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| author | Jeff King <peff@peff.net> | 2022-09-08 00:54:29 -0400 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2022-09-08 11:05:46 -0700 |
| commit | 3fbfbbb7e3c21515a2863702734fe31bf50672fd (patch) | |
| tree | 8b0e348e2be4003436ea7123160115d65da4849d /list-objects-filter-options.c | |
| parent | ac8035a2affdf30f2c691ad760826d955bba0507 (diff) | |
| download | git-3fbfbbb7e3c21515a2863702734fe31bf50672fd.tar.gz | |
list_objects_filter_copy(): deep-copy sparse_oid_name field
The purpose of our copy function is to do a deep copy of each field so
that the source and destination structs become independent. We correctly
copy the filter_spec string list, but we forgot the sparse_oid_name
field. By doing a shallow copy of the pointer, that puts us at risk for
a use-after-free if one or both of the structs is cleaned up.
I don't think this can be triggered in practice, because we tend to leak
the structs rather than actually clean them up. But this should
future-proof us for plugging those leaks.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'list-objects-filter-options.c')
| -rw-r--r-- | list-objects-filter-options.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/list-objects-filter-options.c b/list-objects-filter-options.c index 4b25287886..41c41c9d45 100644 --- a/list-objects-filter-options.c +++ b/list-objects-filter-options.c @@ -418,6 +418,7 @@ void list_objects_filter_copy( string_list_init_dup(&dest->filter_spec); for_each_string_list_item(item, &src->filter_spec) string_list_append(&dest->filter_spec, item->string); + dest->sparse_oid_name = xstrdup_or_null(src->sparse_oid_name); ALLOC_ARRAY(dest->sub, dest->sub_alloc); for (i = 0; i < src->sub_nr; i++) |