[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 10.351105] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 11.590730] random: sshd: uninitialized urandom read (32 bytes read) [ 11.687308] random: crng init done Warning: Permanently added '10.128.0.59' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 23.994908] lowmemorykiller: Killing 'syz-executor545' (2052) (tgid 2052), adj 1000, [ 23.994908] to free 44kB on behalf of 'kswapd0' (33) because [ 23.994908] cache 36696kB is below limit 65536kB for oom_score_adj 12 [ 23.994908] Free memory is -13312kB above reserved [ 24.009481] lowmemorykiller: Killing 'syz-executor545' (2052) (tgid 2052), adj 1000, [ 24.009481] to free 44kB on behalf of 'syz-executor545' (2061) because [ 24.009481] cache 34396kB is below limit 65536kB for oom_score_adj 12 [ 24.009481] Free memory is -13372kB above reserved [ 24.009510] [ 24.009512] ================================= [ 24.009513] [ INFO: inconsistent lock state ] [ 24.009519] 4.9.194+ #0 Not tainted [ 24.009520] --------------------------------- [ 24.009523] inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-R} usage. [ 24.009530] syz-executor545/2061 [HC0[0]:SC0[0]:HE1:SE1] takes: [ 24.009549] (&mm->mmap_sem){+++++?}, at: [<0000000036c883e2>] get_cmdline+0xa3/0x2d0 {RECLAIM_FS-ON-W} state was registered at: [ 24.009560] mark_held_locks+0xb1/0x100 [ 24.009565] lockdep_trace_alloc+0x18c/0x2b0 [ 24.009570] __alloc_pages_nodemask+0x143/0x1a80 [ 24.009577] __pmd_alloc+0x4a/0x330 [ 24.009584] move_page_tables+0xadb/0xd60 [ 24.009590] shift_arg_pages+0x1ae/0x470 [ 24.009595] setup_arg_pages+0x60d/0x7c0 [ 24.009604] load_elf_binary+0xa84/0x4a90 [ 24.009610] search_binary_handler+0x14f/0x700 [ 24.009616] do_execveat_common.isra.0+0xf81/0x1db0 [ 24.009620] do_execve+0x3a/0x50 [ 24.009627] run_init_process+0x33/0x37 [ 24.009632] try_to_run_init_process+0x18/0x48 [ 24.009640] kernel_init+0xf2/0x163 [ 24.009645] ret_from_fork+0x5c/0x70 [ 24.009647] irq event stamp: 480993 [ 24.009654] hardirqs last enabled at (480993): [<00000000f272d45b>] vprintk_emit+0x25c/0x6f0 [ 24.009659] hardirqs last disabled at (480992): [<00000000b919dad2>] vprintk_emit+0x6d/0x6f0 [ 24.009666] softirqs last enabled at (480558): [<00000000ff5d93f2>] __do_softirq+0x474/0x964 [ 24.009672] softirqs last disabled at (480381): [<000000001459ff2f>] irq_exit+0x119/0x160 [ 24.009674] [ 24.009674] other info that might help us debug this: [ 24.009675] Possible unsafe locking scenario: [ 24.009675] [ 24.009676] CPU0 [ 24.009677] ---- [ 24.009680] lock(&mm->mmap_sem); [ 24.009681] [ 24.009684] lock(&mm->mmap_sem); [ 24.009685] [ 24.009685] *** DEADLOCK *** [ 24.009685] [ 24.009688] 1 lock held by syz-executor545/2061: [ 24.009698] #0: (shrinker_rwsem){++++..}, at: [<00000000d1de71d1>] shrink_slab.part.0+0xb2/0xa20 [ 24.009699] [ 24.009699] stack backtrace: [ 24.009704] CPU: 1 PID: 2061 Comm: syz-executor545 Not tainted 4.9.194+ #0 [ 24.009715] ffff8801c529efe0 ffffffff81b67001 00000000000000f0 ffff8801cfca5f00 [ 24.009721] ffffffff83cb0990 ffff8801cfca67f8 ffffffff84252000 ffff8801c529f058 [ 24.009728] ffffffff81408710 0000000000000000 ffffffff00000001 0000000000000001 [ 24.009729] Call Trace: [ 24.009737] [<000000005f635303>] dump_stack+0xc1/0x120 [ 24.009745] [<0000000013638cec>] print_usage_bug.cold+0x452/0x5a2 [ 24.009750] [<000000007f1bdb02>] mark_lock+0x6c7/0x12e0 [ 24.009755] [<000000002d06a920>] ? print_irq_inversion_bug+0xa0/0xa0 [ 24.009760] [<00000000f5a23caa>] __lock_acquire+0x5be/0x4390 [ 24.009765] [<00000000b88e434a>] ? trace_hardirqs_on+0x10/0x10 [ 24.009770] [<00000000b88e434a>] ? trace_hardirqs_on+0x10/0x10 [ 24.009776] [<000000008942eaee>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 24.009781] [<0000000008ddc09a>] lock_acquire+0x133/0x3d0 [ 24.009786] [<0000000036c883e2>] ? get_cmdline+0xa3/0x2d0 [ 24.009790] [<0000000004c6729f>] down_read+0x44/0xb0 [ 24.009795] [<0000000036c883e2>] ? get_cmdline+0xa3/0x2d0 [ 24.009799] [<0000000036c883e2>] get_cmdline+0xa3/0x2d0 [ 24.009807] [<0000000007935cba>] handle_lmk_event+0x169/0x920 [ 24.009812] [<000000009842faaa>] ? lmk_event_show+0x390/0x390 [ 24.009816] [<00000000ef18b939>] ? vprintk+0x28/0x30 [ 24.009821] [<000000008942eaee>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 24.009827] [<00000000ea67c72f>] ? kill_pid_info_as_cred+0x540/0x540 [ 24.009833] [<00000000f50e1eee>] ? check_preemption_disabled+0x3c/0x200 [ 24.009839] [<00000000f50e1eee>] ? check_preemption_disabled+0x3c/0x200 [ 24.009844] [<00000000f50e1eee>] ? check_preemption_disabled+0x3c/0x200 [ 24.009849] [<000000003f949e11>] ? lowmem_scan+0x6ae/0xb70 [ 