http://lists.debian.org/debian-x/2005/10/msg00616.html
[Date Prev <http://lists.debian.org/debian-x/2005/10/msg00615.html>][Date Next <http://lists.debian.org/debian-x/2005/10/msg00617.html>] [Thread Prev <http://lists.debian.org/debian-x/2005/10/msg00613.html>][Thread Next <http://lists.debian.org/debian-x/2005/10/msg00617.html>] [Date Index <http://lists.debian.org/debian-x/2005/10/mail2.html#00616>] [Thread Index <http://lists.debian.org/debian-x/2005/10/thrd2.html#00616>] Bug#336220: xdm: bogus /dev/mem access lead to trouble on arm platforms ------------------------------------------------------------------------ * /To/: Debian Bug Tracking System <[EMAIL PROTECTED] <mailto:submit%40bugs.debian.org>> * /Subject/: Bug#336220: xdm: bogus /dev/mem access lead to trouble on arm platforms * /From/: Lennert Buytenhek <[EMAIL PROTECTED] <mailto:buytenh%2Bdebian%40wantstofly.org>> * /Date/: Fri, 28 Oct 2005 19:47:14 +0200 * /Message-id/: <[EMAIL PROTECTED] <http://lists.debian.org/debian-x/2005/10/msg00616.html>> * /Reply-to/: Lennert Buytenhek <[EMAIL PROTECTED] <mailto:buytenh%2Bdebian%40wantstofly.org>>, [EMAIL PROTECTED] <mailto:336220%40bugs.debian.org> ------------------------------------------------------------------------ Package: xdm Severity: important On arm platforms where physical RAM doesn't start at physical address zero, opening /dev/mem and reading from it causes a kernel oops. This is arguably a kernel bug, but it's still not a very good idea to just start randomly poking around in /dev/mem in search of entropy, which is what xdm does if it can't get entropy elsewhere. (When the kernel is fixed, blindly reading from /dev/mem will simply just fail with EFAULT instead of oopsing. If that will cause xdm to fail, it should really just fail right away if /dev/random doesn't work.) -- System Information: Debian Release: testing/unstable APT prefers stable APT policy: (500, 'stable') Architecture: armeb (armv4b) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.6.13 Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
