INFO: rcu_preempt self-detected stall on CPU
1-...: (1 GPs behind) idle=f6a/140000000000002/0 softirq=50494/50495 fqs=99
(t=10500 jiffies g=14634 c=14633 q=583)
rcu_preempt kthread starved for 10245 jiffies! g14634 c14633 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0
rcu_preempt R running task 29920 8 2 0x80000000
Call Trace:
schedule+0x8d/0x1b0 kernel/sched/core.c:3428
schedule_timeout+0x43c/0xe40 kernel/time/timer.c:1746
rcu_gp_kthread+0xb8e/0x1ce0 kernel/rcu/tree.c:2255
kthread+0x30d/0x420 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
NMI backtrace for cpu 1
CPU: 1 PID: 21480 Comm: syz-executor.0 Not tainted 4.14.176-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x13e/0x194 lib/dump_stack.c:58
nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x139/0x17e lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:158 [inline]
rcu_dump_cpu_stacks+0x16d/0x1b8 kernel/rcu/tree.c:1396
print_cpu_stall kernel/rcu/tree.c:1542 [inline]
check_cpu_stall kernel/rcu/tree.c:1610 [inline]
__rcu_pending kernel/rcu/tree.c:3390 [inline]
rcu_pending kernel/rcu/tree.c:3452 [inline]
rcu_check_callbacks.cold+0x490/0xdaa kernel/rcu/tree.c:2792
update_process_times+0x29/0x60 kernel/time/timer.c:1590
tick_sched_handle+0x7d/0x150 kernel/time/tick-sched.c:165
tick_sched_timer+0x3e/0x120 kernel/time/tick-sched.c:1223
__run_hrtimer kernel/time/hrtimer.c:1223 [inline]
__hrtimer_run_queues+0x25c/0xbb0 kernel/time/hrtimer.c:1287
hrtimer_interrupt+0x1e6/0x5e0 kernel/time/hrtimer.c:1321
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline]
smp_apic_timer_interrupt+0x117/0x5e0 arch/x86/kernel/apic/apic.c:1100
apic_timer_interrupt+0x8f/0xa0 arch/x86/entry/entry_64.S:792
RIP: 0010:filter_irq_stacks mm/kasan/kasan.c:427 [inline]
RIP: 0010:save_stack+0x32/0xa0 mm/kasan/kasan.c:448
RSP: 0018:ffff8880aeb07570 EFLAGS: 00000292 ORIG_RAX: ffffffffffffff10
RAX: 000000000000001b RBX: ffff888096063338 RCX: 000000000000001c
RDX: ffff8880aeb07588 RSI: 0000000000000000 RDI: 0000000000000282
RBP: 0000000001089220 R08: 0000000000000001 R09: 0000000000000002
R10: ffff8880a09eeb10 R11: ffff8880a09ee240 R12: 0000000001089220
R13: 0000000000000000 R14: ffff88812fe49dc0 R15: ffff888096063337
set_track mm/kasan/kasan.c:459 [inline]
kasan_kmalloc mm/kasan/kasan.c:551 [inline]
kasan_kmalloc+0xbf/0xe0 mm/kasan/kasan.c:529
kmem_cache_alloc+0x127/0x770 mm/slab.c:3552
kmem_cache_zalloc include/linux/slab.h:651 [inline]
fill_pool lib/debugobjects.c:110 [inline]
__debug_object_init+0x5b7/0x830 lib/debugobjects.c:341
debug_object_init lib/debugobjects.c:393 [inline]
debug_object_activate+0x274/0x450 lib/debugobjects.c:474
debug_rcu_head_queue kernel/rcu/rcu.h:152 [inline]
__call_rcu.constprop.0+0x31/0x7e0 kernel/rcu/tree.c:3050
sctp_transport_destroy net/sctp/transport.c:185 [inline]
sctp_transport_put+0xb9/0xe0 net/sctp/transport.c:341
sctp_association_free+0x498/0x765 net/sctp/associola.c:398
sctp_cmd_delete_tcb net/sctp/sm_sideeffect.c:924 [inline]
sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1312 [inline]
sctp_side_effects net/sctp/sm_sideeffect.c:1179 [inline]
sctp_do_sm+0x3557/0x4a90 net/sctp/sm_sideeffect.c:1150
sctp_generate_heartbeat_event+0x1da/0x3f0 net/sctp/sm_sideeffect.c:391
call_timer_fn+0x14a/0x650 kernel/time/timer.c:1279
expire_timers kernel/time/timer.c:1318 [inline]
__run_timers kernel/time/timer.c:1636 [inline]
__run_timers kernel/time/timer.c:1604 [inline]
run_timer_softirq+0x52a/0x1390 kernel/time/timer.c:1649
__do_softirq+0x254/0x9bf kernel/softirq.c:288
invoke_softirq kernel/softirq.c:368 [inline]
