From: Alan Modra <amodra@gmail.com>
Date: Sat, 3 Jun 2023 07:46:04 +0000 (+0930)
Subject: Re: loongarch readelf support
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=89c70cd358b8fa46b84cd100efc95495ff0160ae;p=binutils-gdb.git

Re: loongarch readelf support

Another segfault.

	* readelf.c (target_specific_reloc_handling): Sanity check
	loongarch reloc r_offset.
---

diff --git a/binutils/readelf.c b/binutils/readelf.c
index 042d2301517..23d3e21bea6 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -14021,8 +14021,9 @@ target_specific_reloc_handling (Filedata *filedata,
 		unsigned int reloc_size = 0;
 		int leb_ret = 0;
 
-		value = read_leb128 (start + reloc->r_offset, end, false,
-			      &reloc_size, &leb_ret);
+		if (reloc->r_offset < (size_t) (end - start))
+		  value = read_leb128 (start + reloc->r_offset, end, false,
+				       &reloc_size, &leb_ret);
 		if (leb_ret != 0 || reloc_size == 0 || reloc_size > 8)
 		  error (_("LoongArch ULEB128 field at 0x%lx contains invalid "
 			   "ULEB128 value\n"),