From: Eric Biggers <ebiggers@kernel.org>
To: linux-crypto@vger.kernel.org, Herbert Xu <herbert@gondor.apana.org.au>
Cc: Richard Weinberger <richard@nod.at>,
linux-kernel@vger.kernel.org, Eric Biggers <ebiggers@kernel.org>
Subject: [PATCH 1/3] crypto: af_alg - Make cbc(paes) privileged-only
Date: Sun, 2 Aug 2026 16:00:53 -0700 [thread overview]
Message-ID: <20260802230055.100746-2-ebiggers@kernel.org> (raw)
In-Reply-To: <20260802230055.100746-1-ebiggers@kernel.org>
So far the only reported use cases for cbc(paes) have involved processes
running as root. Therefore, make af_alg_restrict=1 allow only
privileged use of this algorithm for now.
Fixes: 947d62c09436 ("Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6")
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
---
crypto/algif_skcipher.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index 4c86b1993bde..68b48d805e92 100644
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -41,7 +41,7 @@ static const struct af_alg_allowlist_entry skcipher_allowlist[] = {
{ "cbc(aes)", true }, /* iwd */
{ "cbc(des)", true }, /* iwd */
{ "cbc(des3_ede)", true }, /* iwd */
- { "cbc(paes)", false }, /* caam and others */
+ { "cbc(paes)", true }, /* caam and others */
{ "ctr(aes)", true }, /* iwd */
{ "ecb(aes)", true }, /* iwd, bluez */
{ "ecb(des)", true }, /* iwd */
--
2.55.0
next prev parent reply other threads:[~2026-08-02 23:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-02 23:00 [PATCH 0/3] crypto: af_alg_restrict cleanups Eric Biggers
2026-08-02 23:00 ` Eric Biggers [this message]
2026-08-04 6:39 ` [PATCH 1/3] crypto: af_alg - Make cbc(paes) privileged-only Richard Weinberger
2026-08-02 23:00 ` [PATCH 2/3] crypto: af_alg - Replace 'bool privileged' with flags Eric Biggers
2026-08-02 23:00 ` [PATCH 3/3] crypto: af_alg - Stop after finding name in allowlist Eric Biggers
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