netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'.
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BUG: KASAN: use-after-free in memcpy include/linux/string.h:377 [inline]
BUG: KASAN: use-after-free in memcpy_dir crypto/scatterwalk.c:28 [inline]
BUG: KASAN: use-after-free in scatterwalk_copychunks+0x271/0x6a0 crypto/scatterwalk.c:43
Read of size 4096 at addr ffff88801acb6000 by task syz-executor.3/17388

CPU: 1 PID: 17388 Comm: syz-executor.3 Not tainted 4.19.204-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256
 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354
 kasan_report+0x8f/0xa0 mm/kasan/report.c:412
 memcpy+0x20/0x50 mm/kasan/kasan.c:302
 memcpy include/linux/string.h:377 [inline]
 memcpy_dir crypto/scatterwalk.c:28 [inline]
 scatterwalk_copychunks+0x271/0x6a0 crypto/scatterwalk.c:43
 scatterwalk_map_and_copy crypto/scatterwalk.c:72 [inline]
 scatterwalk_map_and_copy+0x121/0x1a0 crypto/scatterwalk.c:60
 gcmaes_encrypt.constprop.0+0x760/0xd90 arch/x86/crypto/aesni-intel_glue.c:956

The buggy address belongs to the page:
page:ffffea00006b2d80 count:1 mapcount:0 mapping:ffff8880422ad7b8 index:0x1a2
flags: 0xfff00000000028(uptodate|lru)
raw: 00fff00000000028 ffffea00003fc248 ffffea00007a3388 ffff8880422ad7b8
raw: 00000000000001a2 0000000000000000 00000001ffffffff ffff8880b59f68c0
page dumped because: kasan: bad access detected
page->mem_cgroup:ffff8880b59f68c0

Memory state around the buggy address:
 ffff88801acb5f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88801acb5f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88801acb6000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                   ^
 ffff88801acb6080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88801acb6100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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