[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [ 11.552599] 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: [ 28.938289] random: sshd: uninitialized urandom read (32 bytes read) [ 28.987894] random: crng init done Warning: Permanently added '10.128.0.135' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 36.701885] lowmemorykiller: Killing 'syz-executor158' (2056) (tgid 2056), adj 1000, [ 36.701885] to free 44kB on behalf of 'kswapd0' (33) because [ 36.701885] cache 36232kB is below limit 65536kB for oom_score_adj 12 [ 36.701885] Free memory is -13412kB above reserved [ 36.732754] lowmemorykiller: Killing 'syz-executor158' (2056) (tgid 2056), adj 1000, [ 36.732754] to free 44kB on behalf of 'syz-executor158' (2061) because [ 36.732754] cache 34232kB is below limit 65536kB for oom_score_adj 12 [ 36.732754] Free memory is -13400kB above reserved [ 36.732761] BUG: sleeping function called from invalid context at kernel/fork.c:903 [ 36.732766] in_atomic(): 0, irqs_disabled(): 0, pid: 2061, name: syz-executor158 [ 36.732770] 2 locks held by syz-executor158/2061: [ 36.732796] #0: (shrinker_rwsem){++++..}, at: [<00000000f18c32e5>] shrink_slab.part.0+0xb2/0xa20 [ 36.732814] #1: (rcu_read_lock){......}, at: [<0000000074f16e92>] lowmem_scan+0x242/0xb50 [ 36.732825] Preemption disabled at: [ 36.732826] [<00000000e8b59316>] get_task_mm+0x20/0xc0 [ 36.732836] CPU: 1 PID: 2061 Comm: syz-executor158 Not tainted 4.9.185+ #7 [ 36.732851] ffff8801cee27398 ffffffff81b57f51 0000000000000000 0000000000000001 [ 36.732861] ffff8801d1fb8000 ffffffff810d0ca0 ffff8801d1fb8000 ffff8801cee273d0 [ 36.732871] ffffffff814002fc ffff8801d1fb8000 ffffffff82a39940 0000000000000387 [ 36.732873] Call Trace: [ 36.732885] [<0000000026ff606e>] dump_stack+0xc1/0x120 [ 36.732892] [<00000000e8b59316>] ? get_task_mm+0x20/0xc0 [ 36.732906] [<000000002f037db9>] ___might_sleep.cold+0x1c1/0x1fa [ 36.732917] [<000000002cb4ab36>] __might_sleep+0x95/0x1a0 [ 36.732924] [<00000000ad7ceaae>] mmput+0x28/0x370 [ 36.732931] [<00000000df5629c1>] handle_lmk_event+0xea/0x8a0 [ 36.732937] [<0000000078608a8f>] lowmem_scan+0x695/0xb50 [ 36.732946] [<0000000063ba01b0>] shrink_slab.part.0+0x3cf/0xa20 [ 36.732954] [<0000000041038ca8>] ? unregister_shrinker+0x230/0x230 [ 36.732962] [<00000000c1474365>] shrink_node+0x1ed/0x750 [ 36.732971] [<00000000ebe20de1>] ? shrink_node_memcg.isra.0+0x1360/0x1360 [ 36.732981] [<00000000cb6bed7c>] ? __delayacct_freepages_start+0x41/0x80 [ 36.732989] [<00000000b649a5d2>] try_to_free_pages+0x397/0xbd0 [ 36.732997] [<00000000f2537ac4>] ? shrink_node+0x750/0x750 [ 36.733006] [<00000000b12d858c>] __alloc_pages_nodemask+0x930/0x1a80 [ 36.733015] [<00000000c8c31266>] ? retint_kernel+0x2d/0x2d [ 36.733026] [<00000000584399c1>] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 36.733034] [<000000000a6cfe9a>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 36.733041] [<00000000c8c31266>] ? retint_kernel+0x2d/0x2d [ 36.733052] [<00000000dd1736e9>] __vmalloc_node_range+0x25b/0x610 [ 36.733063] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 36.733070] [<00000000477733d3>] vmalloc+0x5c/0x70 [ 36.733077] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 36.733085] [<0000000052031eb0>] xt_alloc_table_info+0xc8/0x100 [ 36.733093] [<00000000be1fdcdd>] do_ipt_set_ctl+0x231/0x470 [ 36.733101] [<00000000afa59c6b>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 36.733109] [<0000000030989be8>] ? mutex_unlock+0x9/0x10 [ 36.733118] [<00000000fe0c3f04>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 36.733125] [<0000000067dc44a6>] nf_setsockopt+0x6d/0xc0 [ 36.733132] [<000000005573bd72>] ip_setsockopt+0x8a/0xa0 [ 36.733140] [<000000001d7356a5>] udp_setsockopt+0x4e/0x90 [ 36.733147] [<00000000c32ed434>] ipv6_setsockopt+0xa4/0x140 [ 36.733154] [<000000003f93e967>] tcp_setsockopt+0x8a/0xe0 [ 36.733163] [<000000003b419c55>] sock_common_setsockopt+0x9a/0xe0 [ 36.733171] [<0000000061368501>] SyS_setsockopt+0x159/0x240 [ 36.733178] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 36.733186] [<00000000d045f837>] ? __do_page_fault+0x545/0xa60 [ 36.733193] [<000000007b64d37b>] ? do_syscall_64+0x4a/0x5c0 [ 36.733200] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 36.733206] [<000000001fffee2f>] do_syscall_64+0x1ad/0x5c0 [ 36.733214] [<00000000de4164e7>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 36.734766] [ 36.734768] ================================= [ 36.734769] [ INFO: inconsistent lock state ] [ 36.734775] 4.9.185+ #7 Tainted: G W [ 36.734776] --------------------------------- [ 36.734779] inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-R} usage. [ 36.734785] syz-executor158/2061 [HC0[0]:SC0[0]:HE1:SE1] takes: [ 36.734798] (&mm->mmap_sem){+++++?}, at: [<0000000011631f2f>] get_cmdline+0xa3/0x2d0 {RECLAIM_FS-ON-W} state was registered at: [ 36.734808] mark_held_locks+0xb1/0x100 [ 36.734812] lockdep_trace_alloc+0x18c/0x2b0 [ 36.734816] __alloc_pages_nodemask+0x143/0x1a80 [ 36.734822] __pmd_alloc+0x4a/0x330 [ 36.734828] move_page_tables+0xadb/0xd60 [ 36.734832] shift_arg_pages+0x1ae/0x470 [ 36.734835] setup_arg_pages+0x60d/0x7c0 [ 36.734842] load_elf_binary+0xa84/0x4a90 [ 36.734846] search_binary_handler+0x14f/0x700 [ 36.734850] do_execveat_common.isra.0+0xf81/0x1db0 [ 36.734853] do_execve+0x3a/0x50 executing program [ 36.734858] run_init_process+0x33/0x37 [ 36.734863] try_to_run_init_process+0x18/0x48 [ 36.734869] kernel_init+0xf2/0x163 [ 36.734874] ret_from_fork+0x5c/0x70 [ 36.734876] irq event stamp: 575163 executing program [ 36.734881] hardirqs last enabled at (575163): [<00000000c8c31266>] restore_regs_and_iret+0x0/0x1d [ 36.734887] hardirqs last disabled at (575162): [<000000004b78ed0e>] preempt_schedule_irq+0x6a/0xa0 [ 36.734893] softirqs last enabled at (525066): [<000000003c4e63ca>] __do_softirq+0x474/0x964 [ 36.734900] softirqs last disabled at (525059): [<000000005326e02d>] irq_exit+0x119/0x160 [ 36.734902] [ 36.734902] other info that might help us debug this: [ 36.734903] Possible unsafe locking scenario: [ 36.734903] [ 36.734904] CPU0 [ 36.734904] ---- [ 36.734907] lock(&mm->mmap_sem); [ 36.734908] [ 36.734911] lock(&mm->mmap_sem); [ 36.734912] [ 36.734912] *** DEADLOCK *** [ 36.734912] [ 36.734915] 3 locks held by syz-executor158/2061: [ 36.734925] #0: (shrinker_rwsem){++++..