From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0B4D6C2BA1A for ; Thu, 20 Jun 2024 16:26:27 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=AaWGCEH0; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4W4m8J5NRGz3cVn for ; Fri, 21 Jun 2024 02:26:24 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=AaWGCEH0; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=2604:1380:40e1:4800::1; helo=sin.source.kernel.org; envelope-from=arnd@kernel.org; receiver=lists.ozlabs.org) Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4W4m5V48wPz3cTM for ; Fri, 21 Jun 2024 02:23:58 +1000 (AEST) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 6A3ABCE2741; Thu, 20 Jun 2024 16:23:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id ECB5EC4AF07; Thu, 20 Jun 2024 16:23:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718900636; bh=Doj0//VPfq9z758xR2+yZ79Db+NeekZ0EoHrfr9q2Q0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AaWGCEH0FUtHpMS1MWl92zyMC/tgI55ZbXl6tZ3t5C3/D90MhQY7LMPv52sRtXgX7 /tDHOQ6fobnn4uVWb5vNTuBQIwEAxDas3AiEfhSop6feRAWhRnZ+da7P7VMngnhmkk uKday5m0uC0pCQIfQjJmNfph+BSKsE6mupZiTK4nCMh6ev02nOQHZHAifS9GhfJcf8 Av2+SR2IBKxnqrqNk3UUKHECPl0wYIrYeODFjmzBUOQioGFpi7EdScbEqPk5DdwfzV /j7R+AlsEtHGaZd/7u8r6X3V3OMunqnE6kTRg7ZdDsGpPmUCRt3Q2a3/R9uSNNqkgU 9t5D3HmhZEJ5Q== From: Arnd Bergmann To: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 03/15] mips: fix compat_sys_lseek syscall Date: Thu, 20 Jun 2024 18:23:04 +0200 Message-Id: <20240620162316.3674955-4-arnd@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240620162316.3674955-1-arnd@kernel.org> References: <20240620162316.3674955-1-arnd@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rich Felker , Andreas Larsson , Guo Ren , Christophe Leroy , "H. Peter Anvin" , sparclinux@vger.kernel.org, linux-s390@vger.kernel.org, Helge Deller , linux-sh@vger.kernel.org, linux-csky@vger.kernel.org, "Naveen N . Rao" , Arnd Bergmann , Heiko Carstens , musl@lists.openwall.com, Nicholas Piggin , Alexander Viro , John Paul Adrian Glaubitz , ltp@lists.linux.it, Brian Cain , Christian Brauner , Thomas Bogendoerfer , libc-alpha@sourceware.org, linux-parisc@vger.kernel.org, linux-mips@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-fsdevel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, "David S. Miller" Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Arnd Bergmann This is almost compatible, but passing a negative offset should result in a EINVAL error, but on mips o32 compat mode would seek to a large 32-bit byte offset. Use compat_sys_lseek() to correctly sign-extend the argument. Signed-off-by: Arnd Bergmann --- arch/mips/kernel/syscalls/syscall_o32.tbl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl index 85751c9b9cdb..2439a2491cff 100644 --- a/arch/mips/kernel/syscalls/syscall_o32.tbl +++ b/arch/mips/kernel/syscalls/syscall_o32.tbl @@ -27,7 +27,7 @@ 17 o32 break sys_ni_syscall # 18 was sys_stat 18 o32 unused18 sys_ni_syscall -19 o32 lseek sys_lseek +19 o32 lseek sys_lseek compat_sys_lseek 20 o32 getpid sys_getpid 21 o32 mount sys_mount 22 o32 umount sys_oldumount -- 2.39.2