CPU: 1 PID: 5218 Comm: rsyslogd Not tainted 4.19.0-rc2+ #95 rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: rcu: (detected by 0, t=10636 jiffies, g=47829, q=5) __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 rcu: All QSes seen, last rcu_preempt kthread activity 10608 (4294983016-4294972408), jiffies_till_next_fqs=1, root ->qsmask 0x0 syz-executor3 R running task 20984 19398 5357 0x8000000c warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 Call Trace: sched_show_task.cold.83+0x2b6/0x30a kernel/sched/core.c:5296 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 print_other_cpu_stall.cold.79+0xa83/0xba5 kernel/rcu/tree.c:1430 check_cpu_stall kernel/rcu/tree.c:1557 [inline] __rcu_pending kernel/rcu/tree.c:3276 [inline] rcu_pending kernel/rcu/tree.c:3319 [inline] rcu_check_callbacks+0xafc/0x1990 kernel/rcu/tree.c:2665 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:995 [inline] nlmsg_new include/net/netlink.h:511 [inline] __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:377 update_process_times+0x2d/0x70 kernel/time/timer.c:1636 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:410 br_multicast_del_pg+0x3df/0x790 net/bridge/br_multicast.c:292 br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:316 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1029 [inline] smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1054 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline] RIP: 0010:kmem_cache_alloc_node+0x247/0x730 mm/slab.c:3642 Code: 40 7e 0f 85 32 ff ff ff e8 15 d6 3e ff e9 28 ff ff ff e8 2c 33 c3 ff 48 83 3d cc 81 b0 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 bf fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 b2 73 RSP: 0018:ffff8801dac07450 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1003411ed59 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282 RBP: ffff8801dac074c0 R08: ffff8801a08f6ac8 R09: 0000000000000002 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 R10: 0000000000000000 R11: ffff8801a08f6200 R12: ffff8801d9a04040 R13: ffff8801d9a04040 R14: 0000000000000000 R15: 0000000000000282 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:console_unlock+0x1017/0x11a0 kernel/printk/printk.c:2411 Code: c1 e8 03 42 80 3c 20 00 0f 85 8d 01 00 00 48 83 3d 25 98 0d 08 00 0f 84 78 01 00 00 e8 a2 3d 1a 00 48 8b bd c0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 68 f9 ff ff e8 4a 8e 5d 00 e9 08 f4 ff ff e8 80 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 RSP: 0018:ffff8801bdae54d0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801bd208380 RBX: 0000000000000200 RCX: 1ffff10037a4118e RDX: 0000000000000000 RSI: ffffffff8164918e RDI: 0000000000000293 RBP: ffff8801bdae5630 R08: ffff8801bd208c70 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bd208380 R12: dffffc0000000000 R13: ffffffff848d7440 R14: ffffffff89d9be50 R15: dffffc0000000000 alloc_skb include/linux/skbuff.h:995 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 vprintk_emit+0x33d/0x930 kernel/printk/printk.c:1926 vprintk_default+0x28/0x30 kernel/printk/printk.c:1967 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:2000 show_free_areas.cold.119+0x1f75/0x215d mm/page_alloc.c:5033 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:slab_alloc mm/slab.c:3385 [inline] RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552 Code: 7e 0f 85 cf fe ff ff e8 76 b6 3e ff e9 c5 fe ff ff e8 8d 13 c3 ff 48 83 3d 2d 62 b0 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 b2 73 RSP: 0018:ffff8801bea4f748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 show_mem+0x34/0x17b lib/show_mem.c:18 RDX: 0000000000000000 RSI: ffff8801a08f6a80 RDI: 0000000000000282 RBP: ffff8801bea4f7b0 R08: ffff8801a08f6200 R09: 0000000000000000 dump_header+0x2f1/0xf72 mm/oom_kill.c:445 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9a04040 R14: ffff8801d9a04040 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1283 ____bpf_clone_redirect net/core/filter.c:2075 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062 bpf_prog_bebbfe2050753572+0xe80/0x1000 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952 rcu: rcu_preempt kthread starved for 10608 jiffies! g47829 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 22736 10 2 0x80000000 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline] __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804 rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6257 __do_fault+0x100/0x6b0 mm/memory.c:3240 do_read_fault mm/memory.c:3652 [inline] do_fault mm/memory.c:3752 [inline] handle_pte_fault mm/memory.c:3983 [inline] __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107 kthread+0x35a/0x420 kernel/kthread.c:246 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395 syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor3 cpuset= syz3 mems_allowed=0 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161 