From nobody Sat Sep 26 13:46:50 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E1CAE39021D; Mon, 31 Aug 2026 21:18:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788211124; cv=none; b=KdB4u689YbOxgOd4ebRss0k1bsCPiLrf6sr7rHuLAKuXSvuLcRqV3rexm0S5d9uE/UOaPOyuRsRwE8KqcFJD85ICkhDh9kfX3eK+f9gkxK91FOyZ+ap9awTXfgsGRoEZeWeZ8MpGTbCB51Dw+DV0n2ouBCvmrilvFNv0hEkuWc4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788211124; c=relaxed/simple; bh=WqOYPtCXkA/0aIci2r50O1FvnD945EcokBplrXw6rDI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=dxtdlztKtp6V0RmOAGlQWbw94eqtkcFHLDB/vKHndnNNU7HCjisKwFpLScyDv6EAfWT9v5xvjv3p5/Ukk58+sRL4COyjxr0YdXCuEH3N7dV7RlBLyhKrNVhbYY82n4QluWAQ1fJGKo5/uzIuvR5/AXdqWDm4++2bMXRp4bZYnxI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=U3U3sPTw; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="U3U3sPTw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 897051F000E9; Mon, 31 Aug 2026 21:18:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788211122; bh=pEnkektR8IC0bwpCQJ4uDheZ7wh6hTNw4pR1yfRp+nY=; h=From:To:Cc:Subject:Date; b=U3U3sPTwh79A3dnIqc9cCNt9JpZE+vK+VOBwcgUHwHLESF+5cPw6OJ/Dt978Wodg4 bN3FkklV1zt7/pMwcx/dxrrPTFj/ng2uhdcLYpR275Q0qIBludMzCjujBS7hxjkOW3 JWjD6z+sX1pdCKhKzAOlEdJAzEVgbpavKWIR1EoXLZaa/n47V40uOXXApQbAVGrLFY CV7amgTTS3hN5ASp5+YKDZx16HdekEC+kpuWguNrdLJzqNyP4s5+9EInhbusWyTJwc tvkfHTBsLnyrrZDRlFvjO1gpO0aWzWiVoFs5DOWbRX0npL91PeToffKFl8cxT2q4dT nXewcaJ7QVw1A== From: Eric Biggers To: linux-crypto@vger.kernel.org, Herbert Xu Cc: linux-kernel@vger.kernel.org, x86@kernel.org, Eric Biggers , stable@vger.kernel.org, Taehee Yoo Subject: [PATCH RESEND] crypto: x86/aria - add missing vzeroupper in AVX-512 code Date: Mon, 31 Aug 2026 14:18:12 -0700 Message-ID: <20260831211812.213262-1-ebiggers@kernel.org> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Since the AVX-512 optimized ARIA code uses ZMM registers, execute vzeroupper before returning from it. This is needed to avoid degrading the performance of any later SSE code that may happen to be executed. Fixes: c970d42001f2 ("crypto: x86/aria - implement aria-avx512") Cc: stable@vger.kernel.org Cc: Taehee Yoo Signed-off-by: Eric Biggers --- This didn't get picked up by the x86 maintainers yet. Herbert, can you take this through the crypto tree? arch/x86/crypto/aria-gfni-avx512-asm_64.S | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/crypto/aria-gfni-avx512-asm_64.S b/arch/x86/crypto/ar= ia-gfni-avx512-asm_64.S index 860887e5d02e..ca83eb126e06 100644 --- a/arch/x86/crypto/aria-gfni-avx512-asm_64.S +++ b/arch/x86/crypto/aria-gfni-avx512-asm_64.S @@ -800,6 +800,7 @@ SYM_TYPED_FUNC_START(aria_gfni_avx512_encrypt_64way) %zmm9, %zmm8, %zmm11, %zmm10, %zmm12, %zmm13, %zmm14, %zmm15, %rax); =20 + vzeroupper; FRAME_END RET; SYM_FUNC_END(aria_gfni_avx512_encrypt_64way) @@ -825,6 +826,7 @@ SYM_TYPED_FUNC_START(aria_gfni_avx512_decrypt_64way) %zmm9, %zmm8, %zmm11, %zmm10, %zmm12, %zmm13, %zmm14, %zmm15, %rax); =20 + vzeroupper; FRAME_END RET; SYM_FUNC_END(aria_gfni_avx512_decrypt_64way) @@ -966,6 +968,7 @@ SYM_TYPED_FUNC_START(aria_gfni_avx512_ctr_crypt_64way) %zmm9, %zmm8, %zmm11, %zmm10, %zmm12, %zmm13, %zmm14, %zmm15, %r10); =20 + vzeroupper; FRAME_END RET; SYM_FUNC_END(aria_gfni_avx512_ctr_crypt_64way) base-commit: cee9395acd8043be0644b25c34bfa86623f2b935 prerequisite-patch-id: 464c5d2854c73d88ca57d9d6811ae20d6a66c2aa --=20 2.55.0