}, at: [<00000000f18c32e5>] shrink_slab.part.0+0xb2/0xa20 [ 36.734934] #1: (rcu_read_lock){......}, at: [<0000000074f16e92>] lowmem_scan+0x242/0xb50 [ 36.734942] #2: (lmk_event_lock){+.+.-.}, at: [<00000000345cca5c>] handle_lmk_event+0xfb/0x8a0 [ 36.734943] [ 36.734943] stack backtrace: [ 36.734948] CPU: 1 PID: 2061 Comm: syz-executor158 Tainted: G W 4.9.185+ #7 [ 36.734957] ffff8801cee270e0 ffffffff81b57f51 00000000000000f0 ffff8801d1fb8000 [ 36.734963] ffffffff83caf910 ffff8801d1fb8948 ffffffff84250ec0 ffff8801cee27158 [ 36.734969] ffffffff81406d39 0000000000000000 ffffffff00000001 0000000000000001 [ 36.734971] Call Trace: [ 36.734978] [<0000000026ff606e>] dump_stack+0xc1/0x120 [ 36.734984] [<00000000f7f74cdc>] print_usage_bug.cold+0x452/0x5a2 [ 36.734989] [<0000000002b1068d>] mark_lock+0x6c7/0x12e0 [ 36.734994] [<0000000058344ba6>] ? print_irq_inversion_bug+0xa0/0xa0 [ 36.734999] [<00000000c9bf040a>] __lock_acquire+0x5c3/0x4350 [ 36.735004] [<0000000032c90353>] ? trace_hardirqs_on+0x10/0x10 [ 36.735008] [<0000000032c90353>] ? trace_hardirqs_on+0x10/0x10 [ 36.735015] [<000000008d4ca479>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 36.735019] [<00000000b9d6be53>] lock_acquire+0x133/0x3d0 [ 36.735024] [<0000000011631f2f>] ? get_cmdline+0xa3/0x2d0 [ 36.735029] [<000000006a19a8aa>] down_read+0x44/0xb0 [ 36.735033] [<0000000011631f2f>] ? get_cmdline+0xa3/0x2d0 [ 36.735037] [<0000000011631f2f>] get_cmdline+0xa3/0x2d0 [ 36.735042] [<000000005fa6b0a7>] handle_lmk_event+0x13c/0x8a0 [ 36.735047] [<0000000078608a8f>] lowmem_scan+0x695/0xb50 [ 36.735052] [<0000000063ba01b0>] shrink_slab.part.0+0x3cf/0xa20 [ 36.735058] [<0000000041038ca8>] ? unregister_shrinker+0x230/0x230 [ 36.735064] [<00000000c1474365>] shrink_node+0x1ed/0x750 [ 36.735070] [<00000000ebe20de1>] ? shrink_node_memcg.isra.0+0x1360/0x1360 [ 36.735077] [<00000000cb6bed7c>] ? __delayacct_freepages_start+0x41/0x80 [ 36.735083] [<00000000b649a5d2>] try_to_free_pages+0x397/0xbd0 [ 36.735088] [<00000000f2537ac4>] ? shrink_node+0x750/0x750 [ 36.735094] [<00000000b12d858c>] __alloc_pages_nodemask+0x930/0x1a80 [ 36.735099] [<00000000c8c31266>] ? retint_kernel+0x2d/0x2d [ 36.735104] [<00000000584399c1>] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 36.735111] [<000000000a6cfe9a>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 36.735116] [<00000000c8c31266>] ? retint_kernel+0x2d/0x2d [ 36.735122] [<00000000dd1736e9>] __vmalloc_node_range+0x25b/0x610 [ 36.735129] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 36.735134] [<00000000477733d3>] vmalloc+0x5c/0x70 [ 36.735139] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 36.735143] [<0000000052031eb0>] xt_alloc_table_info+0xc8/0x100 [ 36.735150] [<00000000be1fdcdd>] do_ipt_set_ctl+0x231/0x470 [ 36.735156] [<00000000afa59c6b>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 36.735161] [<0000000030989be8>] ? mutex_unlock+0x9/0x10 [ 36.735168] [<00000000fe0c3f04>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 36.735173] [<0000000067dc44a6>] nf_setsockopt+0x6d/0xc0 [ 36.735178] [<000000005573bd72>] ip_setsockopt+0x8a/0xa0 [ 36.735185] [<000000001d7356a5>] udp_setsockopt+0x4e/0x90 [ 36.735189] [<00000000c32ed434>] ipv6_setsockopt+0xa4/0x140 [ 36.735195] [<000000003f93e967>] tcp_setsockopt+0x8a/0xe0 [ 36.735201] [<000000003b419c55>] sock_common_setsockopt+0x9a/0xe0 [ 36.735206] [<0000000061368501>] SyS_setsockopt+0x159/0x240 [ 36.735211] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 36.735218] [<00000000d045f837>] ? __do_page_fault+0x545/0xa60 [ 36.735222] [<000000007b64d37b>] ? do_syscall_64+0x4a/0x5c0 [ 36.735227] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 36.735231] [<000000001fffee2f>] do_syscall_64+0x1ad/0x5c0 [ 36.735236] [<00000000de4164e7>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 36.854382] oom_reaper: reaped process 2056 (syz-executor158), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 36.855368] syz-executor158: vmalloc: allocation failure, allocated 1183129600 of 3490287616 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 36.855380] CPU: 0 PID: 2056 Comm: syz-executor158 Tainted: G W 4.9.185+ #7 [ 36.855393] ffff8801ceeb7998 ffffffff81b57f51 1ffff10039dd6f35 dffffc0000000000 [ 36.855402] ffffffff82aaa9c0 0000000000000000 0000000000400000 ffff8801ceeb7ac0 [ 36.855411] ffffffff81506743 0000000041b58ab3 ffffffff82e3a198 ffffffff81430320 [ 36.855412] Call Trace: [ 36.855430] [<0000000026ff606e>] dump_stack+0xc1/0x120 executing program [ 36.855443] [<00000000b8f17540>] warn_alloc.cold+0x76/0x93 [ 36.855454] [<00000000bb9bbada>] ? zone_watermark_ok_safe+0x260/0x260 [ 36.855466] [<0000000035cf7f71>] ? ___might_sleep+0x16a/0x280 [ 36.855474] [<000000000f375587>] __vmalloc_node_range+0x3ff/0x610 [ 36.855485] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 36.855491] [<00000000477733d3>] vmalloc+0x5c/0x70 [ 36.855498] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 36.855504] [<0000000052031eb0>] xt_alloc_table_info+0xc8/0x100 [ 36.855514] [<00000000be1fdcdd>] do_ipt_set_ctl+0x231/0x470 [ 36.855522] [<00000000afa59c6b>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 36.855531] [<0000000030989be8>] ? mutex_unlock+0x9/0x10 [ 36.855540] [<00000000fe0c3f04>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 36.855547] [<0000000067dc44a6>] nf_setsockopt+0x6d/0xc0 [ 36.855554] [<000000005573bd72>] ip_setsockopt+0x8a/0xa0 [ 36.855562] [<000000001d7356a5>] udp_setsockopt+0x4e/0x90 [ 36.855570] [<00000000c32ed434>] ipv6_setsockopt+0xa4/0x140 [ 36.855576] [<000000003f93e967>] tcp_setsockopt+0x8a/0xe0 [ 36.855584] [<000000003b419c55>] sock_common_setsockopt+0x9a/0xe0 [ 36.855591] [<0000000061368501>] SyS_setsockopt+0x159/0x240 [ 36.855598] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 36.855605] [<00000000d045f837>] ? __do_page_fault+0x545/0xa60 [ 36.855612] [<000000007b64d37b>] ? do_syscall_64+0x4a/0x5c0 [ 36.855619] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 