diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/kasan/generic.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/kasan/generic.c b/lib/kasan/generic.c index b33a6c1a6c..1eccacf2b4 100644 --- a/lib/kasan/generic.c +++ b/lib/kasan/generic.c @@ -22,6 +22,7 @@ unsigned long kasan_shadow_start; unsigned long kasan_shadow_base; +unsigned long kasan_shadowed_end; /* * All functions below always inlined so compiler could @@ -160,6 +161,9 @@ static __always_inline bool check_memory_region_inline(unsigned long addr, if (addr < kasan_shadow_start) return true; + if (addr > kasan_shadowed_end) + return true; + if (unlikely(size == 0)) return true; @@ -180,6 +184,7 @@ void kasan_init(unsigned long membase, unsigned long memsize, { kasan_shadow_start = membase; kasan_shadow_base = shadow_base; + kasan_shadowed_end = membase + memsize - 1; kasan_unpoison_shadow((void *)membase, memsize); kasan_initialized = true; |