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CVE-2026-64330: 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: typec: tcpm: Validate SVID index in svdm_consume_modes() In svdm_consume_modes(), the SVID value is read from pmdata->svids using pmdata->svid_index as an array index without bounds validation: paltmode->svid = pmdata->svids[pmdata->svid_index]; If pmdata->svid_index is driven beyond SVID_DISCOVERY_MAX (16), it results in an out-of-bounds read of the pmdata->svids array. Because pd_mode_data is embedded inside struct tcpm_port, indexing past svids reads into adjacent fields. In particular: - At index 16, it reads the altmodes count. - At index 18 and beyond, it reads into altmode_desc[], which contains partner-supplied SVDM Discovery Modes VDOs. By injecting a chosen SVID into altmode_desc[0].vdo and driving svid_index to 20, the partner can force paltmode->svid to be loaded with an arbitrary, partner- chosen SVID, which is then registered via typec_partner_register_altmode(). Fix this by validating that pmdata->svid_index is non-negative and strictly less than pmdata->nsvids before accessing the pmdata->svids array inside svdm_consume_modes().

    Засегнати продукти

    • Linux Linux: 4ab8c18d4d67321cc7b660559de17511d4fc0237 преди 89ff289cbf5d3b659a2babc5ccaae4eaf7e7cf53; 4ab8c18d4d67321cc7b660559de17511d4fc0237 преди d638ec188e95fe60f4b01106ffd41958f8fb3c2c; 4ab8c18d4d67321cc7b660559de17511d4fc0237 преди f8163c414de8640f2ca82ce4dc93409d4cdc2fad; 4ab8c18d4d67321cc7b660559de17511d4fc0237 преди 012406f89abc52d1d5f07aa5653b519ebf6d2407; 4ab8c18d4d67321cc7b660559de17511d4fc0237 преди c6d2af3b217a525741c472f0ab45d7d274b8468f; 4ab8c18d4d67321cc7b660559de17511d4fc0237 преди 3e1b1ac47e8163627f159f30d80d51b914620dd4; 4ab8c18d4d67321cc7b660559de17511d4fc0237 преди 313ca06e7e224ca1dfadd5722fe71fb8bc276b8b; 4ab8c18d4d67321cc7b660559de17511d4fc0237 преди 7b681dd5fbf60b24a13c14661e5b7735759fb491
    • Linux Linux: 4.19; преди 4.19; 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

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    Първоизточници

    CVE-2026-64330: Linux | freedomonline.bg