36.855625] [<000000001fffee2f>] do_syscall_64+0x1ad/0x5c0 [ 36.855632] [<00000000de4164e7>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 36.855635] Mem-Info: [ 36.855651] active_anon:3227 inactive_anon:41 isolated_anon:0 [ 36.855651] active_file:15 inactive_file:20 isolated_file:0 [ 36.855651] unevictable:0 dirty:8 writeback:0 unstable:0 [ 36.855651] slab_reclaimable:4266 slab_unreclaimable:56689 [ 36.855651] mapped:40 shmem:48 pagetables:357 bounce:0 [ 36.855651] free:32 free_pcp:8 free_cma:0 [ 36.855663] Node 0 active_anon:12908kB inactive_anon:164kB active_file:60kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:160kB dirty:32kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 36.855679] DMA32 free:48kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 36.855702] Normal free:80kB min:5580kB low:9168kB high:12756kB active_anon:12908kB inactive_anon:164kB active_file:60kB inactive_file:80kB unevictable:0kB writepending:32kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17064kB slab_unreclaimable:226756kB kernel_stack:3424kB pagetables:1428kB bounce:0kB free_pcp:32kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 36.855732] 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 106 total pagecache pages [ 36.855764] 0 pages in swap cache [ 36.855768] Swap cache stats: add 0, delete 0, find 0/0 [ 36.855770] Free swap = 0kB [ 36.855771] Total swap = 0kB [ 36.855773] 1965979 pages RAM [ 36.855775] 0 pages HighMem/MovableOnly [ 36.855776] 313625 pages reserved [ 36.889413] syz-executor158 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 [ 36.889422] CPU: 0 PID: 2062 Comm: syz-executor158 Tainted: G W 4.9.185+ #7 [ 36.889438] ffff8801ced5f6c0 ffffffff81b57f51 ffff8801ced5fa18 ffffffff833f0c30 [ 36.889447] 00000000000003e8 ffff8801ced5fa30 0000000000000000 ffff8801ced5f740 [ 36.889455] ffffffff8150548b 0000000000000000 00000000000003e8 ffffffff8281a135 [ 36.889457] Call Trace: [ 36.889473] [<0000000026ff606e>] dump_stack+0xc1/0x120 [ 36.889484] [<000000003f48434d>] dump_header.isra.0+0x142/0x74c [ 36.889493] [<00000000df9401fa>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 36.889501] [<00000000551b1296>] ? ___ratelimit+0x55/0x413 [ 36.889509] [<00000000e3ebfcb2>] oom_kill_process.cold+0xd/0xa74 [ 36.889518] [<00000000a1dd8713>] ? has_capability_noaudit+0x25/0x30 [ 36.889528] [<00000000fd77da47>] ? oom_badness.part.0+0x11d/0x600 [ 36.889535] [<000000008628e44c>] ? oom_badness.part.0+0x12f/0x600 [ 36.889542] [<00000000022fae11>] ? out_of_memory+0x6d3/0xea0 [ 36.889549] [<000000003cdbcd42>] out_of_memory+0x29b/0xea0 [ 36.889555] [<00000000ac46e85a>] ? out_of_memory+0x41c/0xea0 [ 36.889562] [<00000000a4cc69f9>] ? oom_killer_disable+0x210/0x210 [ 36.889571] [<00000000afa0065d>] ? trace_hardirqs_on+0xd/0x10 [ 36.889577] [<00000000fd0d2aac>] ? __alloc_pages_nodemask+0x10d0/0x1a80 [ 36.889584] [<00000000ef1260e6>] __alloc_pages_nodemask+0x1730/0x1a80 [ 36.889592] [<000000000a6cfe9a>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 36.889598] [<00000000c8c31266>] ? retint_kernel+0x2d/0x2d executing program [ 36.889608] [<00000000dd1736e9>] __vmalloc_node_range+0x25b/0x610 [ 36.889616] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 36.889623] [<00000000477733d3>] vmalloc+0x5c/0x70 [ 36.889630] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 36.889636] [<0000000052031eb0>] xt_alloc_table_info+0xc8/0x100 [ 36.889644] [<00000000be1fdcdd>] do_ipt_set_ctl+0x231/0x470 [ 36.889651] [<00000000afa59c6b>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 36.889659] [<0000000030989be8>] ? mutex_unlock+0x9/0x10 [ 36.889668] [<00000000fe0c3f04>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 executing program [ 36.889675] [<0000000067dc44a6>] nf_setsockopt+0x6d/0xc0 [ 36.889681] [<000000005573bd72>] ip_setsockopt+0x8a/0xa0 [ 36.889689] [<000000001d7356a5>] udp_setsockopt+0x4e/0x90 [ 36.889696] [<00000000c32ed434>] ipv6_setsockopt+0xa4/0x140 [ 36.889703] [<000000003f93e967>] tcp_setsockopt+0x8a/0xe0 [ 36.889711] [<000000003b419c55>] sock_common_setsockopt+0x9a/0xe0 [ 36.889718] [<0000000061368501>] SyS_setsockopt+0x159/0x240 [ 36.889724] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 36.889731] [<00000000d045f837>] ? __do_page_fault+0x545/0xa60 [ 36.889739] [<000000007b64d37b>] ? do_syscall_64+0x4a/0x5c0 [ 36.889745] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 36.889751] [<000000001fffee2f>] do_syscall_64+0x1ad/0x5c0 [ 36.889758] [<00000000de4164e7>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 36.889761] Mem-Info: [ 36.889776] active_anon:3227 inactive_anon:41 isolated_anon:0 [ 36.889776] active_file:15 inactive_file:20 isolated_file:0 [ 36.889776] unevictable:0 dirty:8 writeback:0 unstable:0 [ 36.889776] slab_reclaimable:4266 slab_unreclaimable:56689 [ 36.889776] mapped:40 shmem:48 pagetables:357 bounce:0 [ 36.889776] free:32 free_pcp:8 free_cma:0 [ 36.889788] Node 0 active_anon:12908kB inactive_anon:164kB active_file:60kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:160kB dirty:32kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 36.889804] DMA32 free:48kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 36.889827] Normal free:80kB min:5580kB low:9168kB high:12756kB active_anon:12908kB inactive_anon:164kB active_file:60kB inactive_file:80kB unevictable:0kB writepending:32kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17064kB slab_unreclaimable:226756kB kernel_stack:3424kB pagetables:1428kB bounce:0kB free_pcp:32kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 36.889858] 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 106 total pagecache pages [ 36.889886] 0 pages in swap cache [ 36.889890] Swap cache stats: add 0, delete 0, find 0/0 [ 36.889892] Free swap = 0kB [ 36.889893] Total swap = 0kB [ 36.889895] 1965979 pages RAM [ 36.889897] 0 pages HighMem/MovableOnly [ 36.889899] 313625 pages reserved [ 36.889901] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name executing program [ 36.889915] [ 470] 0 470 5417 193 16 3 0 -1000 udevd [ 36.889924] [ 575] 0 575 5379 171 15 3 0 -1000 udevd [ 36.889932] [ 577] 0 577 5383 171 15 3 0 -1000 udevd [ 