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From: Alan Modra <amodra@gmail.com>
To: binutils@sourceware.org
Subject: asan: elf.c:12621:18: applying zero offset to null pointer
Date: Sat, 17 Dec 2022 18:43:11 +1030	[thread overview]
Message-ID: <Y516F5Mqq4AgLz0T@squeak.grove.modra.org> (raw)

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;
 

-- 
Alan Modra
Australia Development Lab, IBM

                 reply	other threads:[~2022-12-17  8:13 UTC|newest]

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