Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 9.611485] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 34.557867] random: sshd: uninitialized urandom read (32 bytes read) [ 34.999272] random: sshd: uninitialized urandom read (32 bytes read) [ 35.316643] random: crng init done Warning: Permanently added '10.128.15.198' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 42.375278] lowmemorykiller: Killing 'syz-executor529' (2054) (tgid 2054), adj 1000, [ 42.375278] to free 40kB on behalf of 'kswapd0' (33) because [ 42.375278] cache 36480kB is below limit 65536kB for oom_score_adj 12 [ 42.375278] Free memory is -13120kB above reserved [ 42.407191] lowmemorykiller: Killing 'syz-executor529' (2054) (tgid 2054), adj 1000, [ 42.407191] to free 40kB on behalf of 'syz-executor529' (2059) because [ 42.407191] cache 34280kB is below limit 65536kB for oom_score_adj 12 [ 42.407191] Free memory is -13324kB above reserved [ 42.407198] BUG: sleeping function called from invalid context at kernel/fork.c:903 [ 42.407203] in_atomic(): 0, irqs_disabled(): 0, pid: 2059, name: syz-executor529 [ 42.407208] 2 locks held by syz-executor529/2059: [ 42.407234] #0: (shrinker_rwsem){++++..}, at: [<00000000186c9baf>] shrink_slab.part.0+0xb2/0xa20 [ 42.407252] #1: (rcu_read_lock){......}, at: [<0000000013c61803>] lowmem_scan+0x242/0xb50 [ 42.407264] Preemption disabled at: [ 42.407265] [<0000000026344c0c>] get_task_mm+0x20/0xc0 [ 42.407275] CPU: 1 PID: 2059 Comm: syz-executor529 Not tainted 4.9.186+ #9 [ 42.407290] ffff8801cf407380 ffffffff81b5a0b1 0000000000000000 0000000000000001 [ 42.407299] ffff8801d0468000 ffffffff810d0cc0 ffff8801d0468000 ffff8801cf4073b8 [ 42.407309] ffffffff8140032c ffff8801d0468000 ffffffff82a39940 0000000000000387 [ 42.407311] Call Trace: [ 42.407323] [<00000000cf2ef30a>] dump_stack+0xc1/0x120 [ 42.407330] [<0000000026344c0c>] ? get_task_mm+0x20/0xc0 [ 42.407340] [<00000000dc20f477>] ___might_sleep.cold+0x1c1/0x1fa [ 42.407351] [<00000000b5cce201>] __might_sleep+0x95/0x1a0 [ 42.407358] [<00000000062070aa>] mmput+0x28/0x370 [ 42.407366] [<00000000430c4d4f>] handle_lmk_event+0xea/0x8a0 [ 42.407373] [<0000000056d4171f>] lowmem_scan+0x695/0xb50 [ 42.407381] [<0000000038175990>] shrink_slab.part.0+0x3cf/0xa20 [ 42.407390] [<0000000062aa11ca>] ? unregister_shrinker+0x230/0x230 [ 42.407402] [<00000000d9b1e27d>] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.407409] [<000000005853dc6c>] shrink_node+0x1ed/0x750 [ 42.407416] [<00000000a9b13201>] ? shrink_node_memcg.isra.0+0x1360/0x1360 [ 42.407424] [<00000000c2e05bae>] ? __delayacct_freepages_start+0x41/0x80 [ 42.407430] [<0000000014d514dc>] try_to_free_pages+0x397/0xbd0 [ 42.407436] [<00000000357248ef>] ? shrink_node+0x750/0x750 [ 42.407443] [<0000000068072ad5>] __alloc_pages_nodemask+0x930/0x1a80 [ 42.407452] [<000000004f08167d>] ? retint_kernel+0x2d/0x2d [ 42.407462] [<0000000032620a64>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 42.407469] [<00000000ad5fe1f4>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 42.407475] [<00000000d9b1e27d>] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.407481] [<000000004f08167d>] ? retint_kernel+0x2d/0x2d [ 42.407490] [<0000000019b4bc50>] __vmalloc_node_range+0x25b/0x610 [ 42.407500] [<00000000714090b1>] ? xt_alloc_table_info+0xc8/0x100 [ 42.407506] [<00000000453ab9b5>] vmalloc+0x5c/0x70 [ 42.407512] [<00000000714090b1>] ? xt_alloc_table_info+0xc8/0x100 [ 42.407518] [<00000000714090b1>] xt_alloc_table_info+0xc8/0x100 [ 42.407525] [<0000000054a98f70>] do_replace.isra.0+0x111/0x480 [ 42.407531] [<00000000c4f5b9cc>] ? compat_do_replace.isra.0+0x4e0/0x4e0 [ 42.407540] [<000000001c19cb40>] ? __mutex_unlock_slowpath+0x25c/0x3e0 [ 42.407547] [<0000000012b42e28>] ? __cap_capable+0x182/0x1d0 [ 42.407556] [<000000004549ce20>] ? ns_capable_common+0x12c/0x160 [ 42.407561] [<00000000c445d224>] do_arpt_set_ctl+0x108/0x150 [ 42.407572] [<000000005e75cb94>] nf_setsockopt+0x6d/0xc0 [ 42.407580] [<00000000027467ba>] ip_setsockopt+0x8a/0xa0 [ 42.407589] [<0000000027f23a32>] tcp_setsockopt+0x8a/0xe0 [ 42.407599] [<00000000a549c4b3>] sock_common_setsockopt+0x9a/0xe0 [ 42.407607] [<000000008fe69580>] SyS_setsockopt+0x159/0x240 [ 42.407614] [<000000004363341c>] ? SyS_recv+0x40/0x40 [ 42.407621] [<000000007a32df76>] ? do_syscall_64+0x4a/0x5c0 [ 42.407629] [<000000004363341c>] ? SyS_recv+0x40/0x40 [ 42.407635] [<00000000b4067aab>] do_syscall_64+0x1ad/0x5c0 [ 42.407643] [<00000000bc5e0e5d>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 42.408446] [ 42.408448] ================================= [ 42.408450] [ INFO: inconsistent lock state ] [ 42.408456] 4.9.186+ #9 Tainted: G W [ 42.408457] --------------------------------- [ 42.408460] inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-R} usage. [ 42.408468] syz-executor529/2059 [HC0[0]:SC0[0]:HE1:SE1] takes: [ 42.408481] (&mm->mmap_sem){+++++?