36.889940] [ 1760] 0 1760 2492 573 8 3 0 0 dhclient [ 36.889947] [ 1893] 0 1893 14231 109 24 3 0 0 rsyslogd [ 36.889955] [ 1934] 0 1934 4724 51 15 3 0 0 cron [ 36.889963] [ 1955] 0 1955 3735 44 11 3 0 0 mcstransd [ 36.889971] [ 1977] 0 1977 12926 1227 28 4 0 0 restorecond [ 36.889979] [ 1996] 0 1996 12489 153 27 3 0 -1000 sshd [ 36.889987] [ 2026] 0 2026 3648 39 13 3 0 0 getty [ 36.889995] [ 2045] 0 2045 3648 42 13 3 0 0 getty [ 36.890002] [ 2046] 0 2046 3648 43 13 3 0 0 getty [ 36.890010] [ 2047] 0 2047 3648 43 13 3 0 0 getty [ 36.890018] [ 2048] 0 2048 3648 43 13 3 0 0 getty [ 36.890026] [ 2049] 0 2049 3648 42 13 3 0 0 getty [ 36.890033] [ 2050] 0 2050 3648 42 13 3 0 0 getty [ 36.890041] [ 2051] 0 2051 17820 197 39 3 0 0 sshd [ 36.890049] [ 2053] 0 2053 4380 1 4 2 0 0 syz-executor158 [ 36.890057] [ 2054] 0 2054 4380 11 4 2 0 0 syz-executor158 [ 36.890064] [ 2055] 0 2055 4380 11 4 2 0 0 syz-executor158 [ 36.890078] [ 2056] 0 2056 4380 0 5 2 0 1000 syz-executor158 [ 36.890086] [ 2057] 0 2057 4380 11 4 2 0 0 syz-executor158 [ 36.890094] [ 2058] 0 2058 4380 11 4 2 0 0 syz-executor158 [ 36.890102] [ 2059] 0 2059 4380 11 4 2 0 0 syz-executor158 [ 36.890110] [ 2060] 0 2060 4380 11 4 2 0 0 syz-executor158 [ 36.890118] [ 2061] 0 2061 4380 11 5 2 0 1000 syz-executor158 executing program [ 36.890126] [ 2062] 0 2062 4380 11 5 2 0 1000 syz-executor158 [ 36.890134] [ 2063] 0 2063 4380 11 5 2 0 1000 syz-executor158 [ 36.890142] [ 2064] 0 2064 4380 11 5 2 0 1000 syz-executor158 [ 36.890150] [ 2065] 0 2065 4380 11 5 2 0 1000 syz-executor158 [ 36.890154] Out of memory: Kill process 2061 (syz-executor158) score 999 or sacrifice child [ 36.890168] Killed process 2061 (syz-executor158) total-vm:17520kB, anon-rss:44kB, file-rss:0kB, shmem-rss:0kB executing program [ 36.912971] oom_reaper: reaped process 2061 (syz-executor158), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 36.913162] syz-executor158: vmalloc: allocation failure, allocated 1168891904 of 3490287616 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 36.913171] CPU: 1 PID: 2061 Comm: syz-executor158 Tainted: G W 4.9.185+ #7 [ 36.913186] ffff8801cee27998 ffffffff81b57f51 1ffff10039dc4f35 dffffc0000000000 [ 36.913195] ffffffff82aaa9c0 0000000000000000 0000000000400000 ffff8801cee27ac0 [ 36.913205] ffffffff81506743 0000000041b58ab3 ffffffff82e3a198 ffffffff81430320 executing program [ 36.913206] Call Trace: [ 36.913224] [<0000000026ff606e>] dump_stack+0xc1/0x120 [ 36.913235] [<00000000b8f17540>] warn_alloc.cold+0x76/0x93 [ 36.913246] [<00000000bb9bbada>] ? zone_watermark_ok_safe+0x260/0x260 [ 36.913256] [<00000000c8c31266>] ? retint_kernel+0x2d/0x2d [ 36.913266] [<000000000f375587>] __vmalloc_node_range+0x3ff/0x610 [ 36.913277] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 36.913284] [<00000000477733d3>] vmalloc+0x5c/0x70 [ 36.913291] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 36.913298] [<0000000052031eb0>] xt_alloc_table_info+0xc8/0x100 [ 36.913308] [<00000000be1fdcdd>] do_ipt_set_ctl+0x231/0x470 [ 36.913316] [<00000000afa59c6b>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 36.913325] [<0000000030989be8>] ? mutex_unlock+0x9/0x10 [ 36.913336] [<00000000fe0c3f04>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 36.913343] [<0000000067dc44a6>] nf_setsockopt+0x6d/0xc0 [ 36.913351] [<000000005573bd72>] ip_setsockopt+0x8a/0xa0 [ 36.913361] [<000000001d7356a5>] udp_setsockopt+0x4e/0x90 [ 36.913368] [<00000000c32ed434>] ipv6_setsockopt+0xa4/0x140 [ 36.913376] [<000000003f93e967>] tcp_setsockopt+0x8a/0xe0 [ 36.913387] [<000000003b419c55>] sock_common_setsockopt+0x9a/0xe0 [ 36.913394] [<0000000061368501>] SyS_setsockopt+0x159/0x240 [ 36.913401] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 36.913411] [<00000000d045f837>] ? __do_page_fault+0x545/0xa60 [ 36.913419] [<000000007b64d37b>] ? do_syscall_64+0x4a/0x5c0 [ 36.913426] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 36.913432] [<000000001fffee2f>] do_syscall_64+0x1ad/0x5c0 [ 36.913439] [<00000000de4164e7>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 36.913442] Mem-Info: [ 36.913459] active_anon:3227 inactive_anon:41 isolated_anon:0 [ 36.913459] active_file:15 inactive_file:20 isolated_file:0 [ 36.913459] unevictable:0 dirty:8 writeback:0 unstable:0 [ 36.913459] slab_reclaimable:4266 slab_unreclaimable:56689 [ 36.913459] mapped:40 shmem:48 pagetables:357 bounce:0 [ 36.913459] free:32 free_pcp:7 free_cma:0 [ 36.913472] Node 0 active_anon:12908kB inactive_anon:164kB active_file:60kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:160kB dirty:32kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 36.913489] DMA32 free:48kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 36.913514] Normal free:80kB min:5580kB low:9168kB high:12756kB active_anon:12908kB inactive_anon:164kB active_file:60kB inactive_file:80kB unevictable:0kB writepending:32kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17064kB slab_unreclaimable:226756kB kernel_stack:3424kB pagetables:1428kB bounce:0kB free_pcp:28kB local_pcp:28kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 36.913547] 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 106 total pagecache pages [ 36.913584] 0 pages in swap cache [ 36.913587] Swap cache stats: add 0, delete 0, find 0/0 [ 36.913589] Free swap = 0kB [ 36.913591] Total swap = 0kB [ 36.913594] 1965979 pages RAM [ 36.913595] 0 pages HighMem/MovableOnly [ 36.913597] 313625 pages reserved [ 37.050672] ODEBUG: Out of memory. ODEBUG disabled [ 37.998887] lowmemorykiller: Killing 'syz-executor158' (2062) (tgid 2062), adj 1000, [ 37.998887] to free 44kB on behalf of 'syz-executor158' (2066) because [ 37.998887] cache 2132kB is below limit 6144kB for oom_score_adj 0 [ 37.998887] Free memory is -13356kB above reserved [ 37.998894] BUG: sleeping function called from invalid context at kernel/fork.c:903 [ 37.998898] in_atomic(): 0, irqs_disabled(): 0, pid: 2066, name: syz-executor158 [ 37.998900] INFO: lockdep is turned off. [ 37.998920] Preemption disabled at: [ 37.998920] [<00000000e8b59316>] get_task_mm+0x20/0xc0 [ 37.998930] CPU: 1 PID: 2066 Comm: syz-executor158 Tainted: G W 