1MEMZERO_EXPLICIT(9)        Basic C Library Functions       MEMZERO_EXPLICIT(9)
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NAME

6       memzero_explicit - Fill a region of memory (e.g. sensitive keying data)
7       with 0s.
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SYNOPSIS

10       void memzero_explicit(void * s, size_t count);
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ARGUMENTS

13       s
14           Pointer to the start of the area.
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16       count
17           The size of the area.
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NOTE

20       usually using memset is just fine (!), but in cases where clearing out
21       _local_ data at the end of a scope is necessary, memzero_explicit
22       should be used instead in order to prevent the compiler from optimising
23       away zeroing.
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25       memzero_explicit doesn't need an arch-specific version as it just
26       invokes the one of memset implicitly.
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29Kernel Hackers Manual 3.10         June 2019               MEMZERO_EXPLICIT(9)
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