From mboxrd@z Thu Jan 1 00:00:00 1970 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 3E552157495; Mon, 1 Jul 2024 00:14:33 +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=1719792873; cv=none; b=GJoHbEThYn69noTXbCRk7cwwTQiEln2/keFFHH/KUz6uL/XKJxXNr9trqKANi/dT/+I43+zRIu672NbcGdO04HxjSukHpU32Bumbq5H/FTvgF5/h6crxtMOpHaQuFL/w6sIzFF6l66Yfh3F6PXfRUa7/Hr9FEAfVAdrv1MIKcWg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719792873; c=relaxed/simple; bh=6MrW6dg08bfMTpI1SGE8CHFNbuQufmErMcTfC3ZLpJs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MI71eVyyn/wOCoOw6eC2zBjAw3jKQD1HNyn5fjZMJvfifkMPXrcFydJuc7yJJXhdu1AbioRblykMwHiPifyEnfJld2OATnwKX7nFiX091PjrSBTv9fMdQgpJRefM9iq5gMS/VIMspaCJ0x66DHImSMgFHBMl6UfxydXfeyNtrFQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=QSYq8ySq; 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="QSYq8ySq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BC6A1C2BD10; Mon, 1 Jul 2024 00:14:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1719792873; bh=6MrW6dg08bfMTpI1SGE8CHFNbuQufmErMcTfC3ZLpJs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QSYq8ySq7bKyYGF+jYyImv1V3kHj79hhW8RU49tqmYjQMe1bOJkv0ohyO2iOYbuy7 y70yLp8Jk1+aKe3BbfNUd8ClLn6bvLRlwWqwV3ABXk9MdVugBjgnnVDerHI8hRqMO7 cAmAhq4XGFobH8SHBIS3/W3/VvYMLXc1Xb/D5dxKYR3SkLJeg7mQ2oK8fH+6mjBRMc 3SYxG0B2atEY8lwfnvyGXGmHdo8HL55J8op94D/jwmxjrqihQxt7qjq4xNFzDFgTMq /rX0OEt4v/jomJKvO24W2b+SJyPYgaWcOMpPWGf6m++oM1mll9auwiAr4tfaGHuOhe Fyvcfv0rSvgNQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Arnd Bergmann , Thomas Bogendoerfer , Sasha Levin , geert@linux-m68k.org, tglx@linutronix.de, peterz@infradead.org, kees@kernel.org, sohil.mehta@intel.com, casey@schaufler-ca.com, mszeredi@redhat.com, linux-mips@vger.kernel.org Subject: [PATCH AUTOSEL 6.1 5/5] mips: fix compat_sys_lseek syscall Date: Sun, 30 Jun 2024 20:14:15 -0400 Message-ID: <20240701001420.2921203-5-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240701001420.2921203-1-sashal@kernel.org> References: <20240701001420.2921203-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.1.96 Content-Transfer-Encoding: 8bit From: Arnd Bergmann [ Upstream commit 0d5679a0aae2d8cda72169452c32e5cb88a7ab33 ] 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 Signed-off-by: Thomas Bogendoerfer Signed-off-by: Sasha Levin --- 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 8f243e35a7b20..2c8bb6c630d9c 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 -- 2.43.0