Peter Zijlstra 4411ec1d19 perf/core: Fix possible Spectre-v1 indexing for ->aux_pages[] ...

> kernel/events/ring_buffer.c:871 perf_mmap_to_page() warn: potential spectre issue 'rb->aux_pages'

Userspace controls @pgoff through the fault address. Sanitize the
array index before doing the array dereference.

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>

2018-05-05 08:37:27 +02:00

..

callchain.c

perf: Remove superfluous allocation error check

2018-04-17 09:47:40 -03:00

core.c

perf: Return proper values for user stack errors

2018-04-17 09:47:39 -03:00

hw_breakpoint.c

Merge branch 'perf/urgent' into perf/core

2018-03-29 16:03:48 +02:00

internal.h

perf: Make perf_callchain function static

2018-01-08 12:33:01 -03:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

ring_buffer.c

perf/core: Fix possible Spectre-v1 indexing for ->aux_pages[]

2018-05-05 08:37:27 +02:00

uprobes.c

tracing: Remove igrab() iput() call from uprobes.c

2018-04-26 14:50:56 -04:00