rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (1 GPs behind) idle=b27/1/0x4000000000000000 softirq=7617/7618 fqs=5244 
	(detected by 1, t=10502 jiffies, g=8429, q=1509)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4466 Comm: syz.0.68 Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:rdtsc_ordered arch/x86/include/asm/msr.h:224 [inline]
RIP: 0010:pvclock_clocksource_read+0x9a/0x710 arch/x86/kernel/pvclock.c:76
Code: 48 89 54 24 40 48 89 4c 24 28 42 0f b6 04 3a 84 c0 0f 85 47 01 00 00 42 0f b6 04 39 84 c0 0f 85 8d 01 00 00 45 8b 28 0f 01 f9 <66> 90 48 89 c5 49 89 d6 49 c1 e6 20 48 8b 44 24 60 42 0f b6 04 38
RSP: 0018:ffffc90000007278 EFLAGS: 00000046
RAX: 00000000825c44b1 RBX: 1ffffffff1f13a01 RCX: 0000000000000000
RDX: 0000000000000111 RSI: ffffffff8f89d01c RDI: ffffffff8f89d01d
RBP: ffff888023fb0000 R08: ffffffff8f89d000 R09: ffffffff8f89d008
R10: ffffffff8f89d018 R11: ffffffff8f89d010 R12: ffff8880b8e27740
R13: 0000000000000008 R14: dffffc0000000000 R15: dffffc0000000000
FS:  00007f965ab8f6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020002000 CR3: 00000000247da000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 kvm_clock_read arch/x86/kernel/kvmclock.c:79 [inline]
 kvm_sched_clock_read+0x14/0x40 arch/x86/kernel/kvmclock.c:91
 sched_clock_cpu+0x15/0x3b0 kernel/sched/clock.c:371
 irqtime_account_irq+0x70/0x1e0 kernel/sched/cputime.c:61
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0x45/0xc0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:rcu_read_unlock_special+0x84/0x520 kernel/rcu/tree_plugin.h:671
Code: f1 f1 f1 00 f2 f2 f2 49 89 04 17 66 41 c7 44 17 09 f3 f3 41 c6 44 17 0b f3 65 44 8b 25 bd 92 96 7e 41 f7 c4 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 3a 00 00 00 00 66 42 c7 44 3a
RSP: 0018:ffffc90000007480 EFLAGS: 00000206
RAX: 37fd380426196400 RBX: 1ffff92000000e98 RCX: ffffffff81632d68
RDX: dffffc0000000000 RSI: ffffffff8aab2a80 RDI: ffffffff8af9ed00
RBP: ffffc90000007550 R08: dffffc0000000000 R09: fffffbfff2131039
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8cb23c00
R13: ffff888023fb0458 R14: ffffc900000074c0 R15: 1ffff92000000e94
 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock include/linux/rcupdate.h:771 [inline]
 __ip_queue_xmit+0x1360/0x1d90 net/ipv4/ip_output.c:533
 __tcp_transmit_skb+0x1f39/0x3810 net/ipv4/tcp_output.c:1402
 tcp_transmit_skb net/ipv4/tcp_output.c:1420 [inline]
 __tcp_retransmit_skb+0x9f4/0x1580 net/ipv4/tcp_output.c:3265
 tcp_retransmit_skb+0x2e/0x3a0 net/ipv4/tcp_output.c:3288
 tcp_retransmit_timer+0x14c9/0x2680 net/ipv4/tcp_timer.c:570
 tcp_write_timer_handler+0x1f7/0x970 net/ipv4/tcp_timer.c:655
 tcp_write_timer+0x12e/0x280 net/ipv4/tcp_timer.c:675
 call_timer_fn+0x16d/0x560 kernel/time/timer.c:1451
 expire_timers kernel/time/timer.c:1496 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1767
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
 __do_softirq kernel/softirq.c:592 [inline]
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x7b/0x290 mm/kasan/generic.c:189
Code: 00 00 00 00 fc ff df 4f 8d 34 1a 4c 89 f5 4c 29 cd 48 83 fd 10 7f 26 48 85 ed 0f 84 3a 01 00 00 49 f7 d2 49 01 da 41 80 39 00 <0f> 85 c4 01 00 00 49 ff c1 49 ff c2 75 ee e9 1d 01 00 00 45 89 cf
RSP: 0018:ffffc9000314f620 EFLAGS: 00000246
RAX: ffffffff81bb6301 RBX: 1ffff1100fb6f637 RCX: ffffffff81bb63cf
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88807db7b1b8
RBP: 0000000000000001 R08: dffffc0000000000 R09: ffffed100fb6f637
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88807db7b100
R13: dffffc0000000000 R14: ffffed100fb6f638 R15: 0000000000000000
 instrument_atomic_read include/linux/instrumented.h:71 [inline]
 atomic_long_read include/linux/atomic/atomic-instrumented.h:1183 [inline]
 rwsem_is_locked include/linux/rwsem.h:72 [inline]
 mmap_assert_locked include/linux/mmap_lock.h:156 [inline]
 find_vma+0x8f/0x230 mm/mmap.c:2276
 do_user_addr_fault arch/x86/mm/fault.c:1318 [inline]
 handle_page_fault arch/x86/mm/fault.c:1445 [inline]
 exc_page_fault+0x1b8/0x700 arch/x86/mm/fault.c:1501
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x40 arch/x86/lib/copy_user_64.S:206
Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 0f 1f 80 00 00 00 00 0f 01 cb 83 fa 40 0f 82 70 ff ff ff 89 d1 <f3> a4 31 c0 0f 01 ca c3 66 2e 0f 1f 84 00 00 00 00 00 89 d1 83 f8
RSP: 0018:ffffc9000314f798 EFLAGS: 00050202
RAX: ffffffff84119401 RBX: ffffc900032a1000 RCX: 000000000000e0c9
RDX: 000000000000fec9 RSI: 0000000020002000 RDI: ffffc900032a2e00
RBP: ffffc9000314f8f0 R08: dffffc0000000000 R09: fffff520006561da
R10: 0000000000000002 R11: dffffc0000000001 R12: 00007ffffffff000
R13: 0000000020000200 R14: 000000000000fec9 R15: 0000000000000000
 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
 raw_copy_from_user arch/x86/include/asm/uaccess_64.h:52 [inline]
 copyin lib/iov_iter.c:168 [inline]
 _copy_from_iter+0x31c/0xe90 lib/iov_iter.c:776
 copy_from_iter include/linux/uio.h:164 [inline]
 copy_from_iter_full include/linux/uio.h:170 [inline]
 memcpy_from_msg include/linux/skbuff.h:3803 [inline]
 netlink_sendmsg+0x800/0xd60 net/netlink/af_netlink.c:1905
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2436
 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2490
 __sys_sendmsg net/socket.c:2519 [inline]
 __do_sys_sendmsg net/socket.c:2528 [inline]
 __se_sys_sendmsg+0x19a/0x260 net/socket.c:2526
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f965cd19849
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f965ab8f058 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f965cedefa0 RCX: 00007f965cd19849
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 000000000000000c
RBP: 00007f965cd8c986 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f965cedefa0 R15: 00007ffd1df24148
 </TASK>