Astra Linux – vulnerability in linux, linux-5.10, linux-5.15

In drivers/media/dvb-core/dmxdev.c within the Linux kernel up to version 5.19.10, there is a use-after-free caused by refcount races, affecting dvbdemuxopen and dvbdmxdevrelease...

EUVD-2022-55764

In the Linux kernel, the following vulnerability has been resolved: media: vidtv: Fix use-after-free in vidtvbridgedvbinit KASAN reports a use-after-free: BUG: KASAN: use-after-free in dvbdmxdevrelease+0x4d5/0x5d0 dvbcore Call Trace: ... dvbdmxdevrelease+0x4d5/0x5d0 dvbcore...

kernel: Report vmalloc UAF in dvb-core/dmxdev

A use-after-free flaw was found in the Linux kernel’s dvb-core subsystem DVB API used by Digital TV devices in how a user physically removed a USB device such as a DVB demultiplexer device while running malicious code. This flaw allows a local user to crash or potentially escalate their privilege...