syzbot


INFO: rcu detected stall in vprintk_emit (2)

Status: closed as invalid on 2018/09/11 05:37
Reported-by: syzbot+f8fa79b458bcae4d913d@syzkaller.appspotmail.com
First crash: 1399d, last: 1393d
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-44 INFO: rcu detected stall in vprintk_emit 1 1398d 1398d 0/2 auto-closed as invalid on 2019/03/04 14:11
upstream INFO: rcu detected stall in vprintk_emit syz 2 1463d 1469d 9/22 fixed on 2018/08/07 13:43
android-49 INFO: rcu detected stall in vprintk_emit C 1 1417d 1177d 0/3 public: reported C repro on 2019/04/14 08:51

Sample crash report:
CPU: 1 PID: 5361 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #51
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:
rcu: 	0-...!: (1 GPs behind) idle=0a2/1/0x4000000000000004 softirq=15026/15027 fqs=0 
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
 warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
rcu: 	
 (t=10529 jiffies g=19053 q=4)
rcu: rcu_preempt kthread starved for 10529 jiffies! g19053 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R
  running task    22872    10      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2825 [inline]
 __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473
 schedule+0xfe/0x460 kernel/sched/core.c:3517
 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194
 __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
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
NMI backtrace for cpu 0
 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:console_unlock+0x1017/0x11a0 kernel/printk/printk.c:2411
Code: c1 e8 03 42 80 3c 20 00 0f 85 8d 01 00 00 48 83 3d 25 98 ed 07 00 0f 84 78 01 00 00 e8 a2 3d 1a 00 48 8b bd c0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 68 f9 ff ff e8 ba a0 5d 00 e9 08 f4 ff ff e8 80
RSP: 0000:ffff8801d91ad4d0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801d9156600 RBX: 0000000000000200 RCX: 1ffff1003b22adde
RDX: 0000000000000000 RSI: ffffffff8164918e RDI: 0000000000000293
RBP: ffff8801d91ad630 R08: ffff8801d9156ef0 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d9156600 R12: dffffc0000000000
R13: ffffffff848d86c0 R14: ffffffff89b9bd50 R15: dffffc0000000000
 vprintk_emit+0x33d/0x930 kernel/printk/printk.c:1926
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1967
 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398
 printk+0xa7/0xcf kernel/printk/printk.c:2000
 show_migration_types mm/page_alloc.c:4841 [inline]
 show_free_areas.cold.119+0x1f34/0x215d mm/page_alloc.c:5031
 show_mem+0x34/0x17b lib/show_mem.c:18
 dump_header+0x2f1/0xf72 mm/oom_kill.c:445
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952
 out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112
 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
 __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946
 page_cache_read mm/filemap.c:2385 [inline]
 filemap_fault+0x1594/0x25f0 mm/filemap.c:2569
 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6257
 __do_fault+0x100/0x6b0 mm/memory.c:3240
 do_read_fault mm/memory.c:3652 [inline]
 do_fault mm/memory.c:3752 [inline]
 handle_pte_fault mm/memory.c:3983 [inline]
 __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107
 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144
 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161
RIP: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c42001fea0 EFLAGS: 00010206
RAX: ffffffffffffff92 RBX: 00000000180b7f55 RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014947a0
RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001fed8 R11: 0000000000000206 R12: 0000000000000001
R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424604d10
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 0 PID: 10624 Comm: syz-executor5 Not tainted 4.19.0-rc2+ #51
Mem-Info:
active_anon:42560 inactive_anon:2059 isolated_anon:0
 active_file:17 inactive_file:16 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9617 slab_unreclaimable:1462393
 mapped:57539 shmem:5176 pagetables:765 bounce:0
 free:13793 free_pcp:231 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
Node 0 active_anon:170240kB inactive_anon:8236kB active_file:68kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:230156kB dirty:0kB writeback:0kB shmem:20704kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 145408kB 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[]:
 0
 2817
 nmi_cpu_backtrace.cold.3+0x63/0xa2 lib/nmi_backtrace.c:101
 6321 6321
Node 0 
 nmi_trigger_cpumask_backtrace+0x1b3/0x1ed lib/nmi_backtrace.c:62
DMA32 free:25248kB min:30048kB low:37560kB high:45072kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2889304kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
lowmem_reserve[]: 0
 trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline]
 rcu_dump_cpu_stacks+0x175/0x1c2 kernel/rcu/tree.c:1340
 0
 3503
