An issue was discovered in drivers/media/dvb-core/dvb_frontend.c in the Linux kernel 6.2. There is a blocking operation when a task is in !TASK_RUNNING. In dvb_frontend_get_event, wait_event_interruptible is called; the condition is dvb_frontend_test_event(fepriv,events). In dvb_frontend_test_event, down(&fepriv->sem) is called. However, wait_event_interruptible would put the process to sleep, and down(&fepriv->sem) may block the process.
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References
History
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MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2023-04-24T00:00:00
Updated: 2024-08-02T14:45:25.766Z
Reserved: 2023-04-24T00:00:00
Link: CVE-2023-31084
Vulnrichment
No data.
NVD
Status : Modified
Published: 2023-04-24T06:15:07.997
Modified: 2024-11-21T08:01:22.970
Link: CVE-2023-31084
Redhat