CVE-2026-74602
CVE CVE-2026-74602EUVD EUVD-2026-64539Published 2026-08-22T15:31:50.000ZLast changed 2026-08-23T12:47:43.000Z
What the advisory describes
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: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux f9b94daa542a8d2532f0930f01cd9aec2d19621b <3b3e0a6ee5bb3ac000f135beef26b2b7ed1a771a; patch: 6.12.105; f9b94daa542a8d2532f0930f01cd9aec2d19621b <7c620d89bae1a926ab7d626600285d3516c9f3c4; patch: 0; 6.8; patch: 7.1.9; f9b94daa542a8d2532f0930f01cd9aec2d19621b <6d014e44b68ddd43f71288d2a4dbb1a259869149; patch: 6.18.45; f9b94daa542a8d2532f0930f01cd9aec2d19621b <2e37f2bf111429fbfa4d985b12df3ba496ca70aa; patch: 7.2
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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