Fix an attempt to allocate an unreasonably large amount of memory when parsing a corrupt ELF file.
PR 29924
* objdump.c (load_specific_debug_section): Check for excessively
large sections.
diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index e7f918d..020e09f 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,9 @@
+2022-12-21 Nick Clifton <nickc@redhat.com>
+
+ PR 29924
+ * objdump.c (load_specific_debug_section): Check for excessively
+ large sections.
+
2022-12-19 Tom Tromey <tromey@adacore.com>
* dwarf-mode.el (dwarf-do-refresh): Avoid compiler warning.
diff --git a/binutils/objdump.c b/binutils/objdump.c
index d51abbe..2eb02de 100644
--- a/binutils/objdump.c
+++ b/binutils/objdump.c
@@ -4225,7 +4225,9 @@
section->size = bfd_section_size (sec);
/* PR 24360: On 32-bit hosts sizeof (size_t) < sizeof (bfd_size_type). */
alloced = amt = section->size + 1;
- if (alloced != amt || alloced == 0)
+ if (alloced != amt
+ || alloced == 0
+ || (bfd_get_size (abfd) != 0 && alloced >= bfd_get_size (abfd)))
{
section->start = NULL;
free_debug_section (debug);
