scripts/kallsyms crashes because memcpy() writes one more byte than
allocated.
Fixes: 8d60526999aa ("scripts/kallsyms: change table to store (strcut sym_entry *)")
Reported-by: youling257 <youling257@xxxxxxxxx>
Reported-by: Pavel Machek <pavel@xxxxxx>
Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
---
scripts/kallsyms.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index a566d8201b56..0133dfaaf352 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -210,7 +210,7 @@ static struct sym_entry *read_symbol(FILE *in)
len = strlen(name) + 1;
- sym = malloc(sizeof(*sym) + len);
+ sym = malloc(sizeof(*sym) + len + 1);
if (!sym) {
fprintf(stderr, "kallsyms failure: "
"unable to allocate required amount of memory\n");
@@ -219,7 +219,7 @@ static struct sym_entry *read_symbol(FILE *in)
sym->addr = addr;
sym->len = len;
sym->sym[0] = type;
- memcpy(sym_name(sym), name, len);
+ strcpy(sym_name(sym), name);
sym->percpu_absolute = 0;
return sym;
--
2.17.1
