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: ocfs2: reject FITRIM ranges shorter than a cluster ocfs2_trim_mainbm() trims the global bitmap in cluster units, but its too-short range validation only checks sb->s_blocksize. On filesystems with a cluster size larger than the block size, a FITRIM range that is at least one block but shorter than one cluster is accepted and shifted down to len == 0. The later start + len - 1 and len -= ... arithmetic then underflows and can drive trimming past the requested range. Reject ranges shorter than s_clustersize instead. That preserves the existing -EINVAL behavior for requests that cannot discard even one allocation unit and keeps zero-cluster trims out of the group walk.
Засегнати продукти
- Linux Linux: aa89762c54800208d5afdcd8e6bf124818f17fe0 преди d903d59c0315f59bdf0214b4f13d71c9feb2c45c; aa89762c54800208d5afdcd8e6bf124818f17fe0 преди 441abb77222f155e8d931dbabb465466db01cfd7; aa89762c54800208d5afdcd8e6bf124818f17fe0 преди e652d0f5108e447b22da4249bcd23dd1b63c73dd; aa89762c54800208d5afdcd8e6bf124818f17fe0 преди 346314bb0cc2fc52b50b73d6ecc62e0217455c2e; aa89762c54800208d5afdcd8e6bf124818f17fe0 преди 06c0a0431b9856506fcd9b2c1b0c6136567d756d; aa89762c54800208d5afdcd8e6bf124818f17fe0 преди 3fa7139b5f42731a61f78c42433adae13f9adc21; aa89762c54800208d5afdcd8e6bf124818f17fe0 преди 2c13e02592b918be7725ab5965e01ef4e46c4b57; aa89762c54800208d5afdcd8e6bf124818f17fe0 преди ca1afd88f5eaaff9168e1466e5401385edf59543
- Linux Linux: 3.14; преди 3.14; 5.10.261 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.*; 7.2 до *
История
- 15 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-74349
- https://nvd.nist.gov/vuln/detail/CVE-2026-74349
- https://git.kernel.org/stable/c/d903d59c0315f59bdf0214b4f13d71c9feb2c45c
- https://git.kernel.org/stable/c/441abb77222f155e8d931dbabb465466db01cfd7
- https://git.kernel.org/stable/c/e652d0f5108e447b22da4249bcd23dd1b63c73dd
- https://git.kernel.org/stable/c/346314bb0cc2fc52b50b73d6ecc62e0217455c2e
- https://git.kernel.org/stable/c/06c0a0431b9856506fcd9b2c1b0c6136567d756d
- https://git.kernel.org/stable/c/3fa7139b5f42731a61f78c42433adae13f9adc21
- https://git.kernel.org/stable/c/2c13e02592b918be7725ab5965e01ef4e46c4b57
- https://git.kernel.org/stable/c/ca1afd88f5eaaff9168e1466e5401385edf59543