Message ID | 20210429141326.69245-3-laurent@vivier.eu |
---|---|
State | New |
Headers | show |
Series | hw/elf_ops: clear uninitialized segment space | expand |
diff --git a/include/hw/elf_ops.h b/include/hw/elf_ops.h index 6ee458e7bc3c..29f4c43e231d 100644 --- a/include/hw/elf_ops.h +++ b/include/hw/elf_ops.h @@ -562,6 +562,19 @@ static int glue(load_elf, SZ)(const char *name, int fd, if (res != MEMTX_OK) { goto fail; } + /* + * We need to zero'ify the space that is not copied + * from file + */ + if (file_size < mem_size) { + res = address_space_set(as ? as : &address_space_memory, + addr + file_size, 0, + mem_size - file_size, + MEMTXATTRS_UNSPECIFIED); + if (res != MEMTX_OK) { + goto fail; + } + } } }