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CVE-2026-98167: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: smb: client: fix server->total_read for compound encrypted PDUs In receive_encrypted_standard(), server->total_read is left at the full decrypted frame size when walking sub-PDUs of a compound encrypted frame. As a result, cifs_handle_standard() passes this full size to smb2_check_message(), causing the PDU length guards to incorrectly validate the entire compound frame instead of the current sub-PDU. This allows truncated non-last sub-PDUs to bypass length validation, leading to out-of-bounds reads in smb2_get_data_area_len(). Fix this by setting server->total_read to the true length of the current sub-PDU: next_cmd for non-last sub-PDUs, and the remaining pdu_length for the last one.

    Засегнати продукти

    • Linux Linux: b24df3e30cbf48255db866720fb71f14bf9d2f39 преди 8703539d22fdbc13dd2db090ee199c3a427b8ea0; b24df3e30cbf48255db866720fb71f14bf9d2f39 преди e78fc1d240b27349b45a0f1c3e3c2c401d7e230d; b24df3e30cbf48255db866720fb71f14bf9d2f39 преди a46eb242e9eef3a3897d166748b23303c516e870; b24df3e30cbf48255db866720fb71f14bf9d2f39 преди ebb8a075fdc7af3d196a4f158a0e18dbc394c0e3; b24df3e30cbf48255db866720fb71f14bf9d2f39 преди 282b72f9a7ef31296c48366db4128882999cc048; b24df3e30cbf48255db866720fb71f14bf9d2f39 преди f73726b83e4756fdaa099e1bc1143293bd57ad79
    • Linux Linux: 4.19; преди 4.19; 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.*; от 7.3 нататък

    История

    • 6 октомври 2026 Публикувано

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    CVE-2026-98167: Linux | freedomonline.bg