CVE-2026-43210: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: tracing: ring-buffer: Fix to check event length before using Check the event length before adding it for accessing next index in rb_read_data_buffer(). Since this function is used for validating possibly broken ring buffers, the length of the event could be broken. In that case, the new event (e + len) can point a wrong address. To avoid invalid memory access at boot, check whether the length of each event is in the possible range before using it.

Засегнати продукти

• Linux Linux: 5f3b6e839f3ceb8d6ef02231ba9b5aca71b8bf55 преди b4700c089a10f89de3a5149d57f8a58306458982; 5f3b6e839f3ceb8d6ef02231ba9b5aca71b8bf55 преди 5026010110a5ad2268d8c23e1e286ab7c736f7ac; 5f3b6e839f3ceb8d6ef02231ba9b5aca71b8bf55 преди 9eb80e54494ef1efef8a64bec4ffa672c9cf411e; 5f3b6e839f3ceb8d6ef02231ba9b5aca71b8bf55 преди 912b0ee248c529a4f45d1e7f568dc1adddbf2a4a
• Linux Linux: 6.12; преди 6.12; 6.12.75 до 6.12.*; 6.18.16 до 6.18.*; 6.19.6 до 6.19.*; от 7.0 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-2026-43210
• https://nvd.nist.gov/vuln/detail/CVE-2026-43210
• https://git.kernel.org/stable/c/b4700c089a10f89de3a5149d57f8a58306458982
• https://git.kernel.org/stable/c/5026010110a5ad2268d8c23e1e286ab7c736f7ac
• https://git.kernel.org/stable/c/9eb80e54494ef1efef8a64bec4ffa672c9cf411e
• https://git.kernel.org/stable/c/912b0ee248c529a4f45d1e7f568dc1adddbf2a4a