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CVE-2022-41218 is a race-condition use-after-free vulnerability in the Linux kernel DVB core subsystem, in drivers/media/dvb-core/dmxdev.c, affecting dvb_demux_open and dvb_dmxdev_release through Linux kernel 5.19.10. The DVB core implements the Digital Video Broadcasting API used by digital-TV devices. Refcount races during DVB device handling can result in access to memory after it has been freed.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel dvb-core/dmxdev vmalloc use-after-free vulnerability.
Linux kernel DVB demux vmalloc use-after-free.
Use-after-free in the DVB core demux device subsystem.
A medium-severity Linux kernel use-after-free vulnerability in the dvb-core dmxdev component. A race condition can be triggered locally through physical removal of a USB DVB demultiplexer device while malicious code executes.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.