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CVE-2024-35989 is a flaw in the Linux kernel dmaengine idxd driver’s CPU-offline callback path during driver removal. When the idxd module is removed on a system with only one online CPU, perf context migration is invoked although no valid target CPU exists. The invalid migration target results in a NULL-pointer dereference in the perf context migration path and a kernel oops.
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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.
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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.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel dmaengine/idxd flaw that can cause an oops during module removal on single-CPU platforms.
A Linux kernel DMA engine Intel Data Streaming Accelerator (idxd) flaw that could cause an oops during module removal on single-CPU systems.
Linux kernel dmaengine/idxd issue that can cause an oops when the module is removed on single-CPU platforms.
A Linux kernel DMA engine idxd flaw that can cause an oops when removing the module on single-CPU systems.
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.