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hv: fix potential NULL pointer dereference in 'memcpy_s'

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'd' should be checked before calling 'memset()'.

Tracked-On: #5359
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
This commit is contained in:
Yonghua Huang 2020-09-27 14:50:16 +08:00 committed by wenlingz
parent e778acc3e0
commit ade53aa53a
1 changed files with 1 additions and 1 deletions
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hypervisor/arch/x86/lib/memory.c
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@ -53,7 +53,7 @@ int32_t memcpy_s(void *d, size_t dmax, const void *s, size_t slen)
memcpy_erms(d, s, slen);
}
ret = 0;
} else {
} else if (d != NULL) {
(void)memset(d, 0U, dmax);
}