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Unrated severityNVD Advisory· Published Jul 3, 2025· Updated Nov 3, 2025

RDMA/cma: Fix hang when cma_netevent_callback fails to queue_work

CVE-2025-38151

Description

In the Linux kernel, the following vulnerability has been resolved:

RDMA/cma: Fix hang when cma_netevent_callback fails to queue_work

The cited commit fixed a crash when cma_netevent_callback was called for a cma_id while work on that id from a previous call had not yet started. The work item was re-initialized in the second call, which corrupted the work item currently in the work queue.

However, it left a problem when queue_work fails (because the item is still pending in the work queue from a previous call). In this case, cma_id_put (which is called in the work handler) is therefore not called. This results in a userspace process hang (zombie process).

Fix this by calling cma_id_put() if queue_work fails.

Affected products

116

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

5

News mentions

0

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