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CVE-2026-31501: Linux

9.8

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, без вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: net: ti: icssg-prueth: fix use-after-free of CPPI descriptor in RX path cppi5_hdesc_get_psdata() returns a pointer into the CPPI descriptor. In both emac_rx_packet() and emac_rx_packet_zc(), the descriptor is freed via k3_cppi_desc_pool_free() before the psdata pointer is used by emac_rx_timestamp(), which dereferences psdata[0] and psdata[1]. This constitutes a use-after-free on every received packet that goes through the timestamp path. Defer the descriptor free until after all accesses through the psdata pointer are complete. For emac_rx_packet(), move the free into the requeue label so both early-exit and success paths free the descriptor after all accesses are done. For emac_rx_packet_zc(), move the free to the end of the loop body after emac_dispatch_skb_zc() (which calls emac_rx_timestamp()) has returned.

    Засегнати продукти

    • Linux Linux: 46eeb90f03e03d5e8f7f9f1f0eb0792104fc5f86 преди c516c2e06fe580b8d38de60cd407072a5de81506; 46eeb90f03e03d5e8f7f9f1f0eb0792104fc5f86 преди d5827316debcb677679bb014885d7be92c410e11; 46eeb90f03e03d5e8f7f9f1f0eb0792104fc5f86 преди eb8c426c9803beb171f89d15fea17505eb517714
    • Linux Linux: 6.15; преди 6.15; 6.18.57 до 6.18.*; 6.19.11 до 6.19.*; 7.0 до *

    История

    • 22 април 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-31501: Linux | freedomonline.bg