CPU: 0 PID: 5225 Comm: rsyslogd Not tainted 4.19.0+ #71
rcu: INFO: rcu_preempt self-detected stall on CPU
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
rcu: 	1-...!: (99 ticks this GP) idle=df2/1/0x4000000000000004 softirq=31929/31929 fqs=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
rcu: 	
 (t=10738 jiffies g=44189 q=14)
rcu: rcu_preempt kthread starved for 10738 jiffies! g44189 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R
  running task    
23016    10      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2826 [inline]
 __schedule+0x8cf/0x21d0 kernel/sched/core.c:3474
 schedule+0xfe/0x460 kernel/sched/core.c:3518
 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1934
 __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
 rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2090
 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
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350
NMI backtrace for cpu 1
 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:dump_stack+0x358/0x39d lib/dump_stack.c:118
Code: 74 0c 48 c7 c7 30 f6 31 89 e8 d1 ee 0e fa 48 83 3d 59 81 7e 01 00 0f 84 63 fe ff ff e8 2e 14 cc f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 1b 14 cc f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
RSP: 0018:ffff8801beb3e7f0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801bd9ac200 RBX: 1ffffffff1263ec6 RCX: 1ffff10037b35959
RDX: 0000000000000000 RSI: ffffffff87b374e2 RDI: 0000000000000293
RBP: ffff8801beb3e898 R08: ffff8801bd9acac8 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801bd9ac200 R12: 1ffff10037d67d06
R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
 dump_header+0x27b/0xf72 mm/oom_kill.c:441
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
 __alloc_pages_slowpath+0x22d4/0x2d70 mm/page_alloc.c:4235
 __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
 __do_cache_alloc mm/slab.c:3356 [inline]
 slab_alloc mm/slab.c:3384 [inline]
 kmem_cache_alloc_trace+0x214/0x750 mm/slab.c:3618
 kmalloc include/linux/slab.h:513 [inline]
 syslog_print kernel/printk/printk.c:1297 [inline]
 do_syslog+0xb9b/0x1690 kernel/printk/printk.c:1465
 kmsg_read+0x8f/0xc0 fs/proc/kmsg.c:40
 proc_reg_read+0x2a3/0x3d0 fs/proc/inode.c:231
 __vfs_read+0x117/0x9b0 fs/read_write.c:416
 vfs_read+0x17f/0x3c0 fs/read_write.c:452
 ksys_read+0x101/0x260 fs/read_write.c:578
 __do_sys_read fs/read_write.c:588 [inline]
 __se_sys_read fs/read_write.c:586 [inline]
 __x64_sys_read+0x73/0xb0 fs/read_write.c:586
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f88dd4451fd
Code: Bad RIP value.
RSP: 002b:00007f88da9e4e30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 000000000172f650 RCX: 00007f88dd4451fd
RDX: 0000000000000fff RSI: 00007f88dc2195a0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 000000000171a260 R09: 0000000000000000
R10: 6b205d3030323734 R11: 0000000000000293 R12: 000000000065e420
R13: 00007f88da9e59c0 R14: 00007f88dda8a040 R15: 0000000000000003
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 18684 Comm: syz-executor0 Not tainted 4.19.0+ #71
Mem-Info:
active_anon:45072 inactive_anon:112 isolated_anon:0
 active_file:13 inactive_file:15 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9478 slab_unreclaimable:1479054
 mapped:49154 shmem:119 pagetables:662 bounce:0
 free:13765 free_pcp:108 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:180288kB inactive_anon:448kB active_file:52kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:476kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 165888kB 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 2820
 6323
 6323
 nmi_cpu_backtrace.cold.1+0x5c/0xa1 lib/nmi_backtrace.c:101
Node 0 
 nmi_trigger_cpumask_backtrace+0x1b3/0x1ed lib/nmi_backtrace.c:62
DMA32 free:25276kB 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:2890764kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
lowmem_reserve[]:
 trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline]
 rcu_dump_cpu_stacks+0x16f/0x1bc kernel/rcu/tree.c:1195
 0
 print_cpu_stall.cold.67+0x1f3/0x3c7 kernel/rcu/tree.c:1334
 0 3503
 3503
Node 0 
Normal free:13876kB min:37352kB low:46688kB high:56024kB active_anon:180288kB inactive_anon:448kB active_file:52kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5376kB pagetables:2648kB bounce:0kB free_pcp:432kB local_pcp:176kB free_cma:0kB
