syzbot


INFO: rcu detected stall in run_timer_softirq (2)

Status: closed as dup on 2019/01/02 16:38
Reported-by: syzbot+ee54c7937690fb71721f@syzkaller.appspotmail.com
First crash: 1384d, last: 1305d
Duplicate of (1):
Title Repro Cause bisect Fix bisect Count Last Reported
INFO: rcu detected stall in ndisc_alloc_skb 1 1356d 1276d
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: rcu detected stall in run_timer_softirq 1 1390d 1388d 0/22 closed as invalid on 2018/09/11 09:35
linux-4.14 INFO: rcu detected stall in run_timer_softirq 3 880d 903d 0/1 auto-closed as invalid on 2020/05/30 20:42
linux-4.19 INFO: rcu detected stall in run_timer_softirq 9 789d 894d 0/1 auto-closed as invalid on 2020/08/29 05:43
upstream INFO: rcu detected stall in run_timer_softirq (3) 32 789d 723d 0/22 auto-closed as invalid on 2020/08/30 01:43

Sample crash report:
CPU: 0 PID: 11399 Comm: syz-executor4 Not tainted 4.19.0-rc5+ #258
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:
 <IRQ>
rcu: 	(detected by 1, t=10580 jiffies, g=23981, 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 10558 (4294994170-4294983612), jiffies_till_next_fqs=1, root ->qsmask 0x0
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
syz-executor4   R
  running task    
21064 11390   8555 0x8000000c
Call Trace:
 <IRQ>
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
 sched_show_task.cold.83+0x2b6/0x30a kernel/sched/core.c:5296
 print_other_cpu_stall.cold.79+0xa83/0xba5 kernel/rcu/tree.c:1430
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 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 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]
 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
 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
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460
 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
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
 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 e5 a9 3e ff e9 28 ff ff ff e8 fc 1b c3 ff 48 83 3d bc 66 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 d2 af
RSP: 0000:ffff8801dad07450 EFLAGS: 00000286
 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff10039caa9e9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
RBP: ffff8801dad074c0 R08: ffff8801ce554f48 R09: 0000000000000002
R10: 0000000000000000 R11: ffff8801ce554680 R12: ffff8801d9be7680
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
R13: ffff8801d9be7680 R14: 0000000000000000 R15: 0000000000000286
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
 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
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
 </IRQ>
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
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 46 8a 3e ff e9 c5 fe ff ff e8 5d fc c2 ff 48 83 3d 1d 47 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 d2 af
RSP: 0000:ffff8801ba62f748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801b881aa80 RDI: 0000000000000286
RBP: ffff8801ba62f7b0 R08: ffff8801b881a200 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_3d1649e183dc2cc1+0xcce/0x1000
 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
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
active_anon:122480 inactive_anon:112 isolated_anon:0
 active_file:16 inactive_file:5 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9164 slab_unreclaimable:1399977
 mapped:40962 shmem:118 pagetables:796 bounce:0
 free:13728 free_pcp:0 free_cma:0
Node 0 active_anon:489920kB inactive_anon:448kB active_file:64kB inactive_file:20kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:472kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 471040kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Node 0 
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
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
 </IRQ>
lowmem_reserve[]: 0
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
 2813
Code: 7e 0f 85 cf fe ff ff e8 46 8a 3e ff e9 c5 fe ff ff e8 5d fc c2 ff 48 83 3d 1d 47 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 d2 af
 6317 6317
RSP: 0000:ffff8801866cf748 EFLAGS: 00000286
 ORIG_RAX: ffffffffffffff13
Node 0 
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
DMA32 free:25276kB min:30028kB low:37532kB high:45036kB active_anon:12288kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2884608kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
RDX: 0000000000000000 RSI: ffff8801ce554f00 RDI: 0000000000000286
lowmem_reserve[]:
RBP: ffff8801866cf7b0 R08: ffff8801ce554680 R09: 0000000000000000
 0
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
 0
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 3503
 3503
Node 0 
Normal free:13728kB min:37384kB low:46728kB high:56072kB active_anon:477632kB inactive_anon:448kB active_file:64kB inactive_file:120kB unevictable:0kB writepending:0kB present:4718592kB managed:3587276kB mlocked:0kB kernel_stack:5408kB pagetables:3184kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0
 0
 0
 0
Node 0 
DMA: 
1*4kB 
(U) 
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
0*8kB 
0*16kB 
 bpf_prog_3d1649e183dc2cc1+0x379/0x1000
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: 
5*4kB 
(UM) 
1*8kB 
(U) 
4*16kB 
(UM) 
3*32kB (UM) 
4*64kB 
(M) 
4*128kB 
(UM) 
3*256kB (M) 
4*512kB 
(UM) 
3*1024kB 
(UM) 3*2048kB 
(UM) 
3*4096kB (M) 
= 25276kB
Node 0 
rcu: rcu_preempt kthread starved for 10558 jiffies! g23981 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
Normal: 
rcu: RCU grace-period kthread stack dump:
1058*4kB 
rcu_preempt     R
(UMEH) 417*8kB 
  running task    
(UMEH) 179*16kB 
22872    10      2 0x80000000
(UME) 63*32kB 
Call Trace:
(UMEH) 
 context_switch kernel/sched/core.c:2825 [inline]
 __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473
21*64kB (UMH) 
2*128kB (MH) 
0*256kB 0*512kB 
0*1024kB 0*2048kB 
0*4096kB 
= 14048kB
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
164 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
 schedule+0xfe/0x460 kernel/sched/core.c:3517
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
344031 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
syz-executor4 cpuset=
syz4
 mems_allowed=0
CPU: 0 PID: 11399 Comm: syz-executor4 Not tainted 4.19.0-rc5+ #258
 rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194
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+0x1c4/0x2b4 lib/dump_stack.c:113
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 __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]
 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
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor4 cpuset=
syz4
 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+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
 </IRQ>
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 46 8a 3e ff e9 c5 fe ff ff e8 5d fc c2 ff 48 83 3d 1d 47 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 d2 af
RSP: 0000:ffff8801ba62f748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801b881aa80 RDI: 0000000000000286
RBP: ffff8801ba62f7b0 R08: ffff8801b881a200 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_3d1649e183dc2cc1+0xcce/0x1000
CPU: 1 PID: 11390 Comm: syz-executor4 Not tainted 4.19.0-rc5+ #258
Mem-Info:
active_anon:122480 inactive_anon:112 isolated_anon:0
 active_file:16 inactive_file:5 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9164 slab_unreclaimable:1399977
 mapped:40962 shmem:118 pagetables:796 bounce:0
 free:13728 free_pcp:0 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:489920kB inactive_anon:448kB active_file:64kB inactive_file:20kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:472kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 471040kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
 <IRQ>
Node 0 
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 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.119+0xb7/0x1bd mm/page_alloc.c:3426
 0
 2813
 6317
 6317
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
Node 0 
DMA32 free:25276kB min:30028kB low:37532kB high:45036kB active_anon:12288kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2884608kB 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:13728kB min:37384kB low:46728kB high:56072kB active_anon:477632kB inactive_anon:448kB active_file:64kB inactive_file:120kB unevictable:0kB writepending:0kB present:4718592kB managed:3587276kB mlocked:0kB kernel_stack:5408kB pagetables:3184kB bounce:0kB free_pcp:0kB 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) 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
