Dmitry Monakhov e77b89f13a [CPUFREQ] Fix use after free on governor restore ... Currently on governer backup/restore path we storing governor's pointer. This is wrong because one may unload governor's module after cpu goes offline. As result use-after-free will take place on restored cpu. It is not easy to exploit this bug, but still we have to close this issue ASAP. Issue was introduced by following commit 084f349394 ##TESTCASE## #!/bin/sh -x modprobe acpi_cpufreq # Any non default governor, in may case it is "ondemand" modprobe cpufreq_ondemand echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor rmmod acpi_cpufreq rmmod cpufreq_ondemand modprobe acpi_cpufreq # << use-after-free here. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Dave Jones <davej@redhat.com>		2009-11-17 23:15:04 -05:00
..
cpufreq.c	[CPUFREQ] Fix use after free on governor restore	2009-11-17 23:15:04 -05:00
cpufreq_conservative.c	Merge branch 'percpu-for-linus' into percpu-for-next	2009-08-14 14:45:31 +09:00
cpufreq_ondemand.c	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq	2009-09-18 09:16:57 -07:00
cpufreq_performance.c	[CPUFREQ] Don't export governors for default governor	2008-10-09 13:52:44 -04:00
cpufreq_powersave.c	[CPUFREQ] Don't export governors for default governor	2008-10-09 13:52:44 -04:00
cpufreq_stats.c	[CPUFREQ] checkpatch cleanups for cpufreq_stats	2009-02-24 22:47:30 -05:00
cpufreq_userspace.c	[CPUFREQ] checkpatch cleanups for userspace governor	2009-02-24 22:47:30 -05:00
freq_table.c	[CPUFREQ] checkpatch cleanups for freq_table	2009-02-24 22:47:30 -05:00
Kconfig	trivial: fix an -> a typos in documentation and comments	2009-01-06 11:28:07 +01:00
Makefile	[CPUFREQ] Conservative cpufreq governer	2005-05-31 19:03:47 -07:00