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

x86: Apply more __ro_after_init and const

2016-08-10 14:55:05 +02:00

.gitignore

Update .gitignore files for generated targets

2008-10-20 11:24:31 -07:00

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

x86/cpu: Merge bugs.c and bugs_64.c

2016-10-25 11:48:50 +02:00

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

x86/cpu: Restore MSR_IA32_ENERGY_PERF_BIAS after resume

2015-07-21 07:51:38 +02:00

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

virt, sched: Add generic vCPU pinning support

2016-09-05 13:52:38 +02:00

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_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

intel_rdt.c

x86/intel_rdt: Add scheduler hook

2016-10-30 19:10:16 -06:00

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

Makefile

Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2016-12-22 09:25:45 -08:00

match.c

x86/kernel: Audit and remove any unnecessary uses of module.h

2016-07-14 15:06:41 +02:00

mkcapflags.sh

x86/cpufeature: Carve out X86_FEATURE_*

2016-01-30 11:22:17 +01:00

mshyperv.c

Drivers: hv: vmbus: Move the extracting of Hypervisor version information

2017-01-20 14:48:03 +01:00

perfctr-watchdog.c

x86/kernel: Audit and remove any unnecessary uses of module.h

2016-07-14 15:06:41 +02:00

powerflags.c

x86/cpu: Add advanced power management bits

2016-03-29 11:12:11 +02:00

proc.c

x86: Replace cpu_**_mask() with topology_**_cpumask()

2015-05-27 15:22:17 +02:00

rdrand.c

x86, asm: Use CC_SET()/CC_OUT() and static_cpu_has() in archrandom.h

2016-06-08 12:41:20 -07:00

scattered.c

Merge branch 'x86/cpufeature' into x86/cache

2016-11-16 14:19:34 +01:00

topology.c

x86/cpu: Convert printk(KERN_<LEVEL> ...) to pr_<level>(...)

2016-02-03 10:30:03 +01:00

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

x86: Delete non-required instances of include <linux/init.h>

2014-01-06 21:25:18 -08:00

vmware.c

x86/vmware: Remove duplicate inclusion of asm/timer.h

2017-03-01 10:51:40 +01:00