diff options
Diffstat (limited to 'mm/slub.c')
| -rw-r--r-- | mm/slub.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/mm/slub.c b/mm/slub.c index d6fe997c0577..a5f6c6d107e9 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -682,11 +682,21 @@ static void print_trailer(struct kmem_cache *s, struct page *page, u8 *p) dump_stack(); } +#ifdef CONFIG_SLUB_DEBUG_PANIC_ON +static void slab_panic(const char *cause) +{ + panic("%s\n", cause); +} +#else +static inline void slab_panic(const char *cause) {} +#endif + void object_err(struct kmem_cache *s, struct page *page, u8 *object, char *reason) { slab_bug(s, "%s", reason); print_trailer(s, page, object); + slab_panic(reason); } static void slab_err(struct kmem_cache *s, struct page *page, @@ -701,6 +711,7 @@ static void slab_err(struct kmem_cache *s, struct page *page, slab_bug(s, "%s", buf); print_page_info(page); dump_stack(); + slab_panic("slab error"); } static void init_object(struct kmem_cache *s, void *object, u8 val) @@ -722,6 +733,7 @@ static void init_object(struct kmem_cache *s, void *object, u8 val) static void restore_bytes(struct kmem_cache *s, char *message, u8 data, void *from, void *to) { + slab_panic("object poison overwritten"); slab_fix(s, "Restoring 0x%p-0x%p=0x%x\n", from, to - 1, data); memset(from, data, to - from); } @@ -1563,6 +1575,7 @@ static void __free_slab(struct kmem_cache *s, struct page *page) page_mapcount_reset(page); if (current->reclaim_state) current->reclaim_state->reclaimed_slab += pages; + kasan_alloc_pages(page, order); __free_kmem_pages(page, order); } @@ -3708,6 +3721,7 @@ void kfree(const void *x) if (unlikely(!PageSlab(page))) { BUG_ON(!PageCompound(page)); kfree_hook(x); + kasan_alloc_pages(page, compound_order(page)); __free_kmem_pages(page, compound_order(page)); return; } |