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BUG: KASAN: stack-out-of-bounds in csd_lock_record+0xcb/0xe0 kernel/smp.c:118
Read of size 8 at addr ffffc90001e27550 by task syz-executor.4/8476

CPU: 0 PID: 8476 Comm: syz-executor.4 Not tainted 5.8.0-rc3-next-20200703-syzkaller #0
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+0x18f/0x20d lib/dump_stack.c:118
 print_address_description.constprop.0.cold+0x5/0x436 mm/kasan/report.c:383
 __kasan_report mm/kasan/report.c:513 [inline]
 kasan_report.cold+0x1f/0x37 mm/kasan/report.c:530
 csd_lock_record+0xcb/0xe0 kernel/smp.c:118
 flush_smp_call_function_queue+0x285/0x730 kernel/smp.c:391
 __sysvec_call_function_single+0x98/0x490 arch/x86/kernel/smp.c:248
 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline]
 sysvec_call_function_single+0xe0/0x120 arch/x86/kernel/smp.c:243
 asm_sysvec_call_function_single+0x12/0x20 arch/x86/include/asm/idtentry.h:604
RIP: 0010:should_resched arch/x86/include/asm/preempt.h:102 [inline]
RIP: 0010:__local_bh_enable_ip+0x189/0x250 kernel/softirq.c:196
Code: 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 c4 00 00 00 48 83 3d 40 59 6e 08 00 74 7b fb 66 0f 1f 44 00 00 <65> 8b 05 a0 58 bb 7e 85 c0 74 6b 5b 5d 41 5c c3 80 3d c1 7c 63 09
RSP: 0018:ffffc90001f3f8c0 EFLAGS: 00000286
RAX: 1ffffffff1369fe2 RBX: 0000000000000201 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff8146a5a9
RBP: ffffffff868b8d5d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88804d18c5c0
R13: ffffc90004639000 R14: 0000000000000001 R15: 000000000000065b
 spin_unlock_bh include/linux/spinlock.h:399 [inline]
 htable_selective_cleanup+0x22d/0x310 net/netfilter/xt_hashlimit.c:374
 htable_put.part.0+0x322/0x4c0 net/netfilter/xt_hashlimit.c:430
 htable_put net/netfilter/xt_hashlimit.c:424 [inline]
 hashlimit_mt_destroy_v1+0x74/0x90 net/netfilter/xt_hashlimit.c:970
 cleanup_match net/ipv6/netfilter/ip6_tables.c:478 [inline]
 find_check_entry.constprop.0+0x4d8/0x9e0 net/ipv6/netfilter/ip6_tables.c:582
 translate_table+0xc46/0x16a0 net/ipv6/netfilter/ip6_tables.c:734
 do_replace net/ipv6/netfilter/ip6_tables.c:1153 [inline]
 do_ip6t_set_ctl+0x2af/0x460 net/ipv6/netfilter/ip6_tables.c:1681
 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline]
 nf_setsockopt+0x6f/0xc0 net/netfilter/nf_sockopt.c:115
 ipv6_setsockopt+0x10c/0x170 net/ipv6/ipv6_sockglue.c:905
 tcp_setsockopt+0x86/0xd0 net/ipv4/tcp.c:3331
 __sys_setsockopt+0x24a/0x480 net/socket.c:2127
 __do_sys_setsockopt net/socket.c:2143 [inline]
 __se_sys_setsockopt net/socket.c:2140 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:2140
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:367
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45cb29
Code: Bad RIP value.
RSP: 002b:00007feb91620c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00000000005035e0 RCX: 000000000045cb29
RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000004
RBP: 000000000078bf00 R08: 0000000000000390 R09: 0000000000000000
R10: 0000000020000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000a7d R14: 00000000004d6ee8 R15: 00007feb916216d4


Memory state around the buggy address:
 ffffc90001e27400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90001e27480: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1
>ffffc90001e27500: 04 f2 04 f2 00 00 00 f2 00 00 00 f2 f2 f2 00 00
                                                    ^
 ffffc90001e27580: 00 00 00 00 00 00 00 f3 f3 f3 f3 f3 00 00 00 00
 ffffc90001e27600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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