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Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

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Pull crypto fixes from Herbert Xu:
 "This fixes a functional bug in arm/chacha-neon as well as a potential
  buffer overflow in ecdh"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: ecdh - avoid buffer overflow in ecdh_set_secret()
  crypto: arm/chacha-neon - add missing counter increment
This commit is contained in:
Linus Torvalds 2021-01-08 12:05:11 -08:00
commit ea1c87c156
2 changed files with 3 additions and 1 deletions
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1
arch/arm/crypto/chacha-glue.c
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@ -60,6 +60,7 @@ static void chacha_doneon(u32 *state, u8 *dst, const u8 *src,
chacha_block_xor_neon(state, d, s, nrounds);
if (d != dst)
memcpy(dst, buf, bytes);
state[12]++;
}
}

3
crypto/ecdh.c
View File

@ -39,7 +39,8 @@ static int ecdh_set_secret(struct crypto_kpp *tfm, const void *buf,
struct ecdh params;
unsigned int ndigits;
if (crypto_ecdh_decode_key(buf, len, &params) < 0)
if (crypto_ecdh_decode_key(buf, len, &params) < 0 ||
params.key_size > sizeof(ctx->private_key))
return -EINVAL;
ndigits = ecdh_supported_curve(params.curve_id);