CVE-2026-72006: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: 888a7776f4fb04c19bec70c737c61c2f383c6b1e преди 262da8b6ea03d01ee7ed01ad309e4c89941f6b14; 888a7776f4fb04c19bec70c737c61c2f383c6b1e преди 6eb4cf2fa8997f62c11e0006dc010a1fd89c5a75; 888a7776f4fb04c19bec70c737c61c2f383c6b1e преди df6134b527a88b3e65ba6ae5073664af091d5fd2
• Linux Linux: 6.17; преди 6.17; 6.18.40 до 6.18.*; 7.1.5 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-2026-72006
• https://nvd.nist.gov/vuln/detail/CVE-2026-72006
• https://git.kernel.org/stable/c/262da8b6ea03d01ee7ed01ad309e4c89941f6b14
• https://git.kernel.org/stable/c/6eb4cf2fa8997f62c11e0006dc010a1fd89c5a75
• https://git.kernel.org/stable/c/df6134b527a88b3e65ba6ae5073664af091d5fd2