[PATCH v5 02/22] elf: only accept images matching the native ELF_CLASS

Sascha Hauer s.hauer at pengutronix.de
Fri Jan 16 00:12:13 PST 2026


Reviewed-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 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




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