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CVE-2025-71266: 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: fs: ntfs3: check return value of indx_find to avoid infinite loop We found an infinite loop bug in the ntfs3 file system that can lead to a Denial-of-Service (DoS) condition. A malformed dentry in the ntfs3 filesystem can cause the kernel to hang during the lookup operations. By setting the HAS_SUB_NODE flag in an INDEX_ENTRY within a directory's INDEX_ALLOCATION block and manipulating the VCN pointer, an attacker can cause the indx_find() function to repeatedly read the same block, allocating 4 KB of memory each time. The kernel lacks VCN loop detection and depth limits, causing memory exhaustion and an OOM crash. This patch adds a return value check for fnd_push() to prevent a memory exhaustion vulnerability caused by infinite loops. When the index exceeds the size of the fnd->nodes array, fnd_push() returns -EINVAL. The indx_find() function checks this return value and stops processing, preventing further memory allocation.

    Засегнати продукти

    • Linux Linux: 82cae269cfa953032fbb8980a7d554d60fb00b17 преди 14c3188afbedfd5178bbabb8002487ea14b37b56; 82cae269cfa953032fbb8980a7d554d60fb00b17 преди 435d34719db0e130f6f0c621d67ed524cc1a7d10; 82cae269cfa953032fbb8980a7d554d60fb00b17 преди 68e32694be231c1cdb99b7637a657314e88e1a96; 82cae269cfa953032fbb8980a7d554d60fb00b17 преди 398e768d1accd1f5645492ab996005d7aa84a5b0; 82cae269cfa953032fbb8980a7d554d60fb00b17 преди b0ea441f44ce64fa514a415d4a9e6e2b06e7946c; 82cae269cfa953032fbb8980a7d554d60fb00b17 преди 0ad7a1be44479503dbe5c699759861ef5b8bd70c; 82cae269cfa953032fbb8980a7d554d60fb00b17 преди 1732053c8a6b360e2d5afb1b34fe9779398b072c
    • Linux Linux: 5.15; преди 5.15; 5.15.202 до 5.15.*; 6.1.165 до 6.1.*; 6.6.128 до 6.6.*; 6.12.75 до 6.12.*; 6.18.16 до 6.18.*; 6.19.6 до 6.19.*; от 7.0 нататък
    • Siemens: още 3 продукта, добавени от Siemens

      SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP, SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

    История

    • 18 март 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2025-71266: Linux | freedomonline.bg