4.9.185+ #7 [ 37.998944] ffff8801a72c7398 ffffffff81b57f51 0000000000000000 0000000000000001 executing program [ 37.998953] ffff8801ced317c0 ffffffff810d0ca0 ffff8801ced317c0 ffff8801a72c73d0 [ 37.998962] ffffffff814002fc ffff8801ced317c0 ffffffff82a39940 0000000000000387 [ 37.998963] Call Trace: [ 37.998976] [<0000000026ff606e>] dump_stack+0xc1/0x120 [ 37.998983] [<00000000e8b59316>] ? get_task_mm+0x20/0xc0 [ 37.998993] [<000000002f037db9>] ___might_sleep.cold+0x1c1/0x1fa [ 37.999004] [<000000002cb4ab36>] __might_sleep+0x95/0x1a0 [ 37.999011] [<00000000ad7ceaae>] mmput+0x28/0x370 [ 37.999023] [<00000000df5629c1>] handle_lmk_event+0xea/0x8a0 [ 37.999029] [<0000000078608a8f>] lowmem_scan+0x695/0xb50 [ 37.999039] [<0000000063ba01b0>] shrink_slab.part.0+0x3cf/0xa20 [ 37.999047] [<0000000041038ca8>] ? unregister_shrinker+0x230/0x230 [ 37.999055] [<00000000c1474365>] shrink_node+0x1ed/0x750 [ 37.999062] [<00000000ebe20de1>] ? shrink_node_memcg.isra.0+0x1360/0x1360 [ 37.999071] [<00000000cb6bed7c>] ? __delayacct_freepages_start+0x41/0x80 [ 37.999079] [<00000000b649a5d2>] try_to_free_pages+0x397/0xbd0 [ 37.999085] [<00000000f2537ac4>] ? shrink_node+0x750/0x750 [ 37.999093] [<00000000b12d858c>] __alloc_pages_nodemask+0x930/0x1a80 [ 37.999101] [<000000005666f0c3>] ? __schedule+0x6d6/0x1f10 [ 37.999110] [<000000000a6cfe9a>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 37.999119] [<0000000085836eae>] ? debug_lockdep_rcu_enabled+0x7/0xa0 [ 37.999127] [<00000000dd1736e9>] __vmalloc_node_range+0x25b/0x610 [ 37.999136] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 37.999142] [<00000000477733d3>] vmalloc+0x5c/0x70 [ 37.999149] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 37.999155] [<0000000052031eb0>] xt_alloc_table_info+0xc8/0x100 [ 37.999164] [<00000000be1fdcdd>] do_ipt_set_ctl+0x231/0x470 [ 37.999171] [<00000000afa59c6b>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 37.999179] [<0000000030989be8>] ? mutex_unlock+0x9/0x10 [ 37.999187] [<00000000fe0c3f04>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 37.999194] [<0000000067dc44a6>] nf_setsockopt+0x6d/0xc0 [ 37.999201] [<000000005573bd72>] ip_setsockopt+0x8a/0xa0 [ 37.999208] [<000000001d7356a5>] udp_setsockopt+0x4e/0x90 [ 37.999216] [<00000000c32ed434>] ipv6_setsockopt+0xa4/0x140 [ 37.999222] [<000000003f93e967>] tcp_setsockopt+0x8a/0xe0 [ 37.999231] [<000000003b419c55>] sock_common_setsockopt+0x9a/0xe0 [ 37.999238] [<0000000061368501>] SyS_setsockopt+0x159/0x240 [ 37.999245] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 37.999252] [<00000000d045f837>] ? __do_page_fault+0x545/0xa60 [ 37.999259] [<00000000b3e381f9>] ? bad_area_access_error+0x3d0/0x3d0 executing program [ 37.999266] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 37.999272] [<000000001fffee2f>] do_syscall_64+0x1ad/0x5c0 [ 37.999279] [<00000000de4164e7>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 38.023583] oom_reaper: reaped process 2062 (syz-executor158), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 38.031983] syz-executor158: vmalloc: allocation failure, allocated 1137303552 of 3490287616 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 38.031992] CPU: 0 PID: 2062 Comm: syz-executor158 Tainted: G W 4.9.185+ #7 [ 38.032007] ffff8801ced5f998 ffffffff81b57f51 1ffff10039dabf35 dffffc0000000000 [ 38.032016] ffffffff82aaa9c0 0000000000000000 0000000000400000 ffff8801ced5fac0 [ 38.032025] ffffffff81506743 0000000041b58ab3 ffffffff82e3a198 ffffffff81430320 [ 38.032026] Call Trace: [ 38.032045] [<0000000026ff606e>] dump_stack+0xc1/0x120 [ 38.032056] [<00000000b8f17540>] warn_alloc.cold+0x76/0x93 [ 38.032067] [<00000000bb9bbada>] ? zone_watermark_ok_safe+0x260/0x260 [ 38.032078] [<0000000085836eae>] ? debug_lockdep_rcu_enabled+0x7/0xa0 [ 38.032087] [<000000000f375587>] __vmalloc_node_range+0x3ff/0x610 [ 38.032097] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 38.032103] [<00000000477733d3>] vmalloc+0x5c/0x70 [ 38.032110] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 38.032116] [<0000000052031eb0>] xt_alloc_table_info+0xc8/0x100 [ 38.032126] [<00000000be1fdcdd>] do_ipt_set_ctl+0x231/0x470 [ 38.032133] [<00000000afa59c6b>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 38.032142] [<0000000030989be8>] ? mutex_unlock+0x9/0x10 [ 38.032151] [<00000000fe0c3f04>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 38.032158] [<0000000067dc44a6>] nf_setsockopt+0x6d/0xc0 [ 38.032165] [<000000005573bd72>] ip_setsockopt+0x8a/0xa0 [ 38.032173] [<000000001d7356a5>] udp_setsockopt+0x4e/0x90 [ 38.032179] [<00000000c32ed434>] ipv6_setsockopt+0xa4/0x140 [ 38.032186] [<000000003f93e967>] tcp_setsockopt+0x8a/0xe0 [ 38.032195] [<000000003b419c55>] sock_common_setsockopt+0x9a/0xe0 [ 38.032202] [<0000000061368501>] SyS_setsockopt+0x159/0x240 [ 38.032208] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 38.032217] [<00000000d045f837>] ? __do_page_fault+0x545/0xa60 [ 38.032224] [<000000007b64d37b>] ? do_syscall_64+0x4a/0x5c0 [ 38.032230] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 38.032236] [<000000001fffee2f>] do_syscall_64+0x1ad/0x5c0 [ 38.032243] [<00000000de4164e7>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 38.032246] Mem-Info: [ 38.032262] active_anon:3231 inactive_anon:41 isolated_anon:0 [ 38.032262] active_file:16 inactive_file:28 isolated_file:0 [ 38.032262] unevictable:0 dirty:0 writeback:0 unstable:0 [ 38.032262] slab_reclaimable:4267 slab_unreclaimable:56714 [ 38.032262] mapped:19 shmem:48 pagetables:357 bounce:0 [ 38.032262] free:0 free_pcp:7 free_cma:0 [ 38.032273] Node 0 active_anon:12924kB inactive_anon:164kB active_file:64kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:76kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:58 all_unreclaimable? no [ 38.032289] DMA32 free:32kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 38.032311] Normal free:0kB min:5580kB low:9168kB high:12756kB active_anon:12924kB inactive_anon:164kB active_file:64kB inactive_file:112kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17068kB slab_unreclaimable:226856kB kernel_stack:3424kB pagetables:1428kB bounce:0kB free_pcp:28kB