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Cast the unsigned char to unsigned int before shifting left 

This is needed to avoid automatic promotion to signed int.

Fixes #11853

[extended tests]

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11857)
This commit is contained in:
Tomas Mraz 2020-05-19 10:51:19 +02:00
parent ddec332f32
commit cbeb0bfa96
1 changed files with 4 additions and 4 deletions
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8
crypto/pem/pvkfmt.c
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@ -36,10 +36,10 @@ static unsigned int read_ledword(const unsigned char **in)
{
const unsigned char *p = *in;
unsigned int ret;
ret = *p++;
ret |= (*p++ << 8);
ret |= (*p++ << 16);
ret |= (*p++ << 24);
ret = (unsigned int)*p++;
ret |= (unsigned int)*p++ << 8;
ret |= (unsigned int)*p++ << 16;
ret |= (unsigned int)*p++ << 24;
*in = p;
return ret;
}