rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-...!: (1 GPs behind) idle=247/1/0x4000000000000000 softirq=237567/237570 fqs=56
(t=10500 jiffies g=427261 q=769)
rcu: rcu_preempt kthread starved for 10378 jiffies! g427261 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:28000 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4984 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6265
schedule+0xd2/0x260 kernel/sched/core.c:6338
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1966
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2139
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 21050 Comm: syz-executor.3 Not tainted 5.15.0-rc7-next-20211029-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:validate_chain kernel/locking/lockdep.c:3808 [inline]
RIP: 0010:__lock_acquire+0xce2/0x54a0 kernel/locking/lockdep.c:5027
Code: fc ff df 48 c1 ea 03 0f b6 14 02 48 c7 c0 4c ea 46 8d 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 65 35 00 00 8b 35 5a 65 ea 0b <85> f6 0f 84 3c 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24
RSP: 0018:ffffc900000077d0 EFLAGS: 00000046
RAX: 0000000000000007 RBX: ffffffff8ed91e60 RCX: ffffffff815c8e3f
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff8ed91e78
RBP: 000000000000dbf7 R08: 0000000000000000 R09: ffffffff8fa48a0f
R10: fffffbfff1f49141 R11: 0000000000000000 R12: ffff88814686c588
R13: ffff88814686ba80 R14: 0000000000000000 R15: 8e714a05395249a6
FS: 00007f8f77bbe700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200001c0 CR3: 0000000174877000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5637 [inline]
lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5602
seqcount_lockdep_reader_access include/linux/seqlock.h:103 [inline]
ktime_get_update_offsets_now+0x82/0x5c0 kernel/time/timekeeping.c:2297
hrtimer_update_base kernel/time/hrtimer.c:631 [inline]
hrtimer_interrupt+0x142/0x790 kernel/time/hrtimer.c:1793
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:194
Code: 74 24 10 e8 fa 8e 42 f8 48 89 ef e8 42 05 43 f8 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 e3 cd 35 f8 65 8b 05 5c 26 e8 76 85 c0 74 0a 5b 5d c3 e8 40 c8
RSP: 0018:ffffc90000007c08 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff1f5387e
RDX: 0000000000000000 RSI: 0000000000000101 RDI: 0000000000000001
RBP: ffff8880b9c28280 R08: 0000000000000001 R09: ffffffff8fa48adf
R10: 0000000000000001 R11: 0000000000000000 R12: 000000010003dc98
R13: ffff8880b9c28280 R14: 0000000000000000 R15: 00000000ffffffff
__mod_timer+0x837/0xe30 kernel/time/timer.c:1065
call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421
expire_timers kernel/time/timer.c:1466 [inline]
__run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734
__run_timers kernel/time/timer.c:1715 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x7/0x60 kernel/kcov.c:200
Code: 46 00 5d be 03 00 00 00 e9 e6 44 2b 02 66 0f 1f 44 00 00 48 8b be b0 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 65 8b 05 c9 a3 8a 7e <89> c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 40 70 02 00 a9
RSP: 0018:ffffc90021c6f4f0 EFLAGS: 00000282
RAX: 0000000000000000 RBX: fffffffffffff938 RCX: ffffc9000feab000
RDX: 0000000000000000 RSI: ffffffff873b9f10 RDI: ffffc90021c6f5b8
RBP: 0000000000001331 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff873b9f03 R11: 0000000000000000 R12: ffff88801539d3e0
R13: ffff8880767cac00 R14: dffffc0000000000 R15: ffff888169a5b6c8
rht_obj include/linux/rhashtable.h:116 [inline]
__rhashtable_lookup.constprop.0+0x29b/0x5e0 include/linux/rhashtable.h:601
rhashtable_lookup include/linux/rhashtable.h:638 [inline]
rhashtable_lookup_fast include/linux/rhashtable.h:664 [inline]
__netlink_lookup net/netlink/af_netlink.c:514 [inline]
netlink_lookup+0x130/0x470 net/netlink/af_netlink.c:534
netlink_getsockbyportid net/netlink/af_netlink.c:1154 [inline]
netlink_unicast+0x244/0x7d0 net/netlink/af_netlink.c:1339
nlmsg_unicast include/net/netlink.h:1050 [inline]
netlink_ack+0x5ec/0xa60 net/netlink/af_netlink.c:2461
netlink_rcv_skb+0x33d/0x420 net/netlink/af_netlink.c:2497
nfnetlink_rcv+0x1ac/0x420 net/netfilter/nfnetlink.c:654
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:724
