RDMA/rtrs-clt: Fix CQ pool leak when connect is interrupted
Summary
| CVE | CVE-2026-98352 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-06 09:18:28 UTC |
| Updated | 2026-10-06 09:18:28 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: RDMA/rtrs-clt: Fix CQ pool leak when connect is interrupted The client borrows shared CQ credits in the ADDR_RESOLVED handler via ib_cq_pool_get(), before the peer is connected. create_cm() can return -ERESTARTSYS from wait_event_interruptible_timeout() without destroying the CM ID. The init_conns() and stop-and-destroy paths then call destroy_con_cq_qp() while cq is still NULL (no PUT) and only afterwards rdma_destroy_id(). CMA serializes the handler against rdma_destroy_id() with handler_mutex, but that does not order the GET against destroy_con_cq_qp(). If ADDR_RESOLVED has already passed the DESTROYING check, it can take con_mutex, GET credits, and then lose the con to kfree. Device unregister later hits WARN_ON(cq->cqe_used) in ib_cq_pool_cleanup(). Set a per-connection flag under con_mutex before CQ/QP teardown so a racing ADDR_RESOLVED cannot borrow credits after teardown has begun. |
Risk And Classification
EPSS: 0.001680000 probability, percentile 0.054880000 (date 2026-10-06)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 3b89e92c2a95a39c38a3808f4528e502a39bd94d a82cca40139d9fcae8208901856bd5bb4051f097 git | Not specified |
| CNA | Linux | Linux | affected 3b89e92c2a95a39c38a3808f4528e502a39bd94d 74c4ed55e61f1b65ddbebc5b635d136461a1c3da git | Not specified |
| CNA | Linux | Linux | affected 3b89e92c2a95a39c38a3808f4528e502a39bd94d 6f8020fe7465f49e234a576c04e415e9d08c7878 git | Not specified |
| CNA | Linux | Linux | affected 3b89e92c2a95a39c38a3808f4528e502a39bd94d 31024e158b45358370a0a14ed96589e6aa62d6cb git | Not specified |
| CNA | Linux | Linux | affected 3b89e92c2a95a39c38a3808f4528e502a39bd94d 8f253d5893f991742464b9e7203c43fc08d0aa11 git | Not specified |
| CNA | Linux | Linux | affected 3b89e92c2a95a39c38a3808f4528e502a39bd94d bf88ac4867050112a6c819c8d1a7209bf48ef427 git | Not specified |
| CNA | Linux | Linux | affected 3b89e92c2a95a39c38a3808f4528e502a39bd94d 2ae16aaa78b5edc6e6d0904c84fd9cdfb762bcda git | Not specified |
| CNA | Linux | Linux | affected 5.13 | Not specified |
| CNA | Linux | Linux | unaffected 5.13 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.222 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.189 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.158 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.112 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.54 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2.8 7.2.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.3-rc4 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/31024e158b45358370a0a14ed96589e6aa62d6cb | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/2ae16aaa78b5edc6e6d0904c84fd9cdfb762bcda | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/8f253d5893f991742464b9e7203c43fc08d0aa11 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/74c4ed55e61f1b65ddbebc5b635d136461a1c3da | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/bf88ac4867050112a6c819c8d1a7209bf48ef427 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/a82cca40139d9fcae8208901856bd5bb4051f097 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/6f8020fe7465f49e234a576c04e415e9d08c7878 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.