0 0 syz-executor126 executing program [ 35.880345] [ 2054] 0 2054 4380 11 4 2 0 0 syz-executor126 [ 35.880353] [ 2055] 0 2055 4380 11 4 2 0 0 syz-executor126 executing program [ 35.880360] [ 2056] 0 2056 4380 11 4 2 0 0 syz-executor126 [ 35.880368] [ 2057] 0 2057 4380 0 5 2 0 1000 syz-executor126 [ 35.880376] [ 2058] 0 2058 4380 11 5 2 0 1000 syz-executor126 [ 35.880383] [ 2059] 0 2059 4380 11 5 2 0 1000 syz-executor126 [ 35.880391] [ 2060] 0 2060 4380 11 5 2 0 1000 syz-executor126 [ 35.880398] [ 2061] 0 2061 4380 11 5 2 0 1000 syz-executor126 [ 35.880402] Out of memory: Kill process 2058 (syz-executor126) score 999 or sacrifice child [ 35.880411] Killed process 2058 (syz-executor126) total-vm:17520kB, anon-rss:44kB, file-rss:0kB, shmem-rss:0kB [ 35.898670] syz-executor126: vmalloc: allocation failure, allocated 1105027072 of 4294975488 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 35.898676] CPU: 0 PID: 2058 Comm: syz-executor126 Not tainted 4.9.191+ #0 [ 35.898692] ffff8801ced1fa08 ffffffff81b67171 1ffff10039da3f43 dffffc0000000000 [ 35.898701] ffffffff82aab400 0000000000000000 0000000000400000 ffff8801ced1fb30 [ 35.898710] ffffffff8150828c 0000000041b58ab3 ffffffff82e3bbf0 ffffffff81431e90 [ 35.898711] Call Trace: [ 35.898721] [<00000000ba624d81>] dump_stack+0xc1/0x120 [ 35.898729] [<0000000056209f5e>] warn_alloc.cold+0x76/0x93 [ 35.898735] [<0000000073e13c92>] ? zone_watermark_ok_safe+0x260/0x260 [ 35.898743] [<0000000032fa61e5>] __vmalloc_node_range+0x404/0x610 [ 35.898751] [<000000003eda3af0>] ? xt_alloc_table_info+0xc8/0x100 [ 35.898757] [<000000008a4c0e4e>] vmalloc+0x5c/0x70 [ 35.898764] [<000000003eda3af0>] ? xt_alloc_table_info+0xc8/0x100 [ 35.898771] [<000000003eda3af0>] xt_alloc_table_info+0xc8/0x100 [ 35.898777] [<00000000c11ca23d>] do_ipt_set_ctl+0x231/0x470 [ 35.898784] [<0000000078919698>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 35.898790] [<00000000b612ba52>] ? mutex_unlock+0x9/0x10 [ 35.898798] [<0000000023e8386f>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 35.898805] [<00000000ac6097d6>] nf_setsockopt+0x6d/0xc0 [ 35.898811] [<00000000b4c9c942>] ip_setsockopt+0x8a/0xa0 [ 35.898818] [<000000000db37be5>] tcp_setsockopt+0x8a/0xe0 [ 35.898825] [<0000000092222426>] sock_common_setsockopt+0x9a/0xe0 [ 35.898833] [<000000003970f8bc>] SyS_setsockopt+0x159/0x240 [ 35.898839] [<0000000077700341>] ? SyS_recv+0x40/0x40 [ 35.898846] [<00000000352c4c37>] ? do_syscall_64+0x4a/0x5c0 [ 35.898852] [<0000000077700341>] ? SyS_recv+0x40/0x40 [ 35.898858] [<000000001914fea3>] do_syscall_64+0x1ad/0x5c0 [ 35.898866] [<000000003ccaa0de>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 35.898868] Mem-Info: [ 35.898882] active_anon:3189 inactive_anon:40 isolated_anon:0 [ 35.898882] active_file:7 inactive_file:24 isolated_file:0 [ 35.898882] unevictable:0 dirty:0 writeback:0 unstable:0 [ 35.898882] slab_reclaimable:4252 slab_unreclaimable:56667 [ 35.898882] mapped:7 shmem:48 pagetables:359 bounce:0 [ 35.898882] free:5 free_pcp:0 free_cma:0 [ 35.898893] Node 0 active_anon:12756kB inactive_anon:160kB active_file:28kB inactive_file:96kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:28kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 35.898908] DMA32 free:16kB 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:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 35.898930] Normal free:4kB min:5580kB low:9168kB high:12756kB active_anon:12756kB inactive_anon:160kB active_file:28kB