____sys_sendmsg+0x6e8/0x810 net/socket.c:2409
___sys_sendmsg+0xf3/0x170 net/socket.c:2463
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2492
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f8f7a648ae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8f77bbe188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f8f7a75bf60 RCX: 00007f8f7a648ae9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003
RBP: 00007f8f7a6a2f25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcbad2dddf R14: 00007f8f77bbe300 R15: 0000000000022000
NMI backtrace for cpu 1
CPU: 1 PID: 21026 Comm: syz-executor.4 Not tainted 5.15.0-rc7-next-20211029-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
print_cpu_stall kernel/rcu/tree_stall.h:604 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:688 [inline]
rcu_pending kernel/rcu/tree.c:3922 [inline]
rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2620
update_process_times+0x16d/0x200 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1428
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:194
Code: 74 24 10 e8 fa 8e 42 f8 48 89 ef e8 42 05 43 f8 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 e3 cd 35 f8 65 8b 05 5c 26 e8 76 85 c0 74 0a 5b 5d c3 e8 40 c8
RSP: 0018:ffffc90000dc0c08 EFLAGS: 00000206
RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff1f5387e
RDX: 0000000000000000 RSI: 0000000000000102 RDI: 0000000000000001
RBP: ffff8880b9d28280 R08: 0000000000000001 R09: ffffffff8fa48adf
R10: 0000000000000001 R11: 0000000000000000 R12: 000000010003dc8d
R13: ffff8880b9d28280 R14: 0000000000000000 R15: 00000000ffffffff
__mod_timer+0x837/0xe30 kernel/time/timer.c:1065
call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421
expire_timers kernel/time/timer.c:1466 [inline]
__run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734
__run_timers kernel/time/timer.c:1715 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200
Code: 48 89 ef 5d e9 81 22 46 00 5d be 03 00 00 00 e9 e6 44 2b 02 66 0f 1f 44 00 00 48 8b be b0 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 <65> 8b 05 c9 a3 8a 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc90021e0eff8 EFLAGS: 00000216
RAX: 00000000000041c7 RBX: 0000000000000000 RCX: ffffc900120bc000
RDX: 0000000000040000 RSI: ffffffff815f017c RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8fa48a07
R10: ffffffff815f0172 R11: 0000000000000000 R12: ffffffff84a9d1c0
R13: 0000000000000200 R14: ffffc90021e0f058 R15: dffffc0000000000
console_unlock+0x6c2/0xb70 kernel/printk/printk.c:2719
vprintk_emit+0x198/0x4f0 kernel/printk/printk.c:2248
vprintk+0x80/0x90 kernel/printk/printk_safe.c:50
_printk+0xba/0xed kernel/printk/printk.c:2269
validate_nla lib/nlattr.c:377 [inline]
__nla_validate_parse.cold+0x96/0xaa lib/nlattr.c:588
__nla_parse+0x3d/0x50 lib/nlattr.c:685
__nlmsg_parse include/net/netlink.h:733 [inline]
nlmsg_parse_deprecated include/net/netlink.h:772 [inline]
fib_nl_newrule+0x23b/0x1c80 net/core/fib_rules.c:776
rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5571
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2491
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:724
sock_write_iter+0x289/0x3c0 net/socket.c:1057
call_write_iter include/linux/fs.h:2162 [inline]
do_iter_readv_writev+0x472/0x750 fs/read_write.c:725
do_iter_write+0x188/0x710 fs/read_write.c:851
vfs_writev+0x1aa/0x630 fs/read_write.c:924
do_writev+0x27f/0x300 fs/read_write.c:967
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fe80b1c4ae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe80873a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007fe80b2d7f60 RCX: 00007fe80b1c4ae9
RDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000005
RBP: 00007fe80b21ef25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd8272a8bf R14: 00007fe80873a300 R15: 0000000000022000
watchdog: BUG: soft lockup - CPU#0 stuck for 238s! [syz-executor.3:21050]
Modules linked in:
irq event stamp: 31537027
hardirqs last enabled at (31537026): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline]
hardirqs last enabled at (31537026): [] _raw_spin_unlock_irq+0x1f/0x40 kernel/locking/spinlock.c:202
hardirqs last disabled at (31537027): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1097
softirqs last enabled at (306): [] rcu_read_unlock_bh include/linux/rcupdate.h:760 [inline]
