CVE-2026-93108
RDMA/ipoib: Drain RCU callbacks during module teardown
Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/ipoib: Drain RCU callbacks during module teardown IPoIB reclamation completions can be signaled from inside an RCU callback. Teardown can wake before the callback returns and unload ib_ipoib while its code is still executing. Client registration failure can also remove already-added devices and queue callbacks. Wait after client and workqueue teardown.
INFO
Published Date :
Sept. 17, 2026, 5:18 p.m.
Last Modified :
Sept. 17, 2026, 5:18 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Drain RCU callbacks during module teardown.
- Wait after client and workqueue teardown.
- Apply kernel updates to resolve the race condition.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-93108.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-93108 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-93108
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2026-93108 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-93108 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 17, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: RDMA/ipoib: Drain RCU callbacks during module teardown IPoIB reclamation completions can be signaled from inside an RCU callback. Teardown can wake before the callback returns and unload ib_ipoib while its code is still executing. Client registration failure can also remove already-added devices and queue callbacks. Wait after client and workqueue teardown. Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/93xxx/CVE-2026-93108.json">CVE-2026-93108</a> Added Reference https://git.kernel.org/stable/c/24ce944721dcd92ae62e7a448d770e2a3e79f5fd Added Reference https://git.kernel.org/stable/c/2b3330cfc097db2d31f47ad09261967630270d66 Added Reference https://git.kernel.org/stable/c/31b7c700670830a0e8a4cdcd451c88a13cc5dc48 Added Reference https://git.kernel.org/stable/c/4a6dc313f9661f80e4ed43461d7ed5615c2450ca Added Reference https://git.kernel.org/stable/c/7bc08d7f9338c9f9c09965e5d020591c793a80cb Added Reference https://git.kernel.org/stable/c/8dc5ffcb8efcc01e44dd1ebc490eaae72de3fadf Added Reference https://git.kernel.org/stable/c/bb9c23733a0c50e136bd40c27cb60023cc58e22c Added Reference https://git.kernel.org/stable/c/d8917353966d1d5a486437dd0dd68a2cf8ecb136