linux/mm/kasan
Andrey Konovalov 76bc99e81a kasan: fix HW_TAGS boot parameters
The initially proposed KASAN command line parameters are redundant.

This change drops the complex "kasan.mode=off/prod/full" parameter and
adds a simpler kill switch "kasan=off/on" instead.  The new parameter
together with the already existing ones provides a cleaner way to
express the same set of features.

The full set of parameters with this change:

  kasan=off/on             - whether KASAN is enabled
  kasan.fault=report/panic - whether to only print a report or also panic
  kasan.stacktrace=off/on  - whether to collect alloc/free stack traces

Default values:

  kasan=on
  kasan.fault=report
  kasan.stacktrace=on  (if CONFIG_DEBUG_KERNEL=y)
  kasan.stacktrace=off (otherwise)

Link: https://linux-review.googlesource.com/id/Ib3694ed90b1e8ccac6cf77dfd301847af4aba7b8
Link: https://lkml.kernel.org/r/4e9c4a4bdcadc168317deb2419144582a9be6e61.1610736745.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-01-24 10:34:52 -08:00
..
Makefile kasan, arm64: implement HW_TAGS runtime 2020-12-22 12:55:08 -08:00
common.c kasan, mm: allow cache merging with no metadata 2020-12-22 12:55:09 -08:00
generic.c kasan: fix null pointer dereference in kasan_record_aux_stack 2020-12-29 15:36:49 -08:00
hw_tags.c kasan: fix HW_TAGS boot parameters 2021-01-24 10:34:52 -08:00
init.c kasan: fix incorrect arguments passing in kasan_add_zero_shadow 2021-01-24 10:34:52 -08:00
kasan.h kasan: sanitize objects when metadata doesn't fit 2020-12-22 12:55:09 -08:00
quarantine.c kasan: sanitize objects when metadata doesn't fit 2020-12-22 12:55:09 -08:00
report.c kasan: sanitize objects when metadata doesn't fit 2020-12-22 12:55:09 -08:00
report_generic.c kasan: separate metadata_fetch_row for each mode 2020-12-22 12:55:07 -08:00
report_hw_tags.c kasan: inline kasan_reset_tag for tag-based modes 2020-12-22 12:55:08 -08:00
report_sw_tags.c kasan: sanitize objects when metadata doesn't fit 2020-12-22 12:55:09 -08:00
shadow.c kasan: don't round_up too much 2020-12-22 12:55:09 -08:00
sw_tags.c kasan: sanitize objects when metadata doesn't fit 2020-12-22 12:55:09 -08:00