CVE-2026-93109RDMA/mlx5: Drain RCU callbacks during module teardown
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- Sep 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
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
- 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.