[binutils-gdb] mach-o reloc size overflow

[Alan Modra]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ac71c620fd8584da5370d548d4a3d6820a2069d3

commit ac71c620fd8584da5370d548d4a3d6820a2069d3
Author: Alan Modra <amodra@gmail.com>
Date:   Thu Nov 10 09:37:36 2022 +1030

    mach-o reloc size overflow
    
            * mach-o.c (bfd_mach_o_canonicalize_reloc): Set bfd_error on
            multiply overflow.

Diff:
---
 bfd/mach-o.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/bfd/mach-o.c b/bfd/mach-o.c
index 664ff44a8e7..bacb1a6252d 100644
--- a/bfd/mach-o.c
+++ b/bfd/mach-o.c
@@ -1663,7 +1663,10 @@ bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect,
       size_t amt;
 
       if (_bfd_mul_overflow (asect->reloc_count, sizeof (arelent), &amt))
-	return -1;
+	{
+	  bfd_set_error (bfd_error_file_too_big);
+	  return -1;
+	}
       res = bfd_malloc (amt);
       if (res == NULL)
 	return -1;