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CVE-2026-46023: Linux

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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: dm mirror: fix integer overflow in create_dirty_log() The argument count calculation in create_dirty_log() performs `*args_used = 2 + param_count` before validating against argc. When a user provides a param_count close to UINT_MAX via the device mapper table string, this unsigned addition wraps around to a small value, causing the subsequent `argc < *args_used` check to be bypassed. The overflowed param_count is then passed as argc to dm_dirty_log_create(), where it can cause out-of-bounds reads on the argv array. Fix by comparing param_count against argc - 2 before performing the addition, following the same pattern used by parse_features() in the same file. Since argc >= 2 is already guaranteed, the subtraction is safe.

    Засегнати продукти

    • Linux Linux: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди e5e0ae3237584ebef510366c4cb3d5cc7c22b610; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 249c831183fb806c8e3b14c7c4c1d2fb68cf37fb; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди ae59b3025609d5a0a39cf5b2b94e2467f6231573; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 35f6b3281efd44d19110574663bc17a610bc73b9; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 47dad9eea75d33212d3d2cea10e7ed6a1bfc0713; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 87c99a50e0fdc68a5b9b52a94d49452cd3ff02ca; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 17a08791d428885d00e510864283a7b839792368; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 4c788c6f921b22f9b6c3f316c4a071c05683e7de
    • Linux Linux: 2.6.12; преди 2.6.12; 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-2026-46023: Linux | freedomonline.bg