==================================================================
BUG: KASAN: stack-out-of-bounds in profile_pc+0xa4/0xe0 arch/x86/kernel/time.c:42
Read of size 8 at addr ffffc90004ebf300 by task syz.2.69/3850

CPU: 0 PID: 3850 Comm: syz.2.69 Not tainted 6.1.96-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:284 [inline]
 print_report+0x15f/0x4f0 mm/kasan/report.c:395
 kasan_report+0x136/0x160 mm/kasan/report.c:495
 profile_pc+0xa4/0xe0 arch/x86/kernel/time.c:42
 profile_tick+0xee/0x170 kernel/profile.c:339
 tick_sched_handle kernel/time/tick-sched.c:255 [inline]
 tick_sched_timer+0x390/0x550 kernel/time/tick-sched.c:1501
 __run_hrtimer kernel/time/hrtimer.c:1686 [inline]
 __hrtimer_run_queues+0x5a7/0xe50 kernel/time/hrtimer.c:1750
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 c2 b8 4c f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 67 06 c9 f6 65 8b 05 08 13 6d 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc90004ebf300 EFLAGS: 00000206
RAX: 52e359d82b3b9800 RBX: 1ffff920009d7e64 RCX: ffffffff91c94103
RDX: dffffc0000000000 RSI: ffffffff8aec0240 RDI: 0000000000000001
RBP: ffffc90004ebf388 R08: dffffc0000000000 R09: ffffed100b627f51
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff920009d7e60 R14: ffffc90004ebf320 R15: 0000000000000246
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 snd_seq_timer_start+0x384/0x4d0 sound/core/seq/seq_timer.c:406
 snd_seq_queue_process_event sound/core/seq/seq_queue.c:660 [inline]
 snd_seq_control_queue+0x312/0x1a10 sound/core/seq/seq_queue.c:721
 snd_seq_deliver_single_event+0x529/0xc70 sound/core/seq/seq_clientmgr.c:638
 snd_seq_deliver_event+0x247/0x950 sound/core/seq/seq_clientmgr.c:839
 snd_seq_kernel_client_dispatch+0x200/0x2f0 sound/core/seq/seq_clientmgr.c:2337
 send_timer_event sound/core/seq/oss/seq_oss_timer.c:140 [inline]
 snd_seq_oss_timer_start+0x3b8/0x730 sound/core/seq/oss/seq_oss_timer.c:161
 insert_queue sound/core/seq/oss/seq_oss_rw.c:167 [inline]
 snd_seq_oss_write+0x534/0xba0 sound/core/seq/oss/seq_oss_rw.c:135
 odev_write+0x5a/0x80 sound/core/seq/oss/seq_oss.c:168
 vfs_write+0x2d9/0xba0 fs/read_write.c:582
 ksys_write+0x19c/0x2c0 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f49b9375f19
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:00007f49b91ff048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f49b9503f60 RCX: 00007f49b9375f19
RDX: 0000000000000253 RSI: 0000000020000680 RDI: 0000000000000003
RBP: 00007f49b93e4bcd R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f49b9503f60 R15: 00007ffd07a15498
 </TASK>

The buggy address belongs to stack of task syz.2.69/3850
 and is located at offset 0 in frame:
 _raw_spin_unlock_irqrestore+0x0/0x130

This frame has 1 object:
 [32, 40) 'flags.i.i.i.i'

The buggy address belongs to the virtual mapping at
 [ffffc90004eb8000, ffffc90004ec1000) created by:
 copy_process+0x637/0x4060 kernel/fork.c:2098

The buggy address belongs to the physical page:
page:ffffea0000860400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x21810
memcg:ffff888024f6bf02
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff ffff888024f6bf02
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102dc2(GFP_HIGHUSER|__GFP_NOWARN|__GFP_ZERO), pid 3846, tgid 3846 (syz.2.69), ts 78888580414, free_ts 78742684423
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2513
 prep_new_page mm/page_alloc.c:2520 [inline]
 get_page_from_freelist+0x31a1/0x3320 mm/page_alloc.c:4279
 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5547
 vm_area_alloc_pages mm/vmalloc.c:2992 [inline]
 __vmalloc_area_node mm/vmalloc.c:3068 [inline]
 __vmalloc_node_range+0x92b/0x1490 mm/vmalloc.c:3240
 alloc_thread_stack_node kernel/fork.c:311 [inline]
 dup_task_struct+0x3e5/0x6d0 kernel/fork.c:988
 copy_process+0x637/0x4060 kernel/fork.c:2098
 kernel_clone+0x222/0x920 kernel/fork.c:2682
 __do_sys_clone3 kernel/fork.c:2981 [inline]
 __se_sys_clone3+0x373/0x410 kernel/fork.c:2965
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1440 [inline]
 free_pcp_prepare mm/page_alloc.c:1490 [inline]
 free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3358
 free_unref_page+0x33/0x3e0 mm/page_alloc.c:3453
 tdp_mmu_free_sp arch/x86/kvm/mmu/tdp_mmu.c:67 [inline]
 tdp_mmu_free_sp_rcu_callback+0x42/0x80 arch/x86/kvm/mmu/tdp_mmu.c:84
 rcu_do_batch kernel/rcu/tree.c:2296 [inline]
 rcu_core+0xad5/0x1810 kernel/rcu/tree.c:2556
 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571
 run_ksoftirqd+0xc6/0x120 kernel/softirq.c:938
 smpboot_thread_fn+0x52c/0xa30 kernel/smpboot.c:164
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

Memory state around the buggy address:
 ffffc90004ebf200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90004ebf280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90004ebf300: f1 f1 f1 f1 00 f3 f3 f3 00 00 00 00 00 00 00 00
                   ^
 ffffc90004ebf380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90004ebf400: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1
==================================================================
----------------
Code disassembly (best guess):
   0:	9c                   	pushf
   1:	8f 44 24 20          	pop    0x20(%rsp)
   5:	42 80 3c 23 00       	cmpb   $0x0,(%rbx,%r12,1)
   a:	74 08                	je     0x14
   c:	4c 89 f7             	mov    %r14,%rdi
   f:	e8 c2 b8 4c f7       	call   0xf74cb8d6
  14:	f6 44 24 21 02       	testb  $0x2,0x21(%rsp)
  19:	75 4e                	jne    0x69
  1b:	41 f7 c7 00 02 00 00 	test   $0x200,%r15d
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 67 06 c9 f6       	call   0xf6c90696 <-- trapping instruction
  2f:	65 8b 05 08 13 6d 75 	mov    %gs:0x756d1308(%rip),%eax        # 0x756d133e
  36:	85 c0                	test   %eax,%eax
  38:	74 3f                	je     0x79
  3a:	48                   	rex.W
  3b:	c7                   	.byte 0xc7
  3c:	04 24                	add    $0x24,%al
  3e:	0e                   	(bad)
  3f:	36                   	ss