From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 14 Jan 2026 13:15:10 +0100 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vfzmI-001EEk-26 for lore@lore.pengutronix.de; Wed, 14 Jan 2026 13:15:10 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1vfzmG-00028R-A6 for lore@pengutronix.de; Wed, 14 Jan 2026 13:15:10 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:To:In-Reply-To: References:Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version: Subject:Date:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=KpzF2xszEBZ+RGSYEdU6qoJGtGFfXhdn+JQ9MosCPmk=; b=bPiiBjTpx1sk5mP8beyK8+1cWk J5epmfHhnRVrdoJiXK0fB3a6ScU6HJIYgU1Taf6uj0qU99vNFSejHdoBkzls05ICPiDh5oGHgcGDE 1l3LUqD5R5eTn1tjyiqyBOnHIAW+48E/B5rEus+9fpjlzgyJoFBnohERyF2BzOvg3zkXrTULcbScP wE94zxWcdN9tN8Oy2kgOMdeOLAfNuGQ4CF47GwpLhVWX1yGlGTASGqQ2yMUUGEXAEf8krv4hKU+75 6Q8+MS9wS6FZbkQe6/qWzL/S3cGcGEnDzhS2G1lFcDEEHSoyjDF88VcblqKg81rM48G384YdpSPkv 6B8kHD+A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vfzlj-0000000981k-1Ddo; Wed, 14 Jan 2026 12:14:35 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vfzlg-000000097yQ-0Glq for barebox@lists.infradead.org; Wed, 14 Jan 2026 12:14:33 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1vfzlc-0001ic-Ri; Wed, 14 Jan 2026 13:14:28 +0100 Received: from dude02.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::28]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vfzld-000aPN-0A; Wed, 14 Jan 2026 13:14:28 +0100 Received: from localhost ([::1] helo=dude02.red.stw.pengutronix.de) by dude02.red.stw.pengutronix.de with esmtp (Exim 4.98.2) (envelope-from ) id 1vfzlc-00000000TKs-0xLB; Wed, 14 Jan 2026 13:14:28 +0100 From: Sascha Hauer Date: Wed, 14 Jan 2026 13:14:27 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260114-pbl-load-elf-v4-2-0afa78d95a7e@pengutronix.de> References: <20260114-pbl-load-elf-v4-0-0afa78d95a7e@pengutronix.de> In-Reply-To: <20260114-pbl-load-elf-v4-0-0afa78d95a7e@pengutronix.de> To: BAREBOX X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1768392868; l=621; i=s.hauer@pengutronix.de; s=20230412; h=from:subject:message-id; bh=Ck8wEpKBRQ/AgEYpmfdk5YstQlVsA7YFU7KOIewVQSo=; b=OA2w9AcIOMzVYj348bSdNSMZKyCYAfopHHXcjlHp3WtansD4ncrz+gINd1k70HqmLUR3fNlNI ApbnLKAAPGlA5kydF6IFEC40OlanzmVJk+7wWCs4rL1c541c8DZRy2q X-Developer-Key: i=s.hauer@pengutronix.de; a=ed25519; pk=4kuc9ocmECiBJKWxYgqyhtZOHj5AWi7+d0n/UjhkwTg= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260114_041432_113426_A38B7AE0 X-CRM114-Status: UNSURE ( 8.65 ) X-CRM114-Notice: Please train this message. X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Claude Sonnet 4.5" , Ahmad Fatoum Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-3.9 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH v4 02/22] elf: only accept images matching the native ELF_CLASS X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) Reviewed-by: Ahmad Fatoum Signed-off-by: Sascha Hauer --- common/elf.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/common/elf.c b/common/elf.c index 34d790bad3961664a8036c3299e675fa053b15a2..f772018deb3c5a07a9f76bc654e54ff46cc3612e 100644 --- a/common/elf.c +++ b/common/elf.c @@ -208,6 +208,9 @@ static int elf_check_image(struct elf_image *elf, void *buf) return -ENOEXEC; } + if (elf->class != ELF_CLASS) + return -EINVAL; + if (!elf_hdr_e_phnum(elf, buf)) { pr_err("No phdr found.\n"); return -ENOEXEC; -- 2.47.3