CPU: 1 PID: 5220 Comm: rsyslogd Not tainted 4.19.0+ #134
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: 	
 <IRQ>
(detected by 0, t=10627 jiffies, g=50005, q=52)
rcu: All QSes seen, last rcu_preempt kthread activity 10627 (4294985082-4294974455), jiffies_till_next_fqs=1, root ->qsmask 0x0
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
syz-executor5   R
  running task    
 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426
17912 10132   5510 0x8010000c
Call Trace:
 <IRQ>
 sched_show_task.cold.81+0x2b6/0x30a kernel/sched/core.c:5297
 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297
 print_other_cpu_stall.cold.66+0x7dd/0x8bb kernel/rcu/tree.c:1286
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 check_cpu_stall kernel/rcu/tree.c:1415 [inline]
 rcu_pending kernel/rcu/tree.c:2961 [inline]
 rcu_check_callbacks+0xfd7/0x13f0 kernel/rcu/tree.c:2506
 __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+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 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:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 update_process_times+0x2d/0x70 kernel/time/timer.c:1636
 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
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1034 [inline]
 smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1059
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [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 92 3e ff e9 28 ff ff ff e8 ac c3 c3 ff 48 83 3d 84 0c 70 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 c2 3b
RSP: 0000:ffff8801dae07268 EFLAGS: 00000286
 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff10039b4994e
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffff8801dae072d8 R08: ffff8801cda4ca70 R09: 0000000000000002
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
R10: 0000000000000000 R11: ffff8801cda4c180 R12: ffff8801d9bd2c80
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
R13: ffff8801d9bd2c80 R14: 0000000000000000 R15: 0000000000000286
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:997 [inline]
 nlmsg_new include/net/netlink.h:654 [inline]
 __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801
 </IRQ>
RIP: 0010:preempt_count_add+0x0/0x1b0 include/linux/rcupdate.h:610
Code: f5 48 c7 c2 40 e2 0a 88 be 61 02 00 00 48 c7 c7 e0 db 0a 88 c6 05 ef f3 98 08 01 e8 de 0c 0c 00 c9 c3 0f 1f 84 00 00 00 00 00 <48> b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 54 41 89 fc 53 48 c7
 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440
RSP: 0000:ffff8801bdb361c0 EFLAGS: 00000246
 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8801d9a36a40 RCX: ffff88019b488c40
 br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff8801bdb36258 R08: ffffed003b346723 R09: ffffed003b346722
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
R10: ffff8801bdb36638 R11: ffff8801d9a33917 R12: 1ffff10037b66c3a
R13: 0000000000000001 R14: ffff88019b488c50 R15: ffff8801bdb36230
 percpu_ref_put include/linux/percpu-refcount.h:301 [inline]
 css_put include/linux/cgroup.h:389 [inline]
 mem_cgroup_iter+0x6e1/0x1160 mm/memcontrol.c:1003
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
 shrink_node+0x516/0x16b0 mm/vmscan.c:2768
 shrink_zones mm/vmscan.c:2974 [inline]
 do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036
 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251
 __perform_reclaim mm/page_alloc.c:3769 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline]
 __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:946
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
 page_cache_read mm/filemap.c:2385 [inline]
 filemap_fault+0x1594/0x25f0 mm/filemap.c:2569
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [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 72 3e ff e9 c5 fe ff ff e8 0d a4 c3 ff 48 83 3d e5 ec 6f 07 00 0f 84 41 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 c2 3b
RSP: 0000:ffff88013ce07740 EFLAGS: 00000286
 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801cda4ca00 RDI: 0000000000000286
RBP: ffff88013ce077a8 R08: ffff8801cda4c180 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9bd2c80 R14: ffff8801d9bd2c80 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259
 __do_fault+0x100/0x6b0 mm/memory.c:2993
 ____bpf_clone_redirect net/core/filter.c:2080 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067
 bpf_prog_bebbfe2050753572+0x141/0x1000
 do_read_fault mm/memory.c:3405 [inline]
 do_fault mm/memory.c:3505 [inline]
 handle_pte_fault mm/memory.c:3736 [inline]
 __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860
 handle_mm_fault+0x54f/0xc70 mm/memory.c:3897
 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline]
 __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
rcu: rcu_preempt kthread starved for 10627 jiffies! g50005 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R
  running task    
22952    10      2 0x80000000
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136
Call Trace:
RIP: 0033:0x7f37615a51fd
 context_switch kernel/sched/core.c:2826 [inline]
 __schedule+0x8cf/0x21d0 kernel/sched/core.c:3474
Code: Bad RIP value.