24.009854] [<00000000ad9b9c3b>] lowmem_scan+0x6f3/0xb70 [ 24.009859] [<00000000ba9d8420>] shrink_slab.part.0+0x3cf/0xa20 [ 24.009865] [<0000000090f99f0e>] ? unregister_shrinker+0x230/0x230 [ 24.009871] [<00000000eecbfa21>] shrink_node+0x1ed/0x750 [ 24.009876] [<00000000d2bfce82>] ? shrink_node_memcg.isra.0+0x1360/0x1360 [ 24.009885] [<00000000136c9878>] ? __delayacct_freepages_start+0x41/0x80 [ 24.009890] [<000000001f151866>] try_to_free_pages+0x397/0xbd0 [ 24.009895] [<0000000008c92014>] ? shrink_node+0x750/0x750 [ 24.009901] [<00000000a7ee7261>] __alloc_pages_nodemask+0x930/0x1a80 [ 24.009905] [<0000000099d061e7>] ? __switch_to_asm+0x35/0x70 [ 24.009910] [<00000000226fa3a7>] ? retint_kernel+0x2d/0x2d [ 24.009915] [<00000000c9205578>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 24.009920] [<000000000a9cc6a5>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 24.009926] [<0000000029d926dc>] __vmalloc_node_range+0x25b/0x610 [ 24.009934] [<000000008bdc8367>] ? xt_alloc_table_info+0xc8/0x100 [ 24.009938] [<000000008cdc1f5c>] vmalloc+0x5c/0x70 [ 24.009944] [<000000008bdc8367>] ? xt_alloc_table_info+0xc8/0x100 [ 24.009949] [<000000008bdc8367>] xt_alloc_table_info+0xc8/0x100 [ 24.009955] [<0000000054902202>] do_replace.isra.0+0x111/0x480 [ 24.009960] [<0000000044364884>] ? compat_do_replace.isra.0+0x4e0/0x4e0 executing program executing program executing program executing program [ 24.009964] [<000000005d15177a>] ? __mutex_unlock_slowpath+0x25c/0x3e0 [ 24.009971] [<00000000b1e34968>] ? __cap_capable+0x182/0x1d0 executing program [ 24.009977] [<000000003f8e39e5>] ? ns_capable_common+0x12c/0x160 [ 24.009982] [<000000006b7941ae>] do_arpt_set_ctl+0x108/0x150 [ 24.009988] [<00000000abfa8387>] nf_setsockopt+0x6d/0xc0 [ 24.009993] [<000000001e94b6a6>] ip_setsockopt+0x8a/0xa0 [ 24.009999] [<0000000012b71da5>] udp_setsockopt+0x4e/0x90 [ 24.010006] [<000000007f640252>] sock_common_setsockopt+0x9a/0xe0 executing program [ 24.010011] [<00000000f12aad17>] SyS_setsockopt+0x159/0x240 [ 24.010016] [<000000002ebb6df0>] ? SyS_recv+0x40/0x40 [ 24.010021] [<00000000a9915a3e>] ? __do_page_fault+0x545/0xa60 [ 24.010025] [<00000000577bced2>] ? do_syscall_64+0x4a/0x5c0 [ 24.010030] [<000000002ebb6df0>] ? SyS_recv+0x40/0x40 [ 24.010034] [<00000000e4396e01>] do_syscall_64+0x1ad/0x5c0 [ 24.010040] [<000000000119dc97>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 24.129186] oom_reaper: reaped process 2052 (syz-executor545), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 24.146723] syz-executor545 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 [ 24.146731] CPU: 1 PID: 2061 Comm: syz-executor545 Not tainted 4.9.194+ #0 [ 24.146746] ffff8801c529f6b0 ffffffff81b67001 ffff8801c529fa08 ffffffff833f1c30 [ 24.146756] 00000000000003e8 ffff8801c529fa20 0000000000000000 ffff8801c529f730 [ 24.146766] ffffffff81506e44 0000000000000000 00000000000003e8 ffffffff8282ac45 [ 24.146768] Call Trace: [ 24.146782] [<000000005f635303>] dump_stack+0xc1/0x120 [ 24.146793] [<00000000a913f44e>] dump_header.isra.0+0x142/0x74c [ 24.146802] [<00000000c90690b4>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 24.146811] [<000000000fa2032c>] ? ___ratelimit+0x55/0x413 [ 24.146819] [<000000003ab6f1e7>] oom_kill_process.cold+0xd/0xa74 [ 24.146829] [<00000000a6af9c0c>] ? has_capability_noaudit+0x25/0x30 [ 24.146838] [<0000000016e72056>] ? oom_badness.part.0+0x11d/0x600 [ 24.146844] [<00000000e2768775>] ? oom_badness.part.0+0x12f/0x600 [ 24.146854] [<0000000069c14684>] ? out_of_memory+0x6d3/0xea0 [ 24.146859] [<000000006595115d>] out_of_memory+0x29b/0xea0 [ 24.146865] [<0000000062748bce>] ? out_of_memory+0x41c/0xea0 [ 24.146870] [<00000000270b4c9f>] ? oom_killer_disable+0x210/0x210 [ 24.146878] [<00000000253aa0b3>] ? trace_hardirqs_on+0xd/0x10 [ 24.146883] [<00000000654a6f91>] ? __alloc_pages_nodemask+0x10d0/0x1a80 [ 24.146889] [<000000004800a95c>] __alloc_pages_nodemask+0x1730/0x1a80 [ 24.146902] [<0000000099d061e7>] ? __switch_to_asm+0x35/0x70 [ 24.146908] [<000000000a9cc6a5>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 24.146917] [<0000000029d926dc>] __vmalloc_node_range+0x25b/0x610 [ 24.146928] [<000000008bdc8367>] ? xt_alloc_table_info+0xc8/0x100 [ 24.146934] [<000000008cdc1f5c>] vmalloc+0x5c/0x70 [ 24.146941] [<000000008bdc8367>] ? xt_alloc_table_info+0xc8/0x100 [ 24.146948] [<000000008bdc8367>] xt_alloc_table_info+0xc8/0x100 [ 24.146955] [<0000000054902202>] do_replace.isra.0+0x111/0x480 [ 24.146962] [<0000000044364884>] ? compat_do_replace.isra.0+0x4e0/0x4e0 [ 24.146968] [<000000005d15177a>] ? __mutex_unlock_slowpath+0x25c/0x3e0 [ 24.146976] [<00000000b1e34968>] ? __cap_capable+0x182/0x1d0 [ 24.146983] [<000000003f8e39e5>] ? ns_capable_common+0x12c/0x160 [ 24.146990] [<000000006b7941ae>] do_arpt_set_ctl+0x108/0x150 [ 24.146998] [<00000000abfa8387>] nf_setsockopt+0x6d/0xc0 [ 24.147009] [<000000001e94b6a6>] ip_setsockopt+0x8a/0xa0 [ 24.147018] [<0000000012b71da5>] udp_setsockopt+0x4e/0x90 [ 24.147028] [<000000007f640252>] sock_common_setsockopt+0x9a/0xe0 [ 24.147035] [<00000000f12aad17>] SyS_setsockopt+0x159/0x240 [ 24.147041] [<000000002ebb6df0>] ? SyS_recv+0x40/0x40 [ 24.147049] [<00000000a9915a3e>] ? __do_page_fault+0x545/0xa60 [ 24.147056] [<00000000577bced2>] ? do_syscall_64+0x4a/0x5c0 [ 24.147062] [<000000002ebb6df0>] ? SyS_recv+0x40/0x40 [ 24.147068] [<00000000e4396e01>] do_syscall_64+0x1ad/0x5c0 [ 24.147075] [<000000000119dc97>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 24.147130] Mem-Info: [ 24.147145] active_anon:3606 inactive_anon:40 isolated_anon:0 [ 24.147145] active_file:22 inactive_file:42 isolated_file:0 [ 24.147145] unevictable:0 dirty:4 writeback:0 unstable:0 [ 24.147145] slab_reclaimable:4262 slab_unreclaimable:56646 [ 24.147145] mapped:52 shmem:48 pagetables:356 bounce:0 [ 24.147145] free:6055 free_pcp:30 free_cma:0 [ 24.147156] Node 0 active_anon:14424kB inactive_anon:160kB active_file:88kB inactive_file:168kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208kB dirty:16kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 24.147172] DMA32 free:18644kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 24.147195] Normal free:5576kB min:5580kB low:9168kB high:12756kB active_anon:14424kB inactive_anon:160kB active_file:88kB inactive_file:168kB unevictable:0kB writepending:16kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17048kB slab_unreclaimable:226584kB kernel_stack:3424kB pagetables:1424kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB executing program lowmem_reserve[]: 0 0 0 [ 24.147241] DMA32: 5*4kB (UM) 1*8kB (M) 2*16kB (M) 2*32kB (UM) 2*64kB (UM) 4*128kB (UM) 4*256kB (UM) 1*512kB (M) 2*1024kB (M) 1*2048kB (M) 3*4096kB (M) = 18684kB Normal: 371*4kB (UMH) 180*8kB (UMH) 73*16kB (UMH) 29*32kB (UM) 5*64kB (M) 0*128kB 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5596kB 122 total pagecache pages [ 24.147278] 0 pages in swap cache [ 24.147281] Swap cache stats: add 0, delete 0, find 0/0 [ 24.147283] Free swap = 0kB [ 24.147285] Total swap = 0kB [ 24.147287] 1965979 pages RAM [ 24.147288] 0 pages HighMem/MovableOnly [ 24.147290] 313627 pages reserved [ 24.147292] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 24.147307] [ 470] 0 470 5384 182 16 3 0 -1000 udevd [ 24.147316] [ 587] 0 587 5746 536 15 3 0 -1000 udevd [ 24.147324] [ 590] 0 590 5383 183 14 3 0 -1000 udevd [ 24.147332] [ 1763] 0 1763 2492 573 9 3 0 0 dhclient [ 24.147340] [ 1896] 0 1896 14231 109 23 3 0 0 rsyslogd [ 24.147348] [ 1951] 0 1951 4724 51 15 3 0 0 cron [ 24.147355] [ 1969] 0 1969 3735 44 11 3 0 0 mcstransd [ 24.147364] [ 1970] 0 1970 12926 1228 27 3 0 0 restorecond [ 24.147372] [ 1998] 0 1998 12489 160 27 3 0 -1000 sshd [ 24.147380] [ 2028] 0 2028 3648 40 13 3 0 0 getty [ 24.147388] [ 2041] 0 2041 3648 43 13 3 0 0 getty [ 24.147396] [ 2042] 0 2042 3648 43 13 3 0 0 getty [ 24.147403] [ 2043] 0 2043 3648 42 13 3 0 0 getty [ 24.147411] [ 2044] 0 2044 3648 42 13 3 0 0 getty [ 24.147419] [ 2045] 0 2045 3648 43 13 3 0 0 getty [ 24.147427] [ 2046] 0 2046 3648 41 13 3 0 0 getty [ 24.147434] [ 2047] 0 2047 17820 196 39 3 0 0 sshd [ 24.147442] [ 2049] 0 2049 4380 1 4 2 0 0 syz-executor545 [ 24.147450] [ 2050] 0 2050 4380 11 4 2 0 0 syz-executor545 [ 24.147457] [ 2051] 0 2051 4380 11 4 2 0 0 syz-executor545 [ 24.147465] [ 2052] 0 2052 4380 0 5 2 0 1000 syz-executor545 [ 24.147473] [ 2053] 0 2053 4380 11 4 2 0 0 syz-executor545 [ 24.147481] [ 2054] 0 2054 4380 11 4 2 0 0 syz-executor545 [ 24.147489] [ 2055] 0 2055 4380 11 4 2 0 0 syz-executor545 [ 24.147496] [ 2056] 0 2056 4380 11 4 2 0 0 syz-executor545 [ 24.147504] [ 2057] 0 2057 4380 11 5 2 0 1000 syz-executor545 [ 24.147512] [ 2058] 0 2058 4380 11 5 2 0 1000 syz-executor545 [ 24.147521] [ 2059] 0 2059 4380 11 5 2 0 1000 syz-executor545 [ 24.147529] [ 2060] 0 2060 4380 11 5 2 0 1000 syz-executor545 [ 24.147537] [ 2061] 0 2061 4380 11 5 2 0 1000 syz-executor545 [ 24.147542] Out of memory: Kill process 2057 (syz-executor545) score 999 or sacrifice child [ 24.147553] Killed process 2057 (syz-executor545) total-vm:17520kB, anon-rss:44kB, file-rss:0kB, shmem-rss:0kB [ 24.159117] oom_reaper: reaped process 2057 (syz-executor545), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 24.160198] syz-executor545 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 [ 24.160207] CPU: 1 PID: 2061 Comm: syz-executor545 Not tainted 4.9.194+ #0 [ 24.160225] ffff8801c529f6b0 ffffffff81b67001 ffff8801c529fa08 ffffffff833f1c30 executing program [ 24.160233] 00000000000003e8 ffff8801c529fa20 0000000000000000 ffff8801c529f730 [ 24.160242] ffffffff81506e44 0000000000000000 00000000000003e8 ffffffff8282ac45 [ 24.160243] Call Trace: [ 24.160258] [<000000005f635303>] dump_stack+0xc1/0x120 executing program [ 24.160268] [<00000000a913f44e>] dump_header.isra.0+0x142/0x74c [ 24.160277] [<00000000c90690b4>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 24.160285] [<000000000fa2032c>] ? ___ratelimit+0x55/0x413 [ 24.160292] [<000000003ab6f1e7>] oom_kill_process.cold+0xd/0xa74 [ 24.160301] [<00000000a6af9c0c>] ? has_capability_noaudit+0x25/0x30 executing program [ 24.160309] [<0000000016e72056>] ? oom_badness.part.0+0x11d/0x600 [ 24.160316] [<00000000e2768775>] ? oom_badness.part.0+0x12f/0x600 [ 24.160323] [<0000000069c14684>] ? out_of_memory+0x6d3/0xea0 [ 24.160329] [<000000006595115d>] out_of_memory+0x29b/0xea0 [ 24.160335] [<0000000062748bce>] ? out_of_memory+0x41c/0xea0 [ 24.160341] [<00000000270b4c9f>] ? oom_killer_disable+0x210/0x210 [ 24.160348] [<00000000253aa0b3>] ? trace_hardirqs_on+0xd/0x10 [ 24.160354] [<00000000654a6f91>] ? __alloc_pages_nodemask+0x10d0/0x1a80 [ 24.160360] [<000000004800a95c>] __alloc_pages_nodemask+0x1730/0x1a80 [ 24.160366] [<0000000099d061e7>] ? __switch_to_asm+0x35/0x70 [ 24.160373] [<000000000a9cc6a5>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 24.160386] [<0000000029d926dc>] __vmalloc_node_range+0x25b/0x610 [ 24.160395] [<000000008bdc8367>] ? xt_alloc_table_info+0xc8/0x100 [ 24.160401] [<000000008cdc1f5c>] vmalloc+0x5c/0x70 [ 24.160408] [<000000008bdc8367>] ? xt_alloc_table_info+0xc8/0x100 [ 24.160415] [<000000008bdc8367>] xt_alloc_table_info+0xc8/0x100 [ 24.160423] [<0000000054902202>] do_replace.isra.0+0x111/0x480 [ 24.160429] [<0000000044364884>] ? compat_do_replace.isra.0+0x4e0/0x4e0 [ 24.160436] [<000000005d15177a>] ? __mutex_unlock_slowpath+0x25c/0x3e0 [ 24.160444] [<00000000b1e34968>] ? __cap_capable+0x182/0x1d0 [ 24.160452] [<000000003f8e39e5>] ? ns_capable_common+0x12c/0x160 [ 24.160459] [<000000006b7941ae>] do_arpt_set_ctl+0x108/0x150 [ 24.160468] [<00000000abfa8387>] nf_setsockopt+0x6d/0xc0 [ 24.160475] [<000000001e94b6a6>] ip_setsockopt+0x8a/0xa0 [ 24.160484] [<0000000012b71da5>] udp_setsockopt+0x4e/0x90 [ 24.160494] [<000000007f640252>] sock_common_setsockopt+0x9a/0xe0 [ 24.160501] [<00000000f12aad17>] SyS_setsockopt+0x159/0x240 [ 24.160509] [<000000002ebb6df0>] ? SyS_recv+0x40/0x40 [ 24.160517] [<00000000a9915a3e>] ? __do_page_fault+0x545/0xa60 [ 24.160525] [<00000000577bced2>] ? do_syscall_64+0x4a/0x5c0 [ 24.160532] [<000000002ebb6df0>] ? SyS_recv+0x40/0x40 [ 24.160538] [<00000000e4396e01>] do_syscall_64+0x1ad/0x5c0 [ 24.160546] [<000000000119dc97>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 24.160599] Mem-Info: [ 24.160617] active_anon:3607 inactive_anon:40 isolated_anon:0 [ 24.160617] active_file:8 inactive_file:42 isolated_file:0 [ 24.160617] unevictable:0 dirty:0 writeback:0 unstable:0 [ 24.160617] slab_reclaimable:4264 slab_unreclaimable:56652 [ 24.160617] mapped:30 shmem:48 pagetables:356 bounce:0 [ 24.160617] free:6034 free_pcp:68 free_cma:0 [ 24.160630] Node 0 active_anon:14428kB inactive_anon:160kB active_file:32kB inactive_file:168kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:120kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:21 all_unreclaimable? no [ 24.160648] DMA32 free:18664kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:16kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 24.160677] Normal free:5472kB min:5580kB low:9168kB high:12756kB active_anon:14428kB inactive_anon:160kB active_file:32kB inactive_file:168kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17056kB slab_unreclaimable:226592kB kernel_stack:3424kB pagetables:1424kB bounce:0kB free_pcp:272kB local_pcp:152kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 24.160748] DMA32: 5*4kB (UM) 1*8kB (M) 2*16kB (M) 2*32kB (UM) 2*64kB (UM) 4*128kB (UM) 4*256kB (UM) 1*512kB (M) 2*1024kB (M) 1*2048kB (M) 3*4096kB (M) = 18684kB Normal: 340*4kB (UMH) 180*8kB (UMH) 73*16kB (UMH) 29*32kB (UM) 5*64kB (M) 0*128kB 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5472kB 110 total pagecache pages [ 24.160790] 0 pages in swap cache [ 24.160793] Swap cache stats: add 0, delete 0, find 0/0 [ 24.160795] Free swap = 0kB [ 24.160797] Total swap = 0kB [ 24.160799] 1965979 pages RAM [ 24.160801] 0 pages HighMem/MovableOnly [ 24.160803] 313627 pages reserved [ 