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CVE-2026-63902: 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: USB: serial: cypress_m8: validate interrupt packet headers cypress_read_int_callback() parses the interrupt-in buffer according to the selected Cypress packet format. Format 1 has a two-byte status/count header and format 2 has a one-byte combined status/count header. The usb-serial core sizes the interrupt-in buffer from the endpoint descriptor's wMaxPacketSize, and successful interrupt transfers can complete short when URB_SHORT_NOT_OK is not set. Check that the completed packet contains the selected header before reading it. Malformed short reports are ignored and the interrupt URB is resubmitted through the existing retry path, preventing out-of-bounds header-byte reads. KASAN report as below: KASAN slab-out-of-bounds in cypress_read_int_callback+0x240/0x7f0 Read of size 1 Call trace: cypress_read_int_callback() (drivers/usb/serial/cypress_m8.c:1009) __usb_hcd_giveback_urb() dummy_timer() [ johan: use constants in header length sanity checks ]

    Засегнати продукти

    • Linux Linux: 3416eaa1f8f8d516b77de514e14cf8da256d28fb преди fcef31a5a85ccf3c313449a866ec6ed7e4132425; 3416eaa1f8f8d516b77de514e14cf8da256d28fb преди aaa66708bfb1dca2acd219d1c1582f9f6d5492cb; 3416eaa1f8f8d516b77de514e14cf8da256d28fb преди 44f9bab8df7750a1e2a4d6cc22d7c9c2dc096aed; 3416eaa1f8f8d516b77de514e14cf8da256d28fb преди be50533fe7068e86eb7adb81988e6d6a3f6dfe53; 3416eaa1f8f8d516b77de514e14cf8da256d28fb преди 90664556916de22467097d4c8ceb716d597a5c32; 3416eaa1f8f8d516b77de514e14cf8da256d28fb преди ae03453f2c809ca3cf73753269fa6184dea7160f; 3416eaa1f8f8d516b77de514e14cf8da256d28fb преди 4a4cb0021ebe1fcadb52e04d19ed8d71470a530b; 3416eaa1f8f8d516b77de514e14cf8da256d28fb преди 9f9bfc80c67f35a275820da7e83a35dface08281
    • Linux Linux: 2.6.26; преди 2.6.26; 5.10.259 до 5.10.*; 5.15.210 до 5.15.*; 6.1.176 до 6.1.*; 6.6.143 до 6.6.*; 6.12.93 до 6.12.*; 6.18.35 до 6.18.*; 7.0.12 до 7.0.*; от 7.1 нататък

    История

    • 19 юли 2026 Публикувано

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    CVE-2026-63902: Linux | freedomonline.bg