irq_exit+0x15b/0x1a0 kernel/softirq.c:409
exiting_irq arch/x86/include/asm/apic.h:648 [inline]
smp_apic_timer_interrupt+0x141/0x5e0 arch/x86/kernel/apic/apic.c:1102
apic_timer_interrupt+0x8f/0xa0 arch/x86/entry/entry_64.S:792
RIP: 0010:filter_irq_stacks mm/kasan/kasan.c:429 [inline]
RIP: 0010:save_stack+0x92/0xa0 mm/kasan/kasan.c:448
RSP: 0018:ffff8880505d7a18 EFLAGS: 00000287 ORIG_RAX: ffffffffffffff10
RAX: 000000000000000c RBX: ffff88805298d630 RCX: ffffffff81007295
RDX: 0000000000000009 RSI: ffff8880505d7a30 RDI: 0000000000000282
RBP: 0000000001088020 R08: 0000000000000001 R09: 0000000000000000
R10: ffff8880a09eeac0 R11: ffff8880a09ee240 R12: 0000000001088020
R13: 0000000000000010 R14: ffff88812fe56340 R15: ffff88805298d62f
set_track mm/kasan/kasan.c:459 [inline]
kasan_kmalloc mm/kasan/kasan.c:551 [inline]
kasan_kmalloc+0xbf/0xe0 mm/kasan/kasan.c:529
kmem_cache_alloc_trace+0x14d/0x7b0 mm/slab.c:3618
kmalloc include/linux/slab.h:488 [inline]
kzalloc include/linux/slab.h:661 [inline]
netlbl_secattr_alloc include/net/netlabel.h:396 [inline]
selinux_netlbl_sock_genattr+0xac/0x3e0 security/selinux/netlabel.c:91
selinux_netlbl_socket_post_create+0x63/0x130 security/selinux/netlabel.c:341
selinux_socket_post_create+0x425/0x650 security/selinux/hooks.c:4420
security_socket_post_create+0x86/0xc0 security/security.c:1352
__sock_create+0x49f/0x620 net/socket.c:1291
sock_create net/socket.c:1315 [inline]
SYSC_socket net/socket.c:1345 [inline]
SyS_socket+0xd2/0x170 net/socket.c:1325
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c889
RSP: 002b:00007f8d61404c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f8d614056d4 RCX: 000000000045c889
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000b64 R14: 00000000004cd9b0 R15: 000000000076bf0c
INFO: rcu_sched detected stalls on CPUs/tasks:
1-...: (1 GPs behind) idle=f6a/140000000000002/0 softirq=50478/50495 fqs=95
(detected by 0, t=10577 jiffies, g=6751, c=6750, q=7)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 21480 Comm: syz-executor.0 Not tainted 4.14.176-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880a09ee240 task.stack: ffff8880505d0000
RIP: 0010:match_held_lock+0x0/0x5c0 kernel/locking/lockdep.c:3554
RSP: 0018:ffff8880aeb07868 EFLAGS: 00000006
RAX: 0000000000000000 RBX: ffff8880a09ee240 RCX: 0000000000000000
RDX: 1ffff1101413dd57 RSI: ffffffff87d842e0 RDI: ffff8880a09eeac0
RBP: ffffffff87d842e0 R08: 00000099185be086 R09: ffff88821fff7048
R10: ffff88821fff7050 R11: 0000000000000001 R12: ffffed101413dd57
R13: ffff8880a09eeac0 R14: ffff8880a09eeac0 R15: 0000000000000000
FS: 00007f8d61405700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000b70004 CR3: 0000000094b66000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000004000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__lock_is_held+0xad/0x140 kernel/locking/lockdep.c:3814
lock_is_held_type+0x10d/0x210 kernel/locking/lockdep.c:4032
lock_is_held include/linux/lockdep.h:437 [inline]
rcu_read_lock_sched_held+0x10a/0x130 kernel/rcu/update.c:116
trace_local_timer_entry arch/x86/include/asm/trace/irq_vectors.h:56 [inline]
smp_apic_timer_interrupt+0x42d/0x5e0 arch/x86/kernel/apic/apic.c:1099
apic_timer_interrupt+0x8f/0xa0 arch/x86/entry/entry_64.S:792
RIP: 0010:debug_lockdep_rcu_enabled.part.0+0x14/0x50 kernel/rcu/update.c:300
RSP: 0018:ffff8880aeb079d0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10
RAX: dffffc0000000000 RBX: ffff8880a09ee240 RCX: 1ffffffff10279bc
RDX: 0000000000000004 RSI: ffff8880a09eeb10 RDI: 0000000000000282
