From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 1164F408617; Mon, 17 Aug 2026 14:42:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786977743; cv=none; b=bExc7+cPiZS8aZosR3NOTXxLAdZ2c/oYelxX+UErktclY6eA2erLQaXkwII0tl3MZBgyFUfyFBKvFsl9AdlSHUIBD+C4I8y0JreY03570is4gI+Hx0hXshaGIDRIWNhN/MMH/dHNcu7JEzo3KSwPKu0JHUsbhxmXMfNBoz5vB0g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786977743; c=relaxed/simple; bh=YPDRGIUW88UUdreKugCfekfmy0o9YYpYG766jHldn8E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=i3kad37rQVaqDmXSNdpJjzTInhXB+injDB/I4N9Hn05/QZZHAMt5GVD8PaAf5flHWuLxZkdFQBLNIPrE+dTF2hsBx2G/sWxdGP64zoXTeEg9LCu2rBaRn1F4cWMWZsrua4Xw6s5YAId62j+aU9S3eQRl7PagglTh9e8Vw8u9oe4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=HK0zBSbb; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="HK0zBSbb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6BF251F000E9; Mon, 17 Aug 2026 14:42:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786977742; bh=ICKW+YnFeBGr51QKXDx6HU59XsdV0ck9CXaFaTHqqgE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=HK0zBSbb6+sI30ndap7h2F3MsVbFEQioSVZOejTvjQECD6DegxPDv0CXm1W3FD/4q k7aCQ20xWwZFO4HyLrdL3brSqck2zkX6+XElTrvN49KBAKHPd2HsSBuLqP6FIz6rdK iq5Ya486JxCtTqOixIyPKxwz9DcWwhWi91e6WuQY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Eddie Lin , Ekansh Gupta , Srinivas Kandagatla Subject: [PATCH 5.15 433/456] misc: fastrpc: fix memory leak in fastrpc_channel_ctx_free Date: Mon, 17 Aug 2026 15:33:43 +0200 Message-ID: <20260817132556.067307109@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260817132539.792407575@linuxfoundation.org> References: <20260817132539.792407575@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 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Eddie Lin commit 2fae94ee14f7fea11d3f95e10383a87c01d21518 upstream. The 'ctx_idr' is initialized but never destroyed when the channel context is freed, leading to a memory leak. Add idr_destroy() to properly clean up the IDR resources. Fixes: f6f9279f2bf0 ("misc: fastrpc: Add Qualcomm fastrpc basic driver model") Cc: stable@vger.kernel.org Signed-off-by: Eddie Lin Reviewed-by: Ekansh Gupta Signed-off-by: Srinivas Kandagatla Link: https://patch.msgid.link/20260724223342.629168-6-srini@kernel.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Greg Kroah-Hartman --- drivers/misc/fastrpc.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/misc/fastrpc.c +++ b/drivers/misc/fastrpc.c @@ -342,6 +342,7 @@ static void fastrpc_channel_ctx_free(str cctx = container_of(ref, struct fastrpc_channel_ctx, refcount); + idr_destroy(&cctx->ctx_idr); kfree(cctx); }