inactive_file:96kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17008kB slab_unreclaimable:226668kB kernel_stack:3424kB pagetables:1436kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 35.898961] 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: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 79 total pagecache pages [ 35.898989] 0 pages in swap cache [ 35.898992] Swap cache stats: add 0, delete 0, find 0/0 [ 35.898994] Free swap = 0kB [ 35.898996] Total swap = 0kB [ 35.898998] 1965979 pages RAM [ 35.899000] 0 pages HighMem/MovableOnly [ 35.899001] 313627 pages reserved [ 35.901171] oom_reaper: reaped process 2058 (syz-executor126), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 35.910868] syz-executor126: vmalloc: allocation failure, allocated 1140436992 of 4294975488 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 35.910888] CPU: 1 PID: 2057 Comm: syz-executor126 Not tainted 4.9.191+ #0 [ 35.910900] ffff8801ced27a08 ffffffff81b67171 1ffff10039da4f43 dffffc0000000000 [ 35.910910] ffffffff82aab400 0000000000000000 0000000000400000 ffff8801ced27b30 [ 35.910919] ffffffff8150828c 0000000041b58ab3 ffffffff82e3bbf0 ffffffff81431e90 [ 35.910921] Call Trace: [ 35.910930] [<00000000ba624d81>] dump_stack+0xc1/0x120 [ 35.910938] [<0000000056209f5e>] warn_alloc.cold+0x76/0x93 [ 35.910962] [<0000000073e13c92>] ? zone_watermark_ok_safe+0x260/0x260 [ 35.910970] [<00000000baea71f3>] ? debug_lockdep_rcu_enabled+0x8/0xa0 [ 35.910978] [<0000000032fa61e5>] __vmalloc_node_range+0x404/0x610 [ 35.910987] [<000000003eda3af0>] ? xt_alloc_table_info+0xc8/0x100 [ 35.910993] [<000000008a4c0e4e>] vmalloc+0x5c/0x70 [ 35.911001] [<000000003eda3af0>] ? xt_alloc_table_info+0xc8/0x100 [ 35.911008] [<000000003eda3af0>] xt_alloc_table_info+0xc8/0x100 [ 35.911015] [<00000000c11ca23d>] do_ipt_set_ctl+0x231/0x470 [ 35.911022] [<0000000078919698>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 35.911029] [<00000000b612ba52>] ? mutex_unlock+0x9/0x10 [ 35.911037] [<0000000023e8386f>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 35.911044] [<00000000ac6097d6>] nf_setsockopt+0x6d/0xc0 [ 35.911051] [<00000000b4c9c942>] ip_setsockopt+0x8a/0xa0 [ 35.911058] [<000000000db37be5>] tcp_setsockopt+0x8a/0xe0 [ 35.911066] [<0000000092222426>] sock_common_setsockopt+0x9a/0xe0 [ 35.911074] [<000000003970f8bc>] SyS_setsockopt+0x159/0x240 [ 35.911081] [<0000000077700341>] ? SyS_recv+0x40/0x40 [ 35.911088] [<00000000352c4c37>] ? do_syscall_64+0x4a/0x5c0 [ 35.911095] [<0000000077700341>] ? SyS_recv+0x40/0x40 [ 35.911101] [<000000001914fea3>] do_syscall_64+0x1ad/0x5c0 [ 35.911109] [<000000003ccaa0de>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 35.911112] Mem-Info: [ 35.911127] active_anon:3189 inactive_anon:40 isolated_anon:0 [ 35.911127] active_file:7 inactive_file:24 isolated_file:0 [ 35.911127] unevictable:0 dirty:0 writeback:0 unstable:0 [ 35.911127] slab_reclaimable:4252 slab_unreclaimable:56667 [ 35.911127] mapped:7 shmem:48 pagetables:359 bounce:0 [ 35.911127] free:5 free_pcp:7 free_cma:0 [ 35.911139] Node 0 active_anon:12756kB inactive_anon:160kB active_file:28kB inactive_file:96kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:28kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 35.911155] DMA32 free:16kB 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:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 35.911180] Normal free:4kB min:5580kB low:9168kB high:12756kB active_anon:12756kB inactive_anon:160kB active_file:28kB