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err: fix coverity 1452768: dereference after null check

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Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14638)
This commit is contained in:
Pauli 2021-03-22 11:42:35 +10:00
parent 711d7ca594
commit a60b533125
1 changed files with 3 additions and 1 deletions
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4
crypto/err/err_blocks.c
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@ -92,7 +92,8 @@ void ERR_vset_error(int lib, int reason, const char *fmt, va_list args)
}
if (printed_len < 0)
printed_len = 0;
buf[printed_len] = '\0';
if (buf != NULL)
buf[printed_len] = '\0';
/*
* Try to reduce the size, but only if we maximized above. If that
@ -103,6 +104,7 @@ void ERR_vset_error(int lib, int reason, const char *fmt, va_list args)
if ((rbuf = OPENSSL_realloc(buf, printed_len + 1)) != NULL) {
buf = rbuf;
buf_size = printed_len + 1;
buf[printed_len] = '\0';
}
if (buf != NULL)