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crypto: drbg - Fix returning success on failure in CTR_DRBG

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drbg_ctr_generate() sometimes returns success when it fails, leaving the
output buffer uninitialized.  Fix it.

Fixes: cde001e4c3 ("crypto: rng - RNGs must return 0 in success case")
Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Eric Biggers 2026-04-19 23:33:45 -07:00 committed by Herbert Xu
parent edcc5d486a
commit 39a31ad9e2
1 changed files with 1 additions and 1 deletions
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crypto/drbg.c
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@ -377,7 +377,7 @@ static int drbg_ctr_generate(struct drbg_state *drbg,
if (addtl && !list_empty(addtl)) {
ret = drbg_ctr_update(drbg, addtl, 2);
if (ret)
return 0;
return ret;
}
/* 10.2.1.5.2 step 4.1 */