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.
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Affected Vendors & Products
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History
Fri, 04 Jul 2025 00:30:00 +0000
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cvssV3_1
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Thu, 03 Jul 2025 09:00:00 +0000
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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. | |
Title | RDMA/cma: Fix hang when cma_netevent_callback fails to queue_work | |
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Status: PUBLISHED
Assigner: Linux
Published: 2025-07-03T08:35:55.879Z
Updated: 2025-07-28T04:13:40.970Z
Reserved: 2025-04-16T04:51:23.989Z
Link: CVE-2025-38151

No data.

Status : Awaiting Analysis
Published: 2025-07-03T09:15:30.093
Modified: 2025-07-03T15:13:53.147
Link: CVE-2025-38151
