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CVE-2026-64487: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: ALSA: caiaq: fix out-of-bounds read in the Traktor Kontrol S4 input parser snd_usb_caiaq_tks4_dispatch() decodes the Traktor Kontrol S4 input stream in fixed 16-byte (TKS4_MSGBLOCK_SIZE) message blocks. On every iteration it advances buf and subtracts the block size while looping on "while (len)". len is urb->actual_length. That value is supplied by the device and is not guaranteed to be a multiple of 16. When a final short block leaves len between 1 and 15, the loop runs once more, reads up to buf[15], and then does "len -= TKS4_MSGBLOCK_SIZE". As len is unsigned this underflows to a huge value. The loop then keeps iterating and walking buf far past the end of the 512-byte ep4_in_buf, reading out of bounds until a bogus block id happens to be hit. Iterate only while a full message block is available. This stops the unsigned underflow and silently drops any trailing partial block, which carries no complete control value anyway. The sibling endpoint-4 parsers are not affected. The Traktor Kontrol X1 and Maschine arms in snd_usb_caiaq_ep4_reply_dispatch() floor urb->actual_length before dispatching.

    Засегнати продукти

    • Linux Linux: 15c5ab607045e278ebf4d2ca4aea2250617d50ca преди de5f9edc705497b1b2c6b173b22f283486d2fd91; 15c5ab607045e278ebf4d2ca4aea2250617d50ca преди 70d6d4cfa4ad09688aed2ec8a0cfa72c31f60334; 15c5ab607045e278ebf4d2ca4aea2250617d50ca преди 884f575cc6acb136eb4a161d925147f85b59c27e; 15c5ab607045e278ebf4d2ca4aea2250617d50ca преди 05df59b9a61f7ca66548df079d306c41da23845d; 15c5ab607045e278ebf4d2ca4aea2250617d50ca преди 3cad86197c7bf8b45bb1d8adc1099d0913e80469; 15c5ab607045e278ebf4d2ca4aea2250617d50ca преди a5fd3122283bf75c04f6414bf610100beb0565b0; 15c5ab607045e278ebf4d2ca4aea2250617d50ca преди 0680413f2f10aab43878dd3db711a6a9e45bab7c; 15c5ab607045e278ebf4d2ca4aea2250617d50ca преди f7f3f9fd81e7adbaa12c2e62ee07f0e094a543fd
    • Linux Linux: 2.6.37; преди 2.6.37; 5.10.261 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.96 до 6.12.*; 6.18.39 до 6.18.*; 7.1.4 до 7.1.*; от 7.2 нататък

    История

    • 25 юли 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-64487: Linux | freedomonline.bg