RSP: 002b:00007f375eb44e30 EFLAGS: 00010293
RAX: 0000000000000fc2 RBX: 0000000001d5c650 RCX: 00007f37615a51fd
RDX: 0000000000000fff RSI: 00007f37603795a0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000001d47260 R09: 0000000000000000
R10: 6b205d3133383638 R11: 0000000000000293 R12: 000000000065e420
R13: 00007f375eb459c0 R14: 00007f3761bea040 R15: 0000000000000003
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
 schedule+0xfe/0x460 kernel/sched/core.c:3518
active_anon:48202 inactive_anon:2339 isolated_anon:0
 active_file:15 inactive_file:11 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8987 slab_unreclaimable:1474273
 mapped:49154 shmem:2346 pagetables:625 bounce:0
 free:13781 free_pcp:75 free_cma:0
Node 0 active_anon:192808kB inactive_anon:9356kB active_file:60kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:9384kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 176128kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
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
lowmem_reserve[]:
 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
 0
 2819 6323
 6323
 rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1934
Node 0 
DMA32 free:25264kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890760kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]:
 0
 0
 3503
 3503
Node 0 
Normal free:13952kB min:37352kB low:46688kB high:56024kB active_anon:192808kB inactive_anon:9356kB active_file:60kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5280kB pagetables:2500kB bounce:0kB free_pcp:300kB local_pcp:52kB 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 
 rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2090
(U) 
1*256kB 
(U) 
0*512kB 
1*1024kB 
(U) 
1*2048kB 
(M) 
3*4096kB 
(M) 
= 15908kB
Node 0 
DMA32: 
4*4kB 
(M) 
2*8kB 
(UM) 
3*16kB (M) 
3*32kB 
(UM) 
2*64kB 
(M) 
3*128kB (UM) 
4*256kB 
(M) 
4*512kB 
(UM) 
3*1024kB 
(UM) 
 kthread+0x35a/0x420 kernel/kthread.c:246
3*2048kB 
(M) 
3*4096kB (M) 
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350
= 25264kB
syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
Node 0 
syz-executor5 cpuset=
Normal: 
syz5
796*4kB 
 mems_allowed=0
(UME) 
CPU: 0 PID: 10132 Comm: syz-executor5 Not tainted 4.19.0+ #134
394*8kB 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
(ME) 
Call Trace:
200*16kB 
 <IRQ>
(ME) 
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
78*32kB 
(UME) 
 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426
14*64kB 
(UM) 
0*128kB 
4*256kB 
(U) 
 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297
0*512kB 
0*1024kB 
0*2048kB 
0*4096kB 
= 13952kB
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
2372 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
342293 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
rsyslogd cpuset=
/
 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+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 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:997 [inline]
 nlmsg_new include/net/netlink.h:654 [inline]
 __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407
 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440
 br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253
 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+0x308/0xb7e kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [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 72 3e ff e9 c5 fe ff ff e8 0d a4 c3 ff 48 83 3d e5 ec 6f 07 00 0f 84 41 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 c2 3b
RSP: 0000:ffff88013ce07740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801cda4ca00 RDI: 0000000000000286
RBP: ffff88013ce077a8 R08: ffff8801cda4c180 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9bd2c80 R14: ffff8801d9bd2c80 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2080 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067
 bpf_prog_bebbfe2050753572+0x141/0x1000
CPU: 1 PID: 5220 Comm: rsyslogd Not tainted 4.19.0+ #134
Mem-Info:
active_anon:48202 inactive_anon:2339 isolated_anon:0
