[PATCH 1/2] mm/zsmalloc.c: check encoded object value overflow for PAE
From: Sergey Senozhatsky <hidden>
Date: 2018-10-25 05:29:09
Also in:
linux-mm, lkml
On (10/24/18 22:27), Rafael David Tinoco wrote:
static unsigned long location_to_obj(struct page *page, unsigned int obj_idx)
{
- unsigned long obj;
+ unsigned long obj, pfn;
+
+ pfn = page_to_pfn(page);
+
+ if (unlikely(OBJ_OVERFLOW(pfn)))
+ BUG();The trend these days is to have less BUG/BUG_ON-s in the kernel. -ss