From: Thorsten Blum <thorsten.blum@linux.dev>
To: Mimi Zohar <zohar@linux.ibm.com>,
David Howells <dhowells@redhat.com>,
Jarkko Sakkinen <jarkko@kernel.org>,
Paul Moore <paul@paul-moore.com>,
James Morris <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>
Cc: linux-hardening@vger.kernel.org,
Thorsten Blum <thorsten.blum@linux.dev>,
linux-integrity@vger.kernel.org, keyrings@vger.kernel.org,
linux-security-module@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] keys: Replace deprecated strncpy in ecryptfs_fill_auth_tok
Date: Thu, 9 Oct 2025 20:03:17 +0200 [thread overview]
Message-ID: <20251009180316.394708-3-thorsten.blum@linux.dev> (raw)
strncpy() is deprecated for NUL-terminated destination buffers; use
strscpy_pad() instead.
Link: https://github.com/KSPP/linux/issues/90
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
security/keys/encrypted-keys/ecryptfs_format.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/security/keys/encrypted-keys/ecryptfs_format.c b/security/keys/encrypted-keys/ecryptfs_format.c
index 8fdd76105ce3..2fc6f3a66135 100644
--- a/security/keys/encrypted-keys/ecryptfs_format.c
+++ b/security/keys/encrypted-keys/ecryptfs_format.c
@@ -54,8 +54,7 @@ int ecryptfs_fill_auth_tok(struct ecryptfs_auth_tok *auth_tok,
auth_tok->version = (((uint16_t)(major << 8) & 0xFF00)
| ((uint16_t)minor & 0x00FF));
auth_tok->token_type = ECRYPTFS_PASSWORD;
- strncpy((char *)auth_tok->token.password.signature, key_desc,
- ECRYPTFS_PASSWORD_SIG_SIZE);
+ strscpy_pad(auth_tok->token.password.signature, key_desc);
auth_tok->token.password.session_key_encryption_key_bytes =
ECRYPTFS_MAX_KEY_BYTES;
/*
--
2.51.0
next reply other threads:[~2025-10-09 18:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-09 18:03 Thorsten Blum [this message]
2025-10-10 3:40 ` [PATCH] keys: Replace deprecated strncpy in ecryptfs_fill_auth_tok Jarkko Sakkinen
2025-10-10 15:12 ` Kees Cook
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