}, at: [<000000006d60eca0>] get_cmdline+0xa3/0x2d0 {RECLAIM_FS-ON-W} state was registered at: [ 42.408490] mark_held_locks+0xb1/0x100 [ 42.408496] lockdep_trace_alloc+0x18c/0x2b0 [ 42.408502] __alloc_pages_nodemask+0x143/0x1a80 [ 42.408509] __pmd_alloc+0x4a/0x330 [ 42.408514] move_page_tables+0xadb/0xd60 [ 42.408519] shift_arg_pages+0x1ae/0x470 [ 42.408522] setup_arg_pages+0x60d/0x7c0 [ 42.408529] load_elf_binary+0xa84/0x4a90 [ 42.408533] search_binary_handler+0x14f/0x700 [ 42.408537] do_execveat_common.isra.0+0xf81/0x1db0 [ 42.408541] do_execve+0x3a/0x50 [ 42.408546] run_init_process+0x33/0x37 [ 42.408551] try_to_run_init_process+0x18/0x48 [ 42.408557] kernel_init+0xf2/0x163 [ 42.408561] ret_from_fork+0x5c/0x70 [ 42.408563] irq event stamp: 555221 [ 42.408569] hardirqs last enabled at (555221): [<000000004f08167d>] restore_regs_and_iret+0x0/0x1d [ 42.408575] hardirqs last disabled at (555219): [<000000000ecdeb60>] __do_softirq+0x37d/0x964 [ 42.408580] softirqs last enabled at (555220): [<00000000f9b8d1eb>] __do_softirq+0x474/0x964 [ 42.408586] softirqs last disabled at (554141): [<00000000a27783e7>] irq_exit+0x119/0x160 [ 42.408588] [ 42.408588] other info that might help us debug this: [ 42.408589] Possible unsafe locking scenario: [ 42.408589] [ 42.408590] CPU0 [ 42.408590] ---- [ 42.408600] lock(&mm->mmap_sem); [ 42.408601] [ 42.408604] lock(&mm->mmap_sem); [ 42.408605] [ 42.408605] *** DEADLOCK *** [ 42.408605] [ 42.408608] 3 locks held by syz-executor529/2059: [ 42.408617] #0: (shrinker_rwsem){++++..}, at: [<00000000186c9baf>] shrink_slab.part.0+0xb2/0xa20 [ 42.408627] #1: (rcu_read_lock){......}, at: [<0000000013c61803>] lowmem_scan+0x242/0xb50 [ 42.408635] #2: (lmk_event_lock){+.+.-.}, at: [<00000000160875c3>] handle_lmk_event+0xfb/0x8a0 [ 42.408636] [ 42.408636] stack backtrace: [ 42.408642] CPU: 1 PID: 2059 Comm: syz-executor529 Tainted: G W 4.9.186+ #9 [ 42.408651] ffff8801cf4070c0 ffffffff81b5a0b1 00000000000000f0 ffff8801d0468000 [ 42.408657] ffffffff83caf760 ffff8801d0468948 ffffffff84250ec0 ffff8801cf407138 [ 42.408664] ffffffff81406d69 0000000000000000 ffffffff00000001 0000000000000001 [ 42.408682] Call Trace: [ 42.408690] [<00000000cf2ef30a>] dump_stack+0xc1/0x120 [ 42.408698] [<000000003d8505c7>] print_usage_bug.cold+0x452/0x5a2 executing program executing program executing program executing program [ 42.408707] [<00000000ae0e6487>] mark_lock+0x6c7/0x12e0 [ 42.408713] [<00000000e7ac137d>] ? print_irq_inversion_bug+0xa0/0xa0 [ 42.408719] [<00000000fa86d9ed>] __lock_acquire+0x5c3/0x4350 [ 42.408724] [<00000000beb1c1c1>] ? trace_hardirqs_on+0x10/0x10 [ 42.408730] [<00000000ad5fe1f4>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 42.408743] [<00000000cf805bc5>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 42.408748] [<000000005ecaa60c>] lock_acquire+0x133/0x3d0 [ 42.408753] [<000000006d60eca0>] ? get_cmdline+0xa3/0x2d0 [ 42.408758] [<00000000fa90dacc>] down_read+0x44/0xb0 [ 42.408763] [<000000006d60eca0>] ? get_cmdline+0xa3/0x2d0 [ 42.408767] [<000000006d60eca0>] get_cmdline+0xa3/0x2d0 [ 42.408772] [<0000000026f0a86c>] handle_lmk_event+0x13c/0x8a0 [ 42.408777] [<0000000056d4171f>] lowmem_scan+0x695/0xb50 [ 42.408783] [<0000000038175990>] shrink_slab.part.0+0x3cf/0xa20 [ 42.408788] [<0000000062aa11ca>] ? unregister_shrinker+0x230/0x230 [ 42.408795] [<00000000d9b1e27d>] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.408800] [<000000005853dc6c>] shrink_node+0x1ed/0x750 [ 42.408806] [<00000000a9b13201>] ? shrink_node_memcg.isra.0+0x1360/0x1360 [ 42.408814] [<00000000c2e05bae>] ? __delayacct_freepages_start+0x41/0x80 [ 42.408819] [<0000000014d514dc>] try_to_free_pages+0x397/0xbd0 [ 42.408825] [<00000000357248ef>] ? shrink_node+0x750/0x750 [ 42.408830] [<0000000068072ad5>] __alloc_pages_nodemask+0x930/0x1a80 [ 42.408835] [<000000004f08167d>] ? retint_kernel+0x2d/0x2d [ 42.408841] [<0000000032620a64>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 42.408846] [<00000000ad5fe1f4>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 42.408851] [<00000000d9b1e27d>] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.408856] [<000000004f08167d>] ? retint_kernel+0x2d/0x2d [ 42.408861] [<0000000019b4bc50>] __vmalloc_node_range+0x25b/0x610 [ 42.408868] [<00000000714090b1>] ? xt_alloc_table_info+0xc8/0x100 [ 42.408872] [<00000000453ab9b5>] vmalloc+0x5c/0x70 [ 42.408877] [<00000000714090b1>] ? xt_alloc_table_info+0xc8/0x100 [ 42.408882] [<00000000714090b1>] xt_alloc_table_info+0xc8/0x100 [ 42.408888] [<0000000054a98f70>] do_replace.isra.0+0x111/0x480 [ 42.408893] [<00000000c4f5b9cc>] ? compat_do_replace.isra.0+0x4e0/0x4e0 [ 42.408898] [<000000001c19cb40>] ? __mutex_unlock_slowpath+0x25c/0x3e0 [ 42.408903] [<0000000012b42e28>] ? __cap_capable+0x182/0x1d0 [ 42.408909] [<000000004549ce20>] ? ns_capable_common+0x12c/0x160 [ 42.408914] [<00000000c445d224>] do_arpt_set_ctl+0x108/0x150 [ 42.408922] [<000000005e75cb94>] nf_setsockopt+0x6d/0xc0 [ 42.408927] [<00000000027467ba>] ip_setsockopt+0x8a/0xa0 [ 42.408932] [<0000000027f23a32>] tcp_setsockopt+0x8a/0xe0 [ 42.408939] [<00000000a549c4b3>] sock_common_setsockopt+0x9a/0xe0 [ 42.408944] [<000000008fe69580>] SyS_setsockopt+0x159/0x240 [ 42.408949] [<000000004363341c>] ? SyS_recv+0x40/0x40 [ 42.408954] [<000000007a32df76>] ? do_syscall_64+0x4a/0x5c0 [ 42.408959] [<000000004363341c>] ? SyS_recv+0x40/0x40 [ 42.408963] [<00000000b4067aab>] do_syscall_64+0x1ad/0x5c0 [ 42.408968] [<00000000bc5e0e5d>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 42.708804] oom_reaper: reaped process 2054 (syz-executor529), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 42.723556] syz-executor529 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 [ 42.723567] CPU: 1 PID: 2059 Comm: syz-executor529 Tainted: G W 4.9.186+ #9 [ 42.723584] ffff8801cf4076a8 ffffffff81b5a0b1 ffff8801cf407a00 ffffffff833f11f0 [ 42.723594] 00000000000003e8 ffff8801cf407a18 0000000000000000 ffff8801cf407728 [ 42.723604] ffffffff815054bb 0000000000000000 00000000000003e8 ffffffff8281c295 [ 42.723606] Call Trace: [ 42.723623] [<00000000cf2ef30a>] dump_stack+0xc1/0x120 [ 42.723634] [<00000000761a5b76>] dump_header.isra.0+0x142/0x74c [ 42.723645] [<0000000031449266>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 42.723653] [<00000000bce0645c>] ? ___ratelimit+0x55/0x413 [ 42.723666] [<00000000d3ff222a>] oom_kill_process.cold+0xd/0xa74 [ 42.723675] [<00000000686f96c7>] ? has_capability_noaudit+0x25/0x30 [ 42.723687] [<00000000d1103d52>] ? oom_badness.part.0+0x11d/0x600 [ 42.723694] [<00000000c99ec3e1>] ? oom_badness.part.0+0x12f/0x600 [ 42.723702] [<00000000b9db8685>] ? out_of_memory+0x6d3/0xea0 [ 42.723709] [<00000000c8b18057>] out_of_memory+0x29b/0xea0 [ 42.723717] [<000000007f67a76d>] ? out_of_memory+0x41c/0xea0 [ 42.723724] [<000000002e6ab653>] ? oom_killer_disable+0x210/0x210 [ 42.723734] [<00000000dbc66734>] ? trace_hardirqs_on+0xd/0x10 [ 42.723741] [<0000000065402cad>] ? __alloc_pages_nodemask+0x10d0/0x1a80 [ 42.723748] [<0000000090a0304d>] __alloc_pages_nodemask+0x1730/0x1a80 [ 42.723758] [<0000000032620a64>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 42.723765] [<00000000ad5fe1f4>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 42.723775] [<00000000d9b1e27d>] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.723783] [<000000004f08167d>] ? retint_kernel+0x2d/0x2d [ 42.723793] [<0000000019b4bc50>] __vmalloc_node_range+0x25b/0x610 [ 42.723804] [<00000000714090b1>] ? xt_alloc_table_info+0xc8/0x100 [ 42.723812] [<00000000453ab9b5>] vmalloc+0x5c/0x70 [ 42.723819] [<00000000714090b1>] ? xt_alloc_table_info+0xc8/0x100 [ 42.723826] [<00000000714090b1>] xt_alloc_table_info+0xc8/0x100 [ 42.723835] [<0000000054a98f70>] do_replace.isra.0+0x111/0x480 [ 42.723842] [<00000000c4f5b9cc>] ? compat_do_replace.isra.0+0x4e0/0x4e0 [ 42.723851] [<000000001c19cb40>] ? __mutex_unlock_slowpath+0x25c/0x3e0 [ 42.723859] [<0000000012b42e28>] ? __cap_capable+0x182/0x1d0 [ 42.723867] [<000000004549ce20>] ? ns_capable_common+0x12c/0x160 [ 42.723874] [<00000000c445d224>] do_arpt_set_ctl+0x108/0x150 [ 42.723883] [<000000005e75cb94>] nf_setsockopt+0x6d/0xc0 [ 42.723890] [<00000000027467ba>] ip_setsockopt+0x8a/0xa0 [ 42.723897] [<0000000027f23a32>] tcp_setsockopt+0x8a/0xe0 executing program [ 42.723907] [<00000000a549c4b3>] sock_common_setsockopt+0x9a/0xe0 [ 42.723915] [<000000008fe69580>] SyS_setsockopt+0x159/0x240 [ 42.723922] [<000000004363341c>] ? SyS_recv+0x40/0x40 [ 42.723929] [<000000007a32df76>] ? do_syscall_64+0x4a/0x5c0 [ 42.723936] [<000000004363341c>] ? SyS_recv+0x40/0x40 [ 42.723943] [<00000000b4067aab>] do_syscall_64+0x1ad/0x5c0 executing program [ 42.723950] [<00000000bc5e0e5d>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 42.723954] Mem-Info: [ 42.723971] active_anon:3204 inactive_anon:40 isolated_anon:0 [ 42.723971] active_file:11 inactive_file:13 isolated_file:0 [ 42.723971] unevictable:0 dirty:3 writeback:0 unstable:0 [ 42.723971] slab_reclaimable:4241 slab_unreclaimable:56773 [ 42.723971] mapped:19 shmem:48 pagetables:352 bounce:0 [ 42.723971] free:6048 free_pcp:38 free_cma:0 executing program [ 42.723984] Node 0 active_anon:12816kB inactive_anon:160kB active_file:44kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:76kB dirty:12kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 42.724002] DMA32 free:18696kB 