inactive_file:96kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17008kB slab_unreclaimable:226668kB kernel_stack:3424kB pagetables:1436kB bounce:0kB free_pcp:28kB local_pcp:0kB free_cma:0kB executing program executing program lowmem_reserve[]: 0 0 0 [ 35.911218] 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: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 79 total pagecache pages [ 35.911248] 0 pages in swap cache [ 35.911252] Swap cache stats: add 0, delete 0, find 0/0 [ 35.911254] Free swap = 0kB [ 35.911256] Total swap = 0kB [ 35.911258] 1965979 pages RAM [ 35.911260] 0 pages HighMem/MovableOnly [ 35.911261] 313627 pages reserved [ 35.920094] syz-executor126: vmalloc: allocation failure, allocated 1201893376 of 4294975488 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 35.920099] CPU: 0 PID: 2052 Comm: syz-executor126 Not tainted 4.9.191+ #0 [ 35.920109] ffff8801cedc7a08 ffffffff81b67171 1ffff10039db8f43 dffffc0000000000 [ 35.920119] ffffffff82aab400 0000000000000000 0000000000400000 ffff8801cedc7b30 [ 35.920127] ffffffff8150828c 0000000041b58ab3 ffffffff82e3bbf0 ffffffff81431e90 [ 35.920129] Call Trace: [ 35.920137] [<00000000ba624d81>] dump_stack+0xc1/0x120 [ 35.920144] [<0000000056209f5e>] warn_alloc.cold+0x76/0x93 executing program [ 35.920151] [<0000000073e13c92>] ? zone_watermark_ok_safe+0x260/0x260 [ 35.920158] [<0000000032fa61e5>] __vmalloc_node_range+0x404/0x610 [ 35.920166] [<000000003eda3af0>] ? xt_alloc_table_info+0xc8/0x100 [ 35.920172] [<000000008a4c0e4e>] vmalloc+0x5c/0x70 [ 35.920178] [<000000003eda3af0>] ? xt_alloc_table_info+0xc8/0x100 [ 35.920185] [<000000003eda3af0>] xt_alloc_table_info+0xc8/0x100 [ 35.920190] [<00000000c11ca23d>] do_ipt_set_ctl+0x231/0x470 [ 35.920196] [<0000000078919698>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 35.920203] [<00000000b612ba52>] ? mutex_unlock+0x9/0x10 [ 35.920210] [<0000000023e8386f>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 35.920216] [<00000000ac6097d6>] nf_setsockopt+0x6d/0xc0 [ 35.920222] [<00000000b4c9c942>] ip_setsockopt+0x8a/0xa0 [ 35.920229] [<000000000db37be5>] tcp_setsockopt+0x8a/0xe0 [ 35.920236] [<0000000092222426>] sock_common_setsockopt+0x9a/0xe0 [ 35.920243] [<000000003970f8bc>] SyS_setsockopt+0x159/0x240 [ 35.920249] [<0000000077700341>] ? SyS_recv+0x40/0x40 [ 35.920255] [<00000000352c4c37>] ? do_syscall_64+0x4a/0x5c0 [ 35.920262] [<0000000077700341>] ? SyS_recv+0x40/0x40 [ 35.920267] [<000000001914fea3>] do_syscall_64+0x1ad/0x5c0 [ 35.920272] [<000000003ccaa0de>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 35.920275] Mem-Info: [ 35.920288] active_anon:3189 inactive_anon:40 isolated_anon:0 executing program [ 35.920288] active_file:7 inactive_file:24 isolated_file:0 [ 35.920288] unevictable:0 dirty:0 writeback:0 unstable:0 [ 35.920288] slab_reclaimable:4252 slab_unreclaimable:56667 [ 35.920288] mapped:7 shmem:48 pagetables:359 bounce:0 [ 35.920288] free:5 free_pcp:7 free_cma:0 [ 35.920299] Node 0 active_anon:12756kB inactive_anon:160kB active_file:28kB inactive_file:96kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:28kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 35.920313] DMA32 free:16kB 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:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 35.920334] Normal free:4kB min:5580kB low:9168kB high:12756kB active_anon:12756kB inactive_anon:160kB active_file:28kB inactive_file:96kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17008kB