 print_cpu_stall.cold.78+0x2d3/0x524 kernel/rcu/tree.c:1478
 3503
Node 0 
Normal free:14016kB min:37364kB low:46704kB high:56044kB active_anon:170240kB inactive_anon:8236kB active_file:68kB inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB managed:3587728kB mlocked:0kB kernel_stack:5600kB pagetables:3060kB bounce:0kB free_pcp:676kB local_pcp:312kB free_cma:0kB
lowmem_reserve[]: 0
 0 0
 0
Node 0 
DMA: 
1*4kB 
(U) 
0*8kB 
 check_cpu_stall kernel/rcu/tree.c:1550 [inline]
 __rcu_pending kernel/rcu/tree.c:3276 [inline]
 rcu_pending kernel/rcu/tree.c:3319 [inline]
 rcu_check_callbacks+0xfd9/0x1990 kernel/rcu/tree.c:2665
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: 2*4kB 
(M) 
1*8kB (U) 
3*16kB 
(M) 
1*32kB 
(M) 
3*64kB (UM) 
3*128kB (M) 
2*256kB 
(M) 
3*512kB (M) 
4*1024kB 
(UM) 
3*2048kB 
(UM) 
3*4096kB 
(M) 
= 25248kB
 update_process_times+0x2d/0x70 kernel/time/timer.c:1636
Node 0 
 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
Normal: 
 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
1064*4kB 
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460
(MEH) 
487*8kB 
(UMEH) 
178*16kB 
(MEH) 
42*32kB (UMEH) 
11*64kB 
(M) 
4*128kB 
(H) 
2*256kB (H) 
 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518
0*512kB 0*1024kB 
 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
0*2048kB 0*4096kB 
= 14072kB
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
5209 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
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
0 pages HighMem/MovableOnly
342744 pages reserved
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
0 pages cma reserved
Code: 40 7e 0f 85 32 ff ff ff e8 a5 c3 3e ff e9 28 ff ff ff e8 bc 20 c3 ff 48 83 3d 5c 6f 90 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 9a 42
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
RSP: 0018:ffff8801dae07450 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff10033b26599
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282
RBP: ffff8801dae074c0 R08: ffff88019d932cc8 R09: 0000000000000002
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
R10: 0000000000000000 R11: ffff88019d932400 R12: ffff8801d9be8800
syz-fuzzer cpuset=
R13: ffff8801d9be8800 R14: 0000000000000000 R15: 0000000000000282
/
 mems_allowed=0
 __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 06 a4 3e ff e9 c5 fe ff ff e8 1d 01 c3 ff 48 83 3d bd 4f 90 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 9a 42
RSP: 0018:ffff880198def748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88019d932c80 RDI: 0000000000000282
RBP: ffff880198def7b0 R08: ffff88019d932400 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be8800 R14: ffff8801d9be8800 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1283
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_a2323609a0d1adb1+0x380/0x1000
CPU: 1 PID: 5361 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #51
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-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 warn_alloc.cold.118+0xb7/0x1bd mm/page_alloc.c:3426
syz-executor5 cpuset=
syz5
 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:console_unlock+0x1017/0x11a0 kernel/printk/printk.c:2411
Code: c1 e8 03 42 80 3c 20 00 0f 85 8d 01 00 00 48 83 3d 25 98 ed 07 00 0f 84 78 01 00 00 e8 a2 3d 1a 00 48 8b bd c0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 68 f9 ff ff e8 ba a0 5d 00 e9 08 f4 ff ff e8 80
RSP: 0000:ffff8801d91ad4d0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801d9156600 RBX: 0000000000000200 RCX: 1ffff1003b22adde
RDX: 0000000000000000 RSI: ffffffff8164918e RDI: 0000000000000293
RBP: ffff8801d91ad630 R08: ffff8801d9156ef0 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d9156600 R12: dffffc0000000000
R13: ffffffff848d86c0 R14: ffffffff89b9bd50 R15: dffffc0000000000
 vprintk_emit+0x33d/0x930 kernel/printk/printk.c:1926
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1967
 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398
 printk+0xa7/0xcf kernel/printk/printk.c:2000
 show_migration_types mm/page_alloc.c:4841 [inline]
 show_free_areas.cold.119+0x1f34/0x215d mm/page_alloc.c:5031
 show_mem+0x34/0x17b lib/show_mem.c:18
 dump_header+0x2f1/0xf72 mm/oom_kill.c:445
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952
 out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112
 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
 __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946
 page_cache_read mm/filemap.c:2385 [inline]
 filemap_fault+0x1594/0x25f0 mm/filemap.c:2569
 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6257
 __do_fault+0x100/0x6b0 mm/memory.c:3240
 do_read_fault mm/memory.c:3652 [inline]
 do_fault mm/memory.c:3752 [inline]
 handle_pte_fault mm/memory.c:3983 [inline]
 __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107
 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144