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 executing program lowmem_reserve[]: 0 3505 3505 [ 42.724027] Normal free:5496kB min:5580kB low:9168kB high:12756kB active_anon:12816kB inactive_anon:160kB active_file:44kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:16964kB slab_unreclaimable:227092kB kernel_stack:3456kB pagetables:1408kB bounce:0kB free_pcp:152kB local_pcp:120kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 42.729774] DMA32: 2*4kB (M) 3*8kB (M) 3*16kB (UM) 3*32kB (UM) 2*64kB (UM) 4*128kB (UM) 4*256kB (UM) 1*512kB (M) 2*1024kB (M) 1*2048kB (M) 3*4096kB (M) = 18736kB Normal: 331*4kB (MH) 136*8kB (UMEH) 70*16kB (UMEH) 34*32kB (MEH) 6*64kB (MH) 0*128kB 0*256kB 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 5516kB 90 total pagecache pages [ 42.729816] 0 pages in swap cache [ 42.729820] Swap cache stats: add 0, delete 0, find 0/0 [ 42.729822] Free swap = 0kB [ 42.729824] Total swap = 0kB [ 42.729826] 1965979 pages RAM [ 42.729828] 0 pages HighMem/MovableOnly [ 42.729830] 313625 pages reserved [ 42.729833] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 42.729848] [ 470] 0 470 5384 178 16 3 0 -1000 udevd [ 42.729855] [ 568] 0 568 5383 169 15 3 0 -1000 udevd [ 42.729861] [ 569] 0 569 5383 171 15 3 0 -1000 udevd [ 42.729867] [ 1746] 0 1746 2492 572 8 3 0 0 dhclient [ 42.729874] [ 1887] 0 1887 14231 109 23 3 0 0 rsyslogd [ 42.729880] [ 1937] 0 1937 4724 50 15 3 0 0 cron [ 42.729887] [ 1960] 0 1960 3736 45 11 3 0 0 mcstransd [ 42.729893] [ 1965] 0 1965 12926 1228 27 3 0 0 restorecond [ 42.729900] [ 1988] 0 1988 12489 152 28 3 0 -1000 sshd [ 42.729906] [ 2018] 0 2018 3648 40 13 3 0 0 getty [ 42.729912] [ 2043] 0 2043 3648 43 12 3 0 0 getty [ 42.729918] [ 2044] 0 2044 3648 43 13 3 0 0 getty [ 42.729924] [ 2045] 0 2045 3648 42 13 3 0 0 getty [ 42.729931] [ 2046] 0 2046 3648 44 12 3 0 0 getty executing program [ 42.729938] [ 2047] 0 2047 3648 42 13 3 0 0 getty [ 42.729944] [ 2048] 0 2048 3648 41 12 3 0 0 getty [ 42.729950] [ 2049] 0 2049 17820 197 37 3 0 0 sshd [ 42.729956] [ 2051] 0 2051 4380 1 4 2 0 0 syz-executor529 executing program [ 42.729963] [ 2052] 0 2052 4380 10 4 2 0 0 syz-executor529 [ 42.729968] [ 2053] 0 2053 4380 10 4 2 0 0 syz-executor529 [ 42.729975] [ 2054] 0 2054 4380 0 5 2 0 1000 syz-executor529 [ 42.729983] [ 2055] 0 2055 4380 10 4 2 0 0 syz-executor529 [ 42.729992] [ 2056] 0 2056 4380 10 4 2 0 0 syz-executor529 [ 42.730001] [ 2057] 0 2057 4380 10 4 2 0 0 syz-executor529 [ 42.730010] [ 2058] 0 2058 4380 10 4 2 0 0 syz-executor529 [ 42.730019] [ 2059] 0 2059 4380 10 5 2 0 1000 syz-executor529 [ 42.730028] [ 2060] 0 2060 4380 10 5 2 0 1000 syz-executor529 [ 42.730037] [ 2061] 0 2061 4380 10 5 2 0 1000 syz-executor529 [ 42.730046] [ 2062] 0 2062 4380 10 5 2 0 1000 syz-executor529 [ 42.730055] [ 2063] 0 2063 4380 10 5 2 0 1000 syz-executor529 [ 42.730060] Out of memory: Kill process 2059 (syz-executor529) score 999 or sacrifice child [ 42.730075] Killed process 2059 (syz-executor529) total-vm:17520kB, anon-rss:40kB, file-rss:0kB, shmem-rss:0kB [ 42.730242] oom_reaper: reaped process 2059 (syz-executor529), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 42.732166] syz-executor529 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 [ 42.732175] CPU: 0 PID: 2060 Comm: syz-executor529 Tainted: G W 4.9.186+ #9 [ 42.732189] ffff8801cf70f6a8 ffffffff81b5a0b1 ffff8801cf70fa00 ffffffff833f11f0 [ 42.732199] 00000000000003e8 ffff8801cf70fa18 0000000000000000 ffff8801cf70f728 [ 42.732208] ffffffff815054bb 0000000000000000 00000000000003e8 ffffffff8281c295 [ 42.732210] Call Trace: [ 42.732224] [<00000000cf2ef30a>] dump_stack+0xc1/0x120 [ 42.732234] [<00000000761a5b76>] dump_header.isra.0+0x142/0x74c executing program [ 42.732242] [<0000000031449266>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 42.732250] [<00000000bce0645c>] ? ___ratelimit+0x55/0x413 [ 42.732257] [<00000000d3ff222a>] oom_kill_process.cold+0xd/0xa74 [ 42.732267] [<00000000686f96c7>] ? has_capability_noaudit+0x25/0x30 [ 42.732276] [<00000000d1103d52>] ? oom_badness.part.0+0x11d/0x600 [ 42.732283] [<00000000c99ec3e1>] ? oom_badness.part.0+0x12f/0x600 [ 42.732290] [<00000000b9db8685>] ? out_of_memory+0x6d3/0xea0 [ 42.732297] [<00000000c8b18057>] out_of_memory+0x29b/0xea0 [ 42.732304] [<000000007f67a76d>] ? out_of_memory+0x41c/0xea0 [ 42.732311] [<000000002e6ab653>] ? oom_killer_disable+0x210/0x210 [ 42.732320] [<00000000dbc66734>] ? trace_hardirqs_on+0xd/0x10 [ 42.732327] [<0000000065402cad>] ? __alloc_pages_nodemask+0x10d0/0x1a80 [ 42.732333] [<0000000090a0304d>] __alloc_pages_nodemask+0x1730/0x1a80 [ 42.732342] [<0000000032620a64>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 42.732351] [<0000000019b4bc50>] __vmalloc_node_range+0x25b/0x610 [ 