7.5
CVSS 3.1
Няма данни
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Няма потвърждение
Атакува се
Няма данни
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: ksmbd: require source read access for duplicate extents FSCTL_DUPLICATE_EXTENTS_TO_FILE passes the source file directly to vfs_clone_file_range() or vfs_copy_file_range() without checking the SMB access mask granted to the source handle. A handle opened with attribute access can consequently be used to copy file contents into an attacker-readable destination. Require FILE_READ_DATA on the source handle before either VFS operation, matching other ksmbd data-copy paths.
Засегнати продукти
- Linux Linux: eb817368f50c1cbe1bd07044124aad7db6330e3a преди 2d2ab6983620c2d60ce7db72133984ca3873b929; eb817368f50c1cbe1bd07044124aad7db6330e3a преди 67bdad9cf01b25030e3bf00bbce6c309319d6663; eb817368f50c1cbe1bd07044124aad7db6330e3a преди b0d4d5cb846a1ddb7aaab9adfb5986e4540e6e5f; eb817368f50c1cbe1bd07044124aad7db6330e3a преди db231af842868268839f9f9619c68cb27830d8be; eb817368f50c1cbe1bd07044124aad7db6330e3a преди a10942af27832c2761d020863a46e79bebe0567d; eb817368f50c1cbe1bd07044124aad7db6330e3a преди cedff600f1642aa982178503552f0d007bc829c8
- Linux Linux: 5.15; преди 5.15; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.96 до 6.12.*; 6.18.39 до 6.18.*; 7.1.4 до 7.1.*; 7.2 до *
История
- 25 юли 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-64395
- https://nvd.nist.gov/vuln/detail/CVE-2026-64395
- https://git.kernel.org/stable/c/2d2ab6983620c2d60ce7db72133984ca3873b929
- https://git.kernel.org/stable/c/67bdad9cf01b25030e3bf00bbce6c309319d6663
- https://git.kernel.org/stable/c/b0d4d5cb846a1ddb7aaab9adfb5986e4540e6e5f
- https://git.kernel.org/stable/c/db231af842868268839f9f9619c68cb27830d8be
- https://git.kernel.org/stable/c/a10942af27832c2761d020863a46e79bebe0567d
- https://git.kernel.org/stable/c/cedff600f1642aa982178503552f0d007bc829c8