RDMA/mlx5: Drain RCU callbacks during module teardown
Summary
| CVE | CVE-2026-93109 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-17 17:18:05 UTC |
| Updated | 2026-09-17 17:18:05 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Drain RCU callbacks during module teardown devx_free_subscription() can remain queued after the last DevX event file drops its module reference or an auxiliary driver detaches its devices. mlx5_ib can then unload before the callback runs. Registration error unwind has the same risk because driver registration can attach existing devices before failing. Wait after all drivers have stopped. |
Risk And Classification
EPSS: 0.002060000 probability, percentile 0.109910000 (date 2026-09-18)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 6898d1c661d79f4707d8ba82991b2195822780ca ca428e597f12b278bf158356e34641e6386cfa82 git | Not specified |
| CNA | Linux | Linux | affected 6898d1c661d79f4707d8ba82991b2195822780ca 59d60e04afd012f07e996d2e34cb90a4ec6f5cff git | Not specified |
| CNA | Linux | Linux | affected 6898d1c661d79f4707d8ba82991b2195822780ca 2f946e7839f677fa14574b6babad14b37ae0bbbe git | Not specified |
| CNA | Linux | Linux | affected 6898d1c661d79f4707d8ba82991b2195822780ca 4be7810ba70291abb2f68cc6db0ae1b93ee9c76a git | Not specified |
| CNA | Linux | Linux | affected 6898d1c661d79f4707d8ba82991b2195822780ca 7babc25d8dd5b7642920fbc0737cfd1469e7025b git | Not specified |
| CNA | Linux | Linux | affected 6898d1c661d79f4707d8ba82991b2195822780ca 4664368b9bd9d5d79ebad24056b98c34b9fed20f git | Not specified |
| CNA | Linux | Linux | affected 6898d1c661d79f4707d8ba82991b2195822780ca e37cdd75f8d61c1123d324ae5667ac3da562290e git | Not specified |
| CNA | Linux | Linux | affected 5.6 | Not specified |
| CNA | Linux | Linux | unaffected 5.6 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.221 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.188 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.157 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.110 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.52 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2.6 7.2.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.3-rc1 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/ca428e597f12b278bf158356e34641e6386cfa82 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/4664368b9bd9d5d79ebad24056b98c34b9fed20f | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/e37cdd75f8d61c1123d324ae5667ac3da562290e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/4be7810ba70291abb2f68cc6db0ae1b93ee9c76a | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/7babc25d8dd5b7642920fbc0737cfd1469e7025b | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/59d60e04afd012f07e996d2e34cb90a4ec6f5cff | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/2f946e7839f677fa14574b6babad14b37ae0bbbe | 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.