Astra Linux – Vulnerabilities in Linux, Linux-5.15, Linux-5.10

A issue was discovered in the file drivers/media/dvb-core/dvbfrontend.c within the Linux kernel version 6.2. There is a blocking operation that occurs when a task is in the !TASKRUNNING state. In the function dvbfrontendgetevent, the function waiteventinterruptible is called; the condition used i...

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(feprivevents). 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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