RIP: 0033:0x7f11a3c2e1fd Code: Bad RIP value. RSP: 002b:00007f11a11cde30 EFLAGS: 00010293 RAX: 0000000000000fef RBX: 000000000189f670 RCX: 00007f11a3c2e1fd RDX: 0000000000000fff RSI: 00007f11a2a025a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 000000000188a260 R09: 0000000000000000 R10: 6b205d3239363531 R11: 0000000000000293 R12: 000000000065e420 R13: 00007f11a11ce9c0 R14: 00007f11a4273040 R15: 0000000000000003 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 19398 Comm: syz-executor3 Not tainted 4.19.0-rc2+ #95 Mem-Info: active_anon:46913 inactive_anon:1483 isolated_anon:0 active_file:522 inactive_file:553 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9690 slab_unreclaimable:1473371 mapped:41153 shmem:1491 pagetables:594 bounce:0 free:13713 free_pcp:91 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:187652kB inactive_anon:5932kB active_file:2088kB inactive_file:2212kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:164612kB dirty:0kB writeback:0kB shmem:5964kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Call Trace: Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 lowmem_reserve[]: 0 2815 6318 warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 6318 Node 0 DMA32 free:25228kB min:30036kB low:37544kB high:45052kB active_anon:2048kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2887244kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:116kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 0 3503 3503 Node 0 Normal free:13716kB min:37376kB low:46720kB high:56064kB active_anon:185604kB inactive_anon:5932kB active_file:2088kB inactive_file:2212kB unevictable:0kB writepending:0kB present:4718592kB managed:3587472kB mlocked:0kB kernel_stack:5344kB pagetables:2376kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 DMA32: 3*4kB (M) 2*8kB (M) 1*16kB (M) 1*32kB (M) __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2677 3*64kB (UM) 3*128kB (M) fallback_alloc+0x203/0x2e0 mm/slab.c:3219 2*256kB ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 (M) slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 3*512kB (M) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25228kB Node 0 Normal: 1778*4kB (UME) 558*8kB (UME) alloc_skb include/linux/skbuff.h:995 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 100*16kB ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 (UME) addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819 17*32kB (UM) call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 7*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 14168kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 2566 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 0 pages HighMem/MovableOnly 343323 pages reserved 0 pages cma reserved rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) rsyslogd cpuset= / mems_allowed=0 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:slab_alloc mm/slab.c:3385 [inline] RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552 Code: 7e 0f 85 cf fe ff ff e8 76 b6 3e ff e9 c5 fe ff ff e8 8d 13 c3 ff 48 83 3d 2d 62 b0 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 b2 73 RSP: 0018:ffff8801bea4f748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801a08f6a80 RDI: 0000000000000282 RBP: ffff8801bea4f7b0 R08: ffff8801a08f6200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9a04040 R14: ffff8801d9a04040 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1283 ____bpf_clone_redirect net/core/filter.c:2075 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062 bpf_prog_bebbfe2050753572+0xe80/0x1000 CPU: 1 PID: 5218 Comm: rsyslogd Not tainted 4.19.0-rc2+ #95 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) syz-executor3 cpuset= warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 syz3 mems_allowed=0 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:995 [inline] nlmsg_new include/net/netlink.h:511 [inline] __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:377 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:410 br_multicast_del_pg+0x3df/0x790 net/bridge/br_multicast.c:292 br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:316 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:console_unlock+0x1017/0x11a0 kernel/printk/printk.c:2411 Code: c1 e8 03 42 80 3c 20 00 0f 85 8d 01 00 00 48 83 3d 25 98 0d 08 00 0f 84 78 01 00 00 e8 a2 3d 1a 00 48 8b bd c0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 68 f9 ff ff e8 4a 8e 5d 00 e9 08 f4 ff ff e8 80 RSP: 0018:ffff8801bdae54d0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801bd208380 RBX: 0000000000000200 RCX: 1ffff10037a4118e RDX: 0000000000000000 RSI: ffffffff8164918e RDI: 0000000000000293 RBP: ffff8801bdae5630 R08: ffff8801bd208c70 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bd208380 R12: dffffc0000000000 R13: ffffffff848d7440 R14: ffffffff89d9be50 R15: dffffc0000000000 