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 BA4C3282F1C; Mon, 17 Aug 2026 13:59:05 +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=1786975146; cv=none; b=US8neJRW74xvTBBHPj/Ab71+96K+DwB8Ple8FifCdFwkGpax/Hbxa0dnK46zHqQdSs616Yd4Nt9Cr/uUsT63q5/cRejqvTlmBUozBqie0ffSbiv97jzYQq1wcXZixqAAEJayTa+JLVNBqI9R4J/FqkhQxJNWmQ9aCXm+Hg3HmhA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786975146; c=relaxed/simple; bh=GD0f8NpVGVkJqum9L2BsWmx/lQfPCDcEUBVac5Uk6x4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=SqQns6EFDRqvg+GSb7sh3rA9pzhDXeDLIxyDg4bFo99Mmyz8V3y6i9vsYZ1JvxiOShT8LBjYNE0WZHCXb1+P/dR1tvXR7Pst+DwB0tbtGT/n2k+JMqKZ5LUz5Od3TmNYMudPFHuFumRTp4GmaUboK3u+TK7vSrW6Ke7xMiDOoVE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=cR4gXqcC; 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="cR4gXqcC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CCD611F00A3A; Mon, 17 Aug 2026 13:59:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786975145; bh=+ADy69cv5aFjeGwLrI44/pd4NYT/ibRfzGjDZz9BrAA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=cR4gXqcCtF6X95jfDyCvjNUNPeNVNJTLmG/gHIKDV3H1HzLgtd62+wjVgklA3HZVM rYG3FIA2fDzv8AQ9LJp8b34nIBWpylj45u1Roo9BeDQ6YIBfBTkcCxW9fVYgrKfD9T 3r/WGLoQPCOEYWgShhkGqrUsQ2t9KJXnCW1oW/2I= 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 6.18 178/250] misc: fastrpc: fix memory leak in fastrpc_channel_ctx_free Date: Mon, 17 Aug 2026 15:32:19 +0200 Message-ID: <20260817132543.871361025@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260817132536.466235697@linuxfoundation.org> References: <20260817132536.466235697@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-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 @@ -466,6 +466,7 @@ static void fastrpc_channel_ctx_free(str cctx = container_of(ref, struct fastrpc_channel_ctx, refcount); + idr_destroy(&cctx->ctx_idr); kfree(cctx); }