lowmem_reserve[]:
 0 0
 0
 0
Node 0 
DMA: 
1*4kB 
 check_cpu_stall kernel/rcu/tree.c:1408 [inline]
 rcu_pending kernel/rcu/tree.c:2961 [inline]
 rcu_check_callbacks+0xf3b/0x13f0 kernel/rcu/tree.c:2506
(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: 
3*4kB 
(M) 
0*8kB 
3*16kB 
(UM) 
4*32kB (MH) 
4*64kB 
(UMH) 
2*128kB 
(M) 
4*256kB 
 update_process_times+0x2d/0x70 kernel/time/timer.c:1636
(M) 
 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
4*512kB 
 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
(MH) 
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460
3*1024kB 
(MH) 
3*2048kB 
(M) 
3*4096kB 
(M) 
= 25276kB
Node 0 
Normal: 
1035*4kB 
(UMEH) 
493*8kB 
 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518
(UME) 
 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
178*16kB 
(UME) 
60*32kB 
(UME) 
0*64kB 
0*128kB 
0*256kB 
0*512kB 
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:801
1*1024kB 
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
(U) 
Code: 40 7e 0f 85 32 ff ff ff e8 55 90 3e ff e9 28 ff ff ff e8 ec c1 c3 ff 48 83 3d c4 0a 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 12 5d
0*2048kB 
RSP: 0018:ffff8801daf07450 EFLAGS: 00000286
0*4096kB = 13876kB
 ORIG_RAX: ffffffffffffff13
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff10037982549
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffff8801daf074c0 R08: ffff8801bcc12a48 R09: 0000000000000002
147 total pagecache pages
R10: 0000000000000000 R11: ffff8801bcc12180 R12: ffff8801d9a05040
R13: ffff8801d9a05040 R14: 0000000000000000 R15: 0000000000000286
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342292 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)
 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
rsyslogd cpuset=
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
/
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 mems_allowed=0
 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 b6 70 3e ff e9 c5 fe ff ff e8 4d a2 c3 ff 48 83 3d 25 eb 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 12 5d
RSP: 0018:ffff8801c0587740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801bcc12a00 RDI: 0000000000000286
RBP: ffff8801c05877a8 R08: ffff8801bcc12180 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9a05040 R14: ffff8801d9a05040 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+0x4f3/0x1000
CPU: 0 PID: 5225 Comm: rsyslogd Not tainted 4.19.0+ #71
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-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 <IRQ>
syz-executor0 cpuset=
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
syz0
 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_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+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:dump_stack+0x358/0x39d lib/dump_stack.c:118
Code: 74 0c 48 c7 c7 30 f6 31 89 e8 d1 ee 0e fa 48 83 3d 59 81 7e 01 00 0f 84 63 fe ff ff e8 2e 14 cc f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 1b 14 cc f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
RSP: 0018:ffff8801beb3e7f0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801bd9ac200 RBX: 1ffffffff1263ec6 RCX: 1ffff10037b35959
RDX: 0000000000000000 RSI: ffffffff87b374e2 RDI: 0000000000000293
RBP: ffff8801beb3e898 R08: ffff8801bd9acac8 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801bd9ac200 R12: 1ffff10037d67d06
R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
 dump_header+0x27b/0xf72 mm/oom_kill.c:441
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
 __alloc_pages_slowpath+0x22d4/0x2d70 mm/page_alloc.c:4235
 __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
 __do_cache_alloc mm/slab.c:3356 [inline]
 slab_alloc mm/slab.c:3384 [inline]
 kmem_cache_alloc_trace+0x214/0x750 mm/slab.c:3618
 kmalloc include/linux/slab.h:513 [inline]
 syslog_print kernel/printk/printk.c:1297 [inline]
 do_syslog+0xb9b/0x1690 kernel/printk/printk.c:1465
 kmsg_read+0x8f/0xc0 fs/proc/kmsg.c:40
 proc_reg_read+0x2a3/0x3d0 fs/proc/inode.c:231
 __vfs_read+0x117/0x9b0 fs/read_write.c:416
 vfs_read+0x17f/0x3c0 fs/read_write.c:452
 ksys_read+0x101/0x260 fs/read_write.c:578
 __do_sys_read fs/read_write.c:588 [inline]
 __se_sys_read fs/read_write.c:586 [inline]
 __x64_sys_read+0x73/0xb0 fs/read_write.c:586
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f88dd4451fd
Code: Bad RIP value.
