Към съдържанието
Търсене

CVE-2026-31433: Linux

8.8

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 по мрежата, 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: ksmbd: fix potencial OOB in get_file_all_info() for compound requests When a compound request consists of QUERY_DIRECTORY + QUERY_INFO (FILE_ALL_INFORMATION) and the first command consumes nearly the entire max_trans_size, get_file_all_info() would blindly call smbConvertToUTF16() with PATH_MAX, causing out-of-bounds write beyond the response buffer. In get_file_all_info(), there was a missing validation check for the client-provided OutputBufferLength before copying the filename into FileName field of the smb2_file_all_info structure. If the filename length exceeds the available buffer space, it could lead to potential buffer overflows or memory corruption during smbConvertToUTF16 conversion. This calculating the actual free buffer size using smb2_calc_max_out_buf_len() and returning -EINVAL if the buffer is insufficient and updating smbConvertToUTF16 to use the actual filename length (clamped by PATH_MAX) to ensure a safe copy operation.

    Засегнати продукти

    • Linux Linux: f2283680a80571ca82d710bc6ecd8f8beac67d63 преди 3a852f9d1c981fb14f6bf4e24999e0ea8088a7d7; 9f297df20d93411c0b4ddad7f88ba04a7cd36e77 преди 4cca3eff2099b18672934a39cee70aed835d652c; e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d преди 358cdaa1f7fbf2712cb4c5f6b59cb9a5c673c5fe; e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d преди 7aec5a769d2356cbf344d85bcfd36de592ac96a5; e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d преди b0cd9725fe2bcc9f37d096b132318a9060373f5d; e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d преди 9d7032851d6f5adbe2739601ca456c0ad3b422f0; e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d преди beef2634f81f1c086208191f7228bce1d366493d; 5.15.145 преди 5.15.203; 6.1.71 преди 6.1.168
    • Linux Linux: 6.6; преди 6.6; 5.15.203 до 5.15.*; 6.1.168 до 6.1.*; 6.6.131 до 6.6.*; 6.12.80 до 6.12.*; 6.18.21 до 6.18.*; 6.19.11 до 6.19.*; от 7.0 нататък

    История

    • 22 април 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-31433: Linux | freedomonline.bg