From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 16 Jan 2026 09:13:03 +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 1vgex5-001tTT-1h for lore@lore.pengutronix.de; Fri, 16 Jan 2026 09:13:03 +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 1vgex4-0004Dw-Fe for lore@pengutronix.de; Fri, 16 Jan 2026 09:13:03 +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=9HRRTVBjlI+axr4PqmAkKb4pEICtjSqmbfg0ol94PSk=; b=O2+GYXUdMd3lmZWkwpj1bxsM2V vcM0QBNG38zEu87iBMInFrmexLdt8LmOLo62kU9H5Pc1XJduc2z2EJOfPlMocSfzqIMyhbeHGKysv S/nKPSdnZbZ6VnKyY+wiR97MjqCZCPB6l7IhJFzx4iRjGftU5t8x6UQTNCMpwR6ArWzhgJReEfwuY iG7z0hvaR/N5TvCoWobFH/u2jyHTEt6QBvQ55vt81Vty6YHjSqbGNUU6IS1DZmQaduo/tQq4DNSlD o5Elo212fN7m5CtMC4BHNV+vYqAIi4Jw9NZL1usijrDwIwcn9sVJwx3B9C/otpD8HGSmIA9oincdR DuTpnuIA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vgewc-0000000DjX5-0RqE; Fri, 16 Jan 2026 08:12:34 +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 1vgewZ-0000000DjV7-2PsM for barebox@lists.infradead.org; Fri, 16 Jan 2026 08:12:32 +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 1vgewH-0003jQ-Us; Fri, 16 Jan 2026 09:12:13 +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 1vgewI-000t5F-0Y; Fri, 16 Jan 2026 09:12:13 +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 1vgewH-00000005hOg-1YPc; Fri, 16 Jan 2026 09:12:13 +0100 From: Sascha Hauer Date: Fri, 16 Jan 2026 09:12:13 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260116-pbl-load-elf-v5-2-51d042021c5a@pengutronix.de> References: <20260116-pbl-load-elf-v5-0-51d042021c5a@pengutronix.de> In-Reply-To: <20260116-pbl-load-elf-v5-0-51d042021c5a@pengutronix.de> To: BAREBOX X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1768551133; l=561; i=s.hauer@pengutronix.de; s=20230412; h=from:subject:message-id; bh=7N6/I/dwGJxONrDHuZcH8lj+lfObPQtCzWCI+Ojl+EM=; b=cHIA6xog+y8XDJ07FpDyMlXsNZ45HcerHZIeksKCP/7QGZX09v2WLm51Xib8JOIMNq4A8V9ui T7kbgXXBsYEAd6jqT628QNfhrS25HJq23Q8lR4OYaQFm2l0vNxxj6m0 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-20260116_001231_622919_AB6B4000 X-CRM114-Status: UNSURE ( 8.49 ) 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 v5 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 34d790bad3..f772018deb 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