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BUG: KASAN: stack-out-of-bounds in deref_stack_regs arch/x86/kernel/unwind_orc.c:304 [inline]
BUG: KASAN: stack-out-of-bounds in unwind_next_frame+0x146f/0x17d0 arch/x86/kernel/unwind_orc.c:437
Read of size 8 at addr ffff88806de37900 by task syz-executor.3/10112

CPU: 0 PID: 10112 Comm: syz-executor.3 Not tainted 4.14.303-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 print_address_description.cold+0x54/0x1d3 mm/kasan/report.c:252
 kasan_report_error.cold+0x8a/0x191 mm/kasan/report.c:351
 kasan_report mm/kasan/report.c:409 [inline]
 __asan_report_load8_noabort+0x68/0x70 mm/kasan/report.c:430
 deref_stack_regs arch/x86/kernel/unwind_orc.c:304 [inline]
 unwind_next_frame+0x146f/0x17d0 arch/x86/kernel/unwind_orc.c:437
 __save_stack_trace+0x90/0x160 arch/x86/kernel/stacktrace.c:44
 save_stack mm/kasan/kasan.c:447 [inline]
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551
 slab_post_alloc_hook mm/slab.h:442 [inline]
 slab_alloc_node mm/slab.c:3333 [inline]
 kmem_cache_alloc_node+0x133/0x410 mm/slab.c:3640
 __alloc_skb+0x5c/0x510 net/core/skbuff.c:193
 __napi_alloc_skb+0x57/0x2d0 net/core/skbuff.c:478
 napi_alloc_skb include/linux/skbuff.h:2721 [inline]
 page_to_skb+0x7b/0x820 drivers/net/virtio_net.c:323
 receive_mergeable drivers/net/virtio_net.c:723 [inline]
 receive_buf+0x1f71/0x4d70 drivers/net/virtio_net.c:828
 virtnet_receive drivers/net/virtio_net.c:1102 [inline]
 virtnet_poll+0x4b7/0x960 drivers/net/virtio_net.c:1193
 napi_poll net/core/dev.c:5604 [inline]
 net_rx_action+0x466/0xfd0 net/core/dev.c:5670
 __do_softirq+0x24d/0x9ff kernel/softirq.c:288
 invoke_softirq kernel/softirq.c:368 [inline]
 irq_exit+0x193/0x240 kernel/softirq.c:409
 exiting_irq arch/x86/include/asm/apic.h:638 [inline]
 do_IRQ+0x112/0x1d0 arch/x86/kernel/irq.c:242
 common_interrupt+0x93/0x93 arch/x86/entry/entry_64.S:578
 </IRQ>
RIP: 0010:arch_local_save_flags arch/x86/include/asm/paravirt.h:774 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/paravirt.h:796 [inline]
RIP: 0010:lock_acquire+0x97/0x3f0 kernel/locking/lockdep.c:3993
RSP: 0018:ffff88806de377a0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffffdd
RAX: 1ffffffff11e13d8 RBX: ffff8880972da240 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff8880972daac4
RBP: ffffffff88fec6e0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8880972da240 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
 pcpu_alloc+0x8e8/0xf50 mm/percpu.c:1380
 retint_kernel+0x2d/0x2d
RIP: 0000:0xffff8880972daa94
RSP: 14000c0:ffff88813fe74dc0 EFLAGS: ffffffff874009d1 ORIG_RAX: ffffffff831a8b65
RAX: ffff88823fff700f RBX: 0000000000000000 RCX: ffff88823fff7018
RDX: ffff88806de37918 RSI: 1ffffffff11997ac RDI: 0000000000000000
RBP: ffffffff81418d88 R08: ffff88823fff7017 R09: 000000150fac2b2c
R10: ffffffff81001bbe R11: ffff88806de37908 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

The buggy address belongs to the page:
page:ffffea0001b78dc0 count:0 mapcount:0 mapping:          (null) index:0x0
flags: 0xfff00000000000()
raw: 00fff00000000000 0000000000000000 0000000000000000 00000000ffffffff
raw: 0000000000000000 ffffea0001b78de0 0000000000000000 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff88806de37800: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1
 ffff88806de37880: 00 00 00 f2 00 00 00 f2 f2 f2 00 00 00 00 00 f3
>ffff88806de37900: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
                   ^
 ffff88806de37980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88806de37a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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