==================================================================
BUG: KASAN: stack-out-of-bounds in profile_pc+0x118/0x130 arch/x86/kernel/time.c:44
Read of size 8 at addr ffffc90003787848 by task kworker/1:3/5053

CPU: 1 PID: 5053 Comm: kworker/1:3 Not tainted 6.4.0-rc6-syzkaller-00037-gb6dad5178cea #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Workqueue: mld mld_ifc_work
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
 print_address_description.constprop.0+0x2c/0x3c0 mm/kasan/report.c:351
 print_report mm/kasan/report.c:462 [inline]
 kasan_report+0x11c/0x130 mm/kasan/report.c:572
 profile_pc+0x118/0x130 arch/x86/kernel/time.c:44
 profile_tick+0xcd/0x130 kernel/profile.c:339
 tick_sched_timer+0xee/0x110 kernel/time/tick-sched.c:1481
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x1c0/0xbe0 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x320/0x7b0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x14a/0x430 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:queued_write_lock_slowpath+0x147/0x2d0 kernel/locking/qrwlock.c:85
Code: 00 00 00 fc ff df 49 01 c7 41 83 c6 03 41 0f b6 07 41 38 c6 7c 08 84 c0 0f 85 46 01 00 00 8b 45 00 3d 00 01 00 00 74 19 f3 90 <41> 0f b6 07 41 38 c6 7c eb 84 c0 74 e7 48 89 ef e8 d4 1c c2 f7 eb
RSP: 0018:ffffc90003787840 EFLAGS: 00000206
RAX: 00000000000001ff RBX: 1ffff920006f0f09 RCX: ffffffff8a131e5d
RDX: fffffbfff1c57f19 RSI: 0000000000000004 RDI: ffffffff8e2bf8c0
RBP: ffffffff8e2bf8c0 R08: 0000000000000001 R09: ffffffff8e2bf8c3
R10: fffffbfff1c57f18 R11: 0000000000000000 R12: ffffffff8e2bf8c4
R13: 00000000000000ff R14: 0000000000000003 R15: fffffbfff1c57f18
 queued_write_lock include/asm-generic/qrwlock.h:101 [inline]
 do_raw_write_lock+0x1d2/0x3b0 kernel/locking/spinlock_debug.c:210
 neigh_forced_gc net/core/neighbour.c:261 [inline]
 neigh_alloc net/core/neighbour.c:476 [inline]
 ___neigh_create+0x1195/0x2a40 net/core/neighbour.c:640
 ip6_finish_output2+0xfde/0x1560 net/ipv6/ip6_output.c:125
 __ip6_finish_output net/ipv6/ip6_output.c:195 [inline]
 ip6_finish_output+0x69a/0x1170 net/ipv6/ip6_output.c:206
 NF_HOOK_COND include/linux/netfilter.h:292 [inline]
 ip6_output+0x1f1/0x540 net/ipv6/ip6_output.c:227
 dst_output include/net/dst.h:458 [inline]
 NF_HOOK include/linux/netfilter.h:303 [inline]
 NF_HOOK include/linux/netfilter.h:297 [inline]
 mld_sendpack+0xa09/0xed0 net/ipv6/mcast.c:1820
 mld_send_cr net/ipv6/mcast.c:2121 [inline]
 mld_ifc_work+0x73c/0xe20 net/ipv6/mcast.c:2653
 process_one_work+0x99a/0x15e0 kernel/workqueue.c:2405
 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2552
 kthread+0x344/0x440 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>

The buggy address belongs to stack of task kworker/1:3/5053
 and is located at offset 0 in frame:
 queued_write_lock_slowpath+0x0/0x2d0

This frame has 1 object:
 [32, 36) 'val'

The buggy address belongs to the virtual mapping at
 [ffffc90003780000, ffffc90003789000) created by:
 kernel_clone+0xeb/0x890 kernel/fork.c:2915