vprintk_emit+0x33d/0x930 kernel/printk/printk.c:1926 vprintk_default+0x28/0x30 kernel/printk/printk.c:1967 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:2000 show_free_areas.cold.119+0x1f75/0x215d mm/page_alloc.c:5033 show_mem+0x34/0x17b lib/show_mem.c:18 dump_header+0x2f1/0xf72 mm/oom_kill.c:445 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952 out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline] __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6257 __do_fault+0x100/0x6b0 mm/memory.c:3240 do_read_fault mm/memory.c:3652 [inline] do_fault mm/memory.c:3752 [inline] handle_pte_fault mm/memory.c:3983 [inline] __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161 RIP: 0033:0x7f11a3c2e1fd Code: Bad RIP value. RSP: 002b:00007f11a11cde30 EFLAGS: 00010293 RAX: 0000000000000fef RBX: 000000000189f670 RCX: 00007f11a3c2e1fd RDX: 0000000000000fff RSI: 00007f11a2a025a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 000000000188a260 R09: 0000000000000000 R10: 6b205d3239363531 R11: 0000000000000293 R12: 000000000065e420 R13: 00007f11a11ce9c0 R14: 00007f11a4273040 R15: 0000000000000003 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 19398 Comm: syz-executor3 Not tainted 4.19.0-rc2+ #95 Mem-Info: active_anon:46913 inactive_anon:1483 isolated_anon:0 active_file:522 inactive_file:553 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9690 slab_unreclaimable:1473371 mapped:41153 shmem:1491 pagetables:594 bounce:0 free:13713 free_pcp:91 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:187652kB inactive_anon:5932kB active_file:2088kB inactive_file:2212kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:164612kB dirty:0kB writeback:0kB shmem:5964kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Call Trace: Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 lowmem_reserve[]: 0 2815 6318 warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 6318 Node 0 DMA32 free:25228kB min:30036kB low:37544kB high:45052kB active_anon:2048kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2887244kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:116kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 3503 3503 Node 0 Normal free:13716kB min:37376kB low:46720kB high:56064kB active_anon:185604kB inactive_anon:5932kB active_file:2088kB inactive_file:2212kB unevictable:0kB writepending:0kB present:4718592kB managed:3587472kB mlocked:0kB kernel_stack:5344kB pagetables:2376kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 = 15908kB Node 0 DMA32: 3*4kB (M) 2*8kB (M) 1*16kB __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2677 (M) 1*32kB fallback_alloc+0x203/0x2e0 mm/slab.c:3219 (M) ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 3*64kB slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 (UM) 3*128kB (M) __alloc_skb+0x119/0x770 net/core/skbuff.c:193 2*256kB (M) 3*512kB (M) 4*1024kB (UM) 3*2048kB alloc_skb include/linux/skbuff.h:995 [inline] ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403 (UM) 3*4096kB ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669 (M) addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819 = 25228kB Node 0 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 Normal: 1778*4kB (UME) 558*8kB (UME) 100*16kB (UME) 17*32kB (UM) 7*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 = 14168kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 2566 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 343323 pages reserved 0 pages cma reserved rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) rsyslogd cpuset= / mems_allowed=0 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:slab_alloc mm/slab.c:3385 [inline] RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552 Code: 7e 0f 85 cf fe ff ff e8 76 b6 3e ff e9 c5 fe ff ff e8 8d 13 c3 ff 48 83 3d 2d 62 b0 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 b2 73 RSP: 0018:ffff8801bea4f748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801a08f6a80 RDI: 0000000000000282 RBP: ffff8801bea4f7b0 R08: ffff8801a08f6200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801d9a04040 R14: ffff8801d9a04040 R15: 0000000000480020 skb_clone+0x1bb/0x500 net/core/skbuff.c:1283 ____bpf_clone_redirect net/core/filter.c:2075 [inline] bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062 bpf_prog_bebbfe2050753572+0xe80/0x1000 CPU: 1 PID: 5218 Comm: rsyslogd Not tainted 4.19.0-rc2+ #95 ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 syz-executor3 cpuset= syz3 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 mems_allowed=0 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2677 fallback_alloc+0x203/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 __alloc_skb+0x119/0x770 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:995 [inline] nlmsg_new include/net/netlink.h:511 [inline] __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:377 