diff --git a/crypto/fipsmodule/aes/asm/bsaes-armv7.pl b/crypto/fipsmodule/aes/asm/bsaes-armv7.pl
index 11607d1..c6e0b17 100644
--- a/crypto/fipsmodule/aes/asm/bsaes-armv7.pl
+++ b/crypto/fipsmodule/aes/asm/bsaes-armv7.pl
@@ -1393,14 +1393,12 @@
 my $keysched = "sp";
 
 $code.=<<___;
-.extern	aes_nohw_encrypt
 .global	bsaes_ctr32_encrypt_blocks
 .type	bsaes_ctr32_encrypt_blocks,%function
 .align	5
 bsaes_ctr32_encrypt_blocks:
-	cmp	$len, #8			@ use plain AES for
-	blo	.Lctr_enc_short			@ small sizes
-
+	@ In OpenSSL, short inputs fall back to aes_nohw_* here. We patch this
+	@ out to retain a constant-time implementation.
 	mov	ip, sp
 	stmdb	sp!, {r4-r10, lr}
 	VFP_ABI_PUSH
@@ -1576,50 +1574,8 @@
 	VFP_ABI_POP
 	ldmia	sp!, {r4-r10, pc}	@ return
 
-.align	4
-.Lctr_enc_short:
-	ldr	ip, [sp]		@ ctr pointer is passed on stack
-	stmdb	sp!, {r4-r8, lr}
-
-	mov	r4, $inp		@ copy arguments
-	mov	r5, $out
-	mov	r6, $len
-	mov	r7, $key
-	ldr	r8, [ip, #12]		@ load counter LSW
-	vld1.8	{@XMM[1]}, [ip]		@ load whole counter value
-#ifdef __ARMEL__
-	rev	r8, r8
-#endif
-	sub	sp, sp, #0x10
-	vst1.8	{@XMM[1]}, [sp]		@ copy counter value
-	sub	sp, sp, #0x10
-
-.Lctr_enc_short_loop:
-	add	r0, sp, #0x10		@ input counter value
-	mov	r1, sp			@ output on the stack
-	mov	r2, r7			@ key
-
-	bl	aes_nohw_encrypt
-
-	vld1.8	{@XMM[0]}, [r4]!	@ load input
-	vld1.8	{@XMM[1]}, [sp]		@ load encrypted counter
-	add	r8, r8, #1
-#ifdef __ARMEL__
-	rev	r0, r8
-	str	r0, [sp, #0x1c]		@ next counter value
-#else
-	str	r8, [sp, #0x1c]		@ next counter value
-#endif
-	veor	@XMM[0],@XMM[0],@XMM[1]
-	vst1.8	{@XMM[0]}, [r5]!	@ store output
-	subs	r6, r6, #1
-	bne	.Lctr_enc_short_loop
-
-	vmov.i32	q0, #0
-	vmov.i32	q1, #0
-	vstmia		sp!, {q0-q1}
-
-	ldmia	sp!, {r4-r8, pc}
+	@ OpenSSL contains aes_nohw_* fallback code here. We patch this
+	@ out to retain a constant-time implementation.
 .size	bsaes_ctr32_encrypt_blocks,.-bsaes_ctr32_encrypt_blocks
 ___
 }
diff --git a/crypto/fipsmodule/aes/asm/bsaes-x86_64.pl b/crypto/fipsmodule/aes/asm/bsaes-x86_64.pl
index 81331bf..899490f 100644
--- a/crypto/fipsmodule/aes/asm/bsaes-x86_64.pl
+++ b/crypto/fipsmodule/aes/asm/bsaes-x86_64.pl
@@ -811,7 +811,6 @@
 $code.=<<___;
 .text
 
-.extern	aes_nohw_encrypt
 .extern	aes_nohw_decrypt
 
 .type	_bsaes_encrypt8,\@abi-omnipotent
@@ -1968,8 +1967,8 @@
 	mov	$arg3, $len
 	mov	$arg4, $key
 	movdqa	%xmm0, 0x20(%rbp)	# copy counter
-	cmp	\$8, $arg3
-	jb	.Lctr_enc_short
+	# In OpenSSL, short inputs fall back to aes_nohw_* here. We patch this
+	# out to retain a constant-time implementation.
 
 	mov	%eax, %ebx		# rounds
 	shl	\$7, %rax		# 128 bytes per inner round key
@@ -2103,27 +2102,9 @@
 	movdqu	0x60($inp), @XMM[14]
 	pxor	@XMM[14], @XMM[2]
 	movdqu	@XMM[2], 0x60($out)
-	jmp	.Lctr_enc_done
 
-.align	16
-.Lctr_enc_short:
-	lea	0x20(%rbp), $arg1
-	lea	0x30(%rbp), $arg2
-	lea	($key), $arg3
-	call	aes_nohw_encrypt
-	movdqu	($inp), @XMM[1]
-	lea	16($inp), $inp
-	mov	0x2c(%rbp), %eax	# load 32-bit counter
-	bswap	%eax
-	pxor	0x30(%rbp), @XMM[1]
-	inc	%eax			# increment
-	movdqu	@XMM[1], ($out)
-	bswap	%eax
-	lea	16($out), $out
-	mov	%eax, 0x2c(%rsp)	# save 32-bit counter
-	dec	$len
-	jnz	.Lctr_enc_short
-
+	# OpenSSL contains aes_nohw_* fallback code here. We patch this
+	# out to retain a constant-time implementation.
 .Lctr_enc_done:
 	lea	(%rsp), %rax
 	pxor	%xmm0, %xmm0