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CVE-2024-38556 is an out-of-bounds access vulnerability in the Linux kernel net/mlx5 driver’s command-queue handling. Forced completion processing can operate on a command entry before an index has been assigned, resulting in an access using index -22. The flaw results from waiting indefinitely for the command-queue semaphore before the entry has obtained its index. The fix waits for either index allocation or semaphore-acquisition timeout before starting the firmware-completion timer.
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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.
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.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Vulnerability referenced by the advisory; no individual description is provided.
A missing timeout when acquiring a command-queue semaphore in the Linux kernel mlx5 network driver.
Linux kernel mlx5 network-driver flaw involving acquisition of the command-queue semaphore without a timeout.
Linux kernel net/mlx5 flaw addressed by adding a timeout when acquiring the command-queue semaphore.
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.