In the Linux kernel, the following vulnerability has been resolved:
net: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start()
sparx_stats_init() calls create_singlethread_workqueue() and not
checked the ret value, which may return NULL. And a null-ptr-deref may
happen:
sparx_stats_init()
create_singlethread_workqueue() # failed, sparx5->stats_queue is NULL
queue_delayed_work()
queue_delayed_work_on()
__queue_delayed_work() # warning here, but continue
__queue_work() # access wq->flags, null-ptr-deref
Check the ret value and return -ENOMEM if it is NULL. So as
sparx5_start().
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Affected Vendors & Products
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History
Fri, 02 May 2025 14:00:00 +0000
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cvssV3_1
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Thu, 01 May 2025 14:30:00 +0000
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Description | In the Linux kernel, the following vulnerability has been resolved: net: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start() sparx_stats_init() calls create_singlethread_workqueue() and not checked the ret value, which may return NULL. And a null-ptr-deref may happen: sparx_stats_init() create_singlethread_workqueue() # failed, sparx5->stats_queue is NULL queue_delayed_work() queue_delayed_work_on() __queue_delayed_work() # warning here, but continue __queue_work() # access wq->flags, null-ptr-deref Check the ret value and return -ENOMEM if it is NULL. So as sparx5_start(). | |
Title | net: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start() | |
References |
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Status: PUBLISHED
Assigner: Linux
Published: 2025-05-01T14:09:32.854Z
Updated: 2025-05-04T08:45:44.756Z
Reserved: 2025-05-01T14:05:17.225Z
Link: CVE-2022-49806

No data.

Status : Awaiting Analysis
Published: 2025-05-01T15:16:03.920
Modified: 2025-05-02T13:53:20.943
Link: CVE-2022-49806
