[....] Starting enhanced syslogd: rsyslogd[ 11.393584] audit: type=1400 audit(1564151217.680:4): avc: denied { syslog } for pid=1914 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.139' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 45.784074] lowmemorykiller: Killing 'syz-executor633' (2081) (tgid 2081), adj 1000, [ 45.784074] to free 44kB on behalf of 'kswapd0' (33) because [ 45.784074] cache 36516kB is below limit 65536kB for oom_score_adj 12 [ 45.784074] Free memory is -13168kB above reserved [ 45.798137] lowmemorykiller: Killing 'syz-executor633' (2081) (tgid 2081), adj 1000, [ 45.798137] to free 44kB on behalf of 'syz-executor633' (2090) because [ 45.798137] cache 34016kB is below limit 65536kB for oom_score_adj 12 [ 45.798137] Free memory is -13336kB above reserved [ 45.798145] BUG: sleeping function called from invalid context at kernel/fork.c:903 [ 45.798150] in_atomic(): 0, irqs_disabled(): 0, pid: 2090, name: syz-executor633 [ 45.798155] 2 locks held by syz-executor633/2090: [ 45.798181] #0: (shrinker_rwsem){++++..}, at: [<000000009517590e>] shrink_slab.part.0+0xb2/0xa20 [ 45.798197] #1: (rcu_read_lock){......}, at: [<00000000a9ec9162>] lowmem_scan+0x242/0xb50 [ 45.798208] Preemption disabled at: [ 45.798209] [<0000000079c5e4f7>] get_task_mm+0x20/0xc0 [ 45.798218] CPU: 1 PID: 2090 Comm: syz-executor633 Not tainted 4.9.186+ #10 [ 45.798232] ffff8801c48a7408 ffffffff81b5a0b1 0000000000000000 0000000000000001 [ 45.798243] ffff8801cf45df00 ffffffff810d0cc0 ffff8801cf45df00 ffff8801c48a7440 [ 45.798253] ffffffff8140032c ffff8801cf45df00 ffffffff82a39940 0000000000000387 [ 45.798256] Call Trace: [ 45.798266] [<0000000020714e7f>] dump_stack+0xc1/0x120 [ 45.798274] [<0000000079c5e4f7>] ? get_task_mm+0x20/0xc0 [ 45.798282] [<00000000517388f7>] ___might_sleep.cold+0x1c1/0x1fa [ 45.798292] [<000000002f090882>] __might_sleep+0x95/0x1a0 [ 45.798299] [<00000000c3acdd5d>] mmput+0x28/0x370 [ 45.798307] [<0000000083c11fa7>] handle_lmk_event+0xea/0x8a0 [ 45.798315] [<000000008cf6215b>] lowmem_scan+0x695/0xb50 [ 45.798324] [<00000000c6526f18>] shrink_slab.part.0+0x3cf/0xa20 [ 45.798332] [<0000000024dbec87>] ? unregister_shrinker+0x230/0x230 [ 45.798341] [<0000000004eef072>] shrink_node+0x1ed/0x750 [ 45.798351] [<00000000fb500730>] ? shrink_node_memcg.isra.0+0x1360/0x1360 [ 45.798361] [<00000000c04f80fc>] ? __delayacct_freepages_start+0x41/0x80 [ 45.798370] [<00000000b38497cc>] try_to_free_pages+0x397/0xbd0 [ 45.798378] [<0000000070d35002>] ? shrink_node+0x750/0x750 [ 45.798386] [<000000008c115c07>] __alloc_pages_nodemask+0x930/0x1a80 [ 45.798396] [<0000000095bb437d>] ? __schedule+0x6d6/0x1f10 [ 45.798405] [<00000000f8eeea05>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 45.798415] [<00000000b2b1f096>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 45.798425] [<000000003beade3d>] __vmalloc_node_range+0x25b/0x610 [ 45.798435] [<00000000f747132c>] ? xt_alloc_table_info+0xc8/0x100 [ 45.798442] [<000000008759161e>] vmalloc+0x5c/0x70 [ 45.798461] [<00000000f747132c>] ? xt_alloc_table_info+0xc8/0x100 [ 45.798469] [<00000000f747132c>] xt_alloc_table_info+0xc8/0x100 [ 45.798478] [<00000000af58573d>] do_ip6t_set_ctl+0x231/0x480 [ 45.798487] [<0000000028abdc71>] ? compat_do_ip6t_set_ctl+0x150/0x150 [ 45.798496] [<00000000b7ec8159>] ? mutex_unlock+0x9/0x10 [ 45.798506] [<000000009997dff2>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 45.798514] [<00000000257806fe>] nf_setsockopt+0x6d/0xc0 [ 45.798522] [<000000006d71d5c4>] ipv6_setsockopt+0x10b/0x140 [ 45.798531] [<00000000cf15e697>] tcp_setsockopt+0x8a/0xe0 [ 45.798541] [<00000000d35112b2>] sock_common_setsockopt+0x9a/0xe0 [ 45.798549] [<0000000077a918d0>] SyS_setsockopt+0x159/0x240 [ 45.798557] [<00000000f1320c39>] ? SyS_recv+0x40/0x40 [ 45.798567] [<00000000ed45218f>] ? __do_page_fault+0x545/0xa60 [ 45.798574] [<000000004fdd303b>] ? do_syscall_64+0x4a/0x5c0 [ 45.798581] [<00000000f1320c39>] ? SyS_recv+0x40/0x40 [ 45.798587] [<0000000081e028f0>] do_syscall_64+0x1ad/0x5c0 [ 45.798596] [<00000000a1b3a343>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 45.798690] [ 45.798692] ================================= [ 45.798693] [ INFO: inconsistent lock state ] [ 45.798698] 4.9.186+ #10 Tainted: G W [ 45.798700] --------------------------------- [ 45.798703] inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-R} usage. [ 45.798710] syz-executor633/2090 [HC0[0]:SC0[0]:HE1:SE1] takes: [ 45.798722] (&mm->mmap_sem){+++++?