Subject: PR29261, memory leak in parse_stab_struct_fields
From: Alan Modra <[email-masked]>
Date: Mon, 20 Jun 2022 01:09:13 +0000 (+0930)

PR29261, memory leak in parse_stab_struct_fields

	PR 29261
	* stabs.c (parse_stab_struct_fields): Free "fields" on failure path.

Upstream-Status: Backport [https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff_plain;h=8a24927bc8dbf6beac2000593b21235c3796dc35]

CVE: CVE-2022-47011

Signed-off-by: Deepthi Hemraj <[email-masked]>

---

diff --git a/binutils/stabs.c b/binutils/stabs.c
index 796ff85b86a..bf3f578cbcc 100644
--- a/binutils/stabs.c
+++ b/binutils/stabs.c
@@ -2367,7 +2367,10 @@ parse_stab_struct_fields (void *dhandle,
 
       if (! parse_stab_one_struct_field (dhandle, info, pp, p, fields + c,
 					 staticsp, p_end))
-	return false;
+	{
+	  free (fields);
+	  return false;
+	}
 
       ++c;
     }