From: Nick Clifton <nickc@redhat.com>
Date: Wed, 11 Jan 2023 12:13:46 +0000 (+0000)
Subject: Fix a potential illegal memory access in the BFD library when parsing a corrupt DWARF... 
X-Git-Tag: binutils-2_40~10
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3e307d538c351aa9327cbad672c884059ecc20dd;p=thirdparty%2Fbinutils-gdb.git

Fix a potential illegal memory access in the BFD library when parsing a corrupt DWARF file.

	PR 29988
	* dwarf2.c (read_indexed_address): Fix check for an out of range
	offset.
---

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index f5b5b663d26..c2a8dc6e934 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,9 @@
+2023-01-11  Nick Clifton  <nickc@redhat.com>
+
+	PR 29988
+	* dwarf2.c (read_indexed_address): Fix check for an out of range
+	offset.
+
 2023-01-06  Nick Clifton  <nickc@redhat.com>
 
 	* po/ru.po: Updated Russian translation.
diff --git a/bfd/dwarf2.c b/bfd/dwarf2.c
index 6eb6e04e6e5..4ec0053a111 100644
--- a/bfd/dwarf2.c
+++ b/bfd/dwarf2.c
@@ -1412,7 +1412,7 @@ read_indexed_address (uint64_t idx, struct comp_unit *unit)
   offset += unit->dwarf_addr_offset;
   if (offset < unit->dwarf_addr_offset
       || offset > file->dwarf_addr_size
-      || file->dwarf_addr_size - offset < unit->offset_size)
+      || file->dwarf_addr_size - offset < unit->addr_size)
     return 0;
 
   info_ptr = file->dwarf_addr_buffer + offset;