}, at: [<00000000e5ca552d>] get_cmdline+0xa3/0x2d0 {RECLAIM_FS-ON-W} state was registered at: [ 45.798731] mark_held_locks+0xb1/0x100 [ 45.798738] lockdep_trace_alloc+0x18c/0x2b0 [ 45.798743] __alloc_pages_nodemask+0x143/0x1a80 [ 45.798750] __pmd_alloc+0x4a/0x330 [ 45.798757] move_page_tables+0xadb/0xd60 [ 45.798762] shift_arg_pages+0x1ae/0x470 [ 45.798768] setup_arg_pages+0x60d/0x7c0 [ 45.798783] load_elf_binary+0xa84/0x4a90 [ 45.798790] search_binary_handler+0x14f/0x700 [ 45.798795] do_execveat_common.isra.0+0xf81/0x1db0 [ 45.798799] do_execve+0x3a/0x50 [ 45.798807] run_init_process+0x33/0x37 [ 45.798814] try_to_run_init_process+0x18/0x48 [ 45.798820] kernel_init+0xf2/0x163 [ 45.798826] ret_from_fork+0x5c/0x70 [ 45.798829] irq event stamp: 498851 [ 45.798837] hardirqs last enabled at (498851): [<00000000562e92ff>] dump_stack+0x100/0x120 [ 45.798844] hardirqs last disabled at (498850): [<0000000096465388>] dump_stack+0x2c/0x120 [ 45.798853] softirqs last enabled at (426756): [<00000000a455d358>] __do_softirq+0x474/0x964 [ 45.798860] softirqs last disabled at (426749): [<000000000819a2db>] irq_exit+0x119/0x160 [ 45.798862] [ 45.798862] other info that might help us debug this: [ 45.798864] Possible unsafe locking scenario: [ 45.798864] [ 45.798865] CPU0 [ 45.798867] ---- [ 45.798871] lock(&mm->mmap_sem); [ 45.798872] [ 45.798876] lock(&mm->mmap_sem); [ 45.798877] [ 45.798877] *** DEADLOCK *** [ 45.798877] [ 45.798881] 3 locks held by syz-executor633/2090: [ 45.798895] #0: (shrinker_rwsem){++++..}, at: [<000000009517590e>] shrink_slab.part.0+0xb2/0xa20 [ 45.798907] #1: (rcu_read_lock){......}, at: [<00000000a9ec9162>] lowmem_scan+0x242/0xb50 [ 45.798919] #2: (lmk_event_lock){+.+.-.}, at: [<000000004e8c6fef>] handle_lmk_event+0xfb/0x8a0 [ 45.798920] [ 45.798920] stack backtrace: [ 45.798927] CPU: 1 PID: 2090 Comm: syz-executor633 Tainted: G W 4.9.186+ #10 [ 45.798939] ffff8801c48a7150 ffffffff81b5a0b1 00000000000000f0 ffff8801cf45df00 [ 45.798948] ffffffff83caf760 ffff8801cf45e848 ffffffff84250ec0 ffff8801c48a71c8 [ 45.798958] ffffffff81406d69 0000000000000000 ffffffff00000001 0000000000000001 [ 45.798960] Call Trace: [ 45.798968] [<0000000020714e7f>] dump_stack+0xc1/0x120 [ 45.798978] [<00000000dab8295d>] print_usage_bug.cold+0x452/0x5a2 [ 45.798985] [<0000000009651204>] mark_lock+0x6c7/0x12e0 [ 45.798993] [<000000003a037853>] ? print_irq_inversion_bug+0xa0/0xa0 [ 45.799000] [<000000002892d1cf>] __lock_acquire+0x5c3/0x4350 [ 45.799008] [<00000000354bf2b4>] ? trace_hardirqs_on+0x10/0x10 [ 45.799016] [<00000000354bf2b4>] ? trace_hardirqs_on+0x10/0x10 [ 45.799024] [<00000000285486d2>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 45.799031] [<0000000053e4514d>] lock_acquire+0x133/0x3d0 [ 45.799039] [<00000000e5ca552d>] ? get_cmdline+0xa3/0x2d0 [ 45.799046] [<00000000d1e9db23>] down_read+0x44/0xb0 [ 45.799052] [<00000000e5ca552d>] ? get_cmdline+0xa3/0x2d0 [ 45.799058] [<00000000e5ca552d>] get_cmdline+0xa3/0x2d0 [ 45.799066] [<00000000fe1ceb8a>] handle_lmk_event+0x13c/0x8a0 [ 45.799073] [<000000008cf6215b>] lowmem_scan+0x695/0xb50 [ 45.799081] [<00000000c6526f18>] shrink_slab.part.0+0x3cf/0xa20 [ 45.799089] [<0000000024dbec87>] ? unregister_shrinker+0x230/0x230 [ 45.799097] [<0000000004eef072>] shrink_node+0x1ed/0x750 [ 45.799106] [<00000000fb500730>] ? shrink_node_memcg.isra.0+0x1360/0x1360 [ 45.799115] [<00000000c04f80fc>] ? __delayacct_freepages_start+0x41/0x80 executing program executing program executing program [ 45.799124] [<00000000b38497cc>] try_to_free_pages+0x397/0xbd0 [ 45.799131] [<0000000070d35002>] ? shrink_node+0x750/0x750 [ 45.799139] [<000000008c115c07>] __alloc_pages_nodemask+0x930/0x1a80 [ 45.799147] [<0000000095bb437d>] ? __schedule+0x6d6/0x1f10 [ 45.799155] [<00000000f8eeea05>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 45.799164] [<00000000b2b1f096>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 45.799172] [<000000003beade3d>] __vmalloc_node_range+0x25b/0x610 [ 45.799180] [<00000000f747132c>] ? xt_alloc_table_info+0xc8/0x100 [ 45.799186] [<000000008759161e>] vmalloc+0x5c/0x70 [ 45.799194] [<00000000f747132c>] ? xt_alloc_table_info+0xc8/0x100 [ 45.799202] [<00000000f747132c>] xt_alloc_table_info+0xc8/0x100 [ 45.799211] [<00000000af58573d>] do_ip6t_set_ctl+0x231/0x480 [ 45.799219] [<0000000028abdc71>] ? compat_do_ip6t_set_ctl+0x150/0x150 [ 45.799228] [<00000000b7ec8159>] ? mutex_unlock+0x9/0x10 [ 45.799237] [<000000009997dff2>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 45.799244] [<00000000257806fe>] nf_setsockopt+0x6d/0xc0 [ 45.799251] [<000000006d71d5c4>] ipv6_setsockopt+0x10b/0x140 [ 45.799257] [<00000000cf15e697>] tcp_setsockopt+0x8a/0xe0 [ 45.799266] [<00000000d35112b2>] sock_common_setsockopt+0x9a/0xe0 [ 45.799274] [<0000000077a918d0>] SyS_setsockopt+0x159/0x240 [ 45.799281] [<00000000f1320c39>] ? SyS_recv+0x40/0x40 [ 45.799288] [<00000000ed45218f>] ? __do_page_fault+0x545/0xa60 [ 45.799294] [<000000004fdd303b>] ? do_syscall_64+0x4a/0x5c0 [ 45.799301] [<00000000f1320c39>] ? SyS_recv+0x40/0x40 [ 45.799307] [<0000000081e028f0>] do_syscall_64+0x1ad/0x5c0 [ 45.799315] [<00000000a1b3a343>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 46.027516] oom_reaper: reaped process 2081 (syz-executor633), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 46.046698] syz-executor633 