slab_unreclaimable:226668kB kernel_stack:3424kB pagetables:1436kB bounce:0kB free_pcp:28kB local_pcp:28kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 35.920364] 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: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB executing program 79 total pagecache pages [ 35.920390] 0 pages in swap cache [ 35.920394] Swap cache stats: add 0, delete 0, find 0/0 [ 35.920395] Free swap = 0kB [ 35.920397] Total swap = 0kB [ 35.920399] 1965979 pages RAM [ 35.920400] 0 pages HighMem/MovableOnly [ 35.920402] 313627 pages reserved [ 36.353918] ODEBUG: Out of memory. ODEBUG disabled [ 37.616561] lowmemorykiller: Killing 'syz-executor126' (2059) (tgid 2059), adj 1000, [ 37.616561] to free 44kB on behalf of 'syz-executor126' (2063) because [ 37.616561] cache 2124kB is below limit 6144kB for oom_score_adj 0 [ 37.616561] Free memory is -13436kB above reserved [ 37.690371] oom_reaper: reaped process 2059 (syz-executor126), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 37.707819] syz-executor126 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 [ 37.707826] CPU: 1 PID: 2063 Comm: syz-executor126 Not tainted 4.9.191+ #0 [ 37.707839] ffff8801ced27730 ffffffff81b67171 ffff8801ced27a88 ffffffff833f1c30 [ 37.707847] 00000000000003e8 ffff8801ced27aa0 0000000000000000 ffff8801ced277b0 [ 37.707856] ffffffff81506fd4 0000000000000000 00000000000003e8 ffffffff8282a8c5 [ 37.707857] Call Trace: [ 37.707870] [<00000000ba624d81>] dump_stack+0xc1/0x120 [ 37.707879] [<000000000127c754>] dump_header.isra.0+0x142/0x74c [ 37.707906] [<00000000d6b9d8ea>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 37.707914] [<00000000b8780a42>] ? ___ratelimit+0x55/0x413 [ 37.707921] [<0000000065c5921f>] oom_kill_process.cold+0xd/0xa74 [ 37.707931] [<000000000b451114>] ? has_capability_noaudit+0x25/0x30 [ 37.707940] [<000000006b64ef86>] ? oom_badness.part.0+0x11d/0x600 ** 2 printk messages dropped ** [ 37.707960] [<00000000a0ba94ee>] out_of_memory+0x29b/0xea0 [ 37.707967] [<00000000c87535da>] ? out_of_memory+0x41c/0xea0 executing program [ 37.707974] [<00000000b7af1e23>] ? oom_killer_disable+0x210/0x210 [ 37.707981] [<00000000eaedae5b>] ? trace_hardirqs_on+0xd/0x10 [ 37.707988] [<000000007e09b099>] ? __alloc_pages_nodemask+0x10d0/0x1a80 [ 37.707994] [<0000000084a051c6>] __alloc_pages_nodemask+0x1730/0x1a80 [ 37.708000] [<0000000063cff563>] ? __switch_to_asm+0x35/0x70 [ 37.708007] [<000000007603d3a5>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 37.708016] [<00000000da4c0bd2>] __vmalloc_node_range+0x25b/0x610 [ 37.708025] [<000000003eda3af0>] ? xt_alloc_table_info+0xc8/0x100 [ 37.708031] [<000000008a4c0e4e>] vmalloc+0x5c/0x70 [ 37.708038] [<000000003eda3af0>] ? xt_alloc_table_info+0xc8/0x100 [ 37.708045] [<000000003eda3af0>] xt_alloc_table_info+0xc8/0x100 ** 79 printk messages dropped ** [ 37.717195] [<0000000078919698>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 37.717202] [<00000000b612ba52>] ? mutex_unlock+0x9/0x10 [ 37.717210] [<0000000023e8386f>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 37.717217] [<00000000ac6097d6>] nf_setsockopt+0x6d/0xc0 [ 37.717223] [<00000000b4c9c942>] ip_setsockopt+0x8a/0xa0 [ 37.717230] [<000000000db37be5>] tcp_setsockopt+0x8a/0xe0 [ 37.717238] [<0000000092222426>] sock_common_setsockopt+0x9a/0xe0 [ 37.717245] [<000000003970f8bc>] SyS_setsockopt+0x159/0x240 [ 37.717251] [<0000000077700341>] ? SyS_recv+0x40/0x40 [ 37.717258] [<00000000352c4c37>] ? do_syscall_64+0x4a/0x5c0 [ 37.717264] [<0000000077700341>] ? SyS_recv+0x40/0x40 [ 37.717270] [<000000001914fea3>] do_syscall_64+0x1ad/0x5c0 [ 37.717277] [<000000003ccaa0de>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 37.717280] Mem-Info: [ 37.717294] active_anon:3203 inactive_anon:40 isolated_anon:0 [ 37.717294] active_file:9 inactive_file:22 isolated_file:0 [ 37.717294] unevictable:0 dirty:0 writeback:0 unstable:0 [ 37.717294] slab_reclaimable:4260 slab_unreclaimable:56690 [ 37.717294] mapped:19 shmem:48 pagetables:359 bounce:0 [ 37.717294] free:11 free_pcp:0 free_cma:0 [ 37.717305] Node 0 active_anon:12812kB inactive_anon:160kB active_file:36kB inactive_file:88kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:76kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 37.717321] DMA32 free:68kB 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:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 37.717343] Normal free:0kB min:5580kB low:9168kB high:12756kB active_anon:12812kB inactive_anon:160kB active_file:36kB inactive_file:88kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17040kB slab_unreclaimable:226760kB kernel_stack:3424kB pagetables:1436kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 37.717373] 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: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 92 total pagecache pages [ 37.717402] 0 pages in swap cache ** 74 printk messages dropped ** [ 37.745373] [ 1964] 0 1964 3735 45 12 3 0 0 mcstransd ** 90 printk messages dropped ** [ 37.921124] lowmem_reserve[]: 0 0 0 ** 83 printk messages dropped ** [ 38.746089] 107 total pagecache pages [ 38.746091] 0 pages in swap cache [ 38.746094] Swap cache stats: add 0, delete 0, find 0/0 [ 38.746095] Free swap = 0kB [ 38.746097] Total swap = 0kB [ 38.746099] 1965979 pages RAM [ 38.746101] 0 pages HighMem/MovableOnly [ 38.746102] 313627 pages reserved executing program [ 38.746104] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 38.746115] [ 470] 0 470 5384 185 16 3 0 -1000 udevd [ 38.746124] [ 583] 0 583 5364 168 15 3 0 -1000 udevd [ 38.746131] [ 584] 0 584 5364 168 15 3 0 -1000 udevd [ 38.746139] [ 1758] 0 1758 2492 573 9 3 0 0 dhclient [ 38.746150] [ 1891] 0 1891 30582 108 24 3 0 0 rsyslogd [ 38.746220] [ 1944] 0 1944 4724 51 15 3 0 0 cron [ 38.746228] [ 1964] 0 1964 3735 45 12 3 0 0 mcstransd [ 38.746235] [ 1969] 0 1969 12926 1228 27 3 0 0 restorecond [ 38.746243] [ 1991] 0 1991 12489 152 28 3 0 -1000 sshd [ 38.746251] [ 2022] 0 2022 3648 40 13 3 0 0 getty [ 38.746258] [ 2041] 0 2041 3648 44 12 3 0 0 getty [ 38.746270] [ 2042] 0 2042 3648 43 13 3 0 0 getty [ 38.746277] [ 2043] 0 2043 3648 43 13 4 0 0 getty [ 38.746290] [ 2044] 0 2044 3648 42 12 3 0 0 getty [ 38.746297] [ 2045] 0 2045 3648 42 13 3 0 0 getty [ 38.746305] [ 2046] 0 2046 3648 42 13 3 0 0 getty [ 38.746313] [ 2047] 0 2047 17820 199 40 3 0 0 sshd [ 38.746320] [ 2049] 0 2049 4380 1 4 2 0 0 syz-executor126 [ 38.746346] [ 2050] 0 2050 4380 11 4 2 0 0 syz-executor126 [ 38.746353] [ 2051] 0 2051 4380 11 4 2 0 0 syz-executor126 [ 38.746361] [ 2053] 0 2053 4380 11 4 2 0 0 syz-executor126 [ 38.746369] [ 2054] 0 2054 4380 11 4 2 0 0 syz-executor126 [ 38.746377] [ 2055] 0 2055 4380 11 4 2 0 0 syz-executor126 [ 38.746385] [ 2056] 0 2056 4380 11 4 2 0 0 syz-executor126 [ 38.746394] [ 2062] 0 2062 4380 0 5 2 0 1000 syz-executor126 [ 38.746402] [ 2063] 0 2063 4380 11 5 2 0 1000 syz-executor126 [ 38.746410] [ 2064] 0 2064 4380 11 5 2 0 1000 syz-executor126 [ 