local_pcp:28kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 38.032346] DMA32: 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 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 86 total pagecache pages [ 38.032374] 0 pages in swap cache [ 38.032378] Swap cache stats: add 0, delete 0, find 0/0 [ 38.032380] Free swap = 0kB [ 38.032382] Total swap = 0kB [ 38.032384] 1965979 pages RAM [ 38.032385] 0 pages HighMem/MovableOnly [ 38.032387] 313625 pages reserved [ 38.338498] lowmemorykiller: Killing 'syz-executor158' (2063) (tgid 2063), adj 1000, [ 38.338498] to free 44kB on behalf of 'syz-executor158' (2067) because [ 38.338498] cache 2076kB is below limit 6144kB for oom_score_adj 0 [ 38.338498] Free memory is -13296kB above reserved [ 38.366680] oom_reaper: reaped process 2063 (syz-executor158), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 38.375695] syz-executor158: vmalloc: allocation failure, allocated 1118339072 of 3490287616 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 38.375704] CPU: 1 PID: 2063 Comm: syz-executor158 Tainted: G W 4.9.185+ #7 [ 38.375719] ffff8801cecef998 ffffffff81b57f51 1ffff10039d9df35 dffffc0000000000 [ 38.375728] ffffffff82aaa9c0 0000000000000000 0000000000400000 ffff8801cecefac0 [ 38.375737] ffffffff81506743 0000000041b58ab3 ffffffff82e3a198 ffffffff81430320 [ 38.375738] Call Trace: [ 38.375756] [<0000000026ff606e>] dump_stack+0xc1/0x120 [ 38.375767] [<00000000b8f17540>] warn_alloc.cold+0x76/0x93 [ 38.375778] [<00000000bb9bbada>] ? zone_watermark_ok_safe+0x260/0x260 [ 38.375788] [<00000000a94cbb23>] ? debug_lockdep_rcu_enabled+0x8/0xa0 [ 38.375797] [<000000000f375587>] __vmalloc_node_range+0x3ff/0x610 [ 38.375812] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 38.375819] [<00000000477733d3>] vmalloc+0x5c/0x70 [ 38.375825] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 38.375832] [<0000000052031eb0>] xt_alloc_table_info+0xc8/0x100 [ 38.375842] [<00000000be1fdcdd>] do_ipt_set_ctl+0x231/0x470 [ 38.375850] [<00000000afa59c6b>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 38.375860] [<0000000030989be8>] ? mutex_unlock+0x9/0x10 [ 38.375869] [<00000000fe0c3f04>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 38.375875] [<0000000067dc44a6>] nf_setsockopt+0x6d/0xc0 [ 38.375882] [<000000005573bd72>] ip_setsockopt+0x8a/0xa0 [ 38.375890] [<000000001d7356a5>] udp_setsockopt+0x4e/0x90 [ 38.375897] [<00000000c32ed434>] ipv6_setsockopt+0xa4/0x140 [ 38.375904] [<000000003f93e967>] tcp_setsockopt+0x8a/0xe0 [ 38.375912] [<000000003b419c55>] sock_common_setsockopt+0x9a/0xe0 [ 38.375919] [<0000000061368501>] SyS_setsockopt+0x159/0x240 [ 38.375926] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 38.375935] [<00000000d045f837>] ? __do_page_fault+0x545/0xa60 [ 38.375942] [<000000007b64d37b>] ? do_syscall_64+0x4a/0x5c0 [ 38.375948] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 38.375954] [<000000001fffee2f>] do_syscall_64+0x1ad/0x5c0 [ 38.375963] [<00000000de4164e7>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 38.375966] Mem-Info: [ 38.375981] active_anon:3231 inactive_anon:41 isolated_anon:0 [ 38.375981] active_file:25 inactive_file:31 isolated_file:0 [ 38.375981] unevictable:0 dirty:0 writeback:0 unstable:0 [ 38.375981] slab_reclaimable:4267 slab_unreclaimable:56714 [ 38.375981] mapped:44 shmem:48 pagetables:357 bounce:0 [ 38.375981] free:10 free_pcp:6 free_cma:0 [ 38.375993] Node 0 active_anon:12924kB inactive_anon:164kB active_file:100kB inactive_file:124kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:176kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 38.376009] DMA32 free:40kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:16kB inactive_file:72kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 38.376031] Normal free:0kB min:5580kB low:9168kB high:12756kB active_anon:12924kB inactive_anon:164kB active_file:72kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17068kB slab_unreclaimable:226856kB kernel_stack:3424kB pagetables:1428kB bounce:0kB free_pcp:24kB local_pcp:24kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 38.376061] 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 117 total pagecache pages [ 38.376090] 0 pages in swap cache [ 38.376097] Swap cache stats: add 0, delete 0, find 0/0 [ 38.376173] Free swap = 0kB [ 38.376175] Total swap = 0kB [ 38.376177] 1965979 pages RAM [ 38.376179] 0 pages HighMem/MovableOnly [ 38.376180] 313625 pages reserved [ 38.687945] lowmemorykiller: Killing 'syz-executor158' (2064) (tgid 2064), adj 1000, [ 38.687945] to free 44kB on behalf of 'syz-executor158' (2067) because [ 38.687945] cache 216kB is below limit 6144kB for oom_score_adj 0 [ 38.687945] Free memory is -13324kB above reserved [ 38.715087] syz-executor158: vmalloc: allocation failure, allocated 988966912 of 3490287616 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 38.715096] CPU: 1 PID: 2064 Comm: syz-executor158 Tainted: G W 4.9.185+ #7 [ 38.715111] ffff8801c4f17998 ffffffff81b57f51 1ffff100389e2f35 dffffc0000000000 [ 38.715119] ffffffff82aaa9c0 0000000000000000 0000000000400000 ffff8801c4f17ac0 [ 38.715128] ffffffff81506743 0000000041b58ab3 ffffffff82e3a198 ffffffff81430320 [ 38.715129] Call Trace: [ 38.715146] [<0000000026ff606e>] dump_stack+0xc1/0x120 [ 38.715156] [<00000000b8f17540>] warn_alloc.cold+0x76/0x93 [ 38.715167] [<00000000bb9bbada>] ? zone_watermark_ok_safe+0x260/0x260 [ 38.715177] [<0000000085836eae>] ? debug_lockdep_rcu_enabled+0x7/0xa0 [ 38.715186] [<000000000f375587>] __vmalloc_node_range+0x3ff/0x610 [ 38.715197] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 38.715203] [<00000000477733d3>] vmalloc+0x5c/0x70 [ 38.715210] [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 38.715217] [<0000000052031eb0>] xt_alloc_table_info+0xc8/0x100 [ 38.715225] [<00000000be1fdcdd>] do_ipt_set_ctl+0x231/0x470 [ 38.715233] [<00000000afa59c6b>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 38.715242] [<0000000030989be8>] ? mutex_unlock+0x9/0x10 [ 38.715251] [<00000000fe0c3f04>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 38.715258] [<0000000067dc44a6>] nf_setsockopt+0x6d/0xc0 [ 