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 [ 46.046708] CPU: 0 PID: 2088 Comm: syz-executor633 Tainted: G W 4.9.186+ #10 [ 46.046725] ffff8801ce7bf730 ffffffff81b5a0b1 ffff8801ce7bfa88 ffffffff833f11f0 [ 46.046735] 00000000000003e8 ffff8801ce7bfaa0 0000000000000000 ffff8801ce7bf7b0 [ 46.046744] ffffffff815054bb 0000000000000000 00000000000003e8 ffffffff8281c2a5 [ 46.046746] Call Trace: [ 46.046762] [<0000000020714e7f>] dump_stack+0xc1/0x120 [ 46.046773] [<000000002c3dd349>] dump_header.isra.0+0x142/0x74c [ 46.046782] [<000000005fcbaf0c>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 46.046790] [<00000000b8bcdcc2>] ? ___ratelimit+0x55/0x413 [ 46.046798] [<0000000096631340>] oom_kill_process.cold+0xd/0xa74 [ 46.046809] [<0000000066c00cb1>] ? rcu_read_unlock_special+0x6cb/0xb30 [ 46.046819] [<000000004a3155db>] ? has_capability_noaudit+0x25/0x30 [ 46.046828] [<000000000fcbb25e>] ? out_of_memory+0x6d3/0xea0 [ 46.046836] [<0000000054e3c2d3>] out_of_memory+0x29b/0xea0 [ 46.046843] [<0000000006d9f1cf>] ? out_of_memory+0x41c/0xea0 [ 46.046851] [<00000000cef3aaad>] ? oom_killer_disable+0x210/0x210 [ 46.046859] [<0000000030130449>] ? trace_hardirqs_on+0xd/0x10 [ 46.046867] [<000000009de47fab>] ? __alloc_pages_nodemask+0x10d0/0x1a80 [ 46.046874] [<00000000417b8d3f>] __alloc_pages_nodemask+0x1730/0x1a80 [ 46.046883] [<00000000b2b1f096>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 46.046891] [<0000000031f79444>] ? retint_kernel+0x2d/0x2d [ 46.046900] [<000000003beade3d>] __vmalloc_node_range+0x25b/0x610 [ 46.046909] [<00000000f747132c>] ? xt_alloc_table_info+0xc8/0x100 [ 46.046916] [<000000008759161e>] vmalloc+0x5c/0x70 [ 46.046924] [<00000000f747132c>] ? xt_alloc_table_info+0xc8/0x100 [ 46.046932] [<00000000f747132c>] xt_alloc_table_info+0xc8/0x100 [ 46.046941] [<00000000af58573d>] do_ip6t_set_ctl+0x231/0x480 [ 46.046956] [<0000000028abdc71>] ? compat_do_ip6t_set_ctl+0x150/0x150 [ 46.046966] [<00000000b7ec8159>] ? mutex_unlock+0x9/0x10 [ 46.046976] [<000000009997dff2>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 46.046984] [<00000000257806fe>] nf_setsockopt+0x6d/0xc0 [ 46.046991] [<000000006d71d5c4>] ipv6_setsockopt+0x10b/0x140 [ 46.047000] [<00000000cf15e697>] tcp_setsockopt+0x8a/0xe0 [ 46.047009] [<00000000d35112b2>] sock_common_setsockopt+0x9a/0xe0 [ 46.047017] [<0000000077a918d0>] SyS_setsockopt+0x159/0x240 [ 46.047025] [<00000000f1320c39>] ? SyS_recv+0x40/0x40 [ 46.047032] [<00000000ed45218f>] ? __do_page_fault+0x545/0xa60 [ 46.047044] [<000000004fdd303b>] ? do_syscall_64+0x4a/0x5c0 [ 46.047052] [<00000000f1320c39>] ? SyS_recv+0x40/0x40 [ 46.047059] [<0000000081e028f0>] do_syscall_64+0x1ad/0x5c0 [ 46.047067] [<00000000a1b3a343>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 46.047103] Mem-Info: [ 46.047121] active_anon:3232 inactive_anon:40 isolated_anon:0 [ 46.047121] active_file:16 inactive_file:37 isolated_file:0 [ 46.047121] unevictable:0 dirty:0 writeback:0 unstable:0 [ 46.047121] slab_reclaimable:4265 slab_unreclaimable:56781 [ 46.047121] mapped:16 shmem:48 pagetables:359 bounce:0 [ 46.047121] free:6041 free_pcp:39 free_cma:0 [ 46.047136] Node 0 active_anon:12928kB inactive_anon:160kB active_file:64kB inactive_file:148kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:64kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 46.047154] DMA32 free:18716kB 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 [ 46.047180] Normal free:5448kB min:5580kB low:9168kB high:12756kB active_anon:12928kB inactive_anon:160kB active_file:64kB inactive_file:148kB unevictable:0kB writepending:104kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17060kB slab_unreclaimable:227124kB kernel_stack:3456kB pagetables:1436kB bounce:0kB free_pcp:156kB local_pcp:156kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 46.047230] DMA32: 3*4kB (UM) 3*8kB (M) 2*16kB (M) 2*32kB (UM) 3*64kB (UM) 4*128kB (UM) 4*256kB (UM) 1*512kB (M) 2*1024kB (M) 1*2048kB (M) 3*4096kB (M) = 18756kB Normal: 349*4kB (UMH) 121*8kB (MH) 58*16kB (UMH) 28*32kB (UMH) 12*64kB (UMH) 0*128kB 2*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5468kB 102 total pagecache pages [ 46.047271] 0 pages in swap cache [ 46.047275] Swap cache stats: add 0, delete 0, find 0/0 [ 46.047277] Free swap = 0kB [ 46.047279] Total swap = 0kB [ 46.047281] 1965979 pages RAM [ 46.047283] 0 pages HighMem/MovableOnly [ 46.047285] 313625 pages reserved [ 46.047287] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 46.047300] [ 470] 0 470 5384 186 17 3 0 -1000 udevd [ 46.047310] [ 599] 0 599 5383 178 16 3 0 -1000 udevd [ 46.047319] [ 600] 0 600 5376 179 16 3 0 -1000 udevd [ 46.047328] [ 1775] 0 1775 2492 572 8 3 0 0 dhclient [ 46.047337] [ 1914] 0 1914 14264 109 23 3 0 0 rsyslogd [ 46.047345] [ 1962] 0 1962 4724 50 15 3 0 0 cron [ 46.047354] [ 1987] 0 1987 3734 44 12 3 0 0 mcstransd [ 46.047363] [ 1997] 0 1997 12489 153 27 4 0 -1000 sshd [ 46.047371] [ 2015] 