Loading vulnerability…
CVE-2022-48638 is an input-validation vulnerability in the Linux kernel cgroup subsystem. The cgroup_get_from_id() path resolved a supplied cgroup identifier to a kernfs node but did not verify that the resolved node was a directory. Subsequent cgroup handling assumes that a cgroup is represented by a kernfs directory; passing a non-directory node into that logic can trigger a kernel panic. The fix validates that the looked-up kernfs node is a directory before treating it as a cgroup.
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.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Insufficient validation of a looked-up kernfs node in Linux cgroup ID handling.
Linux kernel cgroup flaw caused by cgroup_get_from_id() not verifying that a looked-up kernfs node is a directory. Red Hat includes a fix in its RHEL 8.6 kernel security update.
A resolved Linux kernel cgroup flaw in which cgroup_get_from_id() did not verify that the looked-up kernfs node was a directory.
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.