]> git.baikalelectronics.ru Git - kernel.git/commit
mm: untag user pointers in mmap/munmap/mremap/brk
authorCatalin Marinas <catalin.marinas@arm.com>
Wed, 25 Sep 2019 23:49:04 +0000 (16:49 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 26 Sep 2019 00:51:41 +0000 (17:51 -0700)
commitf710570c473bcf8466a01250c68c1f030ae64e4c
treed8a082c31da75c9792d3ec465a485028a7f1d797
parent99c7529a95b703316d871d1aedb7a68bf307c137
mm: untag user pointers in mmap/munmap/mremap/brk

There isn't a good reason to differentiate between the user address space
layout modification syscalls and the other memory permission/attributes
ones (e.g.  mprotect, madvise) w.r.t.  the tagged address ABI.  Untag the
user addresses on entry to these functions.

Link: http://lkml.kernel.org/r/20190821164730.47450-2-catalin.marinas@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Szabolcs Nagy <szabolcs.nagy@arm.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Dave P Martin <Dave.Martin@arm.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/mmap.c
mm/mremap.c