0 2015 12926 1228 27 4 0 0 restorecond [ 46.047414] [ 2045] 0 2045 3648 41 13 3 0 0 getty [ 46.047422] [ 2070] 0 2070 3648 42 13 3 0 0 getty [ 46.047431] [ 2071] 0 2071 3648 43 13 3 0 0 getty [ 46.047440] [ 2072] 0 2072 3648 44 13 3 0 0 getty executing program [ 46.047449] [ 2073] 0 2073 3648 43 13 3 0 0 getty [ 46.047457] [ 2074] 0 2074 3648 44 13 3 0 0 getty [ 46.047466] [ 2075] 0 2075 3648 42 13 3 0 0 getty [ 46.047475] [ 2076] 0 2076 17820 198 39 3 0 0 sshd [ 46.047484] [ 2078] 0 2078 4380 1 4 2 0 0 syz-executor633 [ 46.047493] [ 2079] 0 2079 4380 11 4 2 0 0 syz-executor633 [ 46.047502] [ 2080] 0 2080 4380 11 4 2 0 0 syz-executor633 [ 46.047511] [ 2081] 0 2081 4380 0 5 2 0 1000 syz-executor633 [ 46.047520] [ 2082] 0 2082 4380 11 4 2 0 0 syz-executor633 [ 46.047529] [ 2083] 0 2083 4380 11 4 2 0 0 syz-executor633 [ 46.047537] [ 2084] 0 2084 4380 11 4 2 0 0 syz-executor633 [ 46.047546] [ 2085] 0 2085 4380 11 4 2 0 0 syz-executor633 [ 46.047555] [ 2086] 0 2086 4380 11 5 2 0 1000 syz-executor633 [ 46.047564] [ 2087] 0 2087 4380 11 5 2 0 1000 syz-executor633 [ 46.047573] [ 2088] 0 2088 4380 11 5 2 0 1000 syz-executor633 [ 46.047581] [ 2089] 0 2089 4380 11 5 2 0 1000 syz-executor633 [ 46.047590] [ 2090] 0 2090 4380 11 5 2 0 1000 syz-executor633 [ 46.047595] Out of memory: Kill process 2086 (syz-executor633) score 999 or sacrifice child [ 46.047608] Killed process 2086 (syz-executor633) total-vm:17520kB, anon-rss:44kB, file-rss:0kB, shmem-rss:0kB [ 46.067509] oom_reaper: reaped process 2086 (syz-executor633), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 46.086959] syz-executor633 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 [ 46.086969] CPU: 0 PID: 2088 Comm: syz-executor633 Tainted: G W 4.9.186+ #10 [ 46.086986] ffff8801ce7bf730 ffffffff81b5a0b1 ffff8801ce7bfa88 ffffffff833f11f0 [ 46.086997] 00000000000003e8 ffff8801ce7bfaa0 0000000000000000 ffff8801ce7bf7b0 [ 46.087007] ffffffff815054bb 0000000000000000 00000000000003e8 ffffffff8281c2a5 [ 46.087009] Call Trace: [ 46.087024] [<0000000020714e7f>] dump_stack+0xc1/0x120 [ 46.087035] [<000000002c3dd349>] dump_header.isra.0+0x142/0x74c [ 46.087043] [<000000005fcbaf0c>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 46.087052] [<00000000b8bcdcc2>] ? ___ratelimit+0x55/0x413 [ 46.087061] [<0000000096631340>] oom_kill_process.cold+0xd/0xa74 [ 46.087071] [<000000004a3155db>] ? has_capability_noaudit+0x25/0x30 [ 46.087081] [<00000000d56ba27a>] ? oom_badness.part.0+0x11d/0x600 [ 46.087088] [<0000000068ab81fb>] ? oom_badness.part.0+0x12f/0x600 [ 46.087096] [<000000000fcbb25e>] ? out_of_memory+0x6d3/0xea0 [ 46.087104] [<0000000054e3c2d3>] out_of_memory+0x29b/0xea0 [ 46.087112] [<0000000006d9f1cf>] ? out_of_memory+0x41c/0xea0 [ 46.087120] [<00000000cef3aaad>] ? oom_killer_disable+0x210/0x210 [ 46.087129] [<0000000030130449>] ? trace_hardirqs_on+0xd/0x10 [ 46.087137] [<000000009de47fab>] ? __alloc_pages_nodemask+0x10d0/0x1a80 [ 46.087144] [<00000000417b8d3f>] __alloc_pages_nodemask+0x1730/0x1a80 [ 46.087153] [<00000000b2b1f096>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 46.087161] [<0000000031f79444>] ? retint_kernel+0x2d/0x2d [ 46.087170] [<000000003beade3d>] __vmalloc_node_range+0x25b/0x610 [ 46.087180] [<00000000f747132c>] ? xt_alloc_table_info+0xc8/0x100 [ 46.087187] [<000000008759161e>] vmalloc+0x5c/0x70 [ 46.087195] [<00000000f747132c>] ? xt_alloc_table_info+0xc8/0x100 [ 46.087203] [<00000000f747132c>] xt_alloc_table_info+0xc8/0x100 [ 46.087212] [<00000000af58573d>] do_ip6t_set_ctl+0x231/0x480 [ 46.087227] [<0000000028abdc71>] ? compat_do_ip6t_set_ctl+0x150/0x150 [ 46.087237] [<00000000b7ec8159>] ? mutex_unlock+0x9/0x10 [ 46.087248] [<000000009997dff2>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 46.087256] [<00000000257806fe>] nf_setsockopt+0x6d/0xc0 [ 46.087264] [<000000006d71d5c4>] ipv6_setsockopt+0x10b/0x140 [ 46.087273] [<00000000cf15e697>] tcp_setsockopt+0x8a/0xe0 [ 46.087283] [<00000000d35112b2>] sock_common_setsockopt+0x9a/0xe0 [ 46.087291] [<0000000077a918d0>] SyS_setsockopt+0x159/0x240 [ 46.087299] [<00000000f1320c39>] ? SyS_recv+0x40/0x40 [ 46.087308] [<00000000ed45218f>] ? __do_page_fault+0x545/0xa60 [ 46.087315] [<000000004fdd303b>] ? do_syscall_64+0x4a/0x5c0 [ 46.087323] [<00000000f1320c39>] ? SyS_recv+0x40/0x40 [ 46.087330] [<0000000081e028f0>] do_syscall_64+0x1ad/0x5c0 [ 46.087338] [<00000000a1b3a343>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 46.089042] Mem-Info: [ 46.089061] active_anon:3232 inactive_anon:40 isolated_anon:0 [ 46.089061] active_file:15 inactive_file:27 isolated_file:0 [ 46.089061] unevictable:0 dirty:0 writeback:0 unstable:0 [ 46.089061] slab_reclaimable:4265 slab_unreclaimable:56781 [ 46.089061] mapped:16 shmem:48 pagetables:359 bounce:0 [ 46.089061] free:4960 free_pcp:21 free_cma:0 [ 46.089075] Node 0 active_anon:12928kB inactive_anon:160kB active_file:60kB