 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161
RIP: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c42001fea0 EFLAGS: 00010206
RAX: ffffffffffffff92 RBX: 00000000180b7f55 RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014947a0
RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001fed8 R11: 0000000000000206 R12: 0000000000000001
R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424604d10
CPU: 0 PID: 10624 Comm: syz-executor5 Not tainted 4.19.0-rc2+ #51
Mem-Info:
active_anon:42560 inactive_anon:2059 isolated_anon:0
 active_file:17 inactive_file:16 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9617 slab_unreclaimable:1462393
 mapped:57539 shmem:5176 pagetables:765 bounce:0
 free:13793 free_pcp:231 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
Node 0 active_anon:170240kB inactive_anon:8236kB active_file:68kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:230156kB dirty:0kB writeback:0kB shmem:20704kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 145408kB 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.118+0xb7/0x1bd mm/page_alloc.c:3426
 0
 2817 6321
 6321
Node 0 
DMA32 free:25248kB min:30048kB low:37560kB high:45072kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2889304kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB 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:14016kB min:37364kB low:46704kB high:56044kB active_anon:170240kB inactive_anon:8236kB active_file:68kB inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB managed:3587728kB mlocked:0kB kernel_stack:5600kB pagetables:3060kB bounce:0kB free_pcp:676kB local_pcp:312kB 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 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
1*1024kB (U) 
1*2048kB (M) 
3*4096kB 
(M) = 15908kB
Node 0 
DMA32: 2*4kB 
(M) 
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
1*8kB (U) 
3*16kB (M) 
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
1*32kB (M) 
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
3*64kB (UM) 
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
3*128kB 
(M) 2*256kB 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
(M) 
3*512kB (M) 
4*1024kB (UM) 
3*2048kB (UM) 
3*4096kB (M) 
= 25248kB
Node 0 
Normal: 
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
1064*4kB 
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
(MEH) 
 addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
487*8kB (UMEH) 
178*16kB (MEH) 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
42*32kB (UMEH) 
11*64kB (M) 
4*128kB 
(H) 
2*256kB (H) 
0*512kB 
0*1024kB 
0*2048kB 0*4096kB 
= 14072kB
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
5209 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
342744 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=
/
 mems_allowed=0
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
 </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 06 a4 3e ff e9 c5 fe ff ff e8 1d 01 c3 ff 48 83 3d bd 4f 90 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 9a 42
RSP: 0018:ffff880198def748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88019d932c80 RDI: 0000000000000282
RBP: ffff880198def7b0 R08: ffff88019d932400 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be8800 R14: ffff8801d9be8800 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1283
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_a2323609a0d1adb1+0x380/0x1000
CPU: 1 PID: 5361 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #51
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.118+0xb7/0x1bd mm/page_alloc.c:3426
syz-executor5: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor5 cpuset=
syz5
 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:console_unlock+0x1017/0x11a0 kernel/printk/printk.c:2411
Code: c1 e8 03 42 80 3c 20 00 0f 85 8d 01 00 00 48 83 3d 25 98 ed 07 00 0f 84 78 01 00 00 e8 a2 3d 1a 00 48 8b bd c0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 68 f9 ff ff e8 ba a0 5d 00 e9 08 f4 ff ff e8 80
RSP: 0000:ffff8801d91ad4d0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801d9156600 RBX: 0000000000000200 RCX: 1ffff1003b22adde
RDX: 0000000000000000 RSI: ffffffff8164918e RDI: 0000000000000293
RBP: ffff8801d91ad630 R08: ffff8801d9156ef0 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d9156600 R12: dffffc0000000000
R13: ffffffff848d86c0 R14: ffffffff89b9bd50 R15: dffffc0000000000
 vprintk_emit+0x33d/0x930 kernel/printk/printk.c:1926
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1967
 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398
 printk+0xa7/0xcf kernel/printk/printk.c:2000
 show_migration_types mm/page_alloc.c:4841 [inline]
 show_free_areas.cold.119+0x1f34/0x215d mm/page_alloc.c:5031
 show_mem+0x34/0x17b lib/show_mem.c:18
 dump_header+0x2f1/0xf72 mm/oom_kill.c:445
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:952
