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CVE-2025-38392 is a locking flaw in the Linux kernel Intel Infrastructure Data Path Function (IDPF) Ethernet driver. When the VIRTCHNL2_CAP_MACFILTER capability is enabled, network-interface activation can enter MAC-filter synchronization with bottom halves disabled and the device address-list lock held. The execution path reaches idpf_ctlq_clean_sq(), which attempts to acquire the control-queue cq_lock mutex despite executing in atomic context. This causes a sleeping-function-in-invalid-context warning. The upstream correction replaces cq_lock with a spinlock and requests contiguous DMA memory so DMA-memory release cannot invoke vunmap() while the spinlock is held.
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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.
16 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel IDPF control-queue synchronization flaw addressed by converting its mutex to a spinlock.
A Linux kernel IDPF control-queue synchronization flaw fixed by converting a mutex to a spinlock.
A Linux kernel IDPF driver concurrency issue addressed by converting the control-queue mutex to a spinlock.
A Linux kernel IDPF driver control-queue locking issue fixed through the Red Hat kernel-rt security update.
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.