softirqs last enabled at (306): [] __dev_queue_xmit+0x193c/0x3630 net/core/dev.c:4253
softirqs last disabled at (351): [] invoke_softirq kernel/softirq.c:432 [inline]
softirqs last disabled at (351): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
CPU: 0 PID: 21050 Comm: syz-executor.3 Not tainted 5.15.0-rc7-next-20211029-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 3e 8f 42 f8 48 89 ef e8 86 05 43 f8 e8 b1 c8 63 f8 fb bf 01 00 00 00 36 ce 35 f8 65 8b 05 af 26 e8 76 85 c0 74 02 5d c3 0f 1f 44 00
RSP: 0018:ffffc90000007e08 EFLAGS: 00000206
RAX: 0000000001e13782 RBX: ffffffff871d2980 RCX: 1ffffffff1a8d151
RDX: 0000000000000000 RSI: 0000000000000101 RDI: 0000000000000001
RBP: ffff8880b9c28280 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817e1228 R11: 0000000000000000 R12: ffffc90000007e98
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8880b9c28280
FS: 00007f8f77bbe700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200001c0 CR3: 0000000174877000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
expire_timers kernel/time/timer.c:1465 [inline]
__run_timers.part.0+0x665/0xa20 kernel/time/timer.c:1734
__run_timers kernel/time/timer.c:1715 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x7/0x60 kernel/kcov.c:200
Code: 46 00 5d be 03 00 00 00 e9 e6 44 2b 02 66 0f 1f 44 00 00 48 8b be b0 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 65 8b 05 c9 a3 8a 7e <89> c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 40 70 02 00 a9
RSP: 0018:ffffc90021c6f4f0 EFLAGS: 00000282
RAX: 0000000000000000 RBX: fffffffffffff938 RCX: ffffc9000feab000
RDX: 0000000000000000 RSI: ffffffff873b9f10 RDI: ffffc90021c6f5b8
RBP: 0000000000001331 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff873b9f03 R11: 0000000000000000 R12: ffff88801539d3e0
R13: ffff8880767cac00 R14: dffffc0000000000 R15: ffff888169a5b6c8
rht_obj include/linux/rhashtable.h:116 [inline]
__rhashtable_lookup.constprop.0+0x29b/0x5e0 include/linux/rhashtable.h:601
rhashtable_lookup include/linux/rhashtable.h:638 [inline]
rhashtable_lookup_fast include/linux/rhashtable.h:664 [inline]
__netlink_lookup net/netlink/af_netlink.c:514 [inline]
netlink_lookup+0x130/0x470 net/netlink/af_netlink.c:534
netlink_getsockbyportid net/netlink/af_netlink.c:1154 [inline]
netlink_unicast+0x244/0x7d0 net/netlink/af_netlink.c:1339
nlmsg_unicast include/net/netlink.h:1050 [inline]
netlink_ack+0x5ec/0xa60 net/netlink/af_netlink.c:2461
netlink_rcv_skb+0x33d/0x420 net/netlink/af_netlink.c:2497
nfnetlink_rcv+0x1ac/0x420 net/netfilter/nfnetlink.c:654
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:724
____sys_sendmsg+0x6e8/0x810 net/socket.c:2409
___sys_sendmsg+0xf3/0x170 net/socket.c:2463
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2492
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f8f7a648ae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8f77bbe188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f8f7a75bf60 RCX: 00007f8f7a648ae9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003
RBP: 00007f8f7a6a2f25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcbad2dddf R14: 00007f8f77bbe300 R15: 0000000000022000
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 21026 Comm: syz-executor.4 Not tainted 5.15.0-rc7-next-20211029-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:trace_lock_release include/trace/events/lock.h:58 [inline]
RIP: 0010:lock_release+0x516/0x720 kernel/locking/lockdep.c:5648
Code: 14 11 38 d0 7c 08 84 d2 0f 85 da 01 00 00 44 8b 05 d7 0c ea 0b 45 85 c0 0f 85 a5 fe ff ff e9 56 33 79 07 65 ff 05 7a 92 a5 7e <48> 8b 05 d3 0e d6 0b e8 6e d1 05 00 85 c0 74 17 65 ff 0d 63 92 a5
RSP: 0018:ffffc90000dc08d0 EFLAGS: 00000003
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff815cd911
RDX: fffffbfff1a8d6c3 RSI: 0000000000000008 RDI: ffffffff8d46b610
RBP: 1ffff920001b811c R08: 0000000000000000 R09: ffffffff8d46b617
R10: fffffbfff1a8d6c2 R11: 0000000000000000 R12: ffffffff8b7a2d88
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880b9d2a400
FS: 00007fe80873a700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000040 CR3: 00000001744a1000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