RSP: 002b:00007f88da9e4e30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 000000000172f650 RCX: 00007f88dd4451fd
RDX: 0000000000000fff RSI: 00007f88dc2195a0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 000000000171a260 R09: 0000000000000000
R10: 6b205d3030323734 R11: 0000000000000293 R12: 000000000065e420
R13: 00007f88da9e59c0 R14: 00007f88dda8a040 R15: 0000000000000003
CPU: 1 PID: 18684 Comm: syz-executor0 Not tainted 4.19.0+ #71
Mem-Info:
active_anon:45072 inactive_anon:112 isolated_anon:0
 active_file:13 inactive_file:15 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9478 slab_unreclaimable:1479054
 mapped:49154 shmem:119 pagetables:662 bounce:0
 free:13765 free_pcp:108 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
Node 0 active_anon:180288kB inactive_anon:448kB active_file:52kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:476kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 165888kB 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[]: 0
 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426
 2820 6323
 6323
Node 0 
DMA32 free:25276kB 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:2890764kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]:
 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297
 0 0
 3503
 3503
Node 0 
Normal free:13876kB min:37352kB low:46688kB high:56024kB active_anon:180288kB inactive_anon:448kB active_file:52kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5376kB pagetables:2648kB bounce:0kB free_pcp:432kB local_pcp:176kB 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) 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
3*4096kB 
(M) 
= 15908kB
Node 0 
DMA32: 
3*4kB 
(M) 0*8kB 
 __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
3*16kB 
(UM) 
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
4*32kB 
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
(MH) 
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
4*64kB 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
(UMH) 
2*128kB 
(M) 
4*256kB (M) 
4*512kB 
(MH) 
3*1024kB 
(MH) 
 alloc_skb include/linux/skbuff.h:997 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
3*2048kB (M) 
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
3*4096kB (M) 
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
= 25276kB
Node 0 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
Normal: 
1035*4kB 
(UMEH) 
493*8kB (UME) 
178*16kB (UME) 
60*32kB 
(UME) 
0*64kB 0*128kB 
0*256kB 
0*512kB 
1*1024kB 
(U) 
0*2048kB 
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
0*4096kB 
= 13876kB
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
147 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
342292 pages reserved
0 pages cma reserved
rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
rsyslogd cpuset=
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
/
 mems_allowed=0
 __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 b6 70 3e ff e9 c5 fe ff ff e8 4d a2 c3 ff 48 83 3d 25 eb 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 12 5d
RSP: 0018:ffff8801c0587740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801bcc12a00 RDI: 0000000000000286
RBP: ffff8801c05877a8 R08: ffff8801bcc12180 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9a05040 R14: ffff8801d9a05040 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+0x4f3/0x1000
CPU: 0 PID: 5225 Comm: rsyslogd Not tainted 4.19.0+ #71
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:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
syz-executor0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426
syz-executor0 cpuset=
syz0
 mems_allowed=0
 __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_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+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:dump_stack+0x358/0x39d lib/dump_stack.c:118
Code: 74 0c 48 c7 c7 30 f6 31 89 e8 d1 ee 0e fa 48 83 3d 59 81 7e 01 00 0f 84 63 fe ff ff e8 2e 14 cc f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 1b 14 cc f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
RSP: 0018:ffff8801beb3e7f0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801bd9ac200 RBX: 1ffffffff1263ec6 RCX: 1ffff10037b35959
RDX: 0000000000000000 RSI: ffffffff87b374e2 RDI: 0000000000000293
RBP: ffff8801beb3e898 R08: ffff8801bd9acac8 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801bd9ac200 R12: 1ffff10037d67d06
R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
 dump_header+0x27b/0xf72 mm/oom_kill.c:441
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
 __alloc_pages_slowpath+0x22d4/0x2d70 mm/page_alloc.c:4235
 __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
 __do_cache_alloc mm/slab.c:3356 [inline]
 slab_alloc mm/slab.c:3384 [inline]
 kmem_cache_alloc_trace+0x214/0x750 mm/slab.c:3618
 kmalloc include/linux/slab.h:513 [inline]
 syslog_print kernel/printk/printk.c:1297 [inline]
 do_syslog+0xb9b/0x1690 kernel/printk/printk.c:1465
 kmsg_read+0x8f/0xc0 fs/proc/kmsg.c:40
 proc_reg_read+0x2a3/0x3d0 fs/proc/inode.c:231
 __vfs_read+0x117/0x9b0 fs/read_write.c:416
 vfs_read+0x17f/0x3c0 fs/read_write.c:452
 ksys_read+0x101/0x260 fs/read_write.c:578
 __do_sys_read fs/read_write.c:588 [inline]
 __se_sys_read fs/read_write.c:586 [inline]
 __x64_sys_read+0x73/0xb0 fs/read_write.c:586
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f88dd4451fd
Code: Bad RIP value.
