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From: Alan Modra <amodra@gmail.com>
Date: Thu, 16 Jun 2022 23:30:41 +0000 (+0930)
Subject: PR29254, memory leak in stab_demangle_v3_arg
X-Git-Tag: binutils-2_39~237
X-Git-Url: https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff_plain;h=0ebc886149c22aceaf8ed74267821a59ca9d03eb
PR29254, memory leak in stab_demangle_v3_arg
PR 29254
* stabs.c (stab_demangle_v3_arg): Free dt on failure path.
Upstream-Status: Backport [https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff_plain;h=0ebc886149c22aceaf8ed74267821a59ca9d03eb]
CVE: CVE-2022-47007
Signed-off-by: Deepthi Hemraj <Deepthi.Hemraj@windriver.com>
---
diff --git a/binutils/stabs.c b/binutils/stabs.c
index 2b5241637c1..796ff85b86a 100644
--- a/binutils/stabs.c
+++ b/binutils/stabs.c
@@ -5467,7 +5467,10 @@ stab_demangle_v3_arg (void *dhandle, struct stab_handle *info,
dc->u.s_binary.right,
&varargs);
if (pargs == NULL)
- return NULL;
+ {
+ free (dt);
+ return NULL;
+ }
return debug_make_function_type (dhandle, dt, pargs, varargs);
}
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