CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: jbd2: fix integer underflow in jbd2_journal_initialize_fast_commit() jbd2_journal_initialize_fast_commit() validates journal capacity by checking (journal->j_last - num_fc_blks < JBD2_MIN_JOURNAL_BLOCKS). Both j_last and num_fc_blks are unsigned, so when num_fc_blks exceeds j_last the subtraction wraps to a large value, bypassing the bounds check. The resulting underflow corrupts j_last, j_fc_first, and j_free, leading to journal abort. Fix by checking num_fc_blks against j_last before the subtraction, returning -EFSCORRUPTED.
Засегнати продукти
- Linux Linux: 6866d7b3f2bb4f011041ba54c98b1584497fe2fd преди aa90f00932bf572d6ef284c977c2a60b39c13bd6; 6866d7b3f2bb4f011041ba54c98b1584497fe2fd преди e144ad0250f77e23e28949587b8b57e40dc3b512; 6866d7b3f2bb4f011041ba54c98b1584497fe2fd преди 4b48dcb88bb9117e3d3f051175a9a8b7cff7f8b6; 6866d7b3f2bb4f011041ba54c98b1584497fe2fd преди fb9b49618ed7296ebfad62a3835da8945f727001; 6866d7b3f2bb4f011041ba54c98b1584497fe2fd преди 4450dcaadf7d4aae8b6e4223b5d6ee4eb77097a9; 6866d7b3f2bb4f011041ba54c98b1584497fe2fd преди 78955fdce8ff654e6d33a2fa90882a1e7eb26330; 6866d7b3f2bb4f011041ba54c98b1584497fe2fd преди a58fc10adf503969fec2007b5afe8987258046c4; 6866d7b3f2bb4f011041ba54c98b1584497fe2fd преди 289a2ca0c9b7eae74f93fc213b0b971669b8683d
- Linux Linux: 5.10; преди 5.10; 5.10.266 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък
История
- 15 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-72225
- https://nvd.nist.gov/vuln/detail/CVE-2026-72225
- https://git.kernel.org/stable/c/aa90f00932bf572d6ef284c977c2a60b39c13bd6
- https://git.kernel.org/stable/c/e144ad0250f77e23e28949587b8b57e40dc3b512
- https://git.kernel.org/stable/c/4b48dcb88bb9117e3d3f051175a9a8b7cff7f8b6
- https://git.kernel.org/stable/c/fb9b49618ed7296ebfad62a3835da8945f727001
- https://git.kernel.org/stable/c/4450dcaadf7d4aae8b6e4223b5d6ee4eb77097a9
- https://git.kernel.org/stable/c/78955fdce8ff654e6d33a2fa90882a1e7eb26330
- https://git.kernel.org/stable/c/a58fc10adf503969fec2007b5afe8987258046c4
- https://git.kernel.org/stable/c/289a2ca0c9b7eae74f93fc213b0b971669b8683d