==================================================================
BUG: KASAN: stack-out-of-bounds in profile_pc+0x181/0x190 arch/x86/kernel/time.c:44
Read of size 8 at addr ffffc9000232fba0 by task strace-static-x/5056

CPU: 1 PID: 5056 Comm: strace-static-x Not tainted 6.8.0-rc1-next-20240125-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:488
 kasan_report+0xd9/0x110 mm/kasan/report.c:601
 profile_pc+0x181/0x190 arch/x86/kernel/time.c:44
 profile_tick+0xcd/0x130 kernel/profile.c:339
 tick_nohz_highres_handler+0xed/0x120 kernel/time/tick-sched.c:1519
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x657/0xc20 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline]
 __sysvec_apic_timer_interrupt+0x10f/0x410 arch/x86/kernel/apic/apic.c:1082
 sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:queued_read_lock_slowpath+0x135/0x2b1 kernel/locking/qrwlock.c:51
Code: 00 8b 03 84 c0 74 36 48 b8 00 00 00 00 00 fc ff df 49 89 de 48 89 dd 49 c1 ee 03 83 e5 07 49 01 c6 83 c5 03 f3 90 41 0f b6 06 <40> 38 c5 7c 08 84 c0 0f 85 1f 01 00 00 8b 03 84 c0 75 e7 48 c7 c0
RSP: 0018:ffffc9000232fb98 EFLAGS: 00000286
RAX: 0000000000000000 RBX: ffffffff8d20a080 RCX: ffffffff8abdde2b
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8d20a080
RBP: 0000000000000003 R08: 0000000000000001 R09: fffffbfff1a41410
R10: ffffffff8d20a083 R11: 0000000000000000 R12: 1ffff92000465f74
R13: ffffffff8d20a084 R14: fffffbfff1a41410 R15: ffffffff8151e8d9
 __do_wait+0x105/0x890 kernel/exit.c:1580
 do_wait+0x219/0x540 kernel/exit.c:1624
 kernel_wait4+0x16c/0x280 kernel/exit.c:1783
 __do_sys_wait4+0x15f/0x170 kernel/exit.c:1811
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x4d6ad6
Code: 00 00 00 90 31 c9 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 49 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 11 b8 3d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 90 48 83 ec 28 89 54 24 14 48 89 74 24
RSP: 002b:00007ffc07d13a48 EFLAGS: 00000246 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004d6ad6
RDX: 0000000040000000 RSI: 00007ffc07d13a6c RDI: 00000000ffffffff
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000009b5400
R13: 00007ffc07d13a6c R14: 00000000009b0610 R15: 000000000063f160
 </TASK>

The buggy address belongs to stack of task strace-static-x/5056
 and is located at offset 0 in frame:
 queued_read_lock_slowpath+0x0/0x2b1 arch/x86/include/asm/paravirt.h:584

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

The buggy address belongs to the virtual mapping at
 [ffffc90002328000, ffffc90002331000) created by:
 kernel_clone+0xfd/0x940 kernel/fork.c:2903

The buggy address belongs to the physical page:
page:ffffea0001f4c940 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7d325
flags: 0xfff80000000000(node=0|zone=1|lastcpupid=0xfff)
page_type: 0xffffffff()
raw: 00fff80000000000 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 4913, tgid 4913 (dhcpcd-run-hook), ts 57445374202, free_ts 57439160153
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2d4/0x350 mm/page_alloc.c:1533
 prep_new_page mm/page_alloc.c:1540 [inline]
 get_page_from_freelist+0xa19/0x3740 mm/page_alloc.c:3347
 __alloc_pages+0x22e/0x2420 mm/page_alloc.c:4603
 alloc_pages_mpol+0x275/0x610 mm/mempolicy.c:2232
 vm_area_alloc_pages mm/vmalloc.c:3454 [inline]
 __vmalloc_area_node mm/vmalloc.c:3530 [inline]
 __vmalloc_node_range+0xa6b/0x1540 mm/vmalloc.c:3711
 alloc_thread_stack_node kernel/fork.c:307 [inline]
 dup_task_struct kernel/fork.c:1112 [inline]
 copy_process+0x1502/0x96e0 kernel/fork.c:2328
 kernel_clone+0xfd/0x940 kernel/fork.c:2903
 __do_sys_clone+0xba/0x100 kernel/fork.c:3046
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
page last free pid 4922 tgid 4922 stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1140 [inline]
 free_unref_page_prepare+0x527/0xb10 mm/page_alloc.c:2382
 free_unref_page_list+0xe6/0xb50 mm/page_alloc.c:2568
 release_pages+0x32a/0x14f0 mm/swap.c:1042
 tlb_batch_pages_flush+0x9a/0x190 mm/mmu_gather.c:98
 tlb_flush_mmu_free mm/mmu_gather.c:293 [inline]
 tlb_flush_mmu mm/mmu_gather.c:300 [inline]
 tlb_finish_mmu+0x14b/0x6f0 mm/mmu_gather.c:392
 exit_mmap+0x40e/0xbe0 mm/mmap.c:3273
 __mmput+0x12a/0x4d0 kernel/fork.c:1343
 mmput+0x62/0x70 kernel/fork.c:1365
 exit_mm kernel/exit.c:569 [inline]
 do_exit+0x999/0x2ac0 kernel/exit.c:858
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1020
 __do_sys_exit_group kernel/exit.c:1031 [inline]
 __se_sys_exit_group kernel/exit.c:1029 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1029
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6d/0x75

Memory state around the buggy address:
 ffffc9000232fa80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc9000232fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc9000232fb80: 00 00 00 00 f1 f1 f1 f1 04 f3 f3 f3 00 00 00 00
                               ^
 ffffc9000232fc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc9000232fc80: 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00
==================================================================
----------------
Code disassembly (best guess):
   0:	00 8b 03 84 c0 74    	add    %cl,0x74c08403(%rbx)
   6:	36 48 b8 00 00 00 00 	ss movabs $0xdffffc0000000000,%rax
   d:	00 fc ff df
  11:	49 89 de             	mov    %rbx,%r14
  14:	48 89 dd             	mov    %rbx,%rbp
  17:	49 c1 ee 03          	shr    $0x3,%r14
  1b:	83 e5 07             	and    $0x7,%ebp
  1e:	49 01 c6             	add    %rax,%r14
  21:	83 c5 03             	add    $0x3,%ebp
  24:	f3 90                	pause
  26:	41 0f b6 06          	movzbl (%r14),%eax
* 2a:	40 38 c5             	cmp    %al,%bpl <-- trapping instruction
  2d:	7c 08                	jl     0x37
  2f:	84 c0                	test   %al,%al
  31:	0f 85 1f 01 00 00    	jne    0x156
  37:	8b 03                	mov    (%rbx),%eax
  39:	84 c0                	test   %al,%al
  3b:	75 e7                	jne    0x24
  3d:	48                   	rex.W
  3e:	c7                   	.byte 0xc7
  3f:	c0                   	.byte 0xc0