 active_file:15 inactive_file:11 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8987 slab_unreclaimable:1474273
 mapped:49154 shmem:2346 pagetables:625 bounce:0
 free:13781 free_pcp:75 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:192808kB inactive_anon:9356kB active_file:60kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:9384kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 176128kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
 <IRQ>
Node 0 
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
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
lowmem_reserve[]:
 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426
 0 2819
 6323 6323
Node 0 
DMA32 free:25264kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890760kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0
 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297
 0
 3503
 3503
Node 0 
Normal free:13952kB min:37352kB low:46688kB high:56024kB active_anon:192808kB inactive_anon:9356kB active_file:60kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5280kB pagetables:2500kB bounce:0kB free_pcp:300kB local_pcp:248kB 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 
DMA32: 4*4kB 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
(M) 
2*8kB 
(UM) 
3*16kB 
(M) 
3*32kB 
(UM) 2*64kB 
 __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+0xa5/0x8c0 mm/slab.c:2677
(M) 
3*128kB (UM) 
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
4*256kB (M) 
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
4*512kB 
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
(UM) 
3*1024kB (UM) 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
3*2048kB 
(M) 
3*4096kB 
(M) 
= 25264kB
Node 0 
Normal: 
796*4kB 
(UME) 
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
394*8kB 
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
(ME) 
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
200*16kB 
(ME) 78*32kB 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
(UME) 
14*64kB 
(UM) 
0*128kB 
4*256kB 
(U) 
0*512kB 0*1024kB 
0*2048kB 0*4096kB 
= 13952kB
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
2372 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
342293 pages reserved
0 pages cma reserved
syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor5 cpuset=
syz5
 mems_allowed=0
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801
 </IRQ>
RIP: 0010:preempt_count_add+0x0/0x1b0 include/linux/rcupdate.h:610
Code: f5 48 c7 c2 40 e2 0a 88 be 61 02 00 00 48 c7 c7 e0 db 0a 88 c6 05 ef f3 98 08 01 e8 de 0c 0c 00 c9 c3 0f 1f 84 00 00 00 00 00 <48> b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 54 41 89 fc 53 48 c7
RSP: 0000:ffff8801bdb361c0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8801d9a36a40 RCX: ffff88019b488c40
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff8801bdb36258 R08: ffffed003b346723 R09: ffffed003b346722
R10: ffff8801bdb36638 R11: ffff8801d9a33917 R12: 1ffff10037b66c3a
R13: 0000000000000001 R14: ffff88019b488c50 R15: ffff8801bdb36230
 percpu_ref_put include/linux/percpu-refcount.h:301 [inline]
 css_put include/linux/cgroup.h:389 [inline]
 mem_cgroup_iter+0x6e1/0x1160 mm/memcontrol.c:1003
 shrink_node+0x516/0x16b0 mm/vmscan.c:2768
 shrink_zones mm/vmscan.c:2974 [inline]
 do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036
 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251
 __perform_reclaim mm/page_alloc.c:3769 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline]
 __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38c/0x5c0 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:6259
 __do_fault+0x100/0x6b0 mm/memory.c:2993
 do_read_fault mm/memory.c:3405 [inline]
 do_fault mm/memory.c:3505 [inline]
 handle_pte_fault mm/memory.c:3736 [inline]
 __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860
 handle_mm_fault+0x54f/0xc70 mm/memory.c:3897
 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline]
 __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136
RIP: 0033:0x7f37615a51fd
Code: Bad RIP value.
