diff --git a/srcpkgs/mbedtls2/patches/gcc14.patch b/srcpkgs/mbedtls2/patches/gcc14.patch
new file mode 100644
index 00000000000..523134b8846
--- /dev/null
+++ b/srcpkgs/mbedtls2/patches/gcc14.patch
@@ -0,0 +1,59 @@
+From 990a88cd53d40ff42481a2c200b05f656507f326 Mon Sep 17 00:00:00 2001
+From: Sergei Trofimovich <slyich@gmail.com>
+Date: Thu, 25 Jan 2024 20:48:56 +0000
+Subject: [PATCH] tests: fix `calloc()` argument list (`gcc-14` fix)
+
+`gcc-14` added a new `-Wcalloc-transposed-args` warning recently. It
+detected minor infelicity in `calloc()` API usage in `mbedtls`:
+
+    In file included from /build/mbedtls/tests/include/test/ssl_helpers.h:19,
+                     from /build/mbedtls/tests/src/test_helpers/ssl_helpers.c:11:
+    /build/mbedtls/tests/src/test_helpers/ssl_helpers.c: In function 'mbedtls_test_init_handshake_options':
+    /build/mbedtls/tests/include/test/macros.h:128:46:
+      error: 'calloc' sizes specified with 'sizeof' in the earlier argument
+        and not in the later argument [-Werror=calloc-transposed-args]
+      128 |             (pointer) = mbedtls_calloc(sizeof(*(pointer)),  \
+          |                                              ^
+
+Signed-off-by: Sergei Trofimovich <slyich@gmail.com>
+---
+ tests/include/test/macros.h | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/tests/include/test/macros.h b/tests/include/test/macros.h
+index 894fc6727cc8..3c347e17e901 100644
+--- a/tests/include/test/macros.h
++++ b/tests/include/test/macros.h
+@@ -135,8 +135,8 @@
+     do {                                                    \
+         TEST_ASSERT((pointer) == NULL);                     \
+         if ((item_count) != 0) {                            \
+-            (pointer) = mbedtls_calloc(sizeof(*(pointer)),  \
+-                                       (item_count));       \
++            (pointer) = mbedtls_calloc((item_count),        \
++                                       sizeof(*(pointer))); \
+             TEST_ASSERT((pointer) != NULL);                 \
+         }                                                   \
+     } while (0)
+@@ -165,8 +165,8 @@
+ #define TEST_CALLOC_NONNULL(pointer, item_count)            \
+     do {                                                    \
+         TEST_ASSERT((pointer) == NULL);                     \
+-        (pointer) = mbedtls_calloc(sizeof(*(pointer)),      \
+-                                   (item_count));           \
++        (pointer) = mbedtls_calloc((item_count),            \
++                                   sizeof(*(pointer)));     \
+         if (((pointer) == NULL) && ((item_count) == 0)) {   \
+             (pointer) = mbedtls_calloc(1, 1);               \
+         }                                                   \
+@@ -185,8 +185,8 @@
+     do {                                                    \
+         TEST_ASSERT((pointer) == NULL);                     \
+         if ((item_count) != 0) {                            \
+-            (pointer) = mbedtls_calloc(sizeof(*(pointer)),  \
+-                                       (item_count));       \
++            (pointer) = mbedtls_calloc((item_count),        \
++                                       sizeof(*(pointer))); \
+             TEST_ASSUME((pointer) != NULL);                 \
+         }                                                   \
+     } while (0)