UnratedFix available
RDMA/mlx5: Drain RCU callbacks during module teardown
Type: advisorySources: OSV
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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.15.221, 6.1.188, 6.12.110, 6.18.52, 6.6.157, 7.2.6
- CVEs
- CVE-2026-93109
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 6 Nov 2026, 01:25 UTC · Revision 1
Source evidence
RDMA/mlx5: Drain RCU callbacks during module teardown
core-osv · Original sourcePublished 17 Sept 2026, 16:11 UTC
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.
osv:CVE-2026-93109
Kernel
Fixed versions: 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6
Complete source record
{
"id": "ec2d68b138f16ae4cae25b2bb5b7a39fe1ff9de158bd63d19d0c0db72a6425ff",
"url": "https://osv.dev/vulnerability/CVE-2026-93109",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "RDMA/mlx5: Drain RCU callbacks during module teardown",
"summary": "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.",
"evidence": "osv:CVE-2026-93109",
"products": [
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"name": {
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"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
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"value": "5.15.221",
"evidence": "/affected/1/ranges"
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{
"value": "6.1.188",
"evidence": "/affected/1/ranges"
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{
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{
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{
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{
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"severity": "unknown",
"structured": {
"id": "CVE-2026-93109",
"aliases": [
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"affected": [
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"events": [
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{
"fixed": "7.2.6"
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"package": {
"name": "Kernel",
"ecosystem": "Linux"
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"database_specific": {
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],
"modified": "2026-10-28T02:30:45.607457006Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/2f946e7839f677fa14574b6babad14b37ae0bbbe",
"https://git.kernel.org/stable/c/4664368b9bd9d5d79ebad24056b98c34b9fed20f",
"https://git.kernel.org/stable/c/4be7810ba70291abb2f68cc6db0ae1b93ee9c76a",
"https://git.kernel.org/stable/c/59d60e04afd012f07e996d2e34cb90a4ec6f5cff",
"https://git.kernel.org/stable/c/7babc25d8dd5b7642920fbc0737cfd1469e7025b",
"https://git.kernel.org/stable/c/ca428e597f12b278bf158356e34641e6386cfa82",
"https://git.kernel.org/stable/c/e37cdd75f8d61c1123d324ae5667ac3da562290e",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93109.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-93109",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93109.json"
}
},
"related_cves": [
{
"value": "CVE-2026-93109",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 513835,
"published_at": "2026-09-17T16:11:19.135+00:00"
}