From mboxrd@z Thu Jan 1 00:00:00 1970 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 CE11C313298; Mon, 13 Apr 2026 16:51:41 +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=1776099101; cv=none; b=tIM00VX6fhL9a1GgPNa+3XS6cAWGrAeiABzdeveBuCMM83cK6+M8cCDqsxMxKenx9haJtP8nDt9LzXDII9ZrHyE2x6e3JE6Cr/uLnOwqTKDVn+4tIyEz61IHBvS0Hl9KDNrDJGAl6seBE5MX0FiY07Aelp+Wl23W/6QEbWEMyfk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776099101; c=relaxed/simple; bh=X2oHp2ePKIMxne7IMsxfF9+jANnyWKgPSS+hXbO1Sr8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gGUIRA+qFrbHUG7uhREYVOtfKqLH8ioujRHLCIhByzPrOxvigPqn8HdSrTuscB/9fioGDKCkc6eWe3jxI0oNL2jYQdVF+VSXM47X4LmKdGwnVzGsjkhdZW+uJcJ07nD2IwjvLEvuWHk49QtyTP876/fU5/BGxFsN8GIlut+N+64= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=bdvimBQJ; 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="bdvimBQJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2AE25C2BCAF; Mon, 13 Apr 2026 16:51:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1776099101; bh=X2oHp2ePKIMxne7IMsxfF9+jANnyWKgPSS+hXbO1Sr8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bdvimBQJRSOOBRUFMKiAiq43nLD8icGpDae2SlvkZY5S8PnTVN8YXRhqbt/fr9/qT u4bh075ORAsb06zfjTAOKixqkm1NJF3GKEhiBFW0RMuf/YW2AsFC69MUjOW8ssOta9 SedZ4Ysm8yTULcV67OkRQty2wPSQcFer7m4kBmmQ= 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 5.10 179/491] crypto: atmel-sha204a - Fix OOM ->tfm_count leak Date: Mon, 13 Apr 2026 17:57:04 +0200 Message-ID: <20260413155825.756284054@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260413155819.042779211@linuxfoundation.org> References: <20260413155819.042779211@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 5.10-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;