inactive_file:108kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:64kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:55 all_unreclaimable? no [ 46.089092] DMA32 free:18240kB 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:4kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 [ 46.089119] Normal free:1600kB min:5580kB low:9168kB high:12756kB active_anon:12928kB inactive_anon:160kB active_file:60kB inactive_file:108kB unevictable:0kB writepending:104kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17060kB slab_unreclaimable:227124kB kernel_stack:3456kB pagetables:1436kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 46.089170] DMA32: 2*4kB (M) 4*8kB (UM) 3*16kB (UM) 2*32kB (UM) 1*64kB (M) 4*128kB (UM) 4*256kB (UM) 2*512kB (UM) 3*1024kB (UM) 2*2048kB (UM) 2*4096kB (M) = 18136kB Normal: 82*4kB (H) 21*8kB (H) 11*16kB (H) 4*32kB (H) 5*64kB (H) 0*128kB 2*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1632kB 102 total pagecache pages [ 46.089212] 0 pages in swap cache [ 46.089215] Swap cache stats: add 0, delete 0, find 0/0 [ 46.089217] Free swap = 0kB [ 46.089220] Total swap = 0kB [ 46.089222] 1965979 pages RAM [ 46.089224] 0 pages HighMem/MovableOnly [ 46.089226] 313625 pages reserved [ 46.089228] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 46.089244] [ 470] 0 470 5384 186 17 3 0 -1000 udevd [ 46.089254] [ 599] 0 599 5383 178 16 3 0 -1000 udevd [ 46.089263] [ 600] 0 600 5376 179 16 3 0 -1000 udevd [ 46.089272] [ 1775] 0 1775 2492 572 8 3 0 0 dhclient [ 46.089281] [ 1914] 0 1914 14264 109 23 3 0 0 rsyslogd [ 46.089290] [ 1962] 0 1962 4724 50 15 3 0 0 cron [ 46.089300] [ 1987] 0 1987 3734 44 12 3 0 0 mcstransd [ 46.089309] [ 1997] 0 1997 12489 153 27 4 0 -1000 sshd [ 46.089332] [ 2015] 0 2015 12926 1228 27 4 0 0 restorecond [ 46.089341] [ 2045] 0 2045 3648 41 13 3 0 0 getty [ 46.089350] [ 2070] 0 2070 3648 42 13 3 0 0 getty [ 46.089359] [ 2071] 0 2071 3648 43 13 3 0 0 getty [ 46.089367] [ 2072] 0 2072 3648 44 13 3 0 0 getty [ 46.089377] [ 2073] 0 2073 3648 43 13 3 0 0 getty [ 46.089385] [ 2074] 0 2074 3648 44 13 3 0 0 getty [ 46.089394] [ 2075] 0 2075 3648 42 13 3 0 0 getty [ 46.089403] [ 2076] 0 2076 17820 198 39 3 0 0 sshd [ 46.089412] [ 2078] 0 2078 4380 1 4 2 0 0 syz-executor633 [ 46.089421] [ 2079] 0 2079 4380 11 4 2 0 0 syz-executor633 executing program [ 46.089430] [ 2080] 0 2080 4380 11 4 2 0 0 syz-executor633 [ 46.089439] [ 2081] 0 2081 4380 0 5 2 0 1000 syz-executor633 [ 46.089447] [ 2082] 0 2082 4380 11 4 2 0 0 syz-executor633 [ 46.089456] [ 2083] 0 2083 4380 11 4 2 0 0 syz-executor633 [ 46.089465] [ 2084] 0 2084 4380 11 4 2 0 0 syz-executor633 [ 46.089474] [ 2085] 0 2085 4380 11 4 2 0 0 syz-executor633 [ 46.089483] [ 2086] 0 2086 4380 0 5 2 0 1000 syz-executor633 [ 46.089493] [ 2087] 0 2087 4380 11 5 2 0 1000 syz-executor633 [ 46.089501] [ 2088] 0 2088 4380 11 5 2 0 1000 syz-executor633 [ 46.089510] [ 2089] 0 2089 4380 11 5 2 0 1000 syz-executor633 [ 46.089519] [ 2090] 0 2090 4380 11 5 2 0 1000 syz-executor633 [ 46.089525] Out of memory: Kill process 2087 (syz-executor633) score 999 or sacrifice child [ 46.089538] Killed process 2087 (syz-executor633) total-vm:17520kB, anon-rss:44kB, file-rss:0kB, shmem-rss:0kB [ 46.096544] syz-executor633: vmalloc: allocation failure, allocated 1173893120 of 4026605568 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 46.096554] CPU: 1 PID: 2086 Comm: syz-executor633 Tainted: G W 4.9.186+ #10 [ 46.096569] ffff8801ce7ffa08 ffffffff81b5a0b1 1ffff10039cfff43 dffffc0000000000 [ 46.096579] ffffffff82aaa9c0 0000000000000000 0000000000400000 ffff8801ce7ffb30 [ 46.096589] ffffffff81506773 0000000041b58ab3 ffffffff82e3a4c0 ffffffff81430350 [ 46.096590] Call Trace: [ 46.096604] [<0000000020714e7f>] dump_stack+0xc1/0x120 [ 46.096614] [<000000003af6660a>] warn_alloc.cold+0x76/0x93 [ 46.096624] [<000000009ad8c701>] ? zone_watermark_ok_safe+0x260/0x260 [ 46.096635] [<00000000ad6d6652>] ? ___might_sleep+0x1a/0x280 [ 46.096643] [<000000008df1991c>] __vmalloc_node_range+0x3ff/0x610 [ 46.096652] [<00000000f747132c>] ? xt_alloc_table_info+0xc8/0x100 [ 46.096659] [<000000008759161e>] vmalloc+0x5c/0x70 [ 46.096667] [<00000000f747132c>] ? xt_alloc_table_info+0xc8/0x100 [ 46.096674] [<00000000f747132c>] xt_alloc_table_info+0xc8/0x100 [ 46.096684] [<00000000af58573d>] do_ip6t_set_ctl+0x231/0x480 [ 46.096692] [<0000000028abdc71>] ? compat_do_ip6t_set_ctl+0x150/0x150 [ 46.096701] [<00000000b7ec8159>] ? mutex_unlock+0x9/0x10 [ 46.096710] [<000000009997dff2>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 46.096717] [<00000000257806fe>] nf_setsockopt+0x6d/0xc0 [ 46.096725] [<000000006d71d5c4>] ipv6_setsockopt+0x10b/0x140 [ 46.096733] [<00000000cf15e697>] tcp_setsockopt+0x8a/0xe0 [ 46.096742] [<00000000d35112b2>] sock_common_setsockopt+0x9a/0xe0 [ 46.096750] [<0000000077a918d0>] SyS_setsockopt+0x159/0x240 [ 46.096757] [<00000000f1320c39>] ? SyS_recv+0x40/0x40 [ 