user_main: vfork() test
=================================================================
==3754757==ERROR: AddressSanitizer: stack-buffer-underflow on address 0xae9126f0 at pc 0x56845661 bp 0xae912570 sp 0xae912560
READ of size 1 at 0xae9126f0 thread T0
#0 0x56845660 in memcpy string/lib_memcpy.c:44
#1 0x56b70f61 in up_vfork sim/sim_vfork.c:133
#2 0x567c0b85 in vfork (/home/ligd/platform/sim/nuttx/nuttx+0x26bb85)
0xae9126f0 is located 73456 bytes inside of 73728-byte region [0xae900800,0xae912800)
allocated by thread T0 here:
#0 0xf7ab1c2f in __interceptor_posix_memalign ../../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:226
SUMMARY: AddressSanitizer: stack-buffer-underflow string/lib_memcpy.c:44 in memcpy
Signed-off-by: ligd <liguiding1@xiaomi.com>