Not yet scoredPublished Sep 17, 2026

CVE-2026-93109RDMA/mlx5: Drain RCU callbacks during module teardown

Updated under an hour ago (Oct 28, 2026, 1:10 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 6898d1c661d79f4707d8ba82991b2195822780ca before ca428e597f12b278bf158356e34641e6386cfa82; 6898d1c661d79f4707d8ba82991b2195822780ca builds before 59d60e04afd012f07e996d2e34cb90a4ec6f5cff; 6898d1c661d79f4707d8ba82991b2195822780ca builds before 2f946e7839f677fa14574b6babad14b37ae0bbbe; 6898d1c661d79f4707d8ba82991b2195822780ca builds before 4be7810ba70291abb2f68cc6db0ae1b93ee9c76a; 6898d1c661d79f4707d8ba82991b2195822780ca builds before 7babc25d8dd5b7642920fbc0737cfd1469e7025b; from 6898d1c661d79f4707d8ba82991b2195822780ca before 4664368b9bd9d5d79ebad24056b98c34b9fed20f; from 6898d1c661d79f4707d8ba82991b2195822780ca before e37cdd75f8d61c1123d324ae5667ac3da562290e	CNA record

References

References

https://git.kernel.org/stable/c/ca428e597f12b278bf158356e34641e6386cfa82
https://git.kernel.org/stable/c/59d60e04afd012f07e996d2e34cb90a4ec6f5cff
https://git.kernel.org/stable/c/2f946e7839f677fa14574b6babad14b37ae0bbbe
https://git.kernel.org/stable/c/4be7810ba70291abb2f68cc6db0ae1b93ee9c76a
https://git.kernel.org/stable/c/7babc25d8dd5b7642920fbc0737cfd1469e7025b
https://git.kernel.org/stable/c/4664368b9bd9d5d79ebad24056b98c34b9fed20f
https://git.kernel.org/stable/c/e37cdd75f8d61c1123d324ae5667ac3da562290e

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.