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-rw-r--r--fsck.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/fsck.c b/fsck.c
index dd7762895..73da6f814 100644
--- a/fsck.c
+++ b/fsck.c
@@ -237,6 +237,26 @@ static int fsck_tree(struct tree *item, int strict, fsck_error error_func)
return retval;
}
+static int require_end_of_header(const void *data, unsigned long size,
+ struct object *obj, fsck_error error_func)
+{
+ const char *buffer = (const char *)data;
+ unsigned long i;
+
+ for (i = 0; i < size; i++) {
+ switch (buffer[i]) {
+ case '\0':
+ return error_func(obj, FSCK_ERROR,
+ "unterminated header: NUL at offset %d", i);
+ case '\n':
+ if (i + 1 < size && buffer[i + 1] == '\n')
+ return 0;
+ }
+ }
+
+ return error_func(obj, FSCK_ERROR, "unterminated header");
+}
+
static int fsck_ident(const char **ident, struct object *obj, fsck_error error_func)
{
char *end;
@@ -284,6 +304,9 @@ static int fsck_commit_buffer(struct commit *commit, const char *buffer,
unsigned parent_count, parent_line_count = 0;
int err;
+ if (require_end_of_header(buffer, size, &commit->object, error_func))
+ return -1;
+
if (!skip_prefix(buffer, "tree ", &buffer))
return error_func(&commit->object, FSCK_ERROR, "invalid format - expected 'tree' line");
if (get_sha1_hex(buffer, tree_sha1) || buffer[40] != '\n')