Backport the fix for CVE-2026-660= 32.

A SFTP error path can leave a dangling pointer after freeing the
response buffer, which may result in a double free on subsequent error
handling.

Use Debian's libssh2 1.11.1 backport of the upstream fix.

Signed-off-by: Stefan M=C3=BCller <stefan.mueller@rey-technology.com>=
---
Backport to: 2025.02.x
---
...-prevent-dangling-pointer-after-free.patch | 28 +++= 3;++++++++++++++= 3;
package/libssh2/libssh2.mk       &= nbsp;            |&n= bsp; 3 ++
2 files changed, 31 insertions(+)
create mode 100644 package/libssh2/0007-sftp-prevent-dangling-pointer= -after-free.patch

diff --git a/package/libssh2/0007-sftp-prevent-dangling-pointer-after-free.= patch b/package/libssh2/0007-sftp-prevent-dangling-pointer-after-free.patch=
new file mode 100644
index 0000000000..527365b33a
--- /dev/null
+++ b/package/libssh2/0007-sftp-prevent-dangling-pointer-after-= free.patch
@@ -0,0 +1,28 @@
+From 5e4776146552d898b9c0e1b313cd093fa8dc92d0 Mon Sep 17 00:00:00 2001=
+From: Will Cosgrove <will@panic.com>
+Date: Thu, 2 Jul 2026 11:00:23 -0700
+Subject: [PATCH] Prevent dangling pointer by nullifying data (#2180) +
+Set data to NULL after freeing it to avoid dangling pointer. fixes
+GHSA-px3w-7g75-hg7w.
+
+Credit: VladimirEliTokarev
+Forwarded: not-needed
+
+CVE: CVE-2026-66032
+Upstream: https://github.com/libssh2/libssh2/commi= t/5e4776146552d898b9c0e1b313cd093fa8dc92d0
+Signed-off-by: Stefan M=C3=BCller <stefan.mueller@rey-technology.co= m>
+---
+ src/sftp.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/src/sftp.c
++++ b/src/sftp.c
+@@ -1279,6 +1279,7 @@
+           &nbs= p;            &= nbsp;       "got HANDLE FXOK")); +
+           &nbs= p;     LIBSSH2_FREE(session, data);
++           = ;     data =3D NULL;
+
+           &nbs= p;     /* silly situation, but check for a HANDLE */ +           &nbs= p;     rc =3D sftp_packet_require(sftp, SSH_FXP_HANDLE,=
diff --git a/package/libssh2/libssh2.mk b/package/libssh2/libssh2.mk
index 6b2d774b38..583ed56c1c 100644
--- a/package/libssh2/libssh2.mk
+++ b/package/libssh2/libssh2.mk
@@ -27,6 +27,9 @@ LIBSSH2_IGNORE_CVES +=3D CVE-2026-55200
# 0006-sftp-symlink-fix-SSH_FXP_STATUS-response.patch
LIBSSH2_IGNORE_CVES +=3D CVE-2025-15661

+# 0007-sftp-prevent-dangling-pointer-after-free.patch
+LIBSSH2_IGNORE_CVES +=3D CVE-2026-66032
+
ifeq ($(BR2_PACKAGE_LIBSSH2_MBEDTLS),y)
LIBSSH2_DEPENDENCIES +=3D mbedtls
LIBSSH2_CONF_OPTS +=3D --with-libmbedcrypto-prefix=3D$(STAGING_DI= R)/usr \
--
2.25.1