RSP: 002b:00007f88da9e4e30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 000000000172f650 RCX: 00007f88dd4451fd
RDX: 0000000000000fff RSI: 00007f88dc2195a0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 000000000171a260 R09: 0000000000000000
R10: 6b205d3030323734 R11: 0000000000000293 R12: 000000000065e420
R13: 00007f88da9e59c0 R14: 00007f88dda8a040 R15: 0000000000000003
CPU: 1 PID: 18684 Comm: syz-executor0 Not tainted 4.19.0+ #71
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
active_anon:45072 inactive_anon:112 isolated_anon:0
 active_file:13 inactive_file:15 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9478 slab_unreclaimable:1479054
 mapped:49154 shmem:119 pagetables:662 bounce:0
 free:13765 free_pcp:108 free_cma:0
 <IRQ>
Node 0 active_anon:180288kB inactive_anon:448kB active_file:52kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:476kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 165888kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
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
 warn_alloc.cold.117+0xb7/0x1bd mm/page_alloc.c:3426
lowmem_reserve[]:
 0 2820
 6323
 6323
 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297
Node 0 
DMA32 free:25276kB 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:2890764kB 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:13876kB min:37352kB low:46688kB high:56024kB active_anon:180288kB inactive_anon:448kB active_file:52kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5376kB pagetables:2648kB bounce:0kB free_pcp:432kB local_pcp:176kB free_cma:0kB
lowmem_reserve[]:
 0
 0
 0
 0
Node 0 DMA: 
1*4kB 
(U) 
0*8kB 
0*16kB 1*32kB 
(U) 
2*64kB 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
(U) 
1*128kB 
(U) 
1*256kB 
(U) 
0*512kB 1*1024kB 
(U) 
 __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
1*2048kB 
(M) 
 fallback_alloc+0x204/0x2e0 mm/slab.c:3219
3*4096kB 
 ____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
= 15908kB
Node 0 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
DMA32: 
3*4kB 
(M) 
0*8kB 3*16kB 
(UM) 
4*32kB 
(MH) 
4*64kB 
(UMH) 
2*128kB 
 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
(M) 
4*256kB 
(M) 
4*512kB 
 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440
(MH) 
3*1024kB 
(MH) 
 br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253
3*2048kB (M) 
3*4096kB 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
(M) 
= 25276kB
Node 0 
Normal: 
1035*4kB 
(UMEH) 
493*8kB 
(UME) 
178*16kB 
(UME) 
60*32kB 
(UME) 
0*64kB 
0*128kB 0*256kB 
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
0*512kB 
1*1024kB 
(U) 
0*2048kB 0*4096kB 
= 13876kB
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
147 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
342292 pages reserved
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
0 pages cma reserved
rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
rsyslogd cpuset=
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
/
 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 b6 70 3e ff e9 c5 fe ff ff e8 4d a2 c3 ff 48 83 3d 25 eb 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 12 5d
RSP: 0018:ffff8801c0587740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801bcc12a00 RDI: 0000000000000286
RBP: ffff8801c05877a8 R08: ffff8801bcc12180 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9a05040 R14: ffff8801d9a05040 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+0x4f3/0x1000
CPU: 0 PID: 5225 Comm: rsyslogd Not tainted 4.19.0+ #71
syz-executor0: 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-executor0 cpuset=
Call Trace:
syz0
 <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_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+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:dump_stack+0x358/0x39d lib/dump_stack.c:118
Code: 74 0c 48 c7 c7 30 f6 31 89 e8 d1 ee 0e fa 48 83 3d 59 81 7e 01 00 0f 84 63 fe ff ff e8 2e 14 cc f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 1b 14 cc f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
RSP: 0018:ffff8801beb3e7f0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801bd9ac200 RBX: 1ffffffff1263ec6 RCX: 1ffff10037b35959
