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Unrated severityNVD Advisory· Published Apr 24, 2023· Updated Mar 18, 2025

CVE-2023-31084

CVE-2023-31084

Description

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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Affected products

280

Patches

Vulnerability mechanics

References

9

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