As soon as a mapping is unlinked from the list, there are no further references to it, so it should be freed. If it not unlinked, update the start address and length.

Signed-off-by: Stefan Brüns stefan.bruens@rwth-aachen.de --- lib/efi_loader/efi_memory.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c index 0fcfb7a..6d8fae4 100644 --- a/lib/efi_loader/efi_memory.c +++ b/lib/efi_loader/efi_memory.c @@ -103,10 +103,13 @@ static int efi_mem_carve_out(struct efi_mem_list *map, if (map_end == carve_end) { /* Full overlap, just remove map */ list_del(&map->link); + free(map); + } else { + map->desc.physical_start = carve_end; + map->desc.num_pages = (map_end - carve_end) + >> EFI_PAGE_SHIFT; }

- map_desc->physical_start = carve_end; - map_desc->num_pages = (map_end - carve_end) >> EFI_PAGE_SHIFT; return (carve_end - carve_start) >> EFI_PAGE_SHIFT; }