The buggy address belongs to the physical page:
page:ffffea0000b2d7c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2cb5f
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2dc2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_ZERO), pid 2, tgid 2 (kthreadd), ts 64739056578, free_ts 31775836936
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2db/0x350 mm/page_alloc.c:1731
 prep_new_page mm/page_alloc.c:1738 [inline]
 get_page_from_freelist+0xf41/0x2c00 mm/page_alloc.c:3502
 __alloc_pages+0x1cb/0x4a0 mm/page_alloc.c:4768
 __alloc_pages_node include/linux/gfp.h:237 [inline]
 alloc_pages_node include/linux/gfp.h:260 [inline]
 vm_area_alloc_pages mm/vmalloc.c:3011 [inline]
 __vmalloc_area_node mm/vmalloc.c:3085 [inline]
 __vmalloc_node_range+0xa4d/0x14a0 mm/vmalloc.c:3257
 alloc_thread_stack_node kernel/fork.c:313 [inline]
 dup_task_struct kernel/fork.c:1116 [inline]
 copy_process+0x13bb/0x75c0 kernel/fork.c:2333
 kernel_clone+0xeb/0x890 kernel/fork.c:2915
 kernel_thread+0xc0/0x100 kernel/fork.c:2977
 create_kthread kernel/kthread.c:402 [inline]
 kthreadd+0x50c/0x790 kernel/kthread.c:737
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1302 [inline]
 free_unref_page_prepare+0x62e/0xcb0 mm/page_alloc.c:2564
 free_unref_page+0x33/0x370 mm/page_alloc.c:2659
 slab_destroy mm/slab.c:1612 [inline]
 slabs_destroy+0x85/0xc0 mm/slab.c:1632
 cache_flusharray mm/slab.c:3360 [inline]
 ___cache_free+0x2ae/0x3d0 mm/slab.c:3423
 qlink_free mm/kasan/quarantine.c:166 [inline]
 qlist_free_all+0x4f/0x1a0 mm/kasan/quarantine.c:185
 kasan_quarantine_reduce+0x195/0x220 mm/kasan/quarantine.c:292
 __kasan_slab_alloc+0x63/0x90 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:186 [inline]
 slab_post_alloc_hook mm/slab.h:711 [inline]
 slab_alloc_node mm/slab.c:3256 [inline]
 slab_alloc mm/slab.c:3265 [inline]
 __kmem_cache_alloc_lru mm/slab.c:3442 [inline]
 kmem_cache_alloc+0x1bd/0x3f0 mm/slab.c:3451
 vm_area_alloc+0x20/0x230 kernel/fork.c:489
 mmap_region+0x407/0x28d0 mm/mmap.c:2631
 do_mmap+0x831/0xf60 mm/mmap.c:1394
 vm_mmap_pgoff+0x1a2/0x3b0 mm/util.c:543
 ksys_mmap_pgoff+0x41f/0x5a0 mm/mmap.c:1440
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffffc90003787700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90003787780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90003787800: 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 04 f3 f3
                                              ^
 ffffc90003787880: f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1
 ffffc90003787900: f1 04 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00
==================================================================
----------------
Code disassembly (best guess), 5 bytes skipped:
   0:	df 49 01             	fisttps 0x1(%rcx)
   3:	c7 41 83 c6 03 41 0f 	movl   $0xf4103c6,-0x7d(%rcx)
   a:	b6 07                	mov    $0x7,%dh
   c:	41 38 c6             	cmp    %al,%r14b
   f:	7c 08                	jl     0x19
  11:	84 c0                	test   %al,%al
  13:	0f 85 46 01 00 00    	jne    0x15f
  19:	8b 45 00             	mov    0x0(%rbp),%eax
  1c:	3d 00 01 00 00       	cmp    $0x100,%eax
  21:	74 19                	je     0x3c
  23:	f3 90                	pause
* 25:	41 0f b6 07          	movzbl (%r15),%eax <-- trapping instruction
  29:	41 38 c6             	cmp    %al,%r14b
  2c:	7c eb                	jl     0x19
  2e:	84 c0                	test   %al,%al
  30:	74 e7                	je     0x19
  32:	48 89 ef             	mov    %rbp,%rdi
  35:	e8 d4 1c c2 f7       	callq  0xf7c21d0e
  3a:	eb                   	.byte 0xeb