24.160806] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 24.160819] [ 470] 0 470 5384 182 16 3 0 -1000 udevd [ 24.160827] [ 587] 0 587 5746 536 15 3 0 -1000 udevd [ 24.160833] [ 590] 0 590 5383 183 14 3 0 -1000 udevd [ 24.160839] [ 1763] 0 1763 2492 573 9 3 0 0 dhclient [ 24.160845] [ 1896] 0 1896 14231 109 23 3 0 0 rsyslogd [ 24.160852] [ 1951] 0 1951 4724 51 15 3 0 0 cron [ 24.160858] [ 1969] 0 1969 3735 44 11 3 0 0 mcstransd [ 24.160864] [ 1970] 0 1970 12926 1228 27 3 0 0 restorecond [ 24.160870] [ 1998] 0 1998 12489 160 27 3 0 -1000 sshd [ 24.160876] [ 2028] 0 2028 3648 40 13 3 0 0 getty [ 24.160882] [ 2041] 0 2041 3648 43 13 3 0 0 getty [ 24.160888] [ 2042] 0 2042 3648 43 13 3 0 0 getty [ 24.160894] [ 2043] 0 2043 3648 42 13 3 0 0 getty [ 24.160899] [ 2044] 0 2044 3648 42 13 3 0 0 getty [ 24.160905] [ 2045] 0 2045 3648 43 13 3 0 0 getty [ 24.160911] [ 2046] 0 2046 3648 41 13 3 0 0 getty [ 24.160917] [ 2047] 0 2047 17820 196 39 3 0 0 sshd [ 24.160923] [ 2049] 0 2049 4380 1 4 2 0 0 syz-executor545 [ 24.160929] [ 2050] 0 2050 4380 11 4 2 0 0 syz-executor545 [ 24.160935] [ 2051] 0 2051 4380 11 4 2 0 0 syz-executor545 [ 24.160941] [ 2052] 0 2052 4380 0 5 2 0 1000 syz-executor545 [ 24.160950] [ 2053] 0 2053 4380 11 4 2 0 0 syz-executor545 [ 24.160959] [ 2054] 0 2054 4380 11 4 2 0 0 syz-executor545 [ 24.160967] [ 2055] 0 2055 4380 11 4 2 0 0 syz-executor545 [ 24.160976] [ 2056] 0 2056 4380 11 4 2 0 0 syz-executor545 [ 24.160985] [ 2057] 0 2057 4380 0 5 2 0 1000 syz-executor545 [ 24.160994] [ 2058] 0 2058 4380 11 5 2 0 1000 syz-executor545 [ 24.161003] [ 2059] 0 2059 4380 11 5 2 0 1000 syz-executor545 [ 24.161011] [ 2060] 0 2060 4380 11 5 2 0 1000 syz-executor545 [ 24.161020] [ 2061] 0 2061 4380 11 5 2 0 1000 syz-executor545 [ 24.161025] Out of memory: Kill process 2058 (syz-executor545) score 999 or sacrifice child [ 24.161037] Killed process 2058 (syz-executor545) total-vm:17520kB, anon-rss:44kB, file-rss:0kB, shmem-rss:0kB [ 24.189082] oom_reaper: reaped process 2058 (syz-executor545), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 24.190239] syz-executor545 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 [ 24.190247] CPU: 1 PID: 2061 Comm: syz-executor545 Not tainted 4.9.194+ #0 [ 24.190261] ffff8801c529f6b0 ffffffff81b67001 ffff8801c529fa08 ffffffff833f1c30 [ 24.190271] 00000000000003e8 ffff8801c529fa20 0000000000000000 ffff8801c529f730 [ 24.190280] ffffffff81506e44 0000000000000000 00000000000003e8 ffffffff8282ac45 [ 24.190282] Call Trace: executing program executing program [ 24.190297] [<000000005f635303>] dump_stack+0xc1/0x120 [ 24.190308] [<00000000a913f44e>] dump_header.isra.0+0x142/0x74c [ 24.190317] [<00000000c90690b4>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 24.190328] [<000000000fa2032c>] ? ___ratelimit+0x55/0x413 [ 24.190334] [<000000003ab6f1e7>] oom_kill_process.cold+0xd/0xa74 [ 24.190343] [<00000000a6af9c0c>] ? has_capability_noaudit+0x25/0x30 [ 24.190352] [<0000000016e72056>] ? oom_badness.part.0+0x11d/0x600 [ 24.190358] [<00000000e2768775>] ? oom_badness.part.0+0x12f/0x600 executing program [ 24.190364] [<0000000069c14684>] ? out_of_memory+0x6d3/0xea0 [ 24.190370] [<000000006595115d>] out_of_memory+0x29b/0xea0 [ 24.190376] [<0000000062748bce>] ? out_of_memory+0x41c/0xea0 [ 24.190383] [<00000000270b4c9f>] ? oom_killer_disable+0x210/0x210 [ 24.190391] [<00000000253aa0b3>] ? trace_hardirqs_on+0xd/0x10 [ 24.190398] [<00000000654a6f91>] ? __alloc_pages_nodemask+0x10d0/0x1a80 [ 24.190404] [<000000004800a95c>] __alloc_pages_nodemask+0x1730/0x1a80 [ 24.190410] [<0000000099d061e7>] ? __switch_to_asm+0x35/0x70 [ 24.190418] [<000000000a9cc6a5>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 24.190427] [<0000000029d926dc>] __vmalloc_node_range+0x25b/0x610 [ 24.190437] [<000000008bdc8367>] ? xt_alloc_table_info+0xc8/0x100 [ 24.190443] [<000000008cdc1f5c>] vmalloc+0x5c/0x70 [ 24.190450] [<000000008bdc8367>] ? xt_alloc_table_info+0xc8/0x100 [ 24.190457] [<000000008bdc8367>] xt_alloc_table_info+0xc8/0x100 [ 24.190465] [<0000000054902202>] do_replace.isra.0+0x111/0x480 [ 24.190471] [<0000000044364884>] ? compat_do_replace.isra.0+0x4e0/0x4e0 [ 24.190477] [<000000005d15177a>] ? __mutex_unlock_slowpath+0x25c/0x3e0 [ 24.190485] [<00000000b1e34968>] ? __cap_capable+0x182/0x1d0 [ 24.190493] [<000000003f8e39e5>] ? ns_capable_common+0x12c/0x160 [ 24.190499] [<000000006b7941ae>] do_arpt_set_ctl+0x108/0x150 [ 24.190507] [<00000000abfa8387>] nf_setsockopt+0x6d/0xc0 [ 24.190514] [<000000001e94b6a6>] ip_setsockopt+0x8a/0xa0 [ 24.190521] [<0000000012b71da5>] udp_setsockopt+0x4e/0x90 [ 24.190529] [<000000007f640252>] sock_common_setsockopt+0x9a/0xe0 [ 24.190536] [<00000000f12aad17>] SyS_setsockopt+0x159/0x240 [ 24.190543] [<000000002ebb6df0>] ? SyS_recv+0x40/0x40 [ 24.190556] [<00000000a9915a3e>] ? __do_page_fault+0x545/0xa60 [ 24.190563] [<00000000577bced2>] ? do_syscall_64+0x4a/0x5c0 [ 24.190570] [<000000002ebb6df0>] ? SyS_recv+0x40/0x40 [ 24.190575] [<00000000e4396e01>] do_syscall_64+0x1ad/0x5c0 [ 24.190583] [<000000000119dc97>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 24.190586] Mem-Info: [ 24.190601] active_anon:3609 inactive_anon:40 isolated_anon:0 [ 24.190601] active_file:8 inactive_file:31 isolated_file:0 [ 24.190601] unevictable:0 dirty:0 writeback:0 unstable:0 [ 24.190601] slab_reclaimable:4264 slab_unreclaimable:56657 [ 24.190601] mapped:14 shmem:48 pagetables:356 bounce:0 [ 24.190601] free:6039 free_pcp:76 free_cma:0 [ 24.190613] Node 0 active_anon:14436kB inactive_anon:160kB active_file:32kB inactive_file:124kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:56kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:21 all_unreclaimable? no [ 24.190629] DMA32 free:18684kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:16kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 24.190653] Normal free:5472kB min:5580kB low:9168kB high:12756kB active_anon:14436kB inactive_anon:160kB active_file:32kB inactive_file:124kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17056kB slab_unreclaimable:226612kB kernel_stack:3424kB pagetables:1424kB bounce:0kB free_pcp:304kB local_pcp:184kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 24.190700] DMA32: 5*4kB (UM) 1*8kB (M) 2*16kB (M) 2*32kB (UM) 2*64kB (UM) 4*128kB (UM) 4*256kB (UM) 1*512kB (M) 2*1024kB (M) 1*2048kB (M) 3*4096kB (M) = 18684kB Normal: 340*4kB (UMH) 180*8kB (UMH) 73*16kB (UMH) 29*32kB (UM) 5*64kB (M) 0*128kB 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5472kB 87 total pagecache pages [ 24.190738] 0 pages in swap cache [ 24.190742] Swap cache stats: add 0, delete 0, find 0/0 [ 24.190744] Free swap = 0kB [ 24.190746] Total swap = 0kB [ 24.190748] 1965979 pages RAM [ 24.190750] 0 pages HighMem/MovableOnly [ 24.190751] 313627 pages reserved [ 24.190754] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 24.190766] [ 470] 0 470 5384 182 16 3 0 -1000 udevd [ 24.190774] [ 587] 0 587 5746 536 15 3 0 -1000 udevd [ 24.190782] [ 590] 0 590 5383 183 14 3 0 -1000 udevd [ 24.190790] [ 1763] 0 1763 2492 573 9 3 0 0 dhclient executing program [ 24.190798] [ 1896] 0 1896 14231 109 23 3 0 0 rsyslogd [ 24.190806] [ 1951] 0 1951 4724 51 15 3 0 0 cron [ 24.190814] [ 1969] 0 1969 3735 44 11 3 0 0 mcstransd [ 24.190822] [ 1970] 0 1970 12926 1228 27 3 0 0 restorecond [ 24.190829] [ 1998] 0 1998 12489 160 27 3 0 -1000 sshd [ 24.190837] [ 2028] 0 2028 3648 40 13 3 0 0 getty [ 24.190845] [ 2041] 0 2041 3648 43 13 3 0 0 getty [ 24.190853] [ 2042] 0 2042 3648 43 13 3 0 0 getty [ 24.190861] [ 2043] 0 2043 3648 42 13 3 0 0 getty [ 24.190868] [ 2044] 0 2044 3648 42 13 3 0 0 getty [ 24.190876] [ 2045] 0 2045 3648 43 13 3 0 0 getty [ 24.190884] [ 2046] 0 2046 3648 41 13 3 0 0 getty [ 24.190892] [ 2047] 0 2047 17820 196 39 3 0 0 sshd [ 24.190900] [ 2049] 0 2049 4380 1 4 2 0 0 syz-executor545 [ 24.190908] [ 2050] 0 2050 4380 11 4 2 0 0 syz-executor545 [ 24.190916] [ 2051] 0 2051 4380 11 4 2 0 0 syz-executor545 [ 24.190924] [ 2052] 0 2052 4380 0 5 2 0 1000 syz-executor545 [ 24.190932] [ 2053] 0 2053 4380 11 4 2 0 0 syz-executor545 [ 24.190940] [ 2054] 0 2054 4380 11 4 2 0 0 syz-executor545 [ 24.190948] [ 2055] 0 2055 4380 11 4 2 0 0 syz-executor545 [ 24.190956] [ 2056] 0 2056 4380 11 4 2 0 0 syz-executor545 [ 24.190964] [ 2057] 0 2057 4380 0 5 2 0 1000 syz-executor545 ** 80 printk messages dropped ** [ 24.211006] [ 2042] 0 2042 3648 43 13 3 0 0 getty ** 2 printk messages dropped ** [ 24.211030] [ 2045] 0 2045 3648 43 13 3 0 0 getty executing program ** 220 printk messages dropped ** [ 24.249527] [<00000000b1e34968>] ? __cap_capable+0x182/0x1d0 [ 24.249533] (H) [<000000003f8e39e5>] ? ns_capable_common+0x12c/0x160 [ 24.249540] 0*512kB [<000000006b7941ae>] do_arpt_set_ctl+0x108/0x150 [ 24.249546] 0*1024kB [<00000000abfa8387>] nf_setsockopt+0x6d/0xc0 [ 24.249552] 0*2048kB [<000000001e94b6a6>] ip_setsockopt+0x8a/0xa0 [ 24.249559] 0*4096kB [<0000000012b71da5>] udp_setsockopt+0x4e/0x90 [ 24.249560] = 552kB [<000000007f640252>] sock_common_setsockopt+0x9a/0xe0 [ 24.249567] 87 total pagecache pages [ 24.249572] [<00000000f12aad17>] SyS_setsockopt+0x159/0x240 [ 24.249573] 0 pages in swap cache [ 24.249582] [<000000002ebb6df0>] ? SyS_recv+0x40/0x40 [ 24.249585] Swap cache stats: add 0, delete 0, find 0/0 [ 24.249589] [<00000000a9915a3e>] ? __do_page_fault+0x545/0xa60 [ 24.249591] Free swap = 0kB [ 24.249595] [<00000000577bced2>] ? do_syscall_64+0x4a/0x5c0 [ 24.249596] Total swap = 0kB executing program [ 24.249600] [<000000002ebb6df0>] ? SyS_recv+0x40/0x40 [ 24.249602] 1965979 pages RAM [ 24.249606] [<00000000e4396e01>] do_syscall_64+0x1ad/0x5c0 [ 24.249607] 0 pages HighMem/MovableOnly [ 24.249612] [<000000000119dc97>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 24.249613] 313627 pages reserved [ 24.249614] Mem-Info: [ 24.249628] active_anon:3585 inactive_anon:40 isolated_anon:0 [ 24.249628] active_file:8 inactive_file:31 isolated_file:0 [ 24.249628] unevictable:0 dirty:0 writeback:0 unstable:0 [ 24.249628] slab_reclaimable:4264 slab_unreclaimable:56657 [ 24.249628] mapped:14 shmem:48 pagetables:356 bounce:0 [ 24.249628] free:175 free_pcp:0 free_cma:0 [ 24.249639] Node 0 active_anon:14340kB inactive_anon:160kB active_file:32kB inactive_file:124kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:56kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 24.249655] DMA32 free:84kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:16kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 24.249678] Normal free:616kB min:5580kB low:9168kB high:12756kB active_anon:14340kB inactive_anon:160kB active_file:32kB inactive_file:124kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17056kB slab_unreclaimable:226612kB kernel_stack:3424kB pagetables:1424kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 24.249711] 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: 22*4kB (MH) 10*8kB (MH) 8*16kB (H) 0*32kB 0*64kB 0*128kB 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 552kB 87 total pagecache pages [ 24.249745] 0 pages in swap cache [ 24.249749] Swap cache stats: add 0, delete 0, find 0/0 [ 24.249751] Free swap = 0kB [ 24.249753] Total swap = 0kB [ 24.249754] 1965979 pages RAM [ 24.249756] 0 pages HighMem/MovableOnly [ 24.249758] 313627 pages reserved [ 24.249760] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 24.249777] [ 470] 0 470 5384 182 16 3 0 -1000 udevd [ 24.249786] [ 587] 0 587 5746 536 15 3 0 -1000 udevd executing program [ 24.249794] [ 590] 0 590 5383 183 14 3 0 -1000 udevd [ 24.249803] [ 1763] 0 1763 2492 573 9 3 0 0 dhclient [ 24.249811] [ 1896] 0 1896 14231 109 23 3 0 0 rsyslogd [ 24.249820] [ 1951] 0 1951 4724 51 15 3 0 0 cron executing program [ 24.249828] [ 1969] 0 1969 3735 44 11 3 0 0 mcstransd [ 24.249836] [ 1970] 0 1970 12926 1228 27 3 0 0 restorecond [ 24.249846] [ 1998] 0 1998 12489 160 27 3 0 -1000 sshd [ 24.249854] [ 2028] 0 2028 3648 40 13 3 0 0 getty [ 24.249862] [ 2041] 0 2041 3648 43 13 3 0 0 getty [ 24.249871] [ 2042] 0 2042 3648 43 13 3 0 0 getty [ 24.249879] [ 2043] 0 2043 3648 42 13 3 0 0 getty [ 24.249888] [ 2044] 0 2044 3648 42 13 3 0 0 getty [ 24.249896] [ 2045] 0 2045 3648 43 13 3 0 0 getty [ 24.249904] [ 2046] 0 2046 3648 41 13 3 0 0 getty [ 24.249912] [ 2047] 0 2047 17820 196 39 3 0 0 sshd [ 24.249921] [ 2049] 0 2049 4380 1 4 2 0 0 syz-executor545 [ 24.249929] [ 2050] 0 2050 4380 11 4 2 0 0 syz-executor545 [ 24.249938] [ 2051] 0 2051 4380 11 4 2 0 0 syz-executor545 [ 24.249947] [ 2052] 0 2052 4380 0 5 2 0 1000 syz-executor545 [ 24.249955] [ 2053] 0 2053 4380 11 4 2 0 0 syz-executor545 [ 24.249964] [ 2054] 0 2054 4380 11 4 2 0 0 syz-executor545 [ 24.249972] [ 2055] 0 2055 4380 11 4 2 0 0 syz-executor545 [ 24.249980] [ 2056] 0 2056 4380 11 4 2 0 0 syz-executor545 [ 24.249990] [ 2057] 0 2057 4380 0 5 2 0 1000 syz-executor545 [ 24.249998] [ 2058] 0 2058 4380 0 5 2 0 1000 syz-executor545 [ 24.250007] [ 2059] 0 2059 4380 0 5 2 0 1000 syz-executor545 [ 24.250016] [ 2060] 0 2060 4380 0 5 2 0 1000 syz-executor545 [ 24.250025] [ 2061] 0 2061 4380 11 5 2 0 1000 syz-executor545 [ 24.250030] Out of memory: Kill process 2061 (syz-executor545) score 999 or sacrifice child [ 24.250046] Killed process 2061 (syz-executor545) total-vm:17520kB, anon-rss:44kB, file-rss:0kB, shmem-rss:0kB [ 24.250426] syz-executor545: vmalloc: allocation failure, allocated 844283904 of 4294975488 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) ** 127 printk messages dropped ** [ 24.271702] Mem-Info: [ 24.271719] active_anon:3577 inactive_anon:40 isolated_anon:0 [ 24.271719] active_file:8 inactive_file:31 isolated_file:0 [ 24.271719] unevictable:0 dirty:0 writeback:0 unstable:0 [ 24.271719] slab_reclaimable:4264 slab_unreclaimable:56657 [ 24.271719] mapped:14 shmem:48 pagetables:356 bounce:0 [ 24.271719] free:159 free_pcp:4 free_cma:0 [ 24.271731] Node 0 active_anon:14308kB inactive_anon:160kB active_file:32kB