46.096766] [<00000000ed45218f>] ? __do_page_fault+0x545/0xa60 executing program [ 46.096773] [<000000004fdd303b>] ? do_syscall_64+0x4a/0x5c0 [ 46.096780] [<00000000f1320c39>] ? SyS_recv+0x40/0x40 [ 46.096786] [<0000000081e028f0>] do_syscall_64+0x1ad/0x5c0 [ 46.096794] [<00000000a1b3a343>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 46.096797] Mem-Info: [ 46.096813] active_anon:3232 inactive_anon:40 isolated_anon:0 [ 46.096813] active_file:15 inactive_file:27 isolated_file:0 [ 46.096813] unevictable:0 dirty:0 writeback:0 unstable:0 [ 46.096813] slab_reclaimable:4265 slab_unreclaimable:56781 [ 46.096813] mapped:16 shmem:48 pagetables:359 bounce:0 [ 46.096813] free:406 free_pcp:0 free_cma:0 [ 46.096826] Node 0 active_anon:12928kB inactive_anon:160kB active_file:60kB inactive_file:108kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:64kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:1 all_unreclaimable? no [ 46.096845] DMA32 free:24kB 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 [ 46.096870] Normal free:1600kB min:5580kB low:9168kB high:12756kB active_anon:12928kB inactive_anon:160kB active_file:60kB inactive_file:108kB unevictable:0kB writepending:104kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17060kB slab_unreclaimable:227124kB kernel_stack:3456kB pagetables:1436kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB executing program lowmem_reserve[]: 0 0 0 [ 46.096904] 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: 82*4kB (H) 21*8kB (H) 11*16kB (H) 4*32kB (H) 5*64kB (H) 0*128kB 2*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1632kB 102 total pagecache pages [ 46.096944] 0 pages in swap cache [ 46.096948] Swap cache stats: add 0, delete 0, find 0/0 [ 46.096949] Free swap = 0kB [ 46.096951] Total swap = 0kB [ 46.096953] 1965979 pages RAM [ 46.096955] 0 pages HighMem/MovableOnly [ 46.096957] 313625 pages reserved [ 46.111451] syz-executor633: vmalloc: allocation failure, allocated 1144262656 of 4026605568 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 46.111460] CPU: 0 PID: 2081 Comm: syz-executor633 Tainted: G W 4.9.186+ #10 [ 46.111476] ffff8801cdc67a08 ffffffff81b5a0b1 1ffff10039b8cf43 dffffc0000000000 [ 46.111486] ffffffff82aaa9c0 0000000000000000 0000000000400000 ffff8801cdc67b30 executing program [ 46.111497] ffffffff81506773 0000000041b58ab3 ffffffff82e3a4c0 ffffffff81430350 [ 46.111499] Call Trace: [ 46.111514] [<0000000020714e7f>] dump_stack+0xc1/0x120 [ 46.111524] [<000000003af6660a>] warn_alloc.cold+0x76/0x93 [ 46.111534] [<000000009ad8c701>] ? zone_watermark_ok_safe+0x260/0x260 [ 46.111544] [<000000008df1991c>] __vmalloc_node_range+0x3ff/0x610 [ 46.111554] [<00000000f747132c>] ? xt_alloc_table_info+0xc8/0x100 [ 46.111561] [<000000008759161e>] vmalloc+0x5c/0x70 [ 46.111569] [<00000000f747132c>] ? xt_alloc_table_info+0xc8/0x100 [ 46.111577] [<00000000f747132c>] xt_alloc_table_info+0xc8/0x100 [ 46.111587] [<00000000af58573d>] do_ip6t_set_ctl+0x231/0x480 [ 46.111596] [<0000000028abdc71>] ? compat_do_ip6t_set_ctl+0x150/0x150 [ 46.111605] [<00000000b7ec8159>] ? mutex_unlock+0x9/0x10 [ 46.111615] [<000000009997dff2>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 46.111623] [<00000000257806fe>] nf_setsockopt+0x6d/0xc0 [ 46.111631] [<000000006d71d5c4>] ipv6_setsockopt+0x10b/0x140 [ 46.111640] [<00000000cf15e697>] tcp_setsockopt+0x8a/0xe0 [ 46.111650] [<00000000d35112b2>] sock_common_setsockopt+0x9a/0xe0 [ 46.111659] [<0000000077a918d0>] SyS_setsockopt+0x159/0x240 [ 46.111667] [<00000000f1320c39>] ? SyS_recv+0x40/0x40 [ 46.111676] [<00000000ed45218f>] ? __do_page_fault+0x545/0xa60 [ 46.111684] [<000000004fdd303b>] ? do_syscall_64+0x4a/0x5c0 [ 46.111691] [<00000000f1320c39>] ? SyS_recv+0x40/0x40 [ 46.111698] [<0000000081e028f0>] do_syscall_64+0x1ad/0x5c0 [ 46.111707] [<00000000a1b3a343>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 46.111710] Mem-Info: [ 46.111728] active_anon:3232 inactive_anon:40 isolated_anon:0 [ 46.111728] active_file:15 inactive_file:27 isolated_file:0 [ 46.111728] unevictable:0 dirty:0 writeback:0 unstable:0 [ 46.111728] slab_reclaimable:4265 slab_unreclaimable:56781 [ 46.111728] mapped:16 shmem:48 pagetables:359 bounce:0 [ 46.111728] free:406 free_pcp:0 free_cma:0 [ 46.111742] Node 0 active_anon:12928kB inactive_anon:160kB active_file:60kB inactive_file:108kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:64kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:1 all_unreclaimable? no [ 46.111761] DMA32 free:24kB 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 [ 46.111788] Normal free:1600kB min:5580kB low:9168kB high:12756kB active_anon:12928kB inactive_anon:160kB active_file:60kB inactive_file:108kB unevictable:0kB writepending:104kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17060kB slab_unreclaimable:227124kB kernel_stack:3456kB pagetables:1436kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 46.111823] 