Commit 5547fec7 authored by Dan Carpenter's avatar Dan Carpenter Committed by Artem Bityutskiy

UBI: fix some use after free bugs

Move the kmem_cache_free() calls down a couple lines.
Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
parent 38dbfb59
...@@ -463,8 +463,8 @@ static int scan_pool(struct ubi_device *ubi, struct ubi_attach_info *ai, ...@@ -463,8 +463,8 @@ static int scan_pool(struct ubi_device *ubi, struct ubi_attach_info *ai,
} }
} }
if (found_orphan) { if (found_orphan) {
kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
list_del(&tmp_aeb->u.list); list_del(&tmp_aeb->u.list);
kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
} }
new_aeb = kmem_cache_alloc(ai->aeb_slab_cache, new_aeb = kmem_cache_alloc(ai->aeb_slab_cache,
...@@ -846,16 +846,16 @@ static int ubi_attach_fastmap(struct ubi_device *ubi, ...@@ -846,16 +846,16 @@ static int ubi_attach_fastmap(struct ubi_device *ubi,
ret = UBI_BAD_FASTMAP; ret = UBI_BAD_FASTMAP;
fail: fail:
list_for_each_entry_safe(tmp_aeb, _tmp_aeb, &used, u.list) { list_for_each_entry_safe(tmp_aeb, _tmp_aeb, &used, u.list) {
kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
list_del(&tmp_aeb->u.list); list_del(&tmp_aeb->u.list);
kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
} }
list_for_each_entry_safe(tmp_aeb, _tmp_aeb, &eba_orphans, u.list) { list_for_each_entry_safe(tmp_aeb, _tmp_aeb, &eba_orphans, u.list) {
kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
list_del(&tmp_aeb->u.list); list_del(&tmp_aeb->u.list);
kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
} }
list_for_each_entry_safe(tmp_aeb, _tmp_aeb, &free, u.list) { list_for_each_entry_safe(tmp_aeb, _tmp_aeb, &free, u.list) {
kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
list_del(&tmp_aeb->u.list); list_del(&tmp_aeb->u.list);
kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
} }
return ret; return ret;
......
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