CVE-2026-72006
CVE CVE-2026-72006EUVD EUVD-2026-59105Published 2026-08-15T05:51:36.000ZLast changed 2026-08-17T05:06:27.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: free mlx5_st_idx_data on final dealloc Workloads that repeatedly allocate and release mkeys carrying TPH steering-tag hints (e.g. churning RDMA MRs) leak one struct mlx5_st_idx_data per cycle; kmemleak flags it as unreferenced and the kmalloc slab grows over time. When the last reference to an ST table entry is dropped, mlx5_st_dealloc_index() removed the entry from idx_xa but the backing mlx5_st_idx_data allocation was never freed. Free idx_data after the xa_erase() so the lifetime of the bookkeeping struct matches the lifetime of the ST entry it tracks.
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 6.17; patch: 7.2; 888a7776f4fb04c19bec70c737c61c2f383c6b1e <6eb4cf2fa8997f62c11e0006dc010a1fd89c5a75; 888a7776f4fb04c19bec70c737c61c2f383c6b1e <df6134b527a88b3e65ba6ae5073664af091d5fd2; patch: 6.18.40; patch: 7.1.5; 888a7776f4fb04c19bec70c737c61c2f383c6b1e <262da8b6ea03d01ee7ed01ad309e4c89941f6b14; patch: 0
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
Does this concern one of your customers?
This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.
Try it for 28 daysPatchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.