There's a incorrect array operation in function scan_vmcoreinfo(), it
will cause below warning message.
-----------------------
util_lib/elf_info.c: In function ‘scan_vmcoreinfo’:
util_lib/elf_info.c:360:43: warning: writing 1 byte into a region of size 0
[-Wstringop-overflow=]
360 | temp_buf[len + 1] = '\0';
| ~~~~~~~~~~~~~~~~~~^~~~~~
util_lib/elf_info.c:319:14: note: at offset 1024 into destination object
‘temp_buf’ of size 1024
319 | char temp_buf[1024];
| ^~~~~~~~
---------------------
Fix it to avoid oob access of array.
Signed-off-by: Baoquan He <[email protected]>
---
util_lib/elf_info.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/util_lib/elf_info.c b/util_lib/elf_info.c
index ce71c6055c3a..7ca9870bfca0 100644
--- a/util_lib/elf_info.c
+++ b/util_lib/elf_info.c
@@ -357,7 +357,7 @@ void scan_vmcoreinfo(char *start, size_t size)
if (len >= sizeof(temp_buf))
len = sizeof(temp_buf) - 1;
strncpy(temp_buf, pos, len);
- temp_buf[len + 1] = '\0';
+ temp_buf[len] = '\0';
pos = temp_buf;
len = len + 1;
--
2.41.0
_______________________________________________
kexec mailing list
[email protected]
http://lists.infradead.org/mailman/listinfo/kexec
