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Peter Zijlstra 6467123872 perf/x86/msr: Fix possible Spectre-v1 indexing in the MSR driver 
commit 06ce6e9b6d6c09d4129c6e24a1314a395d816c10 upstream.

> arch/x86/events/msr.c:178 msr_event_init() warn: potential spectre issue 'msr' (local cap)

Userspace controls @attr, sanitize cfg (attr->config) before using it
to index an array.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: <stable@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-16 10:10:31 +02:00
..
alpha
vgacon: Set VGA struct resource types
2018-03-24 11:01:25 +01:00
arc
.gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore
2018-02-13 10:19:46 +01:00
arm
arm/arm64: KVM: Add PSCI version selection API
2018-05-01 12:58:27 -07:00
arm64
arm64: Add work around for Arm Cortex-A55 Erratum 1024718
2018-05-16 10:10:25 +02:00
blackfin
pinctrl: adi2: Fix Kconfig build problem
2017-12-20 10:10:34 +01:00
c6x
License cleanup: add SPDX license identifier to uapi header files with a license
2017-11-02 11:20:11 +01:00
cris
License cleanup: add SPDX license identifier to uapi header files with no license
2017-11-02 11:19:54 +01:00
frv
License cleanup: add SPDX license identifier to uapi header files with a license
2017-11-02 11:20:11 +01:00
h8300
h8300: remove extraneous __BIG_ENDIAN definition
2018-03-28 18:24:38 +02:00
hexagon
License cleanup: add SPDX license identifier to uapi header files with a license
2017-11-02 11:20:11 +01:00
ia64
ia64, sched/cputime: Fix build error if CONFIG_VIRT_CPU_ACCOUNTING_NATIVE=y
2018-03-03 10:24:35 +01:00
m32r
m32r: fix endianness constraints
2018-02-28 10:19:44 +01:00
m68k
m68k: add missing SOFTIRQENTRY_TEXT linker section
2018-02-25 11:07:58 +01:00
metag
.gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore
2018-02-13 10:19:46 +01:00
microblaze
microblaze: Setup dependencies for ASM optimized lib functions
2018-04-29 11:33:16 +02:00
mips
MIPS: Generic: Support GIC in EIC mode
2018-04-26 11:02:17 +02:00
mn10300
mn10300/misalignment: Use SIGSEGV SEGV_MAPERR to report a failed user copy
2018-02-16 20:23:11 +01:00
nios2
.gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore
2018-02-13 10:19:46 +01:00
openrisc
kmemcheck: remove annotations
2018-02-22 15:42:23 +01:00
parisc
parisc: Fix HPMC handler by increasing size to multiple of 16 bytes
2018-04-19 08:56:16 +02:00
powerpc
KVM: PPC: Book3S HV: Fix VRMA initialization with 2MB or 1GB memory backing
2018-05-16 10:10:25 +02:00
s390
s390/uprobes: implement arch_uretprobe_is_alive()
2018-04-29 11:33:18 +02:00
score
License cleanup: add SPDX license identifier to uapi header files with no license
2017-11-02 11:19:54 +01:00
sh
SolutionEngine771x: fix Ether platform data
2018-03-03 10:24:36 +01:00
sparc
sparc64: update pmdp_invalidate() to return old pmd value
2018-04-26 11:02:14 +02:00
tile
fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall
2017-12-17 15:07:59 +01:00
um
um: Use POSIX ucontext_t instead of struct ucontext
2018-04-24 09:36:33 +02:00
unicore32
kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK
2018-02-22 15:42:23 +01:00
x86
perf/x86/msr: Fix possible Spectre-v1 indexing in the MSR driver
2018-05-16 10:10:31 +02:00
xtensa
xtensa: fix high memory/reserved memory collision
2018-02-28 10:19:38 +01:00
.gitignore
…
Kconfig
kprobes: Use synchronize_rcu_tasks() for optprobe with CONFIG_PREEMPT=y
2017-12-10 13:40:40 +01:00