Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix UMR XLT cleanup on ODP populate failure mlx5r_umr_update_xlt() allocates and DMA maps an XLT buffer with mlx5r_umr_create_xlt(). The buffer is released by the common cleanup path through mlx5r_umr_unmap_free_xlt(). After mlx5_odp_populate_xlt() became fallible, its error path returned directly and skipped that cleanup. This leaks the XLT DMA mapping and buffer. If the emergency XLT page was used, it also leaves xlt_emergency_page_mutex locked. Break out of the loop so execution falls through the existing cleanup path.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1efe8c0670d6a6883faa09c9abc746c741f5664a before ffa85a2c197935ace6f1634ad9eb0a44bc615670; affected 1efe8c0670d6a6883faa09c9abc746c741f5664a before 9619909d4869afe720904c6888a289b9ac3055b8; affected 1efe8c0670d6a6883faa09c9abc746c741f5664a before 1eae35b37923cb71b0cb5136d00671440d488b9f |
| Linux / Linux | affected 6.16; unaffected 0 before 6.16; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/ffa85a2c197935ace6f1634ad9eb0a44bc615670
- https://git.kernel.org/stable/c/9619909d4869afe720904c6888a289b9ac3055b8
- https://git.kernel.org/stable/c/1eae35b37923cb71b0cb5136d00671440d488b9f
ADP enrichment
No English description supplied.
No references supplied.