42.732360] [<00000000714090b1>] ? xt_alloc_table_info+0xc8/0x100 [ 42.732366] [<00000000453ab9b5>] vmalloc+0x5c/0x70 [ 42.732373] [<00000000714090b1>] ? xt_alloc_table_info+0xc8/0x100 [ 42.732380] [<00000000714090b1>] xt_alloc_table_info+0xc8/0x100 [ 42.732388] [<0000000054a98f70>] do_replace.isra.0+0x111/0x480 [ 42.732394] [<00000000c4f5b9cc>] ? compat_do_replace.isra.0+0x4e0/0x4e0 [ 42.732403] [<000000001c19cb40>] ? __mutex_unlock_slowpath+0x25c/0x3e0 [ 42.732411] [<0000000012b42e28>] ? __cap_capable+0x182/0x1d0 [ 42.732418] [<000000004549ce20>] ? ns_capable_common+0x12c/0x160 [ 42.732425] [<00000000c445d224>] do_arpt_set_ctl+0x108/0x150 executing program [ 42.732434] [<000000005e75cb94>] nf_setsockopt+0x6d/0xc0 [ 42.732441] [<00000000027467ba>] ip_setsockopt+0x8a/0xa0 [ 42.732447] [<0000000027f23a32>] tcp_setsockopt+0x8a/0xe0 [ 42.732456] [<00000000a549c4b3>] sock_common_setsockopt+0x9a/0xe0 [ 42.732463] [<000000008fe69580>] SyS_setsockopt+0x159/0x240 [ 42.732470] [<000000004363341c>] ? SyS_recv+0x40/0x40 [ 42.732477] [<000000007a32df76>] ? do_syscall_64+0x4a/0x5c0 [ 42.732488] [<000000004363341c>] ? SyS_recv+0x40/0x40 [ 42.732494] [<00000000b4067aab>] do_syscall_64+0x1ad/0x5c0 [ 42.732502] [<00000000bc5e0e5d>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 42.732546] Mem-Info: [ 42.732562] active_anon:3204 inactive_anon:40 isolated_anon:0 [ 42.732562] active_file:11 inactive_file:13 isolated_file:0 [ 42.732562] unevictable:0 dirty:3 writeback:0 unstable:0 [ 42.732562] slab_reclaimable:4241 slab_unreclaimable:56773 [ 42.732562] mapped:19 shmem:48 pagetables:352 bounce:0 [ 42.732562] free:4597 free_pcp:16 free_cma:0 [ 42.732574] Node 0 active_anon:12816kB inactive_anon:160kB active_file:44kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:76kB dirty:12kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 42.732591] DMA32 free:17104kB 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:72kB local_pcp:0kB free_cma:0kB executing program lowmem_reserve[]: 0 3505 3505 [ 42.732614] Normal free:1160kB min:5580kB low:9168kB high:12756kB active_anon:12816kB inactive_anon:160kB active_file:44kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:16964kB slab_unreclaimable:227092kB kernel_stack:3456kB pagetables:1408kB bounce:0kB free_pcp:64kB local_pcp:64kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 42.732660] DMA32: 2*4kB (M) 4*8kB (UM) 2*16kB (M) 1*32kB (M) 2*64kB (UM) 3*128kB (M) 4*256kB (UM) 2*512kB (UM) 2*1024kB (M) 2*2048kB (UM) 2*4096kB (M) = 17000kB Normal: 57*4kB (H) 7*8kB (H) 14*16kB (H) 3*32kB (H) 1*64kB (H) 0*128kB 0*256kB 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 1180kB 90 total pagecache pages [ 42.732699] 0 pages in swap cache [ 42.732702] Swap cache stats: add 0, delete 0, find 0/0 [ 42.732704] Free swap = 0kB [ 42.732706] Total swap = 0kB [ 42.732708] 1965979 pages RAM [ 42.732710] 0 pages HighMem/MovableOnly [ 42.732712] 313625 pages reserved [ 42.732714] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 42.732729] [ 470] 0 470 5384 178 16 3 0 -1000 udevd [ 42.732737] [ 568] 0 568 5383 169 15 3 0 -1000 udevd [ 42.732746] [ 569] 0 569 5383 171 15 3 0 -1000 udevd [ 42.732754] [ 1746] 0 1746 2492 572 8 3 0 0 dhclient [ 42.732762] [ 1887] 0 1887 14231 109 23 3 0 0 rsyslogd ** 21 printk messages dropped ** [ 42.732939] [ 2060] 0 2060 4380 10 5 2 0 1000 syz-executor529 ** 2 printk messages dropped ** [ 42.732966] [ 2063] 0 2063 4380 10 5 2 0 1000 syz-executor529 ** 280 printk messages dropped ** [ 42.779168] 90 total pagecache pages [ 42.779171] 0 pages in swap cache [ 42.779175] Swap cache stats: add 0, delete 0, find 0/0 [ 42.779177] Free swap = 0kB [ 42.779179] Total swap = 0kB executing program [ 42.779181] 1965979 pages RAM [ 42.779183] 0 pages HighMem/MovableOnly [ 42.779184] 313625 pages reserved [ 43.313809] ODEBUG: Out of memory. ODEBUG disabled [ 44.693835] lowmemorykiller: Killing 'syz-executor529' (2062) (tgid 2062), adj 1000, [ 44.693835] to free 40kB on behalf of 'syz-executor529' (2067) because [ 44.693835] cache 2160kB is below limit 6144kB for oom_score_adj 0 [ 44.693835] Free memory is -13348kB above reserved [ 44.693857] BUG: sleeping function called from invalid context at kernel/fork.c:903 [ 44.693861] in_atomic(): 0, irqs_disabled(): 0, pid: 2067, name: syz-executor529 [ 44.693863] INFO: lockdep is turned off. [ 44.693882] Preemption disabled at: [ 44.693882] [<0000000026344c0c>] get_task_mm+0x20/0xc0 [ 44.693891] CPU: 1 PID: 2067 Comm: syz-executor529 Tainted: G W 4.9.186+ #9 [ 44.693904] ffff8801cf407380 ffffffff81b5a0b1 0000000000000000 0000000000000001 [ 44.693911] ffff8801cefb97c0 ffffffff810d0cc0 ffff8801cefb97c0 ffff8801cf4073b8 [ 44.693917] ffffffff8140032c ffff8801cefb97c0 ffffffff82a39940 