CVE-2026-74602: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Initialise reader page order in rb_allocate_cpu_buffer() In rb_allocate_cpu_buffer(), bpage->order was omitted, leaving it as 0. This is an issue for a ring-buffer with subbufs bigger than PAGE_SIZE if when freed: free_buffer_page() relies on this value. Align the value with the actual allocation size (buffer::subbuf_order).

Засегнати продукти

• Linux Linux: f9b94daa542a8d2532f0930f01cd9aec2d19621b преди 7c620d89bae1a926ab7d626600285d3516c9f3c4; f9b94daa542a8d2532f0930f01cd9aec2d19621b преди 2e37f2bf111429fbfa4d985b12df3ba496ca70aa; f9b94daa542a8d2532f0930f01cd9aec2d19621b преди 3b3e0a6ee5bb3ac000f135beef26b2b7ed1a771a; f9b94daa542a8d2532f0930f01cd9aec2d19621b преди 6d014e44b68ddd43f71288d2a4dbb1a259869149
• Linux Linux: 6.8; преди 6.8; 6.12.105 до 6.12.*; 6.18.45 до 6.18.*; 7.1.9 до 7.1.*; от 7.2 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-2026-74602
• https://nvd.nist.gov/vuln/detail/CVE-2026-74602
• https://git.kernel.org/stable/c/7c620d89bae1a926ab7d626600285d3516c9f3c4
• https://git.kernel.org/stable/c/2e37f2bf111429fbfa4d985b12df3ba496ca70aa
• https://git.kernel.org/stable/c/3b3e0a6ee5bb3ac000f135beef26b2b7ed1a771a
• https://git.kernel.org/stable/c/6d014e44b68ddd43f71288d2a4dbb1a259869149