git.maquefel.me Git - linux.git/commit

author	Kan Liang <kan.liang@linux.intel.com>
	Thu, 28 May 2020 15:19:29 +0000 (08:19 -0700)
committer	Peter Zijlstra <peterz@infradead.org>
	Mon, 15 Jun 2020 12:09:50 +0000 (14:09 +0200)
commit	f01719730bbe04b90ae60c7e9d2b6d3533308502
tree	ce4a492b4a9cf7963cfe13175ed83a66d5c5ca16	tree \| snapshot
parent	1b94d31de422399421422af0e63c9685e7485901	commit \| diff

perf/x86/intel/uncore: Validate MMIO address before accessing

An oops will be triggered, if perf tries to access an invalid address
which exceeds the mapped area.

Check the address before the actual access to MMIO sapce of an uncore
unit.

Suggested-by: David Laight <David.Laight@ACULAB.COM>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/1590679169-61823-3-git-send-email-kan.liang@linux.intel.com

arch/x86/events/intel/uncore.c		diff \| blob \| history
arch/x86/events/intel/uncore.h		diff \| blob \| history
arch/x86/events/intel/uncore_snbep.c		diff \| blob \| history