0000000000000387 executing program [ 44.693919] Call Trace: [ 44.693930] [<00000000cf2ef30a>] dump_stack+0xc1/0x120 [ 44.693937] [<0000000026344c0c>] ? get_task_mm+0x20/0xc0 [ 44.693947] [<00000000dc20f477>] ___might_sleep.cold+0x1c1/0x1fa [ 44.693960] [<00000000b5cce201>] __might_sleep+0x95/0x1a0 [ 44.693967] [<00000000062070aa>] mmput+0x28/0x370 [ 44.693975] [<00000000430c4d4f>] handle_lmk_event+0xea/0x8a0 [ 44.693982] [<0000000056d4171f>] lowmem_scan+0x695/0xb50 [ 44.693991] [<0000000038175990>] shrink_slab.part.0+0x3cf/0xa20 [ 44.693999] [<0000000062aa11ca>] ? unregister_shrinker+0x230/0x230 [ 44.694007] [<000000005853dc6c>] shrink_node+0x1ed/0x750 [ 44.694016] [<00000000a9b13201>] ? shrink_node_memcg.isra.0+0x1360/0x1360 [ 44.694028] [<00000000c2e05bae>] ? __delayacct_freepages_start+0x41/0x80 [ 44.694036] [<0000000014d514dc>] try_to_free_pages+0x397/0xbd0 [ 44.694043] [<00000000357248ef>] ? shrink_node+0x750/0x750 [ 44.694052] [<0000000068072ad5>] __alloc_pages_nodemask+0x930/0x1a80 [ 44.694062] [<0000000032620a64>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 44.694073] [<000000005cfa035d>] ? debug_lockdep_rcu_enabled+0x8/0xa0 [ 44.694082] [<0000000019b4bc50>] __vmalloc_node_range+0x25b/0x610 [ 44.694091] [<00000000714090b1>] ? xt_alloc_table_info+0xc8/0x100 [ 44.694098] [<00000000453ab9b5>] vmalloc+0x5c/0x70 executing program [ 44.694106] [<00000000714090b1>] ? xt_alloc_table_info+0xc8/0x100 [ 44.694113] [<00000000714090b1>] xt_alloc_table_info+0xc8/0x100 [ 44.694121] [<0000000054a98f70>] do_replace.isra.0+0x111/0x480 [ 44.694128] [<00000000c4f5b9cc>] ? compat_do_replace.isra.0+0x4e0/0x4e0 [ 44.694139] [<00000000c5bdc732>] ? mutex_unlock+0x9/0x10 [ 44.694147] [<0000000012b42e28>] ? __cap_capable+0x182/0x1d0 [ 44.694158] [<000000004549ce20>] ? ns_capable_common+0x12c/0x160 [ 44.694165] [<00000000c445d224>] do_arpt_set_ctl+0x108/0x150 [ 44.694173] [<000000005e75cb94>] nf_setsockopt+0x6d/0xc0 [ 44.694182] [<00000000027467ba>] ip_setsockopt+0x8a/0xa0 ** 2 printk messages dropped ** [ 44.694209] [<000000008fe69580>] SyS_setsockopt+0x159/0x240 ** 203 printk messages dropped ** [ 44.812362] ffffffff81b5a0b1** 7 printk messages dropped ** [ 44.812374] 3505** 2 printk messages dropped ** [ 44.812389] Normal free:1944kB min:5580kB low:9168kB high:12756kB active_anon:12808kB inactive_anon:160kB active_file:168kB inactive_file:228kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:16996kB slab_unreclaimable:227192kB kernel_stack:3456kB pagetables:1408kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB ffff8801c5647aa8lowmem_reserve[]: [ 44.812394] 0 ffffffff81506773 [ 44.812397] 0 0000000041b58ab3 0 ffffffff82e3a4c0 ffffffff81430350DMA32: 0*4kB Call Trace: [ 44.812414] 0*8kB [<00000000cf2ef30a>] dump_stack+0xc1/0x120 [ 44.812421] 0*16kB [<00000000499e3cab>] warn_alloc.cold+0x76/0x93 [ 44.812428] 0*32kB [<000000009a8f3a47>] ? zone_watermark_ok_safe+0x260/0x260 [ 44.812439] 0*64kB [<0000000075e85faa>] ? check_preemption_disabled+0x3c/0x200 [ 44.812446] 0*128kB [<00000000dfdb0e72>] __vmalloc_node_range+0x3ff/0x610 [ 44.812453] 0*256kB [<00000000714090b1>] ? xt_alloc_table_info+0xc8/0x100 [ 44.812458] 0*512kB [<00000000453ab9b5>] vmalloc+0x5c/0x70 [ 44.812465] 0*1024kB [<00000000714090b1>] ? xt_alloc_table_info+0xc8/0x100 [ 44.812472] 0*2048kB [<00000000714090b1>] xt_alloc_table_info+0xc8/0x100 [ 44.812478] 0*4096kB [<0000000054a98f70>] do_replace.isra.0+0x111/0x480 [ 44.812479] = 0kB [<00000000c4f5b9cc>] ? compat_do_replace.isra.0+0x4e0/0x4e0 [ 44.812491] Normal: [<000000001c19cb40>] ? __mutex_unlock_slowpath+0x25c/0x3e0 executing program [ 44.812497] 64*4kB [<0000000012b42e28>] ? __cap_capable+0x182/0x1d0 [ 44.812503] (H) [<000000004549ce20>] ? ns_capable_common+0x12c/0x160 [ 44.812509] 12*8kB [<00000000c445d224>] do_arpt_set_ctl+0x108/0x150 [ 44.812515] (H) [<000000005e75cb94>] nf_setsockopt+0x6d/0xc0 [ 44.812521] 17*16kB [<00000000027467ba>] ip_setsockopt+0x8a/0xa0 [ 44.812527] (H) [<0000000027f23a32>] tcp_setsockopt+0x8a/0xe0 [ 44.812534] 8*32kB [<00000000a549c4b3>] sock_common_setsockopt+0x9a/0xe0 [ 44.812540] (H) [<000000008fe69580>] SyS_setsockopt+0x159/0x240 [ 44.812546] 2*64kB [<000000004363341c>] ? SyS_recv+0x40/0x40 [ 44.812552] (H) [<000000007a32df76>] ? do_syscall_64+0x4a/0x5c0 [ 44.812558] 0*128kB [<000000004363341c>] ? SyS_recv+0x40/0x40 [ 44.812564] 2*256kB [<00000000b4067aab>] do_syscall_64+0x1ad/0x5c0 [ 44.812570] (H) [<00000000bc5e0e5d>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 44.812573] 1*512kB Mem-Info: [ 44.812584] (H) active_anon:3202 inactive_anon:40 isolated_anon:0 [ 44.812585] active_file:42 inactive_file:57 isolated_file:0 [ 44.812585] unevictable:0 dirty:0 writeback:0 unstable:0 [ 44.812585] slab_reclaimable:4249 