Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 888a7776f4fb04c19bec70c737c61c2f383c6b1e before 262da8b6ea03d01ee7ed01ad309e4c89941f6b14; affected 888a7776f4fb04c19bec70c737c61c2f383c6b1e before 6eb4cf2fa8997f62c11e0006dc010a1fd89c5a75; affected 888a7776f4fb04c19bec70c737c61c2f383c6b1e before df6134b527a88b3e65ba6ae5073664af091d5fd2 |
| Linux / Linux | affected 6.17; unaffected 0 before 6.17; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.