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 7CFF433E35D for ; Mon, 26 Jan 2026 15:51:22 +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=1769442682; cv=none; b=FMYi3Nge3iE2oJ7lNQCttZUxpakFeJWQWmESl2JN/pl+ytiLN8t30bV6hz/4uNmEW0I7Lw/lZgz6hkgDYYI1F71tghwt0s593T3Ul/R3fCVZiHYYG/uwyC6RisGYxiV+QszLPkkfDoN0uQQizIN9rs0PxVvKAXsWiKnzkLocc74= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769442682; c=relaxed/simple; bh=xeFdJ9LLOxMmy0KLBODKsm1h98uHx3SHMFPm5lt2giw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HIz6a6sAVHsI3nPd4JGSoy5hDLnHtgixrZc1NVKYZL2OEmiflCT6foDfVMzZQJn9dNIi3sFs+TYNCqS9kkx1vvNDX2gXVBraGSmauk1N9YoHMqWI2kcRRA1qshslnPRluwzuVe8ON1sDYRF3WHsRdVbtKdzGP6MFLqfzAvu8t1U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=beL5rRrI; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="beL5rRrI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C9671C16AAE; Mon, 26 Jan 2026 15:51:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1769442682; bh=xeFdJ9LLOxMmy0KLBODKsm1h98uHx3SHMFPm5lt2giw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=beL5rRrISqvdqSOlIXgjQjvBe9gkNacbmjFR4xAtgZ9jjgM9/6EF7WusUEsDlJX5B k2zUFo8kssaFiNbWURFfQwot/uXQWmWJK9TcvkbFTojWt9dVz1ADtbFhI+JD+l3VuU aHrOpNWZoAVrCDpoeqA6dH8ok4Sw4RvD9+jEkPx6pVr1PysHdff6Rs2eYnYUl4gcU4 uayMf6YOWIy+NTulUn/D771Ra2OJJfCbiBCokIZfvVYq7OhwCAOxmKrGU/2XByGEiu NzmnRUPF+TS2NP3n3EJxh9DC3ml0xMqqHBbVm0GSxzBP7ocTwLau3SCSLMp4rMKrlh jg+JQ8nD8C9+A== From: Sasha Levin To: stable@vger.kernel.org Cc: Abdun Nihaal , Juergen Gross , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 6.1.y 2/2] scsi: xen: scsiback: Fix potential memory leak in scsiback_remove() Date: Mon, 26 Jan 2026 10:51:19 -0500 Message-ID: <20260126155119.3323199-2-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260126155119.3323199-1-sashal@kernel.org> References: <2026012625-perky-unquote-b3a5@gregkh> <20260126155119.3323199-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Abdun Nihaal [ Upstream commit 901a5f309daba412e2a30364d7ec1492fa11c32c ] Memory allocated for struct vscsiblk_info in scsiback_probe() is not freed in scsiback_remove() leading to potential memory leaks on remove, as well as in the scsiback_probe() error paths. Fix that by freeing it in scsiback_remove(). Cc: stable@vger.kernel.org Fixes: d9d660f6e562 ("xen-scsiback: Add Xen PV SCSI backend driver") Signed-off-by: Abdun Nihaal Reviewed-by: Juergen Gross Link: https://patch.msgid.link/20251223063012.119035-1-nihaal@cse.iitm.ac.in Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/xen/xen-scsiback.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c index 954188b0b858a..dcc9d15504df0 100644 --- a/drivers/xen/xen-scsiback.c +++ b/drivers/xen/xen-scsiback.c @@ -1261,6 +1261,7 @@ static void scsiback_remove(struct xenbus_device *dev) gnttab_page_cache_shrink(&info->free_pages, 0); dev_set_drvdata(&dev->dev, NULL); + kfree(info); } static int scsiback_probe(struct xenbus_device *dev, -- 2.51.0