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linux/arch/x86/kernel/cpu
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Jiri Olsa 7f00f38871 x86/intel_rdt: Fix locking in rdtgroup_schemata_write() 
The schemata lock is released before freeing the resource's temporary
tmp_cbms allocation. That's racy versus another write which allocates and
uses new temporary storage, resulting in memory leaks, freeing in use
memory, double a free or any combination of those.

Move the unlock after the release code.

Fixes: 60ec2440c6 ("x86/intel_rdt: Add schemata file")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Shaohua Li <shli@fb.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/20170411071446.15241-1-jolsa@kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-11 09:48:12 +02:00
..
mcheck Merge branch 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-04-03 08:36:24 -07:00
microcode Merge branch 'x86/urgent' into x86/microcode, to resolve conflicts 2017-01-31 08:38:17 +01:00
mtrr
.gitignore
amd.c Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-03-07 14:42:34 -08:00
bugs.c
centaur.c Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-03-07 14:42:34 -08:00
common.c Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-03-07 14:42:34 -08:00
cpu.h
cyrix.c Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-03-07 14:42:34 -08:00
hypervisor.c
intel.c Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-03-07 14:42:34 -08:00
intel_cacheinfo.c sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h> 2017-03-02 08:42:31 +01:00
intel_rdt.c
intel_rdt_rdtgroup.c x86/intel_rdt: Put group node in rdtgroup_kn_unlock 2017-03-14 21:51:58 +01:00
intel_rdt_schemata.c x86/intel_rdt: Fix locking in rdtgroup_schemata_write() 2017-04-11 09:48:12 +02:00
Makefile
match.c
mkcapflags.sh
mshyperv.c Drivers: hv: vmbus: Move the extracting of Hypervisor version information 2017-01-20 14:48:03 +01:00
perfctr-watchdog.c
powerflags.c
proc.c
rdrand.c
scattered.c
topology.c
transmeta.c Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-03-07 14:42:34 -08:00
umc.c
vmware.c x86/vmware: Remove duplicate inclusion of asm/timer.h 2017-03-01 10:51:40 +01:00