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BUG: KASAN: stack-out-of-bounds in profile_pc+0xa4/0xe0 arch/x86/kernel/time.c:42
Read of size 8 at addr ffff8881e0656f40 by task sshd/351

CPU: 0 PID: 351 Comm: sshd Not tainted 5.4.242-syzkaller-00020-g6d5c2c1877e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d8/0x241 lib/dump_stack.c:118
 print_address_description+0x8c/0x600 mm/kasan/report.c:384
 __kasan_report+0xf3/0x120 mm/kasan/report.c:516
 kasan_report+0x30/0x60 mm/kasan/common.c:653
 profile_pc+0xa4/0xe0 arch/x86/kernel/time.c:42
 profile_tick+0xb9/0x100 kernel/profile.c:416
 tick_sched_handle kernel/time/tick-sched.c:172 [inline]
 tick_sched_timer+0x237/0x3e0 kernel/time/tick-sched.c:1296
 __run_hrtimer kernel/time/hrtimer.c:1581 [inline]
 __hrtimer_run_queues+0x3e9/0xb90 kernel/time/hrtimer.c:1643
 hrtimer_interrupt+0x38a/0x890 kernel/time/hrtimer.c:1705
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1123 [inline]
 smp_apic_timer_interrupt+0x110/0x460 arch/x86/kernel/apic/apic.c:1148
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>

The buggy address belongs to the page:
page:ffffea0007819580 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0
flags: 0x8000000000000000()
raw: 8000000000000000 0000000000000000 ffffea0007819588 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x400dc0(GFP_KERNEL_ACCOUNT|__GFP_ZERO)
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook mm/page_alloc.c:2165 [inline]
 prep_new_page+0x18f/0x370 mm/page_alloc.c:2171
 get_page_from_freelist+0x2d13/0x2d90 mm/page_alloc.c:3794
 __alloc_pages_nodemask+0x393/0x840 mm/page_alloc.c:4891
 __alloc_pages include/linux/gfp.h:503 [inline]
 __alloc_pages_node include/linux/gfp.h:516 [inline]
 alloc_pages_node include/linux/gfp.h:530 [inline]
 alloc_thread_stack_node kernel/fork.c:259 [inline]
 dup_task_struct+0x85/0x600 kernel/fork.c:878
 copy_process+0x56d/0x3230 kernel/fork.c:1881
 _do_fork+0x197/0x900 kernel/fork.c:2396
 __do_sys_clone kernel/fork.c:2554 [inline]
 __se_sys_clone kernel/fork.c:2535 [inline]
 __x64_sys_clone+0x26b/0x2c0 kernel/fork.c:2535
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1176 [inline]
 __free_pages_ok+0x847/0x950 mm/page_alloc.c:1438
 put_page include/linux/mm.h:1151 [inline]
 __skb_frag_unref include/linux/skbuff.h:3046 [inline]
 skb_release_data+0x210/0x640 net/core/skbuff.c:615
 skb_release_all net/core/skbuff.c:675 [inline]
 __kfree_skb+0x4c/0x60 net/core/skbuff.c:689
 sk_eat_skb include/net/sock.h:2530 [inline]
 tcp_recvmsg+0x174c/0x35b0 net/ipv4/tcp.c:2180
 inet_recvmsg+0x158/0x510 net/ipv4/af_inet.c:842
 sock_recvmsg_nosec net/socket.c:872 [inline]
 sock_recvmsg net/socket.c:890 [inline]
 sock_read_iter+0x34e/0x430 net/socket.c:968
 call_read_iter include/linux/fs.h:1975 [inline]
 new_sync_read fs/read_write.c:414 [inline]
 __vfs_read+0x5cd/0x730 fs/read_write.c:427
 vfs_read+0x148/0x360 fs/read_write.c:461
 ksys_read+0x199/0x2c0 fs/read_write.c:587
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1

addr ffff8881e0656f40 is located in stack of task sshd/351 at offset 0 in frame:
 _raw_spin_trylock+0x0/0x1a0

this frame has 1 object:
 [32, 36) 'val.i.i.i'

Memory state around the buggy address:
 ffff8881e0656e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8881e0656e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8881e0656f00: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 04 f3 f3 f3
                                           ^
 ffff8881e0656f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8881e0657000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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