seqcount_lockdep_reader_access include/linux/seqlock.h:104 [inline]
timekeeping_get_delta kernel/time/timekeeping.c:252 [inline]
timekeeping_get_ns kernel/time/timekeeping.c:386 [inline]
ktime_get+0x158/0x470 kernel/time/timekeeping.c:829
clockevents_program_event+0x141/0x370 kernel/time/clockevents.c:326
tick_program_event+0xac/0x140 kernel/time/tick-oneshot.c:44
hrtimer_interrupt+0x36e/0x790 kernel/time/hrtimer.c:1824
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:106 [inline]
RIP: 0010:lock_is_held_type+0x51/0x140 kernel/locking/lockdep.c:5676
Code: eb 76 85 c0 0f 85 ca 00 00 00 65 4c 8b 24 25 40 70 02 00 41 8b 94 24 64 0a 00 00 85 d2 0f 85 b1 00 00 00 48 89 fd 41 89 f6 9c <8f> 04 24 fa 48 c7 c7 40 0c 6c 89 31 db e8 1d 0e 00 00 41 8b 84 24
RSP: 0018:ffffc90000dc0bd8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8b7838e0
RBP: ffffffff8b7838e0 R08: 0000000000000000 R09: ffffffff8d46b617
R10: fffffbfff1a8d6c2 R11: 0000000000000000 R12: ffff888159ed1d40
R13: 00000000ffffffff R14: 00000000ffffffff R15: 0000000000000000
lock_is_held include/linux/lockdep.h:283 [inline]
rcu_read_lock_sched_held+0x3a/0x70 kernel/rcu/update.c:125
trace_lock_release include/trace/events/lock.h:58 [inline]
lock_release+0x522/0x720 kernel/locking/lockdep.c:5648
__raw_spin_unlock include/linux/spinlock_api_smp.h:150 [inline]
_raw_spin_unlock+0x12/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:407 [inline]
mrp_join_timer+0x7b/0xc0 net/802/mrp.c:606
call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421
expire_timers kernel/time/timer.c:1466 [inline]
__run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734
__run_timers kernel/time/timer.c:1715 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200
Code: 48 89 ef 5d e9 81 22 46 00 5d be 03 00 00 00 e9 e6 44 2b 02 66 0f 1f 44 00 00 48 8b be b0 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 <65> 8b 05 c9 a3 8a 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc90021e0eff8 EFLAGS: 00000216
RAX: 00000000000041c7 RBX: 0000000000000000 RCX: ffffc900120bc000
RDX: 0000000000040000 RSI: ffffffff815f017c RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8fa48a07
R10: ffffffff815f0172 R11: 0000000000000000 R12: ffffffff84a9d1c0
R13: 0000000000000200 R14: ffffc90021e0f058 R15: dffffc0000000000
console_unlock+0x6c2/0xb70 kernel/printk/printk.c:2719
vprintk_emit+0x198/0x4f0 kernel/printk/printk.c:2248
vprintk+0x80/0x90 kernel/printk/printk_safe.c:50
_printk+0xba/0xed kernel/printk/printk.c:2269
validate_nla lib/nlattr.c:377 [inline]
__nla_validate_parse.cold+0x96/0xaa lib/nlattr.c:588
__nla_parse+0x3d/0x50 lib/nlattr.c:685
__nlmsg_parse include/net/netlink.h:733 [inline]
nlmsg_parse_deprecated include/net/netlink.h:772 [inline]
fib_nl_newrule+0x23b/0x1c80 net/core/fib_rules.c:776
rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5571
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2491
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:724
sock_write_iter+0x289/0x3c0 net/socket.c:1057
call_write_iter include/linux/fs.h:2162 [inline]
do_iter_readv_writev+0x472/0x750 fs/read_write.c:725
do_iter_write+0x188/0x710 fs/read_write.c:851
vfs_writev+0x1aa/0x630 fs/read_write.c:924
do_writev+0x27f/0x300 fs/read_write.c:967
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fe80b1c4ae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe80873a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007fe80b2d7f60 RCX: 00007fe80b1c4ae9
RDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000005
RBP: 00007fe80b21ef25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd8272a8bf R14: 00007fe80873a300 R15: 0000000000022000
----------------
Code disassembly (best guess), 3 bytes skipped:
0: 48 c1 ea 03 shr $0x3,%rdx
4: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx
8: 48 c7 c0 4c ea 46 8d mov $0xffffffff8d46ea4c,%rax
f: 83 e0 07 and $0x7,%eax
12: 83 c0 03 add $0x3,%eax
15: 38 d0 cmp %dl,%al
17: 7c 08 jl 0x21
19: 84 d2 test %dl,%dl
1b: 0f 85 65 35 00 00 jne 0x3586
21: 8b 35 5a 65 ea 0b mov 0xbea655a(%rip),%esi # 0xbea6581
* 27: 85 f6 test %esi,%esi <-- trapping instruction
29: 0f 84 3c 01 00 00 je 0x16b
2f: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
36: fc ff df
39: 48 rex.W
3a: 8b .byte 0x8b
3b: 54 push %rsp
3c: 24 .byte 0x24