From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=178.62.254.231 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792588929; b=UvkBpZMC4ZZOSCcf6toeHVvT5CM390mO6PDhwsoXHTpHBIMNxLzqBe7YHcaF91ElTeoU TB5MgEQGJkeF4SuQAeBoenFmwDFVbx5XlRStV9Qq1p6n/RBbtIYS194B5BjsKjvxWBun9 ZG4fj7kYBwg6f1+wEtWmjuNLTtwUqzJOg7nJS1/92y7HsnVNoOAKON55gG7TpddTlgV96 GWJ93c+MWCMN14vKRdtOPyS6zuz54FuBEI8tzlQ9bx4KKACYgGk028kMikxH+WV9VO+ts kYf72aVOABeL/pd7ufKeGhe1DwY6mLZlfpmEdGo91wAAhqTX5pWlS7xFLOxFpDbPGLg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792588929; h=DMARC-Filter:DKIM-Signature:Received:Date:From:To:Cc:Subject: Message-ID:References:MIME-Version:Content-Type:Content-Disposition: In-Reply-To; bh=65N90uPbM/sdMt8va6PqR38knOi26pRgfR4jLxN0nvk=; b=CsK0Ibt46gj0SeYEWRD9TRRkcdxczqdXYC64aukjVXhDL6LieiKkERZlNoFdW3YAu1DG CiQ6+plEB5daBGUfcSnf7jLOQrCufox7oJwUD45ilfOot2L+GzqyErXo0uimY7msQzdbR jn7CBVZ7/jhCXux0Kg4s4Ypi9CfRU2EQOAFSkfjclakhIqExXqdyJkc44l+huUB6OHgzR Echx423gA0o6KwYqjfdCMzaijv255F2n0PPuMkd8KcOIilFcgSToTJdB0E/glfIMsvHzd 9ytzHYy5LOU57CXgl8FOIm9PhKCqF5qp+ppn+7IxL9q8aETyBxJSpekPiKt5LXC4+Sg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=ilvokhin.com; spf=pass smtp.mailfrom=ilvokhin.com; dkim=pass header.d=ilvokhin.com header.i=@ilvokhin.com header.a=rsa-sha256 header.s=mail header.b=UixTt+x9; arc=none smtp.remote-ip=178.62.254.231 Received: from mail.ilvokhin.com (mail.ilvokhin.com [178.62.254.231]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 21062606A31B for ; Wed, 21 Oct 2026 13:22:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 21062606A31B Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=ilvokhin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ilvokhin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=ilvokhin.com header.i=@ilvokhin.com header.a=rsa-sha256 header.s=mail header.b=UixTt+x9 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ilvokhin.com; s=mail; t=1792588927; bh=65N90uPbM/sdMt8va6PqR38knOi26pRgfR4jLxN0nvk=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=UixTt+x9fMWQonWdwqfejMalpW1YMzckC1lRc4Wx6Syf1oTxdianh3UVszi3gnbq+ 17QUSoZ/mwkt/OWg0EQdyBPHPToJk0VdmrjOPYDVd5HowDNNl/KFKAZKtJEki1EipV 4IWjbqernTRE2UQ0+/kKLeHq3e41yQYvv7mOVjOs= Received: from shell.ilvokhin.com (shell.ilvokhin.com [138.68.190.75]) (Authenticated sender: d@ilvokhin.com) by mail.ilvokhin.com (Postfix) with ESMTPSA id 6536AFB949; Wed, 21 Oct 2026 13:22:07 +0000 (UTC) Date: Wed, 21 Oct 2026 13:22:06 +0000 From: Dmitry Ilvokhin To: Bart Van Assche Cc: linux-sparse@vger.kernel.org Subject: Re: [PATCH 03/20] bits: Guard against out-of-bounds bit shifts in bitmask helpers Message-ID: References: <20261019175633.415493-1-bvanassche@acm.org> <20261019175633.415493-4-bvanassche@acm.org> X-Mailing-List: linux-sparse@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261019175633.415493-4-bvanassche@acm.org> On Mon, Oct 19, 2026 at 10:56:16AM -0700, Bart Van Assche wrote: > Clamp bit widths to [0, 64] in bits.h and fix 64-bit shift calculations > in bitmap.h to avoid undefined shift behavior on 64-bit integers. > > Signed-off-by: Bart Van Assche Reviewed-by: Dmitry Ilvokhin