CVE-2023-31084: Debian Linux

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Debian Debian Linux: version 10.0 only; version 11.0 only; version 12.0 only
• Fedoraproject Fedora: version 37 only; version 38 only
• Linux Linux Kernel: version 6.2 only
• Netapp h410c Firmware: affected versions not specified

Published 2023-04-24. Last modified 2026-06-17.