From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Mon, 20 Jul 2026 01:34:21 +0000 (+1000)
Subject: crypto: ccm - Set rfc4309 maxauthsize from child
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=438f4896f78f69ec73d5f32d2c024193f1223569;p=thirdparty%2Flinux.git

crypto: ccm - Set rfc4309 maxauthsize from child

Set the maxauthsize of rfc4309 using that of the child algorithm.

Fixes: 4a49b499dfa0 ("[CRYPTO] ccm: Added CCM mode")
Reported-by: Seohyeon Maeng <bioloidgp@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/crypto/ccm.c b/crypto/ccm.c
index 2ae929ffdef8..916441e4f2b8 100644
--- a/crypto/ccm.c
+++ b/crypto/ccm.c
@@ -747,7 +747,7 @@ static int crypto_rfc4309_create(struct crypto_template *tmpl,
 
 	inst->alg.ivsize = 8;
 	inst->alg.chunksize = crypto_aead_alg_chunksize(alg);
-	inst->alg.maxauthsize = 16;
+	inst->alg.maxauthsize = crypto_aead_alg_maxauthsize(alg);
 
 	inst->alg.base.cra_ctxsize = sizeof(struct crypto_rfc4309_ctx);