RDX: 0000000000000000 RSI: ffffffff87b374e2 RDI: 0000000000000293
RBP: ffff8801beb3e898 R08: ffff8801bd9acac8 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801bd9ac200 R12: 1ffff10037d67d06
R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
 dump_header+0x27b/0xf72 mm/oom_kill.c:441
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
 __alloc_pages_slowpath+0x22d4/0x2d70 mm/page_alloc.c:4235
 __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
 __do_cache_alloc mm/slab.c:3356 [inline]
 slab_alloc mm/slab.c:3384 [inline]
 kmem_cache_alloc_trace+0x214/0x750 mm/slab.c:3618
 kmalloc include/linux/slab.h:513 [inline]
 syslog_print kernel/printk/printk.c:1297 [inline]
 do_syslog+0xb9b/0x1690 kernel/printk/printk.c:1465
 kmsg_read+0x8f/0xc0 fs/proc/kmsg.c:40
 proc_reg_read+0x2a3/0x3d0 fs/proc/inode.c:231
 __vfs_read+0x117/0x9b0 fs/read_write.c:416
 vfs_read+0x17f/0x3c0 fs/read_write.c:452
 ksys_read+0x101/0x260 fs/read_write.c:578
 __do_sys_read fs/read_write.c:588 [inline]
 __se_sys_read fs/read_write.c:586 [inline]
 __x64_sys_read+0x73/0xb0 fs/read_write.c:586
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f88dd4451fd
Code: Bad RIP value.
RSP: 002b:00007f88da9e4e30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 000000000172f650 RCX: 00007f88dd4451fd
RDX: 0000000000000fff RSI: 00007f88dc2195a0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 000000000171a260 R09: 0000000000000000
R10: 6b205d3030323734 R11: 0000000000000293 R12: 000000000065e420
R13: 00007f88da9e59c0 R14: 00007f88dda8a040 R15: 0000000000000003
CPU: 1 PID: 18684 Comm: syz-executor0 Not tainted 4.19.0+ #71
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
active_anon:45072 inactive_anon:112 isolated_anon:0
 active_file:13 inactive_file:15 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9478 slab_unreclaimable:1479054
 mapped:49154 shmem:119 pagetables:662 bounce:0
 free:13765 free_pcp:108 free_cma:0
Call Trace:
Node 0 active_anon:180288kB inactive_anon:448kB active_file:52kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:476kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 165888kB 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
 2820
 6323
 6323
Node 0 
 __alloc_pages_slowpath+0x2660/0x2d70 mm/page_alloc.c:4297
DMA32 free:25276kB 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:2890764kB 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:13876kB min:37352kB low:46688kB high:56024kB active_anon:180288kB inactive_anon:448kB active_file:52kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3588076kB mlocked:0kB kernel_stack:5376kB pagetables:2648kB bounce:0kB free_pcp:432kB local_pcp:176kB 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) 
= 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
3*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
0*8kB 
3*16kB 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
(UM) 
4*32kB 
(MH) 
4*64kB (UMH) 
2*128kB (M) 
4*256kB 
(M) 
4*512kB 
 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
(MH) 
3*1024kB 
(MH) 
3*2048kB 
(M) 
 br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440
3*4096kB 
(M) 
= 25276kB
 br_multicast_group_expired+0x1bc/0x610 net/bridge/br_multicast.c:253
Node 0 
Normal: 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
1035*4kB 
(UMEH) 
493*8kB 
(UME) 
178*16kB 
(UME) 
60*32kB 
(UME) 
0*64kB 
0*128kB 
0*256kB 
0*512kB 
1*1024kB 
(U) 
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
0*2048kB 
0*4096kB 
= 13876kB
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
147 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
342292 pages reserved
0 pages cma reserved
rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
rsyslogd cpuset=
/
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 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 b6 70 3e ff e9 c5 fe ff ff e8 4d a2 c3 ff 48 83 3d 25 eb 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 12 5d
RSP: 0018:ffff8801c0587740 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801bcc12a00 RDI: 0000000000000286
RBP: ffff8801c05877a8 R08: ffff8801bcc12180 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000