Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0DB8D38B7C4; Mon, 23 Mar 2026 16:22:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774282956; cv=none; b=D3pHpFFkDvJ1imBdVBeMykO1kKbDN22FJQ4EUo6QbWvhK1uqEQAmXNKhkuENuThOwHuiv4dZ42nQgqR8mBGh4SD03Fnnz6NEbntmtAuHN9mD7gQghFIVLhf4kUcbw4hN69I280T6oBbvSKCqUk0o28Zb+ixIF4XOQc/BQHCSMK8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774282956; c=relaxed/simple; bh=311MuOeqe+Kcxa2VdaK5MdbAKl470hJFhFMdFkI/8ys=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WVB8TL7EALwJHOvv3/bgkqHPEiVtidNNJXFDZEMGFoZUaE/30ZFyEOGwzTa145CQe5aBTv8yofiDoc0dH6Xasbsfk38uOLVhlBAV36cxjF67sErmSNddiRewDG3AgOTWwjEcGW/Ssvv4j49IaOHxOc56skzkVUXutNvn5DGDMos= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=fFG5r9i8; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="fFG5r9i8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 914B6C4CEF7; Mon, 23 Mar 2026 16:22:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1774282955; bh=311MuOeqe+Kcxa2VdaK5MdbAKl470hJFhFMdFkI/8ys=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fFG5r9i8+N9ZBwjo0dvBqyNuz31ODDkq3EZiGJbk2x3pUDUe6t3o5u+FKlTTbuBR+ yE/Nyu+ETINNKXVm8iACSil0Fxu15qGl8Zg9jo5h5YTMswrvn4UBJNk7N+kC/d27R8 Hrz4inW4IANTU6SIsb1ALiZDDG0ASbuC9tMWdXGc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Thorsten Blum , Herbert Xu , Sasha Levin Subject: [PATCH 6.1 348/481] crypto: atmel-sha204a - Fix OOM ->tfm_count leak Date: Mon, 23 Mar 2026 14:45:30 +0100 Message-ID: <20260323134533.582350787@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260323134525.256603107@linuxfoundation.org> References: <20260323134525.256603107@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Thorsten Blum [ Upstream commit d240b079a37e90af03fd7dfec94930eb6c83936e ] If memory allocation fails, decrement ->tfm_count to avoid blocking future reads. Cc: stable@vger.kernel.org Fixes: da001fb651b0 ("crypto: atmel-i2c - add support for SHA204A random number generator") Signed-off-by: Thorsten Blum Signed-off-by: Herbert Xu [ adapted kmalloc_obj() macro to kmalloc(sizeof()) ] Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/crypto/atmel-sha204a.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- a/drivers/crypto/atmel-sha204a.c +++ b/drivers/crypto/atmel-sha204a.c @@ -52,9 +52,10 @@ static int atmel_sha204a_rng_read_nonblo rng->priv = 0; } else { work_data = kmalloc(sizeof(*work_data), GFP_ATOMIC); - if (!work_data) + if (!work_data) { + atomic_dec(&i2c_priv->tfm_count); return -ENOMEM; - + } work_data->ctx = i2c_priv; work_data->client = i2c_priv->client;