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 1BEE81C693; Fri, 5 Jul 2024 21:21:13 +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=1720214474; cv=none; b=LP14KMTnYSjQPH9+c6hrFY3ikVNParHSmAg+mFN3SF4UjhUj+1eV6khUZ6/IpoHhyD+JJEPjU5G+cXSudDLmHBscytii6P7Ho+jT0FKH+URIc6d9Wb2TLkKIqBei1DK0JHFmL+iO11wfIWgq8a6qVijEjwLNOXOQM+HQIKQJldY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720214474; c=relaxed/simple; bh=259vAtFtfFin4zEglf9j2Tb2pv1+bgwmfztPjJ7NXCs=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=CwbDofk9R1J9RGBOiwU2BklTROBC4m5mUCpNK902yFVTFJy5PsRgULNpf8reeryV2XQX7drvs5YloL76KIh+UuKZawhMuTd+1sGSCZOAJugl43aELdQvzgwcQsW6mxQJnP+7uCr8bPemctma/IaF4M/uX0WNmiyi+uMjTN/QPu8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hCzI3kcO; 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="hCzI3kcO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8DB39C116B1; Fri, 5 Jul 2024 21:21:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1720214473; bh=259vAtFtfFin4zEglf9j2Tb2pv1+bgwmfztPjJ7NXCs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hCzI3kcOSn8qkbh+/OajhItq1LWdc4obfyVBb33qBP0YL4g1Oa8uqRZQupqRnYQbZ aMELap0lVZzrGwyNzPJ5cna0mZNOvDy0oJmFpnF5sE83DTj5UhPk23AUDXCzHwbhbo IIAJTSO51aELYmb7dNEY5qkUOO9OE4jkZMJ0KNLQP445tA09JIeS8mMp0/QG6YOvMu GO8Tyl/kuey89xenHruWQolaRu5xKcT1xw3IfEngw1osOmR6+/8ygkpbXl8U0Yk2aj yPcZEcKjaAr8tSc70/dV7B62i15j6Hdw7Zxm5uOpiYNVwI99jptZNTRpQ3LtJQx0F2 Ug1AaCkk6UJWA== From: Kees Cook To: syzbot+efde959319469ff8d4d7@syzkaller.appspotmail.com, Edward Adam Davis Cc: Kees Cook , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [PATCH] hfsplus: fix uninit-value in copy_name Date: Fri, 5 Jul 2024 14:20:54 -0700 Message-Id: <172021445223.2844396.7059951310501602233.b4-ty@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: <00000000000037162f0618b6fefb@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit On Tue, 21 May 2024 13:21:46 +0800, Edward Adam Davis wrote: > [syzbot reported] > BUG: KMSAN: uninit-value in sized_strscpy+0xc4/0x160 > sized_strscpy+0xc4/0x160 > copy_name+0x2af/0x320 fs/hfsplus/xattr.c:411 > hfsplus_listxattr+0x11e9/0x1a50 fs/hfsplus/xattr.c:750 > vfs_listxattr fs/xattr.c:493 [inline] > listxattr+0x1f3/0x6b0 fs/xattr.c:840 > path_listxattr fs/xattr.c:864 [inline] > __do_sys_listxattr fs/xattr.c:876 [inline] > __se_sys_listxattr fs/xattr.c:873 [inline] > __x64_sys_listxattr+0x16b/0x2f0 fs/xattr.c:873 > x64_sys_call+0x2ba0/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:195 > do_syscall_x64 arch/x86/entry/common.c:52 [inline] > do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 > entry_SYSCALL_64_after_hwframe+0x77/0x7f > > [...] I've taken some security-related hfsplus stuff before, so: Applied to for-next/hardening, thanks! [1/1] hfsplus: fix uninit-value in copy_name https://git.kernel.org/kees/c/974a00974829 Take care, -- Kees Cook