==================================================================
BUG: KASAN: stack-out-of-bounds in profile_pc+0xd2/0x170 arch/x86/kernel/time.c:42
Read of size 8 at addr ffffc90009f87540 by task syz.4.1734/11093

CPU: 1 PID: 11093 Comm: syz.4.1734 Not tainted 6.10.0-rc5-syzkaller-00175-g6d6444ba8205 #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+0x241/0x360 lib/dump_stack.c:114
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:488
 kasan_report+0x143/0x180 mm/kasan/report.c:601
 profile_pc+0xd2/0x170 arch/x86/kernel/time.c:42
 profile_tick+0xd7/0x150 kernel/profile.c:339
 tick_sched_handle kernel/time/tick-sched.c:277 [inline]
 tick_nohz_handler+0x386/0x500 kernel/time/tick-sched.c:297
 __run_hrtimer kernel/time/hrtimer.c:1687 [inline]
 __hrtimer_run_queues+0x551/0xd50 kernel/time/hrtimer.c:1751
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1813
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 be 78 70 f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> a3 7f dd f5 65 8b 05 e4 b7 7b 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc90009f87540 EFLAGS: 00000206
RAX: 833bfda0812f1e00 RBX: 1ffff920013f0eac RCX: ffffffff8172d8fa
RDX: dffffc0000000000 RSI: ffffffff8bcabb40 RDI: 0000000000000001
RBP: ffffc90009f875d0 R08: ffffffff92f7162f R09: 1ffffffff25ee2c5
R10: dffffc0000000000 R11: fffffbfff25ee2c6 R12: dffffc0000000000
R13: 1ffff920013f0ea8 R14: ffffc90009f87560 R15: 0000000000000246
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 __skb_try_recv_datagram+0x1cb/0x6a0 net/core/datagram.c:266
 __unix_dgram_recvmsg+0x3ba/0x12f0 net/unix/af_unix.c:2388
 sock_recvmsg_nosec+0x18e/0x1d0 net/socket.c:1046
 ____sys_recvmsg+0x3c0/0x470 net/socket.c:2802
 ___sys_recvmsg net/socket.c:2846 [inline]
 do_recvmmsg+0x474/0xae0 net/socket.c:2940
 __sys_recvmmsg net/socket.c:3019 [inline]
 __do_sys_recvmmsg net/socket.c:3042 [inline]
 __se_sys_recvmmsg net/socket.c:3035 [inline]
 __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3035
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fed16375b29
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:00007fed17174048 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007fed16504070 RCX: 00007fed16375b29
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000008
RBP: 00007fed163f6756 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fed16504070 R15: 00007ffefaf88c78
 </TASK>

The buggy address belongs to stack of task syz.4.1734/11093
 and is located at offset 0 in frame:
 _raw_spin_unlock_irqrestore+0x0/0x140 kernel/locking/spinlock.c:187

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

The buggy address belongs to the virtual mapping at
 [ffffc90009f80000, ffffc90009f89000) created by:
 copy_process+0x5d1/0x3dc0 kernel/fork.c:2220

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x2 pfn:0x6071b
memcg:ffff8880737e3302
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000002 0000000000000000 00000001ffffffff ffff8880737e3302
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 11082, tgid 11080 (syz.4.1731), ts 494850018050, free_ts 490903081513
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1473
 prep_new_page mm/page_alloc.c:1481 [inline]
 get_page_from_freelist+0x2e4c/0x2f10 mm/page_alloc.c:3425
 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4683
 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
 vm_area_alloc_pages mm/vmalloc.c:3575 [inline]
 __vmalloc_area_node mm/vmalloc.c:3651 [inline]
 __vmalloc_node_range_noprof+0x971/0x1460 mm/vmalloc.c:3832
 alloc_thread_stack_node kernel/fork.c:309 [inline]
 dup_task_struct+0x444/0x8c0 kernel/fork.c:1115
 copy_process+0x5d1/0x3dc0 kernel/fork.c:2220
 kernel_clone+0x223/0x870 kernel/fork.c:2797
 __do_sys_clone kernel/fork.c:2940 [inline]
 __se_sys_clone kernel/fork.c:2924 [inline]
 __x64_sys_clone+0x258/0x2a0 kernel/fork.c:2924
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 50 tgid 50 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1093 [inline]
 free_unref_page+0xd19/0xea0 mm/page_alloc.c:2588
 __slab_free+0x31b/0x3d0 mm/slub.c:4349
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x9e/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3940 [inline]
 slab_alloc_node mm/slub.c:4002 [inline]
 kmalloc_trace_noprof+0x132/0x2c0 mm/slub.c:4149
 kmalloc_noprof include/linux/slab.h:660 [inline]
 gro_cells_destroy+0x300/0x3d0 net/core/gro_cells.c:126
 ip_tunnel_dev_free+0x19/0x60 net/ipv4/ip_tunnel.c:1100
 netdev_run_todo+0xe1a/0x1000 net/core/dev.c:10693
 cleanup_net+0x762/0xcc0 net/core/net_namespace.c:636
 process_one_work kernel/workqueue.c:3248 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329
 worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Memory state around the buggy address:
 ffffc90009f87400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90009f87480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90009f87500: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 f3 f3 f3
                                           ^
 ffffc90009f87580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90009f87600: 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 be 78 70 f6       	call   0xf67078d2
  14:	f6 44 24 21 02       	testb  $0x2,0x21(%rsp)
  19:	75 52                	jne    0x6d
  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 a3 7f dd f5       	call   0xf5dd7fd2 <-- trapping instruction
  2f:	65 8b 05 e4 b7 7b 74 	mov    %gs:0x747bb7e4(%rip),%eax        # 0x747bb81a
  36:	85 c0                	test   %eax,%eax
  38:	74 43                	je     0x7d
  3a:	48                   	rex.W
  3b:	c7                   	.byte 0xc7
  3c:	04 24                	add    $0x24,%al
  3e:	0e                   	(bad)
  3f:	36                   	ss