diff --git a/module/icp/algs/modes/gcm.c b/module/icp/algs/modes/gcm.c
index 3cfa5b816..ab2c5a49f 100644
--- a/module/icp/algs/modes/gcm.c
+++ b/module/icp/algs/modes/gcm.c
@@ -34,6 +34,7 @@
 #include <modes/gcm_impl.h>
 #ifdef CAN_USE_GCM_ASM
 #include <aes/aes_impl.h>
+#include <modes/gcm_asm_rename_funcs.h>
 #endif
 
 #define	GHASH(c, d, t, o) \
diff --git a/module/icp/asm-x86_64/modes/aesni-gcm-avx2-vaes.S b/module/icp/asm-x86_64/modes/aesni-gcm-avx2-vaes.S
index 76ced8eba..950c1a7c8 100644
--- a/module/icp/asm-x86_64/modes/aesni-gcm-avx2-vaes.S
+++ b/module/icp/asm-x86_64/modes/aesni-gcm-avx2-vaes.S
@@ -7,6 +7,7 @@
 
 #define _ASM
 #include <sys/asm_linkage.h>
+#include <modes/gcm_asm_rename_funcs.h>
 
 /* Windows userland links with OpenSSL */
 #if !defined (_WIN32) || defined (_KERNEL)
diff --git a/module/icp/include/modes/gcm_asm_rename_funcs.h b/module/icp/include/modes/gcm_asm_rename_funcs.h
new file mode 100644
index 000000000..08c51aeed
--- /dev/null
+++ b/module/icp/include/modes/gcm_asm_rename_funcs.h
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: CDDL-1.0
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or https://opensource.org/licenses/CDDL-1.0.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright (c) 2026 Attila Fülöp <attila@fueloep.org>
+ */
+
+/*
+ * Prepend `icp_` to each function name defined in gcm assembly files.
+ * This avoids potential symbol conflicts with linux libcrypto in case of
+ * in-tree compilation. To keep the diff noise low, we do this using macros.
+ *
+ * Currently only done for aesni-gcm-avx2-vaes.S since there is a real conflict.
+ */
+
+/* module/icp/asm-x86_64/modes/aesni-gcm-avx2-vaes.S */
+#define	gcm_init_vpclmulqdq_avx2	icp_gcm_init_vpclmulqdq_avx2
+#define	gcm_gmult_vpclmulqdq_avx2	icp_gcm_gmult_vpclmulqdq_avx2
+#define	gcm_ghash_vpclmulqdq_avx2	icp_gcm_ghash_vpclmulqdq_avx2
+#define	aes_gcm_enc_update_vaes_avx2	icp_aes_gcm_enc_update_vaes_avx2
+#define	aes_gcm_dec_update_vaes_avx2	icp_aes_gcm_dec_update_vaes_avx2