netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (10500 ticks this GP) idle=d6a/1/0x4000000000000004 softirq=343723/343723 fqs=4418 rcu: (t=10500 jiffies g=434241 q=24) NMI backtrace for cpu 1 CPU: 1 PID: 19332 Comm: syz-executor.5 Not tainted 4.19.126-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2fe lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1eb lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_dump_cpu_stacks+0x170/0x1bb kernel/rcu/tree.c:1340 print_cpu_stall kernel/rcu/tree.c:1478 [inline] check_cpu_stall kernel/rcu/tree.c:1550 [inline] __rcu_pending kernel/rcu/tree.c:3293 [inline] rcu_pending kernel/rcu/tree.c:3336 [inline] rcu_check_callbacks.cold+0x634/0xddc kernel/rcu/tree.c:2682 update_process_times+0x2a/0x70 kernel/time/timer.c:1638 tick_sched_handle.isra.0+0x91/0x180 kernel/time/tick-sched.c:168 tick_sched_timer+0x44/0x130 kernel/time/tick-sched.c:1278 __run_hrtimer kernel/time/hrtimer.c:1401 [inline] __hrtimer_run_queues+0x2ec/0xd20 kernel/time/hrtimer.c:1463 hrtimer_interrupt+0x312/0x770 kernel/time/hrtimer.c:1521 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1067 [inline] smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1092 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xa3/0xe0 kernel/locking/spinlock.c:184 Code: 48 c7 c0 88 55 b2 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 2f 48 83 3d fc 6b 94 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb b2 e8 3d 73 e2 f9 eb c0 0f 0b 0f 0b 48 c7 c7 88 RSP: 0018:ffff8880ae707c20 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1164ab1 RBX: 0000000000000282 RCX: 1ffff1100a64cded RDX: dffffc0000000000 RSI: ffff888053266f48 RDI: 0000000000000282 RBP: ffff8880ae723a40 R08: ffff8880532666c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000023a40 R14: 0000000000000000 R15: ffff8880ae723a40 __mod_timer kernel/time/timer.c:1059 [inline] mod_timer+0x516/0xf70 kernel/time/timer.c:1102 call_timer_fn+0x177/0x700 kernel/time/timer.c:1326 expire_timers+0x24f/0x4f0 kernel/time/timer.c:1363 __run_timers kernel/time/timer.c:1684 [inline] run_timer_softirq+0x218/0x660 kernel/time/timer.c:1697 __do_softirq+0x26c/0x93d kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17b/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:544 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:seqcount_lockdep_reader_access include/linux/seqlock.h:83 [inline] RIP: 0010:read_seqcount_begin include/linux/seqlock.h:164 [inline] RIP: 0010:ktime_get_ts64+0x32b/0x3e0 kernel/time/timekeeping.c:889 Code: 48 c7 c0 88 55 b2 88 48 c1 e8 03 42 80 3c 30 00 0f 85 9e 00 00 00 48 83 3d e9 71 58 07 00 74 35 e8 2a a7 0d 00 4c 89 e7 57 9d <0f> 1f 44 00 00 e9 13 fe ff ff e8 16 a7 0d 00 0f 0b e8 0f a7 0d 00 RSP: 0018:ffff8882009e7e18 EFLAGS: 00000212 ORIG_RAX: ffffffffffffff13 RAX: 0000000000040000 RBX: ffff8882009e7eb8 RCX: ffffc90010617000 RDX: 000000000000333f RSI: ffffffff8159e3a6 RDI: 0000000000000212 RBP: ffff8882009e7e78 R08: ffff8880532666c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000212 R13: fffffbfff1164ab0 R14: dffffc0000000000 R15: 0000000000000200 posix_ktime_get_ts+0x11/0x20 kernel/time/posix-timers.c:213 __do_sys_clock_gettime kernel/time/posix-timers.c:1063 [inline] __se_sys_clock_gettime+0xa1/0x140 kernel/time/posix-timers.c:1053 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45f8aa Code: 25 18 00 00 00 00 74 01 f0 48 0f b1 3d bf a5 84 00 48 39 c2 75 da f3 c3 0f 1f 84 00 00 00 00 00 48 63 ff b8 e4 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 f3 c3 0f 1f 40 00 48 c7 c2 d4 ff ff ff f7 RSP: 002b:00007f9b4c425c58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e4 RAX: ffffffffffffffda RBX: 000000000078bf08 RCX: 000000000045f8aa RDX: 00000000000f4240 RSI: 00007f9b4c425c60 RDI: 0000000000000001 RBP: 000000000078bf00 R08: 000000000000000e R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000078bf0c R13: 0000000000000b90 R14: 00000000004cde97 R15: 000000000078bf0c