38.715265] [<000000005573bd72>] ip_setsockopt+0x8a/0xa0 [ 38.715272] [<000000001d7356a5>] udp_setsockopt+0x4e/0x90 [ 38.715279] [<00000000c32ed434>] ipv6_setsockopt+0xa4/0x140 [ 38.715286] [<000000003f93e967>] tcp_setsockopt+0x8a/0xe0 [ 38.715294] [<000000003b419c55>] sock_common_setsockopt+0x9a/0xe0 [ 38.715301] [<0000000061368501>] SyS_setsockopt+0x159/0x240 [ 38.715308] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 38.715316] [<00000000d045f837>] ? __do_page_fault+0x545/0xa60 [ 38.715323] [<000000007b64d37b>] ? do_syscall_64+0x4a/0x5c0 [ 38.715329] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 38.715335] [<000000001fffee2f>] do_syscall_64+0x1ad/0x5c0 [ 38.715342] [<00000000de4164e7>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 38.715345] Mem-Info: [ 38.715361] active_anon:3229 inactive_anon:41 isolated_anon:0 [ 38.715361] active_file:10 inactive_file:30 isolated_file:0 [ 38.715361] unevictable:0 dirty:0 writeback:0 unstable:0 executing program [ 38.715361] slab_reclaimable:4275 slab_unreclaimable:56736 [ 38.715361] mapped:39 shmem:48 pagetables:357 bounce:0 [ 38.715361] free:20 free_pcp:0 free_cma:0 [ 38.715373] Node 0 active_anon:12916kB inactive_anon:164kB active_file:40kB inactive_file:120kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:156kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 38.715389] DMA32 free:80kB min:4696kB low:7712kB high:10728kB active_anon:8kB inactive_anon:0kB active_file:16kB inactive_file:120kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:32kB slab_unreclaimable:40kB kernel_stack:0kB pagetables:4kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 38.715411] Normal free:0kB min:5580kB low:9168kB high:12756kB active_anon:12908kB inactive_anon:164kB active_file:132kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17068kB slab_unreclaimable:226904kB kernel_stack:3424kB pagetables:1424kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 38.715441] DMA32: 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 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 115 total pagecache pages [ 38.715471] 0 pages in swap cache [ 38.715474] Swap cache stats: add 0, delete 0, find 0/0 [ 38.715476] Free swap = 0kB [ 38.715478] Total swap = 0kB [ 38.715480] 1965979 pages RAM [ 38.715481] 0 pages HighMem/MovableOnly [ 38.715483] 313625 pages reserved [ 38.741057] oom_reaper: reaped process 2064 (syz-executor158), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 38.844928] syz-executor158 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 [ 38.844938] CPU: 1 PID: 2067 Comm: syz-executor158 Tainted: G W 4.9.185+ #7 [ 38.844952] ffff8801cee276c0 ffffffff81b57f51 ffff8801cee27a18 ffffffff833f0c30 [ 38.844960] 00000000000003e8 ffff8801cee27a30 0000000000000000 ffff8801cee27740 [ 38.844967] ffffffff8150548b 0000000000000000 00000000000003e8 ffffffff8281a135 ** 2 printk messages dropped ** [ 38.844997] [<000000003f48434d>] dump_header.isra.0+0x142/0x74c ** 29 printk messages dropped ** [ 38.845230] [<000000003b419c55>] sock_common_setsockopt+0x9a/0xe0 ** 96 printk messages dropped ** [ 38.900711] [<0000000093809411>] ? SyS_recv+0x40/0x40 ** 300 printk messages dropped ** [ 39.697961] lowmem_reserve[]: 0 0 0 ** 94 printk messages dropped ** [ 39.753696] lowmem_reserve[]: 0 0 0 ** 95 printk messages dropped ** [ 39.756839] ffff88016bf1fac0lowmem_reserve[]: [ 39.756842] 0 ffffffff81506743 [ 39.756845] 0 0000000041b58ab3 0 ffffffff82e3a198 ffffffff81430320DMA32: 0*4kB Call Trace: [ 39.756861] 0*8kB [<0000000026ff606e>] dump_stack+0xc1/0x120 [ 39.756868] 0*16kB [<00000000b8f17540>] warn_alloc.cold+0x76/0x93 executing program executing program executing program [ 39.756875] 0*32kB [<00000000bb9bbada>] ? zone_watermark_ok_safe+0x260/0x260 [ 39.756881] 0*64kB [<000000000f375587>] __vmalloc_node_range+0x3ff/0x610 [ 39.756888] 0*128kB [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 39.756893] 0*256kB [<00000000477733d3>] vmalloc+0x5c/0x70 [ 39.756900] 0*512kB [<0000000052031eb0>] ? xt_alloc_table_info+0xc8/0x100 [ 39.756906] 0*1024kB [<0000000052031eb0>] xt_alloc_table_info+0xc8/0x100 [ 39.756913] 0*2048kB [<00000000be1fdcdd>] do_ipt_set_ctl+0x231/0x470 [ 39.756920] 0*4096kB [<00000000afa59c6b>] ? compat_do_ipt_set_ctl+0x150/0x150 [ 39.756921] = 0kB [<0000000030989be8>] ? mutex_unlock+0x9/0x10 [ 39.756933] Normal: [<00000000fe0c3f04>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 39.756939] 0*4kB [<0000000067dc44a6>] nf_setsockopt+0x6d/0xc0 [ 39.756945] 0*8kB [<000000005573bd72>] ip_setsockopt+0x8a/0xa0 [ 39.756951] 0*16kB [<000000001d7356a5>] udp_setsockopt+0x4e/0x90 [ 39.756957] 0*32kB [<00000000c32ed434>] ipv6_setsockopt+0xa4/0x140 [ 39.756963] 0*64kB [<000000003f93e967>] tcp_setsockopt+0x8a/0xe0 [ 39.756970] 0*128kB [<000000003b419c55>] sock_common_setsockopt+0x9a/0xe0 [ 39.756976] 0*256kB [<0000000061368501>] SyS_setsockopt+0x159/0x240 [ 39.756982] 0*512kB [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 39.756989] 0*1024kB [<00000000d045f837>] ? __do_page_fault+0x545/0xa60 [ 39.756995] 0*2048kB [<00000000b3e381f9>] ? bad_area_access_error+0x3d0/0x3d0 [ 39.757001] 0*4096kB [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 39.757003] = 0kB [<000000001fffee2f>] do_syscall_64+0x1ad/0x5c0 [ 39.757008] 110 total pagecache pages [ 39.757013] [<00000000de4164e7>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 39.757014] 0 pages in swap cache [ 39.757015] Mem-Info: [ 39.757018] Swap cache stats: add 0, delete 0, find 0/0 [ 39.757028] active_anon:3213 inactive_anon:41 isolated_anon:0 [ 39.757028] active_file:7 inactive_file:55 isolated_file:0 [ 39.757028] unevictable:0 dirty:0 writeback:0 unstable:0 [ 39.757028] slab_reclaimable:4275 slab_unreclaimable:56745 [ 39.757028] mapped:36 shmem:48 pagetables:352 bounce:0 [ 39.757028] free:37 free_pcp:8 free_cma:0 ** 4 printk messages dropped ** [ 39.757051] 1965979 pages RAM [ 39.757053] lowmem_reserve[]: [ 39.757053] 0 pages HighMem/MovableOnly [ 39.757055] 0313625 pages reserved [ 39.757059] 3505 3505 Normal free:68kB min:5580kB low:9168kB high:12756kB active_anon:12808kB inactive_anon:164kB active_file:28kB