CVE-2026-74602 — ring-buffer: Initialise reader page order in rb_allocate_cpu_buffer()
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->o…
Published: 2026-08-22 · CVSS: Unscored
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).
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7