From 72efdf166aa0ed72ecc69fc2349af6591a7a19c0 Mon Sep 17 00:00:00 2001 From: Alan Modra Date: Thu, 25 Sep 2025 10:41:32 +0930 Subject: [PATCH] Re: elf: Disallow the empty global symbol name sparc64-linux-gnu +FAIL: selective2 sparc64-linux-gnu +FAIL: selective3 PR ld/33456 * elflink.c (elf_link_add_object_symbols): Move new check later to give the backend add_symbol_hook a chance to remove symbols with empty names. CVE: CVE-2025-11413 Upstream-Status: Backport [https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=72efdf166aa0ed72ecc69fc2349af6591a7a19c0] Signed-off-by: Peter Marko --- bfd/elflink.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/bfd/elflink.c b/bfd/elflink.c index 0a0456177c2..5c8b822e36a 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -5118,6 +5118,13 @@ elf_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) continue; } + if (name[0] == '\0') + { + _bfd_error_handler (_("%pB: corrupt symbol table"), abfd); + bfd_set_error (bfd_error_bad_value); + goto error_free_vers; + } + /* Sanity check that all possibilities were handled. */ if (sec == NULL) abort ();