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 8846482C63; Mon, 1 Jul 2024 00:13:29 +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=1719792809; cv=none; b=eJbGsedz3vgR/3ESpV8jzACJaG22hZqfXwFkYEl0FGV2Qk7Jc0l3a7CylyZeetaVzqDbKKRipRGqBu9x+ZTVI9uvFn2ij2a6mOUR5zmpGuYuuIEq/H7Ox7eYnR0O5nOC/nZLRmJ8y0epA6AKckAt5Kx/mOtb9cKdmzj8TQzKyt4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719792809; c=relaxed/simple; bh=9kZtq5Pv7UgvTiZujv39ShTgDbAphEjPiqOPenduPIk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=CMICbT5ME18tRL7ashTRvdNCczc+x8mDYYbKjpx24kYiJ+ewI22psiNUI/7vCs1HYFbpoRPOMpeKuitA3EPpqTphJREvZdz4oW/rJ/axqkDUtMBZ1hnCsw3vTutYOq+HjSPNbkCPYzYY3KS9ImbiGfmY5rD2VlJ6roiAjLrrgTk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=UEoOaIg+; 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="UEoOaIg+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CC883C4AF0B; Mon, 1 Jul 2024 00:13:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1719792809; bh=9kZtq5Pv7UgvTiZujv39ShTgDbAphEjPiqOPenduPIk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UEoOaIg+WY8dbAftQmYID95Hf6LRJaNc/ydgJm7k4hnZXUggH6arJIbxH9Gm/MUtV EiRcAraOl8kwok6G1JfnIKBCyGKrNMg85cW9IGWtn2qDvMZcnTY6g5nm20/eTk0e1I QDXcibwAs02lMCbm94AFTSnaO2oMHRsJ0VwcrO32Ab71GNrZyxJsy8zmVzTAhM0wGa CJvtdxJZb/D+iQDssVcrKhRsnEGbP0f4nMdxNJhvDbMRvSzocdio1pidRa/Zd9+5gA IL9D2CxFwNTsP/nn+AsslFtFhKHwISQdS4SqQQ1wkEH34mLuM+kjAAtm8gf/Q018zf XQlQOntdwnfAA== 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, sohil.mehta@intel.com, casey@schaufler-ca.com, jeffxu@chromium.org, mszeredi@redhat.com, linux-mips@vger.kernel.org Subject: [PATCH AUTOSEL 6.9 19/20] mips: fix compat_sys_lseek syscall Date: Sun, 30 Jun 2024 20:11:24 -0400 Message-ID: <20240701001209.2920293-19-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240701001209.2920293-1-sashal@kernel.org> References: <20240701001209.2920293-1-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 6.9.7 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 f45c9530ea93a..6a405cb4218b6 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