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Peter Zijlstra 70e65f281a perf/x86: Fix possible Spectre-v1 indexing for x86_pmu::event_map() 
commit 46b1b577229a091b137831becaa0fae8690ee15a upstream.

> arch/x86/events/intel/cstate.c:307 cstate_pmu_event_init() warn: potential spectre issue 'pkg_msr' (local cap)
> arch/x86/events/intel/core.c:337 intel_pmu_event_map() warn: potential spectre issue 'intel_perfmon_event_map'
> arch/x86/events/intel/knc.c:122 knc_pmu_event_map() warn: potential spectre issue 'knc_perfmon_event_map'
> arch/x86/events/intel/p4.c:722 p4_pmu_event_map() warn: potential spectre issue 'p4_general_events'
> arch/x86/events/intel/p6.c:116 p6_pmu_event_map() warn: potential spectre issue 'p6_perfmon_event_map'
> arch/x86/events/amd/core.c:132 amd_pmu_event_map() warn: potential spectre issue 'amd_perfmon_event_map'

Userspace controls @attr, sanitize @attr->config before passing it on
to x86_pmu::event_map().

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 10:08:45 +02:00
..
alpha
vgacon: Set VGA struct resource types
2018-03-24 11:00:25 +01:00
arc
ARC: uaccess: dont use "l" gcc inline asm constraint modifier
2018-01-10 09:29:53 +01:00
arm
arm/arm64: KVM: Add PSCI version selection API
2018-05-09 09:50:19 +02:00
arm64
arm64: Add work around for Arm Cortex-A55 Erratum 1024718
2018-05-16 10:08:42 +02:00
avr32
Merge branch 'akpm' (patches from Andrew)
2016-10-07 21:38:00 -07:00
blackfin
pinctrl: adi2: Fix Kconfig build problem
2017-12-20 10:07:32 +01:00
c6x
c6x/ptrace: Remove useless PTRACE_SETREGSET implementation
2017-03-31 10:31:46 +02:00
cris
cris: Only build flash rescue image if CONFIG_ETRAX_AXISFLASHMAP is selected
2017-01-12 11:39:24 +01:00
frv
frv: declare jiffies to be located in the .data section
2018-04-08 12:12:45 +02:00
h8300
h8300/ptrace: Fix incorrect register transfer count
2017-03-31 10:31:46 +02:00
hexagon
nmi_backtrace: generate one-line reports for idle cpus
2016-10-07 18:46:30 -07:00
ia64
ia64: fix module loading for gcc-5.4
2018-03-24 11:00:20 +01:00
m32r
mm: replace access_process_vm() write parameter with gup_flags
2016-10-19 08:31:25 -07:00
m68k
m68k: add missing SOFTIRQENTRY_TEXT linker section
2018-02-25 11:05:47 +01:00
metag
metag/uaccess: Check access_ok in strncpy_from_user
2017-05-25 15:44:46 +02:00
microblaze
Merge branch 'work.uaccess2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-10-11 23:38:39 -07:00
mips
MIPS: Generic: Fix big endian CPUs on generic machine
2018-04-29 11:31:56 +02:00
mn10300
mn10300/misalignment: Use SIGSEGV SEGV_MAPERR to report a failed user copy
2018-02-17 13:21:20 +01:00
nios2
nios2: reserve boot memory for device tree
2017-04-12 12:41:14 +02:00
openrisc
signal/openrisc: Fix do_unaligned_access to send the proper signal
2018-02-17 13:21:19 +01:00
parisc
parisc: Fix out of array access in match_pci_device()
2018-04-20 08:20:40 +02:00
powerpc
KVM: PPC: Book3S HV: Fix trap number return from __kvmppc_vcore_entry
2018-05-16 10:08:42 +02:00
s390
s390/facilites: use stfle_fac_list array size for MAX_FACILITY_BIT
2018-05-09 09:50:24 +02:00
score
Merge branch 'gup_flag-cleanups'
2016-10-19 08:39:47 -07:00
sh
SolutionEngine771x: fix Ether platform data
2018-03-03 10:23:27 +01:00
sparc
sparc64: ldc abort during vds iso boot
2018-04-13 19:48:27 +02:00
tile
mm: larger stack guard gap, between vmas
2017-06-24 07:11:18 +02:00
um
um: Use POSIX ucontext_t instead of struct ucontext
2018-04-24 09:34:13 +02:00
unicore32
unicore32: use simpler API for random address requests
2016-10-11 15:06:32 -07:00
x86
perf/x86: Fix possible Spectre-v1 indexing for x86_pmu::event_map()
2018-05-16 10:08:45 +02:00
xtensa
xtensa: fix high memory/reserved memory collision
2018-02-28 10:18:30 +01:00
.gitignore
…
Kconfig
This adds a new gcc plugin named "latent_entropy". It is designed to
2016-10-15 10:03:15 -07:00