 out_of_memory+0xa86/0x14c0 mm/oom_kill.c:1112
 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
 __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946
 page_cache_read mm/filemap.c:2385 [inline]
 filemap_fault+0x1594/0x25f0 mm/filemap.c:2569
 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6257
 __do_fault+0x100/0x6b0 mm/memory.c:3240
 do_read_fault mm/memory.c:3652 [inline]
 do_fault mm/memory.c:3752 [inline]
 handle_pte_fault mm/memory.c:3983 [inline]
 __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107
 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144
 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161
RIP: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c42001fea0 EFLAGS: 00010206
RAX: ffffffffffffff92 RBX: 00000000180b7f55 RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014947a0
RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001fed8 R11: 0000000000000206 R12: 0000000000000001
R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424604d10
CPU: 0 PID: 10624 Comm: syz-executor5 Not tainted 4.19.0-rc2+ #51
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:42560 inactive_anon:2059 isolated_anon:0
 active_file:17 inactive_file:16 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9617 slab_unreclaimable:1462393
 mapped:57539 shmem:5176 pagetables:765 bounce:0
 free:13793 free_pcp:231 free_cma:0
 <IRQ>
Node 0 active_anon:170240kB inactive_anon:8236kB active_file:68kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:230156kB dirty:0kB writeback:0kB shmem:20704kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 145408kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 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.118+0xb7/0x1bd mm/page_alloc.c:3426
lowmem_reserve[]: 0
 2817
 6321
 6321
Node 0 
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
DMA32 free:25248kB min:30048kB low:37560kB high:45072kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2889304kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]:
 0 0
 3503
 3503
Node 0 
Normal free:14016kB min:37364kB low:46704kB high:56044kB active_anon:170240kB inactive_anon:8236kB active_file:68kB inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB managed:3587728kB mlocked:0kB kernel_stack:5600kB pagetables:3060kB bounce:0kB free_pcp:676kB local_pcp:312kB 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 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
1*1024kB 
(U) 
1*2048kB 
(M) 
3*4096kB 
(M) 
= 15908kB
Node 0 
DMA32: 2*4kB 
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 kmem_getpages mm/slab.c:1409 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2677
(M) 1*8kB (U) 
3*16kB 
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
(M) 
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
1*32kB (M) 
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
3*64kB 
(UM) 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
3*128kB (M) 
2*256kB 
(M) 
3*512kB 
(M) 
4*1024kB (UM) 
3*2048kB 
(UM) 
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
3*4096kB (M) 
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
= 25248kB
 addrconf_rs_timer+0x3c0/0x6f0 net/ipv6/addrconf.c:3819
Node 0 
Normal: 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
1064*4kB 
(MEH) 
487*8kB (UMEH) 
178*16kB (MEH) 
42*32kB 
(UMEH) 
11*64kB 
(M) 
4*128kB (H) 
2*256kB (H) 
0*512kB 
0*1024kB 
0*2048kB 
0*4096kB 
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
= 14072kB
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
5209 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
342744 pages reserved
0 pages cma reserved
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
/
 mems_allowed=0
 __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 06 a4 3e ff e9 c5 fe ff ff e8 1d 01 c3 ff 48 83 3d bd 4f 90 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 9a 42
RSP: 0018:ffff880198def748 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88019d932c80 RDI: 0000000000000282
RBP: ffff880198def7b0 R08: ffff88019d932400 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8801d9be8800 R14: ffff8801d9be8800 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1283
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_a2323609a0d1adb1+0x380/0x1000
CPU: 1 PID: 5361 Comm: syz-fuzzer Not tainted 4.19.0-rc2+ #51
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+0x1c4/0x2b4 lib/dump_stack.c:113
syz5
 mems_allowed=0
 warn_alloc.cold.118+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
 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

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-bpf-kasan-gce 2018/09/09 06:23 bpf 28619527b8a7 6b5120a4 .config log report
ci-upstream-bpf-next-kasan-gce 2018/09/10 08:37 bpf-next f6f3bac08ff9 6b5120a4 .config log report
ci-upstream-linux-next-kasan-gce-root 2018/09/04 09:21 linux-next f2b6e66e9885 a4718693 .config log report