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:410 br_multicast_del_pg+0x3df/0x790 net/bridge/br_multicast.c:292 br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:316 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:console_unlock+0x1017/0x11a0 kernel/printk/printk.c:2411 Code: c1 e8 03 42 80 3c 20 00 0f 85 8d 01 00 00 48 83 3d 25 98 0d 08 00 0f 84 78 01 00 00 e8 a2 3d 1a 00 48 8b bd c0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 68 f9 ff ff e8 4a 8e 5d 00 e9 08 f4 ff ff e8 80 RSP: 0018:ffff8801bdae54d0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8801bd208380 RBX: 0000000000000200 RCX: 1ffff10037a4118e RDX: 0000000000000000 RSI: ffffffff8164918e RDI: 0000000000000293 RBP: ffff8801bdae5630 R08: ffff8801bd208c70 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8801bd208380 R12: dffffc0000000000 R13: ffffffff848d7440 R14: ffffffff89d9be50 R15: dffffc0000000000 vprintk_emit+0x33d/0x930 kernel/printk/printk.c:1926 vprintk_default+0x28/0x30 kernel/printk/printk.c:1967 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398 printk+0xa7/0xcf kernel/printk/printk.c:2000 show_free_areas.cold.119+0x1f75/0x215d mm/page_alloc.c:5033 show_mem+0x34/0x17b lib/show_mem.c:18 dump_header+0x2f1/0xf72 mm/oom_kill.c:445 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952 out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline] __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6257 __do_fault+0x100/0x6b0 mm/memory.c:3240 do_read_fault mm/memory.c:3652 [inline] do_fault mm/memory.c:3752 [inline] handle_pte_fault mm/memory.c:3983 [inline] __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161 RIP: 0033:0x7f11a3c2e1fd Code: Bad RIP value. RSP: 002b:00007f11a11cde30 EFLAGS: 00010293 RAX: 0000000000000fef RBX: 000000000189f670 RCX: 00007f11a3c2e1fd RDX: 0000000000000fff RSI: 00007f11a2a025a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 000000000188a260 R09: 0000000000000000 R10: 6b205d3239363531 R11: 0000000000000293 R12: 000000000065e420 R13: 00007f11a11ce9c0 R14: 00007f11a4273040 R15: 0000000000000003 warn_alloc_show_mem: 1 callbacks suppressed CPU: 0 PID: 19398 Comm: syz-executor3 Not tainted 4.19.0-rc2+ #95 Mem-Info: active_anon:46913 inactive_anon:1483 isolated_anon:0 active_file:522 inactive_file:553 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:9690 slab_unreclaimable:1473371 mapped:41153 shmem:1491 pagetables:594 bounce:0 free:13713 free_pcp:91 free_cma:0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Node 0 active_anon:187652kB inactive_anon:5932kB active_file:2088kB inactive_file:2212kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:164612kB dirty:0kB writeback:0kB shmem:5964kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 172032kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Call Trace: Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 lowmem_reserve[]: 0 2815 6318 warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426 6318 Node 0 DMA32 free:25228kB min:30036kB low:37544kB high:45052kB active_anon:2048kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2887244kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:116kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3503 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297 3503 Node 0 Normal free:13716kB min:37376kB low:46720kB high:56064kB active_anon:185604kB inactive_anon:5932kB active_file:2088kB inactive_file:2212kB unevictable:0kB writepending:0kB present:4718592kB managed:3587472kB mlocked:0kB kernel_stack:5344kB pagetables:2376kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 3*4kB (M) __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2677 2*8kB (M) fallback_alloc+0x203/0x2e0 mm/slab.c:3219 1*16kB ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 (M) slab_alloc_node mm/slab.c:3327 [inline] kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642 1*32kB (M) 3*64kB __alloc_skb+0x119/0x770 net/core/skbuff.c:193 (UM) 3*128kB (M) 2*256kB (M) 3*512kB (M) 4*1024kB (UM) 3*2048kB (UM) alloc_skb include/linux/skbuff.h:995 [inline] nlmsg_new include/net/netlink.h:511 [inline] __neigh_notify+0x8c/0x160 net/core/neighbour.c:2891 3*4096kB (M) neigh_update_notify net/core/neighbour.c:2302 [inline] neigh_timer_handler+0x6cb/0xdf0 net/core/neighbour.c:998 = 25228kB Node 0 Normal: 1778*4kB call_timer_fn+0x272/0x920 kernel/time/timer.c:1326 (UME) 558*8kB (UME) 100*16kB (UME) 17*32kB (UM) 7*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 14168kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 2566 total pagecache pages 0 pages in swap cache expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682 Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 343323 pages reserved 0 pages cma reserved rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null) rsyslogd cpuset= / mems_allowed=0 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056