From 860fbba93e53666ca46dd92dedfda43c9c426931 Mon Sep 17 00:00:00 2001
From: Clement Leger <cleger@kalray.eu>
Date: Fri, 12 Jun 2020 09:10:32 +0200
Subject: common: elf: check number of elf program headers

An elf file without program headers should not be loaded. Add a check
for such cases.

Signed-off-by: Clement Leger <cleger@kalray.eu>
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 common/elf.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'common/elf.c')

diff --git a/common/elf.c b/common/elf.c
index 0e92661e1a..bd97858c89 100644
--- a/common/elf.c
+++ b/common/elf.c
@@ -119,6 +119,11 @@ static int elf_check_image(struct elf_image *elf)
 		return -ENOEXEC;
 	}
 
+	if (!elf_hdr_e_phnum(elf, elf->buf)) {
+		pr_err("No phdr found.\n");
+		return -ENOEXEC;
+	}
+
 	return 0;
 }
 
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