3*4096kB 
(M) 
= 15908kB
Node 0 
DMA32: 
5*4kB 
(UM) 
1*8kB (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+0x91/0x8c0 mm/slab.c:2677
4*16kB 
(UM) 
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
3*32kB 
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
(UM) 4*64kB 
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
(M) 
4*128kB (UM) 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
3*256kB (M) 
4*512kB (UM) 
3*1024kB 
(UM) 
3*2048kB (UM) 
3*4096kB (M) 
= 25276kB
Node 0 
Normal: 
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
1058*4kB 
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
(UMEH) 
 addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
417*8kB 
(UMEH) 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
179*16kB 
(UME) 
63*32kB (UMEH) 
21*64kB 
(UMH) 
2*128kB (MH) 
0*256kB 0*512kB 
0*1024kB 
0*2048kB 
0*4096kB 
= 14048kB
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
164 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
344031 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor4 cpuset=
syz4
 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
 </IRQ>
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 46 8a 3e ff e9 c5 fe ff ff e8 5d fc c2 ff 48 83 3d 1d 47 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 d2 af
RSP: 0000:ffff8801866cf748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801ce554f00 RDI: 0000000000000286
RBP: ffff8801866cf7b0 R08: ffff8801ce554680 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_3d1649e183dc2cc1+0x379/0x1000
CPU: 0 PID: 11399 Comm: syz-executor4 Not tainted 4.19.0-rc5+ #258
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+0x1c4/0x2b4 lib/dump_stack.c:113
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor4 cpuset=
syz4
 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]
 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
 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
 </IRQ>
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 46 8a 3e ff e9 c5 fe ff ff e8 5d fc c2 ff 48 83 3d 1d 47 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 d2 af
RSP: 0000:ffff8801ba62f748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801b881aa80 RDI: 0000000000000286
RBP: ffff8801ba62f7b0 R08: ffff8801b881a200 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_3d1649e183dc2cc1+0xcce/0x1000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 11390 Comm: syz-executor4 Not tainted 4.19.0-rc5+ #258
Mem-Info:
active_anon:122480 inactive_anon:112 isolated_anon:0
 active_file:16 inactive_file:5 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9164 slab_unreclaimable:1399977
 mapped:40962 shmem:118 pagetables:796 bounce:0
 free:13728 free_pcp:0 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:489920kB inactive_anon:448kB active_file:64kB inactive_file:20kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:472kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 471040kB 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+0x1c4/0x2b4 lib/dump_stack.c:113
lowmem_reserve[]:
 0 2813
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 6317
 6317
Node 0 
DMA32 free:25276kB min:30028kB low:37532kB high:45036kB active_anon:12288kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2884608kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
lowmem_reserve[]:
 0
 0 3503
 3503
Node 0 
Normal free:13728kB min:37384kB low:46728kB high:56072kB active_anon:477632kB inactive_anon:448kB active_file:64kB inactive_file:120kB unevictable:0kB writepending:0kB present:4718592kB managed:3587276kB mlocked:0kB kernel_stack:5408kB pagetables:3184kB bounce:0kB free_pcp:0kB 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: 
5*4kB 
(UM) 
1*8kB 
(U) 
4*16kB (UM) 
 __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*32kB 
(UM) 
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
4*64kB 
 ____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
4*128kB 
(UM) 3*256kB 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
(M) 
4*512kB 
(UM) 
3*1024kB 
(UM) 
3*2048kB 
(UM) 
3*4096kB (M) 
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
= 25276kB
