From 2fca25d4c0e4d7e8f7d26621757f991d1163f342 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mario=20H=C3=BCttel?= <mario.huettel@gmx.net>
Date: Wed, 4 Jan 2023 15:07:01 +0100
Subject: [PATCH] Fix segmentation fault if a NOBITS section is specified for
 output

---
 src/elfpatch.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/elfpatch.c b/src/elfpatch.c
index 7e9c3a0..978f8e6 100644
--- a/src/elfpatch.c
+++ b/src/elfpatch.c
@@ -534,6 +534,11 @@ int elf_patch_write_crcs_to_section(elfpatch_handle_t *ep, const char *section,
 	/* Get data object of section */
 	output_sec_data = elf_getdata(output_section->scn, NULL);
 	sec_bytes = (uint8_t *)output_sec_data->d_buf;
+	if (!sec_bytes) {
+		print_err("Output section '%s' does not contain loadable data. It has to be allocated in the ELF file\n",
+			  section);
+		goto ret_err;
+	}
 
 	/* Check the start and end magics */
 	if (check_start_magic) {