RSP: 002b:00007f375eb44e30 EFLAGS: 00010293
RAX: 0000000000000fc2 RBX: 0000000001d5c650 RCX: 00007f37615a51fd
RDX: 0000000000000fff RSI: 00007f37603795a0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000001d47260 R09: 0000000000000000
R10: 6b205d3133383638 R11: 0000000000000293 R12: 000000000065e420
R13: 00007f375eb459c0 R14: 00007f3761bea040 R15: 0000000000000003
Mem-Info:
CPU: 0 PID: 10132 Comm: syz-executor5 Not tainted 4.19.0+ #134
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
active_anon:48202 inactive_anon:2339 isolated_anon:0
 active_file:15 inactive_file:11 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8987 slab_unreclaimable:1474273
 mapped:49154 shmem:2346 pagetables:625 bounce:0
 free:13781 free_pcp:75 free_cma:0
Call Trace:
Node 0 active_anon:192808kB inactive_anon:9356kB active_file:60kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:9384kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 176128kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
Node 0 
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
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
lowmem_reserve[]:
 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426
 0
 2819
 6323
 6323
Node 0 
 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297
DMA32 free:25264kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890760kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0
 0
 3503 3503
Node 0 
Normal free:13952kB min:37352kB low:46688kB high:56024kB active_anon:192808kB inactive_anon:9356kB active_file:60kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5280kB pagetables:2500kB bounce:0kB free_pcp:300kB local_pcp:52kB 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) 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
1*256kB 
(U) 0*512kB 
1*1024kB 
(U) 
1*2048kB (M) 
3*4096kB (M) 
= 15908kB
 __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+0xa5/0x8c0 mm/slab.c:2677
Node 0 
DMA32: 
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
4*4kB 
 ____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
2*8kB 
(UM) 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
3*16kB 
(M) 
3*32kB 
(UM) 2*64kB 
(M) 
3*128kB 
(UM) 4*256kB 
(M) 
 alloc_skb include/linux/skbuff.h:997 [inline]
 nlmsg_new include/net/netlink.h:654 [inline]
 __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407
4*512kB 
(UM) 
3*1024kB 
(UM) 
3*2048kB 
 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440
(M) 
3*4096kB 
(M) 
 br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253
= 25264kB
Node 0 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
Normal: 
796*4kB 
(UME) 
394*8kB 
(ME) 
200*16kB 
(ME) 
78*32kB 
(UME) 
14*64kB 
(UM) 
0*128kB 
4*256kB (U) 
0*512kB 
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
0*1024kB 
0*2048kB 
0*4096kB 
= 13952kB
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
2372 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
342293 pages reserved
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
rsyslogd cpuset=
/
 mems_allowed=0
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [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 72 3e ff e9 c5 fe ff ff e8 0d a4 c3 ff 48 83 3d e5 ec 6f 07 00 0f 84 41 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 c2 3b
RSP: 0000:ffff88013ce07740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801cda4ca00 RDI: 0000000000000286
RBP: ffff88013ce077a8 R08: ffff8801cda4c180 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9bd2c80 R14: ffff8801d9bd2c80 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2080 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067
 bpf_prog_bebbfe2050753572+0x141/0x1000
CPU: 1 PID: 5220 Comm: rsyslogd Not tainted 4.19.0+ #134
syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
syz-executor5 cpuset=
Call Trace:
syz5
 <IRQ>
 mems_allowed=0
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426
 __alloc_pages_slowpath+0x2660/0x2d70 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+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 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:997 [inline]
 nlmsg_new include/net/netlink.h:654 [inline]
 __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407
 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440
 br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253
 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+0x308/0xb7e kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801
 </IRQ>
RIP: 0010:preempt_count_add+0x0/0x1b0 include/linux/rcupdate.h:610
Code: f5 48 c7 c2 40 e2 0a 88 be 61 02 00 00 48 c7 c7 e0 db 0a 88 c6 05 ef f3 98 08 01 e8 de 0c 0c 00 c9 c3 0f 1f 84 00 00 00 00 00 <48> b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 54 41 89 fc 53 48 c7
RSP: 0000:ffff8801bdb361c0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8801d9a36a40 RCX: ffff88019b488c40
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff8801bdb36258 R08: ffffed003b346723 R09: ffffed003b346722
R10: ffff8801bdb36638 R11: ffff8801d9a33917 R12: 1ffff10037b66c3a
R13: 0000000000000001 R14: ffff88019b488c50 R15: ffff8801bdb36230
 percpu_ref_put include/linux/percpu-refcount.h:301 [inline]
 css_put include/linux/cgroup.h:389 [inline]
 mem_cgroup_iter+0x6e1/0x1160 mm/memcontrol.c:1003
 shrink_node+0x516/0x16b0 mm/vmscan.c:2768
 shrink_zones mm/vmscan.c:2974 [inline]
 do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036
 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251
 __perform_reclaim mm/page_alloc.c:3769 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline]
 __alloc_pages_slowpath+0x9c4/0x2d70 mm/page_alloc.c:4191
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2093
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38c/0x5c0 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:6259
 __do_fault+0x100/0x6b0 mm/memory.c:2993
 do_read_fault mm/memory.c:3405 [inline]
 do_fault mm/memory.c:3505 [inline]
 handle_pte_fault mm/memory.c:3736 [inline]
 __handle_mm_fault+0x307c/0x5920 mm/memory.c:3860
 handle_mm_fault+0x54f/0xc70 mm/memory.c:3897
 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline]
 __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1136
RIP: 0033:0x7f37615a51fd
Code: Bad RIP value.
