Loading vulnerability…
CVE-2021-46909 is a Linux kernel defect affecting ARM Footbridge PCI interrupt mapping. A PCI-core change causes the platform IRQ-mapping callback to be invoked when a PCI driver is probed. The affected Footbridge mapping functions were incorrectly marked for initialization-only use and could therefore be discarded after kernel initialization. Probing or binding a PCI driver after initialization could invoke the discarded callback and trigger a kernel oops.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
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.
If you can’t patch tonight, do this now.
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.
A Linux kernel PCI interrupt-mapping flaw that can cause an oops.
Linux kernel PCI interrupt-mapping flaw that can cause a kernel oops.
Linux kernel PCI interrupt-mapping flaw that can cause a kernel oops.
Linux kernel PCI interrupt-mapping flaw that can cause a kernel oops.
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.