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CVE-2026-46088: 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: ALSA: control: Validate buf_len before strnlen() in snd_ctl_elem_init_enum_names() snd_ctl_elem_init_enum_names() advances pointer p through the names buffer while decrementing buf_len. If buf_len reaches zero but items remain, the next iteration calls strnlen(p, 0). While strnlen(p, 0) returns 0 and would hit the existing name_len == 0 error path, CONFIG_FORTIFY_SOURCE's fortified strnlen() first checks maxlen against __builtin_dynamic_object_size(). When Clang loses track of p's object size inside the loop, this triggers a BRK exception panic before the return value is examined. Add a buf_len == 0 guard at the loop entry to prevent calling fortified strnlen() on an exhausted buffer. Found by kernel fuzz testing through Xiaomi Smartphone.

    Засегнати продукти

    • Linux Linux: 8d448162bda5ae3b5ecb26fe50c8fbbeae99faa4 преди 708f6ec9bcdf58bfd561409110baaf4fd3be4ea3; 8d448162bda5ae3b5ecb26fe50c8fbbeae99faa4 преди bfcbb4994da9e979c4bcfcf24aaaac69e457e48e; 8d448162bda5ae3b5ecb26fe50c8fbbeae99faa4 преди a470f7cabc4df72d9bd132f5719a8717292bb440; 8d448162bda5ae3b5ecb26fe50c8fbbeae99faa4 преди 1fbe46d2b72754d8bd580e13e59ccb5d3d0e8cb0; 8d448162bda5ae3b5ecb26fe50c8fbbeae99faa4 преди 8ba0214c3dd32b8ec652947e3f2bc5b8f6e6be9e; 8d448162bda5ae3b5ecb26fe50c8fbbeae99faa4 преди 654c818a69c21d2bea4e8fd9eae7da865df9a5c8; 8d448162bda5ae3b5ecb26fe50c8fbbeae99faa4 преди 82012fd3e78a14360fbc2f1a7491589896704f97; 8d448162bda5ae3b5ecb26fe50c8fbbeae99faa4 преди e0da8a8cac74f4b9f577979d131f0d2b88a84487
    • Linux Linux: 3.2; преди 3.2; 5.10.258 до 5.10.*; 5.15.209 до 5.15.*; 6.1.175 до 6.1.*; 6.6.140 до 6.6.*; 6.12.86 до 6.12.*; 6.18.27 до 6.18.*; 7.0.4 до 7.0.*; от 7.1 нататък
    • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem: всички версии

    История

    • 27 май 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-46088: Linux | freedomonline.bg