RSP: 002b:00007f375eb44e30 EFLAGS: 00010293
RAX: 0000000000000fc2 RBX: 0000000001d5c650 RCX: 00007f37615a51fd
RDX: 0000000000000fff RSI: 00007f37603795a0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000001d47260 R09: 0000000000000000
R10: 6b205d3133383638 R11: 0000000000000293 R12: 000000000065e420
R13: 00007f375eb459c0 R14: 00007f3761bea040 R15: 0000000000000003
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 0 PID: 10132 Comm: syz-executor5 Not tainted 4.19.0+ #134
Mem-Info:
active_anon:48202 inactive_anon:2339 isolated_anon:0
 active_file:15 inactive_file:11 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:8987 slab_unreclaimable:1474273
 mapped:49154 shmem:2346 pagetables:625 bounce:0
 free:13781 free_pcp:75 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:192808kB inactive_anon:9356kB active_file:60kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:9384kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 176128kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 
 <IRQ>
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+0x244/0x39d lib/dump_stack.c:113
lowmem_reserve[]:
 0 2819
 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426
 6323
 6323
Node 0 
DMA32 free:25264kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890760kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0
 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297
 0 3503
 3503
Node 0 
Normal free:13952kB min:37352kB low:46688kB high:56024kB active_anon:192808kB inactive_anon:9356kB active_file:60kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5280kB pagetables:2500kB bounce:0kB free_pcp:300kB local_pcp:52kB 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) 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
0*512kB 
1*1024kB 
(U) 
1*2048kB 
(M) 
3*4096kB 
(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+0xa5/0x8c0 mm/slab.c:2677
= 15908kB
Node 0 
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
DMA32: 
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
4*4kB 
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
(M) 
2*8kB 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
(UM) 
3*16kB 
(M) 
3*32kB 
(UM) 
2*64kB 
(M) 
3*128kB 
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
(UM) 
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
4*256kB 
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
(M) 
4*512kB 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
(UM) 
3*1024kB (UM) 
3*2048kB 
(M) 
3*4096kB 
(M) 
= 25264kB
Node 0 
Normal: 
796*4kB 
(UME) 
394*8kB 
(ME) 
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
200*16kB 
(ME) 
78*32kB 
(UME) 
14*64kB (UM) 
0*128kB 4*256kB 
(U) 
0*512kB 
0*1024kB 
0*2048kB 0*4096kB 
= 13952kB
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
2372 total pagecache pages
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342293 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
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [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 72 3e ff e9 c5 fe ff ff e8 0d a4 c3 ff 48 83 3d e5 ec 6f 07 00 0f 84 41 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 c2 3b
RSP: 0000:ffff88013ce07740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801cda4ca00 RDI: 0000000000000286
RBP: ffff88013ce077a8 R08: ffff8801cda4c180 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9bd2c80 R14: ffff8801d9bd2c80 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2080 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2067
 bpf_prog_bebbfe2050753572+0x141/0x1000
CPU: 1 PID: 5220 Comm: rsyslogd Not tainted 4.19.0+ #134
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:
syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 <IRQ>
syz-executor5 cpuset=
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
syz5
 mems_allowed=0
 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426
 __alloc_pages_slowpath+0x2660/0x2d70 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+0xa5/0x8c0 mm/slab.c:2677
 fallback_alloc+0x204/0x2e0 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:997 [inline]
 nlmsg_new include/net/netlink.h:654 [inline]
 __br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407
 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440
 br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253
 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+0x308/0xb7e kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801
 </IRQ>
RIP: 0010:preempt_count_add+0x0/0x1b0 include/linux/rcupdate.h:610
Code: f5 48 c7 c2 40 e2 0a 88 be 61 02 00 00 48 c7 c7 e0 db 0a 88 c6 05 ef f3 98 08 01 e8 de 0c 0c 00 c9 c3 0f 1f 84 00 00 00 00 00 <48> b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 54 41 89 fc 53 48 c7
RSP: 0000:ffff8801bdb361c0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8801d9a36a40 RCX: ffff88019b488c40
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff8801bdb36258 R08: ffffed003b346723 R09: ffffed003b346722