[openssh-commits] [openssh] 01/03: upstream: fix memory leak in mux_client_request_stdio_fwd GHPR#575

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djm pushed a commit to branch master
in repository openssh.

commit 42b14ff1e06fd683c7d15a6b2816c16108873a5a
Author: djm at openbsd.org <djm at openbsd.org>
AuthorDate: Tue Sep 30 00:03:09 2025 +0000

    upstream: fix memory leak in mux_client_request_stdio_fwd GHPR#575
    
    by Boris Tonofa; ok dtucker
    
    OpenBSD-Commit-ID: 410cdd05242304bd0196b9172ce5fcaf89d2d8ce
---
 mux.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/mux.c b/mux.c
index 7dd1309fa..37bcb9103 100644
--- a/mux.c
+++ b/mux.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: mux.c,v 1.106 2025/09/15 04:48:29 djm Exp $ */
+/* $OpenBSD: mux.c,v 1.107 2025/09/30 00:03:09 djm Exp $ */
 /*
  * Copyright (c) 2002-2008 Damien Miller <djm at openbsd.org>
  *
@@ -2195,8 +2195,10 @@ mux_client_request_stdio_fwd(int fd)
 	sshbuf_reset(m);
 	if (mux_client_read_packet(fd, m) != 0) {
 		if (errno == EPIPE ||
-		    (errno == EINTR && muxclient_terminate != 0))
+		    (errno == EINTR && muxclient_terminate != 0)) {
+			sshbuf_free(m);
 			return 0;
+		}
 		fatal_f("mux_client_read_packet: %s", strerror(errno));
 	}
 	fatal_f("master returned unexpected message %u", type);

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