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CVE-2025-68808: Linux

7.8

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, с обикновен потребителски вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: media: vidtv: initialize local pointers upon transfer of memory ownership vidtv_channel_si_init() creates a temporary list (program, service, event) and ownership of the memory itself is transferred to the PAT/SDT/EIT tables through vidtv_psi_pat_program_assign(), vidtv_psi_sdt_service_assign(), vidtv_psi_eit_event_assign(). The problem here is that the local pointer where the memory ownership transfer was completed is not initialized to NULL. This causes the vidtv_psi_pmt_create_sec_for_each_pat_entry() function to fail, and in the flow that jumps to free_eit, the memory that was freed by vidtv_psi_*_table_destroy() can be accessed again by vidtv_psi_*_event_destroy() due to the uninitialized local pointer, so it is freed once again. Therefore, to prevent use-after-free and double-free vulnerability, local pointers must be initialized to NULL when transferring memory ownership.

    Засегнати продукти

    • Linux Linux: 3be8037960bccd13052cfdeba8805ad785041d70 преди c342e294dac4988c8ada759b2f057246e48c5108; 3be8037960bccd13052cfdeba8805ad785041d70 преди 12ab6ebb37789b84073e83e4d9b14a5e0d133323; 3be8037960bccd13052cfdeba8805ad785041d70 преди 3caa18d35f1dabe85a3dd31bc387f391ac9f9b4e; 3be8037960bccd13052cfdeba8805ad785041d70 преди fb9bd6d8d314b748e946ed6555eb4a956ee8c4d8; 3be8037960bccd13052cfdeba8805ad785041d70 преди a69c7fd603bf5ad93177394fbd9711922ee81032; 3be8037960bccd13052cfdeba8805ad785041d70 преди 30f4d4e5224a9e44e9ceb3956489462319d804ce; 3be8037960bccd13052cfdeba8805ad785041d70 преди 98aabfe2d79f74613abc2b0b1cef08f97eaf5322
    • Linux Linux: 5.10; преди 5.10; 5.10.248 до 5.10.*; 5.15.198 до 5.15.*; 6.1.160 до 6.1.*; 6.6.120 до 6.6.*; 6.12.64 до 6.12.*; 6.18.3 до 6.18.*; от 6.19 нататък

    История

    • 13 януари 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2025-68808: Linux | freedomonline.bg