RBP: ffff88804f94e000 R08: 0000000000000000 R09: 0000000000022012
R10: ffff8880a09eeb10 R11: ffff8880a09ee240 R12: ffff888053626280
R13: ffff888054949b40 R14: ffff88804f94e008 R15: dead000000000200
rcu_read_lock include/linux/rcupdate.h:630 [inline]
__rhashtable_remove_fast include/linux/rhashtable.h:1092 [inline]
rhltable_remove include/linux/rhashtable.h:1152 [inline]
sctp_unhash_transport+0xd5/0xb30 net/sctp/input.c:917
sctp_association_free+0x490/0x765 net/sctp/associola.c:397
sctp_cmd_delete_tcb net/sctp/sm_sideeffect.c:924 [inline]
sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1312 [inline]
sctp_side_effects net/sctp/sm_sideeffect.c:1179 [inline]
sctp_do_sm+0x3557/0x4a90 net/sctp/sm_sideeffect.c:1150
sctp_generate_heartbeat_event+0x1da/0x3f0 net/sctp/sm_sideeffect.c:391
call_timer_fn+0x14a/0x650 kernel/time/timer.c:1279
expire_timers kernel/time/timer.c:1318 [inline]
__run_timers kernel/time/timer.c:1636 [inline]
__run_timers kernel/time/timer.c:1604 [inline]
run_timer_softirq+0x52a/0x1390 kernel/time/timer.c:1649
__do_softirq+0x254/0x9bf kernel/softirq.c:288
invoke_softirq kernel/softirq.c:368 [inline]
irq_exit+0x15b/0x1a0 kernel/softirq.c:409
exiting_irq arch/x86/include/asm/apic.h:648 [inline]
smp_apic_timer_interrupt+0x141/0x5e0 arch/x86/kernel/apic/apic.c:1102
apic_timer_interrupt+0x8f/0xa0 arch/x86/entry/entry_64.S:792
RIP: 0010:filter_irq_stacks mm/kasan/kasan.c:429 [inline]
RIP: 0010:save_stack+0x92/0xa0 mm/kasan/kasan.c:448
RSP: 0018:ffff8880505d7a18 EFLAGS: 00000287 ORIG_RAX: ffffffffffffff10
RAX: 000000000000000c RBX: ffff88805298d630 RCX: ffffffff81007295
RDX: 0000000000000009 RSI: ffff8880505d7a30 RDI: 0000000000000282
RBP: 0000000001088020 R08: 0000000000000001 R09: 0000000000000000
R10: ffff8880a09eeac0 R11: ffff8880a09ee240 R12: 0000000001088020
R13: 0000000000000010 R14: ffff88812fe56340 R15: ffff88805298d62f
set_track mm/kasan/kasan.c:459 [inline]
kasan_kmalloc mm/kasan/kasan.c:551 [inline]
kasan_kmalloc+0xbf/0xe0 mm/kasan/kasan.c:529
kmem_cache_alloc_trace+0x14d/0x7b0 mm/slab.c:3618
kmalloc include/linux/slab.h:488 [inline]
kzalloc include/linux/slab.h:661 [inline]
netlbl_secattr_alloc include/net/netlabel.h:396 [inline]
selinux_netlbl_sock_genattr+0xac/0x3e0 security/selinux/netlabel.c:91
selinux_netlbl_socket_post_create+0x63/0x130 security/selinux/netlabel.c:341
selinux_socket_post_create+0x425/0x650 security/selinux/hooks.c:4420
security_socket_post_create+0x86/0xc0 security/security.c:1352
__sock_create+0x49f/0x620 net/socket.c:1291
sock_create net/socket.c:1315 [inline]
SYSC_socket net/socket.c:1345 [inline]
SyS_socket+0xd2/0x170 net/socket.c:1325
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c889
RSP: 002b:00007f8d61404c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f8d614056d4 RCX: 000000000045c889
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000b64 R14: 00000000004cd9b0 R15: 000000000076bf0c
Code: 89 f7 e8 44 2d 3e 00 e9 2d fe ff ff 48 c7 c7 48 67 d1 87 e8 b3 2c 3e 00 e9 51 ff ff ff 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 <48> b8 00 00 00 00 00 fc ff df 41 57 41 56 41 55 49 89 f5 41 54
rcu_sched kthread starved for 10335 jiffies! g6751 c6750 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0
rcu_sched R running task 29920 9 2 0x80000000
Call Trace:
schedule+0x8d/0x1b0 kernel/sched/core.c:3428
schedule_timeout+0x43c/0xe40 kernel/time/timer.c:1746
rcu_gp_kthread+0xb8e/0x1ce0 kernel/rcu/tree.c:2255
kthread+0x30d/0x420 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404