From nobody Sun Feb 8 17:03:57 2026 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 E21012261A; Wed, 13 Mar 2024 09:17:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710321430; cv=none; b=NLqXghBQd3kN0VdX+fCzz7VCF7RKt4Kbverv3UYcUNtkCluUYlRfVlSKdwPUPe0LEAkK91gfn08ER4c/sie6oVXpja1mEjLygezImZFalGO6LoPF9lsbR63zdhlR+wMbAoavm46O+HARUCsI+twvbzX1I6zFxygclDELw5f09bw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710321430; c=relaxed/simple; bh=R+56XbCW7VCmvc6HpQtkGngJnu7ekY4FJCSyrZVjUWk=; h=Date:From:To:Subject:Cc:MIME-Version:Message-ID:Content-Type; b=FzADFu4kgdN7I/9HeTRt6J662k9trs7EfjlStImF9h7c0MdQHPUvUkOy/4tPilLGoO/VU3N6HxKDy75qfn7KQGG6BIis6SnZFk5AEb+QZ9vVAThGFoJTPwpxJB0yIllQef1a4Y8z1NnsDrn6RPqdZa6jQAXy9bzvLaTrNSaCLko= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=Ed6rwpt2; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=H2yv2z3/; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="Ed6rwpt2"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="H2yv2z3/" Date: Wed, 13 Mar 2024 09:16:59 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1710321420; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=rRlQGyhZFVjQ4qM9e0Ekd5/R5Rqi8++m4vJCSr26Mj8=; b=Ed6rwpt2/oWdT7rO0xZi9lx7EkPuxNHLMa4QacKnOgL3C+5CJ5GygbdMlF57/7EOe6V+TE 5uVFEaeBnEgr/rQ8KooF7P1xHbyvIBJWYfh5x0jwkDXeuv6cb41y6Gmz7OXlELKH1/06Fl Ri+PMgbX3+hQ0w1RhGKEEAXxPY8P/8chkQ5OcJJwopUVHh2z0IpUOdlItOoCyOPraKDigX 1FddWU8arqYM+21AMH5LUvoK2MmVivZ63O72QWQ2aRMZvZBjNtXazm6aqW2fTNqIAy3cH3 BCfnYUW9X3fZHbq7D6tthf90GOAthtxyhpzpvqkEp9IV99xEtOWFKQ4KBo9Ivg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1710321420; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=rRlQGyhZFVjQ4qM9e0Ekd5/R5Rqi8++m4vJCSr26Mj8=; b=H2yv2z3/7DlWhihI2z3Sdc6FH9ShHgabVd4m5sPaYdcmJVB02CXNkBF8idJr8HhaM7dL8s rLHJ8JUZuYsPRuBw== From: "tip-bot2 for Dave Hansen" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: x86/urgent] Revert "x86/bugs: Use fixed addressing for VERW operand" Cc: Dave Hansen , Ingo Molnar , x86@kernel.org, linux-kernel@vger.kernel.org Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <171032141964.398.11885459177041650089.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Precedence: bulk Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable The following commit has been merged into the x86/urgent branch of tip: Commit-ID: bfa5fa246c0724c2cc1bd0dfe57531aaa7f520c1 Gitweb: https://git.kernel.org/tip/bfa5fa246c0724c2cc1bd0dfe57531aaa= 7f520c1 Author: Dave Hansen AuthorDate: Tue, 12 Mar 2024 07:27:57 -07:00 Committer: Ingo Molnar CommitterDate: Wed, 13 Mar 2024 10:08:09 +01:00 Revert "x86/bugs: Use fixed addressing for VERW operand" This was reverts commit 8009479ee919b9a91674f48050ccbff64eafedaa. It was originally in x86/urgent, but was deemed wrong so got zapped. But in the meantime, x86/urgent had been merged into x86/apic to resolve a conflict. I didn't notice the merge so didn't zap it from x86/apic and it managed to make it up with the x86/apic material. The reverted commit is known to cause some KASAN problems. Signed-off-by: Dave Hansen Signed-off-by: Ingo Molnar --- arch/x86/include/asm/nospec-branch.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/no= spec-branch.h index d0b8bb7..fc3a8a3 100644 --- a/arch/x86/include/asm/nospec-branch.h +++ b/arch/x86/include/asm/nospec-branch.h @@ -314,7 +314,7 @@ * Note: Only the memory operand variant of VERW clears the CPU buffers. */ .macro CLEAR_CPU_BUFFERS - ALTERNATIVE "", __stringify(verw mds_verw_sel), X86_FEATURE_CLEAR_CPU_BUF + ALTERNATIVE "", __stringify(verw _ASM_RIP(mds_verw_sel)), X86_FEATURE_CLE= AR_CPU_BUF .endm =20 #else /* __ASSEMBLY__ */