38.746418] [ 2065] 0 2065 4380 11 5 2 0 1000 syz-executor126 [ 38.746425] [ 2066] 0 2066 4380 11 5 2 0 1000 syz-executor126 executing program [ 38.746431] Out of memory: Kill process 2063 (syz-executor126) score 999 or sacrifice child [ 38.746443] Killed process 2063 (syz-executor126) total-vm:17520kB, anon-rss:44kB, file-rss:0kB, shmem-rss:0kB [ 38.755695] syz-executor126: vmalloc: allocation failure, allocated 1201516544 of 4294975488 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 38.755701] CPU: 1 PID: 2063 Comm: syz-executor126 Not tainted 4.9.191+ #0 [ 38.755712] ffff8801ced27a08 ffffffff81b67171 1ffff10039da4f43 dffffc0000000000 ** 172 printk messages dropped ** [ 38.814972] Free swap = 0kB ** 91 printk messages dropped ** [ 38.822382] lowmem_reserve[]: 0 0 0 [ 38.822406] 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: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 107 total pagecache pages [ 38.822433] 0 pages in swap cache [ 38.822437] Swap cache stats: add 0, delete 0, find 0/0 [ 38.822438] Free swap = 0kB [ 38.822440] Total swap = 0kB [ 38.822442] 1965979 pages RAM [ 38.822444] 0 pages HighMem/MovableOnly [ 38.822445] 313627 pages reserved [ 38.860116] oom_reaper: reaped process 2064 (syz-executor126), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 39.543684] lowmemorykiller: Killing 'syz-executor126' (2065) (tgid 2065), adj 1000, [ 39.543684] to free 44kB on behalf of 'syz-executor126' (2067) because [ 39.543684] cache 2048kB is below limit 6144kB for oom_score_adj 0 [ 39.543684] Free memory is -13420kB above reserved [ 39.702448] syz-executor126: vmalloc: allocation failure, allocated 3109302272 of 4294975488 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 39.702456] CPU: 1 PID: 2065 Comm: syz-executor126 Not tainted 4.9.191+ #0 [ 39.702467] ffff8801cd507a08 ffffffff81b67171 1ffff10039aa0f43 dffffc0000000000 [ 39.702475] ffffffff82aab400 0000000000000000 0000000000400000 ffff8801cd507b30 executing program [ 39.702483] ffffffff8150828c 0000000041b58ab3 ffffffff82e3bbf0 ffffffff81431e90 [ 39.702484] Call Trace: [ 39.702497] [<00000000ba624d81>] dump_stack+0xc1/0x120 [ 39.702506] [<0000000056209f5e>] warn_alloc.cold+0x76/0x93 [ 39.702513] [<0000000073e13c92>] ? zone_watermark_ok_safe+0x260/0x260 [ 39.702521] [<000000006318a864>] ? debug_lockdep_rcu_enabled+0x26/0xa0 [ 39.702528] [<0000000032fa61e5>] __vmalloc_node_range+0x404/0x610 [ 39.702537] [<000000003eda3af0>] ? xt_alloc_table_info+0xc8/0x100 [ 39.702543] [<000000008a4c0e4e>] vmalloc+0x5c/0x70 [ 39.702549] [<000000003eda3af0>] ? xt_alloc_table_info+0xc8/0x100 [ 39.702555] [<000000003eda3af0>] xt_alloc_table_info+0xc8/0x100 [ 39.702561] [<00000000c11ca23d>] do_ipt_set_ctl+0x231/0x470 [ 39.702567] [<0000000078919698>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 39.702574] [<00000000b612ba52>] ? mutex_unlock+0x9/0x10 [ 39.702581] [<0000000023e8386f>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 39.702588] [<00000000ac6097d6>] nf_setsockopt+0x6d/0xc0 [ 39.702594] [<00000000b4c9c942>] ip_setsockopt+0x8a/0xa0 [ 39.702618] [<000000000db37be5>] tcp_setsockopt+0x8a/0xe0 [ 39.702626] [<0000000092222426>] sock_common_setsockopt+0x9a/0xe0 [ 39.702632] [<000000003970f8bc>] SyS_setsockopt+0x159/0x240 [ 39.702639] [<0000000077700341>] ? SyS_recv+0x40/0x40 [ 39.702646] [<00000000b3329946>] ? bad_area_access_error+0x3d0/0x3d0 [ 39.702652] [<0000000077700341>] ? SyS_recv+0x40/0x40 [ 39.702658] [<000000001914fea3>] do_syscall_64+0x1ad/0x5c0 [ 39.702665] [<000000003ccaa0de>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 39.702668] Mem-Info: [ 39.702682] active_anon:3187 inactive_anon:40 isolated_anon:0 [ 39.702682] active_file:26 inactive_file:27 isolated_file:0 [ 39.702682] unevictable:0 dirty:0 writeback:0 unstable:0 executing program [ 39.702682] slab_reclaimable:4271 slab_unreclaimable:56718 [ 39.702682] mapped:13 shmem:48 pagetables:351 bounce:0 [ 39.702682] free:0 free_pcp:0 free_cma:0 [ 39.702693] Node 0 active_anon:12748kB inactive_anon:160kB active_file:104kB inactive_file:108kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:52kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 39.702709] DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:48kB inactive_anon:0kB active_file:84kB inactive_file:8kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:36kB slab_unreclaimable:36kB kernel_stack:64kB pagetables:24kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 39.702730] Normal free:0kB min:5580kB low:9168kB high:12756kB active_anon:12700kB inactive_anon:160kB active_file:32kB inactive_file:92kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17048kB slab_unreclaimable:226836kB kernel_stack:3328kB pagetables:1380kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 39.702826] 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: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 98 total pagecache pages [ 39.702853] 0 pages in swap cache [ 39.702856] Swap cache stats: add 0, delete 0, find 0/0 [ 39.702858] Free swap = 0kB [ 39.702860] Total swap = 0kB [ 39.702862] 1965979 pages RAM [ 39.702863] 0 pages HighMem/MovableOnly [ 39.702865] 313627 pages reserved [ 39.716403] oom_reaper: reaped process 2065 (syz-executor126), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 39.914326] syz-executor126 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 executing program [ 39.914334] CPU: 1 PID: 2068 Comm: syz-executor126 Not tainted 4.9.191+ #0 [ 39.914355] ffff8801c38bf730 ffffffff81b67171 ffff8801c38bfa88 ffffffff833f1c30 [ 39.914364] 00000000000003e8 ffff8801c38bfaa0 0000000000000000 ffff8801c38bf7b0 [ 39.914373] ffffffff81506fd4 0000000000000000 00000000000003e8 ffffffff8282a8c5 [ 39.914375] Call Trace: [ 39.914388] [<00000000ba624d81>] dump_stack+0xc1/0x120 [ 39.914398] [<000000000127c754>] dump_header.isra.0+0x142/0x74c [ 39.914406] [<00000000d6b9d8ea>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 39.914414] [<00000000b8780a42>] ? ___ratelimit+0x55/0x413 [ 39.914421] [<0000000065c5921f>] oom_kill_process.cold+0xd/0xa74 [ 39.914431] [<000000000b451114>] ? has_capability_noaudit+0x25/0x30 [ 39.914440] [<000000006b64ef86>] ? oom_badness.part.0+0x11d/0x600 [ 39.914447] [<000000007f3d9887>] ? oom_badness.part.0+0x12f/0x600 [ 39.914454] [<0000000069a0410e>] ? out_of_memory+0x6d3/0xea0 [ 39.914461] [<00000000a0ba94ee>] out_of_memory+0x29b/0xea0 [ 39.914467] [<00000000c87535da>] ? out_of_memory+0x41c/0xea0 [ 39.914475] [<00000000b7af1e23>] ? oom_killer_disable+0x210/0x210 [ 39.914482] [<00000000eaedae5b>] ? trace_hardirqs_on+0xd/0x10 [ 39.914488] [<000000007e09b099>] ? __alloc_pages_nodemask+0x10d0/0x1a80 ** 26 printk messages dropped ** [ 39.915241] DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:48kB inactive_anon:0kB active_file:84kB inactive_file:8kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:36kB slab_unreclaimable:36kB kernel_stack:64kB pagetables:24kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB