CVE-2026-93109
RDMA/mlx5: Drain RCU callbacks during module teardown
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
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Affected Versions
Linux / Linux
6898d1c661d79f4707d8ba82991b2195822780ca < ca428e597f12b278bf158356e34641e6386cfa82 6898d1c661d79f4707d8ba82991b2195822780ca < 59d60e04afd012f07e996d2e34cb90a4ec6f5cff 6898d1c661d79f4707d8ba82991b2195822780ca < 2f946e7839f677fa14574b6babad14b37ae0bbbe 6898d1c661d79f4707d8ba82991b2195822780ca < 4be7810ba70291abb2f68cc6db0ae1b93ee9c76a 6898d1c661d79f4707d8ba82991b2195822780ca < 7babc25d8dd5b7642920fbc0737cfd1469e7025b 6898d1c661d79f4707d8ba82991b2195822780ca < 4664368b9bd9d5d79ebad24056b98c34b9fed20f 6898d1c661d79f4707d8ba82991b2195822780ca < e37cdd75f8d61c1123d324ae5667ac3da562290e
Linux / Linux
5.6
References
git.kernel.org: https://git.kernel.org/stable/c/ca428e597f12b278bf158356e34641e6386cfa82 git.kernel.org: https://git.kernel.org/stable/c/59d60e04afd012f07e996d2e34cb90a4ec6f5cff git.kernel.org: https://git.kernel.org/stable/c/2f946e7839f677fa14574b6babad14b37ae0bbbe git.kernel.org: https://git.kernel.org/stable/c/4be7810ba70291abb2f68cc6db0ae1b93ee9c76a git.kernel.org: https://git.kernel.org/stable/c/7babc25d8dd5b7642920fbc0737cfd1469e7025b git.kernel.org: https://git.kernel.org/stable/c/4664368b9bd9d5d79ebad24056b98c34b9fed20f git.kernel.org: https://git.kernel.org/stable/c/e37cdd75f8d61c1123d324ae5667ac3da562290e