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CVE-2026-31660: 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: nfc: pn533: allocate rx skb before consuming bytes pn532_receive_buf() reports the number of accepted bytes to the serdev core. The current code consumes bytes into recv_skb and may already hand a complete frame to pn533_recv_frame() before allocating a fresh receive buffer. If that alloc_skb() fails, the callback returns 0 even though it has already consumed bytes, and it leaves recv_skb as NULL for the next receive callback. That breaks the receive_buf() accounting contract and can also lead to a NULL dereference on the next skb_put_u8(). Allocate the receive skb lazily before consuming the next byte instead. If allocation fails, return the number of bytes already accepted.

    Засегнати продукти

    • Linux Linux: c656aa4c27b17a8c70da223ed5ab42145800d6b5 преди 2ca64fb7e2d2ae14619dd204d4f2f0a601f421fb; c656aa4c27b17a8c70da223ed5ab42145800d6b5 преди 8b71299d587d9e4c830c18afb884c80ddb30ad28; c656aa4c27b17a8c70da223ed5ab42145800d6b5 преди 16649adc2e19509104245ea1f349b629d858f11f; c656aa4c27b17a8c70da223ed5ab42145800d6b5 преди 07cb6c72e66ba548679f22ac29ad588da8999279; c656aa4c27b17a8c70da223ed5ab42145800d6b5 преди a9495069b43b8634c1ae0042e888766c34f66637; c656aa4c27b17a8c70da223ed5ab42145800d6b5 преди 21ae2cda66a55c759607bbf1d23cbaa42019d2de; c656aa4c27b17a8c70da223ed5ab42145800d6b5 преди 7e37da42eda45d7859d9273fc7e225d8df458038; c656aa4c27b17a8c70da223ed5ab42145800d6b5 преди c71ba669b570c7b3f86ec875be222ea11dacb352
    • Linux Linux: 5.5; преди 5.5; 5.10.253 до 5.10.*; 5.15.203 до 5.15.*; 6.1.169 до 6.1.*; 6.6.135 до 6.6.*; 6.12.82 до 6.12.*; 6.18.23 до 6.18.*; 6.19.13 до 6.19.*; от 7.0 нататък

    История

    • 24 април 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-31660: Linux | freedomonline.bg