inactive_file:124kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:56kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 24.271748] DMA32 free:84kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:16kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 24.271773] Normal free:552kB min:5580kB low:9168kB high:12756kB active_anon:14308kB inactive_anon:160kB active_file:32kB inactive_file:124kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17056kB slab_unreclaimable:226612kB kernel_stack:3424kB pagetables:1424kB bounce:0kB free_pcp:16kB local_pcp:16kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 24.271806] 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: 18*4kB (H) 9*8kB (H) 8*16kB (H) 0*32kB 0*64kB 0*128kB 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 528kB 87 total pagecache pages [ 24.271844] 0 pages in swap cache [ 24.271847] Swap cache stats: add 0, delete 0, find 0/0 [ 24.271849] Free swap = 0kB [ 24.271851] Total swap = 0kB [ 24.271853] 1965979 pages RAM [ 24.271855] 0 pages HighMem/MovableOnly [ 24.271857] 313627 pages reserved [ 24.971377] ODEBUG: Out of memory. ODEBUG disabled [ 26.433788] lowmemorykiller: Killing 'syz-executor545' (2063) (tgid 2063), adj 1000, [ 26.433788] to free 44kB on behalf of 'syz-executor545' (2063) because [ 26.433788] cache 2540kB is below limit 6144kB for oom_score_adj 0 [ 26.433788] Free memory is -13364kB above reserved [ 26.469108] oom_reaper: reaped process 2063 (syz-executor545), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 26.470350] syz-executor545 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 [ 26.470357] CPU: 1 PID: 2066 Comm: syz-executor545 Not tainted 4.9.194+ #0 [ 26.470371] ffff88018795f6b0 ffffffff81b67001 ffff88018795fa08 ffffffff833f1c30 [ 26.470380] 00000000000003e8 ffff88018795fa20 0000000000000000 ffff88018795f730 [ 26.470388] ffffffff81506e44 0000000000000000 00000000000003e8 ffffffff8282ac45 [ 26.470390] Call Trace: [ 26.470405] [<000000005f635303>] dump_stack+0xc1/0x120 [ 26.470415] [<00000000a913f44e>] dump_header.isra.0+0x142/0x74c [ 26.470426] [<00000000c90690b4>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 26.470434] [<000000000fa2032c>] ? ___ratelimit+0x55/0x413 [ 26.470441] [<000000003ab6f1e7>] oom_kill_process.cold+0xd/0xa74 [ 26.470451] [<00000000a6af9c0c>] ? has_capability_noaudit+0x25/0x30 [ 26.470460] [<0000000016e72056>] ? oom_badness.part.0+0x11d/0x600 [ 26.470467] [<00000000e2768775>] ? oom_badness.part.0+0x12f/0x600 [ 26.470473] [<0000000069c14684>] ? out_of_memory+0x6d3/0xea0 [ 26.470480] [<000000006595115d>] out_of_memory+0x29b/0xea0 [ 26.470487] [<0000000062748bce>] ? out_of_memory+0x41c/0xea0 [ 26.470494] [<00000000270b4c9f>] ? oom_killer_disable+0x210/0x210 [ 26.470501] [<00000000253aa0b3>] ? trace_hardirqs_on+0xd/0x10 [ 26.470508] [<00000000654a6f91>] ? __alloc_pages_nodemask+0x10d0/0x1a80 [ 26.470514] [<000000004800a95c>] __alloc_pages_nodemask+0x1730/0x1a80 [ 26.470521] [<0000000099d061e7>] ? __switch_to_asm+0x35/0x70 [ 26.470528] [<000000000a9cc6a5>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 26.470537] [<0000000029d926dc>] __vmalloc_node_range+0x25b/0x610 [ 26.470545] [<000000008bdc8367>] ? xt_alloc_table_info+0xc8/0x100 [ 26.470552] [<000000008cdc1f5c>] vmalloc+0x5c/0x70 [ 26.470559] [<000000008bdc8367>] ? xt_alloc_table_info+0xc8/0x100 [ 26.470566] [<000000008bdc8367>] xt_alloc_table_info+0xc8/0x100 [ 26.470573] [<0000000054902202>] do_replace.isra.0+0x111/0x480 [ 26.470580] [<0000000044364884>] ? compat_do_replace.isra.0+0x4e0/0x4e0 [ 26.470586] [<000000007abda4be>] ? mutex_unlock+0x9/0x10 [ 26.470593] [<00000000b1e34968>] ? __cap_capable+0x182/0x1d0 [ 26.470600] [<000000003f8e39e5>] ? ns_capable_common+0x12c/0x160 [ 26.470607] [<000000006b7941ae>] do_arpt_set_ctl+0x108/0x150 [ 26.470615] [<00000000abfa8387>] nf_setsockopt+0x6d/0xc0 [ 26.470621] [<000000001e94b6a6>] ip_setsockopt+0x8a/0xa0 [ 26.470629] [<0000000012b71da5>] udp_setsockopt+0x4e/0x90 [ 26.470637] [<000000007f640252>] sock_common_setsockopt+0x9a/0xe0 [ 26.470644] [<00000000f12aad17>] SyS_setsockopt+0x159/0x240 [ 26.470651] [<000000002ebb6df0>] ? SyS_recv+0x40/0x40 [ 26.470657] [<00000000a9915a3e>] ? __do_page_fault+0x545/0xa60 [ 26.470664] [<00000000a5265258>] ? bad_area_access_error+0x3d0/0x3d0 [ 26.470670] [<000000002ebb6df0>] ? SyS_recv+0x40/0x40 [ 26.470677] [<00000000e4396e01>] do_syscall_64+0x1ad/0x5c0 [ 26.470684] [<000000000119dc97>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 26.470687] Mem-Info: [ 26.470702] active_anon:3617 inactive_anon:40 isolated_anon:0 [ 26.470702] active_file:23 inactive_file:25 isolated_file:0 [ 26.470702] unevictable:0 dirty:0 writeback:0 unstable:0