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CVE-2026-98272: 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: net: mvpp2: prevent buffer overflow in page_pool allocation The per‑processor buffering scheme is supported only if the number of pools (nrxqs * 2) does not exceed MVPP2_BM_MAX_POOLS (8). This is already checked in mvpp2_probe() during the initial activation of percpu_pools. However, mvpp2_change_mtu() may later call mvpp2_bm_switch_buffers(priv, true) without this check, which can lead to an out-of-bounds access in the priv->page_pool array in mvpp2_bm_init(). The array is sized to hold MVPP2_PORT_MAX_RXQ entries, and mvpp2_get_nrxqs() may return exactly that value. The per-CPU scheme then doubles it to nrxqs * 2, exceeding the array bounds. Check that the hardware version is MVPP22 or newer and that the number of pools (nrxqs * 2) does not exceed MVPP2_BM_MAX_POOLS before switching to per-CPU mode. Found by Linux Verification Center (linuxtesting.org) with SVACE.

    Засегнати продукти

    • Linux Linux: 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f преди 5cefdb7acfc646fbded59ae77dfe0aac4c9e4a3c; 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f преди 4ac1d5adc4f4dbafbfd270b55cc6d8bf9849d545; 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f преди dfd46b5584a5881b131008767950e1ab82713c8c; 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f преди 6569fd85b0ef9a8a6f20b7eb868420b8c7c0c2a0; 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f преди e7f30dcfa6c64033bf9137362517bd248e5be384; 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f преди f0e7d62c1eb984dd204095118973c59604144cd8; 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f преди 1734c3fc0066e228ce1c11e434b7c2527f0a949a; 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f преди 14cb1e7702e5cb3c58888f6aed498381a73927d2
    • Linux Linux: 5.4; преди 5.4; 5.10.271 до 5.10.*; 5.15.222 до 5.15.*; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.112 до 6.12.*; 6.18.54 до 6.18.*; 7.2.8 до 7.2.*; от 7.3 нататък

    История

    • 6 октомври 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-98272: Linux | freedomonline.bg