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-rw-r--r--mm/kfence/core.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/mm/kfence/core.c b/mm/kfence/core.c
index 9b2b5f56f4ae..11a954763be9 100644
--- a/mm/kfence/core.c
+++ b/mm/kfence/core.c
@@ -621,6 +621,16 @@ static bool __init kfence_init_pool_early(void)
* fails for the first page, and therefore expect addr==__kfence_pool in
* most failure cases.
*/
+ for (char *p = (char *)addr; p < __kfence_pool + KFENCE_POOL_SIZE; p += PAGE_SIZE) {
+ struct slab *slab = virt_to_slab(p);
+
+ if (!slab)
+ continue;
+#ifdef CONFIG_MEMCG
+ slab->memcg_data = 0;
+#endif
+ __folio_clear_slab(slab_folio(slab));
+ }
memblock_free_late(__pa(addr), KFENCE_POOL_SIZE - (addr - (unsigned long)__kfence_pool));
__kfence_pool = NULL;
return false;