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pgcrypto: fix memset() calls that might be optimized away

Specifically, on-stack memset() might be removed, so:

	* Replace memset() with px_memset()
	* Add px_memset to copy_crlf()
	* Add px_memset to pgp-s2k.c

Patch by Marko Kreen

Report by PVS-Studio

Backpatch through 8.4.
This commit is contained in:
Bruce Momjian
2014-04-17 12:37:53 -04:00
parent 179c45ae2f
commit fc02b87e28
22 changed files with 81 additions and 68 deletions

View File

@ -75,6 +75,7 @@ calc_s2k_simple(PGP_S2K *s2k, PX_MD *md, const uint8 *key,
remain = 0;
}
}
px_memset(buf, 0, sizeof(buf));
return 0;
}
@ -118,6 +119,7 @@ calc_s2k_salted(PGP_S2K *s2k, PX_MD *md, const uint8 *key, unsigned key_len)
remain = 0;
}
}
px_memset(buf, 0, sizeof(buf));
return 0;
}
@ -189,6 +191,7 @@ calc_s2k_iter_salted(PGP_S2K *s2k, PX_MD *md, const uint8 *key,
remain = 0;
}
}
px_memset(buf, 0, sizeof(buf));
return 0;
}