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
Node 0 
 addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
Normal: 1058*4kB 
(UMEH) 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
417*8kB 
(UMEH) 
179*16kB 
(UME) 
63*32kB (UMEH) 
21*64kB 
(UMH) 
2*128kB 
(MH) 
0*256kB 
0*512kB 
0*1024kB 0*2048kB 
0*4096kB = 14048kB
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
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
164 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
344031 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor4 cpuset=
syz4
 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
 </IRQ>
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 46 8a 3e ff e9 c5 fe ff ff e8 5d fc c2 ff 48 83 3d 1d 47 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 d2 af
RSP: 0000:ffff8801866cf748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801ce554f00 RDI: 0000000000000286
RBP: ffff8801866cf7b0 R08: ffff8801ce554680 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_3d1649e183dc2cc1+0x379/0x1000
CPU: 0 PID: 11399 Comm: syz-executor4 Not tainted 4.19.0-rc5+ #258
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+0x1c4/0x2b4 lib/dump_stack.c:113
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
syz-executor4 cpuset=
syz4
 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]
 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
 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
 </IRQ>
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 46 8a 3e ff e9 c5 fe ff ff e8 5d fc c2 ff 48 83 3d 1d 47 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 d2 af
RSP: 0000:ffff8801ba62f748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801b881aa80 RDI: 0000000000000286
RBP: ffff8801ba62f7b0 R08: ffff8801b881a200 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_3d1649e183dc2cc1+0xcce/0x1000
CPU: 1 PID: 11390 Comm: syz-executor4 Not tainted 4.19.0-rc5+ #258
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:122480 inactive_anon:112 isolated_anon:0
 active_file:16 inactive_file:5 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9164 slab_unreclaimable:1399977
 mapped:40962 shmem:118 pagetables:796 bounce:0
 free:13728 free_pcp:0 free_cma:0
Call Trace:
Node 0 active_anon:489920kB inactive_anon:448kB active_file:64kB inactive_file:20kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:472kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 471040kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 <IRQ>
Node 0 
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 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.119+0xb7/0x1bd mm/page_alloc.c:3426
 0 2813
 6317 6317
Node 0 
DMA32 free:25276kB min:30028kB low:37532kB high:45036kB active_anon:12288kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2884608kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB 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:13728kB min:37384kB low:46728kB high:56072kB active_anon:477632kB inactive_anon:448kB active_file:64kB inactive_file:120kB unevictable:0kB writepending:0kB present:4718592kB managed:3587276kB mlocked:0kB kernel_stack:5408kB pagetables:3184kB bounce:0kB free_pcp:0kB 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 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
(M) 
= 15908kB
Node 0 
DMA32: 
5*4kB 
(UM) 
1*8kB 
(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+0x91/0x8c0 mm/slab.c:2677
4*16kB (UM) 
3*32kB 
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
(UM) 
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
4*64kB (M) 
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
4*128kB (UM) 
3*256kB 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
(M) 
4*512kB (UM) 
3*1024kB 
(UM) 
3*2048kB 
(UM) 
3*4096kB 
(M) 
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
= 25276kB
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
Node 0 
 addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
Normal: 
1058*4kB 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
(UMEH) 
417*8kB (UMEH) 
179*16kB 
(UME) 
63*32kB 
(UMEH) 
21*64kB (UMH) 
2*128kB (MH) 
0*256kB 
0*512kB 
0*1024kB 
0*2048kB 
0*4096kB 
= 14048kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
164 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
