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crypto: ecrdsa - fix unknown OID check in ecrdsa_param_curve

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The ->curve_oid check in ecrdsa_param_curve() rejects the valid enum
value 0 (OID_id_dsa_with_sha1), but look_up_OID() returns OID__NR on
lookup failure. Compare ->curve_oid with OID__NR instead to ensure that
only unknown OIDs return -EINVAL.

Fixes: 0d7a78643f ("crypto: ecrdsa - add EC-RDSA (GOST 34.10) algorithm")
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Reviewed-by: Vitaly Chikunov <vt@altlinux.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Thorsten Blum 2026-05-02 21:09:04 +02:00 committed by Herbert Xu
parent c04337343e
commit 2d7b2cfc59
1 changed files with 1 additions and 1 deletions
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crypto/ecrdsa.c
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@ -145,7 +145,7 @@ int ecrdsa_param_curve(void *context, size_t hdrlen, unsigned char tag,
struct ecrdsa_ctx *ctx = context;
ctx->curve_oid = look_up_OID(value, vlen);
if (!ctx->curve_oid)
if (ctx->curve_oid == OID__NR)
return -EINVAL;
ctx->curve = get_curve_by_oid(ctx->curve_oid);
return 0;