CVE-2026-74634
CVE CVE-2026-74634EUVD EUVD-2026-64571Published 2026-08-22T15:32:14.000ZLast changed 2026-08-25T05:40:58.000ZCVSS 7.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Prevent subbuf order change when resizing is disabled Because ring_buffer_subbuf_order_set() frees buffer pages, we can't allow it when resizing is disabled. A non-consuming reader is at risk of use-after-free (rb_advance_iter()). Return -EBUSY on resize_disabled, matching ring_buffer_resize() behaviour.
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 patch: 6.18.45; f9b94daa542a8d2532f0930f01cd9aec2d19621b <7568e9e717e7540bd05bcc007f5d76fcaff3cdff; f9b94daa542a8d2532f0930f01cd9aec2d19621b <b45b91db41379ee5fb36c187d6d7c37b725cbe8e; f9b94daa542a8d2532f0930f01cd9aec2d19621b <bf98d7b0d5a99991e47e66cee4eb1d3fa514be97; patch: 7.2; patch: 6.12.104; patch: 7.1.9; patch: 0; 6.8; f9b94daa542a8d2532f0930f01cd9aec2d19621b <62978cf6347972c04130e4e841ba404504d92b32
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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