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CVE-2026-98169: Linux

7.1

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 след действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential OOB read in smb3_enum_snapshots() If snapshot_array_size is smaller than GMT_TOKEN_SIZE, smb3_enum_snapshots() sets ret_data_len to sizeof(struct smb_snapshot_array) without verifying the actual length of the server's reply. Because SMB2_ioctl() places no lower bound on the server-supplied OutputCount and allocates retbuf to exactly that length, a short reply results in ret_data_len exceeding the size of retbuf. The subsequent copy_to_user() then reads past the end of retbuf, leaking adjacent slab memory to userspace. The subsequent clamp check is ineffective as it only reduces ret_data_len. Fix this by rejecting replies shorter than sizeof(struct smb_snapshot_array) with -EIO. Note that the bound is set to the 12-byte struct size rather than the 16-byte MIN_SNAPSHOT_ARRAY_SIZE defined in MS-SMB2 3.3.5.15.1, because 12 bytes is exactly what copy_to_user() attempts to read.

    Засегнати продукти

    • Linux Linux: e02789a53d71334b067ad72eee5d4e88a0158083 преди 67ef1d6da00f4f39eb5fcebe7a44fe494b645059; e02789a53d71334b067ad72eee5d4e88a0158083 преди 5edf5b398d49b881c0df79d6e4f6df251236c533; e02789a53d71334b067ad72eee5d4e88a0158083 преди 15a221c734b9d044ab769e7e3606b2cab96fb65a; e02789a53d71334b067ad72eee5d4e88a0158083 преди 74995ee8305a7c4d76ee70d6acd996a75eda3c03; e02789a53d71334b067ad72eee5d4e88a0158083 преди 210f0f1f67817e7d2348b86b5115a9b85ef5c98b; e02789a53d71334b067ad72eee5d4e88a0158083 преди 1cdf0d304d820fb13bf0faf532c3459600f9ea43; e02789a53d71334b067ad72eee5d4e88a0158083 преди dbe452a905dfe2804647530a9ff3d7e3826ed04d; e02789a53d71334b067ad72eee5d4e88a0158083 преди 4775c3b7a597907e0b97556c7986fda238a377ae; a94703ff8e3647f8a9a3a92a468450299a7b77e9; 82a856f527334ffd69aae26e7dd9e03b19c4a520; 25b981bfe192fd208ba04c81f4aa30ffb5141660; 4.9.125 преди 4.10; 4.14.68 преди 4.15; 4.18.6 преди 4.19
    • Linux Linux: 4.19; преди 4.19; 5.10.273 до 5.10.*; 5.15.224 до 5.15.*; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.112 до 6.12.*; 6.18.54 до 6.18.*; 7.2.8 до 7.2.*; 7.3 до *

    История

    • 6 октомври 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-98169: Linux | freedomonline.bg