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CVE-2026-93109

Unknown

Last modified

CVE-2026-93109 is a vulnerability of currently unknown severity. 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..

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 6898d1c661d79f4707d8ba82991b2195822780ca, < ca428e597f12b278bf158356e34641e6386cfa82; >= 6898d1c661d79f4707d8ba82991b2195822780ca, < 59d60e04afd012f07e996d2e34cb90a4ec6f5cff; >= 6898d1c661d79f4707d8ba82991b2195822780ca, < 2f946e7839f677fa14574b6babad14b37ae0bbbe; >= 6898d1c661d79f4707d8ba82991b2195822780ca, < 4be7810ba70291abb2f68cc6db0ae1b93ee9c76a; >= 6898d1c661d79f4707d8ba82991b2195822780ca, < 7babc25d8dd5b7642920fbc0737cfd1469e7025b; >= 6898d1c661d79f4707d8ba82991b2195822780ca, < 4664368b9bd9d5d79ebad24056b98c34b9fed20f; >= 6898d1c661d79f4707d8ba82991b2195822780ca, < e37cdd75f8d61c1123d324ae5667ac3da562290e
LinuxLinux5.6

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-93109?
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.
How severe is CVE-2026-93109?
Severity scoring for CVE-2026-93109 is pending analysis.
How do I fix CVE-2026-93109?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST