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CVE-2026-89615: Linux

8.4

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 локално, без особени условия, без вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: bound page_lcns[] index by the log record The copy_lcns loop and the redo shorten loop index page_lcns[] at j + i, where i runs up to the log record's lcns_follow. That count is checked only against the record's own length, not the target entry, so check_dp_table() (which validates the entry's lcns_follow) does not cover it: the copy_lcns entry may even be freshly allocated after that check, and find_dp() bounds j but not i. A crafted record thus overflows page_lcns[] of an otherwise valid entry. Add dp_range_ok() and reject, before each loop, any record whose run does not fit the entry. These are the only two page_lcns[] accesses indexed by the record rather than the entry, so together with the entry validation every access is now bounded. [[email protected]: original patch contained changes to the problem already handled, applied partly]

    Засегнати продукти

    • Linux Linux: b46acd6a6a627d876898e1c84d3f84902264b445 преди 31fdd11f75da9823500168cecb07aa45130915a3; b46acd6a6a627d876898e1c84d3f84902264b445 преди bb742d1030864c0fe140666f639428ba4e90b2ca; b46acd6a6a627d876898e1c84d3f84902264b445 преди 61ca8cbbf68f77f25b699ed4358bd232f94ed43b; b46acd6a6a627d876898e1c84d3f84902264b445 преди f4c1bc6d7331f344ffcea93c2a37badcbe15baa6; b46acd6a6a627d876898e1c84d3f84902264b445 преди 7ccb94901f38a062034b56b43c774050b113758f; b46acd6a6a627d876898e1c84d3f84902264b445 преди 1135ebc225996b3ac1a295652b19a0a706737a6c; b46acd6a6a627d876898e1c84d3f84902264b445 преди 6f7b9dbdc1b7520206abce0049bdd143eb536e75
    • Linux Linux: 5.15; преди 5.15; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.109 до 6.12.*; 6.18.50 до 6.18.*; 7.2.4 до 7.2.*; от 7.3 нататък

    История

    • 11 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-89615: Linux | freedomonline.bg