CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, с обикновен потребителски вход и без действие от потребителя.
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix out-of-bounds write in ocfs2_remove_refcount_extent [BUG] Unlinking a refcounted file whose refcount tree has leaf blocks triggers a fortify panic due to an out-of-bounds write. [CAUSE] When the last leaf block is removed from a refcount tree, ocfs2_remove_refcount_extent() converts the root back to leaf mode with a bulk memset on &rb->rf_records. rf_records sits in an anonymous union with rf_list. rf_list.l_tree_depth aliases rf_records.rl_count, and is 0 for a single-level tree. With rl_count equal to 0, the memset writes past the 16-byte declared size of rf_records, which the fortify checker catches. [FIX] Replace the bulk memset on &rb->rf_records with a correctly-bounded memset on rl_recs[] alone, after setting rl_count to the correct value.
Засегнати продукти
- Linux Linux: 2f26f58df041bbcf692730ff4d8ab0f250d9670d преди f5255516ec7add3a6d5d37853ad5a9a9ddb14305; 2f26f58df041bbcf692730ff4d8ab0f250d9670d преди 1ec3cca2d8b6b9ff6584ca626d4c8918bbf48d44
- Linux Linux: 6.19; преди 6.19; 7.1.5 до 7.1.*; 7.2 до *
История
- 28 август 2026 Публикувано