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Memset on a local variable may be removed when it is called just before the variable goes out of scope. Using memzero_explicit defeats this optimization. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier x; type T; @@ { ... when any T x[...]; ... when any when exists - memset + memzero_explicit (x, -0, ...) ... when != x when strict } // </smpl> This change was suggested by Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> |
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| aes_glue.c | ||
| aes_glue.h | ||
| aes-armv4.S | ||
| aesbs-core.S_shipped | ||
| aesbs-glue.c | ||
| bsaes-armv7.pl | ||
| Makefile | ||
| sha1_glue.c | ||
| sha1_neon_glue.c | ||
| sha1-armv4-large.S | ||
| sha1-armv7-neon.S | ||
| sha512_neon_glue.c | ||
| sha512-armv7-neon.S | ||