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From 8a24927bc8dbf6beac2000593b21235c3796dc35 Mon Sep 17 00:00:00 2001
From: Alan Modra <amodra@gmail.com>
Date: Mon, 20 Jun 2022 10:39:13 +0930
Subject: [PATCH] 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: Virendra Thakur <virendrak@kpit.com>
Comment: Patch refreshed based on codebase.
---
binutils/stabs.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/binutils/stabs.c b/binutils/stabs.c
index 796ff85b86a..bf3f578cbcc 100644
--- a/binutils/stabs.c
+++ b/binutils/stabs.c
@@ -2368,7 +2368,10 @@
if (! parse_stab_one_struct_field (dhandle, info, pp, p, fields + c,
staticsp, p_end))
- return FALSE;
+ {
+ free (fields);
+ return FALSE;
+ }
++c;
}
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