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: 82*4kB (H) 21*8kB (H) 11*16kB (H) 4*32kB (H) 5*64kB (H) 0*128kB 2*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1632kB 102 total pagecache pages [ 46.111868] 0 pages in swap cache [ 46.111872] Swap cache stats: add 0, delete 0, find 0/0 [ 46.111874] Free swap = 0kB [ 46.111876] Total swap = 0kB [ 46.111878] 1965979 pages RAM [ 46.111880] 0 pages HighMem/MovableOnly [ 46.111882] 313625 pages reserved [ 46.117429] syz-executor633: vmalloc: allocation failure, allocated 1078222848 of 4026605568 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [ 46.117438] CPU: 0 PID: 2087 Comm: syz-executor633 Tainted: G W 4.9.186+ #10 [ 46.117451] ffff8801ce7d7a08 ffffffff81b5a0b1 1ffff10039cfaf43 dffffc0000000000 [ 46.117462] ffffffff82aaa9c0 0000000000000000 0000000000400000 ffff8801ce7d7b30 [ 46.117472] ffffffff81506773 0000000041b58ab3 ffffffff82e3a4c0 ffffffff81430350 [ 46.117474] Call Trace: [ 46.117486] [<0000000020714e7f>] dump_stack+0xc1/0x120 [ 46.117494] [<000000003af6660a>] warn_alloc.cold+0x76/0x93 [ 46.117504] [<000000009ad8c701>] ? zone_watermark_ok_safe+0x260/0x260 [ 46.117513] [<000000008df1991c>] __vmalloc_node_range+0x3ff/0x610 [ 46.117521] [<00000000f747132c>] ? xt_alloc_table_info+0xc8/0x100 [ 46.117529] [<000000008759161e>] vmalloc+0x5c/0x70 [ 46.117537] [<00000000f747132c>] ? xt_alloc_table_info+0xc8/0x100 [ 46.117545] [<00000000f747132c>] xt_alloc_table_info+0xc8/0x100 [ 46.117554] [<00000000af58573d>] do_ip6t_set_ctl+0x231/0x480 [ 46.117563] [<0000000028abdc71>] ? compat_do_ip6t_set_ctl+0x150/0x150 [ 46.117572] [<00000000b7ec8159>] ? mutex_unlock+0x9/0x10 [ 46.117581] [<000000009997dff2>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 46.117589] [<00000000257806fe>] nf_setsockopt+0x6d/0xc0 [ 46.117597] [<000000006d71d5c4>] ipv6_setsockopt+0x10b/0x140 [ 46.117605] [<00000000cf15e697>] tcp_setsockopt+0x8a/0xe0 [ 46.117614] [<00000000d35112b2>] sock_common_setsockopt+0x9a/0xe0 [ 46.117622] [<0000000077a918d0>] SyS_setsockopt+0x159/0x240 [ 46.117630] [<00000000f1320c39>] ? SyS_recv+0x40/0x40 [ 46.117638] [<00000000ed45218f>] ? __do_page_fault+0x545/0xa60 [ 46.117645] [<000000004fdd303b>] ? do_syscall_64+0x4a/0x5c0 [ 46.117653] [<00000000f1320c39>] ? SyS_recv+0x40/0x40 [ 46.117660] [<0000000081e028f0>] do_syscall_64+0x1ad/0x5c0 [ 46.117668] [<00000000a1b3a343>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 46.117671] Mem-Info: [ 46.117689] active_anon:3232 inactive_anon:40 isolated_anon:0 [ 46.117689] active_file:15 inactive_file:27 isolated_file:0 [ 46.117689] unevictable:0 dirty:0 writeback:0 unstable:0 [ 46.117689] slab_reclaimable:4265 slab_unreclaimable:56781 [ 46.117689] mapped:16 shmem:48 pagetables:359 bounce:0 [ 46.117689] free:406 free_pcp:0 free_cma:0 [ 46.117703] Node 0 active_anon:12928kB inactive_anon:160kB active_file:60kB inactive_file:108kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:64kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:1 all_unreclaimable? no [ 46.117722] DMA32 free:24kB 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 [ 46.117748] Normal free:1600kB min:5580kB low:9168kB high:12756kB active_anon:12928kB inactive_anon:160kB active_file:60kB inactive_file:108kB unevictable:0kB writepending:104kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:17060kB slab_unreclaimable:227124kB kernel_stack:3456kB pagetables:1436kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 [ 46.117785] 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: 82*4kB (H) 21*8kB (H) 11*16kB (H) 4*32kB (H) 5*64kB (H) 0*128kB 2*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1632kB 102 total pagecache pages [ 46.117828] 0 pages in swap cache [ 46.117832] Swap cache stats: add 0, delete 0, find 0/0 [ 46.117835] Free swap = 0kB [ 46.117837] Total swap = 0kB [ 46.117839] 1965979 pages RAM [ 46.117841] 0 pages HighMem/MovableOnly [ 46.117843] 313625 pages reserved [ 46.127793] oom_reaper: reaped process 2087 (syz-executor633), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 46.521648] ODEBUG: Out of memory. ODEBUG disabled [ 48.132498] lowmemorykiller: Killing 'syz-executor633' (2088) (tgid 2088), adj 1000, [ 48.132498] to free 44kB on behalf of 'syz-executor633' (2088) because [ 48.132498] cache 2316kB is below limit 6144kB for oom_score_adj 0 [ 48.132498] Free memory is -13320kB above reserved [ 48.132505] BUG: sleeping function called from invalid context at kernel/fork.c:903 executing program [ 48.132510] in_atomic(): 0, irqs_disabled(): 0, pid: 2088, name: syz-executor633 [ 48.132512] INFO: lockdep is turned off. [ 48.132530] Preemption disabled at: [ 48.132531] [<0000000079c5e4f7>] get_task_mm+0x20/0xc0 [ 48.132541] CPU: 0 PID: 2088 Comm: syz-executor633 Tainted: G W 4.9.186+ #10 [ 48.132557] ffff8801ce7bf408 ffffffff81b5a0b1 0000000000000000 0000000000000001 [ 48.132567] ffff8801ce6aaf80 ffffffff810d0cc0 