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Fix memsan build with clang 11

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Memsan build was reporting a false positive use of uninitialised memory
in x509_crt.c on a struct filled by an _stat function call. According to
the man pages, the element reported has to be filled in by the call, so
to be safe, and keep memsan happy, zero the struct first.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
This commit is contained in:
Paul Elliott 2021-03-05 14:17:51 +00:00
parent 477a463684
commit fb91a48616
2 changed files with 4 additions and 0 deletions
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2
ChangeLog.d/fix_memsan_build_clang11.txt Normal file
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@ -0,0 +1,2 @@
Changes
* Fix memsan build false positive in x509_crt.c with clang 11

2
library/x509_crt.c
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@ -1629,6 +1629,8 @@ cleanup:
}
#endif /* MBEDTLS_THREADING_C */
memset( &sb, 0, sizeof( sb ) );
while( ( entry = readdir( dir ) ) != NULL )
{
snp_ret = mbedtls_snprintf( entry_name, sizeof entry_name,