inactive_file:124kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17068kB slab_unreclaimable:226904kB kernel_stack:3424kB pagetables:1392kB bounce:0kB free_pcp:20kB local_pcp:20kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 39.757105] 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 ** 91 printk messages dropped ** [ 40.369506] [ 2055] 0 2055 4380 11 4 2 0 0 syz-executor158 ** 204 printk messages dropped ** [ 41.277484] [<00000000d045f837>] ? __do_page_fault+0x545/0xa60 [ 41.277492] [<00000000b3e381f9>] ? bad_area_access_error+0x3d0/0x3d0 [ 41.277499] [<0000000093809411>] ? SyS_recv+0x40/0x40 [ 41.277506] [<000000001fffee2f>] do_syscall_64+0x1ad/0x5c0 [ 41.277514] [<00000000de4164e7>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 41.289735] lowmemorykiller: Killing 'syz-executor158' (2072) (tgid 2072), adj 1000, [ 41.289735] to free 44kB on behalf of 'syz-executor158' (2073) because [ 41.289735] cache 2052kB is below limit 6144kB for oom_score_adj 0 [ 41.289735] Free memory is -13380kB above reserved [ 41.349263] oom_reaper: reaped process 2072 (syz-executor158), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 41.483230] syz-executor158 invoked oom-killer: gfp_mask=0x24200ca(GFP_HIGHUSER_MOVABLE), nodemask=0, order=0, oom_score_adj=0 [ 41.483240] CPU: 0 PID: 2076 Comm: syz-executor158 Tainted: G W 4.9.185+ #7 [ 41.483255] ffff8801b56676f0 ffffffff81b57f51 ffff8801b5667a48 ffffffff833f0c30 [ 41.483264] 0000000000000000 ffff8801b5667a60 0000000000000000 ffff8801b5667770 [ 41.483272] ffffffff8150548b 0000000000000000 0000000000000000 ffffffff8281a135 [ 41.483274] Call Trace: [ 41.483291] [<0000000026ff606e>] dump_stack+0xc1/0x120 [ 41.483304] [<000000003f48434d>] dump_header.isra.0+0x142/0x74c [ 41.483313] [<00000000df9401fa>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 41.483320] [<00000000551b1296>] ? ___ratelimit+0x55/0x413 [ 41.483327] [<00000000e3ebfcb2>] oom_kill_process.cold+0xd/0xa74 [ 41.483338] [<00000000a1dd8713>] ? has_capability_noaudit+0x25/0x30 [ 41.483348] [<00000000fd77da47>] ? oom_badness.part.0+0x11d/0x600 [ 41.483354] [<000000008628e44c>] ? oom_badness.part.0+0x12f/0x600 [ 41.483361] [<00000000022fae11>] ? out_of_memory+0x6d3/0xea0 [ 41.483368] [<000000003cdbcd42>] out_of_memory+0x29b/0xea0 [ 41.483375] [<00000000ac46e85a>] ? out_of_memory+0x41c/0xea0 [ 41.483382] [<00000000a4cc69f9>] ? oom_killer_disable+0x210/0x210 executing program [ 41.483392] [<00000000afa0065d>] ? trace_hardirqs_on+0xd/0x10 [ 41.483398] [<00000000fd0d2aac>] ? __alloc_pages_nodemask+0x10d0/0x1a80 [ 41.483406] [<00000000ef1260e6>] __alloc_pages_nodemask+0x1730/0x1a80 [ 41.483415] [<000000000a6cfe9a>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 41.483423] [<000000009cf44e59>] ? page_cache_prev_hole+0x80/0x80 [ 41.483430] [<00000000e739ffc1>] ? find_get_entry+0x2a9/0x510 [ 41.483437] [<000000005b2f8b97>] ? find_get_entry+0x2d0/0x510 [ 41.483444] [<000000009cf44e59>] ? page_cache_prev_hole+0x80/0x80 [ 41.483451] [<00000000821378de>] pagecache_get_page+0x248/0x740 executing program executing program [ 41.483459] [<000000004fab65a4>] filemap_fault+0xb1f/0x1360 [ 41.483469] [<000000006bd63d68>] ext4_filemap_fault+0x72/0xa0 [ 41.483478] [<0000000004bd65ae>] __do_fault+0x2a8/0x6c0 executing program [ 41.483485] [<00000000cc2e10b1>] ? do_page_mkwrite+0x400/0x400 [ 41.483493] [<000000002d2e7808>] ? handle_mm_fault+0x1ba8/0x2420 [ 41.483500] [<00000000b30f93b8>] handle_mm_fault+0x11bc/0x2420 [ 41.483508] [<00000000d15d5ef7>] ? vm_insert_page+0x850/0x850 [ 41.483515] [<00000000b46db508>] ? vmacache_find+0x59/0x280 [ 41.483525] [<000000003542947c>] __do_page_fault+0x3f0/0xa60 [ 41.483532] [<00000000b3e381f9>] ? bad_area_access_error+0x3d0/0x3d0 [ 41.483541] [<00000000628acf2b>] ? SyS_setpgid+0x77/0x6c0 [ 41.483551] [<000000005f94d28d>] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.483558] [<000000008b0c8784>] do_page_fault+0x28/0x30 [ 41.483565] [<00000000b60f2fe7>] page_fault+0x25/0x30 [ 41.483568] Mem-Info: [ 41.483585] active_anon:3203 inactive_anon:41 isolated_anon:0 [ 41.483585] active_file:28 inactive_file:36 isolated_file:0 [ 41.483585] unevictable:0 dirty:0 writeback:0 unstable:0 [ 41.483585] slab_reclaimable:4277 slab_unreclaimable:56759 [ 41.483585] mapped:38 shmem:48 pagetables:363 bounce:0 [ 41.483585] free:6041 free_pcp:30 free_cma:0 [ 41.483598] Node 0 active_anon:12812kB inactive_anon:164kB active_file:112kB inactive_file:144kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:152kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 41.483617] DMA32 free:18588kB min:4696kB low:7712kB high:10728kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:100kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:32kB slab_unreclaimable:76kB kernel_stack:0kB pagetables:36kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 41.483642] Normal free:5576kB min:5580kB low:9168kB high:12756kB active_anon:12780kB inactive_anon:164kB active_file:112kB inactive_file:72kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17076kB slab_unreclaimable:226960kB kernel_stack:3424kB pagetables:1416kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 41.483690] DMA32: 3*4kB (M) 5*8kB (UM) 1*16kB (U) 0*32kB 162*64kB (UM) 10*128kB (UM) 5*256kB (UM) 1*512kB (U) 1*1024kB (M) 0*2048kB 1*4096kB (U) = 18628kB Normal: 123*4kB (M) 110*8kB (UM) 66*16kB (UM) 53*32kB (UM) 21*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5596kB ** 88 printk messages dropped ** [ 42.118638] Node 0 active_anon:11944kB inactive_anon:164kB active_file:96kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:124kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:14 all_unreclaimable? no [ 42.118655] DMA32 free:18696kB min:4696kB low:7712kB high:10728kB active_anon:8kB inactive_anon:0kB active_file:36kB inactive_file:56kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:32kB slab_unreclaimable:80kB kernel_stack:0kB pagetables:4kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB ** 85 printk messages dropped ** [ 42.141440] Free swap = 0kB [ 42.141441] Total swap = 0kB [ 42.141443] 1965979 pages RAM [ 42.141445] 0 pages HighMem/MovableOnly