ffff8801ce6aaf80 ffff8801ce7bf440 [ 48.132577] ffffffff8140032c ffff8801ce6aaf80 ffffffff82a39940 0000000000000387 [ 48.132578] Call Trace: [ 48.132588] [<0000000020714e7f>] dump_stack+0xc1/0x120 [ 48.132594] [<0000000079c5e4f7>] ? get_task_mm+0x20/0xc0 [ 48.132604] [<00000000517388f7>] ___might_sleep.cold+0x1c1/0x1fa [ 48.132614] [<000000002f090882>] __might_sleep+0x95/0x1a0 [ 48.132622] [<00000000c3acdd5d>] mmput+0x28/0x370 [ 48.132632] [<0000000083c11fa7>] handle_lmk_event+0xea/0x8a0 [ 48.132640] [<000000008cf6215b>] lowmem_scan+0x695/0xb50 [ 48.132649] [<00000000c6526f18>] shrink_slab.part.0+0x3cf/0xa20 [ 48.132658] [<0000000024dbec87>] ? unregister_shrinker+0x230/0x230 [ 48.132667] [<00000000354bf2b4>] ? trace_hardirqs_on+0x10/0x10 [ 48.132676] [<0000000011d1bb50>] ? free_pcppages_bulk+0xcb1/0x16a0 [ 48.132684] [<0000000004eef072>] shrink_node+0x1ed/0x750 [ 48.132693] [<00000000fb500730>] ? shrink_node_memcg.isra.0+0x1360/0x1360 executing program [ 48.132703] [<00000000c04f80fc>] ? __delayacct_freepages_start+0x41/0x80 [ 48.132712] [<00000000b38497cc>] try_to_free_pages+0x397/0xbd0 [ 48.132720] [<0000000070d35002>] ? shrink_node+0x750/0x750 [ 48.132729] [<000000008c115c07>] __alloc_pages_nodemask+0x930/0x1a80 [ 48.132738] [<00000000b2b1f096>] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 48.132747] [<0000000031f79444>] ? retint_kernel+0x2d/0x2d [ 48.132756] [<000000003beade3d>] __vmalloc_node_range+0x25b/0x610 [ 48.132766] [<00000000f747132c>] ? xt_alloc_table_info+0xc8/0x100 [ 48.132774] [<000000008759161e>] vmalloc+0x5c/0x70 [ 48.132781] [<00000000f747132c>] ? xt_alloc_table_info+0xc8/0x100 [ 48.132789] [<00000000f747132c>] xt_alloc_table_info+0xc8/0x100 [ 48.132798] [<00000000af58573d>] do_ip6t_set_ctl+0x231/0x480 [ 48.132808] [<0000000028abdc71>] ? compat_do_ip6t_set_ctl+0x150/0x150 [ 48.132817] [<00000000b7ec8159>] ? mutex_unlock+0x9/0x10 [ 48.132827] [<000000009997dff2>] ? nf_sockopt_find.constprop.0+0x1b7/0x230 [ 48.132835] [<00000000257806fe>] nf_setsockopt+0x6d/0xc0 [ 48.132843] [<000000006d71d5c4>] ipv6_setsockopt+0x10b/0x140 [ 48.132852] [<00000000cf15e697>] tcp_setsockopt+0x8a/0xe0 [ 48.132862] [<00000000d35112b2>] sock_common_setsockopt+0x9a/0xe0 [ 48.132870] [<0000000077a918d0>] SyS_setsockopt+0x159/0x240 [ 48.132879] [<00000000f1320c39>] ? SyS_recv+0x40/0x40 [ 48.132887] [<00000000ed45218f>] ? __do_page_fault+0x545/0xa60 [ 48.132893] [<000000004fdd303b>] ? do_syscall_64+0x4a/0x5c0 [ 48.132901] [<00000000f1320c39>] ? SyS_recv+0x40/0x40 [ 48.132908] [<0000000081e028f0>] do_syscall_64+0x1ad/0x5c0 [ 48.132916] [<00000000a1b3a343>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 48.159471] lowmemorykiller: Killing 'syz-executor633' (2088) (tgid 2088), adj 1000, [ 48.159471] to free 44kB on behalf of 'syz-executor633' (2094) because [ 48.159471] cache 2316kB is below limit 6144kB for oom_score_adj 0 [ 48.159471] Free memory is -13396kB above reserved [ 48.188977] oom_reaper: reaped process 2088 (syz-executor633), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 48.195847] syz-executor633 invoked oom-killer: gfp_mask=0x24002c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN), nodemask=0, order=0, oom_score_adj=1000 [ 48.195858] CPU: 0 PID: 2093 Comm: syz-executor633 Tainted: G W 4.9.186+ #10 [ 48.195874] ffff8801bbda7730 ffffffff81b5a0b1 ffff8801bbda7a88 ffffffff833f11f0 [ 48.195884] 00000000000003e8 ffff8801bbda7aa0 0000000000000000 ffff8801bbda77b0 [ 48.195893] ffffffff815054bb 0000000000000000 00000000000003e8 ffffffff8281c2a5 [ 48.195895] Call Trace: [ 48.195910] [<0000000020714e7f>] dump_stack+0xc1/0x120 [ 48.195920] [<000000002c3dd349>] dump_header.isra.0+0x142/0x74c [ 48.195929] [<000000005fcbaf0c>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 48.195937] [<00000000b8bcdcc2>] ? ___ratelimit+0x55/0x413 [ 48.195955] [<0000000096631340>] oom_kill_process.cold+0xd/0xa74 [ 48.195965] [<000000004a3155db>] ? has_capability_noaudit+0x25/0x30 [ 48.195975] [<00000000d56ba27a>] ? oom_badness.part.0+0x11d/0x600 [ 48.195983] [<0000000068ab81fb>] ? oom_badness.part.0+0x12f/0x600 [ 48.195990] [<000000000fcbb25e>] ? out_of_memory+0x6d3/0xea0 [ 48.195998] [<0000000054e3c2d3>] out_of_memory+0x29b/0xea0 [ 48.196006] [<0000000006d9f1cf>] ? out_of_memory+0x41c/0xea0 [ 48.196014] [<00000000cef3aaad>] ? oom_killer_disable+0x210/0x210 ** 25 printk messages dropped ** [ 48.196216] Mem-Info: ** 1 printk messages dropped ** [ 48.196246] Node 0 active_anon:13000kB inactive_anon:160kB active_file:684kB inactive_file:736kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:1456kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no ** 36 printk messages dropped ** [ 48.197795] [ 2083] 0 2083 4380 11 4 2 0 0 syz-executor633 [ 48.197804] [ 2084] 0 2084 4380 11 4 2 0 0 syz-executor633 Connection to 10.128.0.139 closed by remote host. ** 327 printk messages dropped ** [ 49.630397] [<000000002578