UnratedFix available
RDMA/core: Wait for RCU callbacks before unloading ib_core
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Wait for RCU callbacks before unloading ib_core put_gid_ndev() is queued with call_rcu() and implemented in ib_core. Stopping the workqueues does not drain callbacks already queued, so RCU could invoke it after the module code has been unloaded. synchronize_rcu() does not wait for callbacks. Wait for them after all producers have stopped.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.270, 5.15.221, 6.1.188, 6.12.110, 6.18.52, 6.6.157, 7.2.6
- CVEs
- CVE-2026-93110
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 5 Nov 2026, 00:52 UTC · Revision 1
Source evidence
RDMA/core: Wait for RCU callbacks before unloading ib_core
core-osv · Original sourcePublished 17 Sept 2026, 16:11 UTC
In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Wait for RCU callbacks before unloading ib_core put_gid_ndev() is queued with call_rcu() and implemented in ib_core. Stopping the workqueues does not drain callbacks already queued, so RCU could invoke it after the module code has been unloaded. synchronize_rcu() does not wait for callbacks. Wait for them after all producers have stopped.
osv:CVE-2026-93110
Kernel
Fixed versions: 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6
Complete source record
{
"id": "ae6ff743de827f5885542c1e8a1c1dfe9df8489c05d8305f506ea8c6cca632a3",
"url": "https://osv.dev/vulnerability/CVE-2026-93110",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "RDMA/core: Wait for RCU callbacks before unloading ib_core",
"summary": "In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Wait for RCU callbacks before unloading ib_core put_gid_ndev() is queued with call_rcu() and implemented in ib_core. Stopping the workqueues does not drain callbacks already queued, so RCU could invoke it after the module code has been unloaded. synchronize_rcu() does not wait for callbacks. Wait for them after all producers have stopped.",
"evidence": "osv:CVE-2026-93110",
"products": [
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"severity": "unknown",
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"package": {
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"database_specific": {
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"modified": "2026-10-28T02:30:40.929058558Z",
"provider": "osv",
"references": [
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"https://git.kernel.org/stable/c/7d75592114d1664623c8cf191a12b38052c04483",
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"https://git.kernel.org/stable/c/8e4f1677c09d75d738099f42afcf65d8587b664a",
"https://git.kernel.org/stable/c/9d998297fdaf47492f6679287f6552879d1a7e3a",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93110.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-93110",
"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-2026-93110.json"
}
},
"related_cves": [
{
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"evidence": "/id"
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],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 508720,
"published_at": "2026-09-17T16:11:19.805+00:00"
}