slab_unreclaimable:56798 [ 44.812585] mapped:67 shmem:48 pagetables:352 bounce:0 [ 44.812585] free:494 free_pcp:0 free_cma:0 [ 44.812595] 0*1024kB Node 0 active_anon:12808kB inactive_anon:160kB active_file:168kB inactive_file:228kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:268kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no executing program [ 44.812608] 0*2048kB 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 0*4096kB lowmem_reserve[]: [ 44.812612] = 2032kB 0153 total pagecache pages [ 44.812617] 35050 pages in swap cache [ 44.812621] 3505** 112 printk messages dropped ** [ 44.819775] [<000000008fe69580>] SyS_setsockopt+0x159/0x240 ** 94 printk messages dropped ** [ 44.845618] ffff8801c46df980 [ 44.845619] Node 0 active_anon:12808kB inactive_anon:160kB active_file:168kB inactive_file:228kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:268kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 44.845632] ffffffff81b5a0b1DMA32 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 1ffff100388dbf32lowmem_reserve[]: [ 44.845637] dffffc0000000000 0 3505 ffffffff82aaa9c0 [ 44.845643] 3505 0000000000000000 0000000000400000Normal free:2032kB min:5580kB low:9168kB high:12756kB active_anon:12808kB inactive_anon:160kB active_file:168kB inactive_file:228kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:16996kB slab_unreclaimable:227192kB kernel_stack:3456kB pagetables:1408kB bounce:0kB free_pcp:12kB local_pcp:0kB free_cma:0kB executing program ffff8801c46dfaa8lowmem_reserve[]: [ 44.845664] 0 ffffffff81506773 [ 44.845666] 0 0000000041b58ab3 0 DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB ffffffff82e3a4c00*256kB ffffffff814303500*512kB 0*1024kB Call Trace: [ 44.845698] 0*2048kB [<00000000cf2ef30a>] dump_stack+0xc1/0x120 [ 44.845705] 0*4096kB [<00000000499e3cab>] warn_alloc.cold+0x76/0x93 [ 44.845706] = 0kB [<000000009a8f3a47>] ? zone_watermark_ok_safe+0x260/0x260 [ 44.845718] Normal: [<00000000dfdb0e72>] __vmalloc_node_range+0x3ff/0x610 [ 44.845725] 64*4kB [<00000000714090b1>] ? xt_alloc_table_info+0xc8/0x100 [ 44.845730] (H) [<00000000453ab9b5>] vmalloc+0x5c/0x70 [ 44.845737] 12*8kB [<00000000714090b1>] ? xt_alloc_table_info+0xc8/0x100 [ 44.845743] (H) [<00000000714090b1>] xt_alloc_table_info+0xc8/0x100 [ 44.845750] 17*16kB [<0000000054a98f70>] do_replace.isra.0+0x111/0x480 [ 44.845756] (H) [<00000000c4f5b9cc>] ? compat_do_replace.isra.0+0x4e0/0x4e0 [ 44.845762] 8*32kB [<00000000c5bdc732>] ? mutex_unlock+0x9/0x10 [ 44.845768] (H) [<0000000012b42e28>] ? __cap_capable+0x182/0x1d0 [ 44.845774] 2*64kB [<000000004549ce20>] ? ns_capable_common+0x12c/0x160 [ 44.845780] (H) [<00000000c445d224>] do_arpt_set_ctl+0x108/0x150 [ 44.845787] 0*128kB [<000000005e75cb94>] nf_setsockopt+0x6d/0xc0 [ 44.845793] 2*256kB [<00000000027467ba>] ip_setsockopt+0x8a/0xa0 [ 44.845798] (H) [<0000000027f23a32>] tcp_setsockopt+0x8a/0xe0 [ 44.845805] 1*512kB [<00000000a549c4b3>] sock_common_setsockopt+0x9a/0xe0 [ 44.845811] (H) [<000000008fe69580>] SyS_setsockopt+0x159/0x240 [ 44.845817] 0*1024kB [<000000004363341c>] ? SyS_recv+0x40/0x40 [ 44.845824] 0*2048kB [<00000000b0d4aeee>] ? bad_area_access_error+0x3d0/0x3d0 [ 44.845830] 0*4096kB [<000000004363341c>] ? SyS_recv+0x40/0x40 [ 44.845832] = 2032kB [<00000000b4067aab>] do_syscall_64+0x1ad/0x5c0 [ 44.845837] 153 total pagecache pages [ 44.845842] [<00000000bc5e0e5d>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 44.845844] 0 pages in swap cache [ 44.845845] Mem-Info: [ 44.845847] Swap cache stats: add 0, delete 0, find 0/0 [ 44.845857] active_anon:3202 inactive_anon:40 isolated_anon:0 [ 44.845857] active_file:42 inactive_file:57 isolated_file:0 [ 44.845857] unevictable:0 dirty:0 writeback:0 unstable:0 [ 44.845857] slab_reclaimable:4249 slab_unreclaimable:56798 [ 44.845857] mapped:67 shmem:48 pagetables:352 bounce:0 [ 44.845857] free:516 free_pcp:3 free_cma:0 [ 44.845858] Free swap = 0kB [ 44.845867] Node 0 active_anon:12808kB inactive_anon:160kB active_file:168kB inactive_file:228kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:268kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 44.845868] Total swap = 0kB executing program [ 44.845879] 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 1965979 pages RAM [ 44.845882] lowmem_reserve[]: [ 44.845883] 0 pages HighMem/MovableOnly [ 44.845885] 0313625 pages reserved [ 44.845888] 3505 3505 executing program Normal free:2032kB min:5580kB low:9168kB high:12756kB active_anon:12808kB inactive_anon:160kB active_file:168kB inactive_file:228kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:16996kB slab_unreclaimable:227192kB kernel_stack:3456kB pagetables:1408kB bounce:0kB free_pcp:12kB local_pcp:12kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 