344031 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor4 cpuset=
syz4
 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
 </IRQ>
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 46 8a 3e ff e9 c5 fe ff ff e8 5d fc c2 ff 48 83 3d 1d 47 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 d2 af
RSP: 0000:ffff8801866cf748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801ce554f00 RDI: 0000000000000286
RBP: ffff8801866cf7b0 R08: ffff8801ce554680 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_3d1649e183dc2cc1+0x379/0x1000
CPU: 0 PID: 11399 Comm: syz-executor4 Not tainted 4.19.0-rc5+ #258
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+0x1c4/0x2b4 lib/dump_stack.c:113
syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
syz-executor4 cpuset=
syz4
 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]
 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
 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
 </IRQ>
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 46 8a 3e ff e9 c5 fe ff ff e8 5d fc c2 ff 48 83 3d 1d 47 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 d2 af
RSP: 0000:ffff8801ba62f748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801b881aa80 RDI: 0000000000000286
RBP: ffff8801ba62f7b0 R08: ffff8801b881a200 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be7680 R14: ffff8801d9be7680 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_3d1649e183dc2cc1+0xcce/0x1000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 11390 Comm: syz-executor4 Not tainted 4.19.0-rc5+ #258
Mem-Info:
active_anon:122480 inactive_anon:112 isolated_anon:0

Crashes (27):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2018/09/28 17:27 upstream ad0371482b1e 137d7c66 .config log report
ci-upstream-bpf-kasan-gce 2018/11/17 07:30 bpf 569a933b03f3 b08ee62a .config log report
ci-upstream-bpf-kasan-gce 2018/11/13 02:31 bpf da85d8bfd151 74dbb806 .config log report
ci-upstream-bpf-kasan-gce 2018/10/30 05:44 bpf d8fd9e106fbc 2f1090da .config log report
ci-upstream-bpf-kasan-gce 2018/10/27 10:19 bpf d8fd9e106fbc a8292de9 .config log report
ci-upstream-bpf-kasan-gce 2018/10/26 16:24 bpf ede95a63b5e8 a8292de9 .config log report
ci-upstream-bpf-kasan-gce 2018/10/26 01:54 bpf 4a6998aff82a a8292de9 .config log report
ci-upstream-bpf-kasan-gce 2018/10/24 03:49 bpf 23469de647c4 a8292de9 .config log report
ci-upstream-bpf-next-kasan-gce 2018/12/03 00:08 bpf-next 5482e9a93c83 7dcaeaf3 .config log report
ci-upstream-bpf-next-kasan-gce 2018/11/19 04:26 bpf-next 592ee43faf86 adf636a8 .config log report
ci-upstream-bpf-next-kasan-gce 2018/11/15 22:53 bpf-next 407be8d03e20 3a41052e .config log report
ci-upstream-bpf-next-kasan-gce 2018/11/14 21:22 bpf-next 407be8d03e20 5f5f6d14 .config log report
ci-upstream-bpf-next-kasan-gce 2018/11/09 06:33 bpf-next bce6a14996f9 8fd01d3a .config log report
ci-upstream-bpf-next-kasan-gce 2018/11/05 20:21 bpf-next 44adbac8f721 8bd6bd63 .config log report
ci-upstream-bpf-next-kasan-gce 2018/11/05 04:00 bpf-next 44adbac8f721 8bd6bd63 .config log report
ci-upstream-bpf-next-kasan-gce 2018/11/04 22:58 bpf-next 44adbac8f721 8bd6bd63 .config log report
ci-upstream-bpf-next-kasan-gce 2018/11/04 01:25 bpf-next 44adbac8f721 8bd6bd63 .config log report
ci-upstream-bpf-next-kasan-gce 2018/11/02 05:36 bpf-next 44adbac8f721 1f38e9ae .config log report
ci-upstream-bpf-next-kasan-gce 2018/11/01 12:23 bpf-next 44adbac8f721 1f38e9ae .config log report
ci-upstream-net-kasan-gce 2018/11/01 04:52 net-next 4b42745211af 1f38e9ae .config log report
ci-upstream-bpf-next-kasan-gce 2018/10/31 23:16 bpf-next 44adbac8f721 89781090 .config log report
ci-upstream-bpf-next-kasan-gce 2018/10/31 18:32 bpf-next 44adbac8f721 89781090 .config log report
ci-upstream-bpf-next-kasan-gce 2018/10/27 15:46 bpf-next 44adbac8f721 8efba39a .config log report
ci-upstream-bpf-next-kasan-gce 2018/10/26 07:56 bpf-next 44adbac8f721 a8292de9 .config log report
ci-upstream-bpf-next-kasan-gce 2018/10/17 16:01 bpf-next 44d520eb17cd 1ba7fd7e .config log report
ci-upstream-bpf-next-kasan-gce 2018/09/16 19:32 bpf-next 70e88c758a6b a343a400 .config log report
ci-upstream-bpf-next-kasan-gce 2018/09/14 13:17 bpf-next 1edb6e035eb7 a343a400 .config log report