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CVE-2023-1855 is a use-after-free vulnerability in the Linux kernel APM X-Gene hardware-monitoring driver. A race condition in the xgene_hwmon_remove removal path can access driver resources after they have been freed. The flaw was fixed upstream in Linux kernel 6.3-rc3.
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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.
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.
13 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel X-Gene hardware-monitoring driver use-after-free in xgene_hwmon_remove.
Linux kernel X-Gene hardware-monitor driver use-after-free vulnerability.
Linux kernel use-after-free in xgene_hwmon_remove().
Linux kernel use-after-free vulnerability in xgene_hwmon_remove().
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.