44.845939] 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: 64*4kB (H) 12*8kB (H) 17*16kB (H) 8*32kB (H) 2*64kB (H) 0*128kB 2*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 2032kB 153 total pagecache pages [ 44.845971] 0 pages in swap cache [ 44.845974] Swap cache stats: add 0, delete 0, find 0/0 [ 44.845976] Free swap = 0kB [ 44.845977] Total swap = 0kB [ 44.845979] 1965979 pages RAM [ 44.845980] 0 pages HighMem/MovableOnly [ 44.845982] 313625 pages reserved [ 44.868781] oom_reaper: reaped process 2066 (syz-executor529), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB ** 165 printk messages dropped ** [ 45.700763] [ 1965] 0 1965 12926 1228 27 3 0 0 restorecond ** 3 printk messages dropped ** [ 45.700795] [ 2044] 0 2044 3648 43 13 3 0 0 getty ** 87 printk messages dropped ** [ 45.720767] [ 1887] 0 1887 14231 109 23 3 0 0 rsyslogd ** 176 printk messages dropped ** [ 45.802910] ffff880182ef7980 ffffffff81b5a0b1 1ffff100305def32 dffffc0000000000 [ 45.802919] ffffffff82aaa9c0 0000000000000000 0000000000400000 ffff880182ef7aa8 [ 45.802927] ffffffff81506773 0000000041b58ab3 ffffffff82e3a4c0 ffffffff81430350 [ 45.802928] Call Trace: [ 45.802940] [<00000000cf2ef30a>] dump_stack+0xc1/0x120 [ 45.802949] [<00000000499e3cab>] warn_alloc.cold+0x76/0x93 [ 45.802958] [<000000009a8f3a47>] ? zone_watermark_ok_safe+0x260/0x260 [ 45.802967] [<00000000dfdb0e72>] __vmalloc_node_range+0x3ff/0x610 [ 45.802976] [<00000000714090b1>] ? xt_alloc_table_info+0xc8/0x100 [ 45.802982] [<00000000453ab9b5>] vmalloc+0x5c/0x70 [ 45.802989] [<00000000714090b1>] ? xt_alloc_table_info+0xc8/0x100 [ 45.802995] [<00000000714090b1>] xt_alloc_table_info+0xc8/0x100 executing program [ 45.803003] [<0000000054a98f70>] do_replace.isra.0+0x111/0x480 [ 45.803010] [<00000000c4f5b9cc>] ? compat_do_replace.isra.0+0x4e0/0x4e0 [ 45.803019] [<00000000c5bdc732>] ? mutex_unlock+0x9/0x10 [ 45.803026] [<0000000012b42e28>] ? __cap_capable+0x182/0x1d0 [ 45.803034] [<000000004549ce20>] ? ns_capable_common+0x12c/0x160 [ 45.803042] [<00000000c445d224>] do_arpt_set_ctl+0x108/0x150 [ 45.803050] [<000000005e75cb94>] nf_setsockopt+0x6d/0xc0 [ 45.803057] [<00000000027467ba>] ip_setsockopt+0x8a/0xa0 [ 45.803063] [<0000000027f23a32>] tcp_setsockopt+0x8a/0xe0 [ 45.803071] [<00000000a549c4b3>] sock_common_setsockopt+0x9a/0xe0 [ 45.803077] [<000000008fe69580>] SyS_setsockopt+0x159/0x240 [ 45.803092] [<000000004363341c>] ? SyS_recv+0x40/0x40 [ 45.803102] [<00000000b0d4aeee>] ? bad_area_access_error+0x3d0/0x3d0 [ 45.803108] [<000000004363341c>] ? SyS_recv+0x40/0x40 [ 45.803114] [<00000000b4067aab>] do_syscall_64+0x1ad/0x5c0 [ 45.803121] [<00000000bc5e0e5d>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 45.803124] Mem-Info: [ 45.803139] active_anon:1930 inactive_anon:40 isolated_anon:0 [ 45.803139] active_file:3 inactive_file:81 isolated_file:0 [ 45.803139] unevictable:0 dirty:0 writeback:0 unstable:0 [ 45.803139] slab_reclaimable:4253 slab_unreclaimable:56824 [ 45.803139] mapped:7 shmem:48 pagetables:315 bounce:0 [ 45.803139] free:869 free_pcp:254 free_cma:0 [ 45.803153] Node 0 active_anon:7720kB inactive_anon:160kB active_file:12kB inactive_file:324kB 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 [ 45.803170] DMA32 free:0kB min:4696kB low:7712kB high:10728kB active_anon:88kB inactive_anon:0kB active_file:0kB inactive_file:100kB unevictable:0kB writepending:0kB present:3145324kB managed:3020100kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:48kB kernel_stack:64kB pagetables:48kB bounce:0kB free_pcp:388kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 45.803194] Normal free:3476kB min:5580kB low:9168kB high:12756kB active_anon:7732kB inactive_anon:160kB active_file:12kB inactive_file:224kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17012kB slab_unreclaimable:227248kB kernel_stack:3328kB pagetables:1212kB bounce:0kB free_pcp:416kB local_pcp:0kB free_cma:0kB executing program lowmem_reserve[]: 0 0 0 [ 45.803228] DMA32: 0*4kB 0*8kB 0*16kB 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 32kB Normal: 45*4kB (H) 38*8kB (H) 25*16kB (H) 19*32kB (H) 10*64kB (H) 3*128kB (H) 2*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 3540kB 156 total pagecache pages [ 45.803270] 0 pages in swap cache [ 45.803274] Swap cache stats: add 0, delete 0, find 0/0 [ 45.803276] Free swap = 0kB [ 45.803278] Total swap = 0kB [ 45.803280] 1965979 pages RAM [ 45.803282] 0 pages HighMem/MovableOnly [ 45.803284] 313625 pages reserved [ 46.965951] lowmemorykiller: Killing 'syz-executor529' (2073) (tgid 2073), adj 1000, [ 46.965951] to free 40kB on behalf of 'syz-executor529' (2074) because [ 46.965951] cache 2468kB is below limit 6144kB for oom_score_adj 0 [ 46.965951] Free memory is -13372kB above reserved