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CVE-2026-72330: Linux

7.5

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 без действие от потребителя.

  • Експлоатация: няма данни за експлоатация
  • Атаката може да се автоматизира

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: net/tls: Consume empty data records in tls_sw_read_sock() A peer may send a zero-length TLS application_data record; TLS 1.3 explicitly permits these as a traffic-analysis countermeasure (RFC 8446, Section 5.1). After decryption such a record has full_len == 0. tls_sw_read_sock() hands it to the read_actor, which has no payload to consume and returns zero. The loop treats a zero return as backpressure (used <= 0), requeues the skb at the head of rx_list, and stops. rx_list is serviced head-first on the next call, so the empty record is dequeued, fails the same way, and is requeued again; every later record on the connection is blocked behind it. tls_sw_recvmsg() does not stall on this: a zero-length data record copies nothing and falls through to consume_skb(). Mirror that in the read_sock() path by recognizing an empty data record before the actor runs, consuming it, and continuing.

Засегнати продукти

  • Linux Linux: 662fbcec32f4af6bdcf5b4006b792ebe9543d945 преди 0867b0f2513ebc1c475af9898c97f4772a68d964; 662fbcec32f4af6bdcf5b4006b792ebe9543d945 преди c6b440cf766a557b08d25f1b571b3d57d039686e; 662fbcec32f4af6bdcf5b4006b792ebe9543d945 преди e8a4c9fc437b16aef38f86ce3275677e36924259; 662fbcec32f4af6bdcf5b4006b792ebe9543d945 преди ebc295ce343600c2d60c1e1e0c5d192080217457; 662fbcec32f4af6bdcf5b4006b792ebe9543d945 преди 3be28e2c9cd0230cb51fd4967df095273afd3848
  • Linux Linux: 6.6; преди 6.6; 6.6.145 до 6.6.*; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък

История

  • 15 август 2026 Публикувано

Други уязвимости в Linux Linux

Първоизточници

CVE-2026-72330: Linux | freedomonline.bg