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GET /api/1.1/patches/2220288/?format=api
{ "id": 2220288, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2220288/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20260406-mtk-spi-nor-improvements-v1-5-66f675cbbd3e@baylibre.com/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/1.1/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null }, "msgid": "<20260406-mtk-spi-nor-improvements-v1-5-66f675cbbd3e@baylibre.com>", "date": "2026-04-06T20:13:31", "name": "[5/8] spi: mtk-snor: add bounds checking in mtk_snor_cmd_program()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "0766100e27b8cff7258f2a22071d57de54b044f4", "submitter": { "id": 87228, "url": "http://patchwork.ozlabs.org/api/1.1/people/87228/?format=api", "name": "David Lechner", "email": "dlechner@baylibre.com" }, "delegate": { "id": 161331, "url": "http://patchwork.ozlabs.org/api/1.1/users/161331/?format=api", "username": "dlech", "first_name": "David", "last_name": "Lechner", "email": "dlechner@baylibre.com" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20260406-mtk-spi-nor-improvements-v1-5-66f675cbbd3e@baylibre.com/mbox/", "series": [ { "id": 498893, "url": "http://patchwork.ozlabs.org/api/1.1/series/498893/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=498893", "date": "2026-04-06T20:13:26", "name": "spi: mtk_snor: various fixes and improvements", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/498893/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2220288/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2220288/checks/", "tags": {}, "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=baylibre-com.20251104.gappssmtp.com\n header.i=@baylibre-com.20251104.gappssmtp.com header.a=rsa-sha256\n header.s=20251104 header.b=N84LYqDI;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; 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charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20260406-mtk-spi-nor-improvements-v1-5-66f675cbbd3e@baylibre.com>", "References": "<20260406-mtk-spi-nor-improvements-v1-0-66f675cbbd3e@baylibre.com>", "In-Reply-To": "\n <20260406-mtk-spi-nor-improvements-v1-0-66f675cbbd3e@baylibre.com>", "To": "Ryder Lee <ryder.lee@mediatek.com>, Weijie Gao <weijie.gao@mediatek.com>,\n Chunfeng Yun <chunfeng.yun@mediatek.com>,\n Igor Belwon <igor.belwon@mentallysanemainliners.org>,\n GSS_MTK_Uboot_upstream <GSS_MTK_Uboot_upstream@mediatek.com>,\n Tom Rini <trini@konsulko.com>", "Cc": "Julien Stephan <jstephan@baylibre.com>, u-boot@lists.denx.de,\n David Lechner <dlechner@baylibre.com>, \"Noah.Shen\" <noah.shen@mediatek.com>,\n \"Noah.Shen\" <noah.shen@mediatek.com>", "X-Mailer": "b4 0.16-dev", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=1410; i=dlechner@baylibre.com;\n h=from:subject:message-id;\n bh=miK/mxmL+mlMLs31piWOtN7kAAIrkzGe5H/hwQ8fUk0=;\n b=owEBhAF7/pANAwAKAcLMIAH/AY/AAcsmYgBp1BQNURxzHhDDtQXAJjFmvmqJBVB0npL1TT/fh\n zC2zuQAPxCJAUoEAAEKADQWIQTsGNmeYg6D1pzYaJjCzCAB/wGPwAUCadQUDRYcZGxlY2huZXJA\n YmF5bGlicmUuY29tAAoJEMLMIAH/AY/Ar0AIAJkQgxh8BMiW3m/tYDLXZXDRJ88Y0H9npU9c8ol\n awPTXE/+4NPEqLctet4xJnoyjmOeEYqkrIo1SfPADPSIi8ybBGYJtqUKM9H/CPAn8vKvHh7jjxd\n JUIuccMEkRrfMnzwIAa6BcPcAa+Yl9UC1mm1fEtV8YKLdtD3qbCoMo1lPnTeaNLzodw8dK3lFXg\n PN25XsCEkkocPDVvmWHXcGyRYPBUlLxDMooM9RvHhl+2W0pH8XgoNCPHYdqRu0gJqhV/6OpR/l3\n uaUcWmNFnvxJNRHxe70ZOKduQOxmAvRIfxwOUpwl5uLk0yvm+nM5rZ59urMNTuc/siNSQSgVuAh\n 1c2w=", "X-Developer-Key": "i=dlechner@baylibre.com; a=openpgp;\n fpr=8A73D82A6A1F509907F373881F8AF88C82F77C03", "X-BeenThere": "u-boot@lists.denx.de", "X-Mailman-Version": "2.1.39", "Precedence": "list", "List-Id": "U-Boot discussion <u-boot.lists.denx.de>", "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=unsubscribe>", "List-Archive": "<https://lists.denx.de/pipermail/u-boot/>", "List-Post": "<mailto:u-boot@lists.denx.de>", "List-Help": "<mailto:u-boot-request@lists.denx.de?subject=help>", "List-Subscribe": "<https://lists.denx.de/listinfo/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=subscribe>", "Errors-To": "u-boot-bounces@lists.denx.de", "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>", "X-Virus-Scanned": "clamav-milter 0.103.8 at phobos.denx.de", "X-Virus-Status": "Clean" }, "content": "From: \"Noah.Shen\" <noah.shen@mediatek.com>\n\nAdd bounds checking of the various lengths in mtk_snor_cmd_program() to\nprevent reading or writing registers out of bounds.\n\nSigned-off-by: Noah.Shen <noah.shen@mediatek.com>\nSigned-off-by: David Lechner <dlechner@baylibre.com>\n---\n drivers/spi/mtk_snor.c | 11 +++++++++++\n 1 file changed, 11 insertions(+)", "diff": "diff --git a/drivers/spi/mtk_snor.c b/drivers/spi/mtk_snor.c\nindex babdb4600d5..77f94827568 100644\n--- a/drivers/spi/mtk_snor.c\n+++ b/drivers/spi/mtk_snor.c\n@@ -90,6 +90,7 @@\n #define MTK_NOR_REG_DMA_END_DADR 0x724\n \n #define MTK_NOR_PRG_MAX_SIZE 6\n+#define MTK_NOR_PRG_CNT_MAX 56\n /* Reading DMA src/dst addresses have to be 16-byte aligned */\n #define MTK_NOR_DMA_ALIGN 16\n #define MTK_NOR_DMA_ALIGN_MASK (MTK_NOR_DMA_ALIGN - 1)\n@@ -405,6 +406,16 @@ static int mtk_snor_cmd_program(struct mtk_snor_priv *priv,\n \tprg_len = op->cmd.nbytes + op->addr.nbytes + op->dummy.nbytes +\n \t\t op->data.nbytes;\n \n+\t/*\n+\t * An invalid op may reach here if the caller calls exec_op without\n+\t * adjust_op_size. return -EINVAL instead of -ENOTSUPP so that\n+\t * spi-mem won't try this op again with generic spi transfers.\n+\t */\n+\tif ((tx_len > MTK_NOR_REG_PRGDATA_MAX + 1) ||\n+\t (rx_len > MTK_NOR_REG_SHIFT_MAX + 1) ||\n+\t (prg_len > MTK_NOR_PRG_CNT_MAX / 8))\n+\t\treturn -EINVAL;\n+\n \t/* fill tx data */\n \n \tfor (i = op->cmd.nbytes; i > 0; i--, reg_offset--) {\n", "prefixes": [ "5/8" ] }