From patchwork Thu Jun 20 16:23:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 13705885 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 690621B47CA; Thu, 20 Jun 2024 16:23:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718900636; cv=none; b=SLHvIDdJtyFoX/nTf90cdcwZXn4DdKg0qIgbvkJsP/UmCRWmtXiVQ6EzeYOKxOP77f1tauvf1HjQOX+MxTxBpGNw3GaGQwccsaZcqXtj7r4FXq7RjThds7j/1GsEElB5tHimq2jWb1R+zIdzh16EYhrZlo4lkDnkQnNTsIBIiZE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718900636; c=relaxed/simple; bh=Doj0//VPfq9z758xR2+yZ79Db+NeekZ0EoHrfr9q2Q0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=K1BAVjZTkKi3r4OrxVbeVxl1T+qZ43ncBu3FboudIkrt8/tstL8hfaQvdnSgKmir2hT4mzXWvwCpo4ht7OMmz8fDACfNNoeg1gzyz6dp7FvtL8K9ii/uI6VjK+/pCCtAoNrnhV41orduMRLLN2xkyVge0Mvpzos8azUksBq6/UY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=AaWGCEH0; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="AaWGCEH0" 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 Cc: Arnd Bergmann , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Helge Deller , linux-parisc@vger.kernel.org, "David S. Miller" , Andreas Larsson , sparclinux@vger.kernel.org, Michael Ellerman , Nicholas Piggin , Christophe Leroy , "Naveen N . Rao" , linuxppc-dev@lists.ozlabs.org, Brian Cain , linux-hexagon@vger.kernel.org, Guo Ren , linux-csky@vger.kernel.org, Heiko Carstens , linux-s390@vger.kernel.org, Rich Felker , John Paul Adrian Glaubitz , linux-sh@vger.kernel.org, "H. Peter Anvin" , Alexander Viro , Christian Brauner , linux-fsdevel@vger.kernel.org, libc-alpha@sourceware.org, musl@lists.openwall.com, ltp@lists.linux.it 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> Precedence: bulk X-Mailing-List: linux-sh@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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