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authorAndrey Konovalov <andreyknvl@google.com>2021-02-25 17:20:38 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-26 09:41:03 -0800
commit7169487bc2a7c5732a6eeebc6dc3d1351d4a6350 (patch)
tree2b762eb2a1e2173967fc1db818522d0bd4873c8f /mm
parentc80a03664e154b7263af1c4dd53f42221d0c8283 (diff)
kasan: clarify that only first bug is reported in HW_TAGS
Hwardware tag-based KASAN only reports the first found bug. After that MTE tag checking gets disabled. Clarify this in comments and documentation. Link: https://lkml.kernel.org/r/00383ba88a47c3f8342d12263c24bdf95527b07d.1612546384.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Reviewed-by: Marco Elver <elver@google.com> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Branislav Rankov <Branislav.Rankov@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Evgenii Stepanov <eugenis@google.com> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Cc: Peter Collingbourne <pcc@google.com> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/kasan/hw_tags.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index b31aeef505dd..2aad21fda156 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -48,7 +48,7 @@ EXPORT_SYMBOL(kasan_flag_enabled);
/* Whether to collect alloc/free stack traces. */
DEFINE_STATIC_KEY_FALSE(kasan_flag_stacktrace);
-/* Whether panic or disable tag checking on fault. */
+/* Whether to panic or print a report and disable tag checking on fault. */
bool kasan_flag_panic __ro_after_init;
/* kasan=off/on */