From: Alan Modra <amodra@gmail.com>
Date: Fri, 16 Dec 2022 07:43:38 +0000 (+1030)
Subject: asan: elf.c:12621:18: applying zero offset to null pointer
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6f00d50e2b6445f88b5f362dbbd982f387b6354f;p=binutils-gdb.git

asan: elf.c:12621:18: applying zero offset to null pointer

That's this line in elf_parse_notes:
  while (p < buf + size)

	* elf.c (_bfd_elf_make_section_from_shdr): Don't call
	elf_parse_notes when sh_size is zero.
---

diff --git a/bfd/elf.c b/bfd/elf.c
index 5548efc44e4..7317c52faaa 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -1110,7 +1110,7 @@ _bfd_elf_make_section_from_shdr (bfd *abfd,
   /* We do not parse the PT_NOTE segments as we are interested even in the
      separate debug info files which may have the segments offsets corrupted.
      PT_NOTEs from the core files are currently not parsed using BFD.  */
-  if (hdr->sh_type == SHT_NOTE)
+  if (hdr->sh_type == SHT_NOTE && hdr->sh_size != 0)
     {
       bfd_byte *contents;