From 3c3fab00d18ef3303e143e44aef88a8f60f1f904 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Tue, 23 Sep 2025 10:05:14 +0800 Subject: [PATCH 1/4] elf: Disallow the empty symbol name Reject the empty symbol name, "". PR ld/33456 * elflink.c (elf_link_add_object_symbols): Disallow the empty symbol name. Signed-off-by: H.J. Lu --- bfd/elflink.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/bfd/elflink.c b/bfd/elflink.c index b04b017747f..66982f82b94 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -5096,6 +5096,13 @@ elf_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) if (name == NULL) goto error_free_vers; + if (name[0] == '\0') + { + _bfd_error_handler (_("%pB: corrupt symbol table"), abfd); + bfd_set_error (bfd_error_bad_value); + goto error_free_vers; + } + if (isym->st_shndx == SHN_COMMON && (abfd->flags & BFD_PLUGIN) != 0) { -- 2.51.0