CVE-2026-46308: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: pmdomain: mediatek: fix use-after-free in scpsys_get_bus_protection_legacy() In scpsys_get_bus_protection_legacy(), of_find_node_with_property() returns a device node with its reference count incremented. The function then calls of_node_put(node) before checking whether syscon_regmap_lookup_by_phandle() returns an error. If an error occurs, dev_err_probe() dereferences the node pointer to print diagnostic information, but the node memory may have already been freed due to the earlier of_node_put(), leading to a use-after-free vulnerability. Fix this by moving the of_node_put() call after the error check, ensuring the node is still valid when accessed in the error path.

Засегнати продукти

• Linux Linux: c29345fa5f66bea0790cf2219f57b974d4fc177b преди cb27e43c0511e9e1ca8818d231656070b11c18cf; c29345fa5f66bea0790cf2219f57b974d4fc177b преди 38d8410021b55d226847b2ac8d189d89fe5a8866; c29345fa5f66bea0790cf2219f57b974d4fc177b преди ec1fcddb3117d9452210e838fd37389ee61e10e8
• Linux Linux: 6.18; преди 6.18; 6.18.30 до 6.18.*; 7.0.7 до 7.0.*; от 7.1 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-46308
• https://nvd.nist.gov/vuln/detail/CVE-2026-46308
• https://git.kernel.org/stable/c/cb27e43c0511e9e1ca8818d231656070b11c18cf
• https://git.kernel.org/stable/c/38d8410021b55d226847b2ac8d189d89fe5a8866
• https://git.kernel.org/stable/c/ec1fcddb3117d9452210e838fd37389ee61e10e8