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CVE-2026-89552: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: params: fix charp corruption on allocation failure param_set_charp() stores charp parameters in allocated memory after slab is available, and releases the previous value when the parameter is updated. The previous value is released before the replacement allocation succeeds. If kmalloc_parameter() fails, the setter returns -ENOMEM with the parameter left as NULL. Failing zswap's compressor update before zswap is initialized can later trigger: BUG: kernel NULL pointer dereference, address: 0000000000000000 RIP: 0010:strcmp+0x10/0x30 Call Trace: zswap_setup+0x3b1/0x490 zswap_enabled_param_set+0x5b/0xa0 param_attr_store+0x93/0xe0 module_attr_store+0x1c/0x30 kernfs_fop_write_iter+0x116/0x1f0 Allocate and copy the replacement first, then replace the parameter value only after allocation succeeds.

    Засегнати продукти

    • Linux Linux: e180a6b7759a99a28cbcce3547c4c80822cb6c2a преди 72835d539ed3eb4c4b85b85a3f3976c7bdc70b91; e180a6b7759a99a28cbcce3547c4c80822cb6c2a преди c7cc1edf3c0de948abcb3e4a44ee86a82403ce2f; e180a6b7759a99a28cbcce3547c4c80822cb6c2a преди 32c1f305cfad192cd98468140beedeffe4792f53; e180a6b7759a99a28cbcce3547c4c80822cb6c2a преди 31b41ea8383d51992d6b0dfe3a99da1dec8ce1c1; e180a6b7759a99a28cbcce3547c4c80822cb6c2a преди 614f873268c5b172804c9af6639bd17b7e1e2359; e180a6b7759a99a28cbcce3547c4c80822cb6c2a преди 704ecd010d4a9b33160e40b74eb402f6b86a18e0; e180a6b7759a99a28cbcce3547c4c80822cb6c2a преди 0d8e2404925a0607ffec79a53170715a46936896; e180a6b7759a99a28cbcce3547c4c80822cb6c2a преди 3dfaae04243cde460d82dfc2a7dd0bb6664d20ae
    • Linux Linux: 2.6.30; преди 2.6.30; 5.10.273 до 5.10.*; 5.15.224 до 5.15.*; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.109 до 6.12.*; 6.18.50 до 6.18.*; 7.2